Double-shifting-finger gear shifting device

Abstract

The utility model provides a double-shifting-finger gear shifting device. The double-shifting-finger gear shifting device comprises a box body, a shifting fork structure and an execution assembly. The shifting fork structure comprises a shifting fork and a transmission mechanism, the shifting fork is rotationally arranged on the box body, two shifting fingers are arranged on the shifting fork, a limiting groove allowing a speed change component of the gearbox to stretch into is formed between the two shifting fingers, shifting head ends used for being clamped with the speed change component of the gearbox are arranged on the shifting fingers, and the shifting head ends are connected with the transmission mechanism. The transmission mechanism is arranged on the box body and is in transmission connection with the shifting fork; the execution assembly is arranged on the box body and is in driving connection with the shifting fork through the transmission mechanism. Compared with the prior art, in the double-shifting-finger gear shifting device, the two shifting fingers are limited on the two sides of the speed changing component, so that the shifting fork and the speed changing component are not prone to deviating from each other, and the stability between the shifting fork and the speed changing component is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear shifting, in particular to a double-finger gear shifting device. Background Art

[0002] The electric shift mechanism achieves gear shifting by controlling the movement of the gearbox's shifting components. It is currently widely used in the field of electric vehicles. The shift knob is a common part of the shift mechanism. The shift mechanism directly or indirectly drives the gearbox's shifting components to move through the shift knob.

[0003] For a shift lever head designed with a shift finger, when the shift lever head is rotated, the shift finger swings, thereby driving the shift component to move. However, since the shift finger is usually only connected to one side of the shift component, the connection between the shift finger and the shift component is unstable. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and provide a double-finger shifting device.

[0005] An embodiment of the utility model provides a double-finger shifting device, comprising: a housing, a shift fork structure and an actuator assembly;

[0006] The shift fork structure comprises a shift fork and a transmission mechanism, wherein the shift fork is rotatably arranged on the housing, two shift fingers are arranged on the shift fork, a limit groove for a shifting component of a gearbox to extend therein is formed between the two shift fingers, a shift head end for engaging with the shifting component of the gearbox is arranged on the shift finger, and the transmission mechanism is arranged on the housing and is transmission-connected to the shift fork;

[0007] The actuator is arranged on the box body and is drivingly connected to the shift fork through the transmission mechanism.

[0008] In some optional embodiments, the transmission mechanism includes a transmission screw and a transmission block, the transmission screw is arranged on the box body and connected to the actuator, the transmission block is transmission-connected to the transmission screw and cooperates with the shift fork for rotation, the actuator drives the transmission screw to rotate to drive the transmission block to move, and the transmission block drives the shift fork to rotate when it moves.

[0009] In some optional embodiments, transmission shafts are arranged on both sides of the transmission block, transmission grooves are arranged on both sides of the shift fork, and the transmission shafts are rotationally matched with the transmission grooves.

[0010] In some optional embodiments, the shift fork is rotatably matched with the housing via a rotating shaft, and the housing is provided with at least one bearing, and the bearing is connected to the rotating shaft.

[0011] In some optional embodiments, a circumferential limiting hole is provided on the shift fork, and the rotating shaft passes through the circumferential limiting hole.

[0012] In some optional embodiments, the actuator includes a drive motor, which is disposed on one side of the box and connected to the transmission mechanism.

[0013] In some optional embodiments, a receiving groove is provided on the box body, and a first opening and a second opening are provided on the receiving groove. The shift fork and the transmission mechanism are arranged in the receiving groove, and the shift fork extends from the first opening to the outside of the receiving groove, and the transmission mechanism passes through the second opening and is then connected to the actuator.

[0014] In some optional embodiments, a first protective cover is detachably provided on the outer side of the box body, and the first protective cover is arranged on at least one side of the actuator.

[0015] In some optional embodiments, an angle sensor is provided on the box body, and the angle sensor is connected to the shift fork.

[0016] In some optional embodiments, a second protective cover is detachably provided on the outer side of the box body, and the second protective cover is arranged on at least one side of the angle sensor.

[0017] Compared with the prior art, in the dual-finger shifting device of the present invention, two shift fingers are restricted on both sides of the speed change component, so that the shift fork and the speed change component are not easily offset from each other, thereby improving the stability between the shift fork and the speed change component.

[0018] In order to more clearly understand the present invention, the specific implementation of the present invention will be described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a dual-finger shifting device according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic structural diagram of a shift fork structure according to an embodiment of the utility model;

[0021] Figure 3 An exploded view of a shift fork structure according to an embodiment of the utility model;

[0022] Figure 4 The figure is a schematic structural diagram of a box body according to an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 10. Housing; 11. Bearing; 12. Accommodating groove; 13. First opening; 14. Second opening; 15. First protective cover; 16. Angle sensor; 17. Second protective cover; 20. Shift fork structure; 21. Shift fork; 211. Shift finger; 212. Limiting groove; 213. Shift head end; 214. Transmission groove; 215. Rotating shaft; 216. Circumferential limiting hole; 22. Transmission mechanism; 221. Transmission screw; 222. Transmission block; 223. Transmission shaft; 30. Actuator assembly. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In the description of the utility model, unless otherwise specified, "multiple" means 2 or more, and "several" means 1 or more. In addition, unless otherwise specified, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the description of the utility model, the description with reference to the terms "one embodiment", "some optional implementations" or "some optional embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0029] See also Figure 1 An embodiment of the utility model provides a dual-finger shifting device, including: a housing 10 , a shift fork structure 20 and an actuator assembly 30 .

[0030] See also Figure 2 The fork structure 20 includes a fork 21 and a transmission mechanism 22. The fork 21 is rotatably arranged on the housing 10. Two shift fingers 211 are arranged on the fork 21. A limit groove 212 is formed between the two shift fingers 211 for the transmission component of the gearbox to extend into. After the transmission component extends into the limit groove 212, it is stably matched with the fork 21 under the restriction of the two shift fingers 211. The shift finger 211 is provided with a shift head end 213 for engaging with the transmission component of the gearbox. The transmission component can be designed with a slot for rotationally matching with the shift head end 213. When the fork 21 rotates, it will drive the transmission component to move, so as to realize the gearbox shifting. The transmission mechanism 22 is arranged on the housing 10 and is transmission-connected with the fork 21. The actuator 30 is arranged on the housing 10 and is drivingly connected with the fork 21 through the transmission mechanism 22, so as to drive the fork 21 to rotate.

[0031] It should be noted that the specific structure and principle of the speed change component are technologies well known to those skilled in the art. The speed change component can be a single part or a structure composed of multiple parts. For example, the speed change component can include a transmission gear and a rack mechanism. The transmission gear is movably connected to the shift shaft of the gearbox, and the rack mechanism is transmission-connected to the transmission gear. Slots are provided on both sides of the rack mechanism, and the shift head end 213 is engaged with the slot and rotates to cooperate. The two shift fingers 211 are located on both sides of the rack structure. The shift fork 21 rotates to drive the rack mechanism to move, thereby causing the transmission gear to move along the shift shaft.

[0032] See also Figure 3The specific structure of the transmission mechanism 22 can be designed according to actual needs. For example, in some optional embodiments, the transmission mechanism 22 includes a transmission screw 221 and a transmission block 222. The transmission screw 221 is arranged on the housing 10 and connected to the actuator 30. The transmission block 222 is connected to the transmission screw 221 and rotates with the fork 21. The actuator 30 drives the transmission screw 221 to rotate, thereby driving the transmission block 222 to move. When the transmission block 222 moves, the fork 21 is driven to rotate. Of course, the structure of the transmission mechanism 22 is not limited to this. Those skilled in the art can also select other suitable structures according to the teachings of the utility model.

[0033] In some optional embodiments, a transmission shaft 223 is provided on both sides of the transmission block 222, and a transmission groove 214 is provided on both sides of the fork 21. The transmission shaft 223 and the transmission groove 214 rotate in cooperation. When the transmission block 222 moves, the transmission shaft 223 will be driven to move through the transmission groove 214, thereby driving the fork 21 to rotate.

[0034] The rotational connection method between the fork 21 and the housing 10 can be designed according to actual needs. For example, in some optional embodiments, the fork 21 is rotatably matched with the housing 10 through the rotating shaft 215. At least one bearing 11 is provided on the housing 10, and the bearing 11 is connected to the rotating shaft 215, thereby reducing the friction between the rotating shaft 215 and the housing 10, making the rotation of the fork 21 smoother.

[0035] In some optional embodiments, the shift fork 21 is provided with a circumferential limit hole 216, and the rotating shaft 215 is passed through the circumferential limit hole 216, so that the rotating shaft 215 and the shift fork 21 cannot rotate relative to each other. The cross-sectional shape of the circumferential limit hole 216 is roughly rectangular, and the cross-sectional shape of the rotating shaft 215 roughly matches the cross-sectional shape of the circumferential limit hole 216, so that the rotating shaft 215 cannot rotate relative to the circumferential limit hole 216. Of course, a limit protrusion can also be provided in the circumferential limit hole 216, and a limit groove 212 can be provided on the rotating shaft 215, and the limit protrusion is inserted into the limit groove 212, which can also prevent the rotating shaft 215 from rotating relative to the circumferential limit hole 216. This example is not limited thereto.

[0036] The specific structure of the actuator 30 can be designed according to actual needs. For example, in some optional embodiments, the actuator 30 includes a drive motor, which is arranged on one side of the housing 10 and connected to the transmission mechanism 22. In this embodiment, the drive motor is detachably mounted on the housing 10 by a screw.

[0037] See also Figure 4In some optional embodiments, a receiving groove 12 is provided on the box body 10, and a first opening 13 and a second opening 14 are provided on the receiving groove 12. The shift fork 21 and the transmission mechanism 22 are arranged in the receiving groove 12, and the shift head end 213 of the shift fork 21 extends from the first opening 13 to the outside of the receiving groove 12, and the transmission screw 221 of the transmission mechanism 22 passes through the second opening 14 and is then connected to the actuator 30.

[0038] In some optional embodiments, a first protective cover 15 is detachably provided on the outer side of the box body 10, and the first protective cover 15 is arranged on at least one side of the actuator 30. The first protective cover 15 can prevent the actuator 30 from being hit, which is beneficial to protecting the actuator 30. In this embodiment, a first wiring port is provided on one side of the drive motor, and the first protective cover 15 is correspondingly located on one side of the first wiring port, so as to protect the wiring stability of the first wiring port.

[0039] In some optional embodiments, an angle sensor 16 is provided on the housing 10, and the angle sensor 16 is connected to the shift fork 21. The angle sensor 16 is used to detect the angle of the shift fork 21. In this embodiment, the rotating shaft 215 connected to the shift fork 21 extends into the angle sensor 16 and is connected to the angle sensor 16, so that the angle sensor 16 can detect the angle of the shift fork 21. It is possible to determine whether the shift fork 21 is rotated to an accurate angle by detecting the angle of the shift fork 21, thereby correspondingly determining whether the speed change component is accurately shifted to the corresponding gear position. The structure and principle of the angle sensor 16 are well known to those skilled in the art, and will not be described in detail here.

[0040] In some optional embodiments, a second protective cover 17 is detachably provided on the outer side of the box body 10, and the second protective cover 17 is arranged on at least one side of the angle sensor 16. The second protective cover 17 can prevent the angle sensor 16 from being hit, which is beneficial to protecting the angle sensor 16. In this embodiment, a second wiring port is provided on one side of the angle sensor 16, and the second protective cover 17 is correspondingly located on one side of the second wiring port, thereby protecting the wiring stability of the second wiring port.

[0041] In this embodiment, the first protective cover 15 is detachably mounted on the front cover of the driving motor by means of mounting screws, and the second protective cover 17 is detachably mounted on the box body 10 by means of mounting screws, so as to facilitate disassembly and assembly.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-finger shifting device, characterized in that: include: Box body, fork structure and actuator assembly; The shift fork structure comprises a shift fork and a transmission mechanism, wherein the shift fork is rotatably arranged on the housing, two shift fingers are arranged on the shift fork, a limit groove for a shifting component of a gearbox to extend therein is formed between the two shift fingers, a shift head end for engaging with the shifting component of the gearbox is arranged on the shift finger, and the transmission mechanism is arranged on the housing and is transmission-connected to the shift fork; The actuator is arranged on the box body and is drivingly connected to the shift fork through the transmission mechanism.

2. A dual-finger shifting device according to claim 1, characterized in that: The transmission mechanism includes a transmission screw and a transmission block. The transmission screw is arranged on the box body and connected to the actuator. The transmission block is transmission-connected to the transmission screw and cooperates with the shift fork for rotation. The actuator drives the transmission screw to rotate to drive the transmission block to move, and the transmission block drives the shift fork to rotate when it moves.

3. A dual-finger shifting device according to claim 2, characterized in that: Transmission shafts are arranged on both sides of the transmission block, transmission grooves are arranged on both sides of the shift fork, and the transmission shafts are rotationally matched with the transmission grooves.

4. A dual-finger shifting device according to claim 1, characterized in that: The shift fork is rotatably matched with the housing via a rotating shaft. The housing is provided with at least one bearing, and the bearing is connected to the rotating shaft.

5. A dual-finger shifting device according to claim 4, characterized in that: The shift fork is provided with a circumferential limiting hole, and the rotating shaft is passed through the circumferential limiting hole.

6. A dual-finger shifting device according to any one of claims 1 to 5, characterized in that: The actuator assembly includes a drive motor, which is arranged on one side of the box body and connected to the transmission mechanism.

7. A dual-finger shifting device according to claim 6, characterized in that: The box body is provided with a receiving groove, the receiving groove is provided with a first opening and a second opening, the shift fork and the transmission mechanism are arranged in the receiving groove, the shift fork extends from the first opening to the outside of the receiving groove, the transmission mechanism passes through the second opening, and then is connected with the actuator.

8. A dual-finger shifting device according to any one of claims 1 to 5, characterized in that: A first protective cover is detachably provided on the outer side of the box body, and the first protective cover is arranged on at least one side of the actuator.

9. A dual-finger shifting device according to any one of claims 1 to 5, characterized in that: An angle sensor is arranged on the box body, and the angle sensor is connected with the shift fork.

10. A dual-finger shifting device according to claim 9, characterized in that: A second protective cover is detachably provided on the outer side of the box body, and the second protective cover is arranged on at least one side of the angle sensor.

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