LU102163B1 - Multifunctional rotating test bench for magnetically-excited vibration energy harvesting - Google Patents
Multifunctional rotating test bench for magnetically-excited vibration energy harvesting Download PDFInfo
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- LU102163B1 LU102163B1 LU102163A LU102163A LU102163B1 LU 102163 B1 LU102163 B1 LU 102163B1 LU 102163 A LU102163 A LU 102163A LU 102163 A LU102163 A LU 102163A LU 102163 B1 LU102163 B1 LU 102163B1
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 238000003306 harvesting Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 28
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- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000005284 excitation Effects 0.000 abstract description 30
- 230000001105 regulatory effect Effects 0.000 abstract description 12
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000002474 experimental method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/22—Measuring piezoelectric properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
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- General Physics & Mathematics (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention discloses a multifunctional rotating test bench for magnetically-excited vibration energy harvesting, including a base, a power mechanism, and a testing mechanism. The power mechanism is disposed on a front side of the top of the base. The testing mechanism is disposed on a rear side of the top of the base. The power mechanism includes a rack and a speed-regulating motor. A right side of the rack is connected to a speed regulator by using a bolt. An output end of the speed-regulating motor is fixedly connected to an input end of the speed regulator. The testing mechanism includes a first rotary disc, a second rotary disc, and a sliding bracket, and a left side of the rear side of the top of the base is fixedly connected to a first bracket and a second bracket. In the present invention, rotation speeds of the first rotary disc and the second rotary disc are regulated by the speed-regulating motor through cooperation of a direct-current motor, the speed regulator, the first belt wheel, the second belt wheel, and a transmission belt, thereby implementing multi-rotation speed excitation. A horizontal position of the sliding bracket is conveniently regulated through cooperation of the guide rail, the sliding bracket, and the fastening bolts, thereby implementing excitation energy harvesting tests of the experimental piezoelectric beam at different distances from a magnet.
Description
P100580LU00-U102163 | MULTIFUNCTIONAL ROTATING TEST BENCH FOR | MAGNETICALLY-EXCITED VIBRATION ENERGY HARVESTING {
BACKGROUND Technical Field | The present invention relates to the field of piezoelectric energy harvesting, and in | particular, to a multifunctional rotating test bench for magnetically-excited vibration energy | harvesting, | Related Art | In recent years, with the aggravation of global warming and the shortage of ! non-renewable resources such as oil, coal, and natural gas, seeking renewable and sustainable green energy has become an important challenge for the sustainable development of human civilization. À device that harvests energy from the environment by using a piezoelectric effect of a piezoelectric material is referred to as a piezoelectric energy harvester. Compared with electrostatic and electromagnetic energy harvesters that convert mechanical energy of vibrations into electrical energy, the piezoelectric energy harvester has prominent advantages such as high energy capture efficiency, high energy density, reliable operation, strong adaptability, no pollution, and low costs, has the best performance in extracting energy from environmental vibrations or noise, becomes an effective and good method of obtaining electrical energy from environmental mechanical energy, and attracts wide attention. Researches on piezoelectric energy harvesting gradually appear in teaching of graduate students and undergraduates, and production researches of some enterprises. There are some disadvantages in existing test benches used in experiments for researching magnetically-excited vibration energy harvesting. During the experiments, there are some disadvantages in terms of rotating magnetic excitation. A rotation speed cannot be well regulated. Moreover, an installation mode of a magnet for magnetic excitation is undiversified, and a single test bench cannot switch among various magnetic excitation modes. In addition, there are also some disadvantages in terms of collecting and testing multi-range magnetic excitation data.
SUMMARY | To overcome the disadvantages in the prior art, the present invention provides a | multifunctional rotating test bench for magnetically-excited vibration energy harvesting. The bench has advantages of being capable of implementing multi-rotation speed-regulation forU102163 | rotating magnetic excitation, helping regulation in a plurality of magnetic excitation modes, | and helping regulation at a plurality of excitation distances, and resolves the problems of | inconvenient regulation of a rotation speed of rotating magnetic excitation, inconvenient | regulation in the plurality of magnetic excitation modes, and inconvenient regulation at the | plurality of excitation distances caused by a device structure when an existing | multifunctional rotating test bench for magnetically-excited vibration energy harvesting is | used. | The multifunctional rotating test bench for magnetically-excited vibration energy | harvesting in the present invention includes a base, a power mechanism, and a testing | mechanism, where the power mechanism is disposed on a front side of the top of the base, { and the testing mechanism is disposed on a rear side of the top of the base; | the power mechanism includes a rack and a speed-regulating motor, the rack is fixedly | connected to the front side of the top of the base, a right side of the rack is connected to a | speed regulator by using a bolt, an output end of the speed-regulating motor is fixedly | connected to an input end of the speed regulator, an output end of the speed regulator is fixedly connected to a rotating rod, one end of the rotating rod passes through the rack, a first belt wheel is sleeved on a surface of a right end of the rotating rod, and an eccentric wheel is fixedly sleeved on a surface of a left end of the rotating rod; and the testing mechanism includes a first rotary disc, a second rotary disc, and a sliding | bracket, a left side of the rear side of the top of the base is fixedly connected to a first bracket and a second bracket, the tops of opposite sides of the first bracket and the second bracket are both movably connected to a rotating shaft, two ends of the rotating shaft respectively pass through the first bracket and the second bracket, opposite sides of the first rotary disc and the second rotary disc are connected to several connecting rods through screw threads, a left side of the first rotary disc is fixedly connected to a second belt wheel by using a disc, a right side of the second rotary disc is fixedly connected to a mounting disc, a right side of the mounting disc is provided with a mounting hole, a right side of the mounting disc is equipped with a magnet through the mounting hole, a right side of the rear side of the top of the base is fixedly connected to a guide rail, the bottom of the sliding bracket is movably connected to an interior of the guide rail, the top of a left side of the sliding bracket is provided with a sliding slot, an inner cavity of the sliding slot is movably connected to a positioning bolt, a nut is sleeved on a surface of the positioning bolt, both of two ends of the positioning bolt extend outside the sliding slot, one end of the positioning bolt is movably connected to a clamping plate by using the nut, two clamping plates are disposed, ahU102163 | experimental piezoelectric beam is clamped between the two clamping plates, and the | bottom of a left side of the first bracket is fixedly connected to a speed-measuring | piezoelectric beam by using a bolt. | Preferably, one side of the rack is provided with a notch, a mounting position of the | speed regulator is adjustable by using the notch and the bolt, the speed-regulating motor is | externally connected to a speed-regulating direct-current power supply, the first belt wheel is | detachable, and the speed-regulating motor is a direct-current motor. | Preferably, the top of the speed-measuring piezoelectric beam is in contact with a | surface of the eccentric wheel, a front side of the bottom of the speed-measuring | piezoelectric beam is movably connected to a support spring, one end of the support spring is | in contact with the top of the base, and two support springs are disposed. | Preferably, several mounting holes are provided, the several mounting holes are | arranged as a circumferential array, the magnet is a circular magnetic block, the diameter of ! the magnet is consistent with the diameter of the mounting hole, and the magnet is randomly | mounted in an inner cavity of the mounting hole according to an experimental requirement. Preferably, a cross section of an inner cavity of the guide rail is U-shaped, the top of the guide rail is provided with a scale, a rear side of the guide rail is connected to a fastening bolt through screw threads, two fastening bolts are disposed, and one end of the fastening bolt extends to the inner cavity of the guide rail. Preferably, the bottom of a right side of the second bracket is provided with a square hole, the square hole is aligned with the sliding bracket, and one side of the first bracket and one side of the second bracket are both fixedly connected to two reinforcing ribs. Preferably, the top of the speed-measuring piezoelectric beam and a left side of the experimental piezoelectric beam are each bonded to a piezoelectric plate by using an adhesive, two sides of the piezoelectric plate are each bonded to a conducting wire by using a conductive resin, and one end of the conducting wire is connected to an external oscilloscope. Compared with the prior art, the present invention has the following beneficial effects:
1. In the present invention, rotation speeds of the first rotary disc and the second rotary disc are regulated by the speed-regulating motor through cooperation of the direct-current motor, the speed regulator, the first belt wheel, the second belt wheel, and a transmission belt, thereby implementing multi-rotation speed excitation. Stability of rotation of the mounting disc is improved through cooperation of the first rotary disc, the second rotary disc, the | rotating shaft, and the connecting rods, to prevent the mounting disc from shaking duringU102163 | rotating excitation. A vertical position of the experimental piezoelectric beam is conveniently | regulated through cooperation of the sliding slot, the positioning bolt, and the clamping | plates, and a test of data in a vertical direction is added. A horizontal position of the sliding | bracket is conveniently regulated through cooperation of the guide rail, the sliding bracket, | and the fastening bolts, thereby implementing excitation energy harvesting tests of the | experimental piezoelectric beam at different distances from a magnet. Cooperation of the | speed-measuring piezoelectric beam and the eccentric wheel helps to test a rotation speed of | the speed-regulating motor, thereby further reducing an experimental error. |
2. In the present invention, the first belt wheel is disposed, and a size of the first belt | wheel may be changed to further broaden a speed regulation range. The first bracket and the | second bracket are disposed to improve stability of the first rotary disc and the second rotary | disc. The mounting hole is provided to help mount and detach the magnet, thereby ' implementing switching of multi-mode magnetic excitation by adjusting a position for | mounting the magnet and a quantity of mounted magnets. The clamping plate is disposed to | help mount and fix the experimental piezoelectric beam. The support springs are disposed to | improve a support function of the speed-measuring piezoelectric beam, and implement close | contact between the speed-measuring piezoelectric beam and the eccentric wheel while | reducing impact of high-frequency noise on the speed-measuring piezoelectric beam. The square hole is disposed to avoid impact of the first bracket on magnetic excitation, so that the magnetic excitation of the magnet to the experimental piezoelectric beam is stronger. The experimental piezoelectric beam is disposed to help harvest magnetically-excited vibration energy, thereby increasing precision of the test bench. The speed-measuring piezoelectric beam is disposed to increase accuracy of a rotation speed test of the speed-regulating motor.
BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings described herein are used for providing a further understanding of this application, and constitute a part of this application. Exemplary embodiments of this application and the description of the embodiments are used for explaining this application, and do not constitute any inappropriate limitation to this application. In the accompanying drawings: FIG. 1 is a schematic structural diagram of the present invention; FIG. 2 is a schematic diagram of a partial structure of the present invention; FIG. 3 is a top view of the present invention; FIG. 4 is a right view of the present invention; and
FIG. 5 is a left view of the present invention.
LU102163 | In the figures: 1 base, 2 power mechanism, 3 testing mechanism, 4 speed regulator, 5 | speed-regulating motor, 6 rack, 7 first belt wheel, 8 rotating rod, 9 eccentric wheel, 10 first | bracket, 11 first rotary disc, 12 connecting rod, 13 second rotary disc, 14 mounting disc, 15 | mounting hole, 16 second bracket, 17 experimental piezoelectric beam, 18 clamping plate, É 19 positioning bolt, 20 sliding bracket, 21 guide rail, 22 square hole, 23 speed-measuring Ë piezoelectric beam, 24 transmission belt, 25 support spring, 26 second belt wheel, 27 ; rotating shaft, 28 magnet, 29 fastening bolt, and 30 sliding slot. | A plurality of embodiments of the present invention are disclosed by with reference to | drawings.
For clear descriptions, many details in practice are described together in the : following descriptions.
However, it should be understood that such details in practice should | not be used to limit the invention.
That is, the details in practice are not necessary in some | implementations of the present invention.
In addition, to simplify the drawings, some | well-known and usual structures and components are shown in the drawings in a simple | schematic manner. | Further, descriptions including "first", "second", and the like in the present invention are ; only used for a description purpose, do not specifically mean an order or a sequence, are not | used for limiting the present invention, but are merely used for distinguishing between | components or operations described by using the same technical term, and cannot be | understood as indicating or implying relative importance thereof or implying a quantity of | the indicated technical features.
Therefore, a feature defined by "first" or "second" can explicitly or implicitly include at least one of the features.
Furthermore, technical solutions of various embodiments may be combined with each other, but need to be based on the technical solutions that can be implemented by a person of ordinary skill in the art.
When a combination of the technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of the technical solutions does not exist and does not fall within the protection scope of the present invention.
Referring to FIG. 1 to FIG. 5, a multifunctional rotating test bench for magnetically-excited vibration energy harvesting includes a base 1, a power mechanism 2, and a testing mechanism 3. The power mechanism 2 is disposed on a front side of the top of the base 1, and the testing mechanism 3 is disposed on a rear side of the top of the base 1. The power mechanism 2 includes a rack 6 and a speed-regulating motor 5, the rack 6 is fixedly connected to the front side of the top of the base 1, a right side of the rack 6 is
6 | connected to a speed regulator 4 by using a bolt, an output end of the speed-regulating motorU102163 | is fixedly connected to an input end of the speed regulator 4, an output end of the speed | regulator 4 is fixedly connected to a rotating rod 8, one end of the rotating rod 8 passes | through the rack 6, and a first belt wheel 7 is sleeved on a surface of a right end of the | 5 rotating rod 8. The first belt wheel 7 is disposed, and a size of the first belt wheel 7 may be | changed to further broaden a speed regulation range.
An eccentric wheel 9 is fixedly sleeved | on surface of a left end of the rotating rod 8. The testing mechanism 3 includes a first rotary | disc 11, a second rotary disc 13, and a sliding bracket 20, a left side of the rear side of the top | of the base 1 is fixedly connected to a first bracket 10 and a second bracket 16. The first | bracket 10 and the second bracket 16 are disposed to improve stability of the first rotary disc | 11 and the second rotary disc 13. The tops of opposite sides of the first bracket 10 and the | second bracket 16 are each movably connected to a rotating shaft 27, two ends of the | rotating shaft 27 respectively pass through the first bracket 10 and the second bracket 16, | opposite sides of the first rotary disc 11 and the second rotary disc 13 are connected to | several connecting rods 12 through screw threads, a left side of the first rotary disc 11 is [ fixedly connected to a second belt wheel 26 by using a disc, a right side of the second rotary | disc 13 is fixedly connected to a mounting disc 14, and a right side of the mounting disc 14 | is provided with a mounting hole 15. The mounting hole 15 is provided to help mount and detach the magnet 28, thereby implementing switching of multi-mode magnetic excitation by adjusting a position for mounting the magnet 28 and a quantity of mounted magnets 28. A right side of the mounting disc 14 is equipped with the magnet 28 through the mounting hole 15, a right side of the rear side of the top of the base 1 is fixedly connected to a guide rail 21, the bottom of the sliding bracket 20 is movably connected to an interior of the guide rail 21, the top of a left side of the sliding bracket 20 is provided with a sliding slot 30, an inner cavity of the sliding slot 30 is movably connected to a positioning bolt 19, a nut is sleeved on a surface of the positioning bolt 19, both of two ends of the positioning bolt 19 extend outside the sliding slot 30, and one end of the positioning bolt 19 is movably connected to a clamping plate 18 by using the nut.
The clamping plate 18 is disposed to help mount and fix an experimental piezoelectric beam 17. Two clamping plates 18 are disposed, the experimental piezoelectric beam 17 is clamped between the two clamping plates 18. The experimental piezoelectric beam 17 is disposed to help harvest magnetically-excited vibration energy, thereby increasing precision of the test bench.
The bottom of a left side of the first bracket 10 is fixedly connected to a speed-measuring piezoelectric beam 23 by using a bolt.
The speed-measuring piezoelectric beam 23 is disposed to increase accuracy of a rotation speed test on the speed-regulating motor 5. LU102163 | One side of the rack 6 is provided with a notch, a mounting position of the speed | regulator 4 is adjustable by using the notch and the bolt, the speed-regulating motor 5 is | externally connected to a speed-regulating direct-current power supply, the first belt wheel 7 | is detachable, and the speed-regulating motor 5 is a direct-current motor, The top of the | speed-measuring piezoelectric beam 23 is in contact with a surface of the eccentric wheel 9, | a front side of the bottom of the speed-measuring piezoelectric beam 23 is movably | connected to a support spring 25, one end of the support spring 25 is in contact with the top | of the base 1, and two support springs 25 are disposed. The support springs 25 are disposed | to improve a support function of the speed-measuring piezoelectric beam 23, and implement | close contact between the speed-measuring piezoelectric beam 23 and the eccentric wheel 9 | while reducing impact of high-frequency noise on the speed-measuring piezoelectric beam |
23. Several mounting holes 15 are provided, the several mounting holes 15 are arranged as a | circumferential array, the magnet 28 is a circular magnetic block, the diameter of the magnet | 28 is consistent with the diameter of the mounting hole 15, and the magnet 28 is randomly | mounted in an inner cavity of the mounting hole 15 according to an experimental | requirement. A cross section of an inner cavity of the guide rail 21 is U-shaped, the top of the | guide rail 21 is provided with a scale, a rear side of the guide rail 21 is connected to a / fastening bolt 29 through screw threads, two fastening bolts 29 are disposed, and one end of the fastening bolt 29 extends to the inner cavity of the guide rail 21. The bottom of a right side of the second bracket 16 is provided with a square hole 22. The square hole 22 is aligned with the sliding bracket 20. The square hole 22 is disposed to avoid impact of the first bracket 10 on magnetic excitation, so that the magnetic excitation of the magnet 28 to the experimental piezoelectric beam 17 is stronger. One side of the first bracket 10 and one side of the second bracket 16 are both fixedly connected to two reinforcing ribs. The top of the speed-measuring piezoelectric beam 23 and a left side of the experimental piezoelectric beam 17 are each bonded to a piezoelectric plate by using an adhesive, two sides of the piezoelectric plate are each bonded to a conducting wire by using a conductive resin, and one end of the conducting wire is connected to an external oscilloscope. Rotation speeds of the first rotary disc 11 and the second rotary disc 13 are regulated by the speed-regulating motor 5 through cooperation of the direct-current motor, the speed regulator 4, the first belt wheel 7, the second belt wheel 26, and a transmission belt 24, thereby implementing multi-rotation speed excitation. Stability of rotation of the mounting disc 14 is improved through cooperation of the first rotary disc 11, the second rotary disc 13, the rotating shaft 27, and the
8 | connecting rod 12, to prevent the mounting disc 14 from shaking during rotating excitation,U102163 | A vertical position of the experimental piezoelectric beam 17 is conveniently regulated | through cooperation of the sliding slot 30, the positioning bolt 19, and the clamping plates 18, | and a test of data in a vertical direction is added.
A horizontal position of the sliding bracket | 20 is conveniently regulated through cooperation of the guide rail 21, the sliding bracket 20, | and a fastening bolts 29, thereby implementing excitation energy harvesting tests of the | experimental piezoelectric beam 17 at different distances from the magnet 28. Cooperation / of the speed-measuring piezoelectric beam 23 and the eccentric wheel 9 helps to test a | rotation speed of the speed-regulating motor 5, thereby further reducing an experimental error.
During use, the magnet 28 is first mounted into an interior of the mounting hole 15 | according to a required mode, then the transmission belt 24 is mounted on surfaces of the | first belt wheel 7 and the second belt wheel 26, and then the sliding bracket 20 is moved left | and right.
The sliding bracket 20 is adjusted to a proper position with reference to the scale | on the top of the guide rail 21, then the fastening bolts 29 are screwed in, to fix the sliding | bracket 20 and the guide rail 21, and then the positioning bolt 19 is moved up and down in an interior of the sliding slot 30, to move clamping plates 18 to ideal experimental positions, that is, the experimental piezoelectric beam 17 directly faces the center of the square hole 22, and then a piezoelectric plate on a surface of the speed-measuring piezoelectric beam 23 is connected to an external oscilloscope through a conducting wire.
A piezoelectric plate on a left side and a right side of the experimental piezoelectric beam 17 is connected to the external oscilloscope through the conducting wire, and then the speed-regulating motor 5 is connected to an external speed-regulating direct-current power supply.
The speed-regulating direct-current power supply is switched on, and the center of the eccentric wheel 9 is adjusted to a position on the same horizontal line as the center of the rotating rod 8, that is, the speed-measuring piezoelectric beam 23 is in a horizontal position, and a test experiment may be performed after preparations are completed.
During the experiment, a rotation speed of the speed-regulating motor 5 is regulated, and a rotation speed of the mounting disc 14 is regulated by using the first belt wheel 7, the transmission belt 24, and the second belt wheel 26, to implement rotating magnetic excitation energy harvesting experiments at different rotation speeds.
During a speed regulation process, the eccentric wheel 9 rotates to compress the speed-measuring piezoelectric beam 23, to accurately detect the rotation speed of the speed-regulating motor 5 in real time by using periodic ripples.
During speed measurement, the support springs 25 may well reduce impact of high frequency noise. When a rotation speed regulation rangd U102163 | needs to be broadened, a rotation speed regulation range may be broadened through | replacement of a first belt wheel 7 having a different diameter and a transmission belt 24 | having a different diameter. When magnetic excitation needs to be regulated in a plurality of | modes, a mounting position of the magnet 28 may be changed, a quantity of the magnets 28, / and a mounting manner of the magnet 28 may be adjusted, to implement rotating magnetic | excitation in a plurality of modes such as an N-pole reciprocating cycle, an S-pole | reciprocating cycle, and an N/S pole alternating cycle. When a distance between the Ë experimental piezoelectric beam 17 and the magnet 28 needs to be adjusted, the fastening | bolts 29 may be loosened, and then the sliding bracket 20 may be slid to adjust the distance. | Further, an upper position and a lower position of the experimental piezoelectric beam 17 | may be adjusted by adjusting a position of the positioning bolt 19 in the sliding slot 30. | When the experiment ends, a power supply of the speed-regulating motor 5 is cut off, a | connection line of the oscilloscope is removed, and the test bench is placed properly, to | avoid the test bench from being damaged and affecting use. | In conclusion, through cooperation of the base 1, the power mechanism 2, the testing | mechanism 3, the speed regulator 4, the speed-regulating motor 5, the rack 6, the first belt .
wheel 7, the rotating rod 8, the eccentric wheel 9, the first bracket 10, the first rotary disc 11, | the connecting rods 12, the second rotary disc 13, the mounting disc 14, the mounting holes | 15, the second bracket 16, the experimental piezoelectric beam 17, the clamping plates 18, | the positioning bolt 19, the sliding bracket 20, the guide rail 21, the square hole 22, the | speed-measuring piezoelectric beam 23, the transmission belt 24, the support springs 25, the | second belt wheel 26, rotating shaft 27, the magnet 28, the fastening bolts 29, and the sliding | slot 30, the multifunctional rotating test bench for magnetically-excited vibration energy | harvesting resolves the problems of inconvenient regulation of a rotation speed of rotating | magnetic excitation, inconvenient regulation in a plurality of magnetic excitation modes, and | inconvenient regulation at a plurality of excitation distances caused by a device structure | when an existing multifunctional rotating test bench for magnetically-excited vibration | energy harvesting is used | The foregoing descriptions are merely implementations of the present invention and are | not intended to limit the present invention. For a person skilled in the art, various | modifications and variations can be made to the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the scope of the claims of the present invention. ;
Claims (7)
1. A multifunctional rotating test bench for magnetically-excited vibration energy | harvesting, comprising a base (1), a power mechanism (2), and a testing mechanism (3), Ë wherein the power mechanism (2) is disposed on a front side of the top of the base (1), and | the testing mechanism (3) is disposed on a rear side of the top of the base (1); Ë the power mechanism (2) comprises a rack (6) and a speed-regulating motor (5), the Ë rack (6) is fixedly connected to the front side of the top of the base (1), a right side of the : rack (6) is connected to a speed regulator (4) by using a bolt, an output end of the : speed-regulating motor (5) is fixedly connected to an input end of the speed regulator (4), an | output end of the speed regulator (4) is fixedly connected to a rotating rod (8), one end of the Ë rotating rod (8) passes through the rack (6), a first belt wheel (7) is sleeved on a surface of a | right end of the rotating rod (8), and an eccentric wheel (9) is fixedly sleeved on a surface of | a left end of the rotating rod (8); and | the testing mechanism (3) comprises a first rotary disc (11), a second rotary disc (13), ' and a sliding bracket (20), a left side of the rear side of the top of the base (1) is fixedly | connected to a first bracket (10) and a second bracket (16), the tops of opposite sides of the | first bracket (10) and the second bracket (16) are both movably connected to a rotating shaft / (27), two ends of the rotating shaft (27) respectively pass through the first bracket (10) and | the second bracket (16), opposite sides of the first rotary disc (11) and the second rotary disc | (13) are connected to several connecting rods (12) through screw threads, a left side of the | first rotary disc (11) is fixedly connected to a second belt wheel (26) by using a disc, a right | side of the second rotary disc (13) is fixedly connected to a mounting disc (14), a right side | of the mounting disc (14) is provided with a mounting hole (15), a right side of the mounting | disc (14) is equipped with a magnet (28) through the mounting hole (15), a right side of the | rear side of the top of the base (1) is fixedly connected to a guide rail (21), the bottom of the | sliding bracket (20) is movably connected to an interior of the guide rail (21), the top of a | left side of the sliding bracket (20) is provided with a sliding slot (30), an inner cavity of the sliding slot (30) is movably connected to a positioning bolt (19), a nut is sleeved on a surface of the positioning bolt (19), both of two ends of the positioning bolt (19) extend outside the sliding slot (30), one end of the positioning bolt (19) is movably connected to a clamping plate (18) by using the nut, two clamping plates (18) are disposed, an experimental piezoelectric beam (17) is clamped between the two clamping plates (18), and the bottom of a left side of the first bracket (10) is fixedly connected to a speed-measuring piezoelectric beam (23) by using a bolt. LU102163 |
2. The multifunctional rotating test bench for magnetically-excited vibration energy | harvesting according to claim 1, wherein one side of the rack (6) is provided with a notch, a À mounting position of the speed regulator (4) is adjustable by using the notch and the bolt, the | speed-regulating motor (5) is externally connected to a speed-regulating direct-current power : supply, the first belt wheel (7) is detachable, and the speed-regulating motor (5) is a | direct-current motor. |
3. The multifunctional rotating test bench for magnetically-excited vibration energy ; harvesting according to claim 1, wherein the top of the speed-measuring piezoelectric beam | (23) is in contact with a surface of the eccentric wheel (9), a front side of the bottom of the ı speed-measuring piezoelectric beam (23) is movably connected to a support spring (25), one | end of the support spring (25) is in contact with the top of the base (1), and two support : springs (25) are disposed. |
4. The multifunctional rotating test bench for magnetically-excited vibration energy | harvesting according to claim 1, wherein several mounting holes (15) are provided, the i several mounting holes (15) are arranged as a circumferential array, the magnet (28) is a i circular magnetic block, the diameter of the magnet (28) is consistent with the diameter of / the mounting hole (15), and the magnet (28) is randomly mounted in an inner cavity of the | mounting hole (15) according to an experimental requirement. |
5. The multifunctional rotating test bench for magnetically-excited vibration energy | harvesting according to claim 1, wherein a cross section of an inner cavity of the guide rail | (21) is U-shaped, the top of the guide rail (21) is provided with a scale, a rear side of the | guide rail (21) is connected to a fastening bolt (29) through screw threads, two fastening | bolts (29) are disposed, and one end of the fastening bolt (29) extends to the inner cavity of | the guide rail (21).
6. The multifunctional rotating test bench for magnetically-excited vibration energy harvesting according to claim 1, wherein the bottom of a right side of the second bracket (16) is provided with a square hole (22), the square hole (22) is aligned with the sliding bracket (20), and one side of the first bracket (10) and one side of the second bracket (16) are both fixedly connected to two reinforcing ribs.
7. The multifunctional rotating test bench for magnetically-excited vibration energy harvesting according to claim 1, wherein the top of the speed-measuring piezoelectric beam (23) and a left side of the experimental piezoelectric beam (17) are each bonded to a piezoelectric plate by using an adhesive, two sides of the piezoelectric plate are each bonded to a conducting wire by using a conductive resin, and one end of the conducting wire is.U102163 | connected to an external oscilloscope. |
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| CN202010037777.0A CN111123019B (en) | 2020-01-14 | 2020-01-14 | Multifunctional rotary magnetic excitation vibration energy harvesting experiment table |
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| CN117368693A (en) * | 2023-10-16 | 2024-01-09 | 山东视显电子技术有限公司 | Main control circuit board performance detection device in display |
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| CN113125792B (en) * | 2021-04-22 | 2023-01-31 | 长春工业大学 | Piezoelectric-electromagnetic combined sensing device for measuring rotating speed |
| CN114200377B (en) * | 2021-11-23 | 2024-01-19 | 天航长鹰(江苏)科技有限公司 | Wireless polarity testing device for mutual inductor |
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| CN104481807B (en) * | 2014-11-03 | 2017-04-12 | 大连理工大学 | Wind speed self-adjusting piezoelectric wind energy collecting device capable of being started at low wind speed |
| CN106870288B (en) * | 2017-03-18 | 2023-08-15 | 南昌工程学院 | Rotary piezoelectric breeze power generation device based on magnetostriction |
| US10234248B1 (en) * | 2017-06-12 | 2019-03-19 | The United States Of America As Represented By The Secretary Of The Navy | Micro-electric-pyrotechnic energy-harvesting apparatus for munitions |
| CN107395056B (en) * | 2017-08-17 | 2018-08-24 | 浙江师范大学 | A kind of multi-dimensional vibration energy accumulator |
| CN108386317B (en) * | 2018-03-15 | 2019-05-10 | 大连理工大学 | A kind of double-form multifunction piezoelectric actuator wind-energy collecting device |
| CN109274289A (en) * | 2018-12-07 | 2019-01-25 | 中国计量大学 | A kind of piezoelectric energy trapping device and method that can automatically adjust resonant frequency and bandwidth |
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| CN117368693A (en) * | 2023-10-16 | 2024-01-09 | 山东视显电子技术有限公司 | Main control circuit board performance detection device in display |
| CN117368693B (en) * | 2023-10-16 | 2024-03-19 | 山东视显电子技术有限公司 | Main control circuit board performance detection device in display |
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