CN116427853B - Drilling and reaming device and method suitable for gravel stratum - Google Patents
Drilling and reaming device and method suitable for gravel stratum Download PDFInfo
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- CN116427853B CN116427853B CN202310416145.9A CN202310416145A CN116427853B CN 116427853 B CN116427853 B CN 116427853B CN 202310416145 A CN202310416145 A CN 202310416145A CN 116427853 B CN116427853 B CN 116427853B
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- 238000005553 drilling Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 14
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 14
- 241001330002 Bambuseae Species 0.000 claims description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 14
- 239000011425 bamboo Substances 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005755 formation reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000004576 sand Substances 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
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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
- E21B12/00—Accessories for drilling tools
- E21B12/06—Mechanical cleaning devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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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)
- Earth Drilling (AREA)
Abstract
The invention relates to the field of drilling, in particular to a drilling reaming device and method suitable for a gravel stratum. According to the invention, the motor is driven to rotate, the screw is driven to rotate, the sliding block moves up and down, the hole expanding plate is driven to expand, the expansion degree of the hole expanding plate is controlled by controlling the number of steps of the motor, the diameter expanding requirement is met, the bottom sealing plates are arranged below the hole expanding plate, the side sealing plates are arranged on two sides, the top sealing plates are arranged on the top, and the sealing plates are matched with the rubber blocks, so that the gravel on the sealing plates can be scraped in the process of withdrawing the hole expanding plate, and the service life of the device is effectively prolonged. And the locking part is arranged, the reaming plate is locked after being unfolded, so that screw deformation or sliding block movement caused by overlarge stress in the rotation process is prevented, and the diameter expanding precision is improved.
Description
Technical Field
The invention relates to the field of drilling, in particular to a drilling reaming device and method suitable for a gravel stratum.
Background
Gravel formations are a common type of typical unstable formation in geological drilling and are essentially characterized by loose structure, poor or unconsolidated, granular shapes of varying sizes. The drilling efficiency is low, the loss of the drill bit is large, the drilling is easy to get out of the clamp, the drilling burying accident is easy, the hole forming is difficult, and the accident post-treatment is difficult. Thus, ensuring that the borehole is formed during drilling is critical to the drilling of pebble formations. In the prior art, a reaming device with variable diameter exists, for example, patent CN213175519U discloses a reaming while drilling tool, and a bidirectional threaded screw rod drives an eye protection body to move for reaming. When the gravel stratum is drilled, the eye protection body is stressed greatly, and the situation that the stress on the two sides is uneven can cause the movable block or the screw rod to deform, so that the reaming precision is affected.
The invention aims to solve the problems in the construction, and provides a pebble layer reaming device and a pebble layer reaming method, which can effectively improve the construction efficiency, can be applied to engineering geological exploration engineering, are simple and convenient to apply and have high reaming efficiency.
Disclosure of Invention
In order to make up the defects of the prior art and solve the problems in the background art, the invention provides the following technical scheme.
The utility model provides a boring reaming device suitable for gravel stratum, includes drilling rod, reducing catcher, reamer main part, guide cylinder and the reaming head that connect gradually, and the drilling rod is connected through first screw thread with the reducing catcher, and the reducing catcher passes through the second screw thread with the reamer main part to be connected, includes reducing reaming part and locking part in the reamer main part, and locking part is used for locking reducing reaming part.
The reducing reaming component comprises a motor and a first gear; bearing, screw rod, second gear, slider, first connecting portion, head rod, second connecting portion, hole expanding board and reaming blade. The lower position sets up the motor in the middle of the roof of reamer main part, the output shaft of motor has first gear, the roof symmetry of reamer main part is fixed to be set up four bearings, the bearing below rotates and is connected with the screw rod, fixed second gear that sets up on the screw rod, first gear and second gear meshing, the screw rod is provided with the slider, the slider is located the second gear below, the slider rotates with the screw rod to be connected, the screw rod rotates and can drive the slider and reciprocate, be provided with first connecting portion on the slider, the same rectangular hole is all offered to four curb plate openings of reamer main part, set up the hole expanding board in the rectangular hole, be provided with second connecting portion on the hole expanding board, first connecting portion and second connecting portion are articulated through the head rod, the head rod is articulated with first connecting portion and second connecting portion, hole expanding board bottom is articulated with the curb plate of reamer main part, the hole expanding board sets up the reaming blade, can be realized from this, driving motor rotates, make the slider reciprocate, drive the hole expanding board and expand, the step number through control motor, thereby the demand of expanding board is satisfied.
The hole expanding plate below sets up the bottom closing plate, and both sides set up the side closing plate, and the top sets up the top closing plate, and the top closing plate is the arc, and bottom closing plate, side closing plate and top closing plate all laminate with the rectangular hole of reamer main part to when making the hole expanding plate expand and withdraw, outside grit can not get into the inside of reamer main part.
The reamer main body bottom plate top sets up first support section of thick bamboo, is equipped with the second support section of thick bamboo of intercommunication in the middle of the first support section of thick bamboo, and the side length of second support section of thick bamboo is less than first support section of thick bamboo, and second support section of thick bamboo top is provided with first fixed plate, and the side length of first fixed plate is the same with first support section of thick bamboo, and the screw rod passes first fixed plate to be fixed at the upper surface of first support section of thick bamboo, and reamer main body, first support section of thick bamboo and second support section of thick bamboo are the cuboid barrel that the horizontal cross-section is square.
The specific setting mode of the locking component is as follows: the bottom plate of reamer main part is fixed and is provided with the brace table, the brace table is located the inside of first support section of thick bamboo, the brace table top sets up the support column, the support column top is provided with the second fixed plate, set up four first springs of symmetry on the surface of brace table, it is located around the support column and with the support column butt, every first spring all butt has first backup pad, the other end and the reaming board butt of first backup pad, be provided with the sawtooth in the first backup pad, the support column slides and is provided with the sliding plate, the sliding plate is located the top of first backup pad, and set up the rack with first backup pad engaged with on the sliding plate, set up the second spring between sliding plate and the second fixed plate, the sliding plate is the iron plate, set up the electro-magnet on the second fixed plate, when the device initial state, the electro-magnet on the second fixed plate is circular telegram, make sliding plate and second fixed plate contact, the rack and the rack of sliding plate are separated with the reaming board, the rack of first spring makes all the time expand with the rack of first backup pad, thereby the first backup pad is adjusted to the elasticity of first backup pad, the hole-expanding plate is adjusted to the rack after the first backup pad is cut off, thereby the rack is meshed with the rack of first backup pad.
The sliding plate is provided with four second connecting rods, the second connecting rods penetrate through the second fixing plates and are connected with inverted cone blocks, the four sides of each inverted cone block are abutted to guide rods, the guide cylinders are arranged inside the second supporting cylinders, the guide rods penetrate through the guide cylinders, the other ends of the guide rods are provided with locking plates, saw teeth are arranged on the locking plates, saw teeth meshed with the locking plates are arranged on the sliding blocks, the locking plates are consistent with the height of the second supporting cylinders, a plurality of tension springs are arranged between the locking plates and the second supporting cylinders, when the sliding plates are in an initial state, the saw teeth on the locking plates are meshed with saw teeth on the sliding blocks, when the expanding plates are required to be controlled to be unfolded or retracted, electromagnets on the second fixing plates are electrified, the sliding plates are in contact with the second fixing plates, the sliding plates push the second connecting rods to move upwards, then push the inverted cone blocks to move upwards, the saw teeth on the locking plates are pulled by the tension springs, after the expanding plates are adjusted to be in place, the electromagnets are powered off, the sliding plates are pushed to slide downwards, accordingly, the inverted cone blocks are driven to slide downwards, the inverted cone blocks are pushed to move outwards, and the guide plates are pushed to move outwards, so that the locking plates are effectively meshed with the sliding blocks, and the saw teeth are effectively prevented from moving upwards.
Further, a sliding rod is fixedly connected between the first supporting cylinder and the first fixing plate, and the sliding block is in sliding connection with the sliding rod, so that the connection stability of the sliding block can be improved.
Further, the side wall of the reamer main body is connected with a rubber block in a jogged mode, the rubber block is in butt joint with the bottom sealing plate, the side sealing plate and the top sealing plate, the end portion of the rubber block is arc-shaped, and the sealing effect of the device can be improved, so that impurities of the side sealing plate and the top sealing plate are scraped when the reamer plate is retracted.
Further, a pressure sensor is arranged on the upper surface of the first supporting cylinder, and the pressure sensor is located right below the sliding block. The motor is calibrated by driving the slider downward until the pressure sensor is touched, and the pressure sensor feeds back a signal.
Further, a position sensor is arranged in the reamer body, and after the reamer device is lowered to a corresponding position, the reamer plate is driven to be unfolded to a set diameter.
Further, a carbide tip is provided on the reamer blade.
A reaming method comprising a drilling and reaming apparatus adapted for use in a gravel formation:
step one, a drilling and reaming device suitable for a gravel stratum is lowered into a borehole to be reamed, position information is detected through a position sensor, after the position information reaches a set position, an electromagnet on a second fixed plate is electrified, a sliding plate is in contact with the second fixed plate, a rack of the sliding plate is separated from a rack of a first supporting plate, and the first supporting plate is always abutted to the reaming plate by the elastic force of a first spring.
Step two, driving the motor to rotate, driving the screw to rotate, enabling the sliding block to move downwards, driving the expansion plate to expand, and controlling the expansion degree of the expansion plate by controlling the step number of the motor, so that the preset expansion diameter is achieved.
And thirdly, the electromagnet is powered off, the rack of the sliding plate is pushed by the elastic force of the second spring to be meshed with the rack of the first supporting plate, so that the first supporting plate is fixed, and finally, rotary reaming is carried out.
The beneficial effects of the invention are as follows:
1. the bottom sealing plate is arranged below the hole expanding plate, the side sealing plates are arranged on two sides of the hole expanding plate, the top sealing plate is arranged at the top of the hole expanding plate, and rubber blocks are arranged on the sealing plates, so that the hole expanding plate can scrape off the gravel on the sealing plates in the retracting process, and the service life of the device is effectively prolonged.
2. The electromagnet on the second fixed plate is electrified, so that the sliding plate is contacted with the second fixed plate, the racks of the sliding plate are separated from the racks of the first supporting plate, the elastic force of the first spring enables the first supporting plate to be always abutted to the hole expanding plate, the driving motor adjusts the unfolding degree of the hole expanding plate, after the adjustment is completed, the electromagnet is powered off, the racks of the second spring push the racks of the sliding plate to be meshed with the racks of the first supporting plate, the first supporting plate is fixed, the hole expanding plate is fixed through the first supporting plate, the stress of the hole expanding plate is avoided being overlarge in the rotating process, the screw is deformed or the sliding block is shifted, and therefore the hole expanding precision can be effectively improved.
3. When the device is in an initial state, the saw teeth on the locking plate are meshed with the saw teeth on the sliding block, when the hole expanding plate needs to be controlled to be unfolded or retracted, the electromagnet on the second fixing plate is electrified, so that the sliding plate is in contact with the second fixing plate, the sliding plate pushes the second connecting rod to move upwards, then the inverted cone block is pushed to move upwards, the saw teeth of the locking plate are pulled by the tension spring to be separated from the saw teeth on the sliding block, after the hole expanding plate is adjusted in place, the electromagnet is powered off, the sliding plate is pushed to slide downwards by the elasticity of the second spring, so that the inverted cone block is driven to slide downwards, the guide rod is pushed to move outwards, the saw teeth on the locking plate are meshed with the saw teeth on the sliding block, the sliding block is effectively locked, the moving position of the sliding block is prevented, and the stability of the device is further improved.
Drawings
FIG. 1 is a front view of a drilling and reaming apparatus suitable for use with a gravel formation;
fig. 2 is a block diagram of the reamer body;
FIG. 3 is a block diagram of a variable diameter reamer part;
FIG. 4 is a block diagram of the locking member;
fig. 5 is a block diagram of the rubber block.
In the figure: 1. a drill rod; 2. reducing catcher; 3. a reamer body; 4. a guide cylinder; 5. a reaming head; 6. a reducing reaming component; 601. a motor; 602. a first gear; 603. a bearing; 604. a screw; 605. a second gear; 606. a slide block; 607. a first connection portion; 608. a first connecting rod; 609. a second connecting portion; 610. a hole expansion plate; 611. reaming the blade; 612. a first support cylinder; 613. a bottom sealing plate; 614. side sealing plates; 615. a top sealing plate; 616. a second support cylinder; 617. a first fixing plate; 618. a slide bar; 7. a locking member; 701. a support table; 702. a support column; 703. a first spring; 704. a first support plate; 705. a second fixing plate; 706. a second spring; 707. a sliding plate; 708. a fixed block; 709. a second connecting rod; 710. an inverted cone block; 711. a guide cylinder; 712. a guide rod; 713. a locking plate; 714. a tension spring; 8. rubber blocks.
Description of the embodiments
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 5, a drilling and reaming device suitable for a gravel stratum comprises a drill rod 1, a reducing catcher 2, a reamer body 3, a guide cylinder 4 and a reaming head 5 which are sequentially connected, wherein the drill rod 1 is connected with the reducing catcher 2 through a first screw thread, the reducing catcher 2 is connected with the reamer body 3 through a second screw thread, the reamer body 3 comprises a reducing reaming part 6 and a locking part 7, and the locking part 7 is used for locking the reducing reaming part 6.
The reducing reamer part 6 includes a motor 601, a first gear 602; bearing 603, screw 604, second gear 605, slider 606, first connection 607, first connection 608, second connection 609, hole-enlarging plate 610 and hole-enlarging blade 611. The motor 601 is arranged at the lower position in the middle of the top plate of the reamer body 3, the first gear 602 is connected with the output shaft of the motor 601, four bearings 603 are symmetrically and fixedly arranged on the top plate of the reamer body 3, a screw rod 604 is connected below the bearings 603, a second gear 605 is fixedly arranged on the screw rod 604, the first gear 602 is meshed with the second gear 605, the screw rod 604 is provided with a sliding block 606, the sliding block 606 is positioned below the second gear 605, the sliding block 606 is rotationally connected with the screw rod 604, the sliding block 606 can be driven to move up and down by rotation of the screw rod 604, a first connecting part 607 is arranged on the sliding block 606, the same rectangular holes are formed in the four side plate openings of the reamer body 3, an expanding plate 610 is arranged in the rectangular holes, a second connecting part 609 is arranged on the expanding plate 610, the first connecting part 607 and the second connecting part 609 are connected through a first connecting rod 608, the bottom of the expanding plate 610 is hinged with the side plate of the reamer body 3, the expanding plate 610 is provided with blades, and accordingly, the driving motor 601 can be driven to rotate, the sliding block 604 can be driven to move up and down, the expanding plate 610 can be controlled by the expanding plate 610, and the expanding diameter of the expanding plate 610 can be controlled, and the expanding hole can be controlled by the expanding hole 610.
The bottom sealing plate 613 is arranged below the hole expanding plate 610, the side sealing plates 614 are arranged on two sides, the top sealing plate 615 is arranged on the top, the top sealing plate 615 is an arc-shaped plate, and the bottom sealing plate 613, the side sealing plate 614 and the top sealing plate 615 are attached to the rectangular hole of the reamer body 3, so that when the hole expanding plate 610 is retracted after being unfolded, external sand and stones cannot enter the reamer body 3.
The bottom plate top of reamer main part 3 sets up first support tube 612, is equipped with the second support tube 616 of intercommunication in the middle of the first support tube 612, and the length of limit of second support tube 616 is less than first support tube 612, is provided with first fixed plate 617 above the second support tube 616, and the length of limit of first fixed plate 617 is the same with first support tube 612, and screw rod 604 passes first fixed plate 617 and fixes the upper surface at first support tube, and reamer main part 3, first support tube 612 and second support tube 616 are the cuboid barrel that the horizontal cross-section is square.
The locking member 7 is specifically provided in the following manner: the bottom plate of reamer body 3 is fixedly provided with supporting table 701, supporting table 701 is located inside first supporting cylinder 612, supporting column 702 is arranged above supporting table 701, supporting column 702 is a cuboid column with square cross section, the top of supporting column 702 is provided with second fixed plate 705, four symmetrical first springs 703 are arranged on the surface of supporting table 701, the four first springs 703 are located around supporting column 702 and are abutted to supporting column 702, each first spring 703 is abutted to first supporting plate 704, the other end of first supporting plate 704 is abutted to reaming plate 610, saw teeth are arranged on first supporting plate 704, supporting column 702 is slidably provided with sliding plate 707, sliding plate 707 is located above first supporting plate 704, racks meshed with first supporting plate 704 are arranged on sliding plate 707, second springs 706 are arranged between sliding plate 707 and second fixed plate 705, sliding plate 707 is an electromagnet is arranged on second fixed plate 705, in the initial state of the device, the electromagnet is in the power-off state, racks of second springs 706 push the sliding plate 707 and racks of first supporting plate 704 to be meshed with racks of first supporting plate 704, when it is required to control, the other end of first supporting plate 704 is abutted to reaming plate 610, racks of second springs 706 are fixedly connected to first supporting plate 704, and then the first supporting plate 704 is fixedly meshed with first racks are pushed by sliding plate 707, and the first racks are fixedly connected to first supporting plate 707, when it is required to control the electromagnet is in the initial state, and the electromagnet is in power-off state, and the electromagnet is in power state, when the electromagnet is in power state, and is in power state.
Four second connecting rods 709 are arranged on the sliding plate 707, the second connecting rods 709 penetrate through the second fixing plate 705 to be connected with an inverted conical block 710, four sides of the inverted conical block 710 are abutted to guide rods 712, guide cylinders 711 are arranged inside the second supporting cylinders 616, the guide rods 712 penetrate through the guide cylinders 711, locking plates 713 are arranged at the other ends of the guide rods 712, saw teeth are arranged on the locking plates 713, saw teeth meshed with the locking plates 713 are arranged on the sliding blocks 606, the heights of the locking plates 713 are consistent with those of the second supporting cylinders 616, a plurality of tension springs 714 are arranged between the locking plates 713 and the second supporting cylinders 616, in an initial state of the device, the electromagnets are in a power-off state, the saw teeth on the locking plates 713 are meshed with the saw teeth on the sliding blocks 606, when the expanding plates 610 are required to be controlled to be unfolded or retracted, the electromagnets on the second fixing plates 705 are electrified, the sliding plates 707 are contacted with the second fixing plates 705, the sliding plates 707 push the second connecting rods 709 to move upwards, the saw teeth are arranged on the locking plates 713 to be meshed with the sliding blocks 606, the saw teeth on the sliding blocks 606 are separated, and the saw teeth on the sliding blocks 606 are adjusted to be in a position, and then the power-off state of the electromagnets is pushed to be in a power-off state, and the saw teeth is locked to the saw teeth on the sliding blocks 606 is in a downward mode, and the sliding blocks is meshed with the saw teeth is in a downward mode.
Further, a sliding rod 618 is fixedly connected between the first supporting cylinder 612 and the first fixing plate, and the sliding block 606 is slidably connected with the sliding rod 618, so that the connection stability of the sliding block can be increased.
Further, the side wall of the reamer body 3 is connected with a rubber block in a jogged manner, the rubber block is in contact with the bottom sealing plate 613, the side sealing plate 614 and the top sealing plate 615, and the end part of the rubber block is arc-shaped, so that the sealing effect of the device can be improved, and impurities of the side sealing plate 614 and the top sealing plate 615 are scraped when the reamer body 610 is retracted.
Further, the upper surface of the first support cylinder 612 is provided with a pressure sensor located directly below the slider 606. The motor is calibrated by driving the slider downward until the pressure sensor is touched, and the pressure sensor feeds back a signal.
Further, a position sensor is provided in the reamer body 3, and when the reamer apparatus is lowered to a corresponding position, the reamer plate 610 is driven to be spread to a set diameter size.
Further, carbide tips are provided on the reamer blades 611.
Example two
A reaming method comprising a drilling and reaming apparatus adapted for use in a gravel formation:
step one, a drilling and reaming device suitable for a gravel stratum is lowered into a borehole to be reamed, position information is detected through a position sensor, after the position information reaches a set position, an electromagnet on a second fixed plate 705 is electrified, a sliding plate 707 is in contact with the second fixed plate 705, a rack of the sliding plate 707 is separated from a rack of a first supporting plate 704, and the first supporting plate 704 is always abutted against a reaming plate 610 by the elastic force of a first spring 703.
Step two, the driving motor 601 rotates to drive the screw 604 to rotate, so that the sliding block 606 moves downwards to drive the hole expanding plate 610 to expand, and the expansion degree of the hole expanding plate 610 is controlled by controlling the step number of the motor 601, so that the set hole expanding diameter is achieved.
And step three, the electromagnet is powered off, the rack of the sliding plate 707 is pushed by the elastic force of the second spring 706 to be meshed with the rack of the first supporting plate 704, so that the first supporting plate 704 is fixed, and finally rotary reaming is performed.
Example III
Step one, a drilling and reaming device suitable for a gravel stratum is lowered into a borehole to be reamed, position information is detected through a position sensor, after the position information reaches a set position, an electromagnet on a second fixed plate 705 is electrified, so that a sliding plate 707 is contacted with the second fixed plate 705, a rack of the sliding plate 707 is separated from a rack of a first supporting plate 704, the first supporting plate 704 is always abutted with a reaming plate 610 by the elastic force of a first spring 703, the sliding plate 707 pushes a second connecting rod 709 to move upwards, and then an inverted conical block 710 is pushed to move upwards, and a pulling force spring 714 pulls saw teeth of a locking plate 713 to be separated from saw teeth on a sliding block 606.
Step two, the driving motor 601 rotates to drive the screw 604 to rotate, so that the sliding block 606 moves downwards to drive the hole expanding plate 610 to expand, and the expansion degree of the hole expanding plate 610 is controlled by controlling the step number of the motor 601, so that the set hole expanding diameter is achieved.
Step three, the electromagnet is powered off, the rack of the sliding plate 707 is pushed by the elastic force of the second spring 706 to be meshed with the rack of the first supporting plate 704, so that the first supporting plate 704 is fixed, the inverted cone block 710 slides downwards, the inverted cone block 710 pushes the guide rod 712 to move outwards, so that the saw teeth on the locking plate 713 are meshed with the saw teeth on the sliding block 606, the sliding block 606 is locked, and finally rotary reaming is performed.
Claims (8)
1. Drilling and reaming device suitable for gravel formation, characterized in that: the drilling rod comprises a drilling rod (1), a reducing connector (2), a reamer main body (3), a guide cylinder (4) and a reaming head (5) which are sequentially connected, wherein the reamer main body (3) comprises a reducing reaming part (6) and a locking part (7), the reducing reaming part (6) comprises a motor (601), a first gear (602), a bearing (603), a screw (604), a second gear (605), a sliding block (606), a first connecting part (607), a first connecting rod (608), a second connecting part (609), a reaming plate (610) and reaming blades (611); the lower position sets up motor (601) in the middle of the roof of reamer main part (3), the output shaft of motor (601) has first gear (602), four bearings (603) are all offered to the roof symmetry fixed setting of reamer main part (3), bearing (603) below rotates and is connected with screw rod (604), fixedly set up second gear (605) on screw rod (604), first gear (602) and second gear (605) meshing, screw rod (604) are provided with slider (606), slider (606) are located second gear (605) below, screw rod (604) rotation can drive slider (606) and reciprocate, be provided with first connecting portion (607) on slider (606), four curb plate openings of reamer main part (3) all offer the same rectangular hole, set up reaming board (610) in the rectangular hole, be provided with second connecting portion (609) on reaming board (610), first connecting portion (607) and second connecting portion (609) are connected through first connecting rod (608), first connecting rod (608) and second connecting portion (609) are articulated top (615) and sealing plate (615), top (615) are both sides are articulated top (615), top (615) are set up sealing plate (top (615) top (top) side (615), the bottom sealing plate (613) is hinged with the inner side wall of the reamer body (3); the locking component (7) is used for locking the reducing reaming component (6);
a first supporting cylinder (612) is arranged above a bottom plate of the reamer main body (3), a second supporting cylinder (616) communicated with the first supporting cylinder (612) is arranged in the middle of the first supporting cylinder (612), the side length of the second supporting cylinder (616) is smaller than that of the first supporting cylinder (612), a first fixing plate (617) is arranged above the second supporting cylinder (616), a screw (604) penetrates through the first fixing plate (617) to be fixed on the upper surface of the first supporting cylinder (612), and the reamer main body (3), the first supporting cylinder (612) and the second supporting cylinder (616) are cuboid cylinders with square horizontal sections;
the specific setting mode of the locking component (7) is as follows: the bottom plate of reamer main part (3) is fixed and is provided with supporting bench (701), supporting bench (701) is located the inside of first backing drum (612), supporting bench (701) top sets up support column (702), support column (702) are the cuboid post that the cross-section is square, support column (702) top is provided with second fixed plate (705), four first springs (703) of symmetry are set up on the surface of supporting bench (701), it is located the periphery of support column (702) and with support column (702) butt, every first spring (703) all butt has first backup pad (704), the other end and the reaming board (610) butt of first backup pad (704), be provided with the sawtooth on first backup pad (704), support column (702) slip is provided with sliding plate (707), sliding plate (707) are located the top of first backup pad (704), and set up on sliding plate (707) and set up second spring (706) with first backup pad (704) looks meshing, set up between sliding plate (707) and second fixed plate (705), sliding plate (707) are iron plate (707), set up on the second fixed rack (705).
2. Drilling and reaming apparatus suitable for use in an egg gravel formation according to claim 1, wherein: set up four second connecting rods (709) on sliding plate (707), second connecting rod (709) run through second fixed plate (705) and are connected with back taper piece (710), four side butt of back taper piece (710) have guide bar (712), second support section of thick bamboo (616) are inside to be set up guide bar (711), guide bar (712) pass guide bar (711), one end of guide bar (712) is provided with locking plate (713), set up the sawtooth on locking plate (713), set up the sawtooth with locking plate (713) meshing on slider (606), the height of locking plate (713) and second support section of thick bamboo (616) is unanimous, and set up a plurality of tension springs (714) between locking plate (713) and second support section of thick bamboo (616).
3. Drilling and reaming apparatus suitable for use in an egg gravel formation according to claim 1, wherein: the drill rod (1) is connected with the reducing catcher (2) through a first screw thread, and the reducing catcher (2) is connected with the reamer main body (3) through a second screw thread.
4. Drilling and reaming apparatus suitable for use in an egg gravel formation according to claim 1, wherein: the hole enlarging plate (610) is provided with hole enlarging blades (611), and the hole enlarging blades (611) are provided with hard alloy heads.
5. Drilling and reaming apparatus suitable for use in an egg gravel formation according to claim 1, wherein: a sliding rod (618) is fixedly connected between the first supporting cylinder (612) and the first fixing plate (617), and the sliding block (606) is in sliding connection with the sliding rod (618).
6. Drilling and reaming apparatus suitable for use in an egg gravel formation according to claim 1, wherein: the side wall of the reamer main body (3) is connected with a rubber block (8) in a jogged mode, the rubber block (8) is in contact with a bottom sealing plate (613), a side sealing plate (614) and a top sealing plate (615), and the end portion of the rubber block (8) is arc-shaped.
7. Drilling and reaming apparatus suitable for use in an egg gravel formation according to claim 1, wherein: the upper surface of the first support cylinder (612) is provided with a pressure sensor, the pressure sensor is positioned under the sliding block (606), and the reamer body (3) is provided with a position sensor.
8. The reaming method of the drilling and reaming device for the gravel stratum according to any one of claims 1 to 7, wherein the drilling and reaming device for the gravel stratum is lowered into a borehole to be reamed, position information is detected through a position sensor, after the position information is reached to a set position, an electromagnet on a second fixed plate (705) is electrified, a sliding plate (707) is in contact with the second fixed plate (705), a rack of the sliding plate (707) is separated from a rack of a first supporting plate (704), and the first supporting plate (704) is always abutted against a reaming plate (610) by elasticity of a first spring (703);
step two, driving a motor (601) to rotate, driving a screw (604) to rotate, enabling a sliding block (606) to move downwards, driving a hole expansion plate (610) to expand, and controlling the expansion degree of the hole expansion plate (610) to achieve a set hole expansion diameter by controlling the step number of the motor (601);
and thirdly, the electromagnet is powered off, the rack of the sliding plate (707) is pushed by the elastic force of the second spring (706) to be meshed with the rack of the first supporting plate (704), so that the first supporting plate (704) is fixed, and finally rotary reaming is performed.
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| CN202310416145.9A CN116427853B (en) | 2023-04-19 | 2023-04-19 | Drilling and reaming device and method suitable for gravel stratum |
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| CN202310416145.9A CN116427853B (en) | 2023-04-19 | 2023-04-19 | Drilling and reaming device and method suitable for gravel stratum |
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| CN116427853B true CN116427853B (en) | 2024-01-09 |
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|---|---|
| CN116427853A (en) | 2023-07-14 |
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