井车

  井车是古人从深井中提水进行灌溉的工具,大约产生于唐代(公元618年~907年)。井车从辘轳发展变化而来,主要结构包括卧齿轮、立齿轮、立水轮以及一串木桶链。卧齿轮被人力或畜力驱动啮合立齿轮,立齿轮与立水轮连接在一个轴上,木桶链缠绕在立水轮上。由于井车是垂直于地底取水,因此在中国西南地区也用于盐井汲取盐水。井车的出现适应了雨水缺少、地下水位低的特点。
  Jing Che is a kind of tool lifting water from deep wells, occurring in Tang Dynasty (618-907), Jing Che is developed based on windlass. Jing Che mainly includes a lying gear, a standing gear, a standing water wheel and a series of bucket chain. Humans or animals can push the lying gear, which matches with the standing gear. The standing gear connects with the water wheel in the same axle, while the bucket chain is twisted around the wheel. Since Jing Che is vertical to the ground when water, it is also used to draw salt water in Southwest China.

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来源:中国数字科技馆 标签: 井车
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