Unreasonable parameters obtained from well injection will lead to unnecessary energy loss. Now, there are only few of theoretical research results about energy loss of surface pipelines and shafts.
They are usually mounted on shafts that are 90 degrees apart but can be designed to work at other angles as well.
通常，锥齿轮的两轴呈90度，但也可以设计成其他角度。
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The invention is suitable for single well lids, double well lids, square well lids, circular well lids, and cast-iron well lids in various shapes with shafts, no shafts, broken shafts, and the like.