Light rail output bevel wheel machining process

A processing technology and helical gear technology, which is applied in the field of light rail output helical gear processing technology, can solve the problems of high design speed, unsatisfactory grinding processing requirements, and large output torque of power system, and achieve the effect of improving quality

Active Publication Date: 2012-09-19
重庆方禾机电设备有限公司
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  • Abstract
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AI Technical Summary

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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  • Light rail output bevel wheel machining process
  • Light rail output bevel wheel machining process

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Embodiment Construction

[0029] figure 1 It is a schematic diagram of the structure of the light rail output helical gear. The processing technology of the light rail output helical gear in this embodiment includes blank making, normalizing, semi-finishing, quenching, finishing and final inspection. The blank making includes blank production and tooth blank rough machining ; The semi-finishing process includes semi-finishing I, semi-finishing II and gear forming; the finishing process includes semi-finishing III, semi-finishing IV, finishing I, finishing II and gear grinding;

[0030] Specifically include the following steps:

[0031] a. Blank making:

[0032] a1. Blank production, the blank is processed by forging or casting;

[0033] a2. Rough machining of gear blanks, turning the outer circle, end face, web surface and inner hole 1, leaving 3-5mm machining allowance, and the overall surface roughness reaches Ra6.3;

[0034] b. Normalizing: heat the tooth blank at a temperature between 920 and 95...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14
Inventor 何沛均
Owner 重庆方禾机电设备有限公司
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