Method for processing large combination type herringbone gear

Abstract

The invention discloses a method for processing a large combination type herringbone gear, which comprises the following steps of: forging; carrying out rough processing of the end surface, an incircle and an excircle on a processed workpiece by utilizing a lathe; drilling a hoisting hole; carrying out rough gear hobbing on the workpiece by utilizing a gear hobbing machine; carrying out tempering processing on a gear; semifinishing an inner hole, the end surface and an addendum circle by utilizing the lathe; drawing any pair of end surface gear central lines based on the end surface of one side of a reference groove, making a reference groove mark on an addendum and drawing a position line of each hole; drawing and drilling each hole by using a drilling machine; finishing and lathing the inner hole and both end surfaces of the lathe to a preset size; positioning based on a reference surface, carrying out correcting gear grinding on the addendum circle ; chambering, drilling and articulating each hole on a gear ring; and screwing a bolt and hinging the bolt and combining two gears into a pair. The invention has the advantages of material saving, cost reduction and mechanical performance improvement of products.

Description

Technical field: [0001] The invention relates to a processing method of a gear, in particular to a processing method of a large combined type herringbone tooth. Background technique: [0002] In the hoisting, luffing, and anchor winch reel driving devices of large floating cranes and gantry cranes, a large number of large combined herringbone gears are required. Therefore, for a single gear, the tooth width is small, the wall is thin, and the outer diameter is large, and this kind of gear adopts the free forging process, which not only increases the forging cost, but also easily deforms during processing, whether it is heat treatment deformation Or in the process of machining, the deformation is inevitable and difficult to control, which not only reduces the production efficiency, but also the processing quality cannot be guaranteed. Invention content: [0003] The purpose of the present invention is to overcome the above disadvantages and provide a processing method for ...

AI Technical Summary

Problems solved by technology

[0002] In the hoisting, luffing, and anchor winch reel driving devices of large floating cranes and gantry cranes, a large number of large combined herringbone gears are required. Therefore, for a single gear, the tooth width is small, the wall is thin, and the outer diameter is large, and this kind of gear adopts the free forging process, which not only increases the forging cost, but also easily deforms during processing, whether it is heat treatment deformation It is inevitable and difficult to control the deformation during machining, which not only reduces the production efficiency, but also the processing quality cannot be guaranteed

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