A silicon carbide brake pad

Abstract

The invention provides a silicon carbide brake pad. The silicon carbide brake pad comprises brake pad bodies, connecting plates and a hydraulic cylinder. Each brake pad body is of a four-layer structure which includes a friction layer, a heat insulation base pad layer, a buffering connecting device layer and a bottom plate layer in sequence. The upper surface of each friction layer is provided with a concave-convex structure matched with protrusions on a braking disc. The braking pad bodies are welded to the connecting plates. The connecting plates can connect the braking pad bodies on the same side of the braking disc to form a braking pad body set. The braking pad body sets on the two sides of the braking disc are symmetrically arranged. The connecting plates on two sides of the brakingdisc are controlled by an oil circuit system of the same hydraulic cylinder. The manufactured silicon carbide brake pad has the advantages of being resistant to friction at high temperature, high in strength, not prone to damage, daily resistant to corrosion, excellent in short-distance braking performance and the like, and is low in manufacturing cost and capable of achieving volume production easily.

Description

technical field [0001] The invention belongs to the field of brakes, in particular to a brake pad made of silicon carbide material. Background technique [0002] Brake, commonly known as "brake". The action of stopping or reducing the speed of running vehicles and other means of transport or machinery. The general principle of braking is to fix a wheel or disc on the high-speed shaft of the machine, install a corresponding brake shoe, belt or disc on the machine base, and make it generate braking torque under the action of external force. An electric bicycle uses a battery as an auxiliary energy source, has two wheels, and is a special bicycle that can realize manpower riding, electric or electric assist function. Although it has the appearance characteristics of an ordinary bicycle. But the main thing is that it is a mechatronic personal transportation tool with operating components such as motors, controllers, batteries, handles, brake handles, and display instrument sys...

AI Technical Summary

Problems solved by technology

[0003] The application with the application number CN201420112280.0 discloses a device that can shorten the braking distance of an electric bicycle, which can reverse the motor of the electric bicycle during braking through the action of the circuit to achieve short-distance braking during emergency braking. This new type of brake often needs to use the motor as the power source when it is used frequently. Reversing will generate unstable current and cause damage to the motor, causing the motor of the electric vehicle to be easily damaged.

[0004] The application document with the application number CN201220694787.2 discloses a double-sided disc brake, which solves the shortcomings of the previous one-way clamping mechanical disc brakes, such as unstable force on one side and easy deformation, by double-sided clamping brakes. Stronger braking force can realize emergency short-distance braking. It has a direct double-sided clamping method. It is easy to install and clamp disc brakes on both sides at the same time. It is relatively light and thin; but due to the frequent braking of electric vehicles, this new type Only traditional direct friction braking is used between the friction plate and the disc. Long-term friction between the friction plate and the disc will cause damage to the friction plate, and in severe cases, it will also cause brake failure.

[0005] The current brakes on the market are relatively fixed in form, and the structure and materials of the brakes cannot meet the needs of frequent braking in daily life and short-distance emergency stops during emergency braking. Therefore, improvements in the above aspects are urgently needed

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