A composite anti-impact energy absorbing device suitable for advanced hydraulic support

Abstract

A composite anti-impact energy-absorbing device suitable for an advanced hydraulic support, comprising a bottom support plate, a middle anti-impact structural component and a top support block; the bottom support plate, the middle anti-impact structural component and the top support block are arranged in sequence from bottom to top; four support columns are evenly distributed on the outer peripheral side of the middle anti-impact structural component, the support columns adopt a two-stage telescopic structure, and high-damping springs are vertically installed inside the support columns; four top support blocks are evenly distributed on the upper end of the middle anti-impact structural component, and the top support blocks are made of high-elastic rubber; the middle anti-impact structural component comprises a high-elastic anti-impact structural member and an outer shell, the high-elastic anti-impact structural member adopts a structure in which multiple hollow cylinders are connected in parallel and are wrapped by the outer shell; the materials of the high-elastic anti-impact structural members are all anti-impact functional gradient materials; a side auxiliary anti-impact structural component is provided on the side of the middle anti-impact structural component, which comprises multiple fixed columns, and each fixed column adopts an interactive connection structure.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine safety, and in particular relates to a composite anti-impact energy absorbing device suitable for an advanced hydraulic support. Background Art

[0002] With the widespread implementation of intelligent coal mining technology, the output and efficiency of coal mining have been greatly improved, but there are still some problems in the coal mining process, and these problems are becoming more and more prominent as the output increases. For example, during the application process, the advanced hydraulic support will be subjected to the alternating effects of roof rock movement and impact pressure. Due to excessive impact force, it is easy to cause the advanced hydraulic support to age faster, shorten its service life, and even cause safety accidents. In order to avoid such problems, some simple anti-impact devices are usually fixed and installed at some locations with large impact forces to play a role in shock absorption, protection, and impact resistance. However, the structure of the traditional anti-impact device is too simple, and it fails to play a good buffering and protective role, and cannot effectively avoid the occurrence of a series of problems caused by excessive impact force and other reasons. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a composite anti-impact energy absorption device suitable for an advanced hydraulic support, which overcomes the problem that the traditional anti-impact device has an unsatisfactory buffering and protection effect, adopts a new structural design scheme, greatly improves the impact resistance and shock absorption and buffering capabilities of the device, and can effectively avoid a series of problems caused by excessive impact force and the like during the application of the advanced hydraulic support.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a composite anti-impact energy absorption device suitable for an advanced hydraulic support, comprising a bottom support plate, a middle anti-impact structure assembly and a top support block; the bottom support plate, the middle anti-impact structure assembly and the top support block are arranged in sequence from bottom to top; the lower end of the middle anti-impact structure assembly is fixedly connected to the upper surface of the bottom support plate, and the top support block is fixedly arranged at the upper end of the middle anti-impact structure assembly.

[0005] Four supporting columns are evenly distributed on the outer peripheral side of the middle impact-resistant structural component. The supporting columns adopt a two-stage telescopic structure. A high-damping spring is vertically installed inside the supporting columns. The upper end of the high-damping spring is fixedly connected to the inner cylinder of the supporting column, and the lower end of the high-damping spring is fixedly connected to the outer cylinder of the supporting column; the upper end of the inner cylinder of the supporting column is fixedly connected to the lower surface of the top support block, and the lower end of the outer cylinder of the supporting column is fixedly connected to the upper surface of the bottom support plate.

[0006] There are four top support blocks, which are evenly distributed on the upper end of the middle impact-resistant structural component. The lower surface of the top support block is fixedly connected to the upper end of the middle impact-resistant structural component and the upper end of the inner cylinder of the support column. The material of the top support block is high-elastic rubber.

[0007] The middle impact-resistant structural component includes a high-elastic impact-resistant structural part and an outer shell. The high-elastic impact-resistant structural part adopts a structure of multiple hollow cylinders connected side by side, and the high-elastic impact-resistant structural part is wrapped by the outer shell; the material of the high-elastic impact-resistant structural part is an impact-resistant functional gradient material.

[0008] A side auxiliary impact-resistant structural component is arranged on the side of the central impact-resistant structural component, and the side auxiliary impact-resistant structural component includes a plurality of fixing columns, and each fixing column adopts an interactively connected structural form, and the plurality of fixing columns are fixedly connected together by a highly elastic rolled plate; the fixing columns are connected to the outer shell of the central impact-resistant structural component, and the connection position of each fixing column on the outer shell is located between two adjacent rows of hollow cylinders in the highly elastic impact-resistant structural component.

[0009] Beneficial effects of the present invention:

[0010] The composite anti-impact energy absorbing device suitable for the advanced hydraulic support of the present invention overcomes the problem that the traditional anti-impact device has an unsatisfactory buffering and protection effect, adopts a new structural design scheme, greatly improves the impact resistance and shock absorption buffering capacity of the device, and can effectively avoid a series of problems caused by excessive impact force during the application of the advanced hydraulic support. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a composite anti-impact energy absorbing device suitable for an advanced hydraulic support of the present invention;

[0012] Figure 2 It is a structural schematic diagram of a composite anti-impact energy absorbing device (bottom support plate, top support block and support column are not shown) suitable for an advanced hydraulic support of the present invention;

[0013] In the figure, 1 is a bottom support plate, 2 is a middle impact-resistant structural component, 3 is a top support block, 4 is a support column, 5 is a high-elastic impact-resistant structural component, 6 is an outer shell, 7 is a side auxiliary impact-resistant structural component, 8 is a fixed column, and 9 is a high-elastic rolled plate. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1 , 2As shown, a composite anti-impact energy absorption device suitable for an advanced hydraulic support includes a bottom support plate 1, a middle anti-impact structure component 2 and a top support block 3; the bottom support plate 1, the middle anti-impact structure component 2 and the top support block 3 are arranged in sequence from bottom to top; the lower end of the middle anti-impact structure component 2 is fixedly connected to the upper surface of the bottom support plate 1, and the top support block 3 is fixedly arranged at the upper end of the middle anti-impact structure component 2.

[0016] Four support columns 4 are evenly distributed on the outer peripheral side of the middle impact-resistant structural component 2. The support columns 4 adopt a two-stage telescopic structure. A high-damping spring is vertically installed inside the support column 4. The upper end of the high-damping spring is fixedly connected to the inner cylinder of the support column 4, and the lower end of the high-damping spring is fixedly connected to the outer cylinder of the support column 4; the upper end of the inner cylinder of the support column 4 is fixedly connected to the lower surface of the top support block 3, and the lower end of the outer cylinder of the support column 4 is fixedly connected to the upper surface of the bottom support plate 1.

[0017] There are four top support blocks 3, which are evenly distributed at the upper end of the middle impact-resistant structural component 2. The lower surface of the top support block 3 is fixedly connected to the upper end of the middle impact-resistant structural component 2 and the upper end of the inner cylinder of the support column 4. The material of the top support block 3 is high-elastic rubber.

[0018] The middle impact-resistant structural component 2 includes a high-elastic impact-resistant structural member 5 and a shell 6. The high-elastic impact-resistant structural member 5 adopts a structure of multiple hollow cylinders connected side by side, and the high-elastic impact-resistant structural member 5 is wrapped by the shell 6. The material of the high-elastic impact-resistant structural member 5 is an impact-resistant functional gradient material. Specifically, since the multiple hollow cylinders in the high-elastic impact-resistant structural member 5 are distributed in the same direction, when the high-elastic impact-resistant structural member 5 is wrapped with the shell 6, it can play a good role in preventing lateral deviation.

[0019] A lateral auxiliary anti-impact structural component 7 is provided on the side of the middle anti-impact structural component 2, and the lateral auxiliary anti-impact structural component 7 includes a plurality of fixing columns 8, and each fixing column adopts an interactively connected structural form, and the plurality of fixing columns 8 are fixedly connected together by a highly elastic rolled plate 9; the fixing columns 8 are connected to the outer shell 6 of the middle anti-impact structural component 2, and the connection position of each fixing column 8 on the outer shell 6 is located between two adjacent rows of hollow cylinders in the highly elastic anti-impact structural component 5. Specifically, due to the existence of the lateral auxiliary anti-impact structural component 7, the overall structure of the highly elastic anti-impact structural component 5 can be made more stable and less prone to lateral deviation.

[0020] When the anti-impact energy absorption device of the present invention is actually applied, the bottom support plate 1 serves as the bottom basic support of the entire device. It can be made of low-density, high-hardness lightweight metal materials to ensure the stability of the supporting and fixing effect. In addition, for the support column 4, in the initial state, the inner cylinders of the four support columns 4 are all in a fully extended state. When subjected to pressure, they will retract downward. At this time, the high-damping spring inside the support column 4 is compressed, thereby playing a supporting, anti-impact, and shock-absorbing role. For the top support block 3, its upper surface is directly in contact with the tunnel rock wall. Since it is made of high-elastic rubber, it has good ductility and resilience, and can produce good anti-impact and buffering effects. The middle anti-impact structural component 2 is the core anti-impact and shock-absorbing component of the entire device. When the advanced hydraulic support is used in conjunction with the anti-impact energy absorption device of the present invention, the impact resistance and shock absorption and buffering capabilities are ultimately greatly improved, which can effectively avoid the occurrence of a series of problems caused by excessive impact force and other reasons during the application of the advanced hydraulic support.

[0021] The solutions in the embodiments are not intended to limit the patent protection scope of the present invention. All equivalent implementations or changes that do not deviate from the present invention are included in the patent scope of this case.

Claims

1. A composite anti-impact energy absorbing device suitable for an advanced hydraulic support, characterized in that: The support frame comprises a bottom support plate, a middle impact-resistant structural component and a top support block; the bottom support plate, the middle impact-resistant structural component and the top support block are arranged in sequence from bottom to top; the lower end of the middle impact-resistant structural component is fixedly connected to the upper surface of the bottom support plate, and the top support block is fixedly arranged on the upper end of the middle impact-resistant structural component; four support columns are evenly arranged on the outer peripheral side of the middle impact-resistant structural component, and the support column adopts a two-stage telescopic structure, and a high-damping spring is vertically installed inside the support column, the upper end of the high-damping spring is fixedly connected to the inner cylinder of the support column, and the lower end of the high-damping spring is fixedly connected to the outer cylinder of the support column; the upper end of the inner cylinder of the support column is fixedly connected to the The lower surface of the top support block is fixedly connected, and the lower end of the outer cylinder of the support column is fixedly connected to the upper surface of the bottom support plate; the number of the top support blocks is four, and the four top support blocks are evenly arranged at the upper end of the middle impact-resistant structural component, and the lower surface of the top support block is fixedly connected to the upper end of the middle impact-resistant structural component and the upper end of the inner cylinder of the support column at the same time; the material of the top support block is high-elastic rubber; the middle impact-resistant structural component includes a high-elastic impact-resistant structural member and an outer shell, the high-elastic impact-resistant structural member adopts a structure of multiple hollow cylinders connected side by side, and the high-elastic impact-resistant structural member is wrapped by the outer shell; the material of the high-elastic impact-resistant structural member is an impact-resistant functional gradient material; A side auxiliary impact-resistant structural component is arranged on the side of the central impact-resistant structural component, and the side auxiliary impact-resistant structural component includes a plurality of fixing columns, and each fixing column adopts an interactively connected structural form, and the plurality of fixing columns are fixedly connected together by a highly elastic rolled plate; the fixing columns are connected to the outer shell of the central impact-resistant structural component, and the connection position of each fixing column on the outer shell is located between two adjacent rows of hollow cylinders in the highly elastic impact-resistant structural component.

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