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Integral top beam

A roof beam and integral technology, which is applied to roof beams supporting mine roofs, mining equipment, earth-moving drilling, etc., can solve the problems of strict geological conditions, high price, and inconvenient underground transportation.

Inactive Publication Date: 2009-07-08
李泽宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The top beam of the fully-mechanized mining support will also encounter huge torque when it encounters an uneven roof. Resist huge bending moment and torque, but this makes the support of fully mechanized mining weigh more than ten tons, or even dozens of tons, which is expensive, has strict requirements on geological conditions, and is inconvenient to transport underground, so the popularization and application are limited

Method used

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Embodiment approach

[0023] combine figure 2 , the second embodiment of an integral top beam of the present invention includes a main top beam 1 , a filling part 2 , a link hinge structure 6 connecting the main top beam 1 and the filling part 2 and a flexible piece 4 . In this embodiment, the two sides of the rectangle are changed from vertical straight lines to oblique lines 13, and at this time, the top beam is a trapezoidal approximate rectangle.

[0024] combine image 3 , the third embodiment of an integral top beam of the present invention, including a main top beam 1, a filling part 2, a guide rail 3, a limiting device 15 and a small structure 8 in the shape of an arc chamfer and a small groove.

[0025] combine Figure 4 , the front view and top view of the fourth embodiment of an integral top beam of the present invention, including a main top beam 1 whose top surface is a plane 10, a cover beam 9 with a top surface 11 inclined downward, a filling part 2, and a connecting filling part ...

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Abstract

The invention discloses an integral top beam used for a hydraulic bracket of a coal mining working face of coal mine downhole. The top beam comprises a top beam part 1, a device 18 connected with an extending beam, a device 17 connected with a tonstein blocking device or a tail beam, and a post socket 16 connected with a hydraulic support post. The top beam is characterized in that when the beam is moved, the overlooking shape of the top beam which is moved forwards as a whole is an incomplete rectangle or an incomplete approximate rectangle, and the overlooking shape is supplemented into a basically complete rectangle or a basically incomplete approximate rectangle by at least one supplementing part 2. The supplementing part 2 is connected with the top beam part 1 through a hinge 5 and / or a guide rail 3, and a flexible piece 4. Great bending moment and torque subjected to the whole top beam caused by unsmooth top plates are reduced by adjusting the support force to the supplementing part 2 so as to reach the purpose of reducing the weight and the cost o the top beam. The integral top beam is broader with small beam space, so that a top net does not need to be bound when the top coal is placed and the ton coal cost is reduced.

Description

technical field [0001] The invention relates to a top beam used for a hydraulic support for supporting a top plate in an underground coal mining working face of a coal mine. Background technique [0002] The hydraulic support is divided into two categories: the fully mechanized mining support and the sliding roof beam hydraulic support. The present invention is a roof beam for the hydraulic support between the two. Its background technology one is the technology described in the "General Technical Specifications for Sliding Roof Beam Hydraulic Support" of China's coal industry. Existing technology in this field has suspension top beam hydraulic support (Chinese patent application number 88104291.9); Trident hydraulic support (Chinese patent application number 96209441.2); Side-by-side sliding top beam hydraulic support (Chinese patent application number 91200747.8) ; 2L type hydraulic support (Chinese Patent Application No. 200420000157.6), etc. These above-mentioned suppo...

Claims

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Application Information

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IPC IPC(8): E21D17/01
Inventor 李泽宇
Owner 李泽宇
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