Double-speed electric winch and operating method thereof
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United States of America
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Feb 4, 2020
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app pub date -
Aug 29, 2018
filing date -
Aug 29, 2018
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Abstract
The present disclosure discloses a double-speed electric winch and an operating method of the winch. The winch comprises two groups of planetary gears with different transmission ratios in a gearbox. The two groups of planetary gears have corresponding outer ring gears. The gearbox has a rotatable handle which has a locking head inserted in the gearbox. As the handle rotates, the locking head engages with the outer ring gears in different manners to provide a first rotating speed mode, a second rotating speed mode, and a disengaged mode.
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