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Analysis of the noise caused by the failure of the hydraulic parts
Analysis of the noise caused by the failure of the hydraulic parts The failure of hydraulic components leads to noise and suction. It is one of the main reasons for the high noise of hydraulic pumps. The distributor of hydraulic pumps is also one of the most important components that easily cause noise. Here we will introduce in detail.
1. plunger pump or motor noise
(1) the phenomenon of air suction is one of the main reasons for the high noise of the hydraulic pump. When the air is mixed into the air, it is easy to form cavitation phenomenon in its high pressure area and propagate in the form of pressure wave, resulting in oil oscillation, resulting in cavitation noise. The main reasons are as follows:
(1) the oil filter of the hydraulic pump, the plugging of the inlet pipe or the high viscosity of the oil can cause the high vacuum at the inlet of the pump to make the air infiltrate.
(2) the damage of the oil seal on the shaft end of the hydraulic pump, the pilot pump, or the bad seal of the inlet pipe, resulting in the air entry.The oil level of the oil tank is too low to make the hydraulic pump suck into the air directly.When there is high noise in the work of the hydraulic pump, the above parts should be checked first and the problem should be dealt with in time. (2) the internal components of the hydraulic pump excessive wear, such as piston pump cylinder and valve plate, the plunger and the plunger hole with pieces of the wear and tear, injury, make a serious leak in the hydraulic pump, when the hydraulic pump output pressure and flow pulsation will produce small flow oil, causi |
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