The utility model discloses a rope coring and fishing system and method for a submarine drilling rig, which comprises a winch, a fishing rope, a power head frame and a fishing tool; the fishing tool comprises a jacket, a plug cover, a mandrel, a spring and a fishing hook, both ends of the jacket are openings, the plug cover is assembled in the opening at the top end of the jacket, the middle part of the mandrel is provided with a shaft shoulder, and the bottom end is provided with a cone head which can be clipped into the fishing hook, The top end of the mandrel is extended to the outer sleeve through the plug cover, the spring is sleeved outside the mandrel, between the plug cover and the shaft shoulder, and the fishing hook is assembled at the bottom end of the shell; the power frame is provided with a through hole, the through hole diameter is between the outer diameter of the mandrel and the plug cover, the winch is assembled on the power head frame, the top end of the fishing rope is connected with the winch, and the bottom end is connected with the top end of the mandrel after passing through the through hole. The core tube can be fished, lifted and released only by controlling the winch in different states without additional manual intervention, which is convenient for remote control operation and can be well adapted to seabed coring.
【技术实现步骤摘要】
一种海底钻机绳索取芯打捞系统
本技术属于钻机绳索取芯领域,特别是涉及一种海底钻机绳索取芯打捞系统。
技术介绍
海底钻机是开展海洋地质及环境科学研究、进行海洋矿产资源勘探和海底工程地质勘察的重要技术装备。为了满足不断探索深海资源科学考察的需求,海底岩芯取样钻机钻孔深度越来越深。相对于提钻取芯,绳索取芯回收岩芯只需要绞车提升绳索附加长度所需的少量时间,无需频繁起下钻,因而可以提高取芯的效率,且钻孔深度越深,其节约时间的优势越明显。绳索打捞系统是绳索取芯的核心机构。海底钻机由于其工作的海底环境的特殊性,只能通过光电缆远程操控的方式实施作业,目前陆地上成熟的绳索打捞系统由于其结构不够紧凑且需要人工手动操作等问题,无法应用于海底钻机。
技术实现思路
本技术的目的在于针对现有技术的不足之处,提供一种结构紧凑且便于遥控操作的海底钻机绳索取芯打捞系统。本技术提供的这种海底钻机绳索取芯打捞系统,它包括绞车、打捞绳、动力头框架和打捞器;打捞器包括外套、塞盖、芯轴、弹簧和打捞钩,外套的两端均为开口,塞盖装配于外套顶端开口内 ...
【技术保护点】
1.一种海底钻机绳索取芯打捞系统,其特征在于:它包括绞车、打捞绳、动力头框架和打捞器;/n打捞器包括外套、塞盖、芯轴、弹簧和打捞钩,外套的两端均为开口,塞盖装配于外套顶端开口内,芯轴的中部设有轴肩、底端设有能够卡入打捞钩内的锥头,芯轴的顶端穿过塞盖伸至外套上,弹簧套于芯轴外、位于塞盖与轴肩之间,打捞钩装配于外壳的底端;/n动力框架上设有通孔,通孔孔径介于芯轴外径与塞盖外径之间,绞车装配于动力头框架上,打捞绳的顶端与绞车相连、底端穿过通孔后与芯轴的顶端相连。/n
【技术特征摘要】
1.一种海底钻机绳索取芯打捞系统,其特征在于:它包括绞车、打捞绳、动力头框架和打捞器;
打捞器包括外套、塞盖、芯轴、弹簧和打捞钩,外套的两端均为开口,塞盖装配于外套顶端开口内,芯轴的中部设有轴肩、底端设有能够卡入打捞钩内的锥头,芯轴的顶端穿过塞盖伸至外套上,弹簧套于芯轴外、位于塞盖与轴肩之间,打捞钩装配于外壳的底端;
动力框架上设有通孔,通孔孔径介于芯轴外径与塞盖外径之间,绞车装配于动力头框架上,打捞绳的顶端与绞车相连、底端穿过通孔后与芯轴的顶端相连。
2.如权利要求1所述的海底钻机绳索取芯打捞系统,其特征在于:所述外套为圆柱型整体套,包括小径段、圆锥段和大径段,圆锥段和大径段上设有一对对称布置的开口,大径段的外壁上设有一对同轴布置的定位孔,两定位孔的中心轴与开口垂直;所述塞盖可拆卸连接于小径段的顶端。
3.如权利要求2所述的海底钻机绳索取芯打捞系统,其特征在于:所述打捞钩包括定位销和一对钩体;钩体的中部设有安装孔,钩体的两端设有关于...
【专利技术属性】
技术研发人员:王荣耀,臧龙,高宇清,宋其新,张伟,左立标,
申请(专利权)人:长沙矿山研究院有限责任公司,
类型:新型
国别省市:湖南;43
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