CN113700433B - Self-generating wind pressure electromagnetic combined impact autorotation type air hammer and use method thereof - Google Patents
Self-generating wind pressure electromagnetic combined impact autorotation type air hammer and use method thereof Download PDFInfo
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- CN113700433B CN113700433B CN202111057131.XA CN202111057131A CN113700433B CN 113700433 B CN113700433 B CN 113700433B CN 202111057131 A CN202111057131 A CN 202111057131A CN 113700433 B CN113700433 B CN 113700433B
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000010248 power generation Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 24
- 210000001503 joint Anatomy 0.000 claims description 23
- 238000004804 winding Methods 0.000 claims description 17
- 230000006698 induction Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract 4
- 239000007789 gas Substances 0.000 description 15
- 238000005553 drilling Methods 0.000 description 10
- 238000007789 sealing Methods 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000003209 petroleum derivative Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/04—Electric drives
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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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
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- Geochemistry & Mineralogy (AREA)
- Wind Motors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides a self-generating wind pressure electromagnetic combined impact autorotation type air hammer and a using method thereof, the self-generating wind pressure electromagnetic combined impact autorotation type air hammer comprises a power generation assembly, a piston assembly, a rotating assembly and a drill bit assembly, wherein the power generation assembly comprises an upper joint, an intermediate joint, a turbine shaft, an insulation square box, a generator, an elastic pad and positioning blocks, wherein the upper joint is connected with the intermediate joint through threads, the two positioning blocks are arranged in the intermediate joint, the insulation square box is positioned in a square cavity formed in the two positioning blocks, the elastic pad is arranged at the bottom in the insulation square box, the upper part of the elastic pad is provided with the generator, the generator is fixed in the insulation square box through a cylinder, and the turbine shaft is connected with the generator. The invention makes the drill bit receive larger impact force to assist in breaking rock, the hybrid stepping motor type rotating component provides larger torque to rotate the drill bit, reduces energy loss when high-pressure gas is used as rotating power, and accurately controls the rotating angle of the drill bit.
Description
Technical Field
The invention belongs to the technical field of petroleum and natural gas drilling equipment manufacturing, relates to a petroleum and natural gas drilling tool, and particularly relates to a self-generating wind pressure electromagnetic combined impact autorotation type air hammer and a use method thereof.
Background
The air drilling technology adopts an air hammer to impact and break rock by means of high-pressure air to provide power, and the air hammer drilling combines rotary drilling and impact drilling, so that the drilling speed can be greatly improved. The air hammer can not rotate at first and is driven to rotate by the rotary table of the drilling machine, so that the application effect is good in a vertical well, but the application effect is not ideal in a horizontal well and a directional well due to high friction resistance of the well wall.
In order to solve the problems, the structural function of the air hammer is improved and innovated to enable the air hammer to rotate, for example, a directional rotary air hammer disclosed in China patent literature (publication number: CN102337839A; publication day: 2012, month 2 and day 1) mainly comprises an isolation mechanism, a gas distribution rotary mechanism, a piston assembly and a drill bit, wherein the isolation mechanism comprises an upper joint, a rotary joint, a check valve, a spring seat placement valve core, a spring seat and a shell; the air distribution rotating mechanism is arranged in the isolating mechanism and comprises a rotating shaft, an air distribution seat, an air inlet pipe, a rear air cavity and a front air cavity, the top surface of the air distribution seat is fixedly connected with a spring seat, a plurality of serrated convex cones are arranged on the bottom surface in an annular array mode, the upper end of the air inlet pipe is connected to the air distribution seat, the lower end of the air inlet pipe extends into the piston assembly, and an air inlet is arranged on the air inlet pipe; the piston assembly is arranged in the isolation mechanism and comprises a piston, a clamping ring and a clamping ring half, a plurality of convex cones matched with the serrated convex cones on the bottom surface of the air distribution seat are arranged on the top surface of the piston in an annular array mode, and air inlets which are respectively led to the rear air cavity and the front air cavity are radially arranged on the piston; the drill bit is connected to the spline joint through a spline, and the tail part of the drill bit is connected with a drill tail pipe. The rotary function is that the rotary joint, the rotary shaft, the spring seat, the air distribution seat, the piston and other components jointly act, the piston interacts with the serrated convex cone on the bottom surface of the air distribution seat in the ascending process and generates certain circumferential force, so that the air distribution seat rotates in a specific direction to drive the rotary shaft and the shell to rotate, the shell interacts with the spline structure to enable the drill bit to generate rotary motion, automatic pressurization and change of the angle of the drill bit are realized, the air hammer is enabled to output larger torque while providing the impact function, the drilling requirements of well conditions such as a horizontal well, a directional well and a long branch well are met, and the drilling engineering progress of petroleum and natural gas wells is accelerated.
Although the autorotation air hammers can not only provide impact but also autorotate to drill, the rotation of the autorotation air hammers drives mechanical parts to rotate through high-pressure gas, so that energy loss caused by large friction among the mechanical parts is large.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a self-generating wind pressure electromagnetic combined impact autorotation type air hammer and a use method thereof.
The invention adopts the following technical scheme:
the utility model provides a from electricity generation wind pressure electromagnetism combination impact rotation formula air hammer, includes power generation subassembly, piston assembly, rotating assembly, drill bit subassembly.
The power generation assembly comprises an upper joint, a rubber sealing ring, a middle joint, a turbine shaft, an insulating square box, a generator, an elastic pad, a positioning block and a screw. The upper joint is connected with the middle joint through threads, and the two positioning blocks are arranged in the middle joint. The insulating square box is positioned in a square cavity formed in the two positioning blocks, the bottom in the insulating square box is an elastic pad, the upper part of the elastic pad is provided with a generator, and the generator is fixed in the insulating square box through a cylinder.
The center of the upper joint is a through hollow channel, the lower part of the upper joint is an expanded channel, the turbine is positioned in an expanded cavity at the lower part of the upper joint, and the turbine is connected with the generator through a turbine shaft.
The outermost part of the positioning block is arc-shaped, the inside of the positioning block is rectangular space, the upper top surface of the positioning block is an angled inclined surface, and the positioning block is radially provided with an annular through hole and a screw hole with a countersunk hole.
The cylinder, the insulating square box and the positioning block are all provided with through holes, and the wires of the generator are led out from the through holes.
And gaps among the middle joint, the positioning block and the insulating square box form an air inlet channel.
The piston assembly comprises a piston, a first gasket, a second gasket, a permanent magnet sleeve and a locking sleeve, wherein the first gasket is arranged at a step of the piston and positioned through the step of the piston, the permanent magnet sleeve is arranged at the lower side of the first gasket, the second gasket is arranged at the lower side of the permanent magnet sleeve, and the locking sleeve is arranged at the lower side of the second gasket.
The piston is installed in the inner cylinder, the inner cylinder is installed in the outer cylinder, the guide sleeve is installed below the inner cylinder, a coil is wound on the middle of the outer cylinder through step positioning, a gas distribution seat is installed above the piston, a spring is arranged in the upper portion of the gas distribution seat, and a check valve is arranged at the top of the gas distribution seat.
The outer cylinder is arranged at the lower part of the middle joint, the center of the middle joint is a through channel, two ends of the middle joint are enlarged cavities, the cavity at the upper part is matched with the enlarged cavity at the lower part of the upper joint (the inner diameters of the cavities are the same), and the upper part of the air distribution seat is arranged in the cavity at the lower part of the middle joint.
The rotary assembly comprises a stator sleeve, a stator core, a coil winding, a bearing, a sealing ring, a rotor transmission sleeve, a permanent magnet and a rotor core, wherein the stator sleeve is connected and locked with an outer cylinder through threads, the stator core is fixed on the stator sleeve, the stator core is provided with the coil winding, the rotor core is positioned inside the rotor transmission sleeve, the permanent magnet is positioned in the middle of the rotor core, the stator sleeve is connected with the rotor transmission sleeve in a matched manner through the bearing, and the rotor transmission sleeve is connected with a drill bit.
The stator core surface is equipped with the logical groove that is used for winding coil winding, logical groove evenly distributed is on the stator core coaxial line with the stator cover.
The inner side of the rotor core is provided with teeth which are uniformly distributed along the circumference and are staggered by a distance of half of a tooth pitch with teeth formed between two through grooves of the stator core.
The gap between the rotor core and the stator core constitutes an air gap.
The drill bit assembly comprises a drill bit, a half clamping ring, a lower joint and an anti-drop joint, wherein the drill bit is connected with a rotor transmission sleeve through a spline, the half clamping ring is positioned at a step of an outer cylinder through a thinner end of the half clamping ring, the lower joint is connected with the outer cylinder through threads to clamp the half clamping ring, the half clamping ring clamps the drill bit through the steps, and the anti-drop joint is connected and locked with the drill bit through threads.
The power supply wire is arranged in the outer cylinder, the sensor I is arranged on the coil, the sensor II is arranged on the control system, and the control system is arranged on the stator sleeve.
The application method of the self-generating wind pressure electromagnetic combined impact self-rotation type air hammer comprises the steps that high-pressure gas enables a turbine to rotate through the turbine, power is transmitted to a generator through a turbine shaft, the generator converts mechanical energy into electric energy, and then the electric energy can be used for impact and rotation of the air hammer; when the high-pressure gas pushes the check valve to enter the gas distribution seat and the inner cylinder, the sensor pushing the piston to move downwards to the inside of the outer cylinder senses that the permanent magnet sleeve on the piston completely enters the coil wound in the outer cylinder, the control system electrifies the coil wound in the outer cylinder, the induction magnetic field generated by the coil enables the permanent magnet sleeve to receive strong downward magnetic force, and the piston is driven to guide the impact drill bit through the guide sleeve with larger power.
When the sensor senses that the piston collides with the drill bit and enters a return stage, the control system supplies pulse current to a coil winding on a stator core of the rotating assembly, each pulse controls the rotor core to rotate by a fixed angle, the rotor core is fixed on a rotor transmission sleeve, the rotor transmission sleeve drives the drill bit to rotate, and the rotation angle of the drill bit can be controlled through the current pulse times.
The invention has the beneficial effects that:
compared with the existing autorotation type air hammer, the invention adjusts the autorotation type air hammer structure, adds a power generation mechanism and an electromagnetic propulsion device, leads the piston to bear the resultant force of the electromagnetic propulsion force and the high-pressure gas propulsion force which are larger than the high-pressure gas propulsion force, leads the drill bit to bear larger impact force to assist in breaking rock, leads the drill bit to rotate by providing very large torque by the rotating component of the hybrid stepping motor, not only avoids the energy loss caused by larger friction caused by the rotation of the mechanical component driven by the high-pressure gas, but also can accurately control the rotation angle of the drill bit.
Compared with a directional rotary air hammer with the publication number of CN102337839A, the rotary function of the invention adopts a hybrid stepping motor, when the sensor senses that the piston is impacted on the drill bit and enters a return stage, the control system supplies pulse current to the coil windings on the stator iron core of the rotary assembly, each pulse controls the rotor iron core to rotate by a fixed angle, the rotor iron core is fixed on the rotor transmission sleeve, and the rotor transmission sleeve drives the drill bit to rotate, thereby avoiding larger energy loss caused by the rotation friction of the mechanical component driven by high-pressure gas and accurately controlling the rotation angle of the drill bit.
The invention has the advantages of simple structure, high reliability, strong practicability and low manufacturing cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a part of the enlarged structure of the portion A shown in FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the structure of the invention in the C-direction cut-away view shown in FIG. 2;
FIG. 4 is a schematic view of a part of the enlarged structure of the portion B shown in FIG. 1 according to the present invention;
FIG. 5 is a schematic view of the structure of the invention in the D-cut direction shown in FIG. 4;
FIG. 6 is a schematic view of a partial enlarged structure of the E portion shown in FIG. 1 according to the present invention;
in the figure: the device comprises a 1-upper joint, a 2-turbine, a 3-turbine shaft, a 4-rubber sealing ring, a 5-insulating square box, a 6-through hole, a 7-cylinder, 8-screws, a 9-generator, a 10-elastic pad, a 11-positioning block, a 12-middle joint, a 13-check valve, a 14-spring, a 15-valve seat, a 16-inner cylinder, a 17-piston, a 18-guide sleeve, a 19-first gasket, a 20-permanent magnet sleeve, a 21-coil, a 22-second gasket, a 23-locking sleeve, a 24-stator sleeve, a 25-bearing, a 26-rotor core, a 27-permanent magnet, a 28-stator core, a 29-coil winding, a 30-sealing ring, a 31-rotor transmission sleeve, a 32-outer cylinder, a 33-drill, a 34-air inlet channel, a 35-through slot, a 36-air gap, a 37-power supply wire, a 38-sensor I, a 39-sensor II, a 40-control system, a 41-half-clasp, a 42-lower joint and a 43-drop-proof joint.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in figures 1-6, the self-generating wind pressure electromagnetic combined impact autorotation type air hammer comprises a power generation assembly, a piston assembly, a rotating assembly and a drill bit assembly.
The power generation assembly comprises an upper joint 1, a rubber sealing ring 4, an intermediate joint 12, a turbine 2, a turbine shaft 3, an insulating square box 5, a generator 9, an elastic pad 10, a positioning block 11 and a screw 8. The upper joint 1 is connected with the middle joint 12 through threads, a rubber sealing ring 4 is arranged between the upper joint 1 and the middle joint 12, two positioning blocks 11 are arranged in the middle joint 12 and positioned through steps of the middle joint 12, and then locked and fixed through screws 8. The insulating square box 5 is positioned in a square cavity formed by the interiors of the two positioning blocks 11, the bottom in the insulating square box 5 is provided with an elastic pad 10, the upper part of the elastic pad 10 is provided with a generator 9, and the generator 9 is fixed in the insulating square box 5 through a cylinder 7. The center of the upper joint 1 is a through hollow channel, the channel at the lower part is in an expansion shape, the turbine 2 is positioned in an expansion cavity at the lower part of the upper joint 1, and the turbine 2 is connected with the generator 9 through the turbine shaft 3.
The outermost part of the positioning block 11 is arc-shaped, the inside of the positioning block is rectangular space, the upper top surface is an angled inclined surface, and an annular through hole and a screw hole with a countersunk hole are formed in the radial direction.
Through holes 6 are formed in the cylinder 7, the insulating square box 5 and the positioning block 11, and wires of the generator 9 are led out of the through holes 6.
The gaps among the middle joint 12, the positioning block 11 and the insulating square box 5 form an air inlet channel 34.
The piston assembly comprises a piston 17, a first washer 19, a second washer 22, a permanent magnet sleeve 20 and a locking sleeve 23, wherein the first washer 19 is arranged at a step of the piston 17 and is positioned through the step of the piston 17, the permanent magnet sleeve 20 is arranged at the lower side of the first washer 19, the second washer 22 is arranged at the lower side of the permanent magnet sleeve 20, the locking sleeve 23 is arranged at the lower side of the second washer 22, and the locking sleeve 23 is locked through threads.
The piston 17 is installed in the inner cylinder 16, the inner cylinder 16 is installed in the outer cylinder 32, the guide sleeve 18 is installed below the inner cylinder 16, a coil 21 is wound in the middle of the outer cylinder 32, the coil 21 is positioned through an outer cylinder step, the air distribution seat 15 is installed above the piston 17, the spring 14 is arranged in the upper portion of the air distribution seat 15, and the check valve 13 is arranged at the top of the air distribution seat 15.
The outer cylinder 32 is installed in the lower part of the middle joint 12, the center of the middle joint 12 is a through channel, two ends of the middle joint 12 are enlarged cavities, the upper cavity is matched with the enlarged cavity (the inner diameter of the cavity is the same) in the lower part of the upper joint 1, and the upper part of the air distribution seat 15 is installed in the lower cavity of the middle joint 12.
The rotary assembly comprises a stator sleeve 24, a stator core 28, a coil winding 29, a bearing 25, a sealing ring 30, a rotor transmission sleeve 31, a permanent magnet 27, a rotor core 26 and an air gap 36, wherein the stator sleeve 24 is connected and locked with an outer cylinder 32 through threads, the stator core 28 is fixed on the stator sleeve 24, the stator core 28 is provided with the coil winding 29, the rotor core 26 is positioned in the rotor transmission sleeve 31, the permanent magnet 27 is positioned in the middle of the rotor core 26, the stator sleeve 24 is connected with the rotor transmission sleeve 31 in a matched manner through the bearing 25, the rotor transmission sleeve 31 is sealed by the sealing ring 30, and the rotor transmission sleeve 31 is connected with a drill bit 33.
The outer surface of the stator core 28 is provided with through slots 35 for winding the coil windings 29, and the through slots 35 are uniformly distributed on the stator core 28 coaxial with the stator sleeve 24.
The inner side of the rotor core 26 is provided with teeth which are uniformly distributed along the circumference and are staggered with the teeth formed between the two through grooves 35 of the stator core 28 by a distance of half a tooth pitch.
The gap between the rotor core 26 and the stator core 28 constitutes an air gap 36.
The drill bit assembly comprises a drill bit 33, a half clamping ring 41, a lower joint 42 and an anti-drop joint 43, wherein the drill bit 33 is connected with a rotor transmission sleeve 31 through a spline, the half clamping ring 41 is positioned at a step of an outer cylinder 32 through a thinner end of the half clamping ring 41, the lower joint 42 is connected with the outer cylinder 32 through threads to clamp the half clamping ring 41, the half clamping ring 41 clamps the drill bit 33 through the steps, and the anti-drop joint 43 is connected and locked with the drill bit 33 through threads.
The power supply wire 37 is mounted in the outer cylinder 32, the sensor I38 is mounted on the coil 21, the sensor II 39 is mounted on the control system 40, and the control system 40 is mounted on the stator casing 24.
The self-generating wind pressure electromagnetic combined impact autorotation type air hammer comprises the following using method: comprising
The high-pressure gas rotates through the turbine 2, power is transmitted to the generator 9 through the turbine shaft 3, the generator 9 converts mechanical energy into electric energy, and then the electric energy can be used for impact and rotation of the air hammer; when the high-pressure gas pushes the check valve 13 to enter the gas distribution seat 15 and the inner cylinder 16, the piston 17 is pushed downwards, the sensor I38 moving into the outer cylinder 32 senses that all the permanent magnet sleeve 20 on the piston 17 enters the coil 21 wound in the outer cylinder 32, the control system 40 energizes the coil 21 wound in the outer cylinder 32, the induction magnetic field generated by the coil 21 enables the permanent magnet sleeve 20 to receive strong downward magnetic force, and the piston 17 is driven to guide the impact drill bit 33 through the guide sleeve 18 with larger power.
When the sensor II 39 senses that the piston 17 strikes the drill bit 33 and enters the return stage, the control system 40 supplies pulse current to the coil windings 29 on the stator core 28 of the rotating assembly, each pulse controls the rotor core 26 to rotate by a fixed angle, the rotor core 26 is fixed on the rotor transmission sleeve 31, the rotor transmission sleeve 31 drives the drill bit 33 to rotate, and the rotation angle of the drill bit 33 can be controlled through the current pulse times.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a from electricity generation wind pressure electromagnetism combination impact rotation formula air hammer, includes power generation component, piston assembly, rotating assembly, drill bit subassembly, its characterized in that:
the power generation assembly comprises an upper joint, an intermediate joint, a turbine shaft, an insulating square box, a generator, an elastic pad and positioning blocks, wherein the upper joint is connected with the intermediate joint through threads, the two positioning blocks are installed in the intermediate joint, the insulating square box is located in a square cavity formed in the two positioning blocks, the elastic pad is arranged at the bottom of the insulating square box, the generator is installed at the upper part of the elastic pad, the generator is fixed in the insulating square box through a cylinder, and the turbine is connected with the generator through the turbine shaft;
the center of the upper joint is a through hollow channel, the channel at the lower part is in an expansion shape, and the turbine is positioned in the expansion large cavity at the lower part of the upper joint;
the piston assembly comprises a piston, a first gasket, a second gasket, a permanent magnet sleeve and a locking sleeve, wherein the first gasket is arranged at a step of the piston and positioned through the step of the piston, the permanent magnet sleeve is arranged at the lower side of the first gasket, the second gasket is arranged at the lower side of the permanent magnet sleeve, the locking sleeve is arranged at the lower side of the second gasket, the piston is arranged in an inner cylinder, the inner cylinder is arranged in an outer cylinder, the guiding sleeve is arranged below the inner cylinder, a coil is wound at the middle part of the outer cylinder through the step positioning, a gas distribution seat is arranged above the piston, a spring is arranged in the upper part of the gas distribution seat, and a check valve is arranged at the top of the gas distribution seat;
the outer cylinder is arranged at the lower part of the middle joint, the center of the middle joint is a through channel, two ends of the middle joint are enlarged cavities, the upper cavity is matched with the enlarged cavity at the lower part of the upper joint, and the upper part of the air distribution seat is arranged in the lower cavity of the middle joint;
the rotary assembly comprises a stator sleeve, a stator core, a coil winding, a bearing, a rotor transmission sleeve, a permanent magnet and a rotor core, wherein the stator sleeve is connected and locked with an outer cylinder through threads, the stator core is fixed on the stator sleeve and is provided with the coil winding, the rotor core is positioned inside the rotor transmission sleeve, the permanent magnet is positioned in the middle of the rotor core, the stator sleeve is connected with the rotor transmission sleeve in a matched manner through the bearing, and the rotor transmission sleeve is connected with a drill bit;
the drill bit assembly comprises a drill bit, a half clamping ring, a lower joint and an anti-drop joint, wherein the drill bit is connected with a rotor transmission sleeve through a spline, the half clamping ring is positioned at a step of an outer cylinder through a thinner end of the half clamping ring, the lower joint is connected with the outer cylinder through threads to clamp the half clamping ring, the half clamping ring clamps the drill bit through the steps, and the anti-drop joint is connected and locked with the drill bit through threads.
2. The self-generating wind pressure electromagnetic combined impact self-rotation type air hammer according to claim 1, wherein the outermost part of the positioning block is arc-shaped, the inside of the positioning block is rectangular space, the upper top surface is an angled inclined surface, and the positioning block is radially provided with an annular through hole and a screw hole with a countersunk hole.
3. The self-generating wind pressure electromagnetic combined impact self-rotation type air hammer according to claim 1, wherein the cylinder, the insulating square box and the positioning block are all provided with through holes, and the wires of the generator are led out from the through holes.
4. The self-generating wind pressure electromagnetic combined impact self-rotating air hammer according to claim 1, wherein gaps among the middle joint, the positioning block and the insulating square box form an air inlet channel.
5. The self-generating wind pressure electromagnetic combined impact self-rotation type air hammer according to claim 1, wherein through grooves for winding coil windings are formed in the outer surface of the stator core, the through grooves are uniformly distributed on the stator core coaxial with the stator sleeve, teeth which are uniformly distributed on the circumference are arranged on the inner side of the rotor core, and the teeth formed between the through grooves of the stator core are staggered by a distance of half a tooth pitch.
6. The self-generating wind pressure electromagnetic combined impact self-rotating air hammer of claim 1, wherein a gap between the rotor core and the stator core forms an air gap.
7. The self-generating wind pressure electromagnetic combined impact self-rotating air hammer according to claim 1, wherein the power supply wire is installed in the outer cylinder, the sensor I is installed on the coil, the sensor II is installed on the control system, and the control system is installed on the stator sleeve.
8. A method for applying the self-generating wind pressure electromagnetic combined impact autorotation air hammer as claimed in any one of claims 1 to 7 is characterized in that,
step 1, enabling the high-pressure gas to pass through a turbine to enable the turbine to rotate, then transmitting power to a generator through a turbine shaft, and enabling the generator to convert mechanical energy into electric energy, wherein the electric energy is used for impact and rotation of an air hammer;
step 2, when the high-pressure gas pushes the check valve to enter the gas distribution seat and the inner cylinder, the sensor pushing the piston to move downwards to the inside of the outer cylinder senses that the permanent magnet sleeve on the piston completely enters the coil wound in the inside of the outer cylinder, the control system electrifies the coil wound in the inside of the outer cylinder, the induction magnetic field generated by the coil enables the permanent magnet sleeve to be subjected to downward magnetic force, and the piston is driven to guide the impact drill bit through the guide sleeve with larger power;
and 3, when the sensor senses that the piston impacts the drill bit and enters a return stage, the control system supplies pulse current to a coil winding on a stator core of the rotating assembly, each pulse controls the rotor core to rotate by a fixed angle, and the rotor core is fixed on a rotor transmission sleeve which drives the drill bit to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111057131.XA CN113700433B (en) | 2021-09-09 | 2021-09-09 | Self-generating wind pressure electromagnetic combined impact autorotation type air hammer and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111057131.XA CN113700433B (en) | 2021-09-09 | 2021-09-09 | Self-generating wind pressure electromagnetic combined impact autorotation type air hammer and use method thereof |
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| CN113700433A CN113700433A (en) | 2021-11-26 |
| CN113700433B true CN113700433B (en) | 2023-05-12 |
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| CN117513988B (en) * | 2023-12-13 | 2024-08-23 | 西南石油大学 | Combined drill bit based on electric pulse rock breaking technology |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| AU5565286A (en) * | 1985-04-05 | 1986-10-09 | Gas Research Institute | Steering and control system for percussion boring tools |
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