The present invention discloses a rope winder, which is used for salvaging or hoisting a petroleum instrument via a rope; the rope winder comprises: a rack, and a winding drum set on the rack for releasing and retracting a rope; a first turning wheel, which is set on the rack and is located on a rope releasing and retracting line of the winding drum, wherein the wheel rim of the first turning wheel has a first groove, which fits the rope to rotate synchronously as driven by the rope; an electronic counter, which is connected with the first turning wheel, for obtaining the number of revolutions of the first turning wheel; a calculating unit, for calculating the release distance and release speed of the rope according to the number of revolutions of the first turning wheel; a speed regulating unit, for regulating the rotating speed of the winding drum to regulate the release speed; and a first control unit, for controlling the speed regulating unit to regulate the release speed to a preset safe speed when the release distance is greater than or equal to a set safe distance. The invention further discloses a petroleum instrument salvaging system and a petroleum instrument hoisting system. By employing the above solutions, the current problem of impact and damage caused by too fast rope release during the salvaging or hoisting of a petroleum instrument can be solved.
ROPE WINDER, PETROLEUM INSTRUMENT SALVAGING SYSTEM AND PETROLEUM INSTRUMENT HOISTING SYSTEM
28.04.2016
Patent
Elektronische Ressource
Englisch
Rope winder, petroleum instrument salvaging system and petroleum instrument hoisting system
Europäisches Patentamt | 2018
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