CN114075927A - Submersible multifunctional automatic digital exploration machine - Google Patents

Submersible multifunctional automatic digital exploration machine Download PDF

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Publication number
CN114075927A
CN114075927A CN202010758461.0A CN202010758461A CN114075927A CN 114075927 A CN114075927 A CN 114075927A CN 202010758461 A CN202010758461 A CN 202010758461A CN 114075927 A CN114075927 A CN 114075927A
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CN
China
Prior art keywords
oil cylinder
wall
welded
clamping
guide
Prior art date
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Pending
Application number
CN202010758461.0A
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Chinese (zh)
Inventor
孔宪海
曹在文
刘志浩
邴常远
王伟胜
管毓辉
李卿旭
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Three Dimensional Geotechnical Engineering Co ltd Yantai
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Three Dimensional Geotechnical Engineering Co ltd Yantai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Three Dimensional Geotechnical Engineering Co ltd Yantai filed Critical Three Dimensional Geotechnical Engineering Co ltd Yantai
Priority to CN202010758461.0A priority Critical patent/CN114075927A/en
Publication of CN114075927A publication Critical patent/CN114075927A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/12Underwater drilling
    • E21B7/136Underwater drilling from non-buoyant support
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1078Stabilisers or centralisers for casing, tubing or drill pipes
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/002Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells

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  • 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)
  • Geophysics (AREA)
  • Earth Drilling (AREA)

Abstract

The invention discloses a submersible multifunctional automatic digital exploration machine which comprises a guide device, wherein a caliper assembly and a rotary device are welded on the upper portion of the guide device, a clamping oil cylinder is installed in the caliper assembly, a piston top of the clamping oil cylinder is sleeved with a buffer spring, and the clamping oil cylinder pushes a clamping jaw fork drill rod. The drilling machine device is leveled by adjusting the balance oil cylinder, the balance of the device is effectively kept, the working efficiency is improved, the verticality of the probe rod probe and the drill rod and drilling tool is ensured, the device can be protected from being damaged, the service life of the device is prolonged, when hard layers such as cobbles and stones need to be drilled in a rotary mode, the drill rod and the drilling tool are replaced, the drilling tool is put into the drilling tool in a probe rod mode, the clamping oil cylinder is retracted at the moment, the vertical oil cylinder is lifted to the top, the hollow oil cylinder is started to press the clamp block downwards, the drill rod is clamped, the driving motor is started, the vertical oil cylinder falls at a low speed, the descending footage speed is accelerated, the hydraulic pressure meter descends, the cobbles and the stone layers are considered to pass, the problem that the cobbles and stones are difficult to pass through the attack in static sounding is solved, and the working efficiency is improved.

Description

Submersible multifunctional automatic digital exploration machine
Technical Field
The invention belongs to the technical field of underwater stratum drilling, and particularly relates to a submersible multifunctional automatic digital exploration machine.
Background
At present, in the aspect of offshore or river underwater exploration and sampling at home, construction is carried out only by utilizing a barge on a shallow seabed or a shallow lake and lifting a platform to set a casing, and once the construction is carried out on the seabed with the water depth of more than 30 meters and the casing setting construction in the deep lake, normal construction can not be ensured due to the action of water flow and the like; and because of the shortage of equipment in the fields of domestic underwater ultra-deep engineering investigation and static sounding, particularly when the underwater stratum meets a hard covering layer and a gravel layer, the existing static sounding equipment cannot penetrate the layer.
Therefore, a novel underwater drilling device capable of penetrating through hard rock, soil and gravel layers is urgently needed, and the existing device can hardly meet the hard rock, soil and gravel layers.
Disclosure of Invention
The invention aims to provide a submersible multifunctional automatic digital exploration machine, which aims to solve the problems that the prior submersible multifunctional automatic digital exploration machine cannot penetrate a hard rock layer and cannot keep balance because a probe of common equipment cannot penetrate the hard rock layer, the soil layer and the egg gravel layer under water and an underwater device is easy to incline in the using process.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a multi-functional automatic digital exploration machine of dive formula, is including leading just the device, lead just device upper portion welding has calliper subassembly and slewer, install the centre gripping hydro-cylinder in the calliper subassembly, buffer spring is cup jointed on centre gripping hydro-cylinder piston top, the centre gripping hydro-cylinder promotes centre gripping jaw fork drilling rod.
The upper portion of the slewing device is provided with a hollow oil cylinder, the hollow oil cylinder is sleeved with a clamp block, a spring is arranged at the top of the clamp block for resetting, the slewing device is provided with a hydraulic motor, the axis of the hydraulic motor is rotatably connected with a bevel gear, the bevel gear is meshed with a large bevel gear, the large bevel gear is sleeved with a vertical shaft, and the large bevel gear drives the vertical shaft to rotate.
Preferably, the outer wall of the guide device is sleeved with a rope pressing disc, the outer wall of the rope pressing disc is inserted with a bolt, the outer wall of the rope pressing disc is inserted with a guide arm through the arranged bolt, the inner wall of the guide arm is welded with a rotating shaft, the inner wall of the guide arm is rotatably connected with a pulley through the arranged rotating shaft, the outer wall of the guide arm is rotatably connected with a hinge, the outer wall of the guide arm is rotatably connected with an opening body through the arranged hinge, the bottom of the guide device is sleeved with a protective cover pipe, the bottom of the protective cover pipe is welded with a balance oil cylinder, the center of the bottom of the device is provided with a sleeve with a rack, gears are arranged on two sides of the rack sleeve, the gears are meshed with the rack, the rack and the gear are driven by a motor, the motor driving device is arranged on a base, and the bottom of the rack sleeve is fixedly connected with a balance weight through the arranged base, and the inner wall of the guide device is sleeved with a drill rod.
Preferably, the bottom welding of leading positive arm has the support, the inner wall swing joint of pincers piece has the probe rod, the top of pincers piece has the calliper subassembly through the probe rod joint that sets up, the inner wall joint of calliper subassembly has the centre gripping hydro-cylinder.
Preferably, the top of the rack sleeve is welded with a gap bridge pulley through a set base, and two ends of the top of the rack sleeve, which are far away from the gap bridge pulley, are welded with guide pulleys.
Preferably, the outer wall of the clamping oil cylinder is welded with a buffer spring, the clamping oil cylinder is welded with a clamping block through the arranged buffer spring, the middle of the device is provided with a probe rod caliper rotating device, the rotating device is welded on the upper part of a piston of the guide device, and the rotating device is pressurized and lifted by the guide device.
Preferably, the top of the caliper assembly is provided with a furling opening.
Compared with the prior art, the invention has the beneficial effects that:
1. whether the balance device is internally provided with a balance detector through observing the drilling device or not, if the balance detector displays that the balance device is unbalanced, the balance detector can be lifted away from the water bottom and lightly impacts the underwater mud bottom to cause balance, the balance device cannot be balanced after multiple impacts, the balance cylinder can be adjusted to be leveled, the balance of the device is effectively maintained, the working efficiency can be improved, the device can be protected from being damaged, and the service life of the device is prolonged.
2. When a probe meets hard layers such as gravel and cobbles and the like, rotary drilling is needed, the probe is pulled up by a lifting winch, a drill pipe changing drill is put into the drill in a downward probe mode, the clamping oil cylinder is retracted at the moment, the drawing opening is concentric, the drill is put into a hole, the vertical oil cylinder is lifted to the top, the hollow oil cylinder is started to press a clamp block downwards, the drill pipe is clamped, the driving motor is started, the vertical oil cylinder falls at a low speed, the hydraulic oil meter is displayed normally, when the pressure is too high, the hydraulic meter rises, the drill is lifted slightly and swept slowly, the pressure is mastered, when the footage speed is increased, the hydraulic meter descends, the gravel and cobbles layer can be considered to be passed, the problem that the gravel and the cobbles are difficult to attack is solved, and the working efficiency is effectively improved.
Drawings
FIG. 1 is a schematic view of the present invention of a subsea rig configuration;
FIG. 2 is a schematic view of a clamping jaw assembly of the present invention;
FIG. 3 is a schematic view of the slewing mechanism of the drilling rig according to the present invention;
FIG. 4 is a schematic view of the structure of the hoisting pulley block of the present invention;
FIG. 5 is a schematic view of a base leveling cylinder, an additional counterweight bracket tube and a cylinder protective cover tube structure according to the present invention;
FIG. 6 is a schematic view of a pilot device according to the present invention;
fig. 7 is a structural schematic diagram of the special drill rod catcher of the invention.
In the figure: 1. a pilot device; 2. a caliper assembly; 3. a rack bushing; 4. a turning device; 5. balancing weight; 6. a large bevel gear; 7. a hydraulic motor; 8. a hollow oil cylinder; 9. a bevel gear; 1-1, a clamping block; 1-2, clamping an oil cylinder; 1-3, a buffer spring; 1-4, folding the opening; 14. a drill stem; 3-1, a clamp block; l-1, a guide pulley; l-2, a gap bridge pulley; 5-1, balancing the oil cylinder; d-1, a pilot arm; d-2, a pulley; d-3, pressing a rope disc; d-4, an opening-closing body; 5-2, protecting the cover tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a submersible multifunctional automatic digital exploration machine comprises a guide device 1, wherein a caliper assembly 2 and a rotating device 4 are welded on the upper portion of the guide device 1, a clamping cylinder 1-2 is installed in the caliper assembly 2, a buffering spring 1-3 is sleeved on the piston top of the clamping cylinder 1-2, and the clamping cylinder 1-2 pushes a clamping jaw fork drill rod 14.
In the embodiment, whether the balance device of the drilling device is internally provided with the balance detector is observed, if the balance detector displays that the balance detector is unbalanced, the balance detector can be lifted away from the water bottom and lightly impacts the underwater mud bottom to cause balance, the balance detector cannot be balanced after multiple impacts, the balance oil cylinder 5-1 can be adjusted to be leveled, the balance of the device is effectively kept, the working efficiency can be improved, the device can be protected from being damaged, and the service life of the device is prolonged.
The upper part of the slewing device 4 is provided with a hollow oil cylinder 8, the hollow oil cylinder 8 is sleeved with a clamp block 3-1, the top of the clamp block 3-1 is provided with a spring for resetting, the slewing device 4 is provided with a hydraulic motor 7, the axis of the hydraulic motor 7 is rotatably connected with a bevel gear 9, the bevel gear 9 is meshed with a large bevel gear 6, the large bevel gear 6 is sleeved with a vertical shaft, and the large bevel gear 6 drives the vertical shaft to rotate.
In the embodiment, when a probe needs rotary drilling when encountering gravel and other hard layers, the probe is pulled up by a lifting winch, a drill 14 for replacing a drill rod is put into the drill according to a lower probe rod mode, the clamping oil cylinder 1-2 is retracted at the moment, the drawing opening 1-4 is concentric, the drill is put into a hole, the vertical oil cylinder is lifted to the top, the hollow oil cylinder 8 is started to press the clamp block 3-1 downwards, the drill rod 14 is clamped, the driving motor is started, the vertical oil cylinder falls at a low speed, the hydraulic oil gauge is displayed normally, when the pressure is too high, the hydraulic gauge is lifted slightly, the drill is swept at a low speed, the pressure is mastered, when the footage speed is accelerated, the hydraulic gauge descends, the gravel layer can be considered to be passed, the problem that gravel is difficult to attack is solved, and the working efficiency is effectively improved.
Specifically, the outer wall of a guide device 1 is sleeved with a rope pressing disc d-3, the outer wall of the rope pressing disc d-3 is inserted with a bolt, the outer wall of the rope pressing disc d-3 is inserted with a guide arm d-1 through the arranged bolt, the inner wall of the guide arm d-1 is welded with a rotating shaft, the inner wall of the guide arm d-1 is rotatably connected with a pulley d-2 through the arranged rotating shaft, the outer wall of the guide arm d-1 is rotatably connected with a hinge, the outer wall of the guide arm d-1 is rotatably connected with an opening body d-4 through the arranged hinge, the bottom of the guide device 1 is sleeved with a protective cover pipe 5-2, the bottom of the protective cover pipe 5-2 is welded with a balance oil cylinder 5-1, the center of the bottom of the device is provided with a sleeve pipe 3 with a rack, gears are arranged on two sides of the rack sleeve pipe 3, the gears are meshed with the rack, and the rack and the gear are driven by a motor, the motor driving device is installed on the base, the bottom of the rack sleeve 3 is fixedly connected with a balance weight 5 through the arranged base, and the inner wall of the guide device 1 is sleeved with a drill rod 14.
In the embodiment, the rotating device 4 is arranged on the big bevel gear 6, and a drill rod 14 can pass through the rotating device 4, so that the use is convenient.
Specifically, a support is welded at the bottom of the guide arm d-1, a probe rod is movably connected to the inner wall of the clamp block 3-1, a clamp assembly 2 is clamped at the top of the clamp block 3-1 through the arranged probe rod, and a clamping oil cylinder 1-2 is clamped to the inner wall of the clamp assembly 2.
In this embodiment, the counterweight 5 is mounted to the guide device 1 via a base, and the counterweight 5 may be weighted.
Specifically, a gap bridge pulley L-2 is welded on the top of the rack sleeve 3 through a base, and guide pulleys L-1 are welded on two ends, far away from the gap bridge pulley L-2, of the top of the rack sleeve 3.
In the embodiment, the gap bridge pulley L-2 and the guide pulley L-1 are arranged on the upper part of the base and can be connected with a steel wire rope.
Specifically, the outer wall of the clamping oil cylinder 1-2 is welded with a buffer spring 1-3, the clamping oil cylinder 1-2 is welded with a clamping block 1-1 through the arranged buffer spring 1-3, the middle part of the device is welded on the upper part of a piston of the guide device 1 through an arranged probe rod caliper clamp rotating device 4, the rotating device 4 is welded on the upper part of the piston of the guide device 1, and the rotating device 4 is pressurized and lifted by the guide device 1.
In the embodiment, the pilot device 1 can drive the rotating device 4 to lift under pressure, and the buffer springs 1-3 are welded on the outer walls of the clamping oil cylinders 1-2.
The working principle and the using process of the invention are as follows: the hoisting drill frame is arranged on a barge, a lifting platform and the front edge of a wharf at a proper position, a steel bedplate controlled by a drill frame base oil cylinder extends forwards, a drilling rig is placed on the drill frame base steel bedplate by a crane, an installed hoisting winch steel wire rope penetrates through a pulley d-2 group on the top plate of the drilling rig, whether the hydraulic oil pipe is firmly bound is checked, whether the hoisting winch steel wire rope is firmly bound is tested, whether the drilling rig is balanced is tested, a guiding device 1 is lifted to the top, a rotating device 4 with a proper length is installed, a hydraulic oil pump is started, whether each hydraulic pipeline is smooth is tested, gas is exhausted, the hoisting winch is tensioned after the hoisting winch is ready, the steel bedplate is recovered, the winch is slowly lowered to the bottom, whether a balance detector is arranged in the drilling rig or not is observed, if the balance is displayed, the hoisting winch can be lifted away from the bottom, the underwater bottom is lightly impacted to cause balance, and cannot be balanced after multiple times of impacts, the leveling of a balance oil cylinder 5-1 can be adjusted, a hydraulic oil pump is started, a hydraulic motor 7 is started, a rotary device 4 is pressed down to a proper depth, a lifting winch lifts a probe rod connected with a probe, two guide arms d-1 of a guide device 1 are clamped on a guide steel wire rope, a guide opening-closing body d-4 is opened, the probe rod is placed in the center, the opening-closing body d-4 is tightened, bolts of two heads of the guide arms d-1 are loosened, the diameter of the probe is larger than the central diameter of the guide arms d-1, the guide body is hung on the probe, the lifting winch is slowly lowered, the probe is lowered into a top closing opening 1-4 of the drilling device to the rotary device 4 under the guide action of the guide steel wire rope, the guide device 1 retracts a clamp block 3-1 at the moment, a clamping oil cylinder 1-2 is started, the clamping oil cylinder 1-2 extends to open a fork and is connected with a drill rod 14 special connector, the buffer spring 1-3 acts, if the crossing connection is not in place, the guiding device 1 starts to contract and descend until the position of a catcher, the buffer spring 1-3 pops out and crosses the connection in place, the guiding device 1 continues to work and descend, the probe is pressed down, the size of the position of a feeler lever catcher is determined, the guiding device 1 reaches the bottom position, the clamping oil cylinder 1-2 is recovered, the next cycle is continued, when the probe meets hard layers such as gravel and the like and needs to be drilled in a rotary mode, the probe is pulled up by a lifting winch, a drilling tool with a drill rod 14 replaced is put into the drilling tool according to the mode of lowering the feeler lever, the clamping oil cylinder 1-2 is withdrawn at the moment, a gathering port 1-4 is concentric, the drilling tool is put into a hole, the guiding device 1 rises to the top, the hollow oil cylinder 8 is started to press a clamp block 3-1, the drill rod 14 is clamped, the hydraulic motor 7 is started, the guiding device 1 falls at a slow speed, the hydraulic oil meter is displayed to be normal, and when the pressure is over-fast, the hydraulic meter rises, the drilling tool needs to be lifted lightly, the pressure is mastered by sweeping down slowly, when the footage speed is increased, the hydraulic pressure meter descends, the situation that a gravel layer passes can be considered, the lifting drill is clamped, the position size is recorded, the probe is replaced, previous construction is continued, and when core is taken from the weathered rock layer, an impact drilling tool can be selected for impact construction.
Example one
The top of the caliper component 2 is provided with furling openings 1-4, the top of the clamping support caliper component 2 is provided with furling openings 1-4, and when the device works underwater, some devices need to be replaced, so that the set furling openings 1-4, when the probe rod is inserted into the furling openings 1-4, the arc shape of the furling openings 1-4 can be guided, and the probe rod can pass through the probe rod quickly and conveniently.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A submersible multifunctional automatic digital exploration machine comprises a guide device (1), and is characterized in that: a caliper assembly (2) and a rotating device (4) are welded at the upper part of the pilot device (1), a clamping oil cylinder (1-2) is installed in the caliper assembly (2), a piston top of the clamping oil cylinder (1-2) is sleeved with a buffer spring (1-3), and the clamping oil cylinder (1-2) pushes a clamping jaw fork drill rod (14);
the hydraulic lifting device is characterized in that a hollow oil cylinder (8) is installed on the upper portion of the slewing device (4), a clamp block (3-1) is sleeved on the hollow oil cylinder (8), a spring is arranged on the top of the clamp block (3-1) in a reset mode, a hydraulic motor (7) is installed on the slewing device (4), a bevel gear (9) is rotatably connected to the axis of the hydraulic motor (7), the bevel gear (9) is meshed with a big bevel gear (6), the big bevel gear (6) is sleeved with a vertical shaft, and the big bevel gear (6) drives the vertical shaft to rotate.
2. The submersible multi-function automated digital prospecting machine of claim 1, characterized in that: the outer wall of the guide device (1) is sleeved with a rope pressing disc (d-3), the outer wall of the rope pressing disc (d-3) is spliced with a bolt, the outer wall of the rope pressing disc (d-3) is spliced with a guide arm (d-1) through the arranged bolt, the inner wall of the guide arm (d-1) is welded with a rotating shaft, the inner wall of the guide arm (d-1) is rotatably connected with a pulley (d-2) through the arranged rotating shaft, the outer wall of the guide arm (d-1) is rotatably connected with a hinge, the outer wall of the guide arm (d-1) is rotatably connected with an opening body (d-4) through the arranged hinge, the bottom of the guide device (1) is sleeved with a protective cover pipe (5-2), and the bottom of the protective cover pipe (5-2) is welded with a balance oil cylinder (5-1), the device is characterized in that a rack sleeve (3) is mounted at the center of the bottom of the device, gears are mounted on two sides of the rack sleeve (3), the gears are meshed with racks, the racks and the gears are driven by a motor, the motor driving device is mounted on a base, the bottom of the rack sleeve (3) is fixedly connected with a balance weight (5) through the base, and a drill rod (14) is sleeved on the inner wall of the guide device (1).
3. The submersible multi-function automated digital prospecting machine of claim 1, characterized in that: the bottom of the guide arm (d-1) is welded with a support, the inner wall of the clamp block (3-1) is movably connected with a probe rod, the top of the clamp block (3-1) is connected with a clamp assembly (2) in a clamping mode through the probe rod, and the inner wall of the clamp assembly (2) is connected with a clamping oil cylinder (1-2) in a clamping mode.
4. The submersible multi-function automated digital prospecting machine of claim 1, characterized in that: the top of the rack sleeve (3) is welded with a gap bridge pulley (L-2) through a arranged base, and two ends of the top of the rack sleeve (3), which are far away from the gap bridge pulley (L-2), are welded with guide pulleys (L-1).
5. The submersible multi-function automated digital prospecting machine of claim 2, characterized in that: the outer wall of the clamping oil cylinder (1-2) is welded with a buffer spring (1-3), the clamping oil cylinder (1-2) is welded with a clamping block (1-1) through the arranged buffer spring (1-3), the middle of the device is welded on the upper portion of a piston of the guide device (1) through the arranged probe rod clamp rotating device (4), and the rotating device (4) is pressurized and lifted through the guide device (1).
6. The submersible multi-function automated digital prospecting machine of claim 1, characterized in that: the top of the caliper component (2) is provided with a furling opening (1-4).
CN202010758461.0A 2020-07-31 2020-07-31 Submersible multifunctional automatic digital exploration machine Pending CN114075927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010758461.0A CN114075927A (en) 2020-07-31 2020-07-31 Submersible multifunctional automatic digital exploration machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010758461.0A CN114075927A (en) 2020-07-31 2020-07-31 Submersible multifunctional automatic digital exploration machine

Publications (1)

Publication Number Publication Date
CN114075927A true CN114075927A (en) 2022-02-22

Family

ID=80279404

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010758461.0A Pending CN114075927A (en) 2020-07-31 2020-07-31 Submersible multifunctional automatic digital exploration machine

Country Status (1)

Country Link
CN (1) CN114075927A (en)

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