CN214499101U - Automatic telescopic type forepoling bar - Google Patents
Automatic telescopic type forepoling bar Download PDFInfo
- Publication number
- CN214499101U CN214499101U CN202120185411.8U CN202120185411U CN214499101U CN 214499101 U CN214499101 U CN 214499101U CN 202120185411 U CN202120185411 U CN 202120185411U CN 214499101 U CN214499101 U CN 214499101U
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- China
- Prior art keywords
- fixed
- forepoling
- front canopy
- coal mine
- movable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003245 coal Substances 0.000 abstract description 18
- 230000005641 tunneling Effects 0.000 abstract description 17
- 238000010276 construction Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 2
- 241001092070 Eriobotrya Species 0.000 description 1
- 235000009008 Eriobotrya japonica Nutrition 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010878 waste rock Substances 0.000 description 1
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Abstract
A advance temporary support device for tunneling construction of a coal mine underground roadway is characterized in that a movable forepoling beam is connected with the top of a telescopic oil cylinder, and a bolt shaft is fixed; then the movable front canopy is placed into the fixed front canopy, the baffle plate penetrates through flat holes in the bottom of the oil cylinder and the tail of the fixed front canopy, the fixed front canopy is fixed through a split pin and is connected with a water valve, and compression springs are mounted on the lug rings on the top of the fixed front canopy and the lug rings on the top of the movable front canopy. Every 2 or 3 forebeams are in a combination. The automatic telescopic type forestope device for the coal mine is used for the advance support of the underground driving working face of the coal mine, has simple structure, simple and convenient operation, safety and practicability, can complete the temporary support of two sheds at one time, solves the problem that the driving operation under the coal mine at the lower part of a goaf easily causes the falling of a top plate and the roof fall to hurt people, improves the temporary support efficiency, saves time and labor, is safe and reliable, and is very economical and applicable.
Description
Technical Field
The invention relates to a device for facilitating advance temporary support of an underground roadway in a coal mine in tunneling construction, which is special equipment for preventing a roof from falling and leaking to hurt people in the tunneling operation process and ensuring the safety of tunneling advance support operation.
Background
The forepoling bar is a device for temporary support of a coal mine underground tunneling working face. Before permanent support, temporary support is needed for a coal mine tunneling roadway, and people are prevented from being injured due to roof falling and roof leakage. The original temporary support of the mine adopts 2 fixed steel pipes as a front canopy, the front canopy needs to be manually moved forwards after blasting each time, and then an anchor rod and an anchor cable are driven to carry out permanent support. Because every circulation all needs artifical antedisplacement forestope, causes operating personnel intensity of labour big, and has the roof and drop, the risk of roof hurting people, has brought the hidden danger for safety in production. The special device for the temporary support of the automatic telescopic type front canopy is successfully developed in order to solve the problems that a roof is easy to fall off and people are injured due to roof collapse in the tunneling construction process and improve the supporting efficiency of the tunneling construction.
Disclosure of Invention
The invention aims to provide special equipment which can effectively avoid the risks that a top plate is easy to fall off and people are injured by roof collapse, increase the construction safety coefficient, improve the temporary support efficiency of tunneling construction and effectively reduce the labor intensity of the tunneling construction.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a colliery underworkings advances temporary support device that tunnelling was under construction, includes: the fixed forepoling beam is characterized in that a telescopic oil cylinder is fixedly mounted in the fixed forepoling beam, a movable forepoling beam is further arranged inside the fixed forepoling beam and connected with the telescopic oil cylinder through a pin shaft, and a compression spring is mounted at the end part of the movable forepoling beam and the end part of the fixed forepoling beam.
The telescopic oil cylinder is provided with a through valve and a water pipe.
2 earrings are welded on the top of the fixed forepoling bar, the compression spring is connected with the earrings, and an anti-skid chain is arranged outside the fixed forepoling bar.
The fixed forepoling bar and the telescopic oil cylinder are fixedly installed through a pin shaft.
The application of the automatic telescopic type forepoling bar device for the coal mine can solve the problem that the lower part of a goaf is tunneled under the coal mine, so that the risk that a roof falls off and people are injured due to roof collapse is easily caused, the tunneling construction process is conveniently and safely and effectively advanced, and the safety of forepoling construction in the tunneling process is ensured. The automatic telescopic type forepoling bar device for the coal mine is safe, effective, simple, convenient and economical, and the technology is suitable for popularization and application in national underground coal mine tunneling temporary support construction.
The automatic telescopic type front canopy device for the coal mine is simple in structure, easy to process and operate, safe, reliable and convenient to use, reduces the labor intensity of personnel during using the advance support, improves the support efficiency, avoids risks of falling of a top plate, roof collapse, hurting people and the like, and is safe and reliable. The method is successfully implemented and applied, the safety guarantee level and the supporting construction efficiency of the tunneling construction are greatly improved, and the safety performance and the economic benefit are very obvious.
Drawings
Fig. 1 is a front view structural view of the present invention.
Fig. 2 is a front view of the fixed forepoling bar of the present invention.
Fig. 3 is a side view of the fixed forebeam of the present invention.
Fig. 4 is a front view of the movable forepoling bar of the present invention.
Fig. 5 is a side view of the movable forebeam of the present invention.
Fig. 6 shows a telescopic cylinder according to the present invention.
In the drawings: 1. A compression spring; 2. a movable forepoling bar; 3. fixing the front cantilever; 4. A pin shaft;
5. a telescopic oil cylinder; 6. anti-skid chains; 7. a baffle plate; 8. a cotter pin; 9. a straight-through valve; 10. a water pipe.
Detailed Description
The invention will be further described with reference to the following figures and specific examples:
the applied automatic telescopic type forepoling bar device for the coal mine is simple in structure, easy to process and convenient to operate, the problems that a roof of a goaf in the coal mine falls off in the tunneling process, the roof falls off, people are injured due to roof collapse and the like are solved, the labor intensity is reduced, the supporting efficiency is improved, and the safety and reliability are high.
Fig. 1, 2, 3 and 4 show the automatic telescopic front cantilever of the present invention, and fig. 1 is a structural diagram of the automatic telescopic front cantilever, including: the device comprises a compression spring 1, a movable forepoling bar 2, a fixed forepoling bar 3, a pin shaft 4, a telescopic oil cylinder 5, an anti-skid chain 6, a baffle 7, a split pin 8, a through valve 9 and a water pipe 10.
The fixed forepoling beam is provided with 2 symmetrical flat holes at the tail part, 1 water valve hole at the side surface, and an anti-skid chain and 2 earrings at the top part.
The movable forepoling beam is provided with 1 pin shaft hole and 2 symmetrical round holes at the bottom, and 2 earrings are welded at the top.
The automatic telescopic type forepoling bar device for the coal mine is shown in figure 1.
The fixed forepoling 3 is provided with 2 symmetrical flat holes at the tail part so as to fix the telescopic oil cylinder 5; 1 water valve hole is opened to the side, and 2 earrings are welded at the top, are convenient for connect compression spring.
The bottom of the movable forepoling beam is provided with 2 symmetrical round holes so as to be connected with the telescopic oil cylinder; 2 earrings are welded at the top, so that the compression spring can be conveniently connected. The movable forepoling beam is connected with the top of the telescopic oil cylinder, and the bolt shaft is fixed; then the movable front canopy is placed into the fixed front canopy, the baffle plate penetrates through flat holes in the bottom of the oil cylinder and the tail of the fixed front canopy, the fixed front canopy is fixed through a split pin and is connected with a water valve, and compression springs are mounted on the lug rings on the top of the fixed front canopy and the lug rings on the top of the movable front canopy. Every 2 or 3 forebeams are in a combination.
The invention is installed head-on in the working face of the underground coal mine roadway tunneling, so that the operation personnel can conveniently operate and use the device.
When the invention is installed and used: firstly, knocking and asking the top of a top plate before supporting, finding out dangerous rock suspended waste rocks in an empty top area, and placing an automatic telescopic type front canopy in a head-on permanent steel shed hanging chain, wherein 2 or 3 front canopy beams are combined; and then the top plates are networked, steel beams are arranged, wood logins are penetrated, and wood wedges are added for fixing to complete the temporary supporting work of the first shed. And the second shed is erected in sequence, and only the water valve is connected with the automatic telescopic type forestope oil cylinder valve, the valve is opened, the telescopic oil cylinder works, the movable forestope stretches out, the steel beam is installed again, the wood loquat is penetrated, the wood wedge is added for fixing, and the temporary supporting work of the second shed is completed. After coal (waste rock) is discharged, shed legs are installed, the waist and the solid sides are arranged, a supporting rod is added, a shed connecting device is fixed, a water valve is closed and detached, a compression spring works, a telescopic oil cylinder is decompressed to drive a movable forepoling beam to retract, and the forepoling beam is removed for standby.
The invention is used for advance support of the underground coal mine tunneling working face, has simple structure, simple and convenient operation, safety and practicability, can complete temporary support of two sheds at one time, not only improves the temporary support efficiency, but also saves time and labor, is safe and reliable, and is very economical and applicable.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the concept and the protection scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (4)
1. Automatic telescopic forestope includes: the fixed forepoling beam (3) is characterized in that a telescopic oil cylinder (5) is fixedly mounted in the fixed forepoling beam (3), a movable forepoling beam (2) is further arranged inside the fixed forepoling beam (3), the movable forepoling beam (2) is connected with the telescopic oil cylinder (5) through a pin shaft (4), and a compression spring (1) is mounted at the end part of the movable forepoling beam (2) and the end part of the fixed forepoling beam (3).
2. The automatic telescopic forepoling bar of claim 1, characterized by: the telescopic oil cylinder (5) is provided with a through valve (9) and a water pipe (10).
3. The automatic telescopic forepoling bar of claim 1, characterized by: 2 earrings are welded at the top of the fixed forepoling beam (3), the compression spring (1) is connected with the earrings, and an anti-skid chain (6) is arranged outside the fixed forepoling beam (3).
4. The automatic telescopic forepoling bar of claim 1, characterized by: the fixed forepoling bar (3) and the telescopic oil cylinder (5) are fixedly installed through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120185411.8U CN214499101U (en) | 2021-01-24 | 2021-01-24 | Automatic telescopic type forepoling bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120185411.8U CN214499101U (en) | 2021-01-24 | 2021-01-24 | Automatic telescopic type forepoling bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214499101U true CN214499101U (en) | 2021-10-26 |
Family
ID=78216505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120185411.8U Expired - Fee Related CN214499101U (en) | 2021-01-24 | 2021-01-24 | Automatic telescopic type forepoling bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214499101U (en) |
-
2021
- 2021-01-24 CN CN202120185411.8U patent/CN214499101U/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: 20211026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |