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Manufacturing method of transmission sleeve with two involute tooth-shaped internal splines

A manufacturing method and an internal spline technology are applied in the field of manufacturing a transmission sleeve with two-stage involute tooth-shaped internal splines, and can solve the problems of low service life of the transmission sleeve, low material utilization rate, low production efficiency, and the like, Achieve the effect of ensuring long life, improving bearing capacity, and improving dimensional accuracy

Inactive Publication Date: 2020-09-11
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the above problems, the object of the present invention is to adopt the manufacturing method of cold extrusion forming + a small amount of cutting processing to produce the transmission sleeve, so as to solve the problems of low material utilization rate, low production efficiency, high production cost and high production cost of the transmission sleeve in the conventional manufacturing of the transmission sleeve. Problems such as low service life

Method used

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  • Manufacturing method of transmission sleeve with two involute tooth-shaped internal splines
  • Manufacturing method of transmission sleeve with two involute tooth-shaped internal splines
  • Manufacturing method of transmission sleeve with two involute tooth-shaped internal splines

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Embodiment Construction

[0032] The following is further described in detail through specific implementation methods:

[0033] The embodiment is basically as attached figure 1 And attached figure 2 Shown: a method for manufacturing a transmission sleeve with two-stage involute tooth-shaped internal splines, mainly including: blank blanking, cold extrusion of inner holes, turning processing and cold extrusion of involute tooth-shaped internal splines.

[0034] When cutting the billet, the operator cuts the hot-rolled round steel bar with a diameter of φ40mm on a band sawing machine to obtain a billet with a diameter of 40mm, a height of 50mm, and a surface roughness of Ra6.3μm.

[0035] In the cold extrusion of the inner hole, the cold extrusion of the large hole is carried out first, and the operator performs softening and annealing treatment on the billet in the annealing furnace. After annealing, the annealed billet is shot blasted in the shot blasting machine, and then the prepared A good phosph...

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Abstract

The invention relates to the technical field of processing of transmission sleeves in gear transmission systems and discloses a manufacturing method of a transmission sleeve with two involute tooth-shaped internal splines. The manufacturing method mainly comprises the following steps of sawing; cold-extruding of a large hole; cold-extruding of a small step hole; first time rough turning; cold-extruding of a large tooth-shaped internal spline; second time rough turning; cold-extruding of a small tooth-shaped internal spline; numerically controlled finish turning; and cylindrical grinding. The manufacturing method specifically comprises the following steps of carrying out sawing, softening treatment and surface lubricating treatment on a hot rolled round steel bar; carrying out cold-extruding of the large hole, cold-extruding of the small step hole, cold-extruding of the large internal spline and cold-extruding of the small internal spline in a cold-extruding die on a hydraulic press; and then carrying out follow-up finish turning, thermal treatment and grinding to obtain a qualified transmission sleeve part. Compared with a conventional manufacturing method of turning+gear shaping processing+gear broaching, the manufacturing method of the transmission sleeve manufactures a tooth-shaped blank of the transmission sleeve by adopting a cold-extruding forming method and has the advantages of being high in utilization ratio of materials, high in production efficiency, low in manufacturing cost and the like.

Description

technical field [0001] The invention belongs to the technical field of processing a transmission sleeve in a gear transmission system, in particular to a method for manufacturing a transmission sleeve with two-stage involute tooth-shaped internal splines. Background technique [0002] The transmission sleeve is one of the key parts in the gear transmission system. It is a short cylindrical coupling with two involute tooth-shaped internal splines, which is used to transfer the power in the gear transmission system in parallel to a The toothed spline shaft is transmitted to another toothed spline shaft, which can transmit large torque. In order to ensure the stability, safety, reliability, long life and low noise of the gear transmission system, avoid the toothed splines in the transmission sleeve or the toothed spline shaft caused by the poor fit of the involute toothed splines. Breakage, abnormal noise, and at the same time avoid problems such as poor stability of the gear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 伍太宾
Owner CHONGQING UNIV OF ARTS & SCI
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