Shift mechanism, powertrain and vehicle

Abstract

The present invention provides a shift mechanism, a power assembly and a vehicle, comprising: a linear motor, a motor guide rail, a connecting block and a shift fork; the linear motor and the motor guide rail are in sliding fit; the connecting block is arranged on the side of the motor guide rail away from the linear motor and is connected to the linear motor; the shift fork is connected to the connecting block. By slidingly matching the linear motor with the motor guide rail, connecting the linear motor to the connecting block, and connecting the other end of the connecting block to the shift fork, the present invention replaces the worm and worm gear or ball screw form, eliminates the mechanical transmission structure, has a simple structure, directly drives the shift fork to move by the linear motor, has high control precision, eliminates the positioning and assembly errors brought by the intermediate links, and has a rapid response and high sensitivity.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and particularly to a shifting mechanism, a powertrain and a vehicle. Background Art

[0002] In recent years, AMT shifting actuators have been widely used in commercial and vehicle transmissions. With the maturity of automatic transmission technology and the increasingly fierce competition in the Chinese automotive automatic transmission market, higher requirements have been put forward for the shifting performance of AMT boost cylinders. The AMT shift and select actuator mainly consists of three parts: a clutch actuator, an accelerator actuator, and a shift and select actuator. Among them, the shift and select actuator is the execution unit of the shifting action and an important part of the electronically controlled mechanical automatic transmission. Its working performance plays a decisive role in the shifting performance of AMT. Currently, there are mainly two structural forms of the actuator.

[0003] First, the shifting actuator adopts a structure of worm and worm gear + rack and pinion. The output shaft of the motor is connected to the worm, the worm drives the worm gear to rotate, and the worm gear is then connected to the shift lever, thereby realizing the shifting operation.

[0004] Second, the shifting actuator adopts a ball screw structure. The screw is directly connected to the motor, converting the rotary motion of the motor into a linear motion and directly driving the shift lever to move.

[0005] Although the above two structural forms can complete the shifting operation, there are still problems such as low transmission efficiency, complex structure, high assembly precision requirements, easy wear of the balls, high cleanliness requirements for the raceways, and high costs. Summary of the Invention

[0006] The present invention provides a shifting mechanism to solve the problems of low transmission efficiency, complex structure, and easy wear of the balls in the prior art.

[0007] The present invention also provides a powertrain.

[0008] The present invention also provides a vehicle.

[0009] According to a shifting mechanism provided by the first aspect of the present invention, it includes: a linear motor, a motor guide rail, a connecting block, and a shift fork; the linear motor and the motor guide rail are in sliding fit; the connecting block is arranged on the side of the motor guide rail away from the linear motor and is connected to the linear motor; the shift fork is connected to the connecting block.

[0010] Specifically, in the shift mechanism in the prior art, the combination of a worm and worm gear and a rack and pinion has problems of low transmission efficiency and complex structure, and the ball screw has problems of easy wear of the balls and high requirements for the cleanliness of the raceways. In the present invention, a linear motor is slidably mated with a motor guide rail, the linear motor is connected to a connecting block, and the other end of the connecting block is connected to a fork, replacing the form of a worm and worm gear or a ball screw, eliminating the mechanical transmission structure, having a simple structure, directly driving the fork to move by the linear motor, having high control precision, eliminating the positioning and assembly errors brought by intermediate links, and having a rapid response and high sensitivity.

[0011] According to an embodiment of the present invention, it further includes: a driving part, the driving part is arranged on the connecting block and is connected to the fork for driving the rotation of the fork.

[0012] Specifically, the above shift mechanism is further provided with a driving part, the driving part is arranged on the connecting block and is connected to the fork, and the driving part directly drives the fork to rotate to realize the shift operation, eliminating the mechanical transmission structure, directly driving the fork to rotate, reducing the number and volume of the actuating mechanisms, having higher control precision, avoiding the positioning and assembly errors brought by intermediate links, and having high sensitivity.

[0013] According to an embodiment of the present invention, it further includes: a shift lever, the shift lever is respectively connected to the connecting block and the fork and is arranged along the extending direction of the motor guide rail; wherein, the driving part is arranged on the connecting block and is connected to the shift lever, and by driving the shift lever to rotate, the rotation of the fork is realized.

[0014] Specifically, for the operation of driving the fork to rotate in the above shift mechanism, a shift lever can also be set, which is connected to the connecting block and the fork, the driving part is connected to the shift lever, and the driving part drives the shift lever, and then drives the fork to rotate to complete the shift operation.

[0015] Specifically, by arranging a speed reducer between the driving part and the shift lever, when the driving part drives the shift lever to rotate, the speed can be adjusted automatically according to the shift requirement to achieve precise control.

[0016] According to an embodiment of the present invention, it further includes: a speed reducer, the speed reducer is arranged on the connecting block and is respectively connected to the driving part and the shift lever.

[0017] According to an embodiment of the present invention, it further includes: a first magnetic induction part and a second magnetic induction part; a plurality of the first magnetic induction parts are evenly arranged on one side surface of the connecting block facing the fork; a plurality of the second magnetic induction parts are arranged on one side surface of the fork cooperating with the connecting block; wherein, the rotation between the fork and the connecting block is realized through the magnetic induction action between the first magnetic induction part and the second magnetic induction part.

[0018] Specifically, when the shift lever is not provided and the shift fork is directly connected to the connecting block, multiple first magnetic induction parts are evenly distributed on the surface of the connecting block facing the shift fork, and multiple magnetic induction parts are evenly distributed on the surface of the shift fork cooperating with the connecting block. There is a magnetic induction effect between the first magnetic induction part and the second magnetic induction part, and the driving part provides a driving force to drive the shift fork to rotate, thereby realizing the shifting operation.

[0019] According to an embodiment of the present invention, it further includes: a shift lever, a first magnetic induction part, and a second magnetic induction part; one end of the shift lever is connected to the connecting block, the other end of the shift lever is connected to the shift fork, and is arranged along the extending direction of the motor guide rail; multiple first magnetic induction parts are evenly distributed around the circumference of the shift lever on the mating surface between the shift lever and the shift fork; multiple second magnetic induction parts are evenly distributed around the circumference of the shift lever on the mating surface between the shift fork and the shift fork; wherein, the first magnetic induction part and the second magnetic induction part realize the rotation between the shift fork and the connecting block through magnetic induction.

[0020] Specifically, when the shift lever is provided and the shift fork is connected to the shift lever, multiple first magnetic induction parts are evenly distributed on the mating surface between the shift lever and the shift fork, and multiple second magnetic induction parts are evenly distributed on the other mating surface between the shift lever and the shift fork. There is a magnetic induction effect between the first magnetic induction part and the second magnetic induction part, and the driving part drives the shift lever, and the shift lever then drives the shift fork to rotate, thereby realizing the shifting operation.

[0021] According to an embodiment of the present invention, the surface of the shift fork away from the linear motor is a sheet-like structure, and the sheet-like structure is inserted and matched with the slot of the gear position; wherein, multiple gear positions are arranged at intervals along the extending direction of the motor guide rail.

[0022] Specifically, the surface of the shift fork away from the linear motor is a sheet-like structure, and the sheet-like structure is inserted and matched with the slot of the gear position to realize the shifting operation. Along the extending direction of the motor guide rail, multiple gear positions are arranged at intervals. The above shifting mechanism can be used for two-speed and multi-speed mechanisms, and one shifting mechanism can control multiple gear positions.

[0023] According to an embodiment of the present invention, it further includes: a housing, the housing covers the outside of the linear motor and the motor guide rail, and is open on the side facing the connecting block.

[0024] Specifically, covering the housing outside the linear motor and the motor guide rail can avoid the situation that the linear motor and the motor guide rail are damaged by external factors, play a protective role, and ensure the control accuracy.

[0025] According to a power assembly provided in the second aspect of the present invention, it includes the above shifting mechanism.

[0026] A vehicle provided according to the third aspect of the present invention includes the above-mentioned shifting mechanism or the above-mentioned power assembly.

[0027] One or more of the above technical solutions in the present invention have at least one of the following technical effects: The shifting mechanism, power assembly and vehicle provided by the present invention, by slidingly mating a linear motor with a motor guide rail, connecting the linear motor with a connecting block, and connecting the other end of the connecting block with a fork, replace the form of worm and worm gear or ball screw, eliminate the mechanical transmission structure, have a simple structure, directly drive the fork to move by the linear motor, have high control precision, and eliminate the positioning and assembly errors brought by the intermediate links. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 It is one of the schematic structural diagrams of the shifting structure provided by the present invention;

[0030] Figure 2 It is the second schematic structural diagram of the shifting structure provided by the present invention;

[0031] Figure 3 It is the third schematic structural diagram of the shifting structure provided by the present invention;

[0032] Figure 4 It is the fourth schematic structural diagram of the shifting structure provided by the present invention;

[0033] Figure 5 It is the fifth schematic structural diagram of the shifting structure provided by the present invention;

[0034] Figure 6 It is the sixth schematic structural diagram of the shifting structure provided by the present invention.

[0035] REFERENCE NUMERALS

[0036] 10. Linear motor; 12. Motor guide rail; 20. Connecting block; 30. Fork; 32. Shift lever; 40. Driving part; 50. Reducer; 60. First magnetic induction part; 70. Second magnetic induction part; 80. Housing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0038] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the embodiments of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] According to Figure 1 As shown, the present invention provides a shift mechanism, including a linear motor 10, a housing 80, a motor guide rail 12, a connecting block 20, a reducer 50, a driving part 40 and a shift fork 30. The linear motor 10 and the motor guide rail 12 are in sliding fit and can move along the extending direction of the motor guide rail 12. The connecting block 20 is arranged on one side of the linear motor 10 and is connected to the linear motor 10. The shift fork 30 is connected to the connecting block 20. The driving part 40 is arranged between the connecting block 20 and the shift fork 30. The driving part 40 provides a driving force to drive the shift fork 30 to rotate, thereby realizing a shifting operation.

[0040] According to Figure 2 As shown, Figure 2 Another embodiment of the shift mechanism provided by the present invention is shown. The driving part 40 is not provided, and a first magnetic induction part 60 and a second magnetic induction part 70 are additionally provided. The first magnetic induction part 60 is arranged on the surface of the shift fork 30 facing the connecting block 20, and the second magnetic induction part 70 is arranged on the surface of the connecting block 20 facing the shift fork 30. The rotation of the shift fork 30 is realized through the magnetic induction between the first magnetic induction part 60 and the second magnetic induction part 70.

[0041] According to Figure 3 As shown, Figure 3Another embodiment of the shifting mechanism provided by the present invention is shown. On the basis of the above-mentioned shifting mechanism, a shift lever 32 is additionally provided, wherein the shift lever 32 is connected to the connecting block 20 and the shift fork 30, and a plurality of first magnetic induction parts 60 and second magnetic induction parts 70 are evenly arranged on the mating surface of the shift lever 32 and the shift fork 30. There is a magnetic induction effect between the first magnetic induction part 60 and the second magnetic induction part 70, thereby driving the shift fork 30 to rotate.

[0042] It should also be noted that after the shift lever 32 is provided, the initial position of the shift fork 30 can be arbitrarily adjusted. Through the linear motor 10 and the motor guide rail 12, compared with not setting the shift lever 32, a larger range of movement can be achieved. Without setting the shift lever 32, the shift fork 30 is directly connected to the connecting block 20. Although the moving range is determined by the length of the motor guide rail 12, the shift lever 32 is omitted, the structure is simplified, the transmission accuracy is improved, and the space required for installation is also smaller.

[0043] According to Figure 4 shown, Figure 4 Another embodiment of the shifting mechanism provided by the present invention is shown. The first magnetic induction part 60 and the second magnetic induction part 70 are not provided, and a driving part 40 and a speed reducer 50 are additionally provided. Among them, the driving part 40 is connected to the connecting block 20 and the speed reducer 50, and the speed reducer 50 is arranged on the connecting block 20. The shift lever 32 is driven to rotate through the driving part 40, and then the shift fork 30 is driven to rotate to realize the shifting operation.

[0044] According to Figure 5 shown, Figure 5 is Figure 4 the left view of. The linear motor 10 is slidably matched with the motor guide rail 12 to realize the movement along the extending direction of the motor guide rail 12. The linear motor 10 and the motor guide rail 12 are covered with a housing 80 to play a protective role. One end of the shift lever 32 is connected to the shift fork 30, and the other end is connected to the connecting block 20. The surface of the shift fork 30 away from the linear motor 10 is a sheet-like structure, and is inserted and matched with the slot of the gear through the sheet-like structure to realize the shifting operation.

[0045] According to Figure 6 shown, the present invention provides a shifting mechanism. The housing 80 is covered outside the linear motor 10 and the motor guide rail 12. The side of the housing 80 facing the connecting block 20 is set to be open, which plays a protective role for the linear motor 10 and the motor guide rail 12.

[0046] The technical solutions of the present invention will be introduced below in conjunction with specific embodiments.

[0047] According to some specific embodiments of this embodiment, such as Figures 1 to 6As shown in the figure, it includes: a linear motor 10, a motor guide rail 12, a connecting block 20, and a fork 30; the linear motor 10 and the motor guide rail 12 are in sliding fit; the connecting block 20 is arranged on the side of the motor guide rail 12 away from the linear motor 10 and is connected to the linear motor 10; the fork 30 is connected to the connecting block 20.

[0048] Specifically, in the existing shifting mechanism, the worm and worm gear plus the rack and pinion have problems of low transmission efficiency and complex structure, and the ball screw has problems of easy wear of the balls and high requirements for the cleanliness of the raceway. In the present invention, by slidingly matching the linear motor 10 with the motor guide rail 12, connecting the linear motor 10 with the connecting block 20, and connecting the other end of the connecting block 20 with the fork 30, it replaces the form of the worm and worm gear or the ball screw, eliminates the mechanical transmission structure, has a simple structure, directly drives the fork 30 to move by the linear motor 10, has high control precision, eliminates the positioning and assembly errors brought by the intermediate links, and has a rapid response and high sensitivity.

[0049] In a possible implementation manner, the linear motor 10 and the motor guide rail 12 can be in a rolling fit or other fit manners, and it is based on being able to achieve movement in the extending direction of the motor guide rail 12. The present invention does not make specific limitations on this.

[0050] According to an embodiment of the present invention, it further includes: a driving part 40, the driving part 40 is arranged on the connecting block 20 and is connected to the fork 30, and is used to drive the rotation of the fork 30.

[0051] Specifically, the above-mentioned shifting mechanism is also provided with a driving part 40, the driving part 40 is arranged on the connecting block 20 and is connected to the fork 30, and the driving part 40 directly drives the fork 30 to rotate to achieve the shifting operation, eliminates the mechanical transmission structure, directly drives the fork 30 to rotate, reduces the number and volume of the actuators, has higher control precision, avoids the positioning and assembly errors brought by the intermediate links, and has high sensitivity.

[0052] In a possible implementation manner, the driving part 40 can be a motor, which is used to provide power for the rotation of the fork 30.

[0053] It should be noted that the linear motor 10 and the motor guide rail 12 are in sliding fit. While driving the fork 30 to rotate, the linear motor 10 can achieve movement in the extending direction of the motor guide rail 12 to adjust the position and posture of the fork 30 to improve the accuracy of the shifting operation.

[0054] According to an embodiment of the present invention, it further includes: a shift lever 32, the shift lever 32 is connected to the connecting block 20 and the fork 30 and is arranged along the extending direction of the motor guide rail 12; wherein, the driving part 40 is arranged on the connecting block 20 and is connected to the shift lever 32, and by driving the shift lever 32 to rotate, the rotation of the fork 30 is achieved.

[0055] Specifically, for the operation of driving the fork 30 to rotate by the above-mentioned shift mechanism, the shift lever 32 can also be set to be connected to the connecting block 20 and the fork 30 respectively, the driving part 40 is connected to the shift lever 32, the driving part 40 drives the shift lever 32, and then drives the fork 30 to rotate to complete the shift operation.

[0056] It should be noted that after the shift lever 32 is set, when the linear motor 10 operates, the connecting block 20 is connected to the linear motor 10 to push the connecting block 20 to move. The connecting block 20 is connected to the shift lever 32, so that the shift lever 32 moves, and then drives the fork 30 to achieve shifting.

[0057] It should also be noted that by additionally setting the shift lever 32 to drive the fork 30 to rotate, compared with not setting the shift lever 32, the initial position of the fork 30 can be adjusted arbitrarily as needed. Although the position of the fork 30 along the extension direction of the motor guide rail 12 can be adjusted by the linear motor 10, in some working scenarios, the position to be adjusted is too long, and the length of the guide rail may not be enough. Therefore, by additionally setting the shift lever 32, the fork 30 can be set at any position on the shift lever 32 according to requirements, and the adjustable distance is longer, which is convenient for precise control.

[0058] According to an embodiment of the present invention, it further includes: a speed reducer 50, and the speed reducer 50 is arranged on the connecting block 20 and is respectively connected to the driving part 40 and the shift lever 32.

[0059] Specifically, by arranging the speed reducer 50 between the driving part 40 and the shift lever 32, when the driving part 40 drives the shift lever 32 to rotate, the speed can be adjusted automatically according to the shift requirement to achieve precise control.

[0060] According to an embodiment of the present invention, it further includes: a first magnetic induction part 60 and a second magnetic induction part 70; a plurality of first magnetic induction parts 60 are evenly distributed on one side surface of the connecting block 20 facing the fork 30; a plurality of second magnetic induction parts 70 are arranged on one side surface of the fork 30 cooperating with the connecting block 20; wherein, the rotation between the driving fork 30 and the connecting block 20 is realized through the magnetic induction action between the first magnetic induction part 60 and the second magnetic induction part 70.

[0061] Specifically, when the shift lever 32 is not set and the fork 30 is directly connected to the connecting block 20, a plurality of first magnetic induction parts 60 are evenly distributed on one side surface of the connecting block 20 facing the fork 30, a plurality of magnetic induction parts are evenly distributed on one side surface of the fork 30 cooperating with the connecting block 20, there is a magnetic induction action between the first magnetic induction part 60 and the second magnetic induction part 70, and the driving part 40 provides a driving force to drive the fork 30 to rotate to achieve the shift operation.

[0062] According to an embodiment of the present invention, it further includes: a shift lever 32, a first magnetic induction portion 60, and a second magnetic induction portion 70; one end of the shift lever 32 is connected to the connecting block 20, and the other end of the shift lever 32 is connected to the shift fork 30 and is arranged along the extending direction of the motor guide rail 12; a plurality of first magnetic induction portions 60 are circumferentially and evenly distributed on the mating surface of the shift lever 32 and the shift fork 30 around the shift lever 32; a plurality of second magnetic induction portions 70 are circumferentially and evenly distributed on the mating surface of the shift fork 30 and the shift fork 30 around the shift lever 32; wherein, through the magnetic induction effect between the first magnetic induction portion 60 and the second magnetic induction portion 70, the rotation between the shift fork 30 and the connecting block 20 is realized.

[0063] Specifically, when the shift lever 32 is provided and the shift fork 30 is connected to the shift lever 32, a plurality of first magnetic induction portions 60 are evenly arranged on the mating surface of the shift lever 32 and the shift fork 30, a plurality of second magnetic induction portions 70 are evenly arranged on the other mating surface of the shift lever 32 and the shift fork 30, there is a magnetic induction effect between the first magnetic induction portion 60 and the second magnetic induction portion 70, the driving portion 40 drives the shift lever 32, and the shift lever 32 further drives the shift fork 30 to rotate to realize the shifting operation.

[0064] According to an embodiment of the present invention, one side surface of the shift fork 30 away from the linear motor 10 is a sheet-like structure, and the sheet-like structure is inserted and matched with the slot of the gear position; wherein, a plurality of gear positions are arranged at intervals along the extending direction of the motor guide rail 12.

[0065] Specifically, one side surface of the shift fork 30 away from the linear motor 10 is a sheet-like structure, and the sheet-like structure is inserted and matched with the slot of the gear position to realize the shifting operation, and along the extending direction of the motor guide rail 12, a plurality of gear positions are arranged at intervals. The above shifting mechanism can be used for two-speed and multi-speed mechanisms, and one shifting unit can control multiple gear positions.

[0066] According to an embodiment of the present invention, it further includes: a housing 80, the housing 80 covers the outside of the linear motor 10 and the motor guide rail 12, and the side facing the connecting block 20 is open.

[0067] Specifically, covering the housing 80 outside the linear motor 10 and the motor guide rail 12 can avoid the situation that the linear motor 10 and the motor guide rail 12 are damaged by external factors, play a protective role, and ensure the control accuracy.

[0068] In some specific implementation manners of this embodiment, a powertrain provided by the present invention includes the above shifting mechanism.

[0069] In some specific implementation manners of this embodiment, a vehicle provided by the present invention includes the above shifting mechanism, or the above powertrain.

[0070] The shift mechanism, powertrain and vehicle provided by the present invention, by slidingly mating a linear motor with a motor guide rail, connecting the linear motor to a connecting block, and connecting the other end of the connecting block to a shift fork, replaces the worm and worm gear or ball screw form, eliminates the mechanical transmission structure, has a simple structure, directly drives the shift fork to move by the linear motor, has high control precision, eliminates the positioning and assembly errors brought by the intermediate links, and has a rapid response and high sensitivity.

[0071] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "mode", "specific mode", or "some modes", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or mode are included in at least one embodiment or mode of the embodiments of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or modes. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or modes described in this specification and the features of different embodiments or modes.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications, or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should all be covered by the scope of the claims of the present invention.

Claims

1. A shift mechanism, characterized in that, Comprising: A linear motor (10), a motor guide rail (12), a connecting block (20), a fork (30), and a driving part (40); The linear motor (10) and the motor guide rail (12) are in sliding fit; The connecting block (20) is arranged on a side of the motor guide rail (12) away from the linear motor (10) and is connected to the linear motor (10); The fork (30) is connected to the connecting block (20); The driving part (40) is arranged on the connecting block (20) and is connected to the fork (30) for driving the fork (30) to rotate relative to the connecting block (20).

2. The shift mechanism according to claim 1, characterized in that, One side surface of the fork (30) away from the linear motor (10) is a sheet-like structure, and the sheet-like structure is in plug-in fit with a slot of a gear position; Wherein, a plurality of the gear positions are arranged at intervals along the extending direction of the motor guide rail (12).

3. The shift mechanism according to claim 1, characterized in that, Further comprising: A housing (80), the housing (80) covers the outside of the linear motor (10) and the motor guide rail (12), and is open on a side facing the connecting block (20).

4. A shift mechanism, characterized in that, Comprising: A linear motor (10), a motor guide rail (12), a connecting block (20), a fork (30), a shift lever (32), and a driving part (40); The linear motor (10) and the motor guide rail (12) are in sliding fit; The connecting block (20) is arranged on a side of the motor guide rail (12) away from the linear motor (10) and is connected to the linear motor (10); The fork (30) is connected to the connecting block (20); The shift lever (32) is respectively connected to the connecting block (20) and the fork (30) and is arranged along the extending direction of the motor guide rail (12); Wherein, the driving part (40) is arranged on the connecting block (20) and is connected to the shift lever (32), and by driving the shift lever (32) to rotate, it is used to drive the fork (30) to rotate relative to the connecting block (20).

5. The shift mechanism according to claim 4, wherein Further comprising: A speed reducer (50), the speed reducer (50) is arranged on the connecting block (20) and is respectively connected to the driving part (40) and the shift lever (32).

6. The shift mechanism according to claim 4 or 5, characterized in that, One side surface of the fork (30) away from the linear motor (10) is a sheet-like structure, and the sheet-like structure is in plug-in fit with a slot of a gear position; Wherein, a plurality of the gear positions are arranged at intervals along the extending direction of the motor guide rail (12).

7. The shift mechanism according to claim 4 or 5, characterized in that, Further comprising: A housing (80), the housing (80) covers the outside of the linear motor (10) and the motor guide rail (12), and is open on a side facing the connecting block (20).

8. A shift mechanism, characterized in that, Comprising: A linear motor (10), a motor guide rail (12), a connecting block (20), a fork (30), a first magnetic induction part (60), and a second magnetic induction part (70); The linear motor (10) and the motor guide rail (12) are in sliding fit; The connecting block (20) is arranged on a side of the motor guide rail (12) away from the linear motor (10) and is connected to the linear motor (10); The fork (30) is connected to the connecting block (20); A plurality of the first magnetic induction parts (60) are evenly distributed on one surface of the connecting block (20) facing the shift fork (30); A plurality of the second magnetic induction parts (70) are arranged on one surface of the shift fork (30) that cooperates with the connecting block (20); Wherein, the first magnetic induction part (60) and the second magnetic induction part (70) realize driving the shift fork (30) to rotate relative to the connecting block (20) through magnetic induction; 9. The shift mechanism according to claim 8, wherein One surface of the shift fork (30) away from the linear motor (10) is a sheet structure, and the sheet structure is in plug-in fit with the slot of the gear position; Wherein, a plurality of the gear positions are arranged at intervals along the extending direction of the motor guide rail (12); 10. The shift mechanism according to claim 8, characterized in that, Further comprising: A housing (80), the housing (80) covers the outside of the linear motor (10) and the motor guide rail (12), and is open on the side facing the connecting block (20); 11. A shift mechanism, characterized in that, Comprising: A linear motor (10), a motor guide rail (12), a connecting block (20), a shift fork (30), a shift lever (32), a first magnetic induction part (60) and a second magnetic induction part (70); The linear motor (10) and the motor guide rail (12) are in sliding fit; The connecting block (20) is arranged on one side of the motor guide rail (12) away from the linear motor (10) and is connected to the linear motor (10); The shift fork (30) is connected to the connecting block (20); One end of the shift lever (32) is connected to the connecting block (20), and the other end of the shift lever (32) is connected to the shift fork (30) and is arranged along the extending direction of the motor guide rail (12); A plurality of the first magnetic induction parts (60) are evenly distributed around the circumference of the shift lever (32) on the mating surface between the shift lever (32) and the shift fork (30); A plurality of the second magnetic induction parts (70) are evenly distributed around the circumference of the shift lever (32) on the mating surface between the shift fork (30) and the shift fork (30); Wherein, the first magnetic induction part (60) and the second magnetic induction part (70) realize driving the shift fork (30) to rotate relative to the connecting block (20) through magnetic induction; 12. The shift mechanism according to claim 11, wherein, One surface of the shift fork (30) away from the linear motor (10) is a sheet structure, and the sheet structure is in plug-in fit with the slot of the gear position; Wherein, a plurality of the gear positions are arranged at intervals along the extending direction of the motor guide rail (12); 13. The shift mechanism according to claim 11, characterized in that, Further comprising: A housing (80), the housing (80) covers the outside of the linear motor (10) and the motor guide rail (12), and is open on the side facing the connecting block (20); 14. A powertrain, characterized in that, Comprising the shift mechanism according to any one of claims 1 to 13 above.

15. A vehicle, characterized in that, Comprising the shift mechanism according to any one of claims 1 to 13 above, or the powertrain according to claim 14 above.

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