CN112360505A - Drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device and construction method - Google Patents
Drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device and construction method Download PDFInfo
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- CN112360505A CN112360505A CN202011045647.8A CN202011045647A CN112360505A CN 112360505 A CN112360505 A CN 112360505A CN 202011045647 A CN202011045647 A CN 202011045647A CN 112360505 A CN112360505 A CN 112360505A
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- anchoring
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- 238000005553 drilling Methods 0.000 title claims abstract description 73
- 238000004873 anchoring Methods 0.000 title claims abstract description 42
- 230000008093 supporting effect Effects 0.000 title claims abstract description 21
- 238000010276 construction Methods 0.000 title abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 83
- 238000007569 slipcasting Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000010354 integration Effects 0.000 claims abstract description 6
- 230000000670 limiting effect Effects 0.000 claims description 18
- 239000011440 grout Substances 0.000 claims description 14
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 10
- 239000003245 coal Substances 0.000 abstract description 7
- 239000011435 rock Substances 0.000 description 23
- 239000000243 solution Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/008—Anchoring or tensioning means
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of coal mine roadway support, and provides a drilling, grouting, anchoring and pre-tightening integrated anchor rod support device and a construction method. This drilling slip casting anchor pretension integration anchor bolt support device includes: the anchor rod mechanism comprises an anchor rod, and a grouting channel is arranged in the anchor rod along the length direction of the anchor rod; the driving mechanism is connected with the anchor rod mechanism and used for driving the anchor rod to rotate so as to realize drilling and pre-tightening; the grouting mechanism is connected with the grouting channel and is used for grouting the grouting channel; and the propelling mechanism is connected with the driving mechanism and is used for propelling the anchor rod to drill. The invention realizes the integration of drilling, grouting anchoring and pre-tightening of the drilling, grouting anchoring and pre-tightening integrated anchor rod supporting device, has simple structure and convenient operation, simplifies the construction process, ensures the supporting effect, improves the supporting efficiency and realizes automatic operation.
Description
Technical Field
The invention relates to the technical field of coal mine roadway support, in particular to a drilling, grouting, anchoring and pre-tightening integrated anchor rod support device and a construction method.
Background
The anchor bolt support can effectively control the deformation of surrounding rocks, and is widely applied to the fields of domestic and foreign coal mines, metal mines and the like. Taking coal mine roadway support as an example, the existing anchor bolt support process flow is as follows: and (3) punching a hole on the coal rock wall by using a drill rod, manually plugging the resin anchoring agent into the punched hole, putting the anchor rod into the hole, stirring, and pre-tightening the anchor rod after the anchoring agent is solidified.
The existing anchor bolt support construction process has the main problems that:
1) the step of manually plugging the anchoring agent into the drill hole is difficult, and particularly when the coal rock mass is broken and the wall of the drill hole is uneven, a large amount of time is consumed to complete the installation of the anchoring agent, so that the supporting efficiency is reduced;
2) drilling, mounting the anchoring agent and pre-tightening are completed by using different tools, and the time consumed for disassembling the drill rod and switching different tools is long.
In summary, the existing anchor rod construction process is long in time consumption, low in efficiency, high in labor intensity of workers and high in automation realization difficulty, and cannot meet the requirement of rapid support of a coal mine tunnel.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device, which aims to solve the problems of long time consumption and low efficiency of the existing anchor rod construction.
The invention further provides a construction method of the drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device.
According to the embodiment of the first aspect of the invention, the drilling, grouting, anchoring and pre-tightening integrated bolting device comprises:
the anchor rod mechanism comprises an anchor rod, and a grouting channel is arranged in the anchor rod along the length direction of the anchor rod;
the driving mechanism is connected with the anchor rod mechanism and used for driving the anchor rod to rotate so as to realize drilling and pre-tightening;
the grouting mechanism is connected with the grouting channel and is used for grouting to the grouting channel;
and the propelling mechanism is connected with the driving mechanism and is used for propelling the anchor rod to drill.
According to one embodiment of the invention the first end of the rock bolt is provided with a drill bit, which drill bit is provided with a grout outlet in communication with the grout passage.
According to one embodiment of the invention, the second end of the anchor rod is sequentially provided with a limiting block, a pre-tightening nut, a self-aligning ball pad and a tray along the direction from the second end to the first end of the anchor rod, and the second end of the anchor rod is provided with a thread matched with the pre-tightening nut in a threaded manner.
According to one embodiment of the invention, the limiting block is provided with a grouting through hole communicated with the grouting channel.
According to one embodiment of the invention, the driving mechanism comprises a driver, and an output end of the driver is connected with the pre-tightening nut and used for driving the pre-tightening nut to rotate forwards or backwards.
According to one embodiment of the invention, the drive is an electric motor, a cylinder, a hydraulic cylinder or an internal combustion engine.
According to one embodiment of the invention, the grouting mechanism comprises a grouting pump, and a grout inlet of the grouting pump is connected with the grouting channel.
According to one embodiment of the invention, the propulsion mechanism comprises a base and a propulsion boom, which is arranged on the base, the output end of the propulsion boom being connected with the drive mechanism for propelling the rock bolt in the drilling direction.
According to one embodiment of the invention, the base is provided with a guide rail arranged along the drilling direction, and the driving mechanism is slidably arranged on the guide rail.
According to the second aspect of the invention, the construction method of the drilling, grouting, anchoring and pre-tightening integrated bolting device comprises the following steps:
the driving mechanism drives the anchor rod to rotate along a first direction, and the propelling mechanism propels the anchor rod to drill to a preset depth;
grouting the borehole from the grouting channel to a preset anchoring length through the grouting mechanism;
and driving a pre-tightening nut in the anchor rod mechanism to rotate and pre-tighten along a second direction through the driving mechanism.
One or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:
through set up the slip casting passageway in the stock, actuating mechanism drive stock is rotatory, and simultaneously, advancing mechanism impels the stock to creep into, realize the pretension to the drilling of country rock and stock, slip casting mechanism injects the thick liquid through the slip casting passageway in to the drilling, realize the anchor effect of stock, and then realized drilling slip casting anchor pretension integration anchor bolt support device drilling, slip casting anchor, the pretension integration, moreover, the steam generator is simple in structure, and convenient operation simplifies the construction process, has guaranteed the effect of strutting, improves and struts efficiency, realizes automatic operation.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device in an embodiment of the invention;
fig. 2 is a schematic structural diagram of an anchor rod mechanism in the drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device in the embodiment of the invention;
fig. 3 is a schematic structural diagram of an anchor rod mechanism in a drilling process of the drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device according to the embodiment of the invention;
fig. 4 is a schematic structural diagram of an anchor rod mechanism in a grouting process of the drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device in the embodiment of the invention;
fig. 5 is a schematic structural diagram of an anchor rod mechanism in the pre-tightening process of the drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device in the embodiment of the invention.
Reference numerals:
1. a base; 2. a driver; 3. grouting pump; 4. an anchor rod; 5. a drill bit; 6. a limiting block; 7. pre-tightening the nut; 8. a self-aligning ball pad; 9. a tray; 10. surrounding rocks; 11. a guide rail; 12. advancing the drill boom; 13. drilling; 14. grouting a channel; 15. grouting the through hole; 16. and (6) slurry outlet.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
As shown in fig. 1 to 5, an embodiment of the present invention provides a drilling, grouting, anchoring and pre-tightening integrated bolting device, including: the anchor rod mechanism comprises an anchor rod 4, and a grouting channel 14 is arranged in the anchor rod 4 along the length direction of the anchor rod; the driving mechanism is connected with the anchor rod mechanism and used for driving the anchor rod 4 to rotate so as to realize drilling and pre-tightening; the grouting mechanism is connected with the grouting channel 14 and is used for grouting into the grouting channel 14; and the propelling mechanism is connected with the driving mechanism and is used for propelling the anchor rod 4 to drill. The anchor rod mechanism is a structure integrating a drilling function, a grouting function and a pre-tightening function; the driving mechanism is used for providing driving force for drilling and pre-tightening the anchor rod mechanism; the grouting mechanism is used for injecting slurry into the drill hole 13 through the anchor rod mechanism to realize the anchoring effect; and the propelling mechanism is used for providing the drilling propelling force for the anchor rod mechanism in the drilling process.
Specifically, the anchor rod mechanism comprises an anchor rod 4, a grouting channel 14 is arranged in the anchor rod 4 along the length direction of the anchor rod, and the grouting channel 14 is preferably cylindrical so that grout can flow from the tail end of the anchor rod 4 to the top end and can be injected into a finished drilled hole 13 to achieve the anchoring effect. The output end of the driving mechanism is connected with the tail end of the anchor rod 4 and used for driving the anchor rod 4 to rotate in different directions, and drilling action and pre-tightening action are respectively realized. The grouting mechanism is connected with the tail end of the anchor rod 4, and after the anchor rod 4 completes drilling operation, the grouting mechanism performs grouting on the grouting channel 14 and finally flows into the drill hole 13 to realize anchoring. The driving end of the propelling mechanism is connected with the tail end of the anchor rod 4, and the propelling mechanism propels the anchor rod 4 along the drilling direction while the anchor rod 4 rotates to drill, so that the anchor rod 4 drills, and the drilling depth is completed.
In one embodiment of the invention the first end of the rock bolt 4 is provided with a drill bit 5, the drill bit 5 being provided with a grout outlet 16 communicating with the grout passage 14. It will be appreciated that the first end of the bolt 4, i.e. the trailing end of the bolt 4, is provided with a drill bit 5, the drill bit 5 being fixedly connected to the bolt 4 and remaining in synchronous rotation. The drill bit 5 rotates to act on the surrounding rock 10, and drilling operation is achieved.
Furthermore, the drill 5 is provided with a slurry outlet 16 communicated with the slurry injection channel 14, so that the slurry injection channel 14 is communicated with the drill hole 13. The drill bit 5 is of a hollow structure and is sleeved at the tail end of the anchor rod 4, the inner diameter of the drill bit 5 is larger than the diameter of the grouting channel 14, and the outer diameter of the drill bit 5 is larger than the outer diameter of the anchor rod 4. The axis of the drill bit 5 coincides with the axis of the anchor rod 4, the grout outlet 16 is arranged on one side of the axis of the drill bit 5, the flowing direction of grout in the grout outlet 16 is from the top of the anchor rod 4 to the tail of the anchor rod 4, namely, the grouting mechanism flows into the grouting channel 14 at the tail end of the anchor rod 4, flows into the drill bit 5, flows into the bottom of the drill hole 13 from the grout outlet 16, and flows from the bottom of the drill hole 13 to the starting part, so that anchoring is completed.
In one embodiment of the invention, the second end of the anchor rod 4 is sequentially provided with a limit block 6, a pre-tightening nut 7, a self-aligning ball pad 8 and a tray 9 along the direction from the second end to the first end of the anchor rod 4, and the second end of the anchor rod 4 is provided with a thread matched with the pre-tightening nut 7 in a threaded manner. It can be understood that the second end of stock 4, that is the tail end of stock 4, is equipped with stopper 6, nut 7 that pretensions, aligning ball pad 8 and tray 9, and stopper 6, nut 7 that pretensions, aligning ball pad 8 and tray 9 set gradually along the direction of second end to first end of stock 4, that is the drilling direction, and all with stock 4 coaxial line.
Specifically, the tray 9 is sleeved on the anchor rod 4, and the aligning ball pad 8 is sleeved on the anchor rod 4 and is adapted to the tray 9. The screw thread spiro union adaptation of pretension nut 7 and 4 second ends of stock to as the transmission piece of rotatory power, that is to say, actuating mechanism acts on pretension nut 7, and pretension nut 7 drives stock 4 and rotates and realize drilling, and actuating mechanism drive pretension nut 7 rotation produces pressure to aligning ball pad 8, and aligning ball pad 8 acts on tray 9, and tray 9 and 10 wall adaptations of country rock realize the pretension of stock 4.
The limiting block 6 is arranged at the end of the second end of the anchor rod 4, the size of the limiting block 6 perpendicular to the axial direction of the anchor rod 4 is larger than the inner diameter of the pre-tightening nut 7 and smaller than the outer diameter of the pre-tightening nut 7, namely, the limiting block 6 plays a role in limiting the pre-tightening nut 7 to the rotation of the second end of the anchor rod 4, and the pre-tightening nut 7 is prevented from being separated from the anchor rod 4. It is worth explaining that when the driving mechanism drives the pre-tightening nut 7 to move along the direction back to the drilling direction of the anchor rod 4, the limiting block 6 has a limiting effect on the pre-tightening nut 7 to prevent the pre-tightening nut 7 from being separated from the anchor rod 4, and at the moment, the anchor rod 4 and the pre-tightening nut 7 rotate together to realize drilling; when the driving mechanism drives the pre-tightening nut 7 to move along the drilling direction, the pre-tightening nut 7 rotates relative to the anchor rod 4 to generate pressure on the aligning ball pad 8 and the tray 9, and pre-tightening is achieved.
In one embodiment of the invention, the stopper 6 is provided with a grouting through hole 15 communicating with the grouting passage 14. As can be understood, the stopper 6 is disposed on the end side of the tail end of the anchor rod 4 and maintains a coaxial line. The limiting block 6 is provided with a grouting through hole 15, the grouting through hole 15 is coaxial with the grouting channel 14 and communicated with the grouting channel 14, so that the grouting mechanism is communicated with the grouting channel 14 through the grouting through hole 15, and the limiting effect on the pre-tightening nut 7 is guaranteed to be achieved on the premise that grouting is not affected.
In one embodiment of the invention, the driving mechanism comprises a driver 2, and the output end of the driver 2 is connected with the pre-tightening nut 7 for driving the pre-tightening nut 7 to rotate forwards or backwards. It will be appreciated that the drive mechanism comprises a driver 2, the driver 2 acting as a power take-off for both drilling and pretensioning operations. The output end of the driver 2 is connected with the pre-tightening nut 7, and the forward installation or reverse rotation of the pre-tightening nut 7 is driven by adjusting the rotation direction of the output end of the driver 2.
Specifically, the output end of the driver 2 drives the pre-tightening nut 7 to rotate reversely, namely, to rotate anticlockwise, the pre-tightening nut 7 moves in the direction deviating from the drilling direction, and under the action of the limiting block 6, the pre-tightening nut 7 cannot move in the direction deviating from the drilling direction any more, and at the moment, the anchor rod 4 and the pre-tightening nut 7 synchronously rotate anticlockwise to complete the drilling operation; the output drive pretension nut 7 corotation of driver 2, clockwise rotation promptly, pretension nut 7 removes along the drilling direction, and at this moment, pretension nut 7 rotates relative stock 4, produces pressure to aligning ball pad 8 and tray 9, and the lateral wall effect of tray 9 and country rock 10 realizes the pretension.
In one embodiment of the invention, the drive 2 is an electric motor, a cylinder, a hydraulic cylinder or an internal combustion engine. It will be appreciated that the driver 2 acts as a power take-off for rotation of the pretensioning nut 7, preferably an electric motor.
In one embodiment of the invention, the grouting mechanism comprises a grouting pump 3, and a grout inlet of the grouting pump 3 is connected with the grouting channel 14. It will be appreciated that the grouting pump 3 is arranged to deliver an anchoring agent into the grouting channel 14 and thus into the borehole 13 for anchoring. Specifically, the grouting pump 3 is fixedly installed at the output end of the driver 2, the pre-tightening nut 7 is slidably embedded at the output end of the grouting pump 3, and the grouting pump 3 and the output end of the driver 2 synchronously rotate. The nut of pretension nut 7 and 4 afterburns of stock links to each other, and during the pretension, because stock 4 is anchored, driver 2 drives pretension nut 7 and rotates, and stock 4 is fixed motionless, realizes that pretension nut 7 removes to 4 head directions of stock.
In one embodiment of the invention the propulsion mechanism comprises a base 1 and a propulsion boom 12, the propulsion boom 12 being arranged on the base 1, the output end of the propulsion boom 12 being connected to a drive mechanism for propelling the rock bolt 4 in the drilling direction. It can be understood that the propelling mechanism comprises a base 1 and a propelling drill boom 12, the base 1 is a vertically arranged support plate, one end of the base 1 is in contact with the side wall of the surrounding rock 10, and the side wall of the surrounding rock 10 supports the base 1. The pushing boom 12 is fixedly mounted on the vertical side of the base 1 and the output of the pushing boom 12 and the driver 2, that is, the output of the pushing boom 12 pushes the driver 2 in the drilling direction, and the grouting pump 3 and the anchor rod 4 are moved synchronously with the driver 2. The drill boom 12 is propelled to output drilling power for the drilling operation of the rock bolt 4.
In one embodiment of the invention, the base 1 is provided with a guide rail 11 arranged in the drilling direction, and the driving mechanism is slidably arranged on the guide rail 11. It will be appreciated that the guide rail 11 is arranged on the vertical side of the base 1 in the drilling direction, and that the guide rail 11 is arranged on the same side as the pushing boom 12. The driver 2 is slidably arranged on a guide rail 11 and slides close to the surrounding rock 10 under the propelling action of a propelling boom 12. The guide rail 11 supports and guides the anchor rods 4 during the advancement of the advancing drill boom 12.
The embodiment of the invention also provides a construction method of the anchor rod 4 supporting device, which comprises the following steps:
the anchor rod 4 is driven to rotate along a first direction through the driving mechanism, and the anchor rod 4 is pushed to drill to a preset depth through the pushing mechanism;
grouting the borehole 13 from the grouting channel 14 to a preset anchoring length through a grouting mechanism;
and the pre-tightening nut 7 in the anchor rod mechanism is driven to rotate and pre-tighten along the second direction by the driving mechanism.
The embodiment of the invention provides a construction method of a drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device, which specifically comprises the following steps:
drilling a hole in the surrounding rock 10, selecting a position to be drilled on the side wall of the surrounding rock 10 according to actual needs, and arranging the base plate at a position corresponding to the side wall of the surrounding rock 10 to enable the anchor rod 4 to correspond to the position to be drilled; the driver 2 is started to rotate anticlockwise to drive the grouting pump 3 and the pre-tightening nut 7 to rotate reversely, the pre-tightening nut 7 drives the anchor rod 4 to rotate reversely under the action of the limiting block 6, and at the moment, the pre-tightening nut 7 and the anchor rod 4 are relatively static; the output end of the drill boom 12 is pushed to push the driver 2, so that the anchor rod 4 drills, the drill bit 5 is in contact with the surrounding rock 10 and performs a drilling function, and when the depth of the drilled hole 13 meets the construction requirement, the driver 2 stops working to complete the drilling operation;
grouting and anchoring, starting a grouting pump 3, enabling an anchoring agent to enter a drill hole 13 from the output end of the grouting pump 3 through a grouting through hole 15, a grouting channel 14 and a grout outlet 16 of a limiting block 6 in sequence, and flowing from the bottom of the drill hole 13 to the initial part, and stopping the grouting pump 3 when the anchoring length is met, thereby completing grouting and anchoring operation;
supporting and pre-tightening; open driver 2 corotation clockwise, drive grouting pump 3 and pretension nut 7 corotation, because stock 4 anchor is in drilling 13, with surrounding rock 10 fixed connection, pretension nut 7 removes along the drilling direction to constantly extrude aligning ball pad 8, tray 9 and surrounding rock 10, when the pretightning force satisfies the construction requirement, driver 2 stop work, accomplish the pretension operation, dismantle base plate, driver 2 and grouting pump 3 to the position of waiting to drill next.
One or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:
through set up slip casting passageway 14 in stock 4, actuating mechanism drive stock 4 is rotatory, and simultaneously, advancing mechanism impels stock 4 to bore, realize the drilling and the pretension of stock 4 to country rock 10, slip casting mechanism passes through slip casting passageway 14 and to the interior slip casting of drilling 13, realize stock 4's anchor effect, and then realized stock 4 supporting device drilling, slip casting anchor, the pretension integration, moreover, the steam generator is simple in structure, and convenient for operation simplifies the construction process, the supporting effect has been guaranteed, and the efficiency is strutted in the improvement, realize automatic operation.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.
Claims (10)
1. The utility model provides a drilling slip casting anchor pretension integration anchor bolt support device which characterized in that includes:
the anchor rod mechanism comprises an anchor rod, and a grouting channel is arranged in the anchor rod along the length direction of the anchor rod;
the driving mechanism is connected with the anchor rod mechanism and used for driving the anchor rod to rotate so as to realize drilling and pre-tightening;
the grouting mechanism is connected with the grouting channel and is used for grouting to the grouting channel;
and the propelling mechanism is connected with the driving mechanism and is used for propelling the anchor rod to drill.
2. The integrated anchor-bolt support device for drilling, grouting, anchoring and pretightening of claim 1, wherein the first end of the anchor bolt is provided with a drill bit, and the drill bit is provided with a grout outlet communicated with the grouting passage.
3. The drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device as claimed in claim 2, wherein a limiting block, a pre-tightening nut, a self-aligning ball pad and a tray are sequentially arranged at the second end of the anchor rod along the direction from the second end to the first end of the anchor rod, and threads matched with the pre-tightening nut in a threaded manner are arranged at the second end of the anchor rod.
4. The drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device as claimed in claim 3, wherein the limiting block is provided with a grouting through hole communicated with the grouting channel.
5. The integrated anchor-bolt support device with the functions of drilling, grouting, anchoring and pre-tightening according to claim 3, wherein the driving mechanism comprises a driver, and the output end of the driver is connected with the pre-tightening nut and used for driving the pre-tightening nut to rotate forwards or backwards.
6. The integrated anchor-bolt support device for drilling, grouting, anchoring and pretensioning according to claim 5, wherein the driver is an electric motor, an air cylinder, a hydraulic cylinder or an internal combustion engine.
7. The integrated anchor-bolt support device for drilling, grouting, anchoring and pretightening of claim 1, wherein the grouting mechanism comprises a grouting pump, and a grout inlet of the grouting pump is connected with the grouting channel.
8. The integrated bolting device according to claim 1, wherein said propelling means comprises a base and a propelling boom, said propelling boom being disposed on said base, an output end of said propelling boom being connected to said driving means for propelling said bolt in a drilling direction.
9. The integrated anchor supporting device for the grouting, anchoring and pretightening of the drill hole as claimed in claim 8, wherein a guide rail is arranged on the base along the drilling direction, and the driving mechanism is slidably arranged on the guide rail.
10. A method of constructing a borehole grouting anchored pre-tensioned integrated bolting device according to any one of claims 1 to 9, characterised by the steps of:
the driving mechanism drives the anchor rod to rotate along a first direction, and the propelling mechanism propels the anchor rod to drill to a preset depth;
grouting the borehole from the grouting channel to a preset anchoring length through the grouting mechanism;
and driving a pre-tightening nut in the anchor rod mechanism to rotate and pre-tighten along a second direction through the driving mechanism.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011045647.8A CN112360505A (en) | 2020-09-28 | 2020-09-28 | Drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device and construction method |
| PCT/CN2021/121477 WO2022063326A1 (en) | 2020-09-28 | 2021-09-28 | Spraying temporary support and bolt permanent support method and system |
| US18/062,095 US20230095265A1 (en) | 2020-09-28 | 2022-12-06 | Method and system for temporary coating supporting and permanent bolt supporting |
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| CN202011045647.8A CN112360505A (en) | 2020-09-28 | 2020-09-28 | Drilling, grouting, anchoring and pre-tightening integrated anchor rod supporting device and construction method |
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| CN113027499A (en) * | 2021-04-01 | 2021-06-25 | 中国铁建重工集团股份有限公司 | Anchor rod trolley and anchor rod mechanism thereof |
| CN113090307A (en) * | 2021-04-30 | 2021-07-09 | 中煤科工开采研究院有限公司 | Anchor bolt support construction equipment |
| CN113090308A (en) * | 2021-04-30 | 2021-07-09 | 中煤科工开采研究院有限公司 | Anchor bolt support construction device |
| CN113090305A (en) * | 2021-04-30 | 2021-07-09 | 中煤科工开采研究院有限公司 | Anchor bolt support construction method |
| CN113090306A (en) * | 2021-04-30 | 2021-07-09 | 中煤科工开采研究院有限公司 | Multifunctional anchor rod support construction equipment |
| CN113187527A (en) * | 2021-04-30 | 2021-07-30 | 中煤科工开采研究院有限公司 | Automatic construction method of anchor rod |
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| CN113217051A (en) * | 2021-04-30 | 2021-08-06 | 中煤科工开采研究院有限公司 | Multifunctional anchor rod support construction device |
| CN113294183A (en) * | 2021-04-30 | 2021-08-24 | 中煤科工开采研究院有限公司 | Anchor rod construction assembly |
| WO2022063326A1 (en) * | 2020-09-28 | 2022-03-31 | 中煤科工开采研究院有限公司 | Spraying temporary support and bolt permanent support method and system |
| CN115450677A (en) * | 2022-10-28 | 2022-12-09 | 渭南陕煤启辰科技有限公司 | Anchor rod support construction method |
| CN117780404A (en) * | 2024-02-27 | 2024-03-29 | 杭州京科智能装备制造有限公司 | Drilling, loading and anchoring integrated intelligent anchor rod mechanism and construction method |
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| WO2022063326A1 (en) * | 2020-09-28 | 2022-03-31 | 中煤科工开采研究院有限公司 | Spraying temporary support and bolt permanent support method and system |
| CN113027499A (en) * | 2021-04-01 | 2021-06-25 | 中国铁建重工集团股份有限公司 | Anchor rod trolley and anchor rod mechanism thereof |
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| CN113217051A (en) * | 2021-04-30 | 2021-08-06 | 中煤科工开采研究院有限公司 | Multifunctional anchor rod support construction device |
| CN113294183A (en) * | 2021-04-30 | 2021-08-24 | 中煤科工开采研究院有限公司 | Anchor rod construction assembly |
| CN113090305A (en) * | 2021-04-30 | 2021-07-09 | 中煤科工开采研究院有限公司 | Anchor bolt support construction method |
| CN113090308A (en) * | 2021-04-30 | 2021-07-09 | 中煤科工开采研究院有限公司 | Anchor bolt support construction device |
| WO2022227402A1 (en) * | 2021-04-30 | 2022-11-03 | 中煤科工开采研究院有限公司 | Anchor rod construction assembly |
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| CN113090307B (en) * | 2021-04-30 | 2023-08-25 | 中煤科工开采研究院有限公司 | Anchor bolt support construction equipment |
| CN113090305B (en) * | 2021-04-30 | 2023-12-29 | 中煤科工开采研究院有限公司 | Anchor bolt support construction method |
| CN113090308B (en) * | 2021-04-30 | 2024-02-06 | 中煤科工开采研究院有限公司 | Anchor bolt support construction device |
| CN113187527B (en) * | 2021-04-30 | 2024-06-04 | 中煤科工开采研究院有限公司 | Automatic construction method for anchor rod |
| CN113217051B (en) * | 2021-04-30 | 2024-05-31 | 中煤科工开采研究院有限公司 | Multifunctional anchor bolt support construction device |
| CN115450677A (en) * | 2022-10-28 | 2022-12-09 | 渭南陕煤启辰科技有限公司 | Anchor rod support construction method |
| CN117780404B (en) * | 2024-02-27 | 2024-05-14 | 杭州京科智能装备制造有限公司 | Drilling, loading and anchoring integrated intelligent anchor rod mechanism and construction method |
| CN117780404A (en) * | 2024-02-27 | 2024-03-29 | 杭州京科智能装备制造有限公司 | Drilling, loading and anchoring integrated intelligent anchor rod mechanism and construction method |
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Application publication date: 20210212 |