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Paster sandwich type longitudinal and torsional complex-excitation passive water jet propulsion unit and drive method thereof

A technology of composite excitation and water jet propulsion, which is applied in the direction of machines/engines, liquid 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

Inactive 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 passive water-jet propulsion device and its driving method

Method used

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  • Paster sandwich type longitudinal and torsional complex-excitation passive water jet propulsion unit and drive method thereof
  • Paster sandwich type longitudinal and torsional complex-excitation passive water jet propulsion unit and drive method thereof
  • Paster sandwich type longitudinal and torsional complex-excitation passive water jet propulsion unit and drive method thereof

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specific Embodiment approach 1

[0028] Specific implementation mode one: combine Figure 1~Figure 20 This embodiment will be described. This embodiment provides a specific implementation of a patch-sandwich longitudinal-torsion composite excitation passive water jet propulsion device. The patch sandwich vertical torsion composite 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 Shaped valve 7, pump umbrella valve 8, fastening bolt 9, pump driving assembly 10, enlarged diaphragm 11, clamping block 12, pump metal substrate 13, front end cover 14 and fastening screw 15.

[0029] 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-...

specific Embodiment approach 2

[0041] Specific Embodiment 2: This embodiment provides a specific embodiment of a method for driving a patch-sandwich longitudinal-torsion compound excitation passive water jet propulsion device.

[0042] The specific embodiment of the driving method of the patch sandwich vertical torsion compound excitation passive water jet propulsion device is: the valve uses the stack 1 to apply an AC excitation electric signal to generate shortening deformation, so that the valve cavity 6- The volume of 1 increases, and the umbrella valve 7 for the valve is forced to open at this time, and the fluid flows into the valve cavity 6-1 through the water inlet 6-5 of the valve cavity; An excitation electric signal, the pump uses the driving assembly 10 to apply an AC excitation electric signal to generate a shaking head in one direction, and generate a centrifugal force in one direction, so that the volume of the valve chamber 6-1 becomes smaller, and the volume of the pump chamber becomes large...

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Abstract

The invention discloses a paster sandwich type longitudinal and torsional complex-excitation passive water jet propulsion unit and a drive method thereof, and the paster sandwich type longitudinal and torsional complex-excitation passive water jet propulsion unit is used for solving problems such as small driving force, lower power density and the like of a current piezoelectric hydraulic propulsion unit. The paster sandwich type longitudinal and torsional complex-excitation passive water jet propulsion unit comprises valve stacks, valve metal substrates, end covers, supporting rubber rings, sealing rings, cavities, valve umbrella-shaped valves, pump umbrella-shaped valves, fastening bolts, pump drive assemblies, an amplifying diaphragm, a clamping block, a pump metal substrate, a front end cover and fastening bolts, wherein each cavity is provided with valve cavity water inlets, pump cavity water inlets and a funnel-shaped water outlet; the valve cavity water inlets and the pump cavity water inlets are provided with valve seats; and each water outlet is provided with a hydrophobic structure. An electric signal is applied to the valve stacks and the pump drive assemblies to excite the valve stacks and the pump drive assemblies to respectively generate deformation caused by expansion and shrinkage, so that the volumes of the valve cavities and the pump cavities are alternatively changed to realize fluid suction and ejection, and propulsion of the unit is realized under water spray counter-acting force. The paster sandwich type longitudinal and torsional complex-excitation passive water jet propulsion unit has the advantages such as great drive force, high power density and the like, and has a wide application prospect in the fields of micro ejection, military detection and the like.

Description

technical field [0001] The invention relates to a patch sandwich longitudinal torsion compound excitation passive 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...

Claims

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Application Information

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IPC IPC(8): F04B43/04
Inventor 何丽鹏程光明李慧茹
Owner CHANGCHUN UNIV OF TECH
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