Core sampling apparatus |
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| 申请号 | US3701387D | 申请日 | 1970-11-04 | 公开(公告)号 | US3701387A | 公开(公告)日 | 1972-10-31 |
| 申请人 | GLOBAL MARINE INC; | 发明人 | KOOT NICHOLAS L; | ||||
| 摘要 | Apparatus for taking a plurality of sequential punch core samples in underwater sediments is provided. Core sampling tubes are driven into the sediments by hydraulic pressure acting through a central guide tube. The core sampling tube is withdrawn by hydraulic pressure applied through an annular space between the guide tube and a surrounding pipe. The hydraulic pressures are applied by a pair of hydraulic pumps using sea water as the fluid. A plurality of core sampling tubes are contained in a magazine and are fed to the guide tube one at a time for taking samples. The filled core tubes are returned to the magazine where they are retained and stored. First and second sets of drive cams on the magazine are operated alternately by reverse operation of the hydraulic pumps so that the containers in the magazine controllably advance only one container width at a time. | ||||||
| 权利要求 | 1. A multiple core sampling apparatus comprising: means for forcing a core sampling tube into a material to be sampled; means for withdrawing the core sampling tube from the sampled material; means for feeding a plurality of empty core sampling tubes one at a time to the means for forcing; and means for receiving and storing a plurality of filled core sampling tubes from the means for withdrawing; and wherein the means for forcing comprises means for applying hydraulic pressure in a forward direction on the core sampling tube; and the means for withdrawing comprises means for applying hydraulic pressure in the rearward direction on the core sampling tube. 2. A core sampling apparatus as defined in claim 1 wherein the means for forcing further comprises a guide tube for the core sampling tube, and means for applying hydraulic pressure within the guide tube on a rearward portion of the core sampling tube; and the means for withdrawing comprises: a pipe surrounding the guide tube and in fluid communication with the guide tube at a forward end thereof; and means for applying hydraulic pressure within the pipe for application to a core sampling tube within the guide tube. 3. A multiple core sampling apparatus as defined in claim 2 further comprising a seat within the guide tube at the forward end thereof for engagement with a seating member on a core sampling tube. 4. A core sampling apparatus as defined in claim 1 wherein the means for applying hydraulic pressure comprises a hydraulic pump and further comprising; means interconnecting the hydraulic pump and means for feeding for actuating the means for feeding upon reverse driving of the hydraulic pump. 5. A multiple core sampling apparatus comprising: means for forcing a core sampling tube into a material to be sampled; means for withdrawing the core sampling tube from the sampled material; means for feeding a plurality of empty core sampling tubes one at a time to the means for forcing; and means for receiving and storing a plurality of filled core sampling tubes from the means for withdrawing; and wherein the means for feeding comprises: a magazine with a plurality of containers for core sampling tubes; and means for intermittently advancing the magazine an interval corresponding to one container; and the means for receiving comprises means within each container for securing a filled core sampling tube therein. 6. A core sampling apparatus as defined in claim 5 further comprising a motor, and wherein forward operation of the motor actuates the means for forcing and reverse operation of the motor actuates the means for feeding. 7. A core sampling apparatus as defined in claim 5 further comprising second means for intermittently advancing the magazine a distance corresponding to one container and wherein the first anD second means for intermittently advancing are operable only alternately, operation of the first means for advancing, enabling operation of the second means for advancing, and operation of the second means for advancing, enabling the first means for advancing. 8. A core sampling apparatus as defined in claim 7 wherein the first means for advancing the magazine comprises a plurality of first drive cams for every other container; and first means for driving the first drive cams; and wherein the second means for advancing the magazine comprises a plurality of second drive cams for alternate containers in the magazine from the first drive cams, and second means for driving the second drive cams. 9. A subsea punch coring apparatus for obtaining a plurality of punch core samples in a plurality of punch core sample tubes comprising: an elongated guide tube; a pipe surrounding the guide tube for providing an annular conduit therebetween; means for pumping seawater into the guide tube for forcing a punch core sample tube within the guide tube into subsea soil; means for pumping seawater into the annular conduit between the guide tube and pipe for withdrawing a core sample tube from the subsea soil; and means for feeding an empty punch core sampling tube into the guide tube comprising: a magazine including a plurality of core sampling tube receiving stations; first means for intermittently advancing the magazine one station; and second means for intermittently advancing the magazine one station, the first and second means for advancing being operable only alternately, operation of the first means enabling operation of the second means and operation of the second means enabling operation of the first means. 10. A magazine as defined in claim 9 wherein the first means for advancing comprises a plurality of first drive cams for every other station, and means for driving the first drive cams; and wherein the second means for advancing comprises a plurality of second drive cams for alternate containers from the first drive cams, and second means for driving the second drive cams. 11. An underwater punch core sampling apparatus for obtaining a plurality of punch core samples in a plurality of punch core sample tubes comprising: an elongated guide tube; a pipe surrounding the guide tube for providing an annular conduit therebetween; means for pumping seawater into the guide tube for forcing a punch core sample tube within the guide tube into subsea soil; means for pumping seawater into the annular conduit between the guide tube and pipe for withdrawing a core sample tube from the subsea soil; and means for feeding an empty punch core sampling tube into the guide tube; and wherein the means for pumping seawater into the guide tube comprises: a first pump; a conduit connecting the first pump and the guide tube; a two-position valve having a first position closing the conduit and a second position closing the guide tube; and means for biasing the valve toward the first position. 12. An underwater punch core sampling apparatus as defined in claim 11 wherein the means for pumping water into the annular conduit comprises a second pump and a conduit interconnecting the second pump and the annular conduit, said first and second pumps being operable alternately and simultaneously. 13. An underwater punch core sampling apparatus as defined in claim 11 wherein the means for feeding comprises: a magazine with a plurality of container means for loosely accommodating an empty punch core sample tube in each container; means associated with each container for securing a filled punch core sampling tube within each container means; and means for intermittently advancing the magazine an interval corresponding to one container means; said apparatus further comprising a passage interconnecting the guide tube and a container means and wherein the means for pumping seawater for withDrawing is further for passing a filled punch core sample tube through the guide tube and connecting passage to a container means. 14. An underwater punch core sampling apparatus as defined in claim 13 wherein the means for intermittently advancing comprises: means connected to one of the means for pumping for advancing the magazine upon reverse operation of the means for pumping. punch 15. An underwater punch core sampling apparatus as defined in claim 13 wherein the means for feeding comprises: a plurality of first drive means for every other container means; a plurality of second drive means for every other container means in the magazine alternately with the first drive means; first means for engaging the first drive means for advancing the magazine a distance equivalent to one container means; means interconnecting the means for engaging and the first means for pumping only upon reverse operation of the first means for pumping; second means for engaging the second drive means for advancing the magazine a distance equivalent to one container means; and means interconnecting the means for engaging and means for pumping for operation only upon reverse operation of the means for pumping. |
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