The hydraulic scissor lift platform is a versatile aerial work equipment with high stability and high efficiency. Its lifting principle is that the hydraulic oil is formed by the vane pump with a certain pressure. The oil filter, the explosion-proof electromagnetic reversing valve, the throttle valve, the hydraulic control check valve and the balance valve enter the lower end of the liquid cylinder to make the piston of the liquid cylinder. The upward movement, lifting the heavy object, the oil returning to the upper end of the liquid cylinder is returned to the fuel tank through the explosion-proof electromagnetic reversing valve, and the rated pressure is adjusted through the overflow valve, and the reading value of the pressure gauge is observed through the pressure gauge.
The piston of the cylinder moves downwards. The hydraulic oil enters the upper end of the liquid cylinder through the explosion-proof electromagnetic reversing valve, and the oil returning to the fuel tank is returned to the fuel tank through the balance valve, the hydraulic control 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, and a balance valve is arranged on the oil return road to balance the circuit and maintain the pressure so that the descending speed is not changed by the heavy object, and the flow rate 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, the hydraulic lock, to ensure safe self-locking when the hydraulic line accidentally bursts. An overloaded voice alarm is installed to distinguish between overload or equipment failure. After understanding these principles, it is relatively simple to operate the hydraulic lift, and the small problems that occur can be solved by themselves.
In the normal operation of the hydraulic lifting platform, if there is no good care or irregular operation, the following experts will give you a detailed summary of the faults encountered in the use of the lifting platform.
1. The hydraulic lifting platform has serious loss of oil cylinder. If the inner closed ring is damaged unevenly or there are obstacles inside, it will easily cause uneven force, which will result in uneven lifting height of the cylinder. It is recommended to check whether the cylinder is normal.
2. There is foreign matter inside the oil supply pipe of the hydraulic lifting platform, which causes the hydraulic oil to cause uneven force. The unevenness of the table will occur. It is recommended to check carefully whether the conveying pipe is unblocked.
3. The production scale of the hydraulic lifting platform is inconsistent, which belongs to the quality defects of the lifting platform equipment. It is recommended to contact the manufacturer for replacement. The probability of occurrence is low.
4. The intermediate shaft of the hydraulic lifting platform is inconsistent, resulting in the lifting platform not working properly. The platform is seriously damaged and the table is tilted. Please carefully check that the general scissor aerial work platform has not been strictly tilted before leaving the factory. The market has caused a lot of accidents. For the tilt detection, the majority of small enterprises are not very concerned about the detection of this link, which is why there are such a large number of lifting equipment. The problem of the cylinder and the power unit system is often the lack of power and the problem of unqualified cylinder quality. It is also a problem that needs to be paid attention to by the enterprise itself.