CN113006723B - Butterfly type twist drill pulling tool and drilling pulling method thereof - Google Patents
Butterfly type twist drill pulling tool and drilling pulling method thereof Download PDFInfo
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- CN113006723B CN113006723B CN202110270377.9A CN202110270377A CN113006723B CN 113006723 B CN113006723 B CN 113006723B CN 202110270377 A CN202110270377 A CN 202110270377A CN 113006723 B CN113006723 B CN 113006723B
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- 238000005553 drilling Methods 0.000 title claims abstract description 77
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
- 239000010959 steel Substances 0.000 claims abstract description 58
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims description 22
- 239000002689 soil Substances 0.000 claims description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 2
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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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
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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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
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Abstract
A butterfly twist drill pulling tool and a drilling pulling method thereof are provided, the butterfly twist drill pulling tool at least comprises a drilling platform, a round cake clamping groove drill rod, a direct current motor, a motor fixing device, a commutator connecting terminal, a gear, a steel handle, a clamping structure control switch handle and a twist drill; the drilling platform comprises a rectangular base, an electric hydraulic jack, a steel tower structure, a cylindrical groove and a steel outer wrapping structure; the steel outer wrapping structures are arranged on the front side and the rear side above the steel tower structure, the motor fixing device is fixed between the front steel outer wrapping structure and the rear steel outer wrapping structure, and the direct current motor is connected with the gear flat key through the motor fixing device; the upper end of the cake clamping groove drill rod is clamped and arranged at the middle groove of the steel handle through a clamping structure. The invention combines the compound transmission of the electric hydraulic jack and the motor gear, has three functions of drilling, continuous pulling and automatic drill lifting, saves a large amount of manpower and obviously improves the drilling efficiency and quality.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering investigation and drilling of power transmission lines, in particular to a butterfly type twist drill pulling tool and a drilling pulling method thereof.
Background
The geotechnical engineering investigation of the power transmission line is an important link of the investigation in the power industry, particularly, the stability of a tower of the power transmission line is a basic condition for guaranteeing the normal operation of the overhead power transmission line, factors such as the terrain and the topography of the tower, the type of the tower, the required foundation depth, the drilling cost and the like are considered, and currently, the most widely used drilling tool is still the original hand-operated twist drill in the geotechnical engineering investigation of the power transmission line.
In actual drilling operation, along with the increase of drilling depth and the change of underground soil layer strength, sometimes after a twist drill bit carries soil, the drill rod is difficult to pull up, sometimes even 3-4 people cannot pull up, the drill rod has to be rotated in the opposite direction, and in the drilling process, when the drill rod needs to be added, the upper rotating structure is usually required to be disassembled, and then the drill rod is assembled. Therefore, the drilling period is prolonged, a large amount of manpower is consumed, and after the soil turns reversely, the soil structure is seriously disturbed, so that field workers can misjudge the soil property, and the provided data is deviated. Even if a pulling-up tool with an auxiliary pulling-up effect is used, the pulling-up may be difficult due to insufficient pulling-up force. Therefore, there is a need to develop a pulling tool with a greater pulling force to achieve drill pulling in complex drilling operations.
Disclosure of Invention
The invention aims to solve the technical problems that in the drilling process of the conventional hand-operated twist drill, the drill rod is disassembled and assembled, the drilling load is insufficient, the pulling-up and the drill lifting are difficult and the like, and provides a butterfly type twist drill pulling tool and a drilling pulling-up method thereof, so that the functions of drilling, continuous pulling-up and automatic drill lifting are realized, a large amount of manpower is saved, and the drilling efficiency and quality are obviously improved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a butterfly twist drill pulling tool at least comprises a drilling platform, a round cake clamping groove drill rod, a direct current motor, a motor fixing device, a commutator connecting terminal, a gear, a steel handle, a clamping structure control switch handle and a twist drill; the drilling platform comprises five parts, namely a rectangular base, an electric hydraulic jack, a steel tower structure, a cylindrical groove and a steel outer packaging structure, wherein a central groove matched with the electric hydraulic jack is formed in the centers of the rectangular base and the electric hydraulic jack, the center of the upper part of the steel tower structure is welded with the cylindrical groove, a round cake clamping groove drilling rod sequentially penetrates through the cylindrical groove of the steel tower structure, the central groove of the electric hydraulic jack and the central groove of the rectangular base from top to bottom, and the lower end of the round cake clamping groove drilling rod is welded and fixed with a twist drill; the electric hydraulic jack control switch is connected with the electric hydraulic jack through an electric wire; clamping grooves are formed in two sides of the rectangular base, supporting legs are arranged at the lower part of the steel tower structure, and the supporting legs penetrate through the clamping grooves and are fixed in the soil layer; the steel outer wrapping structures are arranged on the front side and the rear side above the steel tower structure, the motor fixing device is fixed between the front steel outer wrapping structure and the rear steel outer wrapping structure, and the direct current motor is connected with the gear flat key (spline) through the motor fixing device; the upper end of the cake clamping groove drill rod is clamped and arranged at the middle groove of the steel handle through a clamping structure, and the clamping structure controls the switch handle to control the clamping structure to be screwed and loosened; the direct current power supply is connected to the commutator connecting terminal through an electric wire, the commutator connecting terminal is connected to the direct current motor through an electric wire, a motor shaft of the direct current motor is connected with the speed reducer through a flat key (spline), the speed reducer is connected with a gear flat key (spline), a gear is fixed through the end face of the transmission shaft, the direct current motor controls the motor shaft to rotate, and the gear is driven to rotate through the speed reducer.
According to the scheme, the device further comprises a matched cake clamping groove drill rod, and the matched cake clamping groove drill rod is connected with the cake clamping groove drill rod through a screw thread.
According to the scheme, the whole structure of the electric hydraulic jack is of a trapezoidal disc structure, a sleeve with a certain thickness is arranged in the center of the electric hydraulic jack, and the sleeve is used for adjusting the diameter of a central groove in the center of the electric hydraulic jack; the diameters of the cylindrical groove and the central groove are 1.2-1.5 times of the diameter of the cake clamping groove drill rod (the middle of the cylindrical groove and the central groove is ensured to enable the cake clamping groove drill rod to penetrate through the cylindrical groove and the central groove).
According to the scheme, the device further comprises a cushion fork, the cushion fork is used for clamping the round cake of the round cake clamping groove drill rod, four cylindrical supporting legs are arranged at the bottom of the electric hydraulic jack, the electric hydraulic jack controls the switch to control the cylindrical supporting legs to extend synchronously, and the round cake clamping groove drill rod is pulled out through the cushion fork by utilizing the generated counter force.
According to the scheme, the diameter of the hole wall formed by the twist drill through rotation is 1.5-2 times of the diameter of the round cake on the round cake clamping groove drill rod (the phenomenon that the hole wall generates larger side resistance due to hole shrinkage because the diameter of the round cake on the round cake clamping groove drill rod is too large is prevented); the gear pitch, the number of teeth and the size parameters are matched with the distance between adjacent round cakes on the round cake clamping groove drill rod, and the distance between the adjacent round cakes is 2-3 times of the gear pitch (the gear is prevented from being worn and out).
According to the scheme, the commutator connecting terminal is provided with three states of positive rotation, negative rotation and no rotation, and the direct current motor is controlled to be in positive rotation, negative rotation and no rotation by controlling the three states of the commutator.
The invention also provides a drilling and pulling method of the butterfly twist drill pulling tool, which comprises the following steps:
1) in the drilling process, the clamping structure is controlled by the clamping structure control switch handle to be screwed, field workers apply certain pressure on the upper part and rotate by using a steel handle, and the rotary drilling of the twist drill is driven by the round cake clamping groove drill rod;
2) when the drilling needs to be pulled out after the drilling reaches a certain depth, the cushion fork clamps the round cake on the round cake clamping groove drill rod and is placed at the upper end of the electric hydraulic jack, the electric hydraulic jack is controlled by the electric hydraulic jack control switch to lift, the cylindrical supporting legs extend synchronously, and the round cake clamping groove drill rod is lifted through the cushion fork by utilizing the generated counter force, so that the pulling-out function is realized;
3) in the process of pulling (lifting) the drill, when the twist drill at the bottom of the pulling hole is loosened, the pad fork is taken out, the motor is controlled by the commutator connecting terminal to drive the two side gears to respectively transmit force to the drill rod of the cake clamping groove in a mode that the left side gear rotates anticlockwise and the right side gear rotates clockwise, so that the continuous drill lifting and pulling functions are realized; after the twist drill at the bottom of the round cake clamping groove drill rod is lifted to the upper end of the electric hydraulic jack, the pad fork is inserted into the upper end of the cylindrical groove, and at the moment, field workers take down the soil carried by the twist drill for observation.
According to the scheme, in step 1), along with the process of creeping into deepening, when cake draw-in groove drilling rod height more than the ground is not enough, control clamping structure through clamping structure control switch handle loosens, directly take out steel handle, clamping structure control switch handle from the upper end, then pass through the screw thread with supporting cake draw-in groove drilling rod and be connected, last supporting cake draw-in groove drilling rod upper end passes through the clamping structure centre gripping and sets up in the middle recess department of the steel handle.
According to the scheme, in the drilling process in the step 1), when the vertical load provided manually is insufficient, the motor drives the gears on the two sides to respectively provide certain load in a mode of clockwise rotation of the left gear and anticlockwise rotation of the right gear.
According to the scheme, if once the twist drill at the bottom of the hole is pulled out, it is still difficult to lift the drill through step 3), when needing to be pulled out many times, once pull out the back, withdraw four supporting legs of the electric hydraulic jack, will fill up the round cake position on the round cake draw-in groove drilling rod that the fork blocked the electric hydraulic jack lower extreme, and repeat step 2) and realize pulling out in succession, until carrying out the drill in succession through step 3), after the twist drill at round cake draw-in groove drilling rod bottom is lifted to the electric hydraulic jack upper end, insert the pad fork in cylindrical groove upper end again and fix, the field worker takes off the soil that the twist drill carried at this moment and observes.
Compared with the prior art, the invention has the beneficial effects that:
1. the combined tool has the advantages that the drilling and pulling processes of the butterfly twist drill are combined, the combined tool has three functions of drilling, continuous pulling and automatic drill lifting, the drilling period is shortened, the combined transmission of the electric hydraulic jack and the motor gear is combined, a large amount of manpower is saved, the drilling efficiency and the drilling quality can be obviously improved, and the combined tool is simple to operate and convenient to carry and has better market application prospect;
2. the drilling process still selects a static pressure rotation method of the traditional twist drill, and when the manual applied load is not enough and the drilling is difficult, the motor can be controlled to cooperate with the gear to rotate and transfer force to pressurize the drill rod of the circular cake clamping groove; the pulling process is carried out through a hydraulic jack structure, along with the deepening of the drilling process, when the height above the ground of the drill rod is not enough, the matched rotary drill rod with the circular cake clamping groove can be directly connected with the drill rod with the circular cake clamping groove, and the problem that a rotary device at the upper part of the drill rod needs to be detached when the drill rod is added to the traditional twist drill each time in the prior art is solved;
3. when the traditional twist drill is used for lifting the drill, the traditional twist drill is basically completed by manpower, and the combined type tool basically realizes the automatic drill lifting function.
Drawings
FIG. 1 is a schematic view of a drilling process of a butterfly twist drill pull-out tool according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a process of pulling up and lifting a butterfly twist drill pulling tool according to an embodiment of the present invention;
in the figure, 1-a rectangular base, 2-an electric hydraulic jack, 3-an electric hydraulic jack control switch, 4-a cake clamping groove drill rod, 5-a steel tower structure, 6-a cylindrical groove, 7-a direct current motor, 8-a motor fixing device, 9-a gear, 10-a steel outer wrapping structure, 11-a steel handle, 12-a clamping structure, 13-a clamping structure control switch handle, 14-a commutator connecting terminal, 15-a cushion fork, 16-a twist drill and 17-a matched cake clamping groove drill rod.
Detailed Description
The technical scheme of the invention is described in detail in the following with reference to the attached drawings and examples.
Referring to fig. 1-2, the butterfly twist drill pulling tool comprises a rectangular base 1, an electric hydraulic jack 2, an electric hydraulic jack control switch 3, a round cake clamping groove drill rod 4, a steel tower structure 5, a cylindrical groove 6, a direct current motor 7, a motor fixing device 8, a gear 9, a steel outer wrapping structure 10, a steel handle 11, a clamping structure 12, a clamping structure control switch handle 13, a commutator connecting terminal 14, a cushion fork 15, a twist drill 16 and a matched round cake clamping groove drill rod 17; the drilling platform comprises a rectangular base 1, an electric hydraulic jack 2, a steel tower structure 5, a cylindrical groove 6 and a steel outer wrapping structure 10, wherein the centers of the rectangular base 1 and the electric hydraulic jack 2 are respectively provided with a central groove matched with the electric hydraulic jack 2, the center of the upper part of the steel tower structure 5 is welded with the cylindrical groove 6, a cake clamping groove drilling rod 4 sequentially penetrates through the cylindrical groove 6 of the steel tower structure 5, the central groove of the electric hydraulic jack 2 and the central groove of the rectangular base 1 from top to bottom, and the lower end of the cake clamping groove drilling rod 4 is welded and fixed with a twist drill 16; the electric hydraulic jack control switch 3 is connected with the electric hydraulic jack 2 through an electric wire (controls the electric hydraulic jack 2 to switch on and off); clamping grooves are formed in two sides of the rectangular base 1, supporting legs are arranged on the lower portion of the steel tower structure 5, the size of each clamping groove ensures that the supporting legs of the steel tower structure 5 can penetrate through the clamping grooves of the rectangular base 1, and the supporting legs penetrate into a soil layer to be fixed at a certain depth; the steel outer-wrapped structures 10 are arranged on the front side and the rear side (two layers, the front side and the rear side perpendicular to the paper surface) above the steel tower structure 5, the motor fixing device 8 is fixed between the front steel outer-wrapped structure and the rear steel outer-wrapped structure, and the direct current motor 7 is connected with a gear 9 through a flat key (spline) through the motor fixing device 8; the upper end of the round cake clamping groove drill rod 4 is clamped and arranged at a groove in the middle of the steel handle 11 through a clamping structure 12, and a clamping structure control switch handle 13 is used for controlling the clamping structure 12 to be screwed and loosened; the direct current power supply is connected to a commutator connecting terminal 14 through a wire, the commutator connecting terminal 14 is connected to the direct current motor 7 through a wire, the direct current motor 7 comprises a stator magnetic pole, a rotor (armature), a commutator, an electric brush, a shell, a bearing and other structures, the direct current motor 7 controls a motor shaft to rotate, and a gear 9 is driven to rotate through a speed reducer; the cushion fork 15 is used for clamping a round cake on the round cake clamping groove drill rod 4, the bottom of the electric hydraulic jack 2 is provided with four cylindrical supporting legs, the cylindrical supporting legs are controlled to extend synchronously through the electric hydraulic jack control switch 3, and the round cake clamping groove drill rod 4 is pulled out through the cushion fork 15 by utilizing the generated counter force.
Along with the process of creeping into deepening, when the height above the cake draw-in groove drilling rod 4 ground is not enough, control clamping structure 12 through clamping structure control switch handle 13 and loosen, with steel handle 11, clamping structure 12, clamping structure control switch handle 13 directly take out from cake draw-in groove drilling rod 4 upper end, then with supporting cake draw-in groove drilling rod 17 through the screw thread with cake draw-in groove drilling rod 4 is connected, last supporting cake draw-in groove drilling rod 17 upper end through clamping structure 12 centre gripping set up in steel handle 11 middle groove department.
The whole structure of the electric hydraulic jack 2 is a trapezoidal disc structure, a sleeve with a certain thickness is configured in the center of the electric hydraulic jack according to actual requirements, and the sleeve is used for adjusting the diameter of a central groove in the center of the electric hydraulic jack 2; the distance between the round cakes on the round cake clamping groove drill rod 4 is adjusted and optimized according to actual requirements (drilling depth and gear clamping tooth distance); the distance between the clamping teeth on the gear 9 can be adjusted and optimized according to actual requirements; the diameters of the cylindrical groove and the central groove are 1.2-1.5 times of the diameter of the cake clamping groove drill rod (4) (so that the cake clamping groove drill rod (4) can penetrate through the middle of the cylindrical groove and the central groove).
According to actual demand can adjust the optimization with fluted drill 16 for control its gyration formed pore wall diameter size, fluted drill 16 is greater than the diameter of cake on cake draw-in groove drilling rod 4 through gyration formed pore wall diameter, 1.5 ~ 2 times is preferred, and certain shrinkage cavity phenomenon can appear in the slightly soft stratum of soil property to some extent, prevents because cake draw-in groove drilling rod 4 cake diameter is too big, and the pore wall produces great side resistance because the shrinkage cavity. Can optimize the pitch of tooth, number of teeth, size isoparametric of gear 9 according to actual demand, adjust it and the adjacent cake distance of cake draw-in groove drilling rod 4 supporting, for preventing that gear wear from becoming invalid, adjacent cake distance can set up and hold 2 ~ 3 times pitch of tooth.
According to actual requirements, the commutator connecting terminal 14 is provided with three states (forward rotation, reverse rotation and no rotation), and the working mode of the direct current motor is controlled by controlling the three states of the commutator connecting terminal 14. The motor shaft of the direct current motor 7 is connected with a speed reducer through a flat key (spline), the speed reducer is connected with a gear 9 through a flat key (spline), and the gear 9 is fixed through the end face of a transmission shaft. The speed reducer can be adjusted according to actual requirements, so that the forward and reverse rotating speed of the gear 9 is controlled.
The drilling and pulling method of the butterfly twist drill pulling tool provided by the embodiment of the invention specifically comprises the following steps:
1) in the drilling process, the clamping structure control switch handle 13 is used for controlling the clamping structure 12 to be screwed, field workers apply certain pressure on the upper part and rotate by using the steel handle 11, and the rotary drilling of the twist drill 15 is driven by the round cake clamping groove drill rod 4; along with the deepening of the drilling process, when the height above the ground of the cake clamping groove drill rod 4 is not enough, the clamping structure 13 is controlled to be loosened through the clamping structure control switch handle 12, the steel handle 11, the clamping structure 12 and the clamping structure control switch handle 13 are directly taken out from the upper end, then the matched cake clamping groove drill rod 17 is connected with the cake clamping groove drill rod 4 through a screw thread, and finally the upper end of the matched cake clamping groove drill rod 17 is clamped and arranged at a middle groove of the steel handle 11 through the clamping structure 12, so that the problem that a rotary device at the upper part of the drill rod needs to be disassembled when the drill rod is added to a traditional twist drill in the current stage every time is solved; in the drilling process, when the vertical load provided by manpower is insufficient, the motor 7 can drive the gears 9 at two sides to rotate to provide a certain load, as shown in fig. 1, the left gear rotates clockwise, and the right gear rotates anticlockwise;
2) when the drilling needs to be pulled out after the drilling reaches a certain depth, a cushion fork 15 clamps a round cake (shown as the position of the No. I round cake) on a round cake clamping groove drill rod 4 and is arranged at the upper end of an electric hydraulic jack 2, the electric hydraulic jack 2 is controlled to lift through an electric hydraulic jack control switch 3, a cylindrical supporting leg extends synchronously, and the round cake clamping groove drill rod 4 is lifted through the cushion fork 15 by utilizing the generated counter force, so that the pulling-out function is realized;
3) in the process of pulling (lifting) the drill, when the twist drill 16 at the bottom of the pulling hole is loosened, the pad fork 15 is taken out, the motor 7 is controlled by the commutator connecting terminal 14 to drive the gears 9 at the two sides to rotate, as shown in fig. 2, the left gear rotates anticlockwise, the right gear rotates clockwise, and therefore transmission force is given to the round cake of the round cake clamping groove drill rod 4 through the gears 9, and the function of continuously pulling and pulling the drill is achieved; the required electric energy is provided by a storage battery (battery jar); after the twist drill 16 at the bottom of the round cake clamping groove drill rod 4 is lifted to the upper end of the electric hydraulic jack 2, the pad fork 15 is inserted into the upper end of the cylindrical groove 6 for fixing, and at the moment, field workers take down soil carried by the twist drill 16 for observation.
If the drill bit is loosened after one-time pulling, the drill is still difficult to lift through the step 3), and when multiple times of pulling are needed, after one-time pulling, the four cylindrical supporting legs of the electric hydraulic jack 2 are retracted, the pad fork 15 clamps the round cake (the position of No. 2 round cake) of the round cake clamping groove drill rod 4 at the lower end of the electric hydraulic jack, the step 2) is repeated to realize continuous pulling until the drill can be continuously lifted through the step 3), and after the twist drill 16 at the bottom of the round cake clamping groove drill rod 4 is lifted to the upper end of the electric hydraulic jack 2, the pad fork 15 is inserted into the upper end of the cylindrical groove 6 to be fixed, and at the moment, an external worker can take down the soil carried by the twist drill 15 to observe.
The combined tool has the functions of drilling, continuous pulling and automatic drill lifting, and solves the problem that a rotating device at the upper part of a drill rod needs to be disassembled when the drill rod is added in the traditional twist drill each time.
It should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Obvious variations or modifications to the present invention, which would be apparent to a person of ordinary skill in the art, would nevertheless fall within the scope of the present invention.
Claims (10)
1. A butterfly twist drill pulling tool is characterized by at least comprising a drilling platform, a round cake clamping groove drill rod, a direct current motor, a motor fixing device, a commutator connecting terminal, a gear, a steel handle, a clamping structure control switch handle and a twist drill; the drilling platform comprises five parts, namely a rectangular base, an electric hydraulic jack, a steel tower structure, a cylindrical groove and a steel outer packaging structure, wherein a central groove matched with the electric hydraulic jack is formed in the centers of the rectangular base and the electric hydraulic jack, the center of the upper part of the steel tower structure is welded with the cylindrical groove, a round cake clamping groove drilling rod sequentially penetrates through the cylindrical groove of the steel tower structure, the central groove of the electric hydraulic jack and the central groove of the rectangular base from top to bottom, and the lower end of the round cake clamping groove drilling rod is welded and fixed with a twist drill; the electric hydraulic jack control switch is connected with the electric hydraulic jack through an electric wire; clamping grooves are formed in two sides of the rectangular base, supporting legs are arranged at the lower part of the steel tower structure, and the supporting legs penetrate through the clamping grooves and are fixed in the soil layer; the steel outer wrapping structures are arranged on the front side and the rear side above the steel tower structure, the motor fixing device is fixed between the front steel outer wrapping structure and the rear steel outer wrapping structure, and the direct current motor is connected with the gear flat key through the motor fixing device; the upper end of the cake clamping groove drill rod is clamped and arranged at the middle groove of the steel handle through a clamping structure, and the clamping structure controls the switch handle to control the clamping structure to be screwed and loosened; the direct-current power supply is connected to the commutator connecting terminal through an electric wire, the commutator connecting terminal is connected to the direct-current motor through an electric wire, a motor shaft of the direct-current motor is connected with the speed reducer through a flat key, the speed reducer is connected with a gear flat key, a gear is fixed through the end face of the transmission shaft, the direct-current motor controls the motor shaft to rotate, and the gear is driven to rotate through the speed reducer.
2. The butterfly twist drill pulling tool of claim 1, further comprising a mating cake slot drill rod connected to the cake slot drill rod by a screw thread.
3. The butterfly twist drill pulling tool according to claim 1, wherein the electro-hydraulic jack structure is a trapezoidal disc structure as a whole, a sleeve with a certain thickness is arranged in the center of the electro-hydraulic jack, and the sleeve is used for adjusting the diameter of a central groove in the center of the electro-hydraulic jack; the diameters of the cylindrical groove and the central groove are 1.2-1.5 times of the diameter of the round cake clamping groove drill rod.
4. The butterfly twist drill pulling tool according to claim 1, further comprising a pad fork for clamping a round cake of the round cake clamping groove drill rod, wherein four cylindrical supporting legs are arranged at the bottom of the electro-hydraulic jack, the electro-hydraulic jack controls the switch to control the cylindrical supporting legs to extend synchronously, and the round cake clamping groove drill rod is pulled through the pad fork by using the generated counter force.
5. The butterfly twist drill pulling tool according to claim 1, wherein the diameter of the hole wall formed by the twist drill through rotation is 1.5 to 2 times of the diameter of the round cake on the round cake clamping groove drill rod; the gear pitch, the number of teeth and the size parameters are matched with the distance between adjacent round cakes on the round cake clamping groove drill rod, and the distance between the adjacent round cakes is 2-3 times of the gear pitch.
6. The butterfly twist drill pulling tool according to claim 1, wherein the commutator connecting terminal has three states of forward rotation, reverse rotation and no rotation, and the three states of the commutator are controlled to control the direct current motor to rotate forward, reverse and no rotation.
7. A method of drill extraction of a butterfly twist drill extraction tool according to any one of claims 1 to 6, comprising the steps of:
1) in the drilling process, the clamping structure is controlled by the clamping structure control switch handle to be screwed, field workers apply certain pressure on the upper part and rotate by using a steel handle, and the rotary drilling of the twist drill is driven by the round cake clamping groove drill rod;
2) when the drilling needs to be pulled out after the drilling reaches a certain depth, the cushion fork clamps the round cake on the round cake clamping groove drill rod and is placed at the upper end of the electric hydraulic jack, the electric hydraulic jack is controlled by the electric hydraulic jack control switch to lift, the cylindrical supporting legs extend synchronously, and the round cake clamping groove drill rod is lifted through the cushion fork by utilizing the generated counter force, so that the pulling-out function is realized;
3) in the pulling process, after the twist drill at the bottom of the pulling hole is loosened, the pad fork is taken out, the motor is controlled by the commutator connecting terminal to drive the two side gears to respectively transmit force to the drill rod of the cake clamping groove in a mode that the left side gear rotates anticlockwise and the right side gear rotates clockwise, and the continuous drilling pulling function is realized; after the twist drill at the bottom of the round cake clamping groove drill rod is lifted to the upper end of the electric hydraulic jack, the pad fork is inserted into the upper end of the cylindrical groove, and at the moment, field workers take down the soil carried by the twist drill for observation.
8. The method for pulling a butterfly type twist drill according to claim 7, wherein in step 1), when the height above the ground of the cake clamping groove drill rod is not enough as the drilling process deepens, the clamping structure is controlled to be loosened by the clamping structure control switch handle, the steel handle, the clamping structure and the clamping structure control switch handle are directly taken out from the upper end, then the matched cake clamping groove drill rod is connected with the cake clamping groove drill rod through a screw thread, and finally the upper end of the matched cake clamping groove drill rod is clamped and arranged at the middle groove of the steel handle through the clamping structure.
9. The method for pulling the butterfly type twist drill is characterized in that in the step 1), when the vertical load provided manually is insufficient during the drilling process, the motor drives the two side gears to provide certain load respectively according to the clockwise rotation of the left side gear and the anticlockwise rotation of the right side gear.
10. The method for pulling up the butterfly type twist drill pulling tool in the drilling process according to claim 7, wherein if the twist drill at the bottom of the hole is loosened after one pulling up, the drill is difficult to pull up through the step 3), and when the pulling up needs to be performed for a plurality of times, after one pulling up, the four supporting legs of the electro-hydraulic jack are retracted, the pad fork is clamped at the position of the round cake on the round cake clamping groove drill rod at the lower end of the electro-hydraulic jack, the step 2) is repeated to realize continuous pulling up until the continuous pulling up is performed through the step 3), after the twist drill at the bottom of the round cake clamping groove drill rod is lifted up to the upper end of the electro-hydraulic jack, the pad fork is inserted at the upper end of the cylindrical groove to be fixed, and at the moment, field workers take down the soil carried by the twist drill to observe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110270377.9A CN113006723B (en) | 2021-03-12 | 2021-03-12 | Butterfly type twist drill pulling tool and drilling pulling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110270377.9A CN113006723B (en) | 2021-03-12 | 2021-03-12 | Butterfly type twist drill pulling tool and drilling pulling method thereof |
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| CN113006723A CN113006723A (en) | 2021-06-22 |
| CN113006723B true CN113006723B (en) | 2022-05-24 |
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Citations (8)
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