(1) Incorrect installation of the vane pump coupling: Because the coupling gap between the coupling and the shaft is too small or no gap, the bearing will be injured when it is struck hard, resulting in early damage to the bearing and affecting the life of the entire pump core. In addition, if the coupling is installed without a certain axial clearance, the pump is directly and rigidly installed on the pump casing with screws, which will make the bearing want to be stressed. If it is subjected to axial force for a long time, the bearing will be fast. Damage and eccentricity hit the pump core. On the surface, it looks like the pump core has failed, but it is actually a bearing.
(2) The coaxiality of the vane pump is too poor: if the coaxiality exceeds the specified value during installation, the bearing and the entire pump core will be eccentric and damaged early, and the shaft will be cut off (the shaft is cut off at the thickest part of the shaft head) The coaxiality is generally controlled at ≤0.1 mm.
(3) The oil of the vane pump is too dirty: Because the oil tank is not sealed, the surrounding dust and debris are mixed into the oil, which makes the cleanliness of the oil exceed the standard. If the filtering accuracy is insufficient or there is no filter, the pump core will be quickly drawn. Injury and damage
(4) Deterioration of the hydraulic oil of the vane pump: Because the cooling device is not installed, the oil temperature will continuously increase during continuous use of the machine. If the oil temperature is as high as 70 ° C for a long time, the life of the oil pump will be greatly shortened, and it will generally be damaged (or even shorter) within six months to one year.
(5) Water in oil: In the water-cooled device, due to the poor sealing, water enters the oil, causing all the parts of the oil pump inside the oil pump to rust, and the rusted products will accelerate wear during high-speed rotation. And shorten the life, the oil pump shaft seal will be damaged early and the pump shaft leaks oil
(6) Change the direction of the oil port: When the direction of the oil port is not suitable and the inexperienced customer adjusts it by themselves, the pump core pin is not inserted into the pin hole (caused by pulling out during rotation), and the space of the oil pump suction port is reduced. When the oil absorption is blocked, the engine oil is not smooth. It is manifested as: excessive noise, pressure swing, long-term use will increase the oil temperature too fast, and the life of the stator will be shortened after the impact of the curve inside the stator is corrugated. In addition, when the seal is cut or the screws are not evenly tightened during rotation, oil leakage may also occur.
Zhejiang Yongling Hydraulic Machine Co , Ltd. is a professional China manufacturer and supplier of Hydraulic Vane Pumps . Our products are widely used in cutting, plastic, forging, engineering, leather, pressure, metallurgy, agriculture, transportation machinery and machine tools, hydraulic stations, automatic production lines and other fields. It has won a good reputation in China for its stable and reliable quality, and was used in the torch tower of the 2010 Asian Games. Our products occupy most of the domestic market and are exported to Southeast Asia, Russia, Africa and other foreign markets. Welcome to purchase: https://www.china-vanepump.com/
(2) The coaxiality of the vane pump is too poor: if the coaxiality exceeds the specified value during installation, the bearing and the entire pump core will be eccentric and damaged early, and the shaft will be cut off (the shaft is cut off at the thickest part of the shaft head) The coaxiality is generally controlled at ≤0.1 mm.
(3) The oil of the vane pump is too dirty: Because the oil tank is not sealed, the surrounding dust and debris are mixed into the oil, which makes the cleanliness of the oil exceed the standard. If the filtering accuracy is insufficient or there is no filter, the pump core will be quickly drawn. Injury and damage
(4) Deterioration of the hydraulic oil of the vane pump: Because the cooling device is not installed, the oil temperature will continuously increase during continuous use of the machine. If the oil temperature is as high as 70 ° C for a long time, the life of the oil pump will be greatly shortened, and it will generally be damaged (or even shorter) within six months to one year.
(5) Water in oil: In the water-cooled device, due to the poor sealing, water enters the oil, causing all the parts of the oil pump inside the oil pump to rust, and the rusted products will accelerate wear during high-speed rotation. And shorten the life, the oil pump shaft seal will be damaged early and the pump shaft leaks oil
(6) Change the direction of the oil port: When the direction of the oil port is not suitable and the inexperienced customer adjusts it by themselves, the pump core pin is not inserted into the pin hole (caused by pulling out during rotation), and the space of the oil pump suction port is reduced. When the oil absorption is blocked, the engine oil is not smooth. It is manifested as: excessive noise, pressure swing, long-term use will increase the oil temperature too fast, and the life of the stator will be shortened after the impact of the curve inside the stator is corrugated. In addition, when the seal is cut or the screws are not evenly tightened during rotation, oil leakage may also occur.
Zhejiang Yongling Hydraulic Machine Co , Ltd. is a professional China manufacturer and supplier of Hydraulic Vane Pumps . Our products are widely used in cutting, plastic, forging, engineering, leather, pressure, metallurgy, agriculture, transportation machinery and machine tools, hydraulic stations, automatic production lines and other fields. It has won a good reputation in China for its stable and reliable quality, and was used in the torch tower of the 2010 Asian Games. Our products occupy most of the domestic market and are exported to Southeast Asia, Russia, Africa and other foreign markets. Welcome to purchase: https://www.china-vanepump.com/
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