Steering shaft, steering system with same and vehicle
By setting a limiting protrusion and a limiting groove on the steering shaft, the problem of vehicle steering function failure caused by relative rotation of the steering shaft is solved, thereby improving safety and cost-effectiveness.
Patent Information
- Application Number
- CN202520182070.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-05
AI Technical Summary
The steering shaft of existing vehicles is prone to relative rotation during steering, which can cause the vehicle's steering function to fail and affect safety.
Design a steering shaft by setting a limiting protrusion and a limiting groove on a first shaft and a second shaft. The limiting protrusion and the limiting groove cooperate to limit rotation, and a buffer is set in the mating hole to buffer vibration force.
It effectively prevents relative rotation of the steering shaft, ensures vehicle steering function, improves safety, reduces the use of parts, lowers production costs and vibration, and enhances the driving experience.
Smart Images
Figure CN223864945U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to a steering shaft, a steering system having the same, and a vehicle. Background Technology
[0002] In existing vehicles, the wheels are connected to the steering wheel via a steering shaft. However, during steering, the two ends of the steering shaft are prone to relative rotation, which can cause the vehicle's steering function to fail and thus compromise the vehicle's safety. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, this invention provides a steering shaft that ensures vehicle safety.
[0004] This utility model also proposes a steering system having the above-mentioned steering shaft.
[0005] This utility model also proposes a vehicle having the above-mentioned steering system.
[0006] A steering shaft according to an embodiment of the present invention includes: a first shaft adapted to connect to a vehicle's steering wheel; a second shaft adapted to connect to a vehicle's wheel, one of the first shaft and the second shaft having a mating hole, one end of the other of the first shaft and the second shaft being inserted into the mating hole; a limiting protrusion and a limiting groove, one of the limiting protrusion and the limiting groove being formed on the peripheral wall of the mating hole, and the other being formed on the outer peripheral surface of the other of the first shaft and the second shaft, the limiting protrusion and the limiting groove engaging to limit the rotation of the first shaft relative to the second shaft; and a buffer member, the buffer member being annular, the buffer member being disposed within the mating hole and sleeved on one end of the other of the first shaft and the second shaft.
[0007] According to the steering shaft of this utility model, a limiting protrusion and a limiting groove are provided. The limiting protrusion and the limiting groove cooperate to effectively prevent the first shaft and the second shaft from rotating relative to each other, thereby preventing the vehicle from losing its steering function and ensuring the safety of the vehicle. At the same time, it can reduce the use of parts and reduce production costs.
[0008] According to some embodiments of the present invention, the limiting protrusion is formed on the outer peripheral surface of the end of the first shaft, and the mating hole is formed on the second shaft and passes through the end face of the second shaft facing the first shaft in the axial direction of the second shaft.
[0009] According to some embodiments of the present invention, there are multiple limiting protrusions, which are arranged at intervals along the circumference of the first axis. There are also multiple limiting grooves, which correspond one-to-one with each limiting protrusion.
[0010] According to some optional embodiments of the present invention, the number of the limiting protrusions is in the range of 4 to 12.
[0011] According to some embodiments of the present invention, the second shaft includes a main body segment and a connecting segment, the connecting segment being connected to one end of the main body segment facing the first shaft, the outer diameter of the connecting segment being larger than the outer diameter of the main body segment, and the mating hole being formed in the connecting segment.
[0012] According to some embodiments of the present invention, in the direction where the opening of the limiting groove faces the bottom wall of the limiting groove, the width of the limiting groove gradually decreases along the circumferential direction of the second axis.
[0013] According to some optional embodiments of the present invention, the limiting groove is connected by an arc on the two opposite side walls of the second axis in the circumferential direction.
[0014] According to some embodiments of the present invention, the two adjacent sidewalls of the two adjacent limiting grooves are connected by an arc.
[0015] The steering system according to a second aspect of the present invention includes a steering shaft according to a first aspect of the present invention.
[0016] According to the steering system of this utility model, by setting the steering shaft of the first aspect embodiment above, and setting the limiting protrusion and the limiting groove, the limiting protrusion and the limiting groove can effectively prevent the relative rotation of the first shaft and the second shaft, thereby preventing the vehicle from losing its steering function and ensuring the safety of the vehicle. At the same time, it can reduce the use of parts and reduce production costs.
[0017] The vehicle according to a third aspect of the present invention includes a steering system according to a second aspect of the present invention.
[0018] According to the present invention, the vehicle is equipped with a steering system according to the second aspect of the present invention. The steering system is provided with the steering shaft of the first aspect, and a limiting protrusion and a limiting groove are provided. The limiting protrusion and the limiting groove cooperate to effectively prevent the first shaft and the second shaft from rotating relative to each other, thereby preventing the vehicle from losing its steering function and ensuring the safety of the vehicle. At the same time, it can reduce the use of parts and reduce production costs.
[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of an angle of the steering shaft according to an embodiment of the present utility model;
[0021] Figure 2 yes Figure 1 A schematic diagram of another angle of the steering axis shown.
[0022] Figure label:
[0023] 100. Steering shaft;
[0024] 10. First axis; 11. Limiting protrusion;
[0025] 20. Second axis; 21. Limiting groove;
[0026] 201. Main body section; 202. Connecting section;
[0027] 30. Buffer components;
[0028] 200. Outer fork;
[0029] 1000. Steering system. Detailed Implementation
[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0031] The following is a reference appendix. Figure 1-2 Description of a steering shaft 100 according to an embodiment of the present utility model.
[0032] Reference Figure 1 and Figure 2 The steering shaft 100 according to an embodiment of the present utility model includes: a first shaft 10, a second shaft 20, and a buffer member 30.
[0033] Specifically, the first shaft 10 is adapted to connect to the steering wheel of a vehicle; the second shaft 20 is adapted to connect to the wheels of a vehicle. One of the first shaft 10 and the second shaft 20 is provided with a mating hole, and one end of the other shaft 10 and the second shaft 20 is inserted into the mating hole. That is, either the first shaft 10 is provided with a mating hole and one end of the second shaft 20 is inserted into the mating hole, or the second shaft 20 is provided with a mating hole and one end of the first shaft 10 is inserted into the mating hole. One of the limiting protrusion 11 and the limiting groove 21 is formed on the peripheral wall of the mating hole, and the other is formed on the first shaft 10 and the second shaft 20. The other outer peripheral surface, that is, the limiting protrusion 11 is formed on the peripheral wall of the mating hole, and the limiting groove 21 is formed on the outer peripheral surface of one of the first shaft 10 or the second shaft 20, or the limiting protrusion 11 is formed on the peripheral wall of the mating hole, and the limiting groove 21 is formed on the outer peripheral surface of one of the first shaft 10 or the second shaft 20. The limiting protrusion 11 and the limiting groove 21 are matched to limit the rotation of the first shaft 10 relative to the second shaft 20; the buffer 30 is annular, and the buffer 30 is disposed in the mating hole and sleeved on one end of the other of the first shaft 10 and the second shaft 20.
[0034] For example, such as Figure 1 and Figure 2 As shown, the first shaft 10 is located above the second shaft 20. A limiting protrusion 11 is formed on the outer circumferential surface of the lower end of the first shaft 10. A mating hole is formed at the upper end of the second shaft 20, and a limiting groove 21 is formed inside the mating hole. The lower end of the first shaft 10 is inserted into the mating hole at the upper end of the second shaft 20 so that the limiting protrusion 11 and the limiting groove 21 are engaged. The buffer member 30 is formed into a ring along the circumference of the mating hole, and the buffer member 30 connects the first shaft 10 and the second shaft 20. Preferably, the buffer member 30 is made of flexible vulcanized rubber, which can ensure the connection strength between the buffer member 30 and the first shaft 10 and the second shaft 20, and effectively prevent the buffer member 30 from separating from the first shaft 10 and the second shaft 20.
[0035] The steering shaft 100 of this utility model is provided with a limiting protrusion 11 and a limiting groove 21. When the buffer 30 in the mating hole fails, the limiting protrusion 11 and the limiting groove 21 can effectively prevent the first shaft 10 and the second shaft 20 from rotating relative to each other. This can prevent the first shaft 10 from rotating relative to the second shaft 20 and causing the vehicle to lose its steering function, thereby ensuring the safety of the vehicle. Compared with the prior art, which uses a pin between the first shaft 10 and the second shaft 20, the steering shaft 100 of this application can reduce the use of parts, reduce production costs, and reduce structural complexity, making it easier to manufacture the steering shaft 100. At the same time, the limiting protrusion 11 and the limiting groove 21 can reduce the shear force borne by the buffer 30, thereby preventing the buffer 30 from being damaged by shear, thus ensuring the service life of the buffer 30, and also reducing the hardness requirement of the buffer 30, making it easier to process the buffer 30.
[0036] In addition, the vibration force transmitted from the wheel to the steering wheel through the steering shaft 100 is buffered by the buffer 30 before being transmitted to the steering wheel, thereby reducing the vibration on the steering wheel and ensuring the driving experience of the vehicle.
[0037] According to the embodiment of the present invention, the steering shaft 100 is provided with a limiting protrusion 11 and a limiting groove 21. The limiting protrusion 11 and the limiting groove 21 cooperate to effectively prevent the first shaft 10 and the second shaft 20 from rotating relative to each other, thereby preventing the vehicle from losing its steering function and ensuring the safety of the vehicle. At the same time, it can reduce the use of parts and reduce production costs.
[0038] According to some embodiments of this utility model, refer to Figure 1 and Figure 2 A limiting protrusion 11 is formed on the outer peripheral surface of the end of the first shaft 10, and a mating hole is formed on the second shaft 20, extending axially through the end face of the second shaft 20 towards the first shaft 10. Therefore, the limiting protrusion 11 and the mating hole are positioned appropriately, allowing the limiting protrusion 11 to engage with the limiting groove 21 when the first shaft 10 and the second shaft 20 are inserted into each other.
[0039] For example, such as Figure 1 and Figure 2 As shown, a limiting protrusion 11 is formed on the outer peripheral surface of the lower end of the first shaft 10, a mating hole penetrates the upper end face of the second shaft 20, and the mating hole is recessed downward along the radial direction of the second shaft 20 from the upper end face of the second shaft 20, and a limiting groove 21 is formed on the peripheral wall of the mating hole.
[0040] According to some embodiments of this utility model, refer to Figure 1 and Figure 2 There are multiple limiting protrusions 11, that is, there can be two, three or four or more limiting protrusions 11. The multiple limiting protrusions 11 are arranged at intervals along the circumference of the first axis 10. There are multiple limiting grooves 21, that is, there can be two, three or four or more limiting grooves 21. The multiple limiting grooves 21 correspond one-to-one with the limiting protrusions 11.
[0041] In this way, the multiple limiting protrusions 11 cooperate with the corresponding multiple limiting grooves 21, thereby forming multiple limiting positions between the first shaft 10 and the second shaft 20, which can effectively prevent the first shaft 10 from rotating relative to the second shaft 20.
[0042] According to some optional embodiments of the present invention, refer to Figure 1 and Figure 2 The number of limiting protrusions 11 is in the range of 4 to 12. This effectively prevents the first shaft 10 from rotating relative to the second shaft 20.
[0043] For example, such as Figure 1 and Figure 2 As shown, the number of limiting protrusions 11 can be 4, 5, 6, 7, 8, 9, 10, 11 or 12.
[0044] According to some embodiments of this utility model, refer to Figure 1 and Figure 2 The second shaft 20 includes a main body segment 201 and a connecting segment 202, the connecting segment 202 being connected to the end of the main body segment 201 facing the first shaft 10 (e.g., Figure 1 The upper end of the main body segment 201 shown), the outer diameter of the connecting segment 202 is larger than the outer diameter of the main body segment 201, and the mating hole is formed in the connecting segment 202. Therefore, by setting the connecting segment 202, the arrangement of the mating hole can be facilitated, thereby avoiding the inability to properly arrange the mating hole due to insufficient radial internal space of the first shaft 10.
[0045] According to some embodiments of this utility model, refer to Figure 1 and Figure 2 In the direction from the opening of the limiting groove 21 towards the bottom wall of the limiting groove 21, the width of the limiting groove 21 gradually decreases along the circumferential direction of the second axis 20. Therefore, this structural form of the limiting groove 21 is rationally arranged, effectively preventing the limiting protrusion 11 from detaching from the limiting groove 21. For example, as... Figure 1 and Figure 2 As shown, the limiting groove 21 is V-shaped.
[0046] According to some optional embodiments of the present invention, refer to Figure 1 and Figure 2 The limiting groove 21 is connected to the opposite side walls of the second shaft 20 in the circumferential direction by an arc. This arc transition effectively reduces stress concentration on the bottom wall of the limiting groove 21, better dispersing stress and improving the durability and service life of the second shaft 20. Simultaneously, it ensures smoother assembly of the limiting protrusion 11 within the limiting groove 21, reducing assembly obstacles and improving assembly efficiency while also lowering the possibility of damage to parts during assembly.
[0047] According to some embodiments of this utility model, refer to Figure 1 and Figure 2 The two adjacent sidewalls of the two adjacent limiting grooves 21 are connected by an arc. Therefore, the arc transition can effectively reduce stress concentration at the connection position of the adjacent limiting grooves 21, better disperse stress, improve the durability and service life of the second shaft 20, and at the same time, ensure smoother assembly of the limiting protrusion 11 in the limiting groove 21, reduce assembly obstacles, improve assembly efficiency, and reduce the possibility of damage to parts during assembly.
[0048] According to a second aspect embodiment of the present invention, a steering system 1000 is described, with reference to... Figure 1 and Figure 2 This includes the steering shaft 100 of the first aspect of this embodiment.
[0049] For example, such as Figure 1 As shown, the upper end of the steering shaft 100 is connected to the steering wheel via the upper outer fork 200, and the lower end of the steering shaft 100 is connected to the wheel via the lower outer fork 200.
[0050] According to the embodiment of the present invention, the steering system 1000, by setting the steering shaft 100 of the first aspect embodiment above, provides a limiting protrusion 11 and a limiting groove 21. The limiting protrusion 11 and the limiting groove 21 cooperate to effectively prevent the first shaft 10 and the second shaft 20 from rotating relative to each other, thereby preventing the vehicle from losing its steering function and ensuring the safety of the vehicle. At the same time, it can reduce the use of parts and reduce production costs.
[0051] The vehicle according to the third aspect embodiment of the present utility model, referring to Figure 1 and Figure 2 This includes the steering system 1000 of the second aspect of this embodiment.
[0052] According to the vehicle of the present invention, by setting the steering system 1000 of the first aspect embodiment above, a steering shaft 100 is set on the steering system 1000, and a limiting protrusion 11 and a limiting groove 21 are set. The limiting protrusion 11 and the limiting groove 21 cooperate to effectively prevent the first shaft 10 and the second shaft 20 from rotating relative to each other, thereby avoiding the loss of steering function of the vehicle and ensuring the safety of the vehicle. At the same time, it can reduce the use of parts and reduce production costs.
[0053] In the description of this utility model, it should be understood that 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., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0057] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A steering shaft (100), characterized in that, include: A first shaft (10) is adapted to connect to the steering wheel of a vehicle; A second axle (20) adapted to connect to a vehicle wheel, wherein one of the first axle (10) and the second axle (20) is provided with a mating hole, and one end of the other of the first axle (10) and the second axle (20) is inserted into the mating hole. A limiting protrusion (11) and a limiting groove (21) are provided, one of which is formed on the peripheral wall of the mating hole, and the other is formed on the outer peripheral surface of the other of the first shaft (10) and the second shaft (20). The limiting protrusion (11) and the limiting groove (21) are engaged to limit the rotation of the first shaft (10) relative to the second shaft (20). A buffer (30) is annular and is disposed in the mating hole and sleeved on one end of the other of the first shaft (10) and the second shaft (20).
2. The steering shaft (100) according to claim 1, characterized in that, The limiting protrusion (11) is formed on the outer peripheral surface of the end of the first shaft (10), and the mating hole is formed on the second shaft (20) and passes through the end face of the second shaft (20) facing the first shaft (10) in the axial direction of the second shaft (20).
3. The steering shaft (100) according to claim 1, characterized in that, The number of the limiting protrusions (11) is multiple, and the multiple limiting protrusions (11) are arranged at intervals along the circumference of the first axis (10). The number of the limiting grooves (21) is multiple, and the multiple limiting grooves (21) correspond one-to-one with the limiting protrusions (11).
4. The steering shaft (100) according to claim 3, characterized in that, The number of the limiting protrusions (11) is in the range of 4 to 12.
5. The steering shaft (100) according to claim 1, characterized in that, The second shaft (20) includes a main body section (201) and a connecting section (202). The connecting section (202) is connected to one end of the main body section (201) facing the first shaft (10). The outer diameter of the connecting section (202) is larger than the outer diameter of the main body section (201). The mating hole is formed in the connecting section (202).
6. The steering shaft (100) according to claim 1, characterized in that, In the direction of the opening of the limiting groove (21) toward the bottom wall of the limiting groove (21), the width of the limiting groove (21) gradually decreases along the circumferential direction of the second axis (20).
7. The steering shaft (100) according to claim 6, characterized in that, The limiting groove (21) is connected by an arc on the two opposite side walls of the second shaft (20) in the circumferential direction.
8. The steering shaft (100) according to claim 6, characterized in that, The two adjacent sidewalls of the two adjacent limiting grooves (21) are connected by an arc.
9. A steering system (1000), characterized in that, Includes the steering shaft (100) as described in any one of claims 1-8.
10. A vehicle, characterized in that, Includes the steering system (1000) as described in claim 9.