Anchor rod anchoring pull-out test teaching model capable of changing anchor rod support parameters
A pull-out test and bolt support technology is applied in the field of experimental teaching models, which can solve the problems of unintuitive simulation, inability to simulate bolts, inaccuracy, etc., and achieve the effects of simple structure, reduced test teaching cost, and simple operation.
Inactive Publication Date: 2018-07-31
青岛本末岩控技术有限公司 +1
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Problems solved by technology
[0003] The purpose of the present invention is to provide a teaching model of bolt anchorage pullout test which can change the anchor bolt support parameters, so as to solve the problem that the current anchor bolt anchorage pullout test teaching model cannot simulate different anchor bolt distances, row spacing and support positions. The problem of complex operation, unintuitive and inaccurate simulation
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[0023] Such as Figure 1 to Figure 7 As shown, this embodiment provides a teaching model for bolt anchorage pull-out test that can change bolt support parameters, including a top plate 11, a support frame 12, an upper plate 21, a lower plate 22, a through-hole jack 23, and a steel pipe 3 , drilling rig 9, hydraulic cylinder 41, hydraulic pump 71 and computer etc. The upper end of the support frame 12 is assembled and connected to the top plate 11 , and a plurality of upper plates 21 are assembled and connected to the top plate 11 . Specifically, the top plate 11 in this embodiment is provided with a slideway 14 along the front and rear direction of the top plate 11, and a slider 18 is arranged on the slide plate 17, and the slide plate 17 is slidably connected with the slideway 14 through the slide block 18, and the slideway 14 is provided with There are a plurality of draw-in grooves 15, and the slide block 18 is provided with a block 16 which is engaged with the draw-in gro...
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The invention provides an anchor rod anchoring pull-out test teaching model capable of changing anchor rod support parameters. The upper end of a support frame is provided with a top plate. The top plate is provided with a plurality of upper plate blocks. The upper plate blocks are provided with screw thread blind holes. Lower plate blocks are provided with through holes. The upper plate blocks and the lower plate blocks are connected through centre hole jacks, and the cavities of the centre hole jacks are connected to the screw thread blind holes and the through holes. Metal pipes pass through the through holes and are connected to the screw thread blind holes of the upper plate blocks via the cavities of the centre hole jacks. The lower end of the support frame is provided with a drilling machine. A hydraulic oil cylinder is arranged right below the lower plate blocks. The upper end of the hydraulic oil cylinder is provided with clamping portions. The plurality of clamping portions are provided with one plastic net plate. A displacement sensor is arranged between the plastic net plate and the lower plate blocks. The hydraulic oil cylinder is connected to a hydraulic pump via a hydraulic pipeline. The hydraulic pipeline is provided with a pressure sensor. The displacement sensor and the pressure sensor are connected to a controller in a signal connection mode. The model has advantages that the support parameters of different distances and row distances of anchor rods, support positions and the like can be simulated; operation is simple; and simulation is visual and accurate.
Description
technical field [0001] The invention relates to the technical field of test teaching models, in particular to a teaching model for bolt anchoring and pulling out experiments capable of changing bolt support parameters. Background technique [0002] The roadway support in coal mining is the most important mining technical problem, how to make the coal mine roadway support safer and more economical is also the primary task faced by coal technicians. Among the current support technologies, bolt support is an extremely important support technology, which is widely used in coal mine roadways, slope improvement, foundation pit excavation support, etc. Theoretical teaching has always been the main teaching method in colleges and universities. Students seldom have the opportunity to go to coal mines to touch the drilling, anchoring and monitoring of anchorage in the process of roadway support. Moreover, the existing teaching model for bolt anchorage pullout test is complex in simul...
Claims
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IPC IPC(8): G09B25/02G01N19/04
CPCG09B25/02G01N19/04
Inventor 吴士良李亚春韩伟杨路林马峰
Owner 青岛本末岩控技术有限公司