Hydraulic lifting platform is such a circuit. When the hydraulic cylinder stops working, the pump I is filled with liquid through the one-way valve bidirectional 4, so that energy can be stored. When the auxiliary pressure reaches a certain set value, the unloading valve 3 opens to make the pump more uniform, and the second valve keeps the auxiliary valve pressure. When the main valve 5 is connected, the pump and the auxiliary oil are simultaneously supplied to the hydraulic cylinder, so that the piston can move quickly. The regulating pressure of the unloading valve 3 should be higher than the maximum working pressure of the system. What is the reason for the insufficient output flow of the hydraulic construction lift
pump? The summary is as follows: 1, the pump does not discharge oil or the output flow is not enough, first check whether the pump steering is wrong and the speed is too low. platform is a kind of lifting machinery that vertically transports people or objects. It also refers to the equipment for vertical transportation in logistics systems such as factories and automatic warehouses. The lifting platform is often equipped with a variety of flat transportation equipment as a connecting device for conveyor lines of different heights. It is generally driven by hydraulic pressure, so it is called hydraulic lifting platform. In addition to transporting goods at different heights, it is widely used in high-altitude installation and maintenance operations. The steering of the motor can change the direction of the pump. The speed is too low, it is necessary to replace the high-speed motor or install a speed regulator. The liquid level in the water tank is too low. Oil should be unqualified, or it should be unqualified. During high-altitude operations, the oil temperature of the lifting platform is too high, which increases the internal leakage of the pump. Air cooling can be used, or air cooling can be added to the storage tank. Pump noise and insufficient flow are the manifestations of this failure. Need to determine the vulnerability point to fix 5. The feed pipe is blocked, the filter may be blocked, or there may be deposits in the pipe. The coarse filter pad needs to be cleaned or replaced. If necessary, check the oil stains. 6. The hydraulic oil lifting platform impurities and iron filings enter the pump, causing serious wear of the parts. 7. The gear pump works under ultra-high pressure, which makes the gear shaft deflection larger. Partial wear and tear, when the pump works under normal pressure, the leakage increases by a large amount. The transformation method needs to investigate the cause of the pressure rise, such as the poor function of the pressure valve, in order to take measures. When the temperature of the hydraulic oil of the hydraulic lifting platform is very high, the viscosity of the oil will decrease too much, the internal leakage will increase, and the output will decrease. platform is a kind of lifting machinery that vertically transports people or objects. It also refers to the equipment for vertical transportation in logistics systems such as factories and automatic warehouses. The lifting platform is often equipped with a variety of flat transportation equipment as a connecting device for conveyor lines of different heights. It is generally driven by hydraulic pressure, so it is called hydraulic lifting platform. In addition to transporting goods at different heights, it is widely used in high-altitude installation and maintenance operations. The hydraulic lifting cage
platform is driven by steel wire ropes and is mostly used to transport goods. It is composed of tower, hanging basket, hoist, etc. The tower is generally a truss structure, which is pulled by cables to keep it upright. The hanging basket is welded with section steel and is a container for loading goods. The hoist is fixed on the ground, the wire rope is connected to the gondola through the pulley on the top of the tower, and the gondola is pulled to run up and down, and the operator controls it on the ground. It is necessary to understand the operation and usage of the main engine, understand the reasons for the increase in oil temperature, and take measures.
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