A pressure detection type anti-impact energy absorption device suitable for advanced hydraulic support

Abstract

A pressure detection type anti-impact energy absorption device suitable for an advanced hydraulic support, comprising a bottom support plate, a middle anti-impact structure component, a top support plate and a deformation pressure sensor; the bottom support plate, the middle anti-impact structure component and the top support plate are arranged in sequence from bottom to top; four deformation pressure sensors are evenly arranged on the upper surface of the top support plate and are located at the four corner points of the top support plate; four arc-shaped half-moon buffer plates are evenly arranged on the outer peripheral side of the middle anti-impact structure component; the middle anti-impact structure component comprises a plurality of hollow cylinders and the component adopts a multi-level layered structure, the layer structure is divided into two categories and the two types of layer structures are alternately arranged in the height direction; in the first type of layer structure, the hollow cylinders are vertically staggered with each other and the hollow cylinders are all arranged horizontally; in the second type of layer structure, the hollow cylinders are vertically staggered with each other and the hollow cylinders are alternately arranged vertically and horizontally; displacement sensors are provided in the middle of the side facades of the four edges of the bottom support plate and the top support plate and the positions correspond one to one.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine safety, and in particular relates to a pressure detection type anti-impact energy absorption 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.

[0003] In addition, during the coal mining process, the top of the advanced hydraulic support and the top rock wall of the coal mine tunnel often cause the tunnel roof to fall due to excessive contact impact or excessive pressure on the hydraulic support. In order to avoid this kind of phenomenon, it is necessary not only to install a buffer shock-absorbing device on the top of the advanced hydraulic support, but also to install a pressure detection sensor or a pressure strain gauge for pressure detection. However, the repeated installation of the buffer shock-absorbing device and the pressure detection device is not only time-consuming and labor-intensive, but also affects the progress of the project. At the same time, it is also impossible to meet the detection accuracy and it is impossible to monitor the working condition of the buffer shock-absorbing device in real time. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a pressure-detecting anti-impact energy-absorbing device suitable for an advance hydraulic support, which overcomes the problem that the traditional anti-impact device has an unsatisfactory buffering and protection effect, adopts a brand-new structural design scheme, greatly improves the device's impact resistance and shock absorption and buffering capabilities, and can effectively avoid the occurrence of a series of problems caused by excessive impact force and the like during the application of the advance hydraulic support. At the same time, the pressure borne by the anti-impact energy-absorbing device can be measured while buffering and shock absorbing, and whether the anti-impact energy-absorbing device has any lateral displacement or offset can be monitored in real time.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a pressure detection type anti-impact energy absorption device suitable for an advanced hydraulic support, comprising a bottom support plate, a middle anti-impact structural component, a top support plate and a deformation pressure sensor; the bottom support plate, the middle anti-impact structural component and the top support plate are arranged in sequence from bottom to top; the lower end of the middle anti-impact structural component is fixedly connected to the upper surface of the bottom support plate, and the upper end of the middle anti-impact structural component is fixedly connected to the lower surface of the top support plate; the number of the deformation pressure sensors is four, and the four deformation pressure sensors are evenly distributed on the upper surface of the top support plate and located at the four corner points of the top support plate; the deformation pressure sensor is fixedly connected to the upper surface of the top support plate; the signal transmission method of the deformation pressure sensor is wireless transmission method.

[0006] Four arc-shaped half-moon buffer plates are evenly distributed on the outer peripheral side of the middle impact-resistant structural component, the upper ends of the arc-shaped half-moon buffer plates are fixedly connected to the lower surface of the top support plate, and the lower ends of the arc-shaped half-moon buffer plates are fixedly connected to the upper surface of the bottom support plate; the arc-shaped half-moon buffer plates are made of metal material with elastic deformation ability.

[0007] The central impact-resistant structural component includes a plurality of hollow cylinders. The central impact-resistant structural component adopts a multi-level layered structure, and the layer structure is divided into two categories, and the two types of layer structures are arranged alternately in the height direction; the hollow cylinders in the first type of layer structure are vertically staggered with each other, and the hollow cylinders in the first type of layer structure are all arranged horizontally; the hollow cylinders in the second type of layer structure are vertically staggered with each other, and the hollow cylinders in the second type of layer structure are arranged alternately vertically and horizontally; the material of the hollow cylinders is high-elastic rubber.

[0008] Bottom plate displacement sensors are arranged in the middle of the four edge side elevations of the bottom support plate, and the bottom plate displacement sensors are fixedly connected to the bottom support plate; top plate displacement sensors are arranged in the middle of the four edge side elevations of the top support plate, and the top plate displacement sensors are fixedly connected to the top support plate; the installation positions of the bottom plate displacement sensors in the middle of the four edge side elevations of the bottom support plate and the top plate displacement sensors in the middle of the four edge side elevations of the top support plate correspond one to one; the signal transmission method of the bottom plate displacement sensor and the top plate displacement sensor is wireless transmission method.

[0009] Beneficial effects of the present invention:

[0010] The pressure-detecting anti-impact energy-absorbing device suitable for the advance 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 device's anti-impact ability and shock absorption and buffering ability, and can effectively avoid the occurrence of a series of problems caused by excessive impact force and the like during the application of the advance hydraulic support. At the same time, the pressure borne by the anti-impact energy-absorbing device can be measured while buffering and shock absorbing, and whether the anti-impact energy-absorbing device has any lateral displacement or offset can be monitored in real time. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0012] Figure 2 It is a schematic structural diagram of the middle impact-resistant structural assembly 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 plate, 4 is a deformation pressure sensor, 5 is an arc-shaped half-moon buffer plate, 6 is a hollow cylinder, 7 is a bottom plate displacement sensor, and 8 is a top plate displacement sensor. 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 , 2 As shown, a pressure detection type anti-impact energy absorption device suitable for an advanced hydraulic support includes a bottom support plate 1, a middle anti-impact structure component 2, a top support plate 3 and a deformation pressure sensor 4; the bottom support plate 1, the middle anti-impact structure component 2 and the top support plate 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 upper end of the middle anti-impact structure component 2 is fixedly connected to the lower surface of the top support plate 3; the number of the deformation pressure sensors 4 is four, and the four deformation pressure sensors 4 are evenly distributed on the upper surface of the top support plate 3 and are located at the four corner points of the top support plate 3; the deformation pressure sensor 4 is fixedly connected to the upper surface of the top support plate 3; the signal transmission method of the deformation pressure sensor 4 is wireless transmission method.

[0016] Four arc-shaped semi-lunar buffer plates 5 are evenly distributed on the outer peripheral side of the middle impact-resistant structural component 2, the upper ends of the arc-shaped semi-lunar buffer plates 5 are fixedly connected to the lower surface of the top support plate 3, and the lower ends of the arc-shaped semi-lunar buffer plates 5 are fixedly connected to the upper surface of the bottom support plate 1; the arc-shaped semi-lunar buffer plates 5 are made of metal material with elastic deformation ability.

[0017] The central impact-resistant structural component 2 includes a plurality of hollow cylinders 6. The central impact-resistant structural component 2 adopts a multi-level layered structure, and the layer structure is divided into two categories, and the two types of layer structures are arranged alternately in the height direction; the hollow cylinders 6 in the first type of layer structure are vertically staggered with each other, and the hollow cylinders 6 in the first type of layer structure are all arranged horizontally; the hollow cylinders 6 in the second type of layer structure are vertically staggered with each other, and the hollow cylinders 6 in the second type of layer structure are arranged alternately vertically and horizontally; the material of the hollow cylinders 6 is high-elastic rubber.

[0018] A bottom plate displacement sensor 7 is arranged in the middle of the four edge side elevations of the bottom support plate 1, and the bottom plate displacement sensor 7 is fixedly connected to the bottom support plate 1; a top plate displacement sensor 8 is arranged in the middle of the four edge side elevations of the top support plate 3, and the top plate displacement sensor 8 is fixedly connected to the top support plate 3; the installation positions of the bottom plate displacement sensor 7 in the middle of the four edge side elevations of the bottom support plate 1 and the top plate displacement sensor 8 in the middle of the four edge side elevations of the top support plate 3 correspond one to one; the signal transmission mode of the bottom plate displacement sensor 7 and the top plate displacement sensor 8 is wireless transmission mode.

[0019] 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, and the top support plate 3 serves as the top basic support of the entire device. Both of them 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 arc-shaped half-moon buffer plate 5, when the device as a whole is subjected to pressure, the deformation of the arc-shaped half-moon buffer plate 5 can play a good role in decompression and shock prevention. For the middle anti-impact structural component 2, it is the core anti-impact shock-absorbing component of the entire device, which is mainly used to disperse the extrusion force from the top plate to play a good role in shock absorption and shock prevention. At the same time, the special structure adopted by the middle anti-impact structural component 2 can also effectively avoid the occurrence of offset phenomenon, ensuring that the middle anti-impact structural component 2 can only deform in the vertical direction to the maximum extent. 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 capacity 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. For the deformation pressure sensor 4, when the deformation pressure sensor 4 is subjected to the extrusion force, the pressure value it bears will be tested by the size of the deformation, and the collected pressure information can be wirelessly transmitted to the computer for analysis. For the bottom plate displacement sensor 7 and the top plate displacement sensor 8, under normal circumstances, the connection line between the bottom plate displacement sensor 7 and the top plate displacement sensor 8 is a 90-degree vertical line. When the device as a whole is offset or lateral, the inclination angle of the connection line between the bottom plate displacement sensor 7 and the top plate displacement sensor 8 on the same side will change. When it is detected that the inclination angle of the connection line exceeds a certain limit, the position signal will be transmitted to the computer in a line for analysis. When the computer analyzes the received pressure signal and position signal and determines that it is abnormal, it will immediately issue an alarm to remind the underground staff to deal with it in time.

[0020] 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 pressure detection type anti-impact energy absorption device suitable for an advanced hydraulic support, characterized in that: It includes a bottom support plate, a middle impact-resistant structural component, a top support plate and a deformation pressure sensor; the bottom support plate, the middle impact-resistant structural component and the top support plate 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 upper end of the middle impact-resistant structural component is fixedly connected to the lower surface of the top support plate; the number of the deformation pressure sensors is four, and the four deformation pressure sensors are evenly arranged on the upper surface of the top support plate and are located at the four corner points of the top support plate; the deformation pressure sensor is fixedly connected to the upper surface of the top support plate; the signal transmission method of the deformation pressure sensor is wireless transmission; four arc-shaped semi-lunar buffer plates are evenly arranged on the outer peripheral side of the middle impact-resistant structural component, the upper end of the arc-shaped semi-lunar buffer plate is fixedly connected to the lower surface of the top support plate, and the lower end of the arc-shaped semi-lunar buffer plate is fixedly connected to the upper surface of the bottom support plate; the arc-shaped semi-lunar buffer plate is made of a metal material with elastic deformation ability; the middle impact-resistant structural component includes A plurality of hollow cylinders, wherein the middle anti-impact structural components adopt a multi-level layered structure, and the layer structures are divided into two categories, and the two types of layer structures are arranged alternately in the height direction; the hollow cylinders in the first type of layer structure are vertically staggered with each other, and the hollow cylinders in the first type of layer structure are all arranged horizontally; the hollow cylinders in the second type of layer structure are vertically staggered with each other, and the hollow cylinders in the second type of layer structure are arranged alternately vertically and horizontally; the material of the hollow cylinders is high-elastic rubber; bottom plate displacement sensors are arranged in the middle of the four edge side elevations of the bottom support plate, and the bottom plate displacement sensors are fixedly connected to the bottom support plate; top plate displacement sensors are arranged in the middle of the four edge side elevations of the top support plate, and the top plate displacement sensors are fixedly connected to the top support plate; the installation positions of the bottom plate displacement sensors in the middle of the four edge side elevations of the bottom support plate and the top plate displacement sensors in the middle of the four edge side elevations of the top support plate correspond one to one; the signal transmission method of the bottom plate displacement sensor and the top plate displacement sensor is a wireless transmission method.

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