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根据售后服务反馈的问题,一拖生产的装载机质量问题多为“转向不灵”。该故障的主要原因是装载机的铰接机架有缺陷。原机架的结构如图1所示。从图中可以看出：用回转轴穿过前机架的铰接座上耳板和下耳板与后机架铰接座耳板焊合件,完成前机架与后机架的铰接。回转轴用螺栓与前机架铰接座上耳板固定,而与后机架铰接座耳板焊合件的衬套为滑动配合。用回转轴上下压注油杯的润滑脂润滑回转轴与衬套。前轮转向时,前机架围
According to the feedback from the after-sales service, the quality of the loaders produced by YTO is mostly “not working smoothly.” The main reason for the failure is that the articulated frame of the loader is defective. The original rack structure shown in Figure 1. It can be seen from the figure that the articulation of the front frame and the rear frame is completed by using the rotating shaft to pass through the hinge plates of the front frame and the lower ear plate and the rear frame to weld the brackets of the ear plates. The pivot shaft is bolted to the ear plate of the front frame hinge seat, and is slidably matched with the bush of the rear frame hinge ear plate weldment. Lubricate the rotating shaft and bushing with the grease on the rotary shaft and the grease cup. Front wheel steering, front frame circumference