Supporting structure of coal mining channel

Abstract

The utility model discloses a supporting structure of a coal mining channel, which belongs to the technical field of coal mining supporting, a vertical rod, a first inclined rod and a second inclined rod are fixedly welded at the bottom of a supporting steel plate, the first inclined rod and the second inclined rod are symmetrical, a reinforcing block is fixedly welded at one end of the vertical rod, one end of the first inclined rod and one end of the second inclined rod, and a supporting seat is fixedly connected at the bottom of the reinforcing block. A first supporting arm and a second supporting arm which are axially symmetrical are arranged at the two ends of the supporting seat, and supporting beams are inserted into the other ends of the first supporting arm and the second supporting arm correspondingly. According to the supporting structure of the coal mining channel, through the arranged supporting beams and limiting grooves, a supporting steel plate can be rapidly positioned and then is fixedly connected with an inclined rod and a vertical rod; the supporting efficiency is greatly improved, the supporting height and the supporting width of the supporting steel plate are conveniently adjusted through the hydraulic column arranged at one end of the supporting column, the first supporting arm and the second supporting arm, and the use flexibility of the supporting structure is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining support, and more specifically, to a support structure for a coal mining passage. Background Art

[0002] During the coal mining process, reinforcement devices are used to support the excavation channel to prevent collapse. However, the top steel plate of the support structure device is not easy to position and assemble during use, which reduces the support efficiency. At the same time, it is not convenient to adjust the support height and width, which reduces the flexibility of the support structure device.

[0003] For example, the new type of coal mining excavation channel reinforcement device disclosed in announcement number CN220395728U includes a square frame, a sleeve is fixed on the surface of the square frame, a telescopic rod is inserted into the sleeve, a recess is clamped on the surface of the telescopic rod, a cross-arch rod is fixed on the surface of the recess, a support rod is fixed on the inner side of the cross-arch rod, a first support seat is fixed on the surface of the sleeve, a second support seat is fixed on the outer surface of the telescopic rod, and a hydraulic cylinder is fixed on the lower surface of the first support seat.

[0004] It can be seen from the above-mentioned public scheme that the bottom surface of the arched color steel plate is connected and fixed to the surface of the cross arched rod, and the cross arched rod is composed of a plurality of connecting rods. The connection and fixation are relatively cumbersome and time-consuming, which reduces the assembly and support efficiency of the arched color steel plate. In addition, the support width of the arched color steel plate cannot be adjusted after installation. When the width of the mining channel is different, it may not be possible to adjust the support according to actual needs, which reduces its flexibility of use. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a support structure for a coal mining channel. The support structure for the coal mining channel can quickly position the support steel plate through the support beams and limit grooves, and then connect and fix it with the diagonal rods and vertical rods, thereby greatly improving the support efficiency. In addition, the hydraulic column arranged at one end of the support column and the first support arm and the second support arm can facilitate the adjustment of the support height and support width of the support steel plate, thereby greatly improving the flexibility of use of the support structure.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] The support structure of a coal mining channel comprises a support steel plate, wherein a vertical rod and a symmetrical first oblique rod and a second oblique rod are fixedly welded at the bottom of the support steel plate, and a reinforcing block is fixedly welded at one end of the vertical rod, the first oblique rod and the second oblique rod, and the bottom of the reinforcing block is fixedly connected to a support seat, and two ends of the support seat are provided with an axially symmetrical first support arm and a second support arm, and the other ends of the first support arm and the second support arm are respectively inserted with a support beam, and a support column is provided at the bottom of the support beam, and a hydraulic column is provided at one end of the support column, and the other end of the support column is fixedly connected to a bottom plate, and a pad is fastened to the bottom of the bottom plate by bolts. The support structure of the coal mining channel can quickly position the support steel plate through the provided support beam and limit groove, and then connect and fix it with the oblique rod and the vertical rod, thereby greatly improving the support efficiency, and through the hydraulic column provided at one end of the support column and the first support arm and the second support arm, it is convenient to adjust the support height and support width of the support steel plate, thereby greatly improving the use flexibility of the support structure.

[0008] Furthermore, inclined surfaces are provided on both sides of the reinforcement block, and grooves are provided on the surfaces of the inclined surfaces. The inner walls of the two grooves are respectively in contact and connected with the end faces of the first oblique rod and the second oblique rod. An anti-slip groove is provided at the center position of the reinforcement block, and the inner wall of the anti-slip groove is in contact and connected with one end of the vertical rod. The grooves provided in the reinforcement block facilitate the positioning of the vertical rod and one end of the two oblique rods, and facilitate welding after positioning.

[0009] Furthermore, the bottom surface of the supporting steel plate is respectively provided with a central groove and symmetrical oblique grooves, and the inner walls of the symmetrical oblique grooves are respectively contacted and connected with the end faces of the first oblique rod and the second oblique rod, and the inner wall of the central groove is contacted and connected with one end of the vertical rod. The central groove and oblique grooves provided in the supporting steel plate facilitate the positioning of the vertical rod and one end of the two oblique rods, and are convenient for welding after positioning.

[0010] Furthermore, the surfaces of the first support arm and the second support arm are threadedly connected with a first limit sleeve and a second limit sleeve, both of which are polygonal, and the first limit sleeve and the second limit sleeve can adjust the spacing size, thereby adjusting the support length of the support arm.

[0011] Furthermore, one end of the support seat is provided with an axially penetrating weight-reducing hole, and the inner walls at both ends of the weight-reducing hole are respectively slidably connected with one end of the first support arm and the second support arm. The weight-reducing hole is not only convenient for weight reduction, but also for storing one end of the first support arm and the second support arm.

[0012] Furthermore, a limiting groove is provided on the surface of the support beam, and the outer surface of the support beam is in contact and extrusion with the inner wall of the coal mining channel. The limiting groove can prevent the two ends of the support steel plate from shrinking inward.

[0013] Furthermore, a positioning hole is provided on the side of the support beam to facilitate the positioning of the support beam and one end of the support arm.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) This scheme can quickly position the support steel plate by setting the support beam and limit groove, and then connect and fix it with the diagonal rod and vertical rod, which greatly improves the support efficiency.

[0016] (2) This solution facilitates the adjustment of the support height and support width of the support steel plate by means of a hydraulic column and a first support arm and a second support arm arranged at one end of the support column, thereby greatly improving the flexibility of use of the support structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 It is a front view of the overall structure of the utility model;

[0019] Figure 3 for Figure 2 A magnified view of part A;

[0020] Figure 4 for Figure 2 Cross-sectional view of the support seat.

[0021] Description of the numbers in the figure:

[0022] 1 supporting steel plate, 2 supporting beam, 21 positioning hole, 22 limiting groove, 23 supporting column, 24 bottom plate, 3 cushion block, 4 supporting seat, 41 reinforcing block, 42 ​​weight reduction hole, 43 vertical rod, 44 first diagonal rod, 45 second diagonal rod, 5 first supporting arm, 51 first limiting sleeve, 52 second limiting sleeve, 6 second supporting arm. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] See also Figure 1-4A support structure for a coal mining channel comprises a support steel plate 1, a vertical rod 43 and a symmetrical first oblique rod 44 and a second oblique rod 45 are fixedly welded at the bottom of the support steel plate 1, a reinforcing block 41 is fixedly welded at one end of the vertical rod 43, the first oblique rod 44 and the second oblique rod 45, a support seat 4 is fixedly connected to the bottom of the reinforcing block 41, and an axially symmetrical first support arm 5 and a second support arm 6 are arranged at both ends of the support seat 4, and the telescopic position of the two ends of the first support arm 5 and the second support arm 6 is adjusted by rotating two limit sleeves, thereby increasing the total length of the two first support arms 5 and the second support arms 6, thereby adjusting the support width of the support steel plate 1, the first support arm 5 and the second support arm The other end of 6 is respectively connected with a supporting beam 2, and a limiting groove 22 is provided on the surface of the supporting beam 2. The outer surface of the supporting beam 2 is in contact and extruded with the inner wall of the coal mining channel. The limiting groove 22 can prevent the two ends of the supporting steel plate 1 from shrinking inward. A positioning hole 21 is provided on the side of the supporting beam 2 to facilitate the positioning of the supporting beam 2 and one end of the supporting arm. A supporting column 23 is provided at the bottom of the supporting beam 2, and a hydraulic column is provided at one end of the supporting column 23. The hydraulic column can be retracted and retracted, which belongs to the prior art, thereby adjusting the height position of the supporting steel plate 1. The other end of the supporting column 23 is fixedly connected with a bottom plate 24, and a pad 3 is fastened to the bottom of the bottom plate 24 by bolts. The pad 3 can increase the bottom support strength.

[0026] Bevels are provided on both sides of the reinforcing block 41, and grooves are provided on the surfaces of the bevels, and the inner walls of the two grooves are respectively in contact with the end faces of the first diagonal rod 44 and the second diagonal rod 45. An anti-slip groove is provided at the center of the reinforcing block 41, and the inner wall of the anti-slip groove is in contact with one end of the vertical rod 43. The grooves set in the reinforcing block 41 are convenient for positioning the vertical rod 43 and one end of the two diagonal rods, and convenient for welding after positioning. A center groove and symmetrical bevel grooves are respectively provided on the bottom surface of the supporting steel plate 1, and the inner walls of the symmetrical bevel grooves are respectively in contact with the end faces of the first diagonal rod 44 and the second diagonal rod 45, and the inner wall of the center groove is in contact with one end of the vertical rod 43. The center groove and bevel groove set in the supporting steel plate 1 are convenient for positioning the vertical rod 43 and one end of the two diagonal rods, and convenient for welding after positioning.

[0027] The surfaces of the first support arm 5 and the second support arm 6 are connected with the first limit sleeve 51 and the second limit sleeve 52 by threads. The first limit sleeve 51 and the second limit sleeve 52 are both polygonal. The first limit sleeve 51 and the second limit sleeve 52 can adjust the spacing size, and then adjust the supporting length of the support arm. One end of the support seat 4 is provided with an axially penetrating weight-reducing hole 42. The inner walls at both ends of the weight-reducing hole 42 are respectively slidably connected with one end of the first support arm 5 and the second support arm 6. The weight-reducing hole 42 is not only convenient for weight reduction, but also convenient for the storage of one end of the first support arm 5 and the second support arm 6.

[0028] When constructing the support structure of the coal mining channel, the support beams 2 are first spliced, and then fastened to the cushion block 3 through the bottom base plate 24 of the support column 23, and then the two ends of the support steel plate 1 are clamped in the limit grooves 22 of the two support beams 2, and then one end of the first support arm 5 and the second support arm 6 are respectively inserted into the positioning holes 21 on the side of the support beam 2, and then the vertical rod 43 and the two oblique rods are respectively plugged and positioned with the reinforcement block 41 and the support steel plate 1, and then the total length of the two support arms is adjusted by rotating the second limit sleeve 52 clockwise, so that the two sides of the support steel plate 1 are in contact with the inner wall of the channel, and then the support beam 2 and the support steel plate 1 are lifted upward by the hydraulic column of the support column 23, so that the support steel plate 1 The top of the support steel plate 1 is in contact with and extruded from the top of the inner wall of the channel, and then the second limiting sleeve 52 is continued to be rotated clockwise to make the support arm continue to lengthen, thereby making the two sides of the support steel plate 1 in contact with and extruded from the inner wall of the channel side, and then the two ends of the positioned vertical rod 43, the first oblique rod 44 and the second oblique rod 45 are welded and fixed. By means of the set support beam 2 and the limiting groove 22, the support steel plate 1 can be quickly positioned, and then connected and fixed with the oblique rod and the vertical rod 43, which greatly improves the support efficiency, and by means of the hydraulic column set at one end of the support column 23 and the first support arm 5 and the second support arm 6, it is convenient to adjust the support height and support width of the support steel plate 1, which greatly improves the flexibility of use of the support structure.

[0029] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A support structure for a coal mining passage, comprising a support steel plate (1), characterized in that: A vertical rod (43) and a symmetrical first diagonal rod (44) and a second diagonal rod (45) are fixedly welded to the bottom of the support steel plate (1); one end of the vertical rod (43), the first diagonal rod (44) and the second diagonal rod (45) are fixedly welded to a reinforcement block (41); the bottom of the reinforcement block (41) is fixedly connected to a support seat (4); two ends of the support seat (4) are provided with an axially symmetrical first support arm (5) and a second support arm (6); the other ends of the first support arm (5) and the second support arm (6) are respectively plugged with a support beam (2); a support column (23) is provided at the bottom of the support beam (2); one end of the support column (23) is provided with a hydraulic column; the other end of the support column (23) is fixedly connected to a bottom plate (24); the bottom of the bottom plate (24) is fastened with a pad (3) by bolts.

2. A support structure for a coal mining passage according to claim 1, characterized in that: The reinforcing block (41) is provided with inclined surfaces on both sides, and the surfaces of the inclined surfaces are provided with grooves, the inner walls of the two grooves are respectively in contact with and connected to the end surfaces of the first inclined rod (44) and the second inclined rod (45), and the center position of the reinforcing block (41) is provided with an anti-slip groove, and the inner wall of the anti-slip groove is in contact with and connected to one end of the vertical rod (43).

3. A supporting structure for a coal mining passage according to claim 1, characterized in that: The bottom surface of the supporting steel plate (1) is respectively provided with a central groove and symmetrical oblique grooves, and the inner walls of the symmetrical oblique grooves are respectively in contact with the end surfaces of the first oblique rod (44) and the second oblique rod (45), and the inner wall of the central groove is in contact with one end of the vertical rod (43).

4. A support structure for a coal mining passage according to claim 1, characterized in that: The surfaces of the first support arm (5) and the second support arm (6) are connected with a first limiting sleeve (51) and a second limiting sleeve (52) via threads, and the first limiting sleeve (51) and the second limiting sleeve (52) are both polygonal.

5. A supporting structure for a coal mining passage according to claim 1, characterized in that: One end of the support seat (4) is provided with a weight-reducing hole (42) which penetrates axially, and the inner walls at both ends of the weight-reducing hole (42) are respectively slidably sleeved with one end of the first support arm (5) and one end of the second support arm (6).

6. A supporting structure for a coal mining passage according to claim 1, characterized in that: The surface of the support beam (2) is provided with a limiting groove (22), and the outer surface of the support beam (2) is in contact and extrusion with the inner wall of the coal mining channel.

7. A supporting structure for a coal mining passage according to claim 1, characterized in that: A positioning hole (21) is provided on the side of the support beam (2).

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