CN204738942U - A Sandwich Type Bending Vibration Compound Excitation Passive Water Jet Propulsion Device - Google Patents

Abstract

The utility model discloses a sandwich bending vibration complex excitation is by ejector half water -jet propulsion system to solve little, the low scheduling problem of power density of current piezoelectricity water -jet propulsion system drive power. The utility model discloses a valve with fold to pile, the valve for metal substrate, end cover, support rubber circle, sealing washer, cavity, the valve for umbrella valve, the pump for umbrella valve, fastening bolt, the pump for drive assembly, enlarged diaphragm, clamp tightly piece, for the pump metal substrate, front end housing and fastening screw, the cavity has valve pocket water inlet, pump chamber water inlet and leaks the hopper -shaped delivery port, and valve pocket water inlet and pump chamber water inlet have the disk seat, and the delivery port has hydrophobic structural. Apply the signal of telecommunication in the valve with fold to pile with drive assembly pump the for, produce flexible the deformation and centrifugal force respectively, make valve pocket and pump chamber alternation, realize the fluid inhale with the blowout, under water spray reaction force, the propulsion of realization device. The utility model discloses have advantages such as drive power is big, power density height, have wide application prospect in fields such as trace injection, military survey.

Description

A Sandwich Type Bending Vibration Compound Excitation Passive Water Jet Propulsion Device

technical field

The utility model relates to a sandwich type bending vibration compound excitation passive water spray propulsion device, which belongs to the technical field of water spray propulsion.

Background technique

The water-jet propulsion device is a micro-propulsion device that uses the reaction force of the water jetted by the propulsion pump to generate propulsion, and then realizes the motion output. As the power source of the propulsion device, the pump plays an important role in the water jet propulsion technology. At present, the propulsion pumps used in the water jet propulsion device are mainly axial flow pumps, mixed flow pumps and centrifugal pumps. This kind of power pump has low power density, resistance Disadvantages such as poor interference ability and complex structure make it difficult for water jet propulsion technology to meet the application requirements in the fields of robots, small detection, and precision instruments. The piezoelectric pump developed in the 1970s is a typical micro-miniature driving device, which has the characteristics of easy miniaturization, fast dynamic response, and anti-electromagnetic interference. In recent years, the research on using the piezoelectric pump as the power source of the water jet propulsion device to realize the motion output has received extensive attention. Compared with traditional water-jet propulsion devices, because of its technical advantages such as high power density, simple and compact structure, and large driving force, it has broad application prospects in technical fields such as micro-injection, military detection, and underwater robots.

Chinese utility model patent "miniature water jet propulsion pump", the authorized announcement number is CN 200989293 Y, and the authorized announcement date is December 12, 2007. A miniature water jet propulsion pump is disclosed, which is mainly composed of a pump body, a pump chamber, a pressure pump Composed of electric vibrators, the piezoelectric vibrator is used as the driving element. The piezoelectric vibrator is supported by the surrounding elastic elements in the cavity formed between the pump body and the cover. The pump body is provided with an inlet flow channel and an outlet flow channel. The inlet flow channel The axis of the valve cavity corresponding to the channel and the axis of the outlet flow channel are in the same plane and are perpendicular to each other. The rubber stop valve is used as the inlet valve at the inlet, and the outlet is the spout. There is no valve at the spout, and it is normally connected to the outside world. The inner cavity of the pump composed of the nozzle and the nozzle is an unclosed cavity; the Chinese utility model patent "Piezoelectric Water Jet Propulsion Device", the authorized announcement number is CN 202574604 U, and the authorized announcement date is May 07, 2012. Piezoelectric water jet propulsion device, the upper cover is fixedly connected with the pump body, the piezoelectric vibrator is supported by the upper elastic rubber ring and the lower elastic rubber ring, and forms a pump chamber with the upper cover, and there is a sealing ring between the upper cover and the pump body , the pump body is provided with water inlet 1 and water inlet 2, and a valve cavity is provided between the piezoelectric vibrator and the two water inlets, and the umbrella-shaped rubber valve 1 and the umbrella-shaped rubber valve are fixedly connected to the water inlet 1 and the water inlet 2 respectively. Valve two, a water outlet spout is arranged between the two water inlets, and the water outlet spout is directly connected with the outside world.

The piezoelectric water jet propulsion device of the above several implementation modes can realize the propulsion motion output of the device through the inhalation and ejection process of the fluid under the action of a certain excitation electric signal, but the piezoelectric water jet propulsion device of this implementation mode There are technical problems such as small driving force and low power density, which limit its application and development in technical fields such as micro-injection, military detection, and underwater robots.

Contents of the invention

In order to solve the technical problems of small driving force and low power density in the current piezoelectric water jet propulsion device, the utility model discloses a sandwich type bending vibration composite excitation passive water jet propulsion device.

The technical solution adopted by the utility model is: the sandwich type bending vibration compound excitation passive water spray propulsion device is composed of a valve stack, a valve metal substrate, an end cover, a supporting rubber ring, a sealing ring, a cavity , Umbrella valve for valve, umbrella valve for pump, fastening bolt, drive assembly for pump, enlarged diaphragm, clamping block, metal base plate for pump, front end cover and fastening screw. One end of the valve stack is glued to the metal substrate for the valve, and the other end is glued to the inner cavity wall of the end cover, and the current conducting wire of the valve stack passes through the wire hole on the end cover Lead out; the valve metal base plate is a metal elastic body structure, arranged on the inner stepped circular surface of the valve cavity, and fixedly installed between the end cover and the cavity through the support rubber ring; the level of the end cover The side is provided with an inner cavity structure, the inner cavity wall of the end cover is provided with a wire hole structure, the horizontal side of the end cover is also provided with a ring groove structure, and the horizontal side of the end cover is also provided with a sealing ring groove structure , the horizontal side of the end cover is also provided with four through hole structures, the vertical side of the end cover is provided with two internal thread hole structures, and the vertical side of the end cover is also provided with a sealing annular groove structure, the vertical side of the end cover is also provided with a semicircular through hole structure, the inner surface of the semicircular through hole is glued and sealed with one side of the cavity, and the end surface of the semicircular through hole is connected to the other side. The end face of the semicircular through hole of the end cover is glued and sealed. Both the supporting rubber ring and the sealing ring are elastic bodies with a ring structure. The cavity is provided with a valve cavity structure, the cavity is also provided with an inner stepped torus structure, the cavity is also provided with an annular groove structure, and the cavity is also provided with a sealing annular groove structure, the The cavity is also provided with a valve cavity water inlet structure, and the cavity is also provided with a pump cavity water inlet structure. The valve cavity water inlet and the pump cavity water inlet in the cavity are both provided with a valve seat structure. A funnel-shaped water outlet structure is provided, and the inner wall of the water outlet in the cavity is provided with a hydrophobic structure.

The drive assembly for the pump includes a front matching rod, a energized electrode sheet, a piezoelectric ceramic sheet, a rear matching rod and an insulating sleeve; The thread structure is provided with a smooth outer peripheral surface structure near the side of the external thread structure; the _energized electrode sheet is an annular copper sheet provided with a lug structure; The ring-shaped piezoelectric ceramic sheets are divided into two regions along the thickness direction and polarized; the insulating regions of the two piezoelectric ceramic sheets arranged on one side are arranged parallel to each other, and the insulating regions of the two piezoelectric ceramic sheets arranged on the other side are Arranged parallel to each other, the insulation area of the two piezoelectric ceramic sheets arranged on one side and the insulating area of the two piezoelectric ceramic sheets arranged on the other side are arranged perpendicular to each other, and the positive polarization surface of the adjacently arranged piezoelectric ceramic sheets is aligned with the positive polarization surface. The faces are arranged opposite to each other, and the negative polarization surface is arranged opposite to the negative polarization surface; the rear matching rod is a cylindrical structure elastic body, and the center of one end is provided with an internal thread hole structure, and the other end surface is glued to the metal substrate for the pump connection; the insulating sleeve is an annular insulator; the insulating sleeve is arranged on the smooth outer peripheral surface of the front matching rod; the energized electrode sheet and the piezoelectric ceramic sheet are arranged on the insulating sleeve at intervals. The energized wires of the energized electrode sheets are drawn out through the wire holes on the front end cover.

The enlarged diaphragm is a circular elastic body structure, arranged in a circular groove on one side of the clamping block; a through-hole structure is provided at the center of one side of the clamping block, and A circular groove structure is also provided, and the end surface of one side of the clamping block is also provided with a sealing annular groove structure, and the end surface of the other side of the clamping block is provided with a circular groove structure, and the end surface of the other side of the clamping block is also provided with a circular groove structure. A sealing annular groove structure is provided, and four through-hole structures are provided around the end surface on the other side of the clamping block. The metal base plate for the pump is a metal elastic body structure, arranged on the inner stepped circular surface of the front end cover, and fixedly installed between the front end cover and the clamping block by the support rubber ring, the metal base plate for the pump One end face is glued to the drive assembly of the pump. The front end cover is provided with an inner cavity structure, the inner cavity wall of the front end cover is provided with a wire hole structure, the end surface of one side of the front end cover is provided with an inner stepped ring surface structure, and the end surface of one side of the front end cover is also provided with a An annular groove structure, the end surface on one side of the front end cover is also provided with a sealing annular groove structure, and the end surface on the other side of the front end cover is provided with four countersunk through hole structures.

The beneficial effects of the utility model are: apply an AC excitation electric signal to the valve stack and the pump drive assembly to respectively excite them to generate telescopic deformation and centrifugal force, so that the volumes of the valve chamber and the pump chamber change alternately, and the suction and pumping of the fluid are completed. Jet out, under the reaction force of water spray, realize the propulsion motion output of the device. The utility model has technical advantages such as large driving force and high power density, and has broad application prospects in technical fields such as micro-injection, military detection, and underwater robots.

Description of drawings

Fig. 1 is a cross-sectional view of a sandwich type bending vibration compound excitation passive water jet propulsion device proposed by the utility model;

Figure 2 is a side view of a sandwich-type bending vibration composite excitation passive water jet propulsion device proposed by the utility model;

Figure 3 is a top view of the end cover of a sandwich-type bending vibration composite excitation passive water jet propulsion device proposed by the utility model;

Fig. 4 shows the A-A sectional view of the end cover of a sandwich type bending vibration compound excitation passive water jet propulsion device proposed by the present invention;

Figure 5 is a side view of the end cover of a sandwich-type bending vibration compound excitation passive water jet propulsion device proposed by the utility model;

Fig. 6 is a cross-sectional view of a cavity of a sandwich type bending vibration compound excitation passive water jet propulsion device proposed by the utility model;

Figure 7 is a partially enlarged view of the hydrophobic structure of the water outlet in the cavity of a sandwich-type bending vibration composite excitation passive water jet propulsion device proposed by the utility model

Figure 8 is a top view of the cavity of a sandwich-type bending vibration compound excitation passive water jet propulsion device proposed by the utility model;

Fig. 9 is a side view of the cavity of a sandwich-type bending vibration compound excitation passive water jet propulsion device proposed by the utility model;

Figure 10 is a cross-sectional view of a pump drive assembly of a sandwich type bending vibration composite excitation passive water jet propulsion device proposed by the present invention;

Figure 11 is a front view of the front matching rod in the pump drive assembly of a sandwich-type bending vibration composite excitation passive water jet propulsion device proposed by the present invention;

Figure 12 is a side view of the front matching rod in the pump drive assembly of a sandwich-type bending vibration composite excitation passive water jet propulsion device proposed by the present invention;

Figure 13 is a schematic diagram of the layout of piezoelectric ceramic sheets and energized electrode sheets in the pump drive assembly of a sandwich-type bending vibration composite excitation passive water jet propulsion device proposed by the present invention;

Figure 14 is a cross-sectional view of the rear matching rod in the pump drive assembly of a sandwich-type bending vibration composite excitation passive water jet propulsion device proposed by the present invention;

Fig. 15 is a side view of the rear matching rod in the pump drive assembly of a sandwich-type bending vibration composite excitation passive water jet propulsion device proposed by the present invention;

Figure 16 is a cross-sectional view of an insulating sleeve in a pump drive assembly of a sandwich-type bending vibration composite excitation passive water jet propulsion device proposed by the present invention;

Fig. 17 is a front view of the clamping block of a sandwich-type bending vibration compound excitation passive water jet propulsion device proposed by the utility model;

Figure 18 is a B-B cross-sectional view of the clamping block of a sandwich-type bending vibration composite excitation passive water jet propulsion device proposed by the present invention;

Figure 19 is a cross-sectional view of the front end cover of a sandwich type bending vibration composite excitation passive water jet propulsion device proposed by the present invention;

Fig. 20 is a front view of a front end cover of a sandwich type bending vibration compound excitation passive water jet propulsion device proposed by the utility model.

Detailed ways

Specific implementation manner 1: This implementation manner will be described with reference to FIG. 1 to FIG. 20 . This implementation mode provides a specific implementation scheme of a sandwich type bending vibration composite excitation passive water jet propulsion device. The sandwich type bending vibration compound excitation passive water jet propulsion device is mainly composed of a valve stack 1, a valve metal substrate 2, an end cover 3, a supporting rubber ring 4, a sealing ring 5, a cavity 6, and a valve Umbrella valve 7, pump umbrella valve 8, fastening bolt 9, pump driving assembly 10, amplifying diaphragm 11, clamping block 12, pump metal substrate 13, front end cover 14 and fastening screw 15 are composed.

The valve stack 1 is a low-voltage stack piezoelectric ceramics model XP series manufactured by Harbin Core Tomorrow Technology Co., Ltd., one end of which is glued to the valve metal substrate 2 by epoxy resin, and the other side is The end is pasted on the inner cavity wall 3-1-1 of the end cover 3 by epoxy resin glue, so as to realize the fastening installation of the piezoelectric stack 1 for the valve; Lead out through the wire hole 3-2 on the end cover 3 to realize the access of the external excitation power supply.

The metal base plate 2 for the valve is a metal elastic body structure, arranged on the inner stepped circular surface 6-2 of the valve cavity 6, and fixedly installed between the end cover 3 and the cavity 6 by the support rubber ring 4, One end surface of the valve metal substrate 2 is fixedly connected to the valve stack 1 through epoxy glue.

The horizontal side of the end cover 3 is provided with an inner cavity 3-1 structure, which is used to realize the fixed installation of the valve stack 1 and the inner cavity wall 3-1-1 through epoxy resin glue; the inner cavity of the end cover 3 The wall 3-1-1 is provided with a wire hole 3-2 structure, which is used to realize the lead-out of the valve stack 1 energized wire 1-1; the horizontal side of the end cover 3 is also provided with a circular groove 3-3 structure , which is used to support the arrangement of the rubber ring 4, and realize the clamping and fastening installation of the metal substrate 2 for the valve; the horizontal side of the end cover 3 is also provided with a sealing ring groove 3-4 structure, which is used for the installation of the sealing ring 5 arranged to realize the sealing of the valve cavity 6-1; the horizontal side of the end cover 3 is also provided with four through holes 3-5 structures, which realize the fast connection with the cavity 6 through fastening bolts 9; the end cover 3 The side of the vertical side is provided with two internal threaded holes 3-6, which realize the fast connection with the front cover 14, the clamping block 12 and the enlarged diaphragm 11 through the fastening screw 15; the vertical side of the end cover 3 One side is also provided with a sealing annular groove 3-7 structure, which is used for the installation arrangement of the sealing ring 5 to realize the sealing of the pump cavity; the vertical side of the end cover 3 is also provided with a semicircular through hole 3-10 structure The inner surface 3-8 of the semicircular through hole 3-10 is adhesively sealed with one side of the cavity 6; the end surface 3-9 of the semicircular through hole 3-10 is connected with the other end cover 3 semicircular through hole 3-10 end face 3-9 adhesive sealing.

The supporting rubber ring 4 is an elastic body with a ring structure, which is respectively arranged in the ring groove 3-3 of the end cover 3, the ring groove 6-3 of the cavity 6, the ring groove 12-4 of the clamping block 12 and the In the annular groove 14 - 3 of the front end cover 14 , clamping and fastening installation of the metal substrate 2 for the valve and the metal substrate 13 for the pump are realized respectively.

The sealing ring 5 is an elastic body with a ring structure, which is respectively arranged in the sealing annular grooves 3-2 and 3-7 of the end cover 3, the sealing annular groove 6-4 of the cavity 6, and the sealing annular groove 12 of the clamping block 12 -3 and 12-5 and the sealing annular groove 14-4 of the front cover 14 are used to realize the sealing of the valve chamber 6-1, the pump chamber and the device.

The cavity 6 is provided with a valve cavity 6-1 structure, which forms a closed cavity with the metal substrate 2 for the valve, the umbrella valve 7 for the valve and the umbrella valve 8 for the pump, and is used to realize the suction of fluid; the cavity The body 6 is also provided with an inner stepped circular surface 6-2 structure, which is used to realize the installation arrangement of the metal substrate 2 for the valve; the cavity 6 is also provided with a circular groove 6-3 structure, which is used to support the rubber ring 4, realize the clamping and fastening installation of the metal substrate 2 for the valve; the cavity 6 is also provided with a sealing ring groove 6-4 structure, which is used for the installation and arrangement of the sealing ring 5, and realizes the sealing of the valve cavity 6-1. Sealing; the cavity 6 is also provided with a valve cavity water inlet 6-5 structure, which is used to realize the flow of fluid in the valve cavity 6-1; the cavity 6 is also provided with a pump cavity water inlet 6-6 structure, which It is used to realize the flow of fluid in the pump cavity; the valve cavity water inlet 6-5 and the pump cavity water inlet 6-6 in the cavity 6 are all provided with a valve seat 6-7 structure, which is used for the valve umbrella valve 7 and The installation arrangement of the pump umbrella valve 8; the cavity 6 is also provided with a funnel-shaped water outlet 6-8 structure, which is used to realize the ejection of high-pressure fluid; the inner wall of the water outlet 6-8 in the cavity 6 A hydrophobic structure 6-8-1 is provided, which is used to reduce the flow resistance of the fluid and realize high-efficiency operation of the device.

The umbrella valve 7 for the valve and the umbrella valve 8 for the pump are both rubber stop valves, the spool of which is fixedly installed, and the periphery is fully opened.

The pump drive assembly 10 includes a front matching rod 10-1, a energized electrode sheet 10-2, a piezoelectric ceramic sheet 10-3, a rear matching rod 10-4 and an insulating sleeve 10-5; the front matching rod 10 -1 is a stepped cylindrical elastic body structure, and the end of the small diameter side of the front matching rod 10-1 is provided with an external thread 10-1-2 structure, which is used to connect with the inner thread of the end of the rear matching rod 10-4. The threaded hole 10-4-1 is screwed and connected to realize the clamping installation with the energized electrode sheet 10-2, the piezoelectric ceramic sheet 10-3, the rear matching rod 10-4 and the insulating sleeve 10-5; the front matching The side of the rod 10-1 close to the external thread 10-1-2 is provided with a smooth outer peripheral surface 10-1-1 structure, which is used to realize the installation arrangement of the insulating sleeve 10-5; the energized electrode piece 10-2 is An annular copper sheet with a lug structure is provided, which is used to realize the input of an external excitation power supply; the piezoelectric ceramic sheet 10-3 is four annular piezoelectric ceramic sheets in the d ₃₃ working mode, and they are all along the The thickness direction is divided into two regions of polarization; the insulating regions of the two piezoelectric ceramic sheets 10-3 arranged on one side are arranged parallel to each other, and the insulating regions of the two piezoelectric ceramic sheets 10-3 arranged on the other side are arranged parallel to each other, The insulating regions of the two piezoelectric ceramic sheets 10-3 arranged on one side and the insulating regions of the two piezoelectric ceramic sheets 10-3 arranged on the other side are arranged perpendicular to each other, and the adjacent arranged piezoelectric ceramic sheets 10-3 The positive polarization surface is arranged opposite to the positive polarization surface, and the negative polarization surface is arranged opposite to the negative polarization surface; the rear matching rod 10-4 is a cylindrical elastic body, and an internal thread hole 10-4- 1 structure, used for screwing connection with the external thread 10-1-2 of the front matching rod 10-1, realizing the connection with the front matching rod 10-1, energized electrode sheet 10-2, piezoelectric ceramic sheet 10-3 and insulating sleeve The clamping installation of the cylinder 10-5, the other end surface of the rear matching rod 10-4 is tightly connected with the pump metal substrate 13 through epoxy resin glue; the insulating sleeve 10-5 is an annular insulator; The insulating sleeve 10-5 is arranged on the smooth outer peripheral surface 10-1-1 of the front matching rod 10-1; the energized electrode sheet 10-2 and the piezoelectric ceramic sheet 10-3 are arranged at intervals on the insulating sleeve On the barrel 10-5; the energized wire of the energized electrode sheet 10-2 is drawn out through the wire hole 14-5 on the front end cover 14.

The enlarged diaphragm 11 is a circular elastic body structure, which is arranged in a circular groove 12-2 on one side of the clamping block 12, and is connected with the front end cover 14, the clamping block 12 and the end cover by fastening screws 15. 3; the amplifying diaphragm 11 is used to amplify the mechanical deformation of the metal substrate 13 for the pump.

A through hole 12-1 structure is provided at the center of one side end surface of the clamping block 12; a circular groove 12-2 structure is also provided on one side end surface of the clamping block 12, which is used to realize the arrangement of the enlarged diaphragm 11 Installation; the end face of one side of the clamping block 12 is also provided with a sealing annular groove 12-3 structure, which is used for the installation and arrangement of the sealing ring 5 to realize the sealing of the pump cavity; the end face of the other side of the clamping block 12 is provided with The ring groove 12-4 structure is used to support the arrangement of the rubber ring 4 to realize the clamping and fastening installation of the metal substrate 13 for the pump; the other end surface of the clamping block 12 is also provided with a sealing ring groove 12-5 structure, which is used for the installation arrangement of the sealing ring 5 to realize the sealing of the device; the other side of the clamping block 12 is also provided with four through hole 12-6 structures around the end surface, which are used to realize the connection with the fastening screw 15 The fastening connection of the front end cover 14, the amplifying diaphragm 11 and the end cover 3.

The metal base plate 13 for the pump is a metal elastic body structure, arranged on the inner stepped circular surface 14-2 of the front end cover 14, and fixedly mounted on the contact between the front end cover 14 and the clamping block 12 through the support rubber ring 4 On the surface, one end surface of the pump metal substrate 13 is fixedly connected to the pump drive assembly 10 through epoxy glue.

The front end cover 14 is provided with an inner cavity 14-1 structure; the inner cavity wall 14-1-1 of the front end cover 14 is provided with a wire hole 14-5 structure, which is used to realize the connection of the electric wire of the pump drive assembly 10. Lead out; the end face of the front end cover 14 is provided with an inner stepped circular surface 14-2 structure, which is used to realize the installation and arrangement of the metal substrate 13 for the pump; the end face of the front end cover 14 is also provided with an annular groove 14 -3 structure, which is used to support the arrangement of the rubber ring 4, and realize the clamping and fastening installation of the metal substrate 13 for the pump; the end surface of the front end cover 14 is also provided with a sealing ring groove 14-4 structure, which is used for sealing The installation and arrangement of the ring 5 realizes the sealing of the device; the other side of the front end cover 14 is provided with four countersunk through holes 14-6 structures, which are used for the installation and arrangement of the fastening screws 15 to realize the connection with the clamping block 12 1. Enlarge the tight connection between the diaphragm 11 and the end cap 3 .

Specific implementation mode 2: This implementation mode provides a specific implementation scheme of a driving method for a sandwich type bending vibration composite excitation passive water jet propulsion device.

The specific embodiment of the driving method of the sandwich-type bending vibration compound excitation passive water jet propulsion device is: the valve uses the stack 1 to apply an AC excitation electric signal to generate shortening and deformation, so that the valve chamber 6-1 The volume of the valve increases, and the umbrella valve 7 is forced to open, and the fluid flows into the valve cavity 6-1 through the water inlet 6-5 of the valve cavity; Electric signal, the pump uses the driving assembly 10 to apply an AC excitation electric signal to generate a direction of oscillating movement, and generate a direction of centrifugal force, so that the volume of the valve chamber 6-1 becomes smaller, and the volume of the pump chamber becomes larger. When the valve umbrella valve 7 is forced to close, the pump umbrella valve 8 is forced to open, and the fluid flows into the pump cavity through the pump cavity water inlet 6-6 to complete the primary water absorption process of the utility model; the pump drive assembly 10 Apply an AC excitation electric signal that causes it to shake the head in the opposite direction, and generate a centrifugal force in the opposite direction, so that the volume of the pump chamber becomes smaller. At this time, the umbrella valve 8 for the pump is forced to close, and the fluid is sprayed out through the water outlet 6-8 , complete a water spraying process of the utility model. The utility model realizes the propulsion motion output of the device under the reaction force of water spray.

The AC excitation electrical signal passed through the stack 1 for the valve is a sine wave or square wave periodic electrical signal of a certain frequency, and the pump is composed of two piezoelectric ceramic sheets 10-3 arranged on one side of the driving assembly 10. The excitation group A1 is applied with a sine wave periodic electrical signal of a certain frequency, and the pump uses two piezoelectric ceramic sheets 10-3 arranged on the other side of the drive assembly 10 to form the excitation group A2, and an electric signal of the same frequency is applied. A cosine wave periodic electrical signal, the phase difference of the AC excitation electrical signals applied by the excitation group A1 and the vibration excitation group A2 is 90 degrees or 270 degrees, and the AC excitation electrical signals applied by the vibration excitation group A1 and A2 When the phase difference between the valves is 90 degrees and 270 degrees, respectively, the pump drive assembly 10 can respectively realize the two-direction oscillating motion and generate the centrifugal force in two directions; the valve stack 1 communicates with the pump drive assembly 10 The phase difference of the AC excitation electric signal is 180 degrees.

Claims (8)

1. a sandwich bending vibration complex excitation passive-type hydraulic jet propulsion system, is made up of with stacking (1), valve-use metal substrate (2), end cap (3), support rubber circle (4), seal ring (5), cavity (6), valve umbrella valve (7), pump umbrella valve (8), clamping bolt (9), pump driven unit (10), amplification diaphragm (11), clamp (12), pump metal substrate (13), front cover (14) and fastening screw trip bolt (15) valve.

2. a kind of sandwich bending vibration complex excitation passive-type hydraulic jet propulsion system according to claim 1, it is characterized in that: described end cap (3) horizontal side is provided with inner chamber (3-1) structure, described end cap (3) internal chamber wall (3-1-1) is 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 circular groove (3-4) structure, described end cap (3) horizontal side is also provided with four through hole (3-5) structures, described end cap (3) vertical side side is provided with two interior threaded hole (3-6) structures, described end cap (3) vertical side side is also provided with sealing circular groove (3-7) structure, described end cap (3) vertical side side is also provided with semi-circular through hole (3-10) structure, described semi-circular through hole (3-10) inner side surface (3-8) and cavity (6) side adhesive sealing, 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. a kind of sandwich bending vibration complex excitation passive-type hydraulic jet propulsion system 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 circular groove (6-4) structure, described cavity (6) is also provided with valve pocket water inlet (6-5) structure, described cavity (6) is also provided with pump chamber water inlet (6-6) structure, in described cavity (6), valve pocket water inlet (6-5) and pump chamber water inlet (6-6) are provided with valve seat (6-7) structure, described cavity (6) is also provided with funnel-like water outlet (6-8) structure, in described cavity (6), water outlet (6-8) inwall is provided with hydrophobic structure (6-8-1).

4. a kind of sandwich bending vibration complex excitation passive-type hydraulic jet propulsion system according to claim 1, it is characterized in that: described clamp (12) central position, side end face is provided with through hole (12-1) structure, described clamp (12) side end face is also provided with circular trough (12-2) structure, described clamp (12) side end face is also provided with sealing circular groove (12-3) structure, described clamp (12) opposite side end face is provided with annular groove (12-4) structure, described clamp (12) opposite side end face is also provided with sealing circular groove (12-5) structure, described clamp (12) opposite side end face surrounding is also provided with four through hole (12-6) structures.

5. a kind of sandwich bending vibration complex excitation passive-type hydraulic jet propulsion system according to claim 1, it is characterized in that: described front cover (14) is provided with inner chamber (14-1) structure, described front cover (14) internal chamber wall (14-1-1) is provided with wire guide (14-5) structure, described front cover (14) side end face is provided with interior step ladder circular ring face (14-2) structure, described front cover (14) side end face is also provided with annular groove (14-3) structure, described front cover (14) side end face is also provided with sealing circular groove (14-4) structure, described front cover (14) opposite side end face is provided with four countersunk head through hole (14-6) structures.

6. a kind of sandwich bending vibration complex excitation passive-type hydraulic jet propulsion system according to claim 1, it is characterized in that: described valve is connected with metal substrate (2) is gluing with stacking (1) one side end, end side is connected with the internal chamber wall (3-1-1) of end cap (3) is gluing, and the described valve electrified wire (1-1) stacking (1) is drawn by the wire guide (3-2) on end cap (3).

7. a kind of sandwich bending vibration complex excitation passive-type hydraulic jet propulsion system according to claim 1, is characterized in that: described pump driven unit (10) comprises front matching stub (10-1), powered electrode sheet (10-2), piezoelectric ceramic (10-3), rear matching stub (10-4) and insulating sleeve (10-5); Described front matching stub (10-1) is stepped cylindrical shape elastomer structure, described front matching stub (10-1) path one side end is provided with outside thread (10-1-2) structure, and described front matching stub (10-1) is provided with smooth external peripheral surface (10-1-1) structure near outside thread (10-1-2) side; Described powered electrode sheet (10-2) is for being provided with the ring copper sheet of ledge arrangement; Described piezoelectric ceramic (10-3) is 4 d ₃₃the ring piezoelectric ceramic of mode of operation, and all through-thickness is divided into the polarization of twoth district; The insulating regions of 2 piezoelectric ceramics (10-3) that wherein side is arranged is parallel to each other layout, the insulating regions of 2 piezoelectric ceramics (10-3) that opposite side is arranged is parallel to each other layout, the insulating regions of 2 piezoelectric ceramics (10-3) that the insulating regions of 2 piezoelectric ceramics (10-3) that side is arranged and opposite side are arranged is arranged vertically mutually, positive polarization face and the positive polarization face of the piezoelectric ceramic (10-3) of adjacent layout are positioned opposite, negative polarization face and negative polarization face positioned opposite; Described rear matching stub (10-4) is round column structure elastomer, and one side end central position is provided with interior threaded hole (10-4-1) structure, and described rear matching stub (10-4) opposite side end face is fastenedly connected by epoxy resin glue and pump metal substrate (13); Described insulating sleeve (10-5) is circular insulator; Described insulating sleeve (10-5) is arranged on the smooth external peripheral surface (10-1-1) of front matching stub (10-1); Described powered electrode sheet (10-2) is arranged on insulating sleeve (10-5) with piezoelectric ceramic (10-3) is spaced; The electrified wire of described powered electrode sheet (10-2) is drawn by the wire guide (14-5) on front cover (14).

8. a kind of sandwich bending vibration complex excitation passive-type hydraulic jet propulsion system 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 the contact surface being installed on end cap (3) and cavity (6) is gripped by support rubber circle (4), (1) is gluing to be connected with stacking for a side end face and the valve of described valve-use metal substrate (2); Described pump metal substrate (13) is metallic elastic body structure, is arranged on the interior step ladder circular ring face (14-2) of front cover (14), and described pump one side end face of metal substrate (13) is connected with pump driven unit (10) is gluing.