CN111103052B - Three-dimensional vibration sensor based on friction nano generator and electromagnetic induction - Google Patents
Three-dimensional vibration sensor based on friction nano generator and electromagnetic induction Download PDFInfo
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- CN111103052B CN111103052B CN201911379336.2A CN201911379336A CN111103052B CN 111103052 B CN111103052 B CN 111103052B CN 201911379336 A CN201911379336 A CN 201911379336A CN 111103052 B CN111103052 B CN 111103052B
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- friction nano
- copper electrode
- electromagnetic induction
- ptfe film
- power generation
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- 230000005674 electromagnetic induction Effects 0.000 title claims abstract description 26
- 229910052802 copper Inorganic materials 0.000 claims abstract description 56
- 239000010949 copper Substances 0.000 claims abstract description 56
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 32
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 32
- 238000005553 drilling Methods 0.000 claims abstract description 31
- 238000010248 power generation Methods 0.000 claims abstract description 24
- 239000000725 suspension Substances 0.000 claims description 10
- 230000005856 abnormality Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000006698 induction Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 1
- 230000005288 electromagnetic effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
- H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention provides a three-dimensional vibration sensor based on a friction nano generator and electromagnetic induction, which comprises a shell, an electromagnetic induction device, a first friction nano power generation device and four second friction nano power generation devices, wherein the electromagnetic induction device comprises a columnar magnet and a copper coil; the first friction nano power generation device comprises a first PTFE film and a first copper electrode, wherein the first copper electrode is fixed on the lower surface of the columnar magnet, and the first PTFE film is positioned right below the first copper electrode; each second friction nano power generation device comprises a T-shaped collision column, an arc blade, a second PTFE film and a second copper electrode, wherein the T-shaped collision column is connected with the arc blade, and the second PTFE film and the second copper electrode are oppositely arranged. The invention has the beneficial effects that: according to the invention, the vibration frequency of the worm gear drilling tool in the three-dimensional direction is measured through the first friction nano power generation device and the four second friction nano power generation devices respectively, so that the worm gear drilling tool is monitored in real time, and the abnormality can be found in time.
Description
Technical Field
The invention relates to the technical field of three-dimensional vibration sensors, in particular to a three-dimensional vibration sensor based on a friction nano generator and electromagnetic induction.
Background
With the exhaustion of surface energy, the demands of people for deep resources are increasingly strong, and the common screw drilling tool is gradually unable to be used for deep well drilling. The turbine drilling tool has gradually replaced the traditional screw drilling tool because of its excellent performance in high temperature and high pressure environments in deep wells. When the turbine drilling tool works in a deep well, the timely collection of the vibration signals of the drilling tool is beneficial to monitoring the underground working condition information of the drilling tool in real time, finding out the abnormality in the working process in time, and adjusting the drilling tool in time to maintain the excellent working state of the drilling tool.
For the vibration signal of the turbine drill, a sensor is typically used to collect the signal. When the traditional sensor is used in a deep well, on one hand, the traditional sensor cannot work in high-temperature and high-pressure environments for a long time; on the other hand, the conventional sensor has a power supply problem that the sensor needs to be powered by a circuit or a battery.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a three-dimensional vibration sensor based on a friction nano-generator and electromagnetic induction.
The embodiment of the invention provides a three-dimensional vibration sensor based on a friction nano generator and electromagnetic induction, which comprises a shell, and an electromagnetic induction device, a first friction nano generator and four second friction nano generators which are arranged in the shell, wherein the electromagnetic induction device comprises a columnar magnet and a copper coil, the columnar magnet can be movably and elastically connected to the shell, and the copper coil is fixed under the columnar magnet; the first friction nano power generation device comprises a first PTFE film and a first copper electrode, the first copper electrode is fixed on the lower surface of the columnar magnet, and a gap is reserved between the first PTFE film and the first copper electrode and is positioned right below the first copper electrode; fourth second friction nanometer power generation facility evenly distributed is in the casing, and every second friction nanometer power generation facility all includes that the T type hits post, circular arc blade, second PTFE film and second copper electrode, the T type hits the post and is located around the column magnet, just the T type hits the post and connects circular arc blade, the second PTFE film pastes on the outer arc face of circular arc blade, the second copper electrode is circular-arcly, just the second copper electrode is installed on the shells inner wall, the second PTFE film with the second copper electrode sets up relatively and its with leave the clearance between the second copper electrode, electromagnetic induction device is used for producing the electric current in order for three-dimensional vibration sensor supplies power, first friction nanometer power generation facility is used for measuring the vibration frequency of worm wheel drilling tool in vertical direction, fourth second friction nanometer power generation facility is used for measuring the vibration frequency of drilling tool in horizontal direction and front and back direction.
Further, the housing includes an inner shell and an outer shell, the outer shell being nested outside the inner shell and the outer shell being located below the inner shell.
Further, the big end of each T-shaped collision column is close to the columnar magnet, and the other end of each T-shaped collision column penetrates through the inner shell to be connected to the inner arc surface of the arc blade.
Further, a reset spring is sleeved outside the T-shaped collision column, and the reset spring is located between the big end of the T-shaped collision column and the inner shell.
Further, the inner shell comprises an upper end cover and a lower end cover, a suspension spring is arranged below the upper end cover, one end of the suspension spring is fixed on the upper end cover, the other end of the suspension spring is connected with a magnet seat, and the columnar magnet is fixed on the magnet seat.
Further, the longitudinal section of the lower end cover is I-shaped, the copper coil is wound on the lower end cover, and the first PTFE film is attached to the upper surface of the lower end cover and is located above the copper coil.
Further, the four arc blades are located between the inner shell and the outer shell, and the four arc blades are uniformly distributed.
The technical scheme provided by the embodiment of the invention has the beneficial effects that: according to the three-dimensional vibration sensor based on the friction nano generator and the electromagnetic induction, the vibration frequencies of the worm gear drilling tool in the vertical direction, the horizontal direction and the front and rear directions are measured through the first friction nano generator and the four second friction nano generators respectively, so that the worm gear drilling tool is monitored in real time, the three-dimensional vibration frequency of the worm gear drilling tool is obtained, so that abnormality can be found in time, and the worm gear drilling tool is adjusted; in addition, the three-dimensional vibration sensor can generate induction current through the electromagnetic induction device, so that power is supplied to the three-dimensional vibration sensor.
Drawings
Fig. 1 is a front view of a three-dimensional vibration sensor based on a friction nano-generator and electromagnetic induction according to the present invention.
Fig. 2 is a schematic cross-sectional view of A-A in fig. 1.
Fig. 3 is a schematic cross-sectional view of B-B of fig. 1.
In the figure: 1-shell, 11-inner shell, 12-outer shell, 13-upper end cover, 14-lower end cover, 2-electromagnetic induction device, 21-columnar magnet, 22-copper coil, 23-suspension spring, 24-magnet seat, 3-first friction nano power generation device, 31-first PTFE film, 32-first copper electrode, 4-second friction nano power generation device, 41-T type collision column, 42-arc blade, 43-second PTFE film, 44-second copper electrode and 45-reset spring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, an embodiment of the invention provides a three-dimensional vibration sensor based on a friction nano-generator and electromagnetic induction, which comprises a housing 1, and an electromagnetic induction device 2, a first friction nano-power generation device 3 and four second friction nano-power generation devices 4 which are arranged inside the housing 1.
The casing 1 comprises an inner casing 11 and an outer casing 12, the outer casing 12 is nested outside the inner casing 11, the outer casing 12 is positioned below the inner casing 11, the inner casing 11 comprises an upper end cover 13 and a lower end cover 14, the longitudinal section of the lower end cover 14 is I-shaped, and in the embodiment, the inner casing 11 and the outer casing 12 are both cylinders, so that the three-dimensional vibration sensor can be installed on a turbine drilling tool as a short section.
The electromagnetic induction device 2 includes a cylindrical magnet 21 and a copper coil 22, in this embodiment, the cylindrical magnet 21 is a cylinder, the cylindrical magnet 21 is movably and elastically connected to the housing 1, preferably, a suspension spring 23 is disposed below the upper end cover 13, one end of the suspension spring 23 is fixed to the upper end cover 13, the other end of the suspension spring is connected to a magnet seat 24, the cylindrical magnet 21 is fixed to the magnet seat 24, so that when the turbine drilling tool vibrates, the cylindrical magnet 21 also vibrates along with the cylindrical magnet, the copper coil 22 is fixed directly below the cylindrical magnet 21, in this embodiment, the copper coil 22 is wound on the lower end cover 14, and the electromagnetic induction device 2 is used for generating current to power the three-dimensional vibration sensor, specifically, when the cylindrical magnet 21 vibrates up and down, the magnetic flux in the copper coil 22 changes, so that an induction current is generated in the copper coil 22.
Referring to fig. 2 and 3, the first friction nano-generating device 3 includes a first PTFE film 31 and a first copper electrode 32, the first copper electrode 32 is fixed on the lower surface of the cylindrical magnet 21, the first PTFE film 31 is located under the first copper electrode 32, and a gap is left between the first PTFE film and the first copper electrode 32, the first PTFE film 31 is adhered to the upper surface of the lower end cap 14 and is located above the copper coil 22, in this embodiment, because the first PTFE film 31 and the first copper electrode 32 are different in electronegativity, when the cylindrical magnet 21 drives the first copper electrode 32 to collide with the first PTFE film 31, a first electric signal is generated, and the vibration frequency of the first electric signal pulse is identical to the vibration frequency of the cylindrical magnet 21, and at this time, the vibration frequency of the cylindrical magnet 21 is identical to the vibration frequency of the drilling tool, so that the first friction nano-generating device 3 can be used to measure the vibration frequency of the worm wheel in the vertical direction.
The fourth friction nano power generation devices 4 are uniformly distributed in the housing 1, each second friction nano power generation device 4 comprises a T-shaped collision post 41, an arc blade 42, a second PTFE film 43 and a second copper electrode 44, the T-shaped collision post 41 is located around the cylindrical magnet 21, the T-shaped collision post 41 is connected with the arc blade 42, in this embodiment, the big end of each T-shaped collision post 41 is close to the cylindrical magnet 21, the other end of each T-shaped collision post 41 passes through the inner housing 11 and is connected to the inner arc surface of the arc blade 42, a return spring 45 is sleeved outside the T-shaped collision post 41, and the return spring 45 is located between the big end of the T-shaped collision post 41 and the inner housing 11, in this embodiment, after the cylindrical magnet 21 collides with any T-shaped collision post 41, the impacted T-shaped collision post 41 is automatically reset under the action of the return spring 45 corresponding to the cylindrical magnet 21, so that each T-shaped collision post 41 can be continuously impacted by the cylindrical magnet 21.
In this embodiment, four circular arc blades 42 are located between the inner casing 11 and the outer casing 12, the four circular arc blades 42 are uniformly distributed, the second copper electrode 44 is circular arc-shaped, the second copper electrode 44 is mounted on the inner wall of the casing 1, the second PTFE film 43 is opposite to the second copper electrode 44, and a gap is left between the second PTFE film and the second copper electrode 44, and when the columnar magnet 21 impacts any T-shaped impact post 41 in the horizontal direction or the front-rear direction, the impacted T-shaped impact post 41 drives the second PTFE film 43 on the circular arc blade 42 to move radially, and impacts the second copper electrode 44 corresponding to the second PTFE film 43, so as to generate a second electric signal, and the vibration frequency of the second electric signal pulse in the horizontal direction or the front-rear direction is the same as that of the columnar magnet 21, and at the moment, the vibration frequency of the columnar magnet 21 in the horizontal direction is the same as that of the worm wheel, so that the vibration frequency of the fourth vibration frequency of the columnar magnet 21 in the horizontal direction is the front-rear direction can be used for measuring the vibration frequency of the drilling tool in the horizontal direction and the front-vibration device.
The working principle of the invention is as follows:
Before deep well drilling, the three-dimensional vibration sensor of the present invention is mounted on the turbine tool, when the turbine tool vibrates up and down, the cylindrical magnet 21 also vibrates up and down, so that the first copper electrode 32 and the first PTFE film 31 are in contact with each other, and the first electrical signal can be generated due to the difference of electronegativity of two materials, and the first electrical signal pulse is consistent with the vibration frequency of the turbine tool, so that the vibration frequency of the turbine tool in the vertical direction can be measured by the first friction nano-generating device 3, and at this time, due to the electromagnetic effect, when the cylindrical magnet 21 vibrates up and down, the copper coil 22 can generate induction current, so that the three-dimensional vibration sensor of the present invention can be powered by using the induction current; when the turbine drilling tool vibrates horizontally, the cylindrical magnet 21 also vibrates horizontally and impacts one of the T-shaped impact posts 41 around the cylindrical magnet, at this time, the T-shaped impact posts 41 drive the fan-shaped blades 41 connected with the T-shaped impact posts to move radially, so that the second PTFE film 43 on the fan-shaped blades 41 impacts the second copper electrode 44, and the second electrical signal is generated, and because four T-shaped impact posts 41 are installed around the cylindrical magnet 21, the vibration frequency of the turbine drilling tool in the horizontal direction and the front-rear direction can be measured, so that the vibration frequency of the turbine drilling tool in the three-dimensional direction can be obtained according to the working principle, and in addition, the electric quantity generated by the first friction nano power generation device 3 and the second friction nano power generation device 4 of the four three-dimensional tree can be collected, so as to supply power to the three-dimensional vibration sensor or other components of the invention.
According to the three-dimensional vibration sensor based on the friction nano generator and the electromagnetic induction, the vibration frequencies of the worm gear drilling tool in the vertical direction, the horizontal direction and the front and rear directions are measured through the first friction nano generator 3 and the four second friction nano generators 4 respectively, so that the worm gear drilling tool is monitored in real time, the three-dimensional vibration frequency of the worm gear drilling tool is obtained, and therefore anomalies can be found in time, and the worm gear drilling tool is adjusted; in addition, the invention can generate induction current through the electromagnetic induction device 2 so as to supply power for the three-dimensional vibration sensor.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the claimed application.
The embodiments described above and features of the embodiments herein may be combined with each other without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (4)
1. A three-dimensional vibration sensor based on friction nanometer generator and electromagnetic induction, its characterized in that: the electromagnetic induction device comprises a columnar magnet and copper coils, wherein the columnar magnet can be movably and elastically connected to the shell, and the copper coils are fixed under the columnar magnet; the first friction nano power generation device comprises a first PTFE film and a first copper electrode, the first copper electrode is fixed on the lower surface of the columnar magnet, and a gap is reserved between the first PTFE film and the first copper electrode and is positioned right below the first copper electrode; the fourth friction nano power generation devices are uniformly distributed in the shell, each second friction nano power generation device comprises a T-shaped collision column, an arc blade, a second PTFE film and a second copper electrode, the T-shaped collision column is positioned around the columnar magnet and connected with the arc blade, the second PTFE film is attached to the outer arc surface of the arc blade, the second copper electrode is arc-shaped, the second copper electrode is arranged on the inner wall of the shell, the second PTFE film is arranged opposite to the second copper electrode, a gap is reserved between the second PTFE film and the second copper electrode, the electromagnetic induction device is used for generating current to supply power for the three-dimensional vibration sensor, the first friction nano power generation device is used for measuring the vibration frequency of a worm gear drilling tool in the vertical direction, and the fourth friction nano power generation device is used for measuring the vibration frequency of the drilling tool in the horizontal direction and the front-back direction;
The shell comprises an inner shell and an outer shell, the outer shell is nested outside the inner shell, and the outer shell is positioned below the inner shell;
The T-shaped collision column is sleeved with a reset spring, and the reset spring is positioned between the big end of the T-shaped collision column and the inner shell;
The inner shell comprises an upper end cover and a lower end cover, a suspension spring is arranged below the upper end cover, one end of the suspension spring is fixed on the upper end cover, the other end of the suspension spring is connected with a magnet seat, and the columnar magnet is fixed on the magnet seat.
2. A three-dimensional vibration sensor based on friction nano-generator and electromagnetic induction as claimed in claim 1, wherein: the big end of each T-shaped collision column is close to the columnar magnet, and the other end of each T-shaped collision column penetrates through the inner shell and is connected to the inner arc surface of the arc blade.
3. A three-dimensional vibration sensor based on friction nano-generator and electromagnetic induction as claimed in claim 1, wherein: the longitudinal section of the lower end cover is I-shaped, the copper coil is wound on the lower end cover, and the first PTFE film is attached to the upper surface of the lower end cover and is located above the copper coil.
4. A three-dimensional vibration sensor based on friction nano-generator and electromagnetic induction as claimed in claim 1, wherein: the four arc blades are located between the inner shell and the outer shell, and the four arc blades are evenly distributed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911379336.2A CN111103052B (en) | 2019-12-27 | 2019-12-27 | Three-dimensional vibration sensor based on friction nano generator and electromagnetic induction |
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| CN201911379336.2A CN111103052B (en) | 2019-12-27 | 2019-12-27 | Three-dimensional vibration sensor based on friction nano generator and electromagnetic induction |
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| CN111103052B true CN111103052B (en) | 2024-06-14 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111628673B (en) * | 2020-05-08 | 2023-09-29 | 哈尔滨工程大学 | Multi-point nano friction power generation unit and device |
| CN111600438A (en) * | 2020-06-11 | 2020-08-28 | 重庆邮电大学 | Rotary pendulum type electromagnetic-friction composite generator |
| CN112924014B (en) * | 2021-01-29 | 2022-04-29 | 中国地质大学（武汉） | Self-powered downhole drilling tool vibration sensor based on friction nanometer generator |
| CN113124837B (en) * | 2021-03-10 | 2022-03-29 | 中国地质大学（武汉） | Self-powered sensor for measuring wave parameters |
| CN114838894B (en) * | 2022-03-17 | 2023-07-28 | 浙江大学 | Bridge real-time monitoring and early warning device based on foldable friction nanotechnology |
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| CN211425647U (en) * | 2019-12-27 | 2020-09-04 | 中国地质大学（武汉） | Three-dimensional vibration sensor based on friction nanometer generator and electromagnetic induction |
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| WO2014166286A1 (en) * | 2013-04-12 | 2014-10-16 | 纳米新能源（唐山）有限责任公司 | Power generation system using nanometer friction generator |
| KR101687820B1 (en) * | 2014-11-11 | 2017-01-02 | 이형백 | Vibration generator using self-oscillating power or torque-converted vibration force |
| KR101976540B1 (en) * | 2017-07-20 | 2019-05-09 | 국방과학연구소 | Sphere-shaped triboelectric nanogenerator |
| CN110454145A (en) * | 2019-07-12 | 2019-11-15 | 中国地质大学（武汉） | Geological drilling bottom hole multi frequency sensor based on friction nanometer power generator |
| CN110346593A (en) * | 2019-07-12 | 2019-10-18 | 中国地质大学（武汉） | Rotating cylindrical body formula turbodrill self-powered based on friction nanometer moves speed probe |
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| CN211425647U (en) * | 2019-12-27 | 2020-09-04 | 中国地质大学（武汉） | Three-dimensional vibration sensor based on friction nanometer generator and electromagnetic induction |
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| Lingrong Kong ; Yu Wang ; Chuan Wu ; Shuo Yang.Self-Powered Multifunctional Sensor of Positive Displacement Motor Based on Triboelectric Nanogenerator.《IEEE》.2021,全文. * |
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