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A quick connection method for lifting and pressing chain of a roller cone drilling rig

A technology of pressurized chain and quick connection, applied in drill pipe, drill pipe, earthwork drilling, etc., can solve the problems of high labor intensity and manual movement of the chain, and achieve the effect of reducing labor intensity and preventing personal injury accidents.

Active Publication Date: 2020-09-29
BAOTOU IRON & STEEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] From the perspective of the labor conditions of the operators, during the process of connecting the chain, the three operators at the top must manually move the chain, which is labor intensive.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] A quick connection method for lifting and pressing chains of a roller cone drilling rig, specifically comprising the following steps:

[0030] S1. After the failure of the lifting chain broke and fell to the drilling rig platform, 2 operators were adjusted to the broken chain equipment to prepare for the chain connection;

[0031] S2, after the personnel are in place, pull the hoisting chains that have fallen and piled up from the upper part of the drilling rig platform to the ground at the rear of the drilling rig to straighten and align the chains along the winding direction;

[0032] And check whether the dropped lifting chain pins and stop pins are complete, and check whether there is a place where the chain is deformed due to falling from a high place. If there is deformation, replace it in time;

[0033] S3. Weld two fixed pulleys A and B with cable grooves to the upper part of the drilling rig platform. Among them, the fixed pulley A is welded to the position 20...

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Abstract

The invention discloses a quick connection method for lifting and pressurizing a chain of a geared drill. The feasibility and advancement of the new method are verified through application in actual work. The quick connection method is an operation method capable of thoroughly improving the labor intensity of operators, improving the chain connection efficiency and effectively preventing the occurrence of safety accidents and quickly treating chain breakage faults.

Description

technical field [0001] The invention relates to a quick connection method for lifting and pressing chains of a roller cone drilling rig. Background technique [0002] Barun Branch is a super-large metal mine and currently has 19 sets of heavy-duty piercing equipment. The type 2 roller cone drilling rig used is a high drill frame, which adopts the top rotary closed chain drive to continuously pressurize, and the single closed chain for lifting and pressing has 946 sections, with a total length of 50 meters, and there are 2 in total. Since its operation in September 2009, the chain of the roller cone drilling rig frequently breaks and falls from the top of the drill frame. After the breakage, the chain will fall along the chain box of the drill frame to the drilling platform, which seriously restricts the efficiency of the equipment. , in addition, it is difficult to fundamentally eliminate the fault of chain breakage. It is necessary to adopt safe and efficient operation met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/084
CPCE21B19/084
Inventor 吕二永王珍涛李兵李东青李学军黄大江范美霞
Owner BAOTOU IRON & STEEL GRP