CN210484463U

CN210484463U - Brake disc

Info

Publication number: CN210484463U
Application number: CN201921127673.8U
Authority: CN
Inventors: 童昆
Original assignee: Shenzhen Chezvi Auto Parts Co ltd
Current assignee: Shenzhen Chezvi Auto Parts Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-05-08
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a brake disc, which comprises a fixed disc body and a brake disc body which are arranged in a split way, wherein the fixed disc body and the brake disc body are detachably connected through a connecting component; the edge of the fixed disk body is provided with a plurality of grooves, the grooves correspond to the connecting blocks one by one, and the area of each groove is smaller than that of each connecting block; the fixed disc body is stacked on the brake disc body, so that the axial lead of the fixed disc body is superposed with the axial lead of the brake disc body, and each connecting block is aligned with the corresponding groove; the connecting assembly comprises a spacer bush and a fastener, the spacer bush comprises a bush body arranged in the groove and a supporting plate formed by extending outwards from the top surface of the bush body, the supporting plate is pressed on one surface, far away from the brake disc body, of the fixed disc body, and the fastener is used for fastening and connecting the spacer bush and the brake disc body. The utility model provides a brake disc, the shock attenuation is effectual, and application scope is wide, and the reliability is high.

Description

Brake disc

Technical Field

The utility model relates to an automobile brake technical field, specifically speaking relates to a brake disc.

Background

The disc brake comprises a brake disc fixed on the rolling wheel and brake calipers installed on the locomotive, the brake disc is fixedly connected with the rolling wheel and moves synchronously, and the brake calipers can generate sliding friction with the brake disc through opening and closing to form braking force, so that the effects of reducing speed and stopping the vehicle are achieved.

The chinese patent application No. 201721530241.2 discloses a brake disc of a two-wheeled motor vehicle, including the fixed disk, the brake disc of fixed disk outline is located to the components of a whole that can function independently cover, equal circumference is provided with a plurality of breachs that can dock each other on the annular contact surface of brake disc and fixed disk, wear to be equipped with the rivet that is used for fixed brake disc and fixed disk in the breach, the end of wearing to establish of rivet is equipped with the rigidity gasket, be provided with the elastic gap between rigidity gasket and the brake disc and rigidity gasket and the fixed disk, the cover is equipped with the elasticity awl gasket that is located the elastic gap on the rivet, the elastic gap width is greater than elasticity awl gasket thickness. The elastic conical gasket can relieve the axial locking force of the rivet on the brake disc and the fixed disc, and the effect of relieving vibration in the braking process is achieved. However, in the connection mode, the fixed disc is not in contact with the annular working disc at all, force is transferred only by an anti-lock structure, the reliability is poor, and the fixed disc cannot be applied to a large-mass car.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brake disc, the shock attenuation is effectual, and application scope is wide, and the reliability is high.

The utility model discloses a technical scheme that brake disc adopted is:

a brake disc comprises a fixed disc body and a brake disc body which are arranged in a split mode, wherein the fixed disc body and the brake disc body are detachably connected through a connecting assembly, the brake disc body comprises an inner annular surface, and a plurality of connecting blocks protruding towards the center of the inner annular surface are uniformly distributed on the inner annular surface; the edge of the fixed disc body is provided with a plurality of grooves, the grooves correspond to the connecting blocks one by one, and the area of each groove is smaller than that of each connecting block; the fixed disc body is stacked on the brake disc body, so that the axis of the fixed disc body is superposed with the axis of the brake disc body, and each connecting block is aligned with the corresponding groove; coupling assembling includes spacer and fastener, the spacer is including locating the cover body in the recess to and the backup pad that outwards extends the formation from cover body top surface, the backup pad pressure is located keeping away from brake disk body one side of fixed disk body, the fastener is used for fastening connection spacer and brake disk body.

As preferred scheme, coupling assembling still includes the spacer, the spacer includes that the arc piece that encircles the recess inner wall setting and the backing sheet that extends the formation from the arc piece top is buckled, the backup pad pressure of spacer is established on the backing sheet.

Preferably, the connecting assembly further comprises an elastic sheet, the elastic sheet is pressed on the supporting plate of the spacer bush by the fastening piece and used for providing upward pretightening force for the fastening piece, and the left side and the right side of the elastic sheet extend beyond the supporting plate and are bent downwards to the supporting plate.

Preferably, one side of the elastic sheet is bent downwards and extends downwards along the sleeve body for a preset distance to form a first clamping sheet.

Preferably, the fastener is a bolt and comprises a head and a threaded screw, and the head is provided with a side plane; the other side of the elastic sheet is bent upwards, and a preset distance is extended upwards along the side plane of the head to form a second card.

As a preferred scheme, the head is pressed on the elastic sheet, and the screw rod sequentially penetrates through the elastic sheet and the spacer bush and is in threaded connection with the connecting block.

Preferably, the surface of the brake disc body is provided with a plurality of pattern grooves.

Preferably, the maximum edge of the fixed disc body does not exceed the inner annular surface of the brake disc body.

As the preferred scheme, brake disk body and connecting block integrated into one piece, connecting block thickness is less than brake disk body thickness.

Preferably, one side of the fixed disc body, which is close to the brake disc body, protrudes to form an annular step, and the annular step is opposite to the top surface of the connecting block so as to assist in positioning the fixed disc body and the brake disc body.

The utility model discloses a brake disc's beneficial effect is: the fixed disc body and the brake disc body are arranged in a split mode, the fixed disc body is arranged on the brake disc body in a stacked mode, the axial lead of the fixed disc body is made to coincide with the axial lead of the brake disc body, and meanwhile each connecting block is aligned to the corresponding groove. Arranging the spacer bush in the groove, enabling the supporting plate of the spacer bush to be pressed on one surface of the fixed disc body, and utilizing a fastener to fasten and connect the spacer bush and the brake disc body;

in the braking process, axial vibration occurs to the brake disc body due to uneven stress on two sides of the brake disc body, the vibration is transmitted to the connecting block and the groove and is consumed by deformation of the connecting block and small clearance floating of the spacer bush and the fastening piece, and the vibration for fixing the disc body is reduced; the spacer sleeve reduces the clearance between the fastener and the inner wall of the groove, so that the displacement of the fastener in the braking process is reduced, and the reliability is high; because the recess area is less than the connecting block area, after the connecting block aligns with the recess that corresponds, surpass the direct butt of part connecting block of recess on fixed disk body, when the brake atress, pass power and rely on the frictional force between fixed disk body and the connecting block to and coupling assembling realizes jointly, and the reliability is high, and application scope is wide.

Drawings

Fig. 1 is a schematic structural diagram of the brake disc of the present invention.

Figure 2 is an explosion diagram of the brake disc of the utility model.

Figure 3 is the structure schematic diagram of the connecting component of the brake disc of the utility model.

Figure 4 is a bottom view of the brake disc of the present invention.

Detailed Description

The invention will be further elucidated and described with reference to the following embodiments and drawings in which:

referring to fig. 1 and 2, a brake disc is characterized in that the brake disc includes a fixed disc body 10 and a brake disc body 20 which are separately arranged, the fixed disc body 10 is installed and fixed on a rotating shaft of a motor vehicle, the brake disc body 20 is detachably connected with the fixed disc body 10 through a connecting assembly 30, and the brake disc body 20 is in contact with a friction plate of a braking system during braking.

The brake disc body 20 comprises an inner ring surface 21, and a plurality of connecting blocks 22 protruding towards the center of the inner ring surface 21 are uniformly distributed on the inner ring surface 21. The edge of the fixed disk body 10 is provided with a plurality of grooves 11, the grooves 11 correspond to the connecting blocks 22 one by one, wherein the area of each groove 11 is smaller than that of each connecting block 22, and when the grooves 11 are aligned to the connecting blocks 22, part of the connecting blocks 22 are directly contacted with the fixed disk body 10. The fixing disc body 10 is stacked on the brake disc body 20 such that the axial line of the fixing disc body 10 coincides with the axial line of the brake disc body 20, and each connecting block 22 is aligned with the corresponding groove 11.

Referring to fig. 2 and 3, the connecting assembly 30 includes a spacer 31 and a fastening element 32, the spacer 31 includes a sleeve 311 disposed in the recess 11, and a supporting plate 312 extending outward from a top surface of the sleeve 311, the supporting plate 312 is pressed on a surface of the fixed disk 10 away from the brake disk 20, and the fastening element 32 is used for fastening the spacer 31 and the brake disk 20. The spacer 31 reduces the gap between the fastening member 32 and the inner wall of the groove 11, thereby reducing the displacement of the fastening member 32 during braking and improving reliability.

The connecting assembly 30 further includes a spacer 33, the spacer 33 includes an arc-shaped piece 331 disposed around the inner wall of the groove 11 and a support piece 332 formed by bending and extending from the top of the arc-shaped piece 331, the support plate 312 of the spacer 31 is pressed on the support piece 332, and two opposite sides of the sleeve body 311 of the spacer 31 abut against the arc-shaped piece 331. Because the arc-shaped pieces 331 are attached to the inner wall of the groove 11, the spacer 33 is not easy to shift in the horizontal direction due to vibration, and thus the spacer 31 and the fastening member 32 are not easy to shift in the horizontal direction.

The connecting assembly 30 further includes a spring 34, the spring 34 is pressed against the supporting plate 312 of the spacer 31 by the fastening member 32 for providing an upward pre-tightening force to the fastening member 32, and left and right sides of the spring 34 extend beyond the supporting plate 312 and are bent downward to the supporting plate 332. When the shock absorber is shocked, the elastic sheet 34 can continuously provide upward pretightening force for the fastening piece 32, and loosening of the fastening piece 32 in the shock process is avoided.

The fastener 32 is a bolt including a head having a flat side and a threaded shank.

One side of the elastic sheet 34 is bent downward and extends a predetermined distance downward along the sleeve 311 to form a first card 341. The first locking piece 341 is used to prevent the elastic piece 34 and the spacer 31 from rotating relatively. The other side of the elastic sheet 34 is bent upwards, and extends upwards for a preset distance along the side plane of the head to form a second card 342. The second tab 342 is used to prevent relative rotation between the resilient tab 34 and the fastening member 32, thereby further preventing the fastening member 32 from loosening due to rotation.

The head is pressed on the elastic sheet 34, and the screw rod sequentially passes through the elastic sheet 34 and the spacer 31 and is in threaded connection with the connecting block 22. The screw rod is unthreaded on the corresponding areas of the elastic sheet 34 and the spacer 31.

The surface of the brake disc body 20 is provided with a plurality of pattern grooves to improve the friction force. The brake disc body 20 and the connecting block 22 are integrally formed, the thickness of the connecting block 22 is smaller than that of the brake disc body 20, and meanwhile, the maximum edge of the fixing disc body 10 does not exceed the inner annular surface 21 of the brake disc body 20, so that deformation shock absorption is better.

Referring to fig. 4, one side of the fixed disc 10 close to the brake disc 20 protrudes to form an annular step 12, the annular step 12 is opposite to the top surface of the connecting block 22, and the top surface of the connecting block 22 is supported on the annular step 12 during installation to assist in positioning the fixed disc 10 and the brake disc 20, so as to facilitate installation of the connecting assembly 30.

The utility model discloses a brake disc, fixed disk body 10 and brake disk body 20 are the components of a whole that can function independently setting, will fix disk body 10 and fold and locate on brake disk body 20 to make the axial lead of fixed disk body 10 and the axial lead coincidence of brake disk body 20, make every connecting block 22 align with the recess 11 that corresponds simultaneously. The spacer 31 is disposed in the recess 11, the support plate 312 of the spacer 31 is pressed against one surface of the fixed disc 10, and the spacer 31 and the brake disc 20 are fastened by the fastening member 32.

In the braking process, axial vibration occurs on the brake disc body 20 due to uneven stress on two sides of the brake disc body, the vibration is transmitted to the connecting block 22 and the groove 11 and is consumed by deformation of the connecting block 22 and small gap floating of the spacer 31 and the fastening piece 32, and the vibration of the fixed disc body 10 is reduced; the spacer 31 reduces the clearance between the fastener 32 and the inner wall of the groove 11, so that the displacement of the fastener 32 in the braking process is reduced, and the reliability is high; because the area of the groove 11 is smaller than that of the connecting block 22, after the connecting block 22 is aligned with the corresponding groove 11, the part of the connecting block 22 exceeding the groove 11 is directly abutted against the fixed disc body 10, when the brake is stressed, force transmission is realized by the friction force between the fixed disc body 10 and the connecting block 22 and the connecting assembly 30, and the reliability is high and the application range is wide.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A brake disc comprises a fixed disc body and a brake disc body which are arranged separately, the fixed disc body and the brake disc body are detachably connected through a connecting component, the brake disc is characterized in that,

the brake disc body comprises an inner ring surface, and a plurality of connecting blocks protruding towards the center of the inner ring surface are uniformly distributed on the inner ring surface;

the edge of the fixed disc body is provided with a plurality of grooves, the grooves correspond to the connecting blocks one by one, and the area of each groove is smaller than that of each connecting block;

the fixed disc body is stacked on the brake disc body, so that the axis of the fixed disc body is superposed with the axis of the brake disc body, and each connecting block is aligned with the corresponding groove;

coupling assembling includes spacer and fastener, the spacer is including locating the cover body in the recess to and the backup pad that outwards extends the formation from cover body top surface, the backup pad pressure is located keeping away from brake disk body one side of fixed disk body, the fastener is used for fastening connection spacer and brake disk body.

2. The brake disc of claim 1, wherein the coupling assembly further comprises a spacer, the spacer comprises an arc-shaped piece arranged around the inner wall of the groove and a support piece formed by bending and extending from the top of the arc-shaped piece, and the support plate of the spacer is pressed on the support piece.

3. The brake disc of claim 2, wherein the connecting assembly further comprises a spring plate, the spring plate is pressed against the support plate of the spacer by the fastening member for providing upward pre-tightening force to the fastening member, and left and right sides of the spring plate extend beyond the support plate and bend downward to the support plate.

4. The brake disc of claim 3, wherein one side of the resilient tab is bent downward and extends downward along the covering for a predetermined distance to form a first tab.

5. The brake disc of claim 3, wherein the fastener is a bolt comprising a head and a threaded shaft, the head having a flat side;

the other side of the elastic sheet is bent upwards, and a preset distance is extended upwards along the side plane of the head to form a second card.

6. The brake disc of claim 5, wherein the head is pressed on the spring plate, and the screw rod sequentially penetrates through the spring plate and the spacer sleeve and is in threaded connection with the connecting block.

7. The brake disc according to any one of claims 1 to 6, wherein the surface of the brake disc is provided with a plurality of grooves.

8. The brake disc of claim 7 wherein the largest edge of the fixed disc does not extend beyond the inner annular surface of the brake disc.

9. The brake disc of claim 8, wherein the brake disc body is integrally formed with a connecting block, the connecting block having a thickness less than a thickness of the brake disc body.

10. The brake disc of claim 7 wherein the side of the fixed disc adjacent the brake disc body is raised to form an annular step opposite the top surface of the attachment block to assist in positioning the fixed disc body with the brake disc body.