CN116838729A - Brake disc, brake and wheel - Google Patents

Abstract

The embodiment of the application provides a brake disc, a brake and a wheel. The brake disc is adapted to form part of a brake in the wheel and the friction discs and to perform or release service braking by co-operation. The brake disc comprises a disc body and a reset module, wherein a first part of the reset module is arranged in the disc body, and a second part of the reset module normally extends out of the disc body and is used for pushing the friction plate to be separated from the disc body in a non-braking procedure so as to eliminate dragging moment between the friction plate and the disc body and improve the endurance of the vehicle.

Description

Brake disc, brake and wheel

Technical Field

The application relates to the field of vehicle braking, in particular to a brake disc, a brake and wheels.

Background

When a vehicle is braked, pedal force of a driver is transmitted to a wheel end through hydraulic amplification and acts on a friction plate, the friction plate is pressed on a rotating brake disc, and the vehicle is braked through friction force generated by pressure between the friction plate and the rotating brake disc. When the driver releases the brake, if the system does not have an automatic return mechanism, the friction plate can be continuously attached to the brake disc, and drag torque can be generated between the friction plate and the brake disc, so that the oil consumption, the cruising, the non-braking noise, the abrasion and the like of the vehicle are influenced.

Disclosure of Invention

Aspects of the present application provide a brake rotor, brake and wheel that address or at least alleviate to some extent the problem of drag torque being easily generated between the friction plate and the brake rotor.

The embodiment of the application provides a brake disc which is suitable for cooperation with a friction plate in a vehicle. The brake disc includes: the tray body is provided with a mounting hole; and the reset module is arranged in the mounting hole, the second part extends out of the mounting hole in a normal state and is used for pushing the friction plate to be separated from the disc body, and the reset module can reciprocate outside the mounting hole and inside the mounting hole.

Optionally, the reset module includes flexible unit and head, flexible unit set up in the mounting hole, and the normal push the head stretches out in outside the mounting hole, wherein the head can be under external force effect submergence in the mounting hole, and after external force release is replied outside the mounting hole.

Optionally, the telescopic unit includes an elastic member, where the elastic member is connected to the head, is compressed by the head under the action of the external force, and pushes the head to extend out of the mounting hole by an elastic restoring force after the external force is released.

Optionally, the telescopic unit includes a first magnetic member and a second magnetic member that are magnetically repulsive, the second magnetic member and the first magnetic member are separated by a distance and are connected to the head, where the head may be immersed in the mounting hole when the external force is greater than the repulsive force of the first magnetic member and the second magnetic member, and return to the outside of the mounting hole through the repulsive force after the external force is released.

Optionally, the reset module further includes a sleeve, the sleeve block in the mounting hole, the telescopic unit with the head set up respectively in the sleeve, just the head can be relative the sleeve displacement, wherein telescopic inner peripheral face encircles and is provided with the bulge loop, the head includes broad body and narrow body, telescopic unit normal push support the broad body contact in the bulge loop, narrow body pass through the bulge loop stretch out in the sleeve with outside the mounting hole.

Optionally, the mounting hole is a blind hole, and the telescopic unit is connected between the bottom of the blind hole and the head.

Optionally, the mounting hole is a through hole, the reset module includes a plurality of heads, and the heads are respectively connected to two opposite ends of the telescopic unit, and normally extend out of two opposite sides of the tray body.

Optionally, a circumferential tangential plane of a side of the head portion extending out of the mounting hole is semicircular or tapered.

Optionally, the head is composed of a smoking material.

Optionally, the coefficient of friction of the second portion is less than the coefficient of friction of the friction plate.

Optionally, the brake disc includes a plurality of the module that resets, just the disk body is provided with a plurality of the mounting hole, a plurality of the mounting hole is followed the circumference interval arrangement of disk body to the symmetry sets up, a plurality of the module that resets corresponds set up in a plurality of in the mounting hole.

A brake, comprising: the brake disc comprises a disc body and a reset module, wherein the disc body is provided with a mounting hole, a first part of the reset module is arranged in the mounting hole, and a second part of the reset module normally extends out of the mounting hole and can reciprocate out of the mounting hole and in the mounting hole; and a friction plate disposed at one side of the brake disc and corresponding to the reset module; the friction plate can be contacted with the surface of the brake disc and pressed against the second part to be immersed in the mounting hole, or pushed by the second part on the surface to be separated from the brake disc.

A wheel comprising a hub and a brake, the brake comprising: the brake disc is arranged on the hub, the brake disc comprises a disc body and a reset module, the disc body is provided with a mounting hole, a first part of the reset module is arranged in the mounting hole, a second part of the reset module normally extends out of the mounting hole and can reciprocate out of the mounting hole and in the mounting hole; and a friction plate disposed at one side of the brake disc and corresponding to the reset module; the friction plate can be contacted with the surface of the brake disc and pressed against the second part to be immersed in the mounting hole, or pushed by the second part on the surface to be separated from the brake disc.

In the embodiment of the application, through the arrangement mode that the head of the resetting module can reciprocate inside and outside the disc body, when the vehicle slides or speeds up and the like and releases the brake, and the friction plate is pushed by the head of the resetting module to separate from the disc body of the brake disc and returns to the position separated from the brake disc by a preset distance when the vehicle slides through the position of the resetting module, thereby achieving the effect of resetting the friction plate. Therefore, the friction plate and the brake disc can be kept in a separated state all the time under the action of no pressure (namely in a mode of releasing the brake), so that the generation of dragging moment is avoided, the oil consumption, non-braking noise and abrasion of the vehicle can be reduced, and the continuous endurance of the vehicle can be improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

fig. 1 is a schematic plan view of a brake applied to a vehicle according to an embodiment of the present application.

Fig. 2 is a top view of a brake disc according to an embodiment of the present application.

Fig. 3 is a side view of a brake disc according to an embodiment of the application.

Fig. 4 is a partial cross-sectional view of fig. 3.

Fig. 5 is a combination diagram of a reset module according to an embodiment of the application.

Fig. 6 is an exploded view of a reset module according to an embodiment of the present application.

Fig. 7 and 8 are schematic views of the usage dynamics of the brake according to the embodiment of the present application.

Fig. 9 is a partial cross-sectional view of a brake disc according to another embodiment of the present application.

Fig. 10 is a partial cross-sectional view of a brake disc according to other embodiments of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

Please refer to fig. 1. The embodiment of the present application provides a brake disc 10 adapted to be disposed on a hub h of a wheel W to constitute a part of a brake 1 with a friction plate 20 and to perform a deceleration operation of the running wheel W on a vehicle C by cooperation with the friction plate 20.

Referring to fig. 2 to 6, the brake disc 10 includes a disc body 110 and a reset module 120. The disc 110 includes an inner ring 111 and an outer ring 112, wherein the inner ring 111 is connected to the hub, the outer ring 112 is provided with a mounting hole 113, which may be, but not limited to, a through hole penetrating through two opposite sides of the disc 110 or a blind hole not penetrating through the disc, and the embodiment is exemplified by, but not limited to, a through hole.

The reset module 120 may be, but is not limited to being, removably disposed within the mounting hole 113. The reset module 120 includes a sleeve 121, a telescopic unit 122, and two heads 123. The outer diameter of the sleeve 121 is matched with the inner diameter of the mounting hole 113, for example, the outer diameter of the sleeve 121 is equal to or slightly larger than the inner diameter of the mounting hole 113, so that the sleeve 121 can be penetrated into the mounting hole 113 in the axial direction in an interference fit manner, the outer peripheral surface abuts against the inner wall surface of the mounting hole 113, and the reset module 120 is stably arranged on the disc body 110 and is not easy to separate. In addition, the length of the sleeve 121 is not greater than the thickness of the disc 110, at least not greater than the thickness of the disc 110 at the installation location, for example, equal to or slightly less than the thickness of the disc 110, so that the opposite ends of the sleeve 121 can be aligned with the opposite sides of the disc 110 or retracted from the opposite sides of the disc 110, to avoid structural interference between the rotation of the disc 110 and the friction plate 20, and to prevent service braking. The telescopic unit 122 may be, but is not limited to, provided in the sleeve 121 in the form of an elastic member, for example, in the form of a spring or a leaf spring penetrating the sleeve 121 along the axial center of the sleeve 121. The two heads 123 are respectively connected to opposite ends of the telescopic unit 122, and a first portion of each head 123 is located in the mounting hole 113, and a second portion of each head 123 normally extends out of the mounting hole 113, wherein the heads 123 can reciprocate in and out of the mounting hole, so as to completely sink into the mounting hole or at least partially extend out of the mounting hole, for example, the telescopic unit 122 is compressed under the action of external force, so that one side extending out of the mounting hole 113 is sunk into the sleeve 121, that is, retracted into the mounting hole 113; after the external force is removed, the telescopic unit 122 is pushed by the elastic restoring force, and then again protrudes out of the mounting hole 113.

The head 123 may be fixed on the telescopic unit 122, and the distance of the head 123 extending out of the mounting hole 113 is controlled by the displacement stroke of the telescopic unit 122, so as to prevent the head 123 from falling out of the tray 10 after being separated from the reset module 120; or by structural restraint to prevent disengagement of the head 123. As shown in fig. 5 and 6, in some embodiments of the present application, one end of the head 123 may be provided as a wide body 1231 having a larger outer diameter, and the other end may be provided as a narrow body 1232 having a smaller outer diameter, such that the outer circumferential surface of the head 123 forms a stepped structure, wherein the outer diameter of the wide body 1231 is matched with the inner diameter of the sleeve 121, and a convex ring 1211 is circumferentially provided at the end edge of the sleeve 121, and the inner diameter of the convex ring 1211 is matched with the outer diameter of the narrow body 1232 but smaller than the outer diameter of the wide body 1231, such that the narrow body 1232 may protrude out of the sleeve 121 and the mounting hole 113 through the convex ring 1211 when the head 123 is provided to the sleeve 121, and such that the wide body 1231 is stopped by the convex ring 1211 to be stopped on the sleeve 121, thereby preventing the head 123 from being separated from the sleeve 121. It is to be understood that the above-mentioned protruding ring 1211 may be disposed around the inner edge of the sleeve 121 in a circle, or may be disposed around the inner edge of the sleeve 121 in a plurality of protruding blocks at intervals, so that the head 123 may contact the protruding ring 1211 when being pushed by the telescopic unit 122, so as to block the displacement of the wide body 1231 by the protruding ring 1211.

The application of the brake disc according to the embodiment of the application is further described below through application scenarios.

Referring to fig. 5 to 8, a brake disc 10 according to an embodiment of the present application is adapted to be arranged on a hub of a wheel for forming part of a brake 1 with a friction plate 20 in the wheel. In general, the plurality of friction plates 20 are located on opposite sides of the brake disc 10, respectively, and are normally spaced apart from the disc body 110 of the brake disc 10 by a predetermined distance (as shown in fig. 7), wherein the reset module 120 of the brake disc 10 corresponds exactly to the friction plates 20, which may be, but is not limited to, a center position corresponding to the friction plates 20, and is rotatable relative to the friction plates 20 when the wheel rotates. When the vehicle needs to be braked, when the pedal force of the driver is transmitted to the wheel end by hydraulic amplification and acts on the friction plate 20, the friction plate 20 is pressed against the rotating brake disc 10, and the vehicle is braked by the friction force generated by the pressure therebetween, thereby decelerating the vehicle. In the braking process, the friction plate 20 is pressed against the disc body 110 of the brake disc 10, and when passing through the reset module 120, an external force is applied to the head 123 of the reset module 120, so that the head 123 originally extending out of the mounting hole 113 is pressed into the disc body 110, and therefore, the normal service braking between the friction plate 20 and the brake disc 10 is not affected.

When the driver releases the brake and the pressure applied to the friction plate 20 is released during the sliding or accelerating of the vehicle, and at this time, when the friction plate 20 is stroked over the position of the return module 120, the head 123 of the return module 120 is acted by the elastic force of the telescopic unit to push the friction plate 20 back from the surface of the disc body 110, so that the friction plate 20 returns to the position spaced from the brake disc 10 by a predetermined distance, thereby achieving the effect of returning the friction plate 20 (as shown in fig. 8). Because the friction plate 20 and the brake disc 10 are always kept in a separated state under the action of no pressure under the action of the resetting module 120, dragging moment can be avoided between the friction plate 20 and the brake disc 10, so that the oil consumption, non-braking noise and abrasion of the vehicle are reduced, and the cruising power of the vehicle is improved.

It should be noted that, in order to further reduce the influence of the reset module 120 on the service brake and better push the friction plate 20 back to the predetermined distance during the braking and non-braking processes, in some embodiments of the present application, the circumferential section of the second portion of the head 123 of the reset module 120 extending out of the mounting hole 113 may be semicircular or tapered, for example, at least when the head 123 rotates with the disc 110 and contacts the friction plate 20, a hemispherical structure, a tapered structure, or an elongated structure with a curved surface, an arc surface, or an inclined surface is disposed on the side contacting the friction plate 20, where the elongated structure extends along the radial direction of the disc 110, so as to facilitate the even distribution of the pressure on the contact surface with the friction plate 20, and may push the friction plate 20 with a more uniform force. Therefore, by the configuration mode that the circumferential tangential plane is semicircular or conical, after the head 123 contacts with the friction plate 20 during rotation, an outward thrust can be smoothly generated, or the friction plate 20 is pressed back into the mounting hole 113 and the sleeve 121, so that no tangential force is generated on the friction plate 20, relative rotation of the friction plate 20 is blocked, and the cooperation between the two is smoother. In addition, in some embodiments of the present application, the friction coefficient between the constituent materials of the head 123 of the reset module 120 and the constituent materials of the friction plate 20 is different, so that at least the friction coefficient of the second portion of the head 123 protruding out of the mounting hole 113 is smaller than the friction coefficient of the friction plate 20, thereby reducing the friction force when the two are in contact, eliminating the drag torque, enabling the friction plate 20 not to be affected by the reset module 120 during braking, better applying pressure on the disc body 110 of the brake disc 10, and better pushing the friction plate 20 away from the disc body 110 during non-braking by the head 123 of the reset module 120.

Furthermore, in other embodiments of the application, the head 123 of the reset module 120 may also be composed of a smoking material. In the application scenario of this embodiment, the present application may be applied to propaganda photographing of racing vehicles or general vehicles or based on personal preference of users, when the vehicles are over-bent or drift at high speed, when pedal force of the driver is transferred to wheel end through hydraulic amplification and acts on friction plate 20, friction plate 20 is pressed on rotating brake disc 10, and when passing through the position of reset module 120, head 123 of reset module 120 is rubbed by friction plate 20, so that a great amount of smoke is generated by smoke generating material, cool visual effect can be achieved, and smoke can be generated according to requirements without being influenced by weather environment.

Referring to fig. 9, in another embodiment of the present application, a mounting hole 113 on a disc body 110 is a blind hole that does not penetrate the disc body 110, and a reset module 120 includes a telescopic unit 122 and a head 123. The telescopic unit 122 is inserted into the mounting hole 113 in the form of a spring or a spring sheet, one end of the telescopic unit 122 is fixed at the bottom of the mounting hole 113, the other end is connected to the head 123, and the first part of the head 123 is maintained in the mounting hole 113, and the second part normally extends out of the mounting hole 113. The outer diameter of the head 123 is matched with the inner diameter of the mounting hole 113, so that the head 123 can be guided by the inner wall surface of the mounting hole 113 when reciprocally moving in the mounting hole 113 and outside the mounting hole 113, and stably slides along the axis direction of the mounting hole.

Referring to fig. 10, in another embodiment of the present application, the telescopic unit 122 includes a first magnetic member 1221 and a second magnetic member 1222 that are magnetically repulsive, the first magnetic member 1221 is disposed in the sleeve 121, the second magnetic member 1222 is disposed on the head 123 and spaced from the first magnetic member 1221, such that the head 123 is normally pushed against the collar 1211 of the sleeve 121 by magnetic force, and at least a portion thereof extends out of the mounting hole 113. The number of the first magnetic pieces 1221 and the second magnetic pieces 1222 may be configured according to the form of the mounting hole 113, for example, when the mounting hole 113 is a blind hole, the configuration of the single first magnetic piece 1221 and the single second magnetic piece 1222 may be adopted; and when the mounting hole 113 is perforated, a single first magnetic member 1221 and two second magnetic members 1222, or the same number of first magnetic members 1221 and second magnetic members 1222 may be arranged. In the present embodiment, the arrangement of the single first magnetic member 1221 and the two second magnetic members 1222 respectively located at two opposite sides of the first magnetic member 1221 is taken as an example, but not limited thereto.

In the application scenario of the present embodiment, when the vehicle needs to be braked, when the pedal force of the driver is transmitted to the wheel end by hydraulic amplification and acts on the friction plate, the friction plate presses against the rotating brake disc 10, and when the disc body 110 passes through the return module 120, an external force is applied to the head 123 of the return module 120. The external force is greater than the repulsive force of the first magnetic member 1221 and the second magnetic member 1222, so that the head 123, which is originally protruded from the mounting hole 113, is pressed into the disc body 110, thereby performing service braking between the friction plate and the brake disc 10.

When the driver releases the brake, the pressure applied to the friction plate is released during the sliding or accelerating process of the vehicle, and at this time, when the friction plate is stroked over the position of the reset module 120, the head 123 of the reset module 120 is sprung back by the repulsive magnetic force, and the friction plate is ejected outwards from the surface of the disc body 110, so that the friction plate returns to a position spaced from the brake disc 10 by a predetermined distance, thereby achieving the effect of resetting the friction plate. In this way, the friction plate and the brake disk 10 can be maintained in a separated state, and the generation of drag torque can be avoided.

Although the above embodiments are illustrated with a brake disc comprising a single reset module. It will be appreciated that in some embodiments of the application, the brake disc may include a plurality of reset modules and a corresponding number of a plurality of mounting holes provided in the disc body. Wherein the plurality of mounting holes are arranged at intervals along the circumference of the tray body or are uniformly arranged around the tray body. The plurality of reset modules can be arranged in the plurality of mounting holes one by one or can be selectively arranged in a plurality of the mounting holes; alternatively, the resetting modules with the head parts provided with the fuming materials and the resetting modules without the head parts provided with the fuming materials are alternately arranged or randomly arranged in the plurality of mounting holes. It should be noted that these reset modules are symmetrically distributed on the disc body so as to maintain dynamic balance when the brake disc rotates and ensure the stability of driving.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims (13)

1. A brake disc adapted for cooperation with a friction plate in a vehicle, comprising:

the tray body is provided with a mounting hole; and

and the reset module is arranged in the mounting hole, the second part extends out of the mounting hole in a normal state and is used for pushing the friction plate to be separated from the disc body, and the reset module can reciprocate outside the mounting hole and inside the mounting hole.

2. The brake disc of claim 1, wherein the reset module comprises a telescoping unit and a head, the telescoping unit being disposed within the mounting hole and normally pushing against the head to extend out of the mounting hole, wherein the head is submerged within the mounting hole under an external force and returns out of the mounting hole after the external force is released.

3. A brake disc according to claim 2, wherein the telescopic unit comprises an elastic member connected to the head portion and compressed by the head portion under the external force, and urged by an elastic restoring force to protrude out of the mounting hole after the external force is released.

4. The brake disc of claim 2, wherein the telescoping unit includes first and second magnetically opposing magnetic members spaced apart by a distance and connected to the head, wherein the head is submerged in the mounting hole when the external force is greater than the repulsive force of the first and second magnetic members, and returns to the outside of the mounting hole by the repulsive force after the external force is released.

5. The brake disc of claim 2, wherein the reset module further comprises a sleeve, the sleeve is clamped in the mounting hole, the telescopic unit and the head are respectively arranged in the sleeve, the head can be displaced relative to the sleeve, a convex ring is circumferentially arranged on the inner peripheral surface of the sleeve, the head comprises a wide body and a narrow body, the telescopic unit is normally pushed against the wide body to contact with the convex ring, and the narrow body extends out of the sleeve and the mounting hole through the convex ring.

6. A brake disc according to claim 2, wherein the mounting hole is a blind hole and the telescopic unit is connected between the bottom of the blind hole and the head.

7. A brake disc according to claim 2, wherein the mounting hole is perforated, and the reset module includes a plurality of heads respectively connected to opposite ends of the telescopic unit and normally extending out of opposite sides of the disc body.

8. A brake disc according to claim 2, wherein the circumferential section of the side of the head portion projecting from the mounting hole is semicircular or tapered.

9. A brake disc according to claim 2, wherein the head portion is comprised of a smoking material.

10. A brake disc according to claim 1, wherein the coefficient of friction of the second portion is less than the coefficient of friction of the friction plate.

11. The brake disc of claim 1, comprising a plurality of said reset modules, wherein said disc body is provided with a plurality of said mounting holes, wherein a plurality of said mounting holes are spaced along the circumference of said disc body and are symmetrically disposed, and wherein a plurality of said reset modules are disposed in a plurality of said mounting holes.

12. A brake, comprising:

the brake disc comprises a disc body and a reset module, wherein the disc body is provided with a mounting hole, a first part of the reset module is arranged in the mounting hole, and a second part of the reset module normally extends out of the mounting hole and can reciprocate out of the mounting hole and in the mounting hole; and

the friction plate is arranged on one side of the brake disc and corresponds to the reset module;

the friction plate can be contacted with the surface of the brake disc and pressed against the second part to be immersed in the mounting hole, or pushed by the second part on the surface to be separated from the brake disc.

13. A wheel comprising a hub and a brake, the brake comprising:

the brake disc is arranged on the hub, the brake disc comprises a disc body and a reset module, the disc body is provided with a mounting hole, a first part of the reset module is arranged in the mounting hole, a second part of the reset module normally extends out of the mounting hole and can reciprocate out of the mounting hole and in the mounting hole; and

the friction plate is arranged on one side of the brake disc and corresponds to the reset module;

the friction plate can be contacted with the surface of the brake disc and pressed against the second part to be immersed in the mounting hole, or pushed by the second part on the surface to be separated from the brake disc.