Marine sonar automatic lifting control system

Abstract

The utility model relates to an ocean sonar automatic lifting control system, which comprises an electric control device, a lifting device, a bearing device and a water level sensor, the water level sensor is used for detecting the sea level water level and transmitting the detected data to the lifting device, and the lifting device drives the bearing device to axially lift to automatically adjust the position of a sonar. The lifting device is controlled through the electric control device, axial lifting of the sonar is achieved, the sea level water level change is detected in real time through the water level sensor, data are transmitted to the lifting device, the bearing device is driven to automatically adjust the position of the sonar, the sonar is kept to work at the proper depth, and therefore marine organisms are effectively repelled, and the service life of the sonar is prolonged. The nuclear power station water inlet is protected from being blocked.

Description

Technical Field

[0001] The utility model relates to the field of ocean sonar lifting, in particular to an automatic lifting control system for ocean sonar. Background Art

[0002] Nuclear power plants rely on seawater for cooling during power generation, but the water intakes are prone to becoming clogged by marine life. To address this issue, sonar systems are installed at the intakes to repel marine life. However, due to tidal fluctuations, sea levels can fluctuate by as much as 16 meters. Since marine life tends to live close to the surface, the sonar position must be constantly adjusted to accurately repel marine life.

[0003] A Chinese utility model patent, publication number CN221426872U, discloses a liftable submarine sonar detection device, comprising a mounting mechanism mounted on a ship's hull via bolts, with a drive element fixedly mounted on the mounting mechanism. The liftable submarine sonar detection device is mounted on the ship's hull via the mounting mechanism, allowing the device to move with the hull and remain submerged in the seawater, thereby reducing hindrance to navigation. The lifting mechanism allows the carrying mechanism carrying the sonar component to be raised and lowered. When the sonar component is needed, the carrying mechanism can be driven into the seawater. Simultaneously, the walking mechanism can be used to rotate the carrying mechanism to adjust the direction of the sonar component's detection, allowing adjustments to be made as needed by the detector, thereby increasing its applicability. Furthermore, the lifting mechanism prevents the sonar component from accidentally colliding with the hull, which could damage the component.

[0004] However, the sonar position in the above technology needs to be adjusted manually, and the use of a single screw to lift the sonar makes it too large and the lifting range is limited, which cannot effectively drive marine life away from nuclear power plants. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an automatic lifting control system for ocean sonar in view of the deficiencies of the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic lifting control system for ocean sonar, comprising:

[0007] An electric control device, which is used to provide power to the lifting device and the sonar;

[0008] A lifting device, wherein the lifting device drives the carrying device to move axially upward and downward;

[0009] A carrying device, the carrying device is installed at the lifting end of the lifting device, and the carrying device is provided with a sonar;

[0010] The water level sensor is used to detect the sea level and transmit the detected data to the lifting device, and the lifting device drives the carrying device to move axially up and down to automatically adjust the sonar position.

[0011] By adopting the above technical solution, the lifting device is controlled by an electronic control device to realize the axial lifting of the sonar, and the water level sensor is used to detect the changes in sea level in real time. The data is transmitted to the lifting device, driving the carrying device to automatically adjust the position of the sonar to keep the sonar working at an appropriate depth, thereby effectively driving away marine life and protecting the water inlet of the nuclear power plant from blockage.

[0012] The above-mentioned automatic lifting and controlling system of an ocean sonar can be further configured as follows: the lifting device includes a shell, a reduction motor group arranged in the shell and at least two groups of multi-stage lifting mechanisms arranged in sequence from large to small and from outside to inside according to the pipe diameter. The multi-stage lifting mechanism includes a screw, a screw transmission assembly and a multi-stage tube. Adjacent screws rotate synchronously through a synchronization mechanism. The inner side of the screw transmission assembly is threadedly connected to the screw in the corresponding multi-stage lifting mechanism, and the outer side is fixedly connected to the corresponding multi-stage tube. One of the screws is connected to the output end of the reduction motor group, and the screws are driven to rotate synchronously through the synchronization mechanism, so that the screw transmission assembly moves along the axial direction of the corresponding screw to drive the multi-stage tube to extend and retract in the shell, and the bearing device is installed on the innermost multi-stage tube.

[0013] Using the above technical solution, the lifting device includes multiple multi-stage lifting mechanisms, wherein the multi-stage lifting mechanism is composed of a screw, a screw transmission assembly and a multi-stage tube. The synchronous rotation of adjacent socketed screws is achieved through a synchronization mechanism, so that the screw transmission assembly moves along the axial direction of the screw, driving the multi-stage tube to extend and retract, thereby realizing the lifting and lowering of the sonar. This design reduces the volume and weight restrictions of a single screw, increases the lifting range of the system, and can be freely lifted and lowered in the face of tidal sea surface height changes of tens of meters. At the same time, the screw transmission assembly is fixedly connected to the multi-stage tube, which stably fixes the entire multi-stage lifting mechanism together, avoiding the risk of falling alone.

[0014] The above-mentioned automatic lifting and lowering control system of an ocean sonar can be further configured as follows: the screw transmission assembly includes a screw nut, a guide slider arranged outside the screw nut, and a bearing piston sleeve, the guide slider is fixedly connected to the corresponding multi-stage tube, the screw nut, the guide slider and the bearing piston sleeve are fixedly connected, a first tapered roller bearing is arranged in the bearing piston sleeve, the outer ring of the first tapered roller bearing is against the bearing piston sleeve, and the inner ring is against the corresponding screw.

[0015] By adopting the above technical solution, the conical surface of the first tapered roller bearing is placed along the direction from the reduction motor group to the sonar, so that the bearing capacity of the first tapered roller bearing becomes tighter as it goes downwards. The screw transmission assembly includes a screw nut, a guide slider and a bearing piston sleeve. The stability of the overall structure is improved through fixed connection, and the use of the first tapered roller bearing is used to improve the tensile strength of the system, thereby preventing the sonar from falling due to excessive tension. At the same time, the multi-stage lifting mechanism is strengthened and interacts with each other to enhance the structural strength and stability of the screw transmission assembly, thereby maximizing the overall tensile strength.

[0016] The above-mentioned automatic lifting and lowering control system of an ocean sonar can be further configured as follows: a first positioning ring is provided at one end of the bearing piston sleeve corresponding to the first tapered roller bearing, one end of the first tapered roller bearing is against the first positioning ring, and the other end fixes the first tapered roller bearing in the bearing piston sleeve through a locking nut threadedly connected to the screw rod, the first deep groove ball bearing is installed at the other end of the first positioning ring corresponding to the first tapered roller bearing, and a second positioning ring is provided at the screw rod corresponding to the first deep groove ball bearing, the outer ring of the first deep groove ball bearing is against the bearing piston sleeve, and the inner ring is against the corresponding screw rod, and the first deep groove ball bearing is fixedly installed in the bearing piston sleeve through the first positioning ring and the second positioning ring.

[0017] By adopting the above technical solution, precise control of the screw movement is achieved through the combination of the first positioning ring, the first tapered roller bearing and the first deep groove ball bearing. The use of the locking nut and the positioning ring ensures that the bearing is fixed in the bearing piston sleeve to prevent displacement under the action of tension, thereby improving the transmission efficiency, accurately controlling the movement of the sonar lifting system, and ensuring the stability of the sonar in complex marine environments.

[0018] The above-mentioned automatic lifting and lowering control system for ocean sonar can be further configured as follows: the screw nut, guide slider and bearing piston sleeve are fixedly connected by a plurality of first bolts, the end of the guide slider extends out of the outside of the corresponding multistage tube and slides against the adjacent multistage tube or the inner wall of the shell, the cross-section of the guide slider is T-shaped, and is fixedly connected to the corresponding multistage tube by a plurality of second bolts.

[0019] By adopting the above technical solution, the tight connection between the screw nut, the guide slider and the bearing piston sleeve is ensured through the fixed connection of the first bolt and the second bolt. At the same time, the T-shaped cross-section design of the guide slider increases the contact area with the multi-stage tube, improves the stability of the connection, and guides its lifting process to avoid deviation, thereby ensuring the smoothness and synchronization of the sonar lifting process.

[0020] The above-mentioned automatic lifting and lowering control system for ocean sonar can be further configured as: a coupling mechanism between the reduction motor group and the multi-stage lifting mechanism, the coupling mechanism including a coupling seat arranged in the shell and fixedly connected to the shell, and a coupling arranged in the coupling seat, one end of the coupling is connected to the output end of the reduction motor group, and the other end is connected to the innermost screw rod extending into the coupling seat.

[0021] The adoption of the above technical solution and the use of a coupling mechanism ensure that the power output by the motor can be efficiently and stably transmitted to the innermost screw, avoiding the requirement for concentricity, achieving precise lifting and lowering of the sonar, and realizing efficient power transmission between the reduction motor group and the multi-stage lifting mechanism. At the same time, the reduction motor group is changed to a directly connected coupling to improve transmission efficiency and reduce equipment area.

[0022] The above-mentioned automatic lifting and lowering control system of ocean sonar can be further configured as follows: a third positioning ring platform is provided in the coupling seat, and a second tapered roller bearing is provided at the third positioning ring platform. One end of the second tapered roller bearing is against the third positioning ring platform, and the other end is fixed to the coupling seat by a locking nut threadedly connected to the screw rod. The outer ring of the second tapered roller bearing is against the coupling seat, and the inner ring is against the corresponding screw rod. Several second deep groove ball bearings are installed on the other end of the third positioning ring platform corresponding to the second tapered roller bearing. A fourth positioning ring platform is provided at the screw rod corresponding to the second deep groove ball bearing. The outer ring of the second deep groove ball bearing is against the coupling seat, and the inner ring is against the corresponding screw rod, and the second deep groove ball bearing is fixedly installed in the coupling seat by the third positioning ring platform and the fourth positioning ring platform.

[0023] By adopting the above technical solution, the use of a second tapered roller bearing and a second deep groove ball bearing improves the tensile and torque resistance of the coupling mechanism, preventing the coupling from disengaging. The use of a locking nut and a locating ring ensures that the bearing is fixed in the coupling seat, preventing displacement under high load, and ensuring the reliability of the sonar lifting system in long-term operation.

[0024] The above-mentioned automatic lifting and lowering control system for ocean sonar can be further configured as follows: a first buffer pad is provided between adjacent screw transmission assemblies, a second buffer pad and a proximity switch are provided at the end of the coupling seat away from the reduction motor group, and the proximity switch is electrically connected to the reduction motor group.

[0025] By adopting the above technical solution, a buffer pad is set up to avoid collision during the retraction process, thereby extending the service life. The proximity switch monitors the initial state of the lifting device, gives a reminder when the lifting device is at the minimum length, provides position feedback and safety control, and improves the safety and protection measures of the sonar lifting system to prevent accidental damage.

[0026] The above-mentioned automatic lifting and lowering control system for ocean sonar can be further configured as follows: the synchronization mechanism includes a linkage block installed at one end of the screw away from the screw transmission assembly and a plurality of linkage grooves opened in adjacent corresponding screws, and linkage teeth adapted to the linkage grooves are provided on the outside of the linkage block, and the linkage block is used to synchronize the rotation of adjacent socketed screws.

[0027] By adopting the above technical solution, the synchronization mechanism realizes the synchronous rotation between adjacent screw rods through the design of linkage blocks and linkage grooves, ensuring the synchronization and stability during the sonar lifting process. The synchronization mechanism belongs to the existing technology. For details, please refer to "A multi-section electric lifting rod disclosed in CN219734901U", which will not be repeated here.

[0028] The above-mentioned automatic lifting and controlling system of an ocean sonar can be further configured as follows: the carrying device includes a quick-connect buckle installed at the lifting end of the lifting device and a hanging basket detachably connected to the quick-connect buckle, the sonar is installed in the hanging basket, and the electronic control device includes an electronic control box and an automatic winding machine for automatically paying out / reeling in the sonar.

[0029] With the above technical solution, the design of quick-connect buckles and hanging baskets makes the installation and replacement of sonars simple and quick. The use of automatic winding machines simplifies the management of sonar cables and improves the system's degree of automation and ease of use.

[0030] The beneficial effects of the utility model are:

[0031] 1. Automatic adjustment of sonar position: The water level sensor automatically detects the sea level and transmits the data to the lifting device to achieve automatic adjustment of the sonar position. This improves the efficiency and accuracy of sonar operations, reduces the workload of manual adjustments, and enables the system to adapt to changes in sea level caused by tides, ensuring that the sonar always remains at an appropriate operating depth, effectively driving away marine life and protecting the water inlet of the nuclear power plant from blockage.

[0032] 2. Improve lifting range and efficiency: The multi-stage lifting mechanism design increases the lifting range of the system compared to a single screw. At the same time, the synchronous mechanism realizes the synchronous extension and contraction of the multi-stage tube, which improves the lifting efficiency. The design of the multi-stage lifting mechanism reduces the volume and weight restrictions of a single screw, making the system more compact and suitable for environments with limited space.

[0033] 3. Enhanced structural stability and strength: The fixed connection between the screw drive assembly and the multi-stage tube improves the stability of the structure. The use of tapered roller bearings and bolts enhances the system's tensile strength, preventing the sonar from falling due to excessive tension.

[0034] 4. Easy to install and maintain: The design of quick-connect buckles and hanging baskets simplifies the installation and replacement process of the sonar. The use of automatic reels simplifies the management of sonar cables. The use of ladders avoids the need for additional boats for installation, thus improving the system's degree of automation and ease of use.

[0035] 5. Improve system safety: Buffer pads and proximity switches are set to provide position feedback and safety control, improve the safety and protection measures of the sonar lifting system, and prevent accidental damage.

[0036] 6. Improve transmission efficiency: Changing the reduction motor group to directly connect the coupling improves transmission efficiency, reduces equipment area, and reduces energy loss.

[0037] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present utility model.

[0039] Figure 2 It is a three-dimensional schematic diagram of the lifting device according to an embodiment of the present utility model.

[0040] Figure 3 This is a cross-sectional view of a lifting device according to an embodiment of the present invention.

[0041] Figure 4 for Figure 3 Enlarged view of point A.

[0042] Figure 5 This is an exploded view of the lifting device according to an embodiment of the present utility model.

[0043] Figure 6 for Figure 5 Schematic diagram of a partial cross section.

[0044] Figure 7 for Figure 6 Enlarged view of point B.

[0045] Figure 8 for Figure 6 Enlarged view of point C.

[0046] Figure 9 for Figure 6 Enlarged view of point D.

[0047] Figure 10 This is a schematic diagram of the installation of an embodiment of the present utility model. Implementation Method

[0048] like Figure 1 - Figure 10 As shown, an ocean sonar automatic lifting and lowering control system includes:

[0049] An electronic control device, comprising an electronic control box 1 and an automatic winding machine 11 for automatically paying out / reeling in the sonar 2;

[0050] The lifting device drives the carrying device to move up and down axially. The lifting device includes a housing 3, a reduction motor unit 4 disposed in the housing 3, and at least two sets of multi-stage lifting mechanisms 5 arranged in descending order of pipe diameter and from outside to inside.

[0051] The carrying device includes a quick-connect buckle 21 installed at the lifting end of the lifting device and a hanging basket 22 detachably connected to the quick-connect buckle 21. The sonar 2 is installed on the hanging basket 22 to emit sound waves to drive away seabed creatures;

[0052] The water level sensor 23 is used to detect the sea level and transmit the detected data to the lifting device, which drives the carrying device to move axially up and down to automatically adjust the position of the sonar 2;

[0053] Ladder 9, which is used for workers to go down directly from the shore 91 to install and maintain the sonar 2, avoiding the need for an additional vessel for installation;

[0054] The multi-stage lifting mechanism 5 includes a screw rod 51, a screw rod transmission assembly 6 and a multi-stage tube 7. Adjacent screw rods 51 rotate synchronously through a synchronization mechanism 52. The inner side of the screw rod transmission assembly 6 is threadedly connected to the screw rod 51 in the corresponding multi-stage lifting mechanism 5, and the outer side is fixedly connected to the corresponding multi-stage tube 7. One of the screw rods 51 (active screw rod) is connected to the output end of the reduction motor group 4, and the screw rod 51 (driven screw rod) is driven by the synchronization mechanism 52 to rotate synchronously, so that the screw rod transmission assembly 6 moves axially along the corresponding screw rod 51 to drive the multi-stage tube 7 to extend and retract in the shell 1, and the hanging basket 22 is installed on the innermost multi-stage tube 7.

[0055] like Figure 4 、 Figure 8As shown, the screw transmission assembly 6 includes a screw nut 61, a guide slider 62 arranged outside the screw nut 61, and a bearing piston sleeve 63. The screw nut 61, the guide slider 62 and the bearing piston sleeve 63 are fixedly connected by a plurality of first bolts 621. The end of the guide slider 62 extends out of the corresponding outside of the multistage tube 7 and slides against the adjacent multistage tube 7 or the inner wall of the shell 3. The cross section of the guide slider 62 is T-shaped and is fixedly connected to the corresponding multistage tube 7 by a plurality of second bolts 622. A first tapered roller bearing 64 is arranged in the bearing piston sleeve 63. The outer ring of the first tapered roller bearing 64 is against the bearing piston sleeve 63, and the inner ring is against the corresponding screw 51. The bearing piston sleeve 63 corresponds to the first tapered roller bearing. A first positioning ring 631 is provided at one end of the roller bearing 64. One end of the first tapered roller bearing 64 is abutted against the first positioning ring 631, and the other end is fixed to the bearing piston sleeve 63 by a locking nut 632 threadedly connected to the screw rod 51. The first deep groove ball bearing 65 is installed at the other end of the first tapered roller bearing 64 corresponding to the first positioning ring 631. A second positioning ring 511 is provided at the screw rod 51 corresponding to the first deep groove ball bearing 65. The outer ring of the first deep groove ball bearing 65 is abutted against the bearing piston sleeve 63, and the inner ring is abutted against the corresponding screw rod 51. The first deep groove ball bearing 65 is fixedly installed in the bearing piston sleeve 63 by the first positioning ring 631 and the second positioning ring 511.

[0056] like Figure 4 、 Figure 7As shown, a coupling mechanism 8 is provided between the reduction motor group 4 and the multi-stage lifting mechanism 5. The coupling mechanism 8 includes a coupling seat 81 arranged in the housing 3 and fixedly connected to the housing 3, and a coupling 82 arranged in the coupling seat 81. One end of the coupling 82 is connected to the output end of the reduction motor group 4, and the other end is connected to the innermost screw 51 extending into the coupling seat 81. A third positioning ring 811 is provided in the coupling seat 81, and a second tapered roller bearing 83 is provided at the third positioning ring 811. One end of the second tapered roller bearing 83 is abutted against the third positioning ring 811, and the other end is fixed to the second tapered roller bearing 83 in the coupling seat 81 by a locking nut 84 threadedly connected to the screw 51 (active screw). The outer ring of the second tapered roller bearing 83 is abutted against the coupling seat 81. The inner ring is against the corresponding screw rod 51 (active screw rod), and a plurality of second deep groove ball bearings 85 are installed at the other end of the third positioning ring platform 811 corresponding to the second tapered roller bearing 83. A fourth positioning ring platform 512 is provided at the screw rod 51 (active screw rod) corresponding to the second deep groove ball bearing 85. The outer ring of the second deep groove ball bearing 85 is against the coupling seat 81, and the inner ring is against the corresponding screw rod 51 (active screw rod). The second deep groove ball bearing 85 is fixedly installed in the coupling seat 81 through the third positioning ring platform 811 and the fourth positioning ring platform 512. A first buffer pad 66 is provided between adjacent screw transmission assemblies 6. A second buffer pad 86 and a proximity switch 87 are provided at the end of the coupling seat 81 away from the reduction motor group 4. The proximity switch 87 is electrically connected to the reduction motor group 4.

[0057] like Figure 9 As shown, the synchronization mechanism 52 includes a linkage block 521 installed at one end of the screw rod 51 away from the screw rod transmission assembly 6 and a plurality of linkage grooves 513 opened in the adjacent corresponding screw rods 51. The outer side of the linkage block 521 is provided with linkage teeth 522 adapted to the linkage grooves 513. The linkage block 522 is used to synchronize the rotation of adjacent socketed screw rods 51.

[0058] The working principle of the automatic lifting control system of an ocean sonar of the present invention is as follows: the water level sensor 23 monitors the water level changes of the sea surface in real time and transmits the detected water level data to the electronic control device. After receiving the data from the water level sensor 23, the electronic control device processes the data through internal control logic and issues corresponding control instructions. The electronic control device provides power to the reduction motor group 4 to drive the reduction motor group 4 to start working. The reduction motor group 4 transmits power to the screw rod 51 (active screw rod) in the multi-stage lifting mechanism 5 through the coupling mechanism. The synchronous rotation of all the screw rods 51 is achieved through the synchronization mechanism 52. The screw rod transmission assembly 6 moves axially along the screw rod 51, driving the multi-stage tube 7 fixedly connected thereto to extend and retract. As the multi-stage tube 7 extends and retracts, the carrying device (basket 22) installed on the innermost multi-stage tube 7 rises and falls axially, automatically adjusting the depth of the sonar 2 so that the sonar 2 is kept at a distance of 2m from the sea level in real time, and is automatically adjusted in real time through the water level sensor 23.

Claims

1. An automatic lifting and lowering control system for ocean sonar, characterized in that: include: An electric control device, which is used to provide power to the lifting device and the sonar; A lifting device, wherein the lifting device drives the carrying device to move axially upward and downward; A carrying device, the carrying device is installed at the lifting end of the lifting device, and the carrying device is provided with a sonar; The water level sensor is used to detect the sea level and transmit the detected data to the lifting device, and the lifting device drives the carrying device to move axially up and down to automatically adjust the sonar position.

2. The automatic lifting and controlling system for ocean sonar according to claim 1, characterized in that: The lifting device includes a shell, a reduction motor group arranged in the shell and at least two groups of multi-stage lifting mechanisms which are arranged in sequence from large to small and from outside to inside according to the pipe diameter. The multi-stage lifting mechanism includes a screw, a screw transmission assembly and a multi-stage tube. Adjacent screws rotate synchronously through a synchronization mechanism. The inner side of the screw transmission assembly is threadedly connected to the screw in the corresponding multi-stage lifting mechanism, and the outer side is fixedly connected to the corresponding multi-stage tube. One of the screws is connected to the output end of the reduction motor group, and the screws are driven to rotate synchronously by the synchronization mechanism, so that the screw transmission assembly moves along the axial direction of the corresponding screw to drive the multi-stage tube to extend and retract in the shell. The carrying device is installed on the innermost multi-stage tube.

3. The automatic lifting and controlling system for ocean sonar according to claim 2, characterized in that: The screw transmission assembly includes a screw nut, a guide slider arranged outside the screw nut, and a bearing piston sleeve. The guide slider is fixedly connected to the corresponding multi-stage tube. The screw nut, guide slider and bearing piston sleeve are fixedly connected. A first tapered roller bearing is arranged in the bearing piston sleeve. The outer ring of the first tapered roller bearing is against the bearing piston sleeve, and the inner ring is against the corresponding screw.

4. The automatic lifting and controlling system for ocean sonar according to claim 3, characterized in that: The bearing piston sleeve is provided with a first positioning ring platform at one end corresponding to the first tapered roller bearing, one end of the first tapered roller bearing is against the first positioning ring platform, and the other end fixes the first tapered roller bearing in the bearing piston sleeve through a locking nut threadedly connected to the screw rod, the first deep groove ball bearing is installed at the other end of the first positioning ring platform corresponding to the first tapered roller bearing, and the screw rod is provided with a second positioning ring platform at the position corresponding to the first deep groove ball bearing, the outer ring of the first deep groove ball bearing is against the bearing piston sleeve, and the inner ring is against the corresponding screw rod, and the first deep groove ball bearing is fixedly installed in the bearing piston sleeve through the first positioning ring platform and the second positioning ring platform.

5. The automatic lifting and controlling system for ocean sonar according to claim 4, characterized in that: The screw nut, guide slider and bearing piston sleeve are fixedly connected by a plurality of first bolts. The end of the guide slider extends out of the outside of the corresponding multi-stage tube and slides against the adjacent multi-stage tube or the inner wall of the shell. The cross-section of the guide slider is T-shaped and is fixedly connected to the corresponding multi-stage tube by a plurality of second bolts.

6. The automatic lifting and controlling system for ocean sonar according to claim 4, characterized in that: The coupling mechanism between the reduction motor group and the multi-stage lifting mechanism includes a coupling seat arranged in the shell and fixedly connected to the shell, and a coupling arranged in the coupling seat. One end of the coupling is connected to the output end of the reduction motor group, and the other end is connected to the innermost screw rod extending into the coupling seat.

7. The automatic lifting and controlling system for ocean sonar according to claim 6, characterized in that: A third positioning ring is provided in the coupling seat, and a second tapered roller bearing is provided at the third positioning ring. One end of the second tapered roller bearing is against the third positioning ring, and the other end is fixed to the coupling seat by a locking nut threadedly connected to the screw. The outer ring of the second tapered roller bearing is against the coupling seat, and the inner ring is against the corresponding screw. Several second deep groove ball bearings are installed on the other end of the third positioning ring corresponding to the second tapered roller bearing. A fourth positioning ring is provided at the screw corresponding to the second deep groove ball bearing. The outer ring of the second deep groove ball bearing is against the coupling seat, and the inner ring is against the corresponding screw, and the second deep groove ball bearing is fixedly installed in the coupling seat by the third positioning ring and the fourth positioning ring.

8. The automatic lifting and controlling system for ocean sonar according to claim 6, characterized in that: A first buffer pad is provided between adjacent screw transmission assemblies, and a second buffer pad and a proximity switch are provided at one end of the coupling seat away from the reduction motor group. The proximity switch is electrically connected to the reduction motor group.

9. The automatic lifting and lowering control system for ocean sonar according to any one of claims 2 to 8, characterized in that: The synchronization mechanism includes a linkage block installed at one end of the screw away from the screw transmission assembly and a plurality of linkage grooves opened in the adjacent corresponding screws. The outer side of the linkage block is provided with linkage teeth adapted to the linkage grooves. The linkage block is used to synchronize the rotation of adjacent socketed screws.

10. The ocean sonar automatic lifting and controlling system according to any one of claims 1 to 8, characterized in that: The carrying device includes a quick-connect buckle installed at the lifting end of the lifting device and a hanging basket detachably connected to the quick-connect buckle. The sonar is installed in the hanging basket. The electronic control device includes an electronic control box and an automatic winding machine for automatically paying out / reeling in the sonar.

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