Hydraulic floating power balance brake

Abstract

The invention discloses a hydraulic floating power balance brake. The hydraulic floating power balance brake comprises a brake drum, a brake bottom plate, a hydraulic sub-pump and a brake shoe, wherein the brake shoe and the hydraulic sub-pump are arranged in the brake drum, and the brake shoe is arranged along the inner side of the brake drum; the hydraulic sub-pump and the brake shoe are arranged on the brake bottom plate, and the brake shoe is provided with a friction plate; the hydraulic floating power balance brake further comprises a power balance mechanism, and the power balance mechanism and the hydraulic sub-pump are symmetrically arranged on the brake bottom plate; and one end of the brake shoe is connected with the hydraulic sub-pump, and the other end of the brake shoe is connected with the power balance mechanism. Through design of the power balance mechanism and combination of the power balance mechanism with hydraulic power transmission advantages, hydraulic power balance braking is achieved, the braking performance of the vehicle brake is greatly improved, the application range of the hydraulic brake is extended, and the hydraulic floating power balance brake is simple in structure, economical, practical and high in application and popularization value.

Description

technical field [0001] The invention relates to the technical field of automobile braking, in particular to a hydraulic floating booster balance brake used on small and medium-sized vehicles. Background technique [0002] At present, in the field of brake technology, automotive brakes can be divided into two categories: industrial brakes and automotive brakes, and automotive brakes are further divided into service brakes and parking brakes. The resistance torque that must be applied in the brake to stop or decelerate the mechanical moving parts is called the braking torque. Braking torque is the basis for designing and selecting brakes, and its size is determined by the type of machinery and work requirements. The performance of the brake parts used on the brake directly affects the braking process, and the main factors affecting its performance are the working temperature and the temperature rise rate. [0003] The earliest designed drum brake system in automobile braking...

AI Technical Summary

Problems solved by technology

When the brake drum rotates in the forward direction and reverse direction, there is a brake with a leading shoe and a slave shoe, which is called a leading shoe brake. The leading shoe brake is divided into two types: balanced and unbalanced. When braking The actuating force exerted by the piston is equal, so an additional radial force is generated on the brake drum during the braking process. The brake where the normal force from the two hooves on the brake drum cannot balance each other is called unbalanced. For the brake, there is no direct connection between the leading shoe and the following shoe, and power cannot be transmitted, so additional force cannot be generated; unbalanced brakes have poor braking efficiency and heat dissipation, the braking force of the brake is poor in stability, and the braking force varies greatly , is not easy to control; and due to poor heat dissipation, a large amount of heat will accumulate during the braking process, and the brake pads and drums are prone to extremely complex deformations under the influence of high temperatures, which are prone to brake failure and chattering, causing The braking efficiency decreases, so the braking performance of the unbalanced brake is poor, and it is prone to flicking and deviation during the braking process, which may even lead to safety accidents in severe cases

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