Built-in piezoelectric-type online dynamic balance actuator
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United States of America Patent
Stats
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Jan 26, 2021
Grant Date -
Dec 10, 2020
app pub date -
Jul 19, 2018
filing date -
Jan 9, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A built-in piezoelectric type online dynamic balance actuator which includes two structurally identical left and right piezoelectric drive adjustment mechanisms at two sides of a housing. The piezoelectric drive adjustment mechanism includes a shaft having one end supported inside a housing chamber by bearing, a middle portion connected to an end cover by bearing, and the other end supported on bearing housing by bearing, a weight mass coupled to the shaft and positioned inside a tightening sleeve with one side connected to the bearing housing and another side connected to the end cover and the housing, and a stator fixedly connected to one side of the end cover, a mover pressed against a surface of the stator through a disk. Through a control center, the mass weights of the left and right piezoelectric drive adjustment mechanisms are fixed to a preset angle. As the main shaft rotates at a high speed, the two weight masses generate centrifugal force which combine to a balance vector to cancel the imbalance vector of the main shaft, improve the mass distribution of the main shaft and better fit the online dynamic balance requirements.
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Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 26, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 26, 2032 |
