Counter self-locking device for a vehicle corner module, steering system and vehicle

Abstract

This utility model discloses a reverse self-locking device, a steering system, and a vehicle for a vehicle corner module, relating to the field of vehicle manufacturing technology. The reverse self-locking device includes: a base housing; a rotary input mechanism with a drive pawl; a rotary output mechanism rotatably mounted within the base housing, coaxial with the rotary input mechanism and configured to rotate synchronously with the rotary input mechanism when the rotary input mechanism rotates; and a self-locking component disposed between the drive pawl and the rotary output mechanism, configured to transmit torque from the rotary input mechanism to the rotary output mechanism along a first rotation direction or a second rotation direction, and to prevent the rotary output mechanism from transmitting reverse torque to the rotary input mechanism. The reverse self-locking device of this utility model, through the self-locking component, prevents the rotary output mechanism from transmitting reverse torque to the rotary input mechanism, achieving reverse rotation locking.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to a reverse self-locking device for a vehicle corner module, a steering system having the reverse self-locking device for the vehicle corner module, and a vehicle. Background Technology

[0002] In related technologies, most automotive steering systems employ single front axle steering and front axle steering with rear axle assistance. However, these technologies cannot achieve individual steering for each wheel and also have certain limitations on the maximum steering angle of the wheels. To solve these problems, current vehicles mainly use wheel-side kingpin steering technology. However, this technology cannot control the vehicle's forward direction when the wheels are subjected to significant external impacts, leaving room for improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a reverse self-locking device for a vehicle angle module, which can effectively transmit the driving force of the rotary input mechanism and lock in the reverse direction when the rotary output mechanism is subjected to a reverse impact force, thereby achieving controllable wheel angle.

[0004] A reverse self-locking device for a vehicle corner module according to an embodiment of the present invention includes: a base housing; a rotary input mechanism having a drive pawl; a rotary output mechanism rotatably mounted in the base housing, the rotary output mechanism being coaxial with the rotary input mechanism and configured to rotate synchronously by the drive pawl when the rotary input mechanism rotates; and a self-locking component disposed between the drive pawl and the rotary output mechanism, the self-locking component being configured to transmit torque from the rotary input mechanism to the rotary output mechanism along a first rotation direction or a second rotation direction, and to prevent the rotary output mechanism from transmitting reverse torque to the rotary input mechanism.

[0005] According to the present invention, a reverse self-locking device for a vehicle angle module is provided between the drive pawl of the rotary input mechanism and the rotary output mechanism. This allows the rotary output mechanism to be rotated and locked with the base housing after being subjected to vibration torque from the wheel end, thereby cutting off the vibration torque. Vibration torque from different directions from the wheel end can be cut off by the self-locking component, resulting in a more comprehensive cutting effect. This avoids the transmission of torque to the rotary input mechanism, thereby enabling controllable wheel angle and vehicle forward direction. The device is also simple in structure and easy to install.

[0006] According to some embodiments of the present invention, a reverse self-locking device for a vehicle corner module is provided, wherein the rotary output mechanism is provided with at least two transmission blocks distributed circumferentially, a transmission groove is formed between two adjacent transmission blocks, the drive pawl extends into the transmission groove, and the self-locking component is symmetrically disposed in the movable gap formed by the drive pawl, the transmission block and the base shell.

[0007] According to some embodiments of the present invention, a reverse self-locking device for a vehicle corner module is provided, wherein the self-locking component includes a rolling locking member and an elastic member, the rolling locking member being adapted to engage with the drive pawl, and the elastic member being retractably disposed between the rolling locking member and the transmission block and applying an elastic preload force toward the drive pawl to the rolling locking member.

[0008] When the rotary output mechanism tends to rotate relative to the rotary input mechanism, the rolling lock is pressed into the movable gap, thus locking the rotary output mechanism relative to the rotary input mechanism.

[0009] According to some embodiments of the present invention, a reverse self-locking device for a vehicle corner module is provided. The inner bottom wall of the transmission groove includes a central raised surface and two movable surfaces. The central raised surface is connected between the two movable surfaces. The rolling locking members of the two self-locking components are rolled and supported on the two movable surfaces in a corresponding manner. The width of the gap between the movable surface and the inner peripheral wall of the base shell is configured to gradually decrease towards the central raised surface. When the rolling locking member moves along the movable surface to the raised surface under the action of the elastic member, it is wedged into and locked in the movable gap.

[0010] According to some embodiments of the present invention, a reverse self-locking device for a vehicle corner module is provided, wherein the movable surface intersects with the inner end face of the transmission groove, and the two movable surfaces are symmetrically distributed at both ends of the intermediate protrusion.

[0011] According to some embodiments of the present invention, a reverse self-locking device for a vehicle corner module is provided, wherein the end face of the transmission block facing the transmission groove has a mounting hole, the elastic element is constructed as a spring, and one end of the elastic element is located in the mounting hole and the other end abuts against the rolling locking element.

[0012] According to some embodiments of the present invention, a reverse self-locking device for a vehicle corner module is provided, wherein the rotary output mechanism has a plurality of transmission grooves, the plurality of transmission grooves are spaced apart in the circumferential direction of the rotary output mechanism, and there are a plurality of drive pawls, and the plurality of drive pawls extend into the plurality of transmission grooves in a one-to-one correspondence.

[0013] And / or, the transmission groove is configured to open radially outward on the outer peripheral wall of the rotary output mechanism, and the transmission groove extends through the axial direction of the rotary output mechanism; the drive pawl is configured to protrude from the end face of the rotary input mechanism, and the drive pawl extends into the transmission groove along the axial direction of the rotary input mechanism.

[0014] The reverse self-locking device for vehicle corner modules according to some embodiments of the present invention further includes a self-locking end cover, the self-locking end cover being connected to one end of the base shell, and the rotary input mechanism being rotatably supported by the self-locking end cover.

[0015] This utility model also proposes a steering system.

[0016] The steering system according to an embodiment of the present invention includes a drive mechanism, a reduction mechanism, and a reverse self-locking device for a vehicle corner module according to any of the above embodiments. The drive mechanism is poweredly connected to the rotary input mechanism, and the reduction mechanism is poweredly connected to the rotary output mechanism.

[0017] This utility model also proposes a vehicle.

[0018] The vehicle according to the present invention includes a reverse self-locking device or steering system for the vehicle corner module of any of the above embodiments.

[0019] The steering system, the vehicle, and the aforementioned reverse self-locking device for the vehicle corner module have the same advantages over the prior art, and will not be repeated here.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the drive mechanism, deceleration mechanism, and reverse self-locking device for vehicle corner module according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the reverse self-locking device for a vehicle corner module according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the base shell of the reverse self-locking device for a vehicle corner module according to an embodiment of the present invention;

[0025] Figure 4This is a cross-sectional view (one perspective) of the reverse self-locking device for a vehicle corner module according to an embodiment of the present invention;

[0026] Figure 5 This is a cross-sectional view (another perspective) of the reverse self-locking device for a vehicle corner module according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the rotary input mechanism of the reverse self-locking device for a vehicle corner module according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram (from one perspective) of the rotating output mechanism of the reverse self-locking device for a vehicle corner module according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram (another perspective) of the rotating output mechanism of the reverse self-locking device for a vehicle corner module according to an embodiment of the present invention.

[0030] Figure label:

[0031] Reverse self-locking device 100 for vehicle corner module,

[0032] Base shell 1, fixing hole 11, installation space 12,

[0033] Rotary input mechanism 2, drive pawl 21, first bearing 22,

[0034] Rotary output mechanism 3, self-locking assembly 31, rolling locking element 311, elastic element 312, transmission block 32, mounting hole 321, transmission groove 33, intermediate raised surface 331, movable surface 332, second bearing 34.

[0035] Self-locking end cap 4, through hole 41

[0036] Drive mechanism 200, reduction mechanism 300. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The following is for reference. Figures 1-8 The present invention describes a reverse self-locking device 100 for a vehicle corner module according to an embodiment of the present invention. The reverse self-locking device 100 for a vehicle corner module can be applied to a steering system or other systems with a transmission structure. By setting a self-locking component 31 between the drive pawl 21 of the rotary input mechanism 2 and the rotary output mechanism 3, the rotary input mechanism 2 can transmit torque to the rotary output mechanism 3, and the rotary output mechanism 3 can be rotated and locked with the base shell 1 after being subjected to impact torque, so as to prevent the torque from being transmitted to the rotary input mechanism 2, thereby achieving controllable wheel angle.

[0041] like Figure 2As shown, the reverse self-locking device 100 for a vehicle corner module according to an embodiment of the present invention includes: a base housing 1, a rotary input mechanism 2, and a rotary output mechanism 3. When the reverse self-locking device 100 for a vehicle corner module is applied to the vehicle's steering system, the base housing 1 can be fixed relative to the housing of the drive mechanism 200 or the housing of the reduction mechanism 300. The rotary input mechanism 2 and the rotary output mechanism 3 can be rotatably coupled at the base housing 1. The rotary input mechanism 2 can be poweredly connected to the drive mechanism 200 of the steering system, so that the drive mechanism 200 can drive the rotary input mechanism 2 to rotate. The rotary output mechanism 3 can be poweredly connected to the reduction mechanism 300 at the wheel end, so that the rotary output mechanism 3 can drive the wheel end to rotate. Therefore, when steering the wheel, the rotary input mechanism 2 can drive the rotary output mechanism 3 to rotate, thereby driving the wheel to rotate.

[0042] The rotary input mechanism 2 is equipped with a drive pawl 21, and the rotary output mechanism 3 is rotatably mounted inside the base housing 1. The rotary input mechanism 2 is adapted to drive the rotary output mechanism 3 to rotate via the drive pawl 21 when rotating. Therefore, the rotary input mechanism 2 and the rotary output mechanism 3 can be rotatably engaged through the drive pawl 21, that is, the drive pawl 21 and the rotary output mechanism 3 achieve a circumferential limiting engagement. When the rotary input mechanism 2 rotates, the drive pawl 21 can push the rotary output mechanism 3 to rotate together, thereby realizing the output of steering driving force and achieving wheel steering control. In practical applications, if the rotary input mechanism 2 is subjected to a clockwise torque and rotates clockwise, the rotary input mechanism 2 and the rotary output mechanism 3 can be driven to rotate clockwise through the limiting engagement of the drive pawl 21. Alternatively, if the rotary input mechanism 2 is subjected to a counterclockwise torque and rotates counterclockwise, the rotary input mechanism 2 and the rotary output mechanism 3 can be driven to rotate counterclockwise through the limiting engagement of the drive pawl 21, thereby achieving individual steering for each wheel.

[0043] A self-locking assembly 31 is provided between the drive pawl 21 and the rotary output mechanism 3. When the rotary output mechanism 3 rotates relative to the rotary input mechanism 2 in a first or second direction, the self-locking assembly 31 locks the rotary output mechanism 3 to the base housing 1. In other words, when the rotary output mechanism 3 is subjected to steering driving force at the non-drive mechanism 200, such as vibration impact from the road surface at the wheel end, the self-locking assembly 31 can lock the rotary output mechanism 3 to the base housing 1, so that the rotary output mechanism 3 will not transmit the torque generated by the vibration impact to the rotary input mechanism 2, thereby cutting off the vibration torque, ensuring that the wheel angle is controllable, and preventing the wheel from rotating significantly under vibration.

[0044] In this design, the first and second directions are opposite; for example, if the first direction is clockwise and the second direction is counterclockwise, then when the rotary output mechanism 3 rotates clockwise or counterclockwise after being subjected to vibration, the self-locking component 31 will lock the base housing 1 and the rotary output mechanism 3 in rotation, stopping the rotary output mechanism 3 from rotating. This achieves reverse self-locking in different rotation directions, ensuring steering safety. Furthermore, the reverse self-locking device 100 for the vehicle corner module has a simple structure and is easy to install.

[0045] According to the present invention, the reverse self-locking device 100 for a vehicle angle module, by setting a self-locking component 31 between the drive pawl 21 of the rotary input mechanism 2 and the rotary output mechanism 3, enables the rotary input mechanism 2 to transmit torque to the rotary output mechanism 3, and enables the rotary output mechanism 3 to be rotated and locked with the base shell 1 after receiving vibration torque from the wheel end, thereby cutting off the vibration torque. Vibration torque from different directions from the wheel end can be cut off by the self-locking component 31, resulting in a more comprehensive cutting effect. This avoids the transmission of torque to the rotary input mechanism 2, thereby achieving controllable wheel angle and controllable vehicle forward direction. The device is simple in structure and easy to install.

[0046] In some embodiments, the rotary output mechanism 3 is provided with at least two transmission blocks 32 distributed in the circumferential direction. That is, the transmission blocks 32 can be set to two, three or more, and a transmission groove 33 is formed between any two adjacent transmission blocks 32. That is, the transmission groove 33 can be set to two, three or more, and the drive pawl 21 extends into the transmission groove 33.

[0047] Specifically, such as Figures 5-7 As shown, three spaced-apart transmission blocks 32 are distributed circumferentially on the outer peripheral wall of the rotary output mechanism 3, and a transmission groove 33 is formed between two adjacent transmission blocks 32. Thus, the outer peripheral wall of the rotary output mechanism 3 has three transmission grooves 33. At the same time, the rotary input mechanism 2 is provided with three drive claws 21, so that the three drive claws 21 extend into the three transmission grooves 33 in a one-to-one correspondence. This allows the drive claws 21 to circumferentially limit and press against the transmission blocks 32, which is beneficial for the rotary input mechanism 2 to transmit the driving force of the drive mechanism 200 to the rotary output mechanism 3 through the transmission blocks 32 via the drive claws 21, thereby realizing torque transmission.

[0048] Furthermore, the self-locking components 31 are symmetrically arranged in the movable gap formed by the drive pawl 21, the transmission block 32, and the base shell 1. That is, each drive pawl 21 can be provided with two self-locking components 31, and the two self-locking components 31 are symmetrically distributed. Specifically, for example... Figure 5 and Figure 8As shown, each transmission groove 33 is provided with two self-locking components 31. The two self-locking components 31 are symmetrically arranged in the movable gap formed by the drive pawl 21, the transmission block 32 and the base shell 1, so as to drive the pawl 21 and the two adjacent transmission blocks 32 to engage with each other. Thus, the rotary input mechanism 2 can transmit torque to the rotary output mechanism 3 through the engagement of the drive pawl 21 and the two self-locking components 31, thereby realizing individual steering of each wheel. The rotary output mechanism 3 can be locked to the base shell 1 in two opposite directions through the engagement of the drive pawl 21 and the two self-locking components 31, thereby cutting off the vibration torque on the rotary output mechanism 3 and preventing the vibration torque from being transmitted to the rotary input mechanism 2, thus realizing the controllability of the vehicle's wheel angle.

[0049] Therefore, multiple drive pawls 21 and transmission grooves 33 can be configured, and multiple sets of self-locking components 31 can also be configured. This allows the rotary input mechanism 2 and the rotary output mechanism 3 to be reverse locked or transmit torque in the forward direction at multiple positions in the circumferential direction, which helps to improve the reliability of reverse locking or forward torque transmission and avoids the failure of reverse locking or forward torque transmission due to structural damage at a single position.

[0050] In some embodiments, the self-locking assembly 31 includes a rolling locking member 311 and an elastic member 312. The rolling locking member 311 is adapted to fit against the drive pawl 21, that is, the outer peripheral wall of the rolling locking member 311 can abut against the outer outer wall of the drive pawl 21. The elastic member 312 is telescopically disposed between the rolling locking member 311 and the transmission block 32 and applies an elastic preload force toward the drive pawl 21 to the rolling locking member 311. Thus, when the drive pawl 21 actively pushes the rolling locking member 311 toward the transmission block 32, the elastic member 312 is compressed and transmits the driving force to the transmission block 32, so that the transmission block 32 drives the rotary output mechanism 3 to rotate, thereby realizing the output of steering force. Furthermore, by providing two self-locking assemblies 31, the drive pawl 21 can drive the corresponding rolling locking member 311 and elastic member 312 of the self-locking assembly 31 to transmit steering force when moving in two opposite directions, which is beneficial for achieving accurate steering.

[0051] In actual design, such as Figure 2 and Figure 5 As shown, the elastic element 312 can be constructed as a spring, and the rolling locking element 311 can be constructed as a cylindrical roller. One end of the spring presses against the transmission block 32 and the other end presses against the outer peripheral wall of the cylindrical roller. At the same time, the outer peripheral wall of the cylindrical roller abuts against the outer side wall of the drive pawl 21, which facilitates the transmission of steering force through the elastic element 312 and the cylindrical roller. The structure is simple and easy to install.

[0052] When the rotary output mechanism 3 tends to rotate relative to the rotary input mechanism 2, the rolling locking member 311 is pressed into the movable gap, thus locking the rotary output mechanism 3 relative to the rotary input mechanism 2. Specifically, when the rotary output mechanism 3 tends to rotate relative to the rotary input mechanism 2, the rolling locking member 311 on the drive pawl 21 side, under the action of the elastic member 312, has a circumferential movement tendency in the same direction as the drive pawl 21, thereby pressing the rolling locking member 311 into the movable gap. In other words, after the rotary output mechanism 3 is subjected to external vibration and impact, the rolling locking member 311 can lock the rotary output mechanism 3 to the base housing 1, preventing the rotary output mechanism 3 from continuing to rotate and transmitting torque to the rotary input mechanism 2, thereby achieving controllable wheel angles for the vehicle.

[0053] It should be noted that the rolling locking element 311 can be constructed as a cylindrical roller, a spherical roller, or a rolling element of other shapes. Furthermore, the number of elastic elements 312 and rolling locking elements 311 in each self-locking assembly 31 can be more than one, including two, three, or more, to enhance the locking effect.

[0054] In some embodiments, the inner bottom wall of the transmission groove 33 includes a central raised surface 331 and two movable surfaces 332, with the central raised surface 331 connecting the two movable surfaces 332. For example... Figure 7 and Figure 8 As shown, the transmission groove 33 has two opposing inner sidewalls, that is, the sides of the two transmission blocks 32 facing each other are constructed as the two inner sidewalls of the transmission groove 33. At the same time, the transmission groove 33 has an inner bottom wall connected between the two inner sidewalls, so that the inner bottom wall and the two inner sidewalls together define the transmission groove 33.

[0055] The two movable surfaces 332 are respectively connected to the two ends of the intermediate protrusion 331, and are also connected to the two inner sidewalls of the transmission groove 33. The two movable surfaces 332 can be configured to be symmetrical with respect to the centerline of the intermediate protrusion 331. The rolling locking members 311 of the two self-locking components 31 are rolled and supported on the two movable surfaces 332 in a one-to-one correspondence. That is, each rolling locking member 311 is rolled and supported on its corresponding movable surface 332 and located between its corresponding elastic member 312 and the drive pawl 21. Thus, the rotary input mechanism 2 can transmit torque to the rotary output mechanism 3 in the first or second rotational direction through the drive pawl 21 and the two self-locking components 31. When the rolling locking member 311 approaches the intermediate protrusion 331, it is wedged in and locked within the movable gap, i.e., the rolling locking member 311 is locked between the movable surface 332 and the base shell 1.

[0056] It should be noted that during actual installation, the drive pawl 21 is located between the central raised surface 331 and the inner peripheral wall of the base shell 1. Simultaneously, two rolling locking members 311 are located between the two movable surfaces 332 and the inner peripheral wall of the base shell 1, respectively. The width of the gap between the movable surfaces 332 and the inner peripheral wall of the base shell 1 is designed to gradually decrease towards the central raised surface 331. Thus, when the rolling locking member 311 moves along the movable surface 332 towards the raised surface 331 under the action of the elastic member 312, it is wedged and locked within the movable gap. When the rotary output mechanism 3 is subjected to vibration impact from the road surface at the wheel end, the rolling locking member 311 can achieve rotational locking of the rotary output mechanism 3. Therefore, after the rotary output mechanism 3 is locked, it cannot continue to rotate and transmit torque to the rotary input mechanism 2, thereby achieving controllable wheel angle.

[0057] In some embodiments, the movable surface 332 intersects with the inner end face of the transmission groove 33, and the two movable surfaces 332 are symmetrically distributed at both ends of the intermediate protrusion 331. The inner end face of the transmission groove 33 can be configured to be parallel to the radial direction of the rotary output mechanism 3 or to form a small angle with the radial direction of the rotary output mechanism 3. Thus, after the movable surface 332 is configured to intersect with the inner end face of the transmission groove 33, the width of the gap between the movable surface 332 and the inner peripheral wall of the base shell 1 can be more easily configured to gradually decrease towards the intermediate protrusion 331. In this way, when the elastic member 312 presses against the rolling locking member 311 to press it into the movable gap formed by the drive pawl 21, the transmission block 32 and the base shell 1, the rolling locking member 311 can accurately and effectively lock between the movable surface 332 and the inner peripheral wall of the base shell 1 to achieve rotational locking.

[0058] Among them, a limiting protrusion is formed at the connection between the movable surface 332 and the intermediate protruding surface 331, such as Figure 5 As shown, by forming an angle between the central protruding surface 331 and the two movable surfaces 332, the inner bottom wall of the transmission groove 33 can be constructed as a structure that protrudes outward from the middle and is concave at both ends. That is, a limiting protrusion is formed at the connection between the central protruding surface 331 and the two movable surfaces 332, so that the rolling locking members 311 of the two self-locking components 31 can be locked between the limiting protrusion and the inner peripheral wall of the base shell 1. Thus, the rotational output mechanism 3 and the base shell 1 can be rotated and locked, thereby preventing the vibration torque from being transmitted to the rotational input mechanism 2.

[0059] In some embodiments, the end face of the transmission block 32 facing the transmission groove 33 has a mounting hole 321, the elastic element 312 is constructed as a spring, and one end of the elastic element 312 is located in the mounting hole 321 and the other end abuts against the rolling locking element 311. In this way, a part of the spring is located in the mounting hole 321, realizing the positioning fit between the spring and the transmission block 32, so that the spring can extend and retract along its length direction in the mounting hole 321 without the spring coming out of the mounting hole 321, ensuring the installation stability of the elastic element 312. At the same time, the spring and the rolling locking element 311 realize the circumferential limiting fit, thereby realizing the transmission of torque from the rotary input mechanism 2 to the rotary output mechanism 3, or the rotational locking between the rotary output mechanism 3 and the base shell 1.

[0060] Specifically, such as Figure 2 and Figure 5 As shown, each of the two adjacent transmission blocks 32 has a mounting hole 321 on its side facing each other, so as to install and cooperate with the elastic element 312 of the two self-locking components 31 corresponding to the drive pawl 21. This allows the elastic element 312 to push the rolling locking element 311 to be limited and stopped between the movable surface 332 and the inner peripheral wall of the base shell 1. When the rotary input mechanism 2 is subjected to external force, the drive pawl 21 can drive the rotary output mechanism 3 to rotate through the self-locking component 31. At the same time, when the rotary output mechanism 3 rotates, the rolling locking element 311 can lock the rotary output mechanism 3. The structure is simple and the function is stable.

[0061] In some embodiments, the rotary output mechanism 3 has a plurality of transmission grooves 33, which are spaced apart in the circumferential direction of the rotary output mechanism 3; that is, the number of transmission grooves 33 can be two, three, or more. Figure 7 As shown, the rotary output mechanism 3 has three transmission slots 33, which are spaced apart in the circumferential direction. At the same time, there are multiple drive claws 21, which extend into the multiple transmission slots 33 in a one-to-one correspondence. That is, the rotary input mechanism 2 has the same number of drive claws 21 as the transmission slots 33 in the circumferential direction. The drive claws 21 can extend into the transmission slots 33 in a one-to-one correspondence. Thus, the drive claws 21 and the transmission block 32 achieve circumferential limiting cooperation and uniform force distribution, which helps to improve the stability of the structure.

[0062] And / or, in some embodiments, the transmission groove 33 is configured to open radially outward on the outer peripheral wall of the rotary output mechanism 3, and the transmission groove 33 extends axially through the rotary output mechanism 3, that is, the transmission groove 33 is open at both ends in the axial direction of the rotary input mechanism 2. Meanwhile, as Figure 7As shown, the drive pawl 21 is constructed to protrude from the end face of the rotary input mechanism 2, and extends axially into the transmission groove 33 along the rotary input mechanism 2. In other words, when the rotary input mechanism 2 and the rotary output mechanism 3 are rotated together, the rotary input mechanism 2 and the rotary output mechanism 3 can be axially distributed, and the drive pawl 21 on the rotary input mechanism 2 and the transmission groove 33 on the rotary output mechanism 3 can be axially aligned. Then, the rotary input mechanism 2 and the rotary output mechanism 3 can be axially brought closer together, so that the drive pawl 21 extends into the transmission groove 33, realizing the circumferential transmission engagement between the drive pawl 21 and the transmission block 32, which is beneficial for transmitting steering torque.

[0063] In some embodiments, the reverse self-locking device 100 for the vehicle corner module further includes a self-locking end cap 4, which is connected to one end of the base housing 1. The rotary input mechanism 2 is rotatably supported on the self-locking end cap 4. That is, the rotary input mechanism 2 is rotatably supported on the self-locking end cap 4, such as by rotating the rotary input mechanism 2 on the self-locking end cap 4 via a first bearing 22, so that the rotary input mechanism 2 can rotate relative to the self-locking end cap 4 and the base housing 1. At the same time, the rotary output mechanism 3 is rotatably supported on the base housing 1, such as by rotating the rotary output mechanism 3 on the base housing 1 via a second bearing 34, so that the rotary output mechanism 3 can rotate relative to the base housing 1 and the self-locking end cap 4.

[0064] The self-locking end cap 4 is connected to the base shell 1, and the connection between the self-locking end cap 4 and the base shell 1 can be by bolts, snap-fit, or other methods. Specifically, for example... Figure 3 As shown, the base housing 1 has multiple fixing holes 11, and the self-locking end cover 4 has multiple through holes 41 on its circumference. Multiple bolts can be threaded through the through holes 41 one-to-one and connected to the fixing holes 11, thereby fixing the base housing 1 and the self-locking end cover 4 together. Also, as... Figure 3 As shown, the base shell 1 forms an installation space 12, and after the self-locking end cap 4 is installed on the base shell 1, it can partially cover the installation space 12, and as... Figure 4 As shown, after connecting the rotary input mechanism 2 and the rotary output mechanism 3, the rotary input mechanism 2 and the rotary output mechanism 3 can rotate within the mounting space 12 of the base housing 1 to achieve shielding and sealing of the transmission position, ensuring the reliability of transmission and reverse self-locking.

[0065] This utility model also proposes a steering system.

[0066] The steering system according to an embodiment of the present invention includes a reverse self-locking device 100 for a vehicle corner module according to any of the above embodiments. The steering system further includes a drive mechanism 200 and a reduction mechanism 300, and the base housing 1 can be fixed relative to the housing of the drive mechanism 200 or the housing of the reduction mechanism 300. Specifically, as... Figure 1 As shown, the drive mechanism 200 is powered by the rotary input mechanism 2, and the reduction mechanism 300 is powered by the rotary output mechanism 3. Thus, the drive mechanism 200 can transmit torque to the rotary input mechanism 2. By setting a self-locking component 31 between the drive pawl 21 of the rotary input mechanism 2 and the rotary output mechanism 3, the rotary input mechanism 2 can transmit torque to the rotary output mechanism 3. When the wheel is subjected to external impact, the reduction system can transfer torque to the rotary output mechanism 3 through the reduction mechanism 300. It can also lock the rotation of the base shell 1 and the rotary output mechanism 3 through the self-locking component 31, cutting off the vibration torque transmitted by the rotary output mechanism 3, thereby achieving controllable wheel angle.

[0067] This utility model also proposes a vehicle.

[0068] The vehicle according to the embodiments of this utility model includes the reverse self-locking device 100 for the vehicle corner module or the steering system of any of the above embodiments. The vehicle of this utility model, by employing a wheel-side kingpin design with the reverse self-locking device 100 for the vehicle corner module, can achieve individual steering control of each wheel and increase the maximum steering angle of the wheel. Furthermore, the wheel angle is controllable, effectively controlling the vehicle's forward direction. It also features a simple structure, convenient installation, small size and weight, which helps improve the vehicle's driving performance.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A reverse self-locking device for a vehicle corner module, characterized in that, include: Base shell (1); A rotary input mechanism (2) is provided with a drive pawl (21); A rotary output mechanism (3) is rotatably mounted inside the base housing (1). The rotary output mechanism (3) is coaxial with the rotary input mechanism (2) and is configured to rotate synchronously by the drive pawl (21) when the rotary input mechanism (2) rotates. A self-locking assembly (31) is disposed between the drive pawl (21) and the rotary output mechanism (3). The self-locking assembly (31) is configured to allow the rotary input mechanism (2) to transmit torque to the rotary output mechanism (3) in a first rotational direction or a second rotational direction, and to prevent the rotary output mechanism (3) from transmitting reverse torque to the rotary input mechanism (2).

2. The reverse self-locking device for a vehicle corner module according to claim 1, characterized in that, The rotary output mechanism (3) is provided with at least two transmission blocks (32) distributed in the circumferential direction, and a transmission groove (33) is formed between two adjacent transmission blocks (32). The drive pawl (21) extends into the transmission groove (33), and the self-locking component (31) is symmetrically provided in the movable gap formed by the drive pawl (21), the transmission block (32), and the base shell (1).

3. The reverse self-locking device for a vehicle corner module according to claim 2, characterized in that, The self-locking assembly (31) includes a rolling locking member (311) and an elastic member (312). The rolling locking member (311) is adapted to engage with the drive pawl (21). The elastic member (312) is telescopically disposed between the rolling locking member (311) and the transmission block (32) and applies an elastic preload force toward the drive pawl (21) to the rolling locking member (311). When the rotary output mechanism (3) tends to rotate relative to the rotary input mechanism (2), the rolling locking member (311) is pressed into the movable gap, and the rotary output mechanism (3) is rotated relative to the rotary input mechanism (2).

4. The reverse self-locking device for a vehicle corner module according to claim 3, characterized in that, The inner bottom wall of the transmission groove (33) includes a central raised surface (331) and two movable surfaces (332). The central raised surface (331) is connected between the two movable surfaces (332). The rolling locking members (311) of the two self-locking components (31) are rolled and supported on the two movable surfaces (332) in a corresponding manner. The width of the gap between the movable surface (332) and the inner peripheral wall of the base shell (1) is designed to gradually decrease towards the central raised surface (331). When the rolling locking member (311) moves along the movable surface (332) towards the raised surface (331) under the action of the elastic member (312), it is wedged in and locked in the movable gap.

5. The reverse self-locking device for a vehicle corner module according to claim 4, characterized in that, The movable surface (332) intersects with the inner end face of the transmission groove (33), and the two movable surfaces (332) are symmetrically distributed at both ends of the intermediate protrusion (331).

6. The reverse self-locking device for a vehicle corner module according to claim 3, characterized in that, The transmission block (32) has a mounting hole (321) on its end face facing the transmission groove (33). The elastic element (312) is constructed as a spring, with one end of the elastic element (312) located in the mounting hole (321) and the other end pressing against the rolling locking element (311).

7. The reverse self-locking device for a vehicle corner module according to claim 2, characterized in that, The rotary output mechanism (3) has a plurality of transmission grooves (33) which are spaced apart in the circumferential direction of the rotary output mechanism (3). There are a plurality of drive claws (21), and the plurality of drive claws (21) extend into the plurality of transmission grooves (33) in a one-to-one correspondence. And / or, the transmission groove (33) is configured to open radially outward on the outer peripheral wall of the rotary output mechanism (3), and the transmission groove (33) extends through the axial direction of the rotary output mechanism (3), and the drive pawl (21) is configured to protrude from the end face of the rotary input mechanism (2), and the drive pawl (21) extends into the transmission groove (33) along the axial direction of the rotary input mechanism (2).

8. The reverse self-locking device for a vehicle corner module according to claim 1, characterized in that, It also includes a self-locking end cap (4), which is connected to one end of the base shell (1), and the rotary input mechanism (2) is rotatably supported by the self-locking end cap (4).

9. A steering system, characterized in that, It includes a drive mechanism (200), a deceleration mechanism (300), and a reverse self-locking device for a vehicle corner module according to any one of claims 1-8, wherein the drive mechanism (200) is poweredly connected to the rotary input mechanism (2), and the deceleration mechanism (300) is poweredly connected to the rotary output mechanism (3).

10. A vehicle, characterized in that, Includes the reverse self-locking device for vehicle corner modules as described in any one of claims 1-8 or the steering system as described in claim 9.

Images