CN207421310U - A kind of speed changer parking operation device - Google Patents
A kind of speed changer parking operation device Download PDFInfo
- Publication number
- CN207421310U CN207421310U CN201721386094.6U CN201721386094U CN207421310U CN 207421310 U CN207421310 U CN 207421310U CN 201721386094 U CN201721386094 U CN 201721386094U CN 207421310 U CN207421310 U CN 207421310U
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- pawl
- cam
- axis
- spring
- operation device
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Abstract
The utility model provides a kind of speed changer parking operation device, including：Selector shaft, castellated plates, spring, cam, fixed pin, return pin, pawl, pawl axis, castellated plates, spring, cam, pawl are sequentially arranged on selector shaft；One end of pawl is provided with return pin, and the other end of pawl is fixedly installed pawl axis, and pawl axis is mounted on case of transmission；Irregularly-shaped hole is provided on cam, return pin enters in irregularly-shaped hole, passes through the rotation of cam so that return pin is moved along the inward flange of irregularly-shaped hole, so as to promote axis rotation of the pawl along pawl axis；When pawl is caught in the tooth socket of gear, realization parking function；When pawl departs from tooth socket, parking function is exited in realization.The characteristics of the utility model has that structural behaviour stability is high, and each design of part is simple, and the quantity of part is few, greatly reduces the possibility that entire mechanism breaks down, and reduces production cost, and light-weight.
Description
Technical field
The utility model is related to a kind of automobile technical field, more particularly to a kind of speed changer parking operation device.
Background technology
Halting mechanism operating mechanism is relative complex, causes matching requirements high, and complex process.Since parts are more, cause
Cost is higher.Simultaneously as the error of a part adds up more than 20, cause scale error big.It is stayed since spring force can be passed through
Vehicle pawl blocks ratchet, therefore in extreme circumstances（Vehicle overload is parked in compared on steep gradient）, have can not parking risk.The prior art
Halting mechanism there is the shortcomings of mechanism is complicated, and parts are more, and bearing capacity is small.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of speed changer parking operation device, including：Selector shaft,
Castellated plates, spring, cam, fixed pin, return pin, pawl, pawl axis, castellated plates, spring, cam, pawl, which are sequentially arranged at, to be changed
On shelves axis；One end of pawl is provided with return pin, and the other end of pawl is fixedly installed pawl axis, and pawl axis is mounted on speed changer
On housing；Irregularly-shaped hole is provided on cam, return pin enters in irregularly-shaped hole, passes through the rotation of cam so that return pin is along different
The inward flange movement in shape hole, so as to promote axis rotation of the pawl along pawl axis；When pawl is caught in the tooth socket of gear, realization is stayed
Vehicle function；When pawl departs from tooth socket, parking function is exited in realization.
Using the form of cam control pawl action：Position is machined on brake pawl when vehicle exits P grades, driver turns
Move gear shaft, there is irregularly-shaped hole on the cam rotated together with rotation axis, return pin coordinates with irregularly-shaped hole on pawl, and irregularly-shaped hole can push away
Dynamic park pawl return, makes park pawl depart from the gear grooved of parking gear, and parking function is exited in realization.
Preferably, irregularly-shaped hole is back-shaped hole, puts curve and pin, is fixed on shifting shaft equipped with axial position, radially
Rotatable cam, the rotatable cam of radial direction are pressed in by spring on shifting shaft.
When needing to carry out parking operation to vehicle, driver turns' shifting shaft, cam promotes pawl to turn along pawl axis
It is dynamic.If park pawl and park tooth race face, pawl can be accurately caught in tooth socket at this time；If park pawl is just at this time
To parking gear tooth top, it may appear that park pawl is stuck in parking gear tooth top and cannot be introduced into the situation of tooth socket, at this time shifts gears
Situation about being stuck cannot occur in handle, therefore shifting shaft still can be with normal rotation, and the shifting shaft rotated at this time compresses spring, makes to stay
Vehicle pawl clamping is pressed on parking gear tooth top, and after having small movement in vehicle, park pawl can slip over first contact vehicle
Then gear tooth is caught under the promotion of spring in tooth socket, it is ensured that the realization of parking function.
Further, there is pin hole, fixed pin is interference fit with pin hole on the circumferential surface of one end of selector shaft；Have on cam
With the corresponding groove of fixed pin so that cam cooperates with fixed pin, so as to which cam can be rotated with selector shaft.
Preferably, selector shaft and the through hole in castellated plates are interference fits.
Preferably, return pin is press-fitted with pawl for interference.
Preferably, spring is arranged between castellated plates and cam, and one section of spring silk is stretched out at the both ends of spring respectively, with selector shaft
Axis parallel.
Preferably, castellated plates are sole template, and one end has several continuous teeth that irregular curve is formed；The other end has
There is an axis hole；In the edge part of castellated plates, also with a card slot, one section of spring silk of spring is caught in card slot；The size and spring of card slot
The diameter of silk is adapted.
Further, cam has preformed hole, another section of spring silk insertion preformed hole of spring.
Preferably, it is interference fit to have the cooperation between axis hole, with selector shaft on cam.
Preferably, pawl substantially T fonts, the afterbody of T fonts are provided with axis hole, are pressed pawl axis for interference.
Preferably, the yi word pattern part on the head of T fonts while being provided with return pin hole, while being provided with claw, is used
It is adapted in gear grooved.
As a result of said program, the utility model has the characteristics that：
（1）Structural behaviour stability is high, and compared with traditional halting mechanism, entire mechanism is only made of 8 parts, wherein
There are 3 standard components, each design of part is simple, and the quantity of part is few, greatly reduces the possibility that entire mechanism breaks down.
（2）Mechanism structure is compact simple, simplifies production technology and assembly technology well, reduces production cost, and
It is and light-weight；As shown in Figure 1, shifting shaft and pawl axis technique very simple, return pin, shop bolt and spring are standard
Part.
Description of the drawings
Fig. 1 is the structure diagram of the parking operation device of a preferred embodiment of the utility model；
Fig. 2 is the exploded perspective view of the parking operation device of a preferred embodiment of the utility model；
Fig. 3 is the close-up schematic view of the parking operation device of a preferred embodiment of the utility model；
Fig. 4 is the schematic diagram of the parked state of the parking operation device of a preferred embodiment of the utility model；
Fig. 5 is the schematic diagram of the disengaging parked state of the parking operation device of a preferred embodiment of the utility model；
Fig. 6 is the front view of the castellated plates of the parking operation device of a preferred embodiment of the utility model；
Fig. 7 is the castellated plates left view of the parking operation device of a preferred embodiment of the utility model；
Fig. 8 is the front view of the pawl of the parking operation device of a preferred embodiment of the utility model.
Specific embodiment
A preferred embodiment of the utility model is introduced below with reference to Figure of description, citing proves that the utility model can
To implement, its technology contents can be made more clear and be convenient for those of skill in the art's complete description the utility model
Understand.The utility model can be emerged from by many various forms of embodiments, and protection domain is not limited only to text
In the embodiment mentioned, figures and description herein substantially illustrates rather than limitation the utility model.In the accompanying drawings,
The identical component of structure represents that the similar component of structure or function is represented with like numeral label everywhere with same numbers label.
As shown in Fig. 1 Fig. 2, the utility model provides a kind of speed changer parking operation device, including：Selector shaft 1, tooth form
Plate 2, spring 3, cam 4, fixed pin 5, return pin 6, pawl 7, pawl axis 8, castellated plates 2, spring 3, cam 4, pawl 7 are successively
On selector shaft 1；One end of pawl 7 is provided with return pin 6, and the other end of pawl 7 is fixedly installed pawl axis 8, pawl
Axis 8 is mounted on case of transmission；Irregularly-shaped hole 41 is provided on cam 4, return pin 6 enters in irregularly-shaped hole 41, passes through cam 4
It rotates so that return pin 6 is moved along the inward flange of irregularly-shaped hole 41, so as to promote axis rotation of the pawl 7 along pawl axis 8.
As shown in figure 3, the present embodiment, irregularly-shaped hole is back-shaped hole.
As shown in Figure 4, Figure 5, fixed on shifting shaft 1 equipped with axial position, radially rotatable cam 4, radially may be used
It is pressed in the cam 4 of rotation by spring 3 on shifting shaft 1.
When needing to carry out parking operation to vehicle, driver turns' shifting shaft 1, cam 4 promotes pawl 7 along pawl axis
8 rotate.If park pawl 7 and park tooth race face, pawl 7 can be accurately caught in tooth socket at this time；If parking at this time
7 face parking gear tooth top of pawl, it may appear that park pawl 7 is stuck in the tooth top of parking gear 9 and cannot be introduced into the situation of tooth socket,
At this time situation about being stuck cannot occur in shift handle, therefore shifting shaft 1 still can be with normal rotation, the shifting shaft 1 that rotates at this time
Spring 3 is compressed, 7 clamping of park pawl is made to be pressed on the tooth top of parking gear 9, after having small movement in vehicle, park pawl 7
First contact vehicle gear tooth can be slipped over, is then caught under the promotion of spring 3 in tooth socket, it is ensured that the realization of parking function.
When pawl 7 is caught in the tooth socket of gear 9, realization parking function；When pawl 7 departs from tooth socket, parking function is exited in realization.
The form of the action of pawl 7 is controlled using cam 4：When having back-shaped hole 41, spine on driver turns' shifting shaft 1, cam 4
Return pin 6 coordinates with back-shaped hole 41 on pawl 7, and back-shaped hole 41 can promote 7 return of park pawl, and park pawl 7 is made to depart from park tooth
Parking function is exited in the gear grooved of wheel 9, realization.
As shown in Figure 6, Figure 7, there is pin hole, fixed pin 5 is interference fit with pin hole on the circumferential surface of one end of selector shaft 1；
Have on cam 4 and 5 corresponding groove 44 of fixed pin so that cam 4 cooperates with fixed pin 5, so that cam 4 can be with
Selector shaft 1 rotates together.
Selector shaft 1 is interference fit with the through hole in castellated plates 2.Return pin 6 is press-fitted with pawl 7 for interference.Spring 3 is set
Between castellated plates 2 and cam 4, one section of spring silk, the axis parallel with selector shaft 1 are stretched out in the both ends of spring 3 respectively.
In the present embodiment, as shown in figure 3, castellated plates 2 are sole template, one end has several companies that irregular curve is formed
Continuous tooth 21；The other end has an axis hole 22；In the edge part of castellated plates 2, also with a card slot 23, one section of spring silk of spring 3
It is caught in card slot 23；The size of card slot 23 and the diameter of spring silk are adapted.
As shown in fig. 6, cam 4 has preformed hole 43, another section of spring silk insertion preformed hole 43 of spring 3.Have on cam 4
Cooperation between axis hole 42, with selector shaft 1 is interference fit.
As shown in figure 8, the substantially T fonts of pawl 7, the afterbody of T fonts are provided with axis hole 73, it is pressed pawl axis for interference
8。
The yi word pattern part on the head of T fonts, while be provided with return pin hole 71, while be provided with claw 72, for
Gear grooved is adapted.
A kind of installation step of speed changer parking operation device of the utility model is as follows：
A. selector shaft 1 and castellated plates 2：Interference is pressed, after 3 shape of spring is assembled with cam 4（It is reserved on spring insertion cam
Hole）, it is sleeved on selector shaft 1, is assembled with castellated plates 2；
B. fixed pin 5 and castellated plates 2：Fixed pin and axis interference are press-fitted, to this axis on complete assembling
C. return pin 6 and pawl 7：Return pin 6 is press-fitted with 7 interference of pawl, and pawl axis 8 is mounted in case of transmission (in figure not
Show) on, the selector shaft 1 for completing assembling is then transferred to case of transmission.
As a result of said program, the utility model has the characteristics that：
（1）Structural behaviour stability is high, and compared with traditional halting mechanism, entire mechanism is only made of 8 parts, wherein
There are 3 standard components, each design of part is simple, and the quantity of part is few, greatly reduces the possibility that entire mechanism breaks down.
（2）Mechanism structure is compact simple, simplifies production technology and assembly technology well, reduces production cost, and
It is and light-weight；As shown in Figure 1, shifting shaft and pawl axis technique very simple, return pin, shop bolt and spring are standard
Part.
The above is only the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art
Personnel on the premise of the utility model principle is not departed from, can also make several improvements and modifications, these improvements and modifications
It should be regarded as the scope of protection of the utility model.
Claims (9)
1. a kind of speed changer parking operation device, which is characterized in that including：Selector shaft, castellated plates, spring, cam, fixed pin,
Return pin, pawl, pawl axis, the castellated plates, the spring, the cam, the pawl are sequentially arranged at the selector shaft
On；One end of the pawl is provided with return pin, and the other end of the pawl is fixedly installed the pawl axis, the pawl axis
On case of transmission；Back-shaped hole is provided on the cam, the return pin enters in the back-shaped hole, by described
The rotation of cam so that the return pin is moved along the inward flange in the back-shaped hole, so as to promote the pawl along described
The axis rotation of pawl axis；When pawl is caught in the tooth socket of gear, realization parking function；When pawl departs from the tooth socket, realization is moved back
Go out parking function.
2. parking operation device as described in claim 1, which is characterized in that there is pin on the circumferential surface of one end of the selector shaft
Hole, the fixed pin are interference fit with the pin hole；Have and the corresponding groove of the fixed pin on the cam so that
The cam cooperates with the fixed pin, so as to which the cam can be rotated with the selector shaft.
3. parking operation device as described in claim 1, which is characterized in that the selector shaft and the through hole in the castellated plates
It is interference fit.
4. parking operation device as described in claim 1, which is characterized in that the return pin is interference pressure with the pawl
Match somebody with somebody.
5. parking operation device as described in claim 1, which is characterized in that the spring is arranged on castellated plates and described
Between cam, one section of spring silk, the axis parallel of the spring silk and the selector shaft are stretched out in the both ends of the spring respectively.
6. parking operation device as claimed in claim 5, which is characterized in that the castellated plates are sole template, and one end has
Several continuous teeth that irregular curve is formed；The other end has an axis hole；In the edge part of the castellated plates, also block with one
Slot, one section of spring silk of the spring are caught in the card slot；The size of the card slot and the diameter of the spring silk are adapted.
7. parking operation device as claimed in claim 5, which is characterized in that the cam has preformed hole, the spring
Another section of spring silk is inserted into the preformed hole.
8. parking operation device as described in claim 1, which is characterized in that there is axis hole, with the gear shift on the cam
Cooperation between axis is interference fit.
9. parking operation device as described in claim 1, which is characterized in that the pawl substantially T fonts, the T fonts
Afterbody be provided with axis hole, be pressed the pawl axis for interference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721386094.6U CN207421310U (en) | 2017-10-25 | 2017-10-25 | A kind of speed changer parking operation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721386094.6U CN207421310U (en) | 2017-10-25 | 2017-10-25 | A kind of speed changer parking operation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207421310U true CN207421310U (en) | 2018-05-29 |
Family
ID=62308728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721386094.6U Active CN207421310U (en) | 2017-10-25 | 2017-10-25 | A kind of speed changer parking operation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207421310U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606146A (en) * | 2017-10-25 | 2018-01-19 | 上海伊控动力系统有限公司 | A kind of speed changer parking operation device |
| CN108825775A (en) * | 2018-09-08 | 2018-11-16 | 赣州经纬科技股份有限公司 | A kind of automobile transmission halting mechanism |
| TWI667425B (en) * | 2018-08-28 | 2019-08-01 | 財團法人工業技術研究院 | Gearbox and parking mechanism thereof |
| CN111720539A (en) * | 2019-03-21 | 2020-09-29 | 上海汽车变速器有限公司 | Cam locking type transmission parking mechanism |
-
2017
- 2017-10-25 CN CN201721386094.6U patent/CN207421310U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606146A (en) * | 2017-10-25 | 2018-01-19 | 上海伊控动力系统有限公司 | A kind of speed changer parking operation device |
| TWI667425B (en) * | 2018-08-28 | 2019-08-01 | 財團法人工業技術研究院 | Gearbox and parking mechanism thereof |
| CN108825775A (en) * | 2018-09-08 | 2018-11-16 | 赣州经纬科技股份有限公司 | A kind of automobile transmission halting mechanism |
| CN111720539A (en) * | 2019-03-21 | 2020-09-29 | 上海汽车变速器有限公司 | Cam locking type transmission parking mechanism |
| CN111720539B (en) * | 2019-03-21 | 2021-09-07 | 上海汽车变速器有限公司 | Cam locking type transmission parking mechanism |
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| GR01 | Patent grant |