CN206449189U - A kind of AMT hydraulic shifts executing agency with pressure limiting positioning function - Google Patents
A kind of AMT hydraulic shifts executing agency with pressure limiting positioning function Download PDFInfo
- Publication number
- CN206449189U CN206449189U CN201720083310.3U CN201720083310U CN206449189U CN 206449189 U CN206449189 U CN 206449189U CN 201720083310 U CN201720083310 U CN 201720083310U CN 206449189 U CN206449189 U CN 206449189U
- Authority
- CN
- China
- Prior art keywords
- pressure limiting
- positioning
- piston bar
- range piston
- valve
- 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.)
- Active
Links
Landscapes
- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model discloses a kind of AMT hydraulic shifts executing agency with pressure limiting positioning function, including valve body, multiple piston holes are provided with valve body, a range piston bar is installed in each piston hole, the first oil pocket and the second oil pocket are provided between the two ends of each range piston bar and valve body, the positioning end of range piston bar is through the first oil pocket and is connected with installation site sensor on mechanical alignment positioning device, valve body；Interlock is provided between range piston bar；Mechanical alignment positioning device includes being sequentially installed with the pressure limiting positioner and mechanical centering device connected by locating shaft in the end cap being arranged on valve body, end cap；The work of each range piston bar is controlled by solenoid-operated proportional pressure-reducing valve, interlocking between the positioning of each gear and gear is realized using pressure limiting positioner, mechanical interlock, the bit positions of range piston bar are detected by position sensor, the control of multiple gears can be realized and work is performed, with higher control accuracy and gearshift reliability.
Description
Technical field
The utility model is related to automotive transmission technical field, more particularly to a kind of AMT liquid with pressure limiting positioning function
Press gear-shifting actuating mechanism.
Background technology
The gear shifting actuating mechanism of AMT automatic transmission mainly has mechanical and fluid pressure type two types, and wherein fluid pressure type is changed
Gear perform structure has simple in construction, arrangement it is convenient, it is easy to control the features such as, be used widely in automatic transmission field.Mesh
The gearshift hydraulic actuating mechanism used in preceding AMT automatic transmission is by part groups such as hydraulic control circuit, hydraulic cylinder, gearshift reversal meanss
Into, and drive range is detected and controlled using sensing technology, while disclosure satisfy that control accuracy requirement, greatly reduce
Shifting operation complexity.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of with higher control accuracy and functional reliability
The AMT hydraulic shifts executing agency with pressure limiting positioning function.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of AMT liquid with pressure limiting positioning function
Press in the piston hole that multiple parallel arrangements are provided with gear-shifting actuating mechanism, including valve body, the valve body, each piston hole
One range piston bar is installed, a gear shift operation handle is installed on each range piston bar, each gearshift is lived
The first oil pocket and the second oil pocket, first oil pocket and second oil pocket point are provided between the two ends of stopper rod and the valve body
It is not connected by a solenoid-operated proportional pressure-reducing valve with oil sources, the positioning end of the range piston bar passes through first oil pocket and company
It is connected on mechanical alignment positioning device, the range piston bar between the mechanical alignment positioning device and first oil pocket and installs
There is the position sensor being provided with shaft sealer, the valve body for detecting the range piston bar bit positions；It is described
Interlock is provided between range piston bar；
The mechanical alignment positioning device includes the end cap being arranged on the valve body, is sequentially installed with the end cap logical
The pressure limiting positioner and mechanical centering device of locating shaft connection are crossed, the pressure limiting positioner includes being arranged in the end cap
Positioning bushing, the positioning end end of the range piston bar be provided with stretches into it is described positioning bushing in the locating shaft, institute
It is provided with multiple positioning arc grooves be arrangeding in parallel, the locating shaft and is provided with and the positioning on the inwall for stating positioning bushing
Plunger locking pressure limiting regulation device is installed in the positioning plunger that arc groove coordinates, the locating shaft.
As a kind of perferred 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, which has in seal groove, the seal groove, is provided with sealing ring.
As a kind of perferred technical scheme, the interlock includes being arranged in the valve body and connection adjacent pistons
Mutual lock shaft is installed, the side of the range piston pole face to the mutual lock shaft is equal in the interlocking axis hole in hole, the interlocking axis hole
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.
As a kind of perferred technical scheme, the plunger locking pressure limiting regulation device includes being arranged in the locating shaft
Valve-rod cavity, be provided with positioning valve rod, the locating shaft in the valve-rod cavity and be provided with the plunger vertical with the valve-rod cavity
Hole, the positioning plunger is arranged in the plunger hole, and the wedge coordinated with the positioning plunger is provided with the positioning valve rod
Retaining spring is installed in connected in star, the valve-rod cavity between the positioning valve rod and the mechanical centering device, it is described fixed
The other end of position valve rod is connected with the pressure limiting regulation and control oil cylinder being arranged in the range piston bar.
As a kind of perferred technical scheme, the pressure limiting regulation and control oil cylinder includes the limit being arranged in the range piston bar
Pressure limiting piston is installed in pumping cavity, the pressure limiting oil pocket, pressure limiting spring is installed between the pressure limiting piston and positioning valve rod,
One end of the pressure limiting spring is resisted against on the pressure limiting piston and the other end is resisted against the end of the locating shaft, the pressure limiting
Oil pocket is connected by pressure limiting control valve with the oil sources.
As a kind of perferred technical scheme, the pressure limiting control valve includes the two-position three way connected with the pressure limiting oil pocket
Solenoid directional control valve, the two position, three-way electromagnetic change valve is connected with pressure-reducing valve.
As a kind of perferred technical scheme, the mechanical centering device includes the centering pad being sleeved on the locating shaft
Plate, the end of the locating shaft be provided with centering pre-tightening apparatus, the locating shaft it is opposite be provided with press up against it is described right
Centering is set with the locating shaft between spring base on middle pre-tightening apparatus and the centering backing plate, two spring bases
Spring.
As a kind of perferred technical scheme, the centering pre-tightening apparatus includes being arranged on the centering of the positioning shaft end
Screw, is sequentially installed between the nut and the locating shaft of the centering screw outside spring washer and pad, the pad
Edge is pressed against on the adjacent spring base.
As a kind of perferred technical scheme, the gear shift operation handle includes selector fork or gearshift reversal means.
As a kind of perferred technical scheme, three piston holes are provided with the valve body, are pacified in each 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 out of described valve body
Stretch out and the gear shift operation handle is installed, 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 out of described valve body
Stretch out and the gear shift operation handle is installed, 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.
By adopting the above-described technical solution, a kind of AMT hydraulic shifts executing agency with pressure limiting positioning function, including
The piston hole of multiple parallel arrangements is provided with valve body, the valve body, a range piston is installed in each piston hole
A gear shift operation handle is installed on bar, each range piston bar, the two ends of each range piston bar and the valve
The first oil pocket and the second oil pocket are provided between body, first oil pocket and second oil pocket pass through a solenoid-operated proportional respectively
Pressure-reducing valve is connected with oil sources, and 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 on the range piston bar between the mechanical alignment positioning device and first oil pocket, it is described
Position sensor for detecting the range piston bar bit positions is installed on valve body；Set between the range piston bar
There is interlock；It is sequentially installed with end cap of the mechanical alignment positioning device on the valve body, the end cap logical
The pressure limiting positioner and mechanical centering device of locating shaft connection are crossed, the pressure limiting positioner includes being arranged in the end cap
Positioning bushing, the positioning end end of the range piston bar be provided with stretches into it is described positioning bushing in the locating shaft, institute
It is provided with multiple positioning arc grooves be arrangeding in parallel, the locating shaft and is provided with and the positioning on the inwall for stating positioning bushing
Plunger locking pressure limiting regulation device is installed in the positioning plunger that arc groove coordinates, the locating shaft；Depressurized by solenoid-operated proportional
Valve controls the work of each range piston bar, and use pressure limiting positioner, mechanical interlock realize positioning and the gear of each gear
The interlocking of interdigit, the bit positions of range piston bar are detected by position sensor, the control of multiple gears can be realized and hold
Row work, with higher control accuracy and gearshift reliability, can preferably improve and be lifted the gearshift of AMT automatic transmission
Quality.
Brief description of the drawings
The following drawings is only intended to, in doing the utility model schematic illustration and explanation, not limit model of the present utility model
Enclose.Wherein：
Fig. 1 is the structural representation of the utility model embodiment；
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 for the hydraulic gear-shifting executing agency that the utility model embodiment 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 change valves；34- solenoid-operated proportional pressure-reducing valves；41- axle sleeves；42- is sealed
Circle；43- end caps；44- positions bushing；45- positions plunger；46- locating shafts；47- positions arc groove；48- retaining springs；5- positions
Sensor；The mutual lock shafts of 61-；62- interlock slots；63- interlocking plungers；64- selector forks；65- gearshift reversal meanss；71- centering backing plates；72-
Spring base；73- centralizing springs；74- centering screws；75- spring washers；76- pads；81- positions valve rod；82- wedge-shaped impressions；
83- pressure limiting pistons；84- pressure limiting springs；85- pressure limiting oil pockets；86- pressure-reducing valves.
Embodiment
With reference to the accompanying drawings and examples, the utility model is expanded on further.In the following detailed description, only by saying
Bright mode describes some one exemplary embodiments of the present utility model.Undoubtedly, one of ordinary skill in the art can be with
Recognize, can be with a variety of modes to described in the case of without departing from spirit and scope of the present utility model
Embodiment is modified.Therefore, accompanying drawing and description are inherently illustrative, rather than for limiting the protection of claim
Scope.
As depicted in figs. 1 and 2, a kind of AMT hydraulic shifts executing agency with pressure limiting positioning function, including valve body 1, institute
The piston hole that multiple parallel arrangements are provided with valve body 1 is stated, a range piston bar and shape are installed in each piston hole
Into one group of hydraulic cylinder, a gear shift operation handle is installed on each range piston bar, as shown in fig. 6, the gear shift operation
Handle includes selector fork 64 or gearshift reversal means 65, and the is provided between the two ends of each range piston bar and the valve body 1
One oil pocket 31 and the second oil pocket 32, first oil pocket 31 and second oil pocket 32 pass through a solenoid-operated proportional pressure-reducing valve respectively
34 are connected with oil sources, and the positioning end of the range piston bar passes through first oil pocket 31 and is connected with mechanical centering positioning dress
Put, sealing dress is installed on the range piston bar between the mechanical alignment positioning device and first oil pocket 31
Put, the shaft sealer includes the axle sleeve 41 for being sleeved on the range piston bar and being fixedly connected with the valve body 1, described
The inner surface setting of axle sleeve 41, which has, is provided with sealing ring 42 in seal groove, the seal groove, be provided with the valve body 1 for examining
Survey the position sensor 5 of the range piston bar bit positions；Interlock is provided between the range piston bar；
As shown in Fig. 2 the mechanical alignment positioning device includes the end cap 43 being arranged on the valve body 1, the end cap
The pressure limiting positioner and mechanical centering device connected by locating shaft 46, the pressure limiting positioner bag are sequentially installed with 43
The positioning bushing 44 in the end cap 43 is included, the positioning end end of the range piston bar, which is provided with, stretches into the positioning
Multiple positioning arc grooves be arrangeding in parallel are provided with the locating shaft 46 in bushing 44, the inwall of the positioning bushing 44
47, it is provided with the locating shaft 46 and positioning plunger 45 that the positioning arc groove 47 coordinates, is installed in the locating shaft 46
There is plunger to lock pressure limiting regulation device, the plunger locking pressure limiting regulation device includes the valve rod being arranged in the locating shaft 46
It is provided with chamber, the valve-rod cavity on positioning valve rod 81, the locating shaft 46 and is provided with the plunger hole vertical with the valve-rod cavity,
The positioning plunger 45 is arranged in the plunger hole, is provided with what is coordinated with the positioning plunger 45 on the positioning valve rod 81
Retaining spring is installed in wedge-shaped impression 82, the valve-rod cavity between the positioning valve rod 81 and the mechanical centering device
48, the other end of the positioning valve rod 81 is connected with the pressure limiting regulation and control oil cylinder being arranged in the range piston bar, the pressure limiting
Regulation and control oil cylinder includes being provided with pressure limiting piston in the pressure limiting oil pocket 85 being arranged in the range piston bar, the pressure limiting oil pocket 85
83, pressure limiting spring 84 is installed between the pressure limiting piston 83 and positioning valve rod 81, one end of the pressure limiting spring 84 is resisted against
On the pressure limiting piston 83 and the other end is resisted against the end of the locating shaft 46, the pressure limiting oil pocket 85 passes through pressure limiting control valve
Connected with the oil sources, the pressure limiting control valve includes the two position, three-way electromagnetic change valve 33 connected with the pressure limiting oil pocket 85,
The two position, three-way electromagnetic change valve 33 is connected with pressure-reducing valve 86.As shown in figure 5, the interlock includes being arranged on the valve
Mutual lock shaft 61, the range piston pole face are installed in the interlocking axis hole in body 1 and connection adjacent pistons hole, the interlocking axis hole
Interlock slot 62 is provided with to the side of the mutual lock shaft 61, connection both sides are provided with the middle range piston bar
Interlocking plunger 63 is installed in the hole of interlocking plunger 63 of interlock slot 62, the hole of interlocking plunger 63.In the present embodiment, such as Fig. 2, Fig. 3 and
Shown in Fig. 4, the range piston bar includes the first range piston bar 21, the second range piston bar 22 and the 3rd range piston bar
23；The both sides of second range piston bar 22 are provided with interlock slot 62, the first range piston bar 21 and the 3rd range piston bar 23
It is provided with towards the side of the second range piston bar 22 on interlock slot 62, the second range piston bar 22 and is provided with the interlocking plunger 63
Hole.In shift process, mutual lock shaft 61 is promoted to be caught in other range piston bars by the face of cylinder of the range piston bar of work
In interlock slot 62, interlocking is realized.
As described in Figure 2, the mechanical centering device includes the centering backing plate 71 being sleeved on the locating shaft 46, described fixed
The end of position axle 46 is provided with centering pre-tightening apparatus, and the centering pre-tightening apparatus includes pair installed in the end of locating shaft 46
Middle screw 74, spring washer 75 and pad 76 are sequentially installed between the nut and the locating shaft 46 of the centering screw 74,
The spring base pressed up against on the centering pre-tightening apparatus and the centering backing plate 71 is installed in opposite directions on the locating shaft 46
72, the outer rim of the pad 76 is pressed against on the adjacent spring base 72, the positioning between two spring bases 72
Centralizing spring 73 is set with axle 46.
Specifically, as shown in figure 1, being provided with three piston holes on the valve body 1, one is provided with each piston hole
Individual range piston bar, as shown in Figure 2, Figure 3 and Figure 4, the range piston bar include the gearshift of the first range piston bar 21, second and lived
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 out of described valve body 1 and is provided with the gear shift operation handle, the He of the valve body 1 in the outside of the second oil pocket 32
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 out of described valve body 1 and are provided with the gear shift operation handle, second oil pocket 32
Sealing ring 42 is installed between the valve body 1 in outside and the 3rd range piston bar 23；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 the second oil pocket 32
Interior, the gear shift operation handle is installed on the middle part of the second range piston bar 22.
Three range piston bars can realize the gearshift execution work of six gears, can be according to change in different gearboxes
The quantity of fast device gear quantity exchange gear piston rod and its corresponding pressure limiting positioner and control oil circuit is adjusted.According to change
The setting of fast device gear positions, the length of shaft part is exported by changing range piston bar, makes shift fork and transmission gear position
Match somebody with somebody.First range piston bar 21 as shown in Figure 2, according to gearbox gear positions, changes the length of its right deferent segment, makes to dial
The position pitched with transmission gear matches.
The positioning valve rod 81 is provided with wedge-shaped impression 82, and when positioning plunger 45 is in bottom portion of groove, positioning plunger 45 takes off
From the positioning arc groove 47 of positioning bushing 44, range piston bar is set to move left and right.
As shown in fig. 6, the utility model can also use integrated multigroup structure identical gearshift hydraulic cylinder on valve body 1,
Gearshift reversal means 65 is installed on range piston bar and carrys out shift fork bar, and then shift fork completes the technical side of gear shifting action indirectly
Case.
Work of the present utility model is explained further in the course of work below according to Fig. 2 and the first range piston bar 21 of combination
Principle：
1st, the positioning of range piston bar
The oil pressure of the pressure-reducing valve 86 and two position, three-way electromagnetic change valve 33 control pressure limiting oil pocket 85 and oil circuit enter fuel-displaced
State.
In shift process, two position, three-way electromagnetic change valve 33, which is in right working position, makes oil inlet P connect with pressure limiting oil pocket 85
It is logical, promote pressure limiting piston 83 to be moved to the left, pressure limiting piston 83 compresses pressure limiting spring 84 and retaining spring 48 and promotes positioning valve rod
81, to left movement, make positioning plunger 45 drop to the bottom portion of groove of positioning valve rod 81, depart from the positioning arc groove of positioning bushing 44
47。
When range piston bar reaches gear positions, two position, three-way electromagnetic change valve 33 will transition to left working position, make limit
Pumping cavity 85 is connected with fuel tank, under the thrust of pressure limiting spring 84 and retaining spring 48, and positioning valve rod 81 and pressure limiting piston 83 are right
Shifting, the groove slope driving positioning plunger 45 of positioning valve rod 81, which snaps onto realization in the positioning arc groove 47 for positioning bushing 44, to be determined
Position.
2nd, gearshift work
In embodiment as shown in Figure 2, the first range piston bar 21 is in middle neutral position, and positioning plunger 45 is caught in positioning
In the interfix arc groove 47 of bushing 44, the positioning in the centre position of range piston bar is realized, while by the He of centralizing spring 73
The mechanical centering device of the grade composition of spring base 72 is in Shaft alignment state, and position sensor 5 is detected in the first range piston bar 21
Position position.
When corresponding solenoid-operated proportional pressure-reducing valve 34 controls the pressure of the first oil pocket 31 and the second oil pocket 32, first is promoted to shift gears
Piston rod 21 compresses centralizing spring 73 and to left movement, now positions the interfix arc groove that plunger 45 departs from positioning bushing 44
47, until range piston bar reaches left side gear positions (extreme position), positioning plunger 45 is embedded into the left end of positioning bushing 44
Position in arc groove 47, realize the positioning of range piston bar gear positions.
The operation principle of each group hydraulic cylinder is identical, will not be repeated here.
3rd, gear interlocking
When thering is one to be shifted gears in the first range piston bar 21, the second range piston bar 22 and the 3rd range piston bar 23
During work, the range piston bar will promote corresponding mutually lock shaft 61 to be caught in the interlock slot 62 of two other range piston bar, make
Other two range piston bars are stuck, and reach interlocking effect.
Description of the present utility model is provided for the sake of example and description, and is not exhaustively or by originally
Utility model is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.
Selection and description embodiment are, in order to more preferably illustrate principle of the present utility model and practical application, and to make the common skill of this area
Art personnel are it will be appreciated that the utility model is so as to design the various embodiments with various modifications suitable for special-purpose.
Claims (10)
1. a kind of AMT hydraulic shifts executing agency with pressure limiting positioning function, including valve body, it is characterised in that：The valve body
On be provided with the piston holes of multiple parallel arrangements, each piston hole a range piston bar be installed, it is each described to change
A gear shift operation handle is installed on gear piston rod, the is provided between the two ends of each range piston bar and the valve body
One oil pocket and the second oil pocket, first oil pocket and second oil pocket are connected by a solenoid-operated proportional pressure-reducing valve and oil sources respectively
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
It is provided with range piston bar between middle positioner and first oil pocket on shaft sealer, the valve body and use is installed
In the position sensor for detecting the range piston bar bit positions；Interlock is provided between the range piston bar；
The mechanical alignment positioning device includes being sequentially installed with by fixed in the end cap being arranged on the valve body, the end cap
The pressure limiting positioner and mechanical centering device of position axle connection, the pressure limiting positioner include being arranged on determining in the end cap
Position bushing, the positioning end end of the range piston bar is provided with the locating shaft stretched into the positioning bushing, described fixed
It is provided with multiple positioning arc grooves be arrangeding in parallel, the locating shaft and is provided with and the positioning circular arc on the inwall of position bushing
Plunger locking pressure limiting regulation device is installed in the positioning plunger that groove coordinates, the locating shaft.
2. there is the AMT hydraulic shifts executing agency of pressure limiting positioning function as claimed in claim 1, it is characterised in that：It is described
Shaft sealer includes being sleeved on the axle sleeve being fixedly connected on the range piston bar and with the valve body, the interior table of the axle sleeve
Face is provided with seal groove, the seal groove and is provided with sealing ring.
3. there is the AMT hydraulic shifts executing agency of pressure limiting positioning function as claimed in claim 1, it is characterised in that：It is described
Interlock includes being arranged on to be provided with mutually in the interlocking axis hole in the valve body and connection adjacent pistons hole, the interlocking axis hole
Lock shaft, the side of the range piston pole face to the mutual lock shaft is provided with interlock slot, positioned at the middle range piston
It is provided with bar in the interlocking pin-and-hole of connection both sides interlock slot, the interlocking pin-and-hole and interlocking plunger is installed.
4. there is the AMT hydraulic shifts executing agency of pressure limiting positioning function as claimed in claim 1, it is characterised in that：It is described
Plunger locking pressure limiting regulation device includes being provided with normal valve in the valve-rod cavity being arranged in the locating shaft, the valve-rod cavity
The plunger hole vertical with the valve-rod cavity is provided with bar, the locating shaft, the positioning plunger is arranged in the plunger hole,
The wedge-shaped impression coordinated with the positioning plunger is provided with the positioning valve rod, the positioning valve rod is filled with the mechanical centering
Retaining spring is installed, the other end of the positioning valve rod, which is connected with, is arranged on the gearshift work in the valve-rod cavity between putting
Pressure limiting regulation and control oil cylinder in stopper rod.
5. there is the AMT hydraulic shifts executing agency of pressure limiting positioning function as claimed in claim 4, it is characterised in that：It is described
Pressure limiting regulation and control oil cylinder includes being provided with pressure limiting work in the pressure limiting oil pocket being arranged in the range piston bar, the pressure limiting oil pocket
Plug, is provided with pressure limiting spring, one end of the pressure limiting spring is resisted against the pressure limiting between the pressure limiting piston and positioning valve rod
On piston and the other end is resisted against the end of the locating shaft, the pressure limiting oil pocket passes through pressure limiting control valve and connected with the oil sources
It is logical.
6. there is the AMT hydraulic shifts executing agency of pressure limiting positioning function as claimed in claim 5, it is characterised in that：It is described
Pressure limiting control valve includes the two position, three-way electromagnetic change valve connected with the pressure limiting oil pocket, and the two position, three-way electromagnetic change valve connects
It is connected to pressure-reducing valve.
7. there is the AMT hydraulic shifts executing agency of pressure limiting positioning function as claimed in claim 1, it is characterised in that：It is described
Mechanical centering device includes the centering backing plate being sleeved on the locating shaft, and the end of the locating shaft is provided with centering pretension dress
Put, the spring base pressed up against on the centering pre-tightening apparatus and the centering backing plate be installed in opposite directions on the locating shaft,
Centralizing spring is set with the locating shaft between two spring bases.
8. there is the AMT hydraulic shifts executing agency of pressure limiting positioning function as claimed in claim 7, it is characterised in that：It is described
Centering pre-tightening apparatus includes the centering screw for being arranged on the positioning shaft end, nut and the locating shaft of the centering screw
Between be sequentially installed with spring washer and pad, the outer rim of the pad is pressed against on the adjacent spring base.
9. there is the AMT hydraulic shifts executing agency of pressure limiting positioning function as claimed in claim 1, it is characterised in that：It is described
Gear shift operation handle includes selector fork or gearshift reversal means.
10. the AMT hydraulic shifts executing agency with pressure limiting positioning function as described in claim 1 to 9 any claim,
It is characterized in that：Three piston holes are provided with the valve body, a range piston bar, institute are installed in each piston hole
Stating 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 out of described valve body
And the peace between the valve body on the outside of the gear shift operation handle, second oil pocket and the first range piston bar is installed
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 out of described valve body
And the peace between the valve body on the outside of the gear shift operation handle, second oil pocket and the 3rd range piston bar is installed
Equipped with sealing ring；
The left end of the second range piston bar is connected with the mechanical alignment positioning device and right-hand member ends in second oil
In the piston hole of intracavitary side, 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 |
|---|---|---|---|
| CN201720083310.3U CN206449189U (en) | 2017-01-22 | 2017-01-22 | A kind of AMT hydraulic shifts executing agency with pressure limiting positioning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083310.3U CN206449189U (en) | 2017-01-22 | 2017-01-22 | A kind of AMT hydraulic shifts executing agency with pressure limiting positioning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206449189U true CN206449189U (en) | 2017-08-29 |
Family
ID=59666902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720083310.3U Active CN206449189U (en) | 2017-01-22 | 2017-01-22 | A kind of AMT hydraulic shifts executing agency with pressure limiting positioning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206449189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641235A (en) * | 2017-01-22 | 2017-05-10 | 山东海卓电液控制工程技术研究院 | AMT (Automated Mechanical Transmission) hydraulic gear-shifting executing system with pressure limiting and positioning function |
-
2017
- 2017-01-22 CN CN201720083310.3U patent/CN206449189U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641235A (en) * | 2017-01-22 | 2017-05-10 | 山东海卓电液控制工程技术研究院 | AMT (Automated Mechanical Transmission) hydraulic gear-shifting executing system with pressure limiting and positioning function |
| CN106641235B (en) * | 2017-01-22 | 2018-08-28 | 山东海卓电液控制工程技术研究院 | A kind of AMT hydraulic shifts execution system with pressure limiting positioning function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7823473B2 (en) | Electro-hydraulic control system for a motor-vehicle dual-clutch transmission | |
| CN206449189U (en) | A kind of AMT hydraulic shifts executing agency with pressure limiting positioning function | |
| CN103758993B (en) | A kind of cam gearshift of small gear-box | |
| CN102808936B (en) | Mechanical automatic gearbox gear-selecting and shifting executing mechanism | |
| CN106641235B (en) | A kind of AMT hydraulic shifts execution system with pressure limiting positioning function | |
| CN103758887A (en) | Built-in clutch and gear shifting control mechanism thereof | |
| CN205047814U (en) | Electronically controlled pneumatic mechanical type automatic gearbox selects gear shift actuating mechanism | |
| CN103485384B (en) | Excavator single handle control method and system | |
| CN102003511A (en) | Transmission for a motor vehicle | |
| CN206449190U (en) | A kind of AMT hydraulic shifts executing agency with machinery positioning and alignment function | |
| CN206054716U (en) | A kind of automatic shifting device of AMT | |
| CN206449188U (en) | A kind of AMT shifting hydraulic actuating mechanisms with pressure limiting positioning function | |
| CN203239914U (en) | Hydraulic control system for automatic double-clutch speed changing box | |
| CN206904221U (en) | A kind of AMT hydraulic gear-shiftings executing agency with machinery positioning function | |
| US8397598B2 (en) | Motor-vehicle gearbox | |
| CN106641236A (en) | AMT hydraulic gear shifting execution system having mechanical positioning and centering functions | |
| CN103697156B (en) | Pneumatic shifting multipoint soft positioning mechanism | |
| CN204041978U (en) | A kind of shifting vehicle gearbox operating mechanism | |
| CN218177900U (en) | Gearshift for speed change power head | |
| CN106763720B (en) | A kind of AMT shifting hydraulic executing systems with pressure limiting positioning function | |
| CN104179750B (en) | A kind of numerical model analysis position control valve | |
| CN106641237A (en) | AMT hydraulic gear shifting execution system having mechanical positioning function | |
| CN203823034U (en) | Novel mechanical actuating mechanism of hydraulic gear choosing and changing of automatic transmission | |
| CN206409626U (en) | Six grades of manual longitudinal gear selecting selector devices | |
| CN110234911A (en) | Switch executing agency, differential lock, independent transmission device, speed changer and vehicle bridge maker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |