Brake pump

Abstract

The invention discloses a brake pump. The brake pump is provided with a brake housing, an air chamber housing and a liquid storage tank, wherein a brake cavity is formed in the brake housing, a brakepiston is installed in the brake cavity, an air chamber cavity is formed in the air chamber housing, a liquid outlet is formed in the left end of the brake housing, the brake housing and the air chamber housing are fixed together, a valve is arranged between the brake housing and the liquid storage tank, the brake piston is a stepped shaft, a left guiding shaft is arranged at the left end of the stepped shaft, a right guiding shaft is arranged at the right end of the stepped shaft, a middle shaft is arranged between the left guiding shaft and the right guiding shaft, the left guiding shaft andthe right guiding shaft are of the same diameter larger than the diameter of a middle shaft, the valve comprises a communication part, a liquid inlet boss is arranged on the brake housing, a liquid outlet boss is arranged on the liquid storage tank, the liquid inlet boss and the liquid outlet boss are fixed together through the communication part, a push rod is installed on a through hole of thecommunication part, a second spring is arranged on the push rod, and the bottom of the push rod penetrates into the brake cavity, and locates above the middle shaft. The brake pump is safe to use andhigh in reliability

Description

technical field [0001] The invention relates to a brake pump for a vehicle, in particular to a brake pump for a loader. Background technique [0002] The existing brake pump includes a brake housing, an air chamber housing, a liquid storage tank, and a push rod. The air chamber is equipped with a movable air chamber piston, and the air chamber piston is equipped with a return spring. The brake housing is provided with a liquid outlet. The liquid outlet and the liquid storage tank are connected with the brake chamber. The shell and the air chamber shell are fixed together. One end of the push rod is connected with the brake piston, and the other end of the push rod is connected with the air chamber piston. The air chamber shell is stamped with steel plate. The air inlet, breathing port and air inlet are respectively located on both sides of the air chamber piston. When the vehicle needs to brake, through the control, the air inlet enters the high-pressure gas, the high-pres...

AI Technical Summary

Problems solved by technology

[0003] In addition, the parking brake of the existing loader adopts a central disc brake. The brake disc is fixed on the transmission shaft and operated mechanically. The brake device can only be used after the loader has stopped. , it is easy to cause damage to the transmission shaft and axle; if the loader is too heavy or parked on a slope, it is easy to cause parking failure and accidents

In addition, once the handbrake mechanism or transmission shaft fails, the brakes will fail; when driving, if any components such as air pumps, pipelines, air storage tanks, brake valves, etc. fail, the brakes will fail, which is prone to accidents and poor safety.

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