Bolt pre-tightening tool for submarine hoop connector
A technology of connectors and bolts, which is applied in the field of emergency repair equipment for oil and gas submarine pipelines. It can solve the problems of time-consuming connection, inability to pre-tighten bolts of clamp-type connectors, and complicated operation process, so as to achieve uniform sealing force and reduce underwater assistance. Connection time, effect of quick preload
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[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0033] refer to Figure 1~Figure 3 , a bolt pre-tightening tool for a subsea clamp connector, which is composed of a shell system 1 , a reduction system 2 , a transmission system 3 and a tightening system 4 . A deceleration system 2 is installed inside the housing. The deceleration system 2 is connected to the upper end of the transmission system 3 through the cross shaft 32 . The lower end of the transmission system 3 is connected to the tightening system 4 through the cross shaft 32 . Its working principle is: the rotation of the hydraulic motor 21 drives the pinion 22 to rotate, and the pinion 22 transmits the motion to the transmission gear 24 after being decelerated by the reduction gear 23, and the transmission gear 24 transmits the rotation motion to the transmission shaft 31, and the transmission shaft 31 then transmits the motion to the transmission ...
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