Multi-beam sonar lifting device based on connecting rod mechanism

Abstract

The invention relates to the technical field of lifting devices, and provides a multi-beam sonar lifting device based on a connecting rod mechanism, the multi-beam sonar lifting device based on the connecting rod mechanism is simple in structure, large in effective adjusting distance and good in practicability, the multi-beam sonar lifting device comprises a cylinder barrel, a telescopic rod, connecting rods at all levels and a hydraulic cylinder, the cylinder barrel is connected with an unmanned ship carrier, and the hydraulic cylinder is hinged to the cylinder barrel; each stage of connecting rod comprises a first-stage connecting rod and a second-stage connecting rod, the first-stage connecting rod is hinged to the second-stage connecting rod, the first-stage connecting rod is hinged to the hydraulic cylinder, the first-stage connecting rod is hinged to the cylinder barrel, the second-stage connecting rod is hinged to the telescopic rod, the telescopic rod is slidably connected with the cylinder barrel, the multi-beam sonar is loaded below the telescopic rod through a flange plate, and the top end of the telescopic rod integrally penetrates into the cylinder barrel; a piston is installed on the telescopic rod, a sealing ring is installed in the cylinder barrel, coaxial positioning is achieved when the telescopic rod moves in the cylinder barrel through cooperation of the piston and the sealing ring, an end cover is installed at the bottom end of the cylinder barrel, and the movement stroke of the telescopic rod in the cylinder barrel is limited through the end cover.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting devices, and in particular to a multi-beam sonar lifting device based on a connecting rod mechanism. Background Art

[0002] With the development of human marine affairs, various marine activities are becoming increasingly frequent. Among them, seabed mapping is a widely used technology. By carrying surveying and mapping devices on specific equipment, more detailed seabed topography data can be captured.

[0003] However, there may be many difficulties in the specific implementation process of seabed mapping, including the problem of position adjustment when deploying and retrieving the mapping equipment. Taking the multi-beam sonar carried by a catamaran unmanned boat as an example, it and the unmanned boat are moved from the mother ship to the water by a crane. When entering the water, in order to prevent interference from metal parts, the multi-beam sonar needs to be lowered to a lower position. After emerging from the water, in order to prevent collision, the multi-beam sonar needs to be raised to the gap position in the middle of the catamaran unmanned boat, which requires flexible adjustment of the relative height of the multi-beam sonar. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a multi-beam sonar lifting device based on a connecting rod mechanism, which has a relatively simple structure, a large effective adjustment distance and good practicality.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-beam sonar lifting device based on a connecting rod mechanism, comprising a cylinder, a telescopic rod, connecting rods of various levels and a hydraulic cylinder, wherein the cylinder is connected to an unmanned ship carrier, the hydraulic cylinder is hinged to the cylinder, the connecting rods of various levels include a primary connecting rod and a secondary connecting rod, the primary connecting rod is hinged to the secondary connecting rod, the primary connecting rod is hinged to the hydraulic cylinder, the primary connecting rod is hinged to the cylinder, the secondary connecting rod is hinged to the telescopic rod, the telescopic rod is slidably connected to the cylinder, and a multi-beam sonar is loaded under the telescopic rod through a flange.

[0008] Preferably, the top end of the telescopic rod is integrally inserted into the cylinder, and a piston is installed on the telescopic rod, and a sealing ring is installed in the cylinder, and the coaxial positioning of the telescopic rod when moving in the cylinder is achieved through the mutual cooperation of the piston and the sealing ring.

[0009] Preferably, an end cover is installed at the bottom end of the cylinder, and the end cover is used to limit the movement stroke of the telescopic rod in the cylinder. Grease is added to the inside of the cylinder to ensure the normal operation of the telescopic rod.

[0010] Preferably, air is sealed on both sides of the piston connected to the telescopic rod. When the telescopic rod reaches the upper and lower stroke limits, a certain space is left between the upper and lower ends of the piston and the cylinder for air compression and expansion, which has a buffering effect on the telescopic rod and reduces the impact when the force changes suddenly.

[0011] Preferably, the cylinder and the telescopic rod are designed to be airtight and waterproof to prevent seawater from entering the cylinder and causing adverse effects on the movement of the telescopic rod relative to the cylinder, and the hydraulic cylinder also has waterproof properties.

[0012] Preferably, the multibeam sonar can be operated via Bluetooth remote control.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present invention provides a multi-beam sonar lifting device based on a connecting rod mechanism, which has the following beneficial effects:

[0015] 1. In the present invention, the extension and retraction of the hydraulic cylinder is controlled non-contactly to drive the connecting rod mechanism to move, thereby realizing the automatic retraction and extension of the multi-beam sonar. When the sonar is immersed in water or hoisted, the operator can remotely control the movement of the device within a certain range. Compared with manual operation, the complex procedures are reduced, and the autonomous retraction and extension of the multi-beam sonar is realized.

[0016] 2. In the present invention, by adjusting the angle between the primary connecting rod and the secondary connecting rod, the ratio of the telescopic length of the hydraulic cylinder to the lifting height of the telescopic rod can be changed accordingly, and a larger stroke range can be determined through a simple structure.

[0017] 3. In the present invention, by adjusting the distance between the primary connecting rod and the cylinder barrel and the rotating pair between the hydraulic cylinder to be as small as possible, and adjusting the distance between the primary connecting rod and the cylinder barrel and the rotating pair between the secondary connecting rod to be as large as possible, the larger stroke range of the multi-beam sonar can be determined when the stroke of the hydraulic cylinder is fixed, and the overall mechanism structure is simple and the number of parts is small.

[0018] 4. In the present invention, in a closed cylinder, gas is sealed above and below the piston, and a reaction force is provided when the gas is compressed, which can play a buffering role when it reaches the limit position of the stroke, has good impact resistance, avoids the impact on the device when the force changes suddenly, and prolongs the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the internal cross-section of the cylinder barrel of the present invention;

[0021] Figure 3 This is a schematic diagram of reducing the multi-beam sonar to the lowest state in the present invention;

[0022] Figure 4 This is a schematic diagram of the present invention raising the multi-beam sonar to the highest state.

[0023] In the figure: 1. Cylinder; 2. Telescopic rod; 3. Connecting rods at various levels; 31. Primary connecting rod; 32. Secondary connecting rod; 4. Hydraulic cylinder; 5. Carrier; 6. Piston; 7. Sealing ring; 8. End cover; 9. Multi-beam sonar. DETAILED DESCRIPTION

[0024] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0025] Example

[0026] See also Figure 1-Figure 4 A multi-beam sonar lifting device based on a connecting rod mechanism includes a cylinder 1, a telescopic rod 2, connecting rods 3 at various levels and a hydraulic cylinder 4, wherein the cylinder 1 is connected to an unmanned ship carrier 5, the hydraulic cylinder 4 is hinged to the cylinder 1, and the connecting rods 3 at various levels include a primary connecting rod 31 and a secondary connecting rod 32, the primary connecting rod 31 is hinged to the secondary connecting rod 32, the primary connecting rod 31 is hinged to the hydraulic cylinder 4, the primary connecting rod 31 is hinged to the cylinder 1, the secondary connecting rod 32 is hinged to the telescopic rod 2, the telescopic rod 2 is slidably connected to the cylinder 1, and a multi-beam sonar 9 is loaded below the telescopic rod 2 through a flange, as shown in FIG. Figure 2 As shown, the top end of the telescopic rod 2 is integrally inserted into the cylinder 1, and a piston 6 is installed on the telescopic rod 2, and a sealing ring 7 is installed in the cylinder 1. The coaxial positioning of the telescopic rod 2 when moving in the cylinder 1 is achieved through the mutual cooperation of the piston 6 and the sealing ring 7. The hydraulic cylinder 4 drives the telescopic rod 2 to slide up and down relative to the cylinder 1 through the connecting rods 3 at various levels to adjust the relative height of the multi-beam sonar 9. An end cover 8 is installed at the bottom end of the cylinder 1, and the end cover 8 is used to limit the movement stroke of the telescopic rod 2 in the cylinder 1. Grease is added to the inside of the cylinder 1 to ensure the normal operation of the telescopic rod 2. Air is sealed on both sides of the piston 6 connected to the telescopic rod 2. When the telescopic rod 2 reaches the upper and lower stroke limits, a certain space is left between the piston 6 and the cylinder 1 at the upper and lower ends for air compression and expansion, which plays a buffering role on the telescopic rod 2 and reduces the impact when the force changes suddenly.

[0027] like Figure 3 As shown in FIG. 1 , when the hydraulic cylinder 4 is extended to the shortest position, the multi-beam sonar 9 is lowered to the lowest position. During the lowering process, the gas above the piston 6 expands and the gas below is compressed. The volume change of the gas provides resistance in the opposite direction of the movement of the piston 6, playing a buffering role. The lower the stroke, the greater the resistance. Figure 4As shown, when the hydraulic cylinder 4 is extended to the longest position, the multi-beam sonar 9 is lifted to the highest position. During the rising process, the gas above the piston 6 is compressed and the gas below expands. The volume change of the gas provides resistance in the opposite direction of the movement of the piston 6, which plays a buffering role. The higher the stroke, the greater the resistance. The cylinder 1 and the telescopic rod 2 are designed with airtightness and waterproofness to prevent seawater from entering the cylinder 1 and causing adverse effects on the movement of the telescopic rod 2 relative to the cylinder 1. The hydraulic cylinder 4 also has waterproof properties. The hydraulic cylinder is equipped with a gas cylinder and a control system for providing power. The installation position of the gas cylinder and the control system for providing power is not immersed in seawater to ensure that their functions are not affected. In addition, the multi-beam sonar 9 and the gas cylinder and the control system for providing power can be remotely controlled via Bluetooth.

[0028] The specific operation method of the above embodiment is as follows:

[0029] When the surveying work starts, the crane hoists the multi-beam sonar 9 and its carrier 5 into the water. The hydraulic cylinder works by adjusting the relative rotation angle of the primary connecting rod 31 and the secondary connecting rod 32 to adjust the stroke of the telescopic rod 2, and then adjust the extension and retraction position of the multi-beam sonar 9. When the telescopic rod 2 is in the retracted state, the hydraulic cylinder 4 is extended to the longest, and the remote control hydraulic cylinder 4 is used to retract it, then the telescopic rod 2 begins to descend and reaches the constrained lowest position. When the surveying work is finished, the remote control hydraulic cylinder 4 is used to extend it, then the telescopic rod 2 begins to rise and reaches the constrained lowest position, the entire equipment is hoisted and retracted, and cleaning and protection work is done.

[0030] The above specific implementation methods are only for illustrating the technical concept and structural features of the present invention, and the purpose is to enable relevant persons familiar with this technology to implement it. However, the above content does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should fall within the protection scope of the present invention.

Claims

1. A multi-beam sonar lifting device based on a connecting rod mechanism, comprising a cylinder (1), characterized in that: It also includes a telescopic rod (2), connecting rods of various levels (3) and a hydraulic cylinder (4); the cylinder barrel (1) is connected to an unmanned ship carrier (5); the hydraulic cylinder (4) is hinged to the cylinder barrel (1); the connecting rods of various levels (3) include a primary connecting rod (31) and a secondary connecting rod (32); the primary connecting rod (31) is hinged to the secondary connecting rod (32); the primary connecting rod (31) is hinged to the hydraulic cylinder (4); the primary connecting rod (31) is hinged to the cylinder barrel (1); the secondary connecting rod (32) is hinged to the telescopic rod (2); the telescopic rod (2) is slidably connected to the cylinder barrel (1); a multi-beam sonar (9) is mounted below the telescopic rod (2) through a flange.

2. The multi-beam sonar lifting device based on a connecting rod mechanism according to claim 1 is characterized in that: The top end of the telescopic rod (2) is integrally inserted into the cylinder (1), and a piston (6) is installed on the telescopic rod (2). A sealing ring (7) is installed in the cylinder (1), and the coaxial positioning of the telescopic rod (2) when it moves in the cylinder (1) is achieved through the mutual cooperation between the piston (6) and the sealing ring (7).

3. The multi-beam sonar lifting device based on a connecting rod mechanism according to claim 2 is characterized in that: An end cover (8) is installed at the bottom end of the cylinder (1), and the end cover (8) is used to limit the movement stroke of the telescopic rod (2) in the cylinder (1). Lubricating grease is added inside the cylinder (1) to ensure the normal operation of the telescopic rod (2).

4. The multi-beam sonar lifting device based on a connecting rod mechanism according to claim 3 is characterized in that: Air is sealed on both sides of the piston (6) connected to the telescopic rod (2). When the telescopic rod (2) reaches the upper and lower stroke limits, a certain space is left between the piston (6) and the cylinder (1) at both ends for air compression and expansion, which acts as a buffer for the telescopic rod (2) and reduces the impact when the force suddenly changes.

5. The multi-beam sonar lifting device based on a connecting rod mechanism according to claim 4 is characterized in that: The cylinder barrel (1) and the telescopic rod (2) are designed to be airtight and waterproof, so as to prevent seawater from entering the cylinder barrel (1) and causing an adverse effect on the movement of the telescopic rod (2) relative to the cylinder barrel (1). The hydraulic cylinder (4) also has waterproof properties.

6. The multi-beam sonar lifting device based on a connecting rod mechanism according to claim 5, characterized in that: The multi-beam sonar (9) can be operated via Bluetooth remote control.

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