Hydrographic survey ship measurement cable taking-up and setting-out device

Abstract

The invention discloses a hydrographic survey ship measurement cable taking-up and setting-out device, which comprises a hydrographic winch device, a deflecting pulley, a cable taking-up and setting-out crane jib and a cable tensioning device, wherein the hydrographic winch device is arranged on an orlop deck, and comprises a frequency conversion brake motor, a speed reducer and a cable drum; one end of a cable is fixedly arranged on the cable drum; the other end of the cable is led to an outer part of a ship board through the deflecting pulley arranged on a lower side of an upper deck; and the cable taking-up and setting-out crane jib is arranged on one side of the upper deck, which is close to the ship board, and comprises a vertical cradle, a horizontal hanging beam, a foundation support, a folding draw bar, a first pulley, an X-axial direction angle sensor and a horizontal hanging beam taking-up mechanism. The hydrographic survey ship measurement cable taking-up and setting-out device has a compact structure and is convenient to use, the horizontal hanging beam can be quickly set out or stored in the vertical cradle, the X-axial direction angle sensor and a hydrographic survey instrument on ends of the horizontal hanging beam can be prevented from being damaged due to storm attach after the horizontal hanging beam is stored, and the reliability in operation of the device is improved.

Description

technical field [0001] The invention relates to a cable retracting and unwinding device for a hydrological survey ship, in particular to a cable retracting and unwinding boom of the device, and belongs to the technical field of hydrological surveying. Background technique [0002] The hydrographic measurement ship sends the hydrographic measurement instrument (lead fish) suspended on the measurement cable to the designated underwater detection point for hydrological sampling through the hydrological winch and the cable retractable boom. The horizontal hanging beam under the boom of the existing hydrographic surveying ship is fixed. When the hydrographic surveying ship is sailing, the extended horizontal hanging beam cannot be retracted. This poses potential safety hazards and reduces the reliability of hydrological measurements. In the process of the hydrological measuring instrument sinking into the water, it can only be judged whether the hydrological measuring device is ...

AI Technical Summary

Problems solved by technology

The horizontal hanging beam under the boom of the existing hydrographic surveying ship is fixed. When the hydrographic surveying ship is sailing, the extended horizontal hanging beam cannot be retracted. poses safety hazards and reduces the reliability of hydrographic measurements

In the process of the hydrological measuring instrument sinking into the water, it can only be judged whether the hydrological measuring device is sinking by directly observing the tension degree of the measuring cable. Due to the observation lag, it can be seen after a period of time after the hydrological measuring device sinks. Effective monitoring of the lowering depth of hydrological measuring instruments

The hydrological measurement device is easily damaged if it continues to touch the bottom. For this reason, it is necessary to install a bottoming signal sensor at the bottom of the equipment, which requires additional underwater cables. Introduced new unreliable factors

When calculating the relative water depth, the signal compensation for the angle of entry of the measuring cable into the water is not performed, so the length of the measuring cable can only be roughly calculated, and the relative water depth position of the hydrographic measuring equipment cannot be calculated

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