Hydraulic support cap

A technology of hydraulic supports and column caps, which is applied in the direction of mine roof supports, pillars/supports, mining equipment, etc., can solve the problems of low strength, poor safety and reliability, and easy damage, and achieve increased strength, safety and use The effect of prolonging the life and satisfying the conditions of use

Inactive Publication Date: 2008-06-11
四川航天神坤装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low strength, easy damage, poor safety and reliability existing in the existing hydraulic support column cap, and provide a high strength, long service life, higher safety and reliability, manufacturing Hydraulic support column cap with simple process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Such as figure 1 , figure 2 , image 3 As shown, the hydraulic support column cap includes a column cap body 4 integrally forged from alloy structural steel with a yield point of 800 MPa, and an ear plate 1, an ear plate 2, 3, and a side plate 1 welded to it, respectively. 2. Ear plate 2 3 and side plate 1 are respectively processed from alloy steel plates with a yield point of 500MPa.

[0019] The present embodiment adopting the above-mentioned structure improves the manufacturing efficiency, increases the strength and the service life, thereby has a high safety factor and is easy to popularize.

Embodiment 2

[0020] Example 2: The basic structure is the same as that of Example 1. The yield point value of the alloy structural steel used in the column cap body 4 is 810MPa, and the yield point value of the alloy steel plate used in the ear plate 1, the ear plate 2 3 and the side plate 1 530MPa.

Embodiment 3

[0021] Example 3: The basic structure is the same as that of Example 1. The yield point value of the alloy structural steel used in the column cap body 4 is 830 MPa, and the yield point value of the alloy steel plate used in the ear plate 1, the ear plate 2 3 and the side plate 1 is 550MPa.

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PUM

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Abstract

The invention discloses a hydraulic support stud cap, which belongs to a major stressed component on a hydraulic support for mechanical coal mining and resolves the problems of insufficient strength, easy breaking and insufficient safety and reliability performance of the existing hydraulic support stud cap. The invention comprises a side plate, a stud cap body, an ear plate 1 and a ear plate 2 positioned on the stud cap body; a ball cave is positioned at the middle section of the stud cap body; the stud cap body is an integral component forged by high-intensity alloy structure steel; the ear plate 1, ear plate 2 and the side plate are respectively welded together with the stud cap body; the reinforcement section at the peripheral of the ball cave is configured with inclined surface. Therefore, with the advantages of compact structure and greater strength, the invention, which is able to promote the production efficiency, enhance the safety performance, prolong the service life and better satisfy the usage requirement for hydraulic support, can be applied to a plurality of hydraulic support.

Description

Technical field [0001] The invention belongs to the main force-bearing component of a hydraulic support for mechanical coal mining, and particularly relates to a column cap of a hydraulic support. Background technique [0002] The column cap of the hydraulic support is located at the mid-space between the two inner and outer main reinforcements of the top beam of the hydraulic support. It is placed on the top plate of the top beam and is connected to the two column heads of the hydraulic support through the pin and pressure block. The coal mining height of the hydraulic support can be changed. The top beam of the hydraulic support not only bears the pressure of the roof of the mining area, but also bears horizontal friction and lateral force. The force is more complicated and severe, and it is easily damaged. Therefore, the column cap of the hydraulic support is an important component of the hydraulic support. At present, the column caps of hydraulic supports are usually made by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D15/54E21D23/04
Inventor 庞季洪朱安民刘水章林强高闱
Owner 四川航天神坤装备有限公司
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