Transmission device, steering system and vehicle

Abstract

The utility model relates to a transmission device, a steering system and a vehicle. The transmission device comprises a shell; the first transmission part and the second transmission part are contained in the shell, and the first transmission part is in transmission connection with the second transmission part; the compensation assembly is contained in the shell and used for pushing the first transmission part to be close to the second transmission part so as to reduce the transmission gap; the damping assembly is located between the compensation assembly and the shell and used for reducing vibration of the compensation assembly. According to the transmission device, the damping assembly is arranged between the compensation assembly and the shell, so that the damping assembly can absorb external impact to reduce vibration of the compensation assembly, the control effect of the elastic ejector block on the transmission gap between the first transmission part and the second transmission part is guaranteed, and the transmission stability and the transmission precision of the transmission device are improved.

Description

Technical Field

[0001] The present application relates to the field of transmission, and in particular to a transmission device, a steering system and a vehicle. Background Art

[0002] During the transmission process, due to the mutual wear between the two transmission parts in the transmission device of the vehicle, the transmission gap between the two transmission parts will become larger, affecting the transmission stability and transmission accuracy of the transmission device.

[0003] In the prior art, a compensation component is usually set in the transmission device, and the compensation force of the compensation component is used to control the transmission clearance. However, during the operation of the vehicle, the external impact will act reversely on the compensation component through the transmission member, causing the compensation component to vibrate, affecting the control effect of the compensation component on the transmission clearance. As a result, the transmission stability and transmission accuracy of the transmission device are poor. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a transmission device that improves transmission stability and transmission accuracy, a steering system including the transmission device, and a vehicle including the steering system. Specifically, the present application includes the following technical solutions:

[0005] In a first aspect, an embodiment of the present application provides a transmission device, comprising:

[0006] case;

[0007] The first transmission member and the second transmission member are accommodated in the housing, and the first transmission member is transmission-connected with the second transmission member;

[0008] A compensation component is accommodated in the housing and is used to push the first transmission member toward the second transmission member to reduce the transmission gap;

[0009] The shock absorbing component is located between the compensation component and the shell, and is used to reduce the vibration of the compensation component.

[0010] The transmission device of the present application is provided with a compensation component located between the first transmission member and the housing, so that when the meshing surfaces of the first transmission member and the second transmission member are worn during the transmission process, the compensation component can push the first transmission member toward the second transmission member, thereby reducing the transmission gap between the first transmission member and the second transmission member.

[0011] The transmission device of the present application also arranges a shock-absorbing assembly between the compensation assembly and the housing so that the shock-absorbing assembly can absorb external impacts to reduce the vibration of the compensation assembly, thereby ensuring the control effect of the compensation assembly on the transmission gap between the first transmission member and the second transmission member, thereby improving the transmission smoothness and transmission accuracy of the transmission device of the present application.

[0012] In one embodiment, the shock absorbing assembly includes a first elastic member, and two ends of the first elastic member respectively abut against the compensation assembly and the housing to reduce vibration of the compensation assembly.

[0013] In one embodiment, the shock absorbing assembly further includes an end cover, which is fixedly connected to the housing, and the first elastic member is supported between the compensation assembly and the end cover.

[0014] In one embodiment, the end cap controls the compression amount of the first elastic member by adjusting the depth of the end cap screwed into the housing.

[0015] In one embodiment, the end cap is threadably connected to the housing.

[0016] In one embodiment, the shell includes a threaded hole, and the outer surface of the end cap is provided with threads, and the threads of the end cap are used to cooperate with the threaded hole to adjust the depth of the end cap screwed into the shell.

[0017] In one embodiment, the transmission device further includes a limiting member, which is used to limit the position of the end cover relative to the housing.

[0018] In one embodiment, a portion of the end cover is exposed from the shell, and the limiting member is fixed to the end of the end cover exposed from the shell and abuts against the outer surface of the shell.

[0019] In one embodiment, the limiting member is sleeved on the outer surface of the end cover exposed from the shell, and the limiting member is threadedly connected to the end cover.

[0020] In one embodiment, a thread lead angle between the thread on the outer surface of the end cover and the threaded hole is less than or equal to a friction angle between the end cover and the housing.

[0021] In one embodiment, the compensation assembly includes a gap compensation member, the gap compensation member is supported between the first transmission member and the shock absorbing assembly, and the gap compensation member is used to compensate for the gap between the first transmission member and the second transmission member.

[0022] In one embodiment, the gap compensation member includes a first section and a second section, the first section is close to the first transmission member, the second section is arranged on the side of the first section away from the first transmission member, and is abutted against the first section, and the rotation of the second section can drive the first section to rotate and make the first section move toward the first transmission member.

[0023] In one embodiment, the first end surface of the first section facing the second section includes a first helical surface, and the first helical surface extends helically around the axis of the compensation component; the second end surface of the second section facing the first section includes a second helical surface, and the second helical surface extends helically around the axis of the compensation component.

[0024] In one embodiment, the first end surface includes a plurality of first helical surfaces, and the plurality of first helical surfaces are evenly distributed along the circumference of the compensation component; the second end surface includes a plurality of second helical surfaces, and the plurality of second helical surfaces are evenly distributed along the circumference of the compensation component.

[0025] In one embodiment, the heights of each first helical surface and each second helical surface extending helically around the axis of the compensation component are equal.

[0026] In one embodiment, along the circumference of the compensation component, the helix angles of each first helical surface and each second helical surface are less than or equal to the friction angle between the first segment and the second segment.

[0027] In one embodiment, the compensation assembly further includes a second elastic member, and the second elastic member is used to drive the first section and the second section to rotate relative to each other; the first section and the second section are elastically connected via the second elastic member.

[0028] In one embodiment, the compensation assembly includes an elastic top block close to the first transmission member, the elastic top block is located between the first transmission member and the first section of the gap compensation member, and the elastic top block is used to push the first transmission member toward the second transmission member.

[0029] In one embodiment, the elastic top block includes a top block and a third elastic member, two ends of the third elastic member respectively abut against the top block and the first section, and the top block is connected to the first transmission member so that the first section can push the top block to slide through the third elastic member.

[0030] In one embodiment, at least one of the top block and the first section is provided with a groove, and the third elastic member is at least partially received in the groove.

[0031] In one embodiment, the first section is movable toward the top block until it contacts the top block to limit the compression amount of the third elastic member.

[0032] In a second aspect, an embodiment of the present application provides a steering system, including a steering input device, a steering actuator, and a transmission device, wherein the steering input device is transmission-connected to a first transmission member of the transmission device, and the steering actuator is transmission-connected to a second transmission member of the transmission device.

[0033] In a third aspect, an embodiment of the present application provides a vehicle, including a steering system.

[0034] It can be understood that the steering systems and vehicles provided in the second and third aspects of the present application have the effect of improving transmission smoothness and transmission accuracy because they adopt the transmission device provided in the first aspect of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic cross-sectional view of a transmission device provided in one embodiment of the present application;

[0036] Figure 2 This is a schematic diagram of the exploded structure of a transmission device provided in one embodiment of the present application;

[0037] Figure 3 Another cross-sectional structural schematic diagram of a transmission device provided in an embodiment of the present application;

[0038] Figure 4 Another exploded structural schematic diagram of a transmission device provided in one embodiment of the present application;

[0039] Figure 5 A schematic diagram of a partial structure of a transmission device provided in one embodiment of the present application;

[0040] Figure 6 Another partial structural schematic diagram of a transmission device provided in one embodiment of the present application;

[0041] Figure 7 This is a structural schematic diagram of the first section of a gap compensation member provided in one embodiment of the present application;

[0042] Figure 8 A schematic structural diagram of a second section of a gap compensation member provided in an embodiment of the present application;

[0043] Fig. 9 Another structural schematic diagram of the first section of the gap compensation member provided in one embodiment of the present application;

[0044] Fig.10 Another structural schematic diagram of the second section of the gap compensation member provided in one embodiment of the present application;

[0045] Fig.11 This is another structural schematic diagram of the first section of the gap compensation member provided in one embodiment of the present application;

[0046] Fig.12 This is another structural schematic diagram of the second section of the gap compensation member provided in an embodiment of the present application.

[0047] The reference numerals are: 100-transmission device; 10-housing; 11-threaded hole; 21-first transmission member; 22-second transmission member; 30-compensation assembly; 31-gap compensation member; 311-first section; 3111-first end surface; 3112-first helical surface; 3113-second groove; 3114-first protrusion; 3115-first receiving groove; 312-second section; 3121-second end surface; 3122-second helical surface; 3123-second protrusion; 3124-second receiving groove; 3125-third protrusion; 3126-third protrusion; 3127-third protrusion; 3128-third protrusion; 3129-third protrusion; 3130-third protrusion; 3131-third protrusion; 3132-third protrusion; 3133-third protrusion; 3134-third protrusion; 3135-third protrusion; 3136-third protrusion; 3137-third protrusion; 3138-third protrusion; 3139-third protrusion; 3140-third protrusion; 3141-third protrusion; 3142-third protrusion; 3143-third protrusion; 3144-third protrusion; 3145-third protrusion; 3146-third protrusion; 3147-third protrusion; 3148-third protrusion; 3149-third protrusion; 3150-third protrusion; 3151-third protrusion; 3152-third protrusion; 3153-third protrusion; 3154-third protrusion; 315 131-first limiting protrusion; 3132-second limiting protrusion; 314-connecting hole; 32-second elastic member; 33-elastic top block; 331-top block; 3311-first groove; 3312-friction part; 3313-circumferential receiving groove; 3314-annular groove; 332-third elastic member; 34-groove; 40-shock absorbing assembly; 41-first elastic member; 42-end cover; 421-guide hole; 422-fourth protrusion; 423-third receiving groove; 50-limiting member; 60-shaft plug; 70-shock absorbing ring; 80-buffer member. DETAILED DESCRIPTION

[0048] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0049] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be used to implement. The serial numbers for the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, include direct and indirect connections (couplings). The directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, 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 therefore cannot be understood as a limitation to the present application.

[0050] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including", "may include", "include", or "may include" used in this application indicate the existence of the corresponding functions, operations, elements, etc. disclosed, and do not limit one or more other functions, operations, elements, etc. In addition, the terms "including" or "include" indicate the existence of the corresponding features, numbers, steps, operations, elements, components, or combinations thereof disclosed in the specification, and do not exclude the existence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusions.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0052] The present application provides a vehicle, which includes a steering system. The steering system includes a steering input device, a steering actuator and a transmission device. The transmission device includes a first transmission member and a second transmission member that are transmission-connected to each other, the first transmission member is transmission-connected to the steering input device, and the second transmission member is transmission-connected to the steering actuator.

[0053] Based on the transmission cooperation between the first transmission member and the second transmission member, the torque output by the steering input device is amplified by the transmission device and transmitted to the steering actuator. The steering actuator realizes the corresponding execution function of the steering structure based on the amplified torque.

[0054] In one embodiment, the steering input device includes a steering wheel, and the steering actuator includes a wheel. The steering wheel controls the direction of the wheel through the transmission device, thereby realizing the steering function of the vehicle. It can be understood that in another embodiment, the steering input device and the steering actuator can also be other structures, which are not particularly limited in this application.

[0055] See also Figure 1 The cross-sectional structure diagram of a transmission device 100 provided in one embodiment of the present application is shown in FIG. Figure 2The exploded structural diagram of a transmission device 100 provided in one embodiment of the present application is shown in FIG. Figure 3 Another cross-sectional structural diagram of a transmission device 100 provided in an embodiment of the present application is shown, and Figure 4 Another exploded structural diagram of a transmission device 100 provided in one embodiment of the present application is shown. Figure 2 for Figure 1 Schematic diagram of the decomposition structure, Figure 4 for Figure 3 Schematic diagram of the decomposition structure.

[0056] like Figure 1-Figure 4 As shown, the transmission device 100 of the present application includes a housing 10, a first transmission member 21, a second transmission member 22, a compensation assembly 30 and a shock absorbing assembly 40. The first transmission member 21, the second transmission member 22, the compensation assembly 30 and the shock absorbing assembly 40 are all accommodated in the housing 10. The first transmission member 21 and the second transmission member 22 are connected to each other in a transmission manner.

[0057] Along the arrangement direction of the first transmission member 21 and the second transmission member 22, the first transmission member 21 is closer to the compensation component 30 than the second transmission member 22. The compensation component 30 is located between the first transmission member 21 and the housing 10. The axial direction of the compensation component 30 coincides with the arrangement direction of the first transmission member 21 and the second transmission member 22. The compensation component 30 abuts against the first transmission member 21, and the compensation component 30 is used to compensate for the transmission clearance increased by the wear during the transmission of the first transmission member 21 and the second transmission member 22.

[0058] During the operation of the transmission device 100 of the present application, the meshing surface between the first transmission member 21 and the second transmission member 22 will be gradually worn as the transmission process proceeds, thereby causing the transmission gap between the first transmission member 21 and the second transmission member 22 to increase.

[0059] When the transmission gap between the first transmission member 21 and the second transmission member 22 is too large, the radial thickness of the transmission teeth of the first transmission member 21 and the second transmission member 22 that mesh with each other is relatively small, which results in a reduction in the service life of the first transmission member 21 and the second transmission member 22. At the same time, when the first transmission member 21 and the second transmission member 22 need to be reversing transmission, the relatively large transmission gap will cause the first transmission member 21 and the second transmission member 22 to separate from each other during the transmission process, thereby affecting the transmission stability and transmission accuracy of the first transmission member 21 and the second transmission member 22.

[0060] On the other hand, when the first transmission member 21 and the second transmission member 22 need to switch transmission, the relatively large transmission gap can also cause the first transmission member 21 and the second transmission member 22 to collide with each other and produce abnormal noise, thereby affecting the user experience.

[0061] Therefore, the transmission device 100 of the present application is provided with the compensation component 30, so that when the first transmission member 21 and the second transmission member 22 produce transmission wear, the compensation component 30 can push the first transmission member 21 to slide toward the second transmission member 22, and make the first transmission member 21 and the second transmission member 22 move closer to each other. In this way, the transmission clearance between the first transmission member 21 and the second transmission member 22 that increases due to transmission wear is reduced. The phenomenon that the first transmission member 21 and the second transmission member 22 collide during the transmission process due to excessive transmission clearance is avoided, thereby ensuring the transmission stability and transmission accuracy of the transmission device 100 of the present application.

[0062] In this embodiment, the first transmission member 21 is a rack, and the second transmission member 22 is a gear. It is understandable that in other embodiments, the first transmission member 21 and the second transmission member 22 can also be matched and set based on actual usage. For example, the first transmission member 21 and the second transmission member 22 are a worm wheel and a worm, respectively, or the first transmission member 21 and the second transmission member 22 are two gears, respectively. This application does not specifically limit this.

[0063] like Figure 1-Figure 4 As shown, along the axial direction of the compensation assembly 30, the shock absorbing assembly 40 is located between the compensation assembly 30 and the housing 10. The shock absorbing assembly 40 is used to absorb external impact to reduce the vibration of the compensation assembly 30.

[0064] For details, please refer to Figure 5 The partial structural diagram of the transmission device 100 provided in one embodiment of the present application is shown, and please refer to Figure 6 Another partial structural diagram of the transmission device 100 provided in one embodiment of the present application is shown in FIG. Figure 1-Figure 4 .in, Figure 5 for Figure 1 and Figure 2 Schematic diagram of the local structure, Figure 6 for Figure 3 and Figure 4 Schematic diagram of the local structure.

[0065] In one embodiment, if Figure 1-Figure 6 As shown, the shock absorbing assembly 40 includes a first elastic member 41, and the two ends of the first elastic member 41 respectively abut against the compensation assembly 30 and the housing 10. The first elastic member 41 is elastic along the axial direction of the compensation assembly 30, and the compression amount of the first elastic member 41 is less than the maximum compression amount of the first elastic member 41.

[0066] During the operation of the transmission device 100, external impact may act on the compensation component 30 via the first transmission member 21 and the second transmission member 22, causing the compensation component 30 to produce axial displacement along its own axis. In addition, since the compensation component 30 abuts against the first transmission member 21, that is, the compensation component 30 defines the relative position relationship between the first transmission member 21 and the second transmission member 22.

[0067] When the compensation component 30 generates axial displacement in a direction away from the first transmission member 21, the compensation component 30 is separated from the first transmission member 21. During the transmission of the second transmission member 22 by the first transmission member 21, the first transmission member 21 may generate axial shaking under the action of the transmission force of the second transmission member 22, thereby causing radial collision and noise between the first transmission member 21 and the second transmission member 22. This further reduces the transmission stability and transmission accuracy of the first transmission member 21 and the second transmission member 22.

[0068] When the compensation component 30 is axially displaced toward the direction close to the first transmission member 21, the elastic top block 33 causes the first transmission member 21 to squeeze the second transmission member 22, thereby increasing the transmission friction between the first transmission member 21 and the second transmission member 22. This in turn causes increased transmission wear between the first transmission member 21 and the second transmission member 22. At the same time, when the external impact force is too large, the force of the elastic top block 33 pushing the first transmission member 21 is also relatively large, which may cause an axial collision between the first transmission member 21 and the second transmission member 22 and generate noise, affecting the user's experience.

[0069] On the other hand, during the transmission process of the first transmission member 21 and the second transmission member 22, the transmission clearance between the first transmission member 21 and the second transmission member 22 may be affected by other factors other than external impact, for example, manufacturing error, installation error, and dimensional change of the first transmission member 21 and the second transmission member 22 caused by temperature change.

[0070] Therefore, the transmission device 100 of the present application arranges the shock absorbing assembly 40 between the compensation assembly 30 and the housing 10, so that the first elastic member 41 in the shock absorbing assembly 40 can absorb the external impact and reduce the vibration of the compensation assembly 30 caused by the external impact, thereby ensuring the control effect of the compensation assembly 30 on the transmission clearance between the first transmission member 21 and the second transmission member 22, so that the transmission clearance between the first transmission member 21 and the second transmission member 22 is within a preset range. In addition, the transmission stability and transmission accuracy of the transmission device 100 of the present application are improved.

[0071] In the prior art, the elastic member inside the compensation component is usually used to absorb the external vibration. However, in the prior art, as the transmission wear between the first transmission member and the second transmission member increases, the elastic force stored in the elastic member inside the compensation component will gradually decrease, and the ability of the elastic member to absorb external vibration will also gradually weaken. When the elastic force of the elastic member is too small, when the external vibration is transmitted to the elastic member, it is difficult to ensure the abutment relationship between the compensation component and the first transmission member, thereby causing abnormal noise in the transmission device.

[0072] Therefore, compared with the prior art, the setting of the shock absorbing assembly 40 in the transmission device 100 of the present application enables the shock absorbing assembly 40 to maintain a relatively large compression amount to absorb external vibrations during the process of the compensation assembly 30 pushing the first transmission member 21, thereby ensuring the control effect of the compensation assembly 30 on the transmission gap between the first transmission member 21 and the second transmission member 22, so that the transmission gap between the first transmission member 21 and the second transmission member 22 is within a preset range. In addition, the transmission stability and transmission accuracy of the transmission device 100 of the present application are improved.

[0073] It is understandable that in other embodiments, the shock absorbing assembly 40 may also adopt other shock absorbing solutions to achieve shock absorption, and the present application does not impose any particular limitation on this.

[0074] In one embodiment, if Figure 1-Figure 6 As shown, the shock absorbing assembly 40 further includes an end cap 42. The end cap 42 is threadedly connected to the housing 10. Along the axial direction of the compensation assembly 30, the first elastic member 41 is held between the compensation assembly 30 and the end cap 42. It can be understood that the threaded connection between the end cap 42 and the housing 10 allows the end cap 42 to control the depth of screwing itself into the housing 10 to control the compression amount of the first elastic member 41, thereby controlling the absorption effect of the first elastic member 41 on the vibration of the compensation assembly 30.

[0075] In one embodiment, if Figure 1-Figure 6 As shown, the housing 10 includes a threaded hole 11, and the first transmission member 21, the second transmission member 22 and the compensation assembly 30 are all received in the threaded hole 11, and the axis of the threaded hole 11 coincides with the axis of the compensation assembly 30. The threaded hole 11 is threadedly connected to the end cover 42. The end cover 42 is partially exposed from the threaded hole 11 of the housing 10. Based on the threaded connection between the end cover 42 and the housing 10, the first elastic member 41 is supported between the end cover 42 and the compensation assembly 30. It can be understood that the end cover 42 is partially exposed from the housing 10 so that the user can adjust the depth of the end cover 42 screwed into the housing 10 through the part of the end cover 42 exposed from the housing 10, thereby realizing the control of the compression amount of the first elastic member 41.

[0076] Based on different use environments of the transmission device 100 of the present application, the changes in the transmission clearance caused by external impacts and other factors that the transmission device 100 of the present application may be subjected to during operation are relatively different. That is, the threaded connection between the end cover 42 and the housing 10, and the partial exposure of the end cover 42, allow the user to match and set the compression amount of the first elastic member 41 based on different use environments, thereby improving the use range of the transmission device 100 of the present application.

[0077] In one embodiment, if Figure 3 and Figure 4 As shown, the transmission device 100 of the present application further includes a limiter 50, which is sleeved on the outer surface of the end cover 42 that exposes the threaded hole 11 and is threadedly connected to the end cover 42. The limiter 50 faces the end surface of the housing 10 and abuts against the housing 10 to limit the position of the end cover 42 relative to the housing 10.

[0078] In another embodiment, the end cap 42 further includes an inner hole (not shown in the figure), and the inner circumference of the inner hole is provided with threads. It can be understood that the user can reach into the inner hole through an external device to control the depth of the end cap 42 screwed into the housing 10.

[0079] In one embodiment, the thread lead angle between the thread on the outer surface of the end cover 42 and the threaded hole 11 is less than or equal to the friction angle between the end cover 42 and the housing 10, so that the end cover 42 and the housing 10 are axially self-locked. It can be understood that the formation of the axial self-locking between the end cover 42 and the housing 10 prevents the end cover 42 from rotating relative to the housing 10 under the action of external impact or elastic force, thereby ensuring the screw-in depth of the end cover 42 and the compression amount of the first elastic member 41.

[0080] In one embodiment, if Figure 1-Figure 4 As shown, the compensation assembly 30 further includes a gap compensation member 31. Along the axial direction of the compensation assembly 30, the gap compensation member 31 is held between the first transmission member 21 and the shock absorbing assembly 40. The gap compensation member 31 is used to compensate for the gap between the first transmission member 21 and the second transmission member 22. The gap compensation member 31 can push the first transmission member 21 to move toward the second transmission member 22.

[0081] When the transmission gap between the first transmission member 21 and the second transmission member 22 increases due to transmission wear, the gap compensation member 31 pushes the first transmission member 21 to move closer to the second transmission member 22. This reduces the transmission gap between the first transmission member 21 and the second transmission member 22, increases the service life of the first transmission member 21 and the second transmission member 22, improves the user experience, and improves the transmission accuracy and transmission stability of the transmission device 100 of the present application.

[0082] In one embodiment, the gap compensating member 31 includes a first section 311 and a second section 312. The second section 312 is disposed on a side of the first section 311 away from the first transmission member 21, and abuts against the first section 311. The second section 312 is closer to the shock absorbing assembly 40 than the first section 311, and the second section 312 abuts against the first elastic member 41 of the shock absorbing assembly 40. The first section 311 and the second section 312 rotate relative to each other so that the gap compensating member 31 can push the first transmission member 21 toward the second transmission member 22.

[0083] That is, when the transmission gap between the first transmission member 21 and the second transmission member 22 increases, the second section 312 of the gap compensation member 31 can rotate relative to the shell 10. The rotation of the second section 312 can drive the first section 311 of the gap compensation member 31 to rotate relative to the shell 10, and make the first section 311 move toward the first transmission member 21 to push the first transmission member 21 toward the second transmission member 22, thereby realizing the gap compensation between the first transmission member 21 and the second transmission member 22.

[0084] For details, please refer to Figure 7 See FIG. 1 for a schematic structural diagram of a first section 311 of a gap compensation member 31 provided in an embodiment of the present application. Figure 8 The schematic diagram of the structure of the second section 312 of the gap compensation member 31 provided in one embodiment of the present application is shown in FIG. Fig. 9 Another structural schematic diagram of the first section 311 of the gap compensation member 31 provided in one embodiment of the present application is shown, and please refer to Fig.10 Another structural schematic diagram of the second section 312 of the gap compensation member 31 provided in one embodiment of the present application is shown. Figure 7 and Figure 8 correspond Figure 1 and Figure 2 The two sections of the gap compensation member 31 in the structural schematic diagram are shown. Fig. 9 and Fig.10 correspond Figure 3 and Figure 4 The structural schematic diagram shows two sections of the gap compensation member 31.

[0085] like Figure 7-Figure 10 As shown, the first end surface 3111 of the first section 311 toward the second section 312 includes a first helical surface 3112, and the first helical surface 3112 extends helically around the axis of the compensation component 30. The second end surface 3121 of the second section 312 toward the first section 311 includes a second helical surface 3122, and the second helical surface 3122 extends helically around the axis of the compensation component 30. The first helical surface 3112 and the second helical surface 3122 abut against each other.

[0086] Specifically, Figure 7-Figure 10As shown, when the first section 311 rotates relative to the housing 10 and the second section 312 is stationary relative to the housing 10, the first helical surface 3112 will slide relative to the second helical surface 3122 along the spiral extension direction of the second helical surface 3122, thereby causing the first section 311 to slide along the axial direction of the compensation component 30 toward the first transmission member 21.

[0087] When the second section 312 rotates relative to the shell 10 and the first section 311 is stationary relative to the shell 10, the second helical surface 3122 slides relative to the first helical surface 3112 along the spiral extension direction of the first helical surface 3112, thereby causing the second section 312 to slide toward the shell 10 along the axial direction of the compensation component 30.

[0088] That is, the abutment relationship between the first section 311 and the second section 312 causes the first section 311 and the second section 312 to slide in opposite directions along the axial direction of the compensation component 30 when the first section 311 and the second section 312 rotate relative to each other, thereby increasing the axial length of the gap compensation member 31.

[0089] In this embodiment, the second section 312 can rotate under the action of the remaining structures of the compensation assembly 30. When the transmission gap between the first transmission member 21 and the second transmission member 22 increases, the second section 312 rotates relative to the housing 10.

[0090] When the second section 312 rotates relative to the housing 10, the first section 311 cooperates with the abutting relationship between the first helical surface 3112 and the second helical surface 3122, and the first section 311 rotates relative to the second section 312 and slides toward the first transmission member 21 to push the first transmission member 21 toward the second transmission member 22. Thus, the transmission gap between the first transmission member 21 and the second transmission member 22 is reduced, and the transmission stability and transmission accuracy of the transmission device 100 of the present application are improved.

[0091] It can be understood that in other embodiments, one of the first helical surface 3112 of the first section 311 and the second helical surface 3122 of the second section 312 extends helically around the axis of the compensation component 30 .

[0092] In one embodiment, if Figure 6 and Figure 7 As shown, the first end surface 3111 includes a plurality of first helical surfaces 3112 , and the second end surface 3121 includes a plurality of second helical surfaces 3122 . The plurality of first helical surfaces 3112 and the plurality of second helical surfaces 3122 are evenly distributed along the circumference of the compensation component 30 .

[0093] Each first helical surface 3112 abuts against a second helical surface 3122. When the transmission gap between the first transmission member 21 and the second transmission member 22 increases, relative rotation occurs between the first section 311 and the second section 312. At this time, each first helical surface 3112 slides along the spiral extension direction of the corresponding second helical surface 3122 to convert the rotation of the second section 312 into movement toward the first transmission member 21, so that the first transmission member 21 moves closer to the second transmission member 22, thereby achieving gap compensation between the first transmission member 21 and the second transmission member 22.

[0094] In one embodiment, each first helical surface 3112 and each second helical surface 3122 have the same height when they are spirally extended around the axis of the compensation component 30. Since the first section 311 and the second section 312 rotate relative to each other, and the first section 311 rotates toward the first transmission member 21, the increase in the axial length of the gap compensation member 31 is limited to the smaller height between the first helical surface 3112 and the second helical surface 3122 that abut against each other.

[0095] That is, when relative sliding occurs between the first helical surface 3112 and the second helical surface 3122, the greater the difference between the spiral extension heights of the first helical surface 3112 and the second helical surface 3122 along the axis of the compensation component 30, the shorter the distance of relative sliding between the first helical surface 3112 and the second helical surface 3122, and correspondingly, the smaller the increase in the axial length of the gap compensation member 31.

[0096] It can be understood that setting the spiral extension heights of each first helical surface 3112 and each second helical surface 3122 equal around the axis of the compensation component 30 can avoid the first section 311 and the second section 312 being disengaged from each other during the relative rotation of the first section 311 and the second section 312, thereby affecting the movement of the first section 311.

[0097] In one embodiment, along the circumference of the compensation component 30 , the helix angles of each first helical surface 3112 and each second helical surface 3122 are less than or equal to the friction angle between the first section 311 and the second section 312 to achieve axial self-locking of the first section 311 and the second section 312 .

[0098] It can be understood that the axial self-locking of the first section 311 and the second section 312 ensures that the axial length of the gap compensation member 31 will not change under the elastic force in the first elastic member 41, thereby ensuring the axial size of the gap compensation member 31. The control effect of the gap compensation member 31 on the transmission gap between the first transmission member 21 and the second transmission member 22 is ensured, thereby improving the transmission stability and transmission accuracy of the transmission device 100 of the present application.

[0099] In one embodiment, if Figure 1-Figure 4 As shown, the compensation assembly 30 further includes a second elastic member 32, and the first section 311 and the second section 312 of the gap compensation member 31 are elastically connected via the second elastic member 32. The second elastic member 32 is used to drive the first section 311 and the second section 312 of the gap compensation member 31 to rotate relative to each other.

[0100] In one embodiment, the compensation assembly 30 includes an elastic top block 33, which is located between the first transmission member 21 and the gap compensation member 31 and abuts against the first transmission member 21. The gap compensation member 31 pushes the first transmission member 21 toward the second transmission member 22 through the elastic top block 33.

[0101] Specifically, when the first transmission member 21 and the second transmission member 22 produce transmission wear, the second elastic member 32 drives the first section 311 and the second section 312 of the gap compensation member 31 to rotate relative to each other, so as to increase its own axial dimension and make the first section 311 of the gap compensation member 31 slide toward the elastic top block 33. The gap compensation member 31 compresses the elastic top block 33 to increase the elastic force in the elastic top block 33, and makes the elastic top block 33 push the first transmission member 21 and the second transmission member 22 to move closer to each other. Thus, the transmission gap between the first transmission member 21 and the second transmission member 22 increased due to transmission wear is reduced.

[0102] In this embodiment, elastic force is stored in the elastic top block 33. When the first transmission member 21 and the second transmission member 22 are worn, the elastic force in the elastic top block 33 can also cooperate with the elastic force of the second elastic member 32 transmitted to the elastic top block 33 via the gap compensation member 31, pushing the first transmission member 21 to slide toward the second transmission member 22. Thereby, the transmission gap between the first transmission member 21 and the second transmission member 22 is reduced. That is, the provision of the elastic top block 33 improves the response speed of the first transmission member 21 and the second transmission member 22 whose transmission gap increases due to wear, and improves the transmission stability and transmission accuracy of the transmission device 100 of the present application.

[0103] It can be understood that the matching arrangement of the gap compensating member 31 and the elastic top block 33 enables the elastic force in the elastic top block 33 to timely reduce the transmission gap when transmission wear occurs between the first transmission member 21 and the second transmission member 22. The gap compensating member 31 increases its own axial dimension by using the elastic force of the second elastic member 32 and compresses the elastic top block 33 to increase the elastic force of the elastic top block 33.

[0104] That is, the clearance compensation member 31 is used to compensate for the axial stroke of the elastic top block 33 , so as to ensure the control effect of the elastic force in the elastic top block 33 on the transmission clearance between the first transmission member 21 and the second transmission member 22 .

[0105] In one embodiment, if Figure 1-Figure 4As shown, the elastic top block 33 includes a top block 331 and a third elastic member 332. Along the axial direction of the compensation component 30, a groove 34 is provided between the top block 331 and the gap compensation member 31. The third elastic member 332 is received in the groove 34 and respectively abuts against the first section 311 of the gap compensation member 31 and the top block 331.

[0106] Specifically, along the axial direction of the compensation assembly 30, a first groove 3311 is provided on the end surface of the top block 331 facing the gap compensation member 31, and a second groove 3113 is provided on the end surface of the first section 311 of the gap compensation member 31 facing the top block 331. The first groove 3311 is aligned with the second groove 3113 to form a groove 34.

[0107] Along the axial direction of the compensation assembly 30 , one end of the third elastic member 332 is received and abutted in the first groove 3311 , and the other end of the third elastic member 332 is received and abutted in the second groove 3113 .

[0108] After the assembly is completed, the third elastic member 332 is in a pre-compression state, and the elastic force stored in the third elastic member 332 after the assembly is completed is equal to the elastic force stored in the first elastic member 41. That is, the elastic forces acting on the opposite ends of the gap compensation member 31 along the axial direction of the compensation assembly 30 are balanced. Thus, the transmission device 100 of the present application is in a dynamic balance state.

[0109] When the transmission gap between the first transmission member 21 and the second transmission member 22 increases due to transmission wear, the elastic force stored in the third elastic member 332 pushes the top block 331 to slide toward the first transmission member 21 and pushes the first transmission member 21 to reduce the transmission gap between it and the second transmission member 22.

[0110] At this time, the elastic force in the third elastic member 332 is reduced, the dynamic equilibrium state of the two opposite ends of the gap compensation member 31 is broken, and the elastic force of the third elastic member 332 acting on the first section 311 of the gap compensation member 31 is reduced. The second elastic member 32 drives the first section 311 and the second section 312 to rotate relative to each other, and cooperates with the first end surface 3111 and the second end surface 3121 to make the first section 311 slide toward the top block 331.

[0111] As for the second section 312, the second section 312 will also rotate relative to the housing 10 and slide along the axial direction of the compensation component 30 toward the shock absorbing component 40, thereby increasing the elastic force of the first elastic component 41. As the elastic force of the third elastic component 332 is released, the elastic force in the first elastic component 41 will also push the gap compensation component 31 to slide toward the top block 331, thereby reducing the elastic force in the first elastic component 41.

[0112] When the first section 311 contacts the end surface of the top block 331 provided with the first groove 3311, the first section 311 stops sliding. At the same time, as the first section 311 contacts the top block 331, the third elastic member 332 received in the groove 34 is compressed to the same amount as the initial compression. Correspondingly, the compression amount of the first elastic member 41 is also consistent with its initial compression amount. At this time, the elastic forces of the first elastic member 41 and the third elastic member 332 are balanced.

[0113] That is, the transmission device 100 of the present application sets a groove 34 between the first section 311 of the gap compensation member 31 and the top block 331, and sets a third elastic member 332 in the groove 34, so that the gap compensation member 31 can compensate for the elastic force in the third elastic member 332 after the third elastic member 332 drives the top block 331 to slide. Thus, the control effect of the compensation component 30 on the transmission gap between the first transmission member 21 and the second transmission member 22 is ensured, and the transmission stability and transmission accuracy of the transmission device 100 of the present application are improved.

[0114] On the other hand, the matching arrangement of the first elastic member 41, the third elastic member 332 and the second elastic member 32 in the gap compensation member 31 enables the top block 331 to still rely on the first elastic member 41 to absorb the vibration of the compensation component 30 after reducing the transmission gap between the first transmission member 21 and the second transmission member 22, thereby further ensuring the control effect of the compensation component 30 on the transmission gap between the first transmission member 21 and the second transmission member 22, thereby improving the transmission smoothness and transmission accuracy of the transmission device 100 of the present application.

[0115] In one embodiment, if Figure 1-Figure 4 As shown, along the axial direction of the compensation component 30, the end of the top block 331 facing the first transmission member 21 is provided with a friction portion 3312, and the friction portion 3312 is used to abut against the first transmission member 21. Based on the rotation of the first transmission member 21 relative to the housing 10 during operation. It can be understood that the setting of the friction portion 3312 can reduce the influence of the top block 331 on the transmission process of the first transmission member 21 while ensuring the control effect of the top block 331 on the transmission gap between the first transmission member 21 and the second transmission member 22. Thereby, the transmission efficiency between the first transmission member 21 and the second transmission member 22 is guaranteed, and the transmission efficiency of the transmission device 100 of the present application is guaranteed.

[0116] In one embodiment, if Figure 7-Figure 10 As shown, the outer circumference of the first section 311 of the gap compensation member 31 includes a first limiting protrusion 3131 extending toward the second section 312 , and the outer circumference of the second section 312 of the gap compensation member 31 includes a second limiting protrusion 3132 extending toward the first section 311 .

[0117] Along the circumference of the compensation component 30 , the first limiting protrusion 3131 and the second limiting protrusion 3132 are arranged at intervals.

[0118] It can be understood that the arrangement of the first limiting protrusion 3131 and the second limiting protrusion 3132 can limit the relative rotation angle of the first section 311 and the second section 312 of the gap compensation member 31, so that the rotation angle of the first section 311 and the second section 312 can match the spiral extension of the first helical surface 3112 and the second helical surface 3122, and avoid the phenomenon that the first end surface 3111 and the second end surface 3121 are separated due to an excessive rotation angle. In this way, the abutting relationship between the first section 311 and the second section 312 of the gap compensation member 31 is ensured, and the displacement compensation function of the gap compensation member 31 on the elastic top block 33 is ensured.

[0119] In one embodiment, there are multiple first limiting protrusions 3131, and multiple second limiting protrusions 3132. Along the circumferential direction of the compensation component 30, one second limiting protrusion 3132 is provided between each two adjacent first limiting protrusions 3131, and one first limiting protrusion 3131 is provided between each two adjacent second limiting protrusions 3132. In other embodiments, along the axial direction of the compensation component 30, multiple second limiting protrusions 3132 are provided between each two adjacent first limiting protrusions 3131, and multiple first limiting protrusions 3131 are provided between each two adjacent second limiting protrusions 3132.

[0120] In one embodiment, please refer to Figure 1-Figure 4 The gap compensating member 31 includes a connecting hole 314 that passes through the first section 311 and the second section 312, and the end cover 42 includes a guide hole 421 that communicates with the connecting hole 314. The connecting hole 314 and the guide hole 421 are provided so that the user can insert an external device into the connecting hole 314 through the guide hole 421, so as to use the external device to make the first section 311 and the second section 312 of the gap compensating member 31 rotate relative to each other, thereby controlling the axial position of the top block 331. In this way, the initial transmission gap between the first transmission member 21 and the second transmission member 22 can be controlled.

[0121] In one embodiment, if Figure 1-Figure 4 As shown, the transmission device 100 of the present application also includes a shaft plug 60, which is used to seal the guide hole 421 to prevent external impurities from entering the compensation component 30 through the guide hole 421, thereby ensuring the compensation component 30's control function on the transmission clearance between the first transmission member 21 and the second transmission member 22.

[0122] In one embodiment, if Figure 1-Figure 4As shown, the transmission device 100 of the present application further includes a damping ring 70, which is embedded in the circumferential receiving groove 3313 of the outer circumferential surface of the top block 331 along the circumference of the compensation component 30. The damping ring 70 also abuts against the inner wall of the housing 10 along the radial direction of the compensation component 30.

[0123] During the operation of the transmission device 100, the transmission force between the first transmission member 21 and the second transmission member 22 may cause radial displacement of the top block 331. It can be understood that the damping ring 70 can absorb the radial displacement of the top block 331, prevent the top block 331 from colliding with the housing 10 along the radial direction of the compensation component 30, and ensure the smooth operation of the compensation component 30. Thus, the smooth operation of the transmission device 100 of the present application is ensured.

[0124] In one embodiment, if Figure 1-Figure 4 As shown, there are multiple damping rings 70, and multiple damping rings 70 are embedded in the outer peripheral surface of the top block 331 along the axial direction of the compensation component 30. It can be understood that in this embodiment, the number and setting position of the damping rings 70 can be matched and set based on the actual damping requirements of the transmission device 100 of the present application. The present application does not impose any special restrictions on this.

[0125] In one embodiment, if Figure 1-Figure 4 As shown, the surface of the top block 331 facing the gap compensation member 31 is also provided with an annular groove 3314, and the annular groove 3314 surrounds the outer edge of the first groove 3311. The transmission device 100 of the present application also includes a buffer member 80, which is embedded in the annular groove 3314 along the axial direction of the compensation component 30 and partially exposed from the annular groove 3314.

[0126] The arrangement of the buffer 80 ensures that when the first section 311 of the gap compensating member 31 slides toward the top block 331, the buffer 80 must be compressed before contacting the end surface of the top block 331. That is, the arrangement of the buffer 80 reduces the impact of the first section 311 of the gap compensating member 31 on the top block 331, and avoids the phenomenon that the top block 331 directly transmits the impact force of the gap compensating member 31 to the first transmission member 21, thereby ensuring the transmission gap between the first transmission member 21 and the second transmission member 22. The transmission stability of the transmission device 100 of the present application is improved.

[0127] In the above embodiments, the second elastic member 32 is used to achieve relative rotation between the first section 311 and the second section 312 of the gap compensation member 31 , thereby changing the axial dimension of the gap compensation member 31 .

[0128] Specifically, Figure 1 and Figure 2As shown, along the axial direction of the compensation component 30, the second elastic member 32 is located between the first section 311 of the gap compensation member 31 and the second section 312 of the gap compensation member 31. Along the circumferential direction of the compensation component 30, the two ends of the second elastic member 32 respectively abut against the first section 311 of the gap compensation member 31 and the second section 312 of the gap compensation member 31.

[0129] After the assembly is completed, the second elastic member 32 is in a pre-compression state. When the elastic top block 33 pushes the first transmission member 21 to reduce the transmission gap between the first transmission member 21 and the second transmission member 22, the elastic force stored in the second elastic member 32 simultaneously drives the first section 311 and the second section 312 to rotate relative to the housing 10.

[0130] Based on the abutment between the first elastic member 41 and the second section 312, it can be understood that as the elastic top block 33 pushes the first transmission member 21, the elastic force stored in the elastic top block 33 decreases, and the abutment force of the elastic top block 33 on the first section 311 decreases. Under the action of the second elastic member 32, the first section 311 can cooperate with the first end face 3111 and the second end face 3121 to rotate toward the elastic top block 33, thereby realizing the change of the axial length of the gap compensation member 31.

[0131] In one embodiment, if Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, along the axial direction of the compensation assembly 30, the first section 311 of the gap compensation member 31 includes a first protrusion 3114, which extends toward the second section 312 of the gap compensation member 31. The second section 312 of the gap compensation member 31 includes a second protrusion 3123, which extends toward the first section 311 of the gap compensation member 31.

[0132] Along the circumference of the compensation assembly 30, the first protrusion 3114 and the second protrusion 3123 are circumferentially spaced, and the two ends of the second elastic member 32 respectively abut against the first protrusion 3114 and the second protrusion 3123. That is, the second elastic member 32 drives the first section 311 and the second section 312 to rotate relative to each other through the first protrusion 3114 and the second protrusion 3123.

[0133] In one embodiment, if Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, along the axial direction of the compensation assembly 30, a first receiving groove 3115 and a second receiving groove 3124 aligned with each other are provided between the first section 311 and the second section 312 of the clearance compensation member 31. The first receiving groove 3115 is located at the first end surface 3111 of the first section 311 of the clearance compensation member 31 facing the second section 312, and the second receiving groove 3124 is located at the second end surface 3121 of the second section 312 of the clearance compensation member 31 facing the first section 311.

[0134] Along the axial direction of the compensation assembly 30, the first protrusion 3114 is protruded from the bottom of the first receiving groove 3115 and at least partially extends into the second receiving groove 3124. The second protrusion 3123 is protruded from the bottom of the second receiving groove 3124 and at least partially extends into the first receiving groove 3115.

[0135] It can be understood that the setting of the first receiving groove 3115 and the second receiving groove 3124 enables the first protrusion 3114, the second protrusion 3123 and the second elastic member 32 to be accommodated between the first section 311 and the second section 312, thereby ensuring that the second elastic member 32 can drive the first section 311 and the second section 312 to rotate relative to each other through the gap compensation member 31, while reducing the axial size of the compensation assembly 30, thereby facilitating the miniaturization of the transmission device 100 of the present application.

[0136] In another embodiment, if Figure 3 and Figure 4 As shown, along the axial direction of the compensation assembly 30, the second elastic member 32 is located between the second section 312 of the gap compensation member 31 and the end cover 42. Along the circumferential direction of the compensation assembly 30, the two ends of the second elastic member 32 respectively abut against the second section 312 of the gap compensation member 31 and the end cover 42.

[0137] After the second elastic member 32 is assembled, it is in a pre-compression state. When the elastic top block 33 pushes the first transmission member 21 to reduce the transmission gap between the first transmission member 21 and the second transmission member 22, the elastic force stored in the second elastic member 32 drives the second section 312 to rotate relative to the housing 10.

[0138] The first helical surface 3112 of the first section 311 and the second helical surface 3122 of the second section 312 abut against each other, and both the first helical surface 3112 and the second helical surface 3122 extend spirally around the axis of the compensation component 30. It can be understood that as the elastic top block 33 pushes the first transmission member 21, the elastic force stored in the elastic top block 33 decreases, and the abutting force of the elastic top block 33 on the first section 311 decreases. The second elastic member 32 can drive the second section 312 to rotate so that the first section 311 slides toward the elastic top block 33, thereby realizing the change of the axial length of the gap compensation member 31.

[0139] For details, please refer to Fig.11Another structural diagram of the first section 311 of the gap compensation member 31 provided in one embodiment of the present application is shown in FIG. Fig.12 FIG. 1 is another structural diagram of the second section 312 of the gap compensation member 31 provided in one embodiment of the present application. Figure 3 and Figure 4 .in, Fig.11 and Fig.12 They are Fig. 9 and Fig.10 The schematic diagram of the structure of the other side of the two sections of the gap compensation member 31 is shown.

[0140] like Figure 3 , Figure 4 , Fig.11 and Fig.12 As shown, along the axial direction of the compensation assembly 30 , the second section 312 of the clearance compensation member 31 includes a third protrusion 3125 , which extends toward the end cover 42 . The end cover 42 includes a fourth protrusion 422 , which extends toward the clearance compensation member 31 .

[0141] Along the circumference of the compensation assembly 30, the third protrusion 3125 and the fourth protrusion 422 are circumferentially spaced, and the two ends of the second elastic member 32 respectively abut against the third protrusion 3125 and the fourth protrusion 422. That is, the second elastic member 32 drives the second section 312 of the gap compensation member 31 to rotate relative to the housing 10 through the third protrusion 3125 and the fourth protrusion 422, and realizes the relative rotation of the first section 311 and the second section 312 by relying on the first end surface 3111 and the second end surface 3121.

[0142] In one embodiment, if Figure 3 , Figure 4 , Fig.11 and Fig.12 As shown, along the axial direction of the compensation assembly 30 , the end cover 42 includes a third receiving groove 423 . The third receiving groove 423 is located on the end surface of the end cover 42 facing the second section 312 .

[0143] Along the axial direction of the compensation assembly 30 , the third protrusion 3125 is protruded from the end surface of the second section 312 facing the end cover 42 and at least partially extends into the third receiving groove 423 . The fourth protrusion 422 is protruded from the bottom of the third receiving groove 423 .

[0144] It can be understood that the setting of the third receiving groove 423 enables the third receiving groove 423 to accommodate at least part of the third protrusion 3125, the fourth protrusion 422 and the second elastic member 32, thereby ensuring the effect of the second elastic member 32 on changing the axial dimension of the gap compensation member 31 while reducing the axial dimension of the compensation assembly 30, thereby facilitating the miniaturization of the transmission device 100 of the present application.

[0145] In another embodiment, the third receiving groove 423 may also be disposed on the second section 312 , and this application does not impose any particular limitation on this.

[0146] It should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0147] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" 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 application. 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.

[0148] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in the field, they can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application. Ordinary technicians in the field can understand that all or part of the processes of the above embodiments are implemented, and equivalent changes made according to the claims of this utility model still fall within the scope covered by this utility model.

Claims

1. A transmission device, characterized in that: include: case; A first transmission member and a second transmission member are accommodated in the housing, and the first transmission member is transmission-connected with the second transmission member; A compensation component, housed in the housing, and used to push the first transmission member toward the second transmission member to reduce the transmission gap; The shock absorbing component is located between the compensation component and the shell, and is used to reduce the vibration of the compensation component.

2. The transmission device according to claim 1, characterized in that: The shock absorbing component includes a first elastic member, two ends of which respectively abut against the compensation component and the shell to reduce vibration of the compensation component.

3. The transmission device according to claim 2, characterized in that: The shock absorbing assembly further comprises an end cover, the end cover is fixedly connected to the shell, and the first elastic member is supported between the compensation assembly and the end cover.

4. The transmission device according to claim 3, characterized in that: The end cover controls the compression amount of the first elastic member by adjusting the depth of the end cover screwed into the housing.

5. The transmission device according to claim 4, characterized in that: The end cover is threadedly connected to the housing.

6. The transmission device according to claim 5, characterized in that: The shell comprises a threaded hole, and the outer surface of the end cover is provided with threads, and the threads of the end cover are used to cooperate with the threaded hole to adjust the depth of the end cover screwed into the shell.

7. The transmission device according to claim 6, characterized in that: The transmission device further comprises a limiting member, and the limiting member is used to limit the position of the end cover relative to the housing.

8. The transmission device according to claim 7, characterized in that: A portion of the end cover is exposed from the shell, and the stopper is fixed to the end of the end cover exposed from the shell and abuts against the outer surface of the shell.

9. The transmission device according to claim 8, characterized in that: The limiting member is sleeved on the outer surface of the end cover exposed from the shell, and the limiting member is threadedly connected to the end cover.

10. The transmission device according to claim 6, characterized in that: A thread lead angle between the thread on the outer surface of the end cover and the threaded hole is less than or equal to a friction angle between the end cover and the shell.

11. The transmission device according to any one of claims 1 to 10, characterized in that: The compensation assembly includes a gap compensation member, the gap compensation member is abutted between the first transmission member and the shock absorbing assembly, and the gap compensation member is used to compensate for the gap between the first transmission member and the second transmission member.

12. The transmission device according to claim 11, characterized in that: The gap compensation member includes a first section and a second section, the first section is close to the first transmission member, the second section is arranged on the side of the first section away from the first transmission member, and is mutually abutted against the first section, and the rotation of the second section can drive the first section to rotate and make the first section move toward the first transmission member.

13. The transmission device according to claim 12, characterized in that: The first end surface of the first section toward the second section includes a first helical surface, which extends helically around the axis of the compensation component; the second end surface of the second section toward the first section includes a second helical surface, which extends helically around the axis of the compensation component.

14. The transmission device according to claim 13, characterized in that: The first end surface includes a plurality of the first helical surfaces, and the plurality of the first helical surfaces are evenly distributed along the circumference of the compensation component; the second end surface includes a plurality of the second helical surfaces, and the plurality of the second helical surfaces are evenly distributed along the circumference of the compensation component.

15. The transmission device according to claim 14, characterized in that: The heights of the first helical surfaces and the second helical surfaces extending helically around the axis of the compensation component are equal.

16. The transmission device according to claim 14, characterized in that: Along the circumference of the compensation component, the helix angle of each of the first helical surfaces and each of the second helical surfaces is less than or equal to the friction angle between the first segment and the second segment.

17. The transmission device according to claim 12, characterized in that: The compensation assembly further includes a second elastic member, and the second elastic member is used to drive the first section and the second section to rotate relative to each other; The first section and the second section are elastically connected via the second elastic member.

18. The transmission device according to claim 12, characterized in that: The compensation component includes an elastic top block close to the first transmission member, the elastic top block is located between the first transmission member and the first section of the gap compensation member, and the elastic top block is used to push the first transmission member toward the second transmission member.

19. The transmission device according to claim 18, characterized in that: The elastic top block includes a top block and a third elastic member, two ends of the third elastic member respectively abut against the top block and the first section, and the top block is connected to the first transmission member so that the first section can push the top block to slide through the third elastic member.

20. The transmission device according to claim 19, characterized in that At least one of the top block and the first section is provided with a groove, and the third elastic member is at least partially received in the groove.

21. The transmission device according to claim 20, characterized in that The first section can move toward the top block until it contacts the top block to limit the compression amount of the third elastic member.

22. A steering system, characterized in that: It comprises a steering input device, a steering actuator, and a transmission device as described in any one of claims 1 to 21, wherein the steering input device is transmission-connected to a first transmission member of the transmission device, and the steering actuator is transmission-connected to a second transmission member of the transmission device.

23. A vehicle, characterized in that: It comprises a steering system as claimed in claim 22 or a transmission device as claimed in any one of claims 1-21.

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