Gear rack lifting drilling machine

Abstract

The invention relates to the technical field of petroleum drilling machines and equipment, in particular to a gear rack lifting drilling machine. The gear rack lifting drilling machine comprises a headframe body, a base, a tripping device, a drill stem moving device, a chuck, an upper makeup and breakout mechanism, an operating platform and a control device, wherein the headframe body comprises a headframe vertically connected above the base by chains, and two racks and guide rails symmetrically arranged on the same side of the headframe; the tripping device comprises a main body panel, a top driving head arranged on the main body panel, an elevator arranged under the top driving head, a driving motor arranged on the driving panel and roller wheels, wherein after being interlocked with gear wheels, the driving motor is matched with the racks on the headframe, and the roller wheels are matched with the guide rails on the headframe; and the drill stem moving device comprises a lifting arm the inner end of which is hinged with the base, a lifting hydraulic cylinder supporting the lifting arm to rise and fall and a drill stem gripping mechanism arranged on the outer end part of the lifting arm. The invention has the advantages of simplified structure of the drilling machine, convenient installation and transportation, low maintenance cost, long service life, convenient matching with automated devices and wide application.

Description

1. Technical field: [0001] The invention relates to the technical field of oil drilling rig equipment, in particular to a rack and pinion lifting drilling rig. 2. Technical background: [0002] Oil drilling rig is an important equipment for oil exploration and development. With the development of the oil industry, the types and technologies of drilling rigs are also constantly developing. But the mode of hoisting column all is to utilize the hoisting system that is made up of winch, crown block, swimming block, wire rope, hook etc. to hoist. [0003] Existing drilling rigs mainly include a derrick main body, a base, a tripping device, a drill pipe transfer device, a chuck, a make-up and breakout mechanism, a power unit, an operating console and a control device. Among them: the lifting device part (that is, when lifting or lowering the pipe string), the wire rope is wound by the winch, and the wire rope passes through the pulley block composed of the crown block and the sw...

AI Technical Summary

Problems solved by technology

Since the lifting system of the existing drilling rig does not have the function of pressing down the load, for some shallow wells and directional wells, the realization of the drilling process is limited

In addition, the lifting system of existing drilling rigs also has certain restrictions on the realization of automatic operations such as precise automatic drilling, automatic discharge and transfer of drill pipes, so it is very important to study a new type of lifting system to solve the problems existing in existing drilling rigs. necessary

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