Car Bollards Security

The piston of the cylinder moves downward (that is, the heavy object descends). The hydraulic oil enters the upper end of the cylinder through the explosion-proof electromagnetic reversing valve, and the return oil at the lower end of the cylinder returns to the oil tank through the balance valve, hydraulic control check valve, throttle valve, and explosion-proof electromagnetic reversing valve. In order to make the heavy objects descend smoothly and brake safely and reliably, a balance valve is set on the oil return line to balance the circuit and maintain the pressure so that the descending speed is not affected by the weight. The throttle valve adjusts the flow and controls the rising speed. Hydraulics are more complicated than electric ones, and they have more accessories. The internal hydraulic electromechanical integration adopts intracavity hydraulic technology to achieve integrated sealing. After the pressure oil enters the oil inlet chamber of the motor through the oil distribution shaft, it enters the top of the corresponding plunger cylinder through the barrier-free rising platform housing groove. The hydraulic force FN acting on the plunger acts on the eccentric wheel center O through the connecting rod, and its tangential force F. The torque T is formed on the rotation center of the crankshaft, causing the crankshaft to rotate counterclockwise. Due to the different positions of the three plunger cylinders, the magnitude of the torque generated is also different.