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Mechanical constant-resistance single prop installation method and erection method

A technology of single pillar and installation method, which is applied in the direction of pillar/bracket, mining equipment, earthwork drilling and mining, etc., can solve the problems of lower production efficiency, complex on-site installation and support, etc., and achieve convenient operation, wide practicability and reference Significance, manpower saving effect

Inactive Publication Date: 2017-03-15
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, during the installation and support of the mechanical high constant resistance single pillar, due to the irregular use of the device, the on-site installation and support are complicated and the production efficiency is greatly reduced.

Method used

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  • Mechanical constant-resistance single prop installation method and erection method
  • Mechanical constant-resistance single prop installation method and erection method

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Experimental program
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Effect test

Embodiment 1

[0033] This embodiment provides a method for installing a mechanical constant resistance single pillar, such as figure 1 , 2 As shown, taking the 8216 retreat working face of a certain mine as an example, the inclination length is 230m, the thickness of the coal seam is 5.55-24.20m, and the roadway height is 3.5m. The specific implementation steps are as follows:

[0034] Step 1: First, lay the rod body 3 and the cylinder body 5 of the mechanical constant-resistance single prop 1 horizontally, connect the rod body 3 to the cylinder body 5, and adjust the rod body 5 and the The socket length of the cylinder body 3, in this embodiment, the height of the mechanical constant resistance single pillar 1 after the rod body 5 is socketed with the cylinder body 3 is adjusted to 3.4m;

[0035] Step 2: The upper end of the cylinder body 3 is provided with a cylinder body cone surface 10, the cylinder body cone surface 10 is an inverted conical surface, the steel ball sleeve 6 is inserte...

Embodiment 2

[0040] This embodiment provides a method for supporting a mechanical constant-resistance single prop, such as figure 1 , 2 As shown, taking the 8216 retreat working face of a certain mine as an example, the inclination length is 230m, the thickness of the coal seam is 5.55-24.20m, and the roadway height is 3.5m. The specific implementation steps are as follows:

[0041] Step 1: Install the mechanical constant resistance single pillar 1 according to the installation method of the mechanical constant resistance single pillar in Embodiment 1, and place it at the position where the mechanical high constant resistance single pillar 1 needs to be supported;

[0042] Step 2: Hold the mechanical high constant resistance single pillar 1 installed in step 1, install the column lifter, install the two ends of the column lifter on the rod body 5 and the cylinder body 3 respectively, and press the oil cylinder of the column lifter through the pressure device Pressurize, so that the oil cy...

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Abstract

The invention discloses a mechanical constant-resistance single prop installation method. The method comprises the steps that 1, according to the actual cross section height of a cut hole or a roadway in a mine, a rod body is connected to a cylinder body in a sleeved mode, and the sleeving connection length is adjusted; 2, a steel ball sleeve is sleeved between the rod body and the cylinder body, so that the rod body presses the steel ball sleeve to form self locking; 3, a limiting cover is fixedly connected to the sleeved connecting position of the rod body and the cylinder body; 4, a top tray is installed and locked at the upper end of the rod body; 5, parts, assembled in the step 4, of a mechanical constant-resistance single prop are vertically erected and installed on a base. The invention further discloses a mechanical constant-resistance single prop supporting method. The supporting method comprises the steps that 1, the mechanical constant-resistance single prop is installed by adopting the mechanical constant-resistance single prop installation method; 2, the rod body is driven to move with respect to the cylinder body through a prop lifter till the top tray is connected with a top plate of the cut hole or the roadway in the mine; 3, the prop lifter is dismounted. The mechanical constant-resistance single prop is simple, rapid and efficient to install, and manpower and material resources are saved.

Description

technical field [0001] The invention relates to the technical field of roadway support application in coal mines and metal mines, in particular to a method for installing and supporting a mechanical constant-resistance single pillar. Background technique [0002] Underground coal mines in my country, the method of double-row wooden piles and single pillars is generally adopted to advance support or reinforcement of the mining roadway, and the wooden piles and single pillars are moved forward in sequence along with the mining of the working face. For the wooden pile support, the outstanding problems can be summarized as follows: low initial installation efficiency, serious waste of support materials, high labor intensity of workers, and poor stability of the roof in the advance support area of ​​the roadway during mining. Therefore, a mechanical high-constant-resistance single prop was developed, which is safer and more economical, has high construction efficiency, and has a ...

Claims

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Application Information

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IPC IPC(8): E21D15/582
CPCE21D15/58
Inventor 陈彦龙张吉雄张强吴宇乔明崔灿刘华萍
Owner CHINA UNIV OF MINING & TECH