Permanent traverse point for coal mine underground and installing method

Abstract

Disclosed is a permanent traverse point for coal mine underground. The permanent traverse point for coal mine underground consists of two parts of an anchoring connecting device (1) and a copper threading device (2). The anchoring connecting device (1) is divided into a threaded area (1-1) and a plain round area (1-2). In the plain round area (1-2), an inserting connecting section (1-3) is arranged at the end of the plain round area (1-2) of the anchoring connecting device (1), wherein the diameter of the inserting connecting section is less than the diameter of the plain round area (1-2). A inserting connecting blind hole which is matched with the inserting connecting section (1-3) is formed in the copper threading device (2). The anchoring connecting device (1) is connected with the copper threading device (2) in a hot charging mode. The permanent traverse point for coal mine underground is characterized in that a hexagonus anchoring connecting device (3) is arranged on the plain round area (1-2) of the anchoring connecting device (1), and the length of distance from the hexagonus anchoring connecting device (3) to one end of a threading wire does not exceed the maximum use depth of a grouting anchoring device. Compared with the prior art, according to the permanent traverse point for coal mine underground, technology is simplified, time is shortened, the bonding strength of the traverse point and a rock formation is improved, using of copper materials is reduced, and the cost is saved.

Description

technical field [0001] The invention relates to a permanent conductor point used in underground coal mines and an installation method thereof. Background technique [0002] Due to the requirements of the service life and accuracy of the permanent wire points in underground coal mines, the anchorage between the permanent wire points and the roof of the roadway must be firm and reliable. The traditional installation method is to use mortar to anchor in the roof of the roadway after drilling holes in the roof. The process is complex and requires manual operation. The solidification time is long, the anchoring force is not strong, and the cost is high. The above methods are difficult to guarantee the anchoring effect. Therefore, it is a technical problem to be solved to design a permanent wire point and installation method for underground coal mines with simple construction technology and strong anchoring force. . Contents of the invention [0003] The technical problem to be...

AI Technical Summary

Problems solved by technology

[0002] Due to the requirements of the service life and accuracy of the permanent wire points in underground coal mines, the anchorage between the permanent wire points and the roof of the roadway must be firm and reliable. The traditional installation method is to use mortar to anchor in the roof of the roadway after drilling holes in the roof. The process is complex and requires manual operation. The solidification time is long, the anchoring force is not strong, and the cost is high. The above methods are difficult to guarantee the anchoring effect. Therefore, it is a technical problem to be solved to design a permanent wire point and installation method for underground coal mines with simple construction technology and strong anchoring force.

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