CN103161483B - Jacking device of anchor cable - Google Patents
Jacking device of anchor cable Download PDFInfo
- Publication number
- CN103161483B CN103161483B CN201310103410.4A CN201310103410A CN103161483B CN 103161483 B CN103161483 B CN 103161483B CN 201310103410 A CN201310103410 A CN 201310103410A CN 103161483 B CN103161483 B CN 103161483B
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- China
- Prior art keywords
- jacking
- anchor cable
- sleeve pipe
- ring
- jacking sleeve
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Abstract
The invention discloses a jacking device of an anchor cable. The jacking device of the anchor cable is characterized in that the jacking device of the anchor cable is provided with a pole arm, a pipe hole of a fixing sleeve and a pipe hole of a jacking sleeve are respectively arranged at two ends of the pole arm, the fixing sleeve is fixedly welded on the pipe hole of the fixing sleeve, and the jacking sleeve is fixedly welded in the pipe hole of the jacking sleeve to form a jacking mechanism. A drill stem of an anchor cable drilling machine head is sleeved at the pipe bottom of the fixing sleeve and inserted in the fixing sleeve, and the jacking sleeve is used for being sleeved at the tail portion of the anchor cable. The jacking device of the anchor cable is based on not changing the original anchor cable drilling machine structure, an exposure section of the anchor cable is arranged in the jacking pipe to be equal to reducing the height of the drilling machine, wherein the length of the exposure section of the anchor cable is a little shorter than that of an anchoring, an operation space of the anchoring of the anchor cable is enlarged, processes that the drilling machine is sat below and workers push the anchor cable are avoided, and meanwhile the anchor cable is prevented from bending in the pushing process and even leaping out to hurt the workers.
Description
Technical field
The present invention relates to a kind of underground coal mine anchor cable jacking auxiliary implement.
Background technology
Along with the development of China's coal-mine bolt support technology, roof bolting with barand wire mesh technology is popularity application in roadway support, and anchor cable is widely used in colliery tunnel support.Cable bolting utilizes resin anchoring agent anchoring as interior anchor, steel strand are as force transferring structure, the accessory such as backing plate, ground tackle is as outer anchor, pretightning force is applied by anchorage cable stretching instrument tension steel strand exposed junction, roadway surrounding rock surface pressing is transferred to country rock depths by steel strand, thus realizes roadway support.
At present, the anchor cable used in China's coal-mine belongs to small-bore resin anchoring prestress anchorage cable, be adopt pneumatic anchor cable rig complete punching, stirring and the operation such as installation.In practical application, directly affects anchorage cable anchoring length because of the following problem existed in anchor cable installation process, safety and efficiency be installed:
1, spatial altitude and the inharmonic problem of anchor cable protruded length
The height of current coal mine roadway is substantially at 2800-3500mm, and for ensureing promptness and the safety of roadway support, most anchor cable is all immediately following construction of meeting head on.In order to the easy construction of other support process, generally in construction the broken cash of meeting head on or coal not to be gone out to the greatest extent, and leave part float coal or step as working platform, now head-room is generally at 2000-2500mm.Tunnel average height 2200mm deducts the minimum constructive height of rig about 1400mm, and the height leaving anchor cable construction for is only about 800mm.According to safety of coal mines operational procedure, when adopting resin anchoring, anchor cable least anchorage length wants >=1500mm, and corresponding anchor cable protruded length >=1500mm, much larger than construction height 800mm.For solving the problem, in anchorage cable anchoring process, the artificial planted agent of general employing is following sits anchor cable rig, manually repeatedly push steel strand, undercover work amount can be increased like this, manually push difficulty, the problem such as waste time and energy, when the anchorage length of designing requirement is larger, anchor cable is directly caused to be installed unsuccessfully sometimes.
2, there is potential safety hazard in anchor cable installation process
There is propelling movement resistance in steel strand whipping process, the steel strand exposing overall length >=1500mm can bend, and now the bending steel strand with rotating affect rig stability, there are steel strand and eject the potential safety hazard of hurting sb.'s feelings.
Summary of the invention
The present invention is the weak point for avoiding existing for above-mentioned prior art, provides a kind of anchor cable jacking device, and one is when working space height and drill height are fixed, and increases the operating space that anchor cable is installed and stirred; Two are to provide the possibility strengthening anchorage cable anchoring length further; Three is reduce labor strength, improves efficiency of construction and safety.
The present invention is that technical solution problem adopts following technical scheme:
The design feature of anchor cable jacking device of the present invention is: arrange cross-arm, fixed sleeving pore and jacking bushing well are set respectively at the two ends of cross-arm, and have that fixed sleeving is fixedly welded in fixed sleeving pore, jacking sleeve pipe is fixedly welded in jacking bushing well, form jacking mechanism; Bottom the pipe of the drill rod sleeve self-retaining sleeve pipe of anchor cable rig head, socket joint is in described fixed sleeving, and described jacking sleeve pipe is used for being sleeved on anchor cable afterbody.
The design feature of anchor cable jacking device of the present invention is also:
Built-in jacking tube in described jacking sleeve pipe, described anchor cable afterbody is sleeved in described jacking tube; Arrange the extension elongation of described jacking tube in jacking sleeve pipe can regulate.
The sidewall of described jacking sleeve pipe arranges the axial long hole of through jacking sleeve side walls, the Basolateral wall of described jacking tube is fixed welding one regulating block, described regulating block leans out in jacking sleeve side walls axial long hole, and protrudes from the lateral wall of described jacking sleeve pipe; On the lateral wall of described jacking sleeve pipe, be on different axial locations and be respectively arranged with rotating back-up ring, described back-up ring is the back-up ring being set to opening in the axial direction, rotating back-up ring can make its opening overlap with the axial long hole on short tube opening and jacking sleeve side walls regulating block can be passed through in described opening, or opening and described axial long hole misplace that regulating block is obtained on back-up ring mutually and support.
Arranging described back-up ring is female thread structure, and the correspondence position lateral wall of described jacking sleeve pipe is external thread structure, is threaded engagement between back-up ring and jacking sleeve pipe.
The present invention is on the basis not changing original anchor cable rig structure, by the anchor cable revealed section being slightly shorter than anchorage length is placed in jacking tube, be equal to and reduce drill height, increase anchorage cable anchoring operating space, avoid lower operation of sitting rig and artificial pushing tow anchor cable, can prevent bending even eject of anchor cable in pushing tow process from hurting sb.'s feelings simultaneously.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention is on the basis not changing original anchor cable rig structure, increase effectively anchor cable and installs the operating space of stirring;
2, the present invention can increase anchorage cable anchoring length, improves the reliability of anchorage cable anchoring;
3, the present invention effectively can reduce the labour intensity installing anchor cable, improves coal mine roadway anchor cable construction efficiency and safety;
4, anchor cable jacking device processing of the present invention is simple, easy to install, and adaptive capacity to environment is strong.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is guide ring position of the present invention structural representation;
Number in the figure: 1 fixed sleeving; 2 cross-arms; 3 jacking sleeve pipes; 4 jacking tubes; 5 axial long holes; 6 regulating blocks; 7 back-up rings; 8 external screw thread lassos; 9 drill rod sleeve; 10 rig heads; 11 rig cylinders; 12 anchor cables; 13 anchor cable borings.
Detailed description of the invention
See Fig. 1, the form of structure of the present embodiment stream line jacking device is: arrange cross-arm 2, fixed sleeving pore and jacking bushing well are set respectively at the two ends of cross-arm 2, and have that fixed sleeving 1 is fixedly welded in fixed sleeving pore, jacking sleeve pipe 3 is fixedly welded in jacking bushing well, form jacking mechanism; Bottom the pipe of the drill rod sleeve 9 self-retaining sleeve pipe 1 on anchor cable rig head 10, socket joint is in fixed sleeving 1, and jacking sleeve pipe 3 is for being sleeved on the afterbody of anchor cable 12.
In concrete enforcement, corresponding vibrational power flow also can be:
As depicted in figs. 1 and 2, in order to the anchor cable of different length can be adapted to, can in jacking sleeve pipe 3 built-in jacking tube 4, anchor cable afterbody is sleeved in jacking tube 4; Arrange the extension elongation of jacking tube 4 in jacking sleeve pipe 3 for regulating, the bottom of jacking sleeve pipe 3 is closed, and the bottom of jacking tube 4 is uncovered.
In order to realize the adjustment of jacking tube 4 extension elongation in jacking sleeve pipe 3, the sidewall of jacking sleeve pipe 3 arranges the axial long hole 5 of through jacking sleeve side walls, the lateral wall of jacking tube is fixed welding one regulating block 6, regulating block 6 leans out in axial long hole 5, and protrudes from the lateral wall of jacking sleeve pipe 3; On the lateral wall of jacking sleeve pipe 3, be on different axial locations and be respectively arranged with rotating back-up ring respectively, back-up ring is the split washer being set to opening in the axial direction, rotating back-up ring can make its opening overlap regulating block can be passed through in opening with the axial long hole on short tube opening and jacking sleeve side walls, or opening and axial long hole mutual dislocation support to make regulating block obtain on back-up ring.
In concrete enforcement, back-up ring 7 is set for female thread structure, the correspondence position lateral wall of jacking sleeve pipe 3 is external thread structure, it is threaded engagement between back-up ring 7 and jacking sleeve pipe 3, shown in Fig. 2, in order to guaranteed strength in the present embodiment, and be convenient to external thread structure formation, the lateral wall correspondence position of jacking sleeve pipe 3 is fixed welding one section of external screw thread lasso 8, external thread structure for matching with back-up ring 7 is formed in external screw thread lasso 8, back-up ring structure shown in figure is provided with two groups vertically, the extension elongation of the jacking tube that can regulate as required in practical application and determining.
Construction method:
1, by projected depth construction anchor cable boring 13;
2, fixed sleeving 1 is arranged in the drill rod sleeve 9 of rig gyrator 10;
3, in anchor cable boring 13, resin anchoring agent is put into by the anchorage length of design, bottom the hole with steel strand Anchor Agent being pushed into anchor cable boring;
4, jacking tube 4 is inserted in jacking sleeve pipe 3, regulates the height of jacking tube 4 and supported to implement to fix by back-up ring 7 pairs of regulating blocks; Jacking tube is sleeved on the afterbody exposing to the outside steel strand of anchor cable boring;
5, rig is started, rig cylinder 11 stretches out and rig head is raised, and drives jacking tube to rise and the top of steel strand is thrust in Anchor Agent, until when the protruded length of steel strand can be suitable for directly carrying out jacking on anchor cable rig, whereabouts anchor cable rig, unloads anchor cable jacking device;
6, again routinely steel strand are connected with rig by anchor cable agitator, again start rig, agitating resin, while advance steel strand, until steel strand arrive at the bottom of hole, complete the installation of anchor cable 12.
Claims (4)
1. an anchor cable jacking device, it is characterized in that: cross-arm (2) is set, at the two ends of cross-arm (2), fixed sleeving pore and jacking bushing well are set respectively, and have that fixed sleeving (1) is fixedly welded in fixed sleeving pore, jacking sleeve pipe (3) is fixedly welded in jacking bushing well, form jacking mechanism; Bottom the pipe of the drill rod sleeve self-retaining sleeve pipe (1) of anchor cable rig head, socket joint is in described fixed sleeving (1), and described jacking sleeve pipe (3) is for being sleeved on anchor cable afterbody.
2. anchor cable jacking device according to claim 1, is characterized in that: built-in jacking tube (4) in described jacking sleeve pipe (3), and described anchor cable afterbody is sleeved in described jacking tube (4); Arrange the extension elongation of described jacking tube (4) in jacking sleeve pipe (3) can regulate.
3. anchor cable jacking device according to claim 2, it is characterized in that: the axial long hole that through jacking sleeve side walls is set on the sidewall of described jacking sleeve pipe (3), the Basolateral wall of described jacking tube (4) is fixed welding one regulating block, described regulating block leans out in jacking sleeve side walls axial long hole, and protrudes from the lateral wall of described jacking sleeve pipe (3); On the lateral wall of described jacking sleeve pipe (3), be on different axial locations and be respectively arranged with rotating back-up ring, described back-up ring is the back-up ring being set to opening in the axial direction, rotating back-up ring can make its opening overlap with the axial long hole on short tube opening and jacking sleeve side walls regulating block can be passed through in described opening, or opening and described axial long hole misplace that regulating block is obtained on back-up ring mutually and support.
4. anchor cable jacking device according to claim 3, it is characterized in that: arranging described back-up ring is female thread structure, the correspondence position lateral wall of described jacking sleeve pipe (3) is external thread structure, is threaded engagement between back-up ring and jacking sleeve pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103410.4A CN103161483B (en) | 2013-03-27 | 2013-03-27 | Jacking device of anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103410.4A CN103161483B (en) | 2013-03-27 | 2013-03-27 | Jacking device of anchor cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103161483A CN103161483A (en) | 2013-06-19 |
| CN103161483B true CN103161483B (en) | 2015-05-06 |
Family
ID=48584978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310103410.4A Expired - Fee Related CN103161483B (en) | 2013-03-27 | 2013-03-27 | Jacking device of anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103161483B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272943Y (en) * | 1996-10-21 | 1998-01-21 | 招远市河西金矿 | Long anchor cable feeding machine |
| JP2004116207A (en) * | 2002-09-27 | 2004-04-15 | Furukawa Co Ltd | Holding device for feed rope |
| SE531009C2 (en) * | 2005-05-03 | 2008-11-18 | Atlas Copco Rock Drills Ab | Device and method for installing a rock bolt and a rock bolt installation rig |
| AU2009201533B2 (en) * | 2009-04-20 | 2015-02-19 | Joy Global Underground Mining Llc | Roof Bolting Cable Bolt Feeding Device |
| CN202431183U (en) * | 2012-01-03 | 2012-09-12 | 合肥航天液压机械有限公司 | Anchor rod drilling machine |
-
2013
- 2013-03-27 CN CN201310103410.4A patent/CN103161483B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103161483A (en) | 2013-06-19 |
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Granted publication date: 20150506 Termination date: 20160327 |
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| CF01 | Termination of patent right due to non-payment of annual fee |