Automobile steering device and automobile

Abstract

This application discloses an automotive steering device and an automobile. The device is connected to a steering wheel via an output shaft. A limit block is fixedly connected to the end of the output shaft away from the steering wheel. The limit block has a limit groove extending radially along the output shaft. The first end of a guide post slides in the limit groove, and the second end of the guide post moves along the guide groove of a guide housing. The guide post can be limited in two selected directions by engaging with a first stop and a second stop in the guide housing. Thus, during the rotation of the steering wheel, the limit block rotates synchronously via the output shaft, causing the guide post to move along the limit groove and the guide groove simultaneously. During the movement, the guide post engages with the first stop and the second stop, thereby limiting the rotation range of the steering wheel in both directions and reducing safety hazards during vehicle operation.

Description

Technical Field

[0001] This application relates to the field of automotive steering technology, and more specifically, to an automotive steering device and an automobile. Background Technology

[0002] Currently, with the development of the automotive steering industry, the application of steer-by-wire is becoming increasingly widespread. However, steer-by-wire transmits steering signals through electronic signals. Due to its lack of mechanical connection, the steering wheel may rotate in one direction without restriction during the steering process, leading to overload or damage to the steering device and posing a safety hazard during vehicle operation.

[0003] In conclusion, how to limit the rotation range of the steering device and reduce safety hazards during vehicle operation is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a car steering device and a car, which limits the rotation range of the steering device and reduces safety hazards during car driving.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A car steering device, characterized in that it comprises: an output shaft for connecting a steering wheel; a limiting block fixedly connected to one end of the output shaft away from the steering wheel, the limiting block having a limiting groove extending radially along the output shaft; a guide post, a first end of the guide post slidingly engaging with the limiting groove; and a guide housing rotatably engaging with the output shaft, the guide housing being provided with a guide groove, a first stop, and a second stop, the second end of the guide post moving along the guide groove and engaging with the first stop and the second stop respectively in two rotational directions.

[0007] In some embodiments, the limiting block includes an annular portion and an extension portion that are integrally formed, the annular portion being sleeved on the output shaft and having an interference fit with the output shaft; the extension portion extending radially along the output shaft, and the limiting groove being formed on the side of the extension portion opposite to the steering wheel.

[0008] In some embodiments, the output shaft has a cutting portion on its circumferential side, and the inner wall of the annular portion has a cutting surface adapted to the cutting portion, so that the limiting block rotates synchronously with the output shaft.

[0009] In some embodiments, the limiting groove is a T-shaped groove, and the first end of the guide post is a T-shaped structure adapted to the T-shaped groove; or, the limiting groove is a dovetail groove, and the first end of the guide post is a dovetail-shaped structure adapted to the dovetail groove.

[0010] In some embodiments, the guide groove is a spiral structure, with the first stop block located at the root of the guide groove and the second stop block located at the top of the guide groove.

[0011] In some embodiments, the spiral structure of the guide groove rotates counterclockwise, the first stop engages with the guide post during the clockwise rotation of the output shaft, and the second stop engages with the guide post during the counterclockwise rotation of the output shaft.

[0012] Alternatively, the spiral structure has a clockwise rotation of the guide groove, and the first stop engages with the guide post during the counterclockwise rotation of the output shaft, while the second stop engages with the guide post during the clockwise rotation of the output shaft.

[0013] In some embodiments, both the first stop and the second stop protrude toward the limiting block along the axial direction of the guide housing; the first abutment surface of the first stop and the guide post is a plane, and the other side of the first stop away from the first abutment surface is an inclined surface; the second abutment surface of the second stop and the guide post is a plane, and the other side of the second stop away from the second abutment surface is an inclined surface.

[0014] In some embodiments, rubber pads are provided on the first abutting surface, the second abutting surface, and the side of the guide post that abuts against the first abutting surface and the second abutting surface.

[0015] In some embodiments, the first stop and the second stop within the guide housing are integrally formed structures; both the first stop and the second stop extend from the bottom of the guide housing and protrude from the guide groove.

[0016] In some embodiments, the second end of the guide post is a cylindrical structure that mates with the guide groove.

[0017] An automobile includes a steering system as described above.

[0018] The automotive steering device provided in this application connects to the steering wheel via an output shaft. A limit block is fixedly connected to the end of the output shaft away from the steering wheel. The limit block has a limit groove extending radially along the output shaft. The first end of the guide post slides in the limit groove, and the second end of the guide post moves along the guide groove of the guide housing. The guide post can be limited in two selected directions by engaging with the first stop and the second stop in the guide housing. Thus, during the rotation of the steering wheel, the limit block rotates synchronously via the output shaft, causing the guide post to move along the limit groove while simultaneously moving along the guide groove, and engaging with the first stop and the second stop during the movement. This limits the rotation range of the steering wheel in both directions, reducing safety hazards during vehicle operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an automobile steering device provided in an embodiment of this application;

[0021] Figure 2 for Figure 1 The image shows a front view of the car steering system.

[0022] Figure 3 This is a schematic diagram of the cooperation between the guide column and the guide groove in an automobile steering device provided in an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the structure of an automobile steering device provided in an embodiment of this application from another perspective;

[0024] Figure 5 A schematic diagram of a guide groove in an automotive steering device provided in an embodiment of this application;

[0025] Figure 6 A schematic diagram illustrating the limiting relationship between the guide column and the first stop block in an automotive steering device provided in an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the guide column and the second stop limit in the automobile steering device provided in the embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100 - Output shaft, 110 - Cutting section;

[0029] 200 - Limit block, 210 - Limit slot;

[0030] 300 - Guide column;

[0031] 400 - Guide housing, 410 - Guide groove, 420 - First stop, 430 - Second stop. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be a limitation of this application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise.

[0034] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0035] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0036] The terms "parallel" and "perpendicular" used in this application refer to "basically parallel" and "basically perpendicular" in practical operation. "Basically parallel" can be understood as parallelism with a certain degree of error, and similarly, "basically perpendicular" can be understood as perpendicularity with a certain degree of error.

[0037] like Figures 1-7As shown in the embodiment of this application, the automobile steering device includes: an output shaft 100, which is connected to a steering wheel so that the steering wheel drives the output shaft 100 to rotate; a limiting block 200, which is fixedly connected to the end of the output shaft 100 away from the steering wheel so that the limiting block 200 rotates synchronously with the output shaft 100, and the limiting block 200 has a limiting groove 210 that extends radially along the output shaft 100; a guide post 300, the first end of which is slidably engaged with the limiting groove 210; and a guide housing 400, which is rotatably engaged with the output shaft 100, and the guide housing 400 is provided with... The guide groove 410, the first stop 420, and the second stop 430 are provided. The second end of the guide post 300 can move along the guide groove 410 and engage with the first stop 420 and the second stop 430 in two rotational directions, respectively. In this way, during the rotation of the steering wheel, the output shaft 100 drives the limiting block 200 to rotate synchronously, so that the guide post 300 moves along the limiting groove 210 and the guide groove 410 at the same time. During the movement, the guide post 300 engages with the first stop 420 and the second stop 430 to limit the rotation range of the steering wheel in two directions, thereby reducing safety hazards during vehicle operation.

[0038] like Figures 1-2 As shown, the limiting block 200 includes an annular portion and an extension portion with an integrally formed structure. The annular portion is sleeved on the output shaft 100 and is interference-fitted with the output shaft 100. The extension portion extends radially from the annular portion along the output shaft 100, and the limiting groove 210 is formed on the side of the extension portion away from the steering wheel, so that the guide post 300 reciprocates along the limiting groove 210.

[0039] like Figure 1 As shown, a cutting part 110 is provided at one end of the output shaft 100 connected to the annular portion of the limiting block 200, and the inner wall of the annular portion has a cutting surface adapted to the cutting part 110, so that the limiting block 200 and the output shaft 100 rotate synchronously. Through the cooperation between the cutting part 110 and the cutting surface of the annular portion, the torque that the limiting block 200 can withstand is increased when the guide post 300 abuts against the first stop 420 and the second stop 430, thereby increasing the torque bearing capacity of the limiting block 200 and reducing the slippage between the limiting block 200 and the output shaft 100. At the same time, the limiting cooperation between the guide post 300 and the first stop 420 and the second stop 430 is more stable, improving the end limiting capability of the limiting block 200 and further reducing safety hazards.

[0040] In some embodiments, such as Figure 1 As shown, the limiting groove 210 is a T-shaped groove, and the first end of the guide post 300 is a T-shaped structure adapted to the T-shaped groove so that the guide post 300 can move along the limiting groove 210.

[0041] In some other embodiments, the limiting groove 210 may also be a dovetail groove, and the first end of the guide post 300 may be a dovetail-shaped structure adapted to the dovetail groove. This application does not limit this embodiment.

[0042] like Figures 3-5 As shown, the guide groove 410 has a spiral structure, the first stop 420 is located at the root of the spiral guide groove 410, and the second stop 430 is located at the top of the spiral guide groove 410.

[0043] It should be noted that the root of the spiral groove is the innermost groove closest to the central axis, and the top of the spiral groove is the outermost groove furthest from the central axis, so that as the guide post 300 moves along the guide groove 410, it can be limited and engaged with the first stop 420 and the second stop 430 at the groove root and groove top positions, respectively.

[0044] In some embodiments, such as Figures 6-7 As shown, the spiral guide groove 410 rotates counterclockwise. During the rotation of the steering wheel, the first stop 420 can engage with the guide post 300 to limit the rotation during the clockwise rotation of the output shaft 100, and the second stop 430 can engage with the guide post 300 to limit the rotation during the counterclockwise rotation of the output shaft 100. The first stop 420 and the second stop 430 respectively limit the rotation range of the steering wheel during the counterclockwise and clockwise rotation.

[0045] In some other embodiments, the spiral guide groove 410 can also rotate clockwise. The first stop 420 can engage with the guide post 300 during the counterclockwise rotation of the output shaft 100, and the second stop 430 can engage with the guide post 300 during the clockwise rotation of the output shaft 100. The rotation direction of the guide groove 410 can be adjusted accordingly. This application does not limit this.

[0046] like Figure 3 As shown, the first stop 420 and the second stop 430 are both protruding from the limiting block 200 along the axial direction of the guide housing 400 to achieve limiting cooperation between the first stop 420, the second stop 430 and the guide post 300.

[0047] like Figure 5As shown, the first contact surface between the first stop block 420 and the guide post 300 is a plane, and the other side of the first stop block 420 away from the first contact surface is an inclined surface; the second contact surface between the second stop block 430 and the guide post 300 is a plane, and the other side of the second stop block 430 away from the second contact surface is an inclined surface, so that during the process of the guide post 300 contacting the first stop block 420 and the second stop block 430 respectively, the limiting effect with the guide post 300 is improved by the planar structure, so as to ensure that the steering device can be limited at the first stop block 420 and the second stop block 430.

[0048] In the steering device provided in the embodiments of this application, rubber pads are provided on the first contact surface of the first stop block 420, the second contact surface of the second stop block 430, and the side of the guide column 300 that abuts against the first contact surface and the second contact surface, so as to reduce the noise during the collision process between the guide column 300 and the first stop block 420 and the second stop block 430, buffer the steering wheel when it reaches the limit point, and improve the smoothness of the steering wheel rotation process.

[0049] Inside the guide housing 400, the first stop 420 and the second stop 430 are integrally formed by connecting plates to facilitate installation. During installation, the first stop 420 and the second stop 430 are fixed to the bottom of the guide housing 400, and both the first stop 420 and the second stop 430 extend upward from the bottom of the guide housing 400 and protrude from the guide groove 410 to improve the ease of installation.

[0050] like Figure 1 and Figure 3 As shown, the second end of the guide post 300 is a cylindrical structure that mates with the guide groove 410, in order to improve the smoothness of the guide post 300 moving along the guide groove 410 and improve the smoothness of the steering wheel rotation.

[0051] During the operation of the car steering device provided in this application embodiment, the steering wheel drives the output shaft 100 to rotate, so that the limiting block 200 rotates synchronously, and drives the guide column 300 to move along the limiting groove 210 and the spiral guide groove 410, until the guide column 300 is engaged with the first stop block 420 / second stop block 430 to limit the rotation range of the steering device and reduce safety hazards during car driving.

[0052] This application also provides a vehicle that includes the vehicle steering device described in the above embodiments.

[0053] Since the aforementioned automobile steering device has the aforementioned technical effects, and the aforementioned automobile includes the aforementioned automobile steering device, the aforementioned automobile also has the corresponding technical effects, which will not be elaborated here.

[0054] The above description of the embodiments enables those skilled in the art to make or use this application. 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 application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A car steering device, characterized in that, include: Output shaft (100), the output shaft (100) is used to connect to the steering wheel; A limiting block (200) is fixedly connected to one end of the output shaft (100) away from the steering wheel. The limiting block (200) has a limiting groove (210) that extends radially along the output shaft (100). A guide post (300), the first end of which is slidably engaged with the limiting groove (210); A guide housing (400) is rotatably coupled with the output shaft (100). The guide housing (400) is provided with a guide groove (410), a first stop (420), and a second stop (430). The second end of the guide post (300) moves along the guide groove (410) and is respectively limited and coupled with the first stop (420) and the second stop (430) in two rotational directions.

2. The automotive steering apparatus according to claim 1, characterized by The limiting block (200) includes an annular portion and an extension portion that are integrally formed. The annular portion is sleeved on the output shaft (100) and is interference-fitted with the output shaft (100). The extension extends radially along the output shaft (100), and the limiting groove (210) is formed on the side of the extension opposite to the steering wheel.

3. The automotive steering apparatus according to claim 2, characterized by The output shaft (100) has a cutting portion (110) on its circumferential side, and the inner wall of the annular portion has a cutting surface adapted to the cutting portion (110) so that the limiting block (200) rotates synchronously with the output shaft (100).

4. The automotive steering apparatus according to claim 2, characterized by The limiting groove (210) is a T-shaped groove, and the first end of the guide post (300) is a T-shaped structure adapted to the T-shaped groove; Alternatively, the limiting groove (210) may be a dovetail groove, and the first end of the guide post (300) may be a dovetail-shaped structure adapted to the dovetail groove.

5. The automobile steering device according to claim 1, characterized in that, The guide groove (410) has a spiral structure, the first stop (420) is located at the root of the guide groove (410), and the second stop (430) is located at the top of the guide groove (410).

6. The automotive steering apparatus according to claim 5, characterized by The spiral structure of the guide groove (410) rotates counterclockwise. The first stop (420) engages with the guide post (300) during the clockwise rotation of the output shaft (100), and the second stop (430) engages with the guide post (300) during the counterclockwise rotation of the output shaft (100). Alternatively, the spiral structure of the guide groove (410) rotates clockwise, the first stop (420) engages with the guide post (300) during the counterclockwise rotation of the output shaft (100), and the second stop (430) engages with the guide post (300) during the clockwise rotation of the output shaft (100).

7. The automotive steering apparatus according to claim 5, characterized by Both the first stop (420) and the second stop (430) protrude toward the limiting block (200) along the axial direction of the guide housing (400); The first contact surface between the first stop block (420) and the guide post (300) is a plane, and the other side of the first stop block (420) away from the first contact surface is an inclined surface; The second abutment surface of the second stop (430) and the guide post (300) is a plane, and the other side of the second stop (430) away from the second abutment surface is an inclined surface.

8. The automotive steering apparatus according to claim 7, characterized by Rubber pads are provided on the first abutting surface, the second abutting surface, and the side of the guide post (300) that abuts against the first abutting surface and the second abutting surface.

9. The automotive steering apparatus according to claim 5, characterized by The first stop (420) and the second stop (430) inside the guide housing (400) are integrally formed structures; Both the first stop (420) and the second stop (430) extend from the bottom of the guide housing (400) and protrude from the guide groove (410).

10. The automotive steering apparatus according to claim 1, characterized by The second end of the guide post (300) is a cylindrical structure that mates with the guide groove (410).

11. An automobile characterized by comprising: Including the vehicle steering device as described in any one of claims 1-10.

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