CN205331272U

CN205331272U - Clutch booster

Info

Publication number: CN205331272U
Application number: CN201620031810.8U
Authority: CN
Inventors: 傅树苗; 虞海峰
Original assignee: ZHEJIANG ZHONGDUN MACHINERY CO Ltd
Current assignee: ZHEJIANG ZHONGDUN MACHINERY CO Ltd
Priority date: 2016-01-13
Filing date: 2016-01-13
Publication date: 2016-06-22
Anticipated expiration: 2026-01-13

Abstract

The utility model discloses a clutch booster, its technical scheme main points are clutch booster, include along the pneumatic cylinder and the pneumatic cylinder of the connection of same axis, it has the piston to settle in the pneumatic cylinder, and one side of piston is connected with the piston rod, and the one end of piston rod is connected with the push rod, be formed with the cavity between push rod and the piston rod, it has the gasket that is used for conflicting between push rod and piston rod to settle in the cavity. The utility model discloses a clutch booster is easy to assemble and the transmission is accurate, is difficult to take place friction loss long service life.

Description

A kind of clutch booster

Technical field

This utility model relates to the clutch operating device of vehicle transmission, more specifically, it relates to a kind of clutch booster。

Background technology

Along with the development of automotive engineering and popularizing of use, the handling comfort of car load be it is also proposed increasingly higher requirement by user, and the handling comfort of clutch pedal is also affect user to one of index that car load driving is evaluated。Be typically in clutch specification that car load uses more than 300 time, be accomplished by between clutch master cylinder clutch booster is installed, use the compressed gas source of vehicle to provide power-assisted for clutch。

Heavy goods vehicles clutch booster is generally connected with the clutch housing of change speed gear box front portion, promotes clutch separation with pressure-air。In the course of the work, piston in cylinder comes and goes can produce Repiration, produce the circulation of inner air and outer air whereby, suck required cavity, turbidity thereof after exhalation internal work, being typically provided ventilation barrel on cylinder for this, meet piston and come and go movable required gas, specific works principle can refer to application number clutch booster disclosed in the Chinese patent of " 2013102383935 "。But in prior art when production and processing clutch booster, because push rod needs to drive piston rod back and forth movement back and forth in pneumatic cylinder, therefore when installing push rod, generally it is used for conveniently installing push rod by being provided with certain surplus between push rod and piston rod, so cause that the problem brought is exactly that each push rod is when driving piston rod movement, certain mobile surplus can be there is in push rod compared to piston rod, thus transmission accuracy when causing controlling piston rod transmission is not high, and in honor, Relative friction causes that the abrasion between push rod and piston rod is bigger for a long time, service life shortens, it is thus desirable to propose a kind of scheme to solve this problem。

Utility model content

For the deficiency that prior art exists, the purpose of this utility model be in that to provide a kind of convenient install and transmission precisely, the clutch booster of long service life。

For achieving the above object, this utility model provides following technical scheme: a kind of clutch booster, including the pneumatic cylinder connected along same axis and hydraulic cylinder, it is mounted with piston in described pneumatic cylinder, the side of piston is connected to piston rod, one end of piston rod is connected to push rod, is formed with cavity between described push rod and piston rod, is mounted with the pad for conflicting between push rod and piston rod in described cavity。

Pass through technique scheme, the gap formed between push rod and piston rod is mounted with pad, pad is for conflicting respectively at push rod and piston rod, so will without being located relatively at generation transmission when push rod pulls piston rod or pushes piston rod, the cause avoided produces cavity and relative transmission occurs, the problem so solving relative displacement on the convenient basis installed, reduce frictional dissipation, add service life, simultaneously as eliminate relative displacement between piston rod and push rod, it is achieved that transmission effect accurately。

As preferably, described pad has and has elastic elastomeric material and make。

Pass through technique scheme, pad is made by having elastic elastomeric material, this is disposed to push rod and piston rod when being arranged in cavity by pad and conflicts respectively, elastomeric material has the quality of flexible relative and elastic deformation can occur, the friction between push rod and piston rod can be effectively reduced, the noise produced when simultaneously reducing friction, and when pad can be convenient for changing along bad time。

As preferably, described pad has the metal material with rigidity to make。

Pass through technique scheme, pad has the metal material with rigidity to make, so it is disposed to when pad is conflicted between push rod and piston rod completely, completely the space between push rod and piston rod can be pushed against completely, thus ensure transmission more precisely, high efficiency more, simultaneously as the metal material of rigidity is not easy to be deformed, long service life, stable performance, highly reliable。

As preferably, the cross section of described pad is rectangle。

By technique scheme, it is to prevent pad from self transmission phenomenon relatively occurring in air that the cross sectional shape of pad is provided with rectangle, it is ensured that pad and push rod and piston rod push against power, it is ensured that the accuracy of its transmission。

As preferably, the cross section of described pad is circular。

By technique scheme, it is to reduce the contact area between push rod and piston rod that the cross sectional shape of pad is arranged to circle, becoming linear contact lay by face contact, thus reducing frictional dissipation, increasing its service life。

As preferably, described push rod arranges and protrudes from push rod sidewall for one end semicircular in shape being connected with piston rod and arranges。

By adopting technique scheme, one end that push rod is connected with piston rod is arranged to semicircle, and semicircular one end protrudes from the sidewall of push rod and is disposed to ensure the effectiveness when pad and push rod conflict, so that its stability has enough guarantees。

Compared with prior art this utility model has an advantage that one: transmission is accurate, without relative displacement；Its two: operationally friction stroke low, frictional dissipation is little；Its three: convenient install, simply after installing push rod and piston rod, pad be installed in the cavity of formation, do not affect normal installation steps；Its four: stability is high, long service life。

Accompanying drawing explanation

Fig. 1 is the structural representation of embodiment one；

Fig. 2 is the A portion enlarged diagram of Fig. 1。

In figure: 1, push rod；2, piston rod；3, pneumatic cylinder；4, cavity；5, pad；6, circular protrusions。

Detailed description of the invention

Below in conjunction with drawings and Examples, this utility model is described in detail。

Embodiment one: as shown in Figure 1, it is internal that piston rod is arranged on pneumatic cylinder 3, offer in one end of piston rod 2 for the mounting groove suitable with push rod 1, then one end of push rod 1 is put in mounting groove, now it is formed with cavity 4 between push rod 1 and piston rod 2, namely as shown in Figure 2, it is arranged with pad 5 now by installing at cavity 4 place, pad 5 is surrounded on the perisporium of push rod 1 and arranges, and the two ends of pad 5 push against respectively at push rod 1 and piston rod 2, relative displacement would not be there is between such push rod 1 and piston rod 2, this ensures that there the accuracy making it have transmission and wear and tear little, the effect of long service life, simultaneously in order to increase pad 5 between push rod 1 and piston rod 2 time stability, this section of push rod 1 is arranged to semicircle, and this semicircular circular protrusions 6 protrudes from the sidewall of push rod 1, namely circular protrusions 6 is formed with ladder relative to push rod 1, such pad 5 is conflicted between ladder and piston rod 2, ensure that pad 5 is not fall off skidding, such effect is obvious, stability is high。

Embodiment two: made by having elastic elastomeric material with the pad 5 that differs only in of embodiment one, enumerate and can select rubber washer。

Embodiment three: be made up of the metal material with rigidity with the pad 5 that differs only in of embodiment one, enumerate and can select steel loop。

Embodiment four: with the cross section differing only in pad 5 of embodiment one for circular。

Embodiment five: be rectangle with the cross section differing only in pad 5 of embodiment one。

Embodiment six: be made up of the metal material with rigidity with the pad 5 that differs only in of embodiment one, and the cross section of pad 5 is arranged to circle, so it is disposed to when pad 5 is made up of metal material, the character of metal material is relatively hard, when there is the trend of relative movement in such piston rod 2 and push rod 1, the contact area of circular metal material and push rod 1 and piston rod 2 is greatly reduced, and reduces the abrasion between metal and metal, thus better ensure that its service life。

Embodiment seven: have with the pad 5 that differs only in of embodiment one there is elastic elastomeric material make, and the cross section of pad 5 is arranged to rectangle, because when pad 5 has elastomeric material to make, its quality is relatively soft, when there is the trend of relative movement between piston rod 2 and push rod 1, pad 5 easily deforms, and is arranged to rectangle and can effectively reduce the deformation ratio of pad 5, thus improving the accuracy of transmission。

The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to above-described embodiment, and all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model。It should be pointed out that, for those skilled in the art, without departing from the some improvements and modifications under this utility model principle premise, these improvements and modifications also should be regarded as protection domain of the present utility model。

Claims

1. a clutch booster, including the pneumatic cylinder (3) connected along same axis and hydraulic cylinder, described pneumatic cylinder is mounted with piston in (3), the side of piston is connected to piston rod (2), one end of piston rod (2) is connected to push rod (1), cavity (4) it is formed with between described push rod (1) and piston rod (2), it is characterised in that: it is mounted with the pad for conflicting between push rod (1) and piston rod (2) in described cavity (4)。

2. a kind of clutch booster according to claim 1, it is characterised in that: described pad (5) has and has elastic elastomeric material and make。

3. a kind of clutch booster according to claim 1, it is characterised in that: described pad (5) has the metal material with rigidity to make。

4. a kind of clutch booster according to claim 1 and 2, it is characterised in that: the cross section of described pad (5) is rectangle。

5. a kind of clutch booster according to claim 1 or 3, it is characterised in that: the cross section of described pad (5) is circular。

6. a kind of clutch booster according to claim 1, it is characterised in that: described push rod (1) arranges and protrudes from push rod (1) sidewall for one end semicircular in shape being connected with piston rod (2) and arranges。