Equipment and method for testing draft of special vehicle

Abstract

The invention belongs to the technical field of draft survey, and particularly relates to a draft testing device and method for a special vehicle, and the device comprises a testing box, a fixing mechanism, a detection mechanism, an inclination angle mechanism and a wave making mechanism, the detection mechanism comprises a pneumatic rod and an air cavity, a partition plate is arranged in the testing box, the air cavity is formed in the partition plate, and the pneumatic rod is arranged at the top of the partition plate; an air cavity is formed in the test box, the air cavity is communicated with a pneumatic rod, a rotating ball is arranged above the pneumatic rod, an attaching plate is rotationally matched with the rotating ball, a pressure sensor is arranged on the attaching plate, a placement groove is formed in the side wall of the test box, and a compressed air rod is placed in the placement groove. Through the arrangement of the first hydraulic telescopic rod, the posture of the vehicle is adjusted, through the arrangement of the detection mechanism, a pressure sensor is attached to the bottom of the vehicle, through the arrangement of the pressure sensor, the immersion depth is detected and calculated in real time, and through the arrangement of the wave manufacturing mechanism, the simulation of wave impact on the vehicle is achieved.

Description

Technical Field

[0001] This invention belongs to the field of draft depth surveying technology, specifically relating to a draft depth testing device and testing method for special vehicles. Background Technology

[0002] Specialized vehicles such as fire trucks, amphibious vehicles, rescue vehicles, and military armored vehicles often need to perform tasks in complex aquatic environments. For example, fire trucks may need to navigate flooded roads to reach fire sites during floods; amphibious vehicles need to transport personnel and supplies and conduct rescue operations in rivers, lakes, and seas; and rescue vehicles often face the challenge of wading through water during disaster relief efforts such as earthquakes and floods.

[0003] For these vehicles, draft is a critical parameter during wading, directly affecting driving safety, passability, and the effectiveness of mission execution. Therefore, accurately measuring the draft of special vehicles has significant practical importance.

[0004] Existing technologies cannot monitor vehicle draft data in real time. Furthermore, when testing vehicle draft data, the vehicle is usually placed on calm water, which cannot simulate the draft data of vehicles in different water environments. Incomplete data affects the accuracy of the test. Summary of the Invention

[0005] (a) Technical problems to be solved The technical problem to be solved by the present invention is: how to provide a special vehicle draft depth testing device and testing method to solve the problem mentioned in the background art that the prior art cannot dynamically monitor the vehicle draft depth data in real time when testing vehicle draft depth data.

[0006] (II) Technical Solution To solve the above technical problems, the present invention provides a special vehicle draft depth testing device, the testing device comprising: a test box (1), a fixing mechanism (2), a detection mechanism (3), an inclination mechanism (4), and a wave generation mechanism (5). The testing mechanism (3) includes a pneumatic rod (6), a bonding plate (7), and an air chamber (8). A partition (9) is provided inside the test box (1). An air chamber (8) is opened on the partition (9). Multiple pneumatic rods (6) are provided on the top of the partition (9). The air chamber (8) is connected to the pneumatic rods (6). A rotating ball (10) is provided above the pneumatic rods (6). The bonding plate (7) is rotatably fitted on the rotating ball (10). A pressure sensor (12) is provided on the bonding plate (7). A first limiting groove (13) is provided at one end of the air chamber (8). A placement groove (14) is provided on the side wall of the test box (1). A second limiting groove (15) is provided at one end of the placement groove (14). A compressed air rod (16) is placed in the placement groove (14).

[0007] The compressed air rod (16) is provided with a pull handle (17) at one end, and the pull handle (17) is provided with anti-slip texture. The test box (1) is provided with a baffle groove (36) on one side, and a baffle (37) is slidably fitted in the baffle groove (36).

[0008] The fixing mechanism (2) includes a first hydraulic telescopic rod (18) and a rotating wheel (19). The fixed end of the first hydraulic telescopic rod (18) is fixedly connected to the bottom of the inner cavity of the test box (1). The telescopic end of the first hydraulic telescopic rod (18) is fixedly connected to a support plate (20). The support plate (20) has rotating shafts symmetrically arranged at both ends. The rotating wheel (19) is sleeved on the rotating shaft.

[0009] The wave-making mechanism (5) includes a rounded corner weight (21), a take-up device (22), and a mounting block (23). The top of the test box (1) is fixedly connected to the mounting block (23), and multiple take-up devices (22) are installed inside the mounting block (23). The rounded corner weight (21) is installed below the mounting block (23). The take-up device (22) is connected to the rounded corner weight (21) by a rope. The side wall of the test box (1) is provided with a sliding groove (24). The rounded corner weight (21) slides in cooperation with the sliding groove (24) through a slider. The top of the partition (9) is provided with multiple buffer springs (25), and the buffer springs (25) are installed at the bottom of the rounded corner weight (21).

[0010] The test box (1) is connected to a base (26) at the bottom via a tilting mechanism (4). The tilting mechanism (4) includes a second hydraulic telescopic rod (27) and a third hydraulic telescopic rod (28). The stationary end of the second hydraulic telescopic rod (27) is fitted onto the top of the base (26), and the extended end of the second hydraulic telescopic rod (27) is fitted onto the bottom of the test box (1). The stationary end of the third hydraulic telescopic rod (28) is fitted onto the top of the base (26), and the third hydraulic telescopic rod (28) is fixedly connected to the extended side of the second hydraulic telescopic rod (27).

[0011] The base (26) is provided with multiple sets of wheels (29) below it, and the base (26) is provided with multiple electric hydraulic outriggers (30) at the bottom.

[0012] The partition (9) is provided with a hanging shaft (31) at one end, the test box (1) is provided with a moving groove (32) at the bottom, an auxiliary plate (33) is slidably fitted in the moving groove (32), a hook (11) is provided at one end of the auxiliary plate (33), a limit groove (34) is provided at one end of the moving groove (32), and a limit block (35) is slidably fitted in the limit groove (34).

[0013] The pressure sensor (12) is model MS5837.

[0014] Furthermore, the present invention also provides a method for testing the draft of special vehicles, the method being implemented based on the aforementioned equipment, and the method comprising the following steps: Step S1: Drive the wheel into the fixing mechanism (2); Step S2: Add water to the test chamber (1) to create a test environment; Step S3: Start the wave generation mechanism (5) to simulate the impact of water waves on the vehicle's draft. Step S4: Activate different first hydraulic telescopic rods (18) to simulate the effect of vehicle attitude changes on draft in different underwater environments; Step S5: Read the pressure sensor (12) to dynamically measure the water pressure data at the bottom of the vehicle, combine the water density and gravitational acceleration to calculate the draft, and analyze the data after starting the vehicle to test the draft of the vehicle to calculate the draft of the vehicle.

[0015] The process includes step S501 after step S5: by adjusting the tilt mechanism (4), the influence of different slopes on the vehicle's draft is simulated when the vehicle is going uphill or downhill in the water. Data from three pressure sensors (12) located at the bottom of the vehicle (front, middle and rear) are read, and data after the vehicle is started and the draft is read. The average data is analyzed to calculate the vehicle's draft.

[0016] (III) Beneficial Effects Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention achieves the goal of preventing the vehicle from shifting when starting by setting a fixed mechanism, achieves the goal of adjusting the vehicle's posture by setting a first hydraulic telescopic rod, achieves the goal of attaching a pressure sensor to the bottom of the vehicle by setting a detection mechanism, achieves the goal of detecting and calculating the draft in real time by setting a pressure sensor, achieves the goal of simulating wave impact on the vehicle by setting a wave-making mechanism, and facilitates the transfer of the device by setting wheels.

[0017] (2) The present invention simulates the scenario of a vehicle going uphill and downhill in water by setting up an tilting mechanism. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main view structure of the present invention; Figure 2 This is a top-down structural diagram of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention from a frontal view. Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention from a top-down perspective; Figure 5 This is a schematic diagram of part of the testing mechanism structure of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure from the main perspective of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure from the left perspective of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure from the left perspective of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1-Test box, 2-Fixing mechanism, 3-Detection mechanism, 4-Tilt mechanism, 5-Wave manufacturing mechanism, 6-Pneumatic rod, 7-Adhesive plate, 8-Air chamber, 9-Partition plate, 10-Rotating ball, 11-Hook, 12-Pressure sensor, 13-First limiting groove, 14-Placement groove, 15-Second limiting groove, 16-Compressed air rod, 17-Pull handle, 18-First hydraulic telescopic rod, 19-Rotating wheel, 20-Support plate, 21-Rounded corner weight, 22-Coil take-up device, 23-Placement block, 24-Sliding groove, 25-Buffer spring, 26-Base, 27-Second hydraulic telescopic rod, 28-Third hydraulic telescopic rod, 29-Wheel, 30-Electro-hydraulic outrigger, 31-Hanging shaft, 32-Moving groove, 33-Auxiliary plate, 34-Limiting groove, 35-Limiting block, 36-Baffle groove, 37-Baffle. Detailed Implementation

[0020] To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0021] Example 1 As attached Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 5 As shown, a special vehicle draft testing device according to this embodiment includes a test box 1, a fixing mechanism 2, a detection mechanism 3, a tilting mechanism 4, and a wave-making mechanism 5. The detection mechanism 3 includes a pneumatic rod 6, a bonding plate 7, and an air chamber 8. A partition 9 is provided inside the test box 1, and an air chamber 8 is opened in the partition 9. Multiple pneumatic rods 6 are provided on the top of the partition 9. The air chamber 8 is connected to the pneumatic rods 6. A rotating ball 10 is provided above the pneumatic rod 6. The bonding plate 7 is rotatably fitted on the rotating ball 10. A pressure sensor 12 is provided on the bonding plate 7. A first limiting groove 13 is provided at one end of the air chamber 8. A placement groove 14 is provided on the side wall of the test box 1. A second limiting groove 15 is provided at one end of the placement groove 14. A compressed air rod 16 is placed in the placement groove 14.

[0022] As attached Figure 1 Appendix Figure 2 and attached Figure 4 As shown, a pull handle 17 is provided at one end of the compressed air rod 16. The pull handle 17 is provided with anti-slip texture. A baffle groove 36 is provided on one side of the test box 1. A baffle 37 is slidably fitted in the baffle groove 36.

[0023] As attached Figure 1 Appendix Figure 6 and attached Figure 7 As shown, the wave-making mechanism 5 includes a rounded corner weight 21, a take-up device 22, and a mounting block 23. The mounting block 23 is fixedly connected to the top of the test box 1. Multiple take-up devices 22 are installed inside the mounting block 23. The rounded corner weight 21 is installed below the mounting block 23. The take-up device 22 is connected to the rounded corner weight 21 by a rope. A sliding groove 24 is provided on the side wall of the test box 1. The rounded corner weight 21 slides in the sliding groove 24 through a slider. Multiple buffer springs 25 are installed on the top of the partition 9. The buffer springs 25 are installed at the bottom of the rounded corner weight 21.

[0024] As attached Figure 3 As shown, the fixing mechanism 2 includes a first hydraulic telescopic rod 18 and a rotating wheel 19. The fixed end of the first hydraulic telescopic rod 18 is fixedly connected to the bottom of the inner cavity of the test chamber 1. The telescopic end of the first hydraulic telescopic rod 18 is fixedly connected to a support plate 20. Rotating shafts are symmetrically arranged at both ends of the support plate 20, and rotating wheels 19 are sleeved on the rotating shafts.

[0025] As attached Figure 1 As shown, multiple sets of wheels 29 are provided below the base 26, and multiple electric hydraulic outriggers 30 are provided at the bottom of the base 26.

[0026] As attached Figure 1 Appendix Figure 2Appendix Figure 3 and attached Figure 8 As shown, a hanging shaft 31 is provided at one end of the partition 9, and a moving groove 32 is provided at the bottom of the test box 1. An auxiliary plate 33 is slidably fitted in the moving groove 32. A hook 11 is provided at one end of the auxiliary plate 33. A limit groove 34 is provided at one end of the moving groove 32, and a limit block 35 is slidably fitted in the limit groove 34.

[0027] As attached Figure 5 As shown, pressure sensor 12 is model MS5837.

[0028] In addition, this embodiment also provides a method for testing the draft of special vehicles, including: S1: Drive the wheel into the stationary mechanism 2.

[0029] S2: Add water to test chamber 1 to create the test environment.

[0030] S3: Activate wave generation mechanism 5 to simulate the impact of water waves on the vehicle's draft.

[0031] S4: Activate different first hydraulic telescopic rods 18 to simulate the impact of vehicle attitude changes on draft depth under different underwater environments. S5: Read the dynamic water pressure data of the pressure sensor 12 at the bottom of the vehicle, combine it with the density of water and gravitational acceleration to calculate the draft, and analyze the data after starting the vehicle to test the draft of the vehicle to calculate the draft of the vehicle.

[0032] The working principle of Example 1 is as follows: The device is stabilized and does not shift by activating the electric hydraulic outrigger 30. The baffle 37 is removed through the baffle groove 36, and the auxiliary plate 33 is removed through the sliding limit block 35. Then, the hook 11 is hung on the hanging shaft 31, allowing the vehicle to be steadily driven into the test box 1. The vehicle's wheels are positioned between the rotating wheels 19. The first hydraulic telescopic rod 18 is then activated to lift the vehicle, ensuring it does not shift after starting. The auxiliary plate 33 is removed by removing the hook 11, and then the baffle 37 is inserted back into the baffle groove 36. In step 36, to prevent water leakage, the compressed air rod 16 is removed from the placement slot 14 by pulling the handle 17, and then placed into the air chamber 8 to compress gas, causing the pneumatic rod 6 to rise and attach the bonding plate 7 to the bottom of the vehicle. The test is started by slowly adding water into the test chamber 1. The rounded corner weight 21 is lowered by releasing the retractor 22. After reaching the water surface, water ripples are created. The rounded corner weight 21 is buffered and decelerated by the buffer spring 25 and the water. The rounded corner weight 21 is reset by activating the retractor 22. The operation is repeated to achieve the effect of the vehicle being... The simulation of the impact of water wave impact is achieved by raising different first hydraulic telescopic rods 18 to simulate the effect of vehicle posture changes on test results when the vehicle is driving on uneven roads. Simultaneously, after the vehicle posture changes, the pneumatic rod 6 continues to raise the bonding plate 7 due to pressure. The bonding plate 7 is adaptively adjusted by the rotating ball 10, ensuring that the bonding plate 7 remains tightly attached to the bottom of the vehicle regardless of its angle. The pressure sensor 12 dynamically measures the water pressure on the bottom of the vehicle, and the draft is calculated by combining the water density and gravitational acceleration. The vehicle's draft is tested by starting the vehicle and measuring and analyzing the data in real time. This invention achieves the test of the vehicle's draft by setting up the fixing mechanism 2 to prevent the vehicle from shifting during startup, setting up the first hydraulic telescopic rod 18 to adjust the vehicle posture, setting up the detection mechanism 3 to attach the pressure sensor 12 to the bottom of the vehicle, setting up the pressure sensor 12 to detect and calculate the draft in real time, and setting up the wave generation mechanism 5 to simulate wave impact on the vehicle.

[0033] Example 2 Based on Example 1, as shown in the appendix Figure 1 and attached Figure 3 As shown, the bottom of the test box 1 is connected to the base 26 via a tilting mechanism 4. The tilting mechanism 4 includes a second hydraulic telescopic rod 27 and a third hydraulic telescopic rod 28. The stationary end of the second hydraulic telescopic rod 27 is sleeved on the top of the base 26, and the extended end of the second hydraulic telescopic rod 27 is sleeved on the bottom of the test box 1. The stationary end of the third hydraulic telescopic rod 28 is sleeved on the top of the base 26, and the third hydraulic telescopic rod 28 is fixedly connected to the extended side of the second hydraulic telescopic rod 27. This invention simulates the scenario of a vehicle going uphill and downhill in water by setting the tilting mechanism 4.

[0034] A method for testing the draft of a special vehicle, after S5, further includes S501: by adjusting the tilt mechanism 4 to simulate the effect of different slopes on the vehicle's draft when going uphill or downhill in water, data from three pressure sensors 12 located at the bottom of the vehicle (front, middle, and rear) are read, and data after the vehicle is started and has entered the water are read. The average data is analyzed to calculate the vehicle's draft.

[0035] In implementing this embodiment, by activating the second hydraulic telescopic rod 27 and the third hydraulic telescopic rod 28 on the front side of the vehicle, the front side of the vehicle is raised to simulate the state of the vehicle when going uphill. By detecting the data, the draft of the vehicle when going uphill is tested. By activating the second hydraulic telescopic rod 27 and the third hydraulic telescopic rod 28 on the rear side of the vehicle, the rear side of the vehicle is raised to simulate the state of the vehicle when going downhill. By detecting the data, the draft of the vehicle when going downhill is tested.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] Example 2 This embodiment describes The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A draft testing device for special vehicles, characterized in that, The test equipment includes: a test box (1), a fixing mechanism (2), a detection mechanism (3), an tilting mechanism (4), and a wave-making mechanism (5); The testing mechanism (3) includes a pneumatic rod (6), a bonding plate (7), and an air chamber (8). A partition (9) is provided inside the test box (1). An air chamber (8) is opened on the partition (9). Multiple pneumatic rods (6) are provided on the top of the partition (9). The air chamber (8) is connected to the pneumatic rods (6). A rotating ball (10) is provided above the pneumatic rods (6). The bonding plate (7) is rotatably fitted on the rotating ball (10). A pressure sensor (12) is provided on the bonding plate (7). A first limiting groove (13) is provided at one end of the air chamber (8). A placement groove (14) is provided on the side wall of the test box (1). A second limiting groove (15) is provided at one end of the placement groove (14). A compressed air rod (16) is placed in the placement groove (14).

2. The draft testing equipment for special vehicles as described in claim 1, characterized in that, One end of the compressed air rod (16) is provided with a pull handle (17), and the pull handle (17) is provided with anti-slip texture. A baffle groove (36) is opened on one side of the test box (1), and a baffle (37) is slidably fitted in the baffle groove (36).

3. The draft testing equipment for special vehicles as described in claim 1, characterized in that, The fixing mechanism (2) includes a first hydraulic telescopic rod (18) and a rotating wheel (19). The fixed end of the first hydraulic telescopic rod (18) is fixedly connected to the bottom of the inner cavity of the test box (1). The telescopic end of the first hydraulic telescopic rod (18) is fixedly connected to a support plate (20). The support plate (20) has rotating shafts symmetrically arranged at both ends, and the rotating wheel (19) is sleeved on the rotating shaft.

4. The draft testing equipment for special vehicles as described in claim 3, characterized in that, The wave-making mechanism (5) includes a rounded corner weight (21), a take-up device (22), and a mounting block (23); the top of the test box (1) is fixedly connected to the mounting block (23), and multiple take-up devices (22) are provided inside the mounting block (23). The rounded corner weight (21) is provided below the mounting block (23). The take-up device (22) is connected to the rounded corner weight (21) by a rope. The side wall of the test box (1) is provided with a sliding groove (24). The rounded corner weight (21) slides in cooperation with the sliding groove (24) through a slider. Multiple buffer springs (25) are provided on the top of the partition (9). The buffer springs (25) are provided at the bottom of the rounded corner weight (21).

5. The draft testing equipment for special vehicles as described in claim 4, characterized in that, The test box (1) is connected to a base (26) at the bottom via an angle mechanism (4). The angle mechanism (4) includes a second hydraulic telescopic rod (27) and a third hydraulic telescopic rod (28). The stationary end of the second hydraulic telescopic rod (27) is fitted onto the top of the base (26), and the extended end of the second hydraulic telescopic rod (27) is fitted onto the bottom of the test box (1). The stationary end of the third hydraulic telescopic rod (28) is fitted onto the top of the base (26), and the third hydraulic telescopic rod (28) is fixedly connected to the extended side of the second hydraulic telescopic rod (27).

6. The draft testing equipment for special vehicles as described in claim 5, characterized in that, Multiple sets of wheels (29) are provided below the base (26), and multiple electric hydraulic outriggers (30) are provided at the bottom of the base (26).

7. The draft testing equipment for special vehicles as described in claim 5, characterized in that, The partition (9) is provided with a hanging shaft (31) at one end, and the test box (1) is provided with a moving groove (32) at the bottom. An auxiliary plate (33) is slidably fitted in the moving groove (32). A hook (11) is provided at one end of the auxiliary plate (33). A limit groove (34) is provided at one end of the moving groove (32). A limit block (35) is slidably fitted in the limit groove (34).

8. The draft testing equipment for special vehicles as described in claim 1, characterized in that, The pressure sensor (12) is model MS5837.

9. A method for testing the draft of a special vehicle, characterized in that, The method is implemented based on the device of claim 5, and the method includes the following steps: Step S1: Drive the wheel into the fixing mechanism (2); Step S2: Add water to the test chamber (1) to create a test environment; Step S3: Start the wave generation mechanism (5) to simulate the impact of water waves on the vehicle's draft. Step S4: Activate different first hydraulic telescopic rods (18) to simulate the effect of vehicle attitude changes on draft in different underwater environments; Step S5: Read the pressure sensor (12) to dynamically measure the water pressure data at the bottom of the vehicle, combine the water density and gravitational acceleration to calculate the draft, and analyze the data after starting the vehicle to test the draft of the vehicle to calculate the draft of the vehicle.

10. The method for testing the draft of special vehicles as described in claim 9, characterized in that: Step S5 is followed by step S501: by adjusting the tilt mechanism (4), the influence of different slopes on the vehicle's draft is simulated when the vehicle is going uphill or downhill in the water. Data from three pressure sensors (12) located at the front, middle and rear of the vehicle are read. Data after the vehicle is started and the draft is read. The average data is analyzed to calculate the vehicle's draft.

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