CN203374705U

CN203374705U - Disc brake with pushing and pulling structure

Info

Publication number: CN203374705U
Application number: CN201320397542.8U
Authority: CN
Inventors: 武素荣; 葛宏; 孟祥亮; 邓传奇
Original assignee: Shanghai Automotive Brake Systems Co Ltd; Continental Brake Systems Shanghai Co Ltd
Current assignee: Shanghai Automotive Brake Systems Co Ltd; Continental Brake Systems Shanghai Co Ltd
Priority date: 2013-07-04
Filing date: 2013-07-04
Publication date: 2014-01-01
Anticipated expiration: 2023-07-04

Abstract

The utility model provides a disc brake with a pushing and pulling structure. The disc brake comprises a support and a friction sheet. The end portions of the two sides of the friction sheet are respectively provided with a first protruding part bending towards the support, the first protruding parts bear the thrust and/or tension of the support, and the support is provided with open grooves for containing the first protruding parts. By means of the disc brake, the torsion causing abrasion of the friction sheet can be reduced so that the friction sheet can be abraded evenly.

Description

The disk type braker of push-pull configuration

Technical field

The utility model relates to the break technology, relates in particular to a kind of disk type braker of push-pull configuration.

Background technique

Brake calipers is a kind of braking device commonly used.Brake calipers structure and working principle common in prior art are as follows: the support of brake calipers is bolted on knuckle, and the housing of brake calipers is radially fixing by the guide structure of brake calipers, and axially can be along guide finger and support generation relative sliding; Piston promotes the piston side friction plate under the effect of retardation pressure, makes the piston side friction plate be pressed against on brake disc, and the caliper shell of retardation pressure promotion simultaneously moves along guide finger, makes fist side friction plate also be pressed against on brake disc; So the brake disc both sides are clamped and are braked by piston side friction plate and fist side friction plate respectively, and brake disc and hub for vehicle wheel tighten together, so wheel also just stops operating.

Fig. 1 shows decomposition and the package assembly schematic diagram of a kind of brake calipers in prior art, mainly comprises: tight a bolt 1, buffer ferrule 2, guide finger 3, bleeder screw dust cap 4, bleeder screw 5, housing 6, support 7, piston 8, seal ring 9, dust-proof cover 10, inner attrition piece 11, outside friction disc 12, guide spring sheet 13.

Referring to figs. 2 and 3, Fig. 2 shows the linkage structure of support 7 and inner attrition piece 11, and Fig. 3 is the part expense enlarged view in zone 21 in Fig. 2.From Fig. 2 and Fig. 3, in brake calipers of the prior art or break, the end of inner attrition piece 11 and outside friction disc is normally straight, and the tangential force that friction plate is subject to is all thrust P forever.Adopt the break of this structure can cause friction disc wear inhomogeneous.

The model utility content

The technical problems to be solved in the utility model is to provide a kind of disk type braker of push-pull configuration, can reduce to cause the moment of friction plate eccentric wear, makes friction disc wear even.

For solving the problems of the technologies described above, the utility model provides a kind of disk type braker of push-pull configuration, comprises support and friction plate, wherein,

The both side ends of described friction plate has the first bump towards described support bending, and described the first bump bears thrust and/or the pulling force from described support;

Described support has the fluting of accommodating described the first bump.

According to an embodiment of the present utility model, the both side ends of described friction plate and the first bump form hook-shaped.

According to an embodiment of the present utility model, the both side ends of described friction plate also has the second bump that deviates from described support bending.

According to an embodiment of the present utility model, between the outside of the first bump of inboard and described friction plate second side of the outside of the first bump of the inboard of the first bump of described friction plate the first side, described friction plate the first side, the first bump of described friction plate the second side and the sidewall of described fluting, there is gap.

According to an embodiment of the present utility model, the inboard of the first bump of described friction plate the first side and the sidewall contact of described fluting, have gap between the outside of the inboard of the first bump of the outside of the first bump of described friction plate the first side, described friction plate the second side, the first bump of described friction plate the second side and the sidewall of described fluting.

According to an embodiment of the present utility model, the inboard of the first bump of described friction plate the first side and the sidewall contact of described fluting, there is gap between the outside of the first bump of described friction plate the first side and the sidewall of described fluting, there is gap between the inboard of the first bump of described friction plate the second side and the sidewall of described fluting, the outside of the first bump of described friction plate the second side and the sidewall contact of described fluting.

Compared with prior art, the utlity model has following advantage:

In the utility model embodiment's disk type braker, the friction plate both side ends has the first bump towards the support bending, this first bump is placed in the fluting of support, therefore friction plate can bear the pulling force from support, the force mode that is subject to of pulling force can reduce to cause the moment of friction plate eccentric wear, makes friction disc wear even.

The accompanying drawing explanation

Fig. 1 is decomposition and the package assembly schematic diagram of a kind of brake calipers in prior art;

Fig. 2 is the support of a kind of brake calipers in prior art and the linkage structure schematic diagram of friction plate;

Fig. 3 is the partial enlarged drawing in zone 21 in Fig. 2;

Fig. 4 is the package assembly schematic diagram of the utility model the first embodiment's disk type braker;

Fig. 5 is the decomposition texture schematic diagram of the utility model the first embodiment's disk type braker;

Fig. 6 is the local enlarged diagram of friction plate end in the utility model the first embodiment's disk type braker;

Fig. 7 is the force analysis schematic diagram of the utility model the first embodiment's disk type braker;

Fig. 8 is the partial enlarged drawing in zone 61 in Fig. 7;

Fig. 9 is the partial enlarged drawing in zone 61 in Fig. 7;

Figure 10 is the partial enlarged drawing in zone 62 in Fig. 7;

Figure 11 is the structural representation of the utility model the second embodiment's disk type braker;

Figure 12 is the partial enlarged drawing in zone 100 in Figure 11.

Embodiment

Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail, but should not limit protection domain of the present utility model with this.

With reference to figure 4, to Fig. 6, in the first embodiment, this disk type braker comprises support 42 and friction plate 41.Wherein, the both side ends of this friction plate 41 has the first bump 411 towards support 42 bendings, and this support 42 has the fluting 421 of accommodating this first bump 411, and the first bump 411 be placed in fluting 421 bears thrust and/or the pulling force from support 42.Furthermore, this thrust and pulling force are from the sidewall of the fluting 421 of support 42.

Generally speaking, being shaped as that the end of the first bump 411 and friction plate 41 forms is hook-shaped.Particularly, at angle, this angle can be acute angle, obtuse angle or right angle to the bend at end of the first bump 411 and friction plate 41, is preferably right angle in the present embodiment.

Fluting 421 width is slightly larger than the width of the first bump 411, in the situation that do not stress, between the dual-side of the

first bump

411 and 421 the sidewall of slotting, does not contact.Particularly, under the relaxed state do not stressed, between the sidewall of the outside of the inboard of the outside of first bump 411 in the inboard of first bump 411 in friction plate 41 left sides, friction plate 41 left sides, first bump 411 on friction plate 41 right sides and first bump 411 on friction plate 41 right sides and fluting 421, all there is gap.

Furthermore, 4 in Fig. 5 is the key element that affects the push-and-pull effect apart from a, b, c, d, wherein, distance between first bump 411 outsides that are friction plate 41 both side ends apart from a, distance between the first bump 411 inboards that distance b is friction plate 41 both side ends, distance A is the distance of slotting between 421 outer side walls in support 42 both sides, apart from B, is the distance of slotting between 421 madial walls in support 42 both sides.In order to meet the force request of thrust and pulling force, the tolerance in the time of should considering to make to meet manufacture apart from a, b, A, B.

With reference to figure 7, Fig. 8 and Fig. 9, when tangential force Fu hour, the sidewall contact of the inboard of the first bump 411 of friction plate right-hand end and fluting 421, the first bump 411 bearing tensions; There is gap g between the sidewall of the outside of the first bump 411 of friction plate right-hand end and fluting 421, do not stress; There is gap g between the sidewall of the outside of the first bump 411 of friction plate left end and inboard and fluting 421, do not stress.Generally, under this state, friction plate only reels power.

With reference to figure 7, Fig. 8 and Figure 10, when increasing gradually, tangential force Fu causes friction plate backboard and support 42 distortion, and stress changes, the sidewall contact of the inboard of the first bump 411 of friction plate right-hand end and fluting 421, the first bump 411 bearing tensions; There is gap g between the sidewall of the outside of the first bump 411 of friction plate right-hand end and fluting 421, do not stress; The sidewall contact of the outside of the first bump 411 of friction plate left end and fluting 421, bearing thrust, and there is gap g between the sidewall of the inboard of the first bump 411 of friction plate left end and fluting 421, do not stress.Generally, under this state, friction plate is bearing tension and thrust simultaneously.

In an instantiation, disk type braker comprises inboard (piston side in other words) friction plate and the outside (fist side in other words) friction plate, and wherein, inboard friction plate can adopt a pull-up structure, i.e. its tangential force of bearing at work pulling force always; And outside friction plate can adopt push-pull configuration, only be subject to pulling force when starting, along with the increase of tangential force, associated components deforms, and is converted into bearing tension and thrust simultaneously.The force mode that is subject to of pulling force can reduce to cause the moment of friction plate eccentric wear, makes friction disc wear even; In addition, small area of contact and and support between relative movement can prevent the corrosion between part.

It should be noted that, what more than provide is only preferred embodiment, adopts push-pull configuration or a pull-up structure, for inboard friction plate or outside friction plate, can be adjusted according to the needs of practical application.

With reference to Figure 11 and Figure 12, in a second embodiment, the both side ends of friction plate has different shapes, except having towards the first bump 101 of support bending, end also has between the end of the second bump 102, the first bumps 101, the second bump 102 and the friction plate that deviate from this support bending and all is hook-shaped.

Similarly, in a second embodiment, when being subject to tangential force, the first bump 101 of friction plate is bearing tension only also, or bearing tension or thrust simultaneously.

Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not within breaking away from spirit and scope of the present utility model; can make possible change and modification, the scope that therefore protection domain of the present utility model should be defined with the utility model claim is as the criterion.

Claims

1. the disk type braker of a push-pull configuration, comprise support and friction plate, it is characterized in that,

Described support has the fluting of accommodating described the first bump.

2. disk type braker according to claim 1, is characterized in that, the both side ends of described friction plate and the first bump form hook-shaped.

3. disk type braker according to claim 1, is characterized in that, the both side ends of described friction plate also has the second bump that deviates from described support bending.

4. disk type braker according to claim 1, it is characterized in that thering is gap between the outside of the first bump of inboard and described friction plate second side of the outside of the first bump of the inboard of the first bump of described friction plate the first side, described friction plate the first side, the first bump of described friction plate the second side and the sidewall of described fluting.

5. disk type braker according to claim 1, it is characterized in that, the inboard of the first bump of described friction plate the first side and the sidewall contact of described fluting, have gap between the outside of the inboard of the first bump of the outside of the first bump of described friction plate the first side, described friction plate the second side, the first bump of described friction plate the second side and the sidewall of described fluting.

6. disk type braker according to claim 1, it is characterized in that, the inboard of the first bump of described friction plate the first side and the sidewall contact of described fluting, there is gap between the outside of the first bump of described friction plate the first side and the sidewall of described fluting, there is gap between the inboard of the first bump of described friction plate the second side and the sidewall of described fluting, the outside of the first bump of described friction plate the second side and the sidewall contact of described fluting.