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Processing technology for improving winch guide rope wheel split type shaft sleeve whole circle zero clearance

A processing technology and a technology of a rope guide wheel, which is applied in the field of hoisting winch guide wheel split type shaft sleeve full circle zero clearance processing technology, to achieve the effect of flexible operation, reasonable steps, and uniform assembly clearance

Active Publication Date: 2013-08-21
YANKUANG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary shaft sleeve processing technology has matured, but there are still no examples of successful implementation of the split shaft sleeve full-circle zero-gap processing technology in China.

Method used

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  • Processing technology for improving winch guide rope wheel split type shaft sleeve whole circle zero clearance
  • Processing technology for improving winch guide rope wheel split type shaft sleeve whole circle zero clearance

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Effect test

Embodiment

[0029] In order to improve the machining accuracy of the inner hole, the wheel groove and the outer circle of the split shaft sleeve, the invention designs the zero-clearance processing technology and tooling of the split shaft sleeve, which ensures the uniform assembly clearance between the split shaft sleeve and the shaft diameter requirements.

[0030] The process route and method designed and formulated are as follows:

[0031] (1) Rough machining is carried out on the shaft sleeve blank first, and a finishing allowance of 3 mm is reserved for each side of the inner hole, wheel groove and each end face;

[0032] (2) Divide the rough-machined bushing in half by wire cutting, and carry out group identification on the split bushing;

[0033] (3) Carry out milling finishing on the split surface of the shaft sleeve to ensure that the split surface is in the same plane (processing amount is 0.3mm);

[0034] (4) According to the group identification of the bushing, assemble it ...

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PUM

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Abstract

The invention relates to the technical field of shaft sleeve processing and particularly discloses a processing technology for improving winch guide rope wheel split type shaft sleeve whole circle zero clearance. The technology is a dedicated processing technology designed through an A Yong special technology and tools according to a structure of a shaft sleeve to be processed. The technology is mainly characterized by enabling clearance between back split faces after two half shaft sleeves are assembled on the condition that processing precision of an inner circle and a wheel groove of the section type shaft sleeve is ensured. The technology is reasonable in procedure and flexible in operation, effectively improves processing precision of an inner hole, a wheel groove, and the outer edge of the split type shaft sleeve, ensures requirements for evenness of the assembling clearance between the shaft sleeve and the shaft diameter, and is applied to wide popularization and application.

Description

(1) Technical field [0001] The invention relates to the technical field of shaft sleeve processing, in particular to a hoisting winch guide wheel split type shaft sleeve full-circle zero-gap processing technology. (2) Background technology [0002] At present, split bushings are widely used in large-scale hoisting winch guide pulleys of coal mine main shafts with low speed, high impact force and poor sealing performance. It is divided into two symmetrical halves by the center line of the mirror image. It is generally used for shaft diameters that cannot be directly fitted. The biggest advantage of the split shaft sleeve is that it can be easily installed and disassembled, which can save a lot of time and reduce production costs. [0003] When the split bushing is installed, the gap between the hub and the shaft diameter is very strict. If there is a gap of 0.2mm or more after the two half bushings are assembled, the contact surface between the bushing and the shaft diame...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
Inventor 黄显华汪建雄赵玉峰郝静曹杰
Owner YANKUANG GRP CO LTD
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