CN207111915U - A kind of AMT hydraulic gear-shiftings executing agency with mechanical alignment function - Google Patents
A kind of AMT hydraulic gear-shiftings executing agency with mechanical alignment function Download PDFInfo
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- CN207111915U CN207111915U CN201720103784.XU CN201720103784U CN207111915U CN 207111915 U CN207111915 U CN 207111915U CN 201720103784 U CN201720103784 U CN 201720103784U CN 207111915 U CN207111915 U CN 207111915U
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- piston bar
- range piston
- valve body
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- oil pocket
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Abstract
The utility model discloses a kind of AMT hydraulic gear-shiftings executing agency with mechanical alignment function, including valve body, multiple piston holes is provided with valve body, a range piston bar is installed in each piston hole, a gear shift operation handle is installed on each range piston bar, the first oil pocket and the second oil pocket are provided between the both ends of each range piston bar and valve body, first oil pocket and the second oil pocket are connected by a reversal valve with fuel tank respectively, the positioning end of range piston bar is through the first oil pocket and is connected with mechanical centering device, and position sensor is installed on valve body；Interlock is provided between range piston bar；The gear shifting action of range piston bar is controlled by reversal valve and position centering control is carried out to gearshift piston rod using mechanical centering device, interlocking between range piston bar is realized by mechanical interlock, the self shifter work of AMT multiple gears can be realized, with higher control accuracy, it is simple in construction, reliable operation.
Description
Technical field
It the utility model is related to automotive transmission technical field, more particularly to a kind of AMT hydraulic gear-shiftings execution system.
Background technology
Gearshift performs device is the key component that AMT realizes self shifter work, and its service behaviour directly influences AMT certainly
The shift quality of dynamic speed changer and the reliability of gearshift work, more have influence on the comfortableness of driving.AMT gearshift performs device has
Hydraulic pressure, pneumatic and electronic three kinds of modes, hydraulic gear-shifting performs device have the characteristics that easy to operate, easy to control, reliable operation, by
Step is applied in the automatic transmission of heavy vehicle.Existing hydraulic gear-shifting performs device to shift gears piston rod position control and
Lack effective job security in terms of reliability, need further to be lifted in terms of control accuracy and functional reliability, with more preferable
Improvement automatic transmission service behaviour.
Utility model content
Technical problem to be solved in the utility model, which is to provide, a kind of has higher control accuracy and functional reliability
The AMT hydraulic gear-shiftings executing agency with mechanical alignment function.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of AMT hydraulic gear-shiftings executing agency with mechanical alignment function, including valve body, it is provided with the valve body more
The piston hole of individual parallel arrangement, a range piston bar each is installed in the piston hole, on each range piston bar
One gear shift operation handle is installed, the first oil pocket and the are provided between the both ends of each range piston bar and the valve body
Two oil pockets, first oil pocket and second oil pocket are connected by a reversal valve with fuel tank respectively, the range piston bar
Positioning end through first oil pocket and being connected with mechanical centering device, the mechanical centering device and first oil pocket it
Between shaft sealer is installed, the position sensing for detecting the range piston bar bit positions is installed on the valve body
Device；Interlock is provided between the range piston bar.
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 has seal groove, sealing ring is provided with the seal groove.
As a kind of perferred technical scheme, the mechanical centering device includes the end being fixedly mounted on the valve body
Lid, the positioning end end of the range piston bar in the end cap are provided with centering pre-tightening apparatus, on the range piston bar
It is opposite that the spring base pressed up against on the centering pre-tightening apparatus and the axle sleeve is installed, between two spring bases
Centralizing spring is set with the range piston bar.
As a kind of perferred technical scheme, the centering pre-tightening apparatus is included installed in the range piston boom end
Centering screw, spring washer and pad are sequentially installed between the nut of the centering screw and the range piston bar, it is described
The outer rim of pad is pressed against on the adjacent spring base.
As a kind of perferred technical scheme, the interlock includes being arranged in the valve body and connects adjacent pistons
The interlocking axis hole in hole, described interlock are provided with mutual lock shaft in axis hole, the side of the range piston pole face to the mutually lock shaft is equal
Interlock slot is provided with, the interlocking pin-and-hole of connection both sides interlock slot is provided with the range piston bar of centre, it is described mutual
Interlocking plunger is installed in lockpin hole.
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, the reversal valve is two position, three-way electromagnetic change valve.
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 centering device and right-hand member stretches out out of described 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 centering device and left end stretches out out of described 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 is connected with the mechanical centering 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.
By adopting the above-described technical solution, a kind of AMT hydraulic gear-shiftings executing agency with mechanical alignment function, including
Valve body, the piston hole of multiple parallel arrangements is provided with the valve body, a range piston is installed in each piston hole
Bar, a gear shift operation handle each is installed on the range piston bar, the both ends of each range piston bar and the valve
Be provided with the first oil pocket and the second oil pocket between body, first oil pocket and second oil pocket respectively by a reversal valve with
Fuel tank connects, and the positioning end of the range piston bar through first oil pocket and is connected with mechanical centering device, the valve body
On position sensor for detecting the range piston bar bit positions is installed；It is provided between the range piston bar mutually
Locking device；The gear shifting action of range piston bar is controlled by reversal valve and line position is entered to gearshift piston rod using mechanical centering device
Centering control is put, the interlocking between range piston bar is realized by mechanical interlock, AMT multiple gears oneself can be realized
Move gear work, there is higher control accuracy, simple in construction, reliable operation.
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 gearshift hydraulic actuating mechanism 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；41- axle sleeves；42- sealing rings；43- end caps；44- springs
Seat；45- centralizing springs；46- centering screws；47- spring washers；48- pads；5- position sensors；The mutual lock shafts of 61-；62- is interlocked
Groove；63- interlocking plungers；64- selector forks；65- gearshift reversal meanss.
Embodiment
With reference to the accompanying drawings and examples, the utility model is expanded on further.In the following detailed description, only pass through
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 gear-shiftings executing agency with mechanical alignment 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, the two of each range piston bar
The first oil pocket 31 and the second oil pocket 32, first oil pocket 31 and second oil pocket 32 are provided between end and the valve body 1
It is connected respectively by a reversal valve with fuel tank, the reversal valve is two position, three-way electromagnetic change valve 33, the range piston bar
Positioning end through first oil pocket 31 and being connected with mechanical centering device, the mechanical centering device and first oil pocket
Between shaft sealer is installed, the shaft sealer includes being sleeved on the range piston bar and solid with the valve body 1
Surely the axle sleeve 41 connected, the inner surface setting of the axle sleeve 41 have seal groove, sealing ring 42 are provided with the seal groove.It is described
Mechanical centering device includes being fixedly mounted on end cap 43 on the valve body 1, the range piston bar in the end cap 43
Positioning end end is provided with centering pre-tightening apparatus, is provided with opposite directions on the range piston bar and presses up against the centering pretension
Spring base 44 on device and the axle sleeve 41, centering is set with the range piston bar between two spring bases 44
Spring 45；The centering pre-tightening apparatus includes the centering screw 46 installed in the range piston boom end, the centering screw
Spring washer 47 and pad 48 are sequentially installed between 46 nut and the range piston bar, the outer rim of the pad 48 is pressed against
On the adjacent spring base 44.Position for detecting the range piston bar bit positions is installed on the valve body 1 to pass
Sensor 5；Interlock is provided between the range piston bar, as shown in figure 5, the interlock includes being arranged on the valve
The interlocking axis hole in body 1 and connection adjacent pistons hole, described interlock in axis hole are provided with mutual lock shaft 61, the range piston pole face
Interlock slot 62 is provided with to the side of the mutually lock shaft 61, connection both sides are provided with the range piston bar of centre
The interlocking pin-and-hole of interlock slot 62, described interlock in pin-and-hole are provided with interlocking plunger 63.In the present embodiment, such as Fig. 2, Fig. 3 and Fig. 4 institute
Show, the range piston bar includes the first range piston bar 21, the second range piston bar 22 and the 3rd range piston bar 23；Second
The both sides of range piston bar 22 are provided with interlock slot 62, the first range piston bar 21 and the 3rd range piston bar 23 towards second
The side of range piston bar 22 is provided with interlock slot 62, and the interlocking pin-and-hole is provided with the second range piston bar 22.
As shown in figures 1 to 6, the gear shift operation handle includes selector fork 64 or gearshift reversal means 65.That is the utility model
Can also be using the method for the installation gearshift reversal means 65 on range piston bar come shift fork bar, and then shift fork is completed indirectly
Gear shifting action.
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 centering device and the right side
End is stretched out out of described valve body 1 and is provided with the gear shift operation handle, the valve body 1 in the outside of the second oil pocket 32 and described
Sealing ring 42 is installed between first range piston bar 21；As shown in figure 4, the right-hand member connection of the 3rd range piston bar 23
There is the mechanical centering device and left end stretches out out of described valve body 1 and is provided with the gear shift operation handle, second oil pocket
Sealing ring 42 is installed between the valve body 1 and the 3rd range piston bar 23 in 32 outsides；As shown in figure 3, described
The left end of two range piston bars 22 is connected with the mechanical centering device and right-hand member ends in the institute of the inner side of the second oil pocket 32
State in piston hole, the gear shift operation handle is installed on the middle part of the second range piston bar 22.
In valve body 1, the hydraulic cylinder quantity of piston hole and range piston the bar composition can be according to the gear number of speed changer
Amount requirement is configured.One end that the range piston bar is connected with mechanical centering device is positioning end, and the other end is output end,
The length of the output end of the range piston bar is designed according to transmission gear position, so that the position of shift fork and speed changer
Gear positions are corresponding.
Operation principle：
1st, neutral position (middle position state) is kept
The the first range piston bar 21 for being illustrated in figure 2 hydraulic gear-shifting execution system is in middle position state.Now, hydraulic cylinder
The first oil pocket 31 and the second oil pocket 32 connected by two two position, three-way electromagnetic change valves 33 with fuel tank, two spring bases 44
For large end face respectively against on end cap 43 and axle sleeve 41, the pretightning force that centralizing spring 45 applies can keep the first range piston bar 21
Middle position is in, i.e. the first range piston bar 21 is in neutral position.Now corresponding position sensor 5 detects the first range piston bar
21 are in bit positions.
2nd, put into gear work
As shown in Fig. 2 two position, three-way electromagnetic change valve 33 makes the oil extraction of the first oil pocket 31 and the oil-feed of the second oil pocket 32 respectively, push away
Dynamic first range piston bar 21 is compressed to left movement, centralizing spring 45, until the first range piston bar 21 reaches the left side limit
Position, that is, position of putting into gear.Gear shift operation handle on the first range piston bar 21 can complete action of putting into gear.Hydraulic gear-shifting performs
Other range piston bars of system realize the principle for work of putting into gear to the right and left side is put into gear, and operation principle is identical, herein not superfluous
State.3rd, change when the interlocking between piston rod
As shown in figure 5, when there is a range piston bar to carry out gearshift work in range piston bar, the range piston bar will
Promote mutual lock shaft 61 to be caught in the interlock slot 62 of two other range piston bar, other two range piston bars is stuck, reach
To interlocking effect.
The operation principle of each range piston bar is identical, repeats no more here.
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (8)
1. a kind of AMT hydraulic gear-shiftings executing agency with mechanical alignment function, including valve body, it is characterised in that：The valve body
On be provided with the piston holes of multiple parallel arrangements, a range piston bar is installed in each piston hole, it is each described to change
A gear shift operation handle is installed on gear piston rod, the is provided between the both 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 reversal valve with fuel tank respectively, described
The positioning end of range piston bar is through first oil pocket and being connected with mechanical centering device, the mechanical centering device and described
Shaft sealer is installed between the first oil pocket, is provided with the valve body for detecting the range piston bar bit positions
Position sensor；Interlock is provided between the range piston bar.
2. there is the AMT hydraulic gear-shiftings executing agency of mechanical alignment 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, and sealing ring is provided with the seal groove.
3. there is the AMT hydraulic gear-shiftings executing agency of mechanical alignment function as claimed in claim 2, it is characterised in that：It is described
Mechanical centering device includes being fixedly mounted on end cap on the valve body, the positioning end of the range piston bar in the end cap
End is provided with centering pre-tightening apparatus, be provided with opposite directions on the range piston bar press up against the centering pre-tightening apparatus and
Spring base on the axle sleeve, centralizing spring is set with the range piston bar between two spring bases.
4. there is the AMT hydraulic gear-shiftings executing agency of mechanical alignment function as claimed in claim 3, it is characterised in that：It is described
Centering pre-tightening apparatus includes the centering screw installed in the range piston boom end, and the nut of the centering screw changes with described
Spring washer and pad are sequentially installed between gear piston rod, the outer rim of the pad is pressed against on the adjacent spring base.
5. there is the AMT hydraulic gear-shiftings executing agency of mechanical alignment function as claimed in claim 1, it is characterised in that：It is described
Interlock includes being arranged on the interlocking axis hole in the valve body and connection adjacent pistons hole, is provided with mutually in the interlocking axis hole
Lock shaft, the side of the range piston pole face to the mutually lock shaft are provided with interlock slot, the range piston positioned at centre
The interlocking pin-and-hole of connection both sides interlock slot is provided with bar, interlocking plunger is installed in the interlocking pin-and-hole.
6. there is the AMT hydraulic gear-shiftings executing agency of mechanical alignment 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.
7. there is the AMT hydraulic gear-shiftings executing agency of mechanical alignment function as claimed in claim 1, it is characterised in that：It is described
Reversal valve is two position, three-way electromagnetic change valve.
8. the AMT hydraulic gear-shiftings executing agency with mechanical alignment function as described in claim 1 to 7 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 centering device and right-hand member stretches out and pacified out of described valve body
Equipped with the gear shift operation handle, being provided between the valve body and the first range piston bar on the outside of second oil pocket
Sealing ring；
The right-hand member of the 3rd range piston bar is connected with the mechanical centering device and left end stretches out and pacified out of described valve body
Equipped with the gear shift operation handle, being provided between the valve body and the 3rd range piston bar on the outside of second oil pocket
Sealing ring；
The left end of the second range piston bar is connected with the mechanical centering device and right-hand member is ended in second oil pocket
In the piston hole of 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 |
|---|---|---|---|
| CN201720103784.XU CN207111915U (en) | 2017-01-22 | 2017-01-22 | A kind of AMT hydraulic gear-shiftings executing agency with mechanical alignment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720103784.XU CN207111915U (en) | 2017-01-22 | 2017-01-22 | A kind of AMT hydraulic gear-shiftings executing agency with mechanical alignment function |
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| Publication Number | Publication Date |
|---|---|
| CN207111915U true CN207111915U (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720103784.XU Active CN207111915U (en) | 2017-01-22 | 2017-01-22 | A kind of AMT hydraulic gear-shiftings executing agency with mechanical alignment function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641224A (en) * | 2017-01-22 | 2017-05-10 | 山东海卓电液控制工程技术研究院 | AMT hydraulic gear-shifting execution system having mechanical centering function |
| CN113958706A (en) * | 2021-11-04 | 2022-01-21 | 陕西法士特齿轮有限责任公司 | Limit structure of gear shifting head |
-
2017
- 2017-01-22 CN CN201720103784.XU patent/CN207111915U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641224A (en) * | 2017-01-22 | 2017-05-10 | 山东海卓电液控制工程技术研究院 | AMT hydraulic gear-shifting execution system having mechanical centering function |
| CN113958706A (en) * | 2021-11-04 | 2022-01-21 | 陕西法士特齿轮有限责任公司 | Limit structure of gear shifting head |
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