CN208442178U - The brake assembly of heavy vehicle - Google Patents

Abstract

The brake assembly of heavy vehicle, including brake backing plate, two brake-shoes being oppositely arranged, one end of two brake-shoe is rotatably connected on brake backing plate, the other end is respectively formed a free end, brake-shoe includes web, bent plate positioned at web outer peripheral edge, and it is fixed on the brake block of bent plate outer surface, the inner surface of bent plate is provided with multiple first convex ribs and the second convex ribs, multiple first convex ribs extend along the length direction of bent plate, multiple second convex ribs extend along the width direction of bent plate, and first convex ribs and the intersection of the second convex ribs so that multiple first convex ribs and the second convex ribs is constituted reticular structure.The utility model improves assembly precision, during brake operation, since the fit-up gap between bent plate and brake block and web is small, the time of the brake response of shortening, improve the performance of brake simultaneously, first convex ribs and the second convex ribs can increase the integral strength of bent plate, effectively reduce brake bent plate a possibility that deformation occurs in use.

Description

The brake assembly of heavy vehicle

Technical field

The utility model relates to vehicle brake technology fields, and in particular to a kind of brake assembly of heavy vehicle.

Background technique

Currently, brake, which is generally divided into two kinds, applies more extensive type, one is disk brake, another kind is bulging Formula brake, drum brake are generally used for the heavy vehicles such as truck, engineering truck.Existing drum brake generally includes to make Dynamic drum, brake backing plate, two opposed brake-shoes and camshaft, wherein one end of two brake-shoes is rotatably connected on system On dynamic device bottom plate, the other end is then respectively formed a free end, and the cam on camshaft is located between the free end of two brake-shoes, when When needing to brake, cam axle, two brake-shoes of pushing tow are turned out two brake-shoes open-shaped, brake-shoe outer surface Friction plate contact friction with brake drum inner surface, realize the braking of vehicle.Brake-shoe generally comprises web, is fixed on outside web Periphery and arc-shaped bent plate and the brake block for being fixed on bent plate outer surface, existing bent plate are using sheet metal mostly Punching shaping is bent, in forming process, processes bent plate according to the radian of design requirement, but due to stress problem, assembling When, the radian of bent plate is difficult accurately preferably to cooperate with web and brake block, influence installation accuracy, meanwhile, bent plate it is strong It spends poor, causes the stability for the brake block for being fixed on its outer surface also poor.

Utility model content

In view of the deficiencies of the prior art, the purpose of this utility model be intended to provide a kind of heavy vehicle brake it is total At can improve the intensity of bent plate, overcome the problems, such as the problem of the difference of assembly precision caused by bent plate stress.

To achieve the above objectives, the present invention adopts the following technical solutions:

The brake assembly of heavy vehicle, including brake backing plate, two brake-shoes being oppositely arranged, two brake-shoe One end is rotatably connected on brake backing plate, the other end is respectively formed a free end, and brake-shoe includes web, is located at outside web The bent plate of periphery and the brake block for being fixed on bent plate outer surface, the inner surface of bent plate are provided with multiple first convex ribs and second Convex ribs, multiple first convex ribs extend along the length direction of bent plate, and multiple second convex ribs extend along the width direction of bent plate, and the One convex ribs and the intersection of the second convex ribs make multiple first convex ribs and the second convex ribs constitute reticular structure.

The outer peripheral edge of web is provided with the recess for the insertion of the second convex ribs.

The section semicircular in shape of first convex ribs and the second convex ribs.

Brake block is fixedly connected by multiple rivets with bent plate.

There are two pivot pins, one end of the web of two brake-shoes is articulated on two pivot pins respectively for setting on brake backing plate, and Web is simultaneously rotatably assorted with pivot pin, and a tension spring is mounted between the web of two brake-shoes.

The utility model has the beneficial effects that:

Compared with the prior art, the utility model improves assembly precision, during brake operation, due to bent plate with Fit-up gap between brake block and web is small, the time of the brake response of shortening, improves the performance of brake simultaneously, and One convex ribs and the second convex ribs can increase the integral strength of bent plate, and effectively reducing brake, bent plate occurs in use A possibility that deformation.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Specific embodiment

In the following, being further described in conjunction with the drawings and specific embodiments to the utility model:

As shown in Figure 1, a kind of brake assembly of heavy vehicle for the utility model comprising brake backing plate 10, Two brake-shoes, two brake-shoes are oppositely arranged and are located at the two sides of brake backing plate 10；One end of two brake-shoes is equal Be rotatably coupled on brake backing plate 10, the other end is respectively formed a free end, particularly, two brake-shoes include abdomen Plate 20, bent plate 21 and brake block 22, wherein bent plate 21 is arc-shaped and is weldingly fixed on the outer peripheral edge of web 22, and brake block 22 is then It is fixed on the outer surface of bent plate 21, two pivot pins 30 parallel to each other, the web of two brake-shoes are set on brake backing plate 10 22 upper end is articulated in respectively on two pivot pins 30, and web 20 and pivot pin 30 rotatably cooperate；In the utility model, curved Multiple first convex ribs 211 and the second convex ribs 212 are provided on plate 21, the first convex ribs 211 and the second convex ribs 212 are to be located at bent plate 21 inner surface can be through the stamping process, by the outer surface punching press bent plate 21 of bent plate 21, in the inner surface shape of bent plate 21 At, multiple first convex ribs 211 are the length direction extensions along bent plate 21, and multiple second convex ribs 212 are then along bent plate 21 Width direction extends, and the first convex ribs 211 and the second convex ribs 212 intersect, i.e., multiple first convex ribs 211 and the second convex ribs 212 bent plate 21 inner surface form a reticular structure.Brake block 22, which can be, is fixed on bent plate 21 by multiple rivets 23 On.

First convex ribs 211 and the second convex ribs 212 are set on bent plate 21 in the utility model, bent plate 211 can be enhanced in length The bending resistance in direction and width direction is spent, and after forming according to design requirement, the first convex ribs 211 and the second convex ribs 212 can eliminate influence of the stress to bent plate 21, spring back bent plate 21 will not, ensure that the assembly progress of bent plate 21, make The radian of bent plate 21 can adapt to the radian of 22 inner surface of radian and brake block of 20 outer peripheral edge of web, improve assembly essence Degree, during brake operation, since the fit-up gap between bent plate 21 and brake block and web is small, the braking of shortening is anti- The time answered improves the performance of brake simultaneously, and the first convex ribs 211 and the second convex ribs 212 can increase the entirety of bent plate 21 Intensity effectively reduces brake bent plate a possibility that deformation occurs in use.

In order to be positioned while being reduced fit clearance in assembly, the outer peripheral edge of above-mentioned web 20 is also set up There are multiple recess 201, multiple second convex ribs 212 on bent plate 21 arrange in for 201 embedded in multiple, in this way, increasing curved The contact area of plate 21 and web 20 then increases the bonding area of the two.First convex ribs 211 and the second convex ribs 212 Cross sectional shape preferably can be semicircle, it is of course also possible to be other shapes, such as it is taper, rectangular.

In the utility model, a tension spring 40 is also set up between two above-mentioned brake-shoes, the tension spring 40 is for preventing web 21 are detached from pivot pin 30, specifically, tension spring 40 is arranged between two brake-shoe webs 21, i.e. the both ends of tension spring 40 mount two respectively The web 21 of brake-shoe.

Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality Example is applied the utility model is described in detail, those skilled in the art should understand that, it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features, and these It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution It encloses.

Claims (5)

1. the brake assembly of heavy vehicle, including brake backing plate, two brake-shoes being oppositely arranged, the one of two brake-shoe End be rotatably connected on brake backing plate, the other end is respectively formed a free end, which is characterized in that brake-shoe include web, Positioned at web outer peripheral edge bent plate and be fixed on the brake block of bent plate outer surface, the inner surface of bent plate is provided with multiple first Convex ribs and the second convex ribs, multiple first convex ribs extend along the length direction of bent plate, and multiple second convex ribs are along the width side of bent plate To extension, and the first convex ribs and the intersection of the second convex ribs make multiple first convex ribs and the second convex ribs constitute reticular structure.

2. the brake assembly of heavy vehicle as described in claim 1, which is characterized in that the outer peripheral edge of web is provided with for The recess of two convex ribs insertion.

3. the brake assembly of heavy vehicle as described in claim 1, which is characterized in that section of the first convex ribs and the second convex ribs Face semicircular in shape.

4. the brake assembly of heavy vehicle as described in claim 1, which is characterized in that brake block by multiple rivets with it is curved Plate is fixedly connected.

5. the brake assembly of heavy vehicle as described in claim 1, which is characterized in that on brake backing plate there are two settings Pivot pin, one end of the web of two brake-shoes are articulated in respectively on two pivot pins, and web and are rotatably assorted with pivot pin, two brake-shoes A tension spring is mounted between web.