CN112459812B - Combined single hydraulic prop - Google Patents
Combined single hydraulic prop Download PDFInfo
- Publication number
- CN112459812B CN112459812B CN202011613173.2A CN202011613173A CN112459812B CN 112459812 B CN112459812 B CN 112459812B CN 202011613173 A CN202011613173 A CN 202011613173A CN 112459812 B CN112459812 B CN 112459812B
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- top surface
- sliding block
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- hole
- cylinder
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- 238000003801 milling Methods 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims 3
- 239000003245 coal Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/58—Devices for setting props or chocks
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
- E21D15/545—Details of the ends of props hydraulic or pneumatic
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
- E21D15/55—Details of the ends of props of prop heads or feet
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Actuator (AREA)
Abstract
The invention relates to a combined single hydraulic prop which comprises a base, wherein a plurality of bottom supporting blocks are installed on the base, the upper surfaces of the bottom supporting blocks are provided with column sockets matched with the single props, a single prop is correspondingly installed in each column socket, and adjacent single props are connected together through an anti-falling frame. The invention has the following beneficial effects: the combined single hydraulic prop disclosed by the invention forms a powerful combined supporting force, and the supporting strength is enhanced to the maximum extent. The soft bottom of the coal face is solved, the base is enabled to bear pressure in a balanced manner, and the support is prevented from being inserted into the bottom plate. The installation, adjustment are convenient, are convenient for carry and move. The reliability is improved, the difference of the connection strength among the multiple groups of single hydraulic props is small, the reliability is high, the time required by installation is short, the types of materials required to be carried are few, the carrying is convenient, a large amount of cost and time are saved, and the practicability and the reliability are improved.
Description
Technical Field
The invention relates to a combined single hydraulic prop, and belongs to the technical field of coal face support.
Background
Under the conditions of rock burst mines and large mining depth and thick coal seams, the two crossheading advance support sections are influenced by mining stress during the stoping period of a working face, so that energy accumulation exists, and huge anti-scour potential safety hazards exist. At present, a coal face adopts a one-beam three-column supporting mode, and usually the mode of connecting adjacent single hydraulic supports by using plastic-coated steel wire ropes is adopted to realize the falling prevention of the single hydraulic supports, but the strength of the plastic-coated steel wire ropes is lower, the safety factor of the falling prevention of the single hydraulic supports is low, and the single hydraulic support bodies are more disordered after being tied, so that the falling prevention effect is poorer.
Disclosure of Invention
According to the defects in the prior art, the technical problems to be solved by the invention are as follows: to solve one of the above problems, a combined single hydraulic prop is provided.
The invention relates to a combined single hydraulic prop, which is characterized in that: the base is provided with a plurality of bottom supporting blocks, the upper surfaces of the bottom supporting blocks are provided with column sockets matched with the single support columns, each column socket is correspondingly provided with one single support column, and adjacent single support columns are connected together through an anti-falling frame.
Preferably, the base includes cuboid form cylinder A, top surface rectangular hole A has been seted up along its length direction to cuboid form cylinder A's upper surface, top surface rectangular hole A runs through cuboid form cylinder A's upper and lower surface, just top surface rectangular hole A's both ends do not lead to the head, top surface rectangular hole A's both sides side is provided with side rectangular hole A along its length direction, side rectangular hole A is linked together with top surface rectangular hole A, and side rectangular hole A's both ends do not lead to the head.
Preferably, the bottom supporting block comprises a lower sliding block arranged in the top surface strip hole a in a sliding mode, the upper surface of the lower sliding block is provided with a supporting top plate, the width of the supporting top plate is larger than that of the top surface strip hole a, the lower surface of the supporting top plate is supported on the upper surface of the cuboid cylinder a, two sides of the lower sliding block are respectively provided with at least one limiting pin shaft, the limiting pin shafts penetrate through the side edge strip hole a, and the upper surface of the supporting top plate is provided with a column socket.
Preferably, the number of the limiting pin shafts on one side of the lower sliding block is at least two, the bottom end of each limiting pin shaft is provided with a threaded section, the side surface of the lower sliding block is provided with a threaded hole matched with the threaded section, the threaded section is connected with the lower sliding block through the threaded hole, and the limiting pin shafts are perpendicular to the lower sliding block.
Preferably, the single prop comprises a cylinder body and a piston rod which are connected with each other, the bottom of the cylinder body is located in the column nest, and the top of the piston rod is provided with an oil cylinder top plate.
Preferably, the middle part of the cylinder body is sleeved with a lower anchor ear.
Preferably, the anti-falling frame comprises a cuboid-shaped cylinder B, a top surface strip hole B is formed in the upper surface of the cuboid-shaped cylinder B along the length direction of the upper surface, the top surface strip hole B penetrates through the upper surface and the lower surface of the cuboid-shaped cylinder B, the two ends of the top surface strip hole B are not communicated with the heads, side strip holes B are formed in the two side edges of the cuboid-shaped cylinder B along the length direction of the side strip hole B, the side strip holes B are communicated with the top surface strip holes B, and the two ends of the top surface strip holes B are not communicated with the heads.
Preferably, the anti-falling frame further comprises a rotating sliding block located in the top surface long hole B, two sides of the rotating sliding block are respectively provided with a rotating pin, and the rotating pins penetrate through the side edge long hole B.
Preferably, the bottom end of the rotating pin is provided with a threaded section, the side surface of the rotating slide block is provided with a screw hole matched with the threaded section, the threaded section is connected with the rotating slide block through the screw hole, the rotating pin is perpendicular to the rotating slide block, and the rotating slide block is provided with a central hole for the cylinder body to penetrate through.
Preferably, the processing of the base comprises primary positioning of a cuboid-shaped cylinder A; positioning two side surfaces of the cuboid cylinder A; clamping a cuboid cylinder A; milling a top surface strip hole A and a side edge strip hole A; the base is lifted out.
Compared with the prior art, the invention has the following beneficial effects: the combined single hydraulic prop disclosed by the invention forms a powerful combined supporting force, and the supporting strength is enhanced to the maximum extent.
The soft bottom of the coal face is solved, the base is enabled to bear pressure in a balanced manner, and the support is prevented from being inserted into the bottom plate.
The installation, adjustment are convenient, are convenient for carry and move.
The reliability is improved, the difference of the connection strength among the multiple groups of single hydraulic pillars is small, the reliability is high, the time required for installation is short, the types of materials required to be carried are few, the carrying is convenient, a large amount of cost and time are saved, and the practicability and the reliability are improved.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic structural view of a rectangular parallelepiped pillar A according to the present invention;
FIG. 3 is a schematic structural view of a rectangular parallelepiped pillar B according to the present invention;
FIG. 4 is a schematic structural view of a single prop according to the present invention;
FIG. 5 is a schematic view of the construction of the top support plate of the present invention;
fig. 6 is a schematic structural diagram of the rotating slider of the present invention.
In the figure: 1. the device comprises a base 2, a bottom supporting block 3, a single support column 4, a rectangular cylinder A5, a top surface strip hole A6, a side edge strip hole A7, a lower sliding block 8, a supporting top plate 9, a limiting pin shaft 10, a cylinder nest 11, a cylinder body 12, a piston rod 13, an oil cylinder top plate 14, a lower hoop 15, a rectangular cylinder B16, a top surface strip hole B17, a side edge strip hole B18, a rotating sliding block 19, a rotating pin 20 and a central hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
the present invention is further illustrated by the following specific examples, which are not intended to limit the scope of the invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Examples
As shown in fig. 1-6, the combined single hydraulic prop comprises a base 1, wherein a plurality of bottom supporting blocks 2 are installed on the base 1, column sockets matched with the single props 3 are formed in the upper surfaces of the bottom supporting blocks 2, a single prop 3 is correspondingly installed in each column socket, and adjacent single props 3 are connected together through an anti-falling frame.
In this embodiment, the base 1 includes a rectangular parallelepiped cylinder A4, the upper surface of the rectangular parallelepiped cylinder A4 is provided with a top surface strip hole A5 along the length direction thereof, the top surface strip hole A5 penetrates through the upper and lower surfaces of the rectangular parallelepiped cylinder A4, and two ends of the top surface strip hole A5 are not open, two side edges of the top surface strip hole A5 are provided with a side edge strip hole A6 along the length direction thereof, the side edge strip hole A6 is communicated with the top surface strip hole A5, and two ends of the side edge strip hole A6 are not open; the bottom supporting block 2 comprises a lower sliding block 7 arranged in a top surface strip hole A5 in a sliding mode, a supporting top plate 8 is arranged on the upper surface of the lower sliding block 7, the width of the supporting top plate 8 is larger than that of the top surface strip hole A5, the lower surface of the supporting top plate 8 is supported on the upper surface of a cuboid-shaped column body A4, at least one limiting pin shaft 9 is respectively arranged on two sides of the lower sliding block 7, the limiting pin shafts 9 penetrate through the side edge strip holes A6, and a column nest 10 is arranged on the upper surface of the supporting top plate 8; at least two limiting pin shafts 9 are arranged on one side of the lower slider 7, a threaded section is arranged at the bottom end of each limiting pin shaft 9, a screw hole matched with the threaded section is formed in the side surface of the lower slider 7, the threaded section is connected with the lower slider 7 through the screw hole, and the limiting pin shafts 9 are perpendicular to the lower slider 7; the single prop 3 comprises a cylinder body 11 and a piston rod 12 which are connected with each other, the bottom of the cylinder body 11 is positioned in the pole socket 10, and the top of the piston rod 12 is provided with an oil cylinder top plate 13; the middle part of the cylinder body 11 is sleeved with a lower anchor ear 14; the anti-falling frame comprises a cuboid cylinder B15, a top surface strip hole B16 is formed in the upper surface of the cuboid cylinder B15 along the length direction of the upper surface strip hole B16, the top surface strip hole B16 penetrates through the upper surface and the lower surface of the cuboid cylinder B15, two ends of the top surface strip hole B16 are not communicated with the heads, side edges of two sides of the cuboid cylinder B15 are provided with side strip holes B17 along the length direction of the side edge strip hole B17, the side strip holes B17 are communicated with the top surface strip hole B16, and two ends of the top surface strip hole B16 are not communicated with the heads; the anti-falling frame further comprises a rotating slide block 18 positioned in the top surface long hole B16, two sides of the rotating slide block 18 are respectively provided with a rotating pin 19, and the rotating pins 19 penetrate through the side edge long holes B17; the bottom end of the rotating pin 19 is provided with a threaded section, the side surface of the rotating slide block 18 is provided with a screw hole matched with the threaded section, the threaded section is connected with the rotating slide block 18 through the screw hole, the rotating pin 19 is vertical to the rotating slide block 18, and the rotating slide block 18 is provided with a central hole 20 for the cylinder body 11 to penetrate through; the processing of the base 1 comprises primary positioning of a cuboid-shaped cylinder A4; positioning two side surfaces of a cuboid cylinder A4; clamping a cuboid cylinder A4; milling a top surface strip hole A5 and a side edge strip hole A6; the base 1 is lifted out.
During operation, the lower slider 7 is arranged in the top surface strip hole A5, the limit pin shaft 9 penetrates through the side edge strip hole A6 to be connected with the lower slider 7, the lower slider 7 can slide along the length direction of the cuboid cylinder A4, the cylinder body 11 is respectively provided with a lower hoop 14 and a rotating slider 18, the rotating slider 18 is arranged in the top surface strip hole B16, the rotating pin 19 penetrates through the side edge strip hole B17 to be connected with the rotating slider 18, the rotating slider 18 can slide up and down on the cylinder body 11, the rotating slider 18 can also rotate relative to the cuboid cylinder B15, and the bottom of the cylinder body 11 is arranged in the column nest 10.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A modular hydraulic prop which is characterized in that: the anti-falling device comprises a base, wherein a plurality of bottom supporting blocks are arranged on the base, column sockets matched with monomer pillars are arranged on the upper surfaces of the bottom supporting blocks, a monomer pillar is correspondingly arranged in each column socket, adjacent monomer pillars are connected together through an anti-falling frame, the base comprises a cuboid cylinder A, a top surface long hole A is formed in the upper surface of the cuboid cylinder A along the length direction of the cuboid cylinder A, the top surface long hole A penetrates through the upper surface and the lower surface of the cuboid cylinder A, the two ends of the top surface long hole A are not communicated with each other, side edges of the two sides of the top surface long hole A are provided with side edge long holes A along the length direction of the top surface long hole A, the side edge long hole A is communicated with the top surface long hole A, the two ends of the side edge long hole A are not communicated with each other, the bottom supporting blocks comprise lower sliding blocks which are arranged in the top surface long holes A in a sliding mode, the upper surface of the lower sliding block is provided with a supporting top plate, the width of the supporting top plate is larger than that of the top surface strip hole A, the lower surface of the supporting top plate is supported on the upper surface of the cuboid cylinder A, at least one limiting pin shaft is respectively arranged on two sides of the lower sliding block and penetrates through the side edge strip hole A, the upper surface of the supporting top plate is provided with a cylindrical pit, at least two limiting pin shafts on one side of the lower sliding block are arranged, the bottom end of each limiting pin shaft is provided with a threaded section, the side surface of the lower sliding block is provided with a screw hole matched with the threaded section, the threaded section is connected with the lower sliding block through the screw hole, the limiting pin shaft is perpendicular to the lower sliding block, the single support column comprises a cylinder body and a piston rod which are connected with each other, the bottom of the cylinder body is positioned in the cylindrical pit, the top of the piston rod is provided with an oil cylinder top plate, and the anti-falling frame comprises a cuboid cylinder B, the upper surface of the cuboid cylinder B is provided with a top surface strip hole B along the length direction, the top surface strip hole B penetrates through the upper surface and the lower surface of the cuboid cylinder B, the two ends of the top surface strip hole B are not communicated, two side edges of the cuboid cylinder B are provided with side edge strip holes B along the length direction, the side edge strip holes B are communicated with the top surface strip holes B, the two ends of the top surface strip holes B are not communicated, the anti-falling frame further comprises a rotating sliding block located in the top surface strip holes B, two sides of the rotating sliding block are respectively provided with a rotating pin, the rotating pins penetrate through the side edge strip holes B, during operation, the lower sliding block is installed in the top surface strip holes A, a limiting pin shaft penetrates through the side edge strip holes A to be connected with the lower sliding block, the lower sliding block can slide along the length direction of the cuboid cylinder A, a hoop and a rotating sliding block are respectively installed on the cylinder body, the rotating sliding block is installed in the top surface strip holes B, the rotating pin penetrates through the side edge strip holes B to be connected with the rotating sliding block, the rotating sliding block can rotate up and rotate on the upper surface of the sliding block, and can also rotate the bottom of the cuboid cylinder body relatively.
2. The modular hydraulic strut of claim 1, further comprising: the middle part cover of cylinder body is equipped with down the staple bolt.
3. The modular hydraulic strut of claim 2, further comprising: the bottom of the rotating pin is provided with a threaded section, the side surface of the rotating slide block is provided with a screw hole matched with the threaded section, the threaded section is connected with the rotating slide block through the screw hole, the rotating pin is vertical to the rotating slide block, and the rotating slide block is provided with a central hole for the cylinder body to penetrate through.
4. The modular hydraulic strut of claim 3, further comprising: the processing of the base comprises the primary positioning of a cuboid cylinder A; positioning two side surfaces of a cuboid cylinder A; clamping a cuboid cylinder A; milling a top surface strip hole A and a side edge strip hole A; the base is lifted out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011613173.2A CN112459812B (en) | 2020-12-31 | 2020-12-31 | Combined single hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011613173.2A CN112459812B (en) | 2020-12-31 | 2020-12-31 | Combined single hydraulic prop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112459812A CN112459812A (en) | 2021-03-09 |
| CN112459812B true CN112459812B (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011613173.2A Active CN112459812B (en) | 2020-12-31 | 2020-12-31 | Combined single hydraulic prop |
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| Country | Link |
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| CN (1) | CN112459812B (en) |
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| AU2008201783A1 (en) * | 2008-04-23 | 2009-11-12 | Alminco Pty Ltd | Temporary roof support device and method |
| CN101936172B (en) * | 2010-08-06 | 2012-06-27 | 中国矿业大学 | Governance method of floor heave of mine roadway during mining |
| CN202483595U (en) * | 2012-03-19 | 2012-10-10 | 北京天地华泰采矿工程技术有限公司 | Linked toppling-preventive device of single hydraulic props |
| CN204668373U (en) * | 2015-04-22 | 2015-09-23 | 上海电力学院 | A kind of adjustable battery fixed insulation case |
| CN204646276U (en) * | 2015-05-26 | 2015-09-16 | 陕西华彬煤业股份有限公司 | A kind of supplemental support seat of hydraulic prop |
| CN205154197U (en) * | 2015-10-27 | 2016-04-13 | 鄂尔多斯市中北煤化工有限公司 | Hydraulic pressure monomer pillar interlocking tilting prevention device |
| CN205349380U (en) * | 2016-02-03 | 2016-06-29 | 山西古县老母坡煤业有限公司 | Prevent whole crest truncation support of gob entry pucking |
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| CN106837393B (en) * | 2017-04-07 | 2019-05-21 | 兖州煤业股份有限公司 | Hydraulic prop flexible articulation interlocks tilting prevention device |
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| CN107143363B (en) * | 2017-07-17 | 2023-03-28 | 平顶山平煤机煤矿机械装备有限公司 | Transversely-arranged air duct advanced support group for stable support |
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2020
- 2020-12-31 CN CN202011613173.2A patent/CN112459812B/en active Active
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| CN112459812A (en) | 2021-03-09 |
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