Mobile hydraulic building hoist works

Mobile hydraulic building hoist works four mobile building hoist works:

 1) hydraulic oil is formed by the vane pump some pressure, the oil filter, explosion-proof solenoid valve, throttle valve, check valve , balance into the lower end of the hydraulic cylinder, the upward movement of the piston cylinder, the heavy lifting, the upper end of the hydraulic cylinder return oil through flameproof solenoid valve back to the tank, which is adjusted by the rated pressure relief valve, pressure gauge watching the pressure gauge readings. 2) hydraulic cylinder piston downward movement (both heavy falls). -Oil explosion-proof solenoid valve into the cylinder upper end, a lower end of the hydraulic cylinder return oil through balancing valve, check valve, throttle valve, explosion-proof solenoid valve to the tank. In order to decrease the weight stable, safe and reliable braking, set the balancing valve, balancing loop back to the oil on the road, keeping pressure on the rate of decline from the weight change, the throttle valve regulates the flow, control the building hoist speed. For the safe and reliable braking, to prevent accidents, increase check valve, namely hydraulic lock, ensure that when unexpected burst hydraulic line can be safely self-locking. Overload installed voice alarm, to distinguish overload or equipment failure.