Automatic collecting and releasing device for shipborne hanging sonar

Abstract

The invention relates to the technical field of mechanical devices and transportation, in particular to an automatic collecting and releasing device for shipborne hanging sonar, and a base of the automatic collecting and releasing device is fixed on a ship deck; the folding arm is connected and mounted on the automatic folding and unfolding device base through a shaft; an electric cylinder is mounted between the folding arm and the automatic folding and unfolding device base, so that the outward folding and inward folding functions of the folding arm are realized; a fixed pulley block is arranged above the turnover arm and is used for limiting and hoisting a sonar signal transmission cable, and the turnover arm is connected with the fixed pulley block through a rotating shaft; gear sets are correspondingly mounted at two ends of the rotating shaft and the bottom ends of the folding arms on two sides to form synchronous wheel sets; a fixing frame is arranged below the fixed pulley block and is used for protecting the hanging sonar and sweeping water after the sonar transmission cable is out of water in the winding and unwinding process; and the clamping device is independently fixed on a ship deck. According to the automatic folding and unfolding device, the requirement for the structure of a ship body is low, the swing amplitude of the ship body can be stabilized in the lowering and folding processes, and safety is improved.

Description

Technical Field

[0001] The invention relates to the field of mechanical devices and transportation technology, and in particular to an automatic retracting and releasing device for a ship-borne dipping sonar. Background Art

[0002] At present, there is little research on ship-borne dipping sonars in China. The recovery and lowering of existing ship-borne dipping sonars are mostly based on moon pools or ship cranes for lowering. The moon pool-based retraction and lowering method has requirements on the hull structure and has great restrictions on use. The retraction and lowering method based on ship cranes first requires that the crane arm can extend 3-4 meters beyond the ship's side to ensure that the sonar retraction and release process does not hit the ship's side. In addition, the crane swings widely during the process of lowering and recovering the sonar, which is less safe for operators. Summary of the invention

[0003] The invention provides an automatic retracting and releasing device for a ship-borne dipping sonar, which has low requirements on the hull structure and can stabilize the swing amplitude of the ship during the lowering and recovery process, thereby improving the safety of the automatic retracting and releasing device.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A shipborne dipping sonar automatic retracting and releasing device, comprising:

[0006] Folding arm, fixed frame, rotating shaft, electric cylinder, synchronous wheel set, fixed pulley set, clamping device, automatic retracting and releasing device base;

[0007] The base of the automatic retracting and releasing device is fixed on the ship deck; the folding arm is installed on the base of the automatic retracting and releasing device through an axis connection; an electric cylinder is installed between the folding arm and the base of the automatic retracting and releasing device to realize the outward and inward folding function of the folding arm; a fixed pulley block is installed above the folding arm to limit the position of the suspended sonar signal transmission cable, and the folding arm and the fixed pulley block are connected by a rotating shaft; gear blocks are installed at both ends of the rotating shaft and at the bottom ends of the folding arms on both sides to form a synchronous wheel block to ensure that the suspended sonar does not shake during the folding process; a fixing frame is installed under the fixed pulley block to protect the suspended sonar during the retracting and releasing process and to sweep the water after the sonar transmission cable is out of water; a clamping device is fixed separately on the ship deck to fix the suspended sonar on the ship deck after recovery.

[0008] As a preferred technical solution for an automatic retractable and deployable shipborne hanging sonar device, two electric cylinders and a transmission arm are installed between the folding arm and the base of the automatic retractable and deployable device, wherein one end of one of the electric cylinders is hinged to the base of the automatic retractable and deployable device, and the other end is hinged to the middle part of the transmission arm, and one end of the other electric cylinder is hinged to the end of the transmission arm, and the other end is hinged to the folding arm, and the other end of the transmission arm is hinged to the base of the automatic retractable and deployable device.

[0009] As an optimal technical solution for an automatic retractable and deployable device for a ship-borne suspended sonar, when the automatic retractable and deployable device is in a retracted state, the projection of the folding arm is within the base of the automatic retractable and deployable device.

[0010] As a preferred technical solution for an automatic retractable device for a ship-borne dipping sonar, the automatic retractable device can extend beyond the ship's side by no less than 1 meter when in an outturned state.

[0011] As a preferred technical solution for an automatic retractable and deployable shipborne dipping sonar device, the transmission ratio of the gear sets installed corresponding to the two ends of the rotating shaft and the bottom ends of the folding arms on both sides is 1:1.

[0012] As an optimal technical solution for an automatic retractable and deployable shipborne hanging sonar device, a limit groove is provided at the base of the automatic retractable and deployable device, and a folding arm is installed in the limit groove. In the retracted state and the folded state, the inner wall of the limit groove and the folding arm form a limit.

[0013] Compared with the prior art, the automatic retracting and releasing device for a shipborne dipping sonar provided by the present invention has the following significant beneficial effects:

[0014] (1) Wider adaptability. The traditional retractable method requires the hull to have a moon pool or a ship crane that can extend 3 to 4 meters beyond the ship's side to meet the retractable requirements. This device has low requirements for hull installation and can be installed on the side or stern of the ship. It can achieve sonar recovery without considering the situation of the ship crane or the presence of a moon pool;

[0015] (2) Higher safety. In the traditional retractable and lowering method, especially when using a ship crane for retractable and lowering, the crane and the dipping sonar are connected by a flexible cable. During the retractable and lowering process, the dipping sonar swings greatly, which may cause equipment damage and personnel injury during the retrieval or lowering process, and the safety is poor. During the retrieval and lowering process of the present device, because the synchronous wheel group (6) can ensure that the relative position between the cable limit point and the dipping sonar remains unchanged, the posture of the dipping sonar can be kept stable during the entire process of the folding arm (1) being turned outward and retracted, and the dipping sonar is protected by the fixed frame (3) on all sides, so it is safer.

[0016] (3) Easier to operate. In the traditional retractable method, when using a ship crane to retract and lower the sonar, more manpower is needed to ensure the safe recovery and lowering of the dipping sonar. During the recovery and lowering process of this device, only one person is needed to complete the entire process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of automatic retracting and releasing device

[0018] Figure 2 Schematic diagram of the retracted state of the automatic retractable device

[0019] Figure 3 Schematic diagram of the automatic retractable device in the outward state

[0020] Figure 4 Schematic diagram of the automatic retractable device when retracting and releasing the sonar into and out of the water

[0021] Description of reference numerals:

[0022] 1. Folding arm; 2. Suspended sonar; 3. Fixed frame; 4. Rotating shaft; 5. Electric cylinder; 6. Synchronous wheel set;

[0023] 7. Fixed pulley block; 8. Clamping device; 9. Automatic retractable device base DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0025] like Figure 1-Figure 4 The shipborne hanging sonar automatic retracting and releasing device shown comprises a folding arm 1, a fixing frame 3, a rotating shaft 4, an electric cylinder 5, a synchronous wheel set 6, a fixed pulley set 7, a clamping device 8, and an automatic retracting and releasing device base 9;

[0026] The base 9 of the automatic retracting and releasing device is fixed on the ship deck; the folding arm 1 is installed on the base 9 of the automatic retracting and releasing device through an axis connection; an electric cylinder 5 is installed between the folding arm 1 and the base 9 of the automatic retracting and releasing device to realize the outward and inward folding function of the folding arm 1; a fixed pulley group 7 is installed above the folding arm 1, which is used to limit the position of the signal transmission cable of the suspended sonar 3, and the folding arm 1 and the fixed pulley group 7 are connected by a rotating shaft 4; gear groups are installed at both ends of the rotating shaft 4 and at the bottom ends of the folding arms 1 on both sides to form a synchronous wheel group 6, which is used to ensure that the suspended sonar 3 does not shake during the folding process; a fixing frame 3 is installed below the fixed pulley group 7, which is used to protect the suspended sonar during the retracting and releasing process and to sweep the water after the sonar transmission cable is out of the water; a clamping device 8 is fixed separately on the ship deck, which is used to fix the suspended sonar on the ship deck after recovery.

[0027] In one embodiment, two electric cylinders and a transmission arm are installed between the folding arm 1 and the base 9 of the automatic retracting device, one end of one of the electric cylinders is hinged to the base of the automatic retracting device, and the other end is hinged to the middle of the transmission arm, one end of the other electric cylinder is hinged to the end of the transmission arm, and the other end is hinged to the folding arm, and the other end of the transmission arm is hinged to the base of the automatic retracting device.

[0028] In one embodiment, the automatic retractable device is in the retracted state, and the projection of the folding arm 1 is within the base 9 of the automatic retractable device.

[0029] In one embodiment, the automatic retractable device can extend at least 1 meter beyond the ship's side in the turned-out state. During operation, the folding arm 1 can be folded and extended 1 meter beyond the ship's side, and the retractable function of the suspended sonar can be steadily completed when it is out of water or into water.

[0030] In one embodiment, the transmission ratio of the gear sets installed corresponding to the two ends of the rotating shaft 4 and the bottom ends of the folding arms 1 on both sides is 1:1.

[0031] In one embodiment, the base 9 of the automatic retracting and releasing device is provided with a limiting groove, and the folding arm is installed in the limiting groove. In the retracted state and the turned-out state, the inner wall of the limiting groove and the folding arm form a limit.

[0032] Lowering process: When the device starts to lower the dipping sonar, the clamping device 8 is loosened, the dipping sonar transmission cable is tightened, and the dipping sonar is stored in the fixing frame 3. Figure 2 As shown, the electric cylinder 5 begins to extend, and the folding arm 1 folds outward. Due to the presence of the synchronous wheel set 6, the synchronous wheel at the bottom of the folding arm 1 is fixed, and the synchronous belt slides relatively to maintain a balanced state to drive the synchronous wheel on the side of the shaft 4 to rotate. The transmission ratio of the two synchronous wheels is 1:1. The synchronous wheel on the side of the shaft is fixed to the shaft 4. When the shaft 4 rotates, the speed of the shaft 4 is the same as that of the bottom shaft. The fixing frame 3 is fixedly connected to the shaft 4, thereby ensuring that the fixing frame 3 will not shake during the process of completing the external turning state, thereby ensuring that the posture of the dipping sonar is stable and does not shake during the lowering process; when the folding arm 1 is extended about 1m from the edge of the ship, as shown in the attached figure Figure 3 As shown in the figure, the electric cylinder 5 reaches the limit position, the folding arm 1 stops folding, the sonar transmission cable starts to loosen and lower, and the sonar is submerged. Figure 4 shown.

[0033] Recovery process: When the device starts to recover the dipping sonar, the transmission cable is tightened, and the dipping sonar is guided into the fixing frame 3 through the bell mouth below the fixing frame 3. Figure 3 As shown in the figure, the electric cylinder 5 is retracted, and the folding arm 1 begins to retract. Due to the presence of the synchronous wheel set 6, the posture of the suspended sonar is stable and does not shake during the recovery process; when the electric cylinder 5 reaches the recovery limit position, the folding arm 1 stops folding, as shown in the figure. Figure 2 As shown, the dipping sonar transmission cable begins to loosen and lower the dipping sonar, the clamping device 8 is loosened, the dipping sonar enters the clamping device 8, and the clamping device 8 is tightened to clamp the bottom of the sonar, as shown in the attached figure. Figure 1 As shown, the recycling is completed.

[0034] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0035] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these changes and deformations should all fall within the scope of protection of the claims of the present invention.

Claims

1. A shipborne dipping sonar automatic retracting and releasing device, characterized in that: include: Folding arm, fixed frame, rotating shaft, electric cylinder, synchronous wheel set, fixed pulley set, clamping device, automatic retracting and releasing device base; The base of the automatic retracting and releasing device is fixed on the ship deck; the folding arm is installed on the base of the automatic retracting and releasing device through an axis connection; an electric cylinder is installed between the folding arm and the base of the automatic retracting and releasing device to realize the outward and inward folding function of the folding arm; a fixed pulley block is installed above the folding arm to limit the position of the suspended sonar signal transmission cable, and the folding arm and the fixed pulley block are connected by a rotating shaft; gear blocks are installed at both ends of the rotating shaft and at the bottom ends of the folding arms on both sides to form a synchronous wheel block to ensure that the suspended sonar does not shake during the folding process; a fixing frame is installed under the fixed pulley block to protect the suspended sonar during the retracting and releasing process and to sweep the water after the sonar transmission cable is out of water; a clamping device is fixed separately on the ship deck to fix the suspended sonar on the ship deck after recovery.

2. The automatic retracting and releasing device for shipborne dipping sonar according to claim 1, characterized in that: Two electric cylinders and a transmission arm are installed between the folding arm and the base of the automatic retracting device, one end of one electric cylinder is hinged to the base of the automatic retracting device, and the other end is hinged to the middle part of the transmission arm, one end of the other electric cylinder is hinged to the end of the transmission arm, and the other end is hinged to the folding arm, and the other end of the transmission arm is hinged to the base of the automatic retracting device.

3. The automatic retracting and releasing device for shipborne dipping sonar according to claim 1, characterized in that: The automatic retractable device is in a retracted state, and the projection of the folding arm is inside the base of the automatic retractable device.

4. The automatic retracting and releasing device for shipborne dipping sonar according to claim 1, characterized in that: When the automatic retractable device is in the turned-out position, it can extend beyond the ship's side by not less than 1 meter.

5. The automatic retracting and releasing device for shipborne dipping sonar according to claim 1, characterized in that: The transmission ratio of the gear sets installed correspondingly at the two ends of the rotating shaft and the bottom ends of the folding arms on both sides is 1:

1.

6. The automatic retracting and releasing device for shipborne dipping sonar according to claim 1, characterized in that: The base of the automatic retractable device is provided with a limiting groove, and the folding arm is installed in the limiting groove. In the retracted state and the turned-out state, the inner wall of the limiting groove and the folding arm form a limit.

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