Bi-directional spiral rope arranging method applicable to well drilling winch

Abstract

The invention discloses a bi-directional spiral rope arranging method applicable to a well drilling winch. The bi-directional spiral rope arranging method applicable to the well drilling winch is characterized by comprising the steps that a, a bi-directional screw (5) is driven to rotate through rotating a chain wheel (6) in a drive device, b, the bi-directional screw (5) drives a sliding block nut (2) to move, the sliding block nut (2) is meshed with the bi-directional screw (5), and therefore a rope holder (3) installed on the sliding block nut (2) is driven to move, and rectilinear motion of rope arrangement is generated, c, the sliding block nut (2) moves to a limiting position, collides with a lead limiting switch (4) and changes the motion direction, and d, the sliding block nut (2) moves to the opposite direction, and therefore the rope holder (3) connected with the sliding block nut is driven, and a reciprocating rope arranging process is achieved. The bi-directional spiral rope arranging method applicable to the well drilling winch is under a sliding friction state during motion, and therefore the rope arrangement is in order, the phenomena of disordered ropes and mutual extrusion of steel wire ropes are avoided, the steel wire ropes are prevented from generating severe deformation, twist, bending and knotting, and service life of the steel ropes is prolonged.

Description

technical field [0001] The invention relates to a bidirectional helical rope laying method suitable for drilling drawworks. Background technique [0002] Although various types of winches have various structures, their essence generally consists of the following parts: [0003] (1) Drum, drum shaft assembly, which is the core working part of the winch. The drum should have sufficient rope capacity to ensure that the rope is in good condition to prolong the life of the wire rope; [0004] (2) The drawworks has a sensitive and reliable main brake mechanism and a good auxiliary brake, so that it can accurately adjust the drilling pressure, evenly feed the drilling tools, freely control the drilling speed and save the heaviest drill string during the drilling process. load brake; [0005] (3) Cat head and cat head shaft assembly, used to meet the needs of making and breaking buckles with tongs and other auxiliary lifting. Some cathead shafts are also equipped with sand fishi...

AI Technical Summary

Problems solved by technology

The current drilling drawworks system generally does not have a rope arrangement device, which causes the wire ropes of many drilling rig drums to be arranged in disorder, resulting in disordered ropes and mutual extrusion of the wire ropes, causing serious deformation, twisting, bending, and knotting of the wire ropes, which have to be scrapped in advance , not only causes great waste, but more seriously, it may bury serious safety hazards, especially in the use of deep well and ultra-deep well winch, this phenomenon is very common

At present, although there is a guide wheel on the winch, this guide wheel only has the effect of preventing the wire rope from swinging, and it is difficult to fundamentally solve the problem

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