Axial telescoping structure, steering feel simulator, and vehicle

Abstract

The present disclosure relates to the technical field of vehicles, in particular to an axial telescopic structure, a steering feel simulator and a vehicle. The axial telescopic structure comprises a first pipe, a second pipe and a first compression assembly, the first compression assembly comprises a first rolling joint, the first rolling joint is located on the side of the second pipe, and has a first ball group in rolling connection with the outer wall of the second pipe. The axial telescopic structure is in rolling connection with the outer wall of the second pipe through the first ball group, so as to realize rolling support for the second pipe, and has strong durability and stability. The contact area of the first ball group and the second pipe is small, which can effectively reduce the axial friction of the first pipe and the second pipe, and improve the axial adjustment flexibility.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle technology, and more particularly to an axial telescopic structure, a steering feel simulator, and a vehicle. Background Technology

[0002] The automotive steering system has evolved from mechanical steering systems to hydraulic power steering systems, electro-hydraulic power steering systems, and electric power steering systems. With the development of steer-by-wire technology, steer-by-wire technology has also gradually appeared in automotive steering systems. Steer-by-wire systems achieve steering control of the vehicle through electronic signals rather than traditional mechanical connections. As an important component of the steer-by-wire system, the steering feel simulator provides the driver with realistic road feedback. The axial adjustment mechanism of the steering feel simulator achieves axial movement adjustment of the steering wheel through an axial telescopic structure.

[0003] Currently, axial telescopic structures typically consist of two coaxially mounted, retractable sleeves and a clamping mechanism on the outer sleeve to support the inner sleeve. Because existing clamping mechanisms often use clamping blocks to press against the inner sleeve, with surface contact between the clamping blocks and the inner sleeve, the axial friction generated during the axial movement and expansion of the inner sleeve is significant. This hinders the flexible adjustment of the inner sleeve's extension and contraction, and over long-term use, the clamping blocks experience severe wear, resulting in poor durability and reduced service life. Utility Model Content

[0004] To address the aforementioned technical problems, this disclosure provides an axial telescopic structure, a steering feel simulator, and a vehicle.

[0005] In a first aspect, this disclosure provides an axial telescopic structure, comprising: The first tube is hollow inside, and the outer wall of the first tube is provided with a first assembly hole that communicates with the interior. The second tube is at least partially located inside the first tube and can telescop and extend relative to the first tube; A first clamping assembly, the first clamping assembly comprising: A first roller joint is disposed in the first assembly hole. The side of the first roller joint facing the second tube has a first ball bearing assembly that is in rolling connection with the outer wall of the second tube.

[0006] Optionally, the first clamping assembly further includes a first adjusting member located on the side of the first roller joint opposite to the second tube. The first adjusting member is threadedly connected to the first mounting hole and presses against the first roller joint.

[0007] Optionally, the first clamping assembly further includes a first elastic element, which is sandwiched between the first adjusting element and the first rolling element.

[0008] Optionally, the first rolling member includes a first seat ring and a first retainer arranged coaxially, the first ball set is rotatably disposed on the first retainer, and the first adjusting member acts against the first seat ring.

[0009] Optionally, it further includes a first planar needle roller bearing that is rolledly connected to the outer wall of the second tube. The first planar needle roller bearing is disposed on the inner wall of the first tube, and the first planar needle roller bearing and the first clamping assembly are evenly spaced circumferentially from the first tube.

[0010] Optionally, the inner peripheral wall of the first tube and the outer peripheral wall of the second tube have matching anti-rotation planes.

[0011] Optionally, the second tube includes a tube body one and a tube body two that are slidably connected. The first tube is sleeved on and slidably connected to the tube body two, and the tube body two is sleeved on the tube body one. The first ball bearing assembly is rollably connected to the outer wall of the tube body two. Optionally, one side of the outer peripheral wall of the tube body one has a protruding support portion, and the support portion has an axially penetrating wire hole.

[0012] Optionally, it also includes a second clamping component with the same structure as the first clamping component, wherein the outer wall of the tube body two is provided with a second assembly hole communicating with the interior, and the second clamping component is disposed in the second assembly hole; And / or, the axial telescopic structure further includes a second planar needle roller bearing that is rolledly connected to the outer wall of the first tube body, the second planar needle roller bearing being disposed on the inner wall of the second tube body.

[0013] Secondly, this disclosure provides a steering feel simulator, including an axial drive mechanism and the aforementioned axial telescopic structure, wherein the axial drive mechanism is driven to the axial telescopic structure to drive the second tube to move and telescopically.

[0014] Thirdly, this disclosure provides a vehicle including the aforementioned axial telescopic structure or the aforementioned steering feel simulator.

[0015] The technical solution provided in this disclosure has the following advantages compared with the prior art: The axial telescopic structure, steering feel simulator, and vehicle disclosed herein include a first tube, a second tube, and a first clamping assembly. The first rolling member in the first clamping assembly is connected to the outer wall of the second tube by a first ball set, thereby achieving radial rolling support for the second tube. It has strong durability and stability. Its small contact area with the second tube can effectively reduce the axial friction between the first tube and the second tube and improve the flexibility of axial adjustment. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the axial telescopic structure described in an embodiment of this disclosure; Figure 2 This is a schematic diagram of the structure of the first roll joint according to an embodiment of the present disclosure; Figure 3 This is a schematic diagram of the structure of the first planar needle roller bearing described in an embodiment of this disclosure. Figure 1 ; Figure 4 This is a schematic diagram of the structure of the first planar needle roller bearing described in an embodiment of this disclosure. Figure 2 ; Figure 5 This is a schematic diagram of the structure of the first tube according to an embodiment of this disclosure; Figure 6 This is a schematic diagram of the structure of the second tube body according to an embodiment of this disclosure; Figure 7 This is a schematic diagram of the structure of the tube body according to an embodiment of this disclosure; Figure 8 This is a schematic diagram of the structure of the second roll joint according to an embodiment of the present disclosure; Figure 9 This is a cross-sectional view of the axial telescopic structure described in an embodiment of this disclosure.

[0019] in: 1. First tube; 11. First assembly hole; 12. First flat needle roller bearing assembly groove; 2. Second tube; 21. Tube body one; 211. Support part; 212. Wire passage hole; 22. Tube body two; 221. Second assembly hole; 222. Second flat needle roller bearing assembly groove; 3. First clamping assembly; 31. First rolling joint; 311. First ball assembly; 312. First seat ring; 313. First retainer; 32. First adjusting member; 33. First elastic member; 34. First gasket; 4. Second clamping assembly; 41. Second rolling member; 411. Second ball assembly; 412. Second seat ring; 413. Second retainer; 42. Second adjusting member; 43. Second elastic member; 44. Second gasket; 5. First flat needle roller bearing; 51. Cage; 52. Needle rollers; 53. Connecting post; 6. Second plane needle roller bearing. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0021] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0022] The specific structure of the axial telescopic structure in this embodiment is as follows: Figure 1 As shown, the axial telescopic structure includes a first tube 1 and a second tube 2 that slide and extend with each other. The first tube 1 is hollow inside, and the second tube 2 is at least partially located inside the first tube 1 and is telescopically and slidably disposed within the first tube 1. In this embodiment, the first tube 1 can be fixedly connected to the vehicle body, and the end of the second tube 2 opposite to the first tube 1 can be connected to the steering wheel assembly (not shown in the figure). The axial displacement adjustment of the steering wheel assembly can be achieved by the axial telescopic movement of the second tube 2.

[0023] The outer wall of the first tube 1 is provided with a first assembly hole 11 that communicates with the interior, and the first clamping assembly 3 is assembled in the first assembly hole 11. Specifically, as shown in the figure... Figure 1 As shown, the first clamping assembly 3 includes a first rolling member 31 and a first adjusting member 32. The first rolling member 31 is assembled in the first mounting hole 11. The side of the first rolling member 31 facing the second tube 2 has a first ball set 311 that is rolledly connected to the outer wall of the second tube 2. The first ball set 311 is rolledly connected to the outer wall of the second tube 2, realizing radial rolling support for the second tube 2. Its contact area with the second tube 2 is small, and its durability and stability are strong. It can effectively reduce the sliding friction between the first tube 1 and the second tube 2, reduce the axial friction between the first tube 1 and the second tube 2, and improve the axial adjustment flexibility.

[0024] In some embodiments, the first clamping assembly 3 may further include a first adjusting member 32. The first adjusting member 32 is located on the side of the first roller joint 31 away from the second tube 2. The first adjusting member 32 is threadedly connected to the first mounting hole 11. The clamping force of the first roller joint 31 on the second tube 2 can be adjusted by turning the first adjusting member 32 to control the depth of the first adjusting member 32, thereby realizing the adjustable clamping force on the second tube 2.

[0025] In some embodiments, multiple first clamping components 3 may be provided to further improve the sliding reliability between the first tube 1 and the second tube 2. For example, as shown... Figure 1 As shown, in this embodiment, two first mounting holes 11 are axially spaced on the first tube 1, and two first clamping components 3 are assembled into the first mounting holes 11 in a one-to-one correspondence. In addition, multiple first clamping components 3 may be arranged circumferentially along the first tube 1, and the design selection is made according to actual needs, including but not limited to the number shown in the figure.

[0026] Furthermore, such as Figure 1 As shown, the first clamping assembly 3 may further include a first elastic element 33, which is sandwiched between the first adjusting element 32 and the first rolling element 31. One end of the first elastic element 33 elastically abuts against the first adjusting element 32, and the other end of the first elastic element 33 elastically abuts against the first rolling element 31. The first elastic element 33 can provide elastic thrust to the first rolling element 31, so that the first rolling element 31 can always be tightly rolled with the second tube 2, improving the rolling reliability. For example, the first elastic element 33 can be a disc spring. Disc springs have a small thickness and excellent high load-bearing capacity, and can provide a huge preload or buffer force in a limited space, which is beneficial to further reducing the radial dimension of the tube assembly.

[0027] Furthermore, such as Figure 1 As shown, the first pressing assembly 3 may further include a first gasket 34, which is sandwiched between the first elastic member 33 and the first rolling member 31 to reduce contact wear between the first elastic member 33 and the first rolling member 31.

[0028] In some embodiments, the structure of the first roller member 31 is as follows: Figure 2 As shown, it includes a first seat ring 312 and a first retainer 313 coaxially arranged. A first ball set 311 is rolled within the first retainer 313. A first adjusting member 32 presses against the first seat ring 312. When the first adjusting member 32 is screwed into the first mounting hole 11, the first adjusting member 32 presses against the first seat ring 312. Subsequently, the first seat ring 312 further presses against the first ball set 311 to adjust the clamping force and achieve reliable rolling connection between the first ball set 311 and the second tube 2.

[0029] Exemplarily, the first ball assembly 311 of this embodiment includes a plurality of spherical balls. The first cage 313 has a limiting hole for accommodating the spherical balls, which can roll freely in the limiting hole. The spherical balls are exposed outside the first cage 313. The first seat ring 312 is provided with an annular groove on the side facing the first ball assembly 311 to limit the first ball assembly 311 and prevent the first ball assembly 311 from being misaligned or slipping. The first rolling member 31 of this embodiment can be a thrust bearing, which has only one seat ring. The balls of the thrust bearing directly contact the outer surface of the second tube 2 to form a rolling pair.

[0030] In some embodiments, the axial telescopic structure may further include a first planar needle roller bearing 5. The first planar needle roller bearing 5 is disposed on the inner wall of the first tube 1, extends along the axial direction of the first tube 1, and is rolledly connected to the outer wall of the second tube 2 to further improve the movement reliability of the first tube 1 and the second tube 2 and reduce the friction between the first tube 1 and the second tube 2.

[0031] For example, such as Figure 3 and Figure 4 As shown, the first planar needle roller bearing 5 includes a cage 51 and a plurality of freely rolling needle rollers 52. A connecting post 53 is provided on the back of the cage 51, correspondingly, as... Figure 5 As shown, the inner wall of the first tube 1 is provided with a first planar needle roller bearing assembly groove 12, and a round hole for interference fitting with the connecting column 53 is provided on the bottom surface of the first planar needle roller bearing assembly groove 12. The first planar needle roller bearing 5 is assembled in the first planar needle roller bearing assembly groove 12. The first planar needle roller bearing assembly groove 12 and the round hole at the bottom of the groove can effectively limit the first planar needle roller bearing 5 to prevent the first planar needle roller bearing 5 from moving.

[0032] In some embodiments, multiple first planar needle roller bearings 5 ​​may be provided. These bearings may be spaced apart axially along the first tube 1 or spaced apart circumferentially along the first tube 1. Preferably, in this embodiment, one first pressing component 3 and two first planar needle roller bearings 5 ​​are evenly spaced along the circumference of the first tube 1, so that three rolling supports are formed along the circumference of the second tube 2, improving the reliability of the support. Alternatively, two first pressing components 3 and two first planar needle roller bearings 5 ​​may be evenly spaced along the circumference of the first tube 1 to form four circumferential supports for the second tube 2. The choice depends on the actual situation, and this embodiment does not impose a specific limitation on this.

[0033] In some embodiments, the inner peripheral wall of the first pipe 1 and the outer peripheral wall of the second pipe 2 have matching anti-rotation planes to prevent circumferential rotation between the first pipe 1 and the second pipe 2, allowing only axial telescopic movement between the first pipe 1 and the second pipe 2, thus achieving an anti-rotation effect. That is, the inner peripheral wall profile of the first pipe 1 is similar in shape to the outer peripheral wall profile of the second pipe 2, and both have at least one matching anti-rotation plane in the circumferential direction, resulting in a non-circular irregular profile for both the inner peripheral wall profile of the first pipe 1 and the outer peripheral wall profile of the second pipe 2, preventing circumferential rotation between the first pipe 1 and the second pipe 2.

[0034] It is worth noting that the second tube 2 in this embodiment can be a single-tube structure or a double-tube structure, which can be selected according to actual needs. In this embodiment, the second tube 2 can adopt a split structure design, such as... Figure 1 , Figures 5-7 As shown, the second tube 2 includes a first tube body 21 and a second tube body 22 that are slidably connected. The first tube 1 is sleeved outside the second tube body 22 and slidably connected to it. The second tube body 22 is sleeved outside the first tube body 21. The first ball bearing assembly 311 is rotatably connected to the outer wall of the second tube body 22. The steering wheel assembly is connected to the end of the first tube body 21 that is away from the second tube body 22, and the first ball bearing assembly 311 is rotatably connected to the outer wall of the second tube body 22. The axial telescopic structure of this embodiment is a three-section tube structure, which has a larger telescopic ratio and a smaller storage volume, providing more space for the cockpit and effectively reducing intrusion into the driver's legroom, thus improving the driving experience.

[0035] In some embodiments, there are matching anti-rotation planes between the inner peripheral wall of the first tube 1 and the outer peripheral wall of the second tube 22, and between the inner peripheral wall of the second tube 22 and the outer peripheral wall of the first tube 21, so as to achieve the anti-rotation effect.

[0036] Furthermore, to further adjust the clamping force between pipe body 1 21 and pipe body 22, and to reduce the axial friction between pipe body 1 21 and pipe body 22, a second clamping component 4 can be added between pipe body 1 21 and pipe body 22. Specifically, such as Figure 1 As shown, the outer wall of the second tube 22 is similarly provided with a second assembly hole 221 that communicates with the interior. The second clamping assembly 4 can have the same structure as the first clamping assembly 3, and also includes a second rolling member 41, a second adjusting member 42, a second elastic member 43, and a second gasket 44. Similarly, the second rolling member 41 is disposed in the second assembly hole 221, and its end facing the first tube 21 has a second ball bearing assembly 411 that is rolledly connected to the outer wall of the first tube 21.

[0037] The specific structure of the second roller joint 41 is as follows: Figure 8As shown, it also includes a second seat ring 412 and a second retainer 413 coaxially arranged, with the second ball set 411 rolling within the second retainer 413. The second adjusting member 42 is located on the side of the second rolling member 41 facing away from the tube body 21 and is threadedly connected to the second mounting hole 221. One end of the second adjusting member 42 presses against the second seat ring 412. By adjusting the depth of the second adjusting member 42, the clamping force of the second ball set 411 on the second tube 2 can be controlled, thereby adjusting the clamping force on the tube body 21. The second elastic member 43 can be a disc spring, sandwiched between the second rolling member 41 and the second adjusting member 42, and a second shim 44 is added between the second elastic member 43 and the second rolling member 41 to reduce contact friction. The second pressing assembly 4 in this embodiment has the same working principle and effect as the first pressing assembly 3. The specific implementation process of the second pressing assembly 4 can be referred to the above-described operation process of the first pressing assembly 3, which will not be repeated in this embodiment.

[0038] Based on this, to further improve the mobility between tube body 1 21 and tube body 22, and to further reduce the friction between tube body 1 21 and tube body 22, this embodiment may also install a second planar needle roller bearing 6 inside tube body 22. Figure 9 As shown, the structure of the second planar needle roller bearing 6 is the same as that of the first planar needle roller bearing 5. For details on the structure of the second planar needle roller bearing 6, please refer to [reference needed]. Figure 3 and Figure 4 The inner wall of tube body 22 is provided with a second planar needle roller bearing assembly groove 222, such as... Figure 6 As shown, the bottom of the groove is also provided with a round hole for interference fitting of the second flat needle roller bearing 6. The second flat needle roller bearing 6 is assembled in the second flat needle roller bearing assembly groove 222. The round hole at the bottom of the second flat needle roller bearing assembly groove 222 can effectively limit the second flat needle roller bearing 6 to prevent the second flat needle roller bearing 6 from moving.

[0039] Similarly, multiple second planar needle roller bearings 6 can also be provided. Preferably, in this embodiment, a second pressing component 4 and two second planar needle roller bearings 6 are evenly spaced along the circumference of the second tube 22, so that the circumference of the first tube 21 forms a three-point rolling support, improving the reliability of the support. Preferably, in this embodiment, as... Figure 9 As shown, in the circumferential direction of the axial telescopic structure, a first clamping component 3, two first planar needle roller bearings 5, a second clamping component 4, and two second planar needle roller bearings 6 are staggered. In addition, other arrangements can also be selected, including but not limited to the arrangement shown in the attached figure of this embodiment.

[0040] Optionally, such as Figure 7As shown, in this embodiment, one side of the outer peripheral wall of the tube body 21 has a protruding support portion 211. The support portion 211 has an axially penetrating wire-passing hole 212 to uniformly and centrally arrange the wire bundle on one side of the tube body 21, preventing the wire bundle from being arranged haphazardly and occupying too much space. That is, an integrally formed support portion 211 protrudes from the outer peripheral wall of the tube body 21, and the support portion 211 is biased towards one side of the peripheral wall of the tube body 21. For example, as shown... Figure 7 As shown, the support portion 211 is positioned biased towards the top end of the peripheral wall of the tube body 21, so that the tube body 21 presents as... Figure 7 The eccentric structure shown has a large top volume and a small bottom volume. In this embodiment, the support part 211 is preferably set on the side of the tube body 21 away from the driver's seat to prevent the wire harness from occupying the driver's leg space and improve the driving experience.

[0041] Understandably, in actual use, the coaxially arranged first tube 1, tube body 22, and tube body 21 are presented as a whole. Figure 1 In the tilted state shown, the first tube 1, the second tube 22, and the first tube 21 have certain tilt angles in the axial and horizontal directions. Since the first tube 21 is connected to the steering wheel assembly, it is the closest tube to the driver. The area below the first tube 21 is the driver's legroom. In this embodiment, the wiring harness is preferably confined to the side of the first tube 21 away from the driver's seat by the support part 211, so as not to occupy too much legroom for the driver and to improve driving comfort. The wiring harness referred to in this embodiment includes, but is not limited to, the signal wiring harness of the steering wheel assembly. This embodiment does not impose too many restrictions on the type of wiring harness. In some embodiments, the first tube 21 can be a shaped cold-pressed profile, and the support part 211 can be integrally formed with the first tube 21.

[0042] Furthermore, this embodiment also provides a steering feel simulator, which includes an axial drive mechanism and the aforementioned axial telescopic structure. The axial drive mechanism is driven to the axial telescopic structure to drive the second tube 2 to move axially. Exemplarily, the axial drive mechanism can be a linear output structure, which may include a rotary motor, a lead screw, and a nut seat screwed to the lead screw. The rotary output end of the rotary motor is connected to the lead screw. Taking a three-section tube structure as an example, the nut seat is connected to the tube body 21, and the rotary motor drives the lead screw to rotate, causing the tube body 21 to move axially. The steering feel simulator of this embodiment, because it includes the aforementioned axial telescopic structure, has the beneficial effects of the aforementioned axial telescopic structure, which will not be elaborated further here.

[0043] In addition, this embodiment also provides a vehicle that includes the above-described axial telescopic structure or the above-described steering feel simulator, and thus has the beneficial effects of the above-described axial telescopic structure or steering feel simulator, which will not be described in detail here.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An axial telescopic structure, characterized in that, include: The first tube is hollow inside, and the outer wall of the first tube is provided with a first assembly hole that communicates with the interior. The second tube is at least partially located inside the first tube and can telescop and extend relative to the first tube; A first clamping assembly, the first clamping assembly comprising: A first roller joint is disposed in the first assembly hole. The side of the first roller joint facing the second tube has a first ball bearing assembly that is in rolling connection with the outer wall of the second tube.

2. The axial telescopic structure according to claim 1, characterized in that, The first clamping assembly further includes a first adjusting member, which is located on the side of the first roller joint opposite to the second tube. The first adjusting member is threadedly connected to the first mounting hole and presses against the first roller joint.

3. The axial telescopic structure according to claim 2, characterized in that, The first clamping assembly further includes a first elastic element, which is sandwiched between the first adjusting element and the first rolling element.

4. The axial telescopic structure according to claim 2, characterized in that, The first rolling element includes a first seat ring and a first retainer arranged coaxially, the first ball set is rotatably disposed on the first retainer, and the first adjusting member acts against the first seat ring.

5. The axial telescopic structure according to claim 1, characterized in that, It also includes a first planar needle roller bearing that is rolledly connected to the outer wall of the second tube. The first planar needle roller bearing is disposed on the inner wall of the first tube, and the first planar needle roller bearing and the first clamping assembly are evenly spaced around the first tube in the circumferential direction.

6. The axial telescopic structure according to claim 1, characterized in that, The inner peripheral wall of the first tube and the outer peripheral wall of the second tube have matching anti-rotation planes.

7. The axial telescopic structure according to any one of claims 1-6, characterized in that, The second tube includes a tube body one and a tube body two that are slidably connected. The first tube is sleeved on the tube body two and slidably connected to the tube body two. The tube body two is sleeved on the tube body one. The first ball bearing assembly is slidably connected to the outer wall of the tube body two.

8. The axial telescopic structure according to claim 7, characterized in that, One side of the outer peripheral wall of the tube body has a protruding support portion, and an axially penetrating wire hole is provided in the support portion.

9. The axial telescopic structure according to claim 7, characterized in that, It also includes a second clamping component with the same structure as the first clamping component. The outer wall of the second tube body is provided with a second assembly hole that communicates with the interior. The second clamping component is disposed in the second assembly hole. And / or, the axial telescopic structure further includes a second planar needle roller bearing that is rolledly connected to the outer wall of the first tube body, the second planar needle roller bearing being disposed on the inner wall of the second tube body.

10. A steering feel simulator, characterized in that, It includes an axial drive mechanism and an axial telescopic structure as described in any one of claims 1-8, wherein the axial drive mechanism is driven to the axial telescopic structure to drive the second tube to move axially and telescopically.

11. A vehicle, characterized in that, Includes the axial telescopic structure as described in any one of claims 1-9, or the steering feel simulator as described in claim 10.

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