CN105587616A - Bending vibration surface mount type active water spraying propulsion device and driving method thereof - Google Patents
Bending vibration surface mount type active water spraying propulsion device and driving method thereof Download PDFInfo
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Abstract
The invention discloses a bending vibration surface mount type active water spraying propulsion device and a driving method thereof. The problems that a current piezoelectric water spraying propulsion device is small in driving force, low in power density and the like are solved. The bending vibration surface mount type active water spraying propulsion device comprises single crystal wafers for valves, metal base plates for valves, end covers, supporting rubber rings, sealing rings, cavities, fastening bolts, a pump cavity driving assembly, an amplification membrane, a clamping block, a metal base plate for pumps, a front end cover and fastening screws; and each cavity is provided with a valve cavity water inlet, a pump cavity water inlet and a pump cavity water outlet, each valve cavity water inlet is provided with a driving valve base for valves, each pump cavity water inlet is provided with a driving valve base for pumps, and a hydrophobic structure is arranged on the inner wall of each pump cavity water outlet. Electric signals are applied to the single crystal wafers for the valves and the pump cavity driving assembly, the single crystal wafers for the valves and the pump cavity driving assembly are stimulated to generate bending and stretching deformation, the volumes of the valve cavities and the pump cavities are alternatively changed, and flowing in and spraying out of fluid are achieved; and under the counter-acting force of sprayed water, propulsion of the device is achieved. The bending vibration surface mount device type active water spraying propulsion device and the driving method have the beneficial effects of being large in driving force, high in power density and the like, and have wide application prospects in the field of trace injection, military surveying and the like.
Description
Technical field
The present invention relates to the SMD active hydraulic jet propulsion system of a kind of bending vibration and driving method thereof, belong to hydraulic jet propulsion technical field.
Background technology
Hydraulic jet propulsion system is to utilize the reaction force of boost pump ejection current to produce propulsive force, and then realizes the microdriver of movement output. Pump occupy consequence as the power source of propulsion plant in hydraulic jet propulsion technology, the boost pump adopting in hydraulic jet propulsion system is at present mainly axial-flow pump, mixed-flow pump and centrifugal pump, there is the shortcomings such as power density is low, poor anti jamming capability, complex structure in this kind of kinetic pump, makes hydraulic jet propulsion technology be difficult to meet the application demand in the fields such as current robot, small-sized detection, precision instrument. The piezoelectric pump that 20 century 70s grow up is typical microminiature drive unit, has the features such as the microminiaturization of being easy to, dynamic response are fast, anti-electromagnetic interference. In recent years, realize the research of movement output using piezoelectric pump as hydraulic jet propulsion system power source, be subject to paying close attention to widely. Compared with traditional hydraulic jet propulsion system, because it has the technical advantages such as power density is high, simple and compact for structure, driving force is large, there is broad prospect of application in technical fields such as trace injection, military detection, underwater robots.
Chinese utility model patent " Miniature water-propulsion pump ", Granted publication number is CN200989293Y, Granted publication day is on December 12nd, 2007, disclosed a kind of Miniature water-propulsion pump, mainly by the pump housing, pump chamber, piezoelectric vibrator composition, taking piezoelectric vibrator as driving element, piezoelectric vibrator is supported on by the flexible member of its periphery in the cavity forming between the pump housing and capping, the pump housing is provided with entrance channel and outlet flow, valve pocket axis corresponding to entrance channel with outlet flow axis in same plane and mutually vertical, porch adopts rubber stop valve as inlet valve, outlet is spout, nozzle is not established valve, with extraneous normal open, by pump chamber, the pump inner chamber body of valve pocket and spout composition is closed cavity not, Chinese utility model patent " piezoelectricity hydraulic jet propulsion system ", Granted publication number is CN202574604U, Granted publication day is on 05 07th, 2012, disclosed a kind of piezoelectricity hydraulic jet propulsion system, its upper cover is fixedly connected with the pump housing, piezoelectric vibrator periphery is used elastic rubber ring, lower elastic rubber ring supports, and form pump chamber with upper cover, between this upper cover and the pump housing, there is sealing ring, the pump housing is provided with water inlet one and water inlet two, between piezoelectric vibrator and two water inlets, be provided with valve pocket, be fixedly connected with respectively umbrella shape rubber valve one and umbrella shape rubber valve two at water inlet one with water inlet two places, between two water inlets, have water outlet spout, water outlet spout is directly connected with the external world.
The piezoelectricity hydraulic jet propulsion system of above-mentioned several implementations, though it can be under certain excitation electric signal function, by the suction of fluid and the ahead running output of ejection process implementation device, but the piezoelectricity hydraulic jet propulsion system of this implementation exists the technical problems such as driving force is little, power density is low, application and the development of the technical fields such as it sprays at trace, military detection, underwater robot are limited.
Summary of the invention
There is the technical problems such as driving force is little, power density is low in order to solve current piezoelectricity hydraulic jet propulsion system, the invention discloses the SMD active hydraulic jet propulsion system of a kind of bending vibration and driving method thereof.
The technical solution adopted in the present invention is: the SMD active hydraulic jet propulsion system of described bending vibration by single-chip for valve, valve-use metal substrate, end cap, support rubber circle, sealing ring, cavity, fastening bolt, driven unit for pump, amplify diaphragm, clamp, for pump, metal substrate, drive end bearing bracket and trip bolt form.
Described valve single-chip isd 33Exciting pattern circular piezoelectric potsherd, through-thickness polarization, described valve is connected with valve-use metal substrate is gluing with single-chip one side end face, and described valve is drawn by the wire guide on end cap with the electrified wire of single-chip. described valve-use metal substrate is metallic elastic body structure, is arranged on the interior step ladder circular ring face of valve pocket, and is gripped and be installed between end cap and cavity by support rubber circle. the horizontal side of described end cap is provided with inner-cavity structure, on described end cap internal chamber wall, be provided with wire guide structure, the horizontal side of described end cap is also provided with annular groove structure, the horizontal side of described end cap is also provided with sealing ring channel structures, the horizontal side of described end cap is also provided with four through-hole structures, vertical side one side of described end cap is provided with two internal thread hole structures, vertical side one side of described end cap is also provided with sealing ring channel structures, described end cap vertical side one side is also provided with semi-circular through hole structure, the medial surface of described semi-circular through hole and cavity one side adhesive sealing, the end face adhesive sealing of the end face of described semi-circular through hole and another end cap semi-circular through hole. described support rubber circle and sealing ring are circular ring structure elastomer. described cavity is provided with valve pocket structure, described cavity is also provided with interior step ladder circular ring face structure, described cavity is also provided with annular groove structure, described cavity is also provided with sealing ring channel structures, described cavity is also provided with valve pocket water inlet structure, described valve pocket water inlet is provided with valve aggressive valve holder structure, described cavity is also provided with pump chamber water inlet structure, described cavity is also provided with pump chamber outlet structure, described pump chamber delivery port is provided with pump aggressive valve holder structure, and described pump chamber delivery port inwall is provided with hydrophobic structure. described pump comprises metal elastic gonosome and 2 piezoelectric ceramic pieces with driven unit, and described metal elastic gonosome is square-section girder construction, and one side end is connected with metal substrate is gluing with pump, described 2 piezoelectric ceramic pieces all adoptd 31Exciting pattern, and its equal through-thickness polarization, described 2 piezoelectric ceramic pieces are all connected with metal elastic gonosome is gluing, and its electrified wire is drawn by the wire guide on drive end bearing bracket. Described amplification diaphragm is round and elastic body structure, is arranged in the circular trough of clamp one side end face. Described clamp one center, side end face is provided with through-hole structure, described clamp one side end face is also provided with circular trough structure, described clamp one side end face is also provided with sealing ring channel structures, described clamp opposite side end face is provided with annular groove structure, described clamp opposite side end face is also provided with sealing ring channel structures, and described clamp opposite side end face surrounding is also provided with four through-hole structures. Described pump metal substrate is metallic elastic body structure, be arranged on the interior step ladder circular ring face of drive end bearing bracket, and gripped and be installed between drive end bearing bracket and clamp by support rubber circle, described pump is used a side end face and gluing connection of pump driven unit of metal substrate. Described drive end bearing bracket is provided with inner-cavity structure, on described drive end bearing bracket internal chamber wall, be provided with wire guide structure, described drive end bearing bracket one side end face is provided with interior step ladder circular ring face structure, described drive end bearing bracket one side end face is also provided with annular groove structure, described drive end bearing bracket one side end face is also provided with sealing ring channel structures, and described drive end bearing bracket opposite side end face is provided with four countersunk head through-hole structures.
The invention has the beneficial effects as follows: apply the ac-excited signal of telecommunication in valve single-chip and pump driven unit, excite respectively and make it produce longitudinal extension and both direction flexural deformation, cause valve pocket and pump chamber alternately to change, complete suction and the ejection of fluid, under the reaction force of water spray, the ahead running output of implement device. The present invention has that driving force is large, power density high-technology advantage, sprays, the technical field such as military detection, underwater robot has broad application prospects at trace.
Brief description of the drawings
Figure 1 shows that the cutaway view of the SMD active hydraulic jet propulsion system of a kind of bending vibration that the present invention proposes;
Figure 2 shows that the side view of the SMD active hydraulic jet propulsion system of a kind of bending vibration that the present invention proposes;
Figure 3 shows that the top view of the SMD active hydraulic jet propulsion system end cap of a kind of bending vibration that the present invention proposes;
Figure 4 shows that the A-A of the SMD active hydraulic jet propulsion system end cap of a kind of bending vibration that the present invention proposes is to cutaway view;
Figure 5 shows that the side view of the SMD active hydraulic jet propulsion system end cap of a kind of bending vibration that the present invention proposes;
Figure 6 shows that the cutaway view of the SMD active hydraulic jet propulsion system cavity of a kind of bending vibration that the present invention proposes;
Figure 7 shows that the partial enlarged drawing of delivery port hydrophobic structure in the SMD active hydraulic jet propulsion system cavity of a kind of bending vibration that the present invention proposes;
Figure 8 shows that the top view of the SMD active hydraulic jet propulsion system cavity of a kind of bending vibration that the present invention proposes;
Figure 9 shows that the side view of the SMD active hydraulic jet propulsion system cavity of a kind of bending vibration that the present invention proposes;
Figure 10 shows that the front view of the SMD active hydraulic jet propulsion system pump of a kind of bending vibration driven unit that the present invention proposes;
Figure 11 shows that the side view of the SMD active hydraulic jet propulsion system pump of a kind of bending vibration driven unit that the present invention proposes;
Figure 12 shows that the front view of the SMD active hydraulic jet propulsion system clamp of a kind of bending vibration that the present invention proposes;
Figure 13 shows that the B-B of the SMD active hydraulic jet propulsion system clamp of a kind of bending vibration that the present invention proposes is to cutaway view;
Figure 14 shows that the cutaway view of the SMD active hydraulic jet propulsion system drive end bearing bracket of a kind of bending vibration that the present invention proposes;
Figure 15 shows that the front view of the SMD active hydraulic jet propulsion system drive end bearing bracket of a kind of bending vibration that the present invention proposes.
Detailed description of the invention
Detailed description of the invention one: present embodiment is described in conjunction with Fig. 1 ~ Figure 15. Present embodiment provides the specific embodiments of the SMD active hydraulic jet propulsion system of a kind of bending vibration. The SMD active hydraulic jet propulsion system of described bending vibration mainly by single-chip 1 for valve, valve-use metal substrate 2, end cap 3, support rubber circle 4, sealing ring 5, cavity 6, fastening bolt 7, driven unit 8 for pump, amplify diaphragm 9, clamp 10, for pump, metal substrate 11, drive end bearing bracket 12 and trip bolt 13 form.
Described valve with single-chip 1 isd 33Exciting pattern circular piezoelectric potsherd, through-thickness polarization, described valve is connected by epoxide-resin glue with valve-use metal substrate 2 with single-chip 1 one side end faces, and described valve is drawn by the wire guide 3-2 on end cap 3 with the electrified wire 1-1 of single-chip 1, realizes the input of external drive power supply.
Described valve-use metal substrate 2 is metallic elastic body structure, be arranged on the interior step ladder circular ring face 6-2 of valve pocket 6, and gripped and be installed between end cap 3 and cavity 6 by support rubber circle 4, a side end face of described valve-use metal substrate 2 is fixedly connected with single-chip 1 with valve by epoxide-resin glue.
Described end cap 3 horizontal side are provided with inner chamber 3-1 structure, and it is for realizing the fixed installation of valve single-chip 1 and internal chamber wall 3-1-1 by epoxide-resin glue; On described end cap 3 internal chamber wall 3-1-1, be provided with wire guide 3-2 structure, it is for realizing drawing of valve single-chip 1 electrified wire 1-1; Described end cap 3 horizontal side are also provided with annular groove 3-3 structure, and it realizes the fastening installation of clamping of valve-use metal substrate 2 for the layout of support rubber circle 4; Described end cap 3 horizontal side are also provided with sealing cannelure 3-4 structure, and it realizes the sealing of valve pocket 6-1 for the mounting arrangements of sealing ring 5; Described end cap 3 horizontal side are also provided with four through hole 3-5 structures, and it is fastenedly connected by fastening bolt 7 realizations and cavity 6; Described end cap 3 vertical side one sides are provided with two internal thread hole 3-6 structures, and it is realized with drive end bearing bracket 12, clamp 10 and amplified being fastenedly connected of diaphragm 9 by trip bolt 13; Described end cap 3 vertical side one sides are also provided with sealing cannelure 3-7 structure, and it realizes the sealing of pump chamber for the mounting arrangements of sealing ring 5; Described end cap 3 vertical side one sides are also provided with semi-circular through hole 3-10 structure; Described semi-circular through hole 3-10 medial surface 3-8 and cavity 6 one side adhesive sealings; Described semi-circular through hole 3-10 end face 3-9 and another end cap 3 semi-circular through hole 3-10 end face 3-9 adhesive sealings.
Described support rubber circle 4 is circular ring structure elastomer, be arranged in respectively in annular groove 6-3, the annular groove 10-4 of clamp 10 and the annular groove 12-3 of drive end bearing bracket 12 of annular groove 3-3, cavity 6 of end cap 3, realize respectively the fastening installation of clamping of valve-use metal substrate 2 and pump metal substrate 11.
Described sealing ring 5 is circular ring structure elastomer, be arranged in respectively in sealing cannelure 6-4, the sealing cannelure 10-3 of clamp 10 and the sealing cannelure 12-4 of 10-5 and drive end bearing bracket 12 of the sealing cannelure 3-2 of end cap 3 and 3-7, cavity 6, for realizing the sealing of valve pocket 6-1, pump chamber and device.
Described cavity 6 is provided with valve pocket 6-1 structure, and itself and valve-use metal substrate 2 and valve form sealing cavity volume with single-chip 1, for realizing the suction of fluid; Described cavity 6 is also provided with interior step ladder circular ring face 6-2 structure, and it is for realizing the mounting arrangements of valve-use metal substrate 2; Described cavity 6 is also provided with annular groove 6-3 structure, and it realizes the fastening installation of clamping of valve-use metal substrate 2 for the layout of support rubber circle 4; Described cavity 6 is also provided with sealing cannelure 6-4 structure, and it realizes the sealing of valve pocket 6-1 for the mounting arrangements of sealing ring 5; Described cavity 6 is also provided with valve pocket water inlet 6-5 structure, and it is for realizing the circulation of valve pocket 6-1 fluid; Described valve pocket water inlet 6-5 is provided with valve active valve seat 6-6 structure, and it is for forming valve aggressive valve with valve with monocrystal 1 and valve-use metal substrate 2; Described cavity 6 is also provided with pump chamber water inlet 6-7 structure, and it is for realizing the circulation of pump chamber fluid; Described cavity 6 is also provided with pump chamber delivery port 6-9 structure, and it is for realizing the ejection of high pressure fluid; Described pump chamber delivery port 6-9 inwall is provided with hydrophobic structure 6-9-1, and it is for reducing the flow resistance of fluid; Described pump chamber delivery port 6-9 is also provided with pump active valve seat 6-8 structure, and it is for forming pump aggressive valve with driven unit 8, amplification diaphragm 9 and pump for pump with metal substrate 11.
Described pump comprises metal elastic gonosome 8-1 and 2 piezoelectric ceramic piece 8-2 with driven unit 8, and described metal elastic gonosome 8-1 is square-section girder construction, and one side end is pasted on pump with on metal substrate 8 by epoxide-resin glue; Described 2 piezoelectric ceramic piece 8-2 all adoptd 31Exciting pattern, and its equal through-thickness polarization, described 2 piezoelectric ceramic piece 8-2 are along the circumferential direction evenly pasted on the outer surface of metal elastic gonosome 8-1 by epoxide-resin glue, the deformation direction of described 2 piezoelectric ceramic piece 8-2 is all parallel to each other with the central axial direction of metal elastic gonosome 8-1, the electrified wire of described 2 piezoelectric ceramic piece 8-2 is drawn by the wire guide 12-5 on drive end bearing bracket 12, realizes the access of external drive power supply.
Described amplification diaphragm 9 is round and elastic body structure, and it is arranged in the circular trough 10-2 of clamp 10 1 side end faces, by being fastenedly connected of trip bolt 13 realizations and drive end bearing bracket 12, clamp 10 and end cap 3; Described amplification diaphragm 9 is for realizing the amplification of pump metal substrate 11 mechanically deforms.
Described clamp 10 1 centers, side end face are provided with through hole 10-1 structure; Described clamp 10 1 side end faces are also provided with circular trough 10-2 structure, and its layout of amplifying diaphragm 9 for realizing is installed; Described clamp 10 1 side end faces are also provided with sealing cannelure 10-3 structure, and it realizes the sealing of pump chamber for the mounting arrangements of sealing ring 5; Described clamp 10 opposite side end faces are provided with annular groove 10-4 structure, and it realizes the fastening installation of clamping of pump metal substrate 11 for the layout of support rubber circle 4; Described clamp 10 opposite side end faces are also provided with sealing cannelure 10-5 structure, and it is for the mounting arrangements of sealing ring 5, the sealing of implement device; Described clamp 10 opposite side end face surroundings are also provided with four through hole 10-6 structures, and it is for realizing with drive end bearing bracket 12, amplifying being fastenedly connected of diaphragm 9 and end cap 3 by trip bolt 13.
Described pump is metallic elastic body structure with metal substrate 11, be arranged on the interior step ladder circular ring face 12-2 of drive end bearing bracket 12, and grip the contact surface that is installed on drive end bearing bracket 12 and clamp 10 by support rubber circle 4, described pump is fixedly connected with pump driven unit 8 by epoxide-resin glue with a side end face of metal substrate 11.
Described drive end bearing bracket 12 is provided with inner chamber 12-1 structure; The internal chamber wall 12-1-1 of described drive end bearing bracket 12 realizes and being fixedly connected with of pump driven unit 8 by epoxide-resin glue; On the internal chamber wall 12-1-1 of described drive end bearing bracket 12, be provided with wire guide 12-5 structure, it is for realizing drawing of pump driven unit 8 electrified wire 8-1; Described drive end bearing bracket 12 1 side end faces are provided with interior step ladder circular ring face 12-2 structure, and it is for realizing the mounting arrangements of pump metal substrate 11; Described drive end bearing bracket 12 1 side end faces are also provided with annular groove 12-3 structure, and it realizes the fastening installation of clamping of pump metal substrate 11 for the layout of support rubber circle 4; Described drive end bearing bracket 12 1 side end faces are also provided with sealing cannelure 12-4 structure, and it is for the mounting arrangements of sealing ring 5, the sealing of implement device; Described drive end bearing bracket 12 opposite side end faces are provided with four countersunk head through hole 12-6 structures, and it is realized with clamp 10, amplifies being fastenedly connected of diaphragm 9 and end cap 3 for the mounting arrangements of trip bolt 13.
Detailed description of the invention two: present embodiment provides the specific embodiments of the SMD active hydraulic jet propulsion system driving method of a kind of bending vibration.
The specific embodiments of the SMD active hydraulic jet propulsion system driving method of described a kind of bending vibration is: described valve single-chip 1 applies and makes it produce the ac-excited signal of telecommunication that shortens distortion, the volume of valve pocket 6-1 is increased, and fluid flows into valve pocket 6-1 by valve pocket water inlet 6-5; Described valve applies and makes it produce the ac-excited signal of telecommunication of elongation strain with single-chip 1, described pump applies and makes it produce the diastrophic ac-excited signal of telecommunication of direction with driven unit 8, make the smaller volume of valve pocket 6-1, it is large that the volume of pump chamber becomes, fluid flows into pump chamber by pump chamber water inlet 6-7, completes a water absorption course of the present invention; Described pump applies and makes it produce the diastrophic ac-excited signal of telecommunication of another direction with driven unit 8, makes the smaller volume of pump chamber, and fluid sprays by delivery port 6-9, completes the process of once spraying water of the present invention. The present invention is under the reaction force of water spray, and the ahead running of implement device is exported.
The sine wave that the ac-excited signal of telecommunication that described valve passes to single-chip 1 is a certain frequency or the square-wave cycle signal of telecommunication, the sine wave period signal of telecommunication that the ac-excited signal of telecommunication that described pump passes to driven unit 8 is a certain frequency, the phase difference of the ac-excited signal of telecommunication that described pump passes to 2 piezoelectric ceramic piece 8-2 in driven unit 8 is 180 degree, and described valve is 180 degree with the phase difference that single-chip 1 and pump driven unit 8 pass to the ac-excited signal of telecommunication.
Claims (9)
1. the SMD active hydraulic jet propulsion system of bending vibration, by single-chip for valve (1), valve-use metal substrate (2), end cap (3), support rubber circle (4), sealing ring (5), cavity (6), fastening bolt (7), driven unit (8) for pump, amplify diaphragm (9), clamp (10), for pump, metal substrate (11), drive end bearing bracket (12) and trip bolt (13) form.
2. the SMD active hydraulic jet propulsion system of bending vibration according to claim 1, it is characterized in that: described end cap (3) horizontal side is provided with inner chamber (3-1) structure, on described end cap (3) internal chamber wall (3-1-1), be provided with wire guide (3-2) structure, described end cap (3) horizontal side is also provided with annular groove (3-3) structure, described end cap (3) horizontal side is also provided with sealing cannelure (3-4) structure, described end cap (3) horizontal side is also provided with four through holes (3-5) structure, described end cap (3) vertical side one side is provided with two internal thread holes (3-6) structure, described end cap (3) vertical side one side is also provided with sealing cannelure (3-7) structure, described end cap (3) vertical side one side is also provided with semi-circular through hole (3-10) structure, described semi-circular through hole (3-10) medial surface (3-8) and cavity (6) one side adhesive sealings, described semi-circular through hole (3-10) end face (3-9) and another end cap (3) semi-circular through hole (3-10) end face (3-9) adhesive sealing.
3. the SMD active hydraulic jet propulsion system of bending vibration according to claim 1, it is characterized in that: described cavity (6) is provided with valve pocket (6-1) structure, described cavity (6) is also provided with interior step ladder circular ring face (6-2) structure, described cavity (6) is also provided with annular groove (6-3) structure, described cavity (6) is also provided with sealing cannelure (6-4) structure, described cavity (6) is also provided with valve pocket water inlet (6-5) structure, described valve pocket water inlet (6-5) is provided with valve active valve seat (6-6) structure, described cavity (6) is also provided with pump chamber delivery port (6-9) structure, described pump chamber delivery port (6-9) inwall is provided with hydrophobic structure (6-9-1), described pump chamber delivery port (6-9) is also provided with pump active valve seat (6-8) structure.
4. the SMD active hydraulic jet propulsion system of bending vibration according to claim 1, it is characterized in that: described clamp (10) one centers, side end face are provided with through hole (10-1) structure, described clamp (10) one side end faces are also provided with circular trough (10-2) structure, described clamp (10) one side end faces are also provided with sealing cannelure (10-3) structure, described clamp (10) opposite side end face is provided with annular groove (10-4) structure, described clamp (10) opposite side end face is also provided with sealing cannelure (10-5) structure, described clamp (10) opposite side end face surrounding is also provided with four through holes (10-6) structure.
5. the SMD active hydraulic jet propulsion system of bending vibration according to claim 1, it is characterized in that: described drive end bearing bracket (12) is provided with inner chamber (12-1) structure, described drive end bearing bracket (12) internal chamber wall (12-1-1) and gluing connection of piezoelectric stack for pump (8), on described drive end bearing bracket (12) internal chamber wall (12-1-1), be provided with wire guide (12-5) structure, described drive end bearing bracket (12) one side end faces are provided with interior step ladder circular ring face (12-2) structure, described drive end bearing bracket (12) one side end faces are also provided with annular groove (12-3) structure, described drive end bearing bracket (12) one side end faces are also provided with sealing cannelure (12-4) structure, described drive end bearing bracket (12) opposite side end face is provided with four countersunk head through holes (12-6) structure.
6. the SMD active hydraulic jet propulsion system of bending vibration according to claim 1, is characterized in that: described for valve single-chip (1) bed 33Exciting pattern circular piezoelectric potsherd, through-thickness polarization, described single-chip (1) one side end face and gluing connection of valve-use metal substrate (2) for valve, described for valve the electrified wire (1-1) of single-chip (1) draw by the wire guide (3-2) on end cap (3).
7. the SMD active hydraulic jet propulsion system of bending vibration according to claim 1, it is characterized in that: described for pump driven unit (8) comprise metal elastic gonosome (8-1) and 2 piezoelectric ceramic pieces (8-2), described metal elastic gonosome (8-1) is square-section girder construction, one side end all adopts with gluing connection of metal substrate for pump (8), described 2 piezoelectric ceramic pieces (8-2)d 31Exciting pattern, and its equal through-thickness polarization, described 2 piezoelectric ceramic pieces (8-2) are along the circumferential direction evenly pasted on the outer surface of metal elastic gonosome (8-1), the deformation direction of described 2 piezoelectric ceramic pieces (8-2) is all parallel to each other with the central axial direction of metal elastic gonosome (8-1), and the electrified wire of described 2 piezoelectric ceramic pieces (8-2) is drawn by the wire guide (12-5) on drive end bearing bracket (12).
8. the SMD active hydraulic jet propulsion system of bending vibration according to claim 1, it is characterized in that: described valve-use metal substrate (2) is metallic elastic body structure, be arranged on the interior step ladder circular ring face (6-2) of valve pocket (6), and grip the contact surface that is installed on end cap (3) and cavity (6), a side end face of described valve-use metal substrate (2) and gluing connection of single-chip for valve (1) by support rubber circle (4); Described for pump metal substrate (11) be metallic elastic body structure, the interior step ladder circular ring face (12-2) that is arranged in drive end bearing bracket (12) is upper, a described side end face and gluing connection of driven unit for pump (8) of metal substrate (11) for pump.
9. the driving method of the SMD active hydraulic jet propulsion system of bending vibration as claimed in claim 1, it is characterized in that: the driving method of the SMD active hydraulic jet propulsion system of described bending vibration is specially: described for valve single-chip (1) apply make its produce shorten distortion the ac-excited signal of telecommunication, the volume of valve pocket (6-1) is increased, and fluid flows into valve pocket (6-1) by valve pocket water inlet (6-5); Described for valve single-chip (1) apply and make it produce the ac-excited signal of telecommunication of elongation strain, described for pump driven unit (8) apply make its produce the diastrophic ac-excited signal of telecommunication of direction, make the smaller volume of valve pocket (6-1), it is large that the volume of pump chamber becomes, fluid flows into pump chamber by pump chamber water inlet (6-7), completes water absorption course one time; Described for pump driven unit (8) apply and make it produce the diastrophic ac-excited signal of telecommunication of another direction, make the smaller volume of pump chamber, fluid, by delivery port (6-9) ejection, completes the process of once spraying water; Under the reaction force of water spray, realize ahead running output;
Sine wave or the square-wave cycle signal of telecommunication that the described ac-excited signal of telecommunication that for valve, single-chip (1) passes to is a certain frequency, the sine wave period signal of telecommunication that the described ac-excited signal of telecommunication that for pump, driven unit (8) passes to is a certain frequency, the phase difference of the described ac-excited signal of telecommunication that for pump, in driven unit (8), 2 piezoelectric ceramic pieces (8-2) pass to is 180 degree, described for valve single-chip (1) be 180 degree with the phase difference that driven unit (8) for pump passes to the ac-excited signal of telecommunication.
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| CN201162655Y (en) * | 2007-12-07 | 2008-12-10 | 吉林大学 | Single-cavity double-transducer piezoelectric pump |
| US20110003127A1 (en) * | 2008-03-12 | 2011-01-06 | Nitto Denko Corporation | Edge-fastening tape and use thereof |
| CN102868315A (en) * | 2012-10-12 | 2013-01-09 | 哈尔滨工业大学 | Paster-type bending vibration composite dual-feet ultrasound motor oscillator |
| CN204738943U (en) * | 2015-05-08 | 2015-11-04 | 长春工业大学 | SMD active type water -jet propulsion system of bending vibration |
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Application publication date: 20160518 |