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Sandwich type mode transition active water spraying propulsion device and driving method thereof

A mode conversion and water jet propulsion technology, which is applied in the direction of machines/engines, liquid variable displacement machines, pumps with flexible working elements, etc., can solve the problems of small driving force and low power density, and achieve large driving force, The effect of high power density and broad application prospects

Active Publication Date: 2016-05-18
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of small driving force and low power density in current piezoelectric water jet propulsion devices, the present invention discloses a sandwich mode conversion active water jet propulsion device and its driving method

Method used

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  • Sandwich type mode transition active water spraying propulsion device and driving method thereof
  • Sandwich type mode transition active water spraying propulsion device and driving method thereof
  • Sandwich type mode transition active water spraying propulsion device and driving method thereof

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specific Embodiment approach 1

[0040] Specific implementation mode one: combine Figure 1~Figure 22 This embodiment will be described. This implementation mode provides a specific implementation scheme of a sandwich mode conversion active water jet propulsion device. The sandwich mode conversion active water jet propulsion device is mainly composed of a valve single chip 1, a valve metal substrate 2, an end cover 3, a supporting rubber ring 4, a sealing ring 5, a cavity 6, fastening bolts 7, a pump It consists of a driving assembly 8, an enlarged diaphragm 9, a clamping block 10, a metal base plate 11 for a pump, a front cover 12 and a fastening screw 13.

[0041] The single wafer 1 for the valve is d 33 A circular piezoelectric ceramic sheet in the excitation mode is polarized along the thickness direction. The end surface of the single chip 1 for the valve is connected to the metal substrate 2 for the valve through epoxy resin glue, and the conductive wire 1 of the single chip 1 for the valve is -1 is...

specific Embodiment approach 2

[0052] Specific Embodiment 2: This embodiment provides a specific implementation scheme of a driving method for a sandwich-type mode conversion active water jet propulsion device.

[0053] The specific embodiment of the driving method of the sandwich type mode conversion active water jet propulsion device is: the valve uses a single chip 1 to apply an AC excitation electric signal to generate shortening and deformation, so that the volume of the valve chamber 6-1 Increase, the fluid flows into the valve chamber 6-1 through the water inlet 6-5 of the valve chamber; the valve uses a single chip 1 to apply an AC excitation electrical signal to cause elongation and deformation, and the pump uses a drive assembly 8 to apply it to generate The AC excitation electric signal twisted and deformed in one direction produces shortening deformation through the mode converter 8-1-1, so that the volume of the valve chamber 6-1 becomes smaller, the volume of the pump chamber becomes larger, an...

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Abstract

The invention discloses a sandwich type mode transition 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 sandwich type mode transition 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 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 sandwich type mode transition 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 [0001] The invention relates to a sandwich mode conversion active water jet propulsion device and a driving method thereof, belonging to the technical field of water jet propulsion. Background technique [0002] 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/04
Inventor 何丽鹏赵宏伟程光明
Owner CHANGCHUN UNIV OF TECH
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