Shaft sinking supporting device for coal mine

Abstract

The utility model provides a shaft sinking support device for a coal mine, the shaft sinking support device for the coal mine comprises a support base, a support plate assembly and a jet assembly, the support plate assembly is connected with the support base and can move along the height direction of the mine, and the support plate assembly comprises a support driving piece and a support plate, the supporting plate is connected with the supporting driving part, the supporting driving part is used for driving the supporting plate to move in the radial direction of a mine, the supporting plate is provided with a plurality of anchoring holes, the anchoring holes penetrate through the supporting plate in the thickness direction of the supporting plate, the jetting assembly is connected with the base and comprises jetting heads, and the jetting heads can move in the height direction and the radial direction of the mine. The spraying assembly is connected with the concrete tank so that concrete in the concrete tank can be extracted, and the concrete is sprayed to the wall face of the mine through the spraying head. The shaft sinking supporting device for the coal mine has the advantages of being easy to construct and convenient to support.

Description

Technical Field

[0001] The utility model relates to the technical field of mine support, and specifically, to a shaft sinking support device for a coal mine shaft. Background Art

[0002] During the shaft sinking process of a coal mine shaft, due to factors such as formation pressure and vibration during construction, the rock mass around the shaft is prone to deformation and damage, threatening construction safety and project progress. In related technologies, the shaft sinking support devices for coal mine shafts mainly include wooden templates, steel supports, etc. However, these support devices have insufficient support strength and complex construction, and cannot meet the requirements of efficient and safe construction for shaft sinking projects in coal mines. In addition, for shaft sinking support, methods such as concrete shaft walls and grouting reinforcement can also be used for support. However, these methods often require special construction equipment and high construction technical requirements, and there are certain limitations in actual applications. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related technologies to some extent.

[0004] Therefore, an embodiment of the utility model provides a shaft sinking support device for a coal mine shaft, which has the advantages of simple construction and convenient support.

[0005] The shaft sinking support device for a coal mine shaft according to the embodiment of the utility model includes:

[0006] A support base;

[0007] A support plate assembly, the support plate assembly is connected to the support base and is movable along the height direction of the mine shaft. The support plate assembly includes a support driving member and a support plate. The support plate is connected to the support driving member. The support driving member is used to drive the support plate to move radially along the mine shaft. The support plate has a plurality of anchoring holes, and the anchoring holes penetrate through the support plate along the thickness direction of the support plate;

[0008] A spraying assembly, the spraying assembly is connected to the base. The spraying assembly includes a spraying head, and the spraying head is movable along the height direction and the radial direction of the mine shaft. The spraying assembly is connected to a concrete tank so as to be able to extract the concrete in the concrete tank and spray the concrete onto the mine shaft wall surface through the spraying head.

[0009] The shaft sinking support device for coal mine shafts in the embodiments of the present utility model can drive the support plate to move towards the shaft wall surface by means of a support driving member, so that the support plate can abut against the shaft wall surface, thereby playing a support role. Moreover, the support plate assembly can also be moved in the height direction of the shaft, so as to realize support at other positions on the shaft wall surface by using the movement of the support plate assembly.

[0010] In addition, anchoring holes are formed in the support plate. Thus, by using the support function of the support plate, anchoring operations can also be carried out, further improving the support effect on the shaft wall surface, making full preparations for subsequent shotcrete, and reducing the rebound probability of concrete.

[0011] In some embodiments, there are multiple support plate assemblies, and the multiple support plate assemblies are arranged at intervals in the height direction of the shaft.

[0012] In some embodiments, the shaft sinking support device for coal mine shafts in the embodiments of the present utility model further includes a support plate row, the support plate row includes multiple support plate assemblies, there are multiple support plate rows, and the multiple support plate rows are arranged at intervals in the circumferential direction along the center line of the shaft.

[0013] In some embodiments, one side of the support base adjacent to the shaft wall surface is convex arc-shaped, and one side of the support base adjacent to the shaft wall surface is adapted to the shaft wall surface.

[0014] In some embodiments, one side of the support plate adjacent to the shaft wall surface is arc-shaped, and one side of the support plate adjacent to the shaft wall surface is adapted to the shaft wall surface.

[0015] In some embodiments, in the direction from the support base towards the shaft wall surface, the radial dimension of the anchoring hole gradually decreases.

[0016] In some embodiments, the shaft sinking support device for coal mine shafts in the embodiments of the present utility model further includes a reinforcement assembly, the reinforcement assembly is connected to the support base, the reinforcement assembly includes a first reinforcement member, the first reinforcement member includes a first connection portion and a second connection portion, a first end of the first connection portion is connected to the support base and can rotate around a first axis, a first end of the second connection portion is connected to a second end of the first connection portion and can move along the extension direction of the first connection portion, and a second end of the second connection portion is used to abut against the ground.

[0017] In some embodiments, the first reinforcement member further includes a rotating portion, the rotating portion is connected to the second end of the second connection portion, and the rotating portion is rotatable relative to the second connection portion.

[0018] In some embodiments, the reinforcement component further includes a second reinforcement member, which includes a reinforcement driving member and a reinforcement portion. The reinforcement driving member is connected to the reinforcement portion, and the reinforcement driving member is configured to drive the reinforcement portion to move towards the bottom wall of the mine shaft.

[0019] In some embodiments, the radial dimension of the reinforcement portion gradually decreases from top to bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. 9 is a first three-dimensional structural schematic diagram of a shaft sinking support device for a coal mine shaft in an embodiment of the present invention.

[0021] Figure 2 FIG. 13 is a second three-dimensional structural schematic diagram of a shaft sinking support device for a coal mine shaft in an embodiment of the present invention.

[0022] Figure 3 FIG. 17 is a third three-dimensional structural schematic diagram of a shaft sinking support device for a coal mine shaft in an embodiment of the present invention.

[0023] Figure 4 FIG. 21 is a structural schematic diagram of a support plate of a shaft sinking support device for a coal mine shaft in an embodiment of the present invention.

[0024] Figure 5 FIG. 25 is a schematic diagram of the use state of a shaft sinking support device for a coal mine shaft in an embodiment of the present invention.

[0025] REFERENCE NUMERALS:

[0026] 100, mine shaft wall surface,

[0027] 1, support base,

[0028] 2, support plate assembly, 21, support driving member, 22, support plate, 23, anchoring hole,

[0029] 3, spraying assembly,

[0030] 4, reinforcement assembly, 41, first reinforcement member, 411, first connection portion, 412, second connection portion, 413, rotating portion, 42, second reinforcement member, 421, reinforcement driving member, 422, reinforcement portion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0032] As Figures 1-5As shown in the figure, the shaft sinking support device for a coal mine shaft in the embodiment of the present utility model includes: a support base 1, a support plate assembly 2, and a spraying assembly 3.

[0033] The support plate assembly 2 is connected to the support base 1 and is movable along the height direction of the shaft. The support plate assembly 2 includes a support driving member 21 and a support plate 22. The support plate 22 is connected to the support driving member 21. The support driving member 21 is used to drive the support plate 22 to move radially along the shaft. The support plate 22 has a plurality of anchoring holes 23, and the anchoring holes 23 penetrate through the support plate 22 along the thickness direction of the support plate 22. The spraying assembly 3 is connected to the base. The spraying assembly 3 includes a spray head. The spray head is movable along the height direction and the radial direction of the shaft. The spraying assembly 3 is connected to a concrete tank so as to be able to extract the concrete in the concrete tank and spray the concrete onto the shaft wall surface 100 through the spray head.

[0034] Specifically, as Figures 1-3 shown, the support base 1 is used to be placed on the ground of the shaft and is arranged adjacent to the shaft wall surface 100. The support plate assembly 2 is connected to the support base 1 and is movable in the up and down direction so that the support plate assembly 2 can contact different positions of the shaft wall surface 100, thereby realizing the support function. A plurality of anchoring holes 23 are provided on the support plate 22 so that when the support plate assembly 2 performs support, anchoring operations can be carried out through the anchoring holes 23, thereby improving the support effect on the shaft wall surface 100 and preparing for subsequent spraying of concrete.

[0035] It can be understood that the support driving member 21 in the support plate assembly 2 is connected to the support base 1. Among them, the support driving member 21 can be connected to the support base 1 through devices with linear reciprocating functions such as cylinders, oil cylinders, or linear modules to realize the function of the support plate assembly 2 moving in the up and down direction. Similarly, the support driving member 21 can also be connected to the support plate 22 through devices with linear reciprocating functions so that the support driving member 21 can drive the support plate 22 to move in the horizontal direction. Thus, by using the movement of the support driving member 21 in the up and down direction and driving the support plate 22 to move in the horizontal direction, the function of supporting different positions of the shaft wall surface 100 is realized, and the support range of the shaft sinking support device for a coal mine shaft in the embodiment of the present utility model is improved.

[0036] It should be noted that the anchoring holes 23 on the support plate 22 can be determined according to the exploration situation of the shaft wall surface 100, that is, according to the exploration situation of the shaft wall surface 100, targeted anchoring operations can be carried out on the wall surface, such as inclined anchoring, etc., to further ensure the anchoring effect.

[0037] In other words, the shaft sinking support device for a coal mine shaft in the embodiment of the present utility model can drive the support plate 22 to move towards the shaft wall surface 100 by means of the support driving member 21, so that the support plate 22 can abut against the shaft wall surface 100, thereby playing a support role. Moreover, the support plate assembly 2 can also be moved in the height direction of the shaft, so as to realize support at other positions on the shaft wall surface 100 by using the movement of the support plate assembly 2.

[0038] In addition, an anchoring hole 23 is also formed in the support plate 22. Thus, by using the support function of the support plate 22, anchoring operations can also be carried out, further improving the support effect on the shaft wall surface 100, making full preparations for subsequent shotcrete, and reducing the rebound probability of the concrete.

[0039] Preferably, there are multiple support plate assemblies 2, and the multiple support plate assemblies 2 are arranged at intervals in the height direction of the shaft (such as Figure 1 the up and down direction). As Figures 1-3 shown, the multiple support plate assemblies 2 can carry out support at different heights of the shaft, making the support effect of the support plate assembly 2 more flexible. In addition, the support plate assembly 2 can also be adaptively adjusted according to the support working conditions, that is, when anchoring operations need to be carried out, the support plate assembly 2 can be moved to the anchoring area and positioned by using the anchoring hole 23, so that the anchor bolt can quickly complete the anchoring operation; when shotcrete operations need to be carried out, according to the actual working conditions, as Figure 1 and Figure 3 shown, the support plate assembly 2 can be moved to different positions, which can not only ensure the support strength, but also provide an avoidance space for the spraying operation, so as to make full preparations for shotcrete and reduce the rebound probability of the concrete.

[0040] Preferably, the shaft sinking support device for a coal mine shaft in the embodiment of the present utility model further includes a row of support plates 22. The row of support plates 22 includes multiple support plate assemblies 2, and there are multiple rows of support plates 22, which are arranged at intervals in the circumferential direction along the center line of the shaft.

[0041] As Figures 1-3 shown, the multiple rows of support plates 22 are arranged at intervals in the circumferential direction along the outer peripheral wall of the support base 1, so as to increase the support area of the support plate 22. At the same time, by using the moving function of the support plate assembly 2, various support combinations can be changed, so that the shaft sinking support device for a coal mine shaft in the embodiment of the present utility model is applicable to different working conditions.

[0042] Optionally, the side of the support base 1 adjacent to the shaft wall surface 100 is convex arc-shaped, and the side of the support base 1 adjacent to the shaft wall surface 100 is adapted to the shaft wall surface 100. As Figures 1-3As shown, one side of the support base 1 adjacent to the mine wall surface 100 is adapted to the mine wall surface 100, so that the support base 1 can contact the mine wall surface 100 to the greatest extent. This not only facilitates the support of the support plate assembly 2, but also can fix the support base 1 to the mine wall surface 100 with other parts such as pins of a certain length according to the support strength, thereby improving the overall stability of the support base 1.

[0043] Optionally, the side of the support plate 22 adjacent to the mine wall surface 100 is arc-shaped, and the side of the support plate 22 adjacent to the mine wall surface 100 is adapted to the mine wall surface 100. As Figures 1-3 and Figure 5 shown, the side of the support plate 22 adjacent to the mine wall surface 100 is arc-shaped and adapted to the mine wall surface 100. Thus, the support plate 22 and the support base 1 can fit more conveniently with the mine wall surface 100, increasing the contact area during support and improving the support effect.

[0044] In addition, as Figure 5 shown, the shaft sinking support device for a coal mine according to the embodiment of the present invention can also adopt multiple devices for joint support, that is, installing support devices at different positions in the mine to make the overall support effect of the mine better. Of course, according to the different sizes of the mine, different numbers of support devices can be used to meet the support operations under different working conditions.

[0045] Preferably, in the direction from the support base 1 to the mine wall surface 100, the radial dimension of the anchoring hole 23 gradually decreases. As Figure 4 shown, the radial dimension of the anchoring hole 23 gradually decreases in the direction from right to left. That is to say, when carrying out the anchoring operation, if the anchor rod needs to be inclined for anchoring, there is a certain angle between the anchor rod and the anchoring hole 23, and the orifice of the right port of the anchoring hole 23 is larger than the caliber of the left port, so that the anchoring hole 23 can maintain a larger angle range with the anchor rod, and thus is more suitable for the anchoring operation under different working conditions to ensure the support effect.

[0046] In some embodiments, the shaft sinking support device for a coal mine according to the embodiment of the present invention further includes a reinforcement component 4. The reinforcement component 4 is connected to the support base 1. The reinforcement component 4 includes a first reinforcement member 41. The first reinforcement member 41 includes a first connection portion 411 and a second connection portion 412. The first end of the first connection portion 411 is connected to the support base 1 and can rotate around the first axis. The first end of the second connection portion 412 is connected to the second end of the first connection portion 411 and can move along the extension direction of the first connection portion 411. The second end of the second connection portion 412 is used to abut against the ground.

[0047] As Figure 2As shown, the upper end of the first connecting portion 411 (i.e., the first end of the first reinforcing member 41) can be connected to the support base 1 in a hinged manner, enabling the first connecting portion 411 to rotate about the axial direction of the hinge axis (i.e., the first axial direction). The lower end of the first connecting portion 411 is connected to the upper end of the second connecting portion 412. The lower end of the second connecting portion 412 can contact the mine floor, and the second connecting portion 412 can move along the extending direction of the first connecting portion 411, enabling the lower end of the second connecting portion 412 to adjust the contact state with the mine floor.

[0048] It can be understood that the first reinforcing member 41 can be a cylinder, an oil cylinder, etc., and the second connecting portion 412 is the moving shaft of the cylinder, oil cylinder, etc. That is to say, the first connecting portion 411 can change the inclination angle of the first reinforcing member 41. According to different inclination angles, the extending length of the second connecting portion 412 is controlled, so as to ensure that the lower end of the second connecting portion 412 can contact the floor of the mine, thereby playing a role in supporting the support base 1 and ensuring the overall stability of the support base 1.

[0049] In some embodiments, the first reinforcing member 41 further includes a rotating portion 413. The rotating portion 413 is connected to the second end of the second connecting portion 412, and the rotating portion 413 is rotatable relative to the second connecting portion 412.

[0050] As Figure 2 shown, the rotating portion 413 can be connected to the lower end of the second connecting portion 412 by means of a hinge or a ball joint to ensure that the rotating portion 413 can be rotatable relative to the second connecting portion 412. Preferably, as Figure 2 shown, the rotating portion 413 can be hemispherical. The side of the rotating portion 413 adjacent to the mine floor is an arc surface. When the second connecting portion 412 contacts the ground, the contact area between the rotating portion 413 and the ground is larger, and it can also adaptively adjust its own deflection angle according to the unevenness of the ground, so as to better contact the ground and further ensure the overall stability of the support base 1.

[0051] In some embodiments, the reinforcement assembly 4 further includes a second reinforcing member 42. The second reinforcing member 42 includes a reinforcement driving member 421 and a reinforcement portion 422. The reinforcement driving member 421 is connected to the reinforcement portion 422, and the reinforcement driving member 421 is used to drive the reinforcement portion 422 to move towards the bottom wall of the mine.

[0052] Specifically, as Figures 1-3 described, the reinforcement driving frame can drive the reinforcement portion 422 to move in the up and down direction, enabling the lower end of the reinforcement portion 422 to be inserted into the ground or pulled out from the ground.

[0053] It can be understood that the reinforcement driving member 421 can be a device with a linear reciprocating function such as a cylinder, an oil cylinder or a linear module. After the support base 1 is placed on the ground, the reinforcement driving member 421 is started, so that the output part of the reinforcement driving member 421 drives the reinforcement part 422 to move downward from top to bottom, and then the lower end of the reinforcement part 422 is inserted into the ground, thereby realizing the function of reinforcing the support base 1. Conversely, before the support base 1 needs to be moved, the reinforcement driving member 421 is used to drive the reinforcement part 422 to move upward from bottom to top, so that the reinforcement part 422 is pulled out of the ground, thereby facilitating the movement of the self-protection base.

[0054] In some embodiments, the radial dimension of the reinforcement part 422 gradually decreases from top to bottom. It can be understood that, as Figure 1 shown, the diameter of the reinforcement part 422 gradually decreases from top to bottom, so that the reinforcement part 422 is more easily inserted into the ground of the mine under the driving action of the reinforcement driving member 421 to ensure the stability of the support base 1.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0057] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0059] In the present utility model, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0060] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A shaft sinking support device for a coal mine shaft, characterized in that, Comprising: A support base; A support plate assembly, the support plate assembly being connected to the support base and movable in the height direction of the mine. The support plate assembly includes a support driving member and a support plate. The support plate is connected to the support driving member. The support driving member is used to drive the support plate to move radially in the mine. The support plate has a plurality of anchoring holes, and the anchoring holes penetrate through the support plate in the thickness direction of the support plate; A spraying assembly, the spraying assembly being connected to the base. The spraying assembly includes a spray head, and the spray head is movable in the height direction and the radial direction of the mine. The spraying assembly is connected to a concrete tank so as to be able to extract the concrete in the concrete tank and spray the concrete onto the mine wall surface through the spray head.

2. The shaft sinking support device for a coal mine shaft according to claim 1, characterized in that, There are a plurality of the support plate assemblies, and the plurality of support plate assemblies are arranged at intervals in the height direction of the mine.

3. The shaft sinking support device for coal mine shafts according to claim 2, wherein, It further includes a support plate row. The support plate row includes a plurality of the support plate assemblies. There are a plurality of the support plate rows, and the plurality of support plate rows are arranged at intervals in the circumferential direction along the center line of the mine.

4. The shaft sinking support device for coal mine shafts according to claim 3, characterized in that, One side of the support base adjacent to the mine wall surface is convex arc-shaped, and one side of the support base adjacent to the mine wall surface is adapted to the mine wall surface.

5. The shaft sinking support device for a coal mine shaft according to claim 4, characterized in that, One side of the support plate adjacent to the mine wall surface is arc-shaped, and one side of the support plate adjacent to the mine wall surface is adapted to the mine wall surface.

6. The shaft sinking support device for a coal mine shaft according to claim 5, characterized in that, In the direction from the support base to the mine wall surface, the radial dimension of the anchoring hole gradually decreases.

7. The shaft sinking support device for coal mine shafts according to any one of claims 1-6, characterized in that, It further includes a reinforcement assembly. The reinforcement assembly is connected to the support base. The reinforcement assembly includes a first reinforcement member. The first reinforcement member includes a first connection portion and a second connection portion. The first end of the first connection portion is connected to the support base and is rotatable about a first axis. The first end of the second connection portion is connected to the second end of the first connection portion and is movable along the extension direction of the first connection portion. The second end of the second connection portion is used to abut against the ground.

8. The shaft sinking support device for coal mine shafts according to claim 7, characterized in that, The first reinforcement member further includes a rotating portion. The rotating portion is connected to the second end of the second connection portion, and the rotating portion is rotatable relative to the second connection portion.

9. The shaft sinking support device for coal mine shafts according to claim 7, characterized in that, The reinforcement assembly further includes a second reinforcement member. The second reinforcement member includes a reinforcement driving member and a reinforcement portion. The reinforcement driving member is connected to the reinforcement portion. The reinforcement driving member is used to drive the reinforcement portion to move towards the bottom wall of the mine.

10. The shaft sinking support device for a coal mine shaft according to claim 9, characterized in that, The radial dimension of the reinforcement portion gradually decreases from top to bottom.

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