Method for calculating height of traveling block of drum-type drilling and repairing machine

Abstract

The invention discloses a method for calculating the height of a traveling block of a drum-type drilling and repairing machine. The method comprises the following steps: firstly, calculating the increment average value of each whole circle of winding rope on the radius of a drum of a rope groove of a Ribbs roller; then calculating the length of each circle of inclined rope groove and straight rope groove of the Ribbs roller, determining the number of circles of each layer of the roller, calculating the length accumulation of each layer, and calculating the height of the large hook; and finally, due to the fact that the steel wire rope has an elastic stretching error in the load-bearing lifting process of the large hook, calibrating the height of the large hook according to comparison of the actual value and the calculated value of the height, and calculating the height of the large hook accurately. Aiming at the characteristics of the rope groove of the Ribbs roller, a spiral line length calculation method and an original height calibration method are adopted, the height of the large hook of the petroleum drilling machine can be accurately calculated, upper collision and lower smashing of the large hook in the operation process are effectively avoided, production safety is guaranteed, and production efficiency is improved.

Description

technical field [0001] The present invention relates to the field of calculating the hook height of drilling rigs, in particular to a method for calculating the height of the travel car of a drum type drilling and repairing machine, which is a hook height of a drum rope groove used for equipment such as oil drilling and repairing machines, coal bed methane drilling machines, and water well drilling machines Calculation method. Background technique [0002] Traditional oil drilling rigs mostly use mechanical hooks to prevent collisions. An overwind valve is installed on the winch to ensure that the crane will not be hit by the crown block, but it cannot be guaranteed that the turntable will not be hit by the lower. Its functions are not complete, the accuracy is poor, and it is easy to malfunction. In the height calculation technology of the existing oil drilling rig hook, its height calculation accuracy is low, and accidents of drilling hooks bumping up and down due to heigh...

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