CN105443150A - Self-drilling anchor rod capable of rapidly mounting - Google Patents
Self-drilling anchor rod capable of rapidly mounting Download PDFInfo
- Publication number
- CN105443150A CN105443150A CN201510819793.4A CN201510819793A CN105443150A CN 105443150 A CN105443150 A CN 105443150A CN 201510819793 A CN201510819793 A CN 201510819793A CN 105443150 A CN105443150 A CN 105443150A
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- China
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- section
- rod
- drill bit
- sleeve pipe
- external diameter
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- Pending
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
- E21D21/0046—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts formed by a plurality of elements arranged longitudinally
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a self-drilling anchor rod capable of rapidly mounting, wherein a rod body orderly comprises a bit fixed thread segment, a polish rod segment and a main thread segment from one end of a fixed bit to the other end, a sleeve with a slotted structure is sleeved on the rod body of the polish rod segment along the vertical direction, a step portion which is used to limit the sleeve on one side of the polish rod segment is arranged between the polish rod segment and the main thread segment, the bit comprises a front end portion for drilling and a rear end portion, the bit is fixed on the bit fixed thread segment of the rod body through the rear end portion, the rear end portion uses a conical structure, the outer diameter of the conical structure is gradually reduced back on to the front end portion, the sleeve is provided with a front port and a rear port, the front port is arranged toward one end of the bit, the rear port is arranged toward one end of the main thread segment, the inner diameter of the front port of the sleeve is smaller than the outer diameter of the front end portion of the bit, and is bigger than the outer diameter of a small diameter end of the rear end portion, and the outer diameter of the middle of the sleeve is bigger than the outer diameter of the front end portion of the bit. The self-drilling anchor rod capable of rapidly mounting is simple in structure, can achieve self-locking and hanging functions after being mounted, and is firm to fix and low in production cost.
Description
Technical field
The invention belongs to anchor pole link technique field, be specifically related to a kind of automatic anchor pole of Fast Installation.
Background technology
Automatic anchor pole mainly has a high strength casing longitudinally cracked by cover on the body of rod, sleeve pipe has very strong elasticity because it has slotting structure, sleeve pipe is pressed in boring, friction fit is formed by sleeve surface and boring inner surface, thus to frictionally the body of rod is fixed in boring, therefore, automatic anchor pole is specially adapted to the occasions such as tunnel top, after anchor pole pierces soil layer or rock stratum, be fixed on by the friction of sleeve pipe in hole, anchor pole can not drop, and is convenient to follow-up cement injection and stretch-draw Shi Hanzhang etc. fixing further.
Current Application comparison automatic anchor pole widely, unfixing and expansion structure, cannot self-locking and suspension after rockbolt installation completes, therefore upwards skyhook and slip casting process very difficult, also needing needing the place of Shi Hanzhang anchor pole to take out, reinstalling the shell head that rises.
Summary of the invention
The object of the invention is to: for Problems existing in above-mentioned existing automatic anchor pole, a kind of automatic anchor pole of Fast Installation is provided, the body of rod section of fixed sleeving is non-threaded polished rod structure, be conducive to the discharge of considering slag to be worth doing, body of rod stuck phenomenon is avoided to occur, and sleeve structure is simple, fit more firmly good with boring inner surface.
To achieve these goals, the technical solution used in the present invention is:
An automatic anchor pole for Fast Installation, comprises the body of rod, and is fixed on the drill bit of rod end;
The described body of rod comprises drill bit retaining thread section, polished rod section and main body screw section successively from one end of fixed drill bit to the other end, the body of rod of polished rod section being arranged with the sleeve pipe of a longitudinally slotting structure, between polished rod section and main body screw section, being provided with the stage portion for sleeve pipe being limited in polished rod section side;
Described drill bit comprises the leading section for holing, and drill bit is fixed on the rearward end of drill bit retaining thread section of the body of rod, and rearward end adopts the external diameter diminishing cone structure in leading section dorsad;
Described sleeve pipe has towards the front port of drill bit one end and the rear port towards main body screw section one end, the internal diameter of the front port of sleeve pipe is less than the leading section external diameter of drill bit, be greater than the external diameter of the miner diameter end of rearward end, the external diameter in the middle part of sleeve pipe is greater than the leading section external diameter of drill bit.
Preferably, the polished rod section of the described body of rod is also arranged with a spacing Kato, and what spacing Kato one end was circumferentially provided with that rear port one end of sleeve pipe clamps down on by several protects claw, and the stage portion of the spacing Kato other end and the body of rod offsets.
Preferably, the wall of described spacing Kato is provided with several U-shaped breach.
Preferably, described sleeve pipe comprises and is positioned at middle part and external diameter is greater than the middle circle pipeline section of the leading section external diameter of drill bit, the front-end-cone pipeline section of cone structure is formed between front port and middle circle pipeline section, form the rear end Taper Pipe section of cone structure between rear port and middle circle pipeline section, and the external diameter of rear port is less than the external diameter of middle circle pipeline section.
Preferably, on described sleeve pipe longitudinal slotting structure opposite side and be positioned at front port one end and be provided with balance sealing.
Preferably, the described body of rod is can the hollow structure of slip casting.
Preferably, the described body of rod is solid construction.
Preferably, the described body of rod and drill bit are welded to connect.
Owing to have employed technique scheme, the invention has the beneficial effects as follows:
The automatic anchor pole of a kind of Fast Installation of the present invention, by being provided with the rearward end of cone structure on drill bit, and coordinate with expandable sleeve pipe, formation can the structure of extrusion expansion, fitted by the inner surface of bushing outer surface and boring and rub and be fixed in hole, anchor pole can not drop, and is convenient to follow-up cement injection and fixes further; Drill bit is held concurrently as wedge shape rises shell head, facilitates Shi Hanzhang, cost-saving; And casing length is shorter, relative to the sleeve pipe of the existing long structure such as with the body of rod, save production cost, chip removal is convenient;
The body of rod section of sheathed sleeve pipe adopts polished rod structure, and the bits slag produced when drill bit creeps into is discharged through longitudinal slotting structure of sleeve pipe, relative to the full thread section bar structure of prior art, can not amass because considering to be worth doing slag muck and occur stuck phenomenon between the body of rod of polished rod section and sleeve pipe.
Accompanying drawing explanation
Fig. 1 is automatic anchor pole structural representation of the present invention.
Fig. 2 is automatic anchor pole partial structurtes schematic diagram of the present invention.
Fig. 3 is bar structure schematic diagram of the present invention.
Fig. 4 is sleeve structure schematic diagram of the present invention.
Mark in figure: 10-drill bit, 11-leading section, 12-rearward end, the 20-body of rod, 21-drill bit retaining thread section, 22-polished rod section, 23-main body screw section, 24-stage portion, 30-sleeve pipe, 31-front-end-cone pipeline section, 32-middle circle pipeline section, 33-rear end Taper Pipe section, 34-front port, 35-rear port, 36-balances sealing, the spacing Kato of 40-, 41-protects claw, 42-U type breach.
Detailed description of the invention
With reference to Fig. 1-4, the automatic anchor pole of a kind of Fast Installation of the present invention, comprises the body of rod 20, and is fixed on the drill bit 10 of the body of rod 20 end, the body of rod 20 be can the hollow structure of slip casting also can solid construction.
The body of rod 20 comprises drill bit retaining thread section 21, polished rod section 22 and main body screw section 23 successively from one end of fixed drill bit 10 to the other end, the body of rod 20 of polished rod section 22 being arranged with the sleeve pipe 30 of a longitudinally slotting structure, between polished rod section 22 and main body screw section 23, being provided with the stage portion 24 for sleeve pipe 30 being limited in polished rod section 22 side.Drill bit 10 is threaded with the body of rod by drill bit retaining thread end 21, and the mode be welded to connect also can be adopted to be fixedly connected with the body of rod.
Drill bit 10 comprises the leading section 11 for holing, and drill bit 10 is fixed on the rearward end 12 of drill bit retaining thread section 21 of the body of rod 20, and rearward end 12 adopts the external diameter diminishing cone structure in leading section 11 dorsad.
Sleeve pipe 30 has towards the front port 34 of drill bit 10 one end and the rear port 35 towards main body screw section 23 one end, the internal diameter of the front port 34 of sleeve pipe 30 is less than leading section 11 external diameter of drill bit 10, be greater than the external diameter of the miner diameter end of rearward end 12, the external diameter in the middle part of sleeve pipe 30 is greater than leading section 11 external diameter of drill bit 10.
By device drives such as rigs, it rotates the body of rod 20, holed by the drill bit 10 being positioned at end, in the process of creeping into, the bits slag that drill bit 10 produces constantly is discharged backward through longitudinal slotting structure of sleeve pipe 30, be greater than the external diameter of the leading section 11 of drill bit 10 due to the external diameter in the middle part of sleeve pipe 30, sleeve pipe 30 is extruded, and longitudinal slotting structure produces certain contraction, but can not be completely closed, still can will consider slag to be worth doing from longitudinal slotting structure and discharge.Because sleeve pipe 30 has very strong elasticity, after sleeve pipe 30 is extruded, then can be close to the inner surface of boring, under the effect of frictional force, sleeve pipe 30, in the process of creeping into, can not produce rotation; This section of body of rod 20 is polished rod structure simultaneously, and bits slag, when through sleeve pipe 30, there will not be stuck phenomenon.
After having crept into, drill bit 10 passes through end 12 thereafter and is inserted into the front port 34 of sleeve pipe 30, dilating effect is played to front port 34, such sleeve pipe 30 is expanded, thus increase the frictional force that sleeve pipe 30 has boring inner surface, whole automatic anchor pole can not being dropped out in boring, making automatic anchor pole be particularly useful for permanent position for being inclined upwardly, or the situation of automatic anchor pole lifting uses, and can Shi Hanzhang.The rearward end 12 of drill bit 10 is designed to cone structure, can be inserted in the front port 34 of sleeve pipe 30 so easily, can form the effect expanded gradually simultaneously.
In order to better polished rod section 22 one end can be limited in by sleeve pipe 30, the polished rod section 22 of the body of rod 20 is also arranged with a spacing Kato 40, what spacing Kato 40 one end was circumferentially provided with that rear port 35 one end of sleeve pipe 30 clamps down on by several protects claw 41, and the stage portion 24 of spacing Kato 40 other end and the body of rod 20 offsets.Offseted by spacing Kato 40 one end and stage portion 24, sleeve pipe 30 is clamped down on by the claw 41 that protects of the other end, in the process of creeping at the body of rod 20 like this, promotes spacing Kato 40 by stage portion 24, and then drags sleeve pipe 30 and move forward.
When in drilling process, sleeve pipe 30 is extruded, if longitudinal slotting structure of sleeve pipe 30 is completely closed, like this, bits slag also by entering from the front port 34 of sleeve pipe 30, can be discharged from rear port 35, but due to the existence of limited location Kato 40, have a certain impact to the discharge tool of bits slag, therefore on the wall of spacing Kato 40, be provided with several U-shaped breach 42, considering slag like this to be worth doing can conveniently discharge from U-shaped breach 42.
Sleeve pipe 30 comprises and is positioned at middle part and external diameter is greater than the middle circle pipeline section 32 of leading section 11 external diameter of drill bit 10, the front-end-cone pipeline section 31 of cone structure is formed between front port 34 and middle circle pipeline section 32, form the rear end Taper Pipe section 33 of cone structure between rear port 35 and middle circle pipeline section 32, and the external diameter of rear port 35 is less than the external diameter of middle circle pipeline section 32.After having crept into, automatic anchor pole can be in suspension status under the effect of frictional force, the rearward end 12 that the front port 34 of sleeve pipe 30 can be subject to drill bit 10 extrudes, and therefore the front-end-cone pipeline section 31 of sleeve pipe 30 is designed to cone structure, makes the dilating effect of drill bit 10 pairs of sleeve pipes 30 more obvious.
On sleeve pipe 30 longitudinal slotting structure opposite side and be positioned at front port 34 one end be provided with balance sealing 36, prestressing force can be provided for stretch-draw.
After automatic anchor pole pierces, by the body of rod 20 slip castings of hollow, slurries enter into drill bit 10 by the inside of the body of rod 20, and then flow out from drill bit 10, flow to the body of rod 20 outside, the body of rod 20 is wrapped up, complete the final fixing of automatic anchor pole, the body of rod 20 is wrapped up by mud, uses for a long time, also there will not be the phenomenon of getting rusty.
Claims (8)
1. an automatic anchor pole for Fast Installation, comprises the body of rod (20), and is fixed on the drill bit (10) of the body of rod (20) end, it is characterized in that,
The described body of rod (20) comprises drill bit retaining thread section (21), polished rod section (22) and main body screw section (23) successively from one end of fixed drill bit (10) to the other end, the body of rod (20) of polished rod section (22) being arranged with the sleeve pipe (30) of a longitudinally slotting structure, between polished rod section (22) and main body screw section (23), being provided with the stage portion (24) for sleeve pipe (30) being limited in polished rod section (22) side;
Described drill bit (10) comprises the leading section (11) for holing, and drill bit (10) being fixed on the rearward end (12) of drill bit retaining thread section (21) of the body of rod (20), rearward end (12) adopts external diameter leading section (11) diminishing cone structure dorsad;
Described sleeve pipe (30) has the front port (34) towards drill bit (10) one end and the rear port (35) towards main body screw section (23) one end, the internal diameter of the front port (34) of sleeve pipe (30) is less than leading section (11) external diameter of drill bit (10), be greater than the external diameter of the miner diameter end of rearward end (12), the external diameter at sleeve pipe (30) middle part is greater than leading section (11) external diameter of drill bit (10).
2. automatic anchor pole according to claim 1, it is characterized in that, the polished rod section (22) of the described body of rod (20) is also arranged with a spacing Kato (40), what spacing Kato (40) one end was circumferentially provided with that several rear ports by sleeve pipe (30) (35) one end clamps down on protects claw (41), and the stage portion (24) of spacing Kato (40) other end and the body of rod (20) offsets.
3. automatic anchor pole according to claim 2, is characterized in that, the wall of described spacing Kato (40) is provided with several notch parts (42).
4. automatic anchor pole according to claim 1, it is characterized in that, described sleeve pipe (30) comprises and is positioned at middle part and external diameter is greater than the middle circle pipeline section (32) of leading section (11) external diameter of drill bit (10), the front-end-cone pipeline section (31) of cone structure is formed between front port (34) and middle circle pipeline section (32), form rear end Taper Pipe section (33) of cone structure between rear port (35) and middle circle pipeline section (32), and the external diameter of rear port (35) is less than the external diameter of middle circle pipeline section (32).
5. automatic anchor pole according to claim 1, is characterized in that, the opposite side of the upper longitudinal slotting structure of described sleeve pipe (30) and be positioned at front port (34) one end and be provided with balance sealing (36).
6. automatic anchor pole according to claim 1, is characterized in that, the described body of rod (20) is can the hollow structure of slip casting.
7. automatic anchor pole according to claim 1, is characterized in that, the described body of rod (20) is solid construction.
8. automatic anchor pole according to claim 1, is characterized in that, the described body of rod (20) and drill bit (10) are welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510819793.4A CN105443150A (en) | 2015-11-23 | 2015-11-23 | Self-drilling anchor rod capable of rapidly mounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510819793.4A CN105443150A (en) | 2015-11-23 | 2015-11-23 | Self-drilling anchor rod capable of rapidly mounting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105443150A true CN105443150A (en) | 2016-03-30 |
Family
ID=55553732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510819793.4A Pending CN105443150A (en) | 2015-11-23 | 2015-11-23 | Self-drilling anchor rod capable of rapidly mounting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443150A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387143A (en) * | 2017-08-30 | 2017-11-24 | 成都现代万通锚固技术有限公司 | One kind frictionally secures formula anchor pole |
| CN109113774A (en) * | 2018-10-31 | 2019-01-01 | 浙江交通职业技术学院 | A kind of clamping structure of anchor pole anti-dropout |
| CN112664251A (en) * | 2020-12-30 | 2021-04-16 | 开滦（集团）有限责任公司 | Hydraulic expansion type grouting anchor rod and anchoring method |
| CN114439524A (en) * | 2021-12-28 | 2022-05-06 | 杭州图强工程材料有限公司 | Anchor rod device |
| CN114439522A (en) * | 2021-12-28 | 2022-05-06 | 杭州图强工程材料有限公司 | Improved anchor rod device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1224375A1 (en) * | 1999-10-29 | 2002-07-24 | Sandvik AB (publ) | Self drilling roof bolt |
| CN101054901A (en) * | 2007-06-19 | 2007-10-17 | 郑晓雯 | Bush bulging shell type self-drilling hollow anchor rod |
| CN101802420A (en) * | 2007-09-14 | 2010-08-11 | 长年Tm公司 | Self-drilling anchor |
| CN202991077U (en) * | 2012-11-30 | 2013-06-12 | 上海旭尧玻璃钢制品有限公司 | Automatic drilling type hollow grouting anchor rod |
| CN203081475U (en) * | 2013-02-21 | 2013-07-24 | 浙江普泰克金属制品有限公司 | Multiple anti-corrosion type self-boring hollow grouting anchor rod |
-
2015
- 2015-11-23 CN CN201510819793.4A patent/CN105443150A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1224375A1 (en) * | 1999-10-29 | 2002-07-24 | Sandvik AB (publ) | Self drilling roof bolt |
| CN101054901A (en) * | 2007-06-19 | 2007-10-17 | 郑晓雯 | Bush bulging shell type self-drilling hollow anchor rod |
| CN101802420A (en) * | 2007-09-14 | 2010-08-11 | 长年Tm公司 | Self-drilling anchor |
| CN202991077U (en) * | 2012-11-30 | 2013-06-12 | 上海旭尧玻璃钢制品有限公司 | Automatic drilling type hollow grouting anchor rod |
| CN203081475U (en) * | 2013-02-21 | 2013-07-24 | 浙江普泰克金属制品有限公司 | Multiple anti-corrosion type self-boring hollow grouting anchor rod |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387143A (en) * | 2017-08-30 | 2017-11-24 | 成都现代万通锚固技术有限公司 | One kind frictionally secures formula anchor pole |
| CN109113774A (en) * | 2018-10-31 | 2019-01-01 | 浙江交通职业技术学院 | A kind of clamping structure of anchor pole anti-dropout |
| CN112664251A (en) * | 2020-12-30 | 2021-04-16 | 开滦（集团）有限责任公司 | Hydraulic expansion type grouting anchor rod and anchoring method |
| CN114439524A (en) * | 2021-12-28 | 2022-05-06 | 杭州图强工程材料有限公司 | Anchor rod device |
| CN114439522A (en) * | 2021-12-28 | 2022-05-06 | 杭州图强工程材料有限公司 | Improved anchor rod device |
| CN114439522B (en) * | 2021-12-28 | 2024-09-17 | 杭州图强工程材料有限公司 | Improved anchor rod device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160330 |
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| RJ01 | Rejection of invention patent application after publication |