Bearing head of underwater sonar electronic system for connecting trailing cable

Abstract

The invention relates to a bearing head of an underwater sonar electronic system for connecting a trailing cable. The trailing cable comprises the following parts from inside out: optical fibers and a cable (1), a pressure-proof sheath (3), a Kevlar layer (4) and an outer sheath (5), wherein the trailing cable is filled with oil; the bearing head comprises an upper tapered cylinder (7) and a lower oil-filled sealed cabin (10), and the tapered cylinder (7) is used for locking the Kevlar layer (4) of the trailing cable; the oil-filled sealed cabin (10) is communicated with an oil charge oil circuit (2) in the trailing cable, the optical fibers and the cable (1) go out from the oil-filled sealed cabin (10) and are welded in a watertight plug-in component on the bearing head shell (16); the bearing head shell (16) is provided with an oil nozzle (12), and the oil nozzle (12) is communicated with the oil of a underwater sonar electronic device through a pressure-proof rubber tube (14), thus the communication of the oil charge oil way (2) and external devices in the trailing cable with mixing oil charge and photoelectricity is realized.

Description

technical field [0001] The invention belongs to the technical field of deep sea detection, in particular to a bearing head for connecting a tow cable and an underwater sonar electronic system. Background technique [0002] Underwater large-depth towed sonar relies on towed cables for towed navigation. In order to improve the pressure resistance performance of the underwater large-depth sonar electronic system, the interior of the sonar array and other equipment needs to be filled with oil to balance the internal and external pressure of the sonar cavity, so that the equipment can work at various depths underwater. At the same time, it is designed to be filled with oil, which can not only balance the pressure on the inner and outer surfaces of the cable sheath, ensure that the deformation of the cable is small when the cable is at any depth, but also ensure a good shielding effect and provide oil for the sonar electronic system below. compensate. [0003] The connection bet...

AI Technical Summary

Problems solved by technology

[0008] This puts forward very strict requirements on the design of the load-bearing head of the towing cable. It is very difficult to ensure that these requirements are met at the same time.

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