Portable and detachable pillar stability and bottom plate load transfer simulation device
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A technology of load transfer and simulation device, which is used in measuring devices, using stable tension/pressure to test the strength and strength characteristics of materials, etc.
Inactive Publication Date: 2018-11-27
TAIYUAN UNIV OF TECH
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Problems solved by technology
[0005] ① The loading method cannot be precisely controlled. The top pressure loading of the traditional similar simulation test bench can only be loaded by the servo control method as a whole, and cannot be loaded separately for each part;
[0006] ②The cost of manufacture and use is too high. The size and specifications of the two-dimensional plane physical simulation experiment racks currently used are generally large, and the model making is time-consuming and labor-intensive, and takes up a lot of space;
[0007] ③Existing devices are fixed on the ground, difficult to disassemble and transport
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Embodiment 1
[0029] This embodiment provides a portable detachable pillar stability and floor load transfer simulation device, such as figure 1 As shown, it includes a top pressure loading part, a side pressure loading part, a bottom support part and a baffle plate; The pressure bearing plate 104 and two upper pressure plates 105; the number of side pressure loading parts is two, which are arranged equidistantly on both sides of the pressure head 102, including side beams 201, side pressure bearing plates 202, side pressure plates 203, and side pressure applying bolts 204, a screw rod 205 and a spring 206; the bottom support portion includes a bottom beam 301 opposite to the top beam 101; as figure 2 As shown, the middle part of the top beam 101 is provided with a pressure head layout hole 106; the upper pressure plate 104 is located between the two upper pressure plates 105, and the total area of the upper pressure plate 104 and the two upper pressure plates 105 is the same as that of ...
Embodiment 2
[0037] This embodiment provides specific dimensions based on the portable and detachable pillar stability and floor load transfer simulation device described in Embodiment 1.
[0038] Such as figure 2 As shown, the length of the top beam 101 is 500mm, the diameter of the pressure head arrangement hole 106 at the waist is 55mm, and a screw hole with a diameter of 11~12mm is drilled at the waist at a distance of 10mm from both ends without tapping, which can penetrate M10 bolts .
[0039] The indenter 102 is cylindrical, made of No. 45 steel, with a diameter of 50mm and a height of 120mm.
[0040] The upper pressure plate 104 is 5mm thick, 80mm wide, and has five sizes of 50mm, 75mm, 100mm, 125mm and 150mm in length; The total length of the plate 104 and the two upper platens 105 is always 350 mm, and the distance from the top beam 101 is 50 mm.
[0041] The length of side beam 201 is 500mm, such as image 3 As shown, the waist is provided with two side beam threaded holes ...
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Abstract
The invention provides a portable and detachable pillar stability and bottom plate load transfer simulation device, and belongs to the technical field of pillar stability and bottom plate load transfer simulation devices. The device includes a top pressure loading part, side pressure loading parts, a bottom supporting part and a baffle plate. The top pressure loading part includes a top beam, a pressure head, hydraulic pumps, and an upper bearing plate and two upper pressing plates for pressing against the top of a rock simulator. The number of the side pressure loading parts is two, and the side pressure loading parts are equidistantly arranged on the two sides of the pressure head. Each side pressure loading part includes a side beam, side bearing plates, side pressure plates, side pressure applying bolts, screw rods and springs. The bottom supporting part includes a bottom beam arranged opposite to the top beam. The baffle plate is connected to the front side and the back side of each side beam through connecting pieces. The device can portably and detachably achieve servo loading and constant pressure loading of different parts of the upper part of the rock simulator and side pressure loading and upper and lateral co-loading of the rock simulator.
Description
technical field [0001] The invention relates to the technical field of a simulation device for pillar stability and floor load transfer, in particular to a portable and detachable pillar stability and floor load transfer simulation device. Background technique [0002] For mining, the retention of ore pillars is inevitable. There are a large number of ore pillars in mines all over the world, and the instability of these ore pillars will cause the sudden collapse of the surface, resulting in the loss and casualty of surface structures and personnel. In addition, the existence of ore pillars has caused great troubles to the mining of the lower ore body (coal seam), and the clarification of the floor load transfer law has a decisive role in the formulation of roadway layout and mine pressure control measures for the lower ore body (coal seam). Therefore, the study of pillar stability and floor load transfer is of great significance. [0003] In order to control mine pressure ...
Claims
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Application Information
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