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Talking about the cause of hydraulic oil heating of automatic waste paper baler
Author : admin Time : 2019-03-22 AllPageView : 525
1. In the system, the unloading circuit has a fault, or when the oil pump stops working, the unloading circuit cannot be unloaded because there is no oil unloading circuit. The total flow of the pump overflows under high pressure, and the overflow loss causes the oil to rise.
2. Select the pump supply system with the pump capacity as a quantitative according to the forward speed. The remaining flow is overheated by the overflow valve under high pressure. The selection of hydraulic components for hydraulic systems is unreasonable. When the valve is selected, the system is too hot and the system is too hot due to the standard size being too small and the loss is too high, resulting in noise. When the pump flow rate is too large, the remaining oil overflows from the relief valve, causing heat.
3. The component accuracy is not high and the equipment quality is poor. The contradiction between mechanical relative motion. The planning and construction of the hydraulic components of the system are unreasonable and the production quality is poor. When the oil passes through the valve, the pressure will disappear and the leak will be severe.
4. The system piping is too thin and too long, the winding is too long, the partial pressure loss and pressure loss are too large along the path, and there are residual hydraulic circuits or hydraulic components in the hydraulic system.
5, the part of the gap is too small, or the wear gap is too large, the internal and external leakage is too large, the volume loss is too large, such as pump power drop, heating and so on.
6. The fuel tank is too small, the heat dissipation area is not good, there is no oil cooling equipment, or the cooling equipment, the capacity is too small.
7. The viscosity of the selected oil is not suitable, the viscosity is large, the viscous resistance is large, and the viscosity increases when it is too small. In both cases, oil heating can be formed.

8. The working pressure of the hydraulic system is adjusted higher than the actual demand. Since the seal is too tight, or the seal is damaged and leaks, adjust the high pressure to work.

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