What is the principle of the air brake master cylinder?
1 Answers
Principle of the air brake master cylinder is introduced as follows: When the brake pedal is pressed: The pull rod drives the brake valve arm downward, and the upper end of the brake pin is lowered with the pin shaft as the fulcrum, so that the air inlets of the upper and lower chambers of the brake valve are connected to the air outlets of the chambers respectively. This allows the air in the front and rear chambers of the storage cylinder to enter the front and rear brake chambers through the upper and lower chambers of the brake valve, thereby pushing the brake into operation. When the brake pedal is released: The brake valve connects the brake chamber to the atmosphere to release the brake. The maximum stroke of the parking brake chamber push rod is 10% larger than that of the drive brake push rod. Therefore, when the drive brake push rod has already moved to the maximum stroke, but the brake clearance is too large to achieve full braking, the parking brake chamber can be vented, and the drive brake push rod can be further pushed out with the help of the energy storage spring to achieve full braking.