CN106641236A - AMT hydraulic gear shifting execution system having mechanical positioning and centering functions - Google Patents
AMT hydraulic gear shifting execution system having mechanical positioning and centering functions Download PDFInfo
- Publication number
- CN106641236A CN106641236A CN201710045908.8A CN201710045908A CN106641236A CN 106641236 A CN106641236 A CN 106641236A CN 201710045908 A CN201710045908 A CN 201710045908A CN 106641236 A CN106641236 A CN 106641236A
- Authority
- CN
- China
- Prior art keywords
- positioning
- piston bar
- valve body
- range piston
- centering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- F16H61/22—Locking of the control input devices
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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
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
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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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
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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
- F16H2306/00—Shifting
Abstract
The invention discloses an AMT hydraulic gear shifting execution system having mechanical positioning and centering functions. The system comprises a valve body; a plurality of piston holes are formed in the valve body; a gear shifting piston rod is mounted in each piston hole; a first oil cavity and a second oil cavity are formed between two ends of each gear shifting piston rod and the valve body; the positioning end of each gear shifting piston rod penetrates through the first oil cavity and is connected with a mechanical centering and positioning device; position sensors for detecting neutral positions of the gear shifting piston rods are mounted on the valve body; and interlocking devices are arranged among the gear shifting piston rods. The multiple gear shifting piston rods are integrated in one valve body and are positioned through the mechanical centering and positioning devices, the neutral positions are detected through the position sensors, the gear shifting piston rods are interlocked through the interlocking devices, the gear shifting action for multiple gears is realized under the control of reversing valves, the time for the gear shifting process is short, and meanwhile, the system has the relatively high control precision and working reliability and is simple in structure and easy to control.
Description
Technical field
The present invention relates to automotive transmission technical field, more particularly to a kind of AMT with machinery positioning and alignment function
Hydraulic shift execution system.
Background technology
The hydraulic gear-shifting execution system of AMT automatic transmission is mainly made up of the part such as hydraulic control circuit, hydraulic cylinder, is led to
Cross the motion of control piston rod to realize the self shifter of AMT, with arrangement convenience, simple structure, it is easy to control the features such as, in change
Fast device field is about wealthy application prospect.AMT gearshift work control accuracy and reliability be affect AMT work it is important because
Element, the control accuracy of hydraulic gear-shifting execution system and the raising of functional reliability are always the important of automatic transmission technical research
Problem.With control accuracy is high, reliable working performance feature hydraulic gear-shifting execution system to improve shift of transmission quality and
The aspects such as comfortableness play the role of important.
The content of the invention
The technical problem to be solved is to provide a kind of tool with higher control accuracy and functional reliability
There are the AMT hydraulic shift execution systems of machinery positioning and alignment function.
To solve above-mentioned technical problem, the technical scheme is that：A kind of AMT with machinery positioning and alignment function
Hydraulic shift execution system, including valve body, are provided with multiple piston holes being arranged in parallel on the valve body, each described piston hole
One range piston bar is inside installed, a gear shift operation handle is installed on each described range piston bar, each described gearshift
The first oil pocket and the second oil pocket, first oil pocket and second oil pocket are provided between the two ends of piston rod and the valve body
It is connected with fuel tank by a reversal valve respectively, the positioning end of the range piston bar passes through first oil pocket and connects organic
Tool alignment positioning device, is provided with shaft sealer, the valve between the mechanical alignment positioning device and first oil pocket
Position sensor for detecting the range piston bar bit positions is installed on body；It is provided between the range piston bar
Interlock；
The mechanical alignment positioning device is arranged on the end cap on the valve body, is sequentially installed with the end cap by fixed
The mechanical positioner and mechanical centering device of position axle connection.
As a kind of preferred technical scheme, the shaft sealer include be sleeved on the range piston bar and with institute
The axle sleeve that valve body is fixedly connected is stated, the inner surface setting of the axle sleeve has seal groove, in the seal groove sealing ring is provided with.
Used as a kind of preferred technical scheme, the interlock includes being arranged in the valve body and connecting adjacent pistons
The interlocking axis hole in hole, is provided with mutual lock shaft in the interlocking axis hole, the range piston pole face is equal to the side of the mutual lock shaft
Interlock slot is provided with, the interlocking pin-and-hole of connection both sides interlock slot is provided with the middle range piston bar, it is described mutual
Interlocking plunger is installed in lockpin hole.
Used as a kind of preferred technical scheme, the mechanical positioner includes the positioning lining being arranged in the end cap
Set, the positioning end end of the range piston bar is provided with the locating shaft stretched into the positioning bushing, the positioning lining
Multiple positioning arc grooves be arrangeding in parallel are provided with the inwall of set, are provided with the locating shaft and are matched somebody with somebody with the positioning arc groove
The place kick of conjunction, is provided with place kick extension adjustment device between the place kick and the locating shaft.
Used as a kind of preferred technical scheme, the place kick extension adjustment device includes being arranged on the locating shaft
Radial hole, is provided with two place kick in the radial hole, between two place kick retaining spring is provided with.
Used as a kind of preferred technical scheme, the mechanical centering device includes the centering pad being sleeved on the locating shaft
Plate, the end of the locating shaft is provided with centering pre-tightening apparatus, be provided with opposite directions on the locating shaft press up against it is described right
Spring base on middle pre-tightening apparatus and the centering backing plate, on the locating shaft between two spring bases centering is set with
Spring.
Used as a kind of preferred technical scheme, the centering pre-tightening apparatus include being arranged on the centering of the positioning shaft end
Screw, is sequentially installed with spring washer and pad, outside the pad between the nut and the locating shaft of the centering screw
Edge is pressed against on the adjacent spring base.
Used as a kind of preferred technical scheme, the gear shift operation handle includes selector fork or gearshift reversal means.
Used as a kind of preferred technical scheme, the reversal valve is two-position three-way electromagnetic proportioning valve.
As a kind of preferred technical scheme, three piston holes are provided with the valve body, peace in each described piston hole
Equipped with a range piston bar, the range piston bar includes the first range piston bar, the second range piston bar and the 3rd gearshift
Piston rod；
The left end of the first range piston bar is connected with the mechanical alignment positioning device and right-hand member is from the valve body
The gear shift operation handle is stretched out and is provided with, between the valve body and the first range piston bar on the outside of second oil pocket
Sealing ring is installed；
The right-hand member of the 3rd range piston bar is connected with the mechanical alignment positioning device and left end is from the valve body
The gear shift operation handle is stretched out and is provided with, between the valve body and the 3rd range piston bar on the outside of second oil pocket
Sealing ring is installed；
The left end of the second range piston bar is connected with the mechanical alignment positioning device and right-hand member ends in described
In the piston hole on the inside of two oil pockets, the gear shift operation handle is installed on the middle part of the second range piston bar.
As a result of above-mentioned technical proposal, a kind of AMT hydraulic shifts with machinery positioning and alignment function perform system
System, including valve body, are provided with multiple piston holes being arranged in parallel on the valve body, be provided with one in each described piston hole and change
Gear piston rod, a gear shift operation handle is installed on each described range piston bar, the two ends of each range piston bar with
The first oil pocket and the second oil pocket are provided between the valve body, first oil pocket and second oil pocket are changed respectively by one
It is connected with fuel tank to valve, the positioning end of the range piston bar passes through first oil pocket and is connected with mechanical centering positioning dress
Put, shaft sealer is installed between the mechanical alignment positioning device and first oil pocket, use is installed on the valve body
In the position sensor for detecting the range piston bar bit positions；Interlock is provided between the range piston bar；Will
Multiple range piston bars are integrated in a valve body and carry out position positioning to piston rod of shifting gears using mechanical alignment positioning device,
And middle position detection is carried out by position sensor, the interlocking between range piston bar is realized by interlock, in reversal valve
The gear shifting action of multiple gears is realized under control, the shift process time is short, while with higher control accuracy and reliable operation
Property, it is simple structure, easy to control.
Description of the drawings
The following drawings is only intended in schematic illustration and explanation is done to the present invention, is not delimit the scope of the invention.Wherein：
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the A-A sectional views in Fig. 1；
Fig. 3 is the B-B sectional views in Fig. 1；
Fig. 4 is the C-C sectional views in Fig. 1；
Fig. 5 is the D-D sectional views in Fig. 2；
Fig. 6 is the structural representation of the hydraulic gear-shifting execution system that the embodiment of the present invention is provided with gearshift reversal means；
In figure：1- valve bodies；21- the first range piston bars；22- the second range piston bars；The range piston bars of 23- the 3rd；31-
First oil pocket；The oil pockets of 32- second；33- two-position three-way electromagnetic proportioning valves；41- axle sleeves；42- sealing rings；43- end caps；44- is positioned
Bushing；45- place kick；46- locating shafts；47- positions arc groove；48- radial holes；49- retaining springs；5- position sensors；61-
Mutual lock shaft；62- interlock slots；63- interlocking plungers；64- selector forks；65- gearshift reversal meanss；71- centering backing plates；72- spring bases；73-
Centralizing spring；74- centering screws；75- spring washers；76- pads.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is expanded on further.In the following detailed description, only by explanation
Mode describes some one exemplary embodiments of the present invention.Undoubtedly, one of ordinary skill in the art will recognize,
In the case of without departing from the spirit and scope of the present invention, can be being repaiied to described embodiment with a variety of modes
Just.Therefore, accompanying drawing and description are inherently illustrative, rather than for limiting scope of the claims.
As depicted in figs. 1 and 2, a kind of AMT hydraulic shift execution systems with machinery positioning and alignment function, including valve
Body 1, is provided with multiple piston holes being arranged in parallel on the valve body 1, a range piston is provided with each described piston hole
Bar simultaneously forms one group of hydraulic cylinder, a gear shift operation handle is provided with each described range piston bar, as shown in fig. 6, described change
Gear lever includes that selector fork 64 or gearshift reversal means 65, the i.e. present invention can also adopt the installation gearshift on range piston bar to dial
The method for referring to 65 carrys out shift fork bar, and then indirectly shift fork completes gear shifting action.The two ends of each range piston bar
32 points of the first oil pocket 31 and the second oil pocket 32, first oil pocket 31 and second oil pocket are provided between the valve body 1
Not Tong Guo a reversal valve be connected with fuel tank, the reversal valve be two-position three-way electromagnetic proportioning valve 33, the range piston bar
Positioning end through first oil pocket 31 and being connected with mechanical alignment positioning device, the mechanical alignment positioning device and described the
Shaft sealer is installed between one oil pocket 31, the shaft sealer include being sleeved on the range piston bar and with it is described
The axle sleeve 41 that valve body 1 is fixedly connected, the inner surface setting of the axle sleeve 41 has seal groove, and in the seal groove sealing ring is provided with
42, the position sensor 5 for detecting the range piston bar bit positions is installed on the valve body 1；The range piston
Interlock is provided between bar.
As shown in Fig. 2 the mechanical alignment positioning device is arranged on the end cap 43 on the valve body 1, in the end cap 43
The mechanical positioner and mechanical centering device connected by locating shaft 46 is sequentially installed with, the mechanical positioner includes peace
The positioning bushing 44 being mounted in the end cap 43, the positioning end end of the range piston bar is provided with stretches into the positioning bushing
The locating shaft 46 in 44, on the inwall of the positioning bushing 44 multiple positioning arc grooves 47 be arrangeding in parallel, institute are provided with
State and the place kick 45 coordinated with the positioning arc groove 47, the place kick 45 and the place kick 45 are installed on locating shaft 46
Place kick extension adjustment device is installed, the place kick extension adjustment device includes being arranged on the locating shaft 46 between seat
Radial hole 48, two place kick 45 are installed in the radial hole 48, positioning bullet is installed between two place kick 45
Spring 49；
As shown in Fig. 2 the mechanical centering device includes the centering backing plate 71 being sleeved on the locating shaft 46, it is described fixed
The end of position axle 46 is provided with centering pre-tightening apparatus, is provided with opposite directions on the locating shaft 46 and presses up against the centering pretension
Spring base 72 on device and the centering backing plate 71, it is right to be set with the locating shaft 46 between two spring bases 72
Middle spring 73.The centering pre-tightening apparatus include being arranged on the centering screw 74 of the end of the locating shaft 46, the centering screw
Spring washer 75 and pad 76 are sequentially installed between 74 nut and the locating shaft 46, the outer rim of the pad 76 is pressed against
On the adjacent spring base 72.
As shown in figure 5, the interlock includes being arranged in the valve body 1 and connecting the mutual lock shaft in adjacent pistons hole
Hole, is provided with mutual lock shaft 61 in the interlocking axis hole, the range piston pole face to the side of the mutual lock shaft 61 is provided with
Interlock slot 62, is provided with the interlocking pin-and-hole of connection both sides interlock slot 62, the interlocking on the middle range piston bar
Interlocking plunger 63 is installed in pin-and-hole；In the present embodiment, as shown in Figure 2, Figure 3 and Figure 4, the range piston bar is changed including first
Gear piston rod 21, the second range piston bar 22 and the 3rd range piston bar 23；The both sides of the second range piston bar 22 are provided with
Interlock slot 62, the first range piston bar 21 and the 3rd range piston bar 23 are provided with mutually towards the side of the second range piston bar 22
Locked groove 62, is provided with the interlocking pin-and-hole on the second range piston bar 22.
Specifically, as shown in figure 1, being provided with three piston holes on the valve body 1, in each described piston hole one is provided with
Individual range piston bar, as shown in Figure 2, Figure 3 and Figure 4, the range piston bar includes that the first range piston bar 21, second is shifted gears and lives
The range piston bar 23 of stopper rod 22 and the 3rd；The left end of the first range piston bar 21 is connected with the mechanical alignment positioning device
And right-hand member stretches out and is provided with the gear shift operation handle, the He of the valve body 1 in the outside of second oil pocket 32 from the valve body 1
Sealing ring 42 is installed between the first range piston bar 21；The right-hand member of the 3rd range piston bar 23 is connected with described
Mechanical alignment positioning device and left end stretch out and are provided with the gear shift operation handle, second oil pocket 32 from the valve body 1
Sealing ring 42 is installed between the valve body 1 and the 3rd range piston bar 23 in outside；The second range piston bar
22 left end is connected with the mechanical alignment positioning device and right-hand member ends in the piston hole of the inner side of second oil pocket 32
Interior, the gear shift operation handle is installed on the middle part of the second range piston bar 22.
Operation principle：
1st, neutral gear position working condition
In embodiment as shown in Figure 2, place kick 45 is pressed into retaining spring 49 the positioning arc groove 47 of positioning bushing 44
In, the first range piston bar 21 is in centre position, i.e. First piston bar and is in neutral position；The big end of two spring bases 72
Face is abutted against on end cap 43 and centering backing plate 71, and the mechanical centering device is in Shaft alignment state, the detection of position sensor 5 first
Range piston axle is in middle position state, the first oil pocket 31 of the described two control of two-position three-way electromagnetic proportioning valves 33 hydraulic cylinders and the
Two oil pockets 32 are respectively communicated with fuel tank, and the first range piston bar 21 is in poised state.
2nd, put into gear work
When two two-position three-way electromagnetic proportioning valves control respectively the oil-feed of the second oil pocket 32, the oil extraction of the first oil pocket 31 of hydraulic cylinder
When, the first range piston bar 21, to left movement, drives selector fork 64 to left movement under oil pressure promotion, overcomes retaining spring 49
Pressure to two place kick 45, place kick 45 departs from the interfix arc groove 47 of positioning bushing 44 and along positioning bushing 44
Inwall to left movement, compress centralizing spring 73, until the first range piston bar 21 reaches left side extreme position (position of putting into gear),
Place kick 45 is snapped in the positioning arc groove 47 of the positioning left end of bushing 44, completes to put into gear and realize positioning.
When two two-position three-way electromagnetic proportioning valves control respectively the oil-feed of the first oil pocket 31, the oil extraction of the second oil pocket 32 of hydraulic cylinder
When, the first range piston bar 21 is moved right in the case where the oil pressure of the first oil pocket 31 and centralizing spring 73 are promoted, and drives place kick 45
The left positioner arc groove 47 and the inwall along positioning bushing 44 for departing from positioning bushing 44 is moved right, until place kick 45 is arrived
Up in the interfix arc groove 47 of positioning bushing 44, now centralizing spring 73 is in Shaft alignment state, the detection of position sensor 5 the
One range piston bar 21 is in middle position state, and the first oil pocket 31 and the second oil pocket 32 are respectively communicated with fuel tank, the first range piston bar
21 are in neutral position, and gear is plucked in realization.
The operation principle of each range piston bar is identical, will not be described here.
3rd, gear interlocking
As shown in figure 5, work as having one in the first range piston bar 21, the second range piston bar 22 and the 3rd range piston bar 23
When individual range piston bar carries out gearshift work, the range piston bar will promote mutual lock shaft 61 to snap in two other range piston bar
In interlock slot 62 so as to which its two range piston bar is stuck, and reaches interlocking effect.
Description of the invention is given for the sake of example and description, and is not exhaustively or by the present invention
It is limited to disclosed form.Many modifications and variations are for the ordinary skill in the art obvious.Select and retouch
It is to more preferably illustrate the principle and practical application of the present invention, and one of ordinary skill in the art is managed to state embodiment
The present invention is solved so as to design the various embodiments with various modifications for being suitable to special-purpose.
Claims (10)
1. a kind of AMT hydraulic shift execution systems with machinery positioning and alignment function, including valve body, it is characterised in that：Institute
State and multiple piston holes being arranged in parallel are provided with valve body, a range piston bar is installed in each described piston hole, each
One gear shift operation handle is installed on the range piston bar, is set between the two ends of each range piston bar and the valve body
The first oil pocket and the second oil pocket are equipped with, first oil pocket and second oil pocket are connected respectively by a reversal valve with fuel tank
Connect, the positioning end of the range piston bar passes through first oil pocket and is connected with mechanical alignment positioning device, and the machinery is right
Shaft sealer is installed between middle positioner and first oil pocket, is provided with the valve body for detecting the gearshift
The position sensor of piston rod bit positions；Interlock is provided between the range piston bar；
The mechanical alignment positioning device is arranged on the end cap on the valve body, is sequentially installed with by locating shaft in the end cap
The mechanical positioner and mechanical centering device of connection.
2. there is as claimed in claim 1 the AMT hydraulic shift execution systems of machinery positioning and alignment function, its feature exists
In：The shaft sealer includes being sleeved on the axle sleeve being fixedly connected on the range piston bar and with the valve body, the axle
The inner surface setting of set has seal groove, and in the seal groove sealing ring is provided with.
3. there is as claimed in claim 1 the AMT hydraulic shift execution systems of machinery positioning and alignment function, its feature exists
In：The interlock includes being arranged in the valve body and connecting the interlocking axis hole in adjacent pistons hole, in the interlocking axis hole
Mutual lock shaft is installed, the range piston pole face to the side of the mutual lock shaft is provided with interlock slot, positioned at described in centre
The interlocking pin-and-hole of connection both sides interlock slot is provided with range piston bar, interlocking plunger is installed in the interlocking pin-and-hole.
4. there is as claimed in claim 1 the AMT hydraulic shift execution systems of machinery positioning and alignment function, its feature exists
In：The mechanical positioner includes the positioning bushing being arranged in the end cap, the positioning end end of the range piston bar
The locating shaft stretched into the positioning bushing is installed, multiple be arrangeding in parallel is provided with the inwall of the positioning bushing
Positioning arc groove, is provided with and place kick that the positioning arc groove coordinates, the place kick and described fixed on the locating shaft
Place kick extension adjustment device is installed between the axle of position.
5. there is as claimed in claim 4 the AMT hydraulic shift execution systems of machinery positioning and alignment function, its feature exists
In：The place kick extension adjustment device includes the radial hole being arranged on the locating shaft, and in the radial hole two are provided with
Individual place kick, between two place kick retaining spring is provided with.
6. there is as claimed in claim 1 the AMT hydraulic shift execution systems of machinery positioning and alignment function, its feature exists
In：The mechanical centering device includes being sleeved on centering backing plate on the locating shaft, and it is right that the end of the locating shaft is provided with
Middle pre-tightening apparatus, are provided with opposite directions on the locating shaft and press up against on the centering pre-tightening apparatus and the centering backing plate
Spring base, on the locating shaft between two spring bases centralizing spring is set with.
7. there is as claimed in claim 6 the AMT hydraulic shift execution systems of machinery positioning and alignment function, its feature exists
In：The centering pre-tightening apparatus include being arranged on the centering screw of the positioning shaft end, the nut of the centering screw and institute
State and be sequentially installed between locating shaft spring washer and pad, the outer rim of the pad is pressed against on the adjacent spring base.
8. there is as claimed in claim 1 the AMT hydraulic shift execution systems of machinery positioning and alignment function, its feature exists
In：The gear shift operation handle includes selector fork or gearshift reversal means.
9. there is as claimed in claim 1 the AMT hydraulic shift execution systems of machinery positioning and alignment function, its feature exists
In：The reversal valve is two-position three-way electromagnetic proportioning valve.
10. the AMT hydraulic shifts with machinery positioning and alignment function as described in claim 1 to 9 any claim are held
Row system, it is characterised in that：Three piston holes are provided with the valve body, a gearshift are installed in each described piston hole and are lived
Stopper rod, the range piston bar includes the first range piston bar, the second range piston bar and the 3rd range piston bar；
The left end of the first range piston bar is connected with the mechanical alignment positioning device and right-hand member stretches out from the valve body
And the gear shift operation handle is installed, the peace between the valve body and the first range piston bar on the outside of second oil pocket
Equipped with sealing ring；
The right-hand member of the 3rd range piston bar is connected with the mechanical alignment positioning device and left end stretches out from the valve body
And the gear shift operation handle is installed, the peace between the valve body and the 3rd range piston bar on the outside of second oil pocket
Equipped with sealing ring；
The left end of the second range piston bar be connected with the mechanical alignment positioning device and right-hand member to end in described second oily
In the piston hole on the inside of chamber, the gear shift operation handle is installed on the middle part of the second range piston bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710045908.8A CN106641236A (en) | 2017-01-22 | 2017-01-22 | AMT hydraulic gear shifting execution system having mechanical positioning and centering functions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710045908.8A CN106641236A (en) | 2017-01-22 | 2017-01-22 | AMT hydraulic gear shifting execution system having mechanical positioning and centering functions |
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| CN106641236A true CN106641236A (en) | 2017-05-10 |
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| CN201710045908.8A Pending CN106641236A (en) | 2017-01-22 | 2017-01-22 | AMT hydraulic gear shifting execution system having mechanical positioning and centering functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765220A (en) * | 2020-06-03 | 2020-10-13 | 浙江日发精密机床有限公司 | Three-speed gear box structure |
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| CN103912533A (en) * | 2014-04-01 | 2014-07-09 | 上海诺玛液压系统有限公司 | Spool unit for proportional reversing valve |
| CN203822735U (en) * | 2014-04-01 | 2014-09-10 | 上海诺玛液压系统有限公司 | Proportional reversing valve core assembly |
| CN204573063U (en) * | 2015-04-23 | 2015-08-19 | 中国重汽集团大同齿轮有限公司 | Multi-speed gear box mono-lever control mechanism |
| CN104806708A (en) * | 2015-05-06 | 2015-07-29 | 横店集团英洛华电气有限公司 | Automatic gear shift mechanism of electric tricycle |
| CN206449190U (en) * | 2017-01-22 | 2017-08-29 | 山东科技大学 | A kind of AMT hydraulic shifts executing agency with machinery positioning and alignment function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765220A (en) * | 2020-06-03 | 2020-10-13 | 浙江日发精密机床有限公司 | Three-speed gear box structure |
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Application publication date: 20170510 |