论文部分内容阅读
近年我团购进哈萨克斯坦产德特—75拖拉机7台,经一年来的使用,其机械性能和适用性都较理想.尤其该车型在变速箱前装有倒顺车减速器,使其具有前进快慢、倒档共21个档位,从而提高了机车效率.但有的机车使用半年后,倒顺车减速器内部件均有不同程度的损坏,从而产生拨叉损坏,292209K轴承飞散,结合齿套损坏,使机车工作时掉档,究其原因是:1.结构和设计上的某些部位不太合理.2.32213KM轴承座固定销上窜,又无外档圈,座圈带着轴承外圈窜动,使第一轴后端失去原装配尺寸.3.第一轴后部位套筒内292209KM轴承在支承输出轴前端,该轴承的承受扭力欠佳,造成输出轴轴向窜动,轴承飞散.
In recent years, I bought a group of Kazakhstan-made Detroit -75 tractor 7, after a year of use, its mechanical properties and applicability are more ideal. In particular, the car before the gearbox fitted with a car reducer, make it forward Speed, reverse a total of 21 stalls, thereby enhancing the locomotive efficiency.However, some locomotives after six months, down the cisternal reducer internal parts have varying degrees of damage, resulting in fork damage, 292209K bearing scattering, combined with the teeth Set of damage, the locomotive off the file, the reason is: 1. Some parts of the structure and design is not very reasonable .2.32213KM bearing pin up channeling, no outer ring, seat with a bearing outside The ring moves, so that the first rear end of the shaft loses the original assembly size .3 292209KM bearing within the sleeve after the first axis supporting the front end of the output shaft, the bearing torque to withstand poor, resulting in axial displacement of the output shaft, the bearing Flying scattered.