CN102338173A - Piston travel adjustment and protection device for brake wheel cylinder - Google Patents

Piston travel adjustment and protection device for brake wheel cylinder Download PDF

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Publication number
CN102338173A
CN102338173A CN2011102843249A CN201110284324A CN102338173A CN 102338173 A CN102338173 A CN 102338173A CN 2011102843249 A CN2011102843249 A CN 2011102843249A CN 201110284324 A CN201110284324 A CN 201110284324A CN 102338173 A CN102338173 A CN 102338173A
Authority
CN
China
Prior art keywords
piston
hole
cylinder body
radial
wheel cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011102843249A
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Chinese (zh)
Inventor
夏坤财
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Hengkun Auto Parts Co Ltd
Original Assignee
Wuhu Hengkun Auto Parts Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhu Hengkun Auto Parts Co Ltd filed Critical Wuhu Hengkun Auto Parts Co Ltd
Priority to CN2011102843249A priority Critical patent/CN102338173A/en
Publication of CN102338173A publication Critical patent/CN102338173A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a piston travel adjustment and protection device for a brake wheel cylinder. The piston travel adjustment and protection device comprises a cylinder body and a spring lock sheet, wherein a radial through hole is formed in the cylinder body; a left piston and a right piston are arranged in the radial through hole and are in sliding fit with the hole wall of the radial through hole; a spring is connected between the left piston and the right piston; dust covers are arranged on the cylinder body on two sides of the radial through hole; an oil nozzle which is communicated with the radial through hole is formed on the cylinder body; the outer side of the left piston or the right piston is provided with a screw hole, a bolt is screwed in the screw hole, and a joint is arranged on the end part of the bolt; and one end of the spring lock sheet is fixed to the outer wall of the cylinder body, and the other end of the spring lock sheet is pressed on the outer side of the left piston or the right piston. The piston travel adjustment and protection device has a compact structure; the joint is screwed to the outer sides of the pistons, and can be adjusted right and left according to requirements to meet the requirement when the joint is connected with external braking pieces with different sizes; meanwhile, the spring lock sheet is fixed to the outer wall of the cylinder body and applies lateral precompression force to the pistons to play a protection role in piston travel and prevent the safety accident of piston flyout due to overhigh oil pressure or air pressure of an inner cavity of the wheel cylinder.

Description

The piston stroke adjustment and the protective gear of wheel cylinder
Technical field
The present invention relates to the automotive brake field, be specifically related to a kind of piston stroke adjustment and protective gear of wheel cylinder.
Background technique
Wheel cylinder generally relies on pressurized air or oil to get into master cylinder, and promotion piston etc. overlap base apparatus and play braking action, are parts of automotive brake, are used to produce the power that hinders vehicle movement or movement tendency, i.e. braking force.
The piston of wheel cylinder inside is when being connected with external brake component, because the size of external brake component has length that weak point is arranged, and the adjustment space of piston in wheel cylinder is less, the difficulty that has caused piston joint to be connected with external brake component; In addition, in the course of the work,, will cause wheel cylinder inner piston moment to be pushed out, even fly out, not only cause loss, also can bring potential safety hazard if the oil pressure of wheel cylinder inner chamber or air pressure are excessive.
Summary of the invention
The piston stroke adjustment and the protective gear that the purpose of this invention is to provide a kind of wheel cylinder, the bolting joint in the piston outside, joint can carry out left and right adjustment on demand, and fixing spring locking plate on the outer wall of cylinder body comes piston stroke is protected simultaneously.
Technological scheme of the present invention is following:
A kind of piston stroke adjustment and protective gear of wheel cylinder; Include cylinder body, it is characterized in that: be provided with radial direction through hole in the said cylinder body, be provided with left and right piston in the described radial direction through hole; The hole wall of described left and right piston and radial direction through hole is slidingly matched; And be connected with spring between the left and right piston, be positioned on the cylinder body of said radial direction through hole both sides and be separately installed with dust-proof cover, described cylinder body is provided with oil nozzle or the valve that leads to radial direction through hole; The outside of described left piston or right piston is provided with screw and has screwed togather bolt, and the end of said bolt has joint; Comprise the spring locking plate, an end of said spring locking plate is fixed on the outer wall of cylinder body, and the other end of spring locking plate is pressed in the outside of left piston or right piston.
The piston stroke adjustment and the protective gear of described wheel cylinder, it is characterized in that: the inboard of said left and right piston is respectively equipped with leather cup.
Beneficial effect of the present invention:
Compact structure of the present invention, the bolting joint in the piston outside, joint can carry out left and right adjustment on demand, has guaranteed the needs when the external brake component with the different size size is connected; Simultaneously fixing spring locking plate on the outer wall of cylinder body can apply the precompression of side direction to piston, thereby the stroke of piston is played a protective role, and has avoided causing owing to the oil pressure of wheel cylinder inner chamber or air pressure are excessive the generation of the security incident that piston flies out.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Referring to Fig. 1, adjustment of a kind of piston stroke of wheel cylinder and protective gear include cylinder body 1; Be provided with radial direction through hole 8 in the cylinder body 1; Be provided with left and right piston 7,5 in the radial direction through hole 8, the hole wall of left and right piston 7,5 and radial direction through hole 8 is slidingly matched, and left and right piston 7, is connected with spring 3 between 5; Be positioned on the cylinder body 1 of radial direction through hole 8 both sides and be separately installed with dust-proof cover 5, cylinder body 1 is provided with the oil nozzle that leads to radial direction through hole 8; The outside of right piston 5 is provided with screw and has screwed togather bolt 6, and the end of bolt 6 has joint, and when the external brake component with the different size size was connected, bolt 6 can be adjusted on demand, thus the needs when having guaranteed to be connected with external brake component; Comprise spring locking plate 10, an end of spring locking plate 10 is fixed on through pan head screw 9 on the outer wall of cylinder body 1, and the other end of spring locking plate 10 is pressed in the outside of right piston 5, and right piston 5 mobile played the resilient protection effect.
Further, the inboard of left and right piston 7,5 is respectively equipped with leather cup 2.

Claims (2)

1. the piston stroke of a wheel cylinder is adjusted and protective gear; Include cylinder body, it is characterized in that: be provided with radial direction through hole in the said cylinder body, be provided with left and right piston in the described radial direction through hole; The hole wall of described left and right piston and radial direction through hole is slidingly matched; And be connected with spring between the left and right piston, be positioned on the cylinder body of said radial direction through hole both sides and be separately installed with dust-proof cover, described cylinder body is provided with oil nozzle or the valve that leads to radial direction through hole; The outside of described left piston or right piston is provided with screw and has screwed togather bolt, and the end of said bolt has joint; Comprise the spring locking plate, an end of said spring locking plate is fixed on the outer wall of cylinder body, and the other end of spring locking plate is pressed in the outside of left piston or right piston.
2. the piston stroke of wheel cylinder according to claim 1 is adjusted and protective gear, and it is characterized in that: the inboard of said left and right piston is respectively equipped with leather cup.
CN2011102843249A 2011-09-22 2011-09-22 Piston travel adjustment and protection device for brake wheel cylinder Pending CN102338173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011102843249A CN102338173A (en) 2011-09-22 2011-09-22 Piston travel adjustment and protection device for brake wheel cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011102843249A CN102338173A (en) 2011-09-22 2011-09-22 Piston travel adjustment and protection device for brake wheel cylinder

Publications (1)

Publication Number Publication Date
CN102338173A true CN102338173A (en) 2012-02-01

Family

ID=45514066

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011102843249A Pending CN102338173A (en) 2011-09-22 2011-09-22 Piston travel adjustment and protection device for brake wheel cylinder

Country Status (1)

Country Link
CN (1) CN102338173A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105276039A (en) * 2015-11-05 2016-01-27 常州南车铁马科技实业有限公司 Rail vehicle braking clamp
CN105276037A (en) * 2015-11-05 2016-01-27 常州南车铁马科技实业有限公司 Hydraulic braking clamp for rail transit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865168A (en) * 1987-07-28 1989-09-12 Lucas Industries Public Limited Company Vehicle disc brakes of the liquid cooled type
EP0641949B1 (en) * 1993-09-02 1997-05-28 PERROT BREMSEN GmbH Disc brake
CN2550223Y (en) * 2002-06-19 2003-05-14 臧福运 Single pipeline hydraulic brake main cylinder
CN201566605U (en) * 2009-11-13 2010-09-01 芜湖恒坤汽车部件有限公司 Brake wheel cylinder assembly
CN201568497U (en) * 2009-11-13 2010-09-01 芜湖恒坤汽车部件有限公司 Double-acting brake wheel cylinder assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865168A (en) * 1987-07-28 1989-09-12 Lucas Industries Public Limited Company Vehicle disc brakes of the liquid cooled type
EP0641949B1 (en) * 1993-09-02 1997-05-28 PERROT BREMSEN GmbH Disc brake
CN2550223Y (en) * 2002-06-19 2003-05-14 臧福运 Single pipeline hydraulic brake main cylinder
CN201566605U (en) * 2009-11-13 2010-09-01 芜湖恒坤汽车部件有限公司 Brake wheel cylinder assembly
CN201568497U (en) * 2009-11-13 2010-09-01 芜湖恒坤汽车部件有限公司 Double-acting brake wheel cylinder assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105276039A (en) * 2015-11-05 2016-01-27 常州南车铁马科技实业有限公司 Rail vehicle braking clamp
CN105276037A (en) * 2015-11-05 2016-01-27 常州南车铁马科技实业有限公司 Hydraulic braking clamp for rail transit
CN105276037B (en) * 2015-11-05 2017-08-11 常州中车铁马科技实业有限公司 Hydraulic braking clamp for track traffic

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120201