Power-assisted brake hub

Abstract

The invention relates to the technical field of wheels, in particular to a power-assisted brake hub. A rotating piece is arranged at the installation position of the hub and a vehicle, an installation groove position is correspondingly arranged at the circle center of the hub, the rotating piece is movably installed in the installation groove position, and an elastic piece is installed between the rotating piece and the installation groove position. According to the power-assisted brake hub, the rotating part is arranged at the installation position of the hub and the vehicle, and the elastic part is installed between the rotating part and the hub, so that the power-assisted effect during vehicle braking is achieved. Specifically, when the vehicle is braked, the elastic piece drives the hub to rotate reversely through stored force, so that the braking process is assisted, and the braking efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wheels, in particular to a power-assisted braking hub. Background Art

[0002] In the vehicle braking system, the traditional braking method mainly relies on the friction between the brake disc and the brake pad to slow down or stop the vehicle. However, this braking method has the problems of long braking distance and low braking efficiency in some cases. Especially in emergency braking or high-speed driving, poor braking effect may lead to serious traffic accidents. In addition, long-term use of the traditional braking system will cause the brake disc, brake pad and tire to wear quickly, increasing the maintenance cost of the vehicle.

[0003] Based on the above background, the technical problem proposed by the present invention is: how to assist vehicle braking by using a steel rim. Summary of the invention

[0004] The present invention provides a power-assisted brake hub to effectively improve the braking efficiency of a vehicle and extend the service life of a brake disc, a brake pad and a tire.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: A power-assisted braking hub is provided, wherein a rotating part is provided at the mounting position of the hub and the vehicle, a mounting groove is provided correspondingly at the center of the hub, the rotating part is movably mounted in the mounting groove, an elastic part is installed between the rotating part and the mounting groove, and is used to provide a reaction force on the hub during braking; when driving, the rotating part rotates synchronously with the hub; when braking, the hub continues to rotate in the direction of vehicle movement relative to the rotating part, and the elastic part accumulates force to drive the hub to reverse, which is used to assist vehicle braking.

[0006] Furthermore, a plurality of arms are provided on the rotating member for abutting against the elastic member, a plurality of first accommodating grooves are provided on the inner side of the installation groove for installing the elastic member and providing displacement space for the arm, the arm is movably installed at one end of the first accommodating groove, and the elastic member abuts between the arm and the other end of the first accommodating groove.

[0007] Furthermore, an end cover is provided on the inner side of the installation slot, and a plurality of second accommodating slots corresponding to the first accommodating slots are provided on the end cover, and the first accommodating slots and the second accommodating slots are fitted together to form an accommodating cavity; a clearance notch is provided on the side of the first accommodating slot and the second accommodating slot close to the rotating part for making way for the support arm.

[0008] Furthermore, a limiting protrusion is provided at one end of the support arm that contacts the elastic member, which is used to clamp the elastic member, and a reinforcing seat is provided at the connection between the support arm and the rotating member and on one side close to the elastic member.

[0009] Furthermore, the rotating member is rotatably connected to the wheel hub via a plurality of sealed bearings, and the rotating member is provided with bolt holes fixedly connected to the brake disc.

[0010] Furthermore, a plurality of support frames are provided on the rotating member, and rollers are rotatably mounted on the support frames, and the rollers roll on the inner walls of the mounting slots.

[0011] Furthermore, the elastic force of the elastic member is greater than the torsion of the vehicle. When the vehicle is running, the elastic member does not deform, but when the vehicle brakes, the elastic member deforms.

[0012] Furthermore, the rotating member, the support arm and the support frame are integrally formed to improve rigidity.

[0013] Furthermore, the hub is provided with a plurality of spokes, and the first accommodating groove is arranged at a root position of the spoke close to the center.

[0014] Furthermore, the elastic member is one of a spring, an air spring, a hydraulic spring or a rubber spring.

[0015] The beneficial effects of the present invention are: The power-assisted brake hub of the present invention achieves a power-assisted effect when the vehicle is braked by arranging a rotating member at the mounting position of the hub and the vehicle, and installing an elastic member between the rotating member and the hub. Specifically, when the vehicle brakes, the elastic member drives the hub to reverse by accumulating force, thereby assisting the braking process and improving the braking efficiency.

[0016] The power-assisted brake hub of the present invention can also prevent the tire from locking and slipping, thereby extending the service life of the tire. In addition, the relative movement between the rotating part and the hub during braking provides a buffer for the braking process, and at the same braking distance, the contact time and friction between the brake pad and the brake disc are also reduced.

[0017] The power-assisted brake hub of the present invention is not only simple in structure and easy to install, but also can effectively improve the braking efficiency and safety of the vehicle, extend the service life of the brake disc, brake pad and tire, and reduce maintenance costs.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A side view of the present invention and the brake system installation; Figure 2 A stereogram of the present invention and the brake system installation; Figure 3 In one embodiment of the present invention, Figure 1 ; Figure 4 In one embodiment of the present invention, Figure 2 ; Figure 5 This is a disassembled diagram of an end cover in one embodiment of the present invention; Figure 6 is a side view of a wheel hub in one embodiment of the present invention; Figure 7 for Figure 6 Sectional view at "AA" in the figure; Figure 8 A partial view of a hub in one embodiment of the present invention; Fig. 9 This is a schematic diagram of the disassembly of a rotating member in one embodiment of the present invention; In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. wheel hub; 11. mounting slot; 12. first receiving slot; 121. clearance notch; 14. spoke; 2. Rotating member; 21. Support arm; 211. Limiting protrusion; 212. Reinforcement seat; 22. Bolt hole; 23. Support frame; 24. Roller; 3. Elastic member; 4. End cover; 41. Second receiving groove; 5. Sealed bearing. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be construed as limiting the present invention. In addition, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use scenarios of other materials.

[0022] refer to Figures 1 to 9 As shown, the present invention provides the following preferred embodiments: Embodiment 1: In order to solve the problems of long braking distance, low braking efficiency and increased maintenance cost in the traditional braking system, this embodiment proposes a power-assisted brake hub, which effectively improves the braking efficiency and prolongs the service life of the brake disc, brake pad and tire by arranging a rotating member 2 at the installation position of the hub 1 and the vehicle, and installing an elastic member 3 between the rotating member 2 and the hub 1. Specifically, the power-assisted brake hub in this embodiment includes a hub 1 main body, a rotating member 2 and a plurality of elastic members 3.

[0023] The main body of the wheel hub 1 is provided with an installation slot 11 at the center of the wheel hub 1, and the installation slot 11 is mainly used to accommodate the rotating member 2. The rotating member 2 is movably installed in the installation slot 11, and its main function is to rotate synchronously with the main body of the wheel hub 1 when the vehicle is driving. When the vehicle brakes, the wheel hub 1 continues to rotate in the direction of vehicle movement relative to the rotating member 2. The elastic member 3 accumulates force in this process and releases energy at the critical point, driving the main body of the wheel hub 1 to reverse the trend, thereby generating a power-assisted braking force. It can be understood that the critical point here is that the elastic potential energy of the elastic member 3 is greater than the rotational potential energy of the wheel.

[0024] Furthermore, the elastic member 3 installed between the rotating member 2 and the mounting slot 11 preferably adopts a spring structure. The selection of the spring needs to be based on the load capacity and driving speed range of the vehicle to ensure that the elastic member 3 will not be deformed under normal driving conditions, especially when reversing, so as to reduce unnecessary energy loss. When the vehicle brakes, the elastic member 3 can quickly accumulate force in a short time, thereby providing an effective reaction force during the braking process and achieving the purpose of power-assisted braking. The material of the spring is selected to be high-carbon spring steel, because high-carbon spring steel has good elastic properties and fatigue resistance, which can effectively ensure that the elastic member 3 will not fail or fatigue fracture during frequent braking.

[0025] Furthermore, in order to realize the movable installation between the rotating member 2 and the installation slot 11, the present embodiment uses a plurality of sealed bearings 5 ​​to connect the rotating member 2 and the main body of the wheel hub 1. These sealed bearings 5 ​​can not only effectively prevent the entry of dust and moisture from the outside, prolong the service life of the bearings, but also ensure the smooth rotation between the rotating member 2 and the main body of the wheel hub 1, so as to realize the synchronous rotation of the two when the vehicle is running, and the relative rotation of the main body of the wheel hub 1 relative to the rotating member 2 when braking. The inner and outer rings of the sealed bearings 5 ​​are made of 40Cr steel, and the surface is quenched to improve its hardness and wear resistance, so as to ensure stability and reliability under high-load working conditions.

[0026] Furthermore, the rotating member 2 is provided with bolt holes 22 fixedly connected to the brake disc. The positions and number of these bolt holes 22 need to be optimized and designed according to the specific structure of the brake disc to ensure the connection strength and rigidity between the rotating member 2 and the brake disc. The size and thread specifications of the bolt holes 22 also need to match the standards of the existing brake system of the vehicle to facilitate installation and maintenance.

[0027] Furthermore, the elastic force of the elastic member 3 is designed to be greater than the torsion of the vehicle. It should be understood that this design is to ensure that the elastic member 3 will not be deformed by the torsion of the vehicle when the vehicle is driving normally, and only when the vehicle brakes, the elastic member 3 will quickly accumulate and release energy to produce a boosted braking effect. In addition, the elastic force of the elastic member 3 needs to be determined through rigorous testing and calculation to ensure that it can provide effective braking assistance at different driving speeds and loads.

[0028] Furthermore, the rotating member 2, the support arm 21 and the support frame 23 are preferably integrally formed of an aluminum alloy material. Aluminum alloy has the characteristics of being light and high-strength, which can effectively reduce the overall weight of the wheel hub 1 and improve the fuel economy of the vehicle. At the same time, the one-piece molding design not only improves the overall rigidity of the rotating member 2, but also reduces the number of assembled parts and simplifies the installation process. In order to ensure the strength and rigidity of the rotating member 2, the aluminum alloy material can be subjected to appropriate heat treatment, such as T6 heat treatment, to optimize its mechanical properties.

[0029] Furthermore, the wheel hub 1 is provided with a plurality of spokes 14, and the mounting slots 11 are arranged at the root position of the spokes 14 close to the center. This design can not only make full use of the structural space of the wheel hub 1, but also ensure the stability and reliability of the elastic member 3 during the braking process. The design of the spokes 14 needs to consider their contribution to the strength of the entire wheel hub 1, while also ensuring that they will not affect the normal operation of the elastic member 3.

[0030] Through this embodiment, the power-assisted brake hub can not only effectively improve the braking efficiency of the vehicle, but also provide additional assistance during emergency braking or high-speed driving, reduce the braking distance, and improve driving safety. In addition, this design can also effectively reduce the wear of the brake disc, brake pads and tires, thereby extending the service life of these key components and reducing the maintenance cost of the vehicle. The power-assisted brake hub of this embodiment is not only simple in structure and easy to install, but also can adapt to different vehicle models and driving conditions, and has a wide range of application prospects.

[0031] Embodiment 2: Based on the power-assisted brake hub described in the previous embodiment, this embodiment further optimizes the installation method of the elastic member 3 by providing a plurality of support arms 21 on the rotating member 2 and a plurality of first accommodating grooves 12 on the inner side of the installation groove 11, thereby achieving relative fixation of the elastic member 3 and relative displacement of the support arms 21.

[0032] A number of arms 21 are provided on the rotating member 2. The main function of these arms 21 is to resist the elastic member 3 when the vehicle brakes, thereby realizing the process of storing and releasing energy. The number and distribution of the arms 21 need to be optimized according to the size of the wheel hub 1 and the braking requirements to ensure that a stable power-assisting effect can be provided under different driving conditions. The material of the arm 21 is preferably high-strength alloy steel, which is heat-treated to improve its hardness and toughness to ensure that fatigue fracture does not occur during frequent braking. The shape of the arm 21 is designed to be arc-shaped to reduce the resistance when in contact with the elastic member 3 and improve the smoothness of its movement.

[0033] Furthermore, a plurality of first receiving grooves 12 are provided inside the installation slot 11, and these first receiving grooves 12 are used to install the elastic member 3 and provide displacement space for the support arm 21. The number and position of the first receiving grooves 12 need to match the support arm 21 to ensure that each support arm 21 can move within a suitable range. The size design of the first receiving groove 12 should fully consider the installation requirements of the elastic member 3 to avoid the problem of the elastic member 3 getting stuck or falling off during installation and use. The inner wall of the first receiving groove 12 is finely processed to improve its surface finish and reduce the friction of the support arm 21 during displacement.

[0034] Furthermore, the support arm 21 is movably mounted at one end of the first receiving groove 12, and the elastic member 3 is in contact between the support arm 21 and the other end of the first receiving groove 12. This design enables the elastic member 3 to quickly accumulate force when the vehicle brakes, and release energy through the reaction force of the support arm 21 after the braking is completed, with a tendency to drive the wheel hub 1 to reverse, thereby achieving the effect of power-assisted braking. It should be understood that the connection between the support arm 21 and the first receiving groove 12 must ensure that it is free to move, which can be a sliding connection or a rolling connection, and at the same time, it is necessary to prevent the elastic member 3 from being displaced or damaged during operation.

[0035] The benefit of this embodiment is that by providing the support arm 21 on the rotating member 2 and the first receiving groove 12 inside the mounting groove 11, the fixing effect of the elastic member 3 and the displacement range of the support arm 21 are effectively improved, thereby providing a more stable boosting effect during the vehicle braking process. In addition, this design can also reduce the wear of the elastic member 3, extend its service life, and further improve the durability of the entire braking system.

[0036] Embodiment 3: According to the power-assisted brake hub described in the previous embodiment, this embodiment further provides an end cover 4 on the inner side of the mounting slot 11, and a plurality of second receiving slots 41 corresponding to the first receiving slots 12. These second receiving slots 41 fit in the first receiving slots 12 to form a receiving cavity, which is used to better fix the elastic member 3 and provide displacement space for the support arm 21.

[0037] An end cap 4 is provided inside the installation slot 11. The function of the end cap 4 is to close the installation slot 11, prevent dust and moisture from the external environment from entering, extend the service life of the elastic member 3 and the support arm 21, and provide a receiving cavity for the installation of the elastic member 3 and the support arm 21. The material of the end cap 4 is preferably stainless steel or aluminum alloy with good corrosion resistance, and the surface is polished to ensure its sealing. The connection between the end cap 4 and the installation slot 11 can be fixed by bolts to ensure the firmness and reliability of the connection.

[0038] Furthermore, the end cover 4 is provided with a plurality of second receiving grooves 41, which correspond one to one with the first receiving grooves 12 in the installation slot 11. The design of the second receiving groove 41 needs to match the first receiving groove 12 to ensure that the two are fitted to form a complete receiving cavity. The size and shape of the second receiving groove 41 should be adapted to the elastic member 3 to facilitate the installation and fixation of the elastic member 3. It should be understood that the inner wall of the second receiving groove 41 should be finely processed to ensure its surface finish and reduce the friction of the elastic member 3 during movement.

[0039] Furthermore, a clearance notch 121 is provided on one side of the first receiving groove 12 and the second receiving groove 41 close to the rotating member 2, for making way for the support arm 21. The design of the clearance notch 121 needs to match the size and shape of the support arm 21 to ensure that the support arm 21 is not hindered when moving. This design allows the support arm 21 to move freely between the first receiving groove 12 and the second receiving groove 41, thereby providing a stable boosting effect when the vehicle is braked.

[0040] Through this embodiment, the power-assisted brake hub can not only effectively improve the braking efficiency, but also prevent the external environment from affecting the elastic member 3 and the support arm 21, thereby extending their service life. In addition, this design also improves the sealing and structural stability of the installation slot 11, ensuring that it can maintain a good working state under various driving conditions.

[0041] Embodiment 4: In order to solve the reliability problem of the connection between the support arm 21 and the elastic member 3, this embodiment provides a limiting protrusion 211 at the end where the support arm 21 contacts the elastic member 3, and provides a reinforcing seat 212 at the side of the connection between the support arm 21 and the rotating member 2 close to the elastic member 3.

[0042] The end of the support arm 21 that contacts the elastic member 3 is provided with a limiting protrusion 211, and the main function of the limiting protrusion 211 is to clamp the elastic member 3 to prevent it from being displaced or falling off during operation. The limiting protrusion 211 is designed to be hemispherical in shape, and the surface is precisely processed to ensure that the contact area and friction between it and the elastic member 3 are moderate. It should be understood that the size of the limiting protrusion 211 should match the diameter of the elastic member 3 to ensure that it can be firmly clamped on the end of the elastic member 3.

[0043] Furthermore, a reinforcing seat 212 is provided at the connection between the support arm 21 and the rotating member 2 and at one side close to the elastic member 3. The main function of the reinforcing seat 212 is to increase the connection rigidity between the support arm 21 and the rotating member 2, and ensure that the support arm 21 can withstand a large force during the braking process. The material of the reinforcing seat 212 is preferably a high-strength aluminum alloy, which is heat-treated to improve its mechanical properties.

[0044] Furthermore, the contact surface between the support arm 21 and the elastic member 3 is designed to be a smooth arc surface to reduce friction during contact and improve the movement smoothness of the support arm 21. The shape of the support arm 21 is designed to be an arc, which can better adapt to the deformation process of the elastic member 3 and ensure that it can provide a stable power-assisting effect under different driving conditions.

[0045] Through this embodiment, the power-assisted brake hub can not only effectively improve the braking efficiency, but also improve the reliability of the connection between the support arm 21 and the elastic member 3, and reduce the wear and fall-off risk of the components. In addition, the design of the reinforcement seat 212 effectively improves the rigidity of the support arm 21, ensuring that the support arm 21 will not be deformed or broken during high-load braking.

[0046] Embodiment 5: In order to solve the problem of rotational connection between the rotating member 2 and the wheel hub 1, this embodiment adopts multiple sealed bearings 5 ​​to realize the rotational connection between the rotating member 2 and the main body of the wheel hub 1, and a bolt hole 22 fixedly connected to the brake disc is provided on the rotating member 2.

[0047] The rotating member 2 and the wheel hub 1 are rotatably connected via a plurality of sealed bearings 5. The sealed bearings 5 ​​are provided to ensure smooth rotation between the rotating member 2 and the main body of the wheel hub 1, while preventing dust and moisture from entering the outside world, thereby extending the service life of the bearings. The inner and outer rings of the sealed bearings 5 ​​are made of 40Cr steel, and the surface is quenched to improve its hardness and wear resistance. It should be understood that the number and position of the sealed bearings 5 ​​need to be optimized according to the size and rotation requirements of the wheel hub 1 to ensure good rotation performance under various driving conditions.

[0048] Furthermore, the rotating member 2 is provided with bolt holes 22 fixedly connected to the brake disc. The positions and number of these bolt holes 22 need to be optimized and designed according to the specific structure of the brake disc to ensure the strength and rigidity of the connection. The size and thread specifications of the bolt holes 22 also need to match the standards of the existing braking system of the vehicle to facilitate installation and maintenance. The inner wall of the bolt hole 22 is finely processed to improve its surface finish and reduce the wear of the bolt when it is fixed.

[0049] Furthermore, the outer ring of the sealed bearing 5 is mounted on the inner wall of the hub 1 body, and the inner ring is mounted on the outer wall of the rotating member 2. This design can effectively reduce the radial runout of the bearing, improve the coaxiality between the rotating member 2 and the hub 1 body, and ensure the synchronous rotation of the two when the vehicle is running. It should be understood that the design of the sealed bearing 5 needs to take into account the high-speed requirements when the vehicle is running, as well as the high-load requirements when braking, to ensure that it can maintain good performance under various working conditions.

[0050] Through this embodiment, the power-assisted brake hub can not only realize the smooth rotation between the rotating member 2 and the main body of the hub 1, but also effectively prevent the external environment from affecting the rotating member 2 and the main body of the hub 1, thereby extending the service life of the entire brake system. In addition, the design of the bolt hole 22 makes the connection between the rotating member 2 and the brake disc more secure, and the design of the sealed bearing 5 and the bolt hole 22 further improves the stability of the power-assisted brake hub.

[0051] Embodiment 6: Based on the power-assisted brake hub described in the previous embodiment, this embodiment further optimizes the design of the support frame 23 on the rotating member 2, specifically by setting a plurality of support frames 23 on the rotating member 2, and rotatably installing a roller 24 on the support frame 23, and the roller 24 rolls on the inner wall of the installation slot 11.

[0052] The rotating member 2 is provided with a plurality of support frames 23, the main function of which is to provide additional support for the rotating member 2 to ensure that it can maintain good stability under various driving conditions. The number and distribution of the support frames 23 need to be optimized according to the size and strength requirements of the rotating member 2 to avoid excessive support frames 23 that increase the weight of the rotating member 2 and affect the fuel economy of the vehicle. The material of the support frames 23 is preferably a high-strength aluminum alloy that has been subjected to T6 heat treatment to improve its mechanical properties.

[0053] Furthermore, rollers 24 are rotatably mounted on the support frame 23, and the main function of these rollers 24 is to reduce friction during the relative rotation between the rotating member 2 and the inner wall of the mounting slot 11. The material of the rollers 24 is polyurethane, which has good wear resistance and low friction coefficient. The size design of the rollers 24 should be adapted to the inner wall of the mounting slot 11 to ensure that they will not get stuck or fall off during movement. It should be understood that the design of the rollers 24 needs to take into account the high-speed requirements of the vehicle when driving, as well as the high-load requirements during braking, to ensure that they can maintain good performance under various working conditions.

[0054] Through this embodiment, the power-assisted brake hub can not only improve the supporting effect of the rotating member 2, but also reduce the friction between the rotating member 2 and the inner wall of the installation slot 11, thereby extending the service life of the entire braking system. In addition, through the design of the roller 24, the stability of the rotating member 2 during vehicle driving and braking is ensured, thereby improving the braking effect.

[0055] Embodiment 7: In order to solve the problem of consistency of performance of the elastic member 3 under different driving conditions, this embodiment further optimizes the elastic force design of the elastic member 3 so that it will not deform when the vehicle is running, but can deform quickly when the vehicle brakes to provide a power assist effect.

[0056] The elastic force of the elastic member 3 is designed to be greater than the torque of the vehicle. Specifically, the elastic force of the elastic member 3 needs to be calculated and determined based on the maximum torque of the vehicle. This design ensures that when the vehicle is driving normally, the elastic member 3 will not be deformed due to the influence of the vehicle torque, so as to reduce unnecessary energy loss. When the vehicle brakes, the elastic member 3 can quickly accumulate force in a short time, and drive the wheel hub 1 to reverse through the reaction force during the braking process, thereby achieving the effect of power-assisted braking.

[0057] Furthermore, the elastic member 3 preferably adopts a spring structure. The material of the spring can be high-carbon spring steel, which has good elasticity and fatigue resistance after heat treatment. The diameter and length of the spring need to be optimized according to the vehicle's driving speed and load range to ensure that it can provide a stable power-assisting effect under different driving conditions. It should be understood that the design of the elastic member 3 needs to take into account its reliability in long-term use to avoid fatigue fracture due to frequent deformation and recovery.

[0058] Furthermore, in order to further optimize the elastic force of the elastic member 3, an adjustable tensioning device can be provided in the installation slot 11. By adjusting the tensioning device, the elastic force of the elastic member 3 can be accurately adjusted according to the actual needs of different vehicles. The material of the tensioning device can be stainless steel with good corrosion resistance to ensure its stability and reliability in various use environments. It can be understood that the design of the tensioning device can improve the adaptability of the elastic member 3, so that it can maintain a good working condition under different vehicle models and driving conditions.

[0059] Through this embodiment, the power-assisted brake hub can not only effectively improve the braking efficiency, but also ensure that the power-assisted effect can be maintained stably under different driving conditions. In addition, through the precise elastic design of the elastic member 3, unnecessary energy loss is reduced, and the economy of the entire braking system is improved.

[0060] Embodiment 8: Based on the power-assisted brake hub described in the above embodiment, this embodiment further optimizes the structural design of the rotating member 2, the support arm 21 and the support frame 23, and specifically improves the overall rigidity and strength through the one-piece molding technology.

[0061] The rotating member 2, the support arm 21 and the support frame 23 are integrally formed of aluminum alloy. The integrally formed design not only improves the overall rigidity and strength of the rotating member 2, but also reduces the number of assembled parts and simplifies the installation process. The choice of aluminum alloy material is based on its light weight and high strength, which can effectively reduce the overall weight of the wheel hub 1 and improve the fuel economy of the vehicle. It can be understood that the integrally formed design can ensure a tight connection between the rotating member 2 and the support arm 21, reduce the gap in movement, and thus improve the reliability of the entire braking system.

[0062] Furthermore, the integrally formed rotating member 2, support arm 21 and support frame 23 are formed by low temperature casting technology to ensure that there are no bubbles and defects inside. Low temperature casting technology can improve the density and uniformity of the material, thereby improving its mechanical properties. The cast parts also need to be subjected to appropriate heat treatment, such as T6 heat treatment, to further optimize their hardness and toughness. It should be understood that heat treatment can effectively improve the mechanical properties of aluminum alloy materials and improve their stability and durability under high load working conditions.

[0063] Furthermore, the design of the support arm 21 needs to take into account the contact area and friction between the support arm 21 and the elastic member 3. The shape of the support arm 21 can be designed to be arc-shaped to reduce the resistance when in contact with the elastic member 3 and improve the smoothness of its movement. A reinforcing seat 212 is provided at the connection between the support arm 21 and the rotating member 2, and the reinforcing seat 212 can further improve the rigidity of the support arm 21 to ensure that the support arm 21 can withstand greater force during braking. The material of the reinforcing seat 212 is also aluminum alloy, which is subjected to T6 heat treatment to improve its mechanical properties.

[0064] Through this embodiment, the power-assisted brake hub can not only improve the overall rigidity and strength of the rotating member 2, but also reduce the number of assembled parts and simplify the installation process. In addition, through low-temperature casting and heat treatment technology, it is ensured that the rotating member 2, the support arm 21 and the support frame 23 can maintain a good working condition under various working conditions.

[0065] Embodiment 9: In order to solve the installation position and distribution problems of the elastic member 3, this embodiment further optimizes the structural design of the hub 1, specifically by providing a plurality of spokes 14 on the hub 1 and providing a first receiving groove 12 at the root position of the spoke 14 close to the center.

[0066] The wheel hub 1 is provided with a plurality of spokes 14, the main function of which is to improve the overall rigidity and strength of the wheel hub 1, while providing structural space for the setting of the first receiving groove 12. The number and distribution of the spokes 14 need to be optimized according to the size and strength requirements of the wheel hub 1 to ensure that a stable support effect can be provided under various driving conditions. The material of the spokes 14 is preferably a high-strength aluminum alloy, which has undergone T6 heat treatment to improve its mechanical properties. It should be understood that the design of the spokes 14 needs to fully consider its contribution to the strength of the wheel hub 1, while also ensuring that it will not affect the normal operation of the elastic member 3.

[0067] Furthermore, the first receiving groove 12 is arranged at the root position of the spoke 14 close to the center. This design utilizes the structural space of the spoke 14 to ensure that the installation position and distribution of the elastic member 3 are reasonable. The size and shape of the first receiving groove 12 need to be adapted to the elastic member 3 to facilitate the installation and fixation of the elastic member 3. The inner wall of the first receiving groove 12 is finely processed to improve its surface finish and reduce the friction of the elastic member 3 during movement. It can be understood that the design of the first receiving groove 12 can ensure that the elastic member 3 can maintain stable performance under different driving conditions and improve its service life.

[0068] Furthermore, the number and position of the first receiving grooves 12 need to match the support arms 21 to ensure that each support arm 21 can move within an appropriate range. The design of the first receiving grooves 12 also needs to take into account the high-speed requirements of the vehicle when driving and the high-load requirements during braking to ensure that it can maintain good performance under various working conditions. It is understandable that the design of the first receiving grooves 12 needs to comprehensively consider the structural strength and movement smoothness to ensure the normal operation of the elastic member 3 and the support arm 21.

[0069] Through this embodiment, the power-assisted brake hub can not only improve the overall rigidity and strength of the hub 1, but also ensure that the installation position and distribution of the elastic member 3 are reasonable, thereby providing a more stable power-assisted effect during the vehicle braking process. In addition, through the reasonably designed first receiving groove 12, the wear of the elastic member 3 is reduced, its service life is extended, and the reliability of the entire braking system is improved.

[0070] Embodiment 10: Based on the power-assisted brake hub described in the previous embodiment, this embodiment further optimizes the type selection of the elastic member 3 .

[0071] Specifically, the type of the elastic member 3 can be one of a spring, an air spring, a hydraulic spring or a rubber spring. By selecting different types of elastic members 3, optimization can be performed according to the specific driving conditions and braking requirements of the vehicle. For example, for a vehicle traveling at high speed, a hydraulic spring can be selected to provide a higher elastic force and a more stable boosting effect. For a vehicle that requires frequent braking, a rubber spring can be selected to provide better fatigue resistance and a longer service life.

[0072] Furthermore, taking the spring as an example, the material of the spring is high-carbon spring steel, which is heat-treated to improve its elasticity and fatigue resistance. The diameter and length of the spring need to be optimized according to the vehicle's driving speed and load range to ensure that it can provide a stable boost effect under different driving conditions. The spring can be installed in a pre-compression manner to ensure that it will not deform when the vehicle is running, and can quickly store and release energy when braking.

[0073] Furthermore, taking the air spring as an example, the design of the air spring needs to take into account the change in its elastic force under different air pressure conditions. The air pressure of the air spring can be adjusted according to the actual driving conditions of the vehicle by setting an air pressure regulating device, thereby optimizing its elastic force. The inner and outer walls of the air spring need to be finely processed to improve its sealing and service life. It is understandable that the design of the air spring can effectively adapt to different driving conditions and improve the adaptability of the braking system.

[0074] Furthermore, taking hydraulic springs as an example, the design of hydraulic springs needs to take into account the change in their elastic force under different hydraulic conditions. The hydraulic pressure of the hydraulic spring can be adjusted according to the actual driving conditions of the vehicle by setting a hydraulic pressure regulating device, thereby optimizing its elastic force. The internal structure of the hydraulic spring needs to be designed with seals to prevent hydraulic oil leakage and ensure its long-term stable performance. It should be understood that the design of the hydraulic spring can provide higher elastic force and more stable power-assisting effect, which is suitable for vehicles traveling at high speeds.

[0075] Furthermore, taking rubber springs as an example, the material of rubber springs is high-performance synthetic rubber, which is formulated and processed to improve its elasticity and aging resistance. The design of rubber springs needs to take into account the performance changes under different temperature and pressure conditions to ensure that they can maintain stable performance under various working conditions. The installation method of rubber springs can be embedded installation to ensure that they will not deform when the vehicle is running, but can store force when braking.

[0076] The benefit of this embodiment is that by using different elastic members 3, such as springs, air springs, hydraulic springs or rubber springs, the braking requirements of different vehicles can be met.

[0077] The beneficial effects of the present invention are specifically embodied in that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power-assisted brake hub, characterized in that: A rotating member (2) is provided at the location where the wheel hub (1) is mounted on the vehicle, and a mounting groove (11) is provided at the center of the wheel hub (1). The rotating member (2) is movably mounted on the mounting groove (11), and an elastic member (3) is installed between the rotating member (2) and the mounting groove (11) for providing a reaction force on the wheel hub (1) during braking. When driving, the rotating member (2) rotates synchronously with the wheel hub (1). When braking, the wheel hub (1) continues to rotate relative to the rotating member (2) in the direction of movement of the vehicle, and the elastic member (3) accumulates force to drive the wheel hub (1) to reverse, thereby assisting the braking of the vehicle. The elastic force of the elastic member (3) is greater than the torsion of the vehicle; when the vehicle is running, the elastic member (3) does not deform; when the vehicle brakes, the elastic member (3) deforms; The elastic member (3) is one of a spring, an air spring, a hydraulic spring or a rubber spring.

2. The power-assisted brake hub according to claim 1, characterized in that: The rotating member (2) is provided with a plurality of supporting arms (21) for contacting the elastic member (3); a plurality of first receiving grooves (12) are provided inside the mounting slot (11) for mounting the elastic member (3) and providing displacement space for the supporting arms (21); the supporting arms (21) are movably mounted at one end of the first receiving groove (12); and the elastic member (3) contacts between the supporting arms (21) and the other end of the first receiving groove (12).

3. The power-assisted brake hub according to claim 2, characterized in that: An end cover (4) is provided inside the installation slot (11), and a plurality of second receiving slots (41) are provided on the end cover (4), each corresponding to the first receiving slot (12), and the first receiving slot (12) and the second receiving slot (41) are fitted together to form a receiving cavity; and a clearance notch (121) is provided on one side of the first receiving slot (12) and the second receiving slot (41) close to the rotating member (2), for making way for the support arm (21).

4. The power-assisted brake hub according to claim 2, characterized in that: One end of the support arm (21) in contact with the elastic member (3) is provided with a limiting protrusion (211) for clamping the elastic member (3), and a reinforcing seat (212) is provided at the connection between the support arm (21) and the rotating member (2) and on a side close to the elastic member (3).

5. The power-assisted brake hub according to claim 1, characterized in that: The rotating member (2) is rotatably connected to the wheel hub (1) via a plurality of sealed bearings (5), and the rotating member (2) is provided with a bolt hole (22) fixedly connected to the brake disc.

6. The power-assisted brake hub according to claim 2, characterized in that: The rotating member (2) is also provided with a plurality of support frames (23), on which rollers (24) are rotatably mounted, and the rollers (24) roll on the inner wall of the mounting slot (11).

7. The power-assisted brake hub according to claim 6, characterized in that: The rotating member (2), the supporting arm (21) and the supporting frame (23) are integrally formed to improve rigidity.

8. The power-assisted brake hub according to claim 2, characterized in that: The wheel hub (1) is provided with a plurality of wheel spokes (14), and the first accommodating groove (12) is arranged at a root position of the wheel spoke (14) close to the center.

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