| 摘要 |
The present disclosure relates to a fixing apparatus of a track pin for a track chain of a crawler track. Ends of a link are connected by a bushing and a track pin, and the track pin is fixed not to be separated from the link. A ring guide groove is formed with a groove inside diameter having a constant depth to narrow more and more from a fringe part of a pin hole in a surface of the link in which the track pin is inserted. A ring hole is formed at an outer peripheral surface of the track pin bordering on the ring guide groove in the link to be communicated with the ring guide groove and to be inserted with a predetermined depth toward an inside diameter part as the ring guide groove. A pressing ring is inserted into the ring hole in the track pin through the ring guide groove. The pressing ring is formed with a thickness not smaller than a width between the ring guide groove and the ring groove. The width of the pressing ring is formed not larger than a length from a front end of the ring guide groove to an inside end of the ring groove. It is possible to prevent the track pin to be separated by pressing the ring hole in the track pin and the ring guide groove in the link. |
