CN100419277C - Remote controller for heavy construction machines with follower pushrod - Google Patents
Remote controller for heavy construction machines with follower pushrod Download PDFInfo
- Publication number
- CN100419277C CN100419277C CNB2004800194726A CN200480019472A CN100419277C CN 100419277 C CN100419277 C CN 100419277C CN B2004800194726 A CNB2004800194726 A CN B2004800194726A CN 200480019472 A CN200480019472 A CN 200480019472A CN 100419277 C CN100419277 C CN 100419277C
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- Prior art keywords
- push rod
- cavity
- head end
- remote controllers
- handle
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- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/0422—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with manually-operated pilot valves, e.g. joysticks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B2013/0409—Position sensing or feedback of the valve member
Abstract
The invention relates to a remote controller for heavy construction machines with a body, comprising a cavity, running between a first outlet end and a base, a first pushrod, running between a head and a base, arranged to slide with a back and forth movement in the cavity along an axial direction, a handle which may pivot with relation to the body, whereby a skirt of said handle is in direct contact with the head. The first pushrod may furthermore be moved to an extended position opposite to the depressed position with relation to the idle position thereof. First elastic return means are arranged in the cavity to force the pushrod into the extended position thereof and detection means are provided to detect the position of the first pushrod.
Description
Technical field
The present invention relates to the remote controllers of heavy construction machinery, especially electric hydaulic type remote controllers technical field.
The present invention is specifically related to a kind of remote controllers, and it particularly controls the user of pressure fluid by controlling one or more receivers by the handle of operator's operation, thereby transmits control signal to described hydraulic pressure receiver.
Background technique
The remote controllers that are generally used for heavy construction machinery comprise:
One main body, this main body comprises at least one cavity, this cavity is extending between the opening end of the end face upper shed of main body and the bottom in the opposite end of opening end at least;
At least one first push rod, this first push rod is moving between head end and the foot and is being installed into and can slidably reciprocates between rest position and depressed position vertically in described at least one cavity in main body, and can be controlled in one first receiver beyond the remote controllers at least.
One handle, this handle comprises a lateral flange and is installed into the end face pivoted that can be in reverse to described main body with respect to main body, to control moving back and forth of described first push rod, this flange is exactly the head end that is leaning on described push rod, and presss from both sides a variable acute angle between handle axis and the push rod axis.
Although this remote controllers can be controlled the motion of receiver satisfactorily, but they need a large amount of elements, they must have several push rods, and each push rod is equipped with monitoring device, to monitor each push rod position occupied between its rest position and depressed position.Thereby the cost of this remote controllers is very high, and their stability can be subjected to one adverse effect in a large amount of elements.
Summary of the invention
Therefore, an object of the present invention is by providing a kind of remote controllers to remedy above-mentioned shortcoming, the quantity of element has reduced and can keep identical functions in these remote controllers.For this reason, according to the present invention, the characteristics of the remote controllers of the above-mentioned type are basically: the head end of at least the first push rod also can move to being positioned at the extended position of described rest position to a reverse side of depressed position; First elastic recovery device promotes the head end of this push rod to its extended position, thereby the head end of at least the first push rod can move upward automatically; And these remote controllers also comprise the monitoring device of the head end position occupied between its projection and depressed position that is used to monitor first push rod.
Like this, rely on these means, the push rod quantity that is equipped with monitoring device has been reduced, because have only a push rod to need monitoring device, two push rods in remote controllers all need the prior art and do not resemble.
Advantageously, monitoring device is the type that does not have Mechanical Contact.
As preferable situation, monitoring device comprises a magnet that can move as a whole with the head end of push rod.
According to a possibility, cavity is stair-stepping, and comprises more or less one first convex shoulder transverse to the movement direction of first push rod, and described push rod comprises an intermediate portion.This intermediate portion is with the head end of push rod and foot moves as a whole and between its head end and its foot, and limits a top stopper and a bottom stopper.When push rod during at extended position the top stopper against first convex shoulder, and when described push rod during in depressed position the bottom stopper against the bottom of cavity.
As a preferable situation, first recovery device is accommodated in the cavity.
Still as a preferable situation, first recovery device comprises: a collar, and this collar is supported by intermediate portion near the stopper of top; And, one first pressure spring, this pressure spring is inserted between the bottom of the collar and cavity.
According to another possibility, cavity comprises substantially the convex shoulder transverse to the first pushrod movement direction, and described push rod comprises a head end and a foot, and they are motion and can be along the axis of push rod with respect to an intermediate portion translation together as a whole.This intermediate portion is between head end and foot and limit a top stopper and a bottom stopper, the top stopper is against convex shoulder when the head end of push rod is between its rest position and its extended position, and when described push rod during in depressed position the bottom stopper against the bottom of cavity.
First elastic recovery device is accommodated between the intermediate portion of the head end of push rod and push rod, and this is preferable.
According to an embodiment, first elastic recovery device comprises one first pressure spring, and this spring is inserted between the intermediate portion of the head end of push rod and push rod.
Advantageously, in cavity, hold second elastic recovery device, so that first push rod is got back to its rest position from its depressed position.
According to a possibility, second recovery device comprises that one is inserted in second pressure spring and a peripheral projection between ring and the cavity bottom with the concentric ring, of first push rod.This peripheral projection and first push rod move as one and tend to against ring.Cavity also comprises one second convex shoulder, and ring is against this convex shoulder when first push rod is positioned at rest position.
According to another possibility, second recovery device comprises: a collar, and this collar is supported by intermediate portion near the stopper of top; And, one second pressure spring, this pressure spring is inserted between the bottom of the collar and cavity.
Advantageously, one second push rod is installed in one second cavity of main body, this second push rod is by one the 3rd pressure spring resiliency urged, so that must be applied on the handle so that press down the power substantially constant of one of first and second push rods.
According to an embodiment, the axis symmetry when second cavity and first cavity are positioned at rest position with respect to handle.
Advantageously, the head end of at least the second push rod can move to the extended position on the reverse side from described rest position to depressed position, and elastic recovery device promotes the head end of push rod to its extended position, thereby the head end of second push rod can be moved upward automatically.
According to an embodiment, the foot of first push rod be installed into can be by cavity the bottom and with magnetic body support in cavity.
Advantageously, a Hall effect transducer is installed in the main body of remote controllers, and is pressed down and the depressed position of projection and the motion between the extended position at first push rod towards magnet.
According to an embodiment, with respect to first push rod, second push rod is positioned at the opposite side of the axis of handle.
Advantageously, Hall effect transducer is encapsulated in the resin, thereby is positioned at a sealing station.
In any case, under help, can have clearly the present invention and understand below with reference to the description of accompanying drawing, these accompanying drawings show three embodiments according to remote controllers of the present invention with the example of indefiniteness.
Description of drawings
Fig. 1 is the longitdinal cross-section diagram according to first embodiment's remote controllers;
Fig. 2 is the enlarged view of first push rod shown in Figure 1;
Fig. 3 and 4 is and the similar view of Fig. 1 and 2 that handle pivot is rotated, thereby first push rod is moved on to depressed position;
Fig. 5 and 6 is and the similar view of Fig. 1 and 2 that handle is to opposite position pivoted, so that first push rod moves to its extended position;
Fig. 7 is the longitdinal cross-section diagram according to second embodiment's remote controllers;
Fig. 8 is and the similar view of Fig. 7 that handle pivot is rotated, thereby first push rod is moved on to depressed position;
Fig. 9 is and the similar view of Fig. 7 that handle is to opposite position pivoted, so that the head end of first push rod moves to its extended position;
Figure 10 is the longitdinal cross-section diagram according to the 3rd embodiment's remote controllers;
Figure 11 is and the similar view of Figure 10 that handle pivot is rotated, thereby first push rod is moved on to depressed position;
Figure 12 is and the similar view of Figure 10 that handle is to opposite position pivoted, so that the head end of first push rod moves to its extended position;
Embodiment
Fig. 1 shows the remote controllers 1 that are used for heavy construction machinery, is that behaviour is known to a certain extent.These remote controllers comprise: a main body 2; At least one first push rod 3, this first push rod are installed into and can slide in main body 2; And one handle 4, this handle are installed into can be with respect to the main body pivoted, thereby controls first push rod 3 moving back and forth in main body 2.
First push rod 3 is installed into and can slides in one first cavity 5, and this first cavity is in motion between opening end 6 of an end face 7 upper sheds of main body 2 and the bottom 8 in the opposite end of this opening end 6 at least.
Handle 4 is installed into can be with respect to main body 2, in the face of end face 7 pivoted of this main body, to control moving back and forth of described first push rod 3.This one handle 4 has an axis Y-Y and has the lateral flange 10 that described at least one first push rod 3 is controlled.Press from both sides a variable acute angle between the axis Y-Y of handle 4 and the axis of first push rod 3, this acute angle depends on the given location of push rod.When handle 4 was in rest position, such as illustrated in fig. 1 and 2, it moved along the axis X-X of main body 2.Handle position shown in Fig. 3 and 5 makes described first push rod 3 be placed in depressed position and extended position respectively.
For this reason, described push rod 3 moves between a head end 12 and a foot 13.Head end 12 is installed into and can moves around at opening end 6 places of main body 2, thereby the flange 10 of handle 4 is just leaned against on this head end 12.The foot 13 of push rod 3 is accommodated in the cavity 5, to be controlled at first receiver of remote controllers outside at least.
The head end 12 of first push rod 3 is against the downside of the flange 10 of handle 4, and is placed between its rest position and the depressed position shown in Fig. 3 and 4 as illustrated in fig. 1 and 2 in mode known in the prior art situation.
According to an essential characteristics of the present invention, this first push rod 3 also can move on to extended position as illustrated in Figures 5 and 6, and this extended position is at the opposite side of rest position to the direction of depressed position.
In order to accomplish this point, remote controllers according to the present invention have first elastic recovery device 15, and this first elastic recovery device is accommodated in the cavity 5 shifting first push rod 3 onto its extended position, thereby this push rod carries out its intrinsic moving upward.In this moved upward, handle 4 pivotally supported modes were disengaged for the head end 12 with push rod 3, thereby head end 12 moves upward, only just to follow flange 10 motions under the effect of first elastic recovery device 15.
In addition, in order to control the described first outside receiver, remote controllers 1 comprise that also monitoring device 17 is to monitor first push rod 3 occupied any position between its extended position and depressed position.
Also have a kind of preferable case to be: cavity 5 is stepped and comprise that one first convex shoulder 20, this first convex shoulder are positioned at opening end below 6 and substantially transverse to the movement direction motion of first push rod 3, and is promptly more or less rectangular with axis X-X.In addition, push rod 3 has an intermediate portion 22, and the diameter of this intermediate portion is greater than the head end 12 and the foot 13 of this push rod, and installs along the length of described push rod.In this embodiment, head end 12, foot 13 and intermediate portion 22 are whole moving.Like this, this intermediate portion has an end face 23 that is defined as a top stopper and a bottom surface 24 that is defined as a bottom stopper.End face 23 is towards first convex shoulder 20, and bottom surface 24 is in the face of the bottom 8 of cavity 5.
Like this, along with push rod 3 moves around in this cavity 5, top stopper 23 will be as illustrated in Figures 5 and 6 like that against first convex shoulder 20, to limit the extended position of this push rod 3, and when push rod during in the depressed position shown in Fig. 3 and 4, bottom stopper 24 will be against the bottom 8 of this cavity.
Preferably, first elastic recovery device 15 is included near top stopper 23 collars 26 by intermediate portion 22 supportings, and this collar is towards the bottom 8 of cavity 5.First elastic recovery device 15 also comprises one first pressure spring 27, and this spring is inserted between the bottom 8 of the collar 26 and cavity 5.The slightly larger in diameter of this first pressure spring 27 is in intermediate portion 22, thereby can be pulled on this part, arrives the collar 26 places up to it.
Like this, first push rod 3 has by moving upward that first pressure spring 27 applies, thereby when the flange 10 of the head end 12 of push rod 3 and handle 4 was disengaged, push rod 3 moved upward to its extended position by compression set 27.
In addition, according to another feature of the present invention, remote controllers 1 have second elastic recovery device 30, and this device is accommodated in the cavity 5, so that first push rod 3 is returned to its rest position shown in Fig. 1 and 2 from its depressed position shown in Fig. 3 and 4.
As more specifically showing in Fig. 3 and 4, second elastic recovery device 30 comprises a ring 31 concentric with first push rod 3, be inserted in one second pressure spring 32 and a peripheral projection 33 between the bottom 8 of this ring 31 and cavity 5, and this peripheral projection and first push rod 3 are mobile integratedly and against encircling 31.In addition, cavity 5 has one second convex shoulder 35, a certain height of this second convex shoulder between the bottom 8 of first convex shoulder 20 and cavity 5.When first push rod 3 is in its rest position shown in Fig. 1 and 2, second pressure spring 32 will encircle 31 and promote to second convex shoulder 35, thereby encircle 31 against second convex shoulder.Like this, how many second convex shoulders 35 has formed the rest position of push rod 3.
Like this, be applied at trend flange 10 that push rod 3 is pressed down between the effect of effect on the head end 12 and first pressure spring and second pressure spring 27 and 32, push rod 3 is equilibrated at its rest position.On this rest position, ring is 31 against second convex shoulder 35, and peripheral projection 33 under the effect of handle 4 against ring 31.
When push rod 3 is positioned at its depressed position shown in Fig. 3 and 4, the flange 10 of handle 4 pushes away the head end 12 of push rod 3 downwards, move downward and compress pressure spring 27 and 32 thereby make intermediate portion 22 drive concentric rings 31, up to the bottom 8 of this intermediate portion 22 downwardly against cavity 5.
On the contrary, when push rod 3 was in its extended position shown in Fig. 5 and 6, the head end 12 of this push rod was disengaged with the flange 10 of handle 4, thus intermediate portion 22 under the effect of first pressure spring 27 upwards against first convex shoulder 20.Be returned to from depressed position the process of extended position, pressure spring 27 and 32 unclamps.When push rod when its rest position moves to its extended position, concentric ring 31 is against second convex shoulder 35 of living cavity 5, and peripheral projection 33 no longer contacts with ring 31.
According to the inclination that gives handle 4, push rod 3 can occupy the arbitrary position between its depressed position and its extended position.
The foot 13 of push rod 3 stretches out outside the bottom 8 of cavity 5, thus in the moving back and forth between its projection and depressed position by this bottom.
As another preferable situation be: monitoring device 17 is not for to have the type of Mechanical Contact and to comprise a for example magnet 40, this magnet moves as an integral body, same Hall effect transducer 41 with push rod 3 by foot 13 inside that are installed in push rod 3, this Hall effect transducer is installed in the main body 2 of remote controllers 1, in the face of magnet 40 moving between the depressed position of first push rod 3 and extended position.Or rather, this Hall effect transducer 41 is installed in the main body 2, stretches out outside the bottom 8 of cavity 5.Like this, this sensor 41 can be encapsulated in a kind of material such as resin with its sealing.
In addition, even this first push rod 3 can oneself be controlled first receiver, but, one second push rod 50 is installed still in the main body 2 of remote controllers 1 for balance handle 4.This second push rod 50 is a passive push rod, because it can not transmit control signal to a receiver.It is installed in the cavity 51 that is formed in the main body 2, and this cavity is in a side relative with first cavity 5 on the axis of handle 4.This second push rod 50 also has a head end 52 and a foot 53 of flange 10 belows that place handle 4.This foot 53 is against the bottom of second cavity 51 and have against a collar 53 at the top 56 of cavity 51.Cavity 51 parallel to the axis X-X, between height, extend by the height at 8 places, bottom of cavity 5 and the rest position place that limits by second convex shoulder 35 of first cavity 5.
Like this, have only first push rod 3 to be equipped with the device that is used to control a receiver, and second push rod 50 just is provided with in order to make the power symmetry that acts on the handle 4.So just reduced the quantity of element, thereby made cost and technical break down dangerous minimum.
In addition, an active mechanical also can be set between the head end 12 of push rod 3 connect, in case one of pressure spring lost efficacy or jammed situation generation when push rod 3 moves upward.
As first embodiment and known basically, according to second embodiment of the present invention shown in Fig. 7 and 9, the remote controllers 1 that are used for heavy construction machinery comprise: at least one first push rod 62, this first push rod are installed into and can slide in main body 2; And one handle 4, this handle are installed into can be with respect to the main body pivoted, thereby controls first push rod 62 moving back and forth in main body 2.
As another preferable situation be: cavity 63 comprises a convex shoulder 64, and this convex shoulder is positioned at opening end 65 belows and substantially transverse to the movement direction motion of first push rod 62, and is promptly basic and axis X-X is rectangular.
In this embodiment, push rod 62 comprises:
-one head end 67, this head end is with the form manufacturing of a lid, and this lid comprises a cylindrical shell, end 68 place's closures that this housing contacts with the flange 10 of handle 4 in its trend, thus form a closed end;
-one foot 69, this foot are with the form manufacturing of a cylindrical bar, and the diameter of this cylindrical bar is less than the diameter of the housing in the head end 67, and head end 67 is fixed in the closed end of housing with one heart by its one of them end;
-one intermediate portion 70, its integral body is cylindrical, and comprises a cylindrical shell 72 of the end opposite that is used for holding lid, this lid has been formed the head end 67 of that end that contacts with handle 4 in trend.
The closed end of housing 72 comprises the central opening 73 of axis X-X, and has the diameter that more or less equates with the pole of foot 69, so that the latter can pass through.
This layout guarantees that foot 69 and head end 67 move as an integral body, and can be along axis X-X with respect to intermediate portion 70 translations.
The head end 67 of first push rod 62 is resisted against below the flange 10 of handle 4, and is placed between its rest position shown in Figure 7 and its depressed position shown in Figure 8 by known in the prior art method.
The foot 69 of push rod 62 is accommodated in the bottom 66 of cavity 63, with at least one first receiver of control remote controllers outside.
According to an essential characteristics of the present invention, the head end 67 of first push rod 62 also is movable to extended position shown in Figure 9, and this extended position is at the opposite side of rest position to the direction of depressed position.
For this reason, remote controllers according to the present invention have first elastic recovery device 74, and this first elastic recovery device is made up of bottom that axially is contained in housing 72 and the spring 74 that forms between the closed end 68 of lid of head end 67.
First elastic recovery device 74 is shifted the head end 67 of first push rod 62 onto its extended position, thereby makes the head end 67 of push rod 62 carry out its intrinsic moving upward.In the process that this moves upward, handle 4 pivoted are breaking away from and the engaging of the head end 67 of push rod 62, thereby head end 67 moves upward, and enters its extended position to follow flange 10 under the effect of first elastic recovery device 74.
Like this, in the process that push rod 62 moves around in cavity 63, top stopper 75 will be shown in Fig. 7 and 9 during not in depressed position like that against convex shoulder 64 when push rod, and bottom stopper 76 will be against the bottom 66 of this cavity during in depressed position as shown in Figure 8 when push rod.
Like this, convex shoulder 64 just defines the rest position of push rod 62.
In addition, according to another essential characteristics of the present invention, remote controllers 1 have second elastic recovery device 77, and this second elastic recovery device is accommodated in the cavity 63, so that this first push rod 62 is returned to its rest position shown in Figure 7 from its depressed position shown in Figure 8.
Preferably, second elastic recovery device 77 is included near the top stopper 75, by a collar 78 of intermediate portion 70 supportings, and this collar is towards the bottom 66 of cavity 63.Second elastic recovery device 77 also comprises one second pressure spring 79, and this spring is inserted between the bottom 66 of the collar 78 and cavity 63.The slightly larger in diameter of pressure spring 79 is in intermediate portion 70, thereby can be pulled on this part, arrives the collar 78 places up to it.
With the same among first embodiment, in order to control the described first outside receiver, remote controllers 1 comprise that also monitoring device 17 is to monitor first push rod 62 occupied any position between its extended position and depressed position.
Like this, act at trend flange 10 that push rod 62 is pressed down between the effect of effect on the head end 67 and first pressure spring and second pressure spring 74 and 79, push rod 62 is equilibrated at its rest position.Against convex shoulder 64, and head end 67 is resisted against the closed end of the housing 72 of intermediate portion 70 vertically under the effect of handle 4 in this rest position upper top stopper 75.First spring 74 is compressed.
When first push rod 62 was in its compression position shown in Figure 8, the flange 10 of handle 4 pushed away the head end of push rod 62 downwards, thereby made intermediate portion 70 compression second pressure spring 79, up to this intermediate portion 70 downwardly against in the bottom 66 of cavity 63.
On the contrary, the head end 67 of this push rod breaks away from and the engaging of the flange 10 of handle 4 when the head end of push rod 62 is in its extended position shown in Figure 9, thereby intermediate portion 70 makes progress against convex shoulder 64 under the effect of second pressure spring 79.Equally, first pressure spring 79 unclamps.When the head end 67 of push rod when its rest position moves on to its extended position, head end 67 is resisted against the closed end of the housing 72 of intermediate portion 70 no longer vertically.
According to the inclination that gives handle 4, the head end 67 of push rod 62 can occupy any position between its depressed position and its extended position.
The foot 69 of push rod 62 stretches out outside the bottom 66 of cavity 63, thereby passes through this bottom in its projection and the moving back and forth of depressed position.
As a preferable situation again be: the same with among first embodiment, monitoring device 17 is not for to have the type of Mechanical Contact and to comprise a for example magnet 40, foot with push rod 62 moves as an integral body this magnet by the foot inside that is installed in push rod 62, and a Hall effect transducer 41 is installed in the main body 2 of remote controllers 1, in the face of magnet 40 moving between the depressed position of first push rod 62 and extended position.More particularly, Hall effect transducer 41 is installed in the main body 2, stretches out outside the bottom 66 of cavity 63.Like this, this sensor 41 can be encapsulated in a kind of material such as resin with its sealing.
In order to come balance handle 4, one second push rod 80 is installed in the main body 2 of remote controllers 1 with balance handle 4 in the mode that is similar to first embodiment.Owing to can't transmit control signal to receiver, this second push rod 80 is a passive push rod.It is installed in the cavity 82 that is formed in the main body 2, and this cavity is in a side relative with first cavity 63 on the axis of handle 4.
The axis of cavity 82 thorny handles and first cavity, 63 symmetries, it comprises the convex shoulder 86 with convex shoulder 64 symmetries of first cavity.The bottom of this cavity does not resemble and connects first cavity 63.
This part 84 is against the bottom of second cavity 82 and have a collar 85, and this collar is against the convex shoulder 86 of cavity 82.This cavity 82 parallel to the axis X-X, between the height at the rest position place that the convex shoulder 64 by the height at 66 places, bottom of cavity 63 and first cavity 63 limits, extend.
In addition, second push rod 80 is promoted by one the 3rd pressure spring 74, this pressure spring is inserted between the bottom of the collar 85 and cavity, thus this second push rod 80 of resiliency urged, and make operator must on handle 4, apply identical power to compress first push rod 62 or second push rod 80.
Compare with first embodiment, the quantity of element has reduced, thereby makes cost and technical break down dangerous minimum.
By using and the first and second push rod components identical, simplified according to the structure of second embodiment's remote controller assembly.
In addition, to compare with first embodiment be to have shortened to the travel distance of first pressure spring.
According to the 3rd embodiment shown in Figure 10 to 12, except second push rod 87 that comprises a head end 88 and a part 89 equally, all elements are identical with second embodiment.Yet head end 88 and part 89 are not fastened to each other, and a pressure spring 90 is accommodated between head end 88 and the part 89 in the mode that is similar to first push rod.In the case, the head end 88 of second push rod 87 is followed the flange 10 of handle 4.
This layout has improved the symmetry properties of assembly, makes mistakes when avoiding assembling, guarantee in addition in the handle a coupling piece can press down and extended position between the symmetry.
Certainly, the present invention is not limited to above-mentioned example, and can carry out multiple modification and can not deviate from scope of the present invention it.
Claims (19)
1. remote controllers (1) that are used for heavy construction machinery comprising:
One main body (2), this main body comprise at least one cavity (5,63), and this cavity is extending between the opening end (6,65) of an end face (7) upper shed of main body (2) and the bottom (8,66) at the place, opposite end of opening end at least;
At least one first push rod (3,62), this first push rod moves between a head end (12,67) and a foot (13,69), be installed in described at least one cavity (5,63) of main body (2), to press down between the position in a rest position and vertically and move back and forth, and trend towards controlling at least one first receiver in the remote controllers outside; And
One handle (4), this handle comprises a lateral flange (10), when being in rest position, this handle extends along the axis (X-X) of described push rod, and this handle is installed into end face (7) pivoted that is in reverse to described main body (2) with respect to described main body (2), to control described first push rod (3, moving back and forth 62), flange (10) is just against described push rod (3,62) head end (12,67), and the axis (Y-Y) of handle (4) and push rod (3,62) press from both sides a variable acute angle between the axis (X-X)
It is characterized in that, the head end (12,67) of at least the first push rod (3,62) also can move to being positioned at the extended position of described rest position to a reverse side of depressed position, when described handle (4) pivoted, the head end of described first push rod (12,67) can move upward automatically to follow described flange;
First elastic recovery device (15,74) promotes the head end (12,67) of this push rod (3,62) to its extended position, thereby the head end (12,67) of at least the first push rod (3,62) can move upward automatically; And
These remote controllers (1) also comprise the head end that is used to monitor first push rod (3,62) its stretch out and depressed position between the monitoring device (17) of position occupied.
2. remote controllers as claimed in claim 1 (1) is characterized in that, described monitoring device (17) is not for there being the type of Mechanical Contact.
3. remote controllers as claimed in claim 2 (1) is characterized in that, described monitoring device (17) comprises a magnet (40) that moves as an integral body with the head end of push rod (3,62).
4. as any described remote controllers (1) in the claim 1 to 3, it is characterized in that, cavity (5) is stepped and comprise substantially one first convex shoulder (20) transverse to the movement direction of first push rod (3), and, described push rod (3) comprises an intermediate portion (22), this intermediate portion moves as an integral body with the head end (12) of push rod (3) and foot (13) and is positioned between its head end (12) and its foot (13), also limit a top stopper (23) and a bottom stopper (24), when push rod (3) during at extended position top stopper (23) against first convex shoulder (20), and when described push rod (3) during in depressed position bottom stopper (24) against the bottom (8) of cavity (5).
5. remote controllers as claimed in claim 4 (1) is characterized in that, first recovery device (15) is accommodated in the cavity (5).
6. remote controllers as claimed in claim 5 (1) is characterized in that, first recovery device (15) comprising: a collar (26), this collar are supported by intermediate portion (22) near top stopper (23); And one first pressure spring (27), this pressure spring are inserted between the bottom (8) of the collar (26) and cavity (5).
7. as the described remote controllers (1) in the claim 1 to 3, it is characterized in that cavity (63) comprises substantially the convex shoulder (64) transverse to first push rod (62) moving direction; Described push rod (62) comprises a head end (67) and a foot (69), they move together as an integral body and can be along the axis (X-X) of push rod (62) with respect to intermediate portion (70) translations, this intermediate portion is positioned between head end (67) and the foot (69) and limits a top stopper (75) and a bottom stopper (76), top stopper (75) is against convex shoulder (64) when the head end (67) of push rod (62) is between its rest position and its extended position, and when described push rod (62) during in depressed position bottom stopper (76) against the bottom (66) of cavity (63).
8. remote controllers as claimed in claim 7 (1) is characterized in that, first elastic recovery device (74) is accommodated between the intermediate portion (70) of the head end (67) of push rod and push rod (62).
9. remote controllers as claimed in claim 8 (1) is characterized in that, first elastic recovery device comprises one first pressure spring (74), and this spring is inserted between the intermediate portion (70) of the head end (67) of push rod and push rod (62).
10. remote controllers as claimed in claim 1 (1) is characterized in that, hold second elastic recovery device (30,77) in cavity (5,63), so that first push rod is got back to its rest position from its depressed position.
11. remote controllers as claimed in claim 10 (1), it is characterized in that, second recovery device (30) comprises that one is inserted in second pressure spring (32) and a peripheral projection (33) between the bottom (8) of this ring (31) and cavity (5) with the concentric ring (31), of first push rod (3), this peripheral projection and first push rod (3) move as an integral body and tend to against ring (31), this cavity (5) also comprises one second convex shoulder (35), when first push rod (3) encircles (31) against this second convex shoulder when being positioned at rest position.
12. remote controllers as claimed in claim 10 (1) is characterized in that, second recovery device (77) comprising: a collar (78), this collar are supported by intermediate portion (70) near top stopper (75); And one second pressure spring (79), this pressure spring are inserted between the bottom (66) of this collar (78) and cavity (62).
13. remote controllers as claimed in claim 1 (1), it is characterized in that, one second push rod (50,80,87) is installed in one second cavity (51,82) of main body (2), this second push rod (50,80,87) by one the 3rd pressure spring (60,86) resiliency urged so that must to be applied to the power that handle (4) goes up to press down first (3,62) and second (50,80,87) push rod be more or less constant.
14. remote controllers as claimed in claim 13 (1) is characterized in that, handle (4) when being positioned at rest position second cavity (82) and first cavity with respect to the axis symmetry of handle.
15. remote controllers as claimed in claim 13 (1), it is characterized in that, the head end (88) of at least the second push rod (87) can move by the extended position on the reverse side from described rest position to depressed position, and, elastic recovery device (90) promotes the head end (88) of push rod (87) to its extended position, thereby the head end (88) of second push rod (87) can be moved upward automatically.
16. remote controllers as claimed in claim 1 (1) is characterized in that, the foot (13,69) of first push rod (3,62) be installed into can be supported on by the bottom (8,66) of cavity (5,63) and with magnet (40) in.
17. remote controllers as claimed in claim 16 (1), it is characterized in that, one Hall effect transducer (41) is installed in the main body (2) of remote controllers (1), and towards magnet (40) in the depressed position of first push rod (3,62) and the motion between the extended position.
18. remote controllers as claimed in claim 13 (1) is characterized in that, with respect to the axis of handle (4), second push rod (50,80,87) is positioned at the opposite side of first push rod (3,62).
19. remote controllers as claimed in claim 17 (1) is characterized in that, Hall effect transducer (41) is encapsulated in the resin, thereby is positioned at a sealing station.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0308566 | 2003-07-11 | ||
| FR0308566A FR2857488A1 (en) | 2003-07-11 | 2003-07-11 | Remote control for public works vehicle, has plunger movable towards exit position opposed to pushed position along axial direction in body cavity, and detection unit detecting plunger position |
| FR0401894 | 2004-02-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1820147A CN1820147A (en) | 2006-08-16 |
| CN100419277C true CN100419277C (en) | 2008-09-17 |
Family
ID=33522989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800194726A Expired - Fee Related CN100419277C (en) | 2003-07-11 | 2004-06-24 | Remote controller for heavy construction machines with follower pushrod |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100419277C (en) |
| FR (1) | FR2857488A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2970350B1 (en) * | 2011-01-07 | 2013-11-01 | Bosch Rexroth Dsi Sas | PRESSURE REGULATION DEVICE WITH DETECTION OF THE NEUTRAL POSITION |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2359748A1 (en) * | 1973-11-30 | 1975-06-05 | Lamborghini Oleodinamica | Improvement of hydraulic fluid servo drives - has balancing pressure adjustable so that pressure variations allow no lever movement |
| US4566492A (en) * | 1983-02-15 | 1986-01-28 | Rexroth Sigma | Fluid distributing device, more especially for remote control |
| EP0567698A1 (en) * | 1992-04-29 | 1993-11-03 | Kayaba Industry Co., Ltd. | Input apparatus |
| WO1996030652A1 (en) * | 1995-03-30 | 1996-10-03 | David Brown Hydraulics Limited | A joystick arrangement |
| GB2340207A (en) * | 1998-07-28 | 2000-02-16 | Mannesmann Rexroth Sa | Fluid distributor device for a hydraulic remote-control system |
| FR2801350A1 (en) * | 1999-11-23 | 2001-05-25 | Mannesmann Rexroth Sa | Hydraulic control fluid distributor for building equipment has command driver with position detector actioned during unit displacement and prior fluid pressure activation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5010263A (en) * | 1989-02-21 | 1991-04-23 | Mitsubishi Denki Kabushiki Kaisha | Hall effect type sensing device |
-
2003
- 2003-07-11 FR FR0308566A patent/FR2857488A1/en active Pending
-
2004
- 2004-06-24 CN CNB2004800194726A patent/CN100419277C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2359748A1 (en) * | 1973-11-30 | 1975-06-05 | Lamborghini Oleodinamica | Improvement of hydraulic fluid servo drives - has balancing pressure adjustable so that pressure variations allow no lever movement |
| US4566492A (en) * | 1983-02-15 | 1986-01-28 | Rexroth Sigma | Fluid distributing device, more especially for remote control |
| EP0567698A1 (en) * | 1992-04-29 | 1993-11-03 | Kayaba Industry Co., Ltd. | Input apparatus |
| WO1996030652A1 (en) * | 1995-03-30 | 1996-10-03 | David Brown Hydraulics Limited | A joystick arrangement |
| GB2340207A (en) * | 1998-07-28 | 2000-02-16 | Mannesmann Rexroth Sa | Fluid distributor device for a hydraulic remote-control system |
| FR2801350A1 (en) * | 1999-11-23 | 2001-05-25 | Mannesmann Rexroth Sa | Hydraulic control fluid distributor for building equipment has command driver with position detector actioned during unit displacement and prior fluid pressure activation |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2857488A1 (en) | 2005-01-14 |
| CN1820147A (en) | 2006-08-16 |
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