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Multi-arm parallel underwater extension mechanism for lifting sonar

A parallel, driving mechanism technology, used in the re-radiation of sound waves, aircraft parts, and utilization of re-radiation, etc., to achieve the effects of convenient energy acquisition, low power, reliable expansion and recovery

Pending Publication Date: 2021-04-16
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is: in order to reduce the structural complexity and manufacturing cost of the underwater expansion mechanism and improve the reliability of the equipment, the present invention designs a multi-arm parallel underwater expansion mechanism for lifting sonar

Method used

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  • Multi-arm parallel underwater extension mechanism for lifting sonar
  • Multi-arm parallel underwater extension mechanism for lifting sonar
  • Multi-arm parallel underwater extension mechanism for lifting sonar

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Embodiment Construction

[0034] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

[0035] The technical solution of the present invention is: including motor compartment 1, driving disc 2, circumferential roller 3, radial roller 4, active arm 5, first driven arm 6, first hydrophone mounting rod 7, second hydrophone Device...

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Abstract

The invention relates to a multi-arm parallel underwater extension mechanism for lifting sonar, which adopts direct-current torque motor driving and lead screw nut transmission to drive a double-parallelogram series extension mechanism with multiple arms connected in parallel to form a certain formation size, so that reliable extension and recovery of an array can be realized. Energy is convenient to obtain, the mechanism is simplified, power needed by expansion is small, the requirements for machining precision and assembling precision are lowered, operation is reliable, and wiring is convenient. Under the condition of the same expansion size, the folding size is reduced by 20%; the number of the parallel extension arms is increased by more than two times. By changing the structural size of the parallelogram, the height of the vertical rod and the number of the parallel arms, the required array sizes of various hydrophones can be realized, and the universality of the mechanism is improved.

Description

technical field [0001] The invention relates to the field of an underwater extended array, in particular to an extended structure of a hydrophone array for suspending sonar. Background technique [0002] The pendant sonar is a sea detection device mounted on a helicopter, on which a hydrophone array is installed. When working, the pendant sonar is hoisted into the water through the round hole on the base of the helicopter by the winch on the helicopter. Do detection work. Due to strength limitations, the diameter of the round hole of the helicopter base cannot be too large, so the diameter of the sonar is also subject to corresponding constraints. When conducting underwater detection, the hydrophone array must form a specific array size to be able to complete the detection. task, and the size of this formation is larger than the diameter of the round hole in the base of the helicopter. In order to solve this contradiction, the underwater array of the hanging sonar is desig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/88G01S7/521B64D47/00
Inventor 杜向党王英民王关峰
Owner NORTHWESTERN POLYTECHNICAL UNIV
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