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Manufacturing method for cross axle of universal coupling

A universal coupling and cross shaft technology, applied in the field of transmission shafting, can solve the problems of coupling jamming, short service life, small axis bending angle, etc. Effect

Inactive Publication Date: 2008-02-27
邹树林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the performance, the method of increasing the rotation diameter of the coupling is used to increase the working torque of the coupling. The disadvantages are: 1. The axis bending angle is small, and the coupling is prone to jamming during operation, and the operation is not stable. , unstable performance, short service life
2. Large volume, unfavorable concentricity, waste of materials

Method used

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Embodiment Construction

[0013] specific implementation

[0014] Embodiments of the present invention are as follows:

[0015] The cross shaft of the universal joint is made of high-quality low-carbon alloy structural steel - 20CrMnTi, which is made by blanking, precision die forging, normalizing, machining, surface carburizing, surface quenching, low temperature tempering, and fine grinding. Mechanical properties; said normalizing, surface carburizing, surface quenching, and low temperature tempering process conditions are:

[0016] Normalizing: heating the steel to the critical temperature Ac 3 Above 50°C, keep warm for 8 hours, then cool with air;

[0017] Surface carburizing: the hardened surface contains 1% carbon, and the depth of carburizing layer is 0.9mm;

[0018] Surface hardening: medium frequency induction heating, frequency range: 8 kHz, hardened layer depth 6mm.

[0019] Low temperature tempering: Tempering temperature is 200℃, surface hardness is HRC60 and core hardne...

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Abstract

The centerpiece for universal coupling is made with high quality low carbon alloy structural steel 20CrMnTi, and through blanking, precise die forging, normalizing, machining, surface carburizing, surface hardening, low temperature tempering and finish grinding. It his excellent mechanical performance, including high toughness, high strength and high wear resistance, and can ensure smooth running, high safety, high reliability and long service life of the coupling.

Description

technical field [0001] The invention relates to a cross-shaft universal coupling, which is mainly suitable for rolling steel machinery, hoisting and transporting machinery and other heavy machinery, and connects two transmission shaft systems with different axes. Background technique [0002] The traditional T260 integral yoke type cross shaft universal coupling, including connecting flange, universal cross shaft, shaft fork, shaft head, the universal cross shaft of the coupling is made of ordinary low carbon alloy structural steel< 40Cr, 40CrNi, 20CrMo, 20MnVB> <jb5513-91>, and its carrying capacity is low. When the universal coupling is running at low speed, it has to bear a strong impact load and withstand a large torque. In order to ensure the performance, the method of increasing the rotation diameter <volume> of the coupling is used to increase the working torque of the coupling. The disadvantages are: 1. The axis angle is small, and the coupling is...

Claims

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Application Information

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IPC IPC(8): F16D3/16C21D1/28C21D1/06C23C8/20
Inventor 邹树林
Owner 邹树林
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