CN207161130U - A kind of self-drilling type difference slip casting assembled bolt - Google Patents
A kind of self-drilling type difference slip casting assembled bolt Download PDFInfo
- Publication number
- CN207161130U CN207161130U CN201721161120.5U CN201721161120U CN207161130U CN 207161130 U CN207161130 U CN 207161130U CN 201721161120 U CN201721161120 U CN 201721161120U CN 207161130 U CN207161130 U CN 207161130U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- main shaft
- anchor
- slip casting
- grouting pipe
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of self-drilling type difference slip casting assembled bolt, it is made up of drill bit, Grouting Pipe, main shaft, anchor head mechanism and Mao Wei mechanisms.Anchor head mechanism includes retainer ring, slip ring, position-limiting tube, some to passive connecting rod and drive connecting rod.Anchor head mechanism cooperation fracture grouting can ensure that the stabilization at anchor end in anchor pole.Mao Wei mechanisms include anchor disk, attachment cap, spring and nut；Attachment cap makes Grouting Pipe and main shaft compatible deformation, and common carrying, spring timely enters anchor pole and is chronically at active support state.It can be drilled using the assembled bolt in weak broken wall rock, the reaming of interior anchor end and fracture grouting, and remaining section of osmotic grouting.Grouting Pipe is anchored in a manner of full length fastening to the country rock of small range around it；Main shaft plays extruding reinforcement effect to a wide range of country rock including Grouting Pipe anchorage zone, and Grouting Pipe anchorage zone interacts with main shaft anchorage zone, cooperates with carrying, can improve supporting effect.
Description
Technical field
Soft broken Geotechnical Engineering supporting workpiece is the utility model is related to, specifically a kind of self-drilling type difference slip casting combination
Anchor pole.
Background technology
The supporting of weak broken wall rock is one of the difficult point in Geotechnical Engineering stability contorting field.Currently for this class surrounding rock compared with
Universal and effective administering method is to carry out grouting and reinforcing to breaking surrounding rock first, then again using anchor pole, anchor cable etc. to slip casting
Country rock afterwards carries out supporting.
Slip casting process is generally realized using conventional grouted anchor bar or Self-propelled grouting anchoring-bolt.Conventional grouted anchor bar structure letter
List, handling ease, cost are low, but are influenceed and be not easy into hole by collapse hole, and need that specially it is fixed and
Sealing of hole, working procedure is added, be unfavorable for rapid construction；Self-propelled grouting anchoring-bolt avoids the influence of collapse hole, but before slip casting
There is still a need for it is fixed and sealing of hole.
The problem of more crucial is, because current grouting and reinforcing is often carried out with twisted steel anchor rod supporting successively in two steps,
On the one hand cause that boring work amount is big, time-consuming, not only seriously govern construction speed, and greatly increase engineering cost；
Lack organic connections between another aspect grouted anchor bar and twisted steel anchor rod, collaboration anchorage effect is weaker, the anchoring of support system
Performance And Reliability is all relatively low.
Insufficient existing for existing slip casting anchorage technology, the accelerating construction progress in the case where improving supporting effect in order to overcome
With reduction engineering cost, it is necessary to research and develop a kind of combination for the feature and benefit for combining grouted anchor bar and high-strength screw-thread steel anchor pole
Anchor pole.
Utility model content
The purpose of this utility model is, the defects of overcoming prior art to exist, there is provided a kind of self-drilling type difference slip casting
Assembled bolt.The anchor pole under conditions of supporting effect is improved, can accelerate the supporting progress of weak broken wall rock and reduce work
Cheng Chengben.
The utility model proposes a kind of self-drilling type difference slip casting assembled bolt, by drill bit, Grouting Pipe, main shaft, anchor head machine
Structure, Mao Wei mechanisms composition.
Drill bit is connected to front-end of spindle, and Grouting Pipe is sleeved on main shaft, and slip casting bore is more than major axis diameter, Grouting Pipe and
Slip casting passage is formed between main shaft.
The anchor head mechanism, including it is slip ring, position-limiting tube, some to passive connecting rod and drive connecting rod.Slip ring sleeve on main shaft,
Slip ring is connected with Grouting Pipe front end（One end where drill bit is front end）, position-limiting tube pipe range is less than drive connecting rod and passive length of connecting rod
Sum is spent, position-limiting tube is enclosed on main shaft and between drill bit and slip ring, and position-limiting tube body is provided with some injected holes.It is each passive
Connecting rod is uniformly distributed circumferentially the front-end of spindle portion that is hinged on, and each drive connecting rod, which is uniformly distributed circumferentially, to be hinged on slip ring, passively
Connecting rod is hinged with drive connecting rod.
The Mao Wei mechanisms include anchor disk, attachment cap, and the anchor disk is enclosed on the rear end of Grouting Pipe, and attachment cap is set on main shaft
Above and by the rearward end of Grouting Pipe block.The injected hole that attachment cap is provided with slip casting passage connects in Grouting Pipe.Also set on anchor disk
There is injected hole.
Further prioritization scheme of the present utility model：
Prioritization scheme one, the anchor head mechanism also include retainer ring, are fixed on the leading section of main shaft.Each passive connecting rod hinge
It is connected in retainer ring, the leading section of the position-limiting tube is fixed in retainer ring.
Prioritization scheme two, when the passive connecting rod is in main axis parallel position, the inner side of each passive connecting rod with it is spacing
The outer surface contact of pipe, while the radius of circle that slip ring upper link point surrounds is less than the half of the circle that retainer ring upper link point surrounds
Footpath, thereby guarantee that three pin joints of every a pair of drive connecting rods and passive interlinking lever end are not conllinear all the time.
Prioritization scheme three, folding connecting rod is set between each adjacent drive connecting rod, set between each folding connecting rod and slip ring
Put and only starch curtain.
Prioritization scheme four, the folding connecting rod are made up of two struts and ratchet box, one end of two struts respectively with spine
Two ratchets connection in box is taken turns, the other end of strut is hinged in drive connecting rod.
Prioritization scheme five, open up groove vertically on the internal ring wall of the slip ring, slurries can be by the groove from slip casting
Pipe enters position-limiting tube.
Prioritization scheme six, at attachment cap periphery sheathed spring, the rear portion of attachment cap nut is set, in the outer of the nut
End is provided with the lock ring for preventing it from releasing.Spring timely enters anchor pole and is chronically at active support state.
Prioritization scheme seven, the Grouting Pipe outer end are cased with stop grouting plug, and the opposite position of stop grouting plug and the anchor disk is equal
It is drilled with injected hole and steam vent.
Prioritization scheme eight, the Grouting Pipe and main shaft are whole, or more pipes（Axle）Body with connection sleeve pipe connect and
Into.
Using the utility model assembled bolt, can be drilled in weak broken wall rock, the reaming of interior anchor end, difference slip casting
（Fracture grouting is carried out by the internal anchor end in gap between Grouting Pipe and main shaft, passes through the gap pair between Grouting Pipe and drilling
Remaining section carries out osmotic grouting）With timely active support.Grouting Pipe is in a manner of full length fastening to the country rock of small range around it
Anchored；Main shaft plays extruding reinforcement effect to a wide range of country rock including Grouting Pipe anchorage zone；Grouting Pipe anchorage zone
Interacted with main shaft anchorage zone, cooperate with carrying, be greatly improved supporting effect.
The anchoring process of above-mentioned self-drilling type difference slip casting assembled bolt in use, comprises the following steps：
The first step：Drilling.The spring and nut of assembled bolt described in removal, regulation attachment cap make passive connecting rod be put down with main shaft
OK；The drilling of assembled bolt rotation progress square is driven by jumbolter, until predetermined depth.
Second step：The reaming of interior anchor end.Progressively regulation attachment cap makes Grouting Pipe toward bottom hole pushing tow slip ring, so that drive connecting rod pushes away
It is radially projecting to move passive connecting rod, at the same time drives anchor pole rotation to make interior anchor end by jumbolter（Anchor pole is entered in drilling
One end, be referred to as in anchor end, also referred to as anchor pole front end.The other end of anchor pole is referred to as outer anchor end, also referred to as rear end.）Aperture by
Flaring is big, when slip ring be limited pipe stop and when can not continue to move toward bottom hole in completion anchor end reaming procedure.
3rd step：Difference slip casting.The injected hole of grouting pipeline and attachment cap is connected first, the higher grouting pressure of use
Via internally anchor end carries out slip casting inside Grouting Pipe（Referred to as fracture grouting）.Then the injected hole on grouting pipeline and anchor disk is connected
Connect, the gap between Grouting Pipe and drilling carries out osmotic grouting to country rock.
4th step：Anchor pole fastens.After slurries initial set, spring and nut are installed at outer anchor end, produces spring by nut
Raw certain decrement to apply certain pretightning force to country rock.
The beneficial effects of the utility model are：
（1）The utility model is integral by Grouting Pipe and high intensity spindle combinations, while has slip casting and high-strength anchoring
Function, square Drilling quantity can be reduced in the case where improving supporting effect, not only save the engineering time but also saved support cost.
（2）Anchor pole avoids the difficulty that collapse hole is brought to rockbolt installation from function is bored, and anchor pole is easily assembled to, can be according to difference
The assembled bolt of lithology and stress condition design with suitable specification and mechanics parameter.
（3）The major diameter anchor head at interior anchor end is combined with a wide range of stabilization zone of fracture grouting, it is ensured that anchor end in anchor pole
Anchoring impetus it is firm, stably, reliably.
（4）The spring at outer anchor end not only timely enters anchor pole and is chronically at active support state, and can play one
Fixed shock resistance and allow pressure to act on, improve supporting effect and adaptability.
（5）Differentiation slip casting, can take into account reinforcing and allow pressure, and anchoring effect is good：Interior anchor end can be made adjacent using fracture grouting
The inside impetus of anchor pole is linked to be entirety, it is ensured that the stabilization at interior anchor end；And remainder can be in adjacent anchor pole using osmotic grouting
Between leave certain not cementing country rock to provide compression space, play and allow pressure to act on.
（6）Grouting Pipe controls as the small range anchorage zone that Forced Bond Anchor Bolt is formed with main shaft as high strength anchor bar
A wide range of anchorage zone interaction, collaboration carrying, are greatly improved supporting effect.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model self-drilling type difference slip casting assembled bolt（Longitudinal section, passive connecting rod with
Main axis parallel state）.
Fig. 2 is the structural representation of the utility model self-drilling type difference slip casting assembled bolt（Longitudinal section, passive connecting rod and
Drive connecting rod is in softened state）.
Fig. 3 is the structural representation of the utility model self-drilling type difference slip casting assembled bolt（Longitudinal section, passive connecting rod and
Drive connecting rod is in softened state, and rear portion installs spring and nut additional）.
Fig. 4 is that the utility model self-drilling type difference slip casting assembled bolt stops the schematic diagram starched when curtain is opened.
Fig. 5 is schematic diagram when folding connecting rod collapses.
Schematic diagram when Fig. 6 struts for folding connecting rod.
Fig. 7 is the schematic diagram at the end of the drilling of the utility model self-drilling type difference slip casting assembled bolt.
Fig. 8 is the schematic diagram after the reaming of anchor end in the utility model self-drilling type difference slip casting assembled bolt.
Fig. 9 is the schematic diagram after the utility model self-drilling type difference slip casting assembled bolt difference slip casting.
Figure 10 is the schematic diagram after the fastening of the utility model self-drilling type difference slip casting assembled bolt.
Embodiment
The utility model is described further with reference to the accompanying drawings and detailed description.
As Figure 1-3, the utility model proposes self-drilling type difference slip casting assembled bolt, the assembled bolt by drill bit 1,
The parts such as Grouting Pipe 2, main shaft 3, anchor head mechanism, Mao Wei mechanisms form.The front end of main shaft 3 is threaded rod, and the rear portion of drill bit 1 is threaded
Hole, drill bit 1 link together with the nose threads of main shaft 3.The anchor head mechanism, including the passive and of connecting rod 501 of 4, six pairs of retainer ring
Drive connecting rod 502, position-limiting tube 6, slip ring 7.Six pairs of passive connecting rods 501 and drive connecting rod 502 are circumferentially uniformly distributed setting.It is fixed
Ring 4 is fixed on front-end of spindle portion, is close to the rear portion of drill bit 1.Between retainer ring 4 and passive connecting rod 501, passive connecting rod 501 with actively
It is be hinged between connecting rod 502 and between drive connecting rod 502 and slip ring 7.Slip ring 7 is sleeved on main shaft 3, and position-limiting tube 6 is located at
Between retainer ring 4 and slip ring 7, certain specification and the injected hole of quantity are drilled with its pipe shaft.The front portion of Grouting Pipe 2 uses with slip ring
Pin is connected, and sealing ring 8 is provided between Grouting Pipe front end and slip ring, connects position sealing.
As shown in figure 4, folding connecting rod is set between each adjacent drive connecting rod 502, between each folding connecting rod and slip ring 7
Only slurry curtain 18 is set.As shown in Figure 5,6, the folding connecting rod is made up of two struts 16 and ratchet box 17, and the one of two struts
End is connected with two ratchets in ratchet box respectively, and the other end of strut is hinged in drive connecting rod.
The Mao Wei mechanisms include anchor disk 11, close the attachment cap 12 of slip casting tube end, spring 13, nut 14 and its locking
Circle 15.Anchor disk 11 is enclosed on the outer anchor end of Grouting Pipe 2, and spring 13 is enclosed on the periphery of attachment cap 12, and the spring one end is close to anchor disk 11
Outer face, the other end are close to nut 14, and the lock ring 15 for preventing it from releasing is provided with the outer end of the nut 14.Turn nut 14
Spring 13 is acted on anchor disk 11, anchor pole can be fastened.
According to the length requirement of anchor pole, Grouting Pipe 2 and main shaft 3 can be one whole, can also will more using connection sleeve pipe
Root is formed by connecting.The outer end of Grouting Pipe 2 is cased with stop grouting plug 10.The corresponding position of stop grouting plug 10 and anchor disk 11 is drilled with injected hole
One each with steam vent, an injected hole is also drilled with attachment cap 12.It is all when the passive connecting rod 501 is parallel with main shaft 3
The inner side of passive connecting rod 501 is just in close contact with the outer surface of position-limiting tube 6, at the same the upper link point of slip ring 7 surround the half of circle
Footpath is less than the radius of circle that the upper link point of retainer ring 4 surrounds, and thereby guarantees that every a pair of drive connecting rods 502 and passive connecting rod 501
Three pin joints are not conllinear all the time, drive connecting rod is smoothly strutted passive connecting rod.
The anchoring process of above-mentioned self-drilling type difference slip casting assembled bolt, comprises the following steps：
As shown in fig. 7, the first step：Drilling.The spring and nut of assembled bolt described in removal, regulation attachment cap make passively to connect
Bar and main axis parallel.Assembled bolt rotation is driven to carry out the drilling of square until predetermined depth by jumbolter.
As shown in figure 8, second step：The reaming of interior anchor end.Progressively regulation attachment cap makes Grouting Pipe toward bottom hole pushing tow slip ring, so as to
Drive connecting rod promotes passive connecting rod radially projecting, at the same time by jumbolter drive anchor pole rotation make the aperture at interior anchor end by
Flaring is big, when slip ring be limited pipe stop and when can not continue to move toward bottom hole in completion anchor end reaming procedure.
As shown in figure 9, the 3rd step：Difference slip casting.The injected hole of grouting pipeline and attachment cap is connected first, use is higher
Grouting pressure via internally anchor end carries out fracture grouting inside Grouting Pipe；Then the injected hole on grouting pipeline and anchor disk is connected
Connect, the space between Grouting Pipe and drilling carries out osmotic grouting to country rock.
As shown in Figure 10, the 4th step：Anchor pole fastens.After slurries initial set, spring and nut are installed at outer anchor end, passes through spiral shell
Mother makes spring produce certain decrement to apply certain pretightning force to country rock.
The utility model is the organic assembling body of drill bit, variable-diameter anchor head mechanism, Grouting Pipe, main shaft and Mao Wei mechanisms,
Dexterously it is integrated with the functions such as drilling, difference slip casting and suspension roof support.Its general principle is：Main shaft is located inside Grouting Pipe and same
The heart is coaxial, and anchor end is equipped with drill bit and variable-diameter anchor head mechanism in anchor pole, and anchor end is equipped with stop grouting plug and anchor tail machine outside anchor pole
Structure；Ensure the anchoring impetus of anchor pole firmly, reliably by major diameter anchor head mechanism and fracture grouting；The attachment cap of Mao Wei mechanisms
Make Grouting Pipe and main shaft compatible deformation, spring not only timely enters anchor pole and is chronically at active support state but also with one
Fixed buffering allows pressure to act on.Grouting Pipe is anchored in a manner of full length fastening to the country rock of small range around it；Main shaft is to bag
Include a wide range of country rock including Grouting Pipe anchorage zone and play extruding reinforcement effect；Grouting Pipe anchorage zone and main shaft anchorage zone phase interaction
With, collaboration carrying, be greatly improved supporting effect.
It should be pointed out that for those skilled in the art, before the utility model principle is not departed from
Put, some improvements and modifications can also be made, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (9)
- A kind of 1. self-drilling type difference slip casting assembled bolt, by drill bit（1）, Grouting Pipe（2）, main shaft（3）, anchor head mechanism, anchor tail machine Structure forms；It is characterized in that：Drill bit（1）It is connected to main shaft（3）Front end, Grouting Pipe（2）It is sleeved on main shaft（3）On, slip casting bore is more than major axis diameter, Slip casting passage is formed between the two；The anchor head mechanism includes slip ring（7）, position-limiting tube（6）, it is some to passive connecting rod（501）And drive connecting rod（502）；It is described Slip ring（7）It is enclosed on main shaft（3）On, slip ring（7）With Grouting Pipe（2）Front end connects, position-limiting tube（6）Pipe range is less than drive connecting rod and quilt Dynamic length of connecting rod sum, position-limiting tube（6）It is enclosed on main shaft（3）Go up and be located at drill bit（1）With slip ring（7）Between, position-limiting tube（6）Body It is provided with some injected holes；Each passive connecting rod（501）It is uniformly distributed circumferentially and is hinged on main shaft（3）Leading section, each drive connecting rod （502）It is uniformly distributed circumferentially and is hinged on slip ring（7）On, passive connecting rod（501）With drive connecting rod（502）It is hinged；The Mao Wei mechanisms include anchor disk（11）, attachment cap（12）, the anchor disk（11）It is enclosed on Grouting Pipe（2）Rear end, connection Cap（12）It is set on main shaft（3）Above and by the rearward end of Grouting Pipe block；Attachment cap（12）It is provided with and Grouting Pipe（2）Interior slip casting is led to The injected hole of road UNICOM；Anchor disk is provided with injected hole and steam vent.
- 2. self-drilling type difference slip casting assembled bolt according to claim 1, it is characterized in that：The anchor head mechanism also includes solid Determine ring（4）, retainer ring（4）It is fixed on main shaft（3）Leading section；Each passive connecting rod（501）It is hinged on retainer ring（4）On, institute State position-limiting tube（6）Leading section be fixed on retainer ring（4）On.
- 3. self-drilling type difference slip casting assembled bolt according to claim 1 or 2, it is characterized in that：When the passive connecting rod （501）It is in and main shaft（3）During parallel position, each passive connecting rod（501）Inner side and position-limiting tube（6）Outer surface contact, together When the radius of circle that surrounds of slip ring upper link point be less than the radius of the circle that retainer ring upper link point surrounds.
- 4. self-drilling type difference slip casting assembled bolt according to claim 1, it is characterized in that：Between each adjacent drive connecting rod Folding connecting rod is set, only slurry curtain is set between each folding connecting rod and slip ring（18）.
- 5. self-drilling type difference slip casting assembled bolt according to claim 4, it is characterized in that：The folding connecting rod is by two supports Bar（16）And ratchet box（17）Form, two struts（16）One end respectively with ratchet box（17）Interior two ratchets connection, support The other end of bar is hinged on drive connecting rod（502）On.
- 6. self-drilling type difference slip casting assembled bolt according to claim 1, it is characterized in that：In the slip ring（7）Inner ring Groove is opened up on wall vertically, as slurries from Grouting Pipe（2）Into position-limiting tube（6）Passage.
- 7. self-drilling type difference slip casting assembled bolt according to claim 1, it is characterized in that：In the attachment cap（12）Periphery Sheathed spring（13）, attachment cap（12）Rear portion set nut（14）, in the nut（14）Outer end be provided with lock ring（15）.
- 8. self-drilling type difference slip casting assembled bolt according to claim 1, it is characterized in that：The Grouting Pipe（2）Outer end It is cased with stop grouting plug（10）, the stop grouting plug（10）With anchor disk（11）Opposite position be drilled with injected hole and steam vent.
- 9. self-drilling type difference slip casting assembled bolt according to claim 1, it is characterized in that：The Grouting Pipe（2）And main shaft （3）It is whole or is more and is formed by connecting with connection sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721161120.5U CN207161130U (en) | 2017-09-12 | 2017-09-12 | A kind of self-drilling type difference slip casting assembled bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721161120.5U CN207161130U (en) | 2017-09-12 | 2017-09-12 | A kind of self-drilling type difference slip casting assembled bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207161130U true CN207161130U (en) | 2018-03-30 |
Family
ID=61721238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721161120.5U Withdrawn - After Issue CN207161130U (en) | 2017-09-12 | 2017-09-12 | A kind of self-drilling type difference slip casting assembled bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207161130U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387141A (en) * | 2017-09-12 | 2017-11-24 | 中国矿业大学 | A kind of self-drilling type difference slip casting assembled bolt and its anchoring process |
| CN110388223A (en) * | 2019-08-21 | 2019-10-29 | 中国矿业大学 | A kind of hollow grouting cable anchor and application method of segmented slip casting |
| CN116658219A (en) * | 2023-08-02 | 2023-08-29 | 阳泉市广凯机械制造有限公司 | Anchor cable prestress control device and application method |
-
2017
- 2017-09-12 CN CN201721161120.5U patent/CN207161130U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387141A (en) * | 2017-09-12 | 2017-11-24 | 中国矿业大学 | A kind of self-drilling type difference slip casting assembled bolt and its anchoring process |
| WO2019052331A1 (en) * | 2017-09-12 | 2019-03-21 | 中国矿业大学 | Self-drilling differential grouting combined bolt and anchoring method therefor |
| US10794183B2 (en) | 2017-09-12 | 2020-10-06 | China University Of Mining And Technology | Self-drilling differential grouting combined bolt and anchoring method therefor |
| CN110388223A (en) * | 2019-08-21 | 2019-10-29 | 中国矿业大学 | A kind of hollow grouting cable anchor and application method of segmented slip casting |
| CN110388223B (en) * | 2019-08-21 | 2020-09-08 | 中国矿业大学 | Sectional grouting hollow grouting anchor cable and use method thereof |
| CN116658219A (en) * | 2023-08-02 | 2023-08-29 | 阳泉市广凯机械制造有限公司 | Anchor cable prestress control device and application method |
| CN116658219B (en) * | 2023-08-02 | 2023-10-13 | 阳泉市广凯机械制造有限公司 | Anchor cable prestress control device and application method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180330 Effective date of abandoning: 20200519 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180330 Effective date of abandoning: 20200519 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |