Circular arc gear pump is through a pair of parameters and structure of involute gear rolling mutual engagement, the tank of low-pressure oil to work can be an important part of high-pressure oil. Is the engine of mechanical energy into hydraulic power unit. In the course of its use prone to the following problems. â… , internal pump wear parts pump internal wear and tear will cause internal leakage. Among them, the leakage area between the floating bushing and the gear end face is large, which is the main part of the internal leakage. This part of leakage accounted for 50% of the total internal leakage of about 70%. The wear and tear of the lost circulation gear pump volumetric efficiency decreased, pump output power is much lower than the input power. The loss of all the heat into the heat, it will cause the pump overheating. If the combination of flat compression, due to work floating sleeve will be a small amount of exercise caused by wear and tear, resulting in slow or can not enhance the farm tools, such a floating sleeve must be replaced or repaired. â…¡, wear and tear of the oil pump housing is mainly the wear of the floating sleeve hole (gear shaft and sleeve of the normal gap is 0.09 ~ 0.175mm, the maximum shall not exceed 0.20mm). Gear work by the role of pressure oil, the gear tip close to the pump housing, wear low pressure chamber part of the pump. Another kind of abrasion is circular wear in the working face of the circular arc gear pump housing. The wear is mainly caused by the net oil added, so the oil without impurities must be added.
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