CN107725760A - The full Pneumatic shift operation of gearbox and control system - Google Patents
The full Pneumatic shift operation of gearbox and control system Download PDFInfo
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- CN107725760A CN107725760A CN201711072329.9A CN201711072329A CN107725760A CN 107725760 A CN107725760 A CN 107725760A CN 201711072329 A CN201711072329 A CN 201711072329A CN 107725760 A CN107725760 A CN 107725760A
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- Prior art keywords
- air
- valves
- valve
- controlled list
- speed changer
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0704—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising locking elements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The present invention provides a kind of full Pneumatic shift operation of gearbox and control system, including：Air-filtering adjuster, gas path control valve, handle valve, double air controlled list H valves, air cylinder of speed changer, wherein：The input of air-filtering adjuster is connected with vehicle source of the gas, the output end of air-filtering adjuster connects the first input end of double air controlled list H valves and the input of gas path control valve respectively, the output end of gas path control valve and the input of handle valve connect, first air inlet of the first output end connection double air controlled list H valves of handle valve, second air inlet of the second output end connection double air controlled list H valves of handle valve, the low gear control terminal outlet of double air controlled list H valves is connected with the low gear air inlet of air cylinder of speed changer, the high gear control terminal outlet of double air controlled list H valves is connected with the high gear air inlet of air cylinder of speed changer.Present invention offer is a kind of simple and compact for structure, operates easy shift control system so that the fault rate of the full Pneumatic shift operation of gearbox and control system reduces, and service life is longer.
Description
Technical field
The present invention relates to a kind of vehicle shift system, and in particular to a kind of full Pneumatic shift operation of vehicle gear box and control
System processed.
Background technology
As highway in China carrier manages constantly standardization, it is efficient, the epoch of lean running have arrived, this
It is required that industry will be conducted oneself with dignity by Lifting Convey efficiency, reduction vehicle body, and reduce fuel consumption level of the unit volume of goods transported etc. and arrange
Apply to realize the higher level of profitability.And highway freight user requires that heavy truck possesses high-speed overload, lightweight, fuel economy
The attributes such as good, rate of attendance height, product demand gradually shift to high-endization., it is expected that carry high-power, the weight of more gear gearboxes
Card product will increasingly become main flow, such as 16 gears, 20 gears, 24 shift transmissions.
Existing shift control system is the gas of two-position five-way list H valves and bi-bit bi-pass that air cylinder of speed changer is controlled by one
What the compositions such as the shift handle valve of road control valve and two-position three way were shifted gears to realize secondary box of gearbox, this Pneumatic shift manipulates
Although system connection is simple, the handle valve pre-selection of user elder generation, then gear shift operation are necessarily required, if user first operates gearshift, then
Handle valve preselects, it may appear that is collaborated inside air cylinder of speed changer, causes speed changer high to low gear switching failure.This set system is due to becoming
After fast device change gear, there is no high pressure gas in air cylinder of speed changer, it is impossible to piston is maintained at high under the thrust of high pressure gas
On gear or low gear position, hence in so that speed changer easy off-gear in vehicle travel process.Although can be by speed changer gas
Cylinder and auxiliary box synchronizer band self-locking device, but speed changer structure is complicated, increase manufacturing cost；Original handle valve is whole
It is two-position three way valve arrangement, for controlling one end gas control end of single H valves, because this valve is without memory function, so when change
Fast device cylinder is after high gear area or low gear area is entered, and because gas path control valve can disconnect source of the gas, air cylinder of speed changer loses high pressure
Gas and can not be stopped in high gear or low gear position, existing technology is by increasing in the shift fork axle of air cylinder of speed changer from lock machine
Structure, although can also reach the effect of self-locking, speed changer structure can be complicated, increase manufacturing cost.Therefore, prior art
Some technical problems anxious to be resolved on Pneumatic shift operating system be present.
The content of the invention
For drawbacks described above, it is an object of the invention to provide a kind of simple in construction and raising product service life, reduce
Fault rate, to solve the technical problem of the Pneumatic shift operating system of prior art.
To achieve the above object, present invention employs following technical scheme：
A kind of full Pneumatic shift of gearbox operates and control system, it is characterised in that including：One air-filtering adjuster,
One double air controlled list H valves, a gas path control valve, one handle valve and an air cylinder of speed changer, wherein：The air-filtering adjuster it is defeated
Enter end with vehicle source of the gas to be connected, it is first defeated to connect the double air controlled list H valves respectively for the output end of the air-filtering adjuster
Entering the input of end and the gas path control valve, the output end of the gas path control valve is connected with the input of the handle valve,
First output end of the handle valve connects the first air inlet of the double air controlled list H valves, the second output end of the handle valve
Connect the second air inlet of the double air controlled list H valves, the outlet of low gear control terminal and the speed changer gas of the double air controlled list H valves
The low gear air inlet connection of cylinder, the outlet of high gear control terminal and the high gear air inlet of the air cylinder of speed changer of the double air controlled list H valves
Mouth connection.
According to the full Pneumatic shift operation of gearbox described in the embodiment of the present invention and control system, the double air controlled list H valves
Including:One valve body, a valve element, two pistons, two V-type circles and a self-locking device；Wherein：The valve element is assemblied in the valve body
Among；The both ends of the valve element respectively one piston of assembling, and the V-type circle is arranged on the piston；The self-locking device includes
One steel ball, a spring and a holding screw, the holding screw lock pay in the screw hole of valve body and vertical with the valve element, institute
The one end for stating spring is connected with the holding screw, and the other end of the spring is connected with one end of the steel ball, the valve element
Upper two grooves offered corresponding to the steel ball parallel to valve element, steel ball mobile link between two grooves.
According to the full Pneumatic shift operation of gearbox described in the embodiment of the present invention and control system, in addition to two O-rings,
The double air controlled list H valves are paid on the air cylinder of speed changer with screw lock, the outlet of the low gear control terminals of the double air controlled list H valves with
The low gear air inlet of the air cylinder of speed changer is tightly connected with the O-ring, the high gear control terminal outlet of the double air controlled list H valves
It is tightly connected with the high gear air inlet of the air cylinder of speed changer with the O-ring.
According to the full Pneumatic shift operation of gearbox described in the embodiment of the present invention and control system, described air cylinder of speed changer
Including：Cylinder body, high to low gear piston, limited block and shift fork axle, wherein：The limited block with the high to low gear piston is parallel successively sets
It is placed in the cylinder interior and successively with the shift fork axis connection, the cavity of the air cylinder of speed changer is by the high to low gear piston point
It is segmented into two cavitys, the cavity of the limited block side is low gear chamber, and the cavity of other side is high gear chamber, the low gear air inlet
Mouth communicates with the low gear chamber, and the high gear air inlet communicates with the high gear chamber.
It it is two according to the full Pneumatic shift operation of gearbox described in the embodiment of the present invention and control system, the handle valve
Five-way type shift handle valve.
Technical characteristic as a result of more than so that the present invention has the following advantages and actively compared to prior art
Effect：
Firstth, design structure simple and compact of the invention, two outlets of double air controlled list H valves are straight with the interface of air cylinder of speed changer
Connect and be connected using board-like plus O-ring, save 4 jointings and tracheae, reduce leakage point so that connection is more reliable, drop
Low production hour, has saved cost；
Secondth, Pneumatic shift operating system of the invention, thoroughly solves user and is likely to occur by predetermined operation not going out
The problem of existing air cylinder of speed changer is collaborated, while it also avoid the off-gear problem of auxiliary box synchronizer, and air cylinder of speed changer and same
Step device need not be designed to the mechanism arrangement with self-locking, reduce speed changer manufacturing cost and service life is longer；
3rd, air cylinder of speed changer of the invention does not carry self-locking mechanism, and shift fork axle is in motion process not by side
Xiang Li, reduce cylinder leakage tester, scuffing of cylinder bore etc. and use fault rate.
Certainly, any one specific embodiment of present invention is implemented, the skill might not simultaneously with all of the above
Art effect.
Brief description of the drawings
Fig. 1 is structure gas circuit schematic diagram of the present invention；
Fig. 2 is double air controlled list H valve arrangement schematic diagrames of the present invention；
Fig. 3 is self-locking device structural representation of the present invention；
Fig. 4 is another structure gas circuit schematic diagram of the present invention；
Fig. 5 is double air controlled list H valves of the present invention and air cylinder of speed changer connection diagram；
Fig. 6 is the cutaway view of air cylinder of speed changer.
Embodiment
For ease of understanding, presently preferred embodiments of the present invention is described in further detail below in conjunction with accompanying drawing.
It refer to Fig. 1 and Fig. 2, a kind of Pneumatic shift operating system of vehicle, including：Air-filtering adjuster 10, double gas
Single H valves 20, gas path control valve 30, handle valve 40 and air cylinder of speed changer 50 are controlled, annexation therein is：
The input of air-filtering adjuster 10 is connected with vehicle source of the gas, receives in the input of air-filtering adjuster 10
Compressed air air pressure is 7-8Bar, and the output end output pressure of air-filtering adjuster 10 is 5.5-6Bar；In addition,
The output end of air-filtering adjuster 10 connects first input end 213 and the gas circuit control of double air controlled list H valves 20 respectively
The input of valve 30 processed,
And the output end of gas path control valve 30 is connected with the input of handle valve 40, gas circuit A is formed；
First air inlet 211 of the first output end connection double air controlled list H valves 20 of handle valve 40, forms gas circuit B；
Second air inlet 212 of the second output end connection double air controlled list H valves 20 of handle valve 40, forms gas circuit C；
The low gear control terminal outlet 214 of double air controlled list H valves 20 is connected with the low gear air inlet 55 of air cylinder of speed changer 50,
The high gear control terminal outlet 215 of double air controlled list H valves 20 is connected with the high gear air inlet 56 of air cylinder of speed changer 50.
In addition, refer to Fig. 2, invention itself utilizes the double air controlled list H valves principle with self-locking, and in itself on valve element again
Increase self-locking mechanism, reach the protection of double self locking, under this scheme, the double air controlled list H valves 20 include:One valve body 21,
One 23, two, the piston of valve element 22, two V-type circle 24 and self-locking device 25, in the present embodiment, the quantity of self-locking device 25 is two
It is individual, but can not be used for limiting this patent；The annexation of wherein part is as follows：The valve element 22 be assemblied in the valve body 21 it
In；
The both ends of the valve element 22 respectively one piston 23 of assembling, and the V-type circle 24 is arranged on the piston 23；
Fig. 3 is please refer to simultaneously, and each self-locking device 25 includes a steel ball 251, a spring 252 and a holding screw
253,
The lock pair of holding screw 253 is in the screw hole of the valve body 21 and vertical with the valve element 22,
One end of the spring 252 is connected with the holding screw 253,
The other end of the spring 252 is connected with the steel ball 251,
On the valve element 22 two grooves 221 parallel to valve element 22, the steel ball are offered corresponding to the steel ball 251
251 in two grooves, 221 mobile links, and in the present embodiment, the quantity of self-locking device 25 is two, so corresponding steel ball
251 grooves 221 opened up have two row altogether, often show two grooves 221.Herein it is noted that double air controlled list H valves 20 be by with
On part formed, be further opened with some stomatas on the valve body 21 of double air controlled list H valves in addition, be the first air inlet respectively
211st, the second air inlet 212, first input end 213, low gear control terminal outlet 214, high gear control terminal outlet 215, low gear control
Leakage port 216 and high gear control leakage port 217.
First air inlet 211 and the second air inlet 212 are separately positioned on the valve body 21 at the both ends of valve element 22, when high pressure gas from
When first air inlet 211 is come in, the movement of the right direction of valve element 22 is promoted, and when high pressure gas is come in from the second air inlet 212, push away
The left direction of movable valve plug 22 moves, and now, piston 23 and V-type circle 24 have played airtight effect, and high pressure gas will not disorderly go here and there, in valve
When core 22 moves left and right, the steel ball 251 in groove 221 is left groove 221 by the pressure of valve element 22, two grooves 221 it
Between move, after another groove 221 is reached, valve element 22 is no longer moved by spacing, and steel ball 251 is by the pressure of spring 252
Into in groove 221, when being not greater than the strength of spring 252, steel ball 251 is withstood in groove 221 by the pressure of spring 252,
It will not be moved so that valve element 22 is fixed in valve body 21, reach the function of locking.
When high pressure gas is come in from the first air inlet 211, the movement of the right direction of valve element 22 is promoted, now first input end
213 are connected ventilation with high gear control terminal outlet 215, and low gear control terminal outlet 214 and the low gear control connection of leakage port 216 are logical
Gas；When high pressure gas is come in from the second air inlet 212, promote the movement of valve element 22 left direction, now first input end 213 with it is low
The connection ventilation of control terminal outlet 214 is kept off, and high gear control terminal exports 215 and the high gear control connection ventilation of leakage port 217.
Then, Fig. 4 and Fig. 5, another embodiment of the invention, two outlets of double air controlled list H valves 20 and speed change be refer to
The interface of device cylinder 50 is directly connected using board-like plus O-ring 57, and the double air controlled list H valves 20 are paid in the speed change with screw lock
It is to be paid with three screw locks on device cylinder 50, in the present embodiment, but can not be used for limiting this patent, the double air controlled list H valves
20 low gear control terminal outlet 214 and the low gear air inlet 55 of the air cylinder of speed changer 50 are tightly connected with O-ring 57, described double
The high gear control terminal outlet 215 of gas control list H valves 20 is with the high gear air inlet 56 of the air cylinder of speed changer 50 with 57 airtight company of O-ring
Connect.
In addition, refer to Fig. 6, described air cylinder of speed changer 50 includes：Cylinder body 51, high to low gear piston 52, limited block 53, dial
Fork shaft 54, low gear air inlet 55 and high gear air inlet 56, wherein：The limited block 53 and the high to low gear piston 52 are parallel successively
It is arranged at the inside of cylinder body 51 and is connected successively with the shift fork axle 54, the cavity of the air cylinder of speed changer 50 is by the height
Gear piston 52 is divided into two cavitys, and the cavity of the side of limited block 53 is low gear chamber, and the cavity of other side is high gear chamber,
The low gear air inlet 55 communicates with the low gear chamber, and the high gear air inlet 56 communicates with the high gear chamber.The limited block
53 be the limit advanced to the left for limiting high to low gear piston 52, ensures that low gear air inlet 55 communicates with low gear chamber air-flow.
For synthesis, when high pressure gas is come in from the first air inlet 211, the movement of valve element 22 right direction is promoted, now the
One input 213 is connected ventilation with high gear control terminal outlet 215, and high pressure gas is entered from the high gear air inlet 56 on air cylinder of speed changer 50
Enter, promoting high to low gear piston 52, drive shift fork axle 54 changes to high gear to left movement, and now low gear control terminal exports to left movement
214 and low gear control leakage port 216 connection ventilation, from low gear chamber come out gas be thus discharged into air；And work as high pressure gas
When coming in from the second air inlet 212, the movement of the left direction of valve element 22 is promoted, now first input end 213 is brought out with low gear control
The connection ventilation of mouth 214, high pressure gas enter from the low gear air inlet 55 on air cylinder of speed changer 50, promote high to low gear piston 52 to transport to the right
It is dynamic, drive shift fork axle 54 to move right change low gear, and now high gear control terminal outlet 215 and high gear control leakage port 217 connect
Gas is connected, thus the gas come out from high gear chamber is discharged into air.
To be said in addition, the handle valve 40 that the present invention designs is two-position five-way formula shift handle valve 40, double for controlling
Gas control list H valves 20 and then to control air cylinder of speed changer 50, so that air cylinder of speed changer 50 does not need self-locking device, reduce speed change
The cost of manufacture of device.
The present embodiment is operated in the following manner：
In main gas circuit, the 7-8Bar pressure-airs from vehicle source of the gas are after air-filtering adjuster 10, air-flow pressure
Power drops to 5.5-6Bar or so.
When high gear control terminal outlet 215 is opened, high pressure gas will enter from the high gear air inlet 56 on air cylinder of speed changer 50,
High to low gear piston 52 is promoted to drive shift fork axle 54 to change to high gear to left movement to left movement；
When low gear control terminal outlet 214 is opened, high pressure gas will enter from the low gear air inlet 55 on air cylinder of speed changer 50,
Promote high to low gear piston 52 to move right, drive shift fork axle 54 to move right change low gear.
In gas circuit is controlled, handle valve 40 is a two-position five-way formula shift handle valve 40, two gas ports and double air controlled list H
Two control gas interfaces of valve 20 are connected, and are each responsible for opening the high gear control terminal outlet 215 and low gear control of double air controlled list H valves 20
System brings out mouth 214.
When gas path control valve 30 in an ON state：Now high voltage control gas comes handle valve 40, handle valve 40 through gas circuit A
Opening or closing for the high and low gear control terminal outlet 214 of double air controlled list H valves 20 is controlled by gas circuit B and C respectively；When gas circuit B ventilates
When, high gear control terminal outlet 215 is opened, and the high pressure gas come by air-filtering adjuster 10 will enter from high gear air inlet 56
The high gear chamber of air cylinder of speed changer 50 promotes high to low gear piston 52 to drive shift fork axle 54 to left movement to left movement.Conversely, work as gas circuit
When C ventilates, low gear control terminal outlet 214 is opened, and the high pressure gas come by air-filtering adjuster 10 will be from low gear air inlet
The 55 low gear chambers for entering air cylinder of speed changer 50 promote high to low gear piston 52 to move right, and drive shift fork axle 54 to move right.Shift fork
One end connection air cylinder of speed changer 50 of axle 54, and the other end of shift fork axle 54 connection auxiliary box synchronizer shift fork, become for adjusting
Fast device gear.
The design of the present invention is in view of the deficienciess of the prior art, a kind of Pneumatic shift operating system is provided, by gas circuit
It is divided into main gas circuit and control gas circuit, main gas circuit controls air cylinder of speed changer by a double air controlled list H valve 20 with self-locking mechanism
50, gas path control valve 30 of the gas circuit by two-position three way is controlled, outlet connects the handle valve 40 of two-position five-way, 40 liang of outlets of handle valve
The gas control end of double air controlled list H valves 20 is connect respectively.Thoroughly solving user is likely to occur the speed changer not occurred by predetermined operation
The problem of cylinder 50 is collaborated, while the off-gear problem of auxiliary box synchronizer is it also avoid, and also air cylinder of speed changer 50 and synchronizer are not
Need to be designed to the mechanism arrangement with self-locking, reduce speed changer manufacturing cost；Utilize original of the double air controlled list H valves 20 with self-locking itself
Reason, and self-locking mechanism is further added by valve element 22, reach the protection of double self locking.
It is in addition, board-like plus O-shaped by the way that the interface of the 20 liang of outlets of double air controlled list H valves and air cylinder of speed changer 50 is directly used
Circle 57 is connected, and double air controlled list H valves 20 are arranged on air cylinder of speed changer 50 to save 4 jointings gentle by 3 screws
Pipe, reduces leakage point so that connection is more reliable, shortens the response time of the action of air cylinder of speed changer 50, improves speed changer
The shift time of synchronizer, the failure of synchronizer is effectively reduced, it is prior to reduce assembling, and repair very convenient, cost
Substantially reduce；Further, the present invention provides a kind of two-position five-way formula shift handle, becomes for controlling double air controlled list H valves 20 to control
Fast device cylinder 50, so that air cylinder of speed changer 50 does not need self-locking device, reduce the cost of manufacture of speed changer.
Technical characteristic as a result of more than so that the present invention has the following advantages and actively compared to prior art
Effect：
Firstth, design structure simple and compact of the invention, two outlets of double air controlled list H valves are straight with the interface of air cylinder of speed changer
Connect and be connected using board-like plus O-ring, save 4 jointings and tracheae, reduce leakage point so that connection is more reliable, drop
Low production hour, has saved cost；
Secondth, Pneumatic shift operating system of the invention, thoroughly solves user and is likely to occur by predetermined operation not going out
The problem of existing air cylinder of speed changer is collaborated, while it also avoid the off-gear problem of auxiliary box synchronizer, and air cylinder of speed changer and same
Step device need not be designed to the mechanism arrangement with self-locking, reduce speed changer manufacturing cost and service life is longer；
3rd, air cylinder of speed changer of the invention does not carry self-locking mechanism, and shift fork axle is in motion process not by side
Xiang Li, reduce cylinder leakage tester, scuffing of cylinder bore etc. and use fault rate.
Certainly, any one specific embodiment of present invention is implemented, the skill might not simultaneously with all of the above
Art effect.
Invention preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment does not have all thin of detailed descriptionthe
Section, it is only described embodiment also not limit the invention.Obviously, according to the content of this specification, many repair can be made
Change and change.This specification is chosen and specifically describes these embodiments, is to preferably explain the principle and reality of the present invention
Using so that skilled artisan can utilize the present invention well.The present invention is only by claims and its entirely
The limitation of portion's scope and equivalent.Disclosed above is only presently preferred embodiments of the present invention, but is not used for limiting itself,
It is any to be familiar with those skilled in the art in the case of without prejudice to spiritual connotation of the present invention, the equivalent change done and change,
It all should be within the scope of the present invention.
Claims (2)
1. a kind of full Pneumatic shift of gearbox operates and control system, it is characterised in that including：One air-filtering adjuster, one
Double air controlled list H valves, a gas path control valve, one handle valve and an air cylinder of speed changer, wherein：
The input of the air-filtering adjuster is connected with vehicle source of the gas,
The output end of the air-filtering adjuster connects the first input end of the double air controlled list H valves and the gas circuit control respectively
The input of valve processed,
The output end of the gas path control valve is connected with the input of the handle valve,
First output end of the handle valve connects the first air inlet of the double air controlled list H valves, and the second of the handle valve is defeated
Go out the second air inlet that end connects the double air controlled list H valves,
The low gear control terminal outlet of the double air controlled list H valves is connected with the low gear air inlet of the air cylinder of speed changer,
The high gear control terminal outlet of the double air controlled list H valves is connected with the high gear air inlet of the air cylinder of speed changer；
The double air controlled list H valves include：One self-locking device, the self-locking device include a steel ball, a spring and a holding screw.
2. the full Pneumatic shift of gearbox as claimed in claim 1 operates and control system, it is characterised in that the double air controlled list
H valves also include：One valve body, a valve element, two pistons, two V-type circles；Wherein：
The valve element is assemblied among the valve body；
The both ends of the valve element respectively one piston of assembling, and the V-type circle is arranged on the piston；
The holding screw lock pair is in the screw hole of the valve body and vertical with the valve element,
One end of the spring is connected with the holding screw,
The other end of the spring is connected with the steel ball,
Two grooves parallel to valve element are offered corresponding to the steel ball on the valve element, the steel ball moves between two grooves
Dynamic connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072329.9A CN107725760A (en) | 2017-11-03 | 2017-11-03 | The full Pneumatic shift operation of gearbox and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072329.9A CN107725760A (en) | 2017-11-03 | 2017-11-03 | The full Pneumatic shift operation of gearbox and control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107725760A true CN107725760A (en) | 2018-02-23 |
Family
ID=61221579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711072329.9A Pending CN107725760A (en) | 2017-11-03 | 2017-11-03 | The full Pneumatic shift operation of gearbox and control system |
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| Country | Link |
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| CN (1) | CN107725760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259925A (en) * | 2019-05-22 | 2019-09-20 | 潍柴动力股份有限公司 | Vehicle shift device, vehicle and vehicle shift method |
-
2017
- 2017-11-03 CN CN201711072329.9A patent/CN107725760A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259925A (en) * | 2019-05-22 | 2019-09-20 | 潍柴动力股份有限公司 | Vehicle shift device, vehicle and vehicle shift method |
| CN110259925B (en) * | 2019-05-22 | 2020-12-22 | 潍柴动力股份有限公司 | Vehicle gear shifting device, vehicle and vehicle gear shifting method |
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Application publication date: 20180223 |