Gear pump is a simple, cheap, wide range of use, low work requirements, long service life, low noise and other advantages of the pump equipment, its use has improved the efficiency of many areas for the human to create A greater value. Gear pump is also prone to failure in the work, the next gear pump failure analysis and solutions to introduce and explain. Gear pump failure analysis and solutions First, the oil leakage Failure Analysis: (1) pump cover and seal with too loose. (2) oil seal skeleton spring off. (3) The sealing surface of the shaft is scratched. The solution: (1) Adjust the pump cover and seal gap. (2) Replace the seal. (3) re-seal the cover. Second, the gear pump does not absorb oil or flow Glitch analysis: (1) oil absorption position is too high or oil level is insufficient. (2) gear pump lax. (3) filter plugged. (4) the oil temperature is too high. The solution: (1) fill the oil tank to reduce the suction position. (2) replace the pump body. (3) Replace the sealing element and fasten the connecting piece. Third, the lack of pressure Failure Analysis: (1) gear pump radial clearance and axial clearance is too large, of which the impact of the gap greater. (2) Teeth crack, or a leak. (3) oil viscosity is too high or oil temperature is too high. (4) motor power and gear pump does not match. (5) filter plugged. Solution: (1) replace the pump body. (2) If the leakage is in the pump body and the pump cover plus pad, fastening the connector, if the pump is cracked, you should replace the pump. (3) No. 20 oil is suitable for 10 degrees -50 degrees temperature work, such as the temperature is too high should be installed cooling device. (4) the use of matching motor. (5) clean the oil filter. (6) readjust the pressure or replace the relief valve. Through the oil leakage, gear pump does not absorb oil or small flow, lack of pressure and other analysis and solution of several kinds of fault introduced gear pump failure we have a better understanding. Believe that with the economic and technological development, gear pump failure will be better resolved.
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