Foundation braking and tread cleaning integrated device

Abstract

The invention discloses a foundation braking and tread cleaning integrated device, relates to the technical field of bogies, and aims to solve the problems of low component integration level, large occupied space and mutual interference during working of a conventional wheel disc brake and a tread cleaner due to the separated design of the conventional wheel disc brake and the tread cleaner, the device comprises a driving mechanism, a braking mechanism and a cleaning mechanism, the brake mechanisms are arranged on the inner sides of the wheels; the sweeping mechanism is arranged on the outer sides of the wheels and connected with the braking mechanism and the driving mechanism, and the telescopic movement of the driving mechanism is used for switching the action states of the braking mechanism and the sweeping mechanism so as to achieve the braking function and the sweeping function; by means of the arrangement, the basic braking function and the tread cleaning function are ingeniously integrated, flexible switching of the two functions is achieved by means of a single driving mechanism, the space occupied by the vehicle braking device is effectively reduced, the overall layout efficiency of a bogie is remarkably improved, and meanwhile the complexity and cost of the device are reduced.

Description

Technical Field

[0001] This invention relates to the field of bogie technology, and more specifically, to an integrated device for basic braking and tread cleaning. Background Technology

[0002] In the field of rail transit vehicle bogies, disc brakes and tread cleaners are two important devices, used to achieve the vehicle's braking function and the cleaning function of the wheel treads, respectively. Traditional disc brakes generate braking force through the contact between brake pads and brake discs, thereby slowing down or stopping the vehicle; while tread cleaners are used to clean the wheel treads to maintain good contact between the wheels and the rails, thus improving the safety and stability of vehicle operation.

[0003] However, traditional disc brakes and tread sweepers are completely independent components, each performing different functions and arranged separately. Tread sweepers are usually equipped with independent drive mechanisms, independent of disc brakes. This separate design results in low component integration, not only occupying a large space, but also, due to the independence of the brake and sweeper, the two may interfere with each other during operation, thus affecting their respective performance and effectiveness.

[0004] Therefore, how to solve the problems of low component integration, large space occupation, and mutual interference during operation in the traditional separate design of disc brake and tread sweeper is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an integrated device for basic braking and tread cleaning, which ingeniously integrates the basic braking function and the tread cleaning function into one, and achieves flexible switching between the two functions with the help of a single drive mechanism. This not only effectively reduces the space occupied by the vehicle braking device, but also significantly improves the overall layout efficiency of the bogie, while reducing the complexity and cost of the device.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A basic braking and tread cleaning integrated device, comprising:

[0008] Drive mechanism;

[0009] The braking mechanism is located on the inside of the wheel;

[0010] The sweeping mechanism is located on the outside of the wheel and connects the braking mechanism and the drive mechanism. The extension and retraction movement of the drive mechanism is used to switch the action states of the braking mechanism and the sweeping mechanism to realize the braking function and the sweeping function respectively.

[0011] In some embodiments, the braking mechanism includes brake pads and a brake disc. The brake disc is located inside the wheel, and the brake pads are connected to the output end of the drive mechanism via brake pad holders and cooperate with the brake disc to achieve braking.

[0012] In some embodiments, two brake discs and two brake pads are provided respectively; the two brake discs are respectively provided on both sides of the wheel along the axial direction of the wheel, and the two brake pads respectively cooperate with the corresponding brake discs.

[0013] In some embodiments, the contact surfaces of the brake disc and the brake pads are both configured as inclined curved surfaces.

[0014] In some embodiments, the cleaning mechanism includes an abrasive, which is disposed on the side of the brake pad holder near the outer peripheral surface of the wheel.

[0015] In some embodiments, the end face of the grinding tool facing the outer peripheral surface of the wheel is an arc-shaped surface.

[0016] In some embodiments, the drive mechanism is a cylinder, and the piston rod of the cylinder extends and retracts along the radial direction of the wheel.

[0017] In some embodiments, the cylinder includes a housing and a piston located within the housing that divides the inner cavity into a first cylinder chamber and a second cylinder chamber; the housing is provided with a first air inlet communicating with the first cylinder chamber and a second air inlet communicating with the second cylinder chamber.

[0018] In some embodiments, the brake pad support includes a connecting portion and a supporting portion, the middle portion of which is connected to the piston rod, and one end of which is rotatably connected to the housing.

[0019] In some embodiments, the support is a U-shaped structure and is distributed on both sides of the wheel along the axial direction of the wheel, and the inner side of the open end of the support is used to install the brake pad.

[0020] The basic braking and tread cleaning integrated device provided by this invention includes a drive mechanism, a braking mechanism, and a cleaning mechanism. Specifically, the braking mechanism is located on the inner side of the wheel and is specifically used to realize the vehicle's braking function. The cleaning mechanism is located on the outer side of the wheel and is responsible for completing the tread cleaning task. The cleaning mechanism connects the braking mechanism and the drive mechanism. The extension and retraction movement of the drive mechanism is used to switch the action states of the braking mechanism and the cleaning mechanism to realize the braking function and the cleaning function respectively. This design ensures that only one function is executed at a time, effectively avoiding mutual interference between functions and significantly improving the system's operating efficiency and safety. At the same time, using a single drive mechanism to realize function switching greatly reduces the need for independent components, further improves the overall integration, and optimizes the overall structural layout. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 A schematic diagram of the basic braking and tread cleaning integrated device provided by the present invention;

[0023] Figure 2 A simplified diagram of the basic braking and tread cleaning integrated device provided by the present invention;

[0024] Figure 3 for Figure 2 A schematic diagram of the force analysis of the brake disc and brake pads.

[0025] The annotations in the attached figures are explained as follows:

[0026] 10 - Wheels;

[0027] 1-Drive mechanism, 11-Housing, 12-Piston, 13-Piston rod, 14-First air inlet, 15-Second air inlet;

[0028] 2-Brake mechanism, 21-Brake pad, 22-Brake disc, 23-Brake pad support, 24-Inclined curved surface;

[0029] 3-Cleaning mechanism, 31-Curved surface. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 invention according to the specific circumstances.

[0032] It should be noted that the directional terms such as "left" and "right" in the following text are defined based on the accompanying drawings in the instruction manual.

[0033] The core of this invention is to provide an integrated device for basic braking and tread cleaning, which ingeniously integrates the basic braking function and the tread cleaning function into one unit. The two functions can be flexibly switched by a single drive mechanism 1. This not only effectively reduces the space occupied by the vehicle braking device, but also significantly improves the overall layout efficiency of the bogie, while reducing the complexity and cost of the device.

[0034] Please refer to Figure 1 and Figure 2 A basic braking and tread cleaning integrated device includes a drive mechanism 1, a braking mechanism 2 and a cleaning mechanism 3.

[0035] Specifically, the braking mechanism 2 is located on the inner side of the wheel 10 and is specifically used to realize the vehicle's braking function. The sweeping mechanism 3 is located on the outer side of the wheel 10 and is responsible for completing the tread cleaning task. The sweeping mechanism 3 connects the braking mechanism 2 and the drive mechanism 1. The extension and retraction movement of the drive mechanism 1 is used to switch the action states of the braking mechanism 2 and the sweeping mechanism 3 to realize the braking function and the sweeping function respectively. This design ensures that only one of the two functions is executed at any given time, effectively avoiding mutual interference between functions and significantly improving the system's operating efficiency and safety. At the same time, using a single drive mechanism 1 to realize function switching greatly reduces the need for independent components, further improves the overall integration, and optimizes the overall structural layout.

[0036] In the above embodiment, the drive mechanism 1 is a cylinder, and the piston rod 13 of the cylinder extends and retracts along the radial direction of the wheel 10.

[0037] Understandably, the cylinder-driven mechanism provides a stable and adjustable driving force, ensuring a smooth and reliable switching process between braking and sweeping functions. The radial extension and retraction of the piston rod 13 along the wheel 10 directly acts on the braking mechanism 2 and the sweeping mechanism 3, making the braking and sweeping actions more precise and improving their efficiency and effectiveness. Furthermore, the cylinder structure is simple and compact, easy to integrate and maintain, further optimizing the overall layout of the device and reducing maintenance costs. Simultaneously, the cylinder's extension and retraction effectively adapts to different working conditions, enhancing the device's adaptability and flexibility. This design not only improves the functionality of the integrated braking and tread sweeping device but also ensures its reliability and economy in practical applications.

[0038] Furthermore, the cylinder includes a housing 11 mounted on the bogie, and a piston 12 located within the housing 11, dividing the inner cavity into a first cylinder chamber and a second cylinder chamber. The housing 11 is provided with a first air inlet 14 communicating with the first cylinder chamber and a second air inlet 15 communicating with the second cylinder chamber. This structure enables bidirectional extension and retraction of the piston rod 13. By supplying air to the two cylinder chambers respectively, the switching of the braking mechanism 2 and the cleaning mechanism 3 can be precisely controlled, significantly enhancing the functional flexibility and operational precision of the device. Simultaneously, this partitioned design improves the cylinder's sealing and reliability, reduces the risk of functional failure due to air pressure leakage, and ensures stable operation of the device under complex working conditions. In addition, the bidirectional control capability allows the device to be optimized and adjusted according to different braking and cleaning requirements. For example, under different vehicle speeds, loads, and track conditions, by adjusting the cylinder's air intake pressure and direction, more efficient braking and cleaning effects can be achieved. This design not only simplifies the control logic of the drive mechanism 1, making it easier to achieve automated and intelligent control, but also further optimizes the overall layout of the device, making its structure more compact, reducing external space occupation, and improving the operating efficiency and maintenance convenience of the entire device.

[0039] In the above embodiment, the cleaning mechanism 3 includes a grinding element, which is located on the side of the brake pad holder 23 near the outer peripheral surface of the wheel 10. This design, through its rational layout, allows the grinding element to switch to cleaning mode as needed under the control of the drive mechanism 1, independently completing the tread cleaning task. The combination of the grinding element and the brake pad holder 23 not only utilizes the existing braking structure and reduces the use of additional parts, but also ensures the stability and reliability of the cleaning mechanism 3 during switching. Simultaneously, this structure optimizes space utilization, avoiding the layout complexity and space occupation problems caused by adding an independent cleaning device. In this way, the grinding element can efficiently complete the tread cleaning task without affecting the braking function, ensuring the cleanliness of the wheel 10 tread surface, thereby extending the service life of the wheel 10 and improving the safety and stability of vehicle operation.

[0040] The abrasive pad can be made of a highly wear-resistant composite material. This composite material is composed of silicon carbide particles and a resin matrix, exhibiting excellent wear resistance and moderate hardness. The high hardness of the silicon carbide particles effectively removes dirt and impurities from the wheel tread, while the resin matrix provides the abrasive pad with a certain degree of elasticity, allowing it to apply force evenly when in contact with the wheel tread, preventing excessive wear. Furthermore, this composite material also possesses good impact resistance, enabling it to withstand significant impacts during vehicle operation without easily being damaged, thus extending the abrasive pad's service life. By selecting this high-performance composite material, the abrasive pad can not only efficiently complete the tread cleaning task but also reduce damage to the wheel tread while ensuring cleaning effectiveness, further improving vehicle safety and economy.

[0041] The integrated braking and tread cleaning device set up in the above manner reduces the space occupied by the device and improves the flexibility and compactness of the bogie layout; a single drive mechanism 1 realizes the switching between the two functions, reduces the number of parts, and reduces the complexity of the device; the braking and cleaning functions work together to improve the braking effect and tread cleaning efficiency, and extend the service life of the wheels 10; the integrated design makes maintenance operations more centralized and convenient, and reduces maintenance time and labor costs.

[0042] In the above embodiment, the braking mechanism 2 includes a brake pad 21 and a brake disc 22. The brake disc 22 is located on the inner side of the wheel 10. The brake pad 21 is connected to the output end of the drive mechanism 1 through the brake pad support 23 and cooperates with the brake disc 22 to achieve the braking effect.

[0043] It should be noted that the brake disc 22 is fixedly mounted inside the wheel 10, i.e., adjacent to the wheel hub or axle. This arrangement makes full use of the compact space inside the wheel 10, ensuring the stability and reliability of the braking components. The brake pad 21 is connected to the output end of the drive mechanism 1 (such as the piston rod 13 of a cylinder) via the brake pad support 23, and cooperates with the brake disc 22 to achieve the braking function. The working surface of the brake pad 21 maintains a small gap with the friction surface of the brake disc 22, and is in a ready-to-brake state. One end of the brake pad support 23 is securely connected to the output end of the drive mechanism 1 (such as the piston rod 13 of a cylinder) via a connecting part, while the other end uses its U-shaped or similar support part to precisely fix the brake pad 21 in the position aligned with the brake disc 22. This connection method ensures that the linear thrust or pull generated by the drive mechanism 1 can be directly transmitted to the brake pad 21 without loss, thereby achieving rapid response and efficient braking force transmission.

[0044] Taking the illustrated direction as an example, piston rod 13 moves to the left in a retracted state and to the right in an extended state. When braking is required, gas is introduced into the second cylinder chamber through the second air inlet 15. The introduction of gas pushes piston 12 to the left along housing 11, increasing the volume of the second cylinder chamber. Piston rod 13 moves to the left simultaneously, driving the grinding wheel and brake pad 21 to move to the left simultaneously via brake pad support 23. At this time, brake pad 21 comes into close contact with the brake disc 22 on the inner side of wheel 10 until the force between brake pad 21 and brake disc 22 meets the requirements, achieving the braking function. Through the huge frictional force generated between the contact surfaces of brake pad 21 and brake disc 22, the kinetic energy of wheel 10 is converted into heat energy and dissipated, thereby achieving vehicle deceleration or stopping. At the same time, the grinding wheel separates from the outer circumference of wheel 10, ensuring that the cleaning function is not activated during braking.

[0045] Conversely, when cleaning is required, gas is introduced into the first cylinder chamber through the first air inlet 14. The inflow of gas pushes the piston 12 to the right along the housing 11, increasing the volume of the first cylinder chamber. The piston rod 13 moves synchronously to the right, driving the brake pad 21 and the grinding wheel to move synchronously to the right via the brake pad support 23. At this time, the grinding wheel is in close contact with the outer circumference of the wheel 10, achieving the cleaning function. Simultaneously, the brake pad 21 separates from the brake disc 22 inside the wheel 10, ensuring that the braking function is not activated during cleaning. This ingenious cylinder-driven design achieves efficient switching between braking and cleaning functions, ensuring that the two functions do not interfere with each other, thus improving the reliability and operating efficiency of the device.

[0046] In the above situation, there are two brake discs 22 and two brake pads 21 respectively; the two brake discs 22 are respectively arranged on both sides of the wheel 10 along the axial direction of the wheel 10, and the two brake pads 21 are respectively engaged with the corresponding brake discs 22.

[0047] Understandably, the arrangement of dual brake discs 22 and dual brake pads 21 allows for simultaneous application of braking force to both sides of the wheel 10, significantly enhancing braking performance, shortening braking distance, and thus greatly improving vehicle braking efficiency and safety. This symmetrical braking method also distributes braking force more evenly, avoiding wheel 10 deflection or instability caused by unilateral braking, ensuring smooth vehicle operation during braking. Simultaneously, because the braking force is evenly distributed on both sides of the wheel 10, the wear on each brake disc 22 and brake pad 21 is relatively reduced, thereby extending the service life of braking components and reducing maintenance costs and replacement frequency. Moreover, this design improves the redundancy of the braking system; even if one brake disc 22 or brake pad 21 fails, the other can still continue to provide braking force, enhancing system reliability and fault tolerance, and reducing the risk of brake failure. Furthermore, the layout of dual brake discs 22 and dual brake pads 21 improves braking performance while maintaining the compactness and structural rationality of the entire braking system. It makes full use of the space on both sides of the wheel 10, avoids unnecessary structural complexity, ensures the compatibility of the braking system with the vehicle bogie, and provides greater flexibility and adaptability for the overall vehicle design.

[0048] Furthermore, the contact surfaces of both the brake disc 22 and the brake pads 21 are designed as inclined curved surfaces 24, which can effectively amplify the force of compressed air, thereby significantly improving braking performance. Please refer to... Figure 3 When the compressed air in the cylinder applies a force F to the piston 12, since the angle between the contact surfaces of the brake disc 22 and the brake pad 21 is α, according to the principle of force decomposition, the actual pressure between the brake pad 21 and the brake disc 22 is F / sinα. This value is significantly greater than F, thus achieving a significant enhancement of braking force.

[0049] The inclined curved surface 24 design allows for a more even distribution of braking force when the brake pads 21 contact the brake disc 22, preventing premature wear of the brake disc 22 or brake pads 21 due to excessive local pressure, thus extending the service life of the braking components. Simultaneously, this design enhances stability during braking, ensuring more uniform and stable friction between the wheel 10 and the brake disc 22 during high-speed or emergency braking, reducing brake shudder and noise, and improving vehicle smoothness. Furthermore, by optimizing the geometry of the contact surface, the contact area between the brake disc 22 and brake pads 21 is more fully utilized during braking, further improving the efficiency of braking force transmission, shortening the braking distance, and enhancing vehicle safety. This ingenious structural design not only improves the overall performance of the braking system but also achieves higher braking efficiency and reliability without increasing additional energy consumption.

[0050] Based on the above embodiment, the end face of the grinding tool facing the outer peripheral surface of the wheel 10 is an arc-shaped surface 31.

[0051] It should be noted that the arc-shaped surface 31 of the abrasive has a higher degree of contact with the outer circumference of the wheel 10, achieving a more uniform and efficient cleaning effect. This ensures that the wheel tread remains clean during operation, thereby reducing the potential impact of impurities on braking performance. Simultaneously, the arc-shaped end face design allows for more even force distribution when the abrasive contacts the wheel 10, preventing premature wear due to excessive local pressure, effectively extending the abrasive's service life and reducing maintenance costs. By optimizing the contact surface shape of the abrasive, not only is the efficiency and quality of tread cleaning improved, but the reliability and economy of the entire braking and cleaning integrated device are also enhanced without increasing additional energy consumption.

[0052] In the above case, the brake pad support 23 includes a connecting part and a supporting part. The middle part of the connecting part is connected to the piston rod 13, and one end of the connecting part is rotatably connected to the housing 11.

[0053] Understandably, the connection between the connecting part and the piston rod 13 ensures that the driving force can be efficiently and stably transmitted to the brake pad holder 23, thereby achieving precise movement of the brake pad 21 and the grinding tool. Switching between braking and cleaning states can be completed quickly and accurately. The rotatable connection between the connecting part and the housing 11 gives the brake pad holder 23 a certain degree of freedom of movement, allowing it to automatically adapt to the uneven surface of the brake disc 22 during braking, ensuring that the brake pad 21 and the brake disc 22 always maintain optimal contact, thus improving braking efficiency and stability. At the same time, this design also enhances the structural flexibility of the brake pad holder 23, reduces stress concentration problems that may be caused by rigid connections, and further extends the service life of the brake pad holder 23 and related components.

[0054] In one specific embodiment, to achieve a rotatable connection between the housing 11 and the brake pad holder 23, the housing 11 is provided with an outwardly extending connecting lug, and the connecting lug has a connecting hole. The connecting part of the brake pad holder 23 also has a corresponding matching connecting hole, and a rotating shaft connects the connecting lug of the housing 11 and the connecting part of the brake pad holder 23 together. This structural design allows the brake pad holder 23 to rotate around the rotating shaft relative to the housing 11 at a certain angle, thereby automatically adapting to the uneven surface of the brake disc 22 during braking, ensuring that the brake pad 21 and the brake disc 22 always maintain optimal contact, improving braking efficiency and stability. Furthermore, the rotating shaft provides sufficient freedom of movement for the brake pad holder 23, allowing it to flexibly adjust its position under different working conditions, reducing stress concentration problems caused by rigid connections, and extending the service life of the brake pad holder 23 and related components. At the same time, this rotatable connection method simplifies the assembly process, reduces manufacturing costs, and improves the reliability and maintenance convenience of the entire device.

[0055] In the above embodiment, the support part is a U-shaped structure and is distributed on both sides of the wheel 10 along the axial direction of the wheel 10. The inner side of the opening end of the support part is used to set the brake pad 21.

[0056] It should be noted that this design achieves precise positioning and stable support for the brake pads 21, ensuring that the brake pads 21 are accurately aligned with the brake disc 22 during braking, thereby achieving efficient and stable braking force transmission. The U-shaped support structure provides sufficient space for the brake pads 21, allowing them to extend freely and fit tightly against the brake disc 22 during braking, while effectively preventing interference between the brake pads 21 and other components in the non-braking state, ensuring the smooth operation of the entire device. In addition, this layout makes full use of the space on both sides of the wheel 10, optimizes the structural compactness of the entire braking mechanism 2, reduces the occupation of additional space, and further improves the space utilization efficiency of the bogie.

[0057] In summary, the basic braking and tread cleaning integrated device provided by this invention achieves a high degree of functional integration and optimization by integrating the braking mechanism 2 and the cleaning mechanism 3 into one unit. It cleverly utilizes the wedge effect (the inclined curved surface 24 of the brake disc 22 and brake pad support 23) to amplify the force of compressed air, significantly improving the execution efficiency of braking and cleaning functions. This not only simplifies the complex structural layout of traditional braking and cleaning systems, reducing the number of parts and space occupation, but also significantly reduces the system's manufacturing and maintenance costs. Furthermore, the independent switching design of the cleaning and braking functions ensures efficient execution of both functions under different working conditions without interference.

[0058] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0059] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0060] The above provides a detailed description of the integrated basic braking and tread cleaning device provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. An integrated device for basic braking and tread cleaning, characterized in that, include: Drive mechanism (1); Braking mechanism (2) is located inside the wheel (10); The cleaning mechanism (3) is located on the outside of the wheel (10) and connects the braking mechanism (2) and the driving mechanism (1). The extension and retraction movement of the driving mechanism (1) is used to switch the action states of the braking mechanism (2) and the cleaning mechanism (3) to realize the braking function and the cleaning function respectively.

2. The integrated braking and tread cleaning device according to claim 1, characterized in that, The braking mechanism (2) includes a brake pad (21) and a brake disc (22). The brake disc (22) is located on the inner side of the wheel (10). The brake pad (21) is connected to the output end of the drive mechanism (1) through the brake pad support (23) and cooperates with the brake disc (22) to achieve the braking effect.

3. The integrated braking and tread cleaning device according to claim 2, characterized in that, Two brake discs (22) and two brake pads (21) are provided respectively; the two brake discs (22) are respectively provided on both sides of the wheel (10) along the axial direction of the wheel (10), and the two brake pads (21) respectively cooperate with the corresponding brake discs (22).

4. The integrated braking and tread cleaning device according to claim 2, characterized in that, The contact surfaces of the brake disc (22) and the brake pad (21) are both set as inclined curved surfaces (24).

5. The integrated braking and tread cleaning device according to any one of claims 2-4, characterized in that, The cleaning mechanism (3) includes an abrasive, which is located on the side of the brake pad support (23) near the outer peripheral surface of the wheel (10).

6. The integrated braking and tread cleaning device according to claim 5, characterized in that, The end face of the grinding wheel facing the outer peripheral surface of the wheel (10) is an arc-shaped surface (31).

7. The integrated braking and tread cleaning device according to claim 6, characterized in that, The drive mechanism (1) is a cylinder, and the piston rod (13) of the cylinder extends and retracts along the radial direction of the wheel (10).

8. The integrated braking and tread cleaning device according to claim 7, characterized in that, The cylinder includes a housing (11) and a piston (12) located inside the housing (11) that divides the inner cavity into a first cylinder chamber and a second cylinder chamber; the housing (11) is provided with a first air inlet (14) communicating with the first cylinder chamber and a second air inlet (15) communicating with the second cylinder chamber.

9. The integrated braking and tread cleaning device according to claim 8, characterized in that, The brake pad support (23) includes a connecting part and a supporting part. The middle part of the connecting part is connected to the piston rod (13), and one end of the connecting part is rotatably connected to the housing (11).

10. The integrated braking and tread cleaning device according to claim 9, characterized in that, The support part has a U-shaped structure and is distributed on both sides of the wheel (10) along the axial direction of the wheel (10). The inner side of the opening end of the support part is used to set the brake pad (21).

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