New energy ship hybrid power common rail system operation test device

Abstract

The invention belongs to the technical field of vehicle and ship power testing, and particularly relates to a new energy ship hybrid power common rail system operation testing device which comprises a testing pool, a battery pack body is arranged in the testing pool, and a simulation testing assembly is arranged on the surface of the testing pool. The simulation test assembly comprises a sealing test push plate arranged in the test pool, a simulation test ship enabling water to fluctuate in the test pool through the sealing test push plate, a vehicle and ship test motor, a first rotating disc, a first rectangular frame, a first rotating shaft, a lower connecting rod, a second rectangular frame, an auxiliary rotating rod, a rectangular support and a second rotating shaft. Through cooperative operation of a mechanical structure, waves under different sea conditions are simulated in the test pool, impact is generated on the simulation test ship, the power output of the battery pack is changed, the charging and discharging performance and the working stability of the battery pack are tested, wave parameters can be adjusted, waves are eliminated through an inclined stop lever, water splashing is prevented through a protective cover, and the service life of the battery pack is prolonged. And the test effect and safety are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle and ship power testing, and in particular relates to an operation testing device for a hybrid power common rail system of a new energy ship. Background Art

[0002] With the promotion of energy conservation and emission reduction, the trend of electrification of vehicle and ship power is becoming more and more obvious. However, pure electric systems have problems such as long charging time, shortage of charging facilities, and short cruising range. Hybrid power systems can give full play to the power advantages of electric drive and have huge potential for energy conservation and emission reduction. Compared with pure electric systems, hybrid power systems have high energy density, low cost, high output power density and other advantages. Therefore, it is of great significance to develop hybrid powertrain systems for vehicles and ships;

[0003] After checking, the public announcement number: CN116296437B discloses a production line operation test device for a new energy hybrid system. This technology discloses "including a battery pack test unit, an engine test unit and a transmission mechanism. The battery pack on the battery pack test unit and the engine on the engine test unit drive the axle to rotate through the transmission mechanism. The end of the axle is used to cooperate with the connection to the dynamometer and other technical solutions. When different operating temperatures are applied to the battery pack, the power output of the battery pack is changed in a targeted manner, thereby testing the charging and discharging performance of the battery pack and the working stability of each component in the transmission mechanism at different speeds. ";

[0004] Although this technology is advanced to a certain extent, it still has obvious shortcomings for the special application scenarios of new energy ships. In the actual operation of new energy ships, the battery pack is usually placed inside the ship's box, which makes the temperature around the battery pack change relatively slowly, which is quite different from the land test environment. During the voyage, the ship is constantly subject to vibrations and impacts caused by factors such as waves and currents. Traditional testing equipment is difficult to generate waves of different frequencies, wave heights and directions, and cannot truly reflect the impact force on the battery pack under different sea conditions.

[0005] Therefore, a new energy ship hybrid common rail system operation test device is designed to solve the above problems. Summary of the invention

[0006] In order to solve the problems raised in the above background technology, the present invention provides a new energy ship hybrid common rail system operation test device, which can effectively solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a new energy ship hybrid common rail system operation test device, comprising a test cell, wherein a battery pack body is arranged inside the test cell;

[0008] A simulation test component is arranged on the surface of the test pool. The simulation test component includes a sealed test push plate arranged inside the test pool, a simulation test ship for causing water to fluctuate inside the test pool through the sealed test push plate, a vehicle and ship test motor, a first rotating disk, a first rectangular frame, a first rotating shaft, a lower connecting rod, a second rectangular frame, an auxiliary rotating rod, a rectangular bracket, and a second rotating shaft;

[0009] A variable-speed test component is arranged on one side of the test pool. The variable-speed test component includes a U-shaped clamping plate, a U-shaped bracket, a side plate, a third rotating shaft, a second rotating disk, a first synchronous pulley, a synchronous belt, a second synchronous pulley, an arc friction block, an inclined strut, a T-shaped plate, a rectangular plate, a spring, and a rectangular sliding rod for adjusting the intensity of water fluctuation inside the test pool;

[0010] A draft adjustment component is arranged inside the test pool. The draft adjustment component includes a square longitudinal rod, a counterweight frame plate, a rectangular pipe sleeve, an internal insertion rod, and a connecting plate for adjusting the draft depth of the simulation test ship.

[0011] Preferably, as a new energy ship hybrid common rail system operation test device of the present invention, a rectangular bracket is arranged above the test pool. A lower connecting rod is inserted into a lower slot opened on the bottom surface of the rectangular bracket. The lower connecting rod is slidably connected to the rectangular bracket. A second rotating shaft is fixedly connected inside the lower connecting rod. A sealed test push plate is inserted into the test pool. A second U-shaped clamping block is fixedly connected to the surface of the sealed test push plate. An auxiliary rotating rod is inserted into the second U-shaped clamping block. The auxiliary rotating rod is rotatably connected to the second U-shaped clamping block through a first pin shaft. A second rectangular frame is inserted into a groove opened at one end of the auxiliary rotating rod away from the second U-shaped clamping block. A first U-shaped clamping block is sleeved at one end of the second rectangular frame away from the auxiliary rotating rod. The first U-shaped clamping block is fixedly connected inside the test pool. Two ends of the second rectangular frame are respectively rotatably connected to the first U-shaped clamping block and the auxiliary rotating rod through a second pin shaft. The second rectangular frame is located in a slot opened at the bottom end of the lower connecting rod, and the second rotating shaft is located inside the second rectangular frame. The second rotating shaft is movably connected to the second rectangular frame.

[0012] Preferably, for an operation test device of a new energy ship hybrid power common rail system according to the present invention, a first rectangular frame is fixedly connected to the top end of the lower connecting rod. A first rotating shaft is inserted into the first rectangular frame, and the first rotating shaft is slidably connected to the first rectangular frame. A longitudinal mounting plate is fixedly connected to the upper surface of the test pool. A transverse mounting plate is fixedly connected to the surface of the longitudinal mounting plate. A ship and vehicle test motor is mounted on the surface of the transverse mounting plate. One end of the output shaft of the ship and vehicle test motor is fixedly connected to a first rotating disk. One end of the first rotating shaft is fixedly connected to the first rotating disk. An upper connecting rod is inserted into an upper slot formed in the upper surface of the rectangular bracket, and the upper connecting rod is slidably connected to the rectangular bracket. The bottom end of the upper connecting rod is fixedly connected to the upper surface of the first rectangular frame.

[0013] Preferably, for an operation test device of a new energy ship hybrid power common rail system according to the present invention, a simulated test ship is arranged inside the test pool. A ship and vehicle test bracket is fixedly connected inside the simulated test ship. A ship and vehicle test support plate is fixedly connected to the inner bottom surface of the simulated test ship. The battery pack body is inserted into the ship and vehicle test bracket, and the bottom surface of the battery pack body is in contact with the surface of the ship and vehicle test support plate. A counterweight rod is arranged below the simulated test ship. The counterweight rod is inserted into a rod slot formed inside the test pool, and the counterweight rod is slidably connected to the test pool. A plurality of ship and vehicle test ropes are arranged between the counterweight rod and the simulated test ship. Two ends of each ship and vehicle test rope are respectively fixedly connected to the counterweight rod and the simulated test ship.

[0014] Preferably, for an operation test device of a new energy ship hybrid power common rail system according to the present invention, two T-shaped sliders are fixedly connected to the bottom surface of the rectangular bracket. The two T-shaped sliders are respectively inserted into two T-shaped chutes formed on one side of the test pool, and the T-shaped sliders are slidably connected to the test pool.

[0015] Preferably, for an operation test device of a new energy ship hybrid power common rail system according to the present invention, transverse limiting rods are respectively inserted into two through slots formed on the surface of the sealing test push plate. One end of each transverse limiting rod is fixedly connected to the test pool. The sealing test push plate is slidably connected to the transverse limiting rods, and the sealing test push plate is slidably and sealingly connected to the test pool.

[0016] Preferably, for an operation test device of a new energy ship hybrid power common rail system according to the present invention, a protective cover is fixedly connected to the upper surface of the test pool. A plurality of inclined blocking rods are equidistantly arranged inside the test pool. Two ends of each inclined blocking rod are respectively fixedly connected to the protective cover and the test pool.

[0017] Preferably, for an operating test device of a new energy ship hybrid common rail system according to the present invention, a bottom plate is fixedly connected to one side of the test pool. The upper surface of the bottom plate is fixedly connected with a U-shaped clamping plate and a U-shaped bracket. The U-shaped bracket is located between the U-shaped clamping plate and the test pool. A T-shaped plate is inserted into the interior of the U-shaped bracket. The T-shaped plate is slidably connected with the U-shaped bracket. A rectangular plate is arranged between the T-shaped plate and the U-shaped clamping plate. A plurality of springs are fixedly connected to the side of the rectangular plate close to the T-shaped plate. The ends of the springs away from the rectangular plate are fixedly connected to the T-shaped plate. A rectangular sliding rod is inserted into a rectangular slot opened on one side of the T-shaped plate. The rectangular sliding rod is slidably connected with the T-shaped plate. One end of the rectangular sliding rod is fixedly connected to the rectangular plate. A plurality of rotating rollers are installed inside the U-shaped clamping plate. The rotating rollers are rotatably connected with the U-shaped clamping plate. The surface of the rotating rollers is in contact with the surface of the rectangular plate. A third U-shaped clamping block is fixedly connected to the side of the T-shaped plate away from the rectangular plate. A fourth U-shaped clamping block is fixedly connected to one side of the rectangular bracket. The two ends of the inclined strut are respectively inserted into the interiors of the third U-shaped clamping block and the fourth U-shaped clamping block, and the two ends of the inclined strut are respectively rotatably connected to the interiors of the third U-shaped clamping block and the fourth U-shaped clamping block through shaft pins. An upper pull rod is fixedly connected to the upper surface of the T-shaped plate.

[0018] Preferably, for an operating test device of a new energy ship hybrid common rail system according to the present invention, side plates are respectively fixedly connected to both sides of the U-shaped bracket. Third rotating shafts are respectively inserted into rotating holes opened inside the two side plates. The third rotating shafts are rotatably connected with the side plates. A first synchronous wheel and a second rotating disc are sleeved on the surface of the third rotating shaft. The first synchronous wheel and the second rotating disc are both fixedly connected with the third rotating shaft. An arc-shaped friction block is fixedly connected to the circumferential surface of the second rotating disc. The first synchronous wheel and the second rotating disc are located between the two side plates. A second synchronous wheel is fixedly sleeved on the surface of the output shaft of the vehicle and ship test motor. The second synchronous wheel is located between the first rotating disc and the vehicle and ship test motor. A synchronous belt is sleeved on the surfaces of the first synchronous wheel and the second synchronous wheel, and the second synchronous wheel is in transmission connection with the first synchronous wheel through the synchronous belt.

[0019] Preferably, for an operating test device of a new energy ship hybrid common rail system according to the present invention, an internal insertion rod is fixedly connected to the interior of the test pool. A rectangular pipe sleeve is sleeved on the surface of the internal insertion rod. The rectangular pipe sleeve is slidably connected with the internal insertion rod. A square vertical rod is fixedly connected to the top end of the rectangular pipe sleeve. A plurality of weight frame plates are sleeved on the surface of the square vertical rod. The weight frame plates are slidably connected with the square vertical rod. A connecting plate is fixedly connected to the surface of the rectangular pipe sleeve. One end of the connecting plate away from the rectangular pipe sleeve is fixedly connected to a weight rod.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is scientific and reasonable, and it is safe and convenient to use:

[0021] 1. A simulation test component is provided, which is conducive to simulating waves under different sea conditions in the test pool through the coordinated operation of the mechanical structure, impacting the simulated test ship, causing changes in the power output of the battery pack, so as to test its charge and discharge performance and working stability. It can also adjust the wave parameters, use inclined rods to cancel waves, and use protective covers to prevent water splashing, improving the test effect and safety.

[0022] The operation of the vehicle and ship test motor drives the first rotating disk to rotate, causing the first rotating shaft to rotate and longitudinally move within the first rectangular frame. Through the lower connecting rod and the second rotating shaft, the second rectangular frame is driven to rotate, pulling or pushing the sealed test push plate to reciprocate within the test pool, causing the water body to produce periodic undulations to form waves. When simulating the test ship under wave impact, fluctuations are generated through the cooperation of the vehicle and ship test pull rope and the counterweight rod, causing the battery pack body to vibrate, thereby causing targeted changes in the power output of the battery pack.

[0023] The equally spaced inclined rods can make the reflected waves of the water waves interfere and cancel each other, reducing the amplitude of the water waves to achieve the purpose of wave cancellation, and the protective cover can prevent water splashing.

[0024] 2. A variable speed test component is provided. The operation of the vehicle and ship test motor drives the transmission of synchronous pulleys with different diameters. Through the arc friction block, the T-shaped plate is pushed, and the rectangular bracket is pulled to move through the inclined strut, adjusting the position of the second rotating shaft and changing the moving range of the sealed test push plate, realizing the adjustment of the wave frequency and wave height in the test pool, and meeting the requirements of different wave conditions for the battery pack performance test.

[0025] 3. A draft adjustment component is provided. By increasing or decreasing the weight frame plate, the pulling force on the simulated test ship is changed, and its draft depth is adjusted. Combined with wave impact, different load conditions of the simulated test ship are simulated to test the performance of the battery pack, improving the authenticity and reliability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0027] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 is of the present invention Figure 1 a cross-sectional view taken along line A-A in;

[0029] Figure 3 is of the present invention Figure 2 an enlarged view of A in;

[0030] Figure 4 is of the present invention Figure 2Enlarged view at B in the [Chinese context];

[0031] Figure 5 Structural schematic diagram of the counterweight rod and the vehicle and ship test pulling rope in the present invention;

[0032] Figure 6 Structural schematic diagram of the T-shaped slider and the rectangular bracket in the present invention;

[0033] Figure 7 Structural schematic diagram of the second rectangular frame and the auxiliary rotating rod in the present invention;

[0034] Figure 8 Structural schematic diagram of the inclined stop rod and the test pool in the present invention;

[0035] Figure 9 Structural schematic diagram of the U-shaped bracket and the T-shaped plate in the present invention;

[0036] Figure 10 Structural schematic diagram of the rectangular sliding rod and the rectangular plate in the present invention;

[0037] Figure 11 Structural schematic diagram of the second rotating disc and the arc friction block in the present invention;

[0038] Figure 12 Structural schematic diagram of the U-shaped clamping plate and the U-shaped bracket in the present invention;

[0039] Figure 13 Structural schematic diagram of the T-shaped plate and the inclined strut in the present invention;

[0040] Figure 14 Structural schematic diagram of the first synchronous pulley and the second rotating disc in the present invention;

[0041] In the figure:

[0042] 1. Test pool; 2. Battery pack body; 3. Simulation test component; 31. Vehicle and ship test support plate; 32. Vehicle and ship test bracket; 33. Simulation test ship; 34. Counterweight rod; 35. Vehicle and ship test pull rope; 36. Rod groove; 37. Rectangular bracket; 38. T-shaped slider; 39. T-shaped chute; 310. Longitudinal mounting plate; 311. Transverse mounting plate; 312. Vehicle and ship test motor; 313. First rotating disk; 314. First rectangular frame; 315. First rotating shaft; 316. Upper connecting rod; 317. Lower connecting rod; 318. Sealing test push plate; 319. First U-shaped block; 320. Second U-shaped block; 321. Auxiliary rotating rod; 322. Second rectangular frame; 323. Transverse limiting rod; 324. Second rotating shaft; 325. Upper slot; 326. Lower slot; 327. Protective cover; 328. Inclined stop rod; 4. Variable speed test component; 41. Base plate; 42. U-shaped clamping plate; 43. Rotating roller; 44. U-shaped bracket; 45. Side plate; 46. Third rotating shaft; 47. Second rotating disk; 48. First synchronous pulley; 49. Synchronous belt; 410. Second synchronous pulley; 411. Arc friction block; 412. Third U-shaped block; 413. Inclined support rod; 414. Fourth U-shaped block; 415. T-shaped plate; 416. Upper pull rod; 417. Rectangular plate; 418. Spring; 419. Rectangular sliding rod; 420. Rectangular slot; 5. Draft adjustment component; 51. Square longitudinal rod; 52. Counterweight frame plate; 53. Rectangular pipe sleeve; 54. Built-in insertion rod; 55. Connecting plate. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] Embodiment: As Figures 1 - 14 shown, the present invention provides a technical solution, a running test device for a new energy ship hybrid common rail system, including a test pool 1, and a battery pack body 2 is arranged inside the test pool 1;

[0045] A simulation test component 3 is arranged on the surface of the test pool 1. The simulation test component 3 includes a sealing test push plate 318, a vehicle and ship test support plate 31, a vehicle and ship test bracket 32, a simulation test ship 33, a counterweight rod 34, a vehicle and ship test pulling rope 35, a rectangular bracket 37, a T-shaped slider 38, a longitudinal mounting plate 310, a transverse mounting plate 311, a vehicle and ship test motor 312, a first rotating disk 313, a first rectangular frame 314, a first rotating shaft 315, a lower connecting rod 317, a first U-shaped block 319, a second U-shaped block 320, a protective cover 327, an inclined stop rod 328, a second rectangular frame 322, an auxiliary rotating rod 321 and a second rotating shaft 324. A rectangular bracket 37 is arranged above the test pool 1. A lower connecting rod 317 is inserted into a lower slot 326 opened on the bottom surface of the rectangular bracket 37. The lower connecting rod 317 is slidably connected with the rectangular bracket 37. A second rotating shaft 324 is fixedly connected inside the lower connecting rod 317. A sealing test push plate 318 is inserted into the test pool 1. A second U-shaped block 320 is fixedly connected to the surface of the sealing test push plate 318. An auxiliary rotating rod 321 is inserted into the second U-shaped block 320. The auxiliary rotating rod 321 is rotatably connected with the second U-shaped block 320 through a first pin shaft. A second rectangular frame 322 is inserted into a groove opened at one end of the auxiliary rotating rod 321 away from the second U-shaped block 320. A first U-shaped block 319 is sleeved at one end of the second rectangular frame 322 away from the auxiliary rotating rod 321. The first U-shaped block 319 is fixedly connected inside the test pool 1. Two ends of the second rectangular frame 322 are respectively rotatably connected with the first U-shaped block 319 and the auxiliary rotating rod 321 through second pin shafts. The second rectangular frame 322 is located in a slot opened at the bottom end of the lower connecting rod 317, and the second rotating shaft 324 is located inside the second rectangular frame 322. The second rotating shaft 324 is movably connected with the second rectangular frame 322.

[0046] The top end of the lower connecting rod 317 is fixedly connected with a first rectangular frame 314. A first rotating shaft 315 is inserted into the first rectangular frame 314. The first rotating shaft 315 is slidably connected with the first rectangular frame 314. A longitudinal mounting plate 310 is fixedly connected to the upper surface of the test pool 1. A transverse mounting plate 311 is fixedly connected to the surface of the longitudinal mounting plate 310. A vehicle and ship test motor 312 is mounted on the surface of the transverse mounting plate 311. The end of the output shaft of the vehicle and ship test motor 312 is fixedly connected with a first rotating disk 313. One end of the first rotating shaft 315 is fixedly connected with the first rotating disk 313. An upper connecting rod 316 is inserted into an upper slot 325 opened on the upper surface of the rectangular bracket 37. The upper connecting rod 316 is slidably connected with the rectangular bracket 37. The bottom end of the upper connecting rod 316 is fixedly connected with the upper surface of the first rectangular frame 314.

[0047] Inside the test pool 1, there is a simulated test ship 33. Inside the simulated test ship 33, there is a fixed connection of a vehicle and ship test support 32. On the inner bottom surface of the simulated test ship 33, there is a fixed connection of a vehicle and ship test support plate 31. The battery pack body 2 is inserted inside the vehicle and ship test support 32, and the bottom surface of the battery pack body 2 is in contact with the surface of the vehicle and ship test support plate 31. Below the simulated test ship 33, there is a counterweight rod 34. The counterweight rod 34 is inserted into a rod groove 36 opened inside the test pool 1. The counterweight rod 34 is slidably connected to the test pool 1. Between the counterweight rod 34 and the simulated test ship 33, there are multiple vehicle and ship test ropes 35. Both ends of the vehicle and ship test ropes 35 are fixedly connected to the counterweight rod 34 and the simulated test ship 33 respectively.

[0048] On the bottom surface of the rectangular support 37, there are two T-shaped sliders 38 fixedly connected. The two T-shaped sliders 38 are respectively inserted into two T-shaped chutes 39 opened on one side of the test pool 1. The T-shaped sliders 38 are slidably connected to the test pool 1.

[0049] Inside two through grooves opened on the surface of the seal test push plate 318, there are respectively inserted lateral limit rods 323. One end of the lateral limit rod 323 is fixedly connected to the test pool 1. The seal test push plate 318 is slidably connected to the lateral limit rod 323. The seal test push plate 318 is hermetically slidably connected to the test pool 1.

[0050] On the upper surface of the test pool 1, there is a protective cover 327 fixedly connected. Inside the test pool 1, there are multiple inclined blocking rods 328 arranged at equal intervals. Both ends of the inclined blocking rods 328 are fixedly connected to the protective cover 327 and the test pool 1 respectively.

[0051] A speed change test assembly 4 is provided on one side of the test pool 1, and the speed change test assembly 4 includes a bottom plate 41, a U-shaped card plate 42, a rotating roller 43, a U-shaped bracket 44, a side plate 45, a third rotating shaft 46, a second rotating disk 47, a first synchronous wheel 48, a synchronous belt 49, a second synchronous wheel 410, an arc-shaped friction block 411, a third U-shaped card block 412, an inclined support rod 413, a fourth U-shaped card block 414, a T-shaped plate 415, an upper pull rod 416, a rectangular plate 417, a spring 418 and A rectangular slide bar 419 is fixedly connected to one side of the test pool 1 with a bottom plate 41, and a U-shaped card plate 42 and a U-shaped bracket 44 are fixedly connected to the upper surface of the bottom plate 41. The U-shaped bracket 44 is located between the U-shaped card plate 42 and the test pool 1. A T-shaped plate 415 is inserted into the interior of the U-shaped bracket 44. The T-shaped plate 415 and the U-shaped bracket 44 are slidably connected. A rectangular plate 417 is arranged between the T-shaped plate 415 and the U-shaped card plate 42. A plurality of elastic A spring 418 is provided, and one end of the spring 418 away from the rectangular plate 417 is fixedly connected to the T-shaped plate 415. A rectangular slide bar 419 is inserted into a rectangular slot 420 opened on one side of the T-shaped plate 415. The rectangular slide bar 419 is slidably connected to the T-shaped plate 415. One end of the rectangular slide bar 419 is fixedly connected to the rectangular plate 417. A plurality of rotating rollers 43 are installed inside the U-shaped card plate 42. The rotating rollers 43 are rotatably connected to the U-shaped card plate 42. The surface of the rotating rollers 43 fits the surface of the rectangular plate 417. A third U-shaped block 412 is fixedly connected to one side of the T-shaped plate 415 away from the rectangular plate 417, a fourth U-shaped block 414 is fixedly connected to one side of the rectangular bracket 37, two ends of the inclined strut 413 are respectively inserted into the third U-shaped block 412 and the fourth U-shaped block 414, and the two ends of the inclined strut 413 are respectively rotatably connected to the third U-shaped block 412 and the fourth U-shaped block 414 through an axle pin, and an upper pull rod 416 is fixedly connected to the upper surface of the T-shaped plate 415.

[0052] The two sides of the U-shaped bracket 44 are fixedly connected with side plates 45 respectively, and the third rotating shaft 46 is respectively inserted into the rotating holes opened inside the two side plates 45, and the third rotating shaft 46 is rotatably connected to the side plates 45. The surface of the third rotating shaft 46 is sleeved with a first synchronous wheel 48 and a second rotating disk 47, and the first synchronous wheel 48 and the second rotating disk 47 are both fixedly connected to the third rotating shaft 46. The circumferential surface of the second rotating disk 47 is fixedly connected with an arc-shaped friction block 411. The first synchronous wheel 48 and the second rotating disk 47 are located between the two side plates 45. The surface of the output shaft of the vehicle and ship test motor 312 is fixedly sleeved with a second synchronous wheel 410, and the second synchronous wheel 410 is located between the first rotating disk 313 and the vehicle and ship test motor 312. The synchronous belt 49 is sleeved on the surfaces of the first synchronous wheel 48 and the second synchronous wheel 410, and the second synchronous wheel 410 is transmission-connected to the first synchronous wheel 48 through the synchronous belt 49.

[0053] Inside the test pool 1, a draft adjustment component 5 is provided. The draft adjustment component 5 includes a square longitudinal rod 51, a counterweight frame plate 52, a rectangular pipe sleeve 53, an internal insertion rod 54, and a connecting plate 55. The internal insertion rod 54 is fixedly connected inside the test pool 1. The surface of the internal insertion rod 54 is sleeved with a rectangular pipe sleeve 53. The rectangular pipe sleeve 53 and the internal insertion rod 54 are slidably connected. The top of the rectangular pipe sleeve 53 is fixedly connected with a square longitudinal rod 51. The surface of the square longitudinal rod 51 is sleeved with a plurality of counterweight frame plates 52. The counterweight frame plates 52 and the square longitudinal rod 51 are slidably connected. The surface of the rectangular pipe sleeve 53 is fixedly connected with a connecting plate 55. One end of the connecting plate 55 away from the rectangular pipe sleeve 53 is fixedly connected with a counterweight rod 34.

[0054] Working principle: The operation test device for the new energy ship hybrid common rail system further includes an engine test unit and a transmission mechanism. The battery pack on the battery pack test unit and the engine on the engine test unit drive the axle to rotate through the transmission mechanism. The end of the axle is used to cooperate with a dynamometer. Assemble the battery pack, engine, and transmission mechanism of the hybrid power system, so as to facilitate targeted changes in the power output of the battery pack when different working conditions are applied to the battery pack, and then test the charge and discharge performance of the battery pack and the working stability of each component in the transmission mechanism at different speeds, and check for possible safety defects in individual batches of battery packs and problems such as dynamic balance and abnormal noise that may exist in transmission components at specific speeds. Timely reprocess or replace the corresponding batches of hybrid system components to reduce the after-sales failure rate and recall risk of vehicles and ships. For specific details of this part, reference can be made to the production line operation test device for the new energy hybrid power system disclosed in Publication (Announcement) No. CN116296437B, which will not be elaborated here.

[0055] Before the test, place the test pool 1 on a flat ground, carefully install the battery pack body 2 on the vehicle and ship test bracket 32 inside the simulated test ship 33, ensure that its bottom surface is in close contact with the vehicle and ship test support plate 31, and connect the relevant circuit and sensor lines to monitor various performance parameters of the battery pack.

[0056] During the test, connect the vehicle and ship test motor 312 to an external power supply, start the vehicle and ship test motor 312 through an external controller. The operation of the vehicle and ship test motor 312 drives the first rotating disk 313 to rotate. The rotation of the first rotating disk 313 drives the first rotating shaft 315 to rotate with the output shaft of the vehicle and ship test motor 312 as the rotation axis. During the rotation of the first rotating shaft 315, it slides inside the first rectangular frame 314 and causes the first rectangular frame 314 to move longitudinally. The movement of the first rectangular frame 314 drives the lower connecting rod 317 and the upper connecting rod 316 to slide inside the rectangular bracket 37 respectively. The movement of the lower connecting rod 317 drives the second rotating shaft 324 to move longitudinally.

[0057] When the first rectangular frame 314 drives the second rotating shaft 324 to move upward, during the movement, the second rotating shaft 324 drives the second rectangular frame 322 to rotate inside the first U-shaped clamping block 319. When one end of the second rectangular frame 322 rotates inside the first U-shaped clamping block 319, the other end drives the auxiliary rotating rod 321 to rotate inside the second U-shaped clamping block 320, thereby pulling the sealing test push plate 318 to slide inside the test pool 1. When the first rectangular frame 314 drives the second rotating shaft 324 to move downward, it pushes the sealing test push plate 318 to slide inside the test pool 1. As the sealing test push plate 318 reciprocates inside the test pool 1, the sealing test push plate 318 applies a periodic thrust to the water body, causing the water body to have a periodic undulation, thus forming waves, making the water inside the test pool 1 generate waves, simulating the impact of waves on the simulated test ship 33 during the process of the simulated test ship 33 traveling in the sea. And as the waves impact the simulated test ship 33, the simulated test ship 33 fluctuates when being impacted by the waves. Under the pulling of the vehicle and ship test pulling rope 35 and the action of the gravity of the counterweight rod 34, the simulated test ship 33 can fluctuate with the impact of the waves, thereby simulating the impact of waves on the simulated test ship 33 during the process of the simulated test ship 33 traveling in the sea, causing the battery pack body 2 to vibrate, and further causing a targeted change in the power output of the battery pack body 2, testing the charge and discharge performance and working stability of the battery pack body 2, and detecting possible safety defects in individual batches of battery packs. It is beneficial to simulate waves under different sea conditions in the test pool 1 through the coordinated operation of the mechanical structure, impact the simulated test ship 33, cause changes in the power output of the battery pack, so as to test its charge and discharge performance and working stability, and can also adjust the wave parameters, and use the inclined baffle rod to eliminate waves and the protective cover to prevent water splashing, improving the test effect and safety;

[0058] The vehicle and ship test motor 312 operates to drive the first rotating disk 313 to rotate, causing the first rotating shaft 315 to rotate and longitudinally move inside the first rectangular frame 314. Through the lower connecting rod 317 and the second rotating shaft 324, it drives the second rectangular frame 322 to rotate, pulling or pushing the sealing test push plate 318 to reciprocate inside the test pool 1, making the water body have a periodic undulation to form waves. Simulating the simulated test ship 33 under the impact of waves, through the cooperation of the vehicle and ship test pulling rope 35 and the counterweight rod 34, it generates fluctuations, causing the battery pack body 2 to vibrate, thereby causing a targeted change in the power output of the battery pack;

[0059] During the process of simulating the impact of waves on the test ship 33 and adjusting the draft, various sensors installed on the battery pack body 2, such as acceleration sensors, temperature sensors, current sensors, voltage sensors, etc., collect the performance data of the battery pack in real time, including charge and discharge performance, output power stability, internal battery temperature changes, etc. The data acquisition module transmits this data to the control module and the data analysis module for real-time analysis to evaluate the performance status of the battery pack;

[0060] The acceleration sensor is installed on the outer shell surface of the battery pack body 2, and a position as close as possible to the center of gravity of the battery is preferably selected, so as to more accurately sense the acceleration change generated when the battery pack is impacted by waves. For example, it can be installed at the center positions of the four sides of the battery pack and fixed by a special ship and vehicle test bracket 32 to ensure a tight connection between the sensor and the battery pack and reduce the measurement error caused by loose installation. To comprehensively monitor the temperature distribution inside the battery pack, multiple temperature sensors are installed at different positions inside the battery pack, such as at key parts between battery modules and near the heat sinks of the battery pack. The temperature sensors are fixed at the corresponding positions by using thermal conductive glue or small clamps to obtain the temperature data of the battery under different working conditions in real time and determine whether there is an overheating risk for the battery. The current sensor is connected in series in the output circuit of the battery pack and is usually installed near the interface where the battery pack is connected to the external circuit to facilitate accurate measurement of the magnitude and direction changes of the current during the charging and discharging processes of the battery pack and timely grasp the charging and discharging state of the battery. The voltage sensor is connected in parallel across the positive and negative terminals of the battery pack and can be directly installed on the electrode terminal posts of the battery pack and connected to the data acquisition module through insulated wires to monitor the output voltage of the battery pack in real time and provide key data for evaluating the performance of the battery. Considering the stability and anti-interference of signal transmission, the data acquisition module is installed near various sensors, such as inside the equipment cabin of the simulated test ship 33, and is connected to each sensor through shielded wires to ensure that the sensor data can be collected quickly and accurately and transmitted to the control module and the data analysis module. The control module is generally installed at the control center position of the test device, such as inside a dedicated control cabinet, to facilitate the operator to set parameters and monitor the equipment. The control module is connected to devices such as the ship and vehicle test motor 312 and the data acquisition module through wired or wireless communication methods to realize the automatic control of the entire test process. The data analysis module is usually set in a computer device with good computing performance and data storage capacity. This computer can be placed in the monitoring room at the test site and perform data interaction with the data acquisition module and the control module through the network to perform real-time analysis and processing on the collected data and generate a detailed test report. After the above installation is completed, each sensor collects the performance data of the battery pack in real time, including charging and discharging performance, output power stability, and internal temperature change of the battery. The data acquisition module transmits these data to the control module and the data analysis module for real-time analysis to evaluate the performance status of the battery pack. The data analysis module deeply analyzes the collected data to determine whether there are problems such as abnormal charging and discharging and unstable output power in the battery pack. If problems are found, further analyze the causes of the problems, such as whether the internal structure of the battery pack is damaged due to impact. According to the analysis results, evaluate the corresponding hybrid system components to determine whether reprocessing or replacement is required to reduce the failure rate and recall risk during the actual operation of the ship;

[0061] When the water wave encounters the inclined baffle 328, the direction of the reflected wave will change. The equally spaced inclined baffles 328 will cause the reflected waves to interfere at specific positions. The reflected waves and the incident waves will cancel each other out, thereby reducing the amplitude of the water wave. The reflected waves and the incident waves may be out of phase in some areas, resulting in destructive interference to achieve the purpose of wave cancellation. And under the action of the protective cover 327, the problem of water splashing inside the test pool 1 under the action of the water wave is avoided, improving the use effect of the test device;

[0062] During this process, the output shaft of the vehicle and ship test motor 312 drives the first rotating disk 313 to rotate while driving the second synchronous pulley 410 to rotate synchronously. The rotation of the second synchronous pulley 410 drives the first synchronous pulley 48 to rotate. The diameter of the second synchronous pulley 410 is smaller than that of the first synchronous pulley 48. Therefore, under the action of the synchronous belt 49 transmission, the first synchronous pulley 48 rotates one circle only when the second synchronous pulley 410 rotates multiple circles. When the first synchronous pulley 48 rotates, it drives the third rotating shaft 46 to rotate, and then drives the second rotating disk 47 to rotate. The rotation of the second rotating disk 47 drives the arc friction block 411 to rotate. As the second rotating disk 47 and the arc friction block 411 rotate synchronously, when one end of the arc friction block 411 is in contact with the surface of the T-shaped plate 415, with the continuous rotation of the second rotating disk 47, the end of the arc friction block 411 applies a force to the T-shaped plate 415, causing the T-shaped plate 415 to slide inside the U-shaped bracket 44, that is, the T-shaped plate 415 moves towards the rectangular plate 417. As the T-shaped plate 415 moves, the spring 418 is compressed. And as the arc friction block 411 rotates, it drives the T-shaped plate 415 to slide upward inside the U-shaped bracket 44 until the arc friction block 411 moves away from the surface of the T-shaped plate 415. Under the action of the elastic potential energy of the spring 418, the T-shaped plate 415 and the surface of the U-shaped bracket 44 are closely attached, thereby achieving the effect of fixing the position of the T-shaped plate 415. During the upward movement of the T-shaped plate 415, it pulls the rectangular bracket 37 to slide on the surface of the test pool 1 through the inclined strut 413. During the movement of the rectangular bracket 37, the two T-shaped sliders 38 slide inside the T-shaped chutes 39 respectively, so that the rectangular bracket 37 can move horizontally. The movement of the rectangular bracket 37 drives the upper connecting rod 316 and the lower connecting rod 317 to move synchronously, and then makes the second rotating shaft 324 slide inside the second rectangular frame 322, that is, adjusts the position of the second rotating shaft 324. The different distances between the second rotating shaft 324 and the first U-shaped block 319 result in different rotation angles of the second rectangular frame 322 around the first U-shaped block 319. As the distance between the second rotating shaft 324 and the first U-shaped block 319 continuously decreases, the rotation angle range of the second rectangular frame 322 increases continuously. Then, the range of movement of the sealing test push plate 318 pulled by the auxiliary rotating rod 321 increases accordingly. Since the time taken for the first rotating disk 313 to rotate one circle remains unchanged, and the distance that the sealing test push plate 318 reciprocates within a fixed time changes, the parameters such as the movement frequency and amplitude of the sealing test push plate 318 determine the frequency and wave height of the waves inside the test pool 1. Thus, the waves inside the test pool 1 are accurately simulated, and the wave intensity inside the test pool 1 changes, which is beneficial to changing the frequency and wave height of the waves inside the test pool 1 during the process of testing the performance of the battery pack. Under the action of the waves, the ship model will be subjected to different degrees of impact force, and this impact force will be transmitted to the battery pack body 2 inside the simulated test ship 33.Observe the changes in the performance output of the battery pack body 2 under different wave impacts. Use the vehicle and ship test motor 312 to drive the transmission of synchronous pulleys with different diameters. Push the T-shaped plate 415 through the arc friction block 411, pull the rectangular bracket 37 through the inclined strut 413, adjust the position of the second rotating shaft 324, and change the moving range of the sealing test push plate 318 to achieve the adjustment of the wave frequency and wave height in the test pool, meeting the requirements of the battery pack performance test for different wave conditions;

[0063] By increasing or decreasing the number of counterweight frame plates 52 sleeved on the square longitudinal rod 51, as the force applied to the rectangular pipe sleeve 53 changes, the force applied by the rectangular pipe sleeve 53 to the counterweight rod 34 through the connecting plate 55 also changes accordingly. Then, the force applied to the simulated test ship 33 through the vehicle and ship test pull rope 35 changes. As the simulated test ship 33 is subjected to a downward force and changes, the draft depth of the simulated test ship 33 changes. Furthermore, when the weight carried by the simulated test ship 33 is different, the performance output of the battery pack body 2 under wave impact changes. According to the different draft depths of the simulated test ship 33 and combined with the performance output of the battery pack body 2 under wave impact, the authenticity of the hybrid common rail system operation test of the simulated test ship 33 is simulated. By increasing or decreasing the counterweight frame plates 52, the pulling force on the simulated test ship 33 is changed, its draft depth is adjusted, combined with wave impact, different load conditions of the simulated test ship 33 are simulated, and the battery pack performance is tested to improve the authenticity and reliability of the test;

[0064] After the test is completed, turn off the vehicle and ship test motor 312 and related equipment, check and maintain the test device, clean the sundries and water stains in the test pool 1, check whether the connections of each component are loose, especially the sealing performance between the sealing test push plate 318 and the test pool 1, the lubrication conditions of each rotating part, etc. If a fault occurs during the test, such as unstable wave generation, abnormal battery pack data acquisition, etc., it is necessary to troubleshoot according to the fault phenomenon. For example, if the wave generation is unstable, check the operating state of the vehicle and ship test motor 312, whether the synchronous belt 49 is loose, whether each transmission part is worn, etc. If the battery pack data acquisition is abnormal, check whether the connection of the sensor is normal, whether the sensor is damaged, whether there is a fault in the data transmission line, etc., and repair the fault in time to ensure that the test device can operate normally next time.

[0065] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A new energy ship hybrid common rail system operation test device, comprising a test cell (1), wherein a battery pack body (2) is arranged inside the test cell (1); Features: The surface of the test pool (1) is provided with a simulation test assembly (3), and the simulation test assembly (3) comprises a sealing test push plate (318) arranged inside the test pool (1), a simulation test ship (33) that causes water to fluctuate inside the test pool (1) through the sealing test push plate (318), a vehicle and ship test motor (312), a first rotating disk (313), a first rectangular frame (314), a first rotating shaft (315), a lower connecting rod (317), a second rectangular frame (322), an auxiliary rotating rod (321), a rectangular bracket (37), and a second rotating shaft (324); A speed change test assembly (4) is provided on one side of the test pool (1), and the speed change test assembly (4) comprises a U-shaped card plate (42) for adjusting the intensity of water fluctuations inside the test pool (1), a U-shaped bracket (44), a side plate (45), a third rotating shaft (46), a second rotating disk (47), a first synchronous wheel (48), a synchronous belt (49), a second synchronous wheel (410), an arc-shaped friction block (411), an inclined support rod (413), a T-shaped plate (415), a rectangular plate (417), a spring (418) and a rectangular sliding rod (419); A draft adjustment assembly (5) is arranged inside the test pool (1), and the draft adjustment assembly (5) comprises a square longitudinal rod (51) for adjusting the draft depth of the simulated test vessel (33), a counterweight frame plate (52), a rectangular pipe sleeve (53), a built-in plug rod (54) and a connecting plate (55).

2. The new energy ship hybrid common rail system operation test device according to claim 1 is characterized by: A rectangular bracket (37) is arranged above the test pool (1), a lower connecting rod (317) is inserted into a lower slot (326) provided on the bottom surface of the rectangular bracket (37), the lower connecting rod (317) and the rectangular bracket (37) are slidably connected, a second rotating shaft (324) is fixedly connected inside the lower connecting rod (317), a sealing test push plate (318) is inserted inside the test pool (1), a second U-shaped clamping block (320) is fixedly connected to the surface of the sealing test push plate (318), an auxiliary rotating rod (321) is inserted inside the second U-shaped clamping block (320), the auxiliary rotating rod (321) is rotatably connected to the second U-shaped clamping block (320) through a pin shaft 1, and the auxiliary rotating rod (321) is rotatably connected to the second U-shaped clamping block (320) through a pin shaft 1. 1) A second rectangular frame (322) is inserted into a groove opened at one end away from the second U-shaped clamping block (320); a first U-shaped clamping block (319) is sleeved on one end of the second rectangular frame (322) away from the auxiliary rotating rod (321); the first U-shaped clamping block (319) is fixedly connected to the inside of the test pool (1); two ends of the second rectangular frame (322) are rotatably connected to the first U-shaped clamping block (319) and the auxiliary rotating rod (321) through a second pin shaft; the second rectangular frame (322) is located in a slot opened at the bottom end of the lower connecting rod (317); the second rotating shaft (324) is located inside the second rectangular frame (322); and the second rotating shaft (324) and the second rectangular frame (322) are movably connected.

3. The new energy ship hybrid common rail system operation test device according to claim 1 is characterized by: The top end of the lower connecting rod (317) is fixedly connected to a first rectangular frame (314), a first rotating shaft (315) is inserted into the interior of the first rectangular frame (314), the first rotating shaft (315) and the first rectangular frame (314) are slidably connected, the upper surface of the test pool (1) is fixedly connected to a longitudinal mounting plate (310), the surface of the longitudinal mounting plate (310) is fixedly connected to a transverse mounting plate (311), and the surface of the transverse mounting plate (311) is mounted with a vehicle and vessel test The motor (312) is fixedly connected to the end of the output shaft of the vehicle and vessel test motor (312) with a first rotating disk (313), one end of the first rotating shaft (315) is fixedly connected to the first rotating disk (313), an upper connecting rod (316) is inserted into an upper slot (325) opened on the upper surface of the rectangular bracket (37), the upper connecting rod (316) is slidably connected to the rectangular bracket (37), and the bottom end of the upper connecting rod (316) is fixedly connected to the upper surface of the first rectangular frame (314).

4. The new energy ship hybrid common rail system operation test device according to claim 1 is characterized by: A simulated test ship (33) is arranged inside the test pool (1), a vehicle and ship test bracket (32) is fixedly connected inside the simulated test ship (33), a vehicle and ship test support plate (31) is fixedly connected to the inner bottom surface of the simulated test ship (33), the battery pack body (2) is inserted inside the vehicle and ship test bracket (32), and the bottom surface of the battery pack body (2) and the surface of the vehicle and ship test support plate (31) are in contact, a counterweight rod (34) is arranged below the simulated test ship (33), the counterweight rod (34) is inserted into a rod groove (36) provided inside the test pool (1), the counterweight rod (34) and the test pool (1) are slidably connected, a plurality of vehicle and ship test pull ropes (35) are arranged between the counterweight rod (34) and the simulated test ship (33), and the two ends of the vehicle and ship test pull ropes (35) are respectively fixedly connected to the counterweight rod (34) and the simulated test ship (33).

5. The new energy ship hybrid common rail system operation test device according to claim 1 is characterized by: Two T-shaped slide blocks (38) are fixedly connected to the bottom surface of the rectangular bracket (37), and the two T-shaped slide blocks (38) are respectively inserted into two T-shaped slide grooves (39) opened on one side of the test pool (1), and the T-shaped slide blocks (38) and the test pool (1) are slidably connected.

6. The new energy ship hybrid common rail system operation test device according to claim 1 is characterized by: Two through grooves formed on the surface of the sealing test push plate (318) are respectively inserted with transverse limiting rods (323); one end of the transverse limiting rod (323) is fixedly connected to the test pool (1); the sealing test push plate (318) and the transverse limiting rod (323) are slidably connected; and the sealing test push plate (318) and the test pool (1) are sealingly slidably connected.

7. The new energy ship hybrid common rail system operation test device according to claim 1 is characterized by: A protective cover (327) is fixedly connected to the upper surface of the test pool (1), a plurality of inclined blocking rods (328) are equidistantly arranged inside the test pool (1), and two ends of the inclined blocking rods (328) are respectively fixedly connected to the protective cover (327) and the test pool (1).

8. The new energy ship hybrid common rail system operation test device according to claim 1 is characterized by: A bottom plate (41) is fixedly connected to one side of the test pool (1); a U-shaped cardboard (42) and a U-shaped bracket (44) are fixedly connected to the upper surface of the bottom plate (41); the U-shaped bracket (44) is located between the U-shaped cardboard (42) and the test pool (1); a T-shaped plate (415) is inserted inside the U-shaped bracket (44); the T-shaped plate (415) and the U-shaped bracket (44) are slidably connected; the T-shaped plate (415) and the U-shaped cardboard are A rectangular plate (417) is arranged between the two sides of the T-shaped plate (42), a plurality of springs (418) are fixedly connected to a side of the rectangular plate (417) close to the T-shaped plate (415), an end of the spring (418) away from the rectangular plate (417) is fixedly connected to the T-shaped plate (415), a rectangular sliding rod (419) is inserted into a rectangular slot (420) opened on one side of the T-shaped plate (415), and the rectangular sliding rod (419) and the T-shaped plate (415) slide The U-shaped card plate (42) is connected to the rectangular plate (417), one end of the rectangular sliding rod (419) is fixedly connected to the rectangular plate (417), a plurality of rotating rollers (43) are installed inside the U-shaped card plate (42), the rotating rollers (43) and the U-shaped card plate (42) are rotationally connected, the surface of the rotating rollers (43) and the surface of the rectangular plate (417) are in contact with each other, the side of the T-shaped plate (415) away from the rectangular plate (417) is fixedly connected to the third U-shaped card block (412), one side of the rectangular bracket (37) is fixedly connected to the fourth U-shaped card block (414), the two ends of the inclined support rod (413) are respectively inserted into the third U-shaped card block (412) and the fourth U-shaped card block (414), and the two ends of the inclined support rod (413) are respectively rotationally connected to the third U-shaped card block (412) and the fourth U-shaped card block (414) through an axle pin, and the upper surface of the T-shaped plate (415) is fixedly connected to an upper pull rod (416).

9. The new energy ship hybrid common rail system operation test device according to claim 1 is characterized by: The two sides of the U-shaped bracket (44) are respectively fixedly connected with side plates (45), and the third rotating shaft (46) is respectively inserted into the rotating holes opened inside the two side plates (45), and the third rotating shaft (46) and the side plates (45) are rotatably connected. The surface of the third rotating shaft (46) is sleeved with a first synchronous wheel (48) and a second rotating disk (47), and the first synchronous wheel (48) and the second rotating disk (47) are both fixedly connected to the third rotating shaft (46), and the circumferential surface of the second rotating disk (47) is fixedly connected with an arc-shaped friction block ( 411), the first synchronous wheel (48) and the second rotating disk (47) are located between the two side plates (45), the surface of the output shaft of the vehicle and ship test motor (312) is fixedly sleeved with a second synchronous wheel (410), the second synchronous wheel (410) is located between the first rotating disk (313) and the vehicle and ship test motor (312), the synchronous belt (49) is sleeved on the surfaces of the first synchronous wheel (48) and the second synchronous wheel (410), and the second synchronous wheel (410) is connected to the first synchronous wheel (48) through the synchronous belt (49).

10. The new energy ship hybrid common rail system operation test device according to claim 1, characterized in that: The interior of the test pool (1) is fixedly connected with a built-in plug rod (54), the surface of the built-in plug rod (54) is sleeved with a rectangular tube sleeve (53), the rectangular tube sleeve (53) and the built-in plug rod (54) are slidably connected, the top of the rectangular tube sleeve (53) is fixedly connected with a square longitudinal rod (51), the surface of the square longitudinal rod (51) is sleeved with a plurality of counterweight frame plates (52), the counterweight frame plates (52) and the square longitudinal rod (51) are slidably connected, the surface of the rectangular tube sleeve (53) is fixedly connected with a connecting plate (55), and one end of the connecting plate (55) away from the rectangular tube sleeve (53) is fixedly connected to the counterweight rod (34).

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