During the whole machine strengthening test of the mining loader, the chassis will have abnormal noise. The specific situation is: when the steering wheel is turned when the engine is running at idle speed, a part of the chassis will make a crisp metal impact sound, and it is uncertain where the steering wheel will make abnormal noise; When stepping on the accelerator to accelerate, the sound will become very weak or basically disappear.

根据该机故障现象和对其转向系统结构的分析，我们认为其机架、转向液压系统、变速器出现故障的可能性非常小，该异响可能是来源于以下3方面：一是传动轴伸缩的时候会产生异响，二是主减速器和差速器出现异响，三是后桥摆动架出现异响。

According to the failure phenomenon of the machine and the analysis of its steering system structure, we believe that the possibility of failure of its frame, steering hydraulic system and transmission is very small, and the abnormal sound may come from the following three aspects: first, the abnormal sound will occur when the transmission shaft is retracted, second, the abnormal sound of the main reducer and differential, and third, the abnormal sound of the swing frame of the rear axle.

1.排查传动轴

1. Check the transmission shaft

后桥在摆架上发生摆动时，后桥的输入法兰也是会随着后桥摆动的，使后传动轴的长度及空间位置发生改变。检查发现装载机在转向过程中，后传动轴并不会有明显的伸缩，该处不会存在异响可能性。

When the rear axle swings on the swing frame, the input flange of the rear axle will also swing with the rear axle, changing the length and spatial position of the rear transmission shaft. It is found that during the steering process of the loader, the rear transmission shaft will not expand significantly, and there will be no possibility of abnormal noise.

2.排查主减速器和差速器

2. Check the main reducer and differential

在后驱动桥的轮边减速器位置用手触摸能感觉到有撞击动作。我们更换了主减速器和差速器总成，经试机异响问题仍然没有。

At the wheel reducer position of the rear drive axle, you can feel the impact action by touching it with your hand. We have replaced the main reducer and differential assembly, but the problem of abnormal noise still hasn't been solved after test.

3.检查后桥摆架

3. Check the rear axle swing frame

为了模拟异响时候的工状，并可以实时在观察前、后摆动架的实际运行情况，我们会把该装载机开到检修平台上。通过多次原地转向、进退行驶试验，仔细观察摆架状态，发现后摆动架与桥壳之间存在3mm的相对窜动。正是由于后连接法兰在后摆动架存在窜动，引发了后摆动架与后桥壳上的连接法兰的相互撞击，从而产生异响了。

In order to simulate the working state in case of abnormal noise and observe the actual operation of the front and rear swing frames in real time, we will drive the loader to the maintenance platform. Through many in-situ steering, forward and backward driving tests and careful observation of the swing frame state, it is found that there is a 3mm relative movement between the rear swing frame and the axle housing. It is precisely because of the movement of the rear connecting flange on the rear swing frame that the rear swing frame collides with the connecting flange on the rear axle housing, resulting in abnormal noise.

当找到异响发生位置后，我们分析产生该间隙的原因。查看后桥图纸，并从后桥的供应商那里得到了相关情况。该型装载机后桥桥壳与后摆动架的理论设计间隙为1.1～2.15mm，安装时的调整垫片只有厚度为6mm的1种规格。

After finding the location where the abnormal sound occurs, we analyze the cause of the gap. Check the rear axle drawing and get the relevant information from the supplier of the rear axle. The theoretical design clearance between the rear axle housing and the rear swing frame of this loader is 1.1 ~ 2.15mm. During installation, the adjusting gasket has only one specification with a thickness of 6mm.

实际拆检出现异响的这台装载机，测量其调整垫片厚度只有5.1mm。再加上设计间隙，总共累积成了3mm的间隙

The thickness of the adjusting gasket of the loader with abnormal noise during the actual disassembly and inspection is only 5.1mm. In addition to the design gap, a total of 3mm gap is accumulated

以上就是为大家介绍的有关矿井装载机的详细介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以的态度,为您提供服务http://www.kuangjingjixie.com

The above is the detailed introduction of bonsai production mine 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