Steering column assembly and vehicle

Abstract

The utility model discloses a steering column assembly and a vehicle, the steering column assembly comprises a steering column, the inner circumference of the steering column is provided with a limit groove extending along the axial direction of the steering column; the guide sleeve is arranged in the steering column, a rolling piece and a guide groove are arranged on the periphery of the guide sleeve, and the rolling piece is arranged in the limiting groove in a rolling mode; the steering shaft is sleeved with the guide sleeve, the steering shaft is provided with a limiting part, the limiting part is matched with the guide groove, and when the limiting part makes contact with the end of the guide groove, the steering shaft and the guide sleeve are in limiting fit in the circumferential direction of the steering shaft. Therefore, by arranging the steering column assembly, the number of turns of rotation of the steering shaft can be limited, so that the angle sensor and the clock spring are protected, and the steering column assembly is simple and reliable in structure, low in cost and small in size.

Description

Technical Field

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

[0002] The steering system is one of the important systems of the automobile chassis. The function of the steering system is to convert the torque applied by the driver on the steering wheel into the movement of the wheels through the steering column, intermediate shaft and other components to achieve the purpose of vehicle steering. As an important component of the steering system, the steering column is a component that connects the steering wheel and the steering gear. Its main function is to transmit the steering wheel torque to the steering gear through the intermediate transmission shaft. With the development of steering technology, the steering system has developed from mechanical steering, hydraulic steering, electric hydraulic, electric power steering, and wire control steering.

[0003] In the related technology, compared with other steering systems, the wire control steering cancels the mechanical connection in the traditional steering system. The steering column and the wire control steering gear are only transmitted through electrical signals to realize information exchange between the upper and lower structures. Therefore, the hard limit of the rack travel of the steering gear of the wire control system will not meet the purpose of mechanical hard limit of the number of steering wheel turns. There are many physical buttons on the steering wheel in the whole vehicle. Currently, it is necessary to add a clock spring between the steering column and the steering wheel to solve the power supply and communication needs. However, the clock spring has a limit on the number of turns. After exceeding the number of turns, the clock spring will be damaged, causing the steering wheel buttons to fail. In addition, the angle sensor also has angle range restrictions, so the steering column cannot be rotated a random number of times. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a steering column assembly, which can limit the number of rotations of the steering shaft, thereby achieving a protective effect on the angle sensor and the clock spring.

[0005] The utility model further provides a vehicle.

[0006] According to the first aspect of the utility model, the steering column assembly includes: a steering column, the inner periphery of which is provided with a limit groove extending along its axial direction; a guide sleeve, which is arranged in the steering column, and the outer periphery of the guide sleeve is provided with a rolling element and a guide groove, and the rolling element is rollably arranged in the limit groove; a steering shaft, which is sleeved by the guide sleeve, and the steering shaft is provided with a limit portion, and the limit portion is matched with the guide groove. When the limit portion contacts the end of the guide groove, the steering shaft and the guide sleeve are matched in the circumferential limit position of the steering shaft.

[0007] In the above technical scheme, the guide sleeve is sleeved with the steering shaft, and the steering column is sleeved with the guide sleeve again. The steering column is fixed, and the guide sleeve is fixed circumferentially. When the limiting part sleeve rotates with the rotation of the steering shaft, the limiting part on the steering shaft rotates relative to the guide groove on the guide sleeve, and the limiting part on the steering shaft moves relative to the guide groove on the guide sleeve until the limiting part contacts the end of the guide groove (in the process of the limiting part on the steering shaft rotating relative to the guide groove of the guide sleeve, the guide groove will be subjected to the axial force from the limiting part and cause the guide sleeve to produce axial displacement). At this time, the guide groove and the limiting part produce a circumferential limiting cooperation relationship, that is, the end of the guide groove prevents the limiting part from continuing to rotate, so that the number of circles that the steering shaft continuously rotates in a certain direction (such as clockwise or counterclockwise) can be effectively limited, thereby achieving the effect of limiting the number of circles that the steering wheel continuously rotates in a certain direction (such as clockwise or counterclockwise), ... And improve the protection effect of the angle sensor and the clock spring (for example, in the wire control steering system, compared with other steering systems, the arrangement form of canceling the intermediate shaft makes the steering shaft and the wire control steering gear realize the upper and lower information interaction only through the transmission of electrical signals, so the hard limit of the rack travel of the steering gear of the traditional steering system will not meet the purpose of mechanical hard limit of the number of steering wheel turns, and there are many physical buttons on the steering wheel of the whole vehicle, and a clock spring is set between the steering wheel and the column to solve the power supply and communication needs, but the clock spring has a limit on the number of turns. After exceeding the number of turns, the clock spring will be damaged, causing the steering wheel button to fail, and the angle sensor also has an angle range restriction requirement, so the steering shaft cannot be rotated at will, and the embodiment in this case can effectively achieve the effect of limiting the number of turns of the steering wheel, thereby achieving the protection effect of protecting the angle sensor and the clock spring). In addition, the rotation limit mechanism has a simple and reliable structure, low cost, and small size, which effectively improves its practicality.

[0008] Therefore, by setting up the steering column assembly, the number of rotations of the steering shaft can be limited, thereby achieving the protection effect on the angle sensor and the clock spring, and its structure is simple and reliable, low cost and small size.

[0009] In some examples of the present invention, the guide groove is spirally shaped on the outer circumference of the guide sleeve.

[0010] In some examples of the present invention, there are a plurality of the limiting parts, and the plurality of limiting parts are arranged at intervals on the steering shaft and a shape formed by sequentially connecting the limiting parts is a spiral shape.

[0011] In some examples of the present invention, the limiting portion is configured as a pin, and the limiting portion is protruded from the outer wall surface of the steering shaft toward the guide groove.

[0012] In some examples of the present invention, the steering column assembly further includes: an elastic buffer, which is respectively arranged at both ends of the guide groove to contact and cooperate with the limiting portion at the end of the guide groove.

[0013] In some examples of the present invention, there are multiple rolling elements, and the multiple rolling elements are arranged at intervals on the guide sleeve; there are multiple limiting grooves, and the multiple limiting grooves are arranged at intervals in the circumferential direction of the steering column, and each limiting groove group corresponds to at least one rolling element.

[0014] In some examples of the present invention, the guide sleeve includes: a first section, a plurality of rolling elements are arranged on the periphery of the first section; and a second section, the second section is connected to one end of the first section, a guide groove is arranged on the periphery of the second section.

[0015] In some examples of the utility model, the guide sleeve is provided with a limit column extending along its axial direction, the cross-section of the limit column is circular, a portion of the limit column extends into the limit groove, the limit column forms a mounting hole, the rolling element is installed in the mounting hole, and the rolling element protrudes from the outer peripheral surface of the limit column.

[0016] In some examples of the present invention, the steering column assembly further includes: a bearing, wherein the bearing is disposed in the steering column and located at one end of the steering column, the steering shaft passes through the bearing, the steering shaft is provided with a limiting step, and the limiting step abuts against a side of the bearing facing the guide sleeve.

[0017] A vehicle according to a second aspect of the utility model comprises: the above-mentioned steering column assembly.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a structural schematic diagram of a steering column assembly according to an embodiment of the utility model;

[0021] Figure 2 is an exploded view of a steering column assembly according to an embodiment of the utility model;

[0022] Figure 3 is a cross-sectional view of a steering column assembly according to an embodiment of the utility model;

[0023] Figure 4 is a schematic structural diagram of a steering column according to an embodiment of the utility model;

[0024] Figure 5 It is a structural schematic diagram of a guide sleeve according to an embodiment of the utility model;

[0025] Figure 6 is a schematic structural diagram of a steering shaft according to an embodiment of the utility model;

[0026] Figure 7 It is a schematic structural diagram of a bearing and a spring clip according to an embodiment of the utility model.

[0027] Reference numerals:

[0028] 100. Steering column assembly;

[0029] 1. Steering column; 11. Limiting groove;

[0030] 2. Guide sleeve; 21. Rolling element; 22. Guide groove; 23. First section; 24. Second section; 25. Limiting column;

[0031] 3. Steering shaft; 31. Limiting part; 32. Limiting step;

[0032] 4. Elastic buffer; 5. Bearing; 6. Spring clip. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary.

[0034] Reference below Figure 1-Figure 7 The steering column assembly 100 according to the embodiment of the present invention is described, which can limit the number of rotations of the steering shaft 3, thereby achieving a protective effect on the angle sensor and the clock spring.

[0035] Combination Figure 1-Figure 7 As shown, the steering column assembly 100 according to the first embodiment of the utility model comprises a steering column 1, a guide sleeve 2 and a steering shaft 3. The steering shaft 3 is fixedly connected to the steering wheel, and when the steering wheel rotates, the steering shaft 3 is driven to rotate synchronously.

[0036] Specifically, the inner periphery of the steering column 1 is provided with a limiting groove 11 extending along its axial direction, the guide sleeve 2 is arranged in the steering column 1, and the outer periphery of the guide sleeve 2 is provided with a rolling element 21 and a guide groove 22, the rolling element 21 is rotatably arranged in the limiting groove 11, the steering shaft 3 is sleeved by the guide sleeve 2, and the steering shaft 3 is provided with a limiting portion 31, and the limiting portion 31 is matched with the guide groove 22. When the limiting portion 31 contacts the end of the guide groove 22, the steering shaft 3 and the guide sleeve 2 are matched in the circumferential limit direction of the steering shaft 3.

[0037] Specifically, when the steering wheel is turned, the steering wheel will drive the steering shaft 3 to rotate synchronously. Since the limiting portion 31 on the steering shaft 3 is matched with the guide groove 22 on the guide sleeve 2, when the limiting portion 31 rotates relatively with the steering shaft 3 in the guide groove 22, an axial force will be exerted on the guide sleeve 2. Since the limiting groove 11 on the steering column 1 limits the rolling element 21 circumferentially, the guide sleeve 2 can only perform axial linear motion along the limiting groove 11, and finally the rotational motion of the upper limit portion 31 of the steering shaft 3 relative to the guide sleeve 2 is converted into the axial linear motion of the guide sleeve 2 relative to the steering column 1.

[0038] Furthermore, a limiting groove 11 is axially arranged on the inner periphery of the steering column 1 to guide the movement direction of the rolling element 21 , so that the guide sleeve 2 can move according to a specified movement path, thereby ensuring the movement stability and accuracy of the guide sleeve 2 .

[0039] Among them, the rolling element 21 on the outer periphery of the guide sleeve 2 can be rollably arranged in the limiting groove 11 of the steering column 1. Since the limiting groove 11 extends in the axial direction, it can form a circumferential limiting effect on the rolling element 21, so that the limiting portion 31 of the steering shaft 3 can be relatively rotated relative to the guide groove 22 on the guide sleeve 2. The guide groove 22 is subjected to the axial force from the limiting portion 31, causing the guide sleeve 2 to produce axial displacement, thereby achieving the effect of converting the relative rotational motion of the guide sleeve 2 into axial linear motion. In addition, the axial linear motion of the guide sleeve 2 relative to the steering column 1 is rolling friction, which can effectively reduce the motion friction and improve the smoothness of the motion.

[0040] The guide sleeve 2 is sleeved with the steering shaft 3, and the steering column 1 is sleeved with the guide sleeve 2 again. The steering column 1 is fixed, and the guide sleeve 2 is circumferentially fixed. When the limiting portion 31 rotates along with the rotation of the steering shaft 3, the limiting portion 31 on the steering shaft 3 rotates relative to the guide groove 22 on the guide sleeve 2, and the limiting portion 31 on the steering shaft 3 moves relative to the guide groove 22 on the guide sleeve 2 until the limiting portion 31 contacts the end of the guide groove 22 (in the process of the limiting portion 31 on the steering shaft 3 rotating relative to the guide groove 22 of the guide sleeve 2, the guide groove 22 will be subjected to the axial force from the limiting portion 31, causing the guide sleeve 2 to produce axial displacement). At this time, the guide groove 22 and the limiting portion 31 have a circumferential limiting cooperation relationship, that is, the end of the guide groove 22 prevents the limiting portion 31 from continuing to rotate, so that the number of circles of continuous rotation of the steering shaft 3 in a certain direction (such as clockwise or counterclockwise) can be effectively limited, thereby realizing the steering wheel in a certain direction (such as clockwise) The direction of the steering wheel (such as clockwise) is controlled. or counterclockwise), thereby improving the protection effect of the angle sensor and the clock spring (for example, in the wire control steering system, compared with other steering systems, the arrangement form of canceling the intermediate shaft makes the steering shaft and the wire control steering gear realize the upper and lower information interaction only through the transmission of electrical signals, so the hard limit of the rack travel of the steering gear of the traditional steering system will not meet the purpose of mechanical hard limit of the number of steering wheel turns, and there are many physical buttons on the steering wheel of the whole vehicle, and a clock spring is set between the steering wheel and the column to solve the power supply and communication needs, but the clock spring has a limit on the number of turns. After exceeding the number of turns, the clock spring will be damaged, causing the steering wheel button to fail, and the angle sensor also has an angle range restriction requirement, so the steering shaft cannot be rotated at will, and the embodiment in this case can effectively achieve the effect of limiting the number of turns of the steering wheel, thereby achieving the protection effect of protecting the angle sensor and the clock spring). In addition, the rotation limit mechanism has a simple and reliable structure, low cost, and small size, which effectively improves its practicality.

[0041] In particular, the axial dimensions of the guide groove 22 on the guide sleeve 2 at the two ends with the largest distance in the axial direction of the steering shaft 3 define an adjustment range for the axial linear motion of the guide sleeve 2 relative to the steering column 1 .

[0042] Therefore, by providing the steering column assembly 100, the number of rotations of the steering shaft 3 can be limited, thereby achieving a protective effect on the angle sensor and the clock spring, and the structure is simple and reliable, the cost is low, and the volume is small.

[0043] According to some optional embodiments of the present invention, combined with Figure 2 , Figure 3 and Figure 7 As shown, the guide groove 22 is spirally shaped on the outer circumference of the guide sleeve 2 .

[0044] The guide groove 22 extends in a spiral shape along the outer circumference of the guide sleeve 2, so that the guide sleeve 2 can also move linearly along the axial direction during the relative rotational movement with the limiting portion 31. This allows the steering shaft 3 to rotate multiple times, and also allows the steering shaft 3 to accurately limit the number of rotations of the steering shaft 3 by setting the effective path length of the guide groove 22, thereby ensuring the limiting effect of the steering column assembly 100 on the number of steering wheel rotations. The spiral guide groove 22 also has a certain self-locking property, so that the guide sleeve 2 can be prevented from rotating and falling under the action of its own gravity during the relative rise of the steering column 1.

[0045] Specifically, there are a plurality of limiting portions 31 , which are spaced apart on the steering shaft 3 , and a shape formed by sequentially connecting the plurality of limiting portions 31 is a spiral shape.

[0046] It can be understood that a plurality of limit portions 31 are arranged at intervals on the inner wall of the steering column 1, and the spiral shape formed by the plurality of limit portions 31 connected together matches the spiral shape of the guide groove 22, so that the plurality of limit portions 31 can all smoothly slide relative to each other along the guide path of the guide groove 22 (actually, the guide groove 22 is fixed circumferentially, and the limit portions 31 slide and rotate relative to the guide groove 22). Moreover, since the plurality of limit portions 31 are connected to form spiral segments at different positions on the guide groove 22, the force load on the limit portion 31 when it moves in the guide groove 22 can be dispersed, thereby avoiding local stress concentration, thereby improving the smoothness of movement of the limit portion 31.

[0047] According to some optional embodiments of the present invention, combined with Figure 2 , Figure 3 and Figure 6 As shown, the limiting portion 31 is configured as a pin, and the limiting portion 31 is protruded from the outer wall surface of the steering shaft 3 toward the guide groove 22 .

[0048] Among them, the pin can withstand variable loads and impacts better. One end of the limiting portion 31 is connected to the outer wall of the steering shaft 3, and the other end thereof protrudes toward the guide groove 22. In this way, it is convenient for the limiting portion 31 to extend into the guide groove 22. Therefore, on the basis of the circumferential limiting cooperation that can occur when the limiting portion 31 contacts the end of the guide groove 22, it can also not interfere with the smooth sliding effect of the limiting portion 31 relative to the guide groove 22 with a certain stroke set, thereby improving the rationality of its layout.

[0049] According to some optional embodiments of the present invention, combined with Figure 5 As shown, the steering column assembly 100 further includes an elastic buffer 4 , which is respectively disposed at both ends of the guide groove 22 to contact and cooperate with the limiting portion 31 at the end of the guide groove 22 .

[0050] Furthermore, the elastic buffer 4 is made of elastic material, which can be elastically deformed, thereby effectively absorbing and dispersing impact energy, reducing vibration and noise. The guide groove 22 is provided with elastic buffers 4 at both ends along its own guide path, so that the impact energy of the limiting portion 31 when it is in limiting contact with the end of the guide groove 22 can be effectively absorbed and dispersed, thereby achieving the effects of buffering, vibration reduction and noise reduction.

[0051] In addition, the hand feel motor can reduce the demand for steering wheel end torque by adjusting the hard limit (i.e., the limit groove 11, the guide groove 22, etc.) in synchronization with the soft limit (i.e., the elastic buffer 4), thereby reducing the power of the hand feel motor by more than 80%, which can effectively reduce the size, volume and cost of the motor.

[0052] According to some optional embodiments of the present invention, combined with Figure 2 , Figure 3 and Figure 5 As shown, there are multiple rolling elements 21, which are spaced apart on the guide sleeve 2; there are multiple limiting grooves 11, which are spaced apart in the circumferential direction of the steering column 1, and each limiting groove 11 corresponds to at least one rolling element 21.

[0053] Among them, multiple rolling elements 21 can increase the force transmission path and make the load distribution more uniform, thereby improving the movement smoothness and reliability of the guide sleeve 2 when performing axial linear motion relative to the steering column 1; multiple limit grooves 11 are arranged at intervals on the inner periphery of the steering column 1 along the axial direction, and multiple limit grooves 11 extend along the axial direction, which can increase the force contact position between the guide sleeve 2 and the steering column 1 in different directions, thereby improving the movement smoothness and reliability of the guide sleeve 2 when performing axial linear motion relative to the steering column 1.

[0054] Specifically, combined Figure 2 , Figure 3 and Figure 5 As shown, the guide sleeve 2 includes a first section 23 and a second section 24 . A plurality of rolling elements 21 are arranged on the periphery of the first section 23 . The second section 24 is connected to one end of the first section 23 . A guide groove 22 is arranged on the periphery of the second section 24 .

[0055] It can be understood that the guide sleeve 2 is sequentially formed with a first section 23 and a second section 24 along its axial direction, and a plurality of rolling elements 21 are arranged on the outer periphery of the first section 23, which can facilitate the rolling cooperation between the guide sleeve 2 and the limiting groove 11 on the steering column 1, thereby ensuring that the guide sleeve 2 can perform axial linear motion relative to the steering column 1, which is beneficial to achieving the effect of limiting the number of rotations of the steering shaft 3; a guide groove 22 is arranged on the outer periphery of the second section 24, and the guide groove 22 can cooperate with the limiting portion 31 to achieve the effect of limiting the number of rotations of the steering shaft 3, thereby protecting the angle sensor and the clock spring.

[0056] According to some optional embodiments of the present invention, combined with Figure 5 As shown, the guide sleeve 2 is provided with a limit column 25 extending along its axial direction. The cross-section of the limit column 25 is circular. A part of the limit column 25 extends into the limit groove 11. The limit column 25 forms a mounting hole. The rolling element 21 is installed in the mounting hole. The rolling element 21 protrudes from the outer peripheral surface of the limit column 25.

[0057] Specifically, along the axial direction of the steering shaft 3, the guide sleeve 2 is provided with a limiting column 25, and a part of the limiting column 25 extends into the limiting groove 11, so that the limiting column 25 and the limiting groove 11 can form a circumferential limiting cooperation effect, thereby ensuring that the problem of the guide sleeve 2 rotating with the steering shaft 3 is avoided, and it can also be beneficial to convert the rotational movement of the guide sleeve 2 relative to the limiting part 31 into the axial linear movement of the guide sleeve 2 relative to the steering column 1.

[0058] Among them, the rolling member 21 is installed in the mounting hole on the limiting column 25, which can provide a stable mounting position for the rolling member 21 to prevent it from axial movement. Moreover, the rolling member 21 protrudes from the outer peripheral surface of the limiting column 25, which makes it easy for the rolling member 21 to contact the limiting groove 11, so that it can establish a rolling fit relationship with the limiting groove 11 along the axial direction, which is conducive to achieving the effect of converting the relative rotational motion of the guide sleeve 2 into axial linear motion.

[0059] According to some optional embodiments of the present invention, combined with Figure 2 and Figure 7 As shown, the steering column assembly 100 also includes a bearing 5, which is arranged in the steering column 1 and is located at one end of the steering column 1. The steering shaft 3 passes through the bearing 5, and the steering shaft 3 is provided with a limiting step 32, which abuts against the side of the bearing 5 facing the guide sleeve 2.

[0060] Specifically, the bearing 5 can be used to support the steering shaft 3, thereby ensuring that the steering shaft 3 can rotate smoothly, and can also ensure the relative position and rotation accuracy of the steering shaft 3, thereby ensuring the running stability and accuracy of the steering shaft 3, and further improving the working reliability of the steering shaft 3. Among them, the limiting step 32 on the steering shaft 3 can play an axial limiting effect on the bearing 5, thereby ensuring the relative position stability of the bearing 5.

[0061] Optionally, combined Figure 2 and Figure 5 As shown, the steering column assembly 100 also includes a spring clip 6. A mounting portion is provided on the steering shaft 3. The mounting portion is located at the axial end of the bearing 5 away from the guide sleeve 2. The spring clip 6 is sleeved on the mounting portion, which can have an axial limiting effect on the steering shaft 3 and the bearing 5, thereby ensuring their position stability.

[0062] The vehicle according to the embodiment of the second aspect of the utility model includes the steering column assembly 100 of the above embodiment, so that the vehicle with the steering column assembly 100 (adopting a wire-controlled steering system) can mechanically limit the number of turns of the steering wheel, thereby achieving a protective effect on the angle sensor and the clock spring, thereby improving the driving safety of the vehicle.

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0064] 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 a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0065] 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 utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0066] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

[0067] 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 utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0068] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A steering column assembly, characterized in that: include: A steering column, wherein the inner periphery of the steering column is provided with a limiting groove extending along the axial direction thereof; A guide sleeve, the guide sleeve is arranged in the steering column, a rolling element and a guide groove are arranged on the outer periphery of the guide sleeve, and the rolling element is rollably arranged in the limiting groove; A steering shaft is sleeved by the guide sleeve, and the steering shaft is provided with a limiting portion, and the limiting portion is matched with the guide groove. When the limiting portion contacts the end of the guide groove, the steering shaft and the guide sleeve are matched in the circumferential limit position of the steering shaft.

2. The steering column assembly according to claim 1, characterized in that: The guide groove is spirally shaped on the outer circumference of the guide sleeve.

3. The steering column assembly according to claim 2, characterized in that: There are a plurality of the limiting parts, and the plurality of limiting parts are arranged at intervals on the steering shaft and a shape formed by sequentially connecting the limiting parts is a spiral shape.

4. The steering column assembly according to claim 1, characterized in that: The limiting portion is configured as a pin, and the limiting portion is protruded from the outer wall surface of the steering shaft toward the guide groove.

5. The steering column assembly according to claim 1, characterized in that: Also includes: Elastic buffer parts are respectively arranged at two ends of the guide groove to contact and cooperate with the limiting part at the end of the guide groove.

6. The steering column assembly according to claim 1, characterized in that: There are multiple rolling elements, and the multiple rolling elements are arranged on the guide sleeve at intervals; There are a plurality of the limiting grooves, and the plurality of the limiting grooves are arranged at intervals in the circumferential direction of the steering column, and each of the limiting grooves corresponds to at least one rolling element.

7. The steering column assembly according to claim 6, characterized in that: The guide sleeve comprises: A first section, wherein a plurality of rolling elements are disposed on the outer periphery of the first section; The second section is connected to one end of the first section, and the outer periphery of the second section is provided with the guide groove.

8. The steering column assembly according to claim 1, characterized in that: The guide sleeve is provided with a limiting column extending along its axial direction, the cross section of the limiting column is circular, a part of the limiting column extends into the limiting groove, the limiting column forms a mounting hole, the rolling element is mounted in the mounting hole, and the rolling element protrudes from the outer peripheral surface of the limiting column.

9. The steering column assembly according to claim 1, characterized in that: Also includes: A bearing is arranged in the steering column and located at one end of the steering column, the steering shaft passes through the bearing, the steering shaft is provided with a limiting step, and the limiting step abuts against a side of the bearing facing the guide sleeve.

10. A vehicle, characterized in that: include: The steering column assembly according to any one of claims 1 to 9.

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