CN105401882A - Roadway anchor hole hole-bottom reaming device - Google Patents
Roadway anchor hole hole-bottom reaming device Download PDFInfo
- Publication number
- CN105401882A CN105401882A CN201510978860.7A CN201510978860A CN105401882A CN 105401882 A CN105401882 A CN 105401882A CN 201510978860 A CN201510978860 A CN 201510978860A CN 105401882 A CN105401882 A CN 105401882A
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- CN
- China
- Prior art keywords
- blade
- drilling tool
- rotating blade
- push rod
- hole
- 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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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
Abstract
The invention belongs to the field of supports in coal mines, and discloses a roadway anchor hole hole-bottom reaming device, comprising a support connecting rod (3), rotating cutters (5), a cutter connecting spring pin (6), a push rod (7), a cutter support sleeve (8), and a drilling tool handle (10). The first end of the push rod (7) is provided with a plurality of rotating cutters (5). One end (5) of the rotating cutter (5) is connected with the push rod (7) through the support connecting rod (3), and the other end is connected with the drilling tool handle (10) which is on the second end of the support connecting rod (3) through the cutter support sleeve (8). The drilling tool handle (10) pushes the push rod (7) to move under the action of external forces, so as to apply external forces on the rotating cutters (5), so the rotating cutters (5) expand rotating radius outward. The device improves binding power of a roadway anchoring agent and drill hole surrounding rocks, improves anchoring system stability, and has significance on controlling occurrence of wall caving and roof collapse accidents in an anchor bolt support roadway.
Description
Technical field
The invention belongs to coal mine support field, relate to Counterboring apparatus at the bottom of anchor hole hole, a kind of tunnel.
Background technology
In recent years, bolt support technology is because its cost is low, construction technology is simple, speed of application is fast and one of main support form becoming colliery tunnel support, and playing an important role to underworkings stability, is a revolution of China's coal-mine roadway support.Bolt support is anchored on rock mass stability by the front end of anchor pole (anchor head), axial pre tightening force is applied by the acting in conjunction of anchor rod pallet board and pre-load nut to the body of rod on the one hand at body of rod afterbody (anchor tail), thus suppress roadway surrounding rock along body of rod axial deformation, prevention surrounding rock separation layer; Within the scope of body of rod self-strength opposing anchoring, rock stratum produces the slippage sliding deformation along plane of weakness on the other hand.
In existing bolt support technology construction, the installation anchoring procedure of anchor pole is generally: first use " drill bit-drilling rod-rig " device matched with anchor rod body diameter, the country rock of rockbolt installation position sets the unified anchor hole of diameter, the Anchor Agent of certain specification is put at the bottom of hole in anchor hole, anchor pole is pushed in anchor hole, anchor pole is driven to rotate until Anchor Agent stirs with rig, after Anchor Agent solidification, finally form " hole wall country rock-Anchor Agent-body of rod " this anchor rod anchored system within the scope of certain length at the bottom of anchor hole hole.
Adopt the anchor hole diameter of common process construction unified, without reducing feature, when anchor pole bears axial tension, bonding between anchor pole and Anchor Agent is comparatively tight, but the shear stress formed between Anchor Agent and anchor hole along anchor hole axis, when the shear stress that its adhesive surface place provides is enough to overcome anchor pole axial tension stress, guarantee anchor pole is in effective support duty all the time.But because the roadway surrounding rock within the scope of certain depth is all subject to driving, mining influence in various degree, cause coal and rock integrality within the scope of this poor, relatively soft, broken, supporting capacity reduces greatly.Therefore, when this type of roadway surrounding rock adopts common process to carry out bolt support, the pore wall strength of anchor hole is not enough, adhesive surface between Anchor Agent and hole wall, easily destroy under shear stress effect, " anchor pole-Anchor Agent " is departed from from the country rock hole wall of bonding, causes fastening invalidation, thus the security incident such as fall of ground, wall caving occurs.
Summary of the invention
Causing the adhesive surface between Anchor Agent and hole wall to destroy to solve in existing anchoring because anchor hole pore wall strength is not enough, finally causing the problem that anchor system lost efficacy, the invention provides Counterboring apparatus at the bottom of anchor hole hole, a kind of tunnel.
The technical solution used in the present invention is: Counterboring apparatus at the bottom of anchor hole hole, a kind of tunnel, comprise: drilling tool top cap, straight pin, support link, rod spring pin, rotating blade, blade linking springs pin, push rod, blade support cover, spring, drilling tool handle and bayonet lock, the first end of described push rod is provided with multiple rotating blade, one end of described rotating blade is connected with push rod by support link, described drilling tool moves promoting described push rod under external force, apply external force to described rotating blade, described rotating blade is made outwards to expand radius of gyration; The other end of described rotating blade is connected with blade support cover by blade linking springs pin, described support link is connected with rotating blade by straight pin, described support link is connected by rod spring pin with between push rod, the other end of described push rod is connected with blade support cover, described blade support cover and drilling tool are being connected, described bayonet lock is arranged on described drilling tool upper, for connecting driving rig;
Described spring be arranged on described blade support cover and drilling tool between, for blade support cover and drilling tool handle being strutted when off working state,
Time in working order, described rotating blade, push rod, blade support cover and drilling tool rotate relative to drilling tool top cap under the driving driving rig.
Preferably, described drilling tool handle and blade support cover external cylindrical surface are provided with helicla flute, and the ground be convenient to rotating blade cuts is carried.
Preferably, described rotating blade is provided with lance tooth, and there is chamfering the front end of rotating blade.
Preferably, the flank of tooth camber of described rotating blade.
Preferably, described rotating blade and horizontal sextant angle are 0-45 °.
Advantage of the present invention and beneficial effect are: the present invention can be reduced in the poor country rock of integrality anchor pole of constructing, the probability of fastening invalidation is caused because the adhesion stress between Anchor Agent and boring country rock is not enough, increase Bolt System stability in the country rock soft, broken, integrality is poor, to controlling bolt support class tunnel wall caving, being significant of roof fall accident.In addition, in coal industry stagnant today, there is this technology can improve single anchor rod anchoring scope, reduced bolt interval, thus bolt support class roadway construction speed can be improved, reduced support cost.
Accompanying drawing explanation
Fig. 1 is principle of the invention structural representation;
Fig. 2 is the structural representation of drilling tool handle of the present invention;
Fig. 3 is pusher structure schematic diagram of the present invention;
Fig. 4 is rotating blade structural representation of the present invention;
Fig. 5 is rotating blade lateral view of the present invention;
Structural representation when Fig. 6 is overall work state of the present invention;
Structural representation when Fig. 7 is the present invention's entirety off working state.
1, drilling tool top cap; 2, straight pin; 3, support link; 4, rod spring pin; 5, rotating blade; 6, blade linking springs pin; 7, push rod; 8, blade support cover; 9, spring; 10, drilling tool handle; 11, bayonet lock.
Detailed description of the invention
Be further described the specific embodiment of the present invention below in conjunction with drawings and Examples, following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in figs. 1-7, for the structural representation of an embodiment of the present invention, at the bottom of anchor hole hole of the present invention, Counterboring apparatus comprises: drilling tool top cap 1, straight pin 2, support link 3, rod spring pin 4, rotating blade 5, blade linking springs pin 6, push rod 7, blade support cover 8, spring 9, drilling tool is 10 and bayonet lock 11, the first end of described push rod 7 is provided with multiple rotating blade 5, one end of described rotating blade 5 is connected with push rod 7 by support link 3, described drilling tool promotes described push rod 7 under external force 10 and moves, external force is applied to give described rotating blade 5, described rotating blade 5 is made outwards to expand radius of gyration, the other end of described rotating blade 5 overlaps 8 by blade linking springs pin 6 and blade support and is connected, described support link 3 is connected with rotating blade 5 by straight pin 2, described support link 3 is connected by rod spring pin 4 with between push rod 7, the other end and the blade support of described push rod 7 are overlapped 8 and are connected, described blade support cover 8 is connected 10 with drilling tool, described bayonet lock 11 is arranged on described drilling tool on 10, for connecting driving rig,
Described spring 9 is arranged on described blade support cover 8 and drilling tool between 10, for blade support is overlapped when off working state 8 and drilling tool strut 10,
Time in working order, described rotating blade 5, push rod 7, blade support cover 8 and drilling tool rotate relative to drilling tool top cap 1 under the driving driving rig 10.Time in working order, drilling tool top cap 1 fixedly contacts with crag, drives rig to drive this device to rotate relative to drilling tool top cap 1, increases device lifetime, increase work efficiency.
The present invention improves the adhesion stress between Anchor Agent and boring country rock, increases anchor system stability, to controlling bolt support class tunnel wall caving, being significant of roof fall accident.In coal industry stagnant today, there is this technology can improve single anchor rod anchoring scope, reduced bolt interval, thus bolt support class roadway construction speed can be improved, reduced support cost.
The flank of tooth camber of rotating blade 5 of the present invention, can reduce resistance when contacting with ground, can increase the life-span of blade.
Preferably, described rotating blade 5 is 0-45 ° with horizontal sextant angle.Preferably, described rotating blade 5 is provided with lance tooth, is convenient to cut ground, and there is larger chamfering the front end of rotating blade 5, enters prebored hole better when being convenient to the work of this device.
Drilling tool of the present invention overlaps 8 external cylindrical surfaces 10 and blade support and is provided with helicla flute, is convenient to outside the ground sprocket hole by blade cut; Drilling tool is provided with screwed hole 101 10 front ends, and rear end is provided with pin-and-hole 103; Drilling tool is threaded connection with push rod 7 10, and drilling tool is square the end of the front end of 10 and blade support cover 8, and drilling tool is arranged on the front end of 10 and overlaps in 8 with blade support, can overlap 8 rectilinear motions along blade support.The end of rotating blade 5 overlaps 8 hinged by blade linking springs pin 6 and blade support; One end of support link 3 is hinged with the front end of rotating blade 5 by straight pin 2, and the other end is hinged by rod spring pin 4 and push rod 7 front end; One end and the blade support of spring 9 are overlapped 8 and are connected, and the other end is connected 10 with drilling tool, for blade support cover 8 and drilling tool being strutted 10 during off working state.Rotating blade 5 is provided with lance tooth, is convenient to cut ground.There is larger chamfering the front end of rotating blade 5, for this device when entering prebored hole, the power that ground can give blade downward, blade is not easily stuck or opens, the flank of tooth camber of rotating blade 5, can increase the life-span of blade, bayonet lock 11 is arranged on drilling tool the end of 10, for being connected with the rotary drilling-head of transmission.The front end of blade support cover is provided with drilling tool top cap 1, and drilling tool top cap 1 and blade support are overlapped 8 and can be rotated in a circumferential direction.
As shown in Figure 2, for the structural representation of drilling tool handle of the present invention, drilling tool of the present invention is provided with screwed hole 101 the front end of 10, body is provided with helicla flute 102, pin-and-hole 103 is provided with in rear end, termination 101 is for installing push rod 7, and helicla flute 102 is convenient to outside the ground sprocket hole by blade cut, and pin-and-hole 103 is for installing bayonet lock 11.
As shown in Figure 3, for pusher structure schematic diagram of the present invention, push rod of the present invention comprises blade bearing 71, square bar 72, thread spindle 73, blade bearing 71 is for installing rotating blade 5, square bar 72 cross section is square, be convenient to overlap 8 inner hole with blade support rotate, thread spindle 73 is arranged on cutter in the screwed hole 101 of 10 front ends.
As shown in Figure 4,5, for rotating blade structural representation of the present invention, rotating blade of the present invention comprises chamfering 51, lance tooth 52, arc-shaped tooth 53, the flank of tooth camber of rotating blade 5, resistance can be reduced when contacting with ground, can increase the life-span of blade, described rotating blade and horizontal sextant angle are 0-45 °.
The course of work of the present invention is as follows:
First, use " drill bit-drilling rod-rig " device matched with anchor rod body diameter, Anchor Agent diameter in roadway surrounding rock, get out traditional anchor hole of the bolt support demand degree of depth; Secondly, take out drilling rod, dismounting drill bit, send into after the Counterboring apparatus of the present invention that changes the outfit at the bottom of traditional anchor hole to hole, now, Counterboring apparatus head top cap contacts with country rock at the bottom of traditional anchor hole hole; 3rd, start rig, rig is operated and promotes rig to drive drilling rod to move axially along traditional anchor hole, softened at the rotary lifting effect UR device cutting tip of drilling rod, by externally to cutting drilling country rock at the bottom of hole within the scope of reaming, reach anchor hole bottom outlet reaming object; Finally, after reaming completes, rig stops operating, outwards extract Counterboring apparatus, drilling tool then push rod outward movment can be pulled, now, rotating blade is subject to the pressure of less initial apertures section and the elastic force acting in conjunction of spring, meanwhile, push rod and blade support are overlapped distance and are increased, and make rotating blade along blade linking springs pin rotating shrinking, until in the insert groove of rotating blade all retraction blade support cover, drill bit resets, and extracted from boring by reaming bit, a reaming has circulated.
The above is only preferred embodiments of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. Counterboring apparatus at the bottom of anchor hole hole, a tunnel, it is characterized in that, comprise: drilling tool top cap (1), straight pin (2), support link (3), rod spring pin (4), rotating blade (5), blade linking springs pin (6), push rod (7), blade support cover (8), spring (9), drilling tool is (10) and bayonet lock (11), the first end of described push rod (7) is provided with multiple rotating blade (5), one end of described rotating blade (5) is connected with push rod (7) by support link (3), it is mobile that described drilling tool promotes described push rod (7) under external force (10), external force is applied to give described rotating blade (5), described rotating blade (5) is made outwards to expand radius of gyration, the other end of described rotating blade (5) is connected with blade support cover (8) by blade linking springs pin (6), described support link (3) is connected with rotating blade (5) by straight pin (2), be connected by rod spring pin (4) between described support link (3) with push rod (7), the other end of described push rod (7) is connected with blade support cover (8), described blade support cover (8) is connected (10) with drilling tool, described bayonet lock (11) is arranged on described drilling tool on (10), for connecting driving rig,
Described spring (9) is arranged on described blade support cover (8) and drilling tool between (10), for blade support cover (8) and drilling tool handle (10) being strutted when off working state,
Time in working order, described rotating blade (5), push rod (7), blade support cover (8) and drilling tool rotate (10) under the driving driving rig relative to drilling tool top cap (1).
2. Counterboring apparatus at the bottom of anchor hole hole according to claim 1, is characterized in that, described drilling tool is provided with helicla flute (10) and blade support cover (8) external cylindrical surface, and the ground be convenient to rotating blade cuts is carried.
3. Counterboring apparatus at the bottom of anchor hole hole according to claim 1, is characterized in that, described rotating blade (5) is provided with lance tooth, and there is chamfering the front end of rotating blade.
4. Counterboring apparatus at the bottom of anchor hole hole according to claim 1, is characterized in that, the flank of tooth camber of described rotating blade (5).
5. Counterboring apparatus at the bottom of anchor hole hole according to claim 1, is characterized in that, described rotating blade (5) and horizontal sextant angle are 0-45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510978860.7A CN105401882B (en) | 2015-12-24 | 2015-12-24 | A kind of tunnel anchor hole bottom hole Counterboring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510978860.7A CN105401882B (en) | 2015-12-24 | 2015-12-24 | A kind of tunnel anchor hole bottom hole Counterboring apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105401882A true CN105401882A (en) | 2016-03-16 |
| CN105401882B CN105401882B (en) | 2018-06-15 |
Family
ID=55467598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510978860.7A Expired - Fee Related CN105401882B (en) | 2015-12-24 | 2015-12-24 | A kind of tunnel anchor hole bottom hole Counterboring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105401882B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952380A (en) * | 2016-06-17 | 2016-09-21 | 四川众基精锚工程技术有限公司 | Die chambering equipment and chambering method thereof |
| CN106968604A (en) * | 2017-05-27 | 2017-07-21 | 河南理工大学 | Reamer inside mine anchor rod hole |
| CN107034879A (en) * | 2017-05-07 | 2017-08-11 | 周庆川 | The anchor pole of Telescopic strut for construction structure |
| CN108756759A (en) * | 2018-07-16 | 2018-11-06 | 中铁四院集团西南勘察设计有限公司 | A kind of bottom expanding drill |
| CN110847825A (en) * | 2019-10-31 | 2020-02-28 | 山东科技大学 | Advancing type full-automatic controllable reducing pressure relief connecting rod drill bit device and using method thereof |
| CN111457159A (en) * | 2020-06-22 | 2020-07-28 | 浙江万华建设有限公司 | Jacking pipe jacking equipment |
| CN111648736A (en) * | 2020-06-03 | 2020-09-11 | 中国石油化工股份有限公司 | Diameter-variable mill shoe for well repair and pipe column assembly using same |
| CN113958327A (en) * | 2021-10-20 | 2022-01-21 | 中铁六局集团有限公司 | Shield tunneling machine underground diaphragm wall construction device and construction method thereof |
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| JPS63150102A (en) * | 1986-12-16 | 1988-06-22 | Miyanaga:Kk | Upward enlarged hole section boring device |
| CN1851147A (en) * | 2005-04-22 | 2006-10-25 | 上海电力设计院有限公司 | Anti-pull pile for underground converting station and its use for underground converting station engineering |
| CN202031482U (en) * | 2011-05-13 | 2011-11-09 | 乔国华 | Square piston type anchoring and chambering drilling rig |
| CN205206743U (en) * | 2015-12-24 | 2016-05-04 | 张伟光 | Tunnel anchorage holes hole bottom reaming device |
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2015
- 2015-12-24 CN CN201510978860.7A patent/CN105401882B/en not_active Expired - Fee Related
Patent Citations (4)
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| JPS63150102A (en) * | 1986-12-16 | 1988-06-22 | Miyanaga:Kk | Upward enlarged hole section boring device |
| CN1851147A (en) * | 2005-04-22 | 2006-10-25 | 上海电力设计院有限公司 | Anti-pull pile for underground converting station and its use for underground converting station engineering |
| CN202031482U (en) * | 2011-05-13 | 2011-11-09 | 乔国华 | Square piston type anchoring and chambering drilling rig |
| CN205206743U (en) * | 2015-12-24 | 2016-05-04 | 张伟光 | Tunnel anchorage holes hole bottom reaming device |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952380A (en) * | 2016-06-17 | 2016-09-21 | 四川众基精锚工程技术有限公司 | Die chambering equipment and chambering method thereof |
| CN107034879A (en) * | 2017-05-07 | 2017-08-11 | 周庆川 | The anchor pole of Telescopic strut for construction structure |
| CN107034879B (en) * | 2017-05-07 | 2018-09-07 | 周庆川 | The anchor pole of Telescopic strut for construction structure |
| CN106968604A (en) * | 2017-05-27 | 2017-07-21 | 河南理工大学 | Reamer inside mine anchor rod hole |
| WO2018218900A1 (en) * | 2017-05-27 | 2018-12-06 | 河南理工大学 | Anchor-bolt hole interior reamer used for mining |
| US10633927B2 (en) | 2017-05-27 | 2020-04-28 | Henan Polytechnic University | Internal reamer for anchor shaft hole for mining |
| CN108756759A (en) * | 2018-07-16 | 2018-11-06 | 中铁四院集团西南勘察设计有限公司 | A kind of bottom expanding drill |
| CN110847825A (en) * | 2019-10-31 | 2020-02-28 | 山东科技大学 | Advancing type full-automatic controllable reducing pressure relief connecting rod drill bit device and using method thereof |
| CN111648736A (en) * | 2020-06-03 | 2020-09-11 | 中国石油化工股份有限公司 | Diameter-variable mill shoe for well repair and pipe column assembly using same |
| CN111457159A (en) * | 2020-06-22 | 2020-07-28 | 浙江万华建设有限公司 | Jacking pipe jacking equipment |
| CN113958327A (en) * | 2021-10-20 | 2022-01-21 | 中铁六局集团有限公司 | Shield tunneling machine underground diaphragm wall construction device and construction method thereof |
| CN113958327B (en) * | 2021-10-20 | 2024-03-29 | 中铁六局集团有限公司 | Construction device and construction method for shield tunneling machine underground diaphragm wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105401882B (en) | 2018-06-15 |
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Effective date of registration: 20180511 Address after: 830091 Xinjiang Institute of engineering, 1350 Jinqiao Road, Toutun River District, Urumqi, the Xinjiang Uygur Autonomous Region Applicant after: Xinjiang Institute of Engineering Address before: 830052 Xinjiang road engineering college, 236 Nanchang Road, Sha Sha, Urumqi, the Xinjiang Uygur Autonomous Region Applicant before: Zhang Weiguang |
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