CN102310847A - Two sets of independent brake operating mechanisms of brake system unit of tractor - Google Patents

Two sets of independent brake operating mechanisms of brake system unit of tractor Download PDF

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Publication number
CN102310847A
CN102310847A CN201110160525A CN201110160525A CN102310847A CN 102310847 A CN102310847 A CN 102310847A CN 201110160525 A CN201110160525 A CN 201110160525A CN 201110160525 A CN201110160525 A CN 201110160525A CN 102310847 A CN102310847 A CN 102310847A
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China
Prior art keywords
brake
cam
transition
braking
pedal
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Granted
Application number
CN201110160525A
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Chinese (zh)
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CN102310847B (en
Inventor
仲红雨
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JIANGSU QINGTUO AGRICUTURAL EQUIPMENT CO Ltd
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JIANGSU QINGTUO AGRICUTURAL EQUIPMENT CO Ltd
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Priority to CN 201110160525 priority Critical patent/CN102310847B/en
Publication of CN102310847A publication Critical patent/CN102310847A/en
Application granted granted Critical
Publication of CN102310847B publication Critical patent/CN102310847B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses two sets of independent brake operating mechanisms of a brake system unit of a tractor. Left and right brake pedal fasteners (22, 23) are arranged on a pedal shaft (19); a brake shaft (9) is fixed on a brake shaft bracket welding piece (8); a right brake cam (3), a transition middle right cam (4), a manual brake right cam (5), a left brake cam (15), a transition middle left cam (12) and a manual brake left cam (11) are arranged at the right side and left side of the brake shaft (9); the right and left brake cams (3, 15) are connected with right and left brake upper pull rods (1, 16); the transition middle right and left cams (4, 12) are connected with right and left brake pull assemblies (6, 14); the manual brake right cam (5) is connected with a manual brake pull rod assembly (7); and the manual brake left cam (11) and the manual brake right cam (5) are connected into a whole. The independent brake operating mechanisms are simple in structure, low in manufacturing cost, convenient in operation and stable in work.

Description

Two of a brake system unit of trac. overlaps independently brake operation mechanism
Technical field
The present invention relates to the brake operation mechanism of trac., be specifically related to two of a brake system unit of trac. and overlap independently brake operation mechanism.
Background technology
As everyone knows, the trac. brake system is used for slowing down under steam, sudden stop, comprises Parking on the slope in the original place.Brake system is an important system of guaranteeing the trac. safety traffic, and it must guarantee: 1, good brake efficiency; 2, good braking direction is stable; 3, manipulation is light, and actuating force and pedal stroke should be not excessive; 4, reliable operation; 5, braking procedure should be smooth-going, and braking force should move down steadily with pedal.
The brake system of compact tractor and part medium tractor is the interlock steering unit at present, and the realization of promptly staying the braking of (stopping) car must rely on the manipulation of service brake just to work.
Summary of the invention
The objective of the invention is to: provide two of a brake system unit of trac. to overlap independently brake operation mechanism; Has only a brake system unit; But service brake and to stay the braking of (stopping) car be two separate cover brake operation mechanisms; It is independent mutually to stay braking of (stopping) car and service brake, is independent of each other.
The present invention adopts following technical solution: through the pedal rocking arm left brake pedal component and right brake pedal component are installed on the pedal shaft of brake system; Connect brake operating mechanism through support sleeve on the pedal shaft; Described brake operation mechanism comprises brake axle, brake axle support soldering member, and brake axle is fixed on the brake axle support soldering member, it is characterized in that: on the brake axle right side in the middle of back-up ring is installed right brake shoe expander, transition right cam, hand braking right cam; Through spacer left brake shoe expander, the middle left cam of transition, hand braking left cam are installed in the brake axle left side; Right cam is fixed on the brake axle through resilient pin in the middle of the transition, and the middle left cam of transition triggers fixing through extension spring, connects right braking top rod on the right brake shoe expander; Connect right drg rod assembly in the middle of the transition on the right cam; Connection hand lever connection assembly on the hand braking right cam connects left side braking top rod on the left brake shoe expander, connect left drg rod assembly in the middle of the transition on the left cam; Hand braking left cam and hand braking right cam are connected to an integral body, and left cam is braked top rod through the right side respectively in the middle of right cam, the transition in the middle of the transition, left drg top rod connects the pedal rocking arm.
Wherein, right drg rod assembly connects the pedal rocking arm through right brake retracting spring.
Wherein, left drg rod assembly connects the pedal rocking arm through left brake retracting spring.
When right brake pedal component is stepped on following time; Right braking top rod drives right brake shoe expander; Right side brake shoe expander drives the middle right cam rotation of transition again when rotating, right cam rotation is then rotated through right drg rod assembly drive drg in the middle of the transition, thereby right side braking is had an effect; When driving the rotation of parking brake lever assembly; The parking brake lever assembly drives hand braking right cam and hand braking left cam rotation; Hand braking right cam and hand braking left cam drive middle right cam of transition and the middle left cam rotation of transition again respectively; Drive drg through right drg rod assembly and rotate, thus hand braking having an effect; When left brake pedal component is stepped on following time; Left side braking top rod drives left brake shoe expander; Left side brake shoe expander drives the middle left cam rotation of transition again when rotating, the middle left cam rotation of transition then drives drg through left drg rod assembly and rotates, thereby left the braking had an effect; When stepping on down simultaneously left brake pedal component, right brake pedal component, then about braking illustratedly work simultaneously by above-mentioned.
The present invention has the following advantages: 1, simple in structure; Cheap; Working stability; Mutual action between transition intermediate cam, hand braking cam and the left and right sides brake shoe expander of installing through the brake axle left and right sides, service brake and to stay the braking of (stopping) car but be two separate cover brake operation mechanisms in a brake system unit; 2, play mutual action and when rotating an angle, guaranteed that service brake is not influenced by it when transition intermediate cam and hand braking cam, also realized staying the realization of (stopping) car braking simultaneously; When transition intermediate cam and left and right brake shoe expander play mutual action and when rotating an angle, guaranteed to stay the braking of (stopping) car not influenced by it, also realized the realization of service brake simultaneously; In the middle of the transition in the middle of right cam and the transition left cam in course of action, do not disturb mutually, when service brake was worked, braking during standstill is action not, and braking during standstill is when working, service brake is not moved, job failure is few.
Description of drawings
Fig. 1 is a brake axle left and right sides part scheme drawing.
Fig. 2 is the three-dimensional portion scheme drawing of cam.
Fig. 3 is a pedal shaft left and right sides part scheme drawing.
Among the figure: 1 right braking top rod, 2 back-up rings, 3 right brake shoe expanders, right cam in the middle of 4 transition, 5 hand braking right cams; 6 right drg rod assemblies, 7 parking brake lever assemblies, 8 brake axle support soldering members, 9 brake axles, 10 spacers; Left cam in the middle of the 11 hand braking left cams, 12 transition, 13 extension springs, 14 left drg rod assemblies, 15 left brake shoe expanders; 16 left side braking top rods, 17 resilient pins, 18 support sleeves, 19 pedal shafts, 20 right brake retracting springs; 21 left brake retracting springs, 22 left brake pedal components, 23 right brake pedal components, 24 pedal rocking arms.
The specific embodiment
1,2,3 couples of the present invention are described further below in conjunction with accompanying drawing.
As shown in the figure; Through pedal rocking arm 24 left brake pedal component 22 and right brake pedal component 23 are installed on the pedal shaft 19 of brake system; Connect brake operating mechanism through support sleeve 18 on the pedal shaft 19; Described brake operation mechanism comprises brake axle 9, brake axle support soldering member 8, and brake axle 9 is fixed on the brake axle support soldering member 8, it is characterized in that: on brake axle 9 right sides in the middle of back-up ring is installed right brake shoe expander 3, transition right cam 4, hand braking right cam 5; In brake axle 9 left sides in the middle of spacer is installed left brake shoe expander 15, transition left cam 12, hand braking left cam 11; Right cam 4 is fixed on the brake axle 9 through resilient pin 17 in the middle of the transition, and the middle left cam 12 of transition triggers fixing through extension spring, connects right braking top rod 1 on the right brake shoe expander 3; Connect right drg rod assembly 6 in the middle of the transition on the right cam 4; Connection hand lever connection assembly 7 on the hand braking right cam 5 connects left side braking top rod 16 on the left brake shoe expander 15, connect left drg rod assembly 14 in the middle of the transition on the left cam 12; Hand braking left cam 11 is connected to an integral body with hand braking right cam 5, in the middle of the transition in the middle of right cam 4, the transition left cam 12 connect pedal rocking arms 24 through right braking top rod 1, left drg top rod 16 respectively.
Wherein, right drg rod assembly 6 connects pedal rocking arm 24 through right brake retracting spring 20.
Wherein, left drg rod assembly 14 connects pedal rocking arm 24 through left brake retracting spring 21.
When right brake pedal component 23 is stepped on following time; Right braking top rod 1 drives right brake shoe expander 3; Right brake shoe expander 3 drives the middle right cam 4 of transition again and rotates when rotating, right cam 4 rotates then and rotates through right drg rod assembly 6 drive drgs in the middle of the transition, thereby right braking is had an effect; When driving 7 rotations of parking brake lever assembly; Parking brake lever assembly 7 drives hand braking right cam 5 and rotates with hand braking left cam 11; Right cam 4 rotated with the middle left cam 12 of transition in the middle of hand braking right cam 5 drove transition again respectively with hand braking left cam 11; Drive drg through right drg rod assembly 6 and rotate, thus hand braking having an effect;
When left brake pedal component 22 is stepped on following time; Left side braking top rod 16 drives left brake shoe expander 15; Left cam 12 rotates left side brake shoe expander 15 drives transition again when rotating in the middle of; Left cam 12 rotates then and drives the drg rotation through left drg rod assembly 14 in the middle of the transition, thereby left side braking is had an effect; When stepping on down simultaneously left brake pedal component 22, right brake pedal component 23, then about braking illustratedly work simultaneously by above-mentioned.

Claims (3)

1. two of a brake system unit of trac. overlap independently brake operation mechanism; The pedal shaft of brake system (19) is gone up through pedal rocking arm (24) left brake pedal component (22) and right brake pedal component (23) is installed; Pedal shaft (19) is gone up through support sleeve (18) and is connected brake operating mechanism; Described brake operation mechanism comprises brake axle (9), brake axle support soldering member (8); Brake axle (9) is fixed on the brake axle support soldering member (8); It is characterized in that: through back-up ring right brake shoe expander (3), the middle right cam (4) of transition, hand braking right cam (5) are installed on brake axle (9) right side; Through spacer left brake shoe expander (15), the middle left cam (12) of transition, hand braking left cam (11) are installed in brake axle (9) left side; Right cam (4) is fixed on the brake axle (9) through resilient pin (17) in the middle of the transition, and the middle left cam of transition (12) triggers fixing through extension spring, and right brake shoe expander (3) is gone up and connected right braking top rod (1); Right cam (4) is gone up and is connected right drg rod assembly (6) in the middle of the transition; Hand braking right cam (5) is gone up connection hand lever connection assembly (7), and left brake shoe expander (15) is gone up and connected left side braking top rod (16), and left cam (12) is gone up and connected left drg rod assembly (14) in the middle of the transition; Hand braking left cam (11) and hand braking right cam (5) are connected to an integral body, and left cam (12) is braked top rod (1) through the right side respectively in the middle of right cam (4), the transition in the middle of the transition, left drg top rod (16) connects pedal rocking arm (24).
2. two of a brake system unit of trac. according to claim 1 overlaps independently brake operation mechanism, it is characterized in that: wherein, right drg rod assembly (6) connects pedal rocking arm (24) through right brake retracting spring (20).
3. two of a brake system unit of trac. according to claim 1 overlaps independently brake operation mechanism, it is characterized in that: wherein, left drg rod assembly (14) connects pedal rocking arm (24) through left brake retracting spring (21).
CN 201110160525 2011-06-15 2011-06-15 Two sets of independent brake operating mechanisms of brake system unit of tractor Expired - Fee Related CN102310847B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110160525 CN102310847B (en) 2011-06-15 2011-06-15 Two sets of independent brake operating mechanisms of brake system unit of tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110160525 CN102310847B (en) 2011-06-15 2011-06-15 Two sets of independent brake operating mechanisms of brake system unit of tractor

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CN102310847A true CN102310847A (en) 2012-01-11
CN102310847B CN102310847B (en) 2013-05-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103612623A (en) * 2013-11-26 2014-03-05 常州东风农机集团有限公司 Hand braking control mechanism of roller tractor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6485860A (en) * 1987-09-28 1989-03-30 Iseki Agricult Mach Brake device for vehicle
CN2537610Y (en) * 2002-04-08 2003-02-26 黑龙江凯马富拖机械制造有限公司 One side brake
CN201217434Y (en) * 2008-04-15 2009-04-08 广西柳工机械股份有限公司 Brake device of mechanical loader braking system
CN201553136U (en) * 2009-10-21 2010-08-18 中国一拖集团有限公司 Wheeled tractor secondary brake control device
US7798292B2 (en) * 2006-03-09 2010-09-21 Deere & Company Engine noise baffle for tractor brake shaft
CN202115494U (en) * 2011-06-15 2012-01-18 江苏清拖农业装备有限公司 Two independent brake control mechanisms of brake system unit of tractor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6485860A (en) * 1987-09-28 1989-03-30 Iseki Agricult Mach Brake device for vehicle
CN2537610Y (en) * 2002-04-08 2003-02-26 黑龙江凯马富拖机械制造有限公司 One side brake
US7798292B2 (en) * 2006-03-09 2010-09-21 Deere & Company Engine noise baffle for tractor brake shaft
CN201217434Y (en) * 2008-04-15 2009-04-08 广西柳工机械股份有限公司 Brake device of mechanical loader braking system
CN201553136U (en) * 2009-10-21 2010-08-18 中国一拖集团有限公司 Wheeled tractor secondary brake control device
CN202115494U (en) * 2011-06-15 2012-01-18 江苏清拖农业装备有限公司 Two independent brake control mechanisms of brake system unit of tractor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103612623A (en) * 2013-11-26 2014-03-05 常州东风农机集团有限公司 Hand braking control mechanism of roller tractor
CN103612623B (en) * 2013-11-26 2015-12-30 常州东风农机集团有限公司 Wheel-tire tractor hand brake operation mechanism

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