Special machining method of large module gear of heavy anchor machine

Abstract

The invention discloses a special machining method of a large module gear of a heavy anchor machine. The special machining method comprises the following steps that forging is conducted; rough machining of the end faces, the inner circle and the outer circle of a processed workpiece is conducted by using a lathe; a lifting hole is drilled; rough hobbing is conducted the workpiece by using a machining center; quenching and tempering is conducted on the gear; semi-finish machining of an inner hole, the end faces and crest circles is conducted by using the lathe; by making the end face of one side of a benchmark groove as a benchmark, the centerlines of any one pair of end face teeth are marked out, benchmark groove marks are made on crests, and the position line of each hole is marked out; each hole is drilled through a drilling machine; the inner hole and the two end faces are turned to preset sizes through the lathe in a finish machining mode; positioning is conducted according to a datum plane, and correction gear grinding is conducted on the crest circles; each hole in a gear ring is expanded, drilled and reamed. The special machining method has the advantages of saving materials, reducing cost and improving product mechanical properties.

Description

technical field [0001] The invention relates to a processing method of gears, in particular to a special processing method of large modulus gears of heavy windlasses. Background technique [0002] The field of marine engineering is the key field of my country's 12th Five-Year Plan. It mainly includes large ships such as offshore drilling platforms, large offshore floating cranes, marine pipe laying engineering ships, and wind power installation ships; these marine engineering ships will use large open gears. , as one of the typical forms of gear transmission, large open gears are widely used in various types of cranes, anchor winches and other typical equipment of marine engineering ships; due to the particularity of marine engineering, the manufacturing requirements of its split gears are relatively high ; Generally, this kind of gear adopts free forging process, which not only increases the forging cost, but also easily deforms during processing. Whether it is heat treatment...

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Problems solved by technology

[0002] The field of marine engineering is the key field of my country's 12th Five-Year Plan. It mainly includes large ships such as offshore drilling platforms, large offshore floating cranes, marine pipe laying engineering ships, and wind power installation ships; these marine engineering ships will use large open gears. , as one of the typical forms of gear transmission, large open gears are widely used in various types of cranes, anchor winches and other typical equipment of marine engineering ships; due to the particularity of marine engineering, the manufacturing requirements of its split gears are relatively high ; Generally, this kind of gear adopts free forging process, which not only increases the forging cost, but also easily deforms during processing. Whether it is heat treatment deformation or deformation during machining, it is inevitable and difficult to control. This not only reduces The production efficiency is reduced, and the processing quality cannot be guaranteed

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