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当汽车起重机以不低于２０ｋｍ／ｈ速度行驶制动时，吊臂会自动向前窜动，这种窜动有点窜动和线窜动两种情况。下面结合ＱＹ２５型汽车起重机吊臂伸缩系统液压原理图分析这种现象的原因及排除方法。 １．点窜动现象 ＱＹ２５型汽车起重机吊臂伸缩系统液压原理如附图所示。当伸
When the truck crane driving at a speed of not less than 20km / h, the boom will automatically move forward, this kind of movement a little bit and the case of two movements. The following combination of QY25 truck crane telescopic boom hydraulic schematic diagram to analyze the reasons for this phenomenon and troubleshooting. 1. Point moving phenomenon QY25 crane crane telescopic hydraulic system as shown in the figure. When stretched