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An electrical insulation connection device for the tail shaft of an underwater vehicle

An underwater vehicle and connecting device technology, applied in the direction of conductive connection, connection, connection insulation, etc., can solve the problem of inability to completely cut off the electric field transmission of flange connection bolts, and achieve the improvement of the stealth performance of the underwater electric field, the improvement of combat performance and the Battlefield survivability, the effect of reducing the probability of underwater detection

Active Publication Date: 2020-05-19
NAVAL UNIV OF ENG PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in order to achieve the purpose of cutting off the electric field of the stern shaft, the existing measures at home and abroad are mainly to add an insulating cushion between the connecting flanges of the two shaft sections to increase the resistance of the stern shaft, but it cannot completely cut off the electric field at the flange connecting bolts transfer

Method used

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  • An electrical insulation connection device for the tail shaft of an underwater vehicle
  • An electrical insulation connection device for the tail shaft of an underwater vehicle
  • An electrical insulation connection device for the tail shaft of an underwater vehicle

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as Figure 1 ~ Figure 2 As shown, a kind of underwater vehicle tail shaft 1b electrical insulation connection device of the present invention includes a tail connection section 1, a head connection section 2, a protective sleeve 3, a connecting flat key 4, a head insulation layer 5, and a circumferential insulation layer 6. The tail insulation layer 7 and the key insulation layer 8; the head and tail connection sections 1 are used to directly connect with the front and rear sections of the shafting, so as to ensure that the torque and axial force of the front section can be transmitted to the rear section, according to actual design requirements , the strength of the connecting section and various parameters have corresponding requirements, and the production materials are selected according to the requirements of various parameters. Generally, it is made of high-hardness metal steel and other materials.

[0028] Such as image 3 As shown, the tail connecting sect...

Embodiment 2

[0044] The difference from Embodiment 1 is that in this embodiment, except for the key insulation layer, other insulation layers are not made of molded glass fiber composite materials, but are formed by potting;

[0045] In this case, the entire device assembly process is completed by clamping the tooling. After the tail connection end 1, the head connection section 2 and the key insulation layer 8 are assembled according to the predetermined assembly relationship and clearance, they are integrally filled with insulating epoxy resin. The sealing process controls the thickness of the insulating layer in the range of 0.1-0.5 mm to form other insulating layers and internal insulating fillers.

[0046] The above two embodiments can be applied to different environments according to the type of insulating layer used and the actual needs. The construction and assembly process of the first embodiment is relatively simple, and the attached auxiliary equipment is relatively less; the sec...

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Abstract

The invention belongs to the technical field of underwater vehicle tail shaft connecting structures, and particularly relates to an underwater vehicle tail shaft electric insulation connecting device.The device comprises a tail connecting section, a head connecting section, a protective sleeve, a connecting flat key, a head insulating layer, a circumferential insulating layer, a tail insulating layer and a key insulating layer, torque is effectively transmitted through the polygonal matching surfaces of the two connecting sections, axial force is transmitted through the flat key connecting structure, meanwhile, the insulating layer is adopted on the matching surfaces, transmission of an electric field can be effectively isolated, and the insulating performance of the tail shaft is guaranteed. And after the composite material protective sleeve is wound outside, the flat key can be effectively fixed, and the external sealing performance of the whole structure can be ensured. And after the waterproof insulating material is encapsulated inside, the sealing property and the insulating property of the whole structure can be ensured. Screw holes formed in a flange can achieve the butt joint installation function of the device and a shaft system.

Description

technical field [0001] The invention belongs to the technical field of connecting structure of the tail shaft of an underwater vehicle, and in particular relates to an electrically insulating connection device for the tail shaft of an underwater vehicle. Background technique [0002] The stern shaft system of an underwater vehicle is the core of the power transmission system of the vehicle. On the one hand, the stern shaft system needs to be able to ensure the stable transmission of torque and axial force between the shaft systems. On the other hand, it is required to have sufficient strength and rigidity. To ensure that it maintains stable performance in extreme working environments. [0003] Due to the above requirements, the performance of the connecting device as a connecting device for connecting the front and rear end shaft mechanisms is particularly important. At the same time, based on actual engineering requirements, in order to achieve the purpose of electric field...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R4/26H01R4/70
Inventor 李华东陈国涛周振龙徐嘉启高海昌
Owner NAVAL UNIV OF ENG PLA
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