CN213775420U - Non-pillar mining through-airway hydraulic support jacking device - Google Patents
Non-pillar mining through-airway hydraulic support jacking device Download PDFInfo
- Publication number
- CN213775420U CN213775420U CN202022634004.9U CN202022634004U CN213775420U CN 213775420 U CN213775420 U CN 213775420U CN 202022634004 U CN202022634004 U CN 202022634004U CN 213775420 U CN213775420 U CN 213775420U
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- coal
- base
- hydraulic support
- pillar
- chain
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Abstract
The utility model discloses a no coal pillar back-cut crosses empty lane hydraulic support and connects top device belongs to mine support and connects top device technical field. The utility model discloses a fix two fixed stock on the coal rock body, the connecting piece is installed to the end that stretches out of fixed stock, is connected with the connecting link on the connecting piece, and the other end of two connecting links is connected on a base, is equipped with two confessions on the base the through-hole that the connecting link passed, the connecting link penetrates the mounting in stretching out the chain ring of the one end of through-hole, and the both ends of mounting are stretched out and are blocked the through-hole handle the connecting link is fixed on the base, the space packing between coal rock body and the base has the multilayer to connect a plank. The utility model is used for when the working face does not have the coal pillar extraction, because the tunnel is arranged along the coal seam roof and the working face is along the exploitation of end caving coal and is caused hydraulic support not to meet the top to cause the condition of empty top.
Description
Technical Field
The utility model relates to a no coal pillar back mining crosses empty lane support and connects top device belongs to mine support and connects top device technical field.
Background
In the existing non-coal-pillar stoping process, the most common way of passing through the empty roadway mainly adopts the main ways of directly passing through, floating through a cutter, filling high-water materials and the like. Wherein, the direct passing can cause the production safety problems of large-area empty roof, gas accumulation and the like; the coal yield of the working face is reduced due to the fact that the floating cutter passes through the floating cutter, the coal which is collected less can cause warp counting loss, and meanwhile, potential safety hazards exist to a certain degree; the filling of high-water materials is safer, but the high-water materials are higher in price on the one hand, and a matched machine and a plugging technology are needed, so that the large-scale use of the roadway is not facilitated.
Disclosure of Invention
In order to overcome the weak point of above-mentioned prior art, the utility model provides a no coal pillar stope empty lane hydraulic support connects top device is a hydraulic support that more simple, economy, safety, can be applicable to and combine to adopt working face no coal pillar stope empty lane to connect top device.
The utility model discloses a realize through following technical scheme: the utility model provides a no coal pillar mining crosses empty lane hydraulic support and connects a device, is including fixing two fixed stock on the coal rock mass, and the connecting piece is installed to the end that stretches out of every fixed stock, is connected with the connecting link on the connecting piece, and the other end of two connecting links is connected on a base, is equipped with two confessions on the base the through-hole that the connecting link passed, the connecting link penetrates the mounting in stretching out the chain link of the one end of through-hole, and the both ends of mounting are stretched out and are blocked the through-hole handle the connecting link is fixed on the base, the space packing between coal rock mass and the base has the multilayer to connect a plank.
One end of the connecting piece is provided with a nut and is in threaded connection with the fixed anchor rod, the other end of the connecting piece is provided with a lifting lug, a chain passing hole is formed in the lifting lug, and the connecting chain is connected to the chain passing hole.
The lifting lug is a conical body with a wide upper part and a narrow lower part, and two side surfaces of the lifting lug are concave cambered surfaces.
The fixed anchor rod is a roadway roof support anchor rod.
The length of the connecting chain is adjusted by knotting or increasing or decreasing the number of chain links.
The base is of a groove-shaped structure capable of bearing the roof-contacting wood board, and the through holes are symmetrically formed in a bottom plate of the base.
The connecting chain is made of alloy steel.
The utility model has the advantages that: the utility model discloses do not connect the top to long fully mechanized non-coal post working face extraction hydraulic support, cause roof large tracts of land suspended ceiling, gas to gather the scheduling problem, adopt to connect a device to connect the top, connect a plank and connecting chain can control, be applicable to the tunnel of different empty roof heights to can reserve a certain amount of space as the sunken buffering of roof nature, thereby realize the smooth top that connects of roof, make coal mining work go on smoothly safely. Compared with the prior art, the utility model can effectively ensure the production safety on one hand, and the bracket is contacted with the top plate through the device; and the float knife is not needed, so that the extraction amount of the working surface can be ensured; in addition on the one hand, the utility model discloses simple structure, convenient operation, the current material in make full use of colliery does not need additionally to purchase equipment, has practiced thrift engineering support material, has reduced construction cost, reduces extravagantly. The method is simple, easy to implement, safe and economical, good in supporting effect and wide in practicability.
Drawings
The invention will be further explained below with reference to the drawings and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the connector structure;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a top view of FIG. 2;
FIG. 5 is a schematic view of the fastener attachment;
FIG. 6 is a front view of the base structure;
fig. 7 is a cross-sectional view of the via location of fig. 6.
In the figure: 1. the device comprises a fixed anchor rod 2, a connecting piece 2-1, a chain passing hole 2-2, a lifting lug 2-3, a nut 3, a connecting chain 4, a base 4-1, a through hole 5, a fixing piece 6, a roof connecting wood plate 7 and a coal rock mass.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments, of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by the ordinary skilled person in the art without developing the creative work belong to the protection scope of the present invention.
Techniques, methods and apparatus known to those skilled in the art may not be discussed in detail but are intended to be part of the specification where appropriate.
The coal-pillar-free stoping through-empty roadway hydraulic support jacking device comprises two fixing anchor rods 1 fixed on a coal rock body 7, a connecting piece 2 is installed at the extending end of each fixing anchor rod 1, a connecting chain 3 is connected onto the connecting piece 2, the other ends of the two connecting chains 3 are connected onto a base 4, two through holes 4-1 for the connecting chains 3 to pass through are formed in the base 4, a fixing piece 5 penetrates into a chain ring at one end of each connecting chain 3 extending out of the through hole 4-1, two ends of each fixing piece 5 extend out of the blocking through holes 4-1 to fix the connecting chains 3 onto the base 4, and a plurality of layers of jacking wood plates 6 are filled in a gap between the coal rock body 7 and the base 4.
One end of the connecting piece 2 is provided with a nut 2-3 which is in threaded connection with the fixed anchor rod 1, the other end of the connecting piece 2 is provided with a lifting lug 2-2, the lifting lug 2-2 is provided with a chain passing hole 2-1, and the connecting chain 3 is connected with the chain passing hole 2-1.
The lifting lug 2-2 is a conical body with a wide upper part and a narrow lower part, and two side surfaces of the lifting lug 2-2 are concave arc surfaces.
The fixed anchor rod 1 is a roadway roof support anchor rod.
The length of the connecting chain 3 is adjusted by knotting or increasing or decreasing the number of chain links.
The base 4 is of a groove-shaped structure capable of bearing the roof-contacting wood board 6, and the through holes 4-1 are symmetrically arranged on a bottom plate of the base 4.
The connecting chain 3 is made of alloy steel.
The utility model discloses a theory of operation does: the structure comprises a fixed anchor rod 1, a connecting piece 2, a connecting chain 3, a base 4, a fixing piece 5 and a roof connecting wood plate 6. When the coal rock mass 7 is connected to the top of the hydraulic support passing through the empty roadway, the connecting piece 2 and the exposed end of the fixing anchor rod of the original empty roadway top plate need to be fixed firstly, then the other end of the connecting piece 2 is connected with the connecting chain 3, the tail end of the connecting chain penetrates through the through hole 4-1 of the base 4, the fixing piece 5 penetrates through the chain ring like a pin to be fixed, the connecting chain at the other end is fixed in the same mode, after a group of connecting chain is arranged, the top-connecting wood plate 6 can be placed on the base 4 to be lapped, the number of the wood plates is determined according to the height of the empty roof, the empty roadway top plate is supported, and the length of the connecting chain 3 can be adjusted, so that.
The utility model is used for when the working face does not have the coal pillar extraction, because the tunnel is arranged along the coal seam roof and the working face is along the exploitation of end caving coal and is caused hydraulic support not to meet the top to cause the condition of empty top. The utility model provides a because tunnel support does not meet the large tracts of land empty roof that the top caused and caving suddenly and emit, gas gathers the scheduling safety problem. The problems of roadway support are solved, the construction cost is reduced, and the safety of coal mining operation is improved. The method is simple, easy to implement, safe and economical, good in roof connecting effect and wide in practicability.
The above description is only exemplary embodiments of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a no coal pillar extraction crosses empty lane hydraulic support and connects top device which characterized in that: including fixing two fixed stock (1) on coal rock body (7), connecting piece (2) are installed to the end that stretches out of every fixed stock (1), are connected with connecting link (3) on connecting piece (2), and the other end of two connecting link (3) is connected on a base (4), is equipped with two confessions on base (4) through-hole (4-1) that connecting link (3) passed, penetrate mounting (5) in the chain link of the one end that connecting link (3) stretched out through-hole (4-1), the both ends of mounting (5) are stretched out and are blocked through-hole (4-1) handle connecting link (3) are fixed on base (4), the space packing between coal rock body (7) and base (4) has multilayer to connect a plank (6).
2. The coal-pillar-free stoping roadway-passing hydraulic support jacking device according to claim 1, wherein: one end of the connecting piece (2) is provided with a nut (2-3) which is in threaded connection with the fixed anchor rod (1), the other end of the connecting piece (2) is provided with a lifting lug (2-2), the lifting lug (2-2) is provided with a chain passing hole (2-1), and the connecting chain (3) is connected to the chain passing hole (2-1).
3. The coal-pillar-free stoping roadway-passing hydraulic support jacking device according to claim 2, wherein: the lifting lug (2-2) is a conical body with a wide upper part and a narrow lower part, and two side surfaces of the lifting lug (2-2) are concave arc surfaces.
4. The coal-pillar-free stoping roadway-passing hydraulic support jacking device according to claim 1, wherein: the fixed anchor rod (1) is a roadway roof support anchor rod.
5. The coal-pillar-free stoping roadway-passing hydraulic support jacking device according to claim 1, wherein: the length of the connecting chain (3) is adjusted by knotting or increasing or decreasing the number of chain links.
6. The coal-pillar-free stoping roadway-passing hydraulic support jacking device according to claim 1, wherein: the base (4) is of a groove-shaped structure capable of bearing the roof-contacting wood board (6), and the through holes (4-1) are symmetrically arranged on a bottom plate of the base (4).
7. The coal-pillar-free stoping roadway-passing hydraulic support jacking device according to claim 1, wherein: the connecting chain (3) is made of alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022634004.9U CN213775420U (en) | 2020-11-13 | 2020-11-13 | Non-pillar mining through-airway hydraulic support jacking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022634004.9U CN213775420U (en) | 2020-11-13 | 2020-11-13 | Non-pillar mining through-airway hydraulic support jacking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213775420U true CN213775420U (en) | 2021-07-23 |
Family
ID=76916502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022634004.9U Expired - Fee Related CN213775420U (en) | 2020-11-13 | 2020-11-13 | Non-pillar mining through-airway hydraulic support jacking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213775420U (en) |
-
2020
- 2020-11-13 CN CN202022634004.9U patent/CN213775420U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210723 Termination date: 20211113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |