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The structure and working principle of YWZ4,YWZ4-A series electro-hydraulic drum brakes

Oct 07, 2024

The working principle is as follows: When the mechanism is powered off and stops working, the brake driving device-the pusher is also powered off (or delayed power-off), and the driving is stopped (thrust elimination), at which time the spring force of the brake spring passes through The side brake arm is transmitted to the brake shoe to generate a predetermined pressure on the brake cover and establish a prescribed braking torque to act as a brake; when the mechanism is energized, the brake pusher is also energized and rapidly driven. Sufficient thrust is generated to push the push rod, forcing the brake spring to further compress, and the brake arm is extended to both sides, so that the brake pad brake cover is disengaged from the brake wheel, and the brake cover pressure and braking torque are eliminated. Stop braking.

Various limit (interlock) switches can be added according to user needs. He is often required for modern lifting and efficient handling equipment. The function of the limit switch is to provide the driver's cab (control room) or PLC control with monitoring (fault display) or interlock protection signals for certain states of the brake.

The YWZ4 series can be equipped with our ED or YT1 series electric hydraulic pushers. (According to the user's needs, correctly understand the working conditions and detailed parameters of the ED and YT1 series pushers, refer to the product parameter table for selection); YWZ4-A series is equipped with the company's YT1 series pusher. There are two types of brake pads installed: riveted and plug-in.

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