CN102518703A

CN102518703A - Master cylinder assembly structure of clutch

Info

Publication number: CN102518703A
Application number: CN2011104314860A
Authority: CN
Inventors: 周建
Original assignee: WUHU BOGE AUTOMOBILE PARTS CO Ltd
Current assignee: WUHU BOGE AUTOMOBILE PARTS CO Ltd
Priority date: 2011-12-21
Filing date: 2011-12-21
Publication date: 2012-06-27

Abstract

The invention discloses a master cylinder assembly structure of a clutch, which comprises a master cylinder and a push rod. The left end of the master cylinder is provided with a cavity opening, a dustproof cover is arranged at the cavity opening, an oil inlet is arranged on the top of the master cylinder, an oil cup is mounted on the oil inlet, a piston assembly is mounted in an inner cavity of the master cylinder slidably, and an arc concave surface is formed at the left end of the piston assembly. The right end of the push rod extends into the master cylinder from the cavity opening at the left end of the master cylinder, the right end of the push rod is connected with a push seat, and a spherical surface is formed on the right end seat surface of the push seat. The master cylinder assembly structure is simple and easy to realize, the service life of the piston assembly can be prolonged effectively, and the performance of the master cylinder of the clutch can be improved.

Description

A kind of clutch master cylinder assembly structure

Technical field

The present invention relates to clutch field, be specially a kind of clutch master cylinder assembly structure.

Background technique

Clutch is installed between motor and the speed changer, be in the automotive transmission directly and total member of interrelating of motor.Usually clutch is installed together with the engine crankshaft flywheel set, is the parts of cut-out and transferring power between motor and the automotive transmission.Master cylinder is a vitals of clutch; The structural behaviour of master cylinder directly has influence on the working efficiency of break, in the existing technology clutch master cylinder, and the piston when push rod resets in the frequent high velocity impact master cylinder of meeting; Piston is fragile, causes the clutch master cylinder piston life to reduce.

Summary of the invention

The object of the invention provides a kind of clutch master cylinder assembly structure, to solve piston short problem in working life in the existing technology clutch master cylinder.

In order to achieve the above object, the technological scheme that the present invention adopted is:

A kind of clutch master cylinder assembly structure comprises the cylinder body with inner chamber, and said cylinder body left end has accent; The accent place is covered with dust-proof cover, it is characterized in that: said cylinder body top is provided with the filler opening that is communicated with inner chamber of cylinder block, and lubricating cup is installed on the filler opening; Be slidingly fitted with piston assembly in the inner chamber of cylinder block, the left end of said piston assembly forms the concave surface of arc, also includes push rod; Said push rod left end is connected with the push rod fork; The push rod right-hand member passes the dust-proof cover of cylinder body left end and stretches into the cylinder body from cylinder body left end accent, and the push rod right-hand member is connected with and pushes away seat, and a said right-hand member seat surface that pushes away forms the sphere that cooperates with piston assembly left end arc-shaped concave.

Described a kind of clutch master cylinder assembly structure is characterized in that: be provided with annular table near left position on the said cylinder body, symmetrical position is separately installed with the stud bolt with the cylinder body central axes on the annular table.

Described a kind of clutch master cylinder assembly structure is characterized in that: be provided with the push rod pad in the said cylinder body left end accent, said push rod pad has central through bore, and said push rod passes also and can push rod pad central through bore, slide from push rod pad central through bore.

The present invention is simple in structure, is easy to realize that the piston assembly left end in the cylinder body forms arc-shaped concave; Pushing away that the push rod right-hand member connects forms sphere on the seat; The arc-shaped concave of piston assembly cooperates with the sphere that pushes away seat during use, when push rod resets, can give the space of a buffering of push rod rod end, avoids push rod when high speed, to collide piston assembly; And then can improve working life of piston assembly effectively, and improve the performance of clutch master cylinder.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Embodiment

As shown in Figure 1.A kind of clutch master cylinder assembly structure comprises the cylinder body 1 with inner chamber, and cylinder body 1 left end has accent; The accent place is covered with dust-proof cover 2, and cylinder body 1 top is provided with the filler opening that is communicated with cylinder body 1 inner chamber, and lubricating cup 3 is installed on the filler opening; Be slidingly fitted with piston assembly 4 in cylinder body 1 inner chamber, the left end of piston assembly 4 forms the concave surface of arc, also includes push rod 5; Push rod 5 left ends are connected with push rod fork 6; Push rod 5 right-hand members pass the dust-proof cover 2 of cylinder body 1 left end and stretch into the cylinder body 1 from cylinder body 1 left end accent, and push rod 5 right-hand members be connected with push away the seat 7, push away the seat 7 right-hand member seat surfaces form the sphere 8 that cooperates with piston assembly 4 left end arc-shaped concaves.

Be provided with annular table 9 near left position on the cylinder body 1, symmetrical position is separately installed with the stud bolt 10 with cylinder body 1 central axes on the annular table 9.Be provided with push rod pad 11 in the cylinder body 1 left end accent, push rod pad 11 has central through bore, and push rod 5 passes also and can push rod pad 11 central through bores, slide from push rod pad 11 central through bores.

Claims

1. a clutch master cylinder assembly structure comprises the cylinder body with inner chamber, and said cylinder body left end has accent; The accent place is covered with dust-proof cover, it is characterized in that: said cylinder body top is provided with the filler opening that is communicated with inner chamber of cylinder block, and lubricating cup is installed on the filler opening; Be slidingly fitted with piston assembly in the inner chamber of cylinder block, the left end of said piston assembly forms the concave surface of arc, also includes push rod; Said push rod left end is connected with the push rod fork; The push rod right-hand member passes the dust-proof cover of cylinder body left end and stretches into the cylinder body from cylinder body left end accent, and the push rod right-hand member is connected with and pushes away seat, and a said right-hand member seat surface that pushes away forms the sphere that cooperates with piston assembly left end arc-shaped concave.

2. a kind of clutch master cylinder assembly structure according to claim 1 is characterized in that: be provided with annular table near left position on the said cylinder body, symmetrical position is separately installed with the stud bolt with the cylinder body central axes on the annular table.

3. a kind of clutch master cylinder assembly structure according to claim 1; It is characterized in that: be provided with the push rod pad in the said cylinder body left end accent; Said push rod pad has central through bore, and said push rod passes also and can push rod pad central through bore, slide from push rod pad central through bore.