Steering pump is the power steering of the car. At present, the major domestic models such as Jiefang, Dongfeng, Great Wall Pickup and Jinbei Bus adopt the blade type steering booster pump. This steering pump is equipped with a flow control valve and safety valve, small size, light weight, the system connection is simple, the disadvantage is the noise. Steering pump noise is mainly due to air mixed in the system, especially in the hydraulic pump suction zone, due to lower pressure, prone to cavitation, the bubble in the high pressure zone volume is compressed to low pressure zone, the volume suddenly increased, resulting Explosion and noise. Therefore, the installation must be sealed into the oil pipeline to prevent vibration caused by loose joints; sealing material to be very reliable, and keep the tank enough hydraulic oil. The second reason pump noise is flow control valve failure, such as the valve hole and the valve with the improper, valve Maojian, between the safety valve and the valve dirty dirt seal is not round or notched, etc., can be Cause noise. Especially in the control valve work, the system pressure transient failure of the control valve spring failure, which will exacerbate the noise. Therefore, you should check the use of the control valve, check whether the mating parts with wear and tear, pull the hair, check whether the failure of the spring, if necessary, replace these parts. The third reason for pump noise is caused by mechanical vibrations. Therefore, the installation of steering pump, pump shaft and the host to ensure that the coaxial error of less than 0.1mm, less than 30 degrees tilt, the connection pipe not too thin, try to reduce the elbow to avoid liquid vortex. Steering pump speed should not be too high, to avoid damage to bearings.
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Ningbo Le Monde Import & Export Co., Ltd. , https://www.lemondelighting.com
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