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The Method of Outsourcing Stainless Steel Sleeve for Large Diameter Cylinder

A stainless steel sleeve and large diameter technology, which is applied in the field of surface repair equipment for hydraulic support columns used in coal mines, can solve the problems of scrapped steel sleeves and easy failures, and achieve the effects of not easy peeling, long life and convenient construction

Inactive Publication Date: 2017-06-20
BEIJING LANGDE COAL MINE MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is: because the stainless steel sleeve is thin and deformed after heating, it is very easy to fail during the red installation process, resulting in the scrapping of the steel sleeve

Method used

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  • The Method of Outsourcing Stainless Steel Sleeve for Large Diameter Cylinder

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Experimental program
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Embodiment Construction

[0015] The embodiments of the present invention will be further described in detail below.

[0016] The method for the large-diameter cylinder body outsourcing stainless steel cover of the present invention, its preferred embodiment is as follows figure 1 Shown:

[0017] Include steps:

[0018] First, the outer wall of the large-diameter cylinder is turned, and a stainless steel sleeve is made according to the size of the outer wall of the large-diameter cylinder, and a triangular thread is processed on the outer wall of the large-diameter cylinder;

[0019] Then, at normal temperature, the stainless steel is placed outside the large-diameter cylinder body;

[0020] Afterwards, the stainless steel sleeve is rolled while being heated.

[0021] The heating temperature of the stainless steel sleeve is above 723°.

[0022] The wall thickness of the stainless steel sleeve is 1 mm to 2 mm, and the inner wall of the stainless steel sleeve is in clearance fit with the outer wall o...

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Abstract

The invention discloses a method for using a stainless steel sleeve to coat a large-diameter cylinder body. The method for using the stainless steel sleeve to coat the large-diameter cylinder body includes that lathing the outer wall of the large-diameter cylinder body, and manufacturing the stainless steel sleeve in a clearance fit mode according to the size of the outer wall of the large-diameter cylinder body; processing triangular threads in the outer wall of the large-diameter cylinder body, and arranging the stainless steel sleeve at the outside of the large-diameter cylinder body under a normal temperature; rolling the stainless steel sleeve while heating. The method for using the stainless steel sleeve to coat the large-diameter cylinder body is convenient to construct and high in reliability, the restored upright surface is difficult to peel, and the life span is long.

Description

technical field [0001] The invention relates to a surface repairing device for a hydraulic support column (cylinder body or piston rod) used in coal mines, in particular to a method for wrapping a large-diameter cylinder body with a stainless steel sleeve. Background technique [0002] After the coal mine hydraulic support column is used for a period of time, the outer surface will have defects such as scratches and wear, and the surface needs to be repaired. [0003] The repair methods in the prior art, one is to iron-plate and chrome-plate the outer surface of the column after turning, and the outer wall repaired by this method is easy to peel during use; The outer surface is clad and processed by lathe. This method has a large workload and high cost; there is also a method of wrapping the outer wall with thin stainless steel, but the outer wall of the column repaired by the method in the prior art is also easy to peel. Short service life. [0004] In the prior art, ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P6/00
CPCB23P6/00
Inventor 张超林依男贺琦范超霍福利王朝波刘义川周建波赵海英李凌云林少凤
Owner BEIJING LANGDE COAL MINE MACHINERY