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Method for processing rectangular-tooth spline sleeve using 42CrMoE high-quality alloy steel as material

A spline sleeve, rectangular tooth technology, applied in the field of heat treatment, can solve the problems of poor lubrication of the spline sleeve, weakened shaft and shaft strength, shortened service life, etc., to overcome the crack phenomenon, the shaft strength is weakened, and the service life is prolonged.

Inactive Publication Date: 2012-07-04
无锡市万邦机械制造厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method is to extend the spline end of the spline shaft into the spline sleeve, the two are meshed, and then fixed by welding, because the welding connection method completely fixes the spline shaft and the spline sleeve, so when the spline shaft and the spline sleeve are required It is not suitable for occasions where the key shaft has a certain amount of axial movement, otherwise it will have adverse effects due to vibration during the transmission process, and it is easy to break from the welding due to vibration, shortening its service life
In addition, welding connections are not applicable in some specific occasions
For example, when the spline shaft and spline sleeve are made of special materials such as stainless steel, they cannot be welded due to material factors; in the field of industrial production, some machines use involute splines, and the spline shafts are used as transmission parts. It has the advantages of large area, high bearing capacity, good centering, good guiding, shallow tooth root, small stress concentration, and small strength weakening of the shaft and hub, but the spline sleeve has poor lubrication and large friction; there is also a It is a triangular spline sleeve, but there are gaps, looseness, and abnormal noise at the joint with the spline shaft

Method used

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Experimental program
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Effect test

Embodiment 1

[0018] A method for processing a rectangular tooth spline sleeve, the material used is 42CrMoE high-quality alloy steel, mainly including the percentage content of the following elements: Ti 0.35%, C 0.52%, Mn 1.23%, Si 3.24%, Ni0.01%, P <0.03, S<0.03, the processing technology adopted, the key technology is as follows:

[0019] Forging blank: use steam-air hammer and hydraulic press for free forging, keep the original height and diameter ratio of the blank less than 2 during the upsetting and elongating process, and avoid upsetting and bending; carry out normalizing treatment, heat to 850°C in a high-temperature furnace, and keep warm 4h; Carry out rough machining of the spline sleeve with a machining allowance of 2 mm; carry out quenching and tempering treatment, spray burning oxyacetylene onto the surface of the workpiece, spray water to cool immediately after reaching the hardening temperature, and temper the temperature at 500°C. Quenching and tempering hardness 28HRC; mi...

Embodiment 2

[0021] A method for processing a rectangular tooth spline sleeve, the material used is 42CrMoE high-quality alloy steel, mainly including the percentage content of the following elements: Ti 0.42%, C 0.87%, Mn 1.82%, Si 5.25%, Ni0.03%, P <0.03, S<0.03. The processing technology adopted, the key technology is as follows:

[0022] Forging blank: use steam-air hammer and hydraulic press for free forging, keep the original height and diameter ratio of the blank less than 2 during the upsetting and elongating process, and avoid upsetting and bending; carry out normalizing treatment, heat to 900°C in a high-temperature furnace, and keep warm 6h; Carry out rough machining of the spline sleeve with a machining allowance of 2 mm; perform quenching and tempering treatment, spray burning oxyacetylene onto the surface of the workpiece, spray water to cool it immediately after reaching the hardening temperature, and temper the temperature at 600°C. Quenching and tempering hardness 32HRC; ...

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Abstract

The invention discloses a method for processing a rectangular-tooth spline sleeve using 42CrMoE high-quality alloy steel as a material, belonging to the technical field of thermal treatment. The method comprises the steps of: free forging of a blank, normalizing treatment, rough turning, hardening and tempering thermal treatment, finish turning, spline drawing, drilling, burr gripping, carburization treatment, surface deposition treatment, phosphorylation treatment, electroplating, drying and detection. In the invention, due to the new material and new technology, the wear resistance of the produced rectangular-tooth spline sleeve is greatly enhanced, the phenomenon of crack of the rectangular-tooth spline sleeve is avoided, the surface is smooth, the friction is low, the heat dissipation is good, and the service life is prolonged, thus the processing technology is widely applied.

Description

technical field [0001] The present invention belongs to the technical field of heat treatment, and relates to a spline sleeve and alloy steel thereof. In particular, a method for processing a rectangular-toothed spline sleeve made of 42CrMoE high-quality alloy steel. Background technique [0002] The axial fixation of the spline shaft and the spline sleeve is often encountered when the parts are working. The traditional method is to extend the spline end of the spline shaft into the spline sleeve, the two are meshed, and then fixed by welding, because the welding connection method completely fixes the spline shaft and the spline sleeve, so when the spline shaft and the spline sleeve are required It is not suitable for occasions where the key shaft has a certain amount of axial movement, otherwise it will have adverse effects due to vibration during the transmission process, and it is easy to break from the welding due to vibration, shortening its service life. In addition,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/14B23P15/00F16D1/06
Inventor 胡春涛
Owner 无锡市万邦机械制造厂
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