Mine engineering underground supporting device

Abstract

The utility model discloses a mine engineering underground supporting device which comprises a supporting beam, the supporting beam comprises an arm guard outer frame and a supporting arm, the arm guard outer frame and the supporting arm are both in an arc shape, arc-shaped guide grooves are formed in the two sides of the arm guard outer frame, arc-shaped sliding blocks limited in the arc-shaped guide grooves in a sliding mode are fixed to the two sides of the supporting arm, and the arc-shaped sliding blocks are arranged in the arc-shaped guide grooves in a sliding mode. The protective arm outer frame and the supporting arm can slide in a staggered mode according to the top of an underground tunnel, and side supporting assemblies supported on the two side walls of the underground tunnel are arranged at the two ends of the protective arm outer frame and the two ends of the supporting arm correspondingly. The protection arm outer frame and the supporting arm are matched through the arc-shaped guide groove and the sliding block, the supporting beam is allowed to slide along an arc-shaped track when staggered and can be attached to the top of a tunnel, the problem that a traditional rigid supporting device is prone to fracture due to stress concentration is solved, adaptability and safety of the device are improved, and the supporting device is suitable for large-scale popularization and application. And a three-dimensional stable system is formed by the cone thorns, the clamping teeth and the bottom plate, surrounding rock deformation and impact loads are effectively resisted, and the roof fall risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mine supporting, and particularly relates to an underground mine engineering supporting device. BACKGROUND

[0002] Mine collapse accidents have always been the top killer in mine accidents. The collapse of the mine tunnel of the mine will directly lead to insufficient oxygen supply inside the mine, causing workers working in the mine to suffocate and die. In order to avoid mine collapse accidents, the prior art generally uses a supporting device to support and protect the mine underground during mine exploitation, thereby reducing the accident rate of mine exploitation.

[0003] According to the search, the underground mine engineering supporting device with the publication number CN222184792U comprises a support column one, a connecting pipe, a support column two, a support range adjusting assembly, a support height adjusting assembly and a pressure monitoring assembly. The connecting pipe is located at the top end of the support column one, the support column two is located at the top end of the connecting pipe, the support range adjusting assembly is located outside the support column one and the support column two, the support height adjusting assembly is located inside the connecting pipe, and the pressure monitoring assembly is located at the connection between the support column one and the connecting pipe and the connection between the support column two and the connecting pipe. The supporting device can adjust the support range and height according to the use environment, can monitor and buffer the support pressure, and can early warn the collapse of the mine.

[0004] However, the above supporting device technology has the following problems: the above supporting device adopts the support column one, the connecting pipe, the support column two, the support range adjusting assembly, the support height adjusting assembly and the pressure monitoring assembly to form a supporting system. The supporting system is a single-point rigid support, which is prone to fracture due to stress concentration, thereby causing insufficient adaptability and safety problems of the device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an underground mine engineering supporting device to solve the problem that the traditional rigid supporting device is prone to fracture due to stress concentration.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an underground mine engineering supporting device, comprising a supporting beam, wherein the supporting beam comprises an arm outer frame and a supporting arm, the arm outer frame and the supporting arm are both arc-shaped, arc-shaped guide grooves are formed on both sides of the arm outer frame, arc-shaped sliding blocks fixed on both sides of the supporting arm are located in the arc-shaped guide grooves, the arm outer frame and the supporting arm can slide according to the dislocation of the underground tunnel top, and side support assemblies supporting the two side walls of the underground tunnel are arranged at both ends of the arm outer frame and the supporting arm.

[0007] Preferably, a conical spike penetrating into the soil layer of the underground tunnel top is arranged on the outer arc surface of both ends of the arm outer frame and the supporting arm.

[0008] Preferably, both the outer end of the guard arm frame and the inner arc surface of the support arm are provided with locking teeth for limiting the side support assembly.

[0009] Preferably, the outer arc surface of the outer end of the support arm is provided with a groove for the passage of pipes or cables.

[0010] Preferably, the side support assembly includes a support rod, the top of which is hinged to the outer frame of the guard arm or the support arm, the bottom of which is slidably connected to a bottom support rod, a bolt for fixing the bottom support rod is provided on one side of the support rod, and an inclined support rod is hinged to the upper part of the support rod.

[0011] Preferably, the diagonal brace is U-shaped and has a pointed end.

[0012] Preferably, a base plate is fixed to the bottom of the bottom support rod, and the base plate and the bottom support rod are distributed in a T-shape.

[0013] Preferably, screw holes are provided at both ends of the base plate.

[0014] Compared with the prior art, this utility model provides an underground support device for mining engineering, which has the following beneficial effects:

[0015] 1. The outer frame of the protective arm and the support arm of this utility model adopt the cooperation of arc-shaped guide groove and slider, which allows the support beam to slide along the arc-shaped trajectory when misaligned, so as to fit the tunnel top. This solves the problem that traditional rigid support devices are prone to breakage due to stress concentration, improves the adaptability and safety of the device, and forms a three-dimensional stable system through the cone, the tooth, and the bottom plate, which effectively resists the deformation of the surrounding rock and the impact load, and reduces the risk of roof collapse.

[0016] 2. The outer frame and the two ends of the support arm of this utility model are equipped with cone spikes, which can penetrate into the top soil layer of the tunnel, enhance the initial anchoring force, and prevent the support device from slipping. It is especially suitable for soft or broken rock layers.

[0017] 3. The locking teeth on the inner arc surface of the outer end of this utility model cooperate with the tip of the diagonal brace to achieve rapid positioning, simplify the installation process and improve stability. The diagonal brace adopts a U-shaped tip design, which can achieve rapid positioning by locking the tip into the locking teeth, and can also distribute the force and enhance the lateral support strength. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of an underground support device for mining engineering proposed in this utility model;

[0020] Figure 2 Figure 1 is a whole front view structural schematic diagram of a mine engineering underground supporting device according to the present application;

[0021] Figure 3 Figure 2 is a supporting beam structural schematic diagram according to the present application;

[0022] Figure 4 Figure 3 is a supporting beam disassembled structural schematic diagram according to the present application;

[0023] Figure 5 Figure 4 is a side support assembly structural schematic diagram according to the present application;

[0024] Figure 6 Figure 5 is a side support assembly disassembled structural schematic diagram according to the present application;

[0025] In the figure: 1, arm outer frame; 11, arc-shaped guide groove; 12, conical spike; 13, clamping tooth; 2, supporting arm; 21, arc-shaped sliding block; 22, groove; 3, side support assembly; 31, supporting rod; 32, bottom supporting rod; 33, bottom plate; 34, bolt; 35, inclined supporting rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figure 1 and Figure 2 The present application provides a technical solution: a mine engineering underground supporting device, comprising a supporting beam, the supporting beam comprising an arm outer frame 1 and a supporting arm 2, the arm outer frame 1 and the supporting arm 2 are both arc-shaped, arc-shaped guide grooves 11 are formed on both sides of the arm outer frame 1, arc-shaped sliding blocks 21 slidingly limited in the arc-shaped guide grooves 11 are fixed on both sides of the supporting arm 2, the arm outer frame 1 and the supporting arm 2 can slide according to the dislocation of the underground tunnel top, the arm outer frame 1 and the supporting arm 2 adopt the cooperation of the arc-shaped guide grooves 11 and the arc-shaped sliding blocks 21, allowing the supporting beam to slide along the arc-shaped track when dislocated and to be able to fit the tunnel top, the arm outer frame 1 and the supporting arm 2 are both provided with side support assemblies 3 supporting the two side walls of the underground tunnel.

[0028] Please refer to Figure 3 and Figure 4, the outer frame 1 and the two outer arc surfaces of the supporting arm 2 are provided with the conical spikes 12 which can be inserted into the soil layer of the tunnel roof, so that the initial anchoring force is enhanced, the supporting device is prevented from slipping, and the supporting device is especially suitable for soft or broken rock stratum, the outer end inner arc surfaces of the outer frame 1 and the supporting arm 2 are provided with the clamping teeth 13 for limiting the opposite side support assembly 3, the outer arc surfaces of the outer end of the supporting arm 2 are provided with the grooves 22 for the pipeline or cable to pass through, the grooves 22 of the outer arc surfaces of the supporting arm 2 provide a passing channel for the underground pipeline or cable, the interference of the traditional supporting device on the underground facilities is avoided, and the space utilization rate is improved.

[0029] Please refer to Figure 5 and Figure 6 , the opposite side support assembly 3 comprises a supporting rod 31, the top of the supporting rod 31 is hinged to the outer frame 1 or the supporting arm 2, the bottom of the supporting rod 31 is slidably connected with a bottom supporting rod 32, one side of the supporting rod 31 is provided with a bolt 34 for fixing the bottom supporting rod 32, the upper portion of the supporting rod 31 is hinged with an inclined supporting rod 35, the inclined supporting rod 35 is in U shape and the end portion is in sharp shape, the quick self-locking positioning is realized, the installation process is simplified and the stability is improved, the inclined supporting rod 35 adopts the U-shaped sharp head design, the quick positioning can be realized by clamping the sharp end into the clamping teeth 13, the stress can be dispersed, the lateral supporting strength is enhanced, the bottom of the bottom supporting rod 32 is fixedly connected with a bottom plate 33, the bottom plate 33 and the bottom supporting rod 32 are in T shape, both ends of the bottom plate 33 are provided with screw holes, the conical spike 12, the clamping tooth 13 and the bottom plate 33 form a three-dimensional stable system, the deformation and impact load of the surrounding rock are effectively resisted, the risk of roof falling is reduced, the sliding connection of the supporting rod 31 and the bottom supporting rod 32 can flexibly adjust the supporting height according to the tunnel height, the T-shaped bottom plate 33 and the screw hole at the bottom of the bottom supporting rod 32 are convenient for being fixed to the ground through the foundation bolt, and a double stable system is formed.

[0030] The working principle and use process of the utility model are as follows: in use, first, the supporting width of the supporting beam is adjusted according to the width of the underground tunnel, the outer frame 1 and the supporting arm 2 are pulled in opposite directions, the arc-shaped sliding blocks 21 on both sides of the supporting arm 2 are slid in the arc-shaped guide grooves 11 of the outer frame 1 to lengthen the supporting beam, then the supporting beam is close to the tunnel roof, the conical spikes 12 of the outer frame 1 and the supporting arm 2 are inserted into the soil layer of the tunnel roof, then the supporting rod 31 of the opposite side support assembly 3 is rotated to the two sides and close to the tunnel side wall, the sharp end of the inclined supporting rod 35 is abutted on the clamping teeth 13 of the outer frame 1 and the supporting arm 2 to limit the supporting rod 31, the supporting height is adjusted by the sliding of the bottom supporting rod 32 relative to the supporting rod 31, the bottom supporting rod 32 is fixed through the bolt 34, and finally the bottom plate 33 is fixed through the foundation bolt;

[0031] The assembly is completed through the above sliding, tooth engagement and bolt fixing, the dependence on complex tools is reduced, and the construction period is shortened, the scheme realizes the self-adaptability, rapid installation, high-strength support and multifunctional integration of the supporting device through structural innovation, the safety and efficiency of underground operation are significantly improved, the problems of poor applicability and complex installation of the traditional supporting device under complex geological conditions are solved, and the scheme has high engineering practical value.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A mine underground support device, comprising a support beam, characterized in that: The support beam includes a protective arm frame (1) and a support arm (2). Both the protective arm frame (1) and the support arm (2) are arc-shaped. Arc-shaped guide grooves (11) are provided on both sides of the protective arm frame (1). Arc-shaped sliders (21) with sliding limits located in the arc-shaped guide grooves (11) are fixed on both sides of the support arm (2). The protective arm frame (1) and the support arm (2) can slide according to the misalignment of the tunnel top. Both ends of the protective arm frame (1) and the support arm (2) are provided with side support components (3) that support the two side walls of the tunnel.

2. The underground support device for mining engineering according to claim 1, characterized in that: Both ends of the outer arc surface of the guard arm frame (1) and the support arm (2) are provided with cones (12) that can penetrate into the top soil layer of the underground tunnel.

3. The underground support device for mining engineering according to claim 1, characterized in that: Both the outer end of the guard arm frame (1) and the inner arc surface of the support arm (2) are provided with locking teeth (13) for limiting the side support assembly (3).

4. The underground support device for mining engineering according to claim 1, characterized in that: The outer end of the support arm (2) is provided with a groove (22) for pipes or cables to pass through.

5. The underground support device for mining engineering according to claim 1, characterized in that: The side support assembly (3) includes a support rod (31), the top of which is hinged to the outer frame (1) of the guard arm or the support arm (2), the bottom of which is slidably connected to a bottom support rod (32), a bolt (34) for fixing the bottom support rod (32) is provided on one side of the support rod (31), and a diagonal support rod (35) is hinged to the upper part of the support rod (31).

6. The underground support device for mining engineering according to claim 5, characterized in that: The diagonal brace (35) is U-shaped and has a pointed end.

7. The underground support device for mining engineering according to claim 5, characterized in that: The bottom of the bottom support rod (32) is fixed with a base plate (33), and the base plate (33) and the bottom support rod (32) are distributed in a T-shape.

8. The underground support device for mining engineering according to claim 7, characterized in that: Both ends of the base plate (33) are provided with screw holes.

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