Seabed hard rock multi-point pressure-maintaining coring micro drilling machine

Abstract

The invention discloses a seabed hard rock multi-point pressure-maintaining coring micro drilling machine. The seabed hard rock multi-point pressure-maintaining coring micro drilling machine comprisesa handle, a power head, a reduction gearbox, a drilling tool discarding device, a drilling tool, a pressure compensator, a rock placing rack and a rock core pressure maintaining device; a water supply joint and the power head are installed on the top plate of the reduction gearbox, the output shaft of the power head is connected with the input shaft of the reduction gearbox, a central hole is formed in the output shaft of the reduction gearbox, and the central hole communicates with a water inlet hole of the water supply joint; and a lower inner cavity is provided with a hanging clamp groove,and is connected with a drill through a discardable connecting shaft with a hanging clamp. The seabed hard rock multi-point pressure-maintaining coring micro drilling machine is simple and compact instructure, small in volume and high in reliability, and can be mechanically held by hands, and the drilling tool can be discarded in an emergency; and the safety of a submersible is ensured, and thecost of fault maintenance is lowered. The obtained rock core is stored in a pressure maintaining cylinder, and the multi-point pressure maintaining coring of the surface hard rock on the seabed can beachieved.

Description

technical field

[0001] The invention relates to a multi-point pressure-holding and core-taking micro-drilling machine for seabed hard rock. Background technique

[0002] The use of drilling and sampling equipment to drill and sample seabed solid mineral resources is the basis for analyzing the composition and grade of seabed solid mineral resources. The development of marine equipment such as "Haima" ROV has been widely used in the exploration of seabed resources, and the development of manned submersibles / ROVs supporting seabed core sampling drilling rigs has been developed to meet the needs of seabed solid mineral resources, especially manganese nodules and cobalt-rich deposits on the seabed surface. There is an urgent need for drilling of mineral resources such as crusts. Patent ZL200420036284.1 discloses a shallow-hole coring device for a deep-sea manned submersible, which is mainly composed of a hydraulic drilling power head, a drilling power head angle adjustment devi...

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