山东装载机异常抖动怎么回事？

山东装载机http://www.sdyongbaojixie.com/在工作3000小时之后，会出现仪表台、驾驶室抖动现象，且抖动现象越来越严重，以至驾驶室、整机也产生抖动。抖动现象造成该机物料称重不准确，无法正常使用。下面永保机械的技术人员给大家分析一下引起抖动的原因有哪些？
   
1、山东超低装载机液压系统采用转向优先方式，转向泵输出的压力油与工作泵输出的压力油合流后向工作装置供油。工作泵只有在工作装置动作时才承受负荷，而转向泵不但在工作装置动作时承受负荷，转向时也承受负荷，因此转向泵工作时间相对较长、磨损较大。
Shandong ultra-low-loader hydraulic steering system uses priority mode, steering pump output pressure oil pump output pressure of the working oil to the working device after merging oil. Pump only work when the work equipment to

withstand the load operation, while steering pump not only withstand the load at work means action, but also bear the load when steering, steering pump and therefore a relatively long time, wear large.
   
2、山东装载机在优先阀阀体、阀芯、调压弹簧和压力油的共同作用下，EF口开启与闭合按照一定频率相互变换，便发生一定频率的振动。由于该振动与仪表台、驾驶室的固有振动频率接近，导致仪表台、驾驶室发生共振。
Shandong loaders under the joint action priority valve body, valve, pressure regulator spring and oil, EF mouth opening and closing transform each other according to a certain frequency, the vibration of a certain frequency will occur.Since the vibration and dashboard, close to the natural frequency of the cab, resulting in the instrument panel, cabin resonance.
   
3、山东装载机http://www.sdyongbaojixie.com/如果在发生抖动时转动转向盘，优先阀的EF口就会关闭，转向泵就不会通过优先阀向工作装置液压系统提供脉冲油液，装载机也就不会发生抖动现象。 
If you turn the steering wheel loaders Shandong in the event of a shake, the EF port priority valve closes, it will not provide a pulse steering pump oil to the hydraulic system via priority valve, loaders will not happen jitter.