Chain Top Drive Drilling Rig

Abstract

The invention discloses a chain-type top drive drilling rig, which comprises a base, a derrick vertically fixed on the base, a drilling device arranged on the derrick to move up and down, and a top drive device suspended below the drilling device. The middle part of the derrick The guide rails with groove structure are all arranged, and the inner wall of the same side of the guide rails is fixed with a chain; the drill sending device includes a drill sending drive device and a sprocket, and the two sprockets are respectively meshed with the chain, and the drill sending drive The device is respectively connected with the two sprockets through the transmission mechanism of the drill, and the upper and lower sides of the transmission device are respectively fixed with limit mechanisms; Joint connection, one side of the top drive device is provided with a ring angle rotation device, and the ring angle rotation device is provided with a ring; the base is provided with a back clamp. It is simple and compact in structure, easy to install, small in size, safe and reliable, can reduce labor intensity of workers and improve work efficiency.

Description

technical field [0001] The invention relates to a drilling rig, in particular to a chain type top drive drilling rig. Background technique [0002] The oil drilling rig is an important equipment in oil exploration and development. The drilling rig drives the drilling tool to drill underground, breaks the rock at the bottom of the hole, and lowers or raises the drilling tool in the hole. Existing methods for hoisting pipe strings generally use winches, cranes, wire ropes, hooks, etc. to lift. [0003] The existing drilling rig generally adopts the structure of the kelly and the turntable in the lifting device part. The wire rope is wound by the winch, and then the wire rope passes through the crown block, etc. to drive the hook to lift or lower the pipe string. This kind of kelly and turntable The structure is complex, the volume is large, and the steel wire rope needs to be checked and replaced regularly, which poses a safety hazard; at the same time, the driller on the dri...

AI Technical Summary

Problems solved by technology

[0003] The existing drilling rig generally adopts the structure of the kelly and the turntable in the lifting device part. The wire rope is wound by the winch, and then the wire rope passes through the crown block, etc. to drive the hook to lift or lower the pipe string. This kind of kelly and turntable The structure is complex, the volume is large, and the steel wire rope needs to be checked and replaced regularly, which poses a safety hazard; at the same time, the driller on the drill floor needs to hold the brake handle by hand when sending the drill, which is not only labor-intensive, but also low in work efficiency; in addition, now Generally use the old-fashioned tower derrick, which is large in size and occupies a large area

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