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Coal cutter hollow shaft machining method and grinding centre used for grinding hollow shaft

A processing method and hollow shaft technology, applied in the direction of grinding workpiece supports, etc., can solve the problems of low efficiency of hollow shaft grinding process, hollow shaft cannot meet production needs, etc., and achieve ideal results

Active Publication Date: 2018-10-12
NINGXIA NORTHWEST HORSE ELECTRIC MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the increasing demand of the coal market, the market demand for hollow shaft motors in coal shearers has also increased. In order to meet the needs of the market and production, the processing volume of hollow shafts in coal shearers It is also getting bigger and bigger, and the existing technology for processing hollow shafts is far from meeting the production needs, especially the efficiency of the grinding process of hollow shafts is very low. Therefore, improving the grinding efficiency of hollow shafts has become a major research topic

Method used

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  • Coal cutter hollow shaft machining method and grinding centre used for grinding hollow shaft

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Embodiment Construction

[0026] A method for processing a hollow shaft of a shearer includes the following processing steps:

[0027] Step 1: Receive the initial bar material of the hollow shaft of the shearer, then machine the bar material into a spline small-diameter through hole, and punch it into a semi-finished product with a center hole;

[0028] Step 2. Position and clamp the two ends of the semi-finished product with the center hole with the center hole. First, the full-length knife checks that the curvature is not more than 3, and the right end of the rough car; for another, the two ends are positioned and clamped with the center hole. Locate and clamp with the center hole, first check with the full length knife that the curvature is not greater than 3, and the right end of the rough car Average to ￠105 roughness is 3.2; ￠105, Even to ￠130, the flat end surface allowance is 2, the end car length is 10, the taper is 30° conical surface; replace the two flat ends with the center hole for pos...

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Abstract

The invention relates to a coal cutter hollow shaft machining method. The coal cutter hollow shaft machining method comprises the following machining steps that a coal cutter hollow shaft initial baris got to be machined into a spline small-diameter through hole, and a centre hole semi-finished product is machined; the left and right ends are subject to rough turning; taper faces are subject turning trimming; u-turning is carried out, one end is clamped by a chuck, the other end is fixed through a center support of a lathe, a center hole in the other end is formed through turning, and the taper face is formed through trimming; the left and right ends are subject to semi-finish turning; one end is clamped by the chuck, the other end is ejected by the center support, spline small diameter is formed through drilling, and spline end face angles are chamfered; a mandrel is installed, an iron core stopping part is subject to finish turning, and the left and right end are subject to finish turning; seventhly, the installed mandrel is hit to be tight, the right end and the left end are subject to finish turning, a hollow shaft of the inner taper face is matched with the grinding centre tobe installed on a grinding machine, and the hollow shaft is subject to grinding treatment. The invention further provides a grinding centre used for grinding the hollow shaft. By means of the methodand the grinding centre, coal cutter hollow shaft grinding operation can be conveniently and accurately carried out.

Description

Technical field: [0001] The invention relates to the technical field of motor manufacturing technology, in particular to a method for processing a hollow shaft of a coal shearer and a grinding tip used for grinding the hollow shaft. Background technique: [0002] In recent years, with the increasing demand of the coal market, the market demand for hollow shaft motors in coal shearers has also increased. In order to meet the needs of the market and production, the processing volume of hollow shafts in coal shearers It is also getting bigger and bigger, and the prior art process for processing hollow shafts is far from meeting the production needs, especially the efficiency of the grinding process of hollow shafts is very low. Therefore, improving the grinding efficiency of hollow shafts has become a major research topic. Invention content: [0003] In view of this, it is necessary to provide a method for processing the hollow shaft of a shearer. [0004] A method for proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B24B41/06
CPCB23P15/00B24B41/062
Inventor 周波张亮
Owner NINGXIA NORTHWEST HORSE ELECTRIC MFG
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