Surface assembly for rope pumps

专利名称：Surface assembly for rope pumps发明人：Mark S. Williams申请号：US08/120185申请日：19930913公开号：US05423415A公开日：19950613

摘要：A rope pump for conveying fluid-like material from a reservoir to a selectlocation includes an endless rope, pulleys for forming the endless rope into a loopextending between the reservoir and the select location and an improved drive fordriving the endless rope about the pulleys. The improved drive includes first and secondsheaves each having a plurality of circumferencial grooves and an axis of rotation. Thefirst and second sheaves are mounted to shafts for rotation about their respective axesof rotation. The sheaves are radially spaced with the grooves of the first sheave alignedwith the grooves of the second sheave and the respective axes of rotation being inparallel. A motor is provided in operative association with one of the first and secondsheaves for rotating the sheave about its axis. The endless rope is wrapped between thefirst and second sheaves with the rope extending between and engaging aligned groovesand adjacent grooves a select number of times to provide a selective tractive force. Abiased tensioner wheel biases the rope to maintain the rope in constant engagementwith the final rope engaging groove of the first and second sheaves.

申请人：RED TOP PUMP CO., LTD.

代理机构：Swanson & Bratschun

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