1. When the hydraulic freight elevator is to work, first turn on the power, press the start button. The hydraulic power unit's motor drives the gear pump, the hydraulic oil is formed by the vane pump to a certain pressure, through the oil filter; flameproof electromagnetic directional valve ; throttle valve; hydraulic check valve; balance valve into the lower end of the cylinder, so that the liquid cylinder piston up movement, lifting heavy objects.
2. The piston of the hydraulic cylinder moves downward (heavy weight descends), the hydraulic oil enters the upper end of the hydraulic cylinder through the explosion-proof electromagnetic reversing valve, and the hydraulic cylinder returns the oil through the balance valve; the hydraulically-controlled check valve; the throttle valve; Explosive electromagnetic directional valve back to the tank.
3. In order to make the weight descend smoothly, the brake is safe and reliable. The balance valve is set on the return oil road to balance the circuit. The pressure is kept so that the falling speed is not changed by the heavy object. The flow is adjusted by the throttle valve to control the lifting speed.
4. In order to make the brake safe and reliable, to prevent accidents, the hydraulic freight elevator can increase the hydraulic control check valve, that is, the hydraulic lock, to ensure safe self-locking when the hydraulic pipeline accidentally burst, and prolong the service life.
5. Hydraulic freight elevators consist of a work platform and the electrical control system used to operate them, the lifting arm, the operating mechanism, and the hydraulic power unit.
2. The piston of the hydraulic cylinder moves downward (heavy weight descends), the hydraulic oil enters the upper end of the hydraulic cylinder through the explosion-proof electromagnetic reversing valve, and the hydraulic cylinder returns the oil through the balance valve; the hydraulically-controlled check valve; the throttle valve; Explosive electromagnetic directional valve back to the tank.
3. In order to make the weight descend smoothly, the brake is safe and reliable. The balance valve is set on the return oil road to balance the circuit. The pressure is kept so that the falling speed is not changed by the heavy object. The flow is adjusted by the throttle valve to control the lifting speed.
4. In order to make the brake safe and reliable, to prevent accidents, the hydraulic freight elevator can increase the hydraulic control check valve, that is, the hydraulic lock, to ensure safe self-locking when the hydraulic pipeline accidentally burst, and prolong the service life.
5. Hydraulic freight elevators consist of a work platform and the electrical control system used to operate them, the lifting arm, the operating mechanism, and the hydraulic power unit.
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JIANGMEN ESCLIGHTING TECHNOLOGY LIMITED , https://www.esclightingfan.com