CN221096562U - Temporary support device for tunneling working face - Google Patents
Temporary support device for tunneling working face Download PDFInfo
- Publication number
- CN221096562U CN221096562U CN202323284083.5U CN202323284083U CN221096562U CN 221096562 U CN221096562 U CN 221096562U CN 202323284083 U CN202323284083 U CN 202323284083U CN 221096562 U CN221096562 U CN 221096562U
- Authority
- CN
- China
- Prior art keywords
- shaft
- temporary support
- support device
- piston rod
- short shaft
- Prior art date
- 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.)
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Links
- 230000005641 tunneling Effects 0.000 title abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 7
- 238000005422 blasting Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a temporary support device for a tunneling working face, which comprises a hydraulic pushing device (1) and is characterized in that: the piston rod shaft head (11) of the hydraulic pushing and sliding device (1) is welded with the short shaft (2) with the same diameter, the extension rod (4) is fixed with the piston rod of the hydraulic pushing and sliding device (1) through the short shaft (2), the top end of the extension rod (4) is welded with the top plate (5), two sides of the top plate (5) are respectively welded with the chain links (6), and the chain links (6) are connected with the safety chains (7). Strong supporting force, simple structure, light weight, and convenient carrying and maintenance. The method provides an effective control operation area for construction operators, ensures the safety of the operators and improves the working efficiency.
Description
Technical Field
The utility model belongs to the technical field of mine tunneling supporting equipment, and particularly relates to a temporary supporting device for a tunneling working face.
Background
The temporary support forms of underground blasting tunneling roadway of mines mostly adopt forms of front cantilever after blasting or front injection of advanced anchor rods, advanced anchor ropes and the like before blasting, and the conditions of broken rock and poor integrity are met, so that roof management becomes a major hidden trouble for threatening safety production. The temporary support device commonly used after blasting at present has the problems of complex construction procedure links, heavy support materials, weak adaptability and the like, and particularly has insufficient reliability of support under the condition that the rock mass is exposed after blasting of a large-section roadway, and the risk of injury caused by falling gangue is always present.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a temporary support device for a tunneling working face.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a tunnelling face temporary support device, includes hydraulic pressure pushing away swift current ware, its characterized in that: the piston rod shaft head of the hydraulic pushing and sliding device is welded with a short shaft with the same diameter, the extension bar is fixed with the piston rod of the hydraulic pushing and sliding device through the short shaft, the top end of the extension bar is welded with a top plate, two sides of the top plate are respectively welded with chain links, and the chain links are connected with safety chains.
The extension bar is a seamless steel tube, and a section of the bottom of the seamless steel tube is processed into a shaft sleeve so as to control the coaxiality of the extension bar and a shaft head of the piston rod. The inner diameter of the shaft sleeve is equal to the outer diameter of the short shaft, the shaft heads of the piston rod and the shaft sleeve are provided with corresponding pin holes, the shaft sleeve is in clearance fit with the short shaft, and the lengthening bar is sleeved into the short shaft and the shaft heads of the piston rod through the shaft sleeve and is inserted into the pin holes to be fixed by bolts.
The specification of the seamless steel pipe is phi 50 multiplied by 5mm, the inner diameter is 40mm, and the length is determined according to the roadway height and the anchor rod length; the length of the shaft sleeve is 160mm, and the inner diameter phi is 40+1mm; the outer diameter of the short shaft is 40mm, and the length of the short shaft is 110mm; the pin hole diameter is 10mm.
The end head of the safety chain is connected with a hook for connecting and hanging the net sheet.
And the bottom of the hydraulic pushing and sliding device is fixed with a base.
The utility model has the beneficial effects that: the length of the piston rod of the hydraulic pushing and sliding device is prolonged through the welding short shaft, so that the extension rod is firmly fixed with the piston rod of the hydraulic pushing and sliding device, the requirement of roadway support height is met to the greatest extent, the temporary support of the empty roof area after blasting is formed rapidly, the supporting force is strong, the structure is simple, the weight is light, and the carrying and the maintenance are convenient. The roof support area can be effectively increased through the cooperation of a plurality of devices, an effective control operation area is provided for construction operators, the safety of the operators is guaranteed, and the working efficiency is improved.
Drawings
FIG. 1 is a block diagram of the present utility model;
In the figure: the hydraulic pushing and sliding device comprises a 1-hydraulic pushing and sliding device, a 11-piston rod shaft head, a 12-pin hole, a 2-short shaft, a 3-shaft sleeve, a 4-extension rod, a 5-top plate, a 6-chain ring, a 7-safety chain and an 8-base.
Detailed Description
Referring to fig. 1, a temporary support device for a tunneling working face comprises a hydraulic pushing device 1, and is characterized in that: the piston rod shaft head 11 of the hydraulic pushing and sliding device 1 is welded with a short shaft 2 with the same diameter, the extension bar 4 is fixed with a piston rod of the hydraulic pushing and sliding device 1 through the short shaft 2, the top end of the extension bar 4 is welded with a top plate 5, two sides of the top plate 5 are respectively welded with chain rings 6, the chain rings 6 are connected with safety chains 7, the ends of the safety chains 7 are connected with hooks for connecting and hanging net sheets, and the bottom of the hydraulic pushing and sliding device 1 is fixed with a base 8.
The extension rod 4 is a seamless steel pipe, a section of the bottom of the seamless steel pipe is processed into a shaft sleeve 3, the inner diameter of the shaft sleeve 3 is equal to the outer diameter of the short shaft 2, corresponding pin holes 12 are formed in the piston rod shaft head 11 and the shaft sleeve 3, the shaft sleeve 3 is in clearance fit with the short shaft 2, and the extension rod 4 is sleeved into the short shaft 2 and the piston rod shaft head 11 through the shaft sleeve 3 and is inserted into the pin holes 12 through bolts to be fixed.
The specification of the seamless steel pipe is phi 50 multiplied by 5mm, the inner diameter is 40mm, and the length is determined according to the roadway height and the anchor rod length; the length of the shaft sleeve 3 is 160mm, and the inner diameter phi is 40+1mm; the outer diameter of the short shaft 2 is 40mm, and the length is 110mm; the pin bore 12 has a diameter of 10mm.
After the working face is blasted, knocking the upper and the top, and then, the site operator overlaps the net sheet under the permanent supporting tunnel at the edge of the upper circulating supporting net sheet and firmly connects the net sheet, and the net sheet is paved on the original rock top plate by using an anchor injection top drill or a rock drill gas leg in cooperation with manpower. The hydraulic pushing and sliding device 1 is supported on the working surface, the positions of the hydraulic pushing and sliding devices are reasonably arranged, the positions of vault anchor rods are avoided, and the safety construction space of the anchor rods is reserved. One person erects the hydraulic pushing and sliding device 1, ensures that the base 8 is supported on a flat slag surface, and when the slag surface is too soft, a 50mm thick wood plate is used as a column shoe, and only one wood plate can be padded. And the other worker sleeves the extension rod 4 on the short shaft 2 through the shaft sleeve 3, rotates the extension rod 4 to align with the pin hole 12, and then passes through the bolt for fixing, so that the assembly is completed. The hydraulic pushing and sliding device 1 is manually pressed to lift the piston rod, so that the top plate 5 supports the top plate of the original rock, and then the safety chain 7 is hung on the net sheet, so that people are prevented from being injured by dumping when the rock below the base 8 is soft or depressurized.
After at least two utility models are supported on the working surface according to the requirements, the anchor rod injection work is carried out under the shielding of the utility models, and the utility model can be dismantled after the anchor rod injection is complete or vault rock is effectively controlled.
Claims (5)
1. The utility model provides a tunnelling face temporary support device, includes hydraulic pressure pushing away swift current ware (1), its characterized in that: the piston rod shaft head (11) of the hydraulic pushing and sliding device (1) is welded with the short shaft (2) with the same diameter, the extension rod (4) is fixed with the piston rod of the hydraulic pushing and sliding device (1) through the short shaft (2), the top end of the extension rod (4) is welded with the top plate (5), two sides of the top plate (5) are respectively welded with the chain links (6), and the chain links (6) are connected with the safety chains (7).
2. A temporary support device for a heading face as defined in claim 1, wherein: the extension rod (4) is a seamless steel pipe, a section of the bottom of the seamless steel pipe is processed into a shaft sleeve (3), the inner diameter of the shaft sleeve (3) is equal to the outer diameter of the short shaft (2), corresponding pin holes (12) are formed in the piston rod shaft head (11) and the shaft sleeve (3), and the extension rod (4) is sleeved into the short shaft (2) and the piston rod shaft head (11) through the shaft sleeve (3) and is fixed through bolts inserted into the pin holes (12).
3. A temporary support device for a heading face as claimed in claim 2, wherein: the specification of the seamless steel pipe is phi 50 multiplied by 5mm, the inner diameter is 40mm, and the length is determined according to the roadway height and the anchor rod length; the length of the shaft sleeve (3) is 160mm, and the inner diameter phi is 40+1mm; the outer diameter of the short shaft (2) is 40mm, and the length of the short shaft is 110mm;
the diameter of the pin hole (12) is 10mm.
4. A temporary support device for a heading face as defined in claim 1, wherein: the end of the safety chain (7) is connected with a hook for connecting and hanging the net sheet.
5. A temporary support device for a heading face as defined in claim 1, wherein: the bottom of the hydraulic pushing and sliding device (1) is provided with a fixed base (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323284083.5U CN221096562U (en) | 2023-12-04 | 2023-12-04 | Temporary support device for tunneling working face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323284083.5U CN221096562U (en) | 2023-12-04 | 2023-12-04 | Temporary support device for tunneling working face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221096562U true CN221096562U (en) | 2024-06-07 |
Family
ID=91319600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323284083.5U Active CN221096562U (en) | 2023-12-04 | 2023-12-04 | Temporary support device for tunneling working face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221096562U (en) |
-
2023
- 2023-12-04 CN CN202323284083.5U patent/CN221096562U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |