Percussion drill for deep sea vehicle rock core sampling

A technology of core sampling and impact drilling rig, which can be used in underwater drilling, earthwork drilling, extraction of undisturbed core devices, etc., and can solve problems such as weak research.

Active Publication Date: 2021-05-11
NAT DEEP SEA CENT +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In terms of deep-sea geoscience research, the world has successively carried out programs such as Deep Sea Drilling (DSDP), Ocean Drilling (ODP) and Integrated Ocean Drilling (IODP), which have verified the

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  • Percussion drill for deep sea vehicle rock core sampling
  • Percussion drill for deep sea vehicle rock core sampling

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Embodiment Construction

[0024] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways than those described here, and those skilled in the art can make similar extensions without departing from the connotation of the present invention. Accordingly, the present invention is not limited to the specific embodiments disclosed below.

[0026] Such as figure 1 As shown, the percussion drilling rig for deep-sea carrier rock core sampling of the present invention includes a power rotary unit, a vibration generating unit and an impact unit, the vibration generating unit is located between the power rotary unit and the impact...

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Abstract

The invention relates to deep sea geology rock core sampling, in particular to a percussion drill for deep sea vehicle rock core sampling. The percussion drill comprises a power rotation unit and an impact unit, and further comprises a vibration generation unit located between the power rotation unit and the impact unit; and the power rotation unit comprises a rear sealing cover, a pressure-resistant shell, a brushless direct current motor, a speed reducer, a front sealing cover, a transmission shaft and a deep sea oil filling compensation diaphragm, the front sealing cover and the rear sealing cover are fixed to the front end and the rear end of the pressure-resistant shell correspondingly, the rear sealing cover, the pressure-resistant shell and the front sealing cover form a closed cavity, the brushless direct current motor, the speed reducer and the transmission shaft are all arranged in the cavity, an output shaft of the brushless direct current motor is connected with the speed reducer, and the transmission shaft is connected with an output shaft of the speed reducer. Rock can be broken by means of high-frequency impact movement under low drilling pressure and low drilling power consumption, and the drilling efficiency of the drill is greatly improved.

Description

technical field [0001] The invention relates to deep-sea geological core sampling, in particular to a percussion drilling machine for deep-sea carrier core sampling. Background technique [0002] Obtaining rock samples is one of the important goals of deep-sea exploration missions because rocks contain a wealth of important information about geological evolution. Among the existing deep-sea sampling techniques, drilling sampling is still an effective way to obtain rock samples. In terms of deep-sea geoscience research, the world has successively carried out programs such as Deep Sea Drilling (DSDP), Ocean Drilling (ODP) and Integrated Ocean Drilling (IODP), which have verified the theory of plate tectonics. The research on the regularity and other aspects is still relatively weak, and it is urgent to obtain samples from typical areas to carry out fine confirmatory drilling research. [0003] At present, a large number of research and application development of carrier core...

Claims

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Application Information

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IPC IPC(8): E21B25/18E21B7/12
CPCE21B25/18E21B7/12
Inventor 任玉刚杨磊鲁德泉于凯本刘延俊张建华
Owner NAT DEEP SEA CENT
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