Efficient electric gear shifting assembly

Abstract

The utility model discloses an efficient electric gear shifting assembly, which belongs to the technical field of driving control, and comprises a gearbox, a screw rod is arranged in the gearbox, a shifting fork is sleeved outside the screw rod, a vacuum tube is arranged on the side wall of the gearbox in a penetrating manner, a stretching piston is arranged at one end of the vacuum tube, a following piston is arranged at the other end of the vacuum tube, and the following piston is arranged on the side wall of the gearbox. A fixing module is arranged on the side wall of the vacuum pipe, a cavity is formed in the fixing module, the following piston is located in the cavity, a lifting plate is arranged on the side wall of the following piston, a plurality of pressing plates abutting against the side wall of the lifting plate are arranged in the cavity, and torsional springs are arranged in the pressing plates. A telescopic spring fixedly connected with the side wall of the moving block is arranged in the moving groove, and a separating assembly matched with the pressing plate is arranged in the shifting fork. According to the utility model, through the separation shifting fork device which can be triggered manually, a user can manually release the stuck state when the electric gear shifting assembly is stuck due to an unexpected situation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to drive control technical field especially relates to a kind of efficient electric gear shifting assembly. BACKGROUND

[0002] Electric gear shifting assembly is the key component in electric vehicle power transmission system, is an integrated system for controlling the gear shifting of vehicle gearbox by electronic signal, mainly used in automatic transmission car, new energy vehicle or part high-end motorcycle. It replaces the traditional mechanical gear shifting connecting rod structure, and realizes more intelligent and accurate gear shifting control by electric control unit and motor implementation gear shifting operation;

[0003] Compared with manual gear shifting, the whole gear shifting process is controlled by motor, so the gear shifting is smoother, and the response speed is faster. However, due to the high dependence of electric gear shifting assembly on electronic system, the risk of failure increases. When power failure, system crash or ECU (i.e. electric control unit) problem occurs, the gear shifting assembly may be stuck in a gear position and cannot be switched, resulting in the vehicle tires being stuck. Compared with traditional mechanical gear shifting, it is more difficult to move the vehicle when problems occur, which further affects the repair efficiency.

[0004] Therefore, we propose an efficient electric gear shifting assembly to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at solving the problems in the prior art and proposes an efficient electric gear shifting assembly.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An efficient electric gear shifting assembly, comprising a gearbox, a lead screw is arranged in the gearbox, a shift fork is provided outside the lead screw, a vacuum tube is provided through the side wall of the gearbox, a stretching piston is arranged at one end of the vacuum tube, a following piston is arranged at the other end of the vacuum tube, a fixing module is arranged on the side wall of the vacuum tube, a cavity is formed in the fixing module, the following piston is located in the cavity, a lifting plate is arranged on the side wall of the following piston, a plurality of pressure plates abutting against the side wall of the lifting plate are arranged in the cavity, a torsional spring is arranged in the pressure plate, two moving blocks are arranged at the top of the shift fork, a moving groove for the movement of the moving block is formed at the bottom of the cavity, an extension spring fixedly connected with the side wall of the moving block is arranged in the moving groove, a separation assembly cooperating with the pressure plate is arranged in the interior of the shift fork.

[0008] Preferably, the separation assembly comprises a threaded block, a telescopic rod, a motion tube and an insertion block, the threaded block is arranged inside the motion tube, the motion tube is fixedly connected with the side wall of the shift fork, the motion tube and the threaded block are both designed as a circular ring, the threaded block is threadedly connected with the screw rod, the telescopic rod is arranged on the top of the threaded block, the insertion block is fixed on the end of the telescopic rod away from the threaded block, the side wall of the motion tube is provided with an insertion hole, and the insertion block is inserted into the insertion hole.

[0009] Preferably, the insertion block is located between two motion blocks, and the positions of the plurality of pressing plates correspond to the positions of the insertion block in different gear positions respectively.

[0010] Preferably, the motion groove is provided with a pressing groove away from the pressing plate, the position of the pressing groove corresponds to the position of the pressing plate, a strong magnetic block is arranged in the pressing groove, and the pressing plate is made of a magnetic metal material.

[0011] Preferably, the distance between the bottom of the lifting plate and the top of the motion block is 1cm-2cm, and the length of the lifting plate is greater than the distance between the two pressing plates farthest apart.

[0012] Preferably, the side wall of the pressing plate is provided with a center rod, and the torsional spring is wound outside the center rod.

[0013] In conclusion, the technical effects and advantages of the utility model are as follows:

[0014] When the electric gear shifting assembly appears an unexpected situation, causing the shift fork gear position to be stuck, the user can pull out the stretching piston outward, so that the piston moves, and then the connection relationship between the threaded block and the shift fork is released, thereby releasing the stuck state of the shift fork, and facilitating the staff to remove the vehicle for maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a sectional view of the transmission inside (the shift fork is not drawn) in the utility model;

[0017] Figure 3 It is Figure 2 a local enlarged view of part A in the utility model;

[0018] Figure 4 It is a schematic diagram of the structure connection inside the shift fork in the utility model;

[0019] Figure 5 It is a sectional view of the inside of the fixed module in the utility model;

[0020] Figure 6 It is Figure 5 a local enlarged view of part B in the utility model.

[0021] In the diagram: 1. Gearbox; 2. Lead screw; 3. Shift fork; 4. Vacuum tube; 5. Tension piston; 6. Follower piston; 7. Fixed module; 8. Lifting plate; 9. Pressure plate; 10. Torsion spring; 11. Moving block; 12. Moving groove; 13. Threaded block; 14. Telescopic rod; 15. Moving tube; 16. Insertion block; 17. Insertion hole; 18. Pressure groove; 19. Strong magnet; 20. Center rod; 21. Telescopic spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] like Figure 1 - Figure 6 As shown, a high-efficiency electric shift assembly includes a gearbox 1, a lead screw 2 installed in the gearbox 1, a shift fork 3 sleeved on the lead screw 2, a vacuum tube 4 penetrating through the side wall of the gearbox 1, a tension piston 5 installed at one end of the vacuum tube 4, and a follower piston 6 installed at the other end of the vacuum tube 4. The inside of the vacuum tube 4 is a vacuum, so when the tension piston 5 is pulled outward, the follower piston 6 at the other end of the vacuum tube 4 will also move in the direction of the pulling force. A fixing module 7 is installed on the side wall of the vacuum tube 4, and a cavity is opened in the fixing module 7. The follower piston 6 is located in the cavity. A lifting plate 8 is installed on the side wall of the follower piston 6. Multiple pressure plates 9 abutting against the side wall of the lifting plate 8 are installed in the cavity. The distance between the bottom of the lifting plate 8 and the top of the moving block 11 is 1cm-2cm. The length of the lifting plate 8 is greater than the distance between the two farthest pressure plates 9. The height of the lifting plate 8 ensures that the lifting plate 8 will not collide with the moving block 11 during the shifting process.

[0024] A torsion spring 10 is provided in the pressure plate 9. The force applied to the pressure plate 9 by the torsion spring 10 will cause the pressure plate 9 to tend to rotate in the direction of the pressure groove 18. A central rod 20 is installed on the side wall of the pressure plate 9. The torsion spring 10 is wrapped around the outside of the central rod 20. Two moving blocks 11 are installed on the top of the shift fork 3. A moving groove 12 is opened at the bottom of the cavity for the moving blocks 11 to move. A telescopic spring 21 is installed in the moving groove 12 and is fixedly connected to the side wall of the moving block 11. The telescopic spring 21 will cause the moving block 11 and the moving tube 15 to tend to move in the neutral direction.

[0025] A pressure groove 18 is provided on the side of the motion groove 12 away from the pressure plate 9. The position of the pressure groove 18 corresponds to the position of the pressure plate 9. A strong magnetic block 19 is installed in the pressure groove 18. The pressure plate 9 is made of magnetic metal. Under the action of the torsion spring 10, the pressure plate 9 will rotate towards the pressure groove 18. The setting of the strong magnetic block 19 can make the rotation process more powerful, thus making it easier to press the plug 16 into the insertion hole 17.

[0026] The shifter 3 is internally provided with a separation assembly matched with the pressing plate 9, the separation assembly comprises a threaded block 13, an extension rod 14, a moving tube 15 and an insertion block 16, the threaded block 13 is arranged in the moving tube 15, the moving tube 15 is fixedly connected with the side wall of the shifter 3, the moving tube 15 and the threaded block 13 are both designed as a circular ring, the threaded block 13 is threadedly connected with the screw rod 2, the extension rod 14 is arranged at the top of the threaded block 13, the extension rod 14 applies a force to the insertion block 16, so that the insertion block 16 has an upward force, that is, the insertion block 16 will keep the state of being inserted into the insertion hole 17, the insertion block 16 is fixed at the end of the extension rod 14 away from the threaded block 13, the side wall of the moving tube 15 is provided with the insertion hole 17, the insertion block 16 is inserted into the insertion hole 17, the insertion block 16 is located between the two moving blocks 11, the positions of the plurality of pressing plates 9 correspond to the positions of the insertion block 16 in different gear positions respectively, and the pressing plate 9 is provided with a protrusion on the side wall of the side wall facing the insertion block 16. Figure 6 As can be seen, the protrusion is arranged on the side wall of the side wall of the pressing plate 9 facing the insertion block 16, so that the insertion block 16 can be better pressed into the insertion hole 17.

[0027] The working principle is as follows: when the shifter 3 is stuck, the worker can pull up the extension piston 5, under the action of the vacuum tube 4, the piston 6 will also rise, and then drive the lifting plate 8 to rise, the pressing plate 9 originally limited by the lifting plate 8 will rotate under the action of the torsional spring 10, and then press the insertion block 16 downward, and the pressing effect is better under the action of the strong magnetic block 19.

[0028] Because the protrusion on the side wall of the pressing plate 9 is pressed away from the insertion hole 17 by the downward insertion block 16, the extension rod 14 is compressed at this time, and the connection relationship between the moving tube 15 and the threaded block 13 is released, so that the moving block 11 drives the moving tube 15 and the shifter 3 to move to the neutral position under the action of the extension spring 21, and then the worker can move the vehicle.

[0029] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A high-efficiency electric gear shifting assembly, comprising a gearbox (1), a lead screw (2) is arranged in the gearbox (1), a shift fork (3) is arranged on the lead screw (2), characterized in that, The gearbox (1) side wall is provided with a vacuum pipe (4), one end of the vacuum pipe (4) is provided with a stretching piston (5), the other end of the vacuum pipe (4) is provided with a following piston (6), the side wall of the vacuum pipe (4) is provided with a fixed module (7), the fixed module (7) is provided with a cavity, the following piston (6) is located in the cavity, the side wall of the following piston (6) is provided with a lifting plate (8), a plurality of pressing plates (9) abutting the side wall of the lifting plate (8) are arranged in the cavity, the torsion spring (10) is arranged in the pressing plate (9), the top of the shift fork (3) is provided with two moving blocks (11), the bottom of the cavity is provided with a movement groove (12) for the movement of the moving block (11), the telescopic spring (21) fixedly connected with the side wall of the moving block (11) is arranged in the movement groove (12), the inside of the shift fork (3) is provided with a separation assembly matched with the pressing plate (9).

2. A high efficiency electrically powered gear shifting assembly as claimed in claim 1 wherein, The separation assembly comprises a threaded block (13), a telescopic rod (14), a movement tube (15) and an insertion block (16), the threaded block (13) is arranged in the movement tube (15), the movement tube (15) is fixedly connected with the side wall of the shift fork (3), the movement tube (15) and the threaded block (13) are designed as circular rings, the threaded block (13) is threadedly connected with the lead screw (2), the telescopic rod (14) is arranged at the top of the threaded block (13), the insertion block (16) is fixed at the end of the telescopic rod (14) away from the threaded block (13), the side wall of the movement tube (15) is provided with an insertion hole (17), and the insertion block (16) is inserted into the insertion hole (17).

3. A high efficiency electrically powered gear shifting assembly as claimed in claim 2 wherein, The insertion block (16) is located between the two moving blocks (11), and the positions of the plurality of pressing plates (9) correspond to the positions of the insertion block (16) in different gear positions.

4. A high efficiency electrically powered gear shifting assembly as claimed in claim 1 wherein, The movement groove (12) is provided with a pressing groove (18) away from the pressing plate (9), the position of the pressing groove (18) corresponds to the position of the pressing plate (9), the strong magnetic block (19) is arranged in the pressing groove (18), and the pressing plate (9) is made of magnetic metal material.

5. A high efficiency electrically powered gear shifting assembly as claimed in claim 1 wherein, The distance between the bottom of the lifting plate (8) and the top of the moving block (11) is 1cm-2cm, and the length of the lifting plate (8) is greater than the distance between the two pressing plates (9) farthest apart.

6. A high efficiency electrically powered gear shifting assembly as claimed in claim 1 wherein, The side wall of the pressing plate (9) is provided with a center rod (20), and the torsion spring (10) is wound outside the center rod (20).

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