CN114991765B - Complex weak surrounding rock tunnel rock sample collection device and application method thereof - Google Patents
Complex weak surrounding rock tunnel rock sample collection device and application method thereof Download PDFInfo
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- CN114991765B CN114991765B CN202210832953.9A CN202210832953A CN114991765B CN 114991765 B CN114991765 B CN 114991765B CN 202210832953 A CN202210832953 A CN 202210832953A CN 114991765 B CN114991765 B CN 114991765B
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- 239000011435 rock Substances 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000005070 sampling Methods 0.000 claims abstract description 102
- 230000005540 biological transmission Effects 0.000 claims abstract description 58
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 6
- 239000003381 stabilizer Substances 0.000 claims abstract description 5
- 230000001360 synchronised effect Effects 0.000 claims description 40
- 230000001681 protective effect Effects 0.000 claims description 13
- 238000005553 drilling Methods 0.000 claims description 4
- 239000002689 soil Substances 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
-
- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
-
- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
-
- 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
- E21B3/00—Rotary drilling
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
- E21B49/06—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil using side-wall drilling tools pressing or scrapers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a complex weak surrounding rock tunnel rock sample collection device and a use method thereof, comprising the following steps: the base box is fixedly connected with four stabilizer bars between the upper inner wall and the lower inner wall of the base box; the drill bit feeding mechanism is arranged in the base box and comprises four adjusting plates, hydraulic rods and a supporting plate, the four adjusting plates are sleeved on the four stabilizing rods in a sliding mode, the four hydraulic rods are fixedly arranged on the outer surface of the upper side of the adjusting plates, and the supporting plate is fixedly connected to the output ends of the four hydraulic rods; according to the invention, the rectangular box is driven by the drill bit feeding mechanism to be immersed in surrounding rock, the two sampling threaded rods synchronously rotate, the transmission plate drives the three sampling drill bits to drill into the surrounding rock at the upper part of the tunnel with different depths respectively, and crushed samples of the surrounding rock can enter the sampling drill bits, so that surrounding rock sampling with different layers is completed at one time, the sampling time of staff is saved, and the working efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of rock stratum sampling equipment, and particularly relates to a complex weak surrounding rock tunnel rock sample collecting device and a using method thereof.
Background
In rock underground works, surrounding rock mass, which changes in stress state due to the influence of excavation, is called surrounding rock. Surrounding rock is also called main rock and ore-holding rock. The rock surrounding the ore body and the rock surrounding the rock body are both called surrounding rock. The most concerned problem for tunnel engineering is the stability of the stratum after being excavated into the tunnel, which is called the stability of surrounding rock of the tunnel, which is a comprehensive index reflecting geological environment, and it is self-evident that the stability of the stratum means that the deformation of the stratum into the tunnel caused by the excavation of the tunnel is very small and can be basically stopped in a short time, which is very beneficial to the construction process and the supporting structure.
In the process of tunnel construction, in order to survey the stability of a tunnel, surrounding rocks above the tunnel need to be sampled, research and analysis are carried out, sampling equipment generally used for rock strata is a shallow hole capable of drilling tens of meters in surface soil and the rock strata, soil samples and rock cores can be taken, but most of rock stratum sampling equipment drills and samples downwards from the ground, rock and soil of different soil layers cannot be sampled at one time, workers are required to sample different layers of the surrounding rocks above the tunnel according to different steps, and the working efficiency is low.
Disclosure of Invention
The invention aims at: inside entering the country rock on tunnel upper portion with rock stratum sampling mechanism through drill bit jack-in mechanism, the sampling work of multiple soil layer can once only be accomplished to rock stratum sampling mechanism, saves staff's sample time, improves work efficiency.
The technical scheme adopted by the invention is as follows: a complex weak surrounding rock tunnel rock sample collection device, comprising:
the base box is fixedly connected with four stabilizer bars between the upper inner wall and the lower inner wall of the base box;
The drill bit feeding mechanism is arranged in the base box and comprises an adjusting plate, hydraulic rods and a supporting plate, the four stabilizing rods are sleeved on the adjusting plate in a sliding mode, the four hydraulic rods are fixedly arranged on the outer surface of the upper side of the adjusting plate, and the supporting plate is fixedly connected with the output ends of the four hydraulic rods;
The rock wall sampling mechanism is arranged on the upper side of the drill bit feeding mechanism and comprises a rectangular box, jacking drill bits, a transmission plate, two sampling threaded rods, three sampling motors and three sampling drill bits, wherein the rectangular box is rotationally connected to the upper side of a supporting plate, the jacking drill bits are fixedly connected to the outer surface of the upper side of the rectangular box, the two sampling threaded rods are rotationally connected between the inner walls of the two sides of the rectangular box, the transmission plate is in threaded connection with the two sampling threaded rods, the three sampling drill bits are rotationally connected to the outer surface of one side of the transmission plate, the three sampling motors are fixedly arranged on the outer surface of the other side of the transmission plate, and the output ends of the three sampling motors are fixedly connected with the corresponding sampling drill bits; and
And the height adjusting assembly is arranged on the base box.
Wherein, four side surface of base case all fixedly connected with stable landing leg.
The outer surface of the lower side of the supporting plate is fixedly provided with a jacking motor, and the outer surface of the lower side of the rectangular box is fixedly connected with the output end of the jacking motor.
The rock wall sampling mechanism further comprises a side connection box and two first synchronous gears, the side connection box is fixedly connected to one side outer surface of the rectangular box, the two first synchronous gears are all rotationally connected between one side inner wall of the side connection box and one side outer surface of the rectangular box, and one side outer surface of the two first synchronous gears is fixedly connected with one ends of the two sampling threaded rods respectively.
The rock wall sampling mechanism further comprises two transmission gears and a transmission motor, wherein one transmission gear is rotatably connected to one side inner wall of the rectangular box, the other transmission gear is fixedly sleeved on the corresponding sampling threaded rod, the two transmission gears are in meshed connection, the transmission motor is fixedly installed on one side inner wall of the rectangular box, and the output end of the transmission motor is fixedly connected with one side outer surface of the corresponding transmission gear.
The rock wall sampling mechanism further comprises two limiting rods, the two limiting rods are fixedly connected between the inner walls of the two sides of the rectangular box, and the transmission plate is slidably sleeved on the two limiting rods.
The height adjusting assembly comprises two groups of lifting threaded rods, each group of lifting threaded rods is provided with two lifting threaded rods, each group of lifting threaded rods is connected between the upper inner wall and the lower inner wall of the base box in a rotating mode, and each group of lifting threaded rods is in threaded connection with the adjusting plate.
The height adjusting assembly further comprises a lower connecting box and two groups of driving gears, the lower connecting box is fixedly connected to the outer surface of the lower side of the base box, each group of driving gears are arranged in two groups, each group of driving gears are rotationally connected between the inner wall of one side of the lower connecting box and the outer surface of the lower side of the base box, each group of driving gears are fixedly connected with the lower end of the corresponding lifting threaded rod, and each group of driving gears are in transmission connection through driving toothed belts.
The height adjusting assembly further comprises a lifting motor, a second synchronous gear and a protective shell, wherein the protective shell is fixedly connected to the outer surface of the lower side of the lower connecting box, the second synchronous gears are arranged in two, the second synchronous gears are all rotationally connected to the outer surface of the lower side of the lower connecting box and the bottom inner wall of the protective shell, the second synchronous gears are respectively and fixedly connected with the corresponding two driving gears, the lifting motor is fixedly installed on the outer surface of the lower side of the protective shell, and the output end of the lifting motor is fixedly connected with one of the second synchronous gears.
The application method of the complex weak surrounding rock tunnel rock sample collection device comprises the following steps:
s1, height adjustment: the two groups of lifting threaded rods are driven to rotate through the lifting motor to drive the adjusting plate to lift, so that the rectangular box type jacking drill bit can contact with the upper rock wall surrounding rock of the tunnel.
S2, rock stratum drilling: the rectangular box is driven to rotate through the jacking motor, the jacking drill bit can drill the upper rock wall of the tunnel, and the four hydraulic rods can jack up the supporting plate upwards, so that the rectangular box enters the rock stratum.
S3, hierarchical sampling: the transmission plate is driven to move through rotation of the two sampling threaded rods, so that three sampling drill bits move towards the inside of the rock stratum, the three sampling motors drive the sampling drill bits to rotate, and the three sampling drill bits drill and sample the inside of the rock wall.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. According to the invention, after the jacking drill bit is driven by the drill bit feeding mechanism to drill into the surrounding rock at the upper part of the tunnel, the rectangular box is immersed into the surrounding rock, the two sampling threaded rods are driven by the transmission motor to synchronously rotate, the three sampling drill bits are driven by the three sampling motors to rotate, the three sampling drill bits are driven by the transmission plate to respectively drill into the surrounding rock at the upper part of the tunnel with different depths, and crushed samples of the surrounding rock can enter the inside of the sampling drill bits, so that surrounding rock sampling with different layers is completed at one time, the sampling time of workers is saved, and the working efficiency is improved.
2. According to the invention, the lifting motor is started to drive the two second synchronous gears to keep synchronous rotation, the two second synchronous gears drive the two groups of driving gears to keep synchronous rotation, so that the four lifting threaded rods can keep synchronous rotation, the four lifting threaded rods can drive the adjusting plate to ascend or descend, the adjusting plate adjusts the height position of the jacking drill bit, the jacking drill bit can approach to surrounding rocks at the upper part of a tunnel, the rock wall sampling mechanism can sample the surrounding rocks at the upper part of the tunnel with various heights, and the application range is wide.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the interior of the base box of the present invention;
FIG. 3 is an exploded view of the present invention;
FIG. 4 is an exploded view of the invention at the underside of the base box;
FIG. 5 is a perspective view of a drill feed mechanism of the present invention;
FIG. 6 is a perspective view of the interior of the rectangular box of the present invention;
FIG. 7 is a perspective view of the interior of the side closure of the present invention;
FIG. 8 is a partial perspective view of a sampling drill bit of the present invention.
The marks in the figure: 1. a base box; 2. a stabilizing leg; 3. a drill feed mechanism; 301. an adjusting plate; 302. a hydraulic rod; 303. a support plate; 4. a rock wall sampling mechanism; 401. a rectangular box; 402. jacking a drill bit; 403. a drive plate; 404. sampling a threaded rod; 405. a sampling motor; 406. a sampling drill bit; 407. a limit rod; 408. a transmission gear; 409. a drive motor; 410. a side connection box; 411. a first synchronizing gear; 5. lifting the threaded rod; 6. a stabilizer bar; 7. a lifting motor; 8. jacking a motor; 9. a lower box; 10. a drive gear; 11. a second synchronizing gear; 12. and a protective shell.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Embodiment one, refer to fig. 1-2 and fig. 5-8: a complex weak surrounding rock tunnel rock sample collection device comprises a base box 1, wherein four stabilizer bars 6 are fixedly connected between the upper inner wall and the lower inner wall of the base box 1; the drill bit feeding mechanism 3, the drill bit feeding mechanism 3 is arranged in the base box 1, the drill bit feeding mechanism 3 comprises an adjusting plate 301, hydraulic rods 302 and a supporting plate 303, the adjusting plate 301 is sleeved on the four stabilizing rods 6 in a sliding mode, the four hydraulic rods 302 are fixedly arranged on the outer surface of the upper side of the adjusting plate 301, and the supporting plate 303 is fixedly connected to the output ends of the four hydraulic rods 302; the rock wall sampling mechanism 4, the rock wall sampling mechanism 4 is arranged on the upper side of the drill bit feeding mechanism 3, the rock wall sampling mechanism 4 comprises a rectangular box 401, a jacking drill bit 402, a transmission plate 403, two sampling threaded rods 404, three sampling motors 405 and three sampling drill bits 406, the rectangular box 401 is rotationally connected on the upper side of the supporting plate 303, the jacking drill bit 402 is fixedly connected on the outer surface of the upper side of the rectangular box 401, the two sampling threaded rods 404 are rotationally connected between the inner walls of the two sides of the rectangular box 401, the transmission plate 403 is in threaded connection with the two sampling threaded rods 404, the three sampling drill bits 406 are rotationally connected on the outer surface of one side of the transmission plate 403, The three sampling motors 405 are fixedly arranged on the outer surface of the other side of the transmission plate 403, and the output ends of the three sampling motors 405 are fixedly connected with the corresponding sampling drill bits 406; The height adjusting assembly is arranged on the base box 1, the four side outer surfaces of the base box 1 are fixedly connected with the stabilizing support legs 2, the lower side outer surface of the supporting plate 303 is fixedly provided with the jacking motor 8, the lower side outer surface of the rectangular box 401 is fixedly connected with the output end of the jacking motor 8, the rock wall sampling mechanism 4 further comprises a side connection box 410 and two first synchronous gears 411, the side connection box 410 is fixedly connected with one side outer surface of the rectangular box 401, the two first synchronous gears 411 are both rotationally connected between one side inner wall of the side connection box 410 and one side outer surface of the rectangular box 401, one side outer surface of the two first synchronous gears 411 is respectively fixedly connected with one ends of two sampling threaded rods 404, The rock wall sampling mechanism 4 further comprises two transmission gears 408 and a transmission motor 409, wherein the two transmission gears 408 are arranged, one transmission gear 408 is rotationally connected to one side inner wall of the rectangular box 401, the other transmission gear 408 is fixedly sleeved on the corresponding sampling threaded rod 404, the two transmission gears 408 are in meshed connection, the transmission motor 409 is fixedly arranged on one side inner wall of the rectangular box 401, the output end of the transmission motor 409 is fixedly connected with one side outer surface of the corresponding transmission gear 408, the rock wall sampling mechanism 4 further comprises two limit rods 407, the two limit rods 407 are fixedly connected between two side inner walls of the rectangular box 401, The transmission plate 403 is slidably sleeved on the two limit rods 407, the adjusting plate 301 is connected with the height adjusting assembly, the height adjusting assembly controls the lifting of the adjusting plate 301, so that the height position of the rock wall sampling mechanism 4 is controlled, the four hydraulic rods 302 lift up the supporting plate 303 to feed the rectangular box 401 and the jacking drill bit 402 into surrounding rocks at the upper part of the tunnel, the rectangular box 401 and the jacking drill bit 402 are driven to rotate when the jacking motor 8 is started, the jacking drill bit 402 can drill into the surrounding rocks at the upper part of the tunnel, when the rectangular box 401 is immersed into the surrounding rocks, the transmission motor 409 is started to drive the corresponding transmission gear 408 to rotate, the other transmission gear 408 rotates with the same to drive the corresponding sampling threaded rod 404 to rotate, the corresponding sampling threaded rod 404 drives one of the first synchronous gears 411 to rotate, the two first synchronous gears 411 keep synchronously rotating, so that the two sampling threaded rods 404 keep synchronously rotating, the three sampling drill bits 406 are driven to rotate by starting the three sampling motors 405, the two sampling threaded rods 404 move in a direction away from the inside of the rectangular box 401 through the transmission plate 403 with the three sampling drill bits 406, the two limit rods 407 enable the transmission plate 403 to keep stably and linearly moving inside the rectangular box 401, thus, the three sampling drill bits 406 respectively drill into surrounding rocks at the upper parts of tunnels with different depths, the sampling drill bits 406 drill, and crushed samples of the surrounding rocks can enter the inside of the sampling drill bits 406, so that surrounding rock sampling with different layers is completed at one time, the sampling time of workers is saved, and the working efficiency is improved.
Embodiment two, refer to fig. 2-4: the height adjusting assembly comprises two groups of lifting threaded rods 5, each group of lifting threaded rods 5 is provided with two, each group of two lifting threaded rods 5 is rotationally connected between the upper inner wall and the lower inner wall of the base box 1, each group of two lifting threaded rods 5 is in threaded connection with the adjusting plate 301, the height adjusting assembly further comprises a lower connecting box 9 and two groups of driving gears 10, the lower connecting box 9 is fixedly connected with the lower outer surface of the base box 1, each group of driving gears 10 is arranged in two, each group of two driving gears 10 is rotationally connected between one side inner wall of the lower connecting box 9 and the lower outer surface of the base box 1, each group of two driving gears 10 is fixedly connected with the lower end of the corresponding lifting threaded rod 5, each group of two driving gears 10 is in transmission connection through a driving toothed belt, the height adjusting assembly further comprises a lifting motor 7, a second synchronous gear 11 and a protective shell 12, the protective shell 12 is fixedly connected to the outer surface of the lower side of the lower connecting box 9, two second synchronous gears 11 are arranged, the two second synchronous gears 11 are both rotationally connected to the outer surface of the lower side of the lower connecting box 9 and the bottom inner wall of the protective shell 12, the two second synchronous gears 11 are respectively fixedly connected with the corresponding two driving gears 10, the lifting motor 7 is fixedly arranged on the outer surface of the lower side of the protective shell 12, the output end of the lifting motor 7 is fixedly connected with one of the second synchronous gears 11, the two second synchronous gears 11 are driven to keep synchronous rotation after the lifting motor 7 is started, the two second synchronous gears 11 drive the two groups of driving gears 10 to keep synchronous rotation, so that the four lifting threaded rods 5 can keep synchronous rotation, the forward rotation and the reverse rotation of the four lifting threaded rods 5 can drive the regulating plate 301 to ascend or descend, the regulating plate 301 drives the supporting plate 303 to ascend or descend through the hydraulic rod 302, therefore, under the condition that the hydraulic rod 302 is not started, the height position of the jacking drill bit 402 is adjusted, so that the jacking drill bit 402 can be close to surrounding rocks on the upper portion of a tunnel, and the rock wall sampling mechanism 4 can sample the surrounding rocks on the upper portion of the tunnel with various heights, so that the application range is wide.
The application method of the complex weak surrounding rock tunnel rock sample collection device comprises the following steps: step one, height adjustment: the lifting motor 7 is started to drive the two second synchronous gears 11 to synchronously rotate, the two second synchronous gears 11 drive the two groups of driving gears 10 to synchronously rotate, the four driving gears 10 drive the four lifting threaded rods 5 to synchronously rotate, the adjusting plate 301 can be driven to ascend when the four lifting threaded rods 5 rotate, the adjusting plate 301 drives the supporting plate 303 to ascend through the hydraulic rod 302, so that the height position of the jacking drill bit 402 is adjusted under the condition that the hydraulic rod 302 is not started, the jacking drill bit 402 can approach surrounding rocks at the upper part of a tunnel, and the rock wall sampling mechanism 4 can sample the surrounding rocks at the upper parts of the tunnels with various heights, so that the application range is wide; step two, rock stratum drilling: firstly, starting a jacking motor 8, driving a rectangular box 401 to rotate by the jacking motor 8, enabling a jacking drill bit 402 to rotate along with the rectangular box 401, then starting four hydraulic rods 302, enabling a supporting plate 303 to be jacked upwards by the four hydraulic rods 302, enabling surrounding rocks at the upper part of a tunnel to be continuously drilled by the jacking drill bit 402, and finally enabling the rectangular box 401 to be completely immersed into the surrounding rocks at the upper part of the tunnel; step three, hierarchical sampling: after the rectangular box 401 is immersed into surrounding rock at the upper part of a tunnel, three sampling motors 405 are started to drive three sampling drill bits 406 to rotate, then the transmission motors 409 are started, the transmission motors 409 drive corresponding transmission gears 408 to rotate, the other transmission gears 408 also rotate along with the transmission motors to drive corresponding sampling threaded rods 404 to rotate, the corresponding sampling threaded rods 404 drive one of the first synchronous gears 411 to rotate, the two first synchronous gears 411 can keep synchronously rotating, the two sampling threaded rods 404 can drive the three sampling drill bits 406 to move towards the direction separating from the inner part of the rectangular box 401 through the transmission plates 403, the two limit rods 407 enable the transmission plates 403 to keep stable linear movement in the inner part of the rectangular box 401, so that the three sampling drill bits 406 respectively drill into the inner parts of surrounding rock at the upper parts of tunnels at different depths, the sampling drill bits 406 can enter the inner parts of the sampling drill bits 406 when the surrounding rock is crushed, sampling time of surrounding rock at different layers is saved, and working efficiency is improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The utility model provides a complicated weak surrounding rock tunnel rock specimen collection device which characterized in that includes:
The base box (1), four stabilizer bars (6) are fixedly connected between the upper inner wall and the lower inner wall of the base box (1);
The drill bit feeding mechanism (3), the drill bit feeding mechanism (3) is arranged in the base box (1), the drill bit feeding mechanism (3) comprises an adjusting plate (301), hydraulic rods (302) and a supporting plate (303), the adjusting plate (301) is slidably sleeved on four stabilizing rods (6), the hydraulic rods (302) are provided with four, the four hydraulic rods (302) are fixedly arranged on the outer surface of the upper side of the adjusting plate (301), and the supporting plate (303) is fixedly connected to the output ends of the four hydraulic rods (302);
The rock wall sampling mechanism (4), rock wall sampling mechanism (4) sets up in the upside of drill bit feed mechanism (3), rock wall sampling mechanism (4) include rectangular box (401), jack-in drill bit (402), drive plate (403), two sample threaded rods (404), three sample motor (405) and three sample drill bit (406), rectangular box (401) rotate and connect in the upside of backup pad (303), jack-in drill bit (402) fixed connection is in the upside surface of rectangular box (401), two sample threaded rods (404) all rotate and connect between the both sides inner wall of rectangular box (401), drive plate (403) all threaded connection with two sample threaded rods (404), three sample drill bit (406) all rotate and connect in the one side surface of drive plate (403), three sample motor (405) all fixed mounting in the opposite side surface of drive plate (403), and the output of three sample motor (405) all fixed connection with corresponding sample drill bit (406); and
The height adjusting assembly is arranged on the base box (1).
2. The complex weak surrounding rock tunnel rock sample collection device according to claim 1, wherein: four side surfaces of base case (1) all fixedly connected with stable landing leg (2).
3. A complex weak surrounding rock tunnel rock sample collection device according to claim 2, wherein: the jacking motor (8) is fixedly arranged on the outer surface of the lower side of the supporting plate (303), and the outer surface of the lower side of the rectangular box (401) is fixedly connected with the output end of the jacking motor (8).
4. A complex weak surrounding rock tunnel rock sample collection device according to claim 3, wherein: the rock wall sampling mechanism (4) further comprises a side connection box (410) and two first synchronous gears (411), the side connection box (410) is fixedly connected to one side outer surface of the rectangular box (401), the two first synchronous gears (411) are all rotationally connected between one side inner wall of the side connection box (410) and one side outer surface of the rectangular box (401), and one side outer surfaces of the two first synchronous gears (411) are respectively fixedly connected with one ends of the two sampling threaded rods (404).
5. The complex weak surrounding rock tunnel rock sample collection device according to claim 4, wherein: the rock wall sampling mechanism (4) further comprises a transmission gear (408) and a transmission motor (409), wherein the transmission gear (408) is provided with two transmission gears, one transmission gear (408) is rotationally connected to one side inner wall of the rectangular box (401), the other transmission gear (408) is fixedly sleeved on the corresponding sampling threaded rod (404), the two transmission gears (408) are in meshed connection, the transmission motor (409) is fixedly installed on one side inner wall of the rectangular box (401), and the output end of the transmission motor (409) is fixedly connected with one side outer surface of the corresponding transmission gear (408).
6. The complex weak surrounding rock tunnel rock sample collection device according to claim 5, wherein: the rock wall sampling mechanism (4) further comprises two limiting rods (407), the two limiting rods (407) are fixedly connected between the inner walls of the two sides of the rectangular box (401), and the transmission plate (403) is slidably sleeved on the two limiting rods (407).
7. The complex weak surrounding rock tunnel rock sample collection device according to claim 6, wherein: the height adjusting assembly comprises two groups of lifting threaded rods (5), each group of lifting threaded rods (5) is provided with two lifting threaded rods, each group of lifting threaded rods (5) are connected between the upper inner wall and the lower inner wall of the base box (1) in a rotating mode, and each group of lifting threaded rods (5) are connected with the adjusting plate (301) in a threaded mode.
8. The complex weak surrounding rock tunnel rock sample collection device according to claim 7, wherein: the height adjusting assembly further comprises a lower connecting box (9) and two groups of driving gears (10), the lower connecting box (9) is fixedly connected to the outer surface of the lower side of the base box (1), each group of driving gears (10) are arranged in two groups, each group of driving gears (10) are rotationally connected between the inner wall of one side of the lower connecting box (9) and the outer surface of the lower side of the base box (1), each group of driving gears (10) are fixedly connected with the lower end of the corresponding lifting threaded rod (5), and each group of driving gears (10) are connected through driving toothed belts.
9. The complex weak surrounding rock tunnel rock sample collection device according to claim 8, wherein: the height adjusting assembly further comprises a lifting motor (7), a second synchronous gear (11) and a protective shell (12), wherein the protective shell (12) is fixedly connected to the outer surface of the lower side of the lower connecting box (9), the second synchronous gears (11) are arranged in two, the second synchronous gears (11) are all rotationally connected to the outer surface of the lower side of the lower connecting box (9) and the bottom inner wall of the protective shell (12), the two second synchronous gears (11) are fixedly connected with the corresponding two driving gears (10) respectively, the lifting motor (7) is fixedly installed on the outer surface of the lower side of the protective shell (12), and the output end of the lifting motor (7) is fixedly connected with one of the second synchronous gears (11).
10. A method for using a complex weak surrounding rock tunnel rock sample collection device according to any one of claims 1-9, comprising the steps of:
S1, height adjustment: the lifting motor (7) drives the two groups of lifting threaded rods (5) to rotate and drives the adjusting plate (301) to ascend, so that the rectangular box (401) drives the jacking drill bit (402) to contact with the surrounding rock of the upper rock wall of the tunnel;
S2, rock stratum drilling: the rectangular box (401) is driven to rotate through the jacking motor (8), the jacking drill bit (402) can drill the upper rock wall of the tunnel, and the four hydraulic rods (302) can jack up the supporting plate (303) upwards, so that the rectangular box (401) enters the rock stratum;
S3, hierarchical sampling: the transmission plate (403) is driven to move through rotation of the two sampling threaded rods (404), so that the three sampling drill bits (406) move towards the inside of the rock stratum, the three sampling motors (405) drive the sampling drill bits (406) to rotate, and the three sampling drill bits (406) drill and sample the inside of the rock wall.
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| CN117664027B (en) * | 2024-01-31 | 2024-04-19 | 中国科学院武汉岩土力学研究所 | Tunnel surrounding rock morphology acquisition device for surrounding rock classification |
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| CN114482855A (en) * | 2022-04-02 | 2022-05-13 | 陇东学院 | Soil layer drilling acquisition device for geological exploration |
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