CN105281600A - Externally arranged piston coupling linked-type piezoelectric power generating air cylinder - Google Patents
Externally arranged piston coupling linked-type piezoelectric power generating air cylinder Download PDFInfo
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- CN105281600A CN105281600A CN201510843024.8A CN201510843024A CN105281600A CN 105281600 A CN105281600 A CN 105281600A CN 201510843024 A CN201510843024 A CN 201510843024A CN 105281600 A CN105281600 A CN 105281600A
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- 229910052751 metal Inorganic materials 0.000 claims description 26
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- 239000000203 mixture Substances 0.000 claims description 11
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- 230000035939 shock Effects 0.000 abstract description 4
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- 238000000034 method Methods 0.000 description 15
- 238000010248 power generation Methods 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
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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
- H02N2/185—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using fluid streams
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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
- H02N2/183—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators using impacting bodies
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Abstract
The invention discloses an externally arranged piston coupling linked-type piezoelectric power generating air cylinder, which is designed to solve the problems of complex structure, low energy utilization rate and loud noise of the existing pneumatic piezoelectric power generating device. The piezoelectric power generating air cylinder comprises an air cylinder body and a piezoelectric power generating device, wherein the power generating device is connected to a back end of the air cylinder through a thread; the piezoelectric power generating device comprises a front end cover, a cavity body, a back end cover component, a piston and a power generating component; the back end cover component is a single-hole back end cover component or a multi-hole back end cover component; the piston is a multi-hole piston or a single-hole piston; the power generating component is deformed under the effect of the shock of the compressed air, the air pressure and the pressure fluctuation and the power generating component is recovered in low pressure; and based on the piezoelectric effect, the electric energy is produced. According to the invention, the piezoelectric power generating air cylinder has the technology advantages of simple structure, high energy utilization rate, low noise and low cost; in addition, through a rectification tank circuit, the produced energy can be collected and rectified for providing energy for nodes of Internet of things; and the piezoelectric power generating air cylinder has wide application prospect in the pneumatic technology field.
Description
Technical field
The present invention relates to a kind of external piston coupling linkage formula piezo-electric generating cylinder, belong to pneumatics field.
Background technology
Pneumatics take air compressor as power source, take compressed air as working media, carry out the engineering of energy and signal transmission, one of important means realizing automated production and Industry Control, low with its cost, pollute the advantages such as little, easy-regulating and be widely used in the fields such as processing, manufacture, automobile production.Along with the development of pneumatics, people are also more and more higher to the intelligentized requirement of pneumatic system, and the application of technology of Internet of things in pneumatic system is then realize one of intelligentized major way of pneumatics.At present, in pneumatic system, Internet of things node is made up of transducer and wireless communication module usually, its supply power mode generally adopts external circuits and powered battery, and external circuits Hui Shi pneumatic system supply line of powering is complicated, increases cost and the degree of difficulty of system maintenance; Then there is the problems such as battery volume is large, useful life is short, the frequent replacing of need in powered battery, is difficult to the requirement meeting transducer and wireless communication module continuous firing; Meanwhile, battery contains heavy metal, and serious environmental pollution is made in the improper meeting of old and useless battery treatment.
Because the energy of pneumatic system own is large, capturing pneumatic system energy is that Internet of things node energy supply has good development prospect.Existing Chinese utility model patent " pneumatic electric generator ", Authorization Notice No. is CN201898457U, authorized announcement date is 2011.07.13, a kind of pneumatic electric generator is disclosed, comprise aerating device, airtight container, control device and piezoelectric crystal, aerating device is communicated with airtight container and inflates to airtight container, control device is connected with airtight container, control device is installed near piezoelectric crystal, compressed air in airtight container is formed air-flow by control device, and by the force transmission of air-flow to piezoelectric crystal, piezoelectric crystal is made to convert mechanical energy to electric energy, for the electrical appliance be electrically connected with piezoelectric crystal.Chinese invention patent " a kind of piezoelectric generating device based on excitation of fluidic micro oscillator ", application publication number is CN102594202A, Shen Qing Publication day is 2012.07.18, disclose a kind of piezoelectric generating device based on excitation of fluidic micro oscillator, this device comprises housing, bistable fluidic, the first vibration chamber, the second vibration chamber and output circuit; First vibration chamber and the second vibration chamber are arranged symmetrically in the left and right sides of bistable fluidic; First vibration chamber and the second vibration chamber are respectively equipped with diaphragm, and diaphragm is provided with piezoelectric patches, and bistable fluidic air inlet is communicated with the exhaust outlet of pneumatic equipment.Due to the wall attachment effect of bistable fluidic, gas iterative cycles forms oscillating gas in vibration chamber, both sides, and in vibration chamber, oscillating air flow drives the diaphragm vibration on chamber, and the piezoelectric patches vibration deformation of the vibratory drive of diaphragm on it produces electric charge.There is generating device structure complexity in above-mentioned prior art, take up room large and be difficult to realize integrated with microminiaturization etc. problem; Simultaneously due to Blast Furnace Top Gas Recovery Turbine Unit (TRT) disclosed in technique scheme be adopt open environment under carry out gas shock prisoner can, there is the problems such as capacity usage ratio is low, noise is large.
Summary of the invention
In order to solve the problems such as above-mentioned pneumatic piezoelectricity generating device structure is complicated, capacity usage ratio is low, noise is large, the present invention discloses a kind of external piston coupling linkage formula piezo-electric generating cylinder.
The technical solution adopted in the present invention is: described external piston coupling linkage formula piezo-electric generating cylinder is made up of cylinder and piezoelectric generating device, described cylinder can be double-acting cylinder, described cylinder rear end cap center is provided with tapped through hole, and it is connected for screwing with the external screw thread one of chamber end cap in piezoelectric generating device one side end, realizes being fastenedly connected of cylinder and piezoelectric generating device, described piezoelectric generating device comprises chamber end cap, cavity, rear end cap assembly, piston, electrification component, described chamber end cap one side end is provided with external screw thread one, it is connected for screwing with the tapped through hole of cylinder rear end cap center, realize being fastenedly connected of cylinder and piezoelectric generating device, external screw thread one center of described chamber end cap is provided with through hole one, it is for realizing the circulation of gas between cylinder and piezoelectric generating device, described chamber end cap end side is provided with external screw thread two, it is connected for screwing with internal thread one set by cavity one side end, to realize being fastenedly connected of chamber end cap and cavity, described cavity side is provided with internal thread one, it is connected for screwing with chamber end cap one side end external screw thread two, to realize being fastenedly connected of cavity and chamber end cap, described cavity opposite side is provided with internal thread two, it is connected for screwing with the external screw thread three on the excircle of rear end cap assembly end or external screw thread, to realize being fastenedly connected of cavity and rear end cap assembly, the inner volume sidewall of described cavity is provided with through hole two, to realize the extraction of electrification component wire, described inside cavity is provided with inner volume, to realize the mounting arrangements of piston and electrification component, described electrification component is by pressing plate, metal substrate, piezoelectric patches and newel composition, described pressing plate is L shape, its front end is provided with manhole, it is fixed for the installation realizing pressing plate and perforated piston plate or single hole piston plate, described pressing plate long slab end is provided with m square through hole, m be more than or equal to 1 positive integer, it is for realizing the mounting arrangements of metal substrate, described metal substrate one end coordinates with squared counter bore set on newel, blend compounds is adhesively fixed, the other end coordinates with square through hole set on pressing plate, described metal substrate upper and lower surface is fitted with piezoelectric patches respectively, blend compounds is adhesively fixed, described piezoelectric patches is square piezoelectric patches, itself and metal substrate upper and lower surface are fitted respectively, and with being adhesively fixed, it connects wire and is drawn by through hole two set on cavity, described newel one side end center is provided with internal thread four, it is connected for screwing with holding screw, to realize being fastenedly connected of newel and single hole rear end cap or porous rear end cap, described newel cross section is n limit shape, n be more than or equal to 3 positive integer, each side of described newel is evenly provided with m squared counter bore, m be more than or equal to 1 positive integer, it is for metal substrate one end fits, blend compounds is adhesively fixed.
Described rear end cap assembly is single hole rear end cap assembly or porous rear end cap assembly, and described piston is perforated piston or single hole piston; Single hole rear end cap assembly comprises single hole rear end cap and holding screw; Described single hole rear end cap one side end excircle is provided with external screw thread three, it is connected for screwing with the internal thread two set by cavity one side end, to realize being fastenedly connected of cavity and single hole rear end cap, described single hole rear end cap the other end is provided with boss one, to realize being fastenedly connected of cavity and single hole rear end cap, described single hole rear end cap center is provided with through hole three, it is for realizing the mounting arrangements of holding screw, described holding screw, it is connected for screwing with the internal thread four of newel one side end, to realize being fastenedly connected of newel and single hole rear end cap.Perforated piston is made up of perforated piston plate and hold-down screw, described perforated piston plate is provided with perforated piston annular groove, it is for the mounting arrangements of perforated piston sealing ring, to realize being tightly connected of piston and inner volume, described perforated piston plate one side end is evenly provided with internal thread three, and it realizes being fastenedly connected by hold-down screw for perforated piston plate and pressing plate.
Porous rear end cap assembly comprises porous rear end cap and hold-down screw, described porous rear end cap one side end excircle is provided with external screw thread four structure, it is connected for screwing with the internal thread two set by cavity one side end, to realize being fastenedly connected of cavity and porous rear end cap, described porous rear end cap the other end is provided with boss two, to realize being fastenedly connected of cavity and porous rear end cap, described porous rear end cap one side end face is evenly provided with internal thread five, and it realizes being fastenedly connected by hold-down screw for porous rear end cap and pressing plate.
Single hole piston is made up of single hole piston plate and holding screw, described single hole piston plate is provided with single hole piston ring connected in star, it is for the mounting arrangements of single hole piston packing ring, to realize being tightly connected of piston and inner volume, described single hole piston plate center is provided with through hole four, and it is for realizing the mounting arrangements of holding screw, described holding screw, it is connected for screwing with the internal thread four of newel one side end, to realize being fastenedly connected of newel and single hole piston plate.
The invention has the beneficial effects as follows: the present invention can capture the kinetic energy of gas shock and the pressure energy of Compressed Gas, and power generation process is divided into three phases: impact process generating, pressure maintaining period generating and the generating that resets.Namely impact process generating makes its extrusion metal substrate by the piston in gas shock piezoelectric generating device, and metal substrate drives piezoelectric patches to produce deformation thus produces electric energy; Pressure maintaining period generating is namely when Compressed Gas makes cylinder proper motion, the pressure oscillation produced in motion process makes piston press metal substrate produce deformation, thus drive piezoelectric patches deformation, when cylinder internal gas pressure reaches stable state, gas pressure makes piezoelectric patches deformation reach maximum thus produces maximum electricity; Namely the generating that resets reduces rapidly electrification component is resetted at exhaust phase cavity pressure, and in reseting procedure, piezoelectric patches produces negative voltage, completes the power generation process of one-period when negative voltage is reduced to zero.This process effectively adds waveform bandwidth thus increases the energy output of electrification component.The present invention has that structure is simple, capacity usage ratio is high, noise is little and the technical advantage such as cost is low, the electric energy of generation can be compiled, for Internet of things node carries out energy supply by energy storage rectifier circuit simultaneously.This invention has broad application prospects in pneumatics field.
Accompanying drawing explanation
Figure 1 shows that the external piston coupling linkage formula piezo-electric generating structural representation of air cylinder that the present invention proposes;
Figure 2 shows that the structural representation of cylinder in the external piston coupling linkage formula piezo-electric generating cylinder that the present invention proposes;
Figure 3 shows that the cutaway view of piezoelectric generating device in the external piston coupling linkage formula piezo-electric generating cylinder that the present invention proposes;
Figure 4 shows that the cutaway view of chamber end cap in the external piston coupling linkage formula piezo-electric generating cylinder that the present invention proposes;
Figure 5 shows that the cutaway view of cavity in the external piston coupling linkage formula piezo-electric generating cylinder that the present invention proposes;
Figure 6 shows that the cutaway view of single hole rear end cap assembly in the external piston coupling linkage formula piezo-electric generating cylinder that the present invention proposes;
Figure 7 shows that the cutaway view of perforated piston in the external piston coupling linkage formula piezo-electric generating cylinder that the present invention proposes;
Figure 8 shows that the cutaway view of electrification component in the external piston coupling linkage formula piezo-electric generating cylinder that the present invention proposes;
Figure 9 shows that the end view of electrification component in the external piston coupling linkage formula piezo-electric generating cylinder that the present invention proposes;
Figure 10 shows that the cutaway view of porous rear end cap assembly in the external piston coupling linkage formula piezo-electric generating cylinder that the present invention proposes;
Figure 11 shows that the cutaway view of single hole piston in the external piston coupling linkage formula piezo-electric generating cylinder that the present invention proposes.
Embodiment
Embodiment one: composition graphs 1 ~ Fig. 9 illustrates present embodiment.
Present embodiment provides a kind of specific embodiments of external piston coupling linkage formula piezo-electric generating cylinder.Described external piston coupling linkage formula piezo-electric generating cylinder is made up of cylinder 1 and piezoelectric generating device 2;
Described cylinder 1 can be double-acting cylinder (SMC company MBB50-100 double-acting cylinder); Described cylinder 1 rear end cap center is provided with tapped through hole 1-1, and it is connected for screwing with external screw thread one 2-1-1 of chamber end cap 2-1 mono-side end in piezoelectric generating device 2, realizes being fastenedly connected of cylinder 1 and piezoelectric generating device 2.
Described piezoelectric generating device 2 comprises chamber end cap 2-1, cavity 2-2, rear end cap assembly 2-3, piston 2-4, electrification component 2-5.
Described chamber end cap 2-1 mono-side end is provided with external screw thread one 2-1-1, and it is connected for screwing with the tapped through hole 1-1 of cylinder 1 rear end cap center, realizes being fastenedly connected of cylinder 1 and piezoelectric generating device 2; The external screw thread one 2-1-1 center of described chamber end cap 2-1 is provided with through hole one 2-1-2, and it is for realizing the circulation of gas between cylinder 1 and piezoelectric generating device 2; Described chamber end cap 2-1 end side is provided with external screw thread two 2-1-3, and it is connected for screwing with internal thread one 2-2-1 set by cavity 2-2 mono-side end, to realize being fastenedly connected of chamber end cap 2-1 and cavity 2-2.
Described cavity 2-2 side is provided with internal thread one 2-2-1, and it is connected for screwing with chamber end cap 2-1 mono-side end external screw thread two 2-1-3, to realize being fastenedly connected of cavity 2-2 and chamber end cap 2-1; Described cavity 2-2 opposite side is provided with internal thread two 2-2-2, and it is connected for screwing with external screw thread three 2-3-1-1 on the excircle of single hole rear end cap 2-3-1 end, to realize being fastenedly connected of cavity 2-2 and single hole rear end cap 2-3-1; The inner volume 2-2-4 sidewall of described cavity 2-2 is provided with through hole two 2-2-3, to realize the extraction of electrification component 2-5 wire; Described cavity 2-2 inside is provided with inner volume 2-2-4, to realize the mounting arrangements of piston 2-4 and electrification component 2-5.
Described rear end cap assembly 2-3 is a kind of single hole rear end cap assembly, and it comprises single hole rear end cap 2-3-1 and holding screw 2-3-2; Described single hole rear end cap 2-3-1 mono-side end excircle is provided with external screw thread three 2-3-1-1, and it is connected for screwing with internal thread two 2-2-2 set by cavity 2-2 mono-side end, to realize being fastenedly connected of cavity 2-2 and single hole rear end cap 2-3-1; Described single hole rear end cap 2-3-1 the other end is provided with boss one 2-3-1-2, to realize being fastenedly connected of cavity 2-2 and single hole rear end cap 2-3-1; Described single hole rear end cap 2-3-1 center is provided with through hole three 2-3-1-3, and it is for realizing the mounting arrangements of holding screw 2-3-2; Described holding screw 2-3-2, it is connected for screwing with internal thread four 2-5-4-1 of newel 2-5-4 mono-side end, to realize being fastenedly connected of newel 2-5-4 and single hole rear end cap 2-3-1.
Described piston 2-4 is a kind of perforated piston, and it is made up of perforated piston plate 2-4-1 and hold-down screw 2-4-2; Described perforated piston plate 2-4-1 is provided with perforated piston annular groove 2-4-1-2, and it is for the mounting arrangements of perforated piston sealing ring 2-4-1-1, to realize being tightly connected of piston 2-4 and inner volume 2-2-4; Described perforated piston plate 2-4-1 mono-side end is evenly provided with internal thread three 2-4-1-3, and it realizes being fastenedly connected by hold-down screw 2-4-2 for perforated piston plate 2-4-1 and pressing plate 2-5-1.
Described electrification component 2-5 is made up of pressing plate 2-5-1, metal substrate 2-5-2, piezoelectric patches 2-5-3 and newel 2-5-4, described pressing plate 2-5-1 is L shape, its front end is provided with manhole 2-5-1-1, and it is fixed for the installation realizing pressing plate 2-5-1 and perforated piston plate 2-4-1; Described pressing plate 2-5-1 long slab end is provided with m square through hole 2-5-1-2, m be more than or equal to 1 positive integer, it is for realizing the mounting arrangements of metal substrate 2-5-2; Described metal substrate 2-5-2 one end coordinates with squared counter bore 2-5-4-2 set on newel 2-5-4, and is adhesively fixed with epoxide-resin glue; The other end coordinates with square through hole 2-5-1-2 set on pressing plate 2-5-1; Described metal substrate 2-5-2 upper and lower surface is fitted with piezoelectric patches 2-5-3 respectively, and is adhesively fixed with epoxide-resin glue; Described piezoelectric patches 2-5-3 is square piezoelectric patches, and itself and metal substrate 2-5-2 upper and lower surface are fitted respectively, and are adhesively fixed with epoxide-resin glue, and it connects wire and is drawn by through hole two 2-2-3 set on cavity 2-2; Described newel 2-5-4 mono-side end center is provided with internal thread four 2-5-4-1, and it is connected for screwing with holding screw 2-3-2, to realize being fastenedly connected of newel 2-5-4 and single hole rear end cap 2-3-1; Described newel 2-5-4 cross section is n limit shape, n be more than or equal to 3 positive integer, described each side of newel 2-5-4 is evenly provided with m squared counter bore 2-5-4-2, m be more than or equal to 1 positive integer, it for metal substrate 2-5-2 one end fits, and is adhesively fixed with epoxide-resin glue.
The concrete electricity generating principle of present embodiment: the Axial Loads utilizing pneumatic compression air to produce in piston 2-4 upper surface, thus makes metal substrate 2-5-2 produce Bending Deformation, thus excites piezoelectric patches 2-5-3 to produce electric energy.Compressed air makes cylinder 1 normally work, in the motion process of cylinder 1, because cylinder 1 internal capacity changes, thus cause Compressed Gas to produce fluctuation, this wave characteristic can make astable compressed air constantly piston 2-4 be applied to the active force of alternation, make its extrusion metal substrate 2-5-2 generation deformation repeatedly, this process effectively adds waveform bandwidth thus increases the energy output of piezoelectric patches 2-5-3.The power generation process of external piston coupling linkage formula piezo-electric generating cylinder can be divided into three phases: impact process generating, pressure maintaining period generating and reseting procedure generating.Concrete power generation process is as follows: impact power generating stage, the gas that cylinder 1 is flowed into by rear end cap pore, a part enters piezoelectric generating device 2 by the through hole 2-1-2 of cavity body structure 2-1 mono-side end, the direct impact piston 2-4 of air-flow entered in Blast Furnace Top Gas Recovery Turbine Unit (TRT) 2 makes its extrusion metal substrate 2-5-2, metal substrate 2-5-2 drives piezoelectric patches 2-5-3 to produce deformation, thus produces electric energy; Pressurize power generating stage, along with the increase entering cylinder 1 gas flow, compressed air makes cylinder 1 proper motion, unstable gas pulsation can be produced in cylinder 1 and piezoelectric generating device 2 during piston movement in cylinder 1, constantly piston 2-4 is applied to the active force of alternation, make it drive piezoelectric patches 2-5-3 generation deformation repeatedly, when cylinder 1 internal gas pressure reaches stable state by metal substrate 2-5-2, piezoelectric patches 2-5-3 produces deformation and reaches maximum, and piezoelectric patches 2-5-3 produces maximum forward voltage; Reset generating is when cylinder 1 is in the exhaust of rear end cap pore, gas is discharged by the through hole 2-1-2 of cavity body structure 2-1 mono-side end, piezoelectric generating device 2 air pressure inside reduces, electrification component 2-5 resets, thus have negative electricity to export, when negative voltage is reduced to zero, the present invention completes the power generation process of one-period.Repeat the above-mentioned course of work, uninterruptable power generation of the present invention can be realized.
Embodiment two: present embodiment is described in conjunction with Figure 10 and Figure 11.
Present embodiment provides the specific embodiments of another kind of external piston coupling linkage formula piezo-electric generating cylinder.Its structure composition is identical with embodiment one with connected mode, and difference is the structure composition of piston 2-4 and rear end cap assembly 2-3; Described rear end cap assembly 2-3 is a kind of porous rear end cap assembly, it comprises porous rear end cap 2-3-3 and hold-down screw 2-4-2, described porous rear end cap 2-3-3 mono-side end excircle is provided with external screw thread four 2-3-3-1 structure, it is connected for screwing with internal thread two 2-2-2 set by cavity 2-2 mono-side end, to realize being fastenedly connected of cavity 2-2 and porous rear end cap 2-3-3; Described porous rear end cap 2-3-3 the other end is provided with boss two 2-3-3-2, to realize being fastenedly connected of cavity 2-2 and porous rear end cap 2-3-3; Described porous rear end cap 2-3-3 mono-side end face is evenly provided with internal thread five 2-3-3-3, and it realizes being fastenedly connected by hold-down screw 2-4-2 for porous rear end cap 2-3-3 and pressing plate 2-5-1.
Described piston 2-4 is a kind of single hole piston, and it is made up of single hole piston plate 2-4-3 and holding screw 2-3-2; Described single hole piston plate 2-4-3 is provided with single hole piston ring connected in star 2-4-3-2, and it is for the mounting arrangements of single hole piston packing ring 2-4-3-1, to realize being tightly connected of piston 2-4 and inner volume 2-2-4; Described single hole piston plate 2-4-3 center is provided with through hole four 2-4-3-3, and it is for realizing the mounting arrangements of holding screw 2-3-2; Described holding screw 2-3-2, it is connected for screwing with internal thread four 2-5-4-1 of newel 2-5-4 mono-side end, to realize being fastenedly connected of newel 2-5-4 and single hole piston plate 2-4-3.
The concrete electricity generating principle of present embodiment is identical with the electricity generating principle of embodiment one.
Claims (3)
1. external piston coupling linkage formula piezo-electric generating cylinder, is characterized in that: described external piston coupling linkage formula piezo-electric generating cylinder is made up of cylinder (1) and piezoelectric generating device (2), described cylinder (1) rear end cap center is provided with tapped through hole (1-1), it is connected for screwing with the external screw thread one (2-1-1) of chamber end cap (2-1) side end in piezoelectric generating device (2), realizes being fastenedly connected of cylinder (1) and piezoelectric generating device (2), described piezoelectric generating device (2) comprises chamber end cap (2-1), cavity (2-2), rear end cap assembly (2-3), piston (2-4), electrification component (2-5), described chamber end cap (2-1) one side end is provided with external screw thread one (2-1-1), it is connected for screwing with the tapped through hole (1-1) of cylinder (1) rear end cap center, realize being fastenedly connected of cylinder (1) and piezoelectric generating device (2), external screw thread one (2-1-1) center of described chamber end cap (2-1) is provided with through hole one (2-1-2), it is for realizing the circulation of gas between cylinder (1) and piezoelectric generating device (2), described chamber end cap (2-1) end side is provided with external screw thread two (2-1-3), it is connected for screwing with internal thread one (2-2-1) set by cavity (2-2) side end, to realize being fastenedly connected of chamber end cap (2-1) and cavity (2-2), described cavity (2-2) side is provided with internal thread one (2-2-1), it is connected for screwing with chamber end cap (2-1) side end external screw thread two (2-1-3), to realize being fastenedly connected of cavity (2-2) and chamber end cap (2-1), described cavity (2-2) opposite side is provided with internal thread two (2-2-2), it is connected for screwing with the external screw thread three (2-3-1-1) on the excircle of rear end cap assembly (2-3) end or external screw thread four (2-3-3-1), to realize being fastenedly connected of cavity (2-2) and rear end cap assembly (2-3), inner volume (2-2-4) sidewall of described cavity (2-2) is provided with through hole two (2-2-3), to realize the extraction of electrification component (2-5) wire, described cavity (2-2) inside is provided with inner volume (2-2-4), to realize the mounting arrangements of piston (2-4) and electrification component (2-5), described electrification component (2-5) is by pressing plate (2-5-1), metal substrate (2-5-2), piezoelectric patches (2-5-3) and newel (2-5-4) composition, described pressing plate (2-5-1) is L shape, its front end is provided with manhole (2-5-1-1), it is fixed with the installation of perforated piston plate (2-4-1) or single hole piston plate (2-4-3) for realizing pressing plate (2-5-1), described pressing plate (2-5-1) long slab end is provided with m square through hole (2-5-1-2), m be more than or equal to 1 positive integer, it is for realizing the mounting arrangements of metal substrate (2-5-2), described metal substrate (2-5-2) one end coordinates with the upper set squared counter bore (2-5-4-2) of newel (2-5-4), blend compounds is adhesively fixed, the other end coordinates with the upper set square through hole (2-5-1-2) of pressing plate (2-5-1), described metal substrate (2-5-2) upper and lower surface is fitted with piezoelectric patches (2-5-3) respectively, blend compounds is adhesively fixed, described piezoelectric patches (2-5-3) is square piezoelectric patches, itself and metal substrate (2-5-2) upper and lower surface are fitted respectively, and with being adhesively fixed, it connects wire and is drawn by the upper set through hole two (2-2-3) of cavity (2-2), described newel (2-5-4) one side end center is provided with internal thread four (2-5-4-1), it is connected for screwing with holding screw (2-3-2), to realize being fastenedly connected of newel (2-5-4) and single hole rear end cap (2-3-1) or porous rear end cap (2-3-3), described newel (2-5-4) cross section is positive n limit shape, n be more than or equal to 3 positive integer, described newel (2-5-4) each side is evenly provided with m squared counter bore (2-5-4-2), m be more than or equal to 1 positive integer, it is for metal substrate (2-5-2) one end fits, blend compounds is adhesively fixed.
2. external piston coupling linkage formula piezo-electric generating cylinder according to claim 1, is characterized in that: described rear end cap assembly (2-3) is a kind of single hole rear end cap assembly, and it comprises single hole rear end cap (2-3-1) and holding screw (2-3-2), described single hole rear end cap (2-3-1) side end excircle is provided with external screw thread three (2-3-1-1), it is connected for screwing with the internal thread two (2-2-2) set by cavity (2-2) side end, to realize being fastenedly connected of cavity (2-2) and single hole rear end cap (2-3-1), described single hole rear end cap (2-3-1) the other end is provided with boss one (2-3-1-2), to realize being fastenedly connected of cavity (2-2) and single hole rear end cap (2-3-1), described single hole rear end cap (2-3-1) center is provided with through hole three (2-3-1-3), it is for realizing the mounting arrangements of holding screw (2-3-2), described holding screw (2-3-2), it is connected for screwing with the internal thread four (2-5-4-1) of newel (2-5-4) side end, to realize being fastenedly connected of newel (2-5-4) and single hole rear end cap (2-3-1), described piston (2-4) is a kind of perforated piston, it is made up of perforated piston plate (2-4-1) and hold-down screw (2-4-2), described perforated piston plate (2-4-1) is provided with perforated piston annular groove (2-4-1-2), it is for the mounting arrangements of perforated piston sealing ring (2-4-1-1), to realize being tightly connected of piston (2-4) and inner volume (2-2-4), described perforated piston plate (2-4-1) side end is evenly provided with internal thread three (2-4-1-3), it realizes being fastenedly connected by hold-down screw (2-4-2) for perforated piston plate (2-4-1) and pressing plate (2-5-1).
3. external piston coupling linkage formula piezo-electric generating cylinder according to claim 1, it is characterized in that: described rear end cap assembly (2-3) is a kind of porous rear end cap assembly, it comprises porous rear end cap (2-3-3) and hold-down screw (2-4-2), described porous rear end cap (2-3-3) side end excircle is provided with external screw thread four (2-3-3-1) structure, it is connected for screwing with the internal thread two (2-2-2) set by cavity (2-2) side end, to realize being fastenedly connected of cavity (2-2) and porous rear end cap (2-3-3), described porous rear end cap (2-3-3) the other end is provided with boss two (2-3-3-2), to realize being fastenedly connected of cavity (2-2) and porous rear end cap (2-3-3), described porous rear end cap (2-3-3) side end face is evenly provided with internal thread five (2-3-3-3), it realizes being fastenedly connected by hold-down screw (2-4-2) for porous rear end cap (2-3-3) and pressing plate (2-5-1), described piston (2-4) is a kind of single hole piston, it is made up of single hole piston plate (2-4-3) and holding screw (2-3-2), described single hole piston plate (2-4-3) is provided with single hole piston ring connected in star (2-4-3-2), it is for the mounting arrangements of single hole piston packing ring (2-4-3-1), to realize being tightly connected of piston (2-4) and inner volume (2-2-4), described single hole piston plate (2-4-3) center is provided with through hole four (2-4-3-3), it is for realizing the mounting arrangements of holding screw (2-3-2), described holding screw (2-3-2), it is connected for screwing with the internal thread four (2-5-4-1) of newel (2-5-4) side end, to realize being fastenedly connected of newel (2-5-4) and single hole piston plate (2-4-3).
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| CN105281600B (en) | 2017-07-18 |
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