Hook type quick dismounting and mounting inner pipe assembly suitable for submarine drilling machine wire line coring drilling tool

Abstract

The invention discloses a hook type quick dismounting and mounting inner pipe assembly suitable for a submarine drilling machine wire line coring drilling tool. The hook type quick dismounting and mounting inner pipe assembly comprises an elastic clamping assembly, a single-action assembly, a hook type dismounting and mounting device and an inner pipe, wherein the elastic clamping assembly is connected with the single-action assembly; the hook type dismounting and mounting device comprises a hook connector, a compression spring, a spring guide seat, a sliding sleeve and a hook cover connector; the single-action assembly is connected with the hook connector through an inner pipe connector; the hook connector and the inner pipe connector are provided with a spring hole and a spring blind hole correspondingly; one end of the compression spring is connected with the bottom of the spring blind hole, and the other end of the compression spring is connected with the spring guide seat; the hook connector is sleeved with the sliding sleeve, and a cylindrical pin of the sliding sleeve penetrates a long straight hole in the hook connector; the spring guide seat is supported on the cylindrical pin; the hook connector is provided with two symmetric hooks; the cylindrical pin moves up and down to drive the two hooks to rotate around a hinge pair so that the hook cover connector can be captured and unhooked; and the hook cover connector is connected with the inner pipe. The hook type quick dismounting and mounting inner pipe assembly is simple in structure and fast and convenient to operate, and the requirement for quick dismounting and mounting of the inner pipe assembly can be met.

Description

technical field [0001] The invention relates to a hook-type quick disassembly and assembly inner pipe assembly suitable for a cable core drilling tool of a seabed drilling rig. Background technique [0002] With the gradual depletion of terrestrial mineral resources, marine resources will become a potential alternative energy source for future social and economic development due to their huge reserves. At present, there are mainly two forms of subsea core drilling operations, which are sampling by large drilling ships and sampling by subsea drilling rigs. Subsea drilling rig refers to a type of highly automated and modular subsea sampling equipment that is remotely controlled on the deck of a mother ship through armored cables. Compared with using large-scale drilling ships for sampling, subsea drilling rigs have the characteristics of high operating efficiency, strong concealment, and low requirements for mother ship configuration, and have broad application prospects in t...

AI Technical Summary

Problems solved by technology

In addition, due to the strict restrictions on the weight of the whole machine for each subsea drilling operation, the number of inner tube assemblies that can be carried is directly related to the weight of a single inner tube assembly, so if a single inner tube assembly is too heavy, the amount that can be carried The total number of inner pipe assemblies is reduced, which directly affects the effective coring capacity of the subsea drilling rig

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