The working principle of the mobile hydraulic lift The working principle of the four-wheel mobile lift: 1) The hydraulic oil is formed by the vane pump to a certain pressure, after the oil filter, the flameproof electromagnetic directional valve, the throttle valve, the hydraulic check valve The balance valve enters the lower end of the hydraulic cylinder to move the piston of the hydraulic cylinder up and lift the heavy object. The upper cylinder of the hydraulic cylinder returns to the fuel tank through the explosion-proof electromagnetic directional valve and its rated pressure is adjusted through the overflow valve and passes through the pressure gauge. Observe the pressure gauge reading. 2) The piston of the hydraulic cylinder moves downwards (falling weight). The hydraulic oil enters the upper end of the hydraulic cylinder through the explosion-proof electromagnetic reversing valve. The return oil at the lower end of the hydraulic cylinder is returned to the tank by the balance valve, the hydraulic-controlled check valve, the throttle valve, and the explosion-proof electromagnetic reversing valve. In order to make the weight drop smoothly, the brake is safe and reliable. A balancing valve is set on the return oil road to balance the circuit and maintain the pressure so that the falling speed will not change due to heavy objects. The flow is adjusted by the throttle valve to control the lifting speed. In order to make the brake safe and reliable, prevent accidents, increase the hydraulic control check valve, that is, hydraulic lock, to ensure safe self-locking when the hydraulic line accidentally burst. An overloaded voice-activated alarm was installed to distinguish between overload or equipment failure.
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