Abstract: Combining the requirements of scientific researches of ocean voyages and the international seabed mining area investigations, as well as the work characteristics of “Jiao Long” manned submersibles, the work environments of the core samplers，the working conditions and technical demands were analyzed when core sampling. A small motor-driven deep seabed cobalt-rich core sampler was designed and developed, which mounted on “Jiao Long” manned submersibles and was operated by the manipulators and was driven by the deep-sea batteries and the deep-sea motors. The structural compositions and performance parameters of the core sampler were introduced，and the drilling tests were carried out.  The testing results show that the designed core sampler may meet the requirements of deep-sea applications.

Key words: “Jiao Long&rdquo, manned submersible, cobalt-rich crust, core sampler, deep-sea core sampling

摘要： 结合大洋航次开展国际海底矿区调查和科学研究的需要，以及“蛟龙号”载人潜水器的作业特点，分析了取芯器的工作环境、取芯时的工作状态及技术需求；设计研制了可搭载于“蛟龙号”载人潜水器并由机械手进行操作，由自带的深水电池、深水电机驱动，可进行深海底钴结壳取芯的小型电动取芯器；介绍了取芯器的结构组成和工作性能参数，并进行了钻进试验。试验结果表明，所设计的取芯器达到了深海应用要求。

关键词: &ldquo, 蛟龙号&rdquo, 载人潜水器, 钴结壳, 取芯器, 深海取芯