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Where is the noise source of the four-column hydra

  The noise sources of the motor of the four-column hydraulic press mainly include aerodynamic noise generated by cooling fans, unbalanced rotor operation, and electromagnetic vibration, commutator and various parts and components.

Due to the hydraulic pump and hydraulic motor of four-column hydraulic press in the working process, the periodic fluctuation of oil pressure in each working chamber and the sharp periodic change of the working cavity in the oil pressure area make the parts shell produce vibration noise, because of the lack of oil supply cavitation cavitation phenomenon, causing intense irregular vibration; In another case, different degrees of energy pulsation resistance is converted into pressure pulsation, resulting in forced vibration of the vessel, at this time, the four-column hydraulic press produces liquid noise.

In the four-column hydraulic press, all kinds of valve work depends on the role of spring, it is easy to produce vibration, hydraulic machine reversing valve reversing, the impact sound is instantaneous; The high frequency vibration generated by the spool of the relief valve during oil discharge is continuous. If the external interference frequency of the four-column hydraulic press is just the damping frequency formed in the state, it will cause resonance to increase noise. In the hydraulic transmission pipeline system, caused by certain components or the interference such as unstable flow of the oil, this state is only temporary, four-column hydraulic press pipeline internal will have repercussions, under certain conditions, combined with a pump or valve pipe in the pipe system can produce continuous vibration, oil pipe when the length is just equal to the line of degree, It produces intense high-frequency noise.

Four-column hydraulic press tank is a large injection area of the device, is also the main part of the transmission and expansion of noise, if the hydraulic pump motor is directly installed on the tank cover, the vibration of the pump or motor will cause the vibration of the oil.

Ruian Tianrui Hydraulic Machinery Co., Ltd. specializes in the production of four column hydraulic press, more related products please pay attention to the official website www.zjtianruiyeya.com

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