Steering gear, power-assisted steering system and vehicle

Abstract

The utility model discloses a steering gear, a power-assisted steering system and a vehicle, the steering gear comprises a transmission assembly, the transmission assembly comprises a worm gear and a worm, and the worm gear is in transmission fit with the worm; the clearance compensation assembly comprises an eccentric part and an elastic part, the eccentric part is connected with the worm and the elastic part, when a clearance is generated between the worm gear and the worm, the elastic part stores energy, the eccentric part can drive the worm to move in the first direction under the action of the elastic force of the elastic part, and the eccentric part can drive the worm to move in the second direction under the action of the elastic force of the elastic part. The first direction is the direction close to the worm gear. The clearance compensation assembly is reasonable in structural design and can be used for adjusting the clearance between the worm gear and the worm, in addition, due to the pretightening force of the elastic piece, the abrasion loss of the worm gear can be compensated in time, and a reverse clearance cannot be generated, so that the reliability of a system and the driving comfort can be improved, the abnormal sound problem is solved, and meanwhile the cost can be reduced; the overall structure size is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a steering gear, a power steering system and a vehicle. Background Art

[0002] In the related art, with the increase of the service time of the worm and worm gear in the steering mechanism, the teeth of the worm and worm gear will gradually wear, resulting in an increase in the clearance. The increase in the clearance will lead to a decrease in the transmission accuracy, affect the performance of the steering gear, and at the same time cause greater noise during the transmission of the worm and worm gear. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a steering gear for compensating the clearance of the worm and worm gear. The steering gear can improve the reliability of the system and the driving comfort, solve the abnormal noise problem, and at the same time can reduce the cost and reduce the overall structure size.

[0004] The utility model further provides a power steering system.

[0005] The utility model further provides a vehicle.

[0006] The steering gear according to the utility model is characterized by comprising a transmission assembly, wherein the transmission assembly comprises a worm wheel and a worm, and the worm wheel is in transmission cooperation with the worm; a clearance compensation assembly, wherein the clearance compensation assembly comprises an eccentric member and an elastic member, the eccentric member is respectively connected with the worm and the elastic member, and when a clearance is generated between the worm wheel and the worm, the elastic member stores energy, and the eccentric member can drive the worm to move in a first direction under the elastic force of the elastic member, and the first direction is the direction close to the worm wheel.

[0007] According to the steering gear of the utility model, the structure design of the clearance compensation assembly is reasonable, and can be used to adjust the clearance between the worm wheel and the worm. In addition, due to the existence of the pre-tightening force of the elastic member, the wear amount of the worm wheel can be compensated in time, and no reverse clearance will be generated, so that the reliability of the system and the driving comfort can be improved, the abnormal noise problem can be solved, and at the same time the cost can be reduced and the overall structure size can be reduced.

[0008] In some examples of the utility model, the clearance compensation assembly further comprises a support member, the eccentric member is sleeved on one end of the worm, the support member is sleeved on the eccentric member, the elastic member is sleeved between the eccentric member and the support member, and the elastic member is in abutting cooperation with the support member, and the eccentric member and the support member rotate relative to each other under the action of the elastic member, so that the eccentric member drives the worm to move in the first direction.

[0009] In some examples of the present utility model, the clearance compensation assembly further includes: a guide member sleeved on the worm, the guide member being adapted to define the movement of the eccentric member in a first direction or a second direction, the second direction being opposite to the first direction.

[0010] In some examples of the present utility model, the clearance compensation assembly further includes: a bearing sleeved on the worm, the eccentric member being sleeved on the bearing, and one end of the bearing abutting against the guide member.

[0011] In some examples of the present utility model, the clearance compensation assembly further includes: a housing, the eccentric member, the support member, the bearing and the elastic member are all arranged inside the housing, and the bearing is arranged inside the eccentric member.

[0012] In some examples of the present utility model, a guide hole is provided on the housing, the guide hole extends in the axial direction of the worm gear, and a part of the guide member is arranged in the guide hole.

[0013] In some examples of the present utility model, a limiting portion is provided at the axial end of the housing close to the worm, and the limiting portion is adapted to be clamped with a part of the guide member to limit the movement of the guide member in the first direction or the second direction.

[0014] In some examples of the present utility model, a retaining ring is provided at the end of the outer ring of the eccentric member, and the elastic member abuts against the retaining ring.

[0015] In some examples of the present utility model, a mounting hole is provided at the eccentric member near the retaining ring, and the mounting hole penetrates along the thickness direction of the eccentric member.

[0016] In some examples of the present utility model, the elastic member abuts against the bearing through the eccentric member.

[0017] In some examples of the present utility model, a first mounting protrusion is provided at one end of the elastic member, and the first mounting protrusion is adapted to pass through the mounting hole and abut against the bearing.

[0018] In some examples of the present utility model, a second mounting protrusion is provided at the other end of the elastic member, the second mounting protrusion extends in the axial direction of the eccentric member, and the second mounting protrusion abuts against the end of the support member.

[0019] In some examples of the present utility model, the clearance compensation assembly includes: a clamping member, the eccentric member, the support member and the elastic member are clamped in the housing through the clamping member, and the clamping member is arranged at one end of the housing away from the worm.

[0020] In some examples of the present utility model, the clamping member is configured as a snap spring member.

[0021] In some examples of the present utility model, the elastic member is wound around at least one turn in the radial direction; or the elastic member is wound around at least one turn in the axial direction.

[0022] In some examples of the present utility model, in the circumferential direction of the elastic member, the shape of the cross-section of the elastic member is one of a circle and a rectangle.

[0023] In some examples of the present utility model, the steering gear further includes: a housing, and both the transmission assembly and the clearance compensation assembly are disposed within the housing.

[0024] According to the power steering system of the present utility model, it includes: the steering gear described above.

[0025] According to the vehicle of the present utility model, it includes: the power steering system described above.

[0026] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 is a cross-sectional schematic view of a steering gear according to an embodiment of the present utility model;

[0029] Figure 2 is an exploded schematic view of the clearance compensation assembly;

[0030] Figure 3 is a first embodiment of the elastic member;

[0031] Figure 4 is a second embodiment of the elastic member;

[0032] Figure 5 is a third embodiment of the elastic member.

[0033] Reference numerals:

[0034] 1. Steering gear;

[0035] 10. Transmission assembly; 100. Worm gear; 101. Worm; 20. Clearance compensation assembly; 200. Eccentric part; 201. Support part; 202. Elastic part; 203. Retaining ring; 204. Mounting hole; 205. Mounting protrusion; 206. Bearing; 207. Housing; 208. Clamping part; 209. Guide part; 210. Guide hole; 211. Limiting part; 212. Second mounting protrusion; 30. Machine housing. Detailed implementation manners

[0036] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0037] Reference will be made below to Figure 1 and Figure 2 describe the steering gear 1 according to the embodiments of the present invention.

[0038] As Figure 1 shown, the steering gear 1 according to the embodiments of the present invention includes a transmission assembly 10 and a clearance compensation assembly 20. The transmission assembly 10 is an important component of the steering gear 1, and can mainly be used for decelerating, increasing torque, and changing the output direction of power. The clearance compensation assembly 20 is a component of the steering gear 1. The clearance compensation assembly 20 is generally cylindrical in shape and is mainly used for adjusting the clearance between the worm gear 100 and the worm 101, and compensating for the mating clearance generated by the wear of the worm gear 100 and the worm 101.

[0039] As Figure 1 and Figure 2 shown, the transmission assembly 10 includes a worm gear 100 and a worm 101. The worm gear 100 is in transmission cooperation with the worm 101. The clearance compensation assembly 20 includes an eccentric part 200 and an elastic part 202. The eccentric part 200 is respectively connected to the worm 101 and the elastic part 202. When a clearance is generated between the worm gear 100 and the worm 101, the elastic part 202 stores energy. The eccentric part 200 can drive the worm 101 to move in a first direction under the elastic force of the elastic part 202. The first direction is the direction close to the worm gear 100.

[0040] The worm wheel 100 and the worm 101 are components of the transmission assembly 10. The transmission cooperation between the worm wheel 100 and the worm 101 can reduce speed, increase torque and change the output direction of power. The eccentric member 200 and the elastic member 202 are important components of the clearance compensation assembly 20. The eccentric member 200 is respectively connected to the worm 101 and the elastic member 202. When a clearance is generated between the worm wheel 100 and the worm 101, the elastic member 202 stores energy. Under the elastic force of the elastic member 202, the eccentric member 200 can drive the worm 101 to move in the first direction, and the first direction is the direction close to the worm wheel 100. That is to say, one end of the eccentric member 200 is connected to the worm 101, and the other end is connected to the elastic member 202. The elastic member 202 can store energy when a clearance is generated between the worm wheel 100 and the worm 101. Under the elastic force of the elastic member 202, the eccentric member 200 drives the worm 101 to move in the first direction, that is, the eccentric member 200 drives the worm 101 to move in the direction close to the worm wheel 100. Among them, the elastic member 202 can be a torsion spring, and the first direction is the direction close to the worm wheel 100.

[0041] Therefore, the structure of the clearance compensation assembly 20 is reasonably designed and can be used to adjust the clearance between the worm wheel 100 and the worm 101. In addition, due to the existence of the pre-tightening force of the elastic member 202, the wear amount of the worm wheel 100 can be compensated in time, and no reverse clearance will be generated, thereby improving the reliability of the system and the comfort of driving, solving the abnormal noise problem, and at the same time reducing costs and reducing the overall structural size.

[0042] Specifically, such as Figure 2As shown, the clearance compensation assembly 20 further includes: a support member 201, an eccentric member 200 is sleeved on one end of the worm 101, the support member 201 is sleeved on the eccentric member 200, an elastic member 202 is sleeved between the eccentric member 200 and the support member 201, and the elastic member 202 is in abutting fit with the support member 201. The eccentric member 200 and the support member 201 rotate relative to each other under the action of the elastic member 202, so that the eccentric member 200 drives the worm 101 to move in the first direction. It should be noted that the support member 201 is a component of the clearance compensation assembly 20. The eccentric member 200 is sleeved on one end of the worm 101, and the support member 201 is sleeved on the eccentric member 200. When a clearance is generated due to wear between the worm gear 100 and the worm 101, the worm 101 drives the eccentric member 200 to rotate. Since the elastic member 202 is sleeved between the eccentric member 200 and the support member 201, and the elastic member 202 is in abutting fit with the support member 201, the eccentric member 200 and the support member 201 will rotate in the opposite direction under the action of the elastic member 202. In this way, the eccentric member 200 will move eccentrically, thereby driving the worm 101 to move in the first direction. In this way, the wear amount can be compensated in time by the elastic member 202, the eccentric member 200 and the support member 201. In addition, the eccentric member 200 and the support member 201 can achieve reverse self-locking. At this time, a very small acting force of the elastic member 202 can enable the clearance compensation assembly 20 to compensate the wear amount of the worm gear 100 in time. Among them, the deflection directions of the eccentric member 200 and the support member 201 are different.

[0043] Of course, as Figure 2 shown, the clearance compensation assembly 20 further includes: a guide member 209, the guide member 209 is sleeved on the worm 101, and the guide member 209 is adapted to limit the movement of the eccentric member 200 in the first direction or the second direction, and the second direction is opposite to the first direction. The guide member 209 is a component of the clearance compensation assembly 20. The guide member 209 is sleeved on the worm 101, and the guide member 209 is adapted to limit the movement of the eccentric member 200 in the first direction or the second direction, driving the worm 101 to move in the axial direction of the worm gear 100. In this way, when the eccentric member 200 rotates under the action of the elastic member 202, the eccentric member 200 can drive the guide member 209 to move. At this time, the guide member 209 drives the worm 101 to move in the first direction, that is, in the axial direction of the worm gear 100, and the clearance between the worm gear 100 and the worm 101 can be compensated, and the wear amount between the worm gear 100 and the worm 101 can be compensated. Among them, the second direction is opposite to the first direction.

[0044] Furthermore, as Figure 2As shown, the clearance compensation assembly 20 includes: a bearing 206, the bearing 206 is sleeved on the worm 101, an eccentric member 200 is sleeved on the bearing 206, and one end of the bearing 206 abuts against the guide member 209. The bearing 206 mainly plays a supporting role. By sleeving the bearing 206 on the worm 101, it is convenient for the worm 101 to rotate. By sleeving the eccentric member 200 on the bearing 206 and one end of the bearing 206 abutting against the guide member 209, when the eccentric member 200 rotates under the action of the elastic member 202, the eccentric member 200 can drive the bearing 206 to move. At this time, the bearing 206 drives the worm 101 to move in the first direction, that is, in the axial direction of the worm wheel 100, so as to compensate for the clearance between the worm wheel 100 and the worm 101 and compensate for the wear amount between the worm wheel 100 and the worm 101.

[0045] In addition, as Figure 2 shown, the clearance compensation assembly 20 includes: a housing 207, the eccentric member 200, the support member 201, the bearing 206 and the elastic member 202 are all arranged in the housing 207, and the bearing 206 is arranged in the eccentric member 200. The housing 207 is mainly used to install components, ensure the relative position accuracy and protect the internal components. The eccentric member 200, the support member 201, the bearing 206 and the elastic member 202 are all arranged in the housing 207, which can make the connection between the eccentric member 200, the support member 201, the elastic member 202 and the housing 207 firm and reliable. In addition, it can ensure the integrity of the eccentric member 200, the support member 201 and the elastic member 202. The bearing 206 is arranged in the eccentric member 200, which can make the connection between the bearing 206 and the eccentric member 200 firm and reliable. In addition, it can ensure the integrity of the bearing 206 and the eccentric member 200.

[0046] In addition to this, as Figure 2 shown, a guide hole 210 is provided on the housing 207, the guide hole 210 extends in the axial direction of the worm wheel 100, and a part of the guide member 209 is arranged in the guide hole 210. The guide hole 210 mainly plays a guiding and positioning role. The guide hole 210 extends in the axial direction of the worm wheel 100, and a part of the guide member 209 is arranged in the guide hole 210. At this time, the guide hole 210 can limit the moving direction of the guide member 209, ensure that the guide member 209 can extend and move in the axial direction of the worm wheel 100, so as to ensure that the guide member 209 drives the worm 101 to move in the axial direction of the worm wheel 100.

[0047] It should be noted that, as Figure 2As shown, a limiting portion 211 is provided at an axial end of the housing 207 close to the worm 100. The limiting portion 211 is adapted to snap-connect to a part of the guide member 209 to limit the movement of the guide member 209 in the first direction or the second direction. The limiting portion 211 mainly functions to limit. The limiting portion 211 is provided at the axial end of the housing 207 close to the worm 100. The limiting portion 211 is adapted to snap-connect to a part of the guide member 209 to limit the movement of the guide member 209 in the first direction or the second direction. A part of the guide member 209 is snap-connected within the limiting portion 211, so that the limiting portion 211 can limit the movement of the guide member 209 in the first direction or the second direction.

[0048] Specifically, as Figure 2 shown, a retaining ring 203 is provided at the outer ring end of the eccentric member 200, and the elastic member 202 abuts against the retaining ring 203. The retaining ring 203 mainly functions for limiting. The elastic member 202 abuts against the retaining ring 203, so that the displacement of the elastic member 202 within the eccentric member 200 can be avoided, thereby ensuring that the elastic member 202 is disposed between the eccentric member 200 and the support member 201. When a gap is generated due to wear between the worm gear 100 and the worm 101, the eccentric member 200 and the support member 201 can reverse under the action of the elastic member 202, and the eccentric member 200 can drive the worm 101 to move in the axial direction of the worm gear 100.

[0049] Among them, as Figure 2 shown, a mounting hole 204 is provided at the eccentric member 200 close to the retaining ring 203, and the mounting hole 204 penetrates along the thickness direction of the eccentric member 200. The mounting hole 204 is for mounting. The mounting hole is provided at the eccentric member 200 close to the retaining ring 203. The mounting hole 204 is provided on the eccentric member 200, and the mounting hole 204 is set to penetrate along the thickness direction of the eccentric member 200.

[0050] It should be noted that, as Figure 2 shown, the elastic member 202 abuts against the bearing 206 through the eccentric member 200. The elastic member 202 abuts against the eccentric member 200 through the bearing 206, so that the cooperation between the elastic member 202 and the eccentric member 200 can be more stable. In addition, when a gap is generated between the worm gear 100 and the worm 101, the elastic member 202 stores energy, which can ensure that the eccentric member 200 can drive the worm 101 to move in the first direction under the elastic force of the elastic member 202.

[0051] Specifically, as Figure 2As shown, a first mounting protrusion 205 is provided at one end of the elastic member 202. The first mounting protrusion 205 is adapted to pass through the mounting hole 204 and abut against the bearing 206. The first mounting protrusion 205 is for installation. The eccentric member 200 is provided with a mounting hole 204, and a first mounting protrusion 205 is provided at one end of the elastic member 202. The first mounting protrusion 205 is adapted to pass through the mounting hole 204 and abut against the bearing 206. In this way, the elastic member 202 can be connected to the eccentric member 200 through the mounting fit between the first mounting protrusion 205 and the mounting hole 204. At this time, the cooperation between the elastic member 202 and the eccentric member 200 can be made more stable.

[0052] In addition, as Figure 2 shown, a second mounting protrusion 212 is provided at the other end of the elastic member 202. The second mounting protrusion 212 extends along the axial direction of the eccentric member 200, and the second mounting protrusion 212 abuts against the end of the support member 201. The second mounting protrusion 212 is for installation. The second mounting protrusion 212 extends along the axial direction of the eccentric member 200, and the second mounting protrusion 212 abuts against the end of the support member 201. In this way, the elastic member 202 can be connected to the support member 201 through the second mounting protrusion 212. At this time, the cooperation between the elastic member 202 and the support member 201 can be made more stable.

[0053] It should be noted that, as Figure 2 shown, the clearance compensation assembly 20 includes: a clamping member 208. The eccentric member 200, the support member 201 and the elastic member 202 are clamped in the housing through the clamping member 208. The clamping member 208 is arranged at one end of the housing 207 away from the worm 101. The clamping member 208 mainly plays a role of clamping and fixedly connecting. The clamping connection method is simple and convenient. The eccentric member 200, the support member 201 and the elastic member 202 are clamped in the housing through the clamping member 208. In this way, the connection between the eccentric member 200, the support member 201, the elastic member 202 and the housing 207 can be firm and reliable. In addition, the integrity of the eccentric member 200, the support member 201 and the elastic member 202 can be ensured. The clamping member 208 can be arranged at one end of the housing 207 away from the worm 101. At this time, it meets the setting requirements of the clamping member.

[0054] Specifically, as Figure 2 shown, the clamping member 208 is configured as a snap ring member. In this way, objects can be fixed more effectively, the resistance can be reduced, vibrations and impacts can be absorbed, and the reliability of the equipment can be improved, which better meets the actual working conditions of the clamping member 208.

[0055] In addition, as Figures 3 - 5 shown, the elastic member 202 is wound around at least one turn in the radial direction, or the elastic member 202 is wound around at least one turn in the axial direction. At this time, the elastic member 202 stores a pre-tightening force, and during the wear process of the worm wheel 100, it drives the eccentric member 200 and the support member 201 to move, and drives the sliding member 209 to compensate for the wear amount.

[0056] It should be noted that, as Figures 3 - 5 shown, in the circumferential direction of the elastic member 202, the cross-sectional shape of the elastic member 202 is one of a circle and a rectangle. That is to say, in the circumferential direction of the elastic member 202, the cross-sectional shape of the elastic member 202 can be a circle or a rectangle. When the cross-sectional shape of the elastic member 202 is different, the elastic modulus of the elastic member 202 is also different, and the elastic curve of the elastic member 202 is also different. At this time, the gap compensation assembly 20 can be applied to scenarios with different compensation force requirements, so as to expand the application range of the gap compensation assembly 20.

[0057] Optionally, as Figure 1 shown, the steering gear 1 further includes: a housing 30. An installation space is provided inside the housing 30, and the transmission assembly 10 and the gap compensation assembly 20 are both arranged in the installation space. The housing 30 is a main component of the steering gear 1, which can be mainly used to install components, ensure the relative position accuracy of each transmission shaft, and protect the internal components. An installation space is provided inside the housing 30, and the transmission assembly 10 and the gap compensation assembly 20 are both arranged in the installation space. At this time, the space of the housing 30 can be reasonably utilized to reduce the space occupation, so as to solve the space layout problem of the steering gear 1.

[0058] The power steering system according to an embodiment of the present invention includes: the steering gear 1 described in the above embodiment.

[0059] The vehicle according to an embodiment of the present invention includes: the power steering system described in the above embodiment.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0061] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features. In the description of the present utility model, the meaning of "a plurality of" is two or more. In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. In the description of the present utility model, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0062] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0063] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A steering gear (1), characterized in that: include: A transmission assembly (10), the transmission assembly (10) comprising: a worm wheel (100) and a worm (101), the worm wheel (100) and the worm (101) being in transmission cooperation; A clearance compensation component (20), the clearance compensation component (20) comprising: an eccentric piece (200) and an elastic piece (202), the eccentric piece (200) being connected to the worm (101) and the elastic piece (202) respectively, the elastic piece (202) storing energy when a clearance is generated between the worm wheel (100) and the worm (101), and the eccentric piece (200) being able to drive the worm (101) to move in a first direction under the elastic force of the elastic piece (202), the first direction being a direction approaching the worm wheel (100).

2. The steering gear according to claim 1, characterized in that: The clearance compensation assembly (20) further comprises: a support member (201), the eccentric member (200) being sleeved on one end of the worm (101), the support member (201) being sleeved on the eccentric member (200), the elastic member (202) being sleeved between the eccentric member (200) and the support member (201), and the elastic member (202) being in abutment with the support member (201), the eccentric member (200) and the support member (201) being relatively rotated under the action of the elastic member (202), so that the eccentric member (200) drives the worm (101) to move in the first direction.

3. The steering gear (1) according to claim 2, characterized in that: The clearance compensation assembly (20) further comprises: a guide member (209), wherein the guide member (209) is sleeved on the worm (101), and the guide member (209) is suitable for limiting the eccentric member (200) to move in the first direction or the second direction, wherein the second direction is opposite to the first direction.

4. The steering gear (1) according to claim 3, characterized in that: The clearance compensation component (20) comprises: a bearing (206), the bearing (206) being sleeved on the worm (101), the eccentric member (200) being sleeved on the bearing (206), and one end of the bearing (206) being in contact with the guide member (209).

5. The steering gear (1) according to claim 4, characterized in that: The clearance compensation component (20) comprises a housing (207), the eccentric member (200), the support member (201), the bearing (206) and the elastic member (202) are all arranged in the housing (207), and the bearing (206) is arranged in the eccentric member (200).

6. The steering gear (1) according to claim 5, characterized in that A guide hole (210) is provided on the housing (207), the guide hole (210) extending in the axial direction of the worm wheel (100), and the guide member (209) is partially provided in the guide hole (210).

7. The steering gear (1) according to claim 6, characterized in that The housing (207) is provided with a limiting portion (211) at an axial end portion close to the worm (101), and the limiting portion (211) is suitable for clamping a portion of the guide member (209) to limit the movement of the guide member (209) along the first direction or the second direction.

8. The steering gear (1) according to claim 2, characterized in that: A retaining ring (203) is provided at the outer ring end of the eccentric member (200), and the elastic member (202) abuts against the retaining ring (203).

9. The steering gear (1) according to claim 8, characterized in that The eccentric piece (200) is provided with a mounting hole (204) near the retaining ring (203), and the mounting hole (204) penetrates along the thickness direction of the eccentric piece (200).

10. The steering gear (1) according to claim 9, characterized in that The clearance compensation component (20) comprises a bearing (206), and the elastic member (202) abuts against the bearing (206) via the eccentric member (200).

11. The steering gear (1) according to claim 10, characterized in that A first mounting protrusion (205) is provided at one end of the elastic member (202), and the first mounting protrusion (205) is suitable for passing through the mounting hole (204) to abut against the bearing (206).

12. The steering gear (1) according to claim 2, characterized in that A second mounting protrusion (212) is provided at the other end of the elastic member (202), the second mounting protrusion (212) extending axially along the eccentric member (200), and the second mounting protrusion (212) abuts against the end of the support member (201).

13. The steering gear (1) according to claim 2, characterized in that The clearance compensation component (20) comprises: a housing (207); the clearance compensation component (20) comprises: a clamping piece (208); the eccentric piece (200), the support piece (201) and the elastic piece (202) are clamped in the housing via the clamping piece (208); the clamping piece (208) is arranged at one end of the housing (207) away from the worm (101).

14. The steering gear (1) according to claim 13, characterized in that The clamping member (208) is configured as a clamping spring member.

15. The steering gear (1) according to claim 1, characterized in that The elastic member (202) is wound at least once in the radial direction; or; The elastic member (202) is wound at least once in the axial direction.

16. The steering gear (1) according to claim 1, characterized in that In the circumferential direction of the elastic member (202), the cross-section of the elastic member (202) is in the shape of one of a circle and a rectangle.

17. The steering gear (1) according to claim 1, characterized in that Also includes: A casing (30), wherein the transmission assembly (10) and the clearance compensation assembly (20) are both arranged in the casing (30).

18. A power steering system, characterized in that: include: The steering gear (1) according to any one of claims 1 to 17.

19. A vehicle, characterized in that: include: The power steering system as claimed in claim 18.

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