Lightweight high-pressure-resistance bionic hexapod coal mine conveying support

Abstract

The light high-pressure-resistance bionic hexapod coal mine conveying support comprises a center supporting column and six sets of bionic supporting legs arranged around the center supporting column, a connecting disc is fixedly arranged at the lower end of the center supporting column, each set of bionic supporting legs comprises an inner supporting rod and an outer supporting rod, and the upper ends of the inner supporting rods and the upper ends of the outer supporting rods are connected through thigh hinges; the center line of the inner supporting rod, the center line of the outer supporting rod and the center line of the center supporting column are located on the same vertical plane, the lower end of the inner supporting rod is fixedly connected to the connecting disc, the included angle between the inner supporting rod and the center supporting column is an acute angle, and the length of the outer supporting rod is larger than that of the inner supporting rod. Through advanced double bionic innovative structural design, a spatial layout supporting structure of six feet of an ant is ingeniously simulated, a precisely-designed reinforcing rib network structure is adopted in each group of bionic supporting legs, a special mechanical structure of bamboo joints is fused, and an innovative supporting system integrating light weight, high strength and high stability is formed.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine transportation, and in particular relates to a lightweight and highly compressive bionic hexapod coal mine transportation support under variable load conditions. Background Art

[0002] As a key supporting device in the coal mine transportation system, the conveyor bracket not only bears the basic function of supporting the conveyor body, but also ensures the straightness of the conveyor belt running track through scientific mechanical design, and can flexibly adjust the height and angle of the conveyor according to the actual working conditions. This bracket system plays an indispensable role in the safe operation of belt conveyors and scraper conveyors. As a key supporting device in industrial infrastructure, the conveyor bracket plays an irreplaceable role in major national economic fields such as oil extraction, chemical production, coal mining, and tunnel engineering. Its application scope covers underground transportation systems and open-pit ore material transportation in mining; cement production lines and sand and gravel aggregate transportation in the building materials industry; bulk cargo loading and unloading and container transshipment at port terminals; and fuel transportation, raw material transportation, ash treatment and fuel storage and transportation in the power industry. These application scenarios are not only closely related to strategic fields such as national energy security, industrial production, and infrastructure construction, but also directly affect the safety and efficiency of people's livelihood projects. Especially in energy security systems such as coal and electricity, the reliability and stability of the conveyor bracket plays a vital role in ensuring the safe operation of the energy supply chain, and is one of the important infrastructures to ensure the national economy and people's livelihood.

[0003] With the rapid development and intelligent upgrading of modern industry, the performance requirements of various industries for conveyor supports are constantly increasing. Especially in key indicators such as safety, stability and load-bearing capacity, industry standards are becoming more and more stringent. Taking the coal mine transportation system as an example, the conveyor support has been operating in extreme environments with high humidity, dust and severe vibration for a long time, and needs to continue to withstand the test of dynamic variable loads. These harsh working conditions are prone to cause wear and metal fatigue in the support structure. Once the support fails, it will not only cause blockage of the conveying system, but may also cause the interruption of the entire mining operation chain. The reliability of the support system is directly related to production efficiency and economic benefits. Any failure may cause the mining operation to be forced to stop production, resulting in huge economic losses. What is more serious is that the sudden failure of the support structure may cause safety accidents such as equipment collapse and material falling, posing a serious threat to the life safety of underground workers. Summary of the invention

[0004] In order to solve the above technical problems existing in the prior art, the present invention provides a lightweight and high-compression-resistant bionic six-legged coal mine conveying support with large bearing capacity, strong impact load resistance, and high safety and reliability.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a lightweight and highly compressive bionic six-legged coal mine conveying support, comprising a central pillar and six groups of bionic legs arranged around the central pillar, a connecting plate fixedly provided at the lower end of the central pillar, the diameter of the connecting plate being larger than the diameter of the central pillar, each group of bionic legs comprising an inner support rod and an outer support rod, the upper end of the inner support rod and the upper end of the outer support rod are connected by a femoral hinge, the center line of the inner support rod, the center line of the outer support rod and the center line of the central pillar are located in the same vertical plane, the lower end of the inner support rod is fixedly connected to the connecting plate, the angle between the inner support rod and the central pillar is an acute angle, the angle between the inner support rod and the outer support rod is an acute angle, and the length of the outer support rod is larger than that of the inner support rod.

[0006] The femoral-tibial hinge includes a pin shaft, a flat plate and a flat through groove formed at the upper end of the inner support rod. The flat plate is fixed at the upper end of the outer support rod or is made integrally with the outer support rod. The flat plate is assembled in the flat through groove and is rotatably connected to the upper end of the inner support rod through the pin shaft. The upper end of the inner support rod is provided with a limit stop located on the outside of the flat plate.

[0007] The upper end of the inner support rod is at the same height as the upper end of the central support column, and a threaded connection hole is arranged at the upper end of the central support column.

[0008] Four of the six groups of bionic legs are arranged in a circular array along the center line of the central pillar, and the angle adjustment range of the outer and inner struts of the four groups of bionic legs arranged in the circular array is 28° to 32°, preferably 30°; The other two groups of bionic legs are arranged symmetrically about the center line of the central pillar, and the included angles between the vertical planes where the two groups of centrally symmetrical bionic legs are located and the vertical planes where any adjacent group of bionic legs are located are all 45°; The adjustment range of the included angle between the outer support rods and the inner support rods of the two groups of centrosymmetric bionic support legs is 43° to 48°, preferably 45°.

[0009] The outer support rod and the inner support rod are both hollow tubes, and a reinforcing rib network structure is arranged inside the hollow tubes.

[0010] The reinforcement rib network structure includes two vertically arranged intersecting long reinforcement rib plates, the intersection line of the two long reinforcement rib plates is the center line of the hollow tube, and the two intersecting long reinforcement rib plates divide the interior of the hollow tube into four cavities with fan-shaped cross-sections. Each fan-shaped cavity is provided with an arc-shaped reinforcement tube with an opening toward the center of the hollow tube. The two side edges of the arc-shaped reinforcement tube are fixedly connected to the surface of the long reinforcement rib plates, and the middle part of the outer side surface of the arc-shaped reinforcement tube is fixedly connected to the inner wall of the hollow tube through a connecting rib.

[0011] The length ratio of the outer support rod to the inner support rod is 1.6-2.0:1, preferably 1.8:1.

[0012] The above technical scheme is adopted, and the design concept of the present invention is inspired by the common ants in life. Ants are the most powerful creatures in the world to resist natural disasters and have super bearing capacity. According to mechanics, an ant can lift a weight that is more than 400 times its own weight, which can be called a veritable "super strongman" in the animal kingdom. The ant limbs are observed and characterized, and the structural characteristics of their limbs and key construction parameters are extracted. The bearing capacity of the conveying bracket is taken as the main indicator to determine the design scheme of the compression bracket. The present invention adopts an innovative six-point support structure design. The six groups of bionic legs are symmetrically distributed with the central pillar as the center, which scientifically and reasonably disperses and balances the load pressure on the bearing connection plate. This bionic design not only significantly improves the overall bearing capacity, but also effectively enhances the stability and anti-overturning ability of the conveying bracket under dynamic variable loads through the uniform arrangement of six force points. Compared with the traditional design, the six-point support structure has stronger adaptability, can better cope with various load changes under complex working conditions, and ensure the stable operation of the equipment. In addition, the symmetrical layout design also reduces the stress concentration of a single support point and prolongs the service life of the conveying bracket.

[0013] The present invention innovatively incorporates the biological structural characteristics of bamboo into the structural design of the bionic legs. Bamboo has formed a unique internode structure in the process of natural evolution, which enables it to effectively withstand the multi-directional composite loads brought by wind, rain, snow and frost. By simulating the mechanical structure of bamboo internodes, a unique rib network structure is designed inside the outer and inner support rods. This bionic structure adopts a precisely calculated internal rib layout, which significantly enhances the tensile and compressive properties of the bionic legs, and greatly improves the overall strength and service life of the structure. The hollow design of the bionic legs not only cleverly draws on the structural advantages of bamboo, but also optimizes the overall weight by reducing redundant materials. This lightweight design effectively reduces the use of raw materials and production costs while ensuring structural strength, fully embodying the sustainable development concept of green material saving, environmental protection and emission reduction.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) The threaded connection hole at the upper end of the center pillar is used to connect the conveyor frame. The lower ends of the six outer support rods are supported on the ground. The center pillar supports the conveyor. The upper ends of the six inner support rods are at the same height as the upper end of the center pillar. Therefore, the six inner support rods also play an auxiliary supporting role.

[0015] (2) A limit block is provided at the upper end of the inner support rod of the femoral-tibial hinge on the outer side of the flat plate to limit the upward rotation of the flat plate (outer support rod), and the lower end of the flat through groove is used to limit the downward rotation of the flat plate (outer support rod), thereby limiting the set angle between the outer support rod and the inner support rod.

[0016] (3) A reinforcing rib network structure is set inside the outer and inner support rods, which greatly improves the strength of the support rods while reducing the weight as much as possible.

[0017] (4) The reinforcing rib network structure adopts the method of crossing two long reinforcing rib plates, and arc-shaped reinforcing tubes and connecting ribs are arranged in the four spaces formed between the two long reinforcing rib plates and the inner wall of the hollow tube. This structure imitates the internal structure of bamboo and has high compressive and bending resistance.

[0018] To sum up, the present invention cleverly simulates the spatial layout support structure of the six legs of an ant through an advanced dual bionic innovative structural design. The interior of each set of bionic legs adopts a precisely designed reinforcing rib network structure, creatively integrating the unique mechanical structure of bamboo joints to form an innovative support system that is lightweight, high-strength and high-stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a top view of the present invention; Figure 3 yes Figure 1 A schematic diagram of the structure of a set of bionic legs; Figure 4 yes Figure 3 Enlarged view of the mid-femoral-tibial hinge; Figure 5 is a schematic cross-sectional view of an outer support rod or an inner support rod; Figure 6 It is a schematic diagram of the planar structure of two groups of bionic legs that are centrally symmetrical among four groups of bionic legs that are arranged in a circular array around the center line of a central pillar; Figure 7 It is a schematic diagram of the planar structure of two groups of centrosymmetric bionic legs, wherein the included angles with the vertical planes where any adjacent group of bionic legs are located are all 45 degrees. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0021] like Figure 1-Figure 7 As shown, the lightweight and highly compressive bionic six-legged coal mine conveying support of the present invention comprises a central pillar 1 and six groups of bionic legs arranged around the central pillar 1, a connecting plate 2 is fixedly provided at the lower end of the central pillar 1, the diameter of the connecting plate 2 is larger than the diameter of the central pillar 1, each group of bionic legs comprises an inner support rod 3 and an outer support rod 4, the upper end of the inner support rod 3 and the upper end of the outer support rod 4 are connected by a femoral hinge 5, the center line of the inner support rod 3, the center line of the outer support rod 4 and the center line of the central pillar 1 are located in the same vertical plane, the lower end of the inner support rod 3 is fixedly connected to the connecting plate 2, the angle between the inner support rod 3 and the central pillar 1 is an acute angle, the angle between the inner support rod 3 and the outer support rod 4 is an acute angle, and the length of the outer support rod 4 is larger than the inner support rod 3.

[0022] The femoral-tibial hinge 5 includes a pin shaft 6, a flat plate 7 and a flat through groove 8 provided at the upper end of the inner support rod 3. The flat plate 7 is fixed to the upper end of the outer support rod 4 or is made integrally with the outer support rod 4. The flat plate 7 is assembled in the flat through groove 8 and is rotatably connected to the upper end of the inner support rod 3 through the pin shaft 6. The upper end of the inner support rod 3 is provided with a limit stop block 9 located on the outside of the flat plate 7.

[0023] The upper end of the inner support rod 3 is at the same height as the upper end of the central support column 1 , and a threaded connection hole 10 is provided at the upper end of the central support column 1 .

[0024] Four of the six groups of bionic legs are arranged in a circular array around the center line of the central support 1, and the angle adjustment range of the outer support rods 4 and the inner support rods 3 of the four groups of bionic legs arranged in a circular array is 28° to 32°, preferably 30°; The other two groups of bionic legs are arranged symmetrically about the center line of the central pillar 1, and the included angles between the vertical planes where the two groups of centrally symmetrical bionic legs are located and the vertical plane where any adjacent group of bionic legs is located are both 45°; The adjustment range of the included angle between the outer support rod 4 and the inner support rod 3 of the two sets of centrosymmetric bionic support legs is 43° to 48°, preferably 45°.

[0025] The outer support rod 4 and the inner support rod 3 are both hollow tubes 11, and a reinforcing rib network structure is provided inside the hollow tube 11.

[0026] The reinforcing rib network structure includes two vertically arranged intersecting long reinforcing rib plates 12, the intersection line of the two long reinforcing rib plates 12 is the center line of the hollow tube 11, and the two intersecting long reinforcing rib plates 12 divide the interior of the hollow tube 11 into four cavities 13 with fan-shaped cross-sections. Each fan-shaped cavity 13 is provided with an arc-shaped reinforcing tube 14 with an opening toward the center of the hollow tube 11. The two side edges of the arc-shaped reinforcing tube 14 are fixedly connected to the surface of the long reinforcing rib plates 12, and the middle part of the outer side surface of the arc-shaped reinforcing tube 14 is fixedly connected to the inner wall of the hollow tube 11 through a connecting rib 15.

[0027] The length ratio of the outer support rod 4 to the inner support rod 3 is 1.6-2.0:1, preferably 1.8:1.

[0028] The design concept of the present invention is inspired by common ants in life. Ants are the most powerful creatures in the world in resisting natural disasters and have super bearing capacity. According to mechanics, an ant can lift a weight that is more than 400 times its own weight, which can be called a veritable "super strongman" in the animal kingdom. The ant limbs are observed and characterized, and the structural characteristics of their limbs and key construction parameters are extracted. The bearing capacity of the conveying bracket is taken as the main indicator to determine the design scheme of the compression bracket. The present invention adopts an innovative six-point support structure design. The six groups of bionic legs are symmetrically distributed with the central pillar 1 as the center, which scientifically and reasonably disperses and balances the load pressure on the bearing connection plate 2. This bionic design not only significantly improves the overall bearing capacity, but also effectively enhances the stability and anti-overturning ability of the conveying bracket under dynamic variable loads through the uniform arrangement of six force points. Compared with the traditional design, the six-point support structure has stronger adaptability, can better cope with various load changes under complex working conditions, and ensure the stable operation of the equipment. In addition, the symmetrical layout design also reduces the stress concentration of a single support point and prolongs the service life of the conveying bracket.

[0029] The present invention innovatively incorporates the biological structural characteristics of bamboo into the structural design of the bionic legs. Bamboo has formed a unique internode structure in the process of natural evolution, which enables it to effectively resist the multi-directional composite loads brought by wind, rain, snow and frost. By simulating the mechanical structure of bamboo internodes, a unique rib network structure is designed inside the outer support rod 4 and the inner support rod 3. This bionic structure adopts a precisely calculated internal rib layout, which significantly enhances the tensile and compressive properties of the bionic legs, and greatly improves the overall strength and service life of the structure. The hollow design of the bionic legs not only cleverly draws on the structural advantages of bamboo, but also optimizes the overall weight by reducing redundant materials. This lightweight design effectively reduces the use of raw materials and production costs while ensuring structural strength, fully embodying the sustainable development concept of green material saving, environmental protection and emission reduction.

[0030] The structure of the present invention has the following beneficial effects: (1) The threaded connection hole 10 at the upper end of the central support 1 is used to connect the conveyor frame. The lower ends of the six outer support rods 4 are supported on the ground. The central support 1 supports the conveyor. The upper ends of the six inner support rods 3 are at the same height as the upper end of the central support 1. Therefore, the six inner support rods 3 also play an auxiliary supporting role.

[0031] (2) A limit stopper 9 is provided at the upper end of the inner support rod 3 of the femoral-tibial hinge 5 on the outer side of the flat plate 7 to limit the upward rotation of the flat plate 7 (outer support rod 4). The lower end of the flat through groove 8 is used to limit the downward rotation of the flat plate 7 (outer support rod 4), thereby limiting the set angle between the outer support rod 4 and the inner support rod 3.

[0032] (3) A reinforcing rib network structure is provided inside the outer support rod 4 and the inner support rod 3, which greatly improves the strength of the support rod while reducing the weight as much as possible.

[0033] (4) The reinforcing rib network structure adopts the method of crossing two long reinforcing rib plates 12, and arc-shaped reinforcing tubes 14 and connecting ribs 15 are arranged in the four spaces formed between the two long reinforcing rib plates 12 and the inner wall of the hollow tube 11. This structure is similar to the internal structure of bamboo and has high compressive and bending resistance.

[0034] The above embodiments illustrate the basic principles and features of the present invention, but the above only illustrates the preferred embodiments of the present invention and is not limited to the embodiments. Under the inspiration of this patent, a person skilled in the art can make many forms of deformation and improvement without departing from the scope of protection of the present invention and the claims, which are all within the protection scope of the present invention. Therefore, the patent and protection scope of the present invention shall be subject to the attached claims.

Claims

1. Lightweight and high compression resistance bionic six-legged coal mine conveying support, characterized by: It includes a central pillar and six groups of bionic legs arranged around the central pillar. A connecting plate is fixed at the lower end of the central pillar. The diameter of the connecting plate is larger than the diameter of the central pillar. Each group of bionic legs includes an inner support rod and an outer support rod. The upper end of the inner support rod and the upper end of the outer support rod are connected by a femoral hinge. The center lines of the inner support rod, the outer support rod and the central pillar are located in the same vertical plane. The lower end of the inner support rod is fixedly connected to the connecting plate. The angle between the inner support rod and the central pillar is an acute angle. The angle between the inner support rod and the outer support rod is an acute angle. The length of the outer support rod is larger than that of the inner support rod.

2. The lightweight and highly compressive bionic hexapod coal mine transport support according to claim 1 is characterized by: The femoral-tibial hinge includes a pin shaft, a flat plate and a flat through groove formed at the upper end of the inner support rod. The flat plate is fixed at the upper end of the outer support rod or is made integrally with the outer support rod. The flat plate is assembled in the flat through groove and is rotatably connected to the upper end of the inner support rod through the pin shaft. The upper end of the inner support rod is provided with a limit stop located on the outside of the flat plate.

3. The lightweight and highly compressive bionic hexapod coal mine transport support according to claim 1 or 2, characterized in that: The upper end of the inner support rod is at the same height as the upper end of the central support column, and a threaded connection hole is arranged at the upper end of the central support column.

4. The lightweight and highly compressive bionic hexapod coal mine transport support according to claim 1 or 2, characterized in that: Four of the six groups of bionic legs are arranged in a circular array along the center line of the central pillar, and the angle adjustment range of the outer and inner struts of the four groups of bionic legs arranged in the circular array is 28° to 32°, preferably 30°; The other two groups of bionic legs are arranged symmetrically about the center line of the central pillar, and the included angles between the vertical planes where the two groups of centrally symmetrical bionic legs are located and the vertical planes where any adjacent group of bionic legs are located are all 45°; The adjustment range of the included angle between the outer support rods and the inner support rods of the two groups of centrosymmetric bionic support legs is 43° to 48°, preferably 45°.

5. The lightweight and highly compressive bionic hexapod coal mine transport support according to claim 1 or 2, characterized in that: The outer support rod and the inner support rod are both hollow tubes, and a reinforcing rib network structure is arranged inside the hollow tubes.

6. The lightweight and highly compressive bionic hexapod coal mine transport support according to claim 5 is characterized by: The reinforcement rib network structure includes two vertically arranged intersecting long reinforcement rib plates, the intersection line of the two long reinforcement rib plates is the center line of the hollow tube, and the two intersecting long reinforcement rib plates divide the interior of the hollow tube into four cavities with fan-shaped cross-sections. Each fan-shaped cavity is provided with an arc-shaped reinforcement tube with an opening toward the center of the hollow tube. The two side edges of the arc-shaped reinforcement tube are fixedly connected to the surface of the long reinforcement rib plates, and the middle part of the outer side surface of the arc-shaped reinforcement tube is fixedly connected to the inner wall of the hollow tube through a connecting rib.

7. The lightweight and highly compressive bionic hexapod coal mine transport support according to claim 1 or 2, characterized in that: The length ratio of the outer support rod to the inner support rod is 1.6-2.0:1, preferably 1.8:1.

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