Adjustable supporting frame for supporting coal mine tunnel

Abstract

The utility model relates to the technical field of coal mine roadway supporting, and particularly discloses an adjustable supporting frame for coal mine roadway supporting, which comprises a top frame, steel frames are fixedly connected to the left end and the right end of the top frame, and filling assemblies are arranged at the ends, close to a roadway, of the top frame and the steel frames. The filling assembly comprises a concave plate fixedly connected to the ends, close to the roadway, of the top frame and the steel frame, a round hole is formed in the outer portion of the concave plate, a hose is movably connected into the concave plate, a round rod is movably connected into the hose, a check block is fixedly connected to the outer portion of the round rod, and the check block is fixedly connected to the outer portion of the steel frame. A stop block is fixedly connected to the end, close to the hose, of the stop block, connecting frames are fixedly connected between the top frame and the two steel frames, and when filling is needed between the coal mine roadway and the supporting frame, the gap of the roadway and the uneven wall can be filled, so that the gap reserved between the steel frames and the roadway is avoided, and the working efficiency is improved. Therefore, the supporting effect is effectively enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine roadway support technical field especially is related to a kind of adjustable support frame for coal mine roadway support. BACKGROUND

[0002] Roadway is drilled between surface and ore body Various passages, used to transport ore, ventilation, drainage, pedestrians and newly drilled for metallurgical equipment mined ore Various necessary preparatory works, etc., these passages, collectively known as roadway.

[0003] Common support frame includes wooden frame, metal frame, anchor rod support and anchor spray support, etc., each type has its unique advantages and disadvantages and application range, in practical application, appropriate support frame type should be selected according to the specific conditions and support requirements of roadway;

[0004] In prior art, according to roadway size and surrounding rock pressure selection, I-beam is usually used as roof beam and shed leg, connected by bolt or welding, but before installing support frame for coal mine roadway support, coal mine roadway inner wall needs to be leveled, and uneven roadway inner wall will leave gap after installation, which is easy to cause inclination and instability of support frame, so that some parts of support frame cannot fully exert its carrying capacity, thereby affecting the use safety of roadway.

[0005] Therefore, a kind of adjustable support frame for coal mine roadway support is proposed. INVENTION CONTENTS

[0006] The utility model aims at providing a kind of adjustable support frame for coal mine roadway support, when needing to fill between coal mine roadway and support frame, device can fill in the gap of coal mine roadway and uneven wall, so as to avoid the gap between steel frame and coal mine roadway, and then the effect of support can be effectively enhanced, to solve the problems proposed in the above background.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of adjustable support frame for coal mine roadway support, including roof rack, the left and right ends of the roof rack are all fixedly connected with steel frame, the end of the roof rack and steel frame close to roadway is all provided with filling assembly, the filling assembly includes the concave plate fixedly connected to the end of the roof rack and steel frame close to roadway, the outer portion of the concave plate is equipped with round hole, the inside of the concave plate is movably connected with hose, the inside of the hose is movably connected with round bar, the outside of the round bar is fixedly connected with stop block, the end of the stop block close to hose is fixedly connected with plug.

[0008] Preferably, the connecting frame is fixedly connected between the roof rack and the two steel frames, the number of hoses is multiple, and the end of each stop block away from the concave plate is fixedly connected with spring.

[0009] Preferably, the front and rear ends of the top frame are provided with support assemblies, the support assemblies comprise supports fixedly connected to the outer sides of the two steel frames, frames movably connected between the two supports, and baffles fixedly connected to the inner walls of the frames.

[0010] Preferably, the lower ends of the frames are fixedly connected with mounting seats on both sides, the lower ends of the four mounting seats are movably connected with insertion rods, the front and rear ends of the two supports are provided with sliding grooves, and the sliding grooves are provided with square grooves in the interiors.

[0011] Preferably, the materials of the plurality of hoses are elastic flexible materials, and the plurality of plugs are conical.

[0012] Preferably, the elastic force of the spring is greater than the sum of the gravitational forces of the round rod, the plug and the stopper.

[0013] Preferably, the insertion rod is slidably attached to the interior of the sliding groove, and the insertion rod can penetrate into the interior of the square groove.

[0014] Preferably, the frame can be turned within a range of 0-90 degrees, and the insertion rod can be turned within a range of 0-90 degrees.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. The adjustable support frame for coal mine roadway support can fill the gap and uneven wall in the coal mine roadway when filling is needed between the coal mine roadway and the support frame, so that the gap between the steel frame and the coal mine roadway is avoided, and the supporting effect is effectively enhanced.

[0017] 2. The adjustable support frame for coal mine roadway support can shield the broken rock on the upper end of the coal mine roadway when the support steel frame is installed and fixed, so that the safety and stability of the coal mine roadway are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, without creative labor, the drawings can also be obtained according to the drawings.

[0019] Figure 1 It is the overall structure view of the utility model;

[0020] Figure 2The overall structure view of the concave plate of the utility model;

[0021] Figure 3 The overall structure view of the filling assembly of the utility model;

[0022] Figure 4 The half cut structure schematic view of the support assembly of the utility model.

[0023] Mark explanation:

[0024] 1, top frame; 11, steel frame; 2, connecting frame; 3, filling assembly; 31, concave plate; 311, round hole; 32, hose; 33, round rod; 331, plug; 332, stop block; 34, spring; 4, support assembly; 41, support; 411, sliding groove; 412, square groove; 42, frame; 421, baffle; 43, mounting seat; 431, insertion rod. Specific implementation

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1 to 4 The utility model provides a technical scheme:

[0027] A kind of adjustable support frame for coal mine roadway support, including top frame 1, the left and right ends of the top frame 1 are all fixedly connected with steel frame 11, the top frame 1 and steel frame 11 close to one end of roadway are all provided with filling assembly 3, the filling assembly 3 includes the concave plate 31 fixedly connected to the top frame 1 and steel frame 11 close to one end of roadway, the outside of the concave plate 31 is provided with round hole 311, the inside of the concave plate 31 is movably connected with hose 32, the inside of the hose 32 is movably connected with round rod 33, the outside of the round rod 33 is fixedly connected with stop block 332, the stop block 332 close to one end of hose 32 is fixedly connected with plug 331, the top frame 1 and two steel frames 11 are all fixedly connected with connecting frame 2, the number of the hose 32 is multiple, the end of multiple stop blocks 332 away from the concave plate 31 is all fixedly connected with spring 34, the material of multiple hoses 32 is all elastic flexible material, multiple plugs 331 are all conical, the spring force of spring 34 is greater than the sum of gravity of round rod 33, plug 331 and stop block 332.

[0028] Through adopting the technical scheme, before supporting the coal mine tunnel, firstly, the top frame 1, the steel frame 11 and the connecting frame 2 are screw assembled and welded to form, then the concave plate 31 is correspondingly attached to the top frame 1 and the steel frame 11, so that the exposed end of the hose 32 faces the coal mine tunnel, the concave plate 31 is welded to leave a cavity between the top frame 1 and the steel frame 11, then the sodium silicate water glass slurry is injected into the cavity through the round hole 311, when the slurry passes outside the hose 32, the blocking block 331 blocks the slurry from entering the inside of the hose 32, when the round rod 33 contacts the inner wall protrusion of the coal mine tunnel, the round rod 33 and the blocking block 332 are blocked to compress the spring 34, at this time, the round rod 33 moves with the blocking block 331, at this time, the slurry can flow out through the gap between the blocking block 331 and the hose 32 to fill the uneven wall near the inner wall protrusion of the coal mine tunnel, so that the gap between the steel frame 11 and the coal mine tunnel is avoided, and the supporting effect is effectively enhanced.

[0029] Specifically, as shown in Figure 4 The front and rear ends of the top frame 1 are provided with support assemblies 4, the support assembly 4 comprises a support frame 41 fixedly connected to the outside of the two steel frames 11, a frame 42 movably connected between the two support frames 41, a baffle 421 fixedly connected to the inner wall of the frame 42, a mounting seat 43 fixedly connected to the lower end of the frame 42 on both sides, an insertion rod 431 movably connected to the lower end of the four mounting seats 43, a sliding groove 411 formed in the front and rear ends of the two support frames 41, a square groove 412 formed in the inside of the sliding groove 411, the insertion rod 431 is slidably attached to the inside of the sliding groove 411, and the insertion rod 431 can penetrate into the inside of the square groove 412, and the frame 42 can be turned within a range of 0-90 degrees, and the insertion rod 431 can be turned within a range of 0-90 degrees.

[0030] Through the above technical scheme, before supporting the coal mine tunnel, the baffle 421 can be turned first, so that the insertion rod 431 movably arranged in the mounting seat 43 is naturally vertically downward, then the insertion rod 431 is slid into the square groove 412 through the sliding groove 411, so that the support frame 41, the frame 42 and the insertion rod 431 form a triangular shape, at this time, the raised baffle 421 can block the broken rock at the upper end of the coal mine tunnel, and at the same time, the frame 42 can disperse the pressure borne by the steel frame 11, so that the support assembly 4 can block the broken rock at the upper end of the coal mine tunnel when the steel frame 11 is installed and fixed, thereby improving the safety and stability of the coal mine tunnel.

[0031] Working principle: through the round hole 311 to the cavity inside injection sodium silicate water glass slurry, slurry in after the outside of hose 32, by the block 331 block cannot enter the inside of hose 32, and when the round rod 33 contact coal mine roadway inner wall protrusions, round rod 33 and block 332 are blocked after compression spring 34, at this time round rod 33 moves with block 331 moves, at this time slurry can pass through the gap between block 331 and hose 32 and flow out to fill the coal mine roadway inner wall protrusions nearby, to achieve through filling assembly 3 in the coal mine roadway and support frame need to fill, the device can fill the gap in the coal mine roadway and uneven wall, so as to avoid the steel frame 11 and the coal mine roadway between the gap, and then can effectively enhance the effect of support.

[0032] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An adjustable support frame for coal mine roadway support, comprising a top frame (1), characterized in that: Both left and right ends of the top frame (1) are fixedly connected with steel frames (11), one end of the top frame (1) and the steel frame (11) close to the tunnel is provided with a filling assembly (3), the filling assembly (3) comprises a concave plate (31) fixedly connected to one end of the top frame (1) and the steel frame (11) close to the tunnel, a circular hole (311) is formed in the outer portion of the concave plate (31), a hose (32) is movably connected to the inner portion of the concave plate (31), a circular rod (33) is movably connected to the inner portion of the hose (32), a stop block (332) is fixedly connected to the outer portion of the circular rod (33), one end of the stop block (332) close to the hose (32) is fixedly connected with a plug (331).

2. The adjustable support frame for coal mine roadway support according to claim 1, characterized in that: The top frame (1) and the two steel frames (11) are fixedly connected with connecting frames (2), the number of the hose (32) is multiple, one end of the multiple stop blocks (332) away from the concave plate (31) is fixedly connected with a spring (34).

3. The adjustable support frame for coal mine roadway support according to claim 1, characterized in that: Both front and rear ends of the top frame (1) are provided with a supporting assembly (4), the supporting assembly (4) comprises a support (41) fixedly connected to the outer portion of the two steel frames (11), a frame (42) is movably connected between the two supports (41), a baffle (421) is fixedly connected to the inner wall of the frame (42).

4. The adjustable support frame for coal mine roadway support according to claim 3, characterized in that: Both sides of the lower end of the frame (42) are fixedly connected with mounting seats (43), the lower end of the four mounting seats (43) is movably connected with insertion rods (431), both front and rear ends of the two supports (41) are provided with sliding grooves (411), the inner portion of the sliding groove (411) is provided with a square groove (412).

5. The adjustable support frame for coal mine roadway support according to claim 4, characterized in that: The material of the multiple hoses (32) is elastic flexible material, the multiple plugs (331) are conical.

6. The adjustable support frame for coal mine roadway support according to claim 2, characterized in that: The elastic force of the spring (34) is greater than the sum of the gravity of the circular rod (33), the plug (331) and the stop block (332).

7. The adjustable support frame for coal mine roadway support according to claim 5, characterized in that: The insertion rod (431) is slidably attached to the inner portion of the sliding groove (411), the insertion rod (431) can penetrate into the inner portion of the square groove (412).

8. The adjustable support frame for coal mine roadway support according to claim 4, characterized in that: The frame (42) can be turned over in a range of 0-90 degrees, the insertion rod (431) can be turned over in a range of 0-90 degrees.

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