Composite impact-resistant energy absorption device suitable for advanced hydraulic support
A technology of hydraulic supports and energy-absorbing devices, which can be used in mine roof supports, mining equipment, earthwork drilling and mining, etc., and can solve problems such as unsatisfactory buffering and protection effects
Pending Publication Date: 2021-04-30
兖矿能源集团股份有限公司 +1
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Problems solved by technology
[0003] Aiming at the problems existing in the prior art, the present invention provides a compound anti-shock energy-absorbing device suitable for advanced hydraulic supports, which overcomes the problem of unsatisfactory cushioning and protection of traditional shock-proof devices, and adopts a brand-new structural design scheme, The impact resistance and shock absorption and buffering capacity of the device have been greatly improved, which can effectively avoid a series of problems caused by excessive impact force and other reasons during the application of the advanced hydraulic support.
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[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0015] Such as figure 1 , 2 As shown, a compound anti-shock energy-absorbing device suitable for advanced hydraulic supports includes a bottom support plate 1, a middle anti-shock structural component 2 and a top support block 3; the bottom support plate 1, the middle anti-shock structural component 2 and the top support block 3 are arranged sequentially from bottom to top;
[0016] Four supporting columns 4 are evenly distributed on the outer peripheral side of the impact-resistant structural component 2 in the middle. The supporting columns 4 adopt a two-stage telescopic structure. It is fixedly connected with the inner cylinder of the support column 4, and the lower end of the high damping spring is fixedly connected with the outer cylinder of the support column 4; the upper end of the inner cylinder of the support column 4 is fi...
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The invention provides a composite impact-resistant energy absorption device suitable for an advanced hydraulic support. The device comprises a bottom supporting plate, a middle impact-resistant structure assembly and top supporting blocks, wherein the bottom supporting plate, the middle impact-resistant structure assembly and the top supporting blocks are sequentially arranged from bottom to top; four supporting stand columns are evenly distributed on the peripheral side of the middle impact-resistant structure assembly and are of a two-stage telescopic structure, and high-damping springs are vertically installed in the supporting stand columns; the four top supporting blocks are evenly distributed at the upper end of the middle impact-resistant structure assembly and are made of high-elasticity rubber; the middle impact-resistant structure assembly comprises a high-elasticity impact-resistant structural part and a shell, and the high-elasticity impact-resistant structural part is of a structure that a plurality of hollow cylinders are connected side by side and wrapped by the shell; the high-elasticity impact-resistant structural part is made of an impact-resistant functional gradient material; and a side face auxiliary impact-resistant structure assembly is arranged on the side portion of the middle impact-resistant structure assembly and comprises a plurality of fixing columns, and the fixing columns are connected in an interactive mode.
Description
technical field [0001] The invention belongs to the technical field of coal mine safety, and in particular relates to a composite impact-resistant energy-absorbing device suitable for an advanced hydraulic support. Background technique [0002] With the widespread implementation of intelligent mining technology in coal mines, the output and efficiency of coal mining have been greatly improved, but there are still some problems in the process of coal mining, and these problems become more and more obvious as the output increases. For example, during the application process, the advanced hydraulic support will be subjected to the alternating action of roof rock movement and impact pressure. The excessive impact force will easily lead to accelerated aging of the advanced hydraulic support, shortened service life, and even cause safety accidents. In order to avoid such problems, some simple anti-shock devices are usually fixedly installed in some places with relatively high impa...
Claims
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IPC IPC(8): E21D23/04E21D23/06
CPCE21D23/04E21D23/06
Inventor 孟祥军张坤亓玉浩李玉霞孙绍安魏训涛苏金鹏赵学强张代祥刘增锴
Owner 兖矿能源集团股份有限公司