Constant resistance telescopic device using elastic deformation of solid material
A technology of elastic deformation and solid materials, applied in mining equipment, earth square drilling, pillars/brackets, etc., can solve the problems of high cost and complex structure, and achieve the effect of low cost, convenient operation and simple structure
Inactive Publication Date: 2015-09-02
江苏中矿立兴能源科技有限公司
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Problems solved by technology
[0002] The constant resistance shrinkable device refers to a device that increases the compression after the load reaches the working resistance, and the working resistance remains basically constant. This kind of device is widely used in the support and single pillar of the coal mining face. There are many components in the shrinking device, but its structure is complex and the cost is high
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[0012] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0013] The self-locking device of the elastic sphere tapered surface of the present invention mainly consists of a cylinder 1 , a living cylinder 2 and an elastic sphere 3 . Described live cylinder 2 stretches in the cylinder barrel 1, and the inner wall of described cylinder barrel 1 inlet is conical surface 4, and in the conical surface 4 between cylinder barrel 1 and the live cylinder body 2 that extends into cylinder barrel 1 The elastic spheres 3 are placed, and the elastic spheres 3 are evenly and equidistantly connected in series by the series wires 6 . The two ends of the rigid ball 3 are respectively provided with fixed knots 7 for fixing the series wires 6 . The outer wall of the living cylinder 2 is provided with a scale mark for controlling the depth of entering the cylinder 1 and the limit height of the lift. Such as figure 2 shown. The top...
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A constant resistance telescopic device using elastic deformation of solid material comprises a cylinder barrel, a moving post and elastic balls; the upper portion of the inner wall of the cylinder barrel is conical, and the lower portion of the inner wall of the cylinder barrel is planar; the elastic balls are connected in series through a connecting line and are fixed through a fixing knot; the top of the cylinder barrel is provided with a cylinder barrel presser; a post presser is disposed on the lower portion of the moving post; when the moving post tends to move down under stress, the elastic balls jam the sliding faces of the moving post and cylinder barrel to disable retraction, when the moving post bears sufficient downward force, the elastic balls deform, and the moving post slides down; friction which the elastic balls apply to the moving post is a fixed value, and the moving post slides down with constant resistance. The constant resistance telescopic device is simple in structure and convenient to operate.
Description
technical field [0001] The invention relates to a constant-resistance shrinkable device utilizing the elastic deformation characteristics of solid materials, in particular to a constant-resistance shrinkable device which utilizes the elastic deformation characteristics of solid materials and is suitable for rapid elongation for pressure-bearing support. Background technique [0002] The constant resistance shrinkable device refers to the device that increases the compression after the load reaches the working resistance, and the working resistance remains basically constant. This kind of device is widely used in the support and single pillar of the coal mining face. The compression device has many parts, but its structure is complicated and the cost is high. Therefore researching and providing a kind of self-locking device that can stretch quickly and bear pressure is a problem that needs to be solved urgently on site. Contents of the invention [0003] Technical problem:...
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IPC IPC(8): E21D15/50
Inventor 崔灿刘华萍
Owner 江苏中矿立兴能源科技有限公司