MAN rear enhanced precision double-open casting brake

Abstract

A MAN rear reinforced precision double-open casting brake includes brake base plates, friction plates, and a left brake shoe and a right brake shoe which are symmetrically disposed. The friction plates are disposed on outer surfaces of the left brake shoe and the right brake shoe. The brake base plates are disposed on the same straight line and pass through front and back sides of the left brake shoe and the right brake shoe. The friction plates are disposed on the outer surfaces of the left brake shoe and the right brake shoe. Two ends of a holding spring are respectively hooked in spring holes corresponding to the left and right brake shoes. Rotating shaft ends of the brake base plates are provided with stepped double cylindrical shoe shafts. A return spring pin mechanism is disposed between reinforcing ribs of the left brake shoe and the right brake shoe. The MAN rear-reinforced precision double-open casting brake has the advantages that according to the left brake shoe and the right brake shoe, through cooperation of the U-shaped steps, the return spring pin and arc grooves, return spring shifting is prevented, and strength of the brake shoes and rigidity of the whole brake areincreased; the brake effect of the brake shoes is improved, the service lifetime of the brake shoes is prolonged, and the brake shoes are easy to disassemble and replace.

Description

technical field [0001] The invention relates to the technical field of automobile brakes, in particular to a rear-reinforced precision double-opening casting brake. Background technique [0002] As an important part of a car, brakes are related to vehicle performance and driving safety. Cars are generally divided into two types: disc brakes and drum brakes. For drum brakes, car braking mainly relies on the driver stepping on the brake pedal to transmit the pressure of the brake fluid to the cylinder, spread the brake shoes, and the brake shoes will rub against the brake drum to generate braking force. . When the driver releases the brake pedal, the pressure in the brake cylinder disappears and the brake shoe returns to its position. [0003] A utility model patent with the Chinese Patent Publication No. CN203009644U discloses a brake comprising a brake base plate, a camshaft passing through the brake base plate, and two symmetrically arranged camshafts with the same struc...

AI Technical Summary

Problems solved by technology

[0007] 3. The weight of the brake is large, resulting in high fuel consumption of the car

[0008] 4. The rivet holes of the hoof plate are set on both sides of the hoof rib plate, and the outer surface of the hoof plate and the friction plate are riveted by countersunk semi-hollow rivets. The riveting strength is poor, which reduces the braking effect of the brake shoe

[0009] 5. The overall rigidity of the brake shoe is poor, and long-term braking will cause damage to the rib plate and shoe panel, resulting in structural deformation and affecting the braking effect

[0010] 6. The brake shoe is heavy and has poor aesthetics. It is prone to overadjustment during use, which will cause the brake shoe to lock up, cause the friction plate to overheat, and finally cause safety accidents such as fire.

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