Minisize linear driver based on dimorphic crystal piezoelectric film

A linear actuator, piezoelectric film technology, applied in micro manipulators, fluids using vibration, manipulators, etc., can solve problems such as inability to work, reduced output speed, and difficulty in miniaturization, achieving low cost, increased speed, and improved drive. effect of speed
CN1699032AInactive Publication Date: 2005-11-23SHANGHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI UNIV
Publication Date
2005-11-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention relates to a mini linear driver based on the bimorph conductive film, which comprises a driving mechanism and a moving supporting mechanism, wherein the driving mechanism covers on the central bearing and is oriented by the inertia mass block and hub in two ends, the moving supporting mechanism comprises the rigid frame of bimorph conductive film and the resilient supporting pin connecting the frame; said bimorph conductive film comprises ceramics chip of metal foil, characterized in that the rigid frame is round, quadrangle or regular polygon, on the edge there is 3~4 circular small punch holes distributed evenly; said resilient supporting pin is elastic wire through the rigid frame and small punch holes to connect them. Said invention is fit for mini robot driver in the ultra-fine pipe whose bore diameter is below 10mm.
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Description

technical field

[0001] The invention belongs to the voltage-driven driver utilizing the piezoelectric effect, and also belongs to the technical field of miniature mobile machinery capable of automatically walking in micropipes. Background technique

[0002] In buildings and industrial and mining enterprises, there are a large number of piping facilities such as water pipes, air pipes and oil pipes. Among them, thin tubes with an inner diameter of 10 mm or less are widely used. These pipelines have been used for many years, and the inside of the pipeline will be corroded, blocked, and even cracked, causing great hidden dangers to normal use, and sometimes causing accidents. In order to maintain safety or sanitation, regular internal inspection and cleaning must be carried out. However, the current running mechanism (or driver, robot, etc.) in the pipeline is either too large in radial dimension to enter the thin pipeline; or the output speed and propulsion force are too sma...

Claims

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