A drill rod correction clamping device for geotechnical engineering

Abstract

The present invention discloses a drill rod correction clamping device for geotechnical engineering, which relates to the technical field of geotechnical engineering equipment, including a machine platform, a drill rod placed in the middle of the machine platform, a first correction mechanism for correcting the drill rod shaft part is arranged in the middle of the machine platform, the first correction mechanism includes two outer clamps symmetrically distributed in the middle of the machine platform, an electric push rod is installed on both sides of the machine platform, the output end of the electric push rod horizontally passes through the machine platform and is connected to the side of the outer clamp, and an inner clamp is distributed inside each of the outer clamps; a sensing mechanism for providing power is arranged inside the first correction mechanism; a second correction mechanism for correcting the drill bit part of the drill rod is arranged at the bottom of the first correction mechanism. The drill rod correction clamping device for geotechnical engineering disclosed by the present invention can correct the drill rod shaft and the drill bit synchronously, and has the effect of high work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical engineering equipment, and in particular to a drill rod deviation correction clamping device for geotechnical engineering. Background Art

[0002] The drill rod is one of the necessary components for drilling operations in geotechnical engineering. When drilling holes on the ground through the drill rod, the influence of factors such as soil quality will cause the drill rod to gradually deviate from the main axis of the drilling rig when moving in the soil. If the deviation rate exceeds the allowable value during drilling, it will affect the accuracy and efficiency of drilling. Therefore, when the drill rod is working, it is usually equipped with some additional correction devices to adjust the inclination angle of the drill rod and the drilling point position.

[0003] The existing method for correcting the deviation of small and medium-sized drill rods is to install an additional clamping device at the drilling point of the drill rod, and control the stability and verticality of the drill rod when entering the soil by clamping the drill rod. However, in actual operation, this correction method cannot, on the one hand, directly correct the position of the drill rod below the soil when the length of the drill rod in the rock and soil is too long, and the deflection of the drill rod shaft cannot be effectively adjusted. On the other hand, when the drill bit contacts a hard material and becomes deflected, the traditional correction device cannot immediately adjust the point at which the drill bit continues to drill, and the correction efficiency needs to be further improved. Summary of the invention

[0004] The invention discloses a drill rod correction clamping device for geotechnical engineering, aiming to solve the technical problem that, when the drill rod is too long in the rock and soil, the inclination of the drill rod and the point at which the drill bit continues to drill a hole cannot be adjusted immediately in the existing correction device, and the correction efficiency needs to be further improved.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A drill rod correction clamping device for geotechnical engineering, comprising a machine platform, a drill rod placed in the middle of the machine platform, a first correction mechanism for correcting the drill rod shaft part is arranged in the middle of the machine platform, the first correction mechanism comprises two outer clamps symmetrically distributed in the middle of the machine platform, an electric push rod is respectively installed on both sides of the machine platform, the output end of the electric push rod horizontally passes through the machine platform and is connected to the side of the outer clamp, and an inner clamp is distributed inside each of the outer clamps;

[0007] A sensing mechanism for providing power is provided inside the first deviation-correcting mechanism;

[0008] A second deviation correction mechanism for correcting the deviation of the drill bit of the drill rod is provided at the bottom of the first deviation correction mechanism;

[0009] When the machine is drilling into rock and soil, the first deviation correcting mechanism receives the drive of the sensor mechanism to correct the shaft of the machine, and the running first deviation correcting mechanism drives the second deviation correcting mechanism to run synchronously to correct the drill bit of the machine.

[0010] By setting up a machine structure with double correction mechanisms, the two correction mechanisms are clamped on the outer surface of the drill rod, and the drill rod is moved synchronously into the rock and soil. When the drill rod deviates, the first correction mechanism will be driven by the sensor mechanism to squeeze the drill rod in the direction of deviation, and the rod body of the drill rod will be corrected by the reaction force squeezed on the inner wall of the borehole. At the same time, the second correction mechanism will change the weight tendency of the drill bit of the drill rod, thereby driving the drill bit of the drill rod to gradually correct the drilling point as drilling continues, thereby simultaneously correcting the rod body and the drill bit of the tilted drill rod, solving the tilt problem as soon as possible, and greatly improving the correction efficiency of traditional equipment.

[0011] In a preferred embodiment, the first correcting mechanism also includes that each of the inner clamps is provided with a plurality of air paths, and a plurality of correction rings which are sequentially plugged in up and down are slidably installed on the bottom of the inner clamp, and a plurality of air chambers are equidistantly opened inside each of the correction rings, and each of the air chambers is connected through the correction ring and the air paths located on the same center line, and a correction rod is slidably installed inside each of the air chambers, and the correction rod passes through the side of the correction ring.

[0012] By setting up a number of correction ring structures that are plugged into each other, the electric push rod drives the inner and outer clamps to close on the outside of the drill rod, and the drill rod enters the soil synchronously, simulating the stabilizer on the market to make preliminary corrections to the drill rod. At the same time, when the drill rod tilts, the operation of the sensor mechanism is used to drive all the correction rods on the same side of the inclination direction of the drill rod to extend outward synchronously, so as to provide a reverse correction force to the drill rod shaft by squeezing the inner wall of the borehole, thereby straightening the drill rod shaft and ensuring the correction efficiency of the drill rod.

[0013] In a preferred embodiment, the sensing mechanism includes two base plates symmetrically fixed below the inner surface of the machine platform, a number of distance sensor receivers are equidistantly fixed on the side of each base plate, a number of distance sensor transmitters are equidistantly fixed on the top outer surface of each group of correction rings, a multi-way tube is distributed on the side of each inner clamp, and the multi-way tube is respectively connected to a number of the air paths inside the inner clamp, a pump is installed on the top of the machine platform, the output end of the pump is connected to the multi-way tube, and a number of solenoid valves are evenly installed inside the multi-way tube to control each of the air paths.

[0014] By respectively arranging a distance sensor receiver and a distance sensor transmitter between the machine platform and the correction ring, the positional relationship between the distance sensor receiver and the distance sensor transmitter is used to feedback whether the drill rod is deflected. When the drill rod is deflected, the distance between the distance sensor transmitter and the distance sensor receiver will change, and the distance sensor receiver will transmit the received electrical signal to the solenoid valve consistent with the deflection direction of the drill rod, thereby controlling the connection of the air path in the corresponding direction, causing the correction rod to extend outward synchronously, and providing a reverse correction force to the drill rod shaft in a manner of squeezing the inner wall of the borehole, thereby straightening the drill rod shaft, thereby ensuring the correction efficiency of the drill rod and the normal operation of the device.

[0015] In a preferred embodiment, every two correction rings forming a closed loop form a group, and the second correction mechanism includes a locking sleeve symmetrically distributed at the bottom of the lowest group of correction rings, each of the locking sleeves is provided with a plurality of movable cavities, and a counterweight is slidably installed inside each of the movable cavities, and a connecting plate is rotatably installed between each of the counterweights and the correction rod located on the same center line, and the middle part of the connecting plate is rotatably connected to the outer surface of the locking sleeve.

[0016] By additionally providing two locking sleeve structures with a number of counterweights at the bottom of each set of correction rings, the center of gravity is controlled by utilizing the positional relationship between the counterweights and the center of the drill rod. When the drill rod is tilted, the correction rod extends outward and squeezes a number of counterweights on the same side through the connecting plate, causing the counterweights to move in the direction of the drill rod inclination, thereby changing the weight distribution at the drill bit of the drill rod. As the drill rod continues to drill, the movement direction of the drill rod is corrected, thereby further improving the deviation correction capability and efficiency of the equipment.

[0017] In a preferred embodiment, a plurality of auxiliary wheels are rotatably mounted on the inner surface of each correction ring, and the auxiliary wheels are in pressing contact with the outer surface of the drill rod. A plurality of evenly distributed balls are embedded in the inner surface of each locking sleeve, and the balls are in pressing contact with the outer surface of the drill rod.

[0018] By providing an auxiliary wheel rotatably mounted on the inner surface of the correction ring and a ball structure embedded in the inner wall of the clamping sleeve to contact the outer surface of the drill rod, the stability between the drill rod and the correction ring and the clamping sleeve can be ensured, and the friction force received by the drill rod can be reduced, thereby ensuring the reasonable operation of the device.

[0019] In a preferred embodiment, a locking ring is fixed to the upper and lower ends of the locking sleeve respectively, and each of the locking rings located at the top is fixed to the bottom of each group of correction rings respectively, and the outer surface of the drill rod is provided with a locking groove, and the locking ring is engaged with the inside of the locking groove.

[0020] By arranging snap rings at both ends of the snap sleeve and utilizing the snap structure of the snap rings and the snap grooves, it is ensured that when the drill rod moves toward the rock and soil, several inserted correction rings can be stretched synchronously, causing the correction rings to stretch, thereby ensuring the integrity of the operation of the equipment.

[0021] As can be seen from the above, the drill rod deviation correction and clamping device for geotechnical engineering provided by the present invention has the following improvements and advantages compared with the prior art:

[0022] First, by setting up a double correction mechanism inside the machine, a number of mutually connected correction rings are used to drive the inner and outer clamps to close synchronously on the outside of the drill pipe along with the electric push rod, and enter the soil synchronously with the drill pipe, simulating the stabilizer on the market to perform preliminary stability improvement on the drill pipe. At the same time, when the drill pipe is tilted, the operation of the additional distance sensor receiver, distance sensor transmitter and solenoid valve structure is used to control the air path, and drive all the correction rods on the same side of the inclination direction of the drill pipe to extend outward synchronously, so as to provide a reverse correction force to the drill pipe shaft by squeezing the inner wall of the borehole, thereby straightening the drill pipe shaft, and being able to correct the drill pipe immediately to ensure the correction efficiency of the drill pipe.

[0023] Secondly, two additional locking sleeve structures with several counterweights are provided at the bottom of each set of correction rings, and the center of gravity is controlled by utilizing the positional relationship between the counterweights and the center of the drill rod. When the drill rod is tilted, the correction rod extends outward and squeezes several counterweights on the same side through the connecting plate, causing the counterweights to move in the opposite direction of the inclination of the drill rod, thereby changing the weight distribution at the drill bit of the drill rod. As the drill rod continues to drill, the movement direction of the drill rod is corrected, thereby simultaneously correcting the rod body and the drill bit of the drill rod, and further improving the correction capability and efficiency of the traditional device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present invention is a schematic diagram of the overall structure of a drill rod deviation correction and clamping device for geotechnical engineering.

[0025] Figure 2 The present invention is a schematic diagram of the overall working state of a drill rod deviation correction and clamping device for geotechnical engineering.

[0026] Figure 3 A drill rod deviation correction clamping device for geotechnical engineering proposed by the present invention Figure 2 A magnified view of the structure at center.

[0027] Figure 4 This is a schematic structural diagram of a first deviation correction mechanism of a drill rod deviation correction clamping device for geotechnical engineering proposed by the present invention.

[0028] Figure 5The present invention is a cross-sectional view of the inner clamp structure of a drill rod deviation correction clamping device for geotechnical engineering.

[0029] Figure 6 The present invention is a schematic diagram of the correction ring structure of a drill rod correction clamping device for geotechnical engineering.

[0030] Figure 7 The present invention is a cross-sectional view of the correction ring structure of a drill rod correction clamping device for geotechnical engineering.

[0031] Figure 8 The present invention is a cross-sectional view of a clamping sleeve structure of a drill rod deviation correction clamping device for geotechnical engineering proposed by the present invention.

[0032] In the figure: 1. drill rod; 2. machine platform; 3. first deviation-correcting mechanism; 301. outer clamp; 302. electric push rod; 303. inner clamp; 304. air circuit; 305. correction ring; 306. air chamber; 307. correction rod; 308. elastic sheet; 309. auxiliary wheel; 310. spring; 4. sensing mechanism; 401. bottom plate; 402. distance sensor receiver; 403. distance sensor transmitter; 404. multi-way pipe; 405. pump; 406. solenoid valve; 5. second deviation-correcting mechanism; 501. snap-fit ​​sleeve; 502. movable cavity; 503. counterweight; 504. connecting plate; 505. elastic member; 506. snap-fit ​​ring; 507. snap-fit ​​groove; 508. ball. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] A drill rod deviation correction clamping device for geotechnical engineering disclosed by the present invention is mainly used for real-time deviation correction of the drill rod during geotechnical engineering drilling.

[0035] Reference Figures 1 to 8 A drill rod correction clamping device for geotechnical engineering includes a machine platform 2, a drill rod 1 placed in the middle of the machine platform 2, a first correction mechanism 3 for correcting the rod body of the drill rod 1 is arranged in the middle of the machine platform 2, the first correction mechanism 3 includes two outer clamps 301 symmetrically distributed in the middle of the machine platform 2, an electric push rod 302 is installed on both sides of the machine platform 2, the output end of the electric push rod 302 horizontally passes through the machine platform 2 and is connected to the side of the outer clamp 301, and an inner clamp 303 is distributed inside each outer clamp 301;

[0036] The first deviation-correcting mechanism 3 is internally provided with a sensor mechanism 4 for providing power;

[0037] A second deviation correcting mechanism 5 for correcting the deviation of the drill bit of the drill rod 1 is provided at the bottom of the first deviation correcting mechanism 3;

[0038] When the machine 2 drills into the rock, the first correcting mechanism 3 receives the drive of the sensor mechanism 4 to correct the shaft of the machine 2. At the same time, the running first correcting mechanism 3 will drive the second correcting mechanism 5 to run synchronously to correct the drill bit of the machine 2.

[0039] In this embodiment, during the drilling process of the drill rod 1 into the rock and soil, the two electric push rods 302 are started synchronously, and the output end of the electric push rod 302 extends outward and pushes the outer clamp 301 and the inner clamp 303 to move synchronously, so that the two inner clamps 303 are clamped on the outside of the drill rod 1. At the same time, the first deviation correction mechanism 3 and the second deviation correction mechanism 5 move synchronously into the rock and soil along with the drill rod 1. During this process, the first deviation correction mechanism 3 will be synchronously extended, thereby reducing the gap between the drill rod 1 and the inner wall of the borehole, thereby forming a preliminary reinforcement of the drill rod 1. At the same time, when the drill rod 1 is tilted, the sensor mechanism 4 will sense the drill rod 1. The first correcting mechanism 3 will support the drill rod 1 in the direction of its inclination, thereby using the reaction force to push the drill rod 1, causing the shaft of the drill rod 1 to be corrected. At the same time, the second correcting mechanism 5 will run synchronously, driving the drill bit of the drill rod 1 to gradually correct the drilling direction by changing its own gravity tendency; wherein, a plurality of springs 310 are equidistantly fixed between each inner clamp 303 and the outer clamp 301, and when the inner clamp 303 is clamped on the outer surface of the drill rod 1, the spring 310 will contract accordingly, thereby buffering the inner clamp 303.

[0040] In the above scheme, considering that when the drill rod 1 is drilling rock and soil, in order to realize the correction of the shaft part of the drill rod 1, the specific operation is as follows.

[0041] Reference Figures 1 to 7 In a preferred embodiment, the first correcting mechanism 3 also includes a plurality of air paths 304 opened inside each inner clamp 303, a plurality of correction rings 305 which are sequentially plugged in and out of the inner clamp 303 are slidably installed at the bottom, a plurality of air chambers 306 are equidistantly opened inside each correction ring 305, and each air chamber 306 is connected through the correction ring 305 and the air path 304 located on the same center line, and a correction rod 307 is slidably installed inside each air chamber 306, and the correction rod 307 passes through the side of the correction ring 305.

[0042] In this embodiment, during the drilling process of the drill rod 1 into the rock and soil, the two electric push rods 302 are started synchronously, and the output ends of the electric push rods 302 extend outward and push the outer clamps 301 and the inner clamps 303 to move synchronously, so that the two inner clamps 303 are clamped on the outside of the drill rod 1, and the correction rings 305 stacked at the bottom of the inner clamps 303 are synchronously clamped on the outer surface of the drill rod 1. As the drill rod 1 goes deeper into the rock and soil, the moving drill rod 1 will synchronously pull a plurality of correction rings 305, so that the correction rings 305 are extended in sequence, as shown in FIG. Figure 2 As shown; the interconnected correction rings 305 will reduce the gap between the drill pipe 1 and the inner wall of the borehole, thereby forming a preliminary reinforcement of the drill pipe 1; when the drill pipe 1 tilts, the sensor mechanism 4 will receive the induction signal and control the air path 304 inside the inner clamp 303 to be connected in the same direction as the tilt direction of the drill pipe 1 through the controller. At the same time, the air pressure inside the air chamber 306 will push the correction rod 307 to extend outward, and at the same time, it will squeeze the inner wall of the borehole, thereby forming a reverse driving force on the drill pipe 1, causing the shaft of the drill pipe 1 to be adjusted; wherein, an elastic sheet 308 is fixedly connected between each correction rod 307 and the air chamber 306, which is used to push the correction rod 307 to reset and move; and a plurality of auxiliary wheels 309 are rotatably installed on the inner surface of each correction ring 305, and the auxiliary wheels 309 are pressed and contacted with the outer surface of the drill pipe 1 to reduce the friction between the drill pipe 1 and the correction ring 305.

[0043] In the above scheme, considering that when the drill rod 1 is tilted, the first deviation correcting mechanism 3 needs to react in time to correct the drill rod 1, the specific operation is as follows.

[0044] Reference Figures 1 to 7 In a preferred embodiment, the sensing mechanism 4 includes two base plates 401 symmetrically fixed below the inner surface of the machine table 2, a number of distance sensor receivers 402 are evenly fixed on the side of each base plate 401, a number of distance sensor transmitters 403 are evenly fixed on the top outer surface of each group of correction rings 305, a multi-way tube 404 is distributed on the side of each inner fixture 303, and the multi-way tube 404 is respectively connected with a number of gas paths 304 inside the inner fixture 303, a pump 405 is installed on the top of the machine table 2, and the output end of the pump 405 is connected with the multi-way tube 404, and a number of solenoid valves 406 are evenly installed inside the multi-way tube 404 to control each gas path 304.

[0045] In this embodiment, as the drill rod 1 goes deeper into the rock, the moving drill rod 1 will synchronously pull a plurality of correction rings 305, causing the correction rings 305 to extend in sequence. Figure 2As shown; the correction ring 305 stretches, it will drive the distance sensor transmitter 403 gradually close to the distance sensor receiver 402 until the distance sensor transmitter 403 and the distance sensor receiver 402 on the bottom plate 401 are flush, as shown Figure 3 As shown; at the same time, the distance sensor transmitter 403 and the distance sensor receiver 402 are started synchronously; when the drill rod 1 tilts, a group of distance sensor transmitters 403 and distance sensor receivers 402 in the same tilt direction as the drill rod 1 will be synchronously close, and the distance sensor receiver 402 will give feedback in time and transmit the generated electrical signal to the controller, and the controller will control the solenoid valve 406 on the gas path 304 in the same tilt direction as the drill rod 1 to start, release the blockage of the gas path 304, so that the high-pressure gas generated by the pump 405 passes through the multi-way pipe 404 enters the interior of the air circuit 304 which is consistent with the inclination direction of the drill rod 1. When the air circuit 304 is turned on, the air pressure inside the air chamber 306 will push the correction rod 307 to extend outward, and squeeze the inner wall of the borehole while extending, thereby forming a reverse driving force on the drill rod 1, causing the shaft of the drill rod 1 to be adjusted. The distance sensor transmitter 403 and the distance sensor receiver 402 are laser displacement sensors, and the model is "LD22-15V / LD22-15VM12", and the controller model is "C8051F020 single chip microcomputer".

[0046] In the above scheme, considering that when the drill rod 1 is drilling rock and soil, in order to correct the drill bit position of the drill rod 1, the specific operations are as follows.

[0047] Reference Figure 1 to Figure 2 , Figures 4 to 5 , Figure 8 In a preferred embodiment, the second correcting mechanism 5 includes a locking sleeve 501 symmetrically distributed at the bottom of the lowest group of correction rings 305, and each locking sleeve 501 is provided with a plurality of movable cavities 502, and a counterweight 503 is slidably installed inside each movable cavity 502, and each counterweight 503 is rotatably installed with a connecting plate 504 between it and the correction rod 307 located on the same center line, and the middle part of the connecting plate 504 is rotatably connected to the outer surface of the locking sleeve 501.

[0048] In this embodiment: when the drill rod 1 is tilted, the correction rod 307 extending outward will form a reverse driving force on the drill rod 1, causing the shaft of the drill rod 1 to be adjusted. At the same time, the correction rod 307 extending outward will synchronously push the connected counterweight 503 through the connecting plate 504, causing the counterweight 503 to move along the internal active cavity 502 of the engaging sleeve 501, and move in the opposite direction of the tilt of the drill rod 1, thereby changing the center of gravity direction of the engaging sleeve 501 and the drill bit of the drill rod 1, and gradually correcting the drilling point of the drill rod 1; wherein, an elastic member 505 is fixedly connected between each counterweight 503 and the active cavity 502, which is used to push the counterweight 503 to reset and move; the inner surface of each engaging sleeve 501 is embedded with a plurality of evenly distributed balls 508, and the balls 508 are squeezed and contacted with the outer surface of the drill rod 1 to reduce the friction between the engaging sleeve 501 and the drill rod 1.

[0049] In the above scheme, in order to maintain a stable connection between the first deviation correcting mechanism 3 and the second deviation correcting mechanism 5 and the drill rod 1, the specific operation is as follows.

[0050] Reference Figure 1 and Figure 8 In a preferred embodiment, a locking ring 506 is fixed to the upper and lower ends of the locking sleeve 501, and each locking ring 506 located at the top is fixed to the bottom of each group of correction rings 305, and a locking groove 507 is provided on the outer surface of the drill rod 1, and the locking ring 506 is engaged with the inside of the locking groove 507.

[0051] In this embodiment, when the two inner clamps 303 are closed, the two engaging sleeves 501 will be synchronously engaged with the outer surface of the drill pipe 1. At this time, the engaging ring 506 at the end of the engaging sleeve 501 will be synchronously engaged with the inside of the engaging groove 507, thereby enhancing stability.

[0052] Working principle: When the drill rod 1 is drilling into the rock and soil, the two electric push rods 302 are started synchronously, and the output end of the electric push rod 302 extends outward and pushes the outer clamp 301 and the inner clamp 303 to move synchronously, so that the two inner clamps 303 are clamped on the outside of the drill rod 1, and at the same time, the correction rings 305 stacked at the bottom of the inner clamp 303 are synchronously clamped on the outer surface of the drill rod 1. As the drill rod 1 goes deeper into the rock and soil, the moving drill rod 1 will synchronously pull a plurality of correction rings 305, causing the correction rings 305 to extend in sequence, such as Figure 2 As shown; the interconnected correction rings 305 will reduce the gap between the drill pipe 1 and the inner wall of the borehole, thereby forming a preliminary reinforcement of the drill pipe 1, and the correction ring 305 will drive the distance sensor transmitter 403 to gradually approach the distance sensor receiver 402 while extending, until the distance sensor transmitter 403 and the distance sensor receiver 402 on the bottom plate 401 are flush, as shown Figure 3As shown; when the drill rod 1 tilts, a set of distance sensor transmitters 403 and distance sensor receivers 402 in the same tilt direction as the drill rod 1 will be synchronously close, and the distance sensor receiver 402 will give feedback in time and transmit the generated electrical signal to the controller, and the controller will control the solenoid valve 406 on the gas path 304 in the same tilt direction as the drill rod 1 to start, release the blockage of the gas path 304, so that the high-pressure gas generated by the pump 405 enters the gas path 304 in the same tilt direction as the drill rod 1 through the multi-way pipe 404, and the gas path 304 is conductive At the same time, the air pressure inside the air chamber 306 will push the correction rod 307 to extend outward, and while extending, it will squeeze the inner wall of the borehole, thereby forming a reverse driving force on the drill pipe 1, causing the shaft of the drill pipe 1 to be adjusted; and the correction rod 307 extending outward will synchronously push the connected counterweight 503 through the connecting plate 504, causing the counterweight 503 to move along the internal active cavity 502 of the locking sleeve 501, and move in the opposite direction of the inclination of the drill pipe 1, thereby changing the center of gravity direction of the locking sleeve 501 and the drill bit of the drill pipe 1, and gradually correcting the drilling point of the drill pipe 1.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drill rod correction and clamping device for geotechnical engineering, comprising a machine platform (2), a drill rod (1) placed in the middle of the machine platform (2), characterized in that: A first deviation-correcting mechanism (3) for correcting the deviation of the shaft of the drill rod (1) is arranged in the middle of the machine platform (2), the first deviation-correcting mechanism (3) comprising two outer clamps (301) symmetrically distributed in the middle of the machine platform (2), an electric push rod (302) is respectively installed on both sides of the machine platform (2), the output end of the electric push rod (302) horizontally passes through the machine platform (2) and is connected to the side of the outer clamp (301), an inner clamp (303) is distributed inside each of the outer clamps (301), and the first deviation-correcting mechanism (3) further comprises each of the inner clamps A plurality of air paths (304) are provided inside the inner clamp (303), a plurality of correction rings (305) are slidably installed at the bottom of the inner clamp (303) and are plugged in up and down in sequence, a plurality of air chambers (306) are equidistantly provided inside each of the correction rings (305), and each of the air chambers (306) is connected through the correction ring (305) and the air path (304) located on the same center line, a correction rod (307) is slidably installed inside each of the air chambers (306), and the correction rod (307) passes through the side of the correction ring (305); A sensing mechanism (4) for providing power is arranged inside the first deviation-correcting mechanism (3); A second deviation correcting mechanism (5) for correcting the deviation of the drill bit of the drill rod (1) is arranged at the bottom of the first deviation correcting mechanism (3), and each two correction rings (305) forming a closed loop form a group. The second deviation correcting mechanism (5) comprises a clamping sleeve (501) symmetrically distributed at the bottom of the lowest group of correction rings (305), and each of the clamping sleeves (501) is provided with a plurality of movable cavities (502), and each of the movable cavities (502) is slidably mounted with a counterweight (503), and each of the counterweights (503) is rotatably mounted with a connecting plate (504) between the counterweight (503) and the correction rod (307) located on the same center line, and the middle part of the connecting plate (504) is rotatably connected to the outer surface of the clamping sleeve (501); When the machine (2) is drilling into rock or soil, the first deviation correcting mechanism (3) receives the drive of the sensor mechanism (4) to correct the deviation of the shaft of the machine (2), and the operation of the first deviation correcting mechanism (3) drives the second deviation correcting mechanism (5) to operate synchronously to correct the deviation of the drill head of the machine (2); During the process of the drill rod (1) drilling into the rock and soil, the two electric push rods (302) are started synchronously, the output ends of the electric push rods (302) extend outward and push the outer clamp (301) and the inner clamp (303) to move synchronously, so that the two inner clamps (303) are clamped on the outside of the drill rod (1), and at the same time, the correction rings (305) stacked at the bottom of the inner clamps (303) are synchronously clamped on the outer surface of the drill rod (1), and as the drill rod (1) goes deeper into the rock and soil, the moving drill rod (1) will synchronously pull a plurality of correction rings (305), so that the correction rings (305) are extended in sequence; The correction rod (307) extending outwards will synchronously push the connected counterweight (503) through the connecting plate (504), causing the counterweight (503) to move along the inner movable cavity (502) of the engaging sleeve (501) and move in the opposite direction of the inclination of the drill rod (1), thereby changing the center of gravity direction of the engaging sleeve (501) and the drill bit of the drill rod (1), and gradually correcting the drilling point of the drill rod (1).

2. A drill rod deviation correction and clamping device for geotechnical engineering according to claim 1, characterized in that: The sensing mechanism (4) comprises two bottom plates (401) symmetrically fixed below the inner surface of the machine platform (2), a plurality of distance sensing receivers (402) are evenly fixed on the side of each bottom plate (401), a plurality of distance sensing transmitters (403) are evenly fixed on the top outer surface of each group of correction rings (305), a multi-way tube (404) is distributed on the side of each inner fixture (303), the multi-way tube (404) is respectively connected to a plurality of gas paths (304) inside the inner fixture (303), a pump (405) is installed on the top of the machine platform (2), the output end of the pump (405) is connected to the multi-way tube (404), and a plurality of solenoid valves (406) are evenly installed inside the multi-way tube (404) to control each gas path (304).

3. The drill rod deviation correction and clamping device for geotechnical engineering according to claim 1, characterized in that: An elastic sheet (308) is fixedly connected between each correction rod (307) and the gas chamber (306).

4. The drill rod deviation correction and clamping device for geotechnical engineering according to claim 1, characterized in that: A plurality of auxiliary wheels (309) are rotatably mounted on the inner surface of each correction ring (305), and the auxiliary wheels (309) are pressed and contacted with the outer surface of the drill rod (1).

5. The drill rod deviation correction and clamping device for geotechnical engineering according to claim 1, characterized in that: An elastic member (505) is fixedly connected between each of the counterweight members (503) and the movable chamber (502).

6. The drill rod deviation correction and clamping device for geotechnical engineering according to claim 1, characterized in that: A locking ring (506) is fixed to each of the upper and lower ends of the locking sleeve (501), and each of the locking rings (506) located at the top is fixed to the bottom of each group of the correction rings (305). The outer surface of the drill rod (1) is provided with a locking groove (507), and the locking ring (506) is locked inside the locking groove (507).

7. The drill rod deviation correction and clamping device for geotechnical engineering according to claim 1, characterized in that: A plurality of springs (310) are fixed at equal distances between each inner clamp (303) and the outer clamp (301).

8. The drill rod deviation correction and clamping device for geotechnical engineering according to claim 1, characterized in that: A plurality of evenly distributed balls (508) are embedded in the inner surface of each of the locking sleeves (501), and the balls (508) are pressed and contacted with the outer surface of the drill rod (1).

Images