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目前,国产装载机制动系统大多采用气推油、钳盘式制动装置。发动机带动空气压缩机产生的高压气体,经油水分离器、气压调节器后进入贮气筒。当踩下制动踏板时,高压气体由贮气筒进入气制动阀,然后进入空气加力泵组,经加力缸产生较大的压力后,推动加力缸另一端的制动液再经油管进入各个车轮的盘式制动器,推动活塞夹紧制动盘,从而使车辆实施制动。抬起制动踏板时,气制动阀内的活塞切断高压气体通道,同时使阀内的气体与大气相通,加力泵组在弹簧力作用下回位,使制动管路内的制动液压力下降,从而解除制动。
At present, most domestic loader brake system using gas push oil, caliper disc brake device. The engine drives the high-pressure gas produced by the air compressor to enter the air reservoir through the oil-water separator and the air pressure regulator. When depressing the brake pedal, the high-pressure gas enters the air brake valve from the air reservoir and then enters the air booster pump. After a large pressure is generated in the booster cylinder, the brake fluid at the other end of the booster cylinder is pushed The tubing enters the disc brakes of each wheel and pushes the piston to clamp the brake disc, thereby braking the vehicle. When the brake pedal is lifted, the piston in the gas brake valve cuts off the high-pressure gas passage, and at the same time, the gas in the valve communicates with the atmosphere. The afterburner pump group is returned under the spring force to brake the brake pipe Hydraulic pressure drops, thus releasing the brake.