Automatic folding and unfolding device for marine foresight sonar and working method of automatic folding and unfolding device

Abstract

The invention discloses an automatic folding and unfolding device for a marine foresight sonar and a working method thereof, and the device comprises a vertical telescoping mechanism which is installed on a ship body; the end part of a telescopic shaft of the vertical telescopic mechanism is connected with a forward-looking sonar assembly, and the forward-looking sonar assembly comprises a mounting frame which is connected with the telescopic shaft of the vertical telescopic mechanism; the foresight sonar is fixedly connected with the mounting frame; the upper end of the shape-preserving cover connecting plate is connected with the mounting frame, the lower end of the shape-preserving cover connecting plate is connected with a shape-preserving cover, and the forward-looking sonar is contained in the shape-preserving cover; the sonar assembly can extend out of the bottom of the ship body or retract into the ship body under driving of the vertical telescopic mechanism, when the front-view sonar assembly retracts into the ship body, the shape-preserving cover can be consistent with the bottom face of the ship body, the shape-preserving function of the bottom face of the ship body is achieved, and navigation resistance is reduced.

Description

Technical Field

[0001] The invention relates to an automatic retracting and releasing device for a forward-looking sonar for a ship and a working method thereof. Background Art

[0002] When unmanned / manned ships or boats are sailing at high speed, the forward-looking sonar needs to be recovered into the hull. When sailing at low speed, the sonar needs to be lowered from the hull to work normally. This not only helps to reduce resistance during navigation, but also helps to protect the expensive sonar equipment.

[0003] On the other hand, even if the sonar is manually retracted and deployed by manned ships or boats, there are still problems such as frequent repetitive operations and low efficiency. For unmanned ships or boats, only automatic sonar retraction and deployment devices can be used. Summary of the invention

[0004] The present invention relates to an automatic retractable device for forward-looking sonar for ships and a working method thereof, which can realize that the forward-looking sonar of an unmanned / manned ship or boat can be automatically retracted into the hull when not in use, and can be automatically extended for operation when in use, thereby realizing the automatic retractable device for forward-looking sonar.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical means: A forward-looking sonar automatic retracting and deploying device for a ship, comprising: A vertical telescopic mechanism, mounted on the hull; The end of the telescopic shaft of the vertical telescopic mechanism is connected to a forward-looking sonar assembly, and the forward-looking sonar assembly includes: A mounting frame connected to the telescopic shaft of the vertical telescopic mechanism; A forward-looking sonar fixedly connected to the mounting frame; A conformal cover connecting plate, the upper end of which is connected to the mounting frame, and the lower end of which is connected to a conformal cover, and the forward-looking sonar is accommodated in the conformal cover; The sonar assembly can be extended out from the bottom of the hull or retracted into the hull under the drive of the vertical telescopic mechanism. When the forward-looking sonar assembly is retracted into the hull, the conformal cover can be consistent with the bottom surface of the hull, thereby achieving the conformal function of the bottom surface of the unmanned / manned ship or boat and reducing navigation resistance.

[0006] The mounting frame comprises: A telescopic rod connecting plate is fixed with an adjustment positioning plate, the adjustment positioning plate is connected to the pitch adjustment plate, the pitch adjustment plate is fixed on the sonar connecting plate, and the bottom of the sonar connecting plate is connected to the forward-looking sonar.

[0007] The pitch adjustment plate is provided with an arc-shaped adjustment slot, and the pitch angle of the forward-looking sonar can be manually adjusted by manually adjusting the connection position between the adjustment positioning plate and the pitch adjustment plate.

[0008] The vertical telescopic mechanism is a ball screw transmission mechanism, including a vertically arranged screw and a nut moving pair installed on the screw, a telescopic rod is coaxially fixedly sleeved on the outside of the nut moving pair, and the bottom end of the telescopic rod is fixedly connected to the telescopic rod connecting plate.

[0009] It also includes an outer cylinder, which is fixedly connected to a pre-buried flange embedded in the hull by using an outer cylinder flange, the outer cylinder is coaxially sleeved on the outside of the telescopic rod, and the inner wall of the outer cylinder is connected to the telescopic rod by a vertical linear slide rail pair; An upper flange is fixed on the upper part of the outer cylinder, and the upper flange is fixedly connected to the gear box body.

[0010] The vertical linear slide pair comprises: The guide rail mounting seat is fixed on the inner wall of the outer cylinder, the sliding guide rail is installed on the guide rail mounting seat, and the guide rail slider is fixed on the telescopic rod. The sliding guide rail and the guide rail slider constitute a linear sliding mechanism. The bottom outer wall of the telescopic rod is provided with a telescopic rod sliding groove, and the bottom of the guide rail mounting seat is fixedly provided with a stop slider, which can support sliding in the telescopic rod sliding groove and limit the guide rail slider from sliding out of the outer cylinder from the lower end of the outer cylinder.

[0011] A first fixing point is provided on the outer wall of the telescopic rod, and a second fixing point is provided on the inner wall of the outer cylinder; A fixed pulley assembly, fixedly arranged on the outer wall of the telescopic rod; One end of the sonar harness of the forward-looking sonar is connected to the forward-looking sonar, and the other end passes through the telescopic rod connecting plate and the bottom sealing plate of the outer cylinder in sequence and then enters the interior of the outer cylinder. The sonar harness is first fixed to the outer wall of the telescopic rod at a first fixed point, then passes around the pulley assembly and is fixed to the inner wall of the outer cylinder at a second fixed point, and finally is connected to the watertight connector on the gear box.

[0012] A conformal cover protection net is provided on the conformal cover in front of the forward-looking sonar; An outer cylinder protection net is arranged between the bottom of the outer cylinder and the telescopic rod.

[0013] A displacement sensor is arranged in the cavity between the inner wall of the outer cylinder and the outer wall of the telescopic rod, and the displacement sensor is used to detect the deployment stroke of the forward-looking sonar.

[0014] The present invention further discloses a retracting and deploying method based on the automatic retracting and deploying device for forward-looking sonar for ships. When the forward-looking sonar needs to be deployed during low-speed navigation, the vertical telescopic mechanism extends downward so that the forward-looking sonar extends out of the cabin. When the forward-looking sonar descends to a required distance, the descent stops and the forward-looking sonar starts to work. When the forward-looking sonar needs to be recovered, the vertical telescopic mechanism is shortened upward, driving the forward-looking sonar to be recovered into the cabin of the hull. At this time, the conformal cover is consistent with the bottom of the hull; During the entire deployment and recovery process, the sonar harness moves around the pulley assembly inside the outer cylinder as the screw descends and rises.

[0015] Beneficial effects: First, the sonar assembly of the present invention can extend out of the bottom of the hull or be retracted into the hull driven by the vertical telescopic mechanism. When the forward-looking sonar assembly is retracted into the hull, the conformal cover can be consistent with the bottom surface of the hull, thereby realizing the conformal function of the bottom surface of the unmanned / manned ship or boat and reducing navigation resistance.

[0016] Second, the forward-looking sonar of the present invention can adjust the pitch angle by adjusting the positioning plate and the pitch adjustment plate, thereby changing the detection range and area.

[0017] Third, one end of the sonar harness of the forward-looking sonar described in the present invention is connected to the forward-looking sonar, and the other end passes through the telescopic rod connecting plate and the bottom of the outer cylinder in sequence and then enters the interior of the outer cylinder. The sonar harness is first fixed to the outer wall of the telescopic rod at a first fixed point, then bypasses the pulley assembly and is fixed to the inner wall of the outer cylinder at a second fixed point, and finally is connected to the watertight connector on the gear box. Based on the above structure, during the entire deployment and recovery process, the sonar harness bypasses the pulley assembly and moves inside the outer cylinder as the lead screw descends and rises. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of a sonar automatic retracting and releasing device and a working method thereof of the present invention; Figure 2 for Figure 1 AA sectional view of FIG. Figure 3 Figure 1 A side view structural schematic diagram of; Figure 4 for Figure 3 A schematic diagram of a top view structure; Figure 5 for Figure 4 A CC-direction cross-sectional schematic diagram; Figure 6 It is a schematic diagram of the top view of the internal structure of the outer cylinder; Figure 7 It is a schematic diagram of the main structure of the telescopic rod; Figure 8 It is a schematic diagram of the telescopic rod structure from a top view; Fig. 9 It is a schematic cross-sectional view of the telescopic rod along the AA direction.

[0019] 1. Reducer; 2. Motor; 3. Outer cylinder flange; 4. Embedded flange; 5. Sealing filler; 6. Outer cylinder; 7. Telescopic rod; 8. Telescopic rod connecting plate; 9. Conformal cover connecting plate; 10. Conformal cover; 11. Forward-looking sonar; 12. Sonar connecting plate; 13. Pitch adjustment plate; 14. Adjustment positioning plate; 15. Upper flange; 16. Gearbox; 17. Conformal cover protection net; 18. Sonar harness; 19. Outer cylinder protection net; 20. Lead screw; 21. Guide rail mounting seat; 22. Bearing; 23. Gearbox upper cover; 24. Lead screw bevel gear; 25. Guide rail slider; 26. Sliding guide rail; 27. Stop slider; 28. Pulley assembly; 29. ​​Reducer bevel gear; 18-1. First fixed point; 18-2. Second fixed point; 7-1. Pulley mounting plate; 7-2. Nut moving pair; 7-3. Telescopic rod sliding groove. DETAILED DESCRIPTION

[0020] The following is a further detailed description of an automatic sonar retracting and releasing device and a working method thereof according to the present invention in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1-9 As shown, the present invention relates to an automatic sonar retracting and deploying device and a working method thereof, which can realize that the forward-looking sonar of an unmanned / manned ship or boat can be automatically retracted into the hull when not in use, and can be automatically extended to work when in use, thereby realizing the automatic retraction and deployment of the forward-looking sonar.

[0022] An automatic sonar retracting and releasing device and a working method thereof of the present invention require a flange 4 to be embedded in an unmanned / manned ship or boat, and an outer cylinder flange 3 is used to be fixedly connected with the embedded flange 4 embedded in the unmanned / manned ship or boat. A sealing filler 5 is arranged between the outer cylinder flange 3 and the embedded flange 4 to realize the sealed installation of the entire set of automatic sonar retracting and releasing device and the unmanned / manned ship or boat.

[0023] Furthermore, the outer cylinder flange 3 is welded to the outer cylinder 6 at a set distance.

[0024] The inner part of the outer cylinder 6 is as follows Figure 2 The welded positioning guide rail mounting seat 21 is shown, a sliding guide rail 26 is installed on the guide rail mounting seat 21, and a guide rail slider 25 is fixed on the telescopic rod 7. The sliding guide rail 26 and the guide rail slider 25 constitute a linear sliding mechanism, so that the telescopic rod 7 can slide linearly inside the outer cylinder 6. At the same time, a stop slider 27 is provided at the bottom of the guide rail mounting seat 21. The stop slider 27 can slide in the telescopic rod sliding groove 7-3 and restricts the guide rail slider 25 from sliding out of the outer cylinder 6 from the lower end of the outer cylinder 6.

[0025] The upper part of the telescopic rod 7 is provided with a nut moving pair 7 - 2 which can form a rotating mechanism with the lead screw 20 , and the telescopic rod 7 can slide up and down in the outer cylinder 6 through the rotation of the lead screw 20 .

[0026] The nut moving pair 7-2 can be manufactured separately from the telescopic rod 7 and then fixedly connected.

[0027] An upper flange 15 is welded to the upper portion of the outer cylinder 6 , and the upper flange 15 is fixedly connected to the gear box body 16 .

[0028] A sealing groove is arranged on the end face of the upper flange 15, and a sealing groove is arranged in the connecting hole between the gear box body 16 and the lead screw 20. Axial sealing and radial sealing are achieved by using sealing rings (not shown). At the same time, a watertight connector mounting hole for the sonar harness 18 is opened on the gear box body 16, and sealing is achieved by using a watertight connector, thereby realizing self-sealing of the entire sonar automatic retracting and releasing device.

[0029] In order to make the screw rotate more smoothly, the gear box 16 can be equipped with a bearing 22, and a screw bevel gear 24 can be fixedly connected to the screw 20. The screw bevel gear 24 and the reducer bevel gear 29 form a gear pair to achieve the rotation reversing function of the motor 2 and the reducer 1 assembly.

[0030] To further facilitate the installation and backlash adjustment of the bevel gear pair, the reducer 1 mounting plate can be manufactured separately from the gear box body 16 and then fixed as a whole to form a gear box. A gear box cover 23 is provided on the gear box to facilitate grease addition and maintenance.

[0031] The lower end of the telescopic rod 7 is bolted to the telescopic rod connecting plate 8, and an adjustment positioning plate 14 is welded and fixed to the telescopic rod connecting plate 8. The adjustment positioning plate 14 is bolted to the pitch adjustment plate 13, and the pitch adjustment plate 13 is welded to the sonar connecting plate 12. The sonar connecting plate 12 is connected to the forward-looking sonar 11 by bolts.

[0032] The pitch adjustment plate 13 is provided with an arc-shaped adjustment slot, and the pitch angle of the forward-looking sonar 11 can be manually adjusted by manually adjusting the bolt connection position between the adjustment positioning plate 14 and the pitch adjustment plate 13 .

[0033] Both ends of the telescopic rod connecting plate 8 are fixedly connected to the conformal cover connecting plate 9. The conformal cover 10 is configured according to the installed unmanned / manned ship or boat. The conformal cover 10 accommodates the forward-looking sonar 11. When the sonar automatic retracting and releasing device is retracted, the conformal cover 10 can be consistent with the bottom surface of the unmanned / manned ship or boat, thereby realizing the conformal function of the bottom surface of the unmanned / manned ship or boat and reducing navigation resistance.

[0034] like Figure 5 and Figure 6 As shown, when the sonar harness 18 of the forward-looking sonar 11 is installed, it passes through the hole opened on the telescopic rod connecting plate 8 and then enters the interior of the outer cylinder 6. The sonar harness 18 is first fixed to the outer wall of the telescopic rod 7 at the fixed point 18-1, then passes around the pulley assembly 28 and is fixed to the inner wall of the outer cylinder 6 at the fixed point 18-2, and is finally connected to the watertight connector on the gear box body 16.

[0035] Furthermore, a conformal cover protection net 17 and an outer cylinder protection net 19 can be added without affecting the passing of the wire harness.

[0036] Further information can be found in Figure 6 A displacement sensor is arranged in the cavity to detect the deployment stroke of the sonar.

[0037] The working principle of the automatic sonar retracting and releasing device of the present invention is as follows: When an unmanned / manned ship or boat needs to deploy a forward-looking sonar while sailing at a low speed, the motor 2 drives the reducer 1 to rotate, and then transmits the rotational motion to the screw 20 through the reducer bevel gear 29 and the screw bevel gear 24. The rotation of the screw 20 causes the telescopic rod 7 to descend along the sliding guide rail 26 inside the outer cylinder 6. The displacement sensor is used to detect the descending stroke of the telescopic rod 7. As the telescopic rod 7 continues to descend, the forward-looking sonar 11 connected to the telescopic rod 7 extends out of the cabin. When the forward-looking sonar 11 descends to the required distance, it stops descending and starts working.

[0038] When the forward-looking sonar 11 needs to be recovered, the motor moves in the opposite direction, causing the lead screw to move upward, and finally the forward-looking sonar 11 is parked in the cabin, with the conformal cover aligned with the bottom of the unmanned / manned ship or boat.

[0039] During the entire deployment and recovery process, the sonar harness 18 moves along the pulley assembly 28 as the lead screw 20 descends and rises inside the outer cylinder 6.

[0040] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An automatic retractable device for forward-looking sonar for ships, characterized in that: include: A vertical telescopic mechanism, mounted on the hull; The end of the telescopic shaft of the vertical telescopic mechanism is connected to a forward-looking sonar assembly, and the forward-looking sonar assembly includes: A mounting frame connected to the telescopic shaft of the vertical telescopic mechanism; A forward-looking sonar fixedly connected to the mounting frame; A conformal cover connecting plate, the upper end of which is connected to the mounting frame, and the lower end of which is connected to a conformal cover, and the forward-looking sonar is accommodated in the conformal cover; The sonar assembly can be extended out from the bottom of the hull or retracted into the hull under the drive of the vertical telescopic mechanism. When the front-view sonar assembly is retracted into the interior of the hull, the conformal cover (10) can be aligned with the bottom surface of the hull, thereby achieving the conformal function of the bottom surface of the hull and reducing navigation resistance.

2. The automatic retractable device for forward-looking sonar for ships according to claim 1, characterized in that: The mounting frame comprises: A telescopic rod connecting plate (8) is fixed with an adjustment positioning plate (14), the adjustment positioning plate (14) is connected to the pitch adjustment plate (13), the pitch adjustment plate (13) is fixed to the sonar connecting plate (12), and the bottom of the sonar connecting plate (12) is connected to the forward-looking sonar (11).

3. The automatic retractable device for forward-looking sonar for ships according to claim 2, characterized in that: The pitch adjustment plate (13) is provided with an arc-shaped adjustment slot, and the pitch angle of the forward-looking sonar (11) can be manually adjusted by manually adjusting the connection position between the adjustment positioning plate (14) and the pitch adjustment plate (13).

4. The automatic retractable device for forward-looking sonar for ships according to claim 2, characterized in that: The vertical telescopic mechanism is a ball screw transmission mechanism, comprising a vertically arranged screw and a nut moving pair mounted on the screw, wherein a telescopic rod (7) is coaxially fixedly sleeved on the outside of the nut moving pair, and the bottom end of the telescopic rod (7) is fixedly connected to the telescopic rod connecting plate (8).

5. The automatic retractable device for forward-looking sonar for ships according to claim 4, characterized in that: It also includes an outer cylinder (6), which is fixedly connected to a pre-buried flange (4) pre-buried in the hull by means of an outer cylinder flange (3), the outer cylinder (6) being coaxially sleeved on the outside of the telescopic rod (7), and the inner wall of the outer cylinder and the telescopic rod (7) being connected via a vertical linear slide rail pair; An upper flange (15) is fixed to the upper portion of the outer cylinder (6), and the upper flange (15) is fixedly connected to the gear box body (16).

6. The automatic retractable device for forward-looking sonar for ships according to claim 5, characterized in that: The vertical linear slide pair comprises: A guide rail mounting seat (21) is fixed on the inner wall of the outer cylinder (6), a sliding guide rail (26) is mounted on the guide rail mounting seat (21), and a guide rail slider (25) is fixed on the telescopic rod (7), wherein the sliding guide rail (26) and the guide rail slider (25) form a linear sliding mechanism. The bottom outer wall of the telescopic rod (7) is provided with a telescopic rod sliding groove (7-3), and the bottom of the guide rail mounting seat (21) is fixedly provided with a stop slider (27), which can support and slide in the telescopic rod sliding groove (7-3) and limit the guide rail slider (25) from sliding out of the outer cylinder (6) from the lower end of the outer cylinder (6).

7. The automatic retractable device for forward-looking sonar for ships according to claim 5, characterized in that: A first fixing point (18-1) is provided on the outer wall of the telescopic rod (7), and a second fixing point (18-2) is provided on the inner wall of the outer cylinder (6); A fixed pulley assembly, fixedly arranged on the outer wall of the telescopic rod (7); One end of the sonar harness (18) of the forward-looking sonar (11) is connected to the forward-looking sonar (11), and the other end passes through the telescopic rod connecting plate (8) and the bottom sealing plate of the outer cylinder in sequence and then enters the interior of the outer cylinder. The sonar harness (18) is first fixed to the outer wall of the telescopic rod (7) at a first fixing point (18-1), then passes around the pulley assembly (28) and is fixed to the inner wall of the outer cylinder (6) at a second fixing point (18-2), and finally is connected to the watertight connector on the gear box (16).

8. The automatic retractable device for forward-looking sonar for ships according to claim 5, characterized in that: A conformal cover protection net (17) is provided on the conformal cover in front of the forward-looking sonar; An outer cylinder protection net (19) is provided between the bottom of the outer cylinder (6) and the telescopic rod (7).

9. The automatic retractable device for forward-looking sonar for ships according to claim 1, characterized in that: A displacement sensor is arranged in the cavity between the inner wall of the outer cylinder and the outer wall of the telescopic rod (7), and the displacement sensor is used to detect the deployment stroke of the forward-looking sonar.

10. A method for retracting and deploying the automatic retracting and deploying device for forward-looking sonar for ships according to any one of claims 7 to 9, characterized in that: When the forward-looking sonar needs to be deployed when the ship is sailing at a low speed, the vertical telescopic mechanism extends downward so that the forward-looking sonar (11) extends out of the cabin, and when the forward-looking sonar (11) descends to a required distance, it stops descending and the forward-looking sonar (11) starts to work; When the forward-looking sonar (11) needs to be recovered, the vertical telescopic mechanism is shortened upward, driving the forward-looking sonar (11) to be recovered into the cabin of the hull, and at this time, the conformal cover is consistent with the bottom of the hull; During the entire deployment and recovery process, the sonar harness (18) moves along the pulley assembly (28) as the lead screw (20) descends and rises inside the outer cylinder (6).

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