CN203383840U - Anchor plug pushing device used for anchor rope supporting structure and anchor rope supporting structure - Google Patents
Anchor plug pushing device used for anchor rope supporting structure and anchor rope supporting structure Download PDFInfo
- Publication number
- CN203383840U CN203383840U CN201320441136.7U CN201320441136U CN203383840U CN 203383840 U CN203383840 U CN 203383840U CN 201320441136 U CN201320441136 U CN 201320441136U CN 203383840 U CN203383840 U CN 203383840U
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- anchor
- voussoir
- male cone
- jacking block
- cable
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Abstract
The utility model discloses the field of mine roadway supporting and particularly relates to an anchor plug pushing device used for an anchor rope supporting structure and the anchor rope supporting structure; the anchor plug pushing device comprises an outer sleeve, a top block and a wedge block, wherein an anchor rope penetrates through the outer sleeve, the top block and the wedge block; the top block is arranged between the outer sleeve and the anchor rope; the wedge block is arranged on the outer sleeve, and an oblique plane is arranged at one end of the wedge block in the axial direction; the wedge block can slide radially along the outer sleeve; when the wedge block slides to enable the oblique plane of the wedge block to press the top block, the top block pushes an anchor plug. According to the utility model, under the condition of not influencing normal mounting tension, pre-tightening force loss caused by anchor cable retraction is effectively reduced, overload tension during the mounting of the anchor rope can be prevented, and the work state of the anchor rope is observably improved; moreover, the anchor plug pushing device provided by the utility model has a simple structure, is convenient to operate and maintain, and can ensure performance stability under a mine roadway environment.
Description
Technical field
The utility model relates to the mine timbering field, particularly a kind of thrust unit of the male cone for the cable bolting structure and this cable bolting structure.
Background technology
The coal mine roadway bolt support, generally adopt anchor pole to the superficial part surrounding rock supporting, and coordinate the support pattern of anchor cable deep-level country rock anchoring reinforcement.Anchor pole applies compressive stress to a sheath country rock, form secondary bearing bed, the secondary bearing bed that anchor cable forms bolt support is stablized rock stratum with deep and is connected, and improves the stability of bolt support layer and transfers the deep wall rock supporting capacity, improves the resistance to overturning of support system.While carrying out the cable bolting installation, require anchor cable is applied the initial pretightning force of cable body Breaking load 40～70%, reasonably pretightning force is the prerequisite that the assurance anchor cable is brought into play support action in time.
The anchor cable pretightning force is used the special hollow stretch-draw jack to apply.The anchor cable pretightning force applies principle as shown in Figure 1, while in boring 1, anchor cable 2 being installed, first at anchor cable 2 afterbodys, sequentially be inserted in anchor cable pallet 4, aligning spherical washer 5 and supporting lock assembly (anchor ring 6 and male cone 7), then anchor cable passed to jack end cap 8 and hollow piston rod 9.During stretch-draw anchor, the oil-feed of jack afterbody P1 mouth, piston 15 drives piston rod 9 and stretches out, jack cylinder body 14 inner spring 13 pushing tow instrument anchoring parts 12 and tool anchor clamp 11 are along the anchor cable axial slip, the inner conical surface of tool anchor clamp 11 male cone (strobilus masculinus) wedging instrument anchor rings 10 also tightens cable body, and jack end cap 8 front end faces hold out against the rear end face of anchor ring 6 simultaneously.Piston rod 9 continues to stretch out, and anchor ring 6 front end faces are pressed on 3 places, country rock surface by anchor cable pallet 4, aligning spherical washer 5 etc.; 11 of tool anchor clamps clamp anchor cable to boring 1 out-draw, relative anchor ring 6 slippages of cable body elongation.When stretch-draw jack stops stretch-draw or unloading, to the P2 mouth oiling of stretch-draw jack, tool anchor clamp 11 unclamps anchor cable, and the anchor cable retraction, drive the internal taper hole that male cone 7 is clamp-oned anchor ring 6, makes anchor cable keep the tensile force applied.
When the anchor cable pretightning force is the rear retraction of anchor cable stretching, male cone 7 chucking anchor cables are also clamp-oned the incipient extension power of anchor ring 6 locking cable bodies maintenances.Sting the anchor cable surface for preventing male cone 7 cards, or clamp-on in advance the stuck cable body of anchor ring 6 because of male cone 7 and affect stretch-draw, jack end cap 8 is processed with counterbore, when the stretching anchor cable is installed, male cone 7 tail ends sink in jack end cap 8 counterbores, make male cone 7 lag behind anchor ring 6 servo-actuated with jack end cap 8, form the mounting process clearance delta h of tension process.While stopping stretching or lifting jack unloading, the cable body of elongation retraction, the male cone 7 that drive lags behind is clamp-oned anchor ring 6 and is completed locking, and the mounting process gap disappears.The cable body retraction of locking process, make the pretightning force of the actual reservation of anchor cable only have 60～70% of maximum tension load, forms the loss of anchor cable pretightning force.Visible, the loss of anchor cable pretightning force is that mounting process determines, and current mounting process can not be avoided the pretightning force loss.
Improve anchor cable in order to guarantee the actual pretightning force of anchor cable to meet the demands and install in the situation of tensile load, easily cause following problem: cause anchor cable to cross stretch-draw on the one hand, affect the anchor cable service behaviour; On the other hand, to large diameter anchor, because of the restriction of tensioner practical capacity, can not provide enough tensile loads, cause anchor cable pretightning force deficiency.
In order to overcome the above problems, the utility model has been done useful improvement.
The utility model content
(1) technical problem that will solve
The purpose of this utility model be to provide a kind of avoid the loss of in anchor cable locking process pretightning force for the structural male cone thrust unit of cable bolting and this cable bolting structure.
(2) technical scheme
The utility model is achieved through the following technical solutions: a kind of thrust unit of the male cone for the cable bolting structure, comprise overcoat, jacking block and voussoir, and anchor cable is through described overcoat, jacking block and voussoir; Described jacking block is arranged between described overcoat and described anchor cable; Described voussoir is arranged on described outer putting, and the axial end of this voussoir is provided with inclined-plane; Described voussoir can radially sliding along described overcoat; When described wedge slides makes the inclined-plane of this voussoir unclamp described jacking block, described anchor cable stretches and the male cone that drives the cable bolting structure sinks in described overcoat; While making the inclined-plane of this voussoir push described jacking block when described wedge slides, make this jacking block pass described male cone.
Wherein, establish through hole in described overcoat; Described anchor cable is through described through hole, and described jacking block is arranged in the through hole of described overcoat; When the described male cone of described anchor cable stretching drive is passed described jacking block, described male cone enters in the through hole of this overcoat near the end of described overcoat.
Further, the contact jaw of described jacking block and the described voussoir corresponding inclined-plane that is provided with respectively.
Preferably, the inclined-plane of described jacking block is identical with the gradient on the inclined-plane of described voussoir.
Further, also comprise slide; Described slide setting on the coat, and is positioned at the opposite side relative with described jacking block of described voussoir; The other end corresponding with described inclined-plane on described voussoir is provided with plane; Can slide along described slide in the plane of described voussoir.
Wherein, the upper end of described voussoir is provided with transverse plane, and the lower end of this voussoir is provided with lower transverse plane.
The utility model also provides a kind of cable bolting structure, comprises the as above described male cone thrust unit of arbitrary scheme.
(3) beneficial effect
With prior art, with product, compare, the utility model has the following advantages:
1, the utility model, not affecting in anchor cable normal mounting stretch-draw situation, provides a kind of male cone thrust unit; Be stretched to design during pretightning force at anchor cable, this device can directly be got into male cone in the anchor ring of cable bolting structure, thereby effectively reduces the loss of the pretightning force that the anchor cable retraction brings;
2, the utility model, when anchor cable is installed, does not need significantly to improve the installation tensile force, thereby the overload stretch-draw while avoiding anchor cable to install significantly improves the anchor cable duty;
3, of the present utility model simple in structure, convenient operation and maintenance can guaranteed performance be stablized under the mine working environment.
The accompanying drawing explanation
Fig. 1 is existing cable bolting mounting structure figure;
Fig. 2 is the structure chart of cable bolting structure before anchorage cable stretching locking that the utility model provides;
Fig. 3 is the structure chart of male cone thrust unit of the present utility model before anchorage cable stretching locking;
Fig. 4 is the structure chart of cable bolting structure after anchorage cable stretching locking that the utility model provides;
Fig. 5 is the structure chart of male cone thrust unit of the present utility model after anchorage cable stretching locking.
In accompanying drawing, the component list of each label representative is as follows:
1-boring, 2-anchor cable, 3-country rock surface, 4-anchor cable pallet, 5-aligning spherical washer, 6-anchor ring, 7-male cone, 8-jack end cap, 9-hollow piston rod, 10-instrument anchor ring, 11-tool anchor clamp, 12-instrument anchoring part, 13-goring push spring, 14-jack cylinder body, 15-piston, 20-stretch-draw jack, 30-male cone thrust unit, 31-overcoat, 32-jacking block, 33-voussoir, 34-slide.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is made a detailed explanation.
As shown in Figure 2, the present embodiment provides a kind of cable bolting structure, comprises anchor cable member, stretch-draw jack 20 and male cone thrust unit 30, and described anchor cable member comprises anchor cable pallet 4, aligning spherical washer 5, anchor ring 6 and male cone 7; Anchor cable 2 is connected with male cone thrust unit 30 and with stretch-draw jack 20 through described anchor cable pallet 4, aligning spherical washer 5, anchor ring 6, male cone 7 successively; Be stretched to the design pretightning force by described stretch-draw jack 20 when anchor cable 2 after, as shown in Figure 4, adopt described male cone thrust unit 30 to promote described male cone 7 and be pressed in described anchor ring 6, by described anchor cable 2 lockings.In this enforcement, after anchor cable is stretched to the design pretightning force, by the male cone thrust unit, by male cone, directly be pressed in anchor ring, anchor cable is locked by lockset under the design tensile load, after avoiding stretch-draw jack to stop stretching or anchor cable retraction during unloading, thereby effectively reduce the loss of the pretightning force that the anchor cable retraction brings.
Wherein, the present embodiment provides a kind of thrust unit of the male cone for the cable bolting structure, and as shown in Figure 3 and Figure 5, described male cone thrust unit 30 comprises overcoat 31, jacking block 32 and voussoir 33, and described jacking block 32 is arranged in described overcoat 31; Described anchor cable 2 is through described overcoat 31, jacking block 32 and voussoir 33; Described voussoir 33 1 end faces are provided with inclined-plane, and the axis of these voussoir 33 length directions and described overcoat 31 is perpendicular; Described voussoir 33 can radially sliding along described overcoat 31; When described voussoir 33 upward sliding, the inclined-plane of this voussoir 33 unclamps described jacking block 32, and described anchor cable 2 stretchings drive described male cone 7 and sink in described overcoat 31; When described voussoir 33 down sliding, the inclined-plane of this voussoir 33 pushes described jacking block 32, makes this jacking block 32 pass described male cone 7 and is pressed in described anchor ring 6, by described anchor cable 2 lockings.
Further, establish through hole in described overcoat 31; Described anchor cable 2 is through this through hole, and described jacking block 32 is arranged between described overcoat 31 and described anchor cable 2; Drive the described jacking block 32 of described male cone 7 passing towards moving away from anchor ring 6 directions when described anchor cable 2 stretches, and described male cone 7 is entered in the through hole of this overcoat 31 by the end near described overcoat 31.Thereby, make male cone 7 lag behind anchor ring 6 servo-actuated with overcoat 31, form the mounting process gap of tension process.While stopping stretching or lifting jack unloading, anchor cable 2 retractions of elongation, the male cone 7 that drive lags behind is clamp-oned anchor ring 6 and is completed locking, and the mounting process gap disappears.Prevent that male cone 7 card stings anchor cable 2 surfaces, or clamp-on in advance the stuck anchor cable 2 of anchor ring 6 because of male cone 7 and affect stretch-draw.
Further, described jacking block 32 and the described voussoir 33 contact corresponding inclined-planes that are provided with of one end.The inclined-plane of described jacking block 32 is identical with the gradient on the inclined-plane of described voussoir 33, thereby makes, in voussoir 33 sliding processes, to pass smoothly jacking block 32 and slided.
Wherein, described male cone thrust unit 30 also comprises slide 34; Described slide 34 is arranged on overcoat 31, and is positioned at the opposite side of the described voussoir 33 corresponding with described jacking block 32; Other end corresponding with described inclined-plane on described voussoir 33 is provided with plane; Can slide along described slide 34 in the plane of described voussoir 33.
The upper end of described voussoir 33 is provided with transverse plane Q2, and the lower end of this voussoir 33 is provided with lower transverse plane Q1.
While using this device, the protruded length of anchor cable need add and is about 50mm.The using method of the cable bolting structure in the present embodiment is as follows:
A construction technology routinely is anchored in anchor cable 2 in coal and rock boring 1, and makes anchor cable 2 expose the about 350mm of initial length in boring 1.
B installs anchor cable pallet 4, aligning spherical washer 5, lock assembly by normal process, then is set with described male cone thrust unit 30 and stretch-draw jack 20.
33 times transverse plane Q1 of the voussoir of the described male cone thrust unit 30 of c hammering, thus jacking block 32 unclamped; And, to the P1 mouth oiling of stretch-draw jack 20, use stretch-draw jack 20 stretch-draw anchors 2.
D stretch-draw jack 20 stretching anchor cables 2 are to the design pretightning force, and the upper transverse plane Q2 of hammering voussoir 33, promote jacking block 32 and male cone 7 is headed in anchor ring 6, thereby make male cone 7 chucking anchor cables 2.
E is to the P2 mouth oiling of stretch-draw jack 20, and retraction stretch-draw jack 20 also unloads, and anchor cable 2 installs.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. the thrust unit of the male cone for the cable bolting structure, is characterized in that, comprises overcoat, jacking block and voussoir, and anchor cable is through described overcoat, jacking block and voussoir; Described jacking block is arranged between described overcoat and described anchor cable; Described voussoir is arranged on described outer putting, and the axial end of this voussoir is provided with inclined-plane; Described voussoir can radially sliding along described overcoat; When described wedge slides makes the inclined-plane of this voussoir unclamp described jacking block, described anchor cable stretches and the male cone that drives the cable bolting structure sinks in described overcoat; While making the inclined-plane of this voussoir push described jacking block when described wedge slides, make this jacking block pass described male cone.
2. the thrust unit of the male cone for the cable bolting structure according to claim 1, is characterized in that, in described overcoat, establishes through hole; Described anchor cable is through described through hole, and described jacking block is arranged in the through hole of described overcoat; When the described male cone of described anchor cable stretching drive is passed described jacking block, described male cone enters in the through hole of this overcoat near the end of described overcoat.
3. the thrust unit of the male cone for the cable bolting structure according to claim 1, is characterized in that, the contact jaw of described jacking block and described voussoir is the corresponding inclined-plane that is provided with respectively.
4. the thrust unit of the male cone for the cable bolting structure according to claim 3, is characterized in that, the inclined-plane of described jacking block is identical with the gradient on the inclined-plane of described voussoir.
5. the thrust unit of the male cone for the cable bolting structure according to claim 1, is characterized in that, also comprises slide; Described slide setting on the coat, and is positioned at the opposite side relative with described jacking block of described voussoir; The other end corresponding with described inclined-plane on described voussoir is provided with plane; Can slide along described slide in the plane of described voussoir.
6. the thrust unit of the male cone for the cable bolting structure according to claim 1, is characterized in that, the upper end of described voussoir is provided with transverse plane, and the lower end of this voussoir is provided with lower transverse plane.
7. a cable bolting structure, is characterized in that, comprises male cone thrust unit as described as claim 1-6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441136.7U CN203383840U (en) | 2013-07-23 | 2013-07-23 | Anchor plug pushing device used for anchor rope supporting structure and anchor rope supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441136.7U CN203383840U (en) | 2013-07-23 | 2013-07-23 | Anchor plug pushing device used for anchor rope supporting structure and anchor rope supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203383840U true CN203383840U (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320441136.7U Expired - Fee Related CN203383840U (en) | 2013-07-23 | 2013-07-23 | Anchor plug pushing device used for anchor rope supporting structure and anchor rope supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203383840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343696A (en) * | 2013-07-23 | 2013-10-09 | 天地科技股份有限公司 | Anchor plug pushing device used for anchor cable supporting structure and anchor cable supporting structure |
-
2013
- 2013-07-23 CN CN201320441136.7U patent/CN203383840U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343696A (en) * | 2013-07-23 | 2013-10-09 | 天地科技股份有限公司 | Anchor plug pushing device used for anchor cable supporting structure and anchor cable supporting structure |
| CN103343696B (en) * | 2013-07-23 | 2015-10-21 | 天地科技股份有限公司 | For male cone thrust unit and this cable bolting structure of cable bolting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20140723 |
|
| EXPY | Termination of patent right or utility model |