Construction machinery brake pedal and operating method thereof

Abstract

The invention discloses an engineering machinery braking pedal which comprises a foot pedal (2). The foot pedal (2) is connected with a rotation rod (4) in a hinged mode. The rotation rod (4) is connected with a rotation plate (7) in a hinged mode. A pedal switch (5) is arranged on the foot pedal (2). The pedal switch (5) is connected with an electromagnetic valve on a power system oil way through a circuit. The invention further discloses an operating method of the braking pedal. According to the technical scheme, power cutting-off is added before a braking process, energy supplied to an engine is reduced by cutting-off the oil way, and therefore traction force of a whole vehicle is reduced. Then, braking is carried out through an air brake valve, therefore, the air brake valve works with low loads, and reliability and safety of braking are improved.

Description

technical field [0001] The invention belongs to the technical field of construction machinery control, and relates to a braking system of construction machinery. More specifically, the invention relates to a brake pedal of construction machinery. In addition, the present invention also relates to an operation method of the brake pedal. Background technique [0002] In the prior art, engineering machinery is braked through a brake pedal and an air brake valve. [0003] If the gas circuit leaks or the valve body fails, it will affect the braking performance of the whole vehicle, and at the same time, the braking of the whole vehicle only depends on the control of the air brake valve, resulting in a reduction in the service life of the air brake valve. [0004] At present, the market competition of construction machinery is fierce. Domestic construction machinery enterprises are exploring technical improvements to address the defects of the existing braking system, but until n...

AI Technical Summary

Problems solved by technology

[0003] If the air circuit leaks or the valve body fails, it will affect the braking performance of the whole vehicle. At the same time, the braking of the whole vehicle depends solely on the control of the air brake valve, resulting in a reduction in the service life of the air brake valve.

[0004] At present, the market competition of construction machinery is fierce. Domestic construction machinery enterprises are exploring technical improvements to address the defects of the existing braking system, but until now there is still no good technical solution.

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