Marine deck jacking vehicle load test platform

Abstract

The utility model relates to the technical field of marine deck jacking vehicle load test platforms, and discloses a marine deck jacking vehicle load test platform comprising a chassis, one side of the chassis is fixedly connected with a servo motor, and the top of the chassis is fixedly connected with two symmetrical second plugging grooves. A sliding connection block is clamped in each of the two second inserting connection grooves in a sliding mode, a two-way thread adjusting structure driven by a servo motor is matched with flexible connection between a servo electric cylinder and the sliding connection blocks, the supporting position can be flexibly adjusted according to different types of jacking vehicles, and the adaptability is improved; meanwhile, a bearing cylinder with a spring rebounding mechanism is arranged, so that secondary support of the test board under the extreme load condition is realized, and the stability and the safety of the platform are remarkably improved; in addition, through the laser displacement sensor which is adjustably installed, deformation and deflection of the jacking vehicle in the loading process can be accurately monitored, and scientificity and visualization of test data are ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of load testing platforms for marine deck lifting vehicles, specifically a load testing platform for marine deck lifting vehicles. Background Technology

[0002] The marine deck lifting vehicle load testing platform is a specialized piece of equipment used for performance verification, load-bearing capacity testing, and structural strength assessment of deck lifting vehicles. It is commonly used in ship maintenance, repair and construction operations, and port engineering.

[0003] Existing marine deck jack load testing platforms primarily focus on verifying the load-bearing capacity and structural stability of the jack itself, while paying less attention to the stability and safety of the testing platform itself during load testing. When facing jack tests of different specifications or under heavy load conditions, the platform often lacks good adaptability and adjustability, leading to stress concentration in the support structure and untimely response. This can easily cause safety hazards such as platform sinking, deformation, or instability, affecting not only testing accuracy but also potentially damaging the jack.

[0004] Therefore, it is necessary to design a load testing platform for a ship deck lifting vehicle to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a load testing platform for a marine deck lifting vehicle to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a load testing platform for a marine deck lifting vehicle, comprising a chassis, a servo motor fixedly connected to one side of the chassis, and two symmetrical second insertion slots fixedly connected to the top of the chassis, with a sliding block slidably engaged inside each of the two second insertion slots. A bidirectional threaded rod is fixedly connected to the output shaft of the servo motor, and two sliding blocks are threadedly sleeved onto both ends of the bidirectional threaded rod. A servo electric cylinder is fixedly connected to the top of each of the two sliding blocks, and a connecting block is fixedly connected to the top of each of the two servo electric cylinders. Another sliding block is fixedly connected to the top of each end of each of the two connecting blocks. A test platform is sleeved on the top of all four sliding blocks, and the bottom of the test platform has four symmetrically arranged slots. A first insertion slot is provided, and four sliding blocks are respectively slidably engaged inside the four first insertion slots. An insertion plate is slidably inserted between two of the connecting blocks. A fixing plate is fixed to one side of the insertion plate. A sliding groove is provided on one side of the fixing plate. A screw is rotatably inserted into the sliding groove. A knob is fixed to the top of the screw. A threaded sleeve is threaded onto the outer surface of the screw. A mounting plate is fixed to one side of the threaded sleeve. Two symmetrical mounting holes are provided on the outer surface of the mounting plate. A load-bearing cylinder is fixed to the bottom of both ends of the insertion plate. Two symmetrical connecting columns are fixed to the top of the chassis. A spring is fixed to the bottom of the inner cavity of each of the two connecting columns. The two load-bearing cylinders are slidably inserted into the interior of the two connecting columns.

[0007] Preferably, the second insertion slot and the first insertion slot are both T-shaped, and the sliding block is also T-shaped. The six sliding blocks are respectively slidably engaged inside the four first insertion slots and the two second insertion slots.

[0008] Preferably, the two ends of the two springs are fixedly connected to the bottom ends of the two load-bearing cylinders and the bottom of the inner cavity of the two connecting columns, respectively.

[0009] Preferably, the height of the load-bearing cylinder is higher than the top of the lower end of the servo electric cylinder, and the two load-bearing cylinders are respectively fixed to the outside of the two second insertion slots.

[0010] Preferably, side plates are fixed to both sides of the test platform, and a transport platform is fixed to the side of the test platform away from the fixed plate, and the bottom of the transport platform is on the same horizontal plane as the bottom of the chassis.

[0011] Preferably, the outer surfaces of both connecting blocks are provided with square sockets, and a gap is provided between the top of the two plug-in plates and the top of the two square sockets.

[0012] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0013] This invention utilizes a servo motor-driven bidirectional threaded adjustment structure, combined with a flexible connection between the servo cylinder and the sliding block, to flexibly adjust the support position according to different models of lifting vehicles, thus improving adaptability. Simultaneously, a load-bearing cylinder with a spring-loaded rebound mechanism provides secondary support for the test platform under extreme load conditions, significantly enhancing the platform's stability and safety. Furthermore, an adjustable laser displacement sensor accurately monitors the deformation and deflection of the lifting vehicle during loading, ensuring the scientific validity and visualization of the test data. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the first insertion slot structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the second insertion slot structure of this utility model;

[0017] In the diagram: 1. Chassis; 2. Test bench; 3. Transport platform; 4. Side plate; 5. Fixing plate; 6. Knob; 7. Screw; 8. Threaded sleeve block; 9. Mounting plate; 10. Servo electric cylinder; 11. Load-bearing cylinder; 12. Connecting column; 13. Spring; 14. Insertion plate; 15. Connecting block; 16. Sliding block; 17. First insertion slot; 18. Servo motor; 19. Bidirectional threaded rod; 20. Second insertion slot. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Obviously, many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Please see Figure 1-3This utility model provides a load testing platform for a marine deck lifting vehicle, including a chassis 1. A servo motor 18 is fixedly connected to one side of the chassis 1, and two symmetrical second insertion slots 20 are fixedly connected to the top of the chassis 1. A sliding block 16 is slidably engaged inside each of the two second insertion slots 20. A bidirectional threaded rod 19 is fixedly connected to the output shaft of the servo motor 18, and the two sliding blocks 16 are respectively threaded onto both ends of the bidirectional threaded rod 19. A servo electric cylinder 10 is fixedly connected to the top of each of the two sliding blocks 16, and a connecting block 15 is fixedly connected to the top of each of the two servo electric cylinders 10. Each end of the connector is fixedly connected to another sliding block 16, and the tops of the four sliding blocks 16 are collectively fitted with a test platform 2. The bottom of the test platform 2 has four symmetrical first insertion slots 17, and the four sliding blocks 16 are respectively slidably engaged in the four first insertion slots 17. An insertion plate 14 is slidably inserted between the two connecting blocks 15, and a fixing plate 5 is fixedly connected to one side of the insertion plate 14. A sliding groove is opened on one side of the fixing plate 5, and a screw 7 is rotatably inserted into the sliding groove. A knob 6 is fixedly connected to the top of the screw 7, and the outer surface of the screw 7 is threaded. A sleeve block 8 is provided, and a mounting plate 9 is fixedly connected to one side of the threaded sleeve block 8. Two symmetrical mounting holes are provided on the outer surface of the mounting plate 9. Load-bearing cylinders 11 are fixedly connected to the bottom of both ends of the insertion plate 14. Two symmetrical connecting columns 12 are fixedly connected to the top of the chassis 1. Springs 13 are fixedly connected to the bottom of the inner cavities of the two connecting columns 12. The two load-bearing cylinders 11 are slidably inserted into the interiors of the two connecting columns 12. When the lifting vehicle is placed on top of the test platform 2, the load of the lifting vehicle is tested by adding counterweights. A laser displacement sensor is installed on the mounting plate 9, and the laser displacement is controlled by rotating the knob 6. The displacement sensor is aligned with the stress point of the lifting vehicle to observe its deflection, deformation, and rebound. Depending on the specifications of the lifting vehicle, the servo motor 18 is activated, and the distance between the two servo cylinders 10 is adjusted to adjust the support points of the two connecting blocks 15 on the test platform 2. This allows the test platform 2 to better support different models of lifting vehicles. At the same time, if the two servo cylinders 10 are subjected to excessive pressure, and the test platform 2 falls, it will rebound into the two load-bearing cylinders 11 through the two connecting columns 12. The two load-bearing cylinders 11 will then provide subsequent support for the test platform 2, ensuring safety during the testing process.

[0021] In order to stably adjust the distance between the two servo cylinders 10, the second insertion slot 20 and the first insertion slot 17 are both T-shaped, and the sliding block 16 is also T-shaped. The six sliding blocks 16 are respectively slidably engaged inside the four first insertion slots 17 and the two second insertion slots 20.

[0022] In order to provide the rebound force of the two connecting posts 12, the two ends of the two springs 13 are respectively fixed to the bottom ends of the two load-bearing cylinders 11 and the bottom of the inner cavity of the two connecting posts 12.

[0023] In order to prevent the test platform 2 from accidentally falling when the two servo cylinders 10 are subjected to excessive force, the two load-bearing cylinders 11 can be used for subsequent support to increase the safety of the test process. The height of the load-bearing cylinders 11 is higher than the top of the lower end of the servo cylinders 10, and the two load-bearing cylinders 11 are respectively fixed to the outside of the two second insertion slots 20.

[0024] To increase the safety of both sides of the test platform 2 during testing, side plates 4 are fixed to both sides of the test platform 2, and a transport platform 3 is fixed to the side of the test platform 2 away from the fixed plate 5. The bottom of the transport platform 3 is at the same level as the bottom of the chassis 1. The transport platform 3 facilitates the transport of the lifting vehicle, and the test height of the lifting vehicle can be adjusted by extending and retracting two servo electric cylinders 10.

[0025] In order to facilitate the synchronous lifting of the plug-in plate 14 with the lifting of the test bench 2, and to avoid excessive load on the two connecting blocks 15, so as to provide secondary protection only in case of subsequent failure, the outer surfaces of the two connecting blocks 15 are provided with square sockets, and a gap is provided between the top of the two plug-in plates 14 and the top of the two square sockets.

[0026] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0028] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A load testing platform for a marine deck lifting vehicle, comprising a chassis (1), characterized in that: A servo motor (18) is fixedly connected to one side of the chassis (1), and two symmetrical second insertion slots (20) are fixedly connected to the top of the chassis (1). A sliding block (16) is slidably engaged inside each of the two second insertion slots (20). A bidirectional threaded rod (19) is fixedly connected to the output shaft of the servo motor (18), and two sliding blocks (16) are threaded onto both ends of the bidirectional threaded rod (19). A servo electric cylinder (10) is fixedly connected to the top of each of the two sliding blocks (16), and a connecting block (15) is fixedly connected to the top of each of the two servo electric cylinders (10). Another sliding block (16) is fixedly connected to the top of each end of the two connecting blocks (15). A test platform (2) is sleeved on the top of the four sliding blocks (16), and four symmetrical first insertion slots (17) are opened at the bottom of the test platform (2). The four sliding blocks (16) are slidably engaged. Inside the four first insertion slots (17), and between the two connecting blocks (15), a plug plate (14) is slidably inserted. A fixing plate (5) is fixed to one side of the plug plate (14). A sliding groove is provided on one side of the fixing plate (5). A screw (7) is rotatably inserted into the sliding groove. A knob (6) is fixed to the top of the screw (7). A threaded sleeve (8) is threaded onto the outer surface of the screw (7). A mounting plate (9) is fixed to one side of the block (8). Two symmetrical mounting holes are opened on the outer surface of the mounting plate (9). A load-bearing cylinder (11) is fixed to the bottom of both ends of the plug plate (14). Two symmetrical connecting columns (12) are fixed to the top of the chassis (1). A spring (13) is fixed to the bottom of the inner cavity of the two connecting columns (12). The two load-bearing cylinders (11) are slidably inserted into the interior of the two connecting columns (12).

2. The marine deck lifting vehicle load testing platform according to claim 1, characterized in that: The second insertion slot (20) and the first insertion slot (17) are both T-shaped, and the sliding block (16) is also T-shaped. The six sliding blocks (16) are respectively slidably engaged inside the four first insertion slots (17) and the two second insertion slots (20).

3. The marine deck lifting vehicle load testing platform according to claim 1, characterized in that: The two ends of the two springs (13) are respectively fixed to the bottom ends of the two load-bearing cylinders (11) and the bottom of the inner cavity of the two connecting columns (12).

4. The marine deck lifting vehicle load testing platform according to claim 1, characterized in that: The height of the load-bearing cylinder (11) is higher than the top of the lower end of the servo electric cylinder (10), and the two load-bearing cylinders (11) are respectively fixed to the outside of the two second insertion slots (20).

5. The marine deck lifting vehicle load testing platform according to claim 1, characterized in that: The test platform (2) is fixed with side plates (4) on both sides, and a transport platform (3) is fixed to the side of the test platform (2) away from the fixed plate (5), and the bottom of the transport platform (3) is on the same horizontal plane as the bottom of the chassis (1).

6. The marine deck lifting vehicle load testing platform according to claim 1, characterized in that: The outer surfaces of the two connecting blocks (15) are provided with square sockets, and there is a gap between the top of the two plug plates (14) and the top of the two square sockets.

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