Light rail output bevel wheel machining process

Abstract

The invention discloses a light rail output bevel wheel machining process which comprises blank making, normalizing, semifinishing, quenching, finish machining and final inspection. The finish machining process comprises a semi-finish turning I, a semi-finish turning II, a finish turning I, a finish turning II, a grinding gear excircle and a grinding gear. By means of the light rail output bevel wheel machining process, semifinishing and finish machining are carried out twice on an end face after quenching treatment is carried out on a teeth blank, when the teeth blank is clamped on a lathe, alignment is carried out according to pitch circle runout, grinding of the end face is replaced by turning, quality of machined gears is improved, and requirements for light rail high power output are met.

Description

technical field [0001] The invention relates to a gear processing technology, in particular to a light rail output helical gear processing technology. Background technique [0002] The light rail output gear is an important part used to transmit the output power of the light rail power system to the transmission system and then to the driving wheels to make the car body run. It is generally set as a helical gear, which has good meshing, stable transmission, low noise, large coincidence and bearing capacity. Strong and other advantages, but light rail is different from ordinary rail trains, usually with a higher design speed, a larger output torque of the power system, and a higher speed of the output gear, so the quality requirements for the output gear are also higher. Generally, the end face and inner hole are required. The verticality reaches 0.015, the circular runout reaches 0.025, and the end surface roughness reaches 1.6, which cannot be met by the usual grinding proc...

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Problems solved by technology

[0002] The light rail output gear is an important part used to transmit the output power of the light rail power system to the transmission system and then to the driving wheels to make the car body run. It is generally set as a helical gear, which has good meshing, stable transmission, low noise, large coincidence and bearing capacity. Strong and other advantages, but light rail is different from ordinary rail trains, usually with a higher design speed, a larger output torque of the power system, and a higher speed of the output gear, so the quality requirements for the output gear are also higher. Generally, the end face and inner hole are required. The verticality reaches 0.015, the circular runout reaches 0.025, and the end surface roughness reaches 1.6. The usual grinding process cannot meet the requirements.

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