a brake cylinder

Abstract

The invention relates to a brake cylinder comprising: a cylinder body, a cylinder head, a power assembly, a front end assembly and a connecting pipe; the cylinder body includes an air intake chamber, a transition chamber, a breathing chamber, an air inlet, a breathing connection port, and an exhaust port; The power assembly divides the cylinder body into a brake chamber and a balance chamber; the cylinder head is closed on the cylinder body; the cylinder head has a breathing port; the bottom end of the power assembly is accommodated in the cylinder body, and the top end extends out of the cylinder head; the front end The component is sleeved on the top of the power component; one end of the connecting pipe is connected to the breathing connection port, and the other end is connected to the breathing port; when the brake cylinder brakes, the air intake chamber will input the brake line through the air intake port. The compressed gas is sent to the brake chamber through the transition chamber, and the expansion of the brake chamber makes the gas in the balance chamber compressed, discharged into the breathing chamber through the connecting pipe, and discharged into the atmosphere through the exhaust port; when the brake cylinder is released, the brake chamber and The balance chamber is reset, and the residual compressed gas in the transition chamber flows into the balance chamber through the breathing chamber and the connecting pipe.

Description

technical field [0001] The invention relates to the technical field of vehicle brake devices, in particular to a brake cylinder. Background technique [0002] Rail transit vehicles are generally equipped with an air brake system as the most basic guarantee for speed regulation and parking. As the end actuator of the air brake system, the brake cylinder can convert the pressure of compressed air into mechanical thrust. After the mechanical thrust is amplified by the brake caliper, the kinetic energy is converted into heat energy through the interaction between the brake pad and the brake disc, thereby realizing the braking of the rolling stock. [0003] The brake cylinder is generally divided into two parts: the brake chamber and the balance chamber. During the braking and release process of the brake cylinder, the balance chamber mainly exchanges with the outside air through the respirator, so as to realize the balance with the atmospheric pressure. When braking, compress...

AI Technical Summary

Problems solved by technology

With the accumulation of ice, the seal between the brake chamber and the balance chamber will fail, causing the high-pressure gas in the brake chamber to enter the balance chamber, that is, the brake cylinder cannot maintain pressure, and the braking function will weaken or even fail, affecting driving safety.

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