A roadway support device for mine production with earthquake resistance function

Abstract

The present invention discloses a roadway support device for mine production with earthquake resistance function, which includes: a roof frame; main support columns vertically and symmetrically fixed on both sides of the lower end surface of the roof frame; hydraulic telescopic cylinders correspondingly arranged with each of the main support columns, and the output end of the hydraulic telescopic cylinder is connected to the main support column; an earthquake-resistant support frame configured as an arc structure, and the earthquake-resistant support frame is arranged on the upper end surface of the roof frame; an adjusting and leaning component arranged on the roof frame above the earthquake-resistant support frame, and the adjusting and leaning component can adaptively and fully contact and lean against the inner roof of the mine roadway; and a multi-point shock absorption component, which is a plurality of arranged in a row, and each of the multi-point shock absorption components is vertically fixed on the earthquake-resistant support frame, and one end of the multi-point shock absorption component is connected to the adjusting and leaning component.

Description

Technical Field

[0001] The present invention belongs to the technical field of mine roadway support equipment, and specifically relates to a roadway support device for mine production with earthquake resistance function. Background Art

[0002] At present, the demand for mine excavation is large. Using roadway support underground to keep the roadway unobstructed and the surrounding rock stable is of great significance to coal mine construction and production. At present, in the process of roadway support, the design of the support system is mainly based on static analysis, and does not take into account the tiny vibration shock waves generated during coal mining. Although the bearing capacity of most roadway support systems can meet the support needs, under the continuous action of the tiny vibration shock waves, their impact resistance is not lower than that of medium and above-intensity shock waves. At the same time, the continuous tiny shock waves will also cause the internal support frames to loosen, posing a high safety hazard. Therefore, technical personnel in this field have provided a roadway support device for mine production with earthquake resistance function to solve the problems raised in the above background art. Summary of the Invention

[0003] To achieve the above object, the present invention provides the following technical solution: A roadway support device for mine production with earthquake resistance function, which includes:

[0004] Roof frame;

[0005] Main support columns, vertically and symmetrically fixed on both sides of the lower end surface of the roof frame;

[0006] Hydraulic telescopic cylinders, corresponding to each of the main support columns, and the output ends of the hydraulic telescopic cylinders are connected to the main support columns;

[0007] Seismic support frame, configured as an arc structure, and the seismic support frame is arranged on the upper end surface of the roof frame;

[0008] Adjusting frame contact component, arranged on the roof frame above the seismic support frame, and the adjusting frame contact component can adaptively and fully contact and abut against the inner roof of the mine roadway; and

[0009] Multiple-point shock absorption components, arranged in multiple rows, each of the multiple-point shock absorption components is vertically fixed on the seismic support frame, and one end of each multiple-point shock absorption component is connected to the adjusting frame contact component.

[0010] Further, as a preference, it further includes:

[0011] Adjusting screws, symmetrically arranged on the roof frame and rotatable relatively horizontally;

[0012] The limit guide frame is configured as an inverted L-shaped structure. The limit guide frame is slidably sleeved on each of the adjusting screws through a threaded engagement effect, and an inner sliding member is slidably arranged on the limit guide frame;

[0013] The side springs are multiple and arranged vertically. Each of the side springs is horizontally connected between the limit guide frame and the inner sliding member, and both ends of the seismic support frame are connected to the inner sliding member.

[0014] Further, preferably, the adjusting frame support assembly includes:

[0015] The receiving plate is horizontally suspended above the seismic support frame. The cross-section of the receiving plate is in an arc structure, and its center of circle coincides with the center of circle of the seismic support frame;

[0016] The telescopic guide frames are multiple and arranged. Each of the telescopic guide frames is vertically connected to the receiving plate; and

[0017] The pressing plate is arranged above the receiving plate. The output ends of each of the telescopic guide frames are rotatably connected to the pressing plate, and both the pressing plate and the receiving plate are made of high-elasticity compressive metal materials.

[0018] Further, preferably, the multi-point shock absorption assembly includes:

[0019] The fixed guide shaft is vertically penetrated and fixed on the seismic support frame;

[0020] The side frames are symmetrically distributed around the fixed guide shaft in a circumferential manner. The side frames are all slidably arranged on the seismic support frame, and one end of each of them is connected to the adjusting frame support assembly;

[0021] The inner guide sleeve is slidably sleeved on the fixed guide shaft, and the other end of the side frame is connected to the inner guide sleeve; and

[0022] The discharge boosting device is coaxially arranged inside the fixed guide shaft.

[0023] Further, preferably, it further includes:

[0024] The shaft connecting sleeves are arranged corresponding to each of the side frames. The shaft connecting sleeves are slidably arranged in the inner guide sleeve;

[0025] The outer support springs are vertically and symmetrically connected to the left and right sides of the shaft connecting sleeve, and the other ends of the outer support springs are connected to the inner guide sleeve;

[0026] The center top member is coaxially fixed inside the shaft connecting sleeve. One end of the side frame is slidably arranged inside the shaft connecting sleeve and is connected to the center top member through an inner spring.

[0027] Further, preferably, the discharge boosting device includes:

[0028] A sealed inner tube, fixed below the interior of the fixed guide shaft;

[0029] A movable plug, slidably disposed within the sealed inner tube, with the upper end of the movable plug vertically passing through the sealed inner tube and connected to the inner guide sleeve;

[0030] Drainage pipes, symmetrically and horizontally connected below the sealed inner tube, with each drainage pipe communicating with an adjacent sealed inner tube; and

[0031] A limiting inner ring, coaxially fixed within the sealed inner tube for vertically restricting the displacement and sliding of the movable plug.

[0032] Furthermore, preferably, each of the sealed inner tubes stores flowing oil or pressurized gas.

[0033] Furthermore, preferably, a supplementary supply tank is also connected to the outside of the sealed inner tube.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] 1. In the present invention, the adjusting frame support assembly can adaptively adjust the support posture, thus facilitating the application to roadway supports with different mine roof structures;

[0036] 2. In the present invention, a plurality of multi-point shock-absorbing components are provided below the adjusting frame support assembly. Each multi-point shock-absorbing component can support from corresponding points. When continuous minor vibrations occur during the operation in the mine roadway, at this time, the multi-point shock-absorbing components can perform multi-stage vibration absorption, avoiding the phenomenon of loosening and falling apart of the support main body and improving the use safety;

[0037] 3. In the present invention, especially when the mine roadway is subjected to a huge shock wave, at this time, the corresponding multi-point shock-absorbing components can perform shock mitigation and at the same time, through the drainage and pressurization device, internally support and pressurize the multi-point shock-absorbing components on the left and right sides, enabling the multi-point shock-absorbing components on both sides to form an active top support effect. At the same time, the multi-point shock-absorbing components on both sides can still internally support and pressurize their adjacent multi-point shock-absorbing components to achieve functions such as the dispersion absorption, reflection, and superposition of the support capabilities of shock waves above the intermediate level. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the present invention;

[0039] Figure 2 It is a structural schematic diagram of the earthquake-resistant support frame in the present invention;

[0040] Figure 3 It is a structural schematic diagram of the adjusting frame support assembly in the present invention;

[0041] Figure 4 Structural schematic diagram of the multi-point shock absorption component in the present invention;

[0042] Figure 5 Structural schematic diagram of the discharge and pressurization device in the present invention;

[0043] In the figure: 1 roof plate frame, 2 main support columns, 3 seismic support frame, 31 adjusting screw, 32 limit guide frame, 33 inner sliding part, 34 side spring, 4 adjusting frame leaning component, 41 receiving plate, 42 telescopic guide frame, 43 leaning pressure plate, 5 multi-point shock absorption component, 51 fixed guide shaft, 52 side position frame, 53 inner guide sleeve, 54 shaft connection sleeve, 55 outer support spring, 56 center top piece, 57 inner spring, 6 discharge and pressurization device, 61 sealed inner pipe, 62 movable plug, 63 discharge pipe, 64 limit inner ring. Detailed implementation manners

[0044] Please refer to Figure 1 , in the embodiment of the present invention, a roadway support device for mine production with seismic resistance function, which includes:

[0045] Roof plate frame 1;

[0046] Main support columns 2, vertically and symmetrically fixed on both sides of the lower end surface of the roof plate frame 1;

[0047] Hydraulic telescopic cylinders 21, arranged corresponding to each of the main support columns 2, and the output ends of the hydraulic telescopic cylinders 21 are connected to the main support columns 2;

[0048] Seismic support frame 3, configured as an arc structure, and the seismic support frame 3 is arranged on the upper end surface of the roof plate frame 1; wherein, the roof plate frame, the main support columns, the hydraulic telescopic cylinders and the seismic support frame can form an internal support body of the roadway, and by arranging multiple support bodies in the mine roadway, the seismic support of the mine roadway can be realized, and the spacing range between adjacent support bodies is within the range of 8m - 10m;

[0049] Adjusting frame leaning component 4, arranged on the roof plate frame 1 above the seismic support frame 3, and the adjusting frame leaning component 4 can adaptively and fully contact and lean against the inner roof of the mine roadway; wherein, in the mining of mines in different regions, the inner roof structures of each mine roadway are different. To improve the universality of support use, the adjusting frame leaning component can adaptively adjust and lean against the inner roof of the mine roadway, and

[0050] Multi-point shock absorption components 5, arranged in multiple rows, each of the multi-point shock absorption components 5 is vertically fixed on the seismic support frame 3, and one end of the multi-point shock absorption component 5 is connected to the adjusting frame leaning component 4.

[0051] In this embodiment, it further includes:

[0052] The adjusting screw rod 31 is symmetrically arranged on the top plate frame 1 so as to be relatively rotatable transversely;

[0053] The limiting guide frame 32 is configured in an inverted L-shaped structure. The limiting guide frame 32 is slidably sleeved on each adjusting screw rod 31 through a threaded engagement effect. An inner sliding member 33 is slidably arranged on the limiting guide frame 32;

[0054] The side springs 34 are multiple and arranged vertically. Each side spring 34 is transversely connected between the limiting guide frame 32 and the inner sliding member 33. Both ends of the anti-seismic support frame 3 are respectively connected to the inner sliding member 33. That is to say, the support arc of the anti-seismic support frame can be adjusted through the displacement and sliding effect of the limiting guide frame. Especially when encountering shock waves with an intensity above medium level, the anti-seismic support frame can carry out anti-seismic treatment under elastic deformation. At the same time, the side springs can absorb shock during compression.

[0055] As a preferred embodiment, the adjusting frame component 4 includes:

[0056] The receiving plate 41 is transversely overhead on the upper end of the anti-seismic support frame 3. The cross-section of the receiving plate 41 is in an arc structure, and its center of circle coincides with the center of circle of the anti-seismic support frame 3;

[0057] The telescopic guide frames 42 are multiple and arranged in a row. Each telescopic guide frame 42 is vertically connected to the receiving plate 41; and

[0058] The pressing plate 43 is arranged above the receiving plate 41. The output ends of each telescopic guide frame 42 are rotatably connected to the pressing plate 43. Both the pressing plate 43 and the receiving plate 41 are made of high-elasticity and compression-resistant metal materials. Among them, the elastic deformation strength of the pressing plate is greater than that of the receiving plate, so that the pressing plate can adapt to complex roof structures.

[0059] In this embodiment, the multi-point shock-absorbing component 5 includes:

[0060] The fixed guide shaft 51 is vertically penetrated and fixed on the anti-seismic support frame 3;

[0061] The side frames 52 are symmetrically distributed around the fixed guide shaft 51 in a circumferential manner. The side frames 52 are all slidably arranged on the anti-seismic support frame 3, and one end of each side frame 52 is connected to the adjusting frame component 4;

[0062] The inner guide sleeve 53 is slidably sleeved on the fixed guide shaft 51. The other end of the side frame 52 is connected to the inner guide sleeve 53; and

[0063] The discharge and pressurizing device 6 is coaxially arranged in the fixed guide shaft 51. It should be noted that the side frames should be four or more arranged in a circumferential manner, so as to be able to disperse and absorb shock when shock waves are generated.

[0064] In this embodiment, it further includes:

[0065] An axial connection sleeve 54, which is correspondingly arranged relative to each of the side frames 52, and the axial connection sleeve 54 is slidably arranged in the inner guide sleeve 53;

[0066] An outer support spring 55, which is vertically symmetrically connected to the left and right sides of the axial connection sleeve 54, and the other end of the outer support spring 55 is connected to the inner guide sleeve 53;

[0067] A central top piece 56, which is coaxially fixed inside the axial connection sleeve 54. One end of the side frame 52 is slidably arranged inside the axial connection sleeve 54 and is connected to the central top piece 56 through an inner spring 57. That is to say, when the roadway roof is continuously affected by micro - small shock waves, at this time, the side frame can perform preliminary shock absorption through the inner spring under displacement, and then the outer support spring performs secondary earthquake resistance through elastic compression, having a high shock absorption effect.

[0068] In this embodiment, the discharge and pressurization device 6 includes:

[0069] A sealed inner pipe 61, which is fixed below the inside of the fixed guide shaft 51;

[0070] A movable plug 62, which is slidably arranged inside the sealed inner pipe 61. The upper end of the movable plug 62 vertically penetrates through the sealed inner pipe 61 and is connected to the inner guide sleeve 53;

[0071] Discharge pipes 63, which are horizontally symmetrically connected below the sealed inner pipe 61, and each of the discharge pipes 63 is respectively communicated with the adjacent sealed inner pipe 61; and

[0072] A limiting inner ring 64, which is coaxially fixed inside the sealed inner pipe 61 and is used to vertically limit the displacement and sliding of the movable plug 62. Especially when affected by shock waves of medium and above intensity, at this time, each side frame at the corresponding point can drive the movable plug to perform vertical displacement through the inner guide sleeve, so as to provide support pressure for the discharge and pressurization devices on both adjacent sides, and form an impact reflection effect by its corresponding side frames. When the shock wave inside the top position propagates to the multi - point shock absorption components on both adjacent sides, at this time, the multi - point shock absorption components on both adjacent sides can transmit the support pressure to the original position again to achieve the superposition effect of the support capacity, and so on, with a strong earthquake resistance effect.

[0073] As a preferred embodiment, each of the sealed inner pipes 61 stores a flowing oil body or a pressurized gas. Among them, a flowing source can be specifically adopted according to the conditions such as the internal environmental temperature and humidity of the mine roadway.

[0074] In this embodiment, a supplementary supply tank (not shown in the figure) is also communicated outside the sealed inner pipe 61.

[0075] Specifically, a support main body is formed inside the roadway through a roof support frame, main support columns, hydraulic telescopic cylinders, and seismic support frames. Multiple arranged support main bodies can achieve the support effect on the mine roadway. Among them, each adjustment frame component can be adaptively adjusted respectively so as to fully contact and abut against the roof inside the mine roadway. When dealing with the continuous action of micro-mini shock waves during mining work, the multi-point shock absorption components can perform multi-stage seismic resistance through elastic compression of the inner spring and the outer support spring, having a high shock absorption effect. And when dealing with shock waves of medium and above intensity, while each multi-point shock absorption component can perform shock mitigation, the internal support pressure is increased to the multi-point shock absorption components on the left and right sides through the pumping and pressurizing device, so that the multi-point shock absorption components on both sides can form an active roof support effect. At the same time, when the shock wave propagates to the multi-point shock absorption components on both sides, the support pressure is transmitted back to the original position at this time to achieve the superposition effect of the support capacity.

[0076] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A roadway support device for mine production with earthquake-resistant function, characterized in that: It includes: a top plate frame (1); main support columns (2), vertically and symmetrically fixed on both sides of the lower end face of the top plate frame (1); hydraulic telescopic cylinders (21), provided corresponding to each of the main support columns (2), and the output ends of the hydraulic telescopic cylinders (21) are connected to the main support columns (2); an earthquake-resistant support frame (3), configured in an arc structure, and the earthquake-resistant support frame (3) is arranged on the upper end face of the top plate frame (1); an adjustment frame contact component (4), arranged on the top plate frame (1) above the earthquake-resistant support frame (3), and the adjustment frame contact component (4) can adaptively and fully contact and abut against the inner roof of the mine roadway; and multiple-point shock-absorbing components (5), a plurality of which are arranged in a row, each of the multiple-point shock-absorbing components (5) is vertically fixed on the earthquake-resistant support frame (3), and one end of the multiple-point shock-absorbing component (5) is connected to the adjustment frame contact component (4); The multiple-point shock-absorbing component (5) includes: a fixed guide shaft (51), vertically penetrating and fixed on the earthquake-resistant support frame (3); side frames (52), circumferentially symmetrically distributed outside the fixed guide shaft (51), the side frames (52) are all slidably arranged on the earthquake-resistant support frame (3), and one end of each of them is connected to the adjustment frame contact component (4); an inner guide sleeve (53), slidably sleeved on the fixed guide shaft (51), and the other end of the side frame (52) is connected to the inner guide sleeve (53); and a discharge and pressurization device (6), coaxially arranged inside the fixed guide shaft (51).

2. The roadway support device for mine production with earthquake resistance function according to claim 1, characterized in that: It further includes: adjustment screws (31), symmetrically arranged on the top plate frame (1) to rotate horizontally relative to each other; a limit guide frame (32), configured in an inverted L-shaped structure, the limit guide frame (32) is slidably sleeved on each of the adjustment screws (31) through a threaded engagement, and an inner sliding member (33) is slidably arranged on the limit guide frame (32); side springs (34), a plurality of which are arranged vertically, each of the side springs (34) is horizontally connected between the limit guide frame (32) and the inner sliding member (33), and both ends of the earthquake-resistant support frame (3) are respectively connected to the inner sliding member (33).

3. A roadway support device for mine production with earthquake resistance function according to claim 1, characterized in that: The adjustment frame contact component (4) includes: a receiving plate (41), horizontally suspended above the earthquake-resistant support frame (3), the cross-section of the receiving plate (41) is in an arc structure, and its center of circle coincides with the center of circle of the earthquake-resistant support frame (3); telescopic guide frames (42), a plurality of which are arranged in a row, each of the telescopic guide frames (42) is vertically connected to the receiving plate (41); and a contact pressure plate (43), arranged above the receiving plate (41), the output ends of each of the telescopic guide frames (42) are rotatably connected to the contact pressure plate (43), and both the contact pressure plate (43) and the receiving plate (41) are made of high-elasticity compressive metal materials.

4. A roadway support device for mine production with earthquake resistance function according to claim 1, characterized in that: The multiple-point shock-absorbing component (5) further includes: axial connection sleeves (54), provided corresponding to each of the side frames (52), and the axial connection sleeves (54) are slidably arranged in the inner guide sleeve (53); An external support spring (55) is vertically and symmetrically connected to the left and right sides of the shaft connection sleeve (54), and the other end of the external support spring (55) is connected to the inner guide sleeve (53); A central top piece (56) is coaxially fixed inside the shaft connection sleeve (54). One end of the side frame (52) is slidably arranged inside the shaft connection sleeve (54) and is connected to the central top piece (56) through an inner spring (57).

5. A roadway support device for mine production with earthquake resistance function according to claim 1, characterized in that: The discharge boosting device (6) includes: A sealed inner tube (61) is fixed below the interior of the fixed guide shaft (51); A movable plug (62) is slidably arranged inside the sealed inner tube (61). The upper end of the movable plug (62) vertically penetrates through the sealed inner tube (61) and is connected to the inner guide sleeve (53); Discharge pipes (63) are horizontally and symmetrically connected below the sealed inner tube (61), and each discharge pipe (63) is respectively communicated with the adjacent sealed inner tube (61); and A limit inner ring (64) is coaxially fixed in the sealed inner tube (61) for vertically restricting the displacement and sliding of the movable plug (62).

6. The roadway support device for mine production with earthquake resistance function according to claim 5, characterized in that: Each sealed inner tube (61) stores a flowing oil body or a pressurized gas.

7. A roadway support device for mine production with earthquake resistance function according to claim 6, characterized in that: A supply replenishing tank is also communicated outside the sealed inner tube (61).

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