CN219927661U

CN219927661U - Wheel type braking device and steering system

Info

Publication number: CN219927661U
Application number: CN202321652495.7U
Authority: CN
Inventors: 王时康; 王勇
Original assignee: Guizhou Hansikai Intelligent Technology Co ltd
Current assignee: Guizhou Hansikai Intelligent Technology Co ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-10-31
Anticipated expiration: 2033-06-27

Abstract

The utility model provides a wheel type braking device, which comprises a braking component. The braking component comprises a mounting piece, a rotating piece, a driving piece and a braking piece, wherein the mounting piece is assembled on the rim body, the rotating piece and the driving piece are both connected to the mounting piece, the driving piece is used for driving the rotating piece to rotate relative to the mounting piece, the braking piece is fixedly connected to one end, close to the rim body, of the rotating piece, and the braking component is in a braking state that the braking piece is abutted to the rim body and a loosening state that the braking piece is separated from the rim body. The utility model provides a steering system which comprises at least two wheel type braking devices, steering connecting pieces and a steering device, wherein the wheel type braking devices are respectively provided with the steering connecting pieces, and the steering device is arranged between the steering connecting pieces and is configured to drive the wheel type braking devices to steer with a rim main body through the steering connecting pieces. The wheel type braking device provided by the utility model greatly reduces the installation difficulty.

Description

Wheel type braking device and steering system

Technical Field

The utility model belongs to the technical field of braking equipment, and particularly relates to a wheel type braking device and a steering system.

Background

In-wheel motors are typically braked by disc brakes. When the disc brake is mounted on the in-wheel motor, it is necessary to disassemble the in-wheel motor housing and drill holes in the motor housing. When the hub motor is disassembled, in order to ensure that parts such as the inner side coil of the hub motor are not damaged, the hub motor needs to be disassembled in a dust-free environment. Because the size of the fixing bolt on the motor shell is fine, the fixing bolt is easy to break, and the taking-out difficulty is high. In addition, in order to ensure that the motor shell and the brake disc of the disc brake have sufficient installation space, a flange plate needs to be installed on the motor shell, and the requirement of the hub motor on the concentricity of the flange plate is high, so that the requirement of the flange plate on the machining precision is high, and the machining difficulty of the flange plate is increased. In summary, the difficulty of installation is great when installing the disc brake.

Disclosure of Invention

The embodiment of the utility model aims to provide a wheel type braking device and a steering system, which are used for solving the technical problem that a wheel hub motor is difficult to install the braking device in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: there is provided a wheel brake device comprising:

the braking assembly comprises a mounting piece, a rotating piece, a driving piece and a braking piece, wherein the mounting piece is assembled on the rim main body, the rotating piece and the driving piece are both connected with the mounting piece, the output end of the driving piece is fixedly connected with the rotating piece and is used for driving the rotating piece to rotate relative to the mounting piece, the braking piece is fixedly connected with one end, close to the rim main body, of the rotating piece, the braking assembly is provided with a braking state, in which the braking piece is abutted to the rim main body, and a loosening state, in which the braking piece is separated from the rim main body, and the braking assembly is configured to be switched into a braking state or a loosening state after the rotating piece rotates relative to the mounting piece.

Optionally, the mounting piece includes first installation main part and second installation main part, first installation main part is assembled in the rim main part, the second installation main part bend connect in first installation main part, the rotor rotationally assemble in the second installation main part.

Optionally, the second installation main part includes first installation department, second installation department and third installation department, first installation department bend connect in first installation main part, second installation department bend connect in first installation department, third installation department connect in first installation department with between the second installation department, the rotating member hinge in third installation department, the driving piece is located first installation department is kept away from the one end of first installation main part.

Optionally, the driving piece includes first fixed part, second fixed part and drive part, first fixed part install in rotate the piece, second fixed part spiro union in the installed part, drive part wears to locate second fixed part, and with first fixed part fixed connection.

Optionally, the driving piece further includes an elastic structure, and the elastic structure is sleeved on the driving portion and abuts between the first fixing portion and the second fixing portion.

Optionally, the second fixing portion includes an adjusting structure and a fixing structure, the adjusting structure is rotatably assembled to the mounting member, the fixing structure is fixedly connected to the adjusting structure, and the driving portion is disposed through the fixing structure and is capable of moving in the fixing structure.

Optionally, the driving part comprises a driving motor and a flexible connecting strip, and the flexible connecting strip is fixedly connected between the driving motor and the first fixing part and penetrates through the fixing structure.

Optionally, a distance between the first fixing portion and the rotation axis of the rotation member is greater than a distance between the braking member and the rotation axis of the rotation member.

The utility model also provides a steering system comprising at least two wheel-type braking devices, two steering connecting pieces and a steering gear, wherein the wheel-type braking devices are respectively provided with the steering connecting pieces, and the steering gear is assembled between the steering connecting pieces.

Optionally, the steering connector comprises a first connector and at least two second connectors, the first connector is hinged to the mounting member, and the at least two second connectors are both hinged to the mounting member and are arranged at intervals.

The wheel type braking device provided by the utility model has the beneficial effects that:

according to the wheel type braking device provided by the embodiment of the utility model, the braking component is assembled on the rim main body, and the shell of the rim main body does not need to be disassembled in the installation process, so that the wheel type braking device does not need to be operated in a dust-free environment, and the installation difficulty is greatly reduced. In addition, under the joint cooperation of the mounting piece, the rotating piece, the driving piece and the braking piece, the braking component can be switched between a braking state and a loosening state, so that the working state of the rim main body can be controlled, the operation is convenient, and the convenience in use is improved.

The steering system provided by the utility model has the beneficial effects that:

according to the steering system provided by the embodiment of the utility model, when the steering of the rim main bodies is required to be controlled, the steering device drives the two rim main bodies to rotate through the two steering connecting pieces, and the rim main bodies can move towards different directions.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of the whole structure of a wheel type brake device according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a top view of a brake assembly of a wheel brake apparatus according to an embodiment of the present utility model in a relaxed state;

fig. 4 is a top view of a brake assembly of a wheel brake device according to an embodiment of the present utility model in a braked state;

fig. 5 is a partial structural perspective view of a wheel type brake device according to an embodiment of the present utility model;

fig. 6 is a perspective view of a mounting member of a wheel brake device according to an embodiment of the present utility model;

FIG. 7 is an enlarged view of a portion of FIG. 1 at C;

fig. 8 is a partial enlarged view at B in fig. 5.

Wherein, each reference sign in the figure:

1. a rim body;

2. a brake assembly; 21. a mounting member; 211. a first mounting body; 212. a second mounting body; 2121. a first mounting portion; 2122. a second mounting portion; 2123. a third mounting portion; 22. a rotating member; 23. a driving member; 231. a first fixing portion; 232. a second fixing portion; 2321. a fixed structure; 2322. an adjustment structure; 233. a driving section; 2331. a driving motor; 2332. a flexible connecting strip; 2333. a protective sleeve; 234. an elastic structure; 24. a brake member;

3. a steering linkage; 31. a first connector; 32. and a second connecting piece.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Based on the above, the embodiment of the utility model provides a wheel type braking device and a steering system, wherein the wheel type braking device is arranged on one side of a rim body, so that the mounting difficulty is reduced.

As shown in fig. 1 to 4, an embodiment of the present utility model provides a wheel brake apparatus including a brake assembly 2. The brake assembly 2 includes a mounting member 21, a rotating member 22, a driving member 23 and a braking member 24, the mounting member 21 is assembled to the rim body 1, the rotating member 22 and the driving member 23 are both connected to the mounting member 21, an output end of the driving member 23 is fixedly connected to the rotating member 22 and is used for driving the rotating member 22 to rotate relative to the mounting member 21, the braking member 24 is fixedly connected to an end of the rotating member 22 near the rim body 1, the brake assembly 2 has a braking state in which the braking member 24 abuts against the rim body 1 and a releasing state in which the braking member 24 is separated from the rim body 1, and the brake assembly 2 is configured to be switched to the braking state or the releasing state after the rotating member 22 rotates relative to the mounting member 21.

Specifically, the mounting member 21 is fitted to the rim body 1 when the brake assembly 2 is mounted to the rim body 1. When the mount 21 is assembled to the rim body 1, it is not necessary to disassemble the housing of the rim body 1. The rotating member 22 and the driving member 23 are mounted on the mounting member 21, and finally the braking member 24 is mounted on the rotating member 22.

When the device is used, when the rim body 1 needs to be braked, the driving piece 23 drives the rotating piece 22 to rotate, the rotating piece 22 drives the braking piece 24 to rotate towards the rim body 1, so that the rotating piece 22 is abutted against the rim body 1, the rim body 1 stops rotating under the action of the braking piece 24, and the braking assembly 2 is in a braking state. The driving member 23 drives the rotating member 22 to rotate back to the rim body 1, and the rotating member 22 drives the braking member 24 to rotate back to the rim body 1, so that the rotating member 22 is separated from the rim body 1 to release the braking state of the rim body 1, and the rim body 1 can rotate relative to the mounting member 21, and the braking assembly 2 is in a loose state.

According to the wheel type braking device provided by the utility model, the braking component 2 is assembled on the rim main body 1, and the shell of the rim main body 1 does not need to be disassembled in the installation process, so that the wheel type braking device does not need to be operated in a dust-free environment, and the installation difficulty is greatly reduced. In addition, under the cooperation of the mounting member 21, the rotating member 22, the driving member 23 and the braking member 24, the braking assembly 2 can be switched between a braking state and a relaxed state, so that the working state of the rim main body 1 can be controlled, the operation is convenient, and the convenience of use is improved.

Alternatively, the stopper 24 is provided as a flexible material such as rubber, silicone, or the like.

In one embodiment of the present utility model, referring to fig. 2 and 5, the mounting member 21 includes a first mounting body 211 and a second mounting body 212, the first mounting body 211 is assembled to the rim body 1, the second mounting body 212 is bent and connected to the first mounting body 211, and the rotating member 22 is rotatably assembled to the second mounting body 212.

Here, the "bending connection" described above and below means that an included angle is formed between the first mounting body 211 and the second mounting body 212.

Here, the present embodiment is described by taking the example in which the angle between the first mounting body 211 and the second mounting body 212 is set to 90 °. Of course, in other embodiments, the included angle between the first mounting body 211 and the second mounting body 212 may be set to 91 °, 92 °, 93 °, … … °, 179 ° or other angles, which are not limited herein.

In this way, the first mounting body 211 is bent and connected with the second mounting body 212, and the rotating member 22 is assembled to the second mounting body 212. This can increase the angle between the second mounting body 212 and the rim body 1 to ensure that the turning member 22 has sufficient turning space to prevent the rim body 1 from interfering with the turning member 22.

In one embodiment of the present utility model, referring to fig. 2, 5 and 6 together, the second mounting body 212 includes a first mounting portion 2121, a second mounting portion 2122 and a third mounting portion 2123, the first mounting portion 2121 is bent and connected to the first mounting body 211, the second mounting portion 2122 is bent and connected to the first mounting portion 2121, the third mounting portion 2123 is connected between the first mounting portion 2121 and the second mounting portion 2122, the rotating member 22 is hinged to the third mounting portion 2123, and the driving member 23 is disposed at an end of the first mounting portion 2121 away from the first mounting body 211.

So set up, the rotor 22 rotatably assembles in the third mounting portion 2123, and the driver 23 locates in the first mounting portion 2121, so that the rotor 22 is installed between the driver 23 and the rim body 1, and the driver 23 is convenient to drive the rotor 22 to rotate. In addition, the driving member 23 is disposed at an end of the first mounting portion 2121 away from the first mounting body 211, so that a distance between the driving member 23 and a rotation axis of the rotating member 22 can be increased, and the driving member 23 is facilitated to further drive the rotating member 22 to rotate according to a lever principle, so that convenience in use is improved. In addition, the first mounting portion 2121, the second mounting portion 2122 and the third mounting portion 2123 enclose to form a triangle structure, which is compact and has good connection stability.

Alternatively, the first mounting portion 2121, the second mounting portion 2122, and the third mounting portion 2123 are each provided in a plate-like structure or a rod-like structure.

In one embodiment of the present utility model, referring to fig. 2, 3 and 7, the driving member 23 includes a first fixing portion 231, a second fixing portion 232 and a driving portion 233, the first fixing portion 231 is mounted on the rotating member 22, the second fixing portion 232 is screwed to the mounting member 21, and the driving portion 233 is penetrating the second fixing portion 232 and is fixedly connected to the first fixing portion 231.

Specifically, the driving portion 233 drives the first fixing portion 231 to move toward the second fixing portion 232, and the rotating member 22 rotates toward the rim body 1 under the action of the first fixing portion 231, so that the braking member 24 can be driven to rotate toward the rim body 1 until the braking member 24 abuts against the rim body 1. When the brake assembly 2 is switched from the braking state to the releasing state, the driving portion 233 drives the first fixing portion 231 to move back to the second fixing portion 232, and the rotating member 22 rotates back to the rim body 1 under the action of the first fixing portion 231, so that the brake member 24 can be driven to rotate back to the rim body 1 until the brake member 24 is separated from the rim body 1.

So arranged, the turning piece 22 can be turned towards or away from the rim body 1 by the first fixing portion 231 and the driving portion 233, so that the brake assembly 2 can be switched between a braking state and a relaxed state. The second fixing portion 232 can position the driving portion 233, prevent the driving portion 233 from moving relative to the mounting member 21 during operation, prevent a partial driving force applied to the first fixing portion 231 by the driving portion 233 from being lost, and facilitate the driving portion 233 to drive the first fixing portion 231 to move.

In an embodiment of the present utility model, referring to fig. 2, 5 and 8, the driving member 23 further includes an elastic structure 234, and the elastic structure 234 is sleeved on the driving portion 233 and abuts between the first fixing portion 231 and the second fixing portion 232.

Specifically, an end of the elastic structure 234 near the first fixing portion 231 abuts against the first fixing portion 231, and an end near the second fixing portion 232 abuts against the second fixing portion 232. When the brake assembly 2 is switched from the released state to the braked state, the driving part 233 drives the first fixing part 231 to move toward the second fixing part 232, and at this time, the elastic structure 234 is compressed and stores elastic potential energy. When the brake assembly 2 is switched from the braking state to the releasing state, the driving portion 233 drives the first fixing portion 231 to move away from the second fixing portion 232, and at this time, the elastic structure 234 stretches and releases elastic potential energy to drive the first fixing portion 231 to move away from the second fixing portion 232.

Thus, when the brake assembly 2 is switched from the braking state to the releasing state, the elastic structure 234 can act on the first fixing portion 231 by the stored elastic potential energy and drive the first fixing portion 231 to move away from the second fixing portion 232, which is beneficial to improving convenience of use.

Optionally, the elastic structure 234 is provided as a spring or a leaf spring.

In an embodiment of the present utility model, referring to fig. 2, 7 and 8, the second fixing portion 232 includes an adjusting structure 2322 and a fixing structure 2321, the adjusting structure 2322 is rotatably assembled to the mounting member 21, the fixing structure 2321 is fixedly connected to the adjusting structure 2322, and the driving portion 233 is penetrating the fixing structure 2321 and can move in the fixing structure 2321.

So set up, adjust structure 2322 can be according to the practical application demand to make adjust structure 2322 rotatory relative installed part 21, thereby drive fixed knot structure 2321 and rotate relative installed part 21, so that fixed knot structure 2321 just faces first fixed part 231. In this way, the driving part 233 can always face the first fixing part 231, so that the driving part 233 is prevented from losing part of driving force due to the bending arrangement of the driving part 233 and the fixing structure 2321, and the driving part 233 is facilitated to drive the first fixing part 231 to move.

Optionally, the adjusting structure 2322 is provided as a screw, and is screwed with the mounting 21; the fixed structure 2321 is configured as a screw, and is disposed through along an axial direction of the screw, and is screwed with the adjusting structure 2322.

So set up, adjust structure 2322 spiro union in mounting 21, through rotatory adjust structure 2322, can drive fixed structure 2321 rotatory to can make fixed structure 2321 just to first fixed part 231. The fixing structure 2321 is screwed to the head of the adjusting structure 2322 and penetrates through the fixing structure 2322, so that the flexible connection strip 2332 can be arranged on the adjusting structure 2322 in a penetrating mode.

Optionally, the adjusting structure 2322 is configured as a rotating shaft (not shown in the drawing), the rotating shaft is disposed through the first mounting portion 2121 and can rotate relative to the first mounting portion 2121, a threaded hole (not shown in the drawing) is formed in the rotating shaft, one end, away from the threaded hole, of the rotating shaft is fixedly connected with a limiting block, the first mounting portion 2121 is located between the threaded hole and the limiting block, the fixing structure 2321 is configured as a screw rod, and the screw rod is disposed through along the axial direction of the screw rod, and is screwed into the threaded hole.

In one embodiment of the present utility model, referring to fig. 7, the driving part 233 includes a driving motor 2331 and a flexible connection bar 2332, and the flexible connection bar 2332 is fixedly connected between the driving motor 2331 and the first fixing part 231.

Specifically, when the brake assembly 2 is switched from the released state to the braked state, the driving motor 2331 applies a pulling force to the flexible connection bar 2332, and the flexible connection bar 2332 can pull the first fixing portion 231 toward the second fixing portion 232. When the brake assembly 2 is switched from the braking state to the releasing state, the driving motor 2331 removes the pulling force on the flexible connection bar 2332, and at this time, the elastic structure 234 applies the stored elastic potential energy to the first fixing portion 231, so that the first fixing portion 231 moves away from the second fixing portion 232, and the first fixing portion 231 can pull out the flexible connection bar 2332.

So set up, driving motor 2331 can drive first fixed part 231 to move towards second fixed part 232 through flexible connection strip 2332. In addition, the flexible connecting strip 2332 has the characteristic of flexibility and easy bending, so that the problem that the rim body 1 cannot be turned due to too short distance of the flexible connecting strip 2332 when the rim body 1 is turned is prevented. And can adjust the arrangement of flexible connection strip 2332 according to the practical application demand, help improving the convenience of using.

Optionally, as shown in fig. 3 and 7, a flexible connection bar 2332 is wrapped with a protective sheath 2333 between the drive motor 2331 and the second fixed portion 232 and is configured to be movable within the protective sheath 2333.

So set up, prevent that flexible connection strip 2332 from directly contacting with external environment and leading to flexible connection strip 2332 damage to prevent to appear because of flexible connection strip 2332 damages the condition that leads to driving motor 2331 unable pulling first fixed part 231, and help prolonging flexible connection strip 2332's life.

Alternatively, the first fixing portion 231 is provided as a screw, and is screwed to the rotating member 22.

In this way, the first fixing portion 231 is screwed to the rotating member 22, and after the flexible connection bar 2332 is wound around the first fixing portion 231, the flexible connection bar 2332 can be fixed by rotating the first fixing portion 231.

Alternatively, the driving motor 2331 is provided as an electric push rod or a rotating motor.

Specifically, when the driving motor 2331 is configured as an electric putter, one end of the flexible connection bar 2332 is connected to the output end of the electric putter, and the other end is connected to the first fixing portion 231. When the electric push rod is contracted, a pulling force can be applied to the flexible connecting strip 2332 to drive the first fixing part 231 to move. When the driving motor 2331 is set as a rotating motor, one end of the flexible connection bar 2332 is connected to the output end of the rotating motor, and the other end is connected to the first fixing portion 231, and when the rotating motor rotates, the flexible connection bar 2332 is wound around the rotating shaft of the rotating motor, thereby driving the first fixing portion 231 to move.

In one embodiment of the present utility model, referring to fig. 2, the distance between the first fixing portion 231 and the rotation axis of the rotation member 22 is greater than the distance between the braking member 24 and the rotation axis of the rotation member 22.

Here, the above and below rotational axes refer to rotational center lines of rotation, specifically, X-axis as shown in fig. 6.

So set up, the distance between driver 23 and the axis of rotation is greater than the distance between brake 24 and the axis of rotation, can make the arm of force of driver 23 greater than the arm of force of brake 24, according to the lever principle, can make the force that acts on brake 24 greater than the force that driver 23 applys to rotor 22, thus can increase the frictional force between brake 24 and rim main body 1, the brake 24 of being convenient for brakes rim main body 1.

As shown in fig. 1 and 2, the present utility model also provides a steering system including at least two wheel brake devices, steering links 3, each of which is equipped with a steering link 3, and a steering gear (not shown in the drawings) which is fitted between the steering links 3.

According to the steering system provided by the utility model, when the steering of the rim main bodies 1 is required to be controlled, the steering device drives the two rim main bodies 1 to rotate simultaneously through the two steering connecting pieces 3, so that the rim main bodies 1 can move towards different directions. In addition, the difficulty in installing the steering system can be reduced.

In one embodiment of the present utility model, referring to fig. 1 and 2, the steering link 3 includes a first link 31 and at least two second links 32, the first link 31 being hinged to the mounting member 21, and the at least two second links 32 being both hinged to the mounting member 21 and spaced apart.

Here, the present embodiment is described taking the case where the number of the second connection members 32 is two as an example. Of course, in other embodiments, the second connecting member 32 may be configured with three, four … … values, etc., which are not limited only herein.

Specifically, the steering gear drives the first connecting piece 31 to move in a translational manner, and the first connecting piece 31 is rotatably assembled on the mounting piece 21, so that the first connecting piece 31 can drive the mounting piece 21 to rotate, that is, the mounting piece 21 can rotate relative to the first connecting piece 31, and the rim body 1 is driven to rotate by the mounting piece 21. When the mounting member 21 rotates relative to the first connecting member 31, the mounting member 21 also rotates relative to the second connecting member 32.

So configured, the rotator can rotate the mounting member 21 through the first connecting member 31 to rotate the rim body 1. And, the first connecting piece 31 can drive the installation piece 21 to rotate under the effect of the steering gear, and simultaneously, the rotation piece 22, the driving piece 23 and the braking piece 24 all follow the installation piece 21 to move, and the relative positions among the rotation piece 22, the driving piece 23, the braking piece 24 and the rim main body 1 are kept consistent all the time, so that the braking stability of the rim main body 1 in the steering process can be improved. In addition, under the action of the at least two second connecting elements 32, this contributes to an increase in the stability of the mounting element 21 during steering, and thus to a further increase in the braking stability of the rim body 1 during steering.

Alternatively, the first and second connection members 31 and 32 are each provided in a spherical hinge structure.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A wheel brake device, comprising:

2. The wheel brake apparatus of claim 1, wherein the mounting member includes a first mounting body and a second mounting body, the first mounting body being mounted to the rim body, the second mounting body being bent to connect to the first mounting body, the rotating member being rotatably mounted to the second mounting body.

3. The wheel brake apparatus according to claim 2, wherein the second mounting body includes a first mounting portion, a second mounting portion and a third mounting portion, the first mounting portion is bent and connected to the first mounting body, the second mounting portion is bent and connected to the first mounting portion, the third mounting portion is connected between the first mounting portion and the second mounting portion, the rotating member is hinged to the third mounting portion, and the driving member is provided at an end of the first mounting portion remote from the first mounting body.

4. The wheel brake apparatus according to claim 1, wherein the driving member includes a first fixing portion, a second fixing portion, and a driving portion, the first fixing portion is mounted to the rotating member, the second fixing portion is screwed to the mounting member, and the driving portion is disposed through the second fixing portion and fixedly connected to the first fixing portion.

5. The wheel brake apparatus according to claim 4, wherein the driving member further comprises an elastic structure, and the elastic structure is sleeved on the driving portion and abuts between the first fixing portion and the second fixing portion.

6. The wheel brake apparatus as defined in claim 4, wherein the second fixed portion includes an adjustment structure rotatably fitted to the mounting member and a fixed structure fixedly connected to the adjustment structure, and the driving portion is provided to pass through the fixed structure and is movable within the fixed structure.

7. The wheel brake apparatus of claim 6, wherein the driving portion includes a driving motor and a flexible connecting strip fixedly connected between the driving motor and the first fixing portion and passing through the fixing structure.

8. The wheel brake apparatus of claim 4, wherein a distance between the first fixed portion and the rotational axis of the rotational member is greater than a distance between the brake member and the rotational axis of the rotational member.

9. Steering system, characterized in that it comprises at least two wheel brake devices according to any of claims 1-8, which are each equipped with a steering connection, a steering connection and a steering gear, which is fitted between two steering connections.

10. The steering system of claim 9, wherein the steering linkage comprises a first linkage and at least two second linkages, the first linkage being hinged to the mounting member, the at least two second linkages both being hinged to the mounting member and spaced apart.