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(1)振动和噪声原因:吸油管路中有气体或者吸油管的阻力太大、油液黏度太高、滤网阻塞以及油面太低等,工作时吸进了大量空气,引起气穴现象产生振动和噪声,可适当增大吸油管内径,选用合适的液压油,清洗或更换滤油器等。液压元件选用不当,如维修换件用的液压泵、控制阀等元件不合格。控制阀技术状况不良,如阀座密封不良或配合有偏差、调压弹簧疲劳或损坏、阀芯的阻尼孔阻塞使其动作不灵等都会引起
(1) Causes of vibration and noise: there is gas or oil pipe suction resistance is too large, the oil viscosity is too high, the filter blockage and the oil surface is too low, etc., sucked a lot of work air, causing cavitation Produce vibration and noise, may be appropriate to increase the suction pipe diameter, the choice of suitable hydraulic oil, cleaning or replacement of oil filters. Improper selection of hydraulic components, such as the replacement parts for hydraulic pumps, control valves and other components failed. Poor technical conditions of the control valve, such as bad seat seal or with deviation, pressure spring fatigue or damage, the valve orifice blocking causes its action is not working well and so will cause