1、 Reversing method: for the wear of one side of the gear surface, if the structure allows, you can change the position of the gear or turn it over 180 degrees, and use its non worn side, but it is better to turn it over in pairs, or replace the matched gear with a new one, so as to ensure the normal meshing of the gear.

2、 Ring gear method: tower gear is made of several gears, and the damage degree of each gear is different. If the teeth of individual gears are worn, they can be repaired by replacing the ring gear. First, turn off all the teeth of the gear to be repaired, and then make a ring gear and press fit it on the gear teeth. In order to prevent the new gear ring from loosening, it can be fixed by electric welding and spot welding along the circumference at the joint of the gear ring and the gear, or drilling and driving the stabilizing nail.

3、 Inlaid 12582 rural information network method: for gears with small load and low speed, after individual teeth are knocked out, the root of the bad gear is planed out of the trapezoidal groove on the planer during repair, and the new tooth embryo with the same groove shape is pressed in with a certain tightness, welded firmly and processed for shaping.

4、 Surfacing method: when individual or several teeth of the gear are worn or both sides of the gear end are worn beyond the limit, one or more layers of metal can be deposited on the whole or part of the surface of the gear according to the damage of the gear. The welding repair of gears can be divided into electric welding and gas welding. Surfacing repair gear, simple operation, good repair quality.

5、 Screw tooth making method: remove the worn tooth making gear, clean it, measure the tooth root thickness with vernier caliper, and flatten and clean the tooth falling part with a knife. According to the tooth root thickness, select the screw with corresponding diameter, and the thread length shall not be less than 1.5-2 cm. Then use a bench drill to drill a hole with the same diameter as the screw at the tooth falling part of the gear, and then tap it. Tighten the selected screw in the screw hole, then cut off the screw higher than the tooth top with a hacksaw, and then process it into teeth with the same tooth shape as the original with a file knife. (Agricultural Technology Network)