CN201943721U - Driving face anchor bolt support forepoling bar - Google Patents
Driving face anchor bolt support forepoling bar Download PDFInfo
- Publication number
- CN201943721U CN201943721U CN2011200418550U CN201120041855U CN201943721U CN 201943721 U CN201943721 U CN 201943721U CN 2011200418550 U CN2011200418550 U CN 2011200418550U CN 201120041855 U CN201120041855 U CN 201120041855U CN 201943721 U CN201943721 U CN 201943721U
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- China
- Prior art keywords
- nut
- connecting plate
- anchor bolt
- driving face
- plate
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a driving face anchor bolt support forepoling bar, which comprises an anchor bolt and a dual-pin articulated roof beam. A saddle-shaped upper connecting plate is fixed on the anchor bolt through a nut and a base plate; two equal-length straight through bolts are hung at both ends of the upper connecting plate; an upper clamping nut and a lower clamping nut are screwed on the bolts; a middle clamping plate and an inverted saddle-shaped lower connecting plate are penetrated on a bolt bar between the upper clamping nut and the lower clamping nut; and the dual-pin articulated roof beam is clamped between the middle clamping plate and the lower connecting plate. Compared with the prior art, the utility model has the advantages that the driving face anchor bolt support forepoling bar can be adjusted along with the rugged top surface of a roadway or a tunnel to make a top beam cling to a rock face, so that a contact surface is increased and roof fall and rock fall are prevented.
Description
Technical field
The utility model relates to a kind of forestope that is used for coal mine roadway or tunnel roof temporary lining, especially a kind of driving face bolt support forestope.
Background technology
At present, when coal mine roadway or tunnel piercing, generally use bolting with wire mesh, when driving, the employing that the temporary lining of meeting head on has is hung pallet and is protected the top under roll bolt, and the employing anchor pole that has is hung ring belt iron pipe or long fine strain of millet down, comes interim supporting roof.Because the end face in tunnel or tunnel is up-and-down, being subjected to it to influence top board must also be up-and-down, therefore, above various methodologies all exists forestope and little, the every exposure one place's top board of top board contact area, the whole reach of forestope, and supporting intensity is low, the workman is awkward, roof fall, falling rocks take place easily, bring hidden danger to safety in production, human casualty accident happens occasionally.Therefore, designing and a kind ofly can adjust, make back timber to be close to scar, increase contact surface with the up-and-down end face in tunnel or tunnel, prevent the driving face bolt support forestope of roof fall falling rocks, be the present technical issues that need to address.
Summary of the invention
Technical problem to be solved in the utility model provides a kind ofly can be adjusted, make back timber to be close to scar, increase contact surface with the up-and-down end face in tunnel or tunnel, prevents the driving face bolt support forestope of roof fall falling rocks.
The technical scheme in the invention for solving the technical problem is:
Driving face bolt support forestope, form by anchor pole and double-pin articulated roof beam, on anchor pole, be fixed with shape of a saddle upper junction plate by nut and backing plate, in the suspention of the two ends of upper junction plate two isometric harness cord bolts are arranged, be installed with the chucking nut on the bolt and tightening nut down, tighten nut and be coated with middle clamp and the lower connecting plate of falling the shape of a saddle on the shank of bolt between the chucking nut down last, described double-pin articulated roof beam is installed between middle clamp and the lower connecting plate.
The technical scheme in the invention for solving the technical problem can also be:
The anchor pole fixing hole of upper junction plate described in the utility model is a slotted hole, and the width of the saddle groove of described lower connecting plate is greater than the width of double-pin articulated roof beam.
The utility model is installed with the upper junction plate hold-down nut on the bolt of upper junction plate bottom.
Compared with prior art, the utlity model has and to adjust, to make back timber to be close to scar, to increase contact surface with the up-and-down end face in tunnel or tunnel, prevent the advantage of roof fall falling rocks.
Description of drawings
Fig. 1 is the front view of structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the front view of part 1 among Fig. 1.
Fig. 5 is the vertical view of part 1 among Fig. 1.
Fig. 6 is the front view of part 10 among Fig. 1.
Fig. 7 is the vertical view of part 10 among Fig. 1.
Fig. 8 is the front view of part 7 among Fig. 1.
Fig. 9 is the vertical view of part 7 among Fig. 1.
The specific embodiment
As shown in the figure, driving face bolt support forestope, form by anchor pole 4 and double-pin articulated roof beam 9, it is characterized in that: on anchor pole 4, be fixed with shape of a saddle upper junction plate 1 by nut 3 and backing plate 2, in the suspention of the two ends of upper junction plate 1 two isometric harness cord bolts 6 are arranged, be installed with chucking nut 8 on the bolt 6 and tightening nut 11 down, tighten nut 8 and be coated with middle clamp 7 and the lower connecting plate of falling the shape of a saddle 10 on the shank of bolt between the chucking nut 11 down last, described double-pin articulated roof beam 9 is installed between middle clamp 7 and the lower connecting plate 10.The anchor pole fixing hole of described upper junction plate 1 is a slotted hole, and the width of the saddle groove of described lower connecting plate 10 is greater than the width of double-pin articulated roof beam 9.On the bolt 6 of upper junction plate 1 bottom, be installed with upper junction plate hold-down nut 5.
Claims (3)
1. driving face bolt support forestope, form by anchor pole (4) and double-pin articulated roof beam (9), it is characterized in that: go up at anchor pole (4) and be fixed with shape of a saddle upper junction plate (1) by nut (3) and backing plate (2), in the suspention of the two ends of upper junction plate (1) two isometric harness cord bolts (6) are arranged, on bolt (6), be installed with chucking nut (8) and tighten nut (11) down, clamp (7) and the lower connecting plate of falling the shape of a saddle (10) in the middle of being coated with on the shank of bolt between last chucking nut (8) and the following chucking nut (11), described double-pin articulated roof beam (9) is installed between middle clamp (7) and the lower connecting plate (10).
2. driving face bolt support forestope according to claim 1 is characterized in that: the anchor pole fixing hole of described upper junction plate (1) is a slotted hole, and the width of the saddle groove of described lower connecting plate (10) is greater than the width of double-pin articulated roof beam (9).
3. driving face bolt support forestope according to claim 1 and 2 is characterized in that: be installed with upper junction plate hold-down nut (5) on the bolt (6) of upper junction plate (1) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200418550U CN201943721U (en) | 2011-02-20 | 2011-02-20 | Driving face anchor bolt support forepoling bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200418550U CN201943721U (en) | 2011-02-20 | 2011-02-20 | Driving face anchor bolt support forepoling bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201943721U true CN201943721U (en) | 2011-08-24 |
Family
ID=44471070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200418550U Expired - Fee Related CN201943721U (en) | 2011-02-20 | 2011-02-20 | Driving face anchor bolt support forepoling bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201943721U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146802A (en) * | 2011-02-20 | 2011-08-10 | 李明 | Front exploring beam for heading surface anchor rod support |
| CN103306694A (en) * | 2013-05-20 | 2013-09-18 | 四川省华蓥山煤业股份有限公司李子垭南煤矿 | Cantilever support method and device for heavy-pitch soft coal seam in roadway excavation |
-
2011
- 2011-02-20 CN CN2011200418550U patent/CN201943721U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146802A (en) * | 2011-02-20 | 2011-08-10 | 李明 | Front exploring beam for heading surface anchor rod support |
| CN103306694A (en) * | 2013-05-20 | 2013-09-18 | 四川省华蓥山煤业股份有限公司李子垭南煤矿 | Cantilever support method and device for heavy-pitch soft coal seam in roadway excavation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20130220 |