Top beam type constant resistance structure
A technology of roof beam and bearing side, applied in mining equipment, earthwork drilling, installation of bolts, etc., can solve the problems of broken cable body, failure of anchoring, large deformation of roadway, etc., and achieves strong bearing and positioning ability and stable positioning ability. , the use of flexible and convenient effects
Inactive Publication Date: 2018-12-07
曹素军 +2
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Problems solved by technology
[0002] The problem of large deformation roadway support has always been one of the bottlenecks restricting the efficient production of coal mines. Due to pressure, cable breakage, anchorage failure and other forms of damage often occur, resulting in the failure of the support system. At present, coal mine technicians often use to increase the support strength and density to improve the support effect. This method not only does not effectively improve The support effect will seriously increase the cost of roadway support, and even increase the possibility of roadway roof fall in some areas. Therefore, how to realize the constant resistance and yield pressure of anchor cable support is a research in the field of roadway support at present. Hot Issues
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[0016] Such as figure 1 As shown in -4, a top beam type constant resistance structure includes a load-bearing square steel 1, a broken pipe 2, a cutting sling 3, a clamping piece 4 and a pressure spring 5, and the load-bearing square steel 1 and the broken pipe 2 are both cross-sectional It is a rectangular tubular structure, wherein at least one guide rail 6 is arranged on each side surface of the load-bearing square steel 1, and the guide rail 6 is distributed parallel to the axis of the load-bearing square steel 1, and a tray 7 is arranged on the front end of the load-bearing square steel 1, and The through hole 8 is connected with the bearing square steel 1 through the through hole 8. The broken pipe 2 is embedded in the bearing square steel 1 and distributed coaxially with the bearing square steel 1 and the through hole 2. The front end of the broken pipe 2 passes through the bearing The compression spring 5 is connected with the tray 7, the side wall of the broken pipe 2...
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The invention relates to a top beam type constant resistance structure. The top beam type constant resistance structure comprises bearing square steel, a fractured pipe, a breaking rigging, a clampingplate and a pressure-bearing spring. A tray is arranged on the upper end face of the bearing square steel, a hole is formed in the tray, the fractured pipe is embedded in the bearing square steel, the front end face of the fractured pipe is connected with the tray through the pressure-bearing spring, and the tail end of the fractured pipe is connected with the breaking rigging. The front end of the breaking rigging is embedded in the fractured pipe and is in sliding connection with the inner surface of the fractured pipe. The breaking rigging comprises a bearing block, a breaking platform anda locating hole. On the one hand, the top beam type constant resistance structure can effectively provide constant friction positioning force for anchor cables, steel and other equipment, on the other hand, the top beam type constant resistance structure can effectively adjust the positioning position of equipment such as the anchor cables and the drilling steel under the premise of not changingthe friction positioning force with the change of the external force, the stable positioning ability can be satisfied, and the structural damage conditions of the equipment such as the anchor cable and the drilling steel due to excessive external force is avoided.
Description
technical field [0001] The invention relates to a top beam type constant resistance structure, which belongs to the technical field of anchor cables. Background technique [0002] The problem of large deformation roadway support has always been one of the bottlenecks restricting the efficient production of coal mines. Due to pressure, cable breakage, anchorage failure and other forms of damage often occur, resulting in the failure of the support system. At present, coal mine technicians often use to increase the support strength and density to improve the support effect. This method not only does not effectively improve The effect of support, on the contrary, seriously increases the cost of roadway support, and even increases the possibility of roadway roof fall in some areas. Therefore, how to realize the constant resistance and yield pressure of anchor cable support is a research in the field of roadway support at present. Hot Issues. In view of the shortcomings of the a...
Claims
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Login to View More IPC IPC(8): E21D20/00E21D21/00
CPCE21D20/00E21D21/008
Inventor 曹素军车双陈晨
Owner 曹素军
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