CN104929668B - Anchor cable dismounting joint and anchor cable method for dismounting - Google Patents
Anchor cable dismounting joint and anchor cable method for dismounting Download PDFInfo
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- CN104929668B CN104929668B CN201510358828.9A CN201510358828A CN104929668B CN 104929668 B CN104929668 B CN 104929668B CN 201510358828 A CN201510358828 A CN 201510358828A CN 104929668 B CN104929668 B CN 104929668B
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- anchor cable
- jack
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- strand wires
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Abstract
The present invention provides a kind of anchor cable dismounting joint and anchor cable method for dismounting, the anchor cable dismounting joint is applied to anchor cable, and the anchor cable includes steel strand wires, clamping device and intermediate plate, it is characterised in that, the anchor cable dismounting joint has centre bore, and the steel strand wires are arranged in the centre bore；The one end of the anchor cable dismounting joint along the centre bore axis direction is connected with the clamping device, the other end of the anchor cable dismounting joint is arranged on jack, during so that steel strand wires described in the jack pair carrying out tensioning, the intermediate plate is displaced downwardly in the centre bore, it is easy to operate, it is with low cost, effectively save support cost.
Description
Technical field
The present embodiments relate to anchor cable dismantling technology, more particularly to a kind of anchor cable dismounting joint and anchor cable method for dismounting.
Background technology
Cable bolting as a kind of active support means, with large carrying capacity, it is safe and reliable the features such as, in recent years in state
It is inside and outside to be developed rapidly, at present, extensively should it be obtained in the engineerings such as mine timbering, slope treatment, building foundation pit retaining wall
With.
Because there are some particular locations or some special circumstances in underground coal mine, for example, eye is cut for cable bolting, by
In the presence of anchor cable, working face rear back can not be promoted and inbreak with face of adopting, and easily cause the termination up and down of working face
And the large range of outstanding top in rear, roof control brings difficulty during to preliminary roof caving；Or, underground often occurs because top plate is uneven
Anchor cable installs not positive situation caused by whole, not only have impact on tunnel it is attractive in appearance, do not meet roadway support quality criteria requirements, and
And pallet and the steel strand wires out of plumb of anchor cable due to anchor cable, there is stress concentration and the phenomenon of shear stress, easily cause anchor cable
Steel strand wires loosely deform, anchor cable lose anchor the problems such as, influence supporting quality, therefore, in these particular locations and in particular cases,
Need the support action of in good time releasing anchor cable.At present, for common anchor cable, anchor cable is removed using special anchor restorer, to release
Its support action.
But, anchor cable is removed using special anchor restorer, equipment purchasing expense is not only increased, also, special anchor restorer
Use, it is inconvenient to carry so that equipment control and maintenance cost increase, so as to cause support cost to greatly increase.
The content of the invention
The embodiment of the present invention provides a kind of anchor cable dismounting joint and anchor cable method for dismounting, easy to operate, with low cost, effectively
Save support cost.
The embodiment of the present invention on the one hand a kind of anchor cable dismounting joint is provided, applied to anchor cable, the anchor cable include steel strand wires,
Clamping device and intermediate plate, the anchor cable dismounting joint have centre bore, and the steel strand wires are arranged in the centre bore；
The one end of the anchor cable dismounting joint along the centre bore axis direction is connected with the clamping device, and the anchor cable is torn open
The other end for unloading joint is arranged on jack, during so that steel strand wires described in the jack pair carrying out tensioning, under the intermediate plate
Move in the centre bore.
In an embodiment of the present invention, the anchor cable dismounting joint has step with one end that the clamping device is connected, institute
The shape and the clamping device for stating step match.
In an embodiment of the present invention, between the step of the anchor cable dismounting joint and the side outer rim of the clamping device
Distance is between 1mm~5mm.
In an embodiment of the present invention, it is provided with through hole on the side wall of the anchor cable dismounting joint.
In an embodiment of the present invention, one end that the anchor cable dismounting joint is arranged on jack is and the jack
The end face being engaged.
On the other hand the embodiment of the present invention provides a kind of anchor cable method for dismounting, and methods described is applied to any of the above-described embodiment
On described anchor cable dismounting joint, including：
Below the clamping device that anchor cable dismounting joint is installed on to anchor cable, and the steel strand wires of anchor cable are made to be dismantled through the anchor cable
The centre bore of joint；
Jack is installed on to the lower section of the anchor cable dismounting joint；
The jack is connected with the steel strand wires of the anchor cable, steel strand wires described in the jack pair carry out tensioning, with
The intermediate plate of the anchor cable is displaced downwardly in the centre bore, and separated with the clamping device.
In an embodiment of the present invention, steel strand wires described in the jack pair carry out tensioning, so that the intermediate plate and described
After clamping device separation, methods described also includes：
The jack stops to the steel strand tension；
Extracting tool is stretched into from the through hole on the side wall of the anchor cable dismounting joint, and pulls out the intermediate plate.
In an embodiment of the present invention, steel strand wires described in the jack pair carry out tensioning, specifically include：
The power that the jack is provided by tensioning instrument carries out tensioning to the steel strand wires.
Anchor cable dismounting joint and anchor cable method for dismounting that the present invention is provided, by installing anchor cable below the clamping device of anchor cable
Dismounting joint, and coordinate jack to be connected with the steel strand wires being located in centre bore, when jack pair steel strand wires carry out tensioning,
Steel strand wires can drive intermediate plate to move down into the centre bore of anchor cable dismounting joint so that intermediate plate is separated with clamping device, so as to remove
Anchor cable, to release the support action of anchor cable, it is not necessary to purchase special anchor restorer, moreover, the processing of anchor cable dismounting joint is simple, operation
It is convenient, it is with low cost, effectively save support cost.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the anchor cable dismounting joint that the embodiment of the present invention one is provided；
Fig. 2 is the cross-sectional view for the anchor cable dismounting joint that the embodiment of the present invention two is provided；
Fig. 3 is the side view for the anchor cable dismounting joint that the embodiment of the present invention three is provided；
The application scenarios schematic diagram for the anchor cable dismounting joint that Fig. 4 provides for an example of the invention；
Fig. 5 is the anchor cable method for dismounting flow chart that the embodiment of the present invention four is provided；
Fig. 6 is the anchor cable method for dismounting flow chart that the embodiment of the present invention five is provided.
Description of reference numerals：
1、13：Anchor cable dismounting joint；
2：Clamping device；
3：Steel strand wires；
4：Intermediate plate；
5：Jack；
6：Centre bore；
7：Through hole；
11：Top plate；
12：Anchor cable；
14：Tensioning instrument；
15：Piston；
16：Hydraulic cylinder；
17：Tensioning instrument joystick；
18：Control valve.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is the structural representation for the anchor cable dismounting joint that the embodiment of the present invention one is provided.As shown in figure 1, the dismounting connects
First 1 is applied to anchor cable, and anchor cable includes steel strand wires 3, clamping device 2 and intermediate plate 4, and anchor cable dismounting joint 1 has centre bore 6, and steel is twisted
Line 3 is arranged in centre bore 6；The one end of anchor cable dismounting joint 1 along the axis direction of centre bore 6 is connected with clamping device 2, anchor cable dismounting
The other end of joint 1 is arranged on jack 5, and during so that jack 5 carrying out tensioning to steel strand wires 3, intermediate plate 4 is displaced downwardly to centre bore
In 6.
In the present embodiment, the concrete principle using anchor cable dismounting joint dismounting anchor cable is as follows：Anchor cable dismounting joint 1 is pacified
Between the clamping device 2 and jack 5 of anchor cable so that anchor cable dismounting joint 1 closely connects with clamping device 2 and jack 5 respectively
Touch, jack is connected with the steel strand wires being located in centre bore 6, when jack pair steel strand wires carry out tensioning, due in intermediate plate
There is groove in side, steel strand wires can drive intermediate plate to move down into the centre bore 6 of anchor cable dismounting joint 1 so that intermediate plate 4 and clamping device
2 separation, clamping device 2 can not be fixed, so as to cause the support action of anchor cable to be released from.
It should be noted that in the present embodiment, the diameter of centre bore 6 must assure that intermediate plate 4 can during moving down
To fall into centre bore 6, i.e., intermediate plate 4 can not connect in folding process with anchor cable dismounting joint 1 with the end face that clamping device 2 is connected
Touch；Also, the face shaping of anchor cable dismounting joint 1 can be not limited in the structure such as cylindric, gengon, the present invention
System.
The anchor cable dismounting joint that the present embodiment is provided, by installing anchor cable dismounting joint below the clamping device of anchor cable, and
Jack is coordinated to be connected with the steel strand wires being located in centre bore, when the progress tensioning of jack pair steel strand wires, steel strand wires can be with
Intermediate plate is driven to move down into the centre bore of anchor cable dismounting joint so that intermediate plate is separated with clamping device, so that anchor cable is removed, to release
The support action of anchor cable, it is not necessary to purchase special anchor restorer, moreover, the processing of anchor cable dismounting joint is simple, easy to operate, cost is low
It is honest and clean, effectively save support cost.
Fig. 2 is the cross-sectional view for the anchor cable dismounting joint that the embodiment of the present invention two is provided.Anchor cable as shown in Figure 2 is torn open
Unload joint 1 has step with one end that clamping device 2 is connected, and shape and the clamping device of step match.
Alternatively, the distance between side outer rim of the step of anchor cable dismounting joint 1 and clamping device 2 between 1mm~5mm it
Between.
In the present embodiment, step is used to place clamping device 2 so that jack is during tension steel strand, anchor cable
Serious relative displacement will not be produced between dismounting joint 1 and clamping device 2, being accurately positioned for anchor cable dismounting joint 1 is realized；And
And, the distance between the step of anchor cable dismounting joint 1 and the side outer rim of clamping device 2 can be between 1mm~5mm, not only
So that serious relative displacement will not be produced between anchor cable dismounting joint 1 and clamping device 2, it is also possible that anchor cable dismounting joint 1
Installation and removal process become flexibly it is laborsaving.
It should be noted that in the present embodiment, the step of anchor cable dismounting joint 1 is not contacted with intermediate plate 4, it is to avoid very heavy
Top 5 is during tension steel strand 3 because the obstruction of step prevents intermediate plate 4 from moving down this problem.
Alternatively, in the anchor cable dismounting joint that the present embodiment is provided, centre bore can also be regular cylindrical-shaped structure,
Anchor cable dismounting joint can be directly mounted at below clamping device so that the process of anchor cable dismounting joint is more simple, into
This is cheaper.
Fig. 3 is the side view for the anchor cable dismounting joint that the embodiment of the present invention three is provided.As shown in figure 3, anchor cable dismounting joint 1
Side wall on be provided with through hole 7, through hole 7 can pass through extracting tool, extracting tool be used for pull out intermediate plate 4 so that intermediate plate 4 passes through
Centre bore 6 falls on the end face of jack, realizes the releasing of cable bolting effect.
Alternatively, one end that anchor cable dismounting joint is arranged on jack is the end face being engaged with jack, for example, can
Decorative pattern end face is disposed as with one end that anchor cable dismounting joint is arranged on jack and the end face of jack so that jack
In tension steel strand, anchor cable dismounting joint will not produce relative displacement between jack.
In the present embodiment, jack can be the jack of various models, for example, the outer cylinder bore D=of jack
90mm, inner prop outside diameter d=37mm；Piston effective active area A=(D2-d2) π/4=5.286 × 103mm2, the tensioning limit
Pmax=FmThe present invention of parameter in/A=37.8MPa, to(for) jack is not limited.Jack can pass through a tensioning
The power that instrument is provided carrys out tension steel strand, and power can also be obtained by other means, for example, manually providing power, passes through liquid
Press pump obtains power etc..
The application scenarios schematic diagram for the anchor cable dismounting joint that Fig. 4 provides for an example of the invention.As shown in figure 4, the scene
Including top plate 11, anchor cable 12, anchor cable dismounting joint 13, jack and tensioning instrument 14, wherein, jack includes piston 15 and hydraulic pressure
Cylinder 16.
In the present embodiment, as shown in figure 5, the detailed process for removing anchor cable is as follows：When removing anchor cable 12, first dispose
Foreign matter above the clamping device of anchor cable 12, installs anchor cable dismounting joint 13, and jack is passed through into steel strand wires 3 afterwards, make clamping device,
Anchor cable dismounting joint 13 and jack three contact are close, and tensioning instrument joystick 17 is got into oil-feed and surveyed, the piston of jack
15 move down, and jack carries out tensioning by anchor cable dismounting joint 13 to steel strand wires 3, when steel strand wires 3 are gone out certain displacement by tensioning,
Now, intermediate plate is separated with clamping device, and clamping device loosens, and tensioning instrument joystick 17 is got into intervening gears, is stopped tensioning, is used
The extracting tools such as screwdriver pull out intermediate plate by the through hole on the wall of anchor cable dismounting joint side, intermediate plate is passed through anchor cable dismounting joint
Centre bore is dropped down onto on jack, by control valve 18 dozens to pressure release gear, returns jack, you can realize that cable bolting is released.
Alternatively, it is big for tight roof or roof deformation, cause anchor cable stress excessive, dismantled with jack by anchor cable
Joint tension steel strand can not produce effective displacement, when intermediate plate can not be separated with clamping device, can coordinate pneumatic pick loosen top plate after,
Reuse jack and pass through anchor cable dismounting joint tension steel strand.
Fig. 5 is the anchor cable method for dismounting flow chart that the embodiment of the present invention four is provided.This method is applied to above-mentioned Fig. 1 to Fig. 4
On anchor cable dismounting joint shown in any embodiment, as shown in figure 5, this method comprises the following steps：
Step 101, the lower section that anchor cable dismounting joint is installed on to anchor cable clamping device, and the steel strand wires of anchor cable is passed through anchor cable
The centre bore of dismounting joint.
Step 102, the lower section that jack is installed on to anchor cable dismounting joint.
Step 103, the steel strand wires connection by jack and anchor cable, jack pair steel strand wires carry out tensioning, so that anchor cable
Intermediate plate is displaced downwardly in centre bore, and is separated with clamping device.
In the present embodiment, as shown in figure 1, anchor cable includes steel strand wires 3, clamping device 2 and intermediate plate 4, by anchor cable dismounting joint 1
The lower section of the clamping device 2 of anchor cable is installed on, anchor cable dismounting joint 1 has centre bore 6, the steel strand wires 3 of anchor cable is torn open through anchor cable
The centre bore 6 of joint 1 is unloaded, jack 5 is installed on to the lower section of anchor cable dismounting joint 1, and by jack 5 and the steel strand wires of anchor cable
3 connections, jack 5 carries out tensioning to steel strand wires 3, so that the intermediate plate 4 and clamping device 2 of anchor cable are separated, so that anchor cable is removed, to solve
Except the support action of anchor cable, operating process is simple and convenient, moreover, in underground coal mine environment, jack is also the more commonly used, only needs
The releasing of cable bolting effect can be achieved in the anchor cable dismounting joint for carrying light quality, and method is simple, safe and reliable.
Fig. 6 is the anchor cable method for dismounting flow chart that the embodiment of the present invention five is provided.As shown in fig. 6, jack pair steel strand wires
Tensioning is carried out, so that after intermediate plate and clamping device separation, method also includes：
Step 104, jack stop to steel strand tension.
Step 105, extracting tool stretched into from the through hole on the side wall of anchor cable dismounting joint, and pull out intermediate plate.
It should be noted that in the present embodiment, the method and step in step 101 to step 103 and example IV is complete
Identical, here is omitted.
In the present embodiment, jack stops to steel strand tension, by extracting tool from the side wall of anchor cable dismounting joint
Through hole stretch into, and pull out intermediate plate so that intermediate plate is fallen on a jack by the centre bore of anchor cable dismounting joint, so as to relieve
The support action of anchor cable.
Alternatively, in the present embodiment, jack pair steel strand wires carry out tensioning, specifically include：Jack passes through tensioning instrument
The power of offer carries out tensioning to steel strand wires.
In the above-described embodiments, when tension steel strand removes anchor cable, if stretching force is excessive, anchor cable is destroyed suddenly, meeting
There are two kinds of destruction situations, a kind of situation is that the intensity of anchor end of anchorage cable is less than the intensity of steel strand wires, reaches anchor during tensioning first
The strength degree of rope anchored end, anchor cable is drawn out；Another situation is that the intensity of anchor end of anchorage cable is more than the intensity of steel strand wires,
The strength degree of steel strand wires is reached during drawing first, anchor cable is pulled off, in order to prevent in stretching process because there is both the above suddenly
Situation and there is dynamic impact problem phenomenon, the anchor cable dismounting joint and anchor cable method for dismounting that are provided using above-described embodiment dismounting anchor cable
During, the tensioning limit can be determined, and to anchor cable dismounting joint strength check, it is specific as follows：
The tensioning limit, which is determined, to be specifically included：Underground general provision anchorage cable anchoring power is not less than 200KN, national standard GB/
T5224-2003 provides that the maximum, force of conventional Φ 21.8mm steel strand wires is not less than 353kN, therefore using smaller value 200KN to opening
The limit is drawn to be determined.Anchor cable dismounting joint strength check：
Anchor cable dismounting joint strength check is specifically included：Anchor cable dismounting joint is processed using No. 45 steel, GB/T699-
1999 standards provide 45 steel yield strength σs>=355Mpa, takes safety coefficient n=1.2, the allowable stress [σ of materialc]=σs/ n=
295.8Mpa；Joint effectively releases area for A=(D with lockset2-d2) π/4=1566.1mm2, joint stress maximum Fmax=
200KN, σmax=Fmax/ A=127.7MPa ＜ [σc], maximum crushing stress meets strength condition not less than allowable stress.
It should be noted that it is above-mentioned the tensioning limit is determined and to anchor cable dismounting joint strength check merely to
The releasing that cable bolting is acted on preferably is realized using the anchor cable dismounting joint and anchor cable method for dismounting that are provided in the present invention, not
It is the restrictive condition of the present invention.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (6)
1. a kind of anchor cable dismounting joint, applied to anchor cable, the anchor cable includes steel strand wires, clamping device and intermediate plate, it is characterised in that
The anchor cable dismounting joint has centre bore, and the steel strand wires are arranged in the centre bore；
The one end of the anchor cable dismounting joint along the centre bore axis direction is connected with the clamping device, and the anchor cable dismounting connects
The other end of head is arranged on jack, and during so that steel strand wires described in the jack pair carrying out tensioning, the intermediate plate is displaced downwardly to
In the centre bore, the end face of the other end of the anchor cable dismounting joint and the end face of one end of the very heavy top contact match
Close, also, two end faces being engaged are disposed as decorative pattern end face；
The anchor cable dismounting joint has step, the shape of the step and the clamping device with one end that the clamping device is connected
Match；
The distance between the step of the anchor cable dismounting joint and the side outer rim of the clamping device are between 1mm~5mm.
2. anchor cable dismounting joint according to claim 1, it is characterised in that set on the side wall of the anchor cable dismounting joint
There is through hole.
3. anchor cable dismounting joint according to claim 1, it is characterised in that the anchor cable dismounting joint is arranged on jack
On one end be the end face that is engaged with the jack.
4. a kind of anchor cable method for dismounting, methods described is applied on the anchor cable dismounting joint as described in claim any one of 1-3,
It is characterised in that it includes：
Below the clamping device that anchor cable dismounting joint is installed on to anchor cable, and the steel strand wires of anchor cable are made to pass through the anchor cable dismounting joint
Centre bore；
Jack is installed on to the lower section of the anchor cable dismounting joint；
The jack is connected with the steel strand wires of the anchor cable, steel strand wires described in the jack pair carry out tensioning, so that institute
The intermediate plate for stating anchor cable is displaced downwardly in the centre bore, and is separated with the clamping device.
5. method according to claim 4, it is characterised in that steel strand wires described in the jack pair carry out tensioning, so that
After the intermediate plate and clamping device separation, methods described also includes：
The jack stops to the steel strand tension；
Extracting tool is stretched into from the through hole on the side wall of the anchor cable dismounting joint, and pulls out the intermediate plate.
6. the method according to claim 4 or 5, it is characterised in that steel strand wires described in the jack pair carry out tensioning, tool
Body includes：
The power that the jack is provided by tensioning instrument carries out tensioning to the steel strand wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510358828.9A CN104929668B (en) | 2015-06-25 | 2015-06-25 | Anchor cable dismounting joint and anchor cable method for dismounting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510358828.9A CN104929668B (en) | 2015-06-25 | 2015-06-25 | Anchor cable dismounting joint and anchor cable method for dismounting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104929668A CN104929668A (en) | 2015-09-23 |
| CN104929668B true CN104929668B (en) | 2017-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510358828.9A Active CN104929668B (en) | 2015-06-25 | 2015-06-25 | Anchor cable dismounting joint and anchor cable method for dismounting |
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| CN (1) | CN104929668B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979689B (en) * | 2018-08-21 | 2023-12-15 | 中铁工程设计咨询集团有限公司 | Anchor cable structure capable of secondary grouting, tunnel surrounding rock anchoring structure and construction method |
| CN111037805A (en) * | 2020-02-23 | 2020-04-21 | 杨松 | Rubber block coarse crushing mechanism of waste heavy-duty tire cover tire crushing robot |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3628626B2 (en) * | 2001-05-09 | 2005-03-16 | 住友電工スチールワイヤー株式会社 | Anchor cable |
| CN201266128Y (en) * | 2008-08-19 | 2009-07-01 | 中国葛洲坝集团股份有限公司 | Security anchor withdrawing apparatus adopting double-anchor structure |
| CN201650321U (en) * | 2010-01-26 | 2010-11-24 | 江南大学 | Detachable anchorage device |
| CN201598636U (en) * | 2010-02-12 | 2010-10-06 | 中铁西北科学研究院有限公司 | Anchor cable lifter |
| CN201778832U (en) * | 2010-08-16 | 2011-03-30 | 铁岭兵山煤业设备仪器制造有限公司 | Detachable anchor cable lock |
| CN202228093U (en) * | 2011-09-06 | 2012-05-23 | 焦作煤业集团赵固（新乡）能源有限责任公司 | Portable anchor wire withdrawing device |
| CN204716269U (en) * | 2015-06-25 | 2015-10-21 | 淮南矿业(集团)有限责任公司 | Anchor cable dismounting joint |
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2015
- 2015-06-25 CN CN201510358828.9A patent/CN104929668B/en active Active
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