Steering angle detection piece assembling device and transmission assembly

Abstract

The utility model relates to the technical field of gear transmission, and discloses a steering angle detection piece assembling device and a transmission assembly.The steering angle detection piece assembling device comprises a first transmission piece and a second transmission piece, the first transmission piece is used for driving the second transmission piece to rotate, and gear meshing transmission is adopted between the first transmission piece and the second transmission piece; the first driving part is used for driving the gear teeth of the first transmission part to abut against the gear teeth of the second transmission part so as to cancel a circumferential gap generated when the gear teeth of the first transmission part are in transmission connection with the gear teeth of the second transmission part; and the second driving part is used for driving the second transmission part to move close to the first transmission part so as to reduce the radial gap when the gear teeth of the first transmission part are in transmission connection with the gear teeth of the second transmission part. According to the steering angle detection piece assembling device and the transmission assembly, backlash is eliminated, and the rotation angle measurement precision is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of gear transmission, in particular to a steering angle detection component assembly device and a transmission assembly. BACKGROUND

[0002] Gear transmission is a common transmission structure widely used in the mechanical field. For example, in a vehicle, a wheel assembly is rotatably connected to a frame, and the two are connected through meshing gears. A motor drives the gear to rotate to drive the wheel assembly to rotate, achieving the purpose of adjusting the driving direction of the vehicle. In order to accurately control the driving direction, the rotation angle of the gear needs to be accurately measured to determine whether the wheel assembly has been rotated to the right position.

[0003] In the prior art, when measuring the rotation angle of the gear, as shown in the accompanying drawings, Figure 1 Due to the existence of gear backlash when the gears mesh during transmission, the rotation angle calculated according to the directly measured rotation angle of the gear may deviate from the actual rotation angle, resulting in poor measurement accuracy. CONTENT OF THE INVENTION

[0004] The present application mainly solves the technical problem of poor measurement accuracy caused by gear backlash when measuring the rotation angle of the gear in the prior art. A steering angle detection component assembly device and a transmission assembly are provided to cancel the backlash and improve the rotation angle measurement accuracy.

[0005] To solve the above technical problem, the present application provides a steering angle detection component assembly device, characterized in that the steering angle detection component assembly device comprises,

[0006] a first transmission component and a second transmission component, the first transmission component is used to drive the second transmission component to rotate, and the first transmission component and the second transmission component are in gear mesh transmission;

[0007] a first driving component, the first driving component is used to drive the teeth of the first transmission component to abut against the teeth of the second transmission component to cancel the circumferential gap when the teeth of the first transmission component and the teeth of the second transmission component are in transmission connection;

[0008] a second driving component, the second driving component is used to drive the second transmission component to move close to the first transmission component to reduce the radial gap when the teeth of the first transmission component and the teeth of the second transmission component are in transmission connection.

[0009] In an implementable manner, the first transmission component comprises,

[0010] The first gear and the second gear are sequentially arranged along a first direction, the first gear and the second gear have the same size, and the addendum circle and the dedendum circle of the first gear and the second gear are arranged in coincidence, the gear teeth on the first gear are first gear teeth, the gear teeth on the second gear are second gear teeth, the gear teeth on the second transmission member are third gear teeth, the first gear teeth and the second gear teeth are arranged in circumferential dislocation, the first tooth surface of the first gear teeth and the second tooth surface of the second gear teeth jointly form a first limiting area, the first tooth surface and the second tooth surface are arranged in left-right correspondence, and the interval of the first limiting area on the reference circle is smaller than the pitch of the first gear and the second gear on the reference circle, when the first transmission member and the second transmission member are in transmission connection, the third gear teeth are located in the first limiting area, and the third gear teeth are in abutment with the first tooth surface and the second tooth surface respectively.

[0011] In an implementation manner, the first gear is provided with a first movement groove along a first direction, and the second gear is provided with a second movement groove along the first direction, and the first movement groove and the second movement groove are in communication.

[0012] The first driving member comprises,

[0013] The first connecting column is located in the first movement groove, and the first connecting column is connected with the first gear, and the first connecting column extends towards the second movement groove along the first direction.

[0014] The second connecting column is located in the second movement groove, and the second connecting column is connected with the second gear, and the second connecting column extends towards the first movement groove along the first direction.

[0015] The first elastic member is located in the first movement groove and the second movement groove, the first elastic member is connected with the first connecting column and the second connecting column, and drives the relative rotation between the first gear and the second gear to form the first limiting area.

[0016] In an implementation manner, the steering angle detection member assembly device further comprises a first limiting member, and the first limiting member comprises,

[0017] The first limiting groove is arranged in one of the first gear and the second gear.

[0018] The first limiting body is arranged in the other one of the first gear and the second gear, and the first limiting body is located in the first limiting groove to limit the rotation range of the first gear and the second gear.

[0019] In an embodiment, the turning angle detection assembly further comprises a first driving member, a second driving member, and a third driving member.

[0020] The accommodating housing has a first accommodating cavity in which a first sleeve is arranged, and the first transmission member is sleeved outside the first sleeve.

[0021] In an embodiment, the turning angle detection assembly further comprises a first driving member, a second driving member, and a third driving member.

[0022] The intermediate plate is arranged on one side of the second transmission member, and a second sleeve is arranged on the intermediate plate in the first direction, and the second transmission member is sleeved outside the second sleeve. A rotating column is arranged on the accommodating housing in the first direction, and the intermediate plate is rotationally connected with the rotating column. The second driving member is connected with the intermediate plate and is used to drive the intermediate plate and the second transmission member to move towards the first transmission member, so as to reduce the radial gap when the gear teeth of the first transmission member are in transmission connection with the gear teeth of the second transmission member.

[0023] In an embodiment, the intermediate plate has a first end and a second end in the circumferential direction of the intermediate plate. The first end of the intermediate plate is provided with a first connecting point, and a rotating groove is arranged on the first connecting point. The intermediate plate is rotationally connected with the rotating column through the rotating groove. The second end of the intermediate plate is provided with a second connecting point, and the second connecting point of the intermediate plate is connected with the second driving member.

[0024] In an embodiment, the second driving member is an elastic member. A first end of the second driving member is connected with the second connecting point, and a second end of the second driving member is connected with the accommodating housing.

[0025] In an embodiment, the turning angle detection assembly further comprises a circuit board arranged on one side of the second transmission member. The circuit board comprises a first circuit board, a second circuit board, and a third circuit board.

[0026] The first circuit board is connected with the intermediate plate through a first connecting member, and the second transmission member is limited between the first circuit board and the intermediate plate. The first circuit board moves synchronously with the second transmission member.

[0027] The second circuit board is fixedly connected with a first connecting position on the accommodating housing. The first circuit board is signal-connected with the second circuit board through a second connecting member. The second connecting member is made of flexible material.

[0028] The second aspect of the present application provides a transmission assembly. The transmission assembly comprises the turning angle detection assembly described in the first embodiment. The transmission assembly further comprises a first driving member, a second driving member, and a third driving member.

[0029] A steering angle detection element, used to detect the rotation angle of the second transmission element; wherein, the steering angle detection element includes,

[0030] A Hall sensor, wherein the Hall sensor is disposed on the circuit board;

[0031] A magnetic component is disposed on the second transmission component, and a Hall sensor is disposed correspondingly to the magnetic component.

[0032] Compared to existing technologies, the steering angle detection component assembly device of this application eliminates the circumferential clearance when the gear teeth of the first transmission component and the gear teeth of the second transmission component are connected via a first driving component. That is, when the first and second transmission components are connected, the gear teeth of the first and second transmission components abut against each other in the circumferential direction. The steering angle detection component assembly device also reduces the radial clearance when the gear teeth of the first and second transmission components are connected via a second driving component. This achieves synchronous movement of the first and second transmission components, further improving the detection accuracy when detecting the rotation angle of the second transmission component. Attached Figure Description

[0033] Appendix Figure 1 This is a schematic diagram of a gear transmission structure in the prior art;

[0034] Appendix Figure 2 This is a schematic diagram of a structure of the steering angle detection component assembly device of this application;

[0035] Appendix Figure 3 This is a schematic diagram of a structure between the first transmission component and the second transmission component in this application;

[0036] Appendix Figure 4 This application is attached Figure 3 A partial schematic diagram of point A in the middle;

[0037] Appendix Figure 5 This is a schematic diagram of one structure of the first transmission component of this application.

[0038] Explanation of the labels in the diagram:

[0039] X, first direction;

[0040] 10. Steering angle detection component assembly device;

[0041] 100, First transmission component; 110, First gear; 111, First gear tooth; 112, First movement groove; 120, Second gear; 121, Second gear tooth; 122, Second movement groove; 130, First limiting area; 131, First tooth surface; 132, Second tooth surface; 140, First limiting component; 141, First limiting groove; 142, First limiting body;

[0042] 200, second transmission member; 210, third gear tooth;

[0043] 300, steering angle detection member; 310, Hall sensor member; 320, magnetic member;

[0044] 400, first driving member; 410, first connecting column; 420, second connecting column; 430, first elastic member;

[0045] 500, second driving member;

[0046] 600, containing housing; 610, first sleeve; 620, rotating column; 630, first connecting position;

[0047] 700, intermediate plate; 710, second sleeve; 720, first connecting point; 730, second connecting point;

[0048] 800, circuit board; 810, first circuit board; 820, second circuit board; 830, first connecting member; 840, second connecting member;

[0049] 20, driving gear;

[0050] 30, driven gear;

[0051] 40, transmission gap. DETAILED DESCRIPTION

[0052] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0053] The prior art has the technical problem of poor measurement accuracy when measuring the rotation angle of a gear due to the existence of gear backlash.

[0054] Therefore, the present application provides, in one aspect, a steering angle detection member assembly device, characterized in that the steering angle detection member assembly device comprises,

[0055] The first transmission member is used to drive the rotation of the second transmission member, and the first transmission member and the second transmission member are in gear meshing transmission;

[0056] A first driving member is used to drive the gear teeth of the first transmission member to abut against the gear teeth of the second transmission member, so as to eliminate the circumferential clearance when the gear teeth of the first transmission member and the gear teeth of the second transmission member are connected in transmission.

[0057] The second driving member is used to drive the second transmission member to move closer to the first transmission member, so as to reduce the radial clearance when the gear teeth of the first transmission member and the gear teeth of the second transmission member are connected in a transmission connection.

[0058] This application also provides a transmission assembly, wherein the transmission assembly includes the steering angle detection component assembly device described in Embodiment 1, and the transmission assembly further includes...

[0059] A steering angle detection element, used to detect the rotation angle of the second transmission element; wherein, the steering angle detection element includes,

[0060] A Hall sensor, wherein the Hall sensor is disposed on the circuit board;

[0061] A magnetic component is disposed on the second transmission component, and a Hall sensor is disposed correspondingly to the magnetic component.

[0062] Example 1:

[0063] Please refer to the attached document. Figure 1 As shown, in the prior art, gear transmission, as a common transmission structure, is widely used in the mechanical field. For example, in vehicles, wheel assemblies are rotatably connected to the frame, and the two are connected by meshing gears. A motor drives the gears to rotate, which in turn drives the wheel assembly to rotate, thereby adjusting the vehicle's direction of travel. For further precise control of driving, it is necessary to measure the gear rotation angle to determine the vehicle's direction of travel, thus enabling automatic switching of turn signals, or to measure whether the gear rotation angle is too large, thus correcting the vehicle's direction of travel. The implementation of the above methods requires precise measurement of the gear rotation accuracy. However, in the prior art, when measuring the gear rotation angle, as shown in the attached... Figure 1 As shown, due to the transmission gap between the driving gear 20 and the driven gear 30 during gear transmission, the rotation angle calculated based on the directly measured rotation angle of the gear may deviate from the actual value, resulting in poor measurement accuracy.

[0064] Please refer to the attached document. Figure 2 To be continued Figure 4As shown, the first direction X in this application refers to the height direction of the steering angle detection component assembly device, that is, the direction from top to bottom or from bottom to top of the steering angle detection component assembly device. In this application, the circuit board 800 is disposed above the intermediate plate 700, and the intermediate plate 700 is disposed below the circuit board 800.

[0065] Appendix Figure 2 This is a structural schematic diagram of an assembly device for the steering angle detection component of this application. Please refer to the attached diagram. Figure 2 As shown, the steering angle detection component assembly device of this application includes a first transmission component 100 and a second transmission component 200. The first transmission component 100 and the second transmission component 200 are connected by gear meshing. The first transmission component 100 is the driving component, and the second transmission component 200 is the driven component. The first transmission component 100 drives the second transmission component 200 to rotate, and the first transmission component 100 rotates synchronously with the steering wheel. When performing angle measurement, the steering angle detection component of this application is used to measure the angle of the second transmission component 200.

[0066] In one embodiment, both the first transmission member 100 and the second transmission member 200 are gear ring structures.

[0067] Please refer to the attached document. Figure 2 As shown, the steering angle detection component assembly device of this application also includes a receiving housing 600, which has a first receiving cavity. All other components in the steering angle detection component assembly device of this application, except for the receiving housing 600, are installed in the first receiving cavity. A first sleeve 610 is provided in the first receiving cavity. The bottom of the first sleeve 610 is connected to the receiving housing 600 along the first direction X, and the top of the first sleeve 610 extends towards the first transmission component 100 along the first direction X. A through hole is provided inside the first sleeve 610 along the first direction X. The first transmission component 100 is sleeved on the first sleeve 610. A power component passes through the through hole on the first sleeve 610 and is connected to the first transmission component 100 to drive the first transmission component 100 to rotate around the first sleeve 610.

[0068] The housing 600 has a rotating column 620 along the first direction X, and the intermediate plate 700 is rotatably connected to the housing 600 via the rotating column 620. The housing 600 also has a first connection point 630 with a socket for electrical signal connection with other components.

[0069] Please refer to the attached document. Figure 2As shown, the steering angle detection component assembly device of this application further includes an intermediate plate 700, which is used to realize the radial movement of the second transmission component 200. The intermediate plate 700 is disposed on one side of the second transmission component 200. Further, the intermediate plate 700 is disposed between the second transmission component 200 and the housing 600. The intermediate plate 700 has an arc-shaped structure and is arranged around the outside of the first sleeve 610. A second sleeve 710 is disposed on the intermediate plate 700. The bottom of the second sleeve 710 along the first direction X is fixedly connected to the intermediate plate 700, and the top of the second sleeve 710 along the second direction faces the second transmission component 200. A through hole is provided through the second sleeve 710 along the first direction X. The second transmission component 200 is sleeved outside the second sleeve 710. The first transmission component 100 is connected to the second transmission component 200 to drive the second transmission component 200 to rotate around the second sleeve 710. Simultaneously, the second transmission component 200 can move synchronously with the intermediate plate 700.

[0070] The intermediate plate 700, due to its arc-shaped structure, has a first end and a second end in its circumferential direction. The first end of the intermediate plate 700 has a first connection point 720, on which a rotating groove is formed along a first direction X. The intermediate plate 700 is rotatably connected to the rotating column 620 through the rotating groove. The second end of the intermediate plate 700 has a second connection point 730, which is connected to the second driving member 500. The second driving member 500 drives the intermediate plate 700 to rotate around the rotating column 620, further enabling the second transmission member 200 to move closer to the first transmission member 100 and reducing the radial clearance when the gear teeth of the first transmission member 100 and the second transmission member 200 are connected, thereby further improving the accuracy of angle measurement.

[0071] In one embodiment, the second driving member 500 is an elastic member, with its first end connected to the second connection point 730 and its second end connected to the housing 600. The second driving member 500 continuously provides a driving force to the intermediate plate 700 to move toward the first transmission member 100.

[0072] Please refer to the attached document. Figure 2As shown, the steering angle detection component assembly device of this application also includes a circuit board 800. The circuit board 800 is located on one side of the second transmission component 200 and works together with the intermediate plate 700 to limit the second transmission component 200 in the first direction X. To ensure that the Hall sensor 310 on the circuit board 800 moves synchronously with the magnetic component 320 on the second transmission component 200, and that the interface position between the steering angle detection component assembly device and the outside is fixed, the steering angle detection component assembly device needs to achieve signal connection with the outside through the circuit board 800. Therefore, the circuit board 800 is configured as a first circuit board 810 and a second circuit board 820. The first circuit board 810 is connected to the intermediate plate through a first connector 830. The first connector 830 includes a connecting rod and a connecting hole. The connecting rod is disposed on and connected to the intermediate plate 700. The connecting rod moves towards the first circuit board 810 along the first direction X and is inserted into the connecting hole on the circuit board 800 to achieve a fixed connection between the first circuit board 810 and the intermediate plate. The first circuit board 810 moves synchronously with the second transmission component 200. Furthermore, the second transmission component 200 is located between the first circuit board 810 and the intermediate plate 700. The second circuit board 820 is fixedly connected to the first connection point 630 on the housing 600. The first connection point 630 is provided with a plug interface for signal transmission to realize the outward signal transmission of the second circuit board 820. Since the first circuit board 810 needs to be able to move relative to the second circuit board 820, a second connector 840 is provided to connect the first circuit board 810 and the second circuit board 820. Here, the connection between the first circuit board 810 and the second circuit board 820 is a signal connection, and the second connector 840 is made of a flexible material.

[0073] Appendix Figure 3 This is a schematic diagram of a structure between the first transmission member 100 and the second transmission member 200 of this application. (Attached) Figure 4 This application is attached Figure 3 A partial schematic diagram of point A in the middle. Please refer to the attached diagram. Figure 3 and appendix Figure 4 As shown, the first transmission member 100 of this application includes a first gear 110 and a second gear 120. The first transmission member 100 radially limits the second transmission member 200 by the misalignment of the first gear 110 and the second gear 120 to form a first limiting region 130, and the first limiting region 130 limits the teeth of the second transmission member 200.

[0074] The first gear 110 and the second gear 120 are arranged sequentially along the first direction X, and are stacked, meaning the first gear 110 is placed directly on top of the second gear 120. The first gear 110 and the second gear 120 have the same specifications and dimensions. These specifications refer to the module, number of teeth, pressure angle, pitch circle, root circle, and addendum circle of the first gear 110 and the second gear 120. The addendum circle and root circle of the first gear 110 and the second gear 120 coincide, meaning that after stacking, the root circle and addendum circle of the first gear 110 and the second gear 120 coincide in the first direction X, facilitating the corresponding arrangement of the teeth on the first gear 110 and the teeth on the second gear 120.

[0075] In this application, the teeth of the first gear 110 are first teeth 111, the teeth of the second gear 120 are second teeth 121, and the teeth on the second transmission member 200 are third teeth 210. The first teeth 111 and the second teeth 121 are circumferentially offset. The first tooth surface 131 of the first tooth 111 and the second tooth surface 132 of the second tooth 121 together form the first limiting region 130. The first tooth surface 131 and the second tooth surface 132 are arranged correspondingly to each other, that is, the first gear 110 and the second tooth surface 132 cannot be arranged in the same direction. The distance between the first limiting region 130 on the pitch circle is smaller than the distance between the first gear 110 and the second gear 120 on the pitch circle, thereby reducing the range of the contact area between the third tooth 210 and the first teeth 111 and the second teeth 121, so as to further reduce the transmission gap 40 between the first transmission member 100 and the second transmission member 200. When the first transmission member 100 and the second transmission member 200 are connected, the third gear tooth 210 is located within the first limiting area 130, and the third gear tooth 210 abuts against the first tooth surface 131 and the second tooth surface 132 respectively.

[0076] Appendix Figure 5 This is a structural schematic diagram of the first transmission component 100 of this application. Please refer to the attached diagram. Figure 5 As shown, in order to achieve automatic adjustment of the first limiting area 130, the steering angle detection component assembly device of this application is further provided with a first driving component 400. The first driving component 400 is used to drive the gear teeth of the first transmission component 100 to abut against the gear teeth of the second transmission component 200, so as to eliminate the circumferential gap when the gear teeth of the first transmission component 100 and the gear teeth of the second transmission component 200 are connected by transmission.

[0077] Please refer to the attached document. Figure 5As shown, the first gear 110 of this application is provided with a first motion groove 112 along the first direction X, and the first motion groove 112 is an arc-shaped structure. The second gear 120 is provided with a second motion groove 122 along the first direction X. The first motion groove 112 and the second motion groove 122 are connected vertically. The first motion groove 112 and the second motion groove 122 are provided to further provide a first driving member 400 in the first gear 110 and the second gear 120.

[0078] The first driving component 400 includes a first connecting post 410 and a second connecting post 420. The first connecting post 410 is located within the first motion groove 112 and is connected to the first gear 110. The first connecting post 410 extends along the first direction X toward the second motion groove 122. The second connecting post 420 is located within the second motion groove 122 and is connected to the second gear 120. The second connecting post 420 extends along the first direction X toward the first motion groove 112.

[0079] The first driving member 400 also includes a first elastic member 430, which is located within the first motion groove 112 and the second motion groove 122. The first elastic member 430 is connected to the first connecting post 410 and the second connecting post 420, and drives the relative rotation between the first gear 110 and the second gear 120 to form a first limiting region 130. Due to the presence of the first elastic member 430, the spacing of the first limiting region 130 can be automatically adjusted according to the tooth width of the third gear.

[0080] Please refer to the attached document. Figure 5 As shown, the steering angle detection component assembly device of this application further includes a first limiting member 140. The first limiting member 140 is used to limit the rotation range between the first gear 110 and the second gear 120. The first limiting member 140 includes a first limiting groove 141, which is disposed in one of the first gear teeth 111 and the second gear teeth 121. The first limiting member 140 also includes a first limiting body 142, which is disposed in the other of the first gear 110 and the second gear 120. The first limiting body 142 is located in the first limiting groove 141 to limit the rotation range between the first gear 110 and the second gear 120.

[0081] Example 2:

[0082] Appendix Figure 2 This is a structural schematic diagram of an assembly device for the steering angle detection component of this application. Please refer to the attached diagram. Figure 2 As shown, one embodiment of the transmission assembly 10 of this application is illustrated. The transmission assembly 10 of this application includes the steering angle detection component assembly device of Embodiment 1.

[0083] The transmission assembly 10 of this application further includes a steering angle detection element 300, which is used to detect the rotation angle of the second transmission element 200. The steering angle detection element 300 includes a Hall effect sensor 310 and a magnetic element 320 used in conjunction. The Hall effect sensor 310 is disposed on the circuit board 800, and the Hall effect sensor 310 is disposed on the side of the first circuit board 810 near the second transmission element 200. The magnetic element 320 is disposed on the second transmission element 200, and the magnetic element 320 is disposed on the side of the second transmission element 200 near the first circuit board 810. The Hall effect sensor 310 and the magnetic element 320 are correspondingly disposed. When the second transmission element 200 rotates together with the intermediate plate 700, the magnetic element 320 rotates synchronously with the second transmission element 200.

[0084] In one embodiment, the second magnetic element 320 generates magnetism by energizing it.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0087] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A turning angle detecting member assembling device characterized by comprising: The turning angle detection member assembly device comprises, The first transmission member is used for driving the second transmission member to rotate, and the first transmission member is in gear meshing transmission with the second transmission member; The first driving member is used for driving the gear teeth of the first transmission member to abut against the gear teeth of the second transmission member, so as to cancel the circumferential gap when the gear teeth of the first transmission member and the gear teeth of the second transmission member are in transmission connection; The second driving member is used for driving the second transmission member to move close to the first transmission member, so as to reduce the radial gap when the gear teeth of the first transmission member and the gear teeth of the second transmission member are in transmission connection.

2. The steering angle detection member assembling device according to claim 1, characterized by The first transmission member comprises, The first gear and the second gear are sequentially arranged in the first direction, the first gear and the second gear have the same size, the addendum circle and the dedendum circle of the first gear and the second gear are arranged in coincidence, the gear teeth on the first gear are first gear teeth, the gear teeth on the second gear are second gear teeth, the gear teeth on the second transmission member are third gear teeth, the first gear teeth and the second gear teeth are arranged in circumferential dislocation, the first tooth surface of the first gear teeth and the second tooth surface of the second gear teeth jointly form a first limiting area, the first tooth surface and the second tooth surface are arranged in left-right correspondence, and the interval of the first limiting area on the reference circle is smaller than the gear pitch of the first gear and the second gear on the reference circle, when the first transmission member and the second transmission member are in transmission connection, the third gear teeth are located in the first limiting area, and the third gear teeth abut against the first tooth surface and the second tooth surface respectively.

3. The steering angle detection member assembling device according to claim 2, characterized by The first gear is provided with a first movement groove in the first direction, and the second gear is provided with a second movement groove in the first direction, and the first movement groove and the second movement groove are communicated; The first driving member comprises, The first connecting column is located in the first movement groove, and the first connecting column is connected with the first gear, and the first connecting column extends towards the second movement groove in the first direction; The second connecting column is located in the second movement groove, and the second connecting column is connected with the second gear, and the second connecting column extends towards the first movement groove in the first direction; The first elastic member is located in the first movement groove and the second movement groove, the first elastic member is connected with the first connecting column and the second connecting column, and drives the relative rotation between the first gear and the second gear, so as to form the first limiting area.

4. The turning angle detecting member assembling device according to claim 3, wherein The turning angle detection member assembly device further comprises a first limiting member, and the first limiting member comprises, The first limiting groove is arranged in one of the first gear and the second gear; The first limiting body is arranged in the other one of the first gear and the second gear, and the first limiting body is located in the first limiting groove, so as to limit the rotation range of the first gear and the second gear.

5. The steering angle detection member mounting device according to claim 2, characterized by The turning angle detection member assembly device comprises, The accommodating shell has a first accommodating cavity in it, and a first sleeve is arranged in the first accommodating cavity.

6. The turning angle detecting member assembling device according to claim 5, wherein The steering angle detection assembly further comprises, An intermediate plate is arranged on one side of the second transmission member, and a second sleeve is arranged on the intermediate plate in the first direction. The second transmission member is sleeved outside the second sleeve. A rotating column is arranged on the accommodating shell in the first direction. The intermediate plate is rotationally connected with the rotating column. The second driving member is connected with the intermediate plate and is used to drive the intermediate plate and the second transmission member to move towards the first transmission member, so as to reduce the radial gap when the teeth of the first transmission member are in transmission connection with the teeth of the second transmission member.

7. The steering angle detection member assembling device according to claim 6, wherein The intermediate plate has a first end and a second end in the circumferential direction thereof. The first end of the intermediate plate is provided with a first connecting point. A rotating groove is arranged on the first connecting point. The intermediate plate is rotationally connected with the rotating column through the rotating groove. The second end of the intermediate plate is provided with a second connecting point. The second connecting point of the intermediate plate is connected with the second driving member.

8. The steering angle detection member assembling device according to claim 7, wherein The second driving member is an elastic member. A first end of the second driving member is connected with the second connecting point. A second end of the second driving member is connected with the accommodating shell.

9. The steering angle detection member assembling device according to claim 6, wherein The steering angle detection assembly further comprises a circuit board. The circuit board is arranged on one side of the second transmission member. The circuit board comprises, A first circuit board is connected with the intermediate plate through a first connecting member and limits the second transmission member between the first circuit board and the intermediate plate. The first circuit board moves synchronously with the second transmission member. A second circuit board is fixedly connected with a first connecting position on the accommodating shell. The first circuit board is signal-connected with the second circuit board through a second connecting member. The second connecting member is made of flexible material.

10. A transmission assembly characterized by, The transmission assembly comprises the steering angle detection assembly described in claim 9. The transmission assembly further comprises, A steering angle detection member is used to detect the rotation angle of the second transmission member. The steering angle detection member comprises, A Hall sensor is arranged on the circuit board. A magnetic member is arranged on the second transmission member. The Hall sensor and the magnetic member are arranged correspondingly.

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