发明名称 Hoisting apparatus for electric submersible pump units
摘要 A hoisting apparatus for submersible pump units (4), which is provided particularly for use in deep shafts, comprises a flexible traction element, a drive means for hoisting and lowering the traction element, and a coupling part (1) arranged at the lower end of the traction element, which is automatically connectable to and releasable from a corresponding connecting element (26) provided on the submersible pump unit. In order to ensure that the coupling part (1) can be attached easily and automatically to the connecting element (26) provided on the submersible pump unit and can be released again therefrom with equal ease, and particularly can be guided accurately down to the connecting element without major outlay, the coupling part (1) arranged on the traction element exhibits an eye (2) which encloses with play the electric cable (5) passed down to the electric motor (3) of the submersible pump unit (4), while the connecting element (26) provided on the submersible pump unit is arranged in immediate proximity to the electric cable (5).
申请公布号 US4573726(A) 申请公布日期 1986.03.04
申请号 US19840596946 申请日期 1984.04.05
申请人 BLUM, ALBERT 发明人 BLUM, ALBERT
分类号 B66C1/28;B66C1/34;B66C1/62;B66C1/66;F04D29/60;(IPC1-7):B66C23/60 主分类号 B66C1/28
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