CN212643515U - Engine parking mechanism and engine - Google Patents
Engine parking mechanism and engine Download PDFInfo
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- CN212643515U CN212643515U CN202020729390.7U CN202020729390U CN212643515U CN 212643515 U CN212643515 U CN 212643515U CN 202020729390 U CN202020729390 U CN 202020729390U CN 212643515 U CN212643515 U CN 212643515U
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Abstract
The utility model relates to an engine parking mechanism and engine, including parking gear, with but parking gear meshing parking or break away from parking arm and be used for driving parking arm and parking gear meshing or break away from the actuating mechanism that meshes; the actuating mechanism comprises a shifting plate eccentrically provided with a driving column, the shifting plate can be driven to drive the driving column to eccentrically rotate, and the driving column can act on the parking arm when eccentrically rotating so that the parking arm and the parking gear form parking engagement; the parking arm is also provided with a return pretightening force for disengaging from the parking gear; the parking accuracy and reliability are improved, the manufacturing difficulty and cost are reduced, and abnormal mechanical noise is avoided; and the structure is simple.
Description
Technical Field
The utility model relates to an engine parking field especially relates to an engine parking mechanism and engine.
Background
At present, a hand brake on an automobile is generally utilized to stop the automobile so as to achieve the purpose of parking. In the existing parking structure in the market, a parking cam is independently arranged on a speed change drum, and a parking arm is driven by the parking cam, so that the structure has the advantages of more parts on the speed change drum, large combined accumulated deviation, low overall precision and low reliability; meanwhile, the parking cam and the parking arm have high requirements on relative dimensional accuracy, so that the manufacturing and processing cost is high. In the parking mechanism of some engines, a kidney-shaped groove is designed on a parking arm, and the parking arm is driven to rotate by means of linkage matching of an eccentric pin on a five-star shifting plate and the kidney-shaped groove, so that a parking function is realized; the kidney-shaped groove on the parking arm and the eccentric pin on the five-star shifting plate are always in a contact state, abrasion is increased after the parking arm is used for a long time, working reliability is affected, meanwhile, the requirement on the machining precision of the kidney-shaped groove is high, the manufacturing and machining cost is high, and unnecessary mechanical noise is easy to generate.
Based on above problem, the utility model provides an engine parking mechanism and engine. The engine parking mechanism and the engine are beneficial to improving the parking accuracy and reliability of the parking mechanism, reducing the manufacturing difficulty and cost and avoiding abnormal mechanical noise; and the structure is simple.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an engine parking mechanism and engine. The engine parking mechanism and the engine are beneficial to improving the parking accuracy and reliability of the parking mechanism, reducing the manufacturing difficulty and cost and avoiding abnormal mechanical noise; and the structure is simple.
The utility model discloses an engine parking mechanism, including parking gear, with but parking gear meshing parking or break away from parking arm and be used for driving parking arm and parking gear meshing or break away from the actuating mechanism that meshes;
the actuating mechanism comprises a shifting plate eccentrically provided with a driving column, the shifting plate can be driven to drive the driving column to eccentrically rotate, and the driving column can act on the parking arm when eccentrically rotating so that the parking arm and the parking gear form parking engagement; the parking arm is also provided with a return pretightening force for disengaging from the parking gear; the parking arm is of a triangle-like structure, one end of the parking arm is rotatably hinged to the box body, and the other end of the parking arm is provided with meshing teeth; the eccentric arrangement of the driving column is beneficial to realizing the contact with the parking arm and the separation from the parking arm when the driving column rotates along with the shifting plate, so as to be beneficial to realizing the parking function; when parking, the driving column is driven to contact with the parking arm and push the parking arm to rotate around the parking axle, so that the engagement transmission between the parking arm and the parking gear is realized; when the driving column is driven to rotate reversely, the parking arm is separated from the driving column and rotates reversely under the reset pretightening force, so that the parking arm is separated from the parking gear; preferably, the driving column and the shifting plate are integrally formed, and the integral forming technology belongs to the prior art and is not described herein again; when the P gear is engaged, the gear shifting shaft drives the speed changing drum to rotate anticlockwise, the shifting plate fixed on the speed changing drum and the driving column rotate anticlockwise together, the driving column arranged eccentrically is contacted with the parking arm, the parking arm is pushed to rotate around the parking shaft in a translation mode, and the engaging teeth arranged on the corresponding side of the parking arm are engaged with the parking gear while the parking arm rotates anticlockwise, so that parking is achieved, and meanwhile, a return pre-tightening force is applied; and when the parking is not needed, the gear shifting shaft drives the speed changing drum to rotate clockwise, the shifting plate fixed on the speed changing drum and the driving column rotate clockwise together, so that the driving column arranged eccentrically is separated from the parking arm, under the reset pretightening force, the parking arm rotates in a translation manner and rotates clockwise around the parking shaft, when the parking arm is disengaged from the parking gear, the parking arm returns to the original position through the limiting part, the parking accuracy and reliability of the parking mechanism are improved, the manufacturing difficulty and cost are reduced, and abnormal mechanical noise is avoided, and the structure is simple.
Further, the parking arm is of a triangle-like structure; one side of the triangle-like structure is provided with meshing teeth which can be meshed with the parking gear, one corner adjacent to the setting side of the meshing teeth is rotatably hinged to the box body, and one corner far away from the setting side of the meshing teeth is arranged close to the shifting plate; the parking mechanism is beneficial to improving the parking accuracy and reliability, reduces the manufacturing difficulty and cost and avoids abnormal mechanical noise.
Furthermore, one corner of the triangle-like structure close to the shifting plate is an obtuse angle; do benefit to structural configuration, the meshing tooth of parking arm is conformal with the external tooth of parking gear and is set up, further does benefit to the parking accuracy and the reliability that promote parking mechanism.
Further, the dial plate is a five-star dial plate or a six-star dial plate.
The shifting plate is fixed at the end of the shifting shaft far away from the shifting shaft, and the driving column is eccentrically arranged at the end of the shifting plate far away from the shifting shaft; do benefit to and realize the rotation drive to dialling board and drive column through the drive to the variable speed drum to do benefit to and realize the parking function through the meshing that realizes parking arm and parking gear.
Further, the driving arm is rotatably hinged to the box body through a parking shaft; one end of a return elastic piece sleeved on the parking axle is buckled on the parking arm, the other end of the return elastic piece is clamped on the box body, and the parking arm is pushed to a release position under the action of resilience force; the return elastic part such as a return torsion spring can realize compression deformation of the return torsion spring during anticlockwise rotation of the parking arm and rebound during clockwise rotation of the parking arm in a mode of clamping one end of the return torsion spring to the parking arm and relatively fixing the other end of the return torsion spring; the device is beneficial to the compression of a return elastic element such as a return torsion spring when the force is applied and the rebound when the parking arm is separated from the driving column so as to drive the disengagement of the parking arm and the parking gear.
Further, the parking shaft is arranged in a shaft hole formed in the box body and forms axial limiting through the box cover; the parking shaft is convenient to arrange and fix, and the axial direction is the axial direction of the parking shaft.
Furthermore, a groove communicated with the shaft hole is formed inwards at the end, close to the shaft cover, of the shaft hole, and the return elastic piece is arranged at the position corresponding to the groove; the parking arm is arranged on the side of the return elastic piece close to the end cover; the return elastic piece arranged at the groove extends out of the groove along the radial direction of the shaft hole and is clamped to the parking arm as one end of the return torsion spring, and the other end of the return elastic piece is clamped to the notch of the corresponding groove of the box body, so that the return elastic piece is limited, and the function of the return elastic piece is favorably exerted.
Further, the parking device also comprises a limiting piece used for limiting the parking arm when the parking arm rotates reversely; the limiting part is like a limiting screw or a limiting pin shaft, and the fixing of the limiting part belongs to the prior art, and is not repeated herein.
Furthermore, the limiting piece is fixed on the box body or the parking arm and is positioned on the side, far away from the parking gear, of the parking arm; the limiting piece is a limiting screw or a limiting pin shaft; the parking accuracy and reliability of the parking mechanism are further improved, and abnormal mechanical noise is avoided.
The utility model also provides an engine, engine has as above parking mechanism.
The utility model has the advantages that:
the utility model discloses an engine parking mechanism and engine, when hanging P and keeping off the position, the gear level axle drives the variable speed drum anticlockwise rotation, is fixed in group board and the drive column on the variable speed drum anticlockwise rotation together thereupon for the drive column of eccentric settings contacts with parking arm, and promotes parking arm translation around parking axle rotation, and when parking arm anticlockwise rotation thereupon, the meshing tooth that parking arm corresponds the side and sets up can with parking gear engagement, thereby realizes the parking, can receive a return pretightning force simultaneously; and when the parking is not needed, the gear shifting shaft drives the speed changing drum to rotate clockwise, the shifting plate fixed on the speed changing drum and the driving column rotate clockwise together, so that the driving column arranged eccentrically is separated from the parking arm, under the reset pretightening force, the parking arm rotates in a translation manner and rotates clockwise around the parking shaft, when the parking arm is disengaged from the parking gear, the parking arm returns to the original position through the limiting part, the parking accuracy and reliability of the parking mechanism are improved, the manufacturing difficulty and cost are reduced, and abnormal mechanical noise is avoided, and the structure is simple.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram (parking state) of the present invention;
fig. 3 is a schematic structural diagram (non-parking state) of the present invention.
Detailed Description
Fig. 1 is a schematic structural view of the present invention; fig. 2 is a schematic structural diagram (parking state) of the present invention; fig. 3 is a schematic structural diagram (non-parking state) of the present invention, and as shown in the figure, the engine parking mechanism of the present embodiment includes a parking gear 1, a parking arm 2 engageable with or disengageable from the parking gear 1, and an actuator for driving the parking arm 2 to engage with or disengage from the parking gear 1;
the actuating mechanism comprises a shifting plate 3 eccentrically provided with a driving column, the shifting plate 3 can be driven to drive the driving column 31 to eccentrically rotate, and the driving column 31 can act on the parking arm 2 when eccentrically rotating, so that the parking arm 2 and the parking gear 1 form parking engagement; the parking arm 2 is also provided with a return pretightening force for disengaging from the parking gear; the parking arm 2 is of a triangle-like structure, one end of the parking arm is rotatably hinged to the box body 7, and the other end of the parking arm is provided with meshing teeth 21; the eccentric arrangement of the driving column 31 is beneficial to realizing the contact with the parking arm 2 and the separation from the parking arm 2 when the driving column rotates along with the shifting plate 3, so as to be beneficial to realizing the parking function; when parking, the driving column 31 is driven to contact the parking arm 2 and push the parking arm 2 to rotate around the parking shaft 4, so that the engagement transmission of the parking arm 2 and the parking gear 1 is realized; when the driving column 31 is driven to rotate reversely, the parking arm 2 is separated from the driving column 31 and rotates reversely under the return pretightening force, so that the parking arm is separated from the parking gear 1; preferably, the driving column 31 and the dial plate 2 are integrally formed, and the integral forming technology belongs to the prior art and is not described herein again; when the gear P is engaged, the gear shifting shaft drives the gear shifting drum 10 to rotate anticlockwise, the shifting plate 3 and the driving column 31 fixed on the gear shifting drum 10 rotate anticlockwise along with the gear shifting shaft, so that the eccentrically arranged driving column 31 is in contact with the parking arm 2 and pushes the parking arm 2 to translate and rotate around the parking shaft 4, and the engaging teeth 21 arranged on the corresponding side of the parking arm 2 are engaged with the parking gear 1 while the parking arm 2 rotates anticlockwise along with the gear shifting shaft, so that parking is realized, and meanwhile, a return pretightening force is applied; when parking is not needed, the gear shifting shaft drives the speed changing drum 10 to rotate clockwise, the shifting plate 3 and the driving column 31 fixed on the speed changing drum 10 rotate clockwise along with the shifting plate, the driving column 31 which is eccentrically arranged is separated from the parking arm 2, under the reset pretightening force, the parking arm 2 rotates in a translation mode and rotates clockwise around the parking shaft 4, the parking arm 2 is disengaged from the parking gear 1, the parking arm 2 is limited by the limiting part 6 to return to the original position, the parking accuracy and reliability of the parking mechanism are improved, the manufacturing difficulty and cost are reduced, abnormal mechanical noise is avoided, and the structure is simple.
In this embodiment, the parking arm 2 is a triangle-like structure; one side of the triangle-like structure is provided with meshing teeth 21 which can be meshed with the parking gear 1, one corner adjacent to the side where the meshing teeth 21 are arranged is rotatably hinged to the box body 7, and one corner far away from the side where the meshing teeth 21 are arranged is close to the shifting plate 3; the parking mechanism is beneficial to improving the parking accuracy and reliability, reduces the manufacturing difficulty and cost and avoids abnormal mechanical noise.
In this embodiment, one corner of the triangle-like structure close to the dial plate 3 is an obtuse angle; do benefit to structural configuration, the meshing tooth 21 of parking arm 2 is conformal with the external tooth of parking gear 1 and is set up, further does benefit to the parking accuracy and the reliability that promote the parking mechanism.
In this embodiment, the dial plate 3 is a five-star dial plate or a six-star dial plate.
In the embodiment, the gear shifting device further comprises a speed changing drum 10 in transmission connection with the gear shifting shaft, the shifting plate 3 is fixed at the end, far away from the gear shifting shaft, of the speed changing drum 10, and the driving column 31 is eccentrically arranged at the end, far away from the speed changing drum 10, of the shifting plate 3; the rotation driving of the shifting plate 3 and the driving column 31 is realized by driving the speed changing drum 10, so that the parking function is realized by realizing the engagement of the parking arm 2 and the parking gear 1; the shifting plate 31 can be fixed to the end of the shifting drum far away from the shifting shaft (i.e. the shifting plate 3 is correspondingly provided with a mounting hole 32), and the shifting rod 31 is arranged on the shifting plate 3 far away from the shifting drum 10.
In this embodiment, the driving arm 2 is rotatably hinged to the box body 7 through the parking axle 4; one end of a return elastic piece 5 sleeved on the parking axle 4 is buckled on the parking arm 2, the other end of the return elastic piece is clamped on the box body 7, and the parking arm 2 is pushed to a release position when rebounding; the return elastic part 5 is a return torsion spring, and can realize compression deformation of the return torsion spring during counterclockwise rotation of the parking arm 2 and rebound during clockwise rotation of the parking arm 2 in a mode of clamping one end of the return torsion spring onto the parking arm 2 and relatively fixing the other end of the return torsion spring; the compression of a return elastic element such as a return torsion spring when the force is applied and the rebound when the parking arm is separated from the driving column are facilitated to drive the disengagement of the parking arm 2 and the parking gear 1.
In this embodiment, the parking shaft 4 is disposed in a shaft hole 71 provided in the case 7 and forms an axial limit through the case cover 8; the parking shaft 4 is fixed, and the axial direction is the axial direction of the parking shaft 4.
In this embodiment, the shaft hole 71 is provided with a groove 72 corresponding to the end close to the shaft cover 8 and communicating with the shaft hole, and the return elastic member 5 is provided corresponding to the groove 72; the parking arm 2 is arranged on the side, close to the end cover 8, of the return elastic piece 5; the return elastic member 5 placed in the groove 72 extends out of the groove along the radial direction of the shaft hole 71 and is clamped to the parking arm 2 (if the parking arm 2 is correspondingly provided with the hole 52 for clamping the corresponding end of the return torsion spring), and the other end of the return elastic member is clamped to the notch of the corresponding groove of the box body 7, so that the return elastic member 5 is limited, and the function of the return elastic member 5 is favorably exerted.
In this embodiment, the parking device further includes a limiting member 6 for limiting the parking arm 2 when rotating in the reverse direction; the limiting part 6 is fixed as a limiting screw or a limiting pin shaft, and the fixing of the limiting part 6 belongs to the prior art, and is not repeated herein.
In this embodiment, the limiting member 6 is fixed to the box body or the parking arm 2 and is located on the side of the parking arm 2 far away from the parking gear 1; the limiting piece 6 is a limiting screw or a limiting pin shaft; the parking accuracy and reliability of the parking mechanism are further improved, and abnormal mechanical noise is avoided.
The embodiment also provides an engine, and the engine is provided with the parking mechanism.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (10)
1. An engine parking mechanism is characterized by comprising a parking gear, a parking arm which can be engaged with or disengaged from the parking gear, and an actuating mechanism for driving the parking arm to be engaged with or disengaged from the parking gear;
the actuating mechanism comprises a shifting plate eccentrically provided with a driving column, the shifting plate can be driven to drive the driving column to eccentrically rotate, and the driving column can act on the parking arm when eccentrically rotating so that the parking arm and the parking gear form parking engagement; the parking arm is also provided with a return pretightening force for disengaging from the parking gear.
2. The engine park mechanism of claim 1, wherein the park arm is of a triangular-like configuration; one side of the triangle-like structure is provided with meshing teeth which can be meshed with the parking gear, one corner adjacent to the side where the meshing teeth are arranged is rotatably hinged to the box body, and one corner far away from the side where the meshing teeth are arranged is close to the shifting plate.
3. The engine park mechanism of claim 2, wherein a corner of the triangle-like structure adjacent to the paddle is an obtuse angle.
4. The engine park mechanism according to claim 1, characterized in that the dial plate is a five-star dial plate or a six-star dial plate; still include the transmission and connect in the variable speed drum of selector shaft, dial the board and be fixed in keeping away from the axle head of shifting of variable speed drum, drive post eccentric settings is in dialling keeping away from the variable speed drum end of board.
5. The engine park mechanism of claim 1, wherein the actuating arm is rotatably hinged to the housing by a park axle; one end of a return elastic piece sleeved on the parking axle is buckled on the parking arm, and the other end of the return elastic piece is clamped on the box body and pushes the parking arm to a release position when resilience force is generated.
6. The engine park mechanism of claim 5, wherein the parking shaft is disposed in a shaft hole provided in the case and is axially restrained by the case cover.
7. The engine parking mechanism according to claim 6, wherein the shaft hole is provided with a groove corresponding to the end close to the shaft cover and communicated with the shaft hole inwards, and the return elastic member is arranged corresponding to the groove; the parking arm is arranged on the side of the return elastic piece close to the end cover.
8. The engine park mechanism according to claim 5, further comprising a limit member for limiting the rotation of the parking arm in the reverse direction.
9. The engine parking mechanism according to claim 8, wherein the stopper is fixed to the housing or the parking arm on a side of the parking arm away from the parking gear; the limiting part is a limiting screw or a limiting pin shaft.
10. An engine characterized by having the parking mechanism of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020729390.7U CN212643515U (en) | 2020-05-06 | 2020-05-06 | Engine parking mechanism and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020729390.7U CN212643515U (en) | 2020-05-06 | 2020-05-06 | Engine parking mechanism and engine |
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| Publication Number | Publication Date |
|---|---|
| CN212643515U true CN212643515U (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020729390.7U Active CN212643515U (en) | 2020-05-06 | 2020-05-06 | Engine parking mechanism and engine |
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| CN (1) | CN212643515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116241655A (en) * | 2023-05-08 | 2023-06-09 | 盛瑞传动股份有限公司 | Parking structure and gearbox |
-
2020
- 2020-05-06 CN CN202020729390.7U patent/CN212643515U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116241655A (en) * | 2023-05-08 | 2023-06-09 | 盛瑞传动股份有限公司 | Parking structure and gearbox |
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