A kind of on-deformable drum brake lining of city of adstante febreTechnical field
The invention belongs to technical field of automobile parts, and in particular to a kind of on-deformable drum brake lining of adstante febrePiece.
Background technology
Drum brake is also block brake, is to compress to realize brake on the brake wheel by brake block.Drum-type systemDynamic is the braking system of Earlier designs, and the design of brake rim has just used on carriage for 1902, left until nineteen twentyRight just to start in auto industry extensive use, the mainstream of drum brake is internal expanding type, its brake block is located on the inside of braked wheel,Brake block is flared out when brake, and the inside of friction catch wheel achievees the purpose that brake, in nearly 30 years, drum-type systemDynamic device progressively exits on car field makes way for disk brake, but since cost is than relatively low, it is still economical at someIt is used in class car, is mainly used for the smaller trailing wheel of brake load and parking braking.
Original drum brake lining of city, at work, because fever causes drum brake lining of city to deform, and drum-type systemIt is unstable during dynamic device liner installation, it makes troubles safely to user.
The content of the invention
It is an object of the invention to provide a kind of on-deformable drum brake lining of city of adstante febre, to solve above-mentioned backgroundThe original drum brake lining of city proposed in technology, at work, because fever causes drum brake lining of city to deform, and drumFormula brake facing is unstable when installing, the problem of making troubles safely to user.
To achieve the above object, the present invention provides following technical solution：A kind of on-deformable drum brake of adstante febreLiner, including liner and back-plate, the upper surface corner of the liner is provided with mounting hole, in the upper surface of the linerBetween be provided with fixing groove at position, the liner is internally provided with keriotheca, and the front surface of the liner is provided with heat emission hole,The back-plate is mounted on the bottom of liner, and the upper surface middle position of the back-plate is provided with brake-shoe, describedThe upper surface middle position of brake-shoe is provided with installing plate, and the upper surface middle position of the installing plate is provided with axle sleevePlate, the upper surface middle position of the shaft sleeve plate are provided with shaft bearing plate, return spring, institute are provided with above the shaft bearing plateThe one end for stating return spring is provided with fixing nut, and bearing, the lower section of the shaft bearing plate are provided with above the return springWheel cylinder is provided with, patch is provided on the right side of the shaft bearing plate.
Preferably, there are two the return spring is set, there are four the fixing nut settings, described two return springsThe both sides up and down of shaft bearing plate are distributed in, are fixedly connected between described two return springs and brake-shoe by four fixing nuts.
Preferably, there are two the liner is set, described two liners are distributed in the left and right sides of back-plate inner surface,It is fixedly connected between the liner and back-plate by fixing groove.
Preferably, there are four the mounting hole is set, four mounting holes be distributed in liner upper surface four turnAt angle.
Preferably, there are two the patch is set, two patches are passed through between the shaft sleeve plate and installing plate and brake-shoeIt is fixedly connected.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is scientific and reasonable for structure, safe and convenient to use,Multiple heat emission holes are provided on liner, heat emission hole is triangular structure, and at work, heat emission hole radiates for liner, in linerInside has stability and good thermal diffusivity using honeycomb, honeycomb, further such that liner is more stable and scatteredThermal effect is more preferable, improves liner at work, because drum brake lining of city deforms caused by fever the problem of, in liner upper surfaceMiddle position is provided with fixing groove, and fixing groove blocks back-plate so that liner is fixed more to be stablized, and is brought to userIt is convenient.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention；
Fig. 2 is the side structure schematic diagram of the present invention；
Fig. 3 is the mounting structure schematic diagram of the present invention；
Fig. 4 is the cross-sectional view of the present invention；
In figure：1- liners, 2- keriothecas, 3- heat emission holes, 4- mounting holes, 5- fixing grooves, 6- return springs, 7- bearings, 8- are fixedNut, 9- installing plates, 10- patches, 11- shaft sleeve plates, 12- wheel cylinders, 13- brake-shoes, 14- shaft bearing plates, 15- back-plates.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, completeSite preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative workEmbodiment belongs to the scope of protection of the invention.
- 4 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of on-deformable drum brake lining of adstante febrePiece, including liner 1 and back-plate 15, the upper surface corner of liner 1 is provided with mounting hole 4, the upper surface interposition of liner 1The place of putting is provided with fixing groove 5, and liner 1 is internally provided with keriotheca 2, and the front surface of liner 1 is provided with heat emission hole 3, brakes bottomPlate 15 is mounted on the bottom of liner 1, and the upper surface middle position of back-plate 15 is provided with brake-shoe 13, brake-shoe 13 it is upperSurface middle position is provided with installing plate 9, and the upper surface middle position of installing plate 9 is provided with shaft sleeve plate 11, shaft sleeve plate 11Upper surface middle position be provided with shaft bearing plate 14, the top of shaft bearing plate 14 is provided with return spring 6, the one of return spring 6End is provided with fixing nut 8, and the top of return spring 6 is provided with bearing 7, and the lower section of shaft bearing plate 14 is provided with wheel cylinder 12,The right side of shaft bearing plate 14 is provided with patch 10.
It is fixed in order to enable return spring 6 is stablized, in the present embodiment, it is preferred that fixed there are two return spring 6 is setThere are four nut 8 is set, two return springs 6 are distributed in the both sides up and down of shaft bearing plate 14, two return springs 6 and brake-shoe 13Between be fixedly connected by four fixing nuts 8.
More stablize in order to enable liner 1 is fixed, in the present embodiment, it is preferred that there are two liner 1 is set, two liningsPiece 1 is distributed in the left and right sides of 15 inner surface of back-plate, is fixedly connected between liner 1 and back-plate 15 by fixing groove 5.
In order to enable more stablize when liner 1 and external connection, in the present embodiment, it is preferred that mounting hole 4 is provided with fourA, four mounting holes 4 are distributed in four corners of 1 upper surface of liner.
In order to avoid shaft sleeve plate 11 and installing plate 9 drop at work, in the present embodiment, it is preferred that patch 10 is provided withIt two, is fixedly connected between shaft sleeve plate 11 and installing plate 9 and brake-shoe 13 by two patches 10.
The operation principle and process for using of the present invention：After the present invention installs, liner 1 is placed into back-plate 15On, fixing groove 5 is provided on liner 1 so that liner 1 and back-plate 15 are fixed more stable, and external connection bar is putPut in shaft bearing plate 14, when brake at work, return spring 6 resets the back-plate 15 of distortion, the two of return spring 6The problem of end is provided with fixing nut 8, avoids return spring 6 at work, damage excessive because of torque after completing work, passes throughFixing groove 5 dismantles liner 1, detects the degree of wear of liner 1, and replaces in time, for use next time.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be withUnderstanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replaceAnd modification, the scope of the present invention is defined by the appended.