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?
一個原因是因為井下裝載機液壓系統(tǒng)采用轉向優(yōu)先方式,轉向泵輸出的壓力油與工作泵輸出的壓力油合流后向工作裝置供油。工作泵只有在工作裝置動作時才承受負荷,而轉向泵不但在工作裝置動作時承受負荷,轉向時也承受負荷,因此轉向泵工作時間相對較長、磨損較大。
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.
再就是井下裝載機在優(yōu)先閥閥體、閥芯、調壓彈簧和壓力油的共同作用下,EF口開啟與閉合按照一定頻率相互變換,便發(fā)生一定頻率的振動。由于該振動與儀表臺、駕駛室的固有振動頻率接近,導致儀表臺、駕駛室發(fā)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.
離合器發(fā)抖的根本原因是主、從動盤間壓力分布不均,使離合器接合時壓力增加不連續(xù),導致離合器軸斷續(xù)轉動而引起機械間斷起步。由于井下裝載機的離合器發(fā)抖不僅影響工作效果,還會對傳動系統(tǒng)零件有害的沖擊載荷,甚損壞機件。
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://yygsbaby.com