After the underground loader works for a long time, the instrument panel and cab will shake, and the shaking phenomenon is becoming more and more serious, so that the cab and the whole machine also shake. The shaking phenomenon causes the material weighing of the machine to be inaccurate and cannot be used normally. So what are the reasons for the jitter of the underground loader?
一个原因是因为井下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。
One reason is that the hydraulic system of the underground loader adopts the steering priority mode, and the pressure oil output by the steering pump combines with the pressure oil output by the working pump to supply oil to the working device. The working pump only bears the load when the working device acts, while the steering pump not only bears the load when the working device acts, but also bears the load when steering. Therefore, the working time of the steering pump is relatively long and the wear is large.
再就是井下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。
Then, under the joint action of priority valve body, valve core, pressure regulating spring and pressure oil, the opening and closing of EF port change with each other according to a certain frequency, and a certain frequency of vibration will occur. Because the vibration is close to the natural vibration frequency of the instrument panel and cab, the instrument panel and cab resonate.
离合器发抖的根本原因是主、从动盘间压力分布不均,使离合器接合时压力增加不连续,导致离合器轴断续转动而引起机械间断起步。由于井下装载机的离合器发抖不仅影响工作效果,还会对传动系统零件有害的冲击载荷,甚损坏机件。
The root cause of clutch trembling is the uneven pressure distribution between the driving and driven plates, which makes the pressure increase discontinuous when the clutch is engaged, resulting in intermittent rotation of the clutch shaft and intermittent mechanical start. Because the clutch trembling of the underground loader not only affects the working effect, but also the harmful impact load on the transmission system parts, and even damages the machine parts.
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The above is the detailed introduction of the underground loader. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service http://www.kuangjingjixie.com