CN203547769U - Device for improving hole-forming efficiency and anchoring performance of anchor rod and anchor cable of roadway base plate - Google Patents
Device for improving hole-forming efficiency and anchoring performance of anchor rod and anchor cable of roadway base plate Download PDFInfo
- Publication number
- CN203547769U CN203547769U CN201320483722.8U CN201320483722U CN203547769U CN 203547769 U CN203547769 U CN 203547769U CN 201320483722 U CN201320483722 U CN 201320483722U CN 203547769 U CN203547769 U CN 203547769U
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- China
- Prior art keywords
- rod
- drill rod
- anchor
- special
- drilling
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- Withdrawn - After Issue
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Abstract
The utility model discloses a device for improving hole-forming efficiency and anchoring performance of an anchor rod and an anchor cable of a roadway base plate. The device comprises a special drill rod, a connecting rod and a rod taking device. The special drill rod is successively utilized to perform twice drilling operation and is left in a hole after finishing the operation, then a drill rod is inserted into the inner cavity of the special drill rod to continue to drill till the designed depth is reached, the drill rod is taken out, an anchoring agent is put into, the anchor rod or the anchor cable is installed, and finally the rod taking device is utilized to take out the special drill rod. When the device is utilized to perform drilling and anchor rod or anchor cable installation, the special drill rod is left in the hole, and hole collapse can be effectively prevented. Smooth slurry return in the drilling process of an anchor rod and anchor cable drilling machine is ensured, water in the slurry is prevented from entering a loose fractured rock mass of the base plate shallow portion, accordingly broken rocks are prevented from depositing at the bottom of the hole, and drill rod clamping is avoided. The device is simple in structure, convenient to use and good in anchor rod and anchor cable anchoring effect, the drilling rate reaches to 100%, the drill rod clamping in the drilling process is effectively prevented, and the construction efficiency is improved remarkably.
Description
Technical field
The utility model relates to mining engineering and geotechnical engineering field, particularly a kind of device that improves baseboard of coal mine roadway anchor shaft anchor cable pore-forming efficiency and anchoring property.
Background technology
Pucking is dynamic phenomenon common in high stress and soft rock mine roadway, and the supporting of base plate anchor rete cord often cannot be implemented because difficulty of construction is large, efficiency of construction is low.At present, in colliery and geotechnical engineering, roadway floor anchor pole, anchor cable mainly adopt baseboard anchorage cable drill and the construction of common drilling rod.Three aspect problems below main existence in construction: country rock loose crushing in the depth bounds of (1) roadway floor 1m left and right, while creeping into, can bore very soon, but extract after drilling rod, hole steady and sure very soon, be difficult to pore-forming; (2) because base plate superficial part wall-rock crack is grown, and near country rock loose crushing in the depth bounds of backplate surface 1m left and right, in drilling process, water and landwaste are difficult to return and to backplate surface, amass in boring bottom, cause in work progress easily folder pricker; (3) due to downward boring, in floor rocks, have in water or boring and have the water slurry that is mixed with rock foam, cause anchor pole, anchorage cable anchoring weak effect.Due to above-mentioned three reasons, cause that base plate anchor rete cord difficulty of construction is very big, efficiency of construction is low, the supporting of base plate anchor rete cord is difficult to large scale application.
Utility model content
The technical problem solving: for the deficiencies in the prior art part, the utility model provides a kind of device that improves roadway floor anchor shaft anchor cable pore-forming efficiency and anchoring property, solves being difficult to pore-forming, easily pressing from both sides the technical problems such as pricker, anchoring effect be poor of existence in the construction of the common drilling rod of prior art.
Technical scheme: for solving the problems of the technologies described above, the utility model by the following technical solutions:
The device that improves roadway floor anchor shaft anchor cable pore-forming efficiency and anchoring property, comprises drill rod special, connecting rod and beche;
Described drill rod special is self-drilling hollow steel tube, and its body of rod internal diameter is greater than drilling rod external diameter, near its body of rod bottom, is provided with cut toothing, and its body of rod middle part and position, top arrange pin hole; The drilling rod is here the common drilling rod using in prior art construction;
Described connecting rod body of rod one end arranges pin hole, and the other end connects anchor pole (rope) rig connector; Described connecting rod body of rod internal diameter is greater than drill rod special external diameter;
Described beche comprises sleeve pipe and handle, and described handle and sleeve pipe one end are connected and fixed, and described sleeve pipe is hollow steel tube, and casing inner diameter is greater than drill rod special external diameter, and pin hole is set on sleeve pipe.
Further, in the utility model, described cut toothing is the structure of adamantine drill bit being installed or cutting gap.
Further, in the utility model, described drill rod special length is L
1, connecting rod length is L
2, rig stroke is L, rig head is H apart from the ultimate range of roadway floor
1, minimum range is H
2, meet L
1< H
1, L
1< 2L, L
2> H
2.
Beneficial effect: the device of raising roadway floor anchor shaft anchor cable pore-forming efficiency of the present utility model and anchoring property, successively utilize drill rod special to carry out bore operation 2 times, after completing, drill rod special operation stays in hole, then drilling rod is inserted to drill rod special inner chamber and continue boring until reach projected depth, take out drilling rod, through drill rod special, put into Anchor Agent, skyhook or anchor cable, finally utilize beche to take out drill rod special.
Utilize this device hole and later stage skyhook or anchor cable process in, drill rod special is stayed in hole always, can effectively prevent collapse hole, improve pore-forming efficiency;
Drill rod special has guaranteed can return smoothly slurry in anchor pole (anchor cable) borer drilling procedure simultaneously, and the water that prevents from returning in slurry enters in base plate superficial part loose crushing rock mass, avoids pressing from both sides pricker;
Further, owing to having water in boring, instant stretch-draw pretension or common Anchor Agent are after it solidifies and wait for that 2 day time carried out stretch-draw pretension after it solidifies to adopt waterproof Anchor Agent, and the anchoring effect of anchor pole, anchor cable is good.
Finally, in boring procedure, promote drilling rod in good time and then creep into, can effectively prevent from pressing from both sides in boring procedure pricker phenomenon.
Apparatus structure of the present utility model is simple, easy to use, and pore-forming and set-up time shorten greatly, and boring rate reaches 100%, and anchor pole, anchorage cable anchoring are effective, and base plate anchor pole, anchor cable construction efficiency are significantly improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of the drill rod special in the utility model;
Fig. 2 is the structural representation of the connecting rod in the utility model;
Fig. 3 is the structural representation of the beche in the utility model;
Fig. 4 is the structural representation of the pin in the utility model;
Fig. 5 is the structural representation of the dump bolt in the utility model;
Fig. 6 is the structural representation of the drilling rod in the utility model;
Fig. 7 is the structural representation that drill rod special of the present utility model middle part pin hole is connected with the pin hole on connecting rod;
Fig. 8 is the structural representation that the pin hole of drill rod special of the present utility model one end is connected with the pin hole on connecting rod;
Fig. 9 is the structural representation that the drill rod special in the utility model is connected with beche.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
The device that improves roadway floor anchor shaft anchor cable pore-forming efficiency and anchoring property, comprises drill rod special 1, connecting rod 2 and beche 3; If the length of drill rod special 1 is L
1, the length of connecting rod 2 is L
2, rig stroke L, rig head is H apart from the ultimate range of roadway floor
1, minimum range is H
2, for guaranteeing that this device can normally hole, meet L
1< H
1, for guaranteeing that drill rod special enters in hole completely through twice boring, meet L
1< 2L, L
2> H
2.
Described drill rod special 1 is self-drilling hollow steel tube, and it is drilling rod 6 external diameter 8～12mm that its body of rod internal diameter is greater than the common drilling rod using in prior art, is greater than the common drill bit 2～4mm on common drilling rod 6.Near its body of rod bottom, be provided with cut toothing, can increase the brill rock ability in borer drilling procedure.Concrete described cut toothing is by installing adamantine drill bit or forming in the mode that cuts gap, and the cut tooth in the present embodiment is the mode that cuts gap.Body of rod middle part and the position, top of drill rod special 1 arrange pin hole, and wherein the pin hole at drill rod special 1 middle part is slightly larger than L apart from the distance of the cut toothing of its front end, and after guaranteeing that stroke of rig finishes, the pin hole at middle part is exposed at the aperture of boring.
Described connecting rod 2 body of rod one end arrange pin hole, and the other end connects anchor pole (rope) rig connector 7; Described connecting rod 2 body of rod internal diameters are greater than drill rod special 1 external diameter 2mm left and right, and drill rod special 1 can be inserted in connecting rod 2 just.
Described beche 3 comprises sleeve pipe 8 and handle 9, and described handle 9 is connected and fixed with sleeve pipe 8 one end, and described sleeve pipe 8 is the external diameter 2mm left and right that hollow steel tube and sleeve pipe 8 internal diameters are greater than drill rod special 1, on sleeve pipe 8, pin hole is set.
The long anchor pole of 3m to be installed as example, improve the method for roadway floor anchor shaft anchor cable pore-forming efficiency and anchoring property, comprise and sequentially carry out following step:
Step 1: described drill rod special 1 is placed in connecting rod 2, pin hole on pin hole and the connecting rod 2 at drill rod special 1 middle part is fixedly linked by pin feature 4, connecting rod 2 other end rig connectors 7 are connected with rig head, on roadway floor, hole, until the exposed rod of drill rod special 1 enters in hole completely;
Step 2: remove the pin feature 4 in step 1, pin hole on the pin hole of drill rod special 1 other end and connecting rod 2 is fixedly linked by pin feature 4, the rig connector 7 of connecting rod 2 other ends is connected with rig head, proceeds boring until the exposed rod of drill rod special 1 enters in hole completely;
Step 3: remove the pin feature 4 in step 2, unload lower connecting rod 2, drilling rod 6 one end are connected in rig head, other end insertion drill rod special 1 and continue boring until hole depth reaches 3m, drilling rod 6 falls short of and can lengthen by stacks;
Step 4: take out drilling rod 6, put into Anchor Agent by drill rod special 1, anchor pole is inserted in boring through drill rod special, the other end is connected to rig head, rig head declines and drives anchor rod stirring Anchor Agent until Anchor Agent solidifies completely;
Step 5: the sleeve pipe of beche 38 is overlapped to drill rod special 1, and with the pin hole of pin feature 4 fixed sleevings 8 and drill rod special 1 one end; Holds handle 9 becomes reverse rotation to take out drill rod special 1 with boring direction;
Step 6: fixed for guaranteeing anchor pole, if described Anchor Agent is waterproof Anchor Agent, after Anchor Agent solidifies completely, anchor pole is carried out to instant pretension; If described Anchor Agent is common Anchor Agent, after Anchor Agent solidifies completely and waits for 2 days to anchor pole or carry out pretension.
Pin feature 4 described in said process comprises stub nail, and described stub nail comprises that stem knob and pin rod, pin rod afterbody are provided with fixing hole 10 and dump bolt 5, and described dump bolt 5 matches with fixing hole 10.When drill rod special 1 is connected with connecting rod 2 and when drill rod special 1 is connected with beche 3, stub is followed closely after the pin hole through respective aligned, then dump bolt 5 is inserted in fixing hole 10 and is fixed.Can make two parts that connected by pin feature 4 be fixed on the pin rod between stem knob and fixing hole, and increase little pin and can strengthen fixing, make the parts that connect not because the vibrations in drill hole of drilling machine process get loose.
Simultaneously in boring procedure, can promote used drilling rod 6 in good time and then creep into, carry out and so forth, can effectively avoid the folder pricker problem in boring procedure.
The above is only preferred embodiment of the present utility model; be noted that for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. the device that improves roadway floor anchor shaft anchor cable pore-forming efficiency and anchoring property, is characterized in that: comprise drill rod special (1), connecting rod (2) and beche (3);
Described drill rod special (1) is self-drilling hollow steel tube, and its body of rod internal diameter is greater than drilling rod (6) external diameter, and its body of rod bottom is provided with cut toothing, and its body of rod middle part and position, top arrange pin hole;
Described connecting rod (2) body of rod one end arranges pin hole, and the other end connects rig connector (7); Described connecting rod (2) body of rod internal diameter is greater than drill rod special (1) external diameter;
Described beche (3) comprises sleeve pipe (8) and handle (9), described handle (9) is connected and fixed with sleeve pipe (8) one end, described sleeve pipe (8) is hollow steel tube, and sleeve pipe (8) internal diameter is greater than drill rod special (1) external diameter, and sleeve pipe arranges pin hole on (8).
2. the device of raising roadway floor anchor shaft anchor cable pore-forming efficiency according to claim 1 and anchoring property, is characterized in that: described cut toothing is the structure of adamantine drill bit being installed or cutting gap.
3. the device of raising roadway floor anchor shaft anchor cable pore-forming efficiency according to claim 1 and anchoring property, is characterized in that: the length of described drill rod special (1) is L
1, the length of connecting rod (2) is L
2, rig stroke L, rig head is H apart from the ultimate range of roadway floor
1, minimum range is H
2, meet L
1< H
1, L
1< 2L, L
2> H
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483722.8U CN203547769U (en) | 2013-08-08 | 2013-08-08 | Device for improving hole-forming efficiency and anchoring performance of anchor rod and anchor cable of roadway base plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483722.8U CN203547769U (en) | 2013-08-08 | 2013-08-08 | Device for improving hole-forming efficiency and anchoring performance of anchor rod and anchor cable of roadway base plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547769U true CN203547769U (en) | 2014-04-16 |
Family
ID=50465898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320483722.8U Withdrawn - After Issue CN203547769U (en) | 2013-08-08 | 2013-08-08 | Device for improving hole-forming efficiency and anchoring performance of anchor rod and anchor cable of roadway base plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410542A (en) * | 2013-08-08 | 2013-11-27 | 中国矿业大学 | Device and method for improving roadway base plate anchor rod anchor cable pore-forming efficiency and anchoring performance |
-
2013
- 2013-08-08 CN CN201320483722.8U patent/CN203547769U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410542A (en) * | 2013-08-08 | 2013-11-27 | 中国矿业大学 | Device and method for improving roadway base plate anchor rod anchor cable pore-forming efficiency and anchoring performance |
| CN103410542B (en) * | 2013-08-08 | 2016-05-04 | 中国矿业大学 | Improve the device and method of roadway floor anchor shaft anchor cable pore-forming efficiency and anchoring property |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20160504 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |