Positioning actuator for ship equipment swing and tilt test

Abstract

This invention relates to the field of marine equipment roll and tilt testing technology, and in particular to a positioning actuator for marine equipment roll and tilt testing. The actuator includes two symmetrically distributed fixed base plates. Two connecting frames are fixedly mounted on the upper side of the fixed base plates, and mounting blocks are fixedly mounted on corresponding sides of the two connecting frames. This invention drives a first sliding block and its bottom second adapting rack to reciprocate through a rotating gear block meshing with a first matching rack. The second adapting rack meshes with a toothed groove on a second rotating shaft, ultimately precisely converting the rotational motion of the first rotating disk into a predetermined angle of reciprocating oscillation of the second rotating shaft. This series of transmission structures converts the continuous rotation of the motor into a precise oscillation output. By controlling the motor's rotation angle, the oscillation amplitude of the swing rod can be linearly controlled, providing a high-precision amplitude setting capability for the test and overcoming the shortcomings of traditional mechanisms, such as difficulty in adjusting the oscillation amplitude and low precision.

Description

Technical Field

[0001] This invention relates to the field of marine equipment roll and tilt testing technology, and in particular to a positioning actuator for marine equipment roll and tilt testing. Background Technology

[0002] Ships are subject to complex marine environments such as wind, waves, and currents during navigation, resulting in multi-degree-of-freedom swaying and tilting motions. This continuous irregular motion poses a severe challenge to the stability and reliability of shipboard equipment. Therefore, marine equipment must undergo rigorous swaying and tilting tests before being installed on a ship to verify its environmental adaptability. Traditional swaying test devices have obvious limitations: most devices can only simulate periodic swaying in a single plane, with limited adjustment range for sway amplitude and frequency, and the adjustment process relies on mechanical reconstruction, which is cumbersome and time-consuming. They also lack the ability to simulate instantaneous impacts and random vibrations, resulting in a gap between them and actual ship operating conditions. Although there are some hydraulic or electric swaying platforms in the existing technology, they are often complex in structure, expensive, and difficult to achieve precise programming control of the sway trajectory. In particular, traditional devices are powerless when simulating the complex operating conditions of random oscillations caused by the impact of waves on a ship. To address this, we propose a positioning actuator for swaying and tilting tests of marine equipment. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides a positioning actuator for a shipboard equipment swaying and tilting test.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: It includes two symmetrically distributed fixed base plates. Two connecting brackets are fixedly installed on the upper side of the fixed base plates. Mounting blocks are fixedly installed on opposite sides of the two connecting brackets. A swing plate is rotatably mounted between the two mounting blocks. Two mounting brackets are fixedly installed on the upper side of the swing plate. A fixed box is fixedly installed at the upper end of the two mounting brackets. A second rotating shaft that reciprocates is provided inside the mounting bracket. A positioning structure for controlling the swing trajectory of the second rotating shaft is provided above the fixed box. Two guide grooves are formed on the bottom side of the fixed box. The side of the second rotating shaft is fixedly mounted at positions corresponding to the two guide grooves. Equipped with swing rods, a swing block is fixedly installed between the two swing rods, a movable detection platform is set above the swing block, and a swing structure that drives the detection platform to swing is set above the swing block. The swing plate has two rotating cavities inside, and a second rotating disk that rotates with the swing block is set inside the rotating cavity. A rotating extrusion block is set below the swing plate. A third connecting block that pushes the rotating extrusion block to rotate is fixedly installed on the side of the second rotating disk. An extrusion plate that pushes the swing plate to swing is set on the side of the rotating extrusion block. Two mounting seats are fixedly installed inside the fixed box, and a second rotating shaft is rotatably installed inside the two mounting seats.

[0005] As a preferred embodiment of the present invention, the positioning structure includes a toothed groove formed on the outer side of the second rotating shaft, a mounting plate slidably mounted on the upper side of the fixing box, a servo motor fixedly mounted on the upper end of the mounting plate, a first rotating disk fixedly mounted on the output end of the servo motor, a first sliding block slidably mounted on the upper side of the fixing box that reciprocates with the rotation of the first rotating disk, and a second adapting rack that meshes with the toothed groove fixedly mounted on the bottom side of the first sliding block.

[0006] As a preferred embodiment of the present invention, the side of the fixing box is provided with a first sliding groove, the first sliding block is slidably installed inside the first sliding groove, the upper side of the first sliding block is fixedly installed with a first adapter rack, the upper side of the fixing box is fixedly installed with a fixing rod, the side of the fixing rod is rotatably installed with a rotating tooth block that meshes with the first adapter rack, the upper end of the rotating tooth block is fixedly installed with a swing sleeve, and the side of the first rotating disk is fixedly installed with a rotating protrusion corresponding to the inside of the swing sleeve.

[0007] As a preferred embodiment of the present invention, a second sliding groove is provided on the bottom side of the fixing box, a second sliding block is slidably installed inside the second sliding groove, a second fixing block is fixedly installed on the bottom side of the fixing box corresponding to the position of the second sliding groove, a second servo telescopic device is fixedly installed on the side of the second fixing block corresponding to the lower part of the second sliding block, the output end of the second servo telescopic device is fixedly connected to the side of the second sliding block, and two third sliding grooves are provided on the inner side of the fixing box, a third sliding block is fixedly installed on the side of the second sliding block corresponding to the position of the third sliding groove, and the third sliding block is slidably installed inside the third sliding groove.

[0008] As a preferred embodiment of the present invention, a first connecting block is fixedly installed on the upper end of the swing block. The first connecting block is an "L"-shaped block. A rotating groove is opened on the side of the first connecting block. A rotating rod is rotatably installed inside the rotating groove. The detection platform is fixedly installed on the side of the rotating rod. A first servo telescopic device is fixedly installed above the swing block. The output end of the first servo telescopic device is movably installed on the bottom side of the detection platform.

[0009] As a preferred embodiment of the present invention, the mounting block is provided with a fixed bearing inside, and a first rotating shaft is provided inside the bearing. One end of the first rotating shaft is fixedly installed on the side of the swing plate. Two first fixing blocks are fixedly installed on the side of the mounting block. A fixing barrel is fixedly installed on one side of the two first fixing blocks corresponding to each other. One end of the first rotating shaft extends into the interior of the fixing barrel and is fixedly installed with a first torsion spring. The end of the first torsion spring away from the first rotating shaft is fixedly installed on the inner side of the fixing barrel.

[0010] As a preferred embodiment of the present invention, a second rotating disk is rotatably installed inside the rotating cavity, a guide protrusion is fixedly installed on the upper side of the second rotating disk, a second connecting block is fixedly installed on the bottom side of the swing block corresponding to the side of the guide protrusion, and a third connecting block is fixedly installed on the side of the second rotating disk corresponding to the position of the rotating extrusion block.

[0011] As a preferred embodiment of the present invention, each of the two corresponding connecting frames has a rotating hole on its side, and a rotating column is rotatably installed inside each of the two rotating holes. One side of each of the two rotating columns is fixedly installed on the side of the two rotating extrusion blocks. A connecting column is fixedly installed between the two corresponding rotating extrusion blocks. A connecting barrel is fixedly installed on the side of the connecting frame at the position corresponding to the rotating hole. A second torsion spring is fixedly installed on the end face of the rotating column, and the end of the second torsion spring away from the rotating column is fixedly installed on the inner side of the connecting barrel.

[0012] Compared with the prior art, the beneficial effects that this invention can achieve are:

[0013] 1. This invention achieves precise and controllable adjustment of the swing amplitude through the cooperation of a servo motor, a first rotating disk, and a rotating gear block. The servo motor drives the first rotating disk to rotate, and the rotating protrusion on its side moves within the swing sleeve, which is converted into the reciprocating swing of the rotating gear block. The rotating gear block meshes with the first matching rack, driving the first sliding block and the second matching rack at its bottom to reciprocate. The second matching rack meshes with the tooth groove on the second rotating shaft, ultimately accurately converting the rotational motion of the first rotating disk into the reciprocating swing of the second rotating shaft at a predetermined angle. This series of transmission structures converts the continuous rotation of the motor into precise swing output. By controlling the rotation angle of the motor, the swing amplitude of the swing rod can be linearly controlled, providing a high-precision amplitude setting capability for the experiment and overcoming the defects of difficult swing amplitude adjustment and low precision of traditional mechanisms.

[0014] 2. This invention achieves stepless adjustment of the swing amplitude parameter through the cooperation of the second servo telescoping device, the second sliding block, and the rotating protrusion. The extension and retraction of the second servo telescoping device drives the second sliding block to move vertically within the second sliding groove, thereby raising and lowering the mounting plate, its servo motor, and the first rotating disk as a whole. This changes the effective radius of action of the rotating protrusion within the swing sleeve, thereby altering the swing angle of the rotating tooth block and ultimately adjusting the swing amplitude of the second rotating shaft. This structure enables remote and precise adjustment of the swing amplitude without stopping the machine, greatly improving testing efficiency and flexibility, and meeting the need for rapid switching of multiple swing amplitudes under different testing standards.

[0015] 3. This invention achieves independent control of the tilt angle of the testing platform through the cooperation of the first servo telescoping device, the rotating rod, and the rotating groove. The rotating rod and the rotating groove on the first connecting block constitute the swing fulcrum of the testing platform. The telescoping end of the first servo telescoping device directly acts on the bottom of the testing platform, pushing it to rotate around the rotating rod, thereby changing the tilt angle of the platform. This swing structure is independent of the main swing system, allowing the testing platform to have a static or dynamic tilt angle superimposed on the horizontal swing, accurately simulating the different tilt angle conditions that the equipment experiences on the ship deck due to different installation positions, greatly enhancing the coverage and realism of the test.

[0016] 4. This invention achieves a high degree of realism in simulating compound motion through the cooperation of the second rotating disk, the third connecting block, and the rotating extrusion block. When the swing block swings back and forth, the second connecting block at its bottom drives the guide protrusion on the second rotating disk, forcing the second rotating disk to rotate. The second rotating disk periodically impacts the rotating extrusion block through the third connecting block. The rotating extrusion block drives the extrusion plate to swing, applying an intermittent extrusion force to the side of the swing plate, forcing the entire swing plate assembly to generate an additional deflection around the first rotation axis. This structure works in conjunction with the main swing system, introducing disturbances on the basis of the main swing, simulating the complex motion of a ship after its overall angle changes in waves, and significantly improving the realism of the experiment.

[0017] 5. This invention achieves automatic reset and impact vibration simulation of the mechanism through the cooperation of the first torsion spring and the second torsion spring. The deflection of the swing plate is constrained by the first torsion spring. After the extrusion force of the extrusion plate disappears, the swing plate will swing back quickly under the restoring torque of the first torsion spring. This swinging action will push the extrusion plate and the rotating extrusion block back. The rotating extrusion block compresses the second torsion spring through the rotating column, and under the restoring force of the second torsion spring and its own inertia, it will exceed the initial position and generate damped oscillation. This process simulates the damped swaying of the ship hull after being impacted by a surge and the instantaneous vibration of the equipment foundation, providing the tested equipment with a dynamic load environment that is closer to the real harsh sea conditions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the swing plate structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the fixing box structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the second rotating shaft structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the first sliding block structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the connecting frame structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the second rotating disk structure of the present invention;

[0025] Figure 8 This is a schematic diagram of the rotating extrusion block structure of the present invention;

[0026] Figure 9 This is a schematic diagram of the fixed bucket structure of the present invention.

[0027] Wherein: 111, fixed base plate; 112, connecting frame; 113, mounting block; 114, swing plate; 121, bearing; 122, first rotating shaft; 123, first fixed block; 124, fixed barrel; 125, first torsion spring; 211, mounting frame; 212, fixed box; 213, guide groove; 214, second rotating shaft; 215, swing rod; 216, swing block; 217, detection platform; 221, first connecting block; 222, rotating groove; 223, rotating rod; 224, first servo telescopic device; 311, mounting plate; 312, servo motor; 313, first rotating disk; 314, fixed rod; 315, rotating gear block; 316, swing sleeve; 31 7. Rotating protrusion; 321. First sliding groove; 322. First sliding block; 323. First adapter rack; 324. Second adapter rack; 331. Mounting base; 332. Tooth groove; 341. Second sliding groove; 342. Second sliding block; 343. Second fixing block; 344. Second servo telescopic device; 351. Third sliding groove; 352. Third sliding block; 411. Second connecting block; 412. Rotating cavity; 413. Second rotating disk; 414. Guide protrusion; 415. Third connecting block; 416. Rotating extrusion block; 417. Extrusion plate; 421. Connecting column; 422. Rotating hole; 423. Connecting barrel; 424. Rotating column; 425. Second torsion spring. Detailed Implementation

[0028] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0029] Example: Figures 1 to 9As shown, a positioning actuator for a marine equipment swaying and tilting test includes two symmetrically distributed fixed base plates 111. Two connecting frames 112 are fixedly mounted on the upper side of the fixed base plates 111. Mounting blocks 113 are fixedly mounted on opposite sides of the two connecting frames 112. A swing plate 114 is rotatably mounted between the two mounting blocks 113. Two mounting brackets 211 are fixedly mounted on the upper side of the swing plate 114. A fixed box 212 is fixedly mounted on the upper end of the two mounting brackets 211. A reciprocating second rotating shaft 214 is disposed inside the mounting bracket 211. A positioning structure for controlling the swing trajectory of the second rotating shaft 214 is disposed above the fixed box 212. The positioning structure includes a mechanism formed at... The second rotating shaft 214 has a toothed groove 332 on its outer side. A mounting plate 311 is slidably mounted on the upper side of the fixed box 212. A servo motor 312 is fixedly mounted on the upper end of the mounting plate 311. A first rotating disk 313 is fixedly mounted on the output end of the servo motor 312. A first sliding block 322, which reciprocates with the rotation of the first rotating disk 313, is slidably mounted on the upper side of the fixed box 212. A second adapting rack 324, which meshes with the toothed groove 332, is fixedly mounted on the bottom side of the first sliding block 322. A first sliding groove 321 is opened on the side of the fixed box 212. The first sliding block 322 is slidably mounted inside the first sliding groove 321. A second adapting rack 324, which meshes with the toothed groove 332, is fixedly mounted on the upper side of the first sliding block 322. The first adapter rack 323 is fixedly mounted on the upper side of the fixed box 212, and a fixed rod 314 is fixedly mounted on the side of the fixed rod 314. A rotating gear block 315 that meshes with the first adapter rack 323 is rotatably mounted on the side of the fixed rod 314. A swing sleeve 316 is fixedly mounted on the upper end of the rotating gear block 315. A rotating protrusion 317 is fixedly mounted on the side of the first rotating disk 313 corresponding to the inside of the swing sleeve 316. Two guide grooves 213 are opened on the bottom side of the fixed box 212. A swing rod 215 is fixedly mounted on the side of the second rotating shaft 214 corresponding to the positions of the two guide grooves 213. A swing block 216 is fixedly mounted between the two swing rods 215. A movable detection platform 217 is set above the swing block 216. Above the swing block 216 is a swing structure that drives the detection platform 217 to swing. The swing plate 114 has two rotating cavities 412 inside. Inside the rotating cavities 412 is a second rotating disk 413 that rotates with the swing block 216. Below the swing plate 114 is a rotating pressing block 416. A third connecting block 415 that pushes the rotating pressing block 416 to rotate is fixedly installed on the side of the second rotating disk 413. On the side of the rotating pressing block 416 is a pressing plate 417 that pushes the swing plate 114 to swing. Inside the fixed box 212 are two mounting seats 331 fixedly installed. The second rotating shaft 214 is rotatably installed inside the two mounting seats 331.

[0030] More specifically, during use, the device to be tested is placed above the testing platform 217. The second rotating shaft 214 drives the swing rod 215 to swing, the swing rod 215 drives the swing block 216 to swing, the swing block 216 drives the testing platform 217 to swing, and the testing platform 217 drives the device to swing. The positioning structure controls the swing amplitude of the second rotating shaft 214, thereby controlling the swing amplitude of the device to be tested. During the swing, the swing structure controls the swing angle of the testing platform 217, thereby controlling the swing angle of the device to be tested. When the swing block 216 swings, it drives the second rotating disk 413 to swing, the second rotating disk 413 drives the third connecting block 415 to swing, the third connecting block 415 drives the rotating pressing block 416 to swing, the rotating pressing block 416 drives the pressing plate 417 to swing, and the pressing plate 417 presses the swing plate 114, causing the swing plate 114 to swing. To simulate the swinging process in real motion, various swinging patterns are applied to the device to be detected. As the first rotating disk 313 rotates, the first sliding block 322 reciprocates. When the first sliding block 322 reciprocates, it drives the second rotating shaft 214 to reciprocate through the second adapter rack 324 and tooth groove 332, thereby driving the second rotating shaft 214 to swing back and forth. The servo motor 312 is started, and the servo motor 312 drives the first rotating disk 313 to rotate. The first rotating disk 313 drives the rotating protrusion 317 to rotate. When the rotating protrusion 317 rotates inside the swing sleeve 316, it drives the swing sleeve 316 to swing. The swing sleeve 316 drives the rotating tooth block 315 to swing. The rotating tooth block 315 meshes with the first adapter rack 323 to drive the first sliding block 322 to swing. The first sliding block 322 drives the second rotating shaft 214 to swing through the second adapter rack 324 and tooth groove 332, thereby controlling the swing amplitude of the second rotating shaft 214.

[0031] like Figure 3 and Figure 4 As shown, specifically, a first connecting block 221 is fixedly installed on the upper end of the swing block 216. The first connecting block 221 is an "L"-shaped block. A rotating groove 222 is opened on the side of the first connecting block 221. A rotating rod 223 is rotatably installed inside the rotating groove 222. The detection platform 217 is fixedly installed on the side of the rotating rod 223. A first servo telescopic device 224 is fixedly installed on the top of the swing block 216. The output end of the first servo telescopic device 224 is movably installed on the bottom side of the detection platform 217.

[0032] More specifically, during use, the first servo telescopic device 224 is controlled to drive the detection platform 217 to swing under the constraints of the rotating rod 223 and the rotating groove 222. The detection angle of the device to be detected is changed by controlling the swing tilt angle of the detection platform 217.

[0033] like Figure 6 and Figure 9 As shown, specifically, a fixed bearing 121 is provided inside the mounting block 113, and a rotating first rotating shaft 122 is provided inside the bearing 121. One end of the first rotating shaft 122 is fixedly installed on the side of the swing plate 114. Two first fixing blocks 123 are fixedly installed on the side of the mounting block 113. A fixing barrel 124 is fixedly installed on one side of the two first fixing blocks 123 corresponding to each other. One end of the first rotating shaft 122 extends into the interior of the fixing barrel 124 and is fixedly installed with a first torsion spring 125. The end of the first torsion spring 125 away from the first rotating shaft 122 is fixedly installed on the inner side of the fixing barrel 124.

[0034] More specifically, the swing plate 114 rotates between the two mounting blocks 113, and the rotation of the swing plate 114 is constrained by the first torsion spring 125.

[0035] like Figure 3 , Figure 6 and Figure 7 As shown, specifically, a second rotating disk 413 is rotatably installed inside the rotating cavity 412, a guide protrusion 414 is fixedly installed on the upper side of the second rotating disk 413, a second connecting block 411 is fixedly installed on the bottom side of the swing block 216 corresponding to the side of the guide protrusion 414, and a third connecting block 415 is fixedly installed on the side of the second rotating disk 413 corresponding to the position of the rotating pressing block 416.

[0036] More specifically, the swing block 216 drives the second connecting block 411 to press the guide protrusion 414, the guide protrusion 414 drives the second rotating disk 413 to rotate, the second rotating disk 413 drives the third connecting block 415 to press the rotating pressing block 416, the rotating pressing block 416 drives the pressing plate 417 to swing, and the pressing plate 417 presses the swing plate 114 to change the tilt angle of the swing plate 114.

[0037] like Figure 6 and Figure 8 As shown, specifically, each of the two corresponding connecting frames 112 has a rotating hole 422 on its side. A rotating column 424 is rotatably installed inside each of the two rotating holes 422. One side of each of the two rotating columns 424 is fixedly installed on the side of each of the two rotating extrusion blocks 416. A connecting column 421 is fixedly installed between the two corresponding rotating extrusion blocks 416. A connecting barrel 423 is fixedly installed on the side of the connecting frame 112 at the position corresponding to the rotating hole 422. A second torsion spring 425 is fixedly installed on the end face of the rotating column 424. The end of the second torsion spring 425 away from the rotating column 424 is fixedly installed on the inner side of the connecting barrel 423.

[0038] More specifically, after the third connecting block 415 presses the rotating pressing block 416, the rotating pressing block 416 rotates. The rotating pressing block 416 drives the pressing plate 417 to rotate, and the pressing plate 417 presses the side of the swing plate 114. When the pressing plate 417 presses the swing plate 114 to its limit, the swing plate 114 resets and swings through the first torsion spring 125 to press the pressing plate 417. The pressing plate 417 drives the rotating pressing block 416 to rotate, so that the rotating pressing block 416 moves to the initial position and swings within a range due to inertia. Then it waits for the third connecting block 415 to hit it again, thereby simulating the vibration of an impact.

[0039] like Figure 4 and Figure 5 As shown, specifically, a second sliding groove 341 is provided on the bottom side of the fixing box 212, and a second sliding block 342 is slidably installed inside the second sliding groove 341. A second fixing block 343 is fixedly installed on the bottom side of the fixing box 212 corresponding to the position of the second sliding groove 341. A second servo telescopic device 344 is fixedly installed on the side of the second fixing block 343 corresponding to the lower part of the second sliding block 342. The output end of the second servo telescopic device 344 is fixedly connected to the side of the second sliding block 342. Two third sliding grooves 351 are provided on the inner side of the fixing box 212. A third sliding block 352 is fixedly installed on the side of the second sliding block 342 corresponding to the position of the third sliding groove 351. The third sliding block 352 is slidably installed inside the third sliding groove 351.

[0040] More specifically, the second servo telescopic device 344 drives the second sliding block 342 to rise and fall. The second sliding block 342 slides inside the second sliding groove 341. The second sliding block 342 drives the mounting plate 311, servo motor 312, first rotating disk 313 and rotating protrusion 317 to change the height, so that the rotation position between the rotating protrusion 317 and the swing sleeve 316 changes to control the swing amplitude of the rotating tooth block 315, thereby changing the swing amplitude of the swing rod 215.

[0041] Working principle: The entire mechanism is powered by a servo motor 312. After startup, the servo motor drives the first rotating disk 313 to rotate, and the rotating protrusion 317 fixed on its side moves in a circular motion within the swing sleeve 316. Since the swing sleeve is fixedly connected to the rotating toothed block 315, and the rotating toothed block is hinged to the fixed rod 314, the movement of the rotating protrusion forces the rotating toothed block to swing back and forth. The rotating toothed block meshes with the first matching rack 323 fixed on the first sliding block 322, converting the swing into linear reciprocating motion of the first sliding block within the first sliding groove 321. The second matching rack 324 at the bottom of the first sliding block meshes with the tooth groove 332 on the outer surface of the second rotating shaft 214, ultimately converting the linear motion back into linear motion of the second rotating shaft on its mounting base 33. The precise angular reciprocating oscillation within the first rotating shaft 214, constrained by the swing rods 215 and guide grooves 213 on both sides, drives the swing block 216 to reciprocate stably as a whole. The amplitude of the oscillation is adjusted by changing the effective lever arm of the rotating protrusion 317 within the swing sleeve 316. The second servo telescopic device 344 is activated, pushing or pulling the second sliding block 342 to move vertically within the second sliding groove 341. Guided by the third sliding block 352 and the third sliding groove 351, the second sliding block drives the entire drive unit, consisting of the mounting plate 311, servo motor 312, and first rotating disk 313, to rise and fall synchronously. When the height of the first rotating disk changes, the position of the rotating protrusion acting on the swing sleeve changes accordingly, thereby altering the... The swing angle of the rotating gear block 315 ultimately achieves remote, stepless, and precise control of the swing amplitude of the second rotating shaft 214. The basic reciprocating swing is transmitted to the detection platform 217 above it by the swing block 216. In order to simulate static or dynamic tilting, the mechanism is equipped with an independent tilt control system. The first servo telescoping device 224 extends and retracts, and its output end pushes or pulls the bottom of the detection platform 217. Since the detection platform is hinged to the rotating groove 222 on the first connecting block 221 through the rotating rod 223, the detection platform 217 will rotate around the rotating rod 223 under the action of the first servo telescoping device, thereby superimposing an adjustable tilt angle on the basis of horizontal swinging, simulating different installation tilt angles of the equipment on the ship, and the reciprocating swing of the swing block 216. The motion causes the second rotating disk 413 to reciprocate within the rotating cavity 412. The third connecting block 415 on the side of the second rotating disk 413 swings accordingly and periodically impacts the rotating pressing block 416. The impact force causes the rotating pressing block 416 to rotate instantaneously around the rotating column 424. The pressing plate 417 fixed to it swings accordingly and applies an impact force to the side of the swing plate 114. This impact force forces the entire swing plate 114 assembly to overcome the torque of the first torsion spring 125 and generate a rapid deflection around the first rotating axis 122. After the impact force passes, the swing plate 114 quickly swings back under the restoring torque of the first torsion spring 125 and pushes back against the pressing plate 417 and the rotating pressing block 416. The rotating pressing block 416 compresses the second torsion spring 425 on its other side.Under the influence of inertia, damped oscillations are generated. This series of actions, based on the main oscillation, superimposed an impact and vibration with damping characteristics, highly reproducing the complex motion state of a ship after being impacted by a surge.

[0042] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A positioning actuator for a marine equipment swaying and tilting test, comprising two symmetrically distributed fixed base plates (111), two connecting frames (112) fixedly mounted on the upper side of the fixed base plates (111), mounting blocks (113) fixedly mounted on opposite sides of the two connecting frames (112), and a swing plate (114) rotatably mounted between the two mounting blocks (113), characterized in that, Two mounting brackets (211) are fixedly installed on the upper side of the swing plate (114). A fixed box (212) is fixedly installed on the upper end of the two mounting brackets (211). A second rotating shaft (214) that reciprocates is provided inside the mounting bracket (211). A positioning structure for controlling the swing trajectory of the second rotating shaft (214) is provided above the fixed box (212). Two guide grooves (213) are opened on the bottom side of the fixed box (212). A swing rod is fixedly installed on the side of the second rotating shaft (214) at the position corresponding to the two guide grooves (213). 215), a swing block (216) is fixedly installed between the two swing rods (215), a movable detection platform (217) is set above the swing block (216), a swing structure that drives the detection platform (217) to swing is set above the swing block (216), two rotating cavities (412) are opened inside the swing plate (114), a second rotating disk (413) that rotates with the swing block (216) is set inside the rotating cavity (412), and a rotating extrusion block (416) that rotates below the swing plate (114) is set below the swing plate (114), the second A third connecting block (415) is fixedly installed on the side of the rotating disk (413) to push the rotating extrusion block (416) to rotate. An extrusion plate (417) is provided on the side of the rotating extrusion block (416) to push the swing plate (114) to swing. Two mounting seats (331) are fixedly installed inside the fixed box (212). The second rotating shaft (214) is rotatably installed inside the two mounting seats (331). Rotating holes (422) are opened on the sides of the two corresponding connecting frames (112). Rotating holes (422) are rotatably installed inside the two rotating holes (422). The device is equipped with rotating columns (424), and the two rotating columns (424) are fixedly installed on the sides of the two rotating extrusion blocks (416) on their corresponding sides. A connecting column (421) is fixedly installed between the two corresponding rotating extrusion blocks (416). A connecting barrel (423) is fixedly installed on the side of the connecting frame (112) at the position corresponding to the rotating hole (422). A second torsion spring (425) is fixedly installed on the end face of the rotating column (424), and the end of the second torsion spring (425) away from the rotating column (424) is fixedly installed on the inner side of the connecting barrel (423).

2. The positioning actuator for a marine equipment swaying and tilting test according to claim 1, characterized in that, The positioning structure includes a toothed groove (332) opened on the outside of the second rotating shaft (214), a mounting plate (311) is slidably installed on the upper side of the fixed box (212), a servo motor (312) is fixedly installed on the upper end of the mounting plate (311), a first rotating disk (313) is fixedly installed on the output end of the servo motor (312), a first sliding block (322) is slidably installed on the upper side of the fixed box (212) and reciprocates with the rotation of the first rotating disk (313), and a second matching rack (324) that meshes with the toothed groove (332) is fixedly installed on the bottom side of the first sliding block (322).

3. The positioning actuator for a marine equipment swaying and tilting test according to claim 2, characterized in that, The fixed box (212) has a first sliding groove (321) on its side. The first sliding block (322) is slidably installed inside the first sliding groove (321). The first adapter rack (323) is fixedly installed on the upper side of the first sliding block (322). The fixed box (212) has a fixed rod (314) fixedly installed on its upper side. The fixed rod (314) has a rotating tooth block (315) that meshes with the first adapter rack (323) rotatably installed on its side. The upper end of the rotating tooth block (315) has a swing sleeve (316) fixedly installed. The side of the first rotating disk (313) has a rotating protrusion (317) fixedly installed inside the swing sleeve (316).

4. A positioning actuator for a marine equipment tilting and swaying test according to claim 3, characterized in that, The bottom side of the fixed box (212) is provided with a second sliding groove (341). A second sliding block (342) is slidably installed inside the second sliding groove (341). A second fixed block (343) is fixedly installed on the bottom side of the fixed box (212) corresponding to the position of the second sliding groove (341). A second servo telescopic device (344) is fixedly installed on the side of the second fixed block (343) corresponding to the lower part of the second sliding block (342). The output end of the second servo telescopic device (344) is fixedly connected to the side of the second sliding block (342). Two third sliding grooves (351) are provided on the inner side of the fixed box (212). A third sliding block (352) is fixedly installed on the side of the second sliding block (342) corresponding to the position of the third sliding groove (351). The third sliding block (352) is slidably installed inside the third sliding groove (351).

5. A positioning actuator for a marine equipment swaying and tilting test according to claim 4, characterized in that, The upper end of the swing block (216) is fixedly installed with a first connecting block (221). The first connecting block (221) is an "L" shaped block. A rotating groove (222) is opened on the side of the first connecting block (221). A rotating rod (223) is rotatably installed inside the rotating groove (222). The detection platform (217) is fixedly installed on the side of the rotating rod (223). A first servo telescopic device (224) is fixedly installed above the swing block (216). The output end of the first servo telescopic device (224) is movably installed on the bottom side of the detection platform (217).

6. A positioning actuator for a marine equipment swaying and tilting test according to claim 5, characterized in that, The mounting block (113) is provided with a fixed bearing (121) inside. The bearing (121) is provided with a rotating first rotating shaft (122) inside. One end of the first rotating shaft (122) is fixedly installed on the side of the swing plate (114). Two first fixing blocks (123) are fixedly installed on the side of the mounting block (113). A fixing barrel (124) is fixedly installed on the side of the two first fixing blocks (123) corresponding to each other. One end of the first rotating shaft (122) extends into the interior of the fixing barrel (124) and is fixedly installed with a first torsion spring (125). The end of the first torsion spring (125) away from the first rotating shaft (122) is fixedly installed on the inner side of the fixing barrel (124).

7. A positioning actuator for a marine equipment swaying and tilting test according to claim 6, characterized in that, The rotating cavity (412) is rotatably mounted with a second rotating disk (413). A guide protrusion (414) is fixedly mounted on the upper side of the second rotating disk (413). A second connecting block (411) is fixedly mounted on the bottom side of the swing block (216) corresponding to the side of the guide protrusion (414). A third connecting block (415) is fixedly mounted on the side of the second rotating disk (413) corresponding to the position of the rotating extrusion block (416).

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