CN220792020U - Gear shifting executing mechanism and vehicle - Google Patents

Abstract

The utility model discloses a gear shifting executing mechanism and a vehicle, and belongs to the technical field of vehicles. According to the gear shifting executing mechanism and the vehicle, the self-locking pin can be abutted against the self-locking block under the elastic action of the elastic piece, the self-locking pin can move along the surface of the self-locking block in the process that the self-locking block rotates along with the gear shifting rocker arm so as to switch among the plurality of self-locking grooves, when the gear shifting finger drives the corresponding gear shifting block to switch to a target gear, the self-locking pin can be inserted into the corresponding self-locking groove to lock the gear shifting rocker arm, and further the corresponding gear shifting block is kept in a target gear-shifting state, namely, the transmission is kept in the target gear, so that the automatic gear-shifting problem of the transmission caused by slight vibration due to poor road conditions in the driving process of the vehicle is solved, and the target gear is kept in a correct gear. Meanwhile, the self-locking assembly is simple in structure, small in size and easy to arrange in a narrow gear shifting executing mechanism, and the layout of the existing gear shifting executing mechanism is not required to be changed.

Description

Gear shifting executing mechanism and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a gear shifting executing mechanism and a vehicle.

Background

The electro-mechanical automatic transmission (Automated Mechan ica l Transmi ss ion, AMT) is an improvement over conventional manual gear type transmissions, which incorporates the electro-mechanical integrated automatic transmission of both AT (automatic) and MT (manual) advantages. The AMT reforms the traditional manual transmission by advanced electronic technology, not only maintains the advantages of high efficiency and low cost of the original gear transmission, but also has all the advantages brought by adopting automatic gear shifting for the hydraulic automatic transmission. It is popular with all drivers with special economy, convenience, safety and comfort, and becomes a hot spot for development in various countries.

Currently, according to different actuating mechanism power sources, gear selecting and shifting actuating mechanisms of the AMT can be divided into three types of electric control electric motor, electric control pneumatic motor and electric control hydraulic motor. On passenger cars and buses, the electric control electric gear selecting and shifting actuating mechanism has the advantages of relatively simple structure, rapid and accurate action, easy accurate control and the like, and is widely applied.

The body of the existing AMT electric multi-gear shifting actuating mechanism is not provided with a self-locking device, and for the AMT with the gearbox body not provided with the self-locking function, the automatic transmission target gear is in automatic gear disengagement risk after gear engagement is successful.

Disclosure of Invention

The utility model aims to provide a gear shifting executing mechanism and a vehicle, which can realize the locking of a target gear and solve the problem of automatic gear disengagement of a transmission.

In order to achieve the above object, the following technical scheme is provided:

in one aspect, a shift actuator is provided, the shift actuator comprising:

a housing;

a shift finger connectable with a plurality of gear dials of a transmission;

the gear selecting driving piece can drive the gear shifting finger to translate for gear selection;

the gear shifting rocker arm is sleeved on the outer side of the gear shifting shaft and is fixedly connected with the gear shifting shaft, and the gear shifting finger sleeve is arranged on the outer side of the gear shifting shaft, can translate along the gear shifting shaft and is limited to rotate around the gear shifting shaft;

the gear shifting driving piece can drive the gear shifting rocker arm to rotate so as to drive the gear shifting finger to rotate for gear shifting;

the shift actuator further includes:

the self-locking assembly comprises a mounting seat, a self-locking pin, an elastic piece and a self-locking block, wherein the mounting seat is fixedly arranged on the shell, the self-locking pin is slidably arranged on the mounting seat, the self-locking block is fixedly arranged on the gear shifting rocker arm, the elastic piece is configured to enable the self-locking pin to always have a movement trend close to the self-locking block, a plurality of self-locking grooves are formed in one side of the self-locking block, which faces to the self-locking pin, the self-locking block can rotate along with the gear shifting rocker arm, so that the self-locking pin can be alternatively inserted into a plurality of self-locking grooves and can be switched among the self-locking grooves, and the gear shifting rocker arm is locked.

As an alternative scheme of the gear shifting actuating mechanism, one end surface of the self-locking pin inserted into the self-locking groove is of an arc-shaped structure.

As an alternative scheme of the gear shifting actuating mechanism, a convex part is formed between two adjacent self-locking grooves, and the top end of the convex part is of an arc-shaped structure.

As an alternative scheme of the gear shifting actuating mechanism, the self-locking groove is a V-shaped groove.

As an alternative to the gear shift actuator, the mounting seat is screwed with the housing.

As an alternative to the gear shift actuator, the housing is provided with a mounting hole penetrating through a housing wall thereof;

the mounting seat comprises a mounting portion and a holding portion, the mounting portion is in threaded connection with the mounting hole, and the holding portion is located on the outer side of the shell.

As an alternative to the gear shift actuator, the grip is provided with a sealing edge for sealing the mounting hole, which sealing edge can abut against the housing outer wall.

As an alternative scheme of the gear shifting actuating mechanism, the mounting seat is provided with a connecting hole, one end of the self-locking pin is slidably arranged in the connecting hole, and the elastic piece is arranged between one end of the self-locking pin and the inner wall of the connecting hole.

As an alternative to the shift actuator, the self-locking block is fixed to the shift rocker arm by a locking member.

In another aspect, there is provided a vehicle comprising a transmission and a shift actuator as claimed in any one of the preceding claims, the transmission comprising a plurality of gear dials, the shift finger being selectively connectable with a plurality of the gear dials.

Compared with the prior art, the utility model has the beneficial effects that:

when the gear shifting actuating mechanism and the vehicle are in gear shifting or gear shifting action, the gear selecting driving piece drives the gear shifting finger to translate so that the gear shifting finger is switched among a plurality of gear selecting positions to select gears, namely the gear shifting finger is connected with a corresponding gear shifting block after being switched to a target gear selecting position, and then the gear shifting driving piece drives the gear shifting rocker arm to rotate and drives the gear shifting finger to rotate so that the gear shifting finger drives the corresponding gear shifting block to translate, and further the corresponding gear shifting block is switched among a plurality of gear shifting states of the gear selecting positions to shift gears, namely the transmission is switched to a target gear when the corresponding gear shifting block is switched to the target gear shifting state; meanwhile, the self-locking pin can be abutted against the self-locking block under the elastic action of the elastic piece, the self-locking pin can move along the surface of the self-locking block in the rotating process of the self-locking block along with the gear shifting rocker arm so as to switch among a plurality of self-locking grooves, when the gear shifting finger drives the corresponding gear shifting block to switch to a target gear, the self-locking pin can be inserted into the corresponding self-locking groove to lock the gear shifting rocker arm, and further the corresponding gear shifting block is kept in a target gear-in state, namely, the transmission is kept in the target gear, the target gear locking after the gear is successfully shifted and disengaged can be realized, the problem that the transmission is automatically out of gear due to slight vibration caused by poor road conditions and the like during the running of a vehicle is solved, and the target gear is maintained to be correctly in gear. Meanwhile, the self-locking assembly is simple in structure, small in size and easy to arrange in a narrow gear shifting executing mechanism, can be directly matched with the existing gear shifting executing mechanism to be used, and does not need to change the layout of the existing gear shifting executing mechanism.

Drawings

FIG. 1 is a schematic diagram of a shift actuator according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a shift actuator according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a block assembly according to an embodiment of the present utility model.

Reference numerals:

1. a housing; 11. a mounting hole; 2. a shift finger; 3. a gear selection driving member; 4. a shift rocker arm; 5. a shift drive; 51. a shift motor; 52. a screw rod; 53. a nut; 6. a dial assembly; 61. a gear shifting block; 7. a shift shaft; 8. a self-locking assembly; 81. a mounting base; 811. a mounting part; 812. a holding part; 8121. a sealing edge; 82. a self-locking pin; 83. an elastic member; 84. a self-locking block; 841. self-locking grooves.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

As shown in fig. 1 to 3, the present embodiment provides a shift actuator and a vehicle, the vehicle includes a transmission including a plurality of gear shift blocks 61, and the shift actuator includes a housing 1, a shift finger 2, a gear selection drive member 3, a shift rocker arm 4, a shift drive member 5, and a shift shaft 7, the shift finger 2 being capable of selectively connecting with the plurality of gear shift blocks 61 of the transmission; the gear selection driving piece 3 can drive the gear shifting finger 2 to translate for gear selection; the gear shifting rocker arm 4 is rotatably arranged in the shell 1; the gear shifting shaft 7 is rotatably arranged in the shell 1, the gear shifting finger 2 is sleeved on the outer side of the gear shifting shaft 7 and can translate along the gear shifting shaft 7 and is limited to rotate around the gear shifting shaft 7, and the gear shifting rocker arm 4 is sleeved on the outer side of the gear shifting shaft 7 and is fixedly connected with the gear shifting shaft 7; the gear shifting driving piece 5 can drive the gear shifting rocker arm 4 to rotate so as to drive the gear shifting finger 2 to rotate for gear shifting. The gear shifting shaft 7 is a spline shaft, the gear shifting finger 2 is sleeved outside the spline shaft and can translate along the spline shaft, and the gear shifting rocker arm 4 is sleeved outside the spline shaft and is fixedly connected with the spline shaft. The gear selection driving piece 3 can drive the shift finger 2 to translate along the shift shaft 7 so as to enable the shift finger 2 to switch among a plurality of gear selection positions for gear selection; the gear shifting driving piece 5 can drive the gear shifting rocker arm 4 to rotate, and then drives the gear shifting shaft 7 to rotate, the gear shifting shaft 7 drives the gear shifting finger 2 to rotate, and the gear shifting finger 2 drives the corresponding gear shifting block 61 of the transmission to translate, so that the corresponding gear shifting block 61 is switched among a plurality of gear shifting states in the same gear selecting position to shift gears.

The gear shifting executing mechanism further comprises a self-locking assembly 8, the self-locking assembly 8 comprises a mounting seat 81, a self-locking pin 82, an elastic piece 83 and a self-locking block 84, the mounting seat 81 is fixedly arranged on the shell 1, the self-locking pin 82 is slidably arranged on the mounting seat 81, the self-locking block 84 is fixedly arranged on the gear shifting rocker arm 4, the elastic piece 83 is configured to enable the self-locking pin 82 to always have a movement trend close to the self-locking block 84, a plurality of self-locking grooves 841 are formed in one side, facing to the self-locking pin 82, of the self-locking block 84, the self-locking block 84 can rotate along with the gear shifting rocker arm 4, so that the self-locking pin 82 can be alternatively inserted into the plurality of self-locking grooves 841 and can be switched among the plurality of self-locking grooves 841 to lock the gear shifting rocker arm 4.

In this embodiment, when a gear shift or gear shift is performed, the gear selection driving member 3 drives the shift finger 2 to translate, so that the shift finger 2 switches among a plurality of gear selection positions to select a gear, after the shift finger 2 switches to a target gear selection position, that is, the shift finger 2 is connected with the corresponding gear shifting block 61, then the shift driving member 5 drives the shift rocker arm 4 to rotate and drives the shift finger 2 to rotate, so that the shift finger 2 drives the corresponding gear shifting block 61 to translate, and further the corresponding gear shifting block 61 switches among a plurality of gear shift states of the gear selection position to shift, that is, when the corresponding gear shifting block 61 switches to the target gear shift state, the transmission switches to the target gear; meanwhile, the self-locking pin 82 can abut against the self-locking block 84 under the action of the elastic force of the elastic piece 83, the self-locking pin 82 can move along the surface of the self-locking block 84 in the process that the self-locking block 84 rotates along with the gear shifting rocker arm 4 so as to switch among the plurality of self-locking grooves 841, when the gear shifting finger 2 drives the corresponding gear shifting block 61 to switch to the target gear, the self-locking pin 82 can be inserted into the corresponding self-locking groove 841 to lock the gear shifting rocker arm 4, and further the corresponding gear shifting block 61 is ensured to be kept in the target gear, namely, the transmission is kept in the target gear, the target gear is locked after the gear shifting and the gear shifting are successfully carried out, the problem that the transmission is automatically out due to slight vibration caused by poor road conditions during the vehicle driving is solved, and the target gear is maintained to be correctly in the gear shifting.

Meanwhile, the self-locking assembly 8 is simple in structure, small in size and easy to arrange in a narrow gear shifting executing mechanism, can be directly matched with the existing gear shifting executing mechanism to use, and does not need to change the layout of the existing gear shifting executing mechanism.

In this embodiment, the gear shift driving piece 5 includes a gear shift motor 51 and a screw nut assembly, the screw nut assembly includes a screw 52 connected with the gear shift motor 51 and a nut 53 screwed to the screw 52, one end of the gear shift rocker arm 4 is fixedly connected with the gear shift shaft 7, the other end is provided with a sliding groove, the nut 53 is provided with a sliding block inserted in the sliding groove, the sliding block can slide along the sliding groove and rotate in the sliding groove, and then the nut 53 translates along the screw 52 to drive the gear shift rocker arm 4 to rotate.

It should be noted that, the shifting block assembly 6 of the transmission is provided with a plurality of gear selecting positions, and each gear selecting position is provided with a plurality of gear engaging states, each gear selecting position corresponds to one gear shifting block 61, and each gear shifting block 61 can translate under the driving of the gear shifting finger 2 so as to switch between the plurality of gear engaging states of the gear selecting position.

In this embodiment, as shown in fig. 3, the shifting block assembly 6 is provided with three gear selecting positions, which are respectively designated as a gear selecting position P1, a gear selecting position P2 and a gear selecting position P3, each gear selecting position is provided with two gear engaging states, which are respectively designated as an a side gear and a B side gear, so in this embodiment, the shifting block assembly 6 is provided with six gears, and a neutral gear of the gear selecting position is located between the a side gear and the B side gear of the same gear selecting position, and three gear shifting blocks 61 shown in fig. 3 are all in the neutral gear. Correspondingly, as shown in fig. 1 and 2, the self-locking block 84 is provided with three self-locking grooves 841, and the three self-locking grooves 841 are sequentially arranged along the extending direction of the gear shifting finger 2, for convenience of description, the self-locking groove 841 located in the middle of the self-locking block 84 is the middle self-locking groove, then the self-locking groove 841 located on the upper side of the middle self-locking groove is denoted as an upper side self-locking groove, and the self-locking groove 841 located on the lower side of the middle self-locking groove is denoted as a lower side self-locking groove.

Illustratively, when the TCU issues a gear-off instruction, the gear-off motor 51 of the gear-off executing mechanism works to overcome the gear-off force and the resistance of the elastic member 83, and drive the screw-nut assembly to run, the nut 53 drives the gear-off rocker arm 4 to swing and run back to the middle position of the screw 52, the gear-off finger 2 moves back to the idle gear position along with the gear-off shaft 7 and the gear-off rocker arm 4, the gear-off sensor detects the displacement of the gear-off finger 2, and after reaching the target position, the TCU controls the gear-off motor 51 to be successfully off; meanwhile, the self-locking block 84 fastened on the gear shifting rocker arm 4 rotates along with the gear shifting rocker arm 4, the self-locking pin 82 enters the middle self-locking groove 841 from the upper side self-locking groove 841 or the lower side self-locking groove 841 under the action of the elastic force of the elastic member 83, and is pressed on the bottom of the middle self-locking groove 841 under the action of the elastic force of the elastic member 83, so that self-locking of the neutral gear position is realized. When the TCU issues a gear engaging command to the a side and the gear is engaged successfully, the self-locking pin 82 correspondingly enters the upper side self-locking groove 841 and is pressed into the upper side self-locking groove 841 under the elastic force of the elastic member 83, so as to realize locking. When the TCU issues a gear engaging command to the B side and the gear is engaged successfully, the self-locking pin 82 correspondingly enters the lower side self-locking groove 841 and is pressed into the lower side self-locking groove 841 under the elastic force of the elastic member 83 to perform locking. The locking of each gear position is realized, the target gear is kept to be correctly in gear, and the problem of automatic gear release is avoided.

Optionally, the end surface of the self-locking pin 82 inserted into the self-locking groove 841 has an arc-shaped structure. So configured, the self-locking pin 82 is facilitated to move along the surface of the self-locking block 84 to switch between the plurality of self-locking grooves 841. Illustratively, the end of the self-locking pin 82 inserted into the self-locking groove 841 is of a spherical or hemispherical structure.

In this embodiment, from lockpin 82 includes cylinder section and circular cone section, and the bottom of circular cone section is connected in cylinder section one end, and the top and the auto-lock groove 841 grafting cooperation of circular cone section, the other end and the mount pad 81 sliding connection of cylinder section, and the top of circular cone section is hemispherical structure, so sets up, and not only manufacturability is good, the processing of being convenient for, and the setting of circular cone section can not produce the interference with other parts in the casing 1 moreover, the overall arrangement of being convenient for.

Optionally, a protrusion is formed between two adjacent self-locking grooves 841, and the top end of the protrusion has an arc structure. In other words, the contact surface of the self-locking block 84 and the self-locking pin 82 is a smooth transition curved surface, so that the self-locking pin 82 can be conveniently and stably stretched, and the stability and reliability of the self-locking assembly 8 can be improved.

Optionally, the self-locking groove 841 is a V-groove. The groove walls of the V-shaped groove are inclined so that the self-locking pin 82 moves along the groove walls of the self-locking groove 841 to switch between the plurality of self-locking grooves 841.

Optionally, the mounting base 81 is screwed with the housing 1, so as to facilitate rapid dismounting of the mounting base 81.

Optionally, the housing 1 is provided with mounting holes 11 through its housing wall; the mounting seat 81 comprises a mounting portion 811 and a holding portion 812, the mounting portion 811 is in threaded connection with the mounting hole 11, the holding portion 812 is located on the outer side of the shell 1, and therefore the mounting seat 81 is conveniently assembled from the outer side of the shell 1 through clamping the holding portion 812, and operation is convenient. When the self-locking assembly 8 is added to the existing gear shifting executing mechanism, the installation of the installation seat 81 can be realized only by arranging the installation hole 11 with the internal thread on the shell 1, the modification is small, the implementation is easy, and the layout of the existing gear shifting executing mechanism is not required to be changed. When the gear shifting executing mechanism does not need the self-locking component 8, the mounting seat 81 is only required to be screwed on the shell 1, the self-locking pin 82, the elastic piece 83 and the self-locking block 84 are not assembled, the normal operation of the gear shifting executing mechanism is not affected, and whether the self-locking component 8 is matched with the gear shifting executing mechanism or not can be flexibly selected according to the self-locking function of the matched transmission.

Optionally, the holding part 812 is provided with a sealing edge 8121 for sealing the mounting hole 11, the sealing edge 8121 being capable of abutting against the outer wall of the housing 1. The mounting hole 11 is covered by the sealing edge 8121, so that the sealing effect on the mounting hole 11 is realized, and the tightness of the shell 1 is ensured.

Optionally, the mounting base 81 is provided with a connecting hole, one end of the self-locking pin 82 is slidably disposed in the connecting hole, and the elastic member 83 is disposed between one end of the self-locking pin 82 and an inner wall of the connecting hole. By this arrangement, the assembly of the self-locking pin 82, the elastic member 83 and the mounting base 81 is simplified, and the self-locking pin 82 and the elastic member 83 can be easily removed from the mounting base 81 when the self-locking assembly 8 is not needed. Illustratively, the elastic member 83 is a spring, which is inexpensive and simple to assemble.

Optionally, the self-locking block 84 is fixed on the gear shifting rocker arm 4 through a locking piece, so that the self-locking block 84 is convenient to disassemble and assemble, the self-locking assembly 8 is convenient to match with the existing gear shifting executing mechanism, and the layout of the existing gear shifting executing mechanism is not required to be changed.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. A shift actuator, the shift actuator comprising:

a housing (1);

a shift finger (2), the shift finger (2) being selectively connectable to a plurality of gear shift blocks (61) of the transmission;

a gear selection driving piece (3), wherein the gear selection driving piece (3) can drive the shift finger (2) to translate for gear selection;

the gear shifting rocker arm (4) and a gear shifting shaft (7), wherein the gear shifting shaft (7) is rotatably arranged in the shell (1), the gear shifting rocker arm (4) is sleeved on the outer side of the gear shifting shaft (7) and is fixedly connected with the gear shifting shaft (7), and the gear shifting finger (2) is sleeved on the outer side of the gear shifting shaft (7) and can translate along the gear shifting shaft (7) and is limited to rotate around the gear shifting shaft (7);

the gear shifting driving piece (5) can drive the gear shifting rocker arm (4) to rotate so as to drive the gear shifting finger (2) to rotate for gear shifting;

the gear shifting executing mechanism is characterized by further comprising:

the self-locking assembly (8), self-locking assembly (8) include mount pad (81), auto-lock round pin (82), elastic component (83) and auto-locking piece (84), mount pad (81) set firmly in casing (1), auto-lock round pin (82) slidable locate mount pad (81), auto-lock piece (84) set firmly in rocker arm (4) of shifting, elastic component (83) are configured to make auto-lock round pin (82) have all the time and be close to the trend of motion of auto-lock round pin (84), auto-lock round pin (84) face one side of auto-lock round pin (82) is equipped with a plurality of self-locking groove (841), auto-lock round pin (84) can be along with rocker arm (4) rotation of shifting, so that auto-lock round pin (82) can alternatively insert and locate a plurality of auto-locking groove (841) and can switch between a plurality of auto-locking groove (841) in order to lock rocker arm (4) of shifting.

2. The gear shift actuator according to claim 1, wherein an end surface of the self-locking pin (82) inserted into the self-locking groove (841) has an arc-shaped structure.

3. Gear shift actuator according to claim 1, characterized in that a protrusion is formed between two adjacent self-locking grooves (841), the top end of the protrusion having an arc-shaped structure.

4. The shift actuator according to claim 1, wherein the self-locking groove (841) is a V-groove.

5. Gear shift actuator according to claim 1, characterized in that the mounting (81) is screwed with the housing (1).

6. Gear shift actuator according to claim 5, characterized in that the housing (1) is provided with a mounting hole (11) through its housing wall;

the mounting seat (81) comprises a mounting portion (811) and a holding portion (812), the mounting portion (811) is in threaded connection with the mounting hole (11), and the holding portion (812) is located on the outer side of the shell (1).

7. The shift actuator according to claim 6, characterized in that the grip portion (812) is provided with a sealing edge (8121) for sealing the mounting hole (11), which sealing edge (8121) is abuttable against the outer wall of the housing (1).

8. Gear shift actuator according to claim 5 or 6, wherein the mounting seat (81) is provided with a connecting hole, one end of the self-locking pin (82) is slidably arranged in the connecting hole, and the elastic member (83) is arranged between one end of the self-locking pin (82) and the inner wall of the connecting hole.

9. The shift actuator according to claim 1, characterized in that the self-locking block (84) is fixed to the shift rocker arm (4) by a locking member.

10. A vehicle comprising a transmission and a gear shift actuator according to any one of claims 1 to 9, said transmission comprising a plurality of gear dials (61), said shift finger (2) being selectively connectable with a plurality of said gear dials (61).