CN104632947A - Braking device for lifting table movable shaft - Google Patents
Braking device for lifting table movable shaft Download PDFInfo
- Publication number
- CN104632947A CN104632947A CN201510076491.2A CN201510076491A CN104632947A CN 104632947 A CN104632947 A CN 104632947A CN 201510076491 A CN201510076491 A CN 201510076491A CN 104632947 A CN104632947 A CN 104632947A
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- CN
- China
- Prior art keywords
- locking member
- braking device
- housing
- movable axis
- described locking
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Abstract
The invention provides a braking device for a lifting table movable shaft. The braking device comprises a shell, at least one locking component, an elastic part and an adjusting device, each locking component comprises an axial channel, the axial channels are mounted on the movable shaft in a penetrating manner, the locking components are partly or completely arranged in the shell, and a first position and a second position are limited relative to the shell. When the locking components are positioned at the first position, the movable shaft is fixed in the axial channel. When the locking components are positioned at the second position, the movable shaft can move in the axial channel, the elastic part is partly or completely arranged in the shell and acted to the locking components, so that the locking components are kept at the first position, and the adjusting device directly or indirectly acts to the elastic part to change the action force of the elastic part on the locking components.
Description
Technical field
The present invention relates to desk, particularly relate to a kind of braking device for lifting table movable axis.
Background technique
Now, the feature that lifting table can carry out height of table top adjustment according to actual needs with it is employed further widely in live and work, as lifting computer desk, lifting dais, self-powered platform etc.Wherein mainly be divided into electric lifting/lowering and hand-operated lifting by the control mode of lifting, electric elevatable table controls and operation relative ease, lifting and braking stopping can be started preferably by Electric Machine Control, but electric elevatable table is expensive comparatively speaking, weight is also comparatively large, needs to expend electric power simultaneously, although hand-operated lifting table is not so good as electric elevatable table in manipulation for this reason, but in general user not requires very high, so hand-operated lifting table is still widely used in each occasion for manipulation precision.
The lifting implementation of hand-operated lifting table is also more, main as adopted gas bar, screw mandrel, spring traction etc., equally also has corresponding mode of braking to realize the lifting location of lifting table.Movable axie or steel wire being set in many hand-operated lifting tables, as the axle that drawn by spring or steel wire, driving desk to be elevated by spring force, when needing the height keeping lifting table, only the axle be connected with spring or steel wire need be braked.Visible, the quality of braking device directly has influence on the lifting effect of lifting table.
Summary of the invention
The invention provides a kind of novel braking device for lifting table movable axis for this reason, comprising:
Housing;
At least one locking member, described locking member comprises the axial passage installing described movable axis, described locking member is partly or entirely arranged in described housing, and define primary importance and the second place relative to described housing, when described locking member is in described primary importance, described movable axis is fixed in described axial passage, and when described locking member is in the described second place, described movable axis can be movable in described axial passage;
Elastic component, described elastic component is partly or entirely arranged in described housing, and acts on described locking member and make it remain on described primary importance;
Controlling device, described controlling device directly or indirectly acts on described elastic component, for changing the active force of described elastic component to described locking member.
Further, when described locking member is in described primary importance, under the effect of described elastic component, the inwall of described housing provides the active force of the radial direction along described axial passage to described locking member, makes described locking member form clamping force to described movable axis.
Further, reduce described elastic component by controlling device and described locking member remained on the active force of described primary importance or described locking member is moved to the described second place, thus reduce or eliminate the clamping force of described locking member to described movable axis.
Further, described locking member comprises wedge structure, and described housing comprises the wedge cavity matched with described wedge structure.
Further, described locking member comprises multiple movable part, and when described locking member is in described primary importance, the inwall of described housing directly acts on described movable part.
Further, when described locking member is coated with described movable axis and is in described primary importance, described movable part directly acts on described movable axis, to provide clamping force to it.
Further, described movable part is spherical.
Further, the described locking member arranged in opposite directions for a pair is comprised.
Further, described elastic component is helical spring, and described helical spring to install around on described locking member and is limited in described housing.
Further, described controlling device comprises fixing frame, driving lever, actuator, described fixing frame fixed installation on the housing, described driving lever and described fixing frame pivotally connected, and described driving lever two ends connect described actuator and described locking member respectively, thus by driving described actuator to be switched between described primary importance and the described second place by described locking member.
Braking device of the present invention has the following advantages:
1, structure is simple, easy to operate.
2, wearout parts less and be convenient to change, save spare parts cost.
3, the clamping force of braking device can be adjusted as required, and adjustment is simple.
What 4, both can be used for movable axis moves axially braking, also may be used for the rolling brake of movable axis.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment of braking device of the present invention;
Fig. 2 is the element exploded view of braking device in Fig. 1;
Fig. 3 be in Fig. 1 braking device along A-A to sectional view and braking device is in locking state;
Fig. 4 be in Fig. 1 braking device along A-A to sectional view and braking device is in releasing orientation.
Embodiment
Fig. 1 is the structural representation of a preferred embodiment of braking device of the present invention, and Fig. 2 is the element exploded view of braking device in Fig. 1.Wherein braking device comprises end cap 1, spring 2, mandrel 3, roller 4, shift fork 5, mounting bracket 6, braking string 7, housing 8, pin 9 and extended stabilizer 10, and shows the movable axis 11 be installed in braking device.
The braking device of the present embodiment adopts a pair mandrel 3, is oppositely arranged, and is configured with corresponding end cap 1, spring 2 and roller 4 to each mandrel 3 respectively.Spring 2 is installed on mandrel 3, and movable axis 11 is each passed through end cap 1, mandrel 3 and housing 8, and can move axially wherein or rotate, and namely all have can for hole or the axial passage installing movable axis 11 for end cap 1, mandrel 3 and housing 8.Mandrel 3 part is arranged in housing 8, and spring 2 and mandrel 3 is remained on the inside of housing 8 by end cap 1 with being threaded of housing 8, and roller 4 is arranged in the hole on mandrel 3.When spring 2 is not by External Force Acting, spring 2 acts on the spring force on mandrel 3, is pushed to by mandrel 3 in housing 8, and namely a pair mandrel 3 is by the spring-force driven dual of spring 2, close to each other.By pulling the part of mandrel 3 outside housing 8, the spring force of spring 2 can be overcome and part mandrel 3 is pulled out housing 8.
Mounting bracket 6 is fixedly mounted on housing 8, and as adopted the similar Placements such as welding, both also can make in integration.Mounting bracket 6 comprises hole 12, thus passing hole 12 can be fixed to the mounting point of needs.Mounting bracket 6 also comprises a pair extended stabilizer 10, each extended stabilizer 10 is pivotally connected by pin 9 with a shift fork 5 respectively, one end of a pair shift fork 5 is separately positioned on the recess that a pair mandrel 3 is positioned at housing 8 outside, and be provided with braking string 7 at the other end of shift fork 5, thus when pulling braking string 7, by the lever that shift fork 5, pin 9 are formed, the spring-force driven dual of spring 2 can be overcome, part mandrel 3 is pulled out from housing 8.
Below by way of Fig. 3 and Fig. 4, the working method of the braking device of this enforcement is described further.
Fig. 3 and Fig. 4 be in Fig. 1 along A-A to sectional view, the braking device respectively illustrating this enforcement is in locking state and releasing orientation.
As shown in Figure 3, one end that mandrel 3 enters housing 8 has wedge structure, and enclosure interior has the wedge space of matching with the wedge structure of mandrel 3, and both match and define the maximum depth that mandrel 3 enters housing 8.Simultaneously from Fig. 3 and Fig. 4, enter in the process of housing 8 at mandrel 3, be arranged on the wedge structure of the roller 4 in the hole of mandrel 3 prior to mandrel 3 and the contact internal walls of housing 8, and roller 4 also contacts with movable axis 11 simultaneously, thus under the spring-force driven dual of spring 2, mandrel 3 and interior roller 4 thereof are maintained at a fixed position, the inwall of housing 8 is applied with along movable axis 11 radial direction to roller 4 and points to the component of movable axis 11, movable axis 11 is put on by roller 4 transmission, clamping force is defined to movable axis 11, reach the object that restraint axle 11 moves axially or rotates.Position mandrel 3 being entered maximum depth in housing 8 is defined as its locked position, and when mandrel 3 is in locked position, the braking device of the present embodiment is in locking state, and movable axis 11 is limited activity.Also can expect easily from above working principle, by selecting the spring of different elasticity coefficient, can different clamping forces be obtained, corresponding selection can be carried out according to actual needs.
As shown in Figure 4, when pulling braking string 7, one end that a pair shift fork 5 is positioned at braking string 7 is close to each other, by the lever system that shift fork 5 and pin 9 are formed, shift fork 5 is arranged on the other end of mandrel 3 indent, and part mandrel 3 is pulled out housing 8 by the spring force of opposing spring 2, and now mandrel 3 have left locked position, the inwall of this process middle shell 8 provides clamping force hardly to roller 4, thus movable axis 11 can move axially or rotate.Other positions residing after mandrel 3 is left locked position are defined as its unlocked position, and when mandrel 3 is in unlocked position, the braking device of the present embodiment is in releasing orientation, and movable axis 11 is movable.
Visible by the description of the present embodiment, it is simple that braking device of the present invention has structure, easy to operate; Wearout parts (roller) less and be convenient to change, save spare parts cost; The advantages such as adjustment clamping force easy (being regulated by spring).And the roller that the present embodiment is arranged on-fixed or be limited in mandrel, it has certain activity space in the radial direction at movable axis, thus when the diameter of movable axis changes within the specific limits, braking device can be suitable for equally, widen the Applicable scope of product.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. for a braking device for movable axis, it is characterized in that, comprise
Housing;
At least one locking member, described locking member comprises the axial passage installing described movable axis, described locking member is partly or entirely arranged in described housing, and define primary importance and the second place relative to described housing, when described locking member is in described primary importance, described movable axis is fixed in described axial passage, and when described locking member is in the described second place, described movable axis can be movable in described axial passage;
Elastic component, described elastic component is partly or entirely arranged in described housing, and acts on described locking member and make it remain on described primary importance;
Controlling device, described controlling device directly or indirectly acts on described elastic component, for changing the active force of described elastic component to described locking member.
2. braking device as claimed in claim 1, it is characterized in that, when described locking member is in described primary importance, under the effect of described elastic component, the inwall of described housing provides the active force of the radial direction along described axial passage to described locking member, make described locking member form clamping force to described movable axis.
3. braking device as claimed in claim 2, it is characterized in that, reduce described elastic component by controlling device described locking member remained on the active force of described primary importance or described locking member is moved to the described second place, thus reduce or eliminate the clamping force of described locking member to described movable axis.
4. braking device as claimed in claim 1, it is characterized in that, described locking member comprises wedge structure, and described housing comprises the wedge cavity matched with described wedge structure.
5. braking device as claimed in claim 4, it is characterized in that, described locking member comprises multiple movable part, and when described locking member is in described primary importance, the inwall of described housing directly acts on described movable part.
6. braking device as claimed in claim 5, it is characterized in that, when described locking member is coated with described movable axis and is in described primary importance, described movable part directly acts on described movable axis, to provide clamping force to it.
7. braking device as claimed in claim 6, it is characterized in that, described movable part is spherical.
8. braking device as claimed in claim 1, is characterized in that, comprise the described locking member arranged in opposite directions for a pair.
9. braking device as claimed in claim 1, it is characterized in that, described elastic component is helical spring, and described helical spring to install around on described locking member and is limited in described housing.
10. braking device as claimed in claim 9, it is characterized in that, described controlling device comprises fixing frame, driving lever, actuator, described fixing frame fixed installation on the housing, described driving lever and described fixing frame pivotally connected, and described driving lever two ends connect described actuator and described locking member respectively, thus by driving described actuator to be switched between described primary importance and the described second place by described locking member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076491.2A CN104632947B (en) | 2015-02-12 | 2015-02-12 | A kind of brake apparatus of same table movable axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076491.2A CN104632947B (en) | 2015-02-12 | 2015-02-12 | A kind of brake apparatus of same table movable axis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104632947A true CN104632947A (en) | 2015-05-20 |
| CN104632947B CN104632947B (en) | 2017-12-08 |
Family
ID=53212040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510076491.2A Active CN104632947B (en) | 2015-02-12 | 2015-02-12 | A kind of brake apparatus of same table movable axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104632947B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505891A (en) * | 2018-11-08 | 2019-03-22 | 鲁班嫡系机器人（深圳）有限公司 | A kind of brake gear, moving parts and automation equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3871780A (en) * | 1972-11-03 | 1975-03-18 | Skillingaryds Mekaniska Ab | Device for locking two concentrically positioned and axially displaceable members |
| US4526334A (en) * | 1981-09-28 | 1985-07-02 | Martela Oy | Device for adjusting the height of desktop, chair or similar |
| US5944290A (en) * | 1996-07-17 | 1999-08-31 | Stabilus Gmbh | Rotationally secured column |
| CN203692845U (en) * | 2013-11-19 | 2014-07-09 | 吕凡臻 | Lifting device |
| CN104006031A (en) * | 2013-02-22 | 2014-08-27 | 苏斯帕有限公司 | Double acting spool-shaped fluid cylinder lock |
-
2015
- 2015-02-12 CN CN201510076491.2A patent/CN104632947B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3871780A (en) * | 1972-11-03 | 1975-03-18 | Skillingaryds Mekaniska Ab | Device for locking two concentrically positioned and axially displaceable members |
| US4526334A (en) * | 1981-09-28 | 1985-07-02 | Martela Oy | Device for adjusting the height of desktop, chair or similar |
| US5944290A (en) * | 1996-07-17 | 1999-08-31 | Stabilus Gmbh | Rotationally secured column |
| CN104006031A (en) * | 2013-02-22 | 2014-08-27 | 苏斯帕有限公司 | Double acting spool-shaped fluid cylinder lock |
| CN203692845U (en) * | 2013-11-19 | 2014-07-09 | 吕凡臻 | Lifting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505891A (en) * | 2018-11-08 | 2019-03-22 | 鲁班嫡系机器人（深圳）有限公司 | A kind of brake gear, moving parts and automation equipment |
| CN109505891B (en) * | 2018-11-08 | 2021-01-08 | 鲁班嫡系机器人（深圳）有限公司 | Brake equipment, motion subassembly and automation equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104632947B (en) | 2017-12-08 |
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