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改进前的M 1432砂轮主轴结构存在着两个大问题,如图1所示。一个是砂轮主轴5在端盖3处严重研沟;使装在主轴箱体7内的润滑油,流经主轴5划沟处与封油圈4和毛毡圈2结合处流入砂轮罩1及床身上,造成润滑油与冷却液混合。另一个问题是止推轴承8由于油甩净后而烧伤。根据这两个问题,我们进行了较深入的探讨,情况如下: 一、关于解决主轴前端漏油问题的情况: 经调查,发现主轴前端研沟处最深可达2毫米,究竟是什么原因造成的?经过大量的调查研究,下面这些问题应该排除: 1.主轴硬度不够,氮化层薄。实测某台报废主轴,其硬度
There are two major problems with the M 1432 grinding wheel spindle structure prior to modification, as shown in Figure 1. One is the grinding wheel spindle 5 in the end cap 3 serious grinding ditch; so that the lubricating oil installed in the spindle housing 7 flows through the spindle 5 and the sealing ring 2 and felt ring seal 2 flows into the grinding wheel cover 1 and the bed Body, resulting in lubricating oil mixed with the coolant. Another problem is that the thrust bearing 8 burns after the oil is thrown off the net. According to these two issues, we conducted a more in-depth discussion, the situation is as follows: First, on the issue of solving the front spindle oil spill problem: After investigation, found that the front end of the grinding gutter up to 2 mm, what is the reason After a lot of research, these problems should be ruled out: 1. Spindle hardness is not enough, nitride layer is thin. Measured a scrapped spindle, the hardness