CN218598226U - Automatic drilling, grouting and anchoring integrated system - Google Patents
Automatic drilling, grouting and anchoring integrated system Download PDFInfo
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- CN218598226U CN218598226U CN202223002581.1U CN202223002581U CN218598226U CN 218598226 U CN218598226 U CN 218598226U CN 202223002581 U CN202223002581 U CN 202223002581U CN 218598226 U CN218598226 U CN 218598226U
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Abstract
The utility model discloses an automatic change and bore notes anchor integration system, including drilling system, stock, anchoring agent pumping system, wherein: the drilling system comprises a drill bushing, a drill shaft and a water jacket, the anchor rod comprises a rod body and a drill bit arranged at the front end of the rod body, and a sealing gasket, a self-locking nut, a spherical nut and a base plate are sequentially arranged at the tail part of the rod body; a stirring core is arranged in the drill bushing, one end of the stirring core is connected with the drill shaft, and the other end of the stirring core is connected with the tail of the anchor rod body; and a water jacket is arranged outside the drill shaft. The drill bushing and the anchor rod of the utility model have no rigid connection, after the anchor rod is installed, the drilling machine can directly return to the initial machine position, and the installation efficiency of the anchor rod is improved; the working idea of a self-drilling anchor rod is introduced, the hollow anchor rod is used for replacing a drill rod to realize the drilling function, the problem of 'splitting drilling and anchoring' is solved, and the anchor rod installation efficiency is improved; the conical sealing washer is adopted, the sealing between the rod body and the drill bushing is completed through the pushing pressure of the drilling machine, and the sealing is more reliable compared with the circumferential sealing.
Description
Technical Field
The utility model relates to an automatic change and bore notes anchor integration system.
Background
The anchor bolt support can effectively control the deformation of surrounding rocks, and is widely used in the fields of domestic and foreign coal mines, metal mines and the like. Taking the coal mine roadway fast excavation supporting as an example, the existing anchor bolt supporting process flow comprises the following steps: manually loading a drill rod, drilling a hole in the surrounding rock of the coal mine tunnel by using the drill rod, withdrawing and manually disassembling the drill rod, manually plugging an anchoring agent into the drilled hole, putting the anchor rod into the hole, stirring the anchoring agent, and pre-tightening the anchor rod after the anchoring agent is solidified. The above process has the following problems:
(1) After drilling, the drilling machine needs to return to disassemble the drill rod, surrounding rocks are easy to collapse under the action of stress to cause hole collapse, particularly, the collapsed holes of the broken coal rocks are serious, the phenomenon that workers insert anchoring agents after the hole collapse is caused, the anchoring agents can be installed only after a longer time is consumed, and the supporting efficiency is reduced;
(2) After the anchor rod drilling machine drills a hole, the drilling machine needs to be retracted, then the drill rod is taken out manually, the anchor rod is aligned with the anchor hole, and the drilling machine is operated to push the anchor rod into the anchor hole. The replacement action of the drill rod and the anchor rod increases the support operation time, and reduces the support efficiency;
(3) In the traditional process, workers are required to disassemble a drill rod, load anchoring agents and load an anchor rod in the drilling and anchoring processes, so that the manual intervention links are more, and the automatic construction of the anchor rod cannot be realized.
With the development of science and technology, the anchoring technology is also updated, and the pumpable modified polyurethane has the characteristics of good fluidity before mixing, rapid thixotropic reaction, constant anchoring force and the like. Compared with the traditional resin anchoring agent, the thixotropic reaction of the material is quicker, and compared with the bearing period of 10-15 minutes of the resin anchoring agent, the pretightening force can be applied earlier and more timely.
Although mechanized equipment such as a tunneling and anchoring all-in-one machine and the like are adopted for supporting the coal mine tunnel gradually, in the process of tunneling the tunnel, the supporting equipment is not matched with the threaded steel anchor rod for automatic construction, a large number of manual operation procedures exist in the supporting process, and the tunneling efficiency is still limited.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned shortcoming of prior art, the utility model provides an automatic change and bore notes anchor integration system.
The utility model provides a technical scheme that its technical problem adopted is: an automatic drilling, grouting and anchoring integrated system comprises a drilling system, an anchor rod and an anchoring agent pumping system, wherein: the drilling system comprises a drill bushing, a drill shaft and a water jacket, the anchor rod comprises a rod body and a drill bit arranged at the front end of the rod body, and a sealing gasket, a self-locking nut, a spherical nut and a base plate are sequentially arranged at the tail part of the rod body; the drill sleeve is internally provided with a stirring core, one end of the stirring core is connected with the drill shaft, and the other end of the stirring core is connected with the tail part of the anchor rod body; and a water jacket is arranged outside the drill shaft.
Compared with the prior art, the utility model has the positive effects that:
(1) Compared with the traditional supporting process, the utility model saves the procedures of drill rod disassembly, anchor rod loading, anchor rod propulsion and anchoring agent stirring in the traditional process, reduces the participation of workers in each link of the process, can realize automatic supporting of the anchor rod by a matched automatic drilling and grouting anchor system, improves the automatic supporting efficiency of the anchor rod and reduces the labor intensity of the workers;
(2) By adopting an anchoring agent pumping system and a mode of pumping the modified polyurethane, the technical problems of automatic installation of anchoring agents, difficulty in loading hole collapse anchoring agents into anchor holes and the like can be effectively solved by manpower, the automation degree of anchor rod installation is easily improved, and the automatic modification of equipment is facilitated;
(3) The utility model discloses a bore and annotate anchor drilling system compares in traditional equipment only need to change partial part and can make to equip the ability that possess semi-automatic construction fast. The drill bushing is not rigidly connected with the anchor rod, and the drilling machine can directly return to an initial machine position after the anchor rod is installed, so that the installation efficiency of the anchor rod is improved;
(4) The working idea of a self-drilling anchor rod is introduced, the hollow anchor rod is used for replacing a drill rod to realize the drilling function, the problem of 'splitting drilling and anchoring' is solved, and the installation efficiency of the anchor rod is improved;
(5) The conical sealing washer is adopted, the sealing between the rod body and the drill bushing is completed through the pushing pressure of the drilling machine, and the sealing is more reliable compared with the circumferential sealing;
(6) The novel embedded drill bit is developed aiming at different geological coal rock conditions, is suitable for automatic construction of a coal mine, and has better economical efficiency.
Drawings
The invention will be described by way of example and with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a drilling system;
FIG. 2 is a schematic view of the construction of the drill spindle;
FIG. 3 is a schematic diagram of the construction of a drill sleeve;
fig. 4 is a schematic view of the self-locking drilling principle, wherein: (1) During pre-tightening, the drill bushing rotates anticlockwise, the spherical nut is separated from a self-locking state, and the spherical nut is screwed in along the rod body to abut against the base plate; (2) When the anchor rod drills, the drill bushing drives the spherical nut to rotate clockwise, and the spherical nut and the self-locking nut form self-locking;
FIG. 5 is a structural schematic of the anchor rod;
FIG. 6 is a schematic diagram of a process comparison;
the reference numbers in the figures include: the device comprises a drill bush 1, a stirring core 2, a drill shaft 3, a water jacket 4, metric threads 5, a conical sealing washer 6, a self-locking nut 7, a spherical nut 8, a backing plate 9, a rod body 10 and a drill bit 11.
Detailed Description
The utility model provides an automatic change and bore notes anchor integration system, includes anchor agent pumping system, bores and annotates anchor drilling system, bores and annotates the integrative stock of anchor, wherein:
1. anchoring agent pumping system
The pumping system comprises: resin storage device, catalyst storage device, resin pump, catalyst pump, conveying pipeline and stirrer. Aiming at the pumpable silicate-modified polyurethane anchoring material, the anchoring agent pumping system can realize single quantitative pumping, the pumping pressure is about 10-15 Mpa, the system can work off line and can also work together with a trolley, and the off-line trolley can be used for independently treating coal mine caving, collapsed side and roof collapse geological disasters; the supporting platform truck can realize the automatic installation of stock.
2. Drilling, grouting, anchoring and drilling system
The current roofbolter structure only can realize creeping into the function, can't satisfy the construction requirement of automatic supporting, for realizing boring notes anchor integrative construction, the utility model discloses improve rig spare part structure, concrete content as follows:
as shown in fig. 1, the drilling system comprises a drill bushing 1, a stirring core 2, a drill shaft 3 and a water jacket 4, wherein:
the structure of the drill spindle 3 is as shown in fig. 2, in order to meet the construction requirements of low-pressure drilling of an anchor rod, high-pressure ester injection, quick water-through cleaning after the ester injection and the like, a double-channel drill spindle is designed, and two channels are drilled in the drill spindle: the anchor rod cooling device comprises a first channel 31 and a second channel 32, wherein in the drilling process of the anchor rod, cooling water is introduced into the first channel 31 to cool a drill bit; in the ester injection process, polyurethane and a catalyst enter the drill bushing 1 through the first channel 31 and the second channel 32, the polyurethane is prevented from being solidified in the drill shaft, and the phenomenon that the polyurethane is mixed in advance to cause channel blockage of the drill rotating shaft 3 is avoided.
The structure of the drill bushing 1 is as shown in fig. 3, and is used for drilling, injecting and anchoring integrated anchor rod construction, so that the rapid butt joint of the anchor rod and the drill bushing is realized, the joint of the butt joint of the drill bushing and the anchor rod is subjected to customized design, and the functions of anchor rod drilling rotation, ester injection stirring sealing, pre-tightening force application, drill machine retreating and the like are met.
The multifunctional drill bushing is internally provided with a spiral stirring core 2, one end of the multifunctional drill bushing is provided with a metric thread 5 and is connected with an output rotating shaft of a drilling machine, and the other end of the multifunctional drill bushing is provided with a stirring core hole, a conical sealing hole, a self-locking nut hole and a hexagonal hole from inside to outside in sequence and is respectively used for placing the stirring core 2, a conical sealing washer 6, a self-locking nut 7 and a spherical nut 8.
The drill bushing 1 drives the spherical nut 8 to rotate clockwise, the spherical nut 8 retreats and abuts against the locking nut 7, the two forms self-locking, and the drilling, grouting and anchoring integrated anchor rod drilling function is met, as shown in (2) of fig. 4.
The conical sealing washer 6 is pushed by pushing pressure to be tightly attached to the rod body and the drill bushing in the pushing process, so that good sealing conditions are provided for injecting ester.
The stirring core 2 arranged in the drill bushing uniformly stirs the injected modified polyurethane, so that the thixotropic reaction speed of the material is accelerated.
The drill bushing 1 rotates anticlockwise, the spherical nut 8 is separated from the self-locking state, and the spherical nut is screwed in along the rod body to abut against the base plate, so that the output torque of the device is converted into axial pretightening force, as shown in (1) of fig. 4.
In order to realize the dual-channel ester injection and the supply of drilling cooling water, a dual-channel water jacket is designed, as shown in fig. 1, a first channel 41 is connected with a first channel 31 drilled in a drill shaft 3, an external cooling water pipe is connected with a resin raw material pipe, a second channel 42 is connected with a second channel 32 drilled in the drill shaft 3, and an external catalyst raw material pipe can meet the requirements of drilling, cleaning water supply, ester injection and the like of a drilling, injection and anchoring integrated anchor rod.
The utility model discloses a drilling mechanism compares and changes lessly in traditional rig, can equip at present and modify fast, makes its matching bore notes anchor integral type stock nut size and construction method.
The utility model discloses a toper is sealed: the circumferential sealing in the drill sleeve is improved, the sealing ring is designed to be conical and is provided with internal threads, the conical sealing washer 6 is made of rubber or silica gel, the sealing washer deforms under the pressure of the propelling of the drilling machine in the drilling process, the conical sealing washer is tightly attached to the rod body and the drill sleeve, the gap between the rod body and the drill sleeve is eliminated, and the sealing device has a good sealing effect in the ester injection process.
The utility model discloses a structure of boring integrative stock of notes anchor is shown in figure 5, including conical seal ring 6, self-locking nut 7, spherical nut 8, backing plate 9, the body of rod 10 and drill bit 11.
Combine above-mentioned construction to equip, the utility model discloses to artifical "boring anchor division" problem of dismantling the installation stock behind the drilling rod in the technology is strutted to the tradition, introduce cavity self-drilling stock and two nut auto-lock work theory, designed a service standard 25 cavity stocks, replace traditional anchoring agent with modified polyurethane, through the brill of cavity stock hole pump sending to anchor eye bottom anchoring and annotate anchor integral type stock.
The utility model discloses a body of rod 10 adopts the cavity stock to replace the drilling rod construction, and two nut auto-locks provide and creep into power. The spherical nut 8 is rotated clockwise, the spherical nut 8 retreats and supports the self-locking nut 7 tightly, the double-nut self-locking drives the rod body to rotate and drill, the self-locking state can be separated by reverse rotation after the drilling is in place, the spherical nut 8 is screwed in along the rod body, the backing plate 9 is supported tightly and the output torque of the equipment is converted into axial pretightening force, and the pretightening is completed.
From the economy, on the premise of realizing cutting drilling and meeting anchoring strength, aiming at coal rock geological conditions with different hardness levels, the drill bit matched with soft coal, medium-hard coal and the above is adopted, the appearance structure of the drill bit is developed in a customized manner according to the surrounding rock conditions, the hardness of the cutting edge part is improved by combining the surrounding rock hardness, compared with the traditional drill bit, the drill bit for customized development is more suitable for automatic construction of different coal mine geology, and the drill bit is more economical to adjust according to the coal rock hardness.
According to the equipment and the supporting product, the anchor rod construction method is optimized, the processes of disassembling a drill rod, loading the anchor rod, propelling the anchor rod and stirring the anchoring agent in the traditional process are omitted, the anchoring agent loading process and the stirring process are integrated at the same time, the anchoring agent is injected into the bottom of an anchor hole through a hollow anchor rod inner hole in a pumping mode, the anchoring agent is stirred with the anchor rod inner hole through a built-in stirring core of a drill bushing in the process, the components A and B are uniformly mixed, and the anchor rod can be quickly anchored, as shown in figure 6. The specific construction method comprises the following steps:
step one, mounting an anchor rod;
installing a drill matched with the geological conditions of the coal rock at the front end of the anchor rod body;
step two, drilling by a drilling machine:
the drill sleeve 1 drives the spherical nut 8 to rotate clockwise, the spherical nut 8 retreats and abuts against the self-locking nut 7, the double nuts self-lock drives the anchor rod to drill in a rotating manner, and in the drilling process, cooling water is introduced into the first channel 31 of the drill shaft through the first channel of the water jacket to cool the drill bit;
step three, pumping the anchoring agent:
an anchoring agent pumping system is adopted to pump polyurethane and a catalyst to the first channel and the second channel of the drill shaft 3 through the first channel 41 and the second channel 42 of the water jacket respectively, and the modified polyurethane is pumped to the bottom of the anchor hole through the inner hole of the hollow anchor rod;
step four, removing the drill and flushing;
step five, waiting for coagulation;
step six, pre-tightening:
after drilling in place, the drill bushing 1 drives the spherical nut 8 to rotate anticlockwise, the self-locking state can be separated, the spherical nut 8 is screwed in along the rod body, the base plate 9 is tightly abutted, the torque output by the drilling machine is converted into axial pretightening force, and pretightening is completed.
The novel process saves four supporting procedures, overcomes the technical difficulty of automatic construction of the anchor rod, can realize automatic supporting of the anchor rod by matching with an automatic drilling, injecting and anchoring integrated system, improves the efficiency of anchor rod supporting and reduces the labor intensity of workers.
Claims (9)
1. The utility model provides an automatic change and bore notes anchor integration system which characterized in that: the drilling system, the anchor rod and the anchoring agent pumping system are included, wherein: the drilling system comprises a drill bushing, a drill shaft and a water jacket, the anchor rod comprises a rod body and a drill bit arranged at the front end of the rod body, and a sealing gasket, a self-locking nut, a spherical nut and a base plate are sequentially arranged at the tail of the rod body; a stirring core is arranged in the drill bushing, one end of the stirring core is connected with the drill shaft, and the other end of the stirring core is connected with the tail of the anchor rod body; and a water jacket is arranged outside the drill spindle.
2. The automated drill-grouting-anchor integrated system according to claim 1, wherein: one end of the drill bushing connected with the drill shaft is provided with metric threads.
3. The automated drill-grouting-anchor integrated system according to claim 1, wherein: the sealing washer is conical and is internally threaded.
4. The automated drill-grouting-anchor integrated system according to claim 1, wherein: the water jacket is provided with a first channel and a second channel which are respectively connected with the first channel and the second channel drilled in the drill spindle.
5. The automated drill-grouting-anchor integrated system according to claim 4, wherein: the first channel is arranged on the water jacket and is externally connected with a cooling water pipe or a resin raw material pipe, and the second channel is externally connected with a catalyst raw material pipe.
6. The automated drill-grouting-anchor integrated system according to claim 1, wherein: the sealing washer is made of rubber or silica gel.
7. The automated drill-grouting-anchor integrated system according to claim 1, wherein: the rod body is a hollow rod body.
8. The automated drill-grouting-anchor integrated system according to claim 1, wherein: and a sealing hole, a self-locking nut hole and a hexagonal hole are formed in the drill bushing and are respectively used for placing a sealing washer, a self-locking nut and a spherical nut.
9. The automated drill-grouting-anchor integrated system according to claim 1, wherein: the anchoring agent pumping system comprises: a resin storage device and a catalyst storage device, and a resin pump and a catalyst pump which are respectively connected with the resin storage device and the catalyst storage device through delivery pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223002581.1U CN218598226U (en) | 2022-11-10 | 2022-11-10 | Automatic drilling, grouting and anchoring integrated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223002581.1U CN218598226U (en) | 2022-11-10 | 2022-11-10 | Automatic drilling, grouting and anchoring integrated system |
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| Publication Number | Publication Date |
|---|---|
| CN218598226U true CN218598226U (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223002581.1U Active CN218598226U (en) | 2022-11-10 | 2022-11-10 | Automatic drilling, grouting and anchoring integrated system |
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| Country | Link |
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| CN (1) | CN218598226U (en) |
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- 2022-11-10 CN CN202223002581.1U patent/CN218598226U/en active Active
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