Method for manufacturing bevel gear of axle gear box for diesel locomotives

Abstract

The invention discloses a method for manufacturing a bevel gear of an axle gear box for diesel locomotives, which comprises the steps of blank forging, blank heat-treatment, gear-blank processing, gear-shape processing, gear-end processing, gear-surface heat-treatment, precise reference modification and gear-shape finish-machining, wherein the step of blank heat-treatment comprises the sub-steps of normalizing and thermal refining; the step of gear-blank processing comprises the sub-steps of rough turning and finish turning; the step of gear-shape processing comprises the sub-steps of gear milling, gear hobbing or gear shaping; the step of gear-surface heat-treatment comprises the sub-steps of nitriding, surface quenching and tempering; the step of precise reference modification comprises the sub-steps of end face modification and centre hole modification; and the step of gear-shape finish-machining comprises the sub-steps of gear grinding and polishing. By using the method disclosed by the invention, the production efficiency of the bevel gear can be improved, and the consumption amount and production cost of raw materials can be reduced; and meanwhile, the method is simple in process, and the manufactured bevel gear is long in service life.

Description

Manufacturing method of bevel gear for axle gearbox of diesel locomotive technical field The invention relates to a manufacturing method of a bevel gear, in particular to a manufacturing method of a bevel gear of an axle gearbox of an internal combustion locomotive. Background technique A hydraulic transmission type diesel locomotive, the locomotive has a construction speed of 30km / h, a minimum curve radius of 80m, and a curb weight of 80 tons. The locomotive is equipped with a CATC32 diesel engine, and the main transmission device is a hydraulic torque converter box , using advanced hydraulic reversing, electronic automatic shifting, PLC and other technologies, it has the advantages of large starting traction, strong braking force, small passing curve radius, and rapid reversing. It is suitable for various industrial and mining enterprises as well as places, forests, and ports. , Railway shunting and small running operations, especially suitable for sightseeing vehicles. ...

AI Technical Summary

Problems solved by technology

However, the bevel gear has the weakness of short service life, which restricts the safe operation of the locomotive as a whole and needs to be improved