An all-round high-strength compressible U-shaped steel cable
A high-strength, all-round technology, applied in the direction of earth drilling, mining equipment, pillars/supports, etc., can solve the problems of loss of support, waste of manpower, material and financial resources, insufficient contact of U-shaped steel, etc., to achieve safety High, low manufacturing cost, good support effect
Inactive Publication Date: 2016-01-13
HUNAN UNIV OF SCI & TECH
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Problems solved by technology
This method has strong adaptability in tunnel engineering, but the metal connection device must undergo special processing regardless of its strength, rigidity, or shape, and the cost is relatively high
Moreover, the contact between the metal connection device and the first fixed U-shaped steel is not sufficient, and the fixation is relatively not firm enough. It can only be limited to the contraction of the two U-shaped steels in the up and down direction, while the left and right directions are rigidly connected. If the horizontal pressure of the roadway is large, due to Limited deformation and compression cannot be achieved in the left and right directions. The superimposed connection part of the U-shaped steel metal bracket is in the left and right directions, which is prone to twisting and breaking, causing the support to lose its effect
In this way, the roadway is in danger of being repaired or scrapped, which greatly wastes manpower, material and financial resources.
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[0018] The present invention will be further described below in conjunction with the accompanying drawings.
[0019] Such as figure 1 , 2 As shown, the present invention includes a first U-shaped steel block 1, a compressible annular sleeve 2, a first solid U-shaped steel 3, a second solid U-shaped steel 4, two springs 5, a second U-shaped steel block 6 and bolts 7; Such as image 3 , 4 As shown, the bottom surfaces of the first U-shaped steel block 1 and the second U-shaped steel block 6 are provided with bolt holes 11, 61 for the bolts 7 to pass through. Such as Figure 5 As shown, there is a rectangular hole 31 on the bottom surface of the joint between the first U-shaped steel 3 and the second U-shaped steel 4 to be fixed. Such as Figure 6 As shown, the second fixed U-shaped steel 4 corresponding to the rectangular hole 31 on the first fixed U-shaped steel 3 is provided with a rectangular hole 41, near the two ends of the rectangular hole 41 are welded with two ends...
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The invention discloses an all-dimensional high-strength compressible U-type steel clamp cable which comprises a first U-type steel block, a second U-type steel block, first fixed U-type steel, second fixed U-type steel, a compressible annular sleeve and bolts. Bolt holes are formed in the bottom face of the first U-type steel block and the bottom face of the second U-type steel block, rectangular holes are correspondingly formed in the bottom face of the connecting position of the first fixed U-type steel and the second fixed U-type steel, two springs are arranged in the rectangular holes of the first fixed U-type steel or / and the second fixed U-type steel, the first U-type steel block and the second U-type steel block clamp the connecting position of the first fixed U-type steel and the second fixed U-type steel, and the first U-type steel block, the second U-type steel block, the first fixed U-type steel, the second fixed U-type steel and the compressible annular sleeve are fastened through the bolts. The all-dimensional high-strength compressible U-type steel clamp cable has good support effects, is safe and reliable in use, and further has the advantages of being simple in structure, convenient to use and low in manufacturing cost.
Description
technical field [0001] The invention relates to a clamping cable device, in particular to an all-round high-strength compressible U-shaped steel clamping cable for mine roadways. Background technique [0002] U-shaped steel bracket refers to the semi-(full) closed metal bracket with the cross-sectional shape of the roadway, which is composed of U-shaped steel sections connected to each other through metal connectors. The card cable is a kind of U-shaped steel bracket metal connector, which is widely used because of its simple structure, convenience and practicality, and moderate price. [0003] At present, in the support construction of U-shaped steel brackets in shafts and geotechnical engineering, two U-shaped steel sections are superimposed and overlapped at the beginning and end, and then fixed with U-shaped steel metal connection devices. This method has strong adaptability in tunnel engineering, but the metal connection device must undergo special processing regardles...
Claims
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IPC IPC(8): E21D15/50E21D15/14
Inventor 余伟健郭罡业王卫军
Owner HUNAN UNIV OF SCI & TECH