CN209510950U - A kind of novel heavy duty vehicular clutch control system - Google Patents

Abstract

The utility model discloses a kind of novel heavy duty vehicular clutch control systems, it is characterized by comprising gas control servo valve, gas source and action barrel, the gas control servo valve includes sliding mandril, air inlet, gas outlet and exhaust outlet, the sliding mandril is connected with clutch pedal, the air inlet is connected to gas source, the gas outlet is connect with action barrel one end, and the action barrel other end connects clutch shifter.It optimizes clutch control system structure, simplifies clutch control system layout, while improving clutch performance, reduces cost.

Description

A kind of novel heavy duty vehicular clutch control system

Technical field

The utility model relates to vehicular clutch engineering device technique field more particularly to a kind of novel heavy duty vehicular clutch controls System processed.

Background technique

Currently, domestic load-carrying commercial vehicle and large-scale passenger car clutch control system generally use structure shown in Fig. 1.This is System mainly includes boosting cylinder for clutch, four part of oil cylinder, clutch master cylinder and gas source.

The System Working Principle are as follows: when clutch needs to separate, step on pedal with foot, pedal force is made to act on clutch master In the cylinder piston, piston motion generates oil pressure and enters boosting cylinder for clutch；It pushes boosting cylinder for clutch baroswitch open simultaneously, makes Oil pressure and air pressure act on the piston in boosting cylinder for clutch simultaneously, and forming biggish power output causes clutch assembly to push Shift fork realizes clutch separation.It is to unclamp pedal, boosting cylinder for clutch and clutch master cylinder when clutch assembly needs to engage Piston is retracted, and power output becomes 0, then realizes clutch engagement.

Clutch control system structure according to Fig. 1, the structure must have oil circuit and gas circuit arrangement, and structure is more complex, Higher cost.

Utility model content

The utility model is intended to provide a kind of novel heavy duty vehicular clutch control system, and very good solution is above-mentioned to ask Topic optimizes clutch control system structure, simplifies clutch control system layout, while improving clutch performance, drops Low cost.

The technical solution of the utility model is a kind of novel heavy duty vehicular clutch control system, it is characterised in that: including Gas control servo valve, gas source and action barrel, the gas control servo valve include sliding mandril, air inlet, gas outlet and exhaust outlet, described Sliding mandril is connected with clutch pedal, and the air inlet is connected to gas source, and the gas outlet is connect with action barrel one end, described The action barrel other end connects clutch shifter.

Further, the action barrel is air pressure piston type telescoping cylinder.

Further, the gas control servo valve includes the valve body being socketed in outside sliding mandril, the valve body and sliding mandril It is slidably connected, servo valve core is arranged in the sliding mandril, the servo-actuated spool is slidably connected with sliding mandril.

Further, valve seat, follower spring seat, sealing lock are disposed in the valve body from the bottom to top.

Further, the valve body is fixedly connected with valve seat, and the valve body and valve seat are provided with sealing ring.

Further, the sealing lock is fixedly mounted in sliding mandril, and the follower spring seat is slidably arranged in valve body It is interior.

Further, the first sealing compatible with sealing lock, follower spring seat is respectively arranged on the servo-actuated spool Face, secondary sealing area.

Further, the first spring, the follower spring seat and sliding are provided between the valve seat and follower spring seat It is provided with second spring between mandril, third spring is provided between the sliding mandril and servo-actuated spool.

Further, the air inlet is oppositely arranged with gas outlet.

Further, the exhaust outlet is arranged on valve seat.

Further, the gas source is compressed gas source.

The beneficial effects of the utility model are:

1. oil control clutch master cylinder is changed to pure gas control servo valve, gas control on the basis of existing clutch control system Servo valve has the output pressure to match with pedal force size, and manipulation is made to have followability；

2. improving serial components boosting cylinder for clutch, cancel oil cylinder part, is realized using simple gas control action barrel defeated Power output；

3. cancelling system oil work system and medium, the gas control servo valve control action cylinder with servo antrol is used instead, Simplied system structure, optimization pipeline arrangement, reduces system cost, improves system performance, while preventing oil liquid leakage from polluting environment；

4. simplied system structure improves clutch performance, reduces costs, mainly apply to various bogies, large size multiplies Use vehicle.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of existing clutch control system；

Fig. 2 is the structural schematic diagram of the utility model；

Fig. 3 is the schematic diagram of the section structure of the utility model gas control servo valve；

In figure: 1. gas control servo valves, 11. air inlets, 12. gas outlets, 13. exhaust outlets, 14. sliding mandrils, 15. valve bodies, 16. servo-actuated spool, 161. primary sealing areas, 162. secondary sealing areas, 17. valve seats, 18. follower spring seats, 19. sealing locks, 110. the first spring, 111. second springs, 112. third springs, 2. gas sources, 3. action barrel.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality It is further elaborated with novel.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation or be constructed and operated in a specific orientation, therefore it should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；Of course, can also be mechanical connection, it is also possible to be electrically connected；In addition, it can also be and be connected directly, be also possible to Indirectly connected through an intermediary, or it can be connection inside two elements.For those of ordinary skill in the art and Speech, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.

As Figure 2-3, the utility model provides a kind of novel heavy duty vehicular clutch control system, and feature exists In: including gas control servo valve 1, gas source 2 and action barrel 3, the gas control servo valve 1 includes sliding mandril 14, air inlet 11, outlet Mouthfuls 12 and exhaust outlet 13, the sliding mandril 14 be connected with clutch pedal, the air inlet 11 is connected to gas source 2, it is described out Port 12 is connect with 3 one end of action barrel, and 3 other end of action barrel connects clutch shifter.

The action barrel 3 is pneumaticpiston telescoping cylinder, pushes piston by the pressed gas that gas outlet 12 is discharged, makes to stretch Contracting arm stretches out, and then pushes shift fork.

The gas control servo valve 1 includes the valve body 15 being socketed in outside sliding mandril 14, the valve body 15 and sliding mandril 14 It is slidably connected, servo valve core 16 is arranged in the sliding mandril 14, the servo-actuated spool 16 is slidably connected with sliding mandril 14. Sealing ring is set between the valve body 15 and sliding mandril 14, is provided with sealing between the servo-actuated spool 16 and sliding mandril 14 Circle.

Valve seat 17, follower spring seat 18, sealing lock 19 are disposed in the valve body 15 from the bottom to top.

The valve body 15 is fixedly connected with valve seat 17, and the valve body 15 is provided with sealing ring with valve seat 17.

The sealing lock 19 is fixedly mounted in sliding mandril 14, and the follower spring seat 18 is slidably arranged in valve body 15 It is interior, sealing ring is provided between follower spring seat 18 and valve body 15.

Primary sealing area compatible with sealing lock 19, follower spring seat 18 is respectively arranged on the servo-actuated spool 16 161, secondary sealing area 162.That is sealing lock 19 can carry out contact sealing with primary sealing area 161, and follower spring seat 18 can be with the Two sealing surfaces 162 carry out contact sealing.

The first spring 110, the follower spring seat 18 and sliding are provided between the valve seat 17 and follower spring seat 18 It is provided with second spring 111 between mandril 14, is provided with third spring 112 between the sliding mandril 14 and servo-actuated spool 16.

The air inlet 11 is oppositely arranged with gas outlet 12.The exhaust outlet 13 is arranged on valve seat 17.

The gas source 2 is compressed gas source, provides power for action barrel 3.

When i.e. clutch needs to separate, pedal is stepped on foot, pedal force is made to act on the sliding mandril 14 of gas control servo valve 1 On, since valve 1 has the output pressure characteristic to match with the main power of pedal to gas control at any time, it is defeated to generate the air pressure to match It is sent on the piston of action barrel 3, and piston is pushed to generate output action power.3 power output of action barrel causes clutch assembly to push Shift fork realizes clutch separation.When clutch assembly needs to engage, pedal is unclamped, in action barrel 3 and gas control servo valve 1 Air is discharged by the exhaust outlet 13 of gas control servo valve 1, and power output becomes 0, then realizes clutch engagement.

Specifically, when initial position, since sliding mandril 14 is under the effect of third spring 112, make servo-actuated spool 16 with it is close It seals lock 19 to close, air inlet 11 and gas outlet 12 disconnect；Servo-actuated spool 16 is opened with 18 seal of follower spring seat simultaneously, outlet Mouth 12 is connected with exhaust outlet 13, therefore the compressed air in gas outlet 12 is discharged by exhaust outlet 13.

When sliding mandril 14 is in pedal effort lower slider, drive servo-actuated spool 16 mobile, servo-actuated spool 16 with moving The contact of 18 seal lip of spring abutment, gas outlet 12 and exhaust outlet 13 are closed.As sliding mandril 14 continues to move downward, due to first Spring 111 acts on, and overcomes 113 active force of second spring 112 and third spring, makes 19 mouthfuls of lock openings of servo-actuated spool 16 and sealing, Air pressure enters gas outlet 12 from air inlet 11, establishes pressure in gas outlet 12；The pressure acts on follower spring seat 18 simultaneously On, move down follower spring seat 18；Since follower spring seat 18 moves down, servo-actuated spool 16 is caused to move down, with Lock 19 is sealed to close.At this point, servo-actuated spool 16 is simultaneously closed off with sealing lock 19 and follower spring seat 18, protect 12 pressure of gas outlet It holds constant.When sliding mandril 14 is in the case where pedal external force acts on again, which breaks, and re-forms balance.Therefore, gas outlet 12 air pressures are the linear relation of following up of pedal force size with sliding mandril 14.

On the basis of existing clutch control system, oil control clutch master cylinder is changed to gas control servo valve 1, gas control with Dynamic valve 1 has the output pressure to match with pedal force size, and manipulation is made to have followability；It improves simultaneously clutch power-assisted Cylinder realizes power output using simple action barrel 3；Cancel system oil work system and medium, uses instead with servo antrol 1 control action cylinder 3 of gas control servo valve, simplied system structure optimize pipeline, reduce system cost, improve system performance；Prevent oil Environment is polluted in leakage；Mainly apply to various bogies, large-scale passenger car.

Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence In the case of, those skilled in the art can make various corresponding changes and modifications, but these phases according to the utility model The change and modification answered all should belong to the protection scope of the utility model the attached claims.

Claims (10)

1. a kind of novel heavy duty vehicular clutch control system, it is characterised in that: including gas control servo valve, gas source and action barrel, The gas control servo valve includes sliding mandril, air inlet, gas outlet and exhaust outlet, and the sliding mandril is connected with clutch and steps on Plate, the air inlet are connected to gas source, and the gas outlet is connect with action barrel one end, and the action barrel other end connects clutch Shift fork.

2. novel heavy duty vehicular clutch control system according to claim 1, it is characterised in that: the action barrel is gas Press piston type telescoping cylinder.

3. novel heavy duty vehicular clutch control system according to claim 1, it is characterised in that: the gas control servo valve Including the valve body being socketed in outside sliding mandril, the valve body is slidably connected with sliding mandril, be arranged in the sliding mandril with Movable valve plug, the servo-actuated spool are slidably connected with sliding mandril.

4. novel heavy duty vehicular clutch control system according to claim 3, it is characterised in that: in the valve body under It is supreme to be disposed with valve seat, follower spring seat, sealing lock.

5. novel heavy duty vehicular clutch control system according to claim 4, it is characterised in that: the valve body and valve seat It is fixedly connected, the valve body and valve seat are provided with sealing ring.

6. novel heavy duty vehicular clutch control system according to claim 5, it is characterised in that: the sealing lock is fixed It is mounted in sliding mandril, the follower spring seat is slidably arranged in valve body.

7. novel heavy duty vehicular clutch control system according to claim 6, it is characterised in that: on the servo-actuated spool It is respectively arranged with primary sealing area compatible with sealing lock, follower spring seat, secondary sealing area.

8. novel heavy duty vehicular clutch control system according to claim 7, it is characterised in that: the valve seat and servo-actuated It is provided with the first spring between spring base, second spring, the sliding are provided between the follower spring seat and sliding mandril Third spring is provided between mandril and servo-actuated spool.

9. novel heavy duty vehicular clutch control system according to claim 4, it is characterised in that: the air inlet with go out Port is oppositely arranged, and the exhaust outlet is arranged on valve seat.

10. novel heavy duty vehicular clutch control system according to claim 4, it is characterised in that: the gas source is pressure Contracting gas source.