CN110404752B - Industrial high-power multidirectional amplitude regulation and control ultrasonic vibration device - Google Patents
Industrial high-power multidirectional amplitude regulation and control ultrasonic vibration device Download PDFInfo
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- CN110404752B CN110404752B CN201910715896.4A CN201910715896A CN110404752B CN 110404752 B CN110404752 B CN 110404752B CN 201910715896 A CN201910715896 A CN 201910715896A CN 110404752 B CN110404752 B CN 110404752B
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Abstract
The invention relates to an industrial ultrasonic transducer, in particular to an industrial high-power multidirectional amplitude regulation ultrasonic vibration device. The invention solves the problems of low output power, difficult long-time work, limited total power, poor use flexibility and low electromechanical conversion efficiency of the existing industrial ultrasonic transducer. An industrial high-power multidirectional amplitude regulation ultrasonic vibration device comprises a longitudinal vibration ultrasonic vibrator and a multidirectional tuning piezoelectric array element; the longitudinal vibration ultrasonic vibrator comprises a piezoelectric main body, a circular upper end cover, a circular lower end cover, a prestressed bolt, a disc spring, a prestressed nut, a first circular sound insulation ring, a second circular sound insulation ring, a cylindrical dust cover, a circular truncated cone deformation amplitude rod and a circular ring-shaped section disc; the piezoelectric body is formed by laminating four piezoelectric units from top to bottom. The invention is suitable for various ultrasonic processing fields.
Description
Technical Field
The invention relates to an industrial ultrasonic transducer, in particular to an industrial high-power multidirectional amplitude regulation ultrasonic vibration device.
Background
The industrial ultrasonic transducer is widely applied to the ultrasonic processing fields of ultrasonic cleaning, ultrasonic welding, ultrasonic stirring, ultrasonic crushing, ultrasonic emulsification, ultrasonic degassing, ultrasonic atomization, ultrasonic impregnation, ultrasonic agglomeration, ultrasonic-promoted chemical reaction, electroplating, material fatigue test and the like. The existing industrial ultrasonic transducer has the following problems due to the limit of the structure thereof: first, the output end of the existing industrial ultrasonic transducer has small amplitude, which causes the problem of low output power. Secondly, the existing industrial ultrasonic transducer generates serious heat after working for a long time, so that the existing industrial ultrasonic transducer is not suitable for working for a long time. Thirdly, the existing industrial ultrasonic transducer can only be matched with one ultrasonic power supply, so that the input power of the ultrasonic transducer is limited, the vibration mode is not controllable, and the total power of the ultrasonic transducer is limited and the use flexibility is poor. Fourthly, the prestressing force of the existing industrial ultrasonic transducer is usually provided by a single prestressing bolt, so that the piezoelectric crystal is stressed unevenly, and the electromechanical conversion efficiency of the piezoelectric crystal is low. Therefore, a brand new industrial ultrasonic transducer needs to be invented to solve the problems that the existing industrial ultrasonic transducer is low in output power, not suitable for long-time work, limited in overall power, poor in use flexibility and low in electromechanical conversion efficiency.
Disclosure of Invention
The invention provides an industrial high-power multidirectional amplitude regulation and control ultrasonic vibration device, which aims to solve the problems that the conventional industrial ultrasonic transducer is low in output power, not suitable for long-time work, limited in total power, poor in use flexibility and low in electromechanical conversion efficiency.
The invention is realized by adopting the following technical scheme:
an industrial high-power multidirectional amplitude regulation ultrasonic vibration device comprises a longitudinal vibration ultrasonic vibrator and a multidirectional tuning piezoelectric array element;
the longitudinal vibration ultrasonic vibrator comprises a piezoelectric main body, a circular upper end cover, a circular lower end cover, a prestressed bolt, a disc spring, a prestressed nut, a first circular sound insulation ring, a second circular sound insulation ring, a cylindrical dust cover, a circular truncated cone deformation amplitude rod and a circular ring-shaped section disc;
the piezoelectric main body is formed by laminating four piezoelectric units from top to bottom; each piezoelectric unit comprises a circular heat-absorbing insulating pad, five circular relaxor ferroelectric single crystal wafers, five circular electrode wafers, a strip-shaped electrode wafer and two V-shaped electrode wafers;
the end face of the circular heat absorption insulating pad is respectively provided with five circular mounting holes in a penetrating way; the first round mounting hole is positioned in the center of the end face of the round heat absorption insulating pad; the second to fifth circular mounting holes are all positioned at the edge of the end face of the circular heat absorption insulating pad, and the second to fifth circular mounting holes are arranged around the axis of the circular heat absorption insulating pad at equal intervals; five circular relaxor ferroelectric single crystal wafers are correspondingly embedded in the five circular mounting holes one by one; the lower end face of each circular relaxor ferroelectric single crystal wafer is respectively provided with a plurality of annular cutting seams and a plurality of strip-shaped cutting seams; the axes of the circular ring-shaped cutting seams are overlapped; each strip-shaped joint seam is positioned at the inner side of the first circular joint seam, and two ends of each strip-shaped joint seam are communicated with the first circular joint seam; each strip-shaped cutting seam is arranged in parallel at equal intervals; polymer decoupling materials are filled in each circular joint seam and each strip-shaped joint seam; five circular electrode slices are correspondingly stacked on the upper end surfaces of the five circular relaxor ferroelectric single crystal slices one by one; the strip-shaped electrode plates and the two V-shaped electrode plates are laminated on the upper end surface of the circular heat absorption insulating pad; the front end face of the strip-shaped electrode plate is fixed with the side face of the first circular electrode plate; the two V-shaped electrode plates are bilaterally symmetrical, and the openings of the two V-shaped electrode plates are opposite to each other; two tail end faces of the first V-shaped electrode plate are respectively fixed with the side face of the second circular electrode plate and the side face of the third circular electrode plate; two tail end faces of the second V-shaped electrode plate are respectively fixed with the side face of the fourth circular electrode plate and the side face of the fifth circular electrode plate;
the lower end face of the circular upper end cover is in contact with the upper end face of the piezoelectric main body; the upper end of the side surface of the circular upper end cover is provided with a first circular boss in an extending manner; the end face of the first circular boss is provided with a plurality of first counter bores in a penetrating manner, and the first counter bores are arranged around the axis of the circular upper end cover; the head of each first counter sink is upward; the lower end face of the first circular boss is provided with a first circular groove, and the first circular grooves are positioned at the outer sides of the first counter bores; the upper end face of the circular lower end cover is in contact with the lower end face of the piezoelectric main body; a second circular boss extends from the upper end of the side surface of the circular lower end cover; the end surface of the second circular boss is provided with a plurality of second counter bores in a penetrating way; the number of the second counter sink holes is consistent with that of the first counter sink holes, and each second counter sink hole is opposite to each first counter sink hole one by one; the head of each second counter bore faces downwards; a second circular groove is formed in the upper end face of the second circular boss, and the second circular groove is opposite to the first circular groove; a first cylindrical boss extends from the center of the lower end face of the circular lower end cover, and an external thread is arranged on the side face of the first cylindrical boss; the number of the prestressed bolts is consistent with that of the second counter bores; each prestressed bolt penetrates through each second counter sink and each first counter sink in a one-to-one correspondence manner, and the head of each prestressed bolt is located at the head of each second counter sink in a one-to-one correspondence manner; the number of the disc springs is consistent with that of the prestressed bolts; each disc spring is sleeved on each prestressed bolt in a one-to-one corresponding mode, and each disc spring is located at the head of each first counter sink in a one-to-one corresponding mode; the number of the prestressed nuts is consistent with that of the prestressed bolts; the prestressed nuts are screwed on the prestressed bolts in a one-to-one correspondence manner, and the prestressed nuts press the disc springs in a one-to-one correspondence manner; the first circular sound insulation ring is embedded in the first circular groove; the second circular sound insulating ring is embedded in the second circular groove; the upper end of the inner side surface of the cylindrical dust cover is fixedly matched with the outer side surface of the first circular boss; the lower end of the inner side surface of the cylindrical dust cover is fixedly matched with the outer side surface of the second circular boss; four threading holes are penetratingly formed in the middle of the side face of the cylindrical dust cover, and the threading holes are arranged around the axis of the cylindrical dust cover; the thick end of the circular truncated cone-shaped amplitude-changing rod faces upwards, and the thin end of the circular truncated cone-shaped amplitude-changing rod faces downwards; a first blind screw hole is formed in the center of the upper end face of the circular truncated cone-shaped amplitude transformer, and the circular truncated cone-shaped amplitude transformer is screwed on the first cylindrical boss through the first blind screw hole; the lower end surface of the circular truncated cone-shaped amplitude transformer is provided with three circular blind holes which are arranged around the axis of the circular truncated cone-shaped amplitude transformer at equal intervals; a second cylindrical boss extends from the center of the bottom of each of the three round blind holes; the side surfaces of the three second cylindrical bosses are provided with external threads; the inner side surface of the circular ring-shaped section disc and the middle part of the side surface of the circular table amplitude-changing rod are fixed into a whole;
the multi-directional tuning piezoelectric array element comprises a cylindrical connecting rod, a first cylindrical titanium alloy block, a first circular piezomagnetic material sheet, a second cylindrical titanium alloy block, a second circular piezomagnetic material sheet, a third cylindrical titanium alloy block and a composite amplitude transformer;
the number of the cylindrical connecting rods is three; the centers of the upper end surfaces of the three cylindrical connecting rods are respectively provided with a second blind screw hole, and the three cylindrical connecting rods are screwed on the three second cylindrical bosses through the three second blind screw holes respectively; the lower end surfaces of the three cylindrical connecting rods are all annular step surfaces with low middles and high peripheries; the number of the first cylindrical titanium alloy blocks is three; the upper end surfaces of the three first cylindrical titanium alloy blocks are all annular step surfaces with high middles and low peripheries; the upper end surfaces of the three first cylindrical titanium alloy blocks are respectively and fixedly matched with the lower end surfaces of the three cylindrical connecting rods; the number of the first circular piezomagnetic material pieces is three; the centers of the upper end faces of the three first circular piezomagnetic material sheets are respectively fixed with the lower end faces of the three first cylindrical titanium alloy blocks; the number of the second cylindrical titanium alloy blocks is three; the upper end surfaces of the three second cylindrical titanium alloy blocks are respectively fixed with the centers of the lower end surfaces of the three first circular piezomagnetic material sheets; the number of the second circular piezomagnetic material pieces is three; the centers of the upper end faces of the three second circular piezomagnetic material sheets are respectively fixed with the lower end faces of the three second cylindrical titanium alloy blocks; the number of the third cylindrical titanium alloy blocks is three; the upper end surfaces of the three third cylindrical titanium alloy blocks are respectively fixed with the centers of the lower end surfaces of the three second circular piezomagnetic material sheets; the lower end surfaces of the three third cylindrical titanium alloy blocks are all annular step surfaces with high middles and low peripheries; the number of the composite amplitude transformer rods is three; the upper end surfaces of the three composite amplitude transformer rods are all annular step surfaces with low middles and high peripheries; the upper end surfaces of the three composite amplitude transformer rods are respectively and fixedly matched with the lower end surfaces of the three third cylindrical titanium alloy blocks.
When the ultrasonic generator works, three ultrasonic power supplies are selected. One output end of the first ultrasonic power supply is connected with the strip-shaped electrode plate of the first piezoelectric unit and the strip-shaped electrode plate of the third piezoelectric unit respectively, and the other output end of the first ultrasonic power supply is connected with the strip-shaped electrode plate of the second piezoelectric unit and the strip-shaped electrode plate of the fourth piezoelectric unit respectively. One output end of the second ultrasonic power supply is connected with the first V-shaped electrode plate of the first piezoelectric unit and the first V-shaped electrode plate of the third piezoelectric unit respectively, and the other output end of the second ultrasonic power supply is connected with the first V-shaped electrode plate of the second piezoelectric unit and the first V-shaped electrode plate of the fourth piezoelectric unit respectively. One output end of the third ultrasonic power supply is respectively connected with the second V-shaped electrode plate of the first piezoelectric unit and the second V-shaped electrode plate of the third piezoelectric unit, and the other output end of the third ultrasonic power supply is respectively connected with the second V-shaped electrode plate of the second piezoelectric unit and the second V-shaped electrode plate of the fourth piezoelectric unit. The specific working process is as follows: if the first ultrasonic power supply is started, one path of ultrasonic frequency electric signals output by the first ultrasonic power supply is transmitted to the first circular electrode plate through the strip-shaped electrode plates of the four piezoelectric units. If the second ultrasonic power supply is started, one path of ultrasonic frequency electric signals output by the second ultrasonic power supply is transmitted to the second circular electrode plate and the third circular electrode plate through the first V-shaped electrode plates of the four piezoelectric units. If the third ultrasonic power supply is started, one path of ultrasonic frequency electric signals output by the third ultrasonic power supply is transmitted to the fourth circular electrode plate and the fifth circular electrode plate through the second V-shaped electrode plates of the four piezoelectric units. Under the action of three (or one or two) ultrasonic frequency electric signals, all (or part) of the circular relaxor ferroelectric single crystal chips of the four piezoelectric units generate inverse piezoelectric effect, and longitudinal ultrasonic frequency vibration is output under the action of the inverse piezoelectric effect. The longitudinal ultrasonic frequency vibration is transmitted downwards to the round platform amplitude transformer through the round lower end cover, is primarily amplified through the round platform amplitude transformer, is transmitted downwards to the three composite amplitude transformers through the three cylindrical connecting rods, the three first cylindrical titanium alloy blocks, the three first round magnetic material pressing sheets, the three second cylindrical titanium alloy blocks, the three second round magnetic material pressing sheets and the three third round titanium alloy blocks in sequence, and is output after being secondarily amplified through the three composite amplitude transformers. In the process, the magnetic permeability of the three first circular piezomagnetic material pieces and the magnetic permeability of the three second circular piezomagnetic material pieces can be adjusted by using an external magnetic field, so that the three first circular piezomagnetic material pieces and the three second circular piezomagnetic material pieces are deformed, and the output frequency of the ultrasonic power supply is dynamically matched with the ultrasonic power supply. The circular ring-shaped cutting seams, the strip-shaped cutting seams and the polymer decoupling material filled in the cutting seams can effectively inhibit the stray mode of the circular relaxation ferroelectric single crystal wafer and effectively improve the energy conversion efficiency of the circular relaxation ferroelectric single crystal wafer in the thickness direction, so that the amplitude of the output end of the invention is effectively increased. Each circular endothermic insulating pad can effectively absorb heat generated by each circular relaxor ferroelectric single crystal wafer in operation. The first circular sound-proof ring and the second circular sound-proof ring can effectively prevent longitudinal ultrasonic frequency vibration from being transmitted to the periphery.
Based on the process, compared with the existing industrial ultrasonic transducer, the industrial high-power multidirectional amplitude regulation and control ultrasonic vibration device has the following advantages by adopting a novel structure: firstly, the circular relaxor ferroelectric single crystal wafer with the kerf and the polymer decoupling material is adopted as the piezoelectric crystal, so that the amplitude of the output end is effectively increased, and the output power is effectively improved. Secondly, the circular heat-absorbing insulating pad is adopted to absorb the heat generated by the circular relaxor ferroelectric single crystal wafer in the vibration process, so that the phenomenon of serious heating is effectively avoided, and the circular relaxor ferroelectric single crystal wafer is suitable for long-time work. Thirdly, the invention can be matched with three ultrasonic power supplies which work independently, thereby not only effectively improving the input power, but also realizing the vibration mode control by controlling the starting number of the ultrasonic power supplies, thereby not only effectively improving the overall power, but also effectively improving the use flexibility. Fourthly, the prestress of the invention is provided by a plurality of prestress bolts and the disk spring together, so that the stress of the piezoelectric crystal becomes uniform, and the electromechanical conversion efficiency is effectively improved. In addition, the invention realizes the dynamic matching of the self output frequency and the ultrasonic power supply by adopting the multidirectional tuning piezoelectric array element with the piezoelectric material sheet, thereby effectively avoiding the self non-work or the burning of the ultrasonic power supply caused by the drift of the output frequency.
Further, the longitudinal vibration ultrasonic vibrator also comprises a plurality of annular strain gauge type wireless pressure sensors; the number of the ring-shaped strain gauge type wireless pressure sensors is consistent with that of the disc springs; each annular strain gauge type wireless pressure sensor is sleeved on each prestressed bolt in a one-to-one correspondence manner, and each annular strain gauge type wireless pressure sensor is located at the head of each first counter sink in a one-to-one correspondence manner; and the annular strain gauge type wireless pressure sensors are correspondingly positioned below the disc springs one by one. When the circular relaxation ferroelectric single crystal wafer stress test device works, each circular strain gauge type wireless pressure sensor collects prestress signals in real time and sends the collected prestress signals to the computer for display in real time, and the computer can judge whether the circular relaxation ferroelectric single crystal wafer is stressed uniformly in real time according to the prestress signals.
Further, the density of the circular upper end cap is greater than that of the circular lower end cap. During operation, the design can effectively prevent longitudinal ultrasonic frequency vibration from being transmitted upwards through the circular upper end cover.
The ultrasonic transducer has the advantages of reasonable structure and ingenious design, effectively solves the problems of low output power, difficulty in long-time work, limited overall power, poor use flexibility and low electromechanical conversion efficiency of the conventional industrial ultrasonic transducer, and is suitable for various ultrasonic processing fields.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of a disc spring and circular strain gauge type wireless pressure sensor in the invention.
Fig. 3 is a schematic structural view of the circular heat-absorbing insulating pad of the present invention.
FIG. 4 is a schematic view showing the structure of a circular relaxor ferroelectric single crystal wafer according to the present invention.
Fig. 5 is a half sectional view of fig. 4.
FIG. 6 is a schematic structural diagram of a circular electrode plate, a strip electrode plate and a V-shaped electrode plate in the present invention.
FIG. 7 is a schematic structural diagram of a circular truncated cone-shaped variable amplitude rod, a circular annular pitch disk and a multidirectional tuning piezoelectric array element in the invention.
In the figure: 101-circular upper end cover, 102-circular lower end cover, 103-prestressed bolt, 104-disc spring, 105-prestressed nut, 106-first circular sound-proof ring, 107-second circular sound-proof ring, 108-cylindrical dust cover, 109-round platform deformation amplitude transformer, 110-circular ring section disc, 111-circular heat-absorbing insulation pad, 112-circular relaxation ferroelectric single crystal wafer, 113-circular electrode wafer, 114-strip electrode wafer, 115-V-shaped electrode wafer, 116-circular mounting hole, 117-circular ring-shaped kerf, 118-strip kerf, 119-threading hole, 120-circular ring-shaped strain gauge type wireless pressure sensor, 201-cylindrical connecting rod, 202-first cylindrical titanium alloy block, 203-first circular piezomagnetic material sheet, 204-a second cylindrical titanium alloy block, 205-a second circular piece of piezomagnetic material, 206-a third cylindrical titanium alloy block, and 207-a composite horn.
Detailed Description
An industrial high-power multidirectional amplitude regulation ultrasonic vibration device comprises a longitudinal vibration ultrasonic vibrator and a multidirectional tuning piezoelectric array element;
the longitudinal vibration ultrasonic vibrator comprises a piezoelectric main body, a circular upper end cover 101, a circular lower end cover 102, a prestressed bolt 103, a disc spring 104, a prestressed nut 105, a first circular sound insulation ring 106, a second circular sound insulation ring 107, a cylindrical dust cover 108, a circular truncated cone deformation amplitude transformer 109 and a circular ring-shaped pitch disc 110;
the piezoelectric main body is formed by laminating four piezoelectric units from top to bottom; each piezoelectric unit comprises a circular endothermic insulating pad 111, five circular relaxor ferroelectric single crystal wafers 112, five circular electrode plates 113, a strip-shaped electrode plate 114 and two V-shaped electrode plates 115;
five circular mounting holes 116 are respectively formed in the end face of the circular heat absorption insulating pad 111 in a penetrating manner; the first circular mounting hole 116 is located at the center of the end face of the circular heat-absorbing insulating pad 111; the second to fifth circular mounting holes 116 are all located at the edge of the end face of the circular heat absorption insulation pad 111, and the second to fifth circular mounting holes 116 are arranged equidistantly around the axis of the circular heat absorption insulation pad 111; five circular relaxor ferroelectric single crystal wafers 112 are embedded in the five circular mounting holes 116 in a one-to-one correspondence manner; the lower end face of each circular relaxor ferroelectric single crystal wafer 112 is respectively provided with a plurality of annular cutting slits 117 and a plurality of strip-shaped cutting slits 118; the axes of the circular ring-shaped cutting seams 117 are overlapped; each strip-shaped cutting slit 118 is positioned at the inner side of the first circular ring-shaped cutting slit 117, and two ends of each strip-shaped cutting slit 118 are communicated with the first circular ring-shaped cutting slit 117; each strip-shaped cutting seam 118 is arranged in parallel at equal intervals; polymer decoupling materials are filled in each circular kerf 117 and each strip kerf 118; five circular electrode pieces 113 are stacked on the upper end surfaces of the five circular relaxor ferroelectric single crystal pieces 112 in a one-to-one correspondence; the strip-shaped electrode sheet 114 and the two V-shaped electrode sheets 115 are laminated on the upper end face of the circular heat-absorbing insulating pad 111; the front end face of the strip-shaped electrode plate 114 is fixed with the side face of the first circular electrode plate 113; the two V-shaped electrode plates 115 are bilaterally symmetrical, and the openings of the two V-shaped electrode plates 115 are opposite to each other; two tail end faces of the first V-shaped electrode plate 115 are respectively fixed with the side face of the second circular electrode plate 113 and the side face of the third circular electrode plate 113; two tail end surfaces of the second V-shaped electrode plate 115 are respectively fixed with the side surface of the fourth circular electrode plate 113 and the side surface of the fifth circular electrode plate 113;
the lower end face of the circular upper end cover 101 is in contact with the upper end face of the piezoelectric main body; a first circular boss extends from the upper end of the side surface of the circular upper end cover 101; a plurality of first counter bores are formed in the end face of the first circular boss in a penetrating manner, and the first counter bores are arranged around the axis of the circular upper end cover 101; the head of each first counter sink is upward; the lower end face of the first circular boss is provided with a first circular groove, and the first circular grooves are positioned at the outer sides of the first counter bores; the upper end face of the circular lower end cover 102 is in contact with the lower end face of the piezoelectric main body; a second circular boss extends from the upper end of the side surface of the circular lower end cover 102; the end surface of the second circular boss is provided with a plurality of second counter bores in a penetrating way; the number of the second counter sink holes is consistent with that of the first counter sink holes, and each second counter sink hole is opposite to each first counter sink hole one by one; the head of each second counter bore faces downwards; a second circular groove is formed in the upper end face of the second circular boss, and the second circular groove is opposite to the first circular groove; a first cylindrical boss extends from the center of the lower end face of the circular lower end cover 102, and an external thread is arranged on the side face of the first cylindrical boss; the number of the prestressed bolts 103 is the same as that of the second countersunk holes; each prestressed bolt 103 penetrates through each second counter bore and each first counter bore in a one-to-one correspondence manner, and the head of each prestressed bolt 103 is located at the head of each second counter bore in a one-to-one correspondence manner; the number of disc springs 104 is the same as the number of prestressed bolts 103; each disc spring 104 is sleeved on each prestressed bolt 103 in a one-to-one correspondence manner, and each disc spring 104 is positioned at the head of each first counter sink in a one-to-one correspondence manner; the number of the prestressed nuts 105 is the same as that of the prestressed bolts 103; the respective pre-stressing nuts 105 are screwed on the respective pre-stressing bolts 103 in one-to-one correspondence, and the respective pre-stressing nuts 105 press the respective disc springs 104 in one-to-one correspondence; the first circular sound insulation ring 106 is embedded in the first circular groove; the second circular sound insulation ring 107 is embedded in the second circular groove; the upper end of the inner side surface of the cylindrical dust cover 108 is fixedly matched with the outer side surface of the first circular boss; the lower end of the inner side surface of the cylindrical dust cover 108 is fixedly matched with the outer side surface of the second circular boss; four threading holes 119 are formed in the middle of the side face of the cylindrical dust cover 108 in a penetrating manner, and the threading holes 119 are arranged around the axis of the cylindrical dust cover 108; the thick end of the circular truncated cone-shaped amplitude-changing rod 109 faces upwards, and the thin end faces downwards; a first blind screw hole is formed in the center of the upper end face of the circular truncated cone amplitude-changing rod 109, and the circular truncated cone amplitude-changing rod 109 is screwed on the first cylindrical boss through the first blind screw hole; the lower end face of the circular truncated cone-shaped amplitude transformer 109 is provided with three circular blind holes which are arranged around the axis of the circular truncated cone-shaped amplitude transformer 109 at equal intervals; a second cylindrical boss extends from the center of the bottom of each of the three round blind holes; the side surfaces of the three second cylindrical bosses are provided with external threads; the inner side surface of the circular ring-shaped pitch disk 110 and the middle part of the side surface of the circular table amplitude-changing rod 109 are fixed into a whole;
the multi-direction tuning piezoelectric array element comprises a cylindrical connecting rod 201, a first cylindrical titanium alloy block 202, a first circular piezomagnetic material sheet 203, a second cylindrical titanium alloy block 204, a second circular piezomagnetic material sheet 205, a third cylindrical titanium alloy block 206 and a composite amplitude transformer 207;
the number of the cylindrical connection rods 201 is three; the centers of the upper end surfaces of the three cylindrical connecting rods 201 are respectively provided with a second blind screw hole, and the three cylindrical connecting rods 201 are screwed on the three second cylindrical bosses through the three second blind screw holes respectively; the lower end surfaces of the three cylindrical connecting rods 201 are all annular stepped surfaces with low middles and high peripheries; the number of the first cylindrical titanium alloy pieces 202 is three; the upper end surfaces of the three first cylindrical titanium alloy blocks 202 are all annular step surfaces with high middle parts and low periphery parts; the upper end surfaces of the three first cylindrical titanium alloy blocks 202 are respectively and fixedly matched with the lower end surfaces of the three cylindrical connecting rods 201; the number of the first circular pieces of piezomagnetic material 203 is three; the centers of the upper end surfaces of the three first circular piezomagnetic material sheets 203 are respectively fixed with the lower end surfaces of the three first cylindrical titanium alloy blocks 202; the number of the second cylindrical titanium alloy pieces 204 is three; the upper end surfaces of the three second cylindrical titanium alloy blocks 204 are respectively fixed with the centers of the lower end surfaces of the three first circular piezomagnetic material sheets 203; the number of the second circular pieces of piezomagnetic material 205 is three; the centers of the upper end surfaces of the three second circular piezomagnetic material sheets 205 are respectively fixed with the lower end surfaces of the three second cylindrical titanium alloy blocks 204; the number of the third cylindrical titanium alloy pieces 206 is three; the upper end surfaces of the three third cylindrical titanium alloy blocks 206 are respectively fixed with the centers of the lower end surfaces of the three second circular piezomagnetic material sheets 205; the lower end surfaces of the three third cylindrical titanium alloy blocks 206 are all annular stepped surfaces with high middle parts and low periphery parts; the number of the composite horns 207 is three; the upper end surfaces of the three composite amplitude transformer 207 are all annular stepped surfaces with low middle parts and high peripheries; the upper end surfaces of the three composite amplitude transformer rods 207 are respectively and fixedly matched with the lower end surfaces of the three third cylindrical titanium alloy blocks 206.
The longitudinal vibration ultrasonic vibrator also comprises a plurality of annular strain gauge type wireless pressure sensors 120; the number of the circular strain gauge type wireless pressure sensors 120 is consistent with that of the disc springs 104; the annular strain gauge type wireless pressure sensors 120 are sleeved on the prestressed bolts 103 in a one-to-one correspondence manner, and the annular strain gauge type wireless pressure sensors 120 are located at the heads of the first counter bores in a one-to-one correspondence manner; the circular ring strain gauge type wireless pressure sensors 120 are located below the disc springs 104 in a one-to-one correspondence.
The density of the circular upper end cap 101 is greater than that of the circular lower end cap 102.
In specific implementation, the circular upper end cover 101 is made of 45 steel, 304 stainless steel or 40Cr steel; the circular lower end cover 102 is made of mechanical hard aluminum or aviation aluminum or titanium alloy; the prestressed bolt 103 is a high-strength prestressed bolt; the disc spring 104 adopts a combined disc spring; the first round sound insulation ring 106 and the second round sound insulation ring 107 are both made of polyurethane; the circular heat-absorbing insulating pad 111 is made of resin rubber; the circular electrode plate 113, the strip-shaped electrode plate 114 and the V-shaped electrode plate 115 are made of phosphor bronze or beryllium bronze; the polymer decoupling material is a polyaminophenol decoupling material; the external thread is American sealed pipe thread.
Claims (4)
1. The utility model provides an industrial high-power multidirectional amplitude regulation and control ultrasonic vibration device which characterized in that: the device comprises a longitudinal vibration ultrasonic vibrator and a multidirectional tuning piezoelectric array element;
the longitudinal vibration ultrasonic vibrator comprises a piezoelectric main body, a circular upper end cover (101), a circular lower end cover (102), a prestressed bolt (103), a disc spring (104), a prestressed nut (105), a first circular sound insulation ring (106), a second circular sound insulation ring (107), a cylindrical dust cover (108), a circular truncated cone deformation amplitude rod (109) and a circular ring-shaped pitch disc (110);
the piezoelectric main body is formed by laminating four piezoelectric units from top to bottom; each piezoelectric unit comprises a circular heat-absorbing insulating pad (111), five circular relaxor ferroelectric single crystal wafers (112), five circular electrode plates (113), a strip-shaped electrode plate (114) and two V-shaped electrode plates (115);
five circular mounting holes (116) are respectively formed in the end face of the circular heat absorption insulating pad (111) in a penetrating manner; the first circular mounting hole (116) is positioned in the center of the end face of the circular heat absorption insulating pad (111); the second to fifth circular mounting holes (116) are all positioned at the edge of the end face of the circular heat absorption insulating pad (111), and the second to fifth circular mounting holes (116) are arranged at equal intervals around the axis of the circular heat absorption insulating pad (111); five circular relaxor ferroelectric single crystal wafers (112) are embedded in the five circular mounting holes (116) in a one-to-one correspondence manner; the lower end face of each circular relaxor ferroelectric single crystal wafer (112) is respectively provided with a plurality of circular ring-shaped cutting slits (117) and a plurality of strip-shaped cutting slits (118); the axes of the circular ring-shaped cutting seams (117) are overlapped; each strip-shaped kerf (118) is positioned at the inner side of a first circular kerf (117) close to the circle center of the circular relaxor ferroelectric single crystal wafer (112), and two ends of each strip-shaped kerf (118) are communicated with the first circular kerf (117); all the strip-shaped cutting seams (118) are arranged in parallel at equal intervals; polymer decoupling materials are filled in each circular kerf (117) and each strip kerf (118); five circular electrode plates (113) are correspondingly stacked on the upper end surfaces of the five circular relaxor ferroelectric single crystal plates (112) one by one; the strip-shaped electrode plate (114) and the two V-shaped electrode plates (115) are laminated on the upper end face of the circular heat-absorbing insulating pad (111); the front end surface of the strip-shaped electrode plate (114) is fixed with the side surface of the first circular electrode plate (113); the two V-shaped electrode plates (115) are symmetrical left and right, and the openings of the two V-shaped electrode plates (115) are opposite to each other; two tail end surfaces of the first V-shaped electrode plate (115) are respectively fixed with the side surface of the second circular electrode plate (113) and the side surface of the third circular electrode plate (113); two tail end surfaces of the second V-shaped electrode plate (115) are respectively fixed with the side surface of the fourth circular electrode plate (113) and the side surface of the fifth circular electrode plate (113);
the lower end face of the circular upper end cover (101) is in contact with the upper end face of the piezoelectric main body; a first circular boss extends from the upper end of the side surface of the circular upper end cover (101); the end face of the first circular boss is provided with a plurality of first counter bores in a penetrating manner, and the first counter bores are arranged around the axis of the circular upper end cover (101); the head of each first counter sink is upward; the lower end face of the first circular boss is provided with a first circular groove, and the first circular grooves are positioned at the outer sides of the first counter bores; the upper end face of the circular lower end cover (102) is in contact with the lower end face of the piezoelectric main body; a second circular boss extends from the upper end of the side surface of the circular lower end cover (102); the end surface of the second circular boss is provided with a plurality of second counter bores in a penetrating way; the number of the second counter sink holes is consistent with that of the first counter sink holes, and each second counter sink hole is opposite to each first counter sink hole one by one; the head of each second counter bore faces downwards; a second circular groove is formed in the upper end face of the second circular boss, and the second circular groove is opposite to the first circular groove; a first cylindrical boss extends from the center of the lower end face of the circular lower end cover (102), and an external thread is arranged on the side face of the first cylindrical boss; the number of the prestressed bolts (103) is consistent with that of the second counter bores; the prestressed bolts (103) penetrate through the second counter bores and the first counter bores in a one-to-one correspondence manner, and the heads of the prestressed bolts (103) are located at the heads of the second counter bores in a one-to-one correspondence manner; the number of the disc springs (104) is consistent with that of the prestressed bolts (103); each disc spring (104) is sleeved on each prestressed bolt (103) in a one-to-one corresponding mode, and each disc spring (104) is located at the head of each first counter sink in a one-to-one corresponding mode; the number of the prestressed nuts (105) is consistent with that of the prestressed bolts (103); the prestressed nuts (105) are screwed on the prestressed bolts (103) in a one-to-one correspondence manner, and the prestressed nuts (105) press the disc springs (104) in a one-to-one correspondence manner; the first circular sound insulation ring (106) is embedded in the first circular groove; a second circular sound insulation ring (107) is embedded in the second circular groove; the upper end of the inner side surface of the cylindrical dust cover (108) is fixedly matched with the outer side surface of the first circular boss; the lower end of the inner side surface of the cylindrical dust cover (108) is fixedly matched with the outer side surface of the second circular boss; the middle of the side surface of the cylindrical dust cover (108) is provided with four threading holes (119) in a penetrating way, and the threading holes (119) are arranged around the axis of the cylindrical dust cover (108); the thick end of the circular truncated cone-shaped amplitude-changing rod (109) faces upwards, and the thin end faces downwards; a first blind screw hole is formed in the center of the upper end face of the circular truncated cone amplitude-changing rod (109), and the circular truncated cone amplitude-changing rod (109) is screwed on the first cylindrical boss through the first blind screw hole; the lower end face of the circular truncated cone-shaped amplitude-changing rod (109) is provided with three circular blind holes which are arranged around the axis of the circular truncated cone-shaped amplitude-changing rod (109) at equal intervals; a second cylindrical boss extends from the center of the bottom of each of the three round blind holes; the side surfaces of the three second cylindrical bosses are provided with external threads; the inner side surface of the circular ring-shaped section disc (110) and the middle part of the side surface of the circular table amplitude-changing rod (109) are fixed into a whole;
the multi-direction tuning piezoelectric array element comprises a cylindrical connecting rod (201), a first cylindrical titanium alloy block (202), a first circular piezomagnetic material sheet (203), a second cylindrical titanium alloy block (204), a second circular piezomagnetic material sheet (205), a third cylindrical titanium alloy block (206) and a composite amplitude transformer (207);
the number of the cylindrical connecting rods (201) is three; the centers of the upper end surfaces of the three cylindrical connecting rods (201) are respectively provided with a second blind screw hole, and the three cylindrical connecting rods (201) are screwed on the three second cylindrical bosses through the three second blind screw holes; the lower end surfaces of the three cylindrical connecting rods (201) are all annular step surfaces with low middles and high peripheries; the number of the first cylindrical titanium alloy blocks (202) is three; the upper end surfaces of the three first cylindrical titanium alloy blocks (202) are all annular step surfaces with high middle parts and low periphery parts; the upper end surfaces of the three first cylindrical titanium alloy blocks (202) are respectively and fixedly matched with the lower end surfaces of the three cylindrical connecting rods (201); the number of the first circular pieces (203) of piezomagnetic material is three; the centers of the upper end surfaces of the three first circular piezomagnetic material sheets (203) are respectively fixed with the lower end surfaces of the three first cylindrical titanium alloy blocks (202); the number of the second cylindrical titanium alloy blocks (204) is three; the upper end surfaces of the three second cylindrical titanium alloy blocks (204) are respectively fixed with the centers of the lower end surfaces of the three first circular piezomagnetic material sheets (203); the number of the second circular pieces (205) of piezomagnetic material is three; the centers of the upper end surfaces of the three second circular piezomagnetic material sheets (205) are respectively fixed with the lower end surfaces of the three second cylindrical titanium alloy blocks (204); the number of the third cylindrical titanium alloy blocks (206) is three; the upper end surfaces of the three third cylindrical titanium alloy blocks (206) are respectively fixed with the centers of the lower end surfaces of the three second circular piezomagnetic material sheets (205); the lower end surfaces of the three third cylindrical titanium alloy blocks (206) are all annular step surfaces with high middle parts and low periphery parts; the number of the composite amplitude transformer rods (207) is three; the upper end surfaces of the three composite amplitude transformer rods (207) are all annular step surfaces with low middle parts and high peripheries; the upper end surfaces of the three composite amplitude transformer rods (207) are respectively and fixedly matched with the lower end surfaces of the three third cylindrical titanium alloy blocks (206).
2. The industrial high-power multidirectional amplitude control ultrasonic vibration device according to claim 1, characterized in that: the longitudinal vibration ultrasonic vibrator also comprises a plurality of annular strain gauge type wireless pressure sensors (120); the number of the circular strain gauge type wireless pressure sensors (120) is consistent with that of the disc springs (104); the annular strain gauge type wireless pressure sensors (120) are sleeved on the prestressed bolts (103) in a one-to-one corresponding mode, and the annular strain gauge type wireless pressure sensors (120) are located at the heads of the first counter bores in a one-to-one corresponding mode; the annular strain gauge type wireless pressure sensors (120) are located below the disc springs (104) in a one-to-one correspondence mode.
3. The industrial high-power multidirectional amplitude control ultrasonic vibration device according to claim 1 or 2, characterized in that: the density of the circular upper end cover (101) is greater than that of the circular lower end cover (102).
4. The industrial high-power multidirectional amplitude control ultrasonic vibration device according to claim 1 or 2, characterized in that: the circular upper end cover (101) is made of 45 steel, 304 stainless steel or 40Cr steel; the circular lower end cover (102) is made of mechanical hard aluminum or aviation aluminum or titanium alloy; the prestressed bolt (103) adopts a high-strength prestressed bolt; the disc spring (104) adopts a combined disc spring; the first round sound insulation ring (106) and the second round sound insulation ring (107) are both made of polyurethane; the circular heat-absorbing insulating pad (111) is made of resin rubber; the circular electrode plate (113), the strip-shaped electrode plate (114) and the V-shaped electrode plate (115) are made of phosphor bronze or beryllium bronze; the polymer decoupling material is a polyaminophenol decoupling material; the external thread is American sealed pipe thread.
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| CN201361611Y (en) * | 2009-02-20 | 2009-12-16 | 浙江嘉康电子股份有限公司 | Low-frequency piezoelectric ceramic frequency device |
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| US3733661A (en) * | 1971-01-25 | 1973-05-22 | List H | Method for the manufacture of a piezoelectric transducer and transducer manufactured by this method |
| CN87213972U (en) * | 1987-09-30 | 1988-05-04 | 宁波市华侨新技术实业有限公司 | Ultrasonic cell crasher |
| CN203406767U (en) * | 2013-06-06 | 2014-01-22 | 林英楠 | Permanent magnetism speed regulation, brake or load apparatus with adjustable coupling magnetic flux |
| CN103532434B (en) * | 2013-11-01 | 2015-07-08 | 重庆大学 | Broadband multi-dimensional energy collector based on collision mechanism |
| CN203690347U (en) * | 2014-01-29 | 2014-07-02 | 西安科技大学 | Piezoelectric material multidirectional polarization clamp |
| CN203798360U (en) * | 2014-03-14 | 2014-08-27 | 上海交通大学 | Magnetoelectric coriolis force detection sensor |
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