ROPE WINDER, PETROLEUM INSTRUMENT SALVAGING SYSTEM AND PETROLEUM INSTRUMENT HOISTING SYSTEM

摘要

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.

主权项

1. A rope winder, for salvaging or hoisting a petroleum instrument via a rope (3), which comprises: a rack (1), and a winding drum (2) that is set on the rack (1) for releasing and retracting the rope (3); wherein, the rope winder further comprises:
a first turning wheel (8), which is set on the rack (1) and is located on a rope releasing and retracting line of the winding drum (2), wherein the wheel rim of the first turning wheel (8) has a first groove, which fits the rope (3) to rotate synchronously as driven by the rope (3); an electronic counter (10), which is connected with the first turning wheel (8), for obtaining the number of revolutions of the first turning wheel (8); a calculating unit, for calculating the release distance and release speed of the rope (3) according to the number of revolutions of the first turning wheel (8); a speed regulating unit, for regulating the rotating speed of the winding drum (2) to regulate the release speed; and a first control unit, which is connected with the calculating unit and the speed regulating 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.