CN111810127B - Laser positioning drilling stress meter mounting rod and mounting method thereof - Google Patents
Laser positioning drilling stress meter mounting rod and mounting method thereof Download PDFInfo
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- CN111810127B CN111810127B CN202010640541.6A CN202010640541A CN111810127B CN 111810127 B CN111810127 B CN 111810127B CN 202010640541 A CN202010640541 A CN 202010640541A CN 111810127 B CN111810127 B CN 111810127B
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- 238000005553 drilling Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 32
- 230000009471 action Effects 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 3
- 239000003245 coal Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000011900 installation process Methods 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The application relates to a laser positioning drilling stress meter mounting rod and a mounting method thereof, wherein the mounting rod comprises a rod body formed by coaxially and sequentially connecting a plurality of rod body units end to end, and further comprises a laser control device, wherein a laser module, a battery module and a switch control module which are electrically connected with each other are arranged in the laser control device, one end of the laser control device, provided with the laser module, is connected with the starting end of the rod body, the other end of the laser control device, provided with the switch control module, is connected with a stress meter, and under the action of the switch control module, the laser light emitted by the laser module is changed in a lighting and extinguishing mode and is observed at the tail end of the rod body. The installation rod is used for installing the stress timing, the installation and angle adjustment operation are convenient and fast, the installation accuracy is high, and the installation efficiency is greatly improved.
Description
Technical Field
The present application relates to the field of general measurement of forces or stresses, and further to devices for replacing, setting, locking, removing or retrieving tools, packers or the like in a borehole or well, and in particular to a laser-positioned borehole stress meter mounting rod and a method of mounting the same.
Background
The pressure pillow type drilling stress meter is used as a device capable of monitoring the stress distribution and change of coal and rock mass, is very popular in coal mines, and is particularly used for monitoring the change rule of the stress of the coal mass around a stope along with mining in the mining process. The main structure of the pressure pillow type drilling stress meter is a pressure pillow and a inclusion, the upper surface inclusion and the lower surface inclusion transfer the stress of coal rock mass around a drilling hole to the pressure pillow, the stress is converted into the liquid pressure in the pillow, and then a pressure transmitter is used for converting a liquid pressure signal into an electric signal to be uploaded to the ground through a down-hole ring network. The special structure of the inclusion leads to the deformation of the stress meter having obvious unidirectional property, which receives the stress in the direction perpendicular to the plane of the pressure pillow, so that the stress meter needs to ensure that the installation direction meets the requirement when being installed.
Because the underground installation environment is severe, and the problems of bending in drilling direction, hole collapse and coal rock powder accumulation are easy to occur in the drilling due to the influences of drilling construction technical differences and coal rock mass strength, the stress meter needs to be repeatedly rotated and pushed and pulled in the installation process, so that the installation angle of the stress meter cannot be accurately controlled, technicians cannot obtain the real change condition of relative stress, and the monitoring and early warning of the stress change of the coal rock mass are not facilitated, so that the safety production of a mine is directly influenced.
In order to solve the above problems, chinese patent application publication No. CN 205138683U discloses a drilling stress meter installation rod, which comprises an installation rod body and an adjusting mechanism, wherein a plurality of rod body units are in threaded connection to form the rod body, an adjusting mechanism comprising a spring one, a sliding block, a rotating wheel, a steel wire rope, a buckle mechanism and the like is connected between the rod body and the stress meter, the buckle mechanism is controlled by the steel wire rope in the rod body, the installation angle of the stress meter is controlled by a calibration line and a direction compass, the calibration line is kept to be a straight line when the rod body units are in butt joint, the direction compass comprises a deep groove ball bearing and a gravity hammer, the bearing inner ring of the deep groove ball bearing is provided with a key groove, the direction compass is connected with the rod body through the key groove, and the angle indicated by a pointer at the key groove is the installation angle. In addition, the rotating rod is inserted into the rod body, and the installation depth and the installation angle of the stress meter are adjusted through pushing and pulling or rotating.
The technical scheme disclosed in the above patent has the defects that the steel wire rope needs to pass through the rod body in the connection process of the mounting rod and is wound on the rotating wheel, the structure is complex, the operation is complex, the internal operation space of the cavity of the mounting head is narrow, the components such as the spring, the sliding block, the rotating wheel and the steel wire rope are difficult to mount, and the mounting precision is low. Moreover, when adjacent rod body units are in butt joint, the alignment line is required to be aligned, then the steering compass is operated, the adjustment precision is greatly influenced by human factors, the positioning precision of the installation angle is low, and the high-quality and high-efficiency performance of the installation and monitoring work is not facilitated. In addition, all rod body units forming the rod body are connected by adopting sleeve nuts, the structure is complex, the operation is difficult, the components are more easy to lose, and the processing cost is high.
Disclosure of Invention
The application aims to solve the technical problem of providing the laser positioning drilling stress meter mounting rod, which is used for mounting the stress timing, is convenient and quick to mount and adjust the angle, has high mounting precision and greatly improves the mounting efficiency.
The application discloses a laser positioning drilling stress meter mounting rod, which comprises a rod body formed by coaxially and sequentially connecting a plurality of rod body units end to end, and further comprises a laser control device, wherein a laser module, a battery module and a switch control module which are electrically connected with each other are arranged in the laser control device, one end of the laser control device, which is provided with the laser module, is connected with the starting end of the rod body, the other end of the laser control device, which is provided with the switch control module, is connected with a stress meter, and under the action of the switch control module, the laser light emitted by the laser module is changed in a lighting and extinguishing mode and is observed at the tail end of the rod body.
The application discloses a laser positioning drilling stress meter mounting rod, wherein rod body units comprise plastic pipes, two ends of each plastic pipe are coaxially connected with an external thread joint and an internal thread joint, and adjacent rod body units are in butt joint through the external thread joint and the internal thread joint.
The application discloses a laser positioning drilling stress meter mounting rod, wherein a laser control device comprises a rod body connecting end, a battery bin and a stress meter connecting end which are sequentially connected along the axial direction of the laser control device, a laser module, a battery module and a switch control module are respectively positioned in the rod body connecting end, the battery bin and the stress meter connecting end, the rod body connecting end is connected with an internal thread joint of a first rod body unit, and the stress meter connecting end is connected with a stress meter.
The application discloses a laser positioning drilling stress meter mounting rod, which comprises a laser emitter and a laser circuit board which are electrically connected with each other, wherein the battery module comprises a battery pack, a spring and a spring fixing plate, the spring fixing plate is fixed in a battery bin through a check ring, one end of the spring is in close contact with the battery pack, the other end of the spring is fixed on the spring fixing plate, the battery pack is in close contact with the laser circuit board, the switch control module comprises an angle tilt switch, a power switch and a switch fixing plate, the switch fixing plate is fixed inside a stress meter connecting end, and the angle tilt switch and the power switch are electrically connected and are welded on the switch fixing plate.
The application relates to a laser positioning drilling stress meter mounting rod, wherein through holes are formed in butt joint positions among a plastic pipe, an external thread connector and an internal thread connector, and a connecting piece penetrates through the through holes to tightly press and fix the external thread connector and the internal thread connector at two ends of the plastic pipe.
The application discloses a laser positioning drilling stress meter mounting rod, wherein the left end of a stress meter is provided with a mounting guide rod which extends out, and the right end of a stress meter connecting end is provided with a mounting guide groove which is matched with the mounting guide rod.
The application relates to a laser positioning drilling stress meter mounting rod, wherein the end part of a rod body connecting end is in threaded connection with a protective cap.
The application discloses a laser positioning drilling stress meter mounting rod, wherein rod body connecting ends, stress meter connecting ends and battery bins are in threaded connection, and sealing rings are arranged at the connecting positions.
The application also provides a mounting method of the mounting rod of the laser positioning drilling stress meter, which comprises the following steps:
s1: taking out the laser control device and opening the power switch;
s2: the rod body and the stress body are respectively connected with two ends of the laser control device and then pushed into the drill hole together;
s3: slowly pushing the stress gauge into the drill hole, and simultaneously expanding and straightening the coiled oil pipe along the winding direction;
s4: pushing the stress meter to a designated depth, continuously rotating the rod body in a clockwise direction until the laser light on-off change occurs at one end of the rod body, which is far away from the stress meter, and stopping rotating;
s5: applying initial pressure to the stress gauge by using an oil pump, and rotating the rod body in the anticlockwise direction to withdraw the rod body from the drill hole, so that the laser control device is separated from the stress gauge;
s6: and taking out the rod body and the laser control device from the drill hole.
Further, in the step S2, first, a first-section rod unit and a stress meter are connected with a laser control device and pushed into the drill hole, then, the first-section rod unit is connected with other rod units section by section, and each section of rod unit is sequentially connected end to form a rod body adapting to the depth of the drill hole; in the step S4, under the action of the angle tilt switch, the external thread joint of the end rod body unit has the change of the on-off of the laser light; in the step S6, the rod units withdrawn from the borehole are disassembled section by section according to the withdrawal length. Until the rod body and the laser control device are all taken out of the drill hole.
Compared with the prior art, the mounting rod and the mounting method thereof have the advantages that the rod body units adopt the plastic pipe and the alloy material as the main bodies, the mounting rod has the advantages of light weight, high strength, corrosion resistance and wear resistance, and obvious advantages in the aspects of convenience in transportation, assembly and disassembly, and all the rod body units are directly connected through the matched threaded connectors, so that the mounting rod has the advantages of simple structure, few components, low cost, reliable connection, convenience in operation and difficulty in losing. Meanwhile, the joint-by-joint connection process of the rod body units and the pushing process of the stress meter into the drill hole do not need to manage the instant state of the installation rod, and the angle of the stress meter is adjusted by rotating the rod body according to the laser ray state only after the stress meter reaches the appointed installation position in the drill hole, so that the installation and adjustment steps are greatly simplified, the installation time is saved, the installation efficiency of the stress meter in the underground special environment is remarkably improved, and the operability is strong. In addition, the rod body, the stress meter and the laser control device are in butt joint only by axial alignment, the axial alignment is simple and convenient to operate, the success rate is high, the adverse effect of manual operation on the installation and adjustment precision is greatly reduced, and the high quality and high efficiency of the installation and monitoring work of the stress meter are ensured.
In a word, the installation angle of the drilling stress meter is accurately controlled through the simple, reliable and easy-to-operate structure, so that the installation process of the drilling stress meter is more convenient and efficient, and the problems of complex installation process, easy loss of parts and low positioning accuracy of the drilling stress meter in the prior art are practically solved.
The laser positioning drilling stress meter mounting rod and the mounting method thereof are further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view of an assembly structure of a laser positioning borehole stress meter mounting rod and a stress meter of the present application;
FIG. 2 is a front view of a laser positioning borehole stress meter mounting bar of the present application;
FIG. 3 is a front cross-sectional view showing the assembled state of the head section rod body unit and the connecting end of the rod body in the laser positioning drilling stress meter mounting rod of the application;
FIG. 4-1 is a front view of a head section rod body unit in a laser positioning drill stress gauge mounting rod of the present application;
FIG. 4-2 is a cross-sectional view A-A of FIG. 4-1;
FIG. 5-1 is a schematic view of the through hole location of a plastic tube in a laser positioning borehole stress meter mounting bar of the present application;
FIG. 5-2 is a section B-B of FIG. 5-1;
FIG. 6-1 is a schematic view of the through hole location of an external thread nipple in a laser positioning borehole stress meter mounting bar of the present application;
FIG. 6-2 is a C-C cross-sectional view of FIG. 6-1;
FIG. 7-1 is a schematic view of the through hole location of an internally threaded nipple in a laser positioning borehole stress meter mounting rod of the present application;
FIG. 7-2 is a section view D-D of FIG. 7-1;
FIG. 8-1 is a front view of a laser control device in a laser positioning borehole stress meter mounting bar of the present application;
FIG. 8-2 is a cross-sectional view of a laser control device in a laser positioning borehole stress meter mounting bar of the present application;
FIG. 9-1 is a front view of a shank coupling tip in a laser positioning drill stress gauge mounting rod of the present application;
FIG. 9-2 is a section E-E of FIG. 9-1;
FIG. 10 is a cross-sectional view of a battery compartment in a laser positioning borehole stress gauge mounting bar of the present application;
FIG. 11-1 is a front view of a stress gauge connecting head in a laser positioning borehole stress gauge mounting bar of the present application;
FIG. 11-2 is a right side view of the connection tip of the strain gauge in the laser positioning borehole strain gauge mounting bar of the present application;
FIG. 11-3 is a cross-sectional view of F-F of FIG. 11-2;
fig. 11-4 is a G-G cross-sectional view of fig. 11-3.
Detailed Description
As shown in fig. 1, the laser positioning drilling stress meter mounting rod of the application comprises a rod body and a laser control device 200 coaxially connected with the rod body, wherein the rod body comprises a plurality of rod body units 100 with the same structure, the rod body units 100 are coaxially and sequentially connected end to form a rod body, and the laser control device 200 is connected with a stress meter 35.
As shown in fig. 4-1 and 4-2, the structure of the rod unit 100 according to the present application will be described by taking the first-joint rod unit 100 that interfaces with the laser control apparatus 200 as an example. The rod unit 100 includes a plastic pipe 3, and an external screw thread joint 1 and an internal screw thread joint 2 coaxially connected to both left and right ends thereof, wherein the external screw thread joint 1 and the internal screw thread joint 2 are made of common alloy materials, such as aluminum alloy. The plastic pipe 3, the external thread connector 1 and the internal thread connector 2 are hollow, the external thread connector 1 is provided with an external thread A6, the internal thread connector 2 is provided with an internal thread A7 matched with the external thread A6, and the threads of the external thread connector 1 and the internal thread connector 2 are meshed with each other, so that the butt joint between each two adjacent rod units 100 is realized.
In order to firmly connect the components of the rod unit 100, as shown in fig. 2, 3 and 5-1 to 7-2, through holes 5 are formed in the left and right ends of the plastic tube 3, the right end of the male threaded joint 1 and the left end of the female threaded joint 2, and in this embodiment, the number of through holes 5 on the 3 components is 3 and uniformly distributed along the circumferential direction. The two ends of the plastic pipe 3 are inserted into through holes 5 of the outer thread joint 1 and the inner thread joint 2, and the through holes 5 are aligned, and the connecting piece 4 passes through the outer thread joint 1 and the inner thread joint 2 from outside to inside to tightly press and fix the two ends of the plastic pipe 3, so as to form a rod body unit 100.
As shown in fig. 8-1 and 8-2, the laser control device 200 comprises a rod body connecting end 10, a battery compartment 13 and a stress meter connecting end 17, wherein the rod body connecting end 10, the battery compartment 13 and the stress meter connecting end 17 are sequentially connected from left to right along the axial direction, an inner thread B21 is arranged on the inner wall of the right end of the rod body connecting end 10, an outer thread B22 is arranged on the outer wall of the left end of the battery compartment 13, and the inner thread B21 and the outer thread B22 are meshed with each other to realize connection of the rod body connecting end 10 and the battery compartment 13. The outer wall of the right end of the battery compartment 13 is provided with an external thread C23, the inner wall of the left end of the stress meter connecting end 17 is provided with an internal thread C24, and the battery compartment 13 is in meshed connection with the stress meter connecting end 17 through the external thread C23 and the internal thread C24. Preferably, in order to make the connection between the rod body connection end 10 and the rod body unit 100 more tightly as shown in fig. 9-1 and 9-2, a locking bayonet 27 is added at one end of the rod body connection end 10 near the external thread D20, and the locking bayonet 27 is a concave portion, and the concave portion provides a clamping operation surface for tools such as a wrench, so that the tools can be used for fastening. Preferably, in order to ensure the sealing performance of the threaded connection portion, as shown in fig. 10, a sealing ring a25 is disposed at the connection portion between the rod body connection end 10 and the battery compartment 13, and a sealing ring B26 is disposed at the connection portion between the battery compartment 13 and the stress gauge connection end 17. Preferably, in order to make the connection between the battery compartment 13 and the stress meter connecting end 17 more compact, as shown in fig. 11-1, a second locking bayonet 28 is added at one end of the battery compartment 13 near the external thread C23, and a third locking bayonet 38 is added at the middle of the stress meter connecting end 17. The second locking bayonet 28 and the third locking bayonet 38 have the same function as the first locking bayonet 27. As shown in fig. 2 and 3, the left end of the rod body connecting end 10 is provided with an external thread D20, the inner wall of the internal thread connector 2 of the first-joint rod body unit 100 is provided with an internal thread D7, and the external thread D20 and the internal thread D7 cooperate to realize the connection between the rod body connecting end 10 and the internal thread connector 2 of the first-joint rod body unit 100. Referring to fig. 1, 11-1 to 11-4, in order to ensure that the stress meter 35 can be smoothly and reliably connected with the laser control device 200, a mounting guide rod 36 extending towards the stress meter connecting end 17 is arranged at the left end of the stress meter 35, a mounting guide groove 29 matched with the mounting guide rod 36 is arranged at the right end of the stress meter connecting end 17, the mounting guide rod 36 is pushed into the mounting guide groove 29 and the whole laser control device 200 is rotated clockwise to complete the connection between the laser control device 200 and the stress meter 35, and when the laser control device is separated from the stress meter 35, an initial pressure is firstly applied to the stress meter 35, and then the laser control device 200 is rotated anticlockwise and pulled out of a drill hole, so that the laser control device 200 is separated from the stress meter 35. While the above description is given by taking a conservator type stress meter as an example, the mounting rod of the present application can be used for other types of conventional stress meters in specific engineering applications, the stress meter connecting end 17 is only required to be connected by adaptively deforming according to the specific structure of the end of the stress meter, or the stress meter connecting end 17 is connected by welding or other methods, however, other easily conceivable connecting modes are also possible according to the inventive concept of the present application, and are not listed here.
As shown in fig. 8-1 and 8-2, the laser control device 200 is internally provided with a laser module, a battery module and a switch control module which are electrically connected with each other, and the laser module, the battery module and the switch control module are respectively positioned in the rod body connecting end 10, the battery compartment 13 and the stress meter connecting end 17. The laser module comprises a laser transmitter 11 and a laser circuit board 12 which are electrically connected with each other. Preferably, the laser emitter 11 and the laser circuit board 12 are both fixed inside the rod body connecting end 10 through hot melt fixing glue 30. The battery module comprises a battery pack 14, a spring 15 and a spring fixing plate 16, wherein the spring fixing plate 16 is fixed in a battery compartment 13 through a retainer ring 31, the left end of the spring 15 is in close contact with the battery pack 14, the right end of the spring is fixed on the spring fixing plate 16, the battery pack 14 is placed in the battery compartment 13 to cause the spring 15 to be compressed, and the battery pack 14 is in close contact with a laser circuit board 12 under the action of the elasticity of the spring 15, so that normal circuit power supply is ensured. The switch control module comprises an angle tilt switch 18, a power switch 19 and a switch fixing plate 32, wherein the switch fixing plate 32 is fixed inside the stress meter connecting end 17 through a locating pin 33, and the angle tilt switch 18 and the power switch 19 are electrically connected and all welded on the switch fixing plate 32. When the rod body deviates from the horizontal position, the inclined switch probe of the angle inclined switch 18 deviates from the horizontal position, the metal ball contact in the switch acts, the normally closed contact is disconnected, the circuit is disconnected, the laser transmitter 11 stops working, and the laser is turned off; when the rod body returns to the horizontal position, the tilt switch is reset, the metal ball contact is closed again, the circuit is conducted, the laser transmitter 11 starts to work, and the laser is bright. Preferably, in order to ensure the sealing performance of the stress meter connecting end 17 and facilitate the use of the power switch 19, a recessed window 34 is formed in the housing of the stress meter connecting end 17, the power switch 19 is packaged in the housing, and the swing handle of the power switch 19 extends out of the window 34, so that the operation is facilitated. Preferably, the left end of the rod body connecting end 10 is provided with a protective cap 8, and the external thread D20 at the left end of the rod body connecting end 10 is matched with the internal thread E9 on the inner wall of the protective cap 8, so that the protective cap 8 is in threaded connection with the rod body connecting end 10. When the laser control device 200 is separated from the rod unit 100 in the non-operating state, the protection cap 8 is connected with the rod connecting end 10 to protect the laser transmitter 11.
When the laser positioning drilling stress meter mounting rod is practically applied in engineering, the mounting direction of the stress meter 35 can be controlled by adopting the laser positioning drilling stress meter mounting rod, so that the aim of monitoring the stress of a coal rock mass is fulfilled, and the laser positioning drilling stress meter mounting rod mounting method comprises the following steps:
s1: the laser control device 200 is taken out, the protective cap 8 is unscrewed, and the power switch 19 is turned on at the window 34;
s2: the first-section rod body unit 100 and the stress meter 35 are respectively connected with the laser control device 200 and then pushed into a drill hole together, and then a plurality of rod body units 100 are connected on the first-section rod body unit 100 according to the drill hole depth until the length of a rod body formed by sequentially connecting the first-section rod body units 100 end to end meets the requirement, and laser emitted by the laser emitter 11 is transmitted to the external thread joint 1 of the last-section rod body unit 100 far away from the stress meter 35 along the inner part of the rod body;
s3: slowly pushing the stress gauge 35 into the borehole, and simultaneously expanding and straightening the coiled oil pipe 37 along the winding direction;
s4: pushing the stress meter 35 to a specified depth, continuously rotating the rod body in a clockwise direction, starting and stopping the laser transmitter 11 under the action of the angle tilt switch 18 in the rotating process, and stopping the rotation of the rod body when the laser light on-off change (from on to off or from off to on) occurs at the external thread nipple 1 of the tail rod body unit 100;
s5: applying initial pressure to the stress gauge 35 by using an oil pump, and then rotating the rod body in the anticlockwise direction to forcefully extract the rod body from the borehole, so that the laser control device 200 is separated from the stress gauge 35;
s6: after detachment, the rod unit 100 is disassembled section by section according to the withdrawal length until the rod and the laser control apparatus 200 are all removed from the borehole.
The rod body units 100 in the laser positioning drilling stress meter mounting rod are not provided with calibration lines, the respective instant states do not need to be managed when the rod body units 100 are connected into the rod body, only coaxial alignment is needed, and the mounting process is very convenient. Meanwhile, when the stress meter 35 is installed by adopting the installation rod, the installation direction of the stress meter 35 is adjusted by only rotating the rod body and observing the on-off change of the laser ray, no complex operation is needed in the whole process, the installation adjustment is reliable, the accuracy is high, and the installation efficiency of the stress meter 35 is greatly improved. In addition, the mounting rod is suitable for different types of stress meters, and has wide application range and strong practicability.
The above examples are only illustrative of the preferred embodiments of the present application and are not intended to limit the scope of the present application, and various modifications and improvements made by those skilled in the art to the technical solution of the present application should fall within the scope of protection defined by the claims of the present application without departing from the spirit of the present application.
Claims (8)
1. The utility model provides a laser positioning drilling stress meter installation pole, includes the body of rod that forms by coaxial end to end connection in proper order of a plurality of section pole body units (100), its characterized in that: the laser control device (200) is internally provided with a laser module, a battery module and a switch control module which are electrically connected with each other, one end of the laser control device (200) provided with the laser module is connected with the starting end of the rod body, the other end of the laser control device provided with the switch control module is connected with a stress meter (35), and under the action of the switch control module, the laser light emitted by the laser module is changed in brightness and is observed at the tail end of the rod body;
the laser control device (200) comprises a rod body connecting end (10), a battery bin (13) and a stress meter connecting end (17) which are sequentially connected along the axial direction of the laser control device, wherein the laser module, the battery module and the switch control module are respectively positioned in the rod body connecting end (10), the battery bin (13) and the stress meter connecting end (17), the rod body connecting end (10) is connected with an internal thread connector (2) of the rod body unit (100) at the first section, and the stress meter connecting end (17) is connected with the stress meter (35);
the laser module comprises a laser emitter (11) and a laser circuit board (12) which are electrically connected with each other, the battery module comprises a battery pack (14), a spring (15) and a spring fixing plate (16), the spring fixing plate (16) is fixed in a battery bin (13) through a check ring (31), one end of the spring (15) is tightly contacted with the battery pack (14), the other end of the spring is fixed on the spring fixing plate (16), the battery pack (14) is tightly contacted with the laser circuit board (12), the switch control module comprises an angle tilt switch (18), a power switch (19) and a switch fixing plate (32), the switch fixing plate (32) is fixed inside a stress meter connecting end (17), and the angle tilt switch (18) and the power switch (19) are electrically connected and are all welded on the switch fixing plate (32).
2. The laser positioning borehole stressmeter mounting rod of claim 1, wherein: the rod body unit (100) comprises a plastic pipe (3), two ends of the plastic pipe (3) are coaxially connected with an external thread joint (1) and an internal thread joint (2), and adjacent rod body units (100) are in butt joint through the external thread joint (1) and the internal thread joint (2).
3. The laser positioning borehole stressmeter mounting rod of claim 2, wherein: the plastic pipe (3), the external thread joint (1) and the internal thread joint (2) are provided with through holes (5) at the butt joint positions, and the connecting piece (4) penetrates through the through holes (5) to tightly press and fix the external thread joint (1) and the internal thread joint (2) at two ends of the plastic pipe (3).
4. A laser positioning borehole stressmeter mounting rod according to claim 3, wherein: the left end of the stress gauge (35) is provided with an extended installation guide rod (36), and the right end of the stress gauge connecting end head (17) is provided with an installation guide groove (29) matched with the installation guide rod (36).
5. The laser positioning borehole stressmeter mounting rod of claim 4, wherein: the end part of the rod body connecting end head (10) is connected with a protective cap (8) through threads.
6. The laser positioning borehole stressmeter mounting rod of claim 5, wherein: the rod body connecting end (10), the stress meter connecting end (17) and the battery bin (13) are in threaded connection, and sealing rings (25 and 26) are arranged at the connecting positions.
7. The method of installing a laser positioning borehole stressmeter installation rod according to any one of claims 1-6, wherein: the method comprises the following steps:
s1: taking out the laser control device (200) and opening the power switch (19);
s2: the rod body and the stress gauge (35) are respectively connected to two ends of the laser control device (200) and then pushed into the drill hole together;
s3: slowly pushing the stress gauge (35) into a drill hole, and simultaneously expanding and straightening the coiled oil pipe (37) along the winding direction;
s4: pushing the stress meter (35) to a designated depth, continuously rotating the rod body in a clockwise direction until the laser light on-off change occurs at one end of the rod body far away from the stress meter (35), and stopping rotating;
s5: applying initial pressure to the stress gauge (35) by using an oil pump, rotating the rod body in a counterclockwise direction to withdraw the rod body from the drill hole, and separating the laser control device (200) from the stress gauge (35);
s6: the rod body and the laser control device (200) are all taken out of the drill hole.
8. The mounting method according to claim 7, wherein:
in the step S2, first, a first-section rod unit (100) and a stress meter (35) are connected with a laser control device (200) and pushed into the drill hole, then, the other rod units (100) are connected on the first-section rod unit (100) section by section, and all the rod units (100) are connected end to end in sequence to form a rod body adapting to the depth of the drill hole;
in the step S4, under the action of the angle tilt switch (18), the external thread joint (1) of the end rod body unit (100) has the change of the on-off of laser light;
in step S6, the rod body units (100) withdrawn from the drill holes are disassembled section by section according to the withdrawal length until the rod body and the laser control device (200) are all taken out from the drill holes.
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| CN202010640541.6A CN111810127B (en) | 2020-07-06 | 2020-07-06 | Laser positioning drilling stress meter mounting rod and mounting method thereof |
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| CN202010640541.6A CN111810127B (en) | 2020-07-06 | 2020-07-06 | Laser positioning drilling stress meter mounting rod and mounting method thereof |
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| CN111810127A (en) | 2020-10-23 |
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