Tool bit conveying and obstacle crossing mechanism used for submarine pipeline cutting device
A cutting device and submarine pipeline technology, applied in the field of marine engineering, can solve problems such as sea area transportation, fishery production hazards, oil and gas exploration and development safety hazards, crude oil residual liquid leakage, etc., to achieve enhanced cutting stability, simple structure, and convenient operation Effect
Pending Publication Date: 2020-08-25
中石化石油工程技术服务有限公司 +2
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Problems solved by technology
These abandoned submarine pipelines have caused serious safety hazards to the oil and gas exploration and development, marine environment and fishery production in the area.
[0003] Due to the crude oil residue in the abandoned pipeline, when the abandoned submarine pipeline is damaged by the marine environment such as ocean corrosion or ocean current erosion, the crude oil residue in the abandoned pipeline will leak into the ocean, causing serious pollution. Hazards to transportation and fishery production in the sea area
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[0017] A knife head conveying obstacle surmounting mechanism for a submarine pipeline cutting device, including an oil cylinder 9 connected to a cutting and conveying arm 3 to provide power for the linear reciprocating motion of the cutting and conveying arm 3. The cutting and conveying arm 3 is a bar-shaped The strip-shaped structure of the through-slot, the strip-shaped through-slot is sleeved on the guide groove at the end of the guide shaft 4, the two long sides of the strip-shaped through-slot snap into the guide groove, and the cutting and conveying arm 3 passes through the strip-shaped through-slot and the guide groove Sliding fit to carry out linear reciprocating motion, the cutting conveying arm 3 is also provided with a plurality of threaded holes for fixedly connecting the suspension mechanism 5, the suspension mechanism 5 can be fixed on the cutting conveying arm 3 with bolts, and elastic compression is installed horizontally below the suspension mechanism 5 Mechani...
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The invention aims to provide a tool bit conveying and obstacle crossing mechanism used for a submarine pipeline cutting device. The tool bit conveying and obstacle crossing mechanism mainly comprisesa transmission shaft, a transmission gear, a cutting conveying arm, a guide shaft, a suspension mechanism, an elastic compression mechanism, an obstacle crossing wheel and a cutting nozzle. Accordingto the tool bit conveying and obstacle crossing mechanism used for the submarine pipeline cutting device, the transmission gear is meshed with a rack on the cutting conveying arm to complete the movement of the cutting conveying arm; the cutting nozzle is mounted on the elastic compression mechanism, so that the cutting nozzle moves along with the elastic compression mechanism, and it is guaranteed that the cutting process is stably carried out when the obstacle crossing wheel crosses a obstacle; and the mechanism has the characteristics of simple principle, simple structure and convenience in operation.
Description
technical field [0001] The invention relates to the field of marine engineering, in particular to the dismantling and cutting operation of submarine pipelines, in particular to a cutter head conveying obstacle-crossing mechanism for a submarine pipeline cutting device. Background technique [0002] my country has built a large number of fixed platforms in the offshore, and the fixed platforms transport the extracted oil to land through submarine pipelines. After decades of mining, some submarine pipelines have been abandoned due to the expiration of their service life and the loss of use value of some submarine pipelines. These abandoned submarine pipelines have caused serious safety hazards to the oil and gas exploration and development, marine environment and fishery production in the area. [0003] Due to the crude oil residue in the abandoned pipeline, when the abandoned submarine pipeline is damaged by the marine environment such as ocean corrosion or ocean current ero...
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IPC IPC(8): B23D79/00
CPCB23D79/00
Inventor 魏羲崔希君崔青马坤张爱恩张士华张磊尹慧敏侯婷李晓任红伟张红胜邬可谊李杨颍
Owner 中石化石油工程技术服务有限公司