CN103337986A - Rotary wave energy piezoelectric power generation apparatus - Google Patents
Rotary wave energy piezoelectric power generation apparatus Download PDFInfo
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- CN103337986A CN103337986A CN2013102047690A CN201310204769A CN103337986A CN 103337986 A CN103337986 A CN 103337986A CN 2013102047690 A CN2013102047690 A CN 2013102047690A CN 201310204769 A CN201310204769 A CN 201310204769A CN 103337986 A CN103337986 A CN 103337986A
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Abstract
The invention belongs to the technology of new energy resources, relates to a rotary wave energy piezoelectric power generation apparatus which is used for collecting ocean wave energy and converting the ocean wave energy into electric energy. The apparatus is composed of a primary transduction component, an intermediate conversion component, a secondary transduction component and a sealing assembly. The primary transduction component is composed of a damping plate, a slide shaft, a damping plate fastening nut, a floating body, an upper slide sleeve and a lower slide sleeve, an upper balance spring and a lower balance spring, a middle support and a lower support. A broadband rotary piezoelectric generator in the secondary transduction component altogether has six structural forms, wherein arrayed piezoelectric cantilever beams in the broadband rotary piezoelectric generators in different structural forms have different natural frequencies, and thus the frequency bandwidth is relatively wide. The middle conversion component can effectively convert low-frequency linear motion into high-frequency rotation motion, and the power generation efficiency is relatively high. The apparatus is characterized by wide response frequency band and high power generation efficiency, does not need a control system, and can absorb ocean wave energy to the utmost.
Description
Technical field
The invention belongs to technical field of new energies, relate to a kind of rotary wave energy piezoelectric generating device, be used for collecting the device that ocean wave energy converts it into electric energy.
Background technology
Human monitoring to marine environment and safety is strengthened day by day, and the energy supply problem of ocean wireless sensing net node presses for solution.Traditional energy-provision way comprises solar energy, lithium battery, chemical cell etc., and solar power generation is subject to the Marine Weather influence; Lithium battery needs constantly to change; The danger that chemical cell need be changed electrode and have contaminated environment.Ocean wave energy is the higher renewable and clean energy resource of a kind of quality, and reserves are huge.Collecting wave energy is that ocean wireless sensing net node energy supply is a kind of mode that has potentiality.At present, the electricity generation by sea waves major technology comprises a little absorption technology, oscillating water column technology, overflows pressure differential technology etc. in top formula technology, the water.There is a small amount of wave energy product to reach the practicability level at present, the Pelamis wave power device of Britain etc. is arranged.All in all, ocean wave energy device build is huge, cost is higher, need supplementary controlled system, discomfort to be combined into wireless sensing net node usually or microelectronic device provides energy.
Utilizing piezo technology to collect ocean wave energy is a kind of desirable mode for ocean wireless sensing net node or microelectronic device energy supply.People such as Chu Jinkui have invented a kind of orthoscopic piezoelectricity wave energy generating set, and application number is 201110112353.7, and denomination of invention is: a kind of device that utilizes seawave power generation.The shortcoming of this invention is that the bandwidth of Blast Furnace Top Gas Recovery Turbine Unit (TRT) is narrower, and conversion efficiency is not high.People such as Du Xiaozhen have invented a kind of device that utilizes piezoelectric pile to generate electricity, application number: 201110414908.3, and denomination of invention is: small-sized ocean piezoelectric generating device.The shortcoming of this invention is that the operating frequency of Blast Furnace Top Gas Recovery Turbine Unit (TRT) is lower, and efficient is low.At present, the problem that the correlation technique of utilizing piezoelectric to collect ocean wave energy mainly exists is that the Blast Furnace Top Gas Recovery Turbine Unit (TRT) responsive bandwidth is narrower, and generating efficiency is lower.
Summary of the invention
The technical barrier that the present invention will solve is the defective that overcomes prior art, invent a kind of rotary wave energy piezoelectric generating device, owing to adopt one-level transducer part, intermediate conversion parts and secondary transducer part, make this device response band wide, the generating efficiency height, can be suitable for the characteristics of ocean wave energy change at random, and this device do not need control system, can absorb ocean wave energy to greatest extent.
The technical solution adopted in the present invention is a kind of rotary wave energy piezoelectric generating device, it is characterized in that, this device is made up of one-level transducer part, intermediate conversion parts, secondary transducer part and black box; Described one-level transducer part is by damping sheet 1, sliding axle 2, and damping sheet clamp nut 18, float body 3, upper and lower sliding sleeve 14,5, upper and lower balancing spring 12,6, intermediate support 7 and upper bracket 16 are formed; Transducer part is by tooth bar 8 in the middle of described, and gear 9 and axle 17 are formed; Described secondary transducer part, by electric machine support, wideband rotary piezoelectric generator 11, rectifier bridge 21 and circuit box 15 are formed; Described black box is made up of sealing ring 4 and seal closure 13;
In the described one-level transducer part, damping sheet 1 utilizes damping sheet clamp nut 18 to be fixed on sliding axle 2 one ends; Intermediate support 7 and sliding axle 2 are rigidly connected; Electric machine support is fixed on float body 3 tops, and upper bracket 16 is fixed on electric machine support top.Upper sliding sleeve 14 is fixed on upper bracket 16 bottoms, and low sleeve 5 is fixed on float body 3 tops; Last balancing spring 12 is installed between upper sliding sleeve 14 and the intermediate support 7; Following balancing spring 6 is installed between low sleeve 5 and the intermediate support 7; Sliding axle 2 slides in upper and lower sliding sleeve 14,5;
In the described black box, sealing ring 4 is fixed on float body 3 inside by low sleeve 5, and seal closure 13 is fixed on float body 3 tops;
In the transducer part, middle transducer part and wideband rotary piezoelectric generator 11 are left-right symmetric and distribute in the middle of described; Tooth bar 8 is fixed on the intermediate support 7, and gear 9 and axle 17 rotate synchronously, utilize bearing that axle 17 is fixed on the electric machine support, and tooth bar 8 is meshing with each other with gear 9;
In the described secondary transducer part, wideband rotary piezoelectric generator 11 is by driving wheel 11a, several permanent magnets 11b, and several piezoelectric cantilevers 11c, support and securing member are formed; Described securing member is support fastening bolt 19a and support clamp nut 19b or support trip bolt 20; Utilize securing member to realize the fixing of support and electric machine support; Several permanent magnets 11b uniform array is around driving wheel 11a; Driving wheel 11a rotates synchronously with axle 17; The different piezoelectric cantilever 11c uniform array of several natural frequencys is on support, and the free end of each piezoelectric cantilever 11c all fixedly has permanent magnet 11b; Axle 17 and support dead in line, support is fixed on the electric machine support; The alternating current that rectifier bridge 18 produces piezoelectric cantilever 11c converts direct current to and gives load R energy supply; Circuit box 15 is installed on the upper bracket 16.
Described a kind of rotary wave energy piezoelectric generating device is characterized in that, in the described secondary transducer part, described support has first kind of support 11d, second kind of support 11d ' or the third support 11d "; Be uniform-distribution with around first kind of support 11d a circle parallel axes to several support arms; Second kind of support 11d ' be uniform-distribution with all around two circle parallel axes to several support arms; The third support 11d " is uniform-distribution with several support arms that point to the axle center all around; Electric machine support have first kind of electric machine support 10, second kind of electric machine support 10 ' or the third electric machine support 10 "; Three kinds of electric machine supports all position axle 17, and in addition, first kind of electric machine support 10 utilizes fixed arm 10a to fix first kind of support 11d or second kind of support 11d '; Second kind of electric machine support 10 ' utilize left fixed arm 10a ' and right fixed arm 10b ' to fix first kind of support 11d or second kind of support 11d '; The third electric machine support 10 " fixed arm 10a in utilizing " and outer fixed arm 10b " fix the third support 11d ".
Described a kind of rotary wave energy piezoelectric generating device, it is characterized in that, in the described secondary transducer part, wideband rotary piezoelectric generator 11 has 6 kinds of versions, and these 6 kinds of versions are respectively I molded breadth frequency rotary piezoelectric generator, II molded breadth rotary piezoelectric generator, III molded breadth frequency rotary piezoelectric generator, IV molded breadth frequency rotary piezoelectric generator, V molded breadth frequency rotary piezoelectric generator and VI molded breadth frequency rotary piezoelectric generator frequently; The piezoelectric cantilever 11c natural frequency of array is all different in the wideband rotary piezoelectric generator 11 of each version;
In described I molded breadth frequency rotary piezoelectric generator, axle 17 is positioned on first kind of electric machine support 10; Utilize support fastening bolt 19a and support clamp nut 19b that first kind of support 11d and first kind of electric machine support 10 are fixed together.Driving wheel 11a is in the inboard of piezoelectric cantilever 11c array, the permanent magnet 11b radially aligned of equally distributed permanent magnet 11b and corresponding piezoelectric cantilever beam end around the driving wheel 11a;
In described II molded breadth frequency rotary piezoelectric generator, axle 17 is positioned on first kind of electric machine support 10; Utilize support fastening bolt 19a and support clamp nut 19b that first kind of support 11d and first kind of electric machine support 10 are fixed together; Driving wheel 11a is in the left side of piezoelectric cantilever 11c array, and equally distributed permanent magnet 11b axially aligns with the permanent magnet 11b of corresponding piezoelectric cantilever beam end around the driving wheel 11a;
Described III molded breadth is frequently in the rotary piezoelectric generator, axle 17 be positioned at second kind of electric machine support 10 ' on; Utilize support fastening bolt 19a and support clamp nut 19b with first kind of support 11d and second kind of electric machine support 10 ' be fixed together; Piezoelectric cantilever 11c array and I type support 11d distribute about driving wheel 11a left-right symmetric; Equally distributed permanent magnet 11b axially aligns with the permanent magnet 11b of corresponding piezoelectric cantilever beam end around the driving wheel 11a;
In described IV molded breadth frequency rotary piezoelectric generator, axle 17 is positioned on first kind of electric machine support 10; Utilize support fastening bolt 19a and support clamp nut 19b that first kind of electric machine support 10 and second kind of support 11d ' are fixed together; Driving wheel 11a is in the piezoelectric cantilever 11c of outer ring array inboard, in the piezoelectric cantilever 11c of inner ring left side array; Each piezoelectric cantilever beam end permanent magnet radially aligned of equally distributed permanent magnet 11b and corresponding outer ring around the driving wheel 11a; Driving wheel 11a, equally distributed permanent magnet 11b axially aligns with each piezoelectric cantilever beam end permanent magnet of corresponding inner ring around the driving wheel 11a;
Described V molded breadth is frequently in the rotary piezoelectric generator, axle 17 be positioned at second kind of electric machine support 10 ' on; With support fastening bolt 19a and support clamp nut 19b with second kind of electric machine support 10 ' and second kind of support 11d ' is fixing; Piezoelectric cantilever 11c array and second kind of support 11d ' distribute about driving wheel 11a left-right symmetric; In the structure of each side, at the piezoelectric cantilever 11c end of inner ring permanent magnet 11b with corresponding at the piezoelectric cantilever 11c end of outer ring permanent magnet 11b radially aligned;
In the described VI molded breadth frequency rotary piezoelectric generator, axle 17 is positioned at the third electric machine support 10 " on; On with support trip bolt 20 the third support 11 " being fixed on the third electric machine support 10 "; Each piezoelectric cantilever 11c is towards driving wheel 11a pivot; Driving wheel 11a is at III type support 11 " inside, the permanent magnet radially aligned of equally distributed permanent magnet 11b and corresponding each piezoelectric cantilever 11c end around the driving wheel 11a.
Remarkable result of the present invention is that the natural frequency of array piezoelectric cantilever beam 11c in the wideband rotary piezoelectric generator 11 is all different, thereby response band is wideer; The intermediate conversion parts can be effectively convert the rectilinear motion of low frequency to high frequency rotatablely move, and generating efficiency is higher.It is wide that this device has response band, and the characteristics that generating efficiency is high can effectively be collected unsettled ocean wave energy.
Description of drawings
The rotary wave energy piezoelectric generating device structural representation of accompanying drawing 1 expression; The rotary wave energy piezoelectric generating device cutaway view of accompanying drawing 2 expressions; Accompanying drawing 3 expression intermediate conversion modular construction schematic diagrames; Accompanying drawing 4 expression I molded breadths are rotary piezoelectric electric generator structure sketch frequently; Accompanying drawing 5 expression II molded breadths are rotary piezoelectric electric generator structure sketch frequently; Accompanying drawing 6 III wideband rotary piezoelectric electric generator structure sketches; Accompanying drawing 7 IV wideband rotary piezoelectric electric generator structure sketches; Accompanying drawing 8 V wideband rotary piezoelectric electric generator structure sketches; Accompanying drawing 9 VI wideband rotary piezoelectric electric generator structure sketches; Accompanying drawing 10 piezoelectric cantilever array processing circuits.
Wherein, 1-damping sheet, 2-sliding axle, the 3-float body, 4-sealing ring, 5-low sleeve, balancing spring under the 6-, 7-intermediate support, 8-tooth bar, the 9-gear, first kind of type electric machine support of 10-, 10a-fixed arm, 10 '-the second kinds of electric machine supports, 10a '-left fixed arm, 10b '-right fixed arm, 10 " the third electric machine support, the outer fixed arm of 10a " lining fixed arm, 10b "; 11-wideband rotary piezoelectric generator, 11a-driving wheel, 11b-permanent magnet; 11c-piezoelectric cantilever, first kind of support of 11d-, 11d '-second kind of support; 11 " the third support, the last balancing spring of 12-, 13-seal closure, the 14-upper sliding sleeve, 15-circuit box, 16-upper bracket, the 17-axle, 18-damping sheet clamp nut, 19a-support fastening bolt, 19b-support clamp nut, 20-support trip bolt, 21-rectifier bridge.
Embodiment
Describe the specific embodiment of the present invention in detail with technical scheme by reference to the accompanying drawings.The rotary piezoelectric generating device of a kind of wave energy of the present invention, this device is made up of one-level transducer part, intermediate conversion parts, secondary transducer part and black box.Basic functional principle is to utilize the one-level transducer part wave energy to be converted to the mechanical energy of form of straight lines; Utilize the intermediate conversion parts to convert the mechanical energy of form of straight lines the mechanical energy of rotation formula to, the mechanical energy of utilizing the secondary converting member will rotate form converts electric energy to.
The rotary piezoelectric generating device structural representation of accompanying drawing 1 expression wave energy.With reference to accompanying drawing 1 and accompanying drawing 2, in the present embodiment, sliding axle 2 ends have been processed external screw thread.Damping sheet 1 can be fixed on the lower end of sliding axle 2 with two damping sheet clamp nuts 18, can be as required, adjust the relative position of damping sheet 1 and sliding axle 2.Float body 3 is cylinder, and density of material is lower than water density, and assurance device float body upper surface in use is higher than the sea level.Electric machine support utilizes screw to be fixed on the float body 3, and upper bracket 16 and electric machine support utilize bolt, nut to fix.Circuit box 15 utilizes screw to be fixed on the upper bracket 16.Upper and lower sliding sleeve 14,5 concentrics play the radial location effect to sliding axle 2, and sliding axle 2 only can slide in upper and lower sliding sleeve 14,5.Intermediate support 7 is fixed together by modes such as welding with sliding axle 2.
When Blast Furnace Top Gas Recovery Turbine Unit (TRT) was put into ocean surface, damping sheet 1 and float body 3 produced relative motion under the effect of wave force, and damping sheet 1 drives intermediate support 7 and moves relative to straight line relative to float body 3 generations.When middle support 7 relative float bodies 3 moved upward from the equilbrium position, balancing spring 12 in the compression, and last balancing spring 12 produces deboost because of compressed, makes intermediate support 7 get back to the equilbrium position.When middle support 7 relative float bodies 3 moved downward from the equilbrium position, compression is balancing spring 6 down, and following balancing spring 6 produces deboost because of compressed, also can make intermediate support 7 get back to the equilbrium position.Upper and lower balancing spring 12,6 rigidity are bigger to the effectiveness affects of transducing head.
4 pairs of Blast Furnace Top Gas Recovery Turbine Unit (TRT) of sealing ring further seal, and can avoid the through hole access to plant inside of seawater in the middle of float body 3.Seal closure 13 utilizes screw to be fixed on float body top, can effectively avoid wave to impact and the seawater access to plant inside of interior arrangement.
With reference to accompanying drawing 3, gear (9) and tooth bar (8) are meshing with each other and the linear relative movement of damping sheet (1) and float body (3) can be converted to the relative rotary motion of gear (9) and electric machine support; The synchronous rotation of gear (9) and axle (17) can realize by structures such as general flat key and the shaft shoulders.Intermediate conversion parts and wideband rotary piezoelectric generator 11 are left-right symmetric and distribute, and are conducive to the balance of device and the reasonability of design.
Under the sea conditions of reality, damping sheet 1 is constantly to change with the relative motion displacement amplitude of float body 3, even very little, and the intermediate conversion parts can be effectively convert the rectilinear motion of low frequency to high frequency rotatablely move.
By reference to the accompanying drawings 2,3,4,5,6,7,8,9,10, wideband rotary piezoelectric generator 11 has six kinds of multi-form structures among the present invention, and the characteristics of these structures are that the natural frequency of piezoelectric cantilever 11c of local array is all different.The operation principle of wideband rotary piezoelectric generator 11 is, when gear 9 drives driving wheel 11a rotation, be distributed on driving wheel 11a permanent magnet 11b all around and constantly change in the magnetic field of piezoelectric cantilever 11c free end position generation, the permanent magnetism power that the free-ended permanent magnet 11b of piezoelectric cantilever 11c is subjected under the effect of variation magnetic field constantly changes.Permanent magnetism power determines with the distance that is fixed on the free-ended permanent magnet of piezoelectric cantilever 11c and pole orientation by being distributed on driving wheel 11a permanent magnet 11b all around.Piezoelectric cantilever 11c constantly produces alternate stress under end permanent magnet 11b drives, according to direct piezoelectric effect, the upper and lower electrode of piezoelectric cantilever 11c piezoelectric layer constantly produces electric current.Rectifier bridge 17 that can be by separately is with electric energy supply load R, and relevant connecting circuit and electronic device are placed in the circuit box 15.
I molded breadth frequency rotary piezoelectric electric generator structure sketch as shown in Figure 4.The location that utilizes bearing and I type electric machine support 10 to realize axle 17.Utilize support fastening bolt 19a and support clamp nut 19b that first kind of support 11d and first kind of electric machine support 10 are fixed together.The support arm length of first kind of support 11d can be identical, also can be different, and main purpose is alignd at free end for the piezoelectric cantilever 11c that realizes different natural frequencies.The free-ended displacement of piezoelectric cantilever 11c is subjected to the restriction of distance between exciting wheel 11a and the piezoelectric cantilever 11c, should avoid piezoelectric cantilever 11c free end to strike on the driving wheel 11a.Driving wheel 11a can reduce the axial length of wideband rotary piezoelectric generator 11 in the interior survey of piezoelectric cantilever 11c array.
II molded breadth frequency rotary piezoelectric electric generator structure sketch as shown in Figure 5.Utilize bearing and first kind of location that electric machine support 10 is realized axle 17.Utilize support fastening bolt 19a and support clamp nut 19b that first kind of support 11d and first kind of electric machine support 10 are fixed together.The support arm length of first kind of support 11d can be identical, also can be different, and main purpose is alignd at free end for the piezoelectric cantilever 11c that realizes different natural frequencies.Driving wheel 11a is in the left side of piezoelectric cantilever 11c array, and therefore, the free-ended displacement of piezoelectric cantilever 11c is not subjected to driving wheel 11a structural limitations.
III molded breadth frequency rotary piezoelectric electric generator structure sketch as shown in Figure 6.Utilize the location of bearing and second kind of electric machine support 10 ' realization axle 17.Utilize support fastening bolt 19a and support clamp nut 19b with first kind of support 11d and second kind of electric machine support 10 ' be fixed together.The support arm length of first kind of support 11d can be identical, also can be different, and main purpose is alignd at free end for the piezoelectric cantilever 11c that realizes different natural frequencies.Piezoelectric cantilever 11c array and first kind of support 11d distribute about driving wheel 11a left-right symmetric, can increase the number of array piezoelectric cantilever beam 11c, improve the power output of wideband rotary piezoelectric generator 11.
The structure diagram of IV molded breadth frequency rotary piezoelectric generator 11 as shown in Figure 7.Utilize bearing and first kind of location that electric machine support 10 is realized axle 17.Utilize support fastening bolt 19a and support clamp nut 19b that second kind of support 11d ' and first kind of electric machine support 10 are fixed together.The support arm length of second kind of support 11d ' can be identical, also can be different, and main purpose is the free end alignment respectively separately of the piezoelectric cantilever 11c of the inside and outside circle of realization.Second kind of support 11d ' is uniform-distribution with two circle piezoelectric cantilever 11c arrays all around, can increase the number of array piezoelectric cantilever beam 11c, improves the power output of rotary piezoelectric generator.
V molded breadth frequency rotary piezoelectric electric generator structure sketch as shown in Figure 8.Utilize the location of bearing and second kind of electric machine support 10 ' realization axle 17.Utilize support fastening bolt 19a and support clamp nut 19b with second kind of support 11d ' and second kind of electric machine support 10 ' be fixed together.The support arm length of second kind of support 11d ' can be identical, also can be different, and the free end separately respectively alignment of main purpose for realizing each piezoelectric cantilever 11c.Piezoelectric cantilever 11c array and second kind of support 11d ' distribute about driving wheel 11a left-right symmetric, can increase the number of array piezoelectric cantilever beam 11c, improve the power output of wideband rotary piezoelectric generator 11.
VI molded breadth frequency rotary piezoelectric generator sketch as shown in Figure 9.Utilize bearing and the third electric machine support 10 and " realize the location of axle 17.Utilize about two on the support trip bolt 20 that distributes " is fixed on the third electric machine support 10 " with the third support 11.The third support 11 " support arm length can be identical, also can be different, main purpose is for realizing that each piezoelectric cantilever 11c free end tangentially aligns at circumference.Driving wheel 11a is at support 11d, and " inside can reduce the axial dimension of wideband rotary piezoelectric generator 11 greatly.
Figure 10 represents piezoelectric cantilever 11c array processing circuit.The alternating current that each piezoelectric cantilever 11c produces carries out rectification through rectifier bridge 17, and the direct current that obtains is in parallel directly to be load R energy supply.
The natural frequency difference of each piezoelectric cantilever 11c, the responsive bandwidth main cause that can widen wideband rotary piezoelectric generator 11 is: piezoelectric cantilever 11c is in resonance driving frequency left and right sides power output maximum.When the natural frequency of each piezoelectric cantilever 11c not simultaneously, also just mean resonance driving frequency difference.For the wideband rotary piezoelectric generator of being made up of the different piezoelectric cantilever 11c of natural frequency 11, its resonance driving frequency is distributed in a certain scope, thereby this generator has very big bandwidth.
The middle transducer part of this device can be effectively converts the rectilinear motion of low frequency to high frequency rotatablely move.Equally distributed permanent magnet 11b can further improve the power output of wideband rotary piezoelectric generator 11 around the driving wheel 11a, and main cause is: the number of equally distributed permanent magnet 11b is determining to be applied to the frequency of piezoelectric cantilever 11c end active force around the driving wheel 11a.The number of equally distributed permanent magnet 11b is more many around the driving wheel 11a, and the frequency that is applied to piezoelectric cantilever 11c end active force is more big, and piezoelectric cantilever 11c power output is more high.The structure of equally distributed permanent magnet 11b can increase the power output of wideband rotary piezoelectric generator 11 greatly around the middle transducer part of utilization and the driving wheel 11a.During use, whole wave power device can utilize single or many root system pool lines to act on to be implemented in the ocean on the float body and locate.
A kind of wave energy rotary piezoelectric of the present invention Blast Furnace Top Gas Recovery Turbine Unit (TRT), it is wide to have a response band, and the advantage that generating efficiency is high is fit to collect ocean wave energy, can be the ocean wireless sensing net node or the low power dissipation electron device provides energy.
Claims (3)
1. a rotary wave energy piezoelectric generating device is characterized in that, this device is made up of one-level transducer part, intermediate conversion parts, secondary transducer part and black box; Described one-level transducer part is by damping sheet (1), sliding axle (2), and damping sheet clamp nut (18), float body (3), upper and lower sliding sleeve (14,5), upper and lower balancing spring (12,6), intermediate support (7) and upper bracket (16) are formed; Transducer part is by tooth bar (8) in the middle of described, and gear (9) and axle (17) are formed; Described secondary transducer part, by electric machine support, wideband rotary piezoelectric generator (11), rectifier bridge (21) and circuit box (15) are formed; Described black box is made up of sealing ring (4) and seal closure (13);
In the described one-level transducer part, damping sheet (1) utilizes damping sheet clamp nut (18) to be fixed on sliding axle (2) one ends; Intermediate support (7) and sliding axle (2) are rigidly connected; Electric machine support is fixed on float body (3) top, and upper bracket (16) is fixed on electric machine support top.Upper sliding sleeve (14) is fixed on upper bracket (16) bottom, and low sleeve (5) is fixed on float body (3) top; Last balancing spring (12) is installed between upper sliding sleeve (14) and the intermediate support (7); Following balancing spring (6) is installed between low sleeve (5) and the intermediate support (7); Sliding axle (2) slides in upper and lower sliding sleeve (14,5);
In the described black box, sealing ring (4) is fixed on float body (3) inside by low sleeve (5), and seal closure (13) is fixed on float body (3) top;
In the transducer part, middle transducer part and wideband rotary piezoelectric generator (11) are left-right symmetric and distribute in the middle of described; Tooth bar (8) is fixed on the intermediate support (7), and gear (9) and axle (17) rotate synchronously, utilize bearing that axle (17) is fixed on the electric machine support, and tooth bar (8) is meshing with each other with gear (9);
In the described secondary transducer part, wideband rotary piezoelectric generator (11) is by driving wheel (11a), several permanent magnets (11b), and several piezoelectric cantilevers (11c), support and securing member are formed; Described securing member is support fastening bolt (19a) and support clamp nut (19b) or support trip bolt (20); Utilize securing member to realize the fixing of support and electric machine support; Several permanent magnets (11b) uniform array at driving wheel (11a) all around; Driving wheel (11a) rotates synchronously with axle (17); The piezoelectric cantilever that several natural frequencys are different (11c) uniform array is on support, and the free end of each piezoelectric cantilever (11c) all fixedly has permanent magnet (11b); Axle (17) and support dead in line, support is fixed on the electric machine support; The alternating current that rectifier bridge (18) produces piezoelectric cantilever (11c) converts direct current to and gives load R energy supply; Circuit box (15) is installed on the upper bracket (16).
2. a kind of rotary wave energy piezoelectric generating device as claimed in claim 1 is characterized in that, in the described secondary transducer part, described support has first kind of support (11d), second kind of support (11d ') or the third support (11d "); First kind of support (11d) be uniform-distribution with all around one the circle parallel axes to several support arms; Second kind of support (11d ') be uniform-distribution with all around two the circle parallel axes to several support arms; (11d ") is uniform-distribution with several support arms that point to the axle center all around to the third support; Electric machine support has first kind of electric machine support (10), second kind of electric machine support (10 ') or the third electric machine support (10 "); Three kinds of electric machine supports all position axle (17), and in addition, first kind of electric machine support (10) utilizes fixed arm (10a) to fix first kind of support (11d) or second kind of support (11d '); Second kind of electric machine support (10 ') utilizes left fixed arm (10a ') and right fixed arm (10b ') to fix first kind of support (11d) or second kind of support (11d '); Fixed arm in the third electric machine support (10 ") utilizes (10a ") and outer fixed arm (10b ") are fixed the third support (11d ").
3. a kind of rotary wave energy piezoelectric generating device as claimed in claim 1 or 2, it is characterized in that, in the described secondary transducer part, wideband rotary piezoelectric generator (11) has 6 kinds of versions, and these 6 kinds of versions are respectively I molded breadth frequency rotary piezoelectric generator, II molded breadth rotary piezoelectric generator, III molded breadth frequency rotary piezoelectric generator, IV molded breadth frequency rotary piezoelectric generator, V molded breadth frequency rotary piezoelectric generator and VI molded breadth frequency rotary piezoelectric generator frequently; Piezoelectric cantilever (11c) natural frequency of array is all different in the wideband rotary piezoelectric generator (11) of each version;
In described I molded breadth frequency rotary piezoelectric generator, axle (17) is positioned on first kind of electric machine support (10); Utilize support fastening bolt (19a) and support clamp nut (19b) that first kind of support (11d) and first kind of electric machine support (10) are fixed together.Driving wheel (11a) is in the inboard of piezoelectric cantilever (11c) array, and driving wheel (11a) is permanent magnet (11b) radially aligned of equally distributed permanent magnet (11b) and corresponding piezoelectric cantilever beam end all around;
In described II molded breadth frequency rotary piezoelectric generator, axle (17) is positioned on first kind of electric machine support (10); Utilize support fastening bolt (19a) and support clamp nut (19b) that first kind of support (11d) and first kind of electric machine support (10) are fixed together; Driving wheel (11a) is in the left side of piezoelectric cantilever (11c) array, and driving wheel (11a) equally distributed permanent magnet (11b) is all around axially aligned with the permanent magnet (11b) of corresponding piezoelectric cantilever beam end;
In the described III molded breadth frequency rotary piezoelectric generator, axle (17) is positioned on second kind of electric machine support (10 '); Utilize support fastening bolt (19a) and support clamp nut (19b) that first kind of support (11d) and second kind of electric machine support (10 ') are fixed together; Piezoelectric cantilever (11c) array and I type support (11d) distribute about driving wheel (11a) left-right symmetric; Driving wheel (11a) equally distributed permanent magnet (11b) is all around axially aligned with the permanent magnet (11b) of corresponding piezoelectric cantilever beam end;
In described IV molded breadth frequency rotary piezoelectric generator, axle (17) is positioned on first kind of electric machine support (10); Utilize support fastening bolt (19a) and support clamp nut (19b) that first kind of electric machine support (10) and second kind of support (11d ') are fixed together; Driving wheel (11a) is in piezoelectric cantilever (11c) the array inboard of outer ring, in piezoelectric cantilever (11c) left side array of inner ring; Driving wheel (11a) is each piezoelectric cantilever beam end permanent magnet radially aligned of equally distributed permanent magnet (11b) and corresponding outer ring all around; Driving wheel (11a), driving wheel (11a) equally distributed permanent magnet (11b) are all around axially aligned with each piezoelectric cantilever beam end permanent magnet of corresponding inner ring;
In the described V molded breadth frequency rotary piezoelectric generator, axle (17) is positioned on second kind of electric machine support (10 '); With support fastening bolt (19a) and support clamp nut (19b) that second kind of electric machine support (10 ') and second kind of support (11d ') is fixing; Piezoelectric cantilever (11c) array and second kind of support (11d ') distribute about driving wheel (11a) left-right symmetric; In the structure of each side, at piezoelectric cantilever (11c) end permanent magnet (11b) and corresponding piezoelectric cantilever in the outer ring (11c) end permanent magnet (11b) radially aligned of inner ring;
In the described VI molded breadth frequency rotary piezoelectric generator, axle (17) is positioned at the third electric machine support (on 10 "); With support trip bolt (20) the third support (11 ") is fixed on the third electric machine support (10 "); Each piezoelectric cantilever (11c) is towards driving wheel (11a) pivot; (11 ") inside, driving wheel (11a) is the permanent magnet radially aligned of equally distributed permanent magnet (11b) and corresponding each piezoelectric cantilever (11c) end all around at III type support for driving wheel (11a).
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