Manufacturing method of combined duplex gear

Abstract

The invention provides a manufacturing method of a combined duplex gear. A duplex planetary wheel is designed in a split mode, the precision of two sets of teeth is improved, and accurate positioningis carried out through plug-in mounting, so that the manufacturing cost is saved on the premise that the precision requirement is met. The duplex gear is divided into a helical gear and a spur gear shaft, the spur gear is arranged on the spur gear shaft, the helical gear and the spur gear shaft are respectively manufactured and molded, and then the spur gear shaft with the spur gear is inserted into a central hole of the helical gear in a fixed angle interference fit mode.

Description

technical field [0001] The invention relates to the technical field of manufacturing dual gears, in particular to a manufacturing method for combined dual gears. Background technique [0002] In common planetary gear transmission applications, there are NW, WW, and NGWN planetary structures according to the meshing mode, all of which belong to the driving shaft gear train. In the above types, the planetary gears are composed of involute teeth with two different parameters, called double planetary gears. The processing requirement of the double planetary gear is that the precision needs to reach 5 to 6 grades, and the two sets of teeth of each double planetary gear must maintain the same tooth angle, so the requirements for processing double gears are relatively high. [0003] When the requirements for equipment accuracy are relatively high, both the double planetary gear and the central gear need to reach the national standard accuracy of 5 to 6, and the double planetary ge...

AI Technical Summary

Problems solved by technology

[0003] When the requirements for equipment accuracy are relatively high, both the double planetary gear and the central gear need to reach the national standard accuracy of 5 to 6, and the double planetary gear is limited by the structure, and after ordinary gear shaping, it can only be used for outer gears with relatively large tooth shapes. The teeth are ground, and the precision of the tooth shape is relatively small, which cannot meet the requirements, resulting in high noise, high temperature and low precision of the whole machine equipment.

The existing relatively advanced truss gear machine can make the double gears reach 6-level precision, and the same machine tool can be clamped and processed once, and each gear is processed exactly the same, but the cost of purchasing equipment is high, and it cannot be implemented without investing in equipment.

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