CN102954206B - Packaging type Pneumatic shift operating system - Google Patents
Packaging type Pneumatic shift operating system Download PDFInfo
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- CN102954206B CN102954206B CN201210504868.6A CN201210504868A CN102954206B CN 102954206 B CN102954206 B CN 102954206B CN 201210504868 A CN201210504868 A CN 201210504868A CN 102954206 B CN102954206 B CN 102954206B
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Abstract
The present invention provides a kind of packaging type Pneumatic shift operating system, including: air-filtering actuator, gas path control valve, handle valve, double air controlled list H valve, air cylinder of speed changer, also include two O, described double air controlled list H valve is paid on described air cylinder of speed changer with screw lock, the low gear of described double air controlled list H valve controls to bring out the low gear air inlet of mouth and described air cylinder of speed changer and is tightly connected with described O, and the high gear of described double air controlled list H valve controls to bring out the high gear air inlet of mouth and described air cylinder of speed changer and is tightly connected with described O。The present invention provides a kind of simple and compact for structure, the shift control system of processing ease so that the fault rate of Pneumatic shift operating system reduces, longer service life。
Description
Technical field
The present invention relates to a kind of vehicle shift system, be specifically related to a kind of vehicle packaging type Pneumatic shift operating system。
Background technology
Along with highway in China carrier management constantly standardization, it is efficient, the epoch of lean running arrive, this require industry will by Lifting Convey efficiency, reduce vehicle body deadweight, and the measure such as fuel consumption level reducing the unit volume of goods transported realizes the higher level of profitability。And highway freight user requires the attributes such as heavy truck possesses high-speed overload, lightweight, fuel economy is good, the rate of attendance is high, product demand shifts to high-endization gradually。It is expected that the heavy truck product of lift-launch high-power, more gear gearbox will increasingly become main flow, such as 16 gears, 20 gears, 24 shift transmissions。
Existing shift control system is controlled the two-position five-way list H valve of air cylinder of speed changer and the gas path control valve of bi-bit bi-pass by one and the shift handle valve etc. of two-position three way form and realizes what secondary box of gearbox was shifted gears, although this Pneumatic shift operating system connects simple, but necessarily require the handle valve preliminary election of user elder generation, gear shift operation again, if user first operates gearshift, handle valve preliminary election again, it may appear that collaborate inside air cylinder of speed changer, causes variator high to low gear switching failure。This cover system is not owing to, after variator changes to gear, having high pressure gas in air cylinder of speed changer, it is impossible to make piston be maintained under the thrust of high pressure gas on high gear or low gear position, hence in so that variator easy off-gear in vehicle travel process。Although can pass through at air cylinder of speed changer and auxiliary box synchronizer band self-locking device, but speed changer structure is complicated, increase manufacturing cost；Original handle valve is entirely two-position three way valve arrangement, it is used for controlling one end gas control end of single H valve, owing to this valve is without memory function, so when air cylinder of speed changer is after entering high gear district or low gear district, owing to gas path control valve can disconnect source of the gas, air cylinder of speed changer loses high pressure gas and can not stop in high gear or low gear position, existing technology is by increasing self-locking mechanism on the shift fork axle of air cylinder of speed changer, although the effect of self-locking also can be reached, but speed changer structure can be made to complicate, increase manufacturing cost。Therefore, the Pneumatic shift operating system of prior art exists some technical problems anxious to be resolved。
Summary of the invention
For drawbacks described above, it is an object of the invention to provide a kind of simple in construction and improve the service life of product, reducing fault rate, to solve the technical problem of the Pneumatic shift operating system of prior art。
For achieving the above object, present invention employs following technical scheme:
A kind of packaging type Pneumatic shift operating system, including: an air-filtering actuator, a double air controlled list H valve, a gas path control valve, one handle valve and an air cylinder of speed changer, annexation therein is: the input of described air-filtering actuator is connected with car load source of the gas;Described air-filtering actuator connects described double air controlled list H valve and described gas path control valve respectively;Described gas path control valve is connected with described handle valve;Described handle valve is connected with described double air controlled list H valve;Described double air controlled list H valve is connected with described air cylinder of speed changer;Additionally include two O, described double air controlled list H valve is paid on described air cylinder of speed changer with screw lock, the low gear of described double air controlled list H valve controls to bring out the low gear air inlet of mouth and described air cylinder of speed changer and is tightly connected with described O, and the high gear of described double air controlled list H valve controls to bring out the high gear air inlet of mouth and described air cylinder of speed changer and is tightly connected with described O。
According to the packaging type Pneumatic shift operating system described in the embodiment of the present invention, described double air controlled list H valve includes: a valve body, a spool, two pistons, two V-type circles and a self-locking device；Wherein: described spool is assemblied among described valve body；A piston is respectively assembled at the two ends of described spool, and on described piston sheathed described V-type circle；Described self-locking device includes a steel ball, a spring and a holding screw, described holding screw lock is paid in the screw hole of described valve body and vertical with described spool, one end of described spring is connected with described holding screw, the other end of described spring is connected with described steel ball, offering, corresponding to described steel ball, two grooves being parallel to spool on described spool, described steel ball is mobile link between two grooves。
According to the packaging type Pneumatic shift operating system described in the embodiment of the present invention, described air cylinder of speed changer includes: cylinder body, high to low gear piston, limited block and shift fork axle, wherein: described limited block and described high to low gear piston are set in parallel in described cylinder interior successively and are connected with described shift fork axle successively, the cavity of described air cylinder of speed changer is divided into two cavitys by described high to low gear piston, the cavity of described limited block side is low gear chamber, the cavity of other side is high gear chamber, described low gear air inlet communicates with described low gear chamber, and described high gear air inlet communicates with described high gear chamber。
According to the packaging type Pneumatic shift operating system described in the embodiment of the present invention, described handle valve is two-position five-way formula shift handle valve。
Owing to have employed above technical characteristic so that the present invention has such advantages as compared to prior art and good effect:
The first, the design of the present invention is simple and compact for structure, and two outlets of double air controlled list H valve directly adopt the board-like O that adds to be connected with the interface of air cylinder of speed changer, save 4 jointings and trachea, decrease leakage point, make connection more reliable, reduce production hour, saved cost；
The second, the Pneumatic shift operating system of the present invention, thoroughly solve user and be likely to occur the problem that the air cylinder of speed changer not occurred by predetermined operation is collaborated, it also avoid the off-gear problem of auxiliary box synchronizer simultaneously, and air cylinder of speed changer and lock unit need not be designed to the mechanism arrangement with self-locking, reduce variator manufacturing cost and longer service life；
3rd, the air cylinder of speed changer of the present invention does not carry self-locking mechanism, and shift fork axle is not subject to side force in motor process, reduces the operational failure rate such as cylinder leakage tester, scuffing of cylinder bore。
Certainly, implement any one specific embodiment of present invention, might not have the technique effect of all of the above simultaneously。
Accompanying drawing explanation
Fig. 1 is present configuration gas circuit schematic diagram；
Fig. 2 is double air controlled list H valve arrangement schematic diagram 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 valve of the present invention and air cylinder of speed changer connection diagram；
Fig. 6 is the cutaway view of air cylinder of speed changer。
Detailed description of the invention
For ease of understanding, below in conjunction with accompanying drawing, presently preferred embodiments of the present invention is described in further detail。
Refer to Fig. 1 and Fig. 2, the Pneumatic shift operating system of a kind of vehicle, including: air-filtering actuator 10, double air controlled list H valve 20, gas path control valve 30, handle valve 40 and air cylinder of speed changer 50, annexation therein is:
The input of air-filtering actuator 10 is connected with car load source of the gas, and it is 7-8Bar that the input at air-filtering actuator 10 accepts compression air pressure, and the outfan output pressure of air-filtering actuator 10 is 5.5-6Bar；It addition,
The outfan of air-filtering actuator 10 connects the first input end 213 of double air controlled list H valve 20 and the input of gas path control valve 30 respectively,
And the outfan of gas path control valve 30 is connected with the input of handle valve 40, form gas circuit A；
First outfan of handle valve 40 connects the first air inlet 211 of double air controlled list H valve 20, forms gas circuit B；
Second outfan of handle valve 40 connects the second air inlet 212 of double air controlled list H valve 20, forms gas circuit C；
The low gear of double air controlled list H valve 20 controls to bring out mouth 214 and is connected with the low gear air inlet 55 of air cylinder of speed changer 50,
The high gear of double air controlled list H valve 20 controls to bring out mouth 215 and 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 principle with self-locking of list H valve own; and on spool, it is further added by self-locking mechanism, reaches the protection of double self locking, under this scheme; described double air controlled list H valve 20 includes: valve body 21, spool 23, two V-type circles 24 of 22, two pistons and self-locking device 25; in the present embodiment, the quantity of self-locking device 25 is two, but can not be used for limiting this patent；Wherein the annexation of part is as follows: described spool 22 is assemblied among described valve body 21；
A piston 23 is respectively assembled at the two ends of described spool 22, and on described piston 23 sheathed described V-type circle 24；
Please refer to Fig. 3, each self-locking device 25 includes steel ball 251, spring 252 and a holding screw 253 simultaneously,
Described holding screw 253 lock is paid in the screw hole of described valve body 21 and vertical with described spool 22,
One end of described spring 252 is connected with described holding screw 253,
The other end of described spring 252 is connected with described steel ball 251,
Described spool 22 offers, corresponding to described steel ball 251, two grooves 221 being parallel to spool 22, described steel ball 251 is at 221 mobile links of two grooves, in the present embodiment, the quantity of self-locking device 25 is two, so groove 221 two row altogether that corresponding steel ball 251 is offered, often show two grooves 221。At this to illustrate that, double air controlled list H valve 20 is made up of above part, additionally on the valve body 21 of double air controlled list H valve, it is further opened with some pores, is first air inlet the 211, second air inlet 212, first input end 213 respectively, low gear controls to bring out mouth 214, high gear controls to bring out mouth 215, low gear controls leakage port 216 and high gear and controls leakage port 217。
First air inlet 211 and the second air inlet 212 are separately positioned on the valve body 21 at spool 22 two ends, when high pressure gas is come in from the first air inlet 211, spool 22 right direction is promoted to move, and when high pressure gas is come in from the second air inlet 212, spool 22 left direction is promoted to move, now, piston 23 and V-type circle 24 have played airtight effect, high pressure gas will not disorderly be gone here and there, when spool 22 moves left and right, steel ball 251 in groove 221 is left groove 221 by the pressure of spool 22, move between two grooves 221, after arriving another groove 221, spool 22 is subject to spacing no longer moving, and steel ball 251 is by the pressure entrance groove 221 of spring 252, when being not greater than the strength of spring 252, steel ball 251 is withstood in groove 221 by the pressure of spring 252, spool 22 is fixed in valve body 21 will not move, reach the function of locking。
When high pressure gas is come in from the first air inlet 211, promoting spool 22 right direction to move, now first input end 213 and high gear control to bring out mouth 215 and are connected ventilation, and low gear controls to bring out mouth 214 and low gear control leakage port 216 connection is ventilated；When high pressure gas is come in from the second air inlet 212, promoting spool 22 left direction to move, now first input end 213 and low gear control to bring out mouth 214 and are connected ventilation, and high gear controls to bring out mouth 215 and high gear control leakage port 217 connection is ventilated。
Then, refer to Fig. 4 and Fig. 5, the another kind of embodiment of the present invention, two outlets of double air controlled list H valve 20 directly adopt the board-like O 57 that adds to be connected with the interface of air cylinder of speed changer 50, described double air controlled list H valve 20 is paid on described air cylinder of speed changer 50 with screw lock, the present embodiment is pay with three screw locks, but can not be used for limiting this patent, the low gear of described double air controlled list H valve 20 controls to bring out the low gear air inlet 55 of mouth 214 and described air cylinder of speed changer 50 and is tightly connected with O 57, the high gear of described double air controlled list H valve 20 controls to bring out the high gear air inlet 56 of mouth 215 and described air cylinder of speed changer 50 and is tightly connected with O 57。
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, shift fork axle 54, low gear air inlet 55 and high gear air inlet 56, wherein: described limited block 53 and described high to low gear piston 52 are set in parallel in described cylinder body 51 inside successively and are connected with described shift fork axle 54 successively, the cavity of described air cylinder of speed changer 50 is divided into two cavitys by described high to low gear piston 52, the cavity of described limited block 53 side is low gear chamber, the cavity of other side is high gear chamber, described low gear air inlet 55 communicates with described low gear chamber, described high gear air inlet 56 communicates with described high gear chamber。Described limited block 53 is used to limit the limit that high to low gear piston 52 is advanced to the left, ensures that low gear air inlet 55 communicates with low gear chamber air-flow。
Comprehensive, when high pressure gas is come in from the first air inlet 211, spool 22 right direction is promoted to move, now first input end 213 and high gear control to bring out mouth 215 and are connected ventilation, high pressure gas enters from the high gear air inlet 56 air cylinder of speed changer 50, promotes high to low gear piston 52 to left movement, drives shift fork axle 54 to change to high gear to left movement, and now low gear controls to bring out mouth 214 and low gear and controls leakage port 216 and connect ventilation, from low gear chamber, gas out is thus discharged into air；And when high pressure gas is come in from the second air inlet 212, spool 22 left direction is promoted to move, now first input end 213 and low gear control to bring out mouth 214 and are connected ventilation, high pressure gas enters from the low gear air inlet 55 air cylinder of speed changer 50, high to low gear piston 52 is promoted to move right, driving shift fork axle 54 to move right and change to low gear, and now high gear controls to bring out mouth 215 and high gear controls leakage port 217 and connects ventilation, from high gear chamber, gas out is thus discharged into air。
Additionally saying, the handle valve 40 of present invention design is two-position five-way formula shift handle valve 40, is used for controlling double air controlled list H valve 20 and then controlling air cylinder of speed changer 50, so that air cylinder of speed changer 50 does not need self-locking device, reduces the cost of manufacture of variator。
The present embodiment is operated in the following manner:
In main gas circuit, from the 7-8Bar pressure-air of car load source of the gas after air-filtering actuator 10, stream pressure drops to about 5.5-6Bar。
When high gear control to bring out mouth 215 open time, high pressure gas will enter from the high gear air inlet 56 on air cylinder of speed changer 50, promotes high to low gear piston 52 to left movement, drives shift fork axle 54 to change to high gear to left movement；
When low gear control to bring out mouth 214 open time, high pressure gas will enter from the low gear air inlet 55 on air cylinder of speed changer 50, promotes high to low gear piston 52 to move right, and drives shift fork axle 54 to move right and change to low gear。
Controlling in gas circuit, handle valve 40 is a two-position five-way formula shift handle valve 40, and two of two QI KOU and double air controlled list H valve 20 control gas interfaces and are connected, is each responsible for opening the high gear of double air controlled list H valve 20 and controls to bring out mouth 215 and low gear control brings out mouth 214。
When gas path control valve 30 in an ON state: now high voltage control gas comes handle valve 40 through gas circuit A, and handle valve 40 controls the high and low gear of double air controlled list H valve 20 respectively by gas circuit B and C and controls to bring out opening or closing of mouth 214；When gas circuit B ventilates, high gear controls to bring out mouth 215 and open, and the high gear chamber entering air cylinder of speed changer 50 from high gear air inlet 56 is promoted high to low gear piston 52 to left movement by the high pressure gas come through air-filtering actuator 10, drives shift fork axle 54 to left movement。Otherwise, when gas circuit C ventilates, low gear controls to bring out mouth 214 and opens, and the low gear chamber entering air cylinder of speed changer 50 from low gear air inlet 55 is promoted high to low gear piston 52 to move right by the high pressure gas come through air-filtering actuator 10, drives shift fork axle 54 to move right。One end of shift fork axle 54 connects air cylinder of speed changer 50, and the other end of shift fork axle 54 connects auxiliary box synchronizer shift fork, is used for adjusting transmission gear。
The design of the present invention is the deficiency existed for prior art, a kind of Pneumatic shift operating system is provided, gas circuit is divided into main gas circuit and controls gas circuit, main gas circuit controls air cylinder of speed changer 50 by a double air controlled list H valve 20 with self-locking mechanism, control the gas circuit gas path control valve 30 by two-position three way, outlet connects the handle valve 40 of two-position five-way, and handle valve 40 liang outlet connects the gas control end of double air controlled list H valve 20 respectively。Thoroughly solve user and be likely to occur the problem that the air cylinder of speed changer 50 not occurred by predetermined operation is collaborated, it also avoid the off-gear problem of auxiliary box synchronizer simultaneously, and air cylinder of speed changer 50 and lock unit need not be designed to the mechanism arrangement with self-locking, reduce variator manufacturing cost；Utilize the principle with self-locking of double air controlled list H valve 20 own, and be further added by self-locking mechanism on spool 22, reach the protection of double self locking。
Additionally, board-like it is connected plus O 57 by the outlet of 20 liang of double air controlled list H valve is directly adopted with the interface of air cylinder of speed changer 50, by 3 screws, double air controlled list H valve 20 is arranged on air cylinder of speed changer 50 and saves 4 jointings and trachea, decrease leakage point, make connection more reliable, shorten the response time of air cylinder of speed changer 50 action, improve the shift time of speed-changer synchronizer, effectively reduce the fault of lock unit, prior decrease assembling, and maintenance is very convenient, cost is substantially reduced；Further, the present invention provides a kind of two-position five-way formula shift handle, is used for controlling double air controlled list H valve 20 to control air cylinder of speed changer 50, so that air cylinder of speed changer 50 does not need self-locking device, reduces the cost of manufacture of variator。
Owing to have employed above technical characteristic so that the present invention has such advantages as compared to prior art and good effect:
The first, the design of the present invention is simple and compact for structure, and two outlets of double air controlled list H valve directly adopt the board-like O that adds to be connected with the interface of air cylinder of speed changer, save 4 jointings and trachea, decrease leakage point, make connection more reliable, reduce production hour, saved cost；
The second, the Pneumatic shift operating system of the present invention, thoroughly solve user and be likely to occur the problem that the air cylinder of speed changer not occurred by predetermined operation is collaborated, it also avoid the off-gear problem of auxiliary box synchronizer simultaneously, and air cylinder of speed changer and lock unit need not be designed to the mechanism arrangement with self-locking, reduce variator manufacturing cost and longer service life；
3rd, the air cylinder of speed changer of the present invention does not carry self-locking mechanism, and shift fork axle is not subject to side force in motor process, reduces the operational failure rate such as cylinder leakage tester, scuffing of cylinder bore。
Certainly, implement any one specific embodiment of present invention, might not have the technique effect of all of the above simultaneously。
Invention preferred embodiment is only intended to help to set forth the present invention。Preferred embodiment does not have all of details of detailed descriptionthe, is not intended to the detailed description of the invention that this invention is only described yet。Obviously, the content according to this specification, can make many modifications and variations。These embodiments are chosen and specifically described to this specification, is to explain principles of the invention and practical application better, so that skilled artisan can utilize the present invention well。The present invention is limited only by the restriction of claims and four corner thereof and equivalent。Disclosed above is only presently preferred embodiments of the present invention, but is not used for limiting itself, any has the knack of those skilled in the art when without prejudice to spiritual connotation of the present invention, the impartial change done and changing, and all should be within the scope of the present invention。
Claims (4)
1. a packaging type Pneumatic shift operating system, it is characterized in that, including: an air-filtering actuator, a double air controlled list H valve, a gas path control valve, one handle valve and an air cylinder of speed changer, annexation therein is: the input of described air-filtering actuator is connected with car load source of the gas；Described air-filtering actuator connects described double air controlled list H valve and described gas path control valve respectively；Described gas path control valve is connected with described handle valve；Described handle valve is connected with described double air controlled list H valve；Described double air controlled list H valve is connected with described air cylinder of speed changer；Additionally include two O, described double air controlled list H valve is paid on described air cylinder of speed changer with screw lock, the low gear of described double air controlled list H valve controls to bring out the low gear air inlet of mouth and described air cylinder of speed changer and is tightly connected with described O, and the high gear of described double air controlled list H valve controls to bring out the high gear air inlet of mouth and described air cylinder of speed changer and is tightly connected with described O；
Described double air controlled list H valve includes a self-locking device, and described self-locking device includes a steel ball, a spring and a holding screw。
2. packaging type Pneumatic shift operating system as claimed in claim 1, it is characterised in that described double air controlled list H valve includes: a valve body, a spool, two pistons, two V-type circles；Wherein: described spool is assemblied among described valve body；
A piston is respectively assembled at the two ends of described spool, and on described piston sheathed described V-type circle；
Described holding screw lock is paid in the screw hole of described valve body and vertical with described spool,
One end of described spring is connected with described holding screw,
The other end of described spring is connected with described steel ball,
Offering, corresponding to described steel ball, two grooves being parallel to spool on described spool, described steel ball is mobile link between two grooves。
3. packaging type Pneumatic shift operating system as claimed in claim 2, it is characterized in that, described air cylinder of speed changer includes: cylinder body, high to low gear piston, limited block and shift fork axle, wherein: described limited block and described high to low gear piston are set in parallel in described cylinder interior successively and are connected with described shift fork axle successively, the cavity of described air cylinder of speed changer is divided into two cavitys by described high to low gear piston, the cavity of described limited block side is low gear chamber, the cavity of other side is high gear chamber, described low gear air inlet communicates with described low gear chamber, described high gear air inlet communicates with described high gear chamber。
4. packaging type Pneumatic shift operating system as claimed in claim 3, it is characterised in that described handle valve is two-position five-way formula shift handle valve。
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| CN201210504868.6A CN102954206B (en) | 2012-12-03 | 2012-12-03 | Packaging type Pneumatic shift operating system |
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| CN201210504868.6A CN102954206B (en) | 2012-12-03 | 2012-12-03 | Packaging type Pneumatic shift operating system |
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| CN102954206B true CN102954206B (en) | 2016-06-22 |
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| CN104832638B (en) * | 2015-05-12 | 2017-09-29 | 陕西法士特汽车传动集团有限责任公司 | A kind of band odd-side speed changer high and low shift changeover protection system and method |
| CN106051139A (en) * | 2016-08-12 | 2016-10-26 | 中国第汽车股份有限公司 | Pneumatic gear shifting control system assembly for auxiliary box of multi-gear transmission |
| CN110296232A (en) * | 2019-05-31 | 2019-10-01 | 陕西法士特齿轮有限责任公司 | A kind of list H gas circuit |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5329826A (en) * | 1992-01-22 | 1994-07-19 | Eaton Corporation | Enhanced automated splitter shifting with dual solenoid valves and auto fuel control |
| US5172604A (en) * | 1992-01-23 | 1992-12-22 | Eaton Corporation | Range section preexhaust |
| JP3739179B2 (en) * | 1997-06-13 | 2006-01-25 | 日産ディーゼル工業株式会社 | Cylinder device |
| US6092433A (en) * | 1998-06-09 | 2000-07-25 | Zf Meritor, L.L.C. | Small envelope range piston housing for electrical transmission range shift system |
| US6339973B1 (en) * | 2000-04-10 | 2002-01-22 | Eaton Corporation | Slave valve with integral syncho-saver logic |
| DE10249341A1 (en) * | 2002-10-23 | 2004-05-06 | Zf Friedrichshafen Ag | Hydraulic or pneumatic pressure regulation system forming part of the transmission system in truck or bus has pulse-width operated electro-magnetic valve |
| US7861612B2 (en) * | 2007-04-02 | 2011-01-04 | Eaton Corporation | Transmission range shift control with neutral position lock |
| CN101520089B (en) * | 2009-03-26 | 2012-07-04 | 上海汽车变速器有限公司 | Pneumatic shift operating system of secondary box of gearbox |
| CN201531589U (en) * | 2009-11-16 | 2010-07-21 | 中国重汽集团济南动力有限公司 | Air-controlling locking valve of speed changer |
| CN201891873U (en) * | 2010-11-29 | 2011-07-06 | 浙江科力汽车配件有限公司 | Reversing double-H valve of transmission case |
| CN201902546U (en) * | 2010-12-20 | 2011-07-20 | 浙江亿日气动科技有限公司 | Transmission cylinder |
| CN201934643U (en) * | 2011-03-04 | 2011-08-17 | 东风汽车有限公司 | Gas circuit control system for front auxiliary box of transmission |
| CN202252113U (en) * | 2011-09-06 | 2012-05-30 | 浙江科力车辆控制系统有限公司 | Novel double-H valve for transmission case of commercial vehicle |
| CN202251915U (en) * | 2011-09-20 | 2012-05-30 | 东风汽车有限公司 | AMT auxiliary box gear shifting cylinder assembly |
| CN202971866U (en) * | 2012-12-03 | 2013-06-05 | 浙江亿日气动科技有限公司 | Assembled pneumatic shifting operation system |
| CN202971867U (en) * | 2012-12-03 | 2013-06-05 | 浙江亿日气动科技有限公司 | Pneumatic gearshift operating system of transmission |
-
2012
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