Hydraulic driven vibration exciter for underwater exploratory surveying

Abstract

The utility model relates to a hydraulic driven vibration exciter for underwater exploratory surveying, which aims to solve the problems that most of the existing underwater exploratory surveying tools adopt inertia vibration exciters or electromagnetic vibration exciters which are high in cost and complicated to operate. The hydraulic driven vibration exciter includes a hoisting cap, a water intake check valve core, a water intake check valve spring, a water intake check valve cap, a water intake check valve body, an upper part outer cylinder, a low pressure cavity, a middle part outer cylinder, an upper baffle plate, a flat valve core, a flat valve body, a piston cylinder, a bottom part outer cylinder, a piston, a lower end cover, a water discharge check valve, a secondary piston cylinder, a vibration exciting source upper section, a check ring, a vibration exciting source middle section, a vibration exciting source lower section, a secondary piston, a guide sleeve, a support sleeve, a lower baffle plate, an intermediate rod, a flat valve core spring seat, a flat valve core spring, a flat valve core spring cap, an upper valve rod, a water intake check valve core, an upper top cover. The hydraulic driven vibration exciter directly driven by the pressure of deep water is convenient to obtain energy, and has high performance price ratio and wide application range.

Description

technical field [0001] The invention belongs to the technical field of marine machinery and relates to a hydraulically driven vibrator for underwater geological survey. Background technique [0002] The formation of deep-sea earthquakes and tsunamis poses a serious threat to the lives and property of people in coastal countries and regions. Countries around the world are actively conducting research and project development to reduce or even avoid disasters caused by earthquakes and tsunamis. The geological structure and prediction of earthquakes are of great significance, and the deep seabed is rich in mineral resources and luxuriant in biological resources. Geological surveys provide scientific data for the prevention of earthquake and tsunami disasters and the development of seabed minerals and biological resources. The exciters used in underwater geological investigation and survey tools are driven by deep-water motors or AC and DC. Deep-water motors (CN 101540535) can ge...

AI Technical Summary

Problems solved by technology

The exciters used in underwater geological investigation and survey tools are driven by deep-water motors or AC and DC. Deep-water motors (CN 101540535) can generally drive various inertial exciters; AC and DC can drive various electromagnetic exciters. (CN201893112U), both require offshore mother ships or ROVs to provide energy, which is expensive, difficult to operate, and has huge losses and high costs during energy transmission

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