CN220645978U - Close-range coal seam roadway roof supporting device - Google Patents
Close-range coal seam roadway roof supporting device Download PDFInfo
- Publication number
- CN220645978U CN220645978U CN202322210494.3U CN202322210494U CN220645978U CN 220645978 U CN220645978 U CN 220645978U CN 202322210494 U CN202322210494 U CN 202322210494U CN 220645978 U CN220645978 U CN 220645978U
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- hydraulic lifting
- coal seam
- close
- rods
- connecting plate
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- 239000003245 coal Substances 0.000 title claims abstract description 40
- 238000009434 installation Methods 0.000 claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000005065 mining Methods 0.000 abstract description 11
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 239000011435 rock Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The utility model relates to the technical field of coal mining, in particular to a near-distance coal seam roadway roof supporting device which comprises hydraulic lifting rods and supporting beams, wherein the top ends of the hydraulic lifting rods are in threaded installation with the bottom ends of the supporting beams, two foot locking anchor rods are installed at the bottoms of the two hydraulic lifting rods, and the anchor rods are arranged at the top ends of the supporting beams at equal intervals; the device is through being provided with hydraulic lifting rod and connecting plate, when using the bracing beam to support the roof, two hydraulic lifting rods are aimed at the installation through connecting plate one with the connecting plate two of bracing beam bottom, use bolt installation locking connecting hole one with connecting hole two, at this moment hydraulic lifting rod is connected with the bracing beam, and hydraulic lifting rod upwards rises and drives the bracing beam upwards to support the roof, and can dismantle when not using and carry out used repeatedly, easy to assemble.
Description
Technical Field
The utility model relates to the technical field of coal mining, in particular to a near-distance coal seam roadway roof supporting device.
Background
In recent years, as a single coal seam with superior occurrence conditions is gradually exhausted, a plurality of mining areas have to face the difficulty of mining close coal seams, such as a western mining area, a great homomining area, a new venturi mining area, a flat roof mining area, a Huainan mining area and the like, while a close coal seam roadway roof refers to a coal seam rock stratum positioned at the top of a roadway when the coal seam is mined in a coal mine, in the coal mine roadway, the coal seam roof refers to a rock stratum or a roof rock stratum above the coal seam, in the close coal seam roadway, the roof is usually composed of rock, coal gangue or a roadway covering layer, the stability of the roof is critical to the safety and normal operation of the roadway, accidents such as roof collapse, collapse or roof collapse can be caused if the roof is unstable, and threatens the production and personnel safety of the coal mine, so proper supporting and reinforcing measures are required to be adopted to protect the stability of the close coal seam roadway roof in the coal mine roadway mining process;
the existing short-distance coal seam roadway roof supporting devices are inconvenient in the installation process and can be completed by using special tools or performing multiple operations, meanwhile, the devices cannot be reused generally, once installed in place, the devices are difficult to dismantle and reuse, so that labor force and resource waste are caused, and the cost and the workload of coal mining are increased;
secondly, the bearing capacity of the existing close-range coal seam roadway roof supporting device is limited, the requirements of the coal seam roadway in the actual mining process cannot be met, the roof may collapse or collapse, and the safety risk of coal mine workers is increased;
therefore, a new close-range coal seam roadway roof supporting device is provided to solve the problems of inconvenient installation and insufficient bearing capacity in the prior art.
Disclosure of Invention
The utility model aims to provide a near-distance coal seam roadway roof supporting device, which aims to solve the problems of inconvenient installation and insufficient bearing capacity in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the roof supporting device for the close-range coal seam roadway comprises a hydraulic lifting rod and a supporting beam, wherein the top end of the hydraulic lifting rod and the bottom end of the supporting beam are in threaded installation;
two foot locking anchor rods are arranged at the bottoms of the two hydraulic lifting rods, and the anchor rods are arranged at the top ends of the supporting beams in an equidistant mode.
Preferably, two the equal fixed mounting in bottom left and right sides of hydraulic lifting rod has the support fixed block, the support fixed block is the triangle setting, the inside of support fixed block is the fretwork setting, the inside bottom of support fixed block is provided with through-hole and ground fixed support.
Preferably, the top welding of hydraulic lifting rod has connecting plate one, the equal fixed mounting in bottom left and right sides of bracing beam has the connecting block, the bottom fixed mounting of connecting block has connecting plate two, four connecting holes one and connecting hole two have been seted up respectively on connecting plate one and the connecting plate two.
Preferably, the length of the foot locking anchor rod is 2.4m, and the diameter of the foot locking anchor rod is 16mm.
Preferably, the length of the anchor rod is set to be 3.5m, the supporting inclination angle of the anchor rod is 3 degrees, and the distance between the anchor rods is 0.4m.
Preferably, the installation interval between the bracing beams is 1.5m, use the connecting rib to connect between the bracing beams, the connecting rib is vertical installation, the connecting rib is crisscross installation.
Preferably, a reinforcing mesh is arranged between the top end of the bracing beam and the top plate, and the specification of the reinforcing mesh is 30cm x 30cm.
Compared with the prior art, the utility model has the beneficial effects that:
1. this kind of closely coal seam tunnel roof support device through being provided with hydraulic lifting rod and connecting plate, when using the bracing beam to support the roof, two hydraulic lifting rods aim at the installation through connecting plate one with the connecting plate two of bracing beam bottom, use bolt installation locking connecting hole one and connecting hole two, at this moment hydraulic lifting rod is connected with the bracing beam, and hydraulic lifting rod upwards rises and drives the bracing beam upwards to support the roof, and can dismantle when not using and carry out used repeatedly, easy to assemble.
2. Secondly, this kind of closely coal seam tunnel roof support device through being provided with the stock, after the stock atress, forms the compression district in certain limit around, arranges the appropriate mode of stock piece, makes adjacent anchor, and the mutual overlapping of compression district that forms respectively forms the compression area, and the loose stratum in the compression area is consolidated through the stock, and the wholeness reinforcing improves bearing capacity, makes the bearing capacity between roof and the coal seam stronger.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the overall exploded construction of the present utility model;
FIG. 3 is a schematic top view of the bracing beam of the present utility model;
fig. 4 is a schematic view of the structure of the reinforcing mesh of the present utility model;
in the figure: 1. a hydraulic lifting rod; 101. a support fixing block; 102. a first connecting plate; 103. a first connecting hole; 2. supporting beams; 201. a connecting block; 202. a second connecting plate; 203. a second connecting hole; 3. locking the foot anchor rod; 4. a bolt; 5. a connecting rib; 6. a reinforcing mesh.
Detailed Description
Referring to fig. 1-2, in an embodiment of the present utility model;
example 1: the roof supporting device for the close-range coal seam roadway comprises a hydraulic lifting rod 1 and a supporting beam 2, wherein the top end of the hydraulic lifting rod 1 is in threaded installation with the bottom end of the supporting beam 2;
two foot locking anchor rods 3 are arranged at the bottoms of the two hydraulic lifting rods 1, and anchor rods 4 are arranged at the top ends of the supporting beams 2 in an equidistant manner;
the left and right sides of the bottom ends of the two hydraulic lifting rods 1 are fixedly provided with supporting fixed blocks 101, the supporting fixed blocks 101 are arranged in a triangular shape, the inside of each supporting fixed block 101 is hollowed, the bottom end of the inside of each supporting fixed block 101 is provided with a through hole and a ground fixed support, the top ends of the hydraulic lifting rods 1 are welded with a first connecting plate 102, the left and right sides of the bottom ends of the supporting beams 2 are fixedly provided with connecting blocks 201, the bottom ends of the connecting blocks 201 are fixedly provided with a second connecting plate 202, the first connecting plate 102 and the second connecting plate 202 are respectively provided with four first connecting holes 103 and second connecting holes 203, the length of each foot locking anchor rod 3 is 2.4m, and the diameter of each foot locking anchor rod 3 is 16mm;
when using the bracing beam 2 to support the roof, two hydraulic lifting rods 1 are aligned the installation through connecting plate one 102 and connecting plate two 202 of bracing beam 2 bottom, use bolt installation locking connecting hole one 103 and connecting hole two 203, at this moment hydraulic lifting rod 1 is connected with bracing beam 2, hydraulic lifting rod 1 rises upwards and drives bracing beam 2 upwards to support the roof, and can dismantle when not using and carry out repeatedly usable, easy to assemble, the installation is accomplished the back, the support fixed block 101 of bottom carries out fixed spacing with ground, then two lock foot stock 3 and hydraulic lifting rod 1 of 2.4m are beaten into in the both sides of coal seam support region and are carried out fixed connection, stratum or rock mass suffer the exogenic action, take place the deformation of different degrees easily. When the foot locking anchor rod is used, the foot locking anchor rod is connected with the stratum or the rock mass, so that the foot locking anchor rod can be prevented from further deformation, the stability of the stratum or the rock mass is controlled, and the hydraulic upgrading rod 1 is stabilized.
Example 2: as can be seen by referring to fig. 2 to 4 of the specification, embodiment 2 differs from embodiment 1 in that:
the length of the anchor rods 4 is set to be 3.5m, the supporting inclination angle of the anchor rods 4 is 3 degrees, the distance between the anchor rods 4 is 0.4m, the installation distance between the supporting beams 2 is 1.5m, the supporting beams 2 are connected by using connecting ribs 5, the connecting ribs 5 are longitudinally installed, the connecting ribs 5 are installed in a staggered mode, a reinforcing mesh 6 is arranged between the top ends of the supporting beams 2 and the top plate, and the specification of the reinforcing mesh 6 is 30cm x 30cm;
according to the cited foundation, the anchor rods 4 have extrusion reinforcement, after the anchor rods 4 are stressed, compression areas are formed in a certain range around, anchor rod sheets are arranged in a proper mode, the compression areas formed by adjacent anchors 4 are overlapped with each other to form compression bands, loose stratum in the compression bands is reinforced by the anchor rods 4, the integrity is enhanced, the bearing capacity is improved, and the bearing capacity between a top plate and a coal seam is stronger.
Claims (6)
1. The roof supporting device for the close-range coal seam roadway comprises a hydraulic lifting rod (1) and a supporting beam (2), wherein the top end of the hydraulic lifting rod (1) is in threaded installation with the bottom end of the supporting beam (2);
the hydraulic lifting device is characterized in that two foot locking anchor rods (3) are arranged at the bottoms of two hydraulic lifting rods (1), and anchor rods (4) are arranged at the top ends of the supporting beams (2) in an equidistant manner;
the hydraulic lifting device is characterized in that a first connecting plate (102) is welded at the top end of the hydraulic lifting rod (1), connecting blocks (201) are fixedly installed at the left side and the right side of the bottom end of the supporting beam (2), a second connecting plate (202) is fixedly installed at the bottom end of each connecting block (201), and four first connecting holes (103) and second connecting holes (203) are respectively formed in the first connecting plate (102) and the second connecting plate (202).
2. A close-proximity coal seam roadway roof support apparatus as claimed in claim 1, wherein: the hydraulic lifting device comprises two hydraulic lifting rods (1), wherein support fixing blocks (101) are fixedly installed on the left side and the right side of the bottom end of each hydraulic lifting rod, each support fixing block (101) is arranged in a triangular mode, the inside of each support fixing block (101) is hollowed, and through holes are formed in the bottom end of the inside of each support fixing block (101) and fixedly support the ground.
3. A close-proximity coal seam roadway roof support apparatus as claimed in claim 1, wherein: the length of the foot locking anchor rod (3) is 2.4m, and the diameter of the foot locking anchor rod (3) is 16mm.
4. A close-proximity coal seam roadway roof support apparatus as claimed in claim 1, wherein: the length of the anchor rods (4) is set to be 3.5m, the supporting inclination angle of the anchor rods (4) is 3 degrees, and the distance between the anchor rods (4) is 0.4m.
5. A close-proximity coal seam roadway roof support apparatus as claimed in claim 1, wherein: the installation interval between the bracing beams (2) is 1.5m, the bracing beams (2) are connected by using connecting ribs (5), the connecting ribs (5) are longitudinally installed, and the connecting ribs (5) are installed in a staggered mode.
6. A close-proximity coal seam roadway roof support apparatus as claimed in claim 1, wherein: a reinforcing mesh (6) is arranged between the top end of the bracing beam (2) and the top plate, and the specification of the reinforcing mesh (6) is 30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322210494.3U CN220645978U (en) | 2023-08-17 | 2023-08-17 | Close-range coal seam roadway roof supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322210494.3U CN220645978U (en) | 2023-08-17 | 2023-08-17 | Close-range coal seam roadway roof supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220645978U true CN220645978U (en) | 2024-03-22 |
Family
ID=90266162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322210494.3U Active CN220645978U (en) | 2023-08-17 | 2023-08-17 | Close-range coal seam roadway roof supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220645978U (en) |
-
2023
- 2023-08-17 CN CN202322210494.3U patent/CN220645978U/en active Active
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