CN112814580B - Concrete core machine drilling rod for road detection - Google Patents
Concrete core machine drilling rod for road detection Download PDFInfo
- Publication number
- CN112814580B CN112814580B CN202110016329.7A CN202110016329A CN112814580B CN 112814580 B CN112814580 B CN 112814580B CN 202110016329 A CN202110016329 A CN 202110016329A CN 112814580 B CN112814580 B CN 112814580B
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- wall
- ring
- drill bit
- connecting device
- block
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- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000005553 drilling Methods 0.000 title claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000013016 damping Methods 0.000 claims abstract description 27
- 230000035939 shock Effects 0.000 claims description 22
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000087 stabilizing 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
-
- 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
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
- E21B17/076—Telescoping joints for varying drill string lengths; Shock absorbers between rod or pipe and drill bit
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1042—Elastomer protector or centering means
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1085—Wear protectors; Blast joints; Hard facing
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a concrete core remover drill rod for road detection, which relates to the technical field of road detection and comprises a drill bit, a drill rod, a connecting device and a driving connecting shaft, wherein the top of the drill bit is in threaded connection with the bottom of the drill rod, the outer wall of the drill rod is connected with the inner wall of the connecting device in an embedded manner, the top of the connecting device is fixedly connected with the bottom of the driving connecting shaft, the outer wall of the drill rod is clamped with a shaft sleeve, and the outer wall of the shaft sleeve is uniformly provided with limiting grooves. According to the invention, through the matching of the damping plate and the damping device, the damping effect of the whole structure is effectively reduced, the serious abrasion between parts in the long-time working process is avoided, the surface of the drill bit can be cooled by the water storage cavity arranged in the drill bit during working, the deformation is prevented, the construction length of the drill rod can be adjusted by adopting the matching of the sliding block and the connecting ring, and the problem of poor thickness sampling effect of different roads is solved.
Description
Technical Field
The invention relates to the technical field of road detection, in particular to a concrete core extractor drill rod for road detection.
Background
In road detection, to prevent the condition of material loss caused by construction of a road, the road needs to be detected in a correlated way after the road is finished, while some key data need to be detected by sampling the road, and meanwhile, in order to measure the thickness and the strength of a concrete road, the road needs to be detected by drilling, so that a drilling coring machine is derived to be applied to the road detection.
The main part for road detection is a drill rod, the drill rod is of an integrated structure with a grinding head at the bottom, the diameters of the periphery and the inside are approximately the same, and the road drill rod is generally made of a geological special alloy steel pipe with high strength and bending resistance.
The drill bit is contacted with the road when rotating, the temperature on the surface of the drill bit is easy to damage the drill bit, and the impact force cannot be reduced when the drill bit is contacted with the road surface, so that the abrasion of the joint of the drill bit and the drill rod is serious, the drill rod can generate larger impact force when being contacted with the road surface, the abrasion of the drill rod and other parts is easy to be caused, the applicability of the drill rod of the concrete coring machine for road detection is poor, and therefore, structural innovation is needed to solve the specific problem.
Disclosure of Invention
The invention aims to provide a concrete core drill rod for road detection, which aims to achieve the effect of cooling a drill bit and solve the problem that the drill bit is damaged by temperature caused by friction between the surface of the drill bit and an object; another purpose is to solve the problem that impact force cannot be reduced between the drill bit and the drill rod so as to reduce abrasion effect between the drill rod and the drill bit, and another purpose is to protect the drill rod, so that the service life is prolonged, and the problem that abrasion between the drill rod and other parts is serious due to overlarge shaking amplitude while the drill rod rotates is solved.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a concrete core machine drilling rod for road detection, includes drill bit, drilling rod, connecting device and drive connecting axle, the top of drill bit and the bottom threaded connection of drilling rod, the outer wall of drilling rod is connected with connecting device's inner wall embedding, connecting device's top and the bottom fixed connection of drive connecting axle, the outer wall joint of drilling rod has the axle sleeve, the spacing groove has evenly been seted up to the outer wall of axle sleeve.
The technical scheme of the invention is further improved as follows: the inner wall of the limit groove is provided with a damping device, the inner wall of the damping device is provided with a trapezoid block, a buffer block, a concave block I, a concave block II and a connecting pipe, the outer walls of the trapezoid block and the buffer block are in sliding connection with the inner wall of the damping device, the buffer block is arranged above the trapezoid block, the left side of the trapezoid block is in sliding connection with the right side of the concave block II, and the left side of the buffer block is in sliding connection with the right side of the concave block I.
The technical scheme of the invention is further improved as follows: the top of connecting pipe and the bottom sealing connection of concave type piece one, the bottom of connecting pipe and the top sealing connection of concave type piece two, the inside of concave type piece two is provided with spring two and rubber ring, the right-hand member of spring two welds with the left side of trapezoidal piece, the outer wall of rubber ring and the inner wall sliding connection of concave type piece two.
The technical scheme of the invention is further improved as follows: the outer wall of axle sleeve is provided with the fixed ring of position, the through-hole has been seted up to the inner wall of fixed ring of position, and the inside wall sliding connection of through-hole has the snap ring, the bottom and the spacing tank bottom overlap joint of snap ring, the one end joint of snap ring has the go-between.
The technical scheme of the invention is further improved as follows: the inside of connecting device is provided with the slider, the bottom and the inner wall fixed connection of connecting device of slider, connecting device's outer wall swing joint has the pretightning ring, and connecting device's outer wall has seted up the locating hole, pretightning ring passes through the locating hole and the connecting device threaded connection that set up, connecting ring passes through the slider and connecting device sliding connection that set up.
The technical scheme of the invention is further improved as follows: the inner wall of drill bit is provided with the retaining cavity, the anti-backflow groove has been seted up to the inner wall left and right sides of retaining cavity, the bottom through connection of retaining cavity has the outlet pipe, and the outlet pipe is located the left and right sides symmetry setting of retaining cavity, the water injection hole has been seted up to the left and right sides of drill bit, the inside wall sealing connection of water injection hole has the water injection pipe, and the one end and the retaining cavity outer wall through connection of water injection pipe, the top threaded connection of drill bit has the connecting plate, the top fixedly connected with shock attenuation board of connecting plate, the connecting plate is located the upper and lower both ends symmetry setting of shock attenuation board, the connecting plate and the drill bit fixed connection of drilling rod through setting up.
The technical scheme of the invention is further improved as follows: the inner wall of shock attenuation board is provided with concave board, first and the supporting shoe of spring, the inner wall top of concave board welds with the top of first spring, and the bottom of first spring and the top welding of supporting shoe, the draw-in groove has been seted up to the inner wall of supporting shoe, the draw-in groove is located the left and right sides symmetry setting of supporting shoe, and the inside wall and the outer wall sliding connection of concave board of draw-in groove, the top of concave board welds with the inner wall top of shock attenuation board, the bottom of supporting shoe welds with the inner wall bottom of shock attenuation board.
The technical scheme of the invention is further improved as follows: the inside wall of spacing groove and the outer wall sliding connection of snap ring, damping device's outer wall and the outer wall overlap joint of snap ring, and damping device is located the left and right sides both ends symmetry setting of spacing groove.
By adopting the technical scheme, compared with the prior art, the invention has the following technical progress:
1. the invention provides a concrete core drill rod for road detection, which is characterized in that through the combination of a limit groove and a snap ring, when the snap ring is connected with the limit groove, the positions of a drill bit and the drill rod can be fixed, poor stability in operation is prevented, and a damping device arranged in the limit groove can reduce the large-amplitude shaking of the snap ring in the limit groove, so that the abrasion between the snap ring and the limit groove is reduced, and the stability between the drill rod and a connecting device is improved.
2. The invention provides a concrete core drill rod for road detection, which is convenient for a connecting ring to move in a connecting device by adopting the combination arrangement of a sliding block and the connecting ring, so that the construction length of the drill rod can be adjusted, and the position of the connecting device when the length of the drill rod is adjusted can be fixed by a pre-tightening ring arranged on the surface of the connecting device, so that the drill rod is more firmly connected with the connecting device.
3. The invention provides a concrete core drill rod for road detection, which can store a certain amount of water through a water injection hole by a water storage cavity arranged in a drill bit, and flow out the water through a water outlet pipe, so that the temperature of the surface of the drill bit can be reduced when the drill bit works, and the water in the water storage cavity is affected by centrifugal force to cause poor outflow of the water under the condition that a reverse flow prevention groove in the water storage cavity can reduce the high-speed rotation of the drill bit, so that the reduction effect of the surface temperature of the drill bit is affected poorly.
4. The invention provides a concrete core drill rod for road detection, which can reduce the overlarge up-down movement frequency of a drill bit during rotation through the damping plate arranged at the joint of the drill bit and the drill rod, and the generated impact force is directly transmitted to the drill rod to cause poor stabilizing effect.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a bushing structure according to the present invention;
FIG. 3 is a schematic view of a connecting device according to the present invention;
FIG. 4 is a schematic view of the inside of the drill bit structure of the present invention;
FIG. 5 is a schematic view of a shock absorbing device according to the present invention;
FIG. 6 is a schematic view of a shock absorber plate structure according to the present invention.
In the figure: 1. a drill bit; 11. a connecting plate; 12. a water storage chamber; 13. an anti-backflow groove; 14. a water injection hole; 15. a water outlet pipe; 16. a shock absorbing plate; 161. a concave plate; 162. a first spring; 163. a support block; 164. a clamping groove; 2. a drill rod; 21. a shaft sleeve; 22. a limit groove; 23. a damping device; 231. a trapezoid block; 232. a buffer block; 233. concave block I; 234. concave block II; 235. a second spring; 236. a rubber ring; 237. a connecting pipe; 3. a connecting device; 31. a position fixing ring; 32. a connecting ring; 33. a clasp; 34. a pre-tightening ring; 35. a slide block; 36. positioning holes; 4. the connecting shaft is driven.
Detailed Description
The invention is further illustrated by the following examples:
example 1
As shown in fig. 1-6, the invention provides a concrete core drill rod for road detection, which comprises a drill bit 1, a drill rod 2, a connecting device 3 and a driving connecting shaft 4, wherein the top of the drill bit 1 is in threaded connection with the bottom of the drill rod 2, the outer wall of the drill rod 2 is in embedded connection with the inner wall of the connecting device 3, the top of the connecting device 3 is fixedly connected with the bottom of the driving connecting shaft 4, the outer wall of the drill rod 2 is clamped with a shaft sleeve 21, and the outer wall of the shaft sleeve 21 is uniformly provided with limiting grooves 22.
In this embodiment, the drive connecting shaft 4 is the effect that the drive source and the connecting device 3 are connected to adopt the connecting rod to connect it between axle sleeve 21 and the drilling rod 2, be convenient for change drilling rod 2, and its bottom of the spacing groove 22 of seting up can overlap joint with drilling rod 2, restrict the travel distance of drilling rod 2 in axle sleeve 21 inside, thereby be convenient for use the connecting rod to connect, and the setting of spacing groove 22 has avoided drilling rod 2 and drill bit 1 too big so that connecting device 3 and drive connecting shaft 4's connectivity in order to increase the fixity between drilling rod 2 and the connecting device 3 at during operation vibrations range.
As shown in fig. 3, in this embodiment, the inside of connecting device 3 is provided with slider 35, the bottom of slider 35 and the inner wall fixed connection of connecting device 3, slider 35 that sets up is convenient for go on sliding in connecting device 3 inside by connecting ring 32, connecting device 3's outer wall swing joint has pretightning ring 34, and connecting device 3's outer wall has seted up locating hole 36, pretightning ring 34 is through locating hole 36 and connecting device 3 threaded connection who sets up, the bolt hole with locating hole 36 matched with is offered equally to pretightning ring 34 and connecting ring 32 surface, can be connected pretightning ring 34 through the bolt, connecting ring 32 and connecting device 3 between, connecting ring 32 and connecting device 3 through slider 35 and connecting device 3 sliding connection that set up, so be convenient for connecting ring 32 and adjust in connecting device 3 inside distance, thereby can lengthen the length of drilling rod 2, be convenient for detect the road surface, the outer wall of axle sleeve 21 is provided with fixed ring 31, the through-hole's inner wall has been seted up, and the inside wall sliding connection of through-hole has snap ring 33, the fixed ring 31 of position that sets up is convenient to limit the position of snap ring 33, make it can not produce the difference between the snap ring 33 and the groove is close to the snap ring 33 with the snap ring 32, the one end can be made to the snap ring 32 through the groove with the bump 33, the bump is connected to the snap ring is made to the snap ring 32, the one end of the snap ring is connected with the snap ring 32 through the groove, the bump is made to be connected with the snap ring 33, the snap ring is 32, can be connected with the snap ring 32, can be connected with the one end through the snap ring 32, and can be welded to the lug groove, and can be connected with the snap ring 32, and can be welded, and can be used in the inside, and can be used to the inside, and can be moved.
Example 2
As shown in fig. 5, on the basis of embodiment 1, the present invention provides a technical solution: the inner wall of the limit groove 22 is provided with a damping device 23, the inner wall of the limit groove 22 is in sliding connection with the outer wall of the snap ring 33, the outer wall of the damping device 23 is overlapped with the outer wall of the snap ring 33, the damping device 23 is symmetrically arranged at the left end and the right end of the limit groove 22, the inner wall of the damping device 23 is provided with a trapezoid block 231, a buffer block 232, a concave block I233, a concave block II 234 and a connecting pipe 237, the outer walls of the trapezoid block 231 and the buffer block 232 are in sliding connection with the inner wall of the damping device 23, the buffer block 232 is arranged above the trapezoid block 231, due to the structure of the trapezoid block 231 and the structure of the buffer block 232 being different, the trapezoid block 231 is touched and extruded when the snap ring 33 moves downwards, the second spring 235 is compressed when the trapezoid block 231 moves leftwards, the rubber ring 236 compresses the air pressure in the concave block II 234, and air flows into the concave block I233 through the connecting pipe 237, because the air pressure in the inside of the concave block II 234 is larger than the air pressure in the inside of the concave block I233, the rubber ring 236 in the inside of the concave block I233 moves to the other side, so that the buffer block 232 moves to the right side, so that the buffer block 232 is contacted with the clamping ring 33, the moving distance of the clamping ring 33 in the inside of the limit groove 22 is reduced, abrasion between the clamping ring 33 and the limit groove 22 is avoided, the buffering effect of the drill rod 2 in the inside of the connecting device 3 is improved, the left side of the trapezoid block 231 is slidingly connected with the right side of the concave block II 234, the left side of the buffer block 232 is slidingly connected with the right side of the concave block I233, the top of the connecting pipe 237 is hermetically connected with the bottom of the concave block I233, the bottom of the connecting pipe 237 is hermetically connected with the top of the concave block II 234, the inside of the concave block II 234 is provided with the spring II 235 and the rubber ring 236, the right end of the spring II 235 is welded with the left side of the trapezoid block 231, the structure in concave block one 233 is the same as that of concave block two 234, when the snap ring 33 moves upwards for a certain distance, the air pressure in concave block one 233 is greater than that in concave block 234, so that trapezoidal block 231 gradually moves to the right side, and the effect of damping the snap ring 33 can be achieved again when the next time the snap ring 33 slides into the limiting groove 22, and the outer wall of the rubber ring 236 is in sliding connection with the inner wall of concave block two 234.
Example 3
As shown in fig. 4 and 6, on the basis of embodiment 1 and embodiment 2, the present invention provides a technical solution: the inner wall of the drill bit 1 is provided with a water storage cavity 12, the water storage cavity 12 is convenient for storing quantitative water, the surface of the drill bit 1 can be cooled, the left side and the right side of the inner wall of the water storage cavity 12 are provided with anti-backflow grooves 13, the water in the water storage cavity 12 generates stronger centrifugal force under the condition that the drill bit 1 rotates at high speed, the water fluidity is poorer, the anti-backflow grooves 13 can reduce certain centrifugal force, the water can flow out to the surface of the drill bit 1 through a water outlet pipe 15 for cooling, the bottom of the water storage cavity 12 is in through connection with a water outlet pipe 15, the water outlet pipe 15 is arranged on the left side and the right side of the water storage cavity 12 in a symmetrical manner, the left side and the right side of the drill bit 1 are provided with water injection holes 14, the inner side walls of the water injection holes 14 are in sealed connection with water injection pipes, one ends of the water injection pipes are in through connection with the outer wall of the water storage cavity 12, the water injection hole 14 needs to be connected by bolts and can prevent water from seeping out, the top thread of the drill bit 1 is connected with the connecting plate 11, the top of the connecting plate 11 is fixedly connected with the shock absorbing plate 16, the connecting plate 11 is symmetrically arranged at the upper end and the lower end of the shock absorbing plate 16, the drill rod 2 is fixedly connected with the drill bit 1 through the arranged connecting plate 11, the joint with the drill rod 2 can be worn due to stronger impact force generated when the drill bit 1 rotates, the arranged shock absorbing plate 16 is provided with the concave plate 161, the first spring 162 and the supporting block 163 for reducing the wear of the joint between the drill bit 1 and the drill rod 2, the top of the inner wall of the concave plate 161 is welded with the top of the first spring 162, the bottom of the first spring 162 is welded with the top of the supporting block 163, when the shock absorbing plate 16 is stressed, the elastic potential energy of the first spring 162 in the interior can reduce the impact force from the drill bit 1, thereby reduce in part impact force conveys drilling rod 2, through the cooperation of shock attenuation board 16 and damping device 23, the effectual shock attenuation effect that reduces overall structure is poor, avoided wearing and tearing between the part in long-time course of working seriously, draw-in groove 164 has been seted up to the inner wall of supporting shoe 163, draw-in groove 164 is located the left and right sides symmetry setting of supporting shoe 163, and the inside wall of draw-in groove 164 and the outer wall sliding connection of concave plate 161, the draw-in groove 164 of setting is in order to can not take place the skew to concave plate 161 in the downshifting position, prevent that shock attenuation board 16 from taking place to warp, the top of concave plate 161 and the inner wall top welding of shock attenuation board 16, the bottom of supporting shoe 163 and the inner wall bottom welding of shock attenuation board 16.
The working principle of the concrete core drill rod for road detection is as follows:
as shown in fig. 1-6, the present invention connects the driving connection shaft 4 with the driving source, and drives the whole structure to rotate by the driving source, when the drill bit 1 works under the condition of rotation, the generated impact force firstly passes through the damping plate 16 to perform the first damping, when the drill rod 2 rotates, the generated impact force passes through the cooperation of the limit groove 22 and the damping device 23 to perform the damping on the clamping ring 33, meanwhile, the stability of the connection device 3 is improved, and the water storage chamber 12 in the interior of the drill bit 1 flows out the water in the interior to the surface of the drill bit 1 through the water outlet pipe 15 during the rotation of the drill bit 1, so as to reduce the temperature of the surface of the drill bit 1.
The foregoing invention has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (3)
1. The utility model provides a concrete core machine drilling rod for road detection, includes drill bit (1), drilling rod (2), connecting device (3) and drive connecting axle (4), its characterized in that: the top of the drill bit (1) is in threaded connection with the bottom of the drill rod (2), the outer wall of the drill rod (2) is connected with the inner wall of the connecting device (3) in an embedded mode, the top of the connecting device (3) is fixedly connected with the bottom of the driving connecting shaft (4), the outer wall of the drill rod (2) is clamped with a shaft sleeve (21), and limiting grooves (22) are uniformly formed in the outer wall of the shaft sleeve (21);
the inside of connecting device (3) is provided with slider (35), the bottom of slider (35) and the inner wall fixed connection of connecting device (3), the outer wall swing joint of connecting device (3) has pretightning ring (34), and locating hole (36) have been seted up to the outer wall of connecting device (3), pretightning ring (34) are through locating hole (36) and connecting device (3) threaded connection that set up, connecting ring (32) are through slider (35) and connecting device (3) sliding connection that set up, the outer wall of axle sleeve (21) is provided with fixed ring (31) in position, the through-hole has been seted up to the inner wall of fixed ring (31) in position, and the inside wall sliding connection of through-hole has snap ring (33), the bottom of snap ring (33) and spacing groove (22) bottom overlap joint, the one end joint of snap ring (33) has connecting ring (32).
The inner wall of the limit groove (22) is provided with a damping device (23), the inner wall of the limit groove (22) is in sliding connection with the outer wall of the clamping ring (33), the outer wall of the damping device (23) is in lap joint with the outer wall of the clamping ring (33), the damping device (23) is symmetrically arranged at the left end and the right end of the limit groove (22), the inner wall of the damping device (23) is provided with a trapezoid block (231), a buffer block (232), a concave block (233), a concave block two (234) and a connecting pipe (237), the outer wall of the trapezoid block (231) and the buffer block (232) are in sliding connection with the inner wall of the damping device (23), the buffer block (232) is arranged above the trapezoid block (231), the left side of the trapezoid block (231) is in sliding connection with the right side of the concave block two (234), the top of the connecting pipe (237) is in sealing connection with the bottom of the concave block one (233), the bottom of the connecting pipe (237) is in sealing connection with the bottom of the concave block two (234), the bottom of the concave block two (234) is in sealing ring (235) and the top of the concave block two (234) is in sealing ring (235), the outer wall of the rubber ring (236) is in sliding connection with the inner wall of the concave block II (234).
2. A concrete core drill pipe for road detection as recited in claim 1, wherein: the inner wall of drill bit (1) is provided with retaining cavity (12), prevent counter-current groove (13) have been seted up to the inner wall left and right sides of retaining cavity (12), the bottom through connection of retaining cavity (12) has outlet pipe (15), and outlet pipe (15) are located the left and right sides symmetry setting of retaining cavity (12), water injection hole (14) have been seted up to the left and right sides of drill bit (1), the inside wall sealing connection of water injection hole (14) has the water injection pipe, and the one end and the outer wall through connection of retaining cavity (12) of water injection pipe, the top threaded connection of drill bit (1) has connecting plate (11), the top fixedly connected with shock attenuation board (16) of connecting plate (11), connecting plate (11) are located the upper and lower both ends symmetry setting of shock attenuation board (16), connecting plate (11) and drill bit (1) fixed connection are passed through in drilling rod (2).
3. A concrete core drill pipe for road detection as recited in claim 2, wherein: the inner wall of shock attenuation board (16) is provided with concave plate (161), first (162) of spring and supporting shoe (163), the top welding of the inner wall top of concave plate (161) and the first (162) of spring, and the bottom of first (162) of spring and the top welding of supporting shoe (163), draw-in groove (164) have been seted up to the inner wall of supporting shoe (163), draw-in groove (164) are located the left and right sides symmetry setting of supporting shoe (163), and the inside wall of draw-in groove (164) and the outer wall sliding connection of concave plate (161), the top of concave plate (161) and the inner wall top welding of shock attenuation board (16), the bottom of supporting shoe (163) and the inner wall bottom welding of shock attenuation board (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110016329.7A CN112814580B (en) | 2021-01-07 | 2021-01-07 | Concrete core machine drilling rod for road detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110016329.7A CN112814580B (en) | 2021-01-07 | 2021-01-07 | Concrete core machine drilling rod for road detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112814580A CN112814580A (en) | 2021-05-18 |
| CN112814580B true CN112814580B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110016329.7A Active CN112814580B (en) | 2021-01-07 | 2021-01-07 | Concrete core machine drilling rod for road detection |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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