一些农机具的传动齿轮，由于负荷不均、螺栓松动、啮合间隙的改变等原因，会使齿轮根切打牙。对根切齿轮，若暂时买不到合适的齿轮，可采取镶牙修复法修复，以应急使用。方法如下：1．将打牙的齿轮卸下，清洗干净，用游标尺测准齿根厚度，并将掉牙部位用挫刀锉平。2．根据齿根 Some of the transmission gear farm machinery, due to uneven load, loose bolts, meshing gap changes and other reasons, will make the gear root cut stomatism. Root gear, if temporarily can not buy a suitable gear, can be used to repair the denture repair to emergency use. The method is as follows: 1. Remove the tooth-beating gear, clean it, measure the root thickness with the slide rule, and flatten the tooth-removing part with a razor blade. 2. According to the roots