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Underwater side-scan sonar collecting and releasing device arranged under boat bow deck

A side-scan sonar, retractable device technology, which is applied to measurement devices, ships, navigation aid arrangements, etc., can solve the problems of unsatisfactory acoustic imaging quality, poor rigidity, and long retractable and retractable rods, and achieves good rigidity and ease of use. Convenient, safe and fast retractable effect

Inactive Publication Date: 2010-08-25
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sonar installed at the stern is affected by the disturbance of the hull itself, so the imaging quality of its acoustic image is not ideal
The length of the sonar installed on the side is required to be higher than the height of the ship, the retractable rod is longer, the rigidity is poor, and the imaging quality of the acoustic image is not ideal

Method used

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  • Underwater side-scan sonar collecting and releasing device arranged under boat bow deck
  • Underwater side-scan sonar collecting and releasing device arranged under boat bow deck
  • Underwater side-scan sonar collecting and releasing device arranged under boat bow deck

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment one: see figure 1 and figure 2 , the underwater side-scanning sonar retractable device installed under the bow deck, including the bow storage tank 9, sonar 1, encoder 15, is characterized in that the sonar 1 is installed in a swing retractable mechanism Above, the swing retractable mechanism is installed in the bow storage groove 9, and the swing of the swing retractable mechanism enables the sonar 1 to be stored in the bow storage groove 9 or placed in the bow storage groove 9. In the down position: the encoder 15 is installed in the rod end frame 18 of the swing retractable mechanism, connected with the rotating shaft 13 through a coupling 16, and feeds back the retractable angle of the sonar 1 .

Embodiment 2

[0026] Embodiment 2: This embodiment is the same as Embodiment 1, and the special features are as follows: the structure of the swing retractable mechanism is: one end of a retractable rod 2 is fixedly installed with the sonar 1, and the other end is connected with a rotating shaft 13 is fixed, the two ends of the rotating shaft 13 are supported on the hull steel plates 11 on both sides of the bow receiving groove 9 through flange bearings 14, a large sprocket 3 is fixedly installed on the rotating shaft 13, and a motor 8 is fixedly installed On the hull steel plate 11, the motor 8 drives a small sprocket 5 through a gear reducer 7 and a worm gear reducer 6, and the small sprocket 5 drives the large sprocket 3 through a stainless steel chain.

[0027] The fixed connection structure between one end of the retractable rod 2 and the rotating shaft 13 is: the end of the retractable rod 2 is fixedly connected to a rod end frame 18, and the rotating shaft 13 is a short shaft separate...

Embodiment 3

[0031] Embodiment 3: The underwater side-scanning sonar 1 is installed on the bow of the boat, and its working position is perpendicular to the bottom of the boat and in the same plane as the bottom of the boat. like figure 1 shown. When receiving, the sonar is placed in the receiving groove 9. When the sonar is in this position, the top cover can be closed to protect the sonar. The retractable rod 2 adopts a two-stage hollow method to reduce dead weight and improve rigidity. Sonar is installed on retractable rod 2 one ends. Retractable rod 2 other ends install rotating shaft 13, and rotating shaft is fixed with hull by flange bearing 14. When the sonar is ready to work from the storage position, the sonar is rotated to the bow working position perpendicular to the bottom of the ship through the motor 8, the gear reducer 7, the worm gear reducer 6, the small sprocket 5, the stainless steel chain, and the large sprocket 3 . When the working position is reached, the positi...

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Abstract

The invention relates to an underwater side-scan sonar collecting and releasing device arranged under a boat bow deck. The device is characterized in that the boat bow is provided with a slot so as to be convenient for arranging the sonar on the boat bow, the slot can also be used for collecting an underwater sonar, and after the sonar is collected, the sonar can be covered; the sonar is arranged on a collecting and releasing rod, and the collecting and releasing rod is driven through a transmission device comprising an electromotor, a speed reducer, a stainless steel chain, and the like to rotate so as to send the sonar into water; after the sonar reaches a boat bow working position vertical to the bottom of the boat, an electrical push rod pushes a positioning pin to insert into a positioning hole so as to improve the rigidity of the sonar collecting and releasing rod; and the rotation angle of collecting and releasing the sonar is measured by an encoder connected to a rotation shaft. The imaging quality of the sonar arranging device is high, and the device can realize the quick collection and release of the underwater sonar; after the sonar is placed, the positioning pin is inserted, which can effectively guarantee the working precision of the sonar; the sonar can be guaranteed to be correctly collected and released through the encoder; and by integrating the three points, the detection precision of the sonar can be effectively and greatly improved, and the device is convenient to use.

Description

technical field [0001] The invention relates to an underwater side-scanning sonar installed under the bow deck of a boat. The sonar can be quickly retracted and deployed through its swing retractable mechanism, and an encoder is used to detect the rotation angle. Background technique [0002] The installation position and method of the underwater side-scan sonar should enable the sonar to obtain a higher-quality sound image when it is working, and reduce the displacement, deformation and noise problems in the system mapping. The retraction and deployment of the sonar should be able to realize the rapid retraction and deployment of the sonar and be able to protect the sonar. [0003] Therefore, it has the following requirements for its installation location and method and its retractable device: [0004] ①The underwater side-scan sonar works at its installation position, and its sonar sound image can have high correctness and accuracy. [0005] ②When the sonar is not workin...

Claims

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Application Information

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IPC IPC(8): B63B49/00G01S15/89
Inventor 徐解民乐兆山陆林海欧阳航空谢少荣李磊
Owner SHANGHAI UNIV
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