CN102252666A - Gyro based on conical spiral flow pipe valve-pressure-free electric pump - Google Patents
Gyro based on conical spiral flow pipe valve-pressure-free electric pump Download PDFInfo
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- CN102252666A CN102252666A CN2011101675532A CN201110167553A CN102252666A CN 102252666 A CN102252666 A CN 102252666A CN 2011101675532 A CN2011101675532 A CN 2011101675532A CN 201110167553 A CN201110167553 A CN 201110167553A CN 102252666 A CN102252666 A CN 102252666A
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Abstract
The invention relates to a gyro based on a conical spiral flow pipe valve-pressure-free electric pump, which comprises a pump body hermetically consisting of an upper cover and a lower cover; a pump cavity for accommodating a piezoelectric vibrator is formed in the pump body, a conical table is fixedly arranged on the upper cover, and the bottom of the conical table is fixedly arranged on the upper cover; the lateral surface of the conical table is provided with a conical spiral flow pipe groove, a conical cover is sleeved outside the conical table, the top of the conical cover is open, a clearance is formed between the conical cover and the conical table, and first and second direct flow pipes are arranged in the conical table; one end of the conical spiral flow pipe groove is communicated with the clearance, the other end of the conical spiral flow pipe groove is communicated with the pump cavity, a piezoelectric film sensor is fixed at the top of the conical spiral flow pipe groove, and a lead is led out of the conical cover; and a first duct communicated with the clearance is fixed at the opening of the top of the conical cover. The gyro senses the angular velocity of external disturbance by measuring the output pressure of a pump through the piezoelectric film sensor, so that the conical spiral flow pipe valve-pressure-free electric pump has the property of the gyro. The gyro has the advantages of simple structure, wide manufacturing material source, low cost, easiness in implementation, low energy consumption, no electromagnetic interference, relatively high sensitivity and the like, and can be widely applied to posture control of civil carriers.
Description
Technical field
The present invention relates to a kind of gyro, relate in particular to a kind of gyro based on Valveless piezoelectric pump.
Background technology
The former rigid body that means high speed rotating of gyro, and generally can measure the angular velocity in relative inertness space now and the device of angular displacement is called gyro.Because gyro has the characteristic of independent navigation ability,, be one of technology of giving priority to of various countries so since coming out, just caused that people greatly pay close attention to always.Gyroscopic instrument not only can be used as indicating instrument, and the more important thing is that it can be used as a sensitive element in the automatic control system, promptly can be used as signal transducer.As required, gyroscope can provide signal such as orientation, level accurately, so that driver or control sail bodies such as aircraft, naval vessel or space shuttle by certain airline operation with preset device, and in the navigation of sail bodies such as guided missile, satellite vehicle or space exploration rocket, then directly utilize these signals to finish the attitude control of sail body.As stabilizator, gyroscopic instrument can make train travel on single track, can reduce boats and ships waving in stormy waves, and the relative ground of the camera that is installed on aircraft or the satellite is stablized or the like.As fine measuring instrument, gyroscope can provide azimuth reference accurately for surface facility, mining tunnel, subterranean railway, oil drilling and MISSILE LAUNCHING etc.This shows that gyro The Application of Technology scope is quite widely, it all accounts for consequence in the modern national defense construction and the development of the national economy.
Though the birth of gyro is the history in existing more than 100 year so far, but at present owing to be subjected to the restriction of factors such as cost, technology, gyroscope is applied to large-scale high performance Navigation And Guidance such as naval vessels, guided missile, aircraft system mostly, the application that is used in civilian delivery vehicle aspect but seldom, therefore, invention makes that a kind of technology is simple, with low cost, can to widely apply the gyroscope on civilian delivery vehicle be very necessary.
Summary of the invention
Technical matters
It is simple that the technical problem to be solved in the present invention provides a kind of processing and fabricating, with low cost, and have a kind of gyro based on cone-type spiral stream pipe Valveless piezoelectric pump of better precision.Overcome existing gyro technical sophistication, cost height, can not widely apply the shortcoming on civilian delivery vehicle.
Technical scheme
In order to solve above-mentioned technical matters, gyro based on cone-type spiral stream pipe Valveless piezoelectric pump of the present invention comprises the pump housing of being made up of loam cake and lower cover sealing, be provided with the pump chamber that accommodates piezoelectric vibrator in the pump housing, on cover and be set with the taper platform, taper platform bottom is installed in and covers; The side of described taper platform is provided with the cone-type spiral stream tube seat that is centered around its axis, the outer sheathed cone-shaped hood of taper platform, the cone-shaped hood top end opening and and the taper platform between a gap is arranged, be provided with in the taper platform be communicated with described gap and on cover first battery tube of through hole, described through hole is communicated with pump chamber; Be interference fit between described cone-shaped hood and the taper platform, cone-shaped hood forms cone-type spiral stream pipe with the opening sealing that cone-type spiral flows tube seat; The taper platform also is provided with second battery tube that is communicated with first battery tube; Cone-type spiral stream tube seat one end is communicated with the gap, the other end by on the intercommunicating pore that covers be communicated with pump chamber; Taper platform top is fixed with a piezoelectric film sensor, described piezoelectric film sensor is fixedly mounted between the gap and first battery tube, first battery tube is separated and is not communicated with the gap, thus two runners of formation piezoelectric pump, and outside cone-shaped hood, draw lead; Cone-shaped hood top end opening place is fixed with first conduit that is communicated with the gap, second battery tube is connected with second conduit, first conduit and second conduit are two fluid inlet and outlets of gyro of the present invention, first conduit and second conduit are arranged in parallel, and can bend as required, its openend be paralleled or perpendicular with the axis of taper platform.Among the present invention, loam cake, lower cover, pump chamber, piezoelectric vibrator, the taper platform that is carved with the taper chute, cone-shaped hood and piezoelectric film sensor constitute one and have the taper flow pipe Valveless piezoelectric pump of measuring the pressure reduction function, i.e. gyro.Wherein, the principle of work of pump is: piezoelectric ceramic piece and sheet metal as the two poles of the earth, are applied alternating voltage to piezoelectric vibrator, and piezoelectric vibrator produces axial vibration under inverse piezoelectric effect, cause that pump chamber changes, drive fluid is coming and going mobile along cone-type spiral pipeline, battery tube; Fluid is in round the flowing along the cone-type spiral pipeline, be subjected to disturbance to produce the influence of angular velocity and fluid self when cone-type spiral stream pipe moves owing to being subjected to earth rotation, the pump housing, the capital produces coriolis force, to producing not same-action along counterclockwise and right handed fluid, thereby the resistance difference that makes fluid flow and be subjected on by the travel directions of spiral sluice, make that having net flow in the whole cycle flows into and flow out from pump chamber, when piezoelectric vibrator continuous shaking, fluid will show as uniflux on macroscopic view, realize the function of pump.
Described helical flow tube seat by a ramp pan with on the intercommunicating pore that covers be connected, make between this helical flow tube seat and the pump chamber smoothly to be communicated with.
Usually, first battery tube and pump body top cover are perpendicular, and second battery tube is vertical mutually with first battery tube again; The axis of second battery tube should flow between the tube seat two neighboring sections chute at cone-type spiral, and extends to the outside from taper platform inside.
On cover and be provided with positioning screw hole and circular pit, the bottom surface of taper platform is provided with and the corresponding threaded hole in described positioning screw hole position, positioning screw hole matches with threaded hole circle is fixed in the circular pit.
With the corresponding position of the second battery tube opening one round hole is arranged on the cone-shaped hood, this round hole makes second battery tube extend to the outside from taper platform inside.
First conduit is communicated with the gap by the manhole on the cone-shaped hood, and cone-shaped hood is provided with a micropore, and the extended lead of piezoelectric film sensor goes out from this passing through micropores.
For reducing difficulty of processing, described cone-type spiral stream tube seat cross section is rectangular.
Described piezoelectric membrane force transducer is to be made by the piezoelectric with direct piezo electric effect, its principle is to utilize direct piezo electric effect to come the realizable force electricity to transform, promptly when piezoelectric is subjected to mechanical stress, will produce electric polarization, thereby the generation electric charge, the electric charge that is produced is directly proportional with mechanical stress.Utilize signal analysis device that the electric signal that is produced is carried out Measurement and analysis, just can obtain the size of power.
Below in conjunction with accompanying drawing principle of work of the present invention is described: gyroscopic apparatus of the present invention is fixed on a certain platform, set up the rectangular coordinate system in space shown in Figure 10 (a): direction is an X-axis from West to East, to being Y-axis, the vertical face of land is upward to being the Z axle from the south orientation north.If the angular velocity of earth rotation at the component of Z axle is
The angular velocity of fluid when cone-type spiral stream pipe flows is ω
2, when platform was subjected to external disturbance, the angular velocity of generation was ω at the component of Z axle
zThe output pressure P of pump be by
Decision, therefore can be expressed as
Apply alternating voltage to piezoelectric vibrator, pump is started working.Shown in Figure 10 (b), when the relative earth surface of platform static (not being subjected to external interference), i.e. ω=0 o'clock, because
Be definite value, so this moment
Be a steady state value, establishing this definite value is P
0At this moment, the liquid level in first conduit is h to the component of height on the Z axle of piezoelectric membrane
1, the liquid level in second conduit is h to the component of height on the Z axle of piezoelectric membrane
2, P then
0=(h
2-h
1) ρ g, wherein ρ is a fluid density, g is an acceleration of gravity.
When platform produces angular velocity because of being subjected to external interference, i.e. ω
z≠ 0, establish
At this moment, the liquid level in first conduit to the component of height on the Z axle of piezoelectric membrane by h
1Become
Liquid level in second conduit to the component of height on the Z axle of piezoelectric membrane by h
2Become
Then
If Δ P=P-P
0, Δ P can be on the occasion of, also can be negative value and zero.Exist corresponding relation between Δ P (or P) and the ω, promptly for each Δ P (or P) value, all there is a ω corresponding, that is to say the output pressure P that measures cone-type spiral stream pipe Valveless piezoelectric pump by piezoelectric film sensor, angle component ω on the Z axle of generation in the time of just can obtaining platform and be disturbed
z
Two conduits of this device are respectively bent 90 °, be fixed on the platform, utilize the principle of above-described measurement pressure reduction, the angle component ω on Y-axis that produces in the time of just can obtaining platform and be disturbed
y
The angle component ω on X-axis that produces when measuring table is disturbed
xPrinciple with above identical.
In sum, this angular velocity that installs the generation of disturbance to external world has the perception effect, and can just can obtain the concrete numerical value of this angular velocity by measuring output pressure Δ P (or P), has promptly realized the function of gyro.
3. beneficial effect: the gyro based on cone-type spiral stream pipe Valveless piezoelectric pump of the present invention have simple in structure, manufacturing materials wide material sources, with low cost, be easy to realize, low, the no electromagnetic interference (EMI) of power consumption, sensitivity be than advantages such as height, the attitude that can be widely used in civilian delivery vehicle is controlled.
Description of drawings
Fig. 1 is based on the gyro one-piece construction vertical view of cone-type spiral stream pipe Valveless piezoelectric pump;
Fig. 2 is based on the gyro one-piece construction A-A cut-open view of cone-type spiral stream pipe Valveless piezoelectric pump;
Fig. 3 loam cake B-B cut-open view;
Fig. 4 loam cake front view;
Fig. 5 (a) lower cover front view (b) lower cover C-C cut-open view;
Fig. 6 (a) is carved with taper platform front view (b) D-D cut-open view (c) E of helical flow tube seat to view;
Fig. 7 (a) cone-shaped hood front view (b) F-F cut-open view;
The structural representation of Fig. 8 piezoelectric film sensor;
Fig. 9 (a) combined cone spiral flow tube front view (b) G-G cut-open view;
Figure 10 gyro to measure angular velocity omega
z(pump pressure is poor) principle schematic.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 6, the gyro based on cone-type spiral stream pipe Valveless piezoelectric pump of present embodiment, comprise the pump housing of forming by loam cake 13 and lower cover 14 sealings, be provided with the pump chamber 12 that accommodates piezoelectric vibrator 2 in the pump housing, be set with taper platform 7 on the loam cake 13, taper platform 7 bottoms are installed on the loam cake 13, and loam cake 13 and lower cover 14 link together by bolt 11; Described taper platform 7 outside surfaces are provided with and are centered around its surperficial cone-type spiral stream tube seat 8, and taper platform 7 outer sheathed cone-shaped hoods 6 form cone-type spiral stream pipe thereby cone-shaped hood 6 is covered on the opening of cone-type spiral stream tube seat 8; Cone-shaped hood 6 top end openings and and taper platform 7 between a gap is arranged, be provided with first battery tube 16 that is communicated with through hole 15 on described gap and the loam cake 13 in the taper platform 7, described through hole 15 is communicated with pump chamber 12; Taper platform 7 also is provided with second battery tube 26 that is communicated with first battery tube 16, is used for fixing second conduit 20 is installed, and this conduit is as a gateway of pump; Cone-type spiral stream tube seat 8 one ends are communicated with the gap, and the other end is communicated with pump chamber 12 by the intercommunicating pore 3 on the loam cake 5; Taper platform 7 tops are fixed with a piezoelectric film sensor 17, described piezoelectric film sensor 17 is fixedly mounted between the gap and first battery tube 16, first battery tube 16 is separated and is not communicated with the gap, thereby form two runners of piezoelectric pump, and outwards draw lead 30 by the small through hole on the cone-shaped hood 6 18; Cone-shaped hood 6 top end opening places are fixed with first conduit 19 that is communicated with the gap, as another gateway of pump.
Shown in Fig. 6 (c), piezoelectric film sensor 17 is fixed in the stepped through hole 27 on first battery tube, 16 tops; Second battery tube 26 also is communicated with first battery tube 16 is vertical mutually, and second battery tube 26 is between cone-type spiral stream tube seat 8 two neighboring sections chutes.As shown in Figure 7, correspondingly, with the corresponding position of second battery tube, 26 openings one round hole 28 is arranged on the cone-shaped hood 6, this round hole 28 makes second battery tube 26 extend to the outside from taper platform 7 inside.
Shown in Fig. 3, Fig. 4, Fig. 6 (a), loam cake 13 is provided with positioning screw hole 22 and circular pit 12, the bottom surface of taper platform 7 is provided with and the corresponding threaded hole 25 in described positioning screw hole 22 positions, and positioning screw hole 22 matches with threaded hole 25 taper platform 7 is fixed in the circular pit 12.
As shown in Figure 5, piezoelectric vibrator 2 bondings are fixed in the ladder place of the stepped through hole 24 on the lower cover 14.
As shown in Figure 6, described cone-type spiral stream tube seat 8 lower ends are communicated with intercommunicating pore 3 gently by ramp pan 10.
As Fig. 7, shown in Figure 9, first conduit 19 is communicated with the gap by the manhole 9 on the cone-shaped hood 6, and cone-shaped hood 6 is provided with a micropore 18, and piezoelectric film sensor 21 extended leads 30 pass from this micropore 18.
As shown in Figure 8, the piezoelectric membrane force transducer is made of piezoelectric membrane 31, two-wire cable 30, little scale copper 33, conducting resinl 34, insulation and moisture-proofing film 29 etc., one deck conducting film is respectively being plated on the two sides of piezoelectric membrane 31; little scale copper 33 sticks on the surface of piezoelectric membrane; welded the good two-wire cable 30 of a kind of very thin elasticity on the solder joint 32 of little scale copper 33, scribbles insulation and damp-proof material at piezoelectric membrane 31, two-wire cable 30, little scale copper 33, conducting resinl 34.When the pressure on piezoelectric film sensor two sides not simultaneously, will make the both sides of piezoelectric membrane 31 produce electric charge, charge signal through charge amplifier amplify change into electric signal after, through analog to digital converter to computing machine accept to analyze, calculating and provide test result.In the present invention, use the piezoelectric membrane force transducer, measure the output pressure of pump.
For the ease of processing, the cross section of cone-type spiral stream tube seat 8 is rectangular.
In order to prevent in the use that each junction of gyro produces fluid leaks, can evenly be coated with silica gel sealing in the junction of each parts.
In the present embodiment, loam cake 13, lower cover 14, cone-shaped hood 6 all adopt the organic glass processing and manufacturing; The taper platform 7 that is carved with helical flow tube seat 8 can adopt the aluminium processing and manufacturing, also can adopt the organic glass processing and manufacturing; First conduit 19, second conduit 20 adopt commercially available, can intercept bending according to demand; Piezoelectric vibrator 2 adopts commercially available, and diameter is 50mm, the thick 0.1mm that is of piezoelectric ceramic piece and sheet metal, and the material of sheet metal is a brass; Piezoelectric film sensor 17 adopts commercially available, and diameter is 10mm, and thickness is no more than 0.1mm; Bolt (nut) 11, screw 4 are commercially available standard component, and the specification of screw is M2 * 5, and the specification of bolt is M3 * 16, and what cooperate with bolt is that specification is the hexagonal nut of M3.
Claims (9)
1. gyro based on cone-type spiral stream pipe Valveless piezoelectric pump, comprise the pump housing of forming by loam cake (13) and lower cover (14) sealing, be provided with the pump chamber (12) that accommodates piezoelectric vibrator (2) in the pump housing, it is characterized in that, be set with taper platform (7) on the loam cake (13), taper platform (7) bottom is installed on the loam cake (13); Described taper platform (7) side is provided with the cone-type spiral stream tube seat (8) that is centered around its central shaft, the outer sheathed cone-shaped hood (6) of taper platform (7), cone-shaped hood (6) top end opening and and taper platform (7) between a gap is arranged, be provided with described gap of connection and loam cake (13) in the taper platform (7) and go up first battery tube (16) of through hole (15), described through hole (15) is communicated with pump chamber (12); Taper platform (7) also is provided with second battery tube (26) that is communicated with first battery tube (16); Cone-type spiral stream tube seat (8) one ends are communicated with the gap, and the other end is communicated with pump chamber (12) by the intercommunicating pore (3) on the loam cake (5); Taper platform (7) top is fixed with a piezoelectric film sensor (17), described piezoelectric film sensor (17) is fixedly mounted between gap and first battery tube (16), first battery tube (16) and gap are separated and be not communicated with, and outside cone-shaped hood (6), draw lead (30); Cone-shaped hood (6) top end opening place is fixed with first conduit (19) that is communicated with the gap, and second battery tube (26) is connected with second conduit (20).
2. the gyro based on cone-type spiral stream pipe Valveless piezoelectric pump as claimed in claim 1 is characterized in that, described helical flow tube seat (8) is connected with intercommunicating pore (3) on the loam cake (13) by a ramp pan (10).
3. the gyro based on cone-type spiral stream pipe Valveless piezoelectric pump as claimed in claim 1 is characterized in that first battery tube (16) is vertical mutually with second battery tube (26).
4. the gyro based on cone-type spiral stream pipe Valveless piezoelectric pump as claimed in claim 1 is characterized in that, second battery tube (26) is positioned between cone-type spiral stream tube seat (8) the two neighboring sections chute.
5. the gyro based on cone-type spiral stream pipe Valveless piezoelectric pump as claimed in claim 1 is characterized in that first conduit (19) is arranged in parallel with second conduit (20), and openend all parallels with the axis of taper platform (7).
6. the gyro based on cone-type spiral stream pipe Valveless piezoelectric pump as claimed in claim 1, it is characterized in that, loam cake (13) is provided with positioning screw hole (22) and circular pit (12), the bottom surface of taper platform (7) is provided with and the corresponding threaded hole in described positioning screw hole (22) position (25), and positioning screw hole (22) matches with threaded hole (25) taper platform (7) is fixed in the circular pit (12).
7. the gyro based on cone-type spiral stream pipe Valveless piezoelectric pump as claimed in claim 1, it is characterized in that, cone-shaped hood (6) is gone up with the corresponding position of second battery tube (26) opening a round hole (28), and this round hole (28) makes second battery tube (26) extend to the outside from taper platform (7) inside.
8. the gyro based on cone-type spiral stream pipe Valveless piezoelectric pump as claimed in claim 1, it is characterized in that, first conduit (19) is communicated with the gap by the manhole (9) on the cone-shaped hood (6), cone-shaped hood (6) is provided with a micropore (18), and the extended lead of piezoelectric film sensor (21) (30) passes from this micropore (18).
9. the gyro based on cone-type spiral stream pipe Valveless piezoelectric pump as claimed in claim 1 is characterized in that, described cone-type spiral stream tube seat (8) cross section is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110167553.2A CN102252666B (en) | 2011-06-21 | 2011-06-21 | Gyro based on conical spiral flow pipe valve-pressure-free electric pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110167553.2A CN102252666B (en) | 2011-06-21 | 2011-06-21 | Gyro based on conical spiral flow pipe valve-pressure-free electric pump |
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| Publication Number | Publication Date |
|---|---|
| CN102252666A true CN102252666A (en) | 2011-11-23 |
| CN102252666B CN102252666B (en) | 2014-04-23 |
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|---|---|---|---|
| CN201110167553.2A Expired - Fee Related CN102252666B (en) | 2011-06-21 | 2011-06-21 | Gyro based on conical spiral flow pipe valve-pressure-free electric pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353777A (en) * | 2022-01-10 | 2022-04-15 | 长春汽车工业高等专科学校 | Piezoelectric synthesis jet gyroscope for balancing aircraft |
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2011
- 2011-06-21 CN CN201110167553.2A patent/CN102252666B/en not_active Expired - Fee Related
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| US20060083639A1 (en) * | 2004-10-12 | 2006-04-20 | Industrial Technology Research Institute | PDMS valve-less micro pump structure and method for producing the same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353777A (en) * | 2022-01-10 | 2022-04-15 | 长春汽车工业高等专科学校 | Piezoelectric synthesis jet gyroscope for balancing aircraft |
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