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Arc Gear Pump Fault Causes and Remedies
Arc gear pump in the course of its use prone to the following problems: â… , gear pump internal parts wear gear pump internal parts wear 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…¡, arc gear pump housing wear mainly floating sleeve bore wear (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 wear is the circumferential wear of the working surface in the shell. This wear is mainly caused by the net oil added, so the oil without impurities must be added. â…¢, oil seal wear, rubber seal aging unloading rubber seal aging deterioration, loss of elasticity, the high pressure oil chamber and the low pressure oil seal lost the role of the seal will produce high pressure oil pressure to the low pressure oil chamber, known as the " Internal leakage ", which reduces the working pressure and flow of the pump.