An assembly vehicle and method for a fuel cell engine system

Abstract

This invention discloses an assembly vehicle and assembly method for a fuel cell engine system, relating to the field of fuel cell engine system assembly technology. The assembly vehicle includes a transport component, an adjustment component, and an assembly component. The assembly component includes two assembly seats, one of which is equipped with an assembly motor and an assembly frame, and the other assembly seat is rotatably connected to an assembly frame. Two assembly linkages connect the two assembly frames. The assembly motor synchronously drives the two assembly frames and the two assembly linkages to swing, thereby unloading the assembled fuel cell engine system. The adjustment component adjusts the distance between the two assembly seats and rotates the assembly component to adjust its mounting orientation on the transport component. This invention solves the problems of low adaptability and large space occupation in the prior art when transferring fuel cell engine systems between workstations on an assembly line.

Description

Technical Field

[0001] This invention relates to the field of fuel cell engine system assembly technology, and in particular to an assembly vehicle and assembly method for fuel cell engine systems. Background Technology

[0002] As a crucial component of clean energy, the assembly process of fuel cell engine systems involves multiple steps, including incoming material pretreatment, pre-assembly, standard assembly, testing, and off-line inspection. Because fuel cell engine systems are typically large and heavy, and contain multiple precision modules such as the fuel cell stack, hydrogen supply system, and cooling system, the transfer of fuel cell engine systems between different workstations on the assembly line becomes a critical link affecting production efficiency and product quality.

[0003] In existing technologies, the transfer of fuel cell engine systems mostly uses chain or roller conveyor lines, which are suitable for mass production of a single product, but lack flexibility and are difficult to adapt to the assembly needs of multi-variety, small-batch fuel cell engine systems; moreover, the track lines occupy a large space and have high modification costs.

[0004] Therefore, in the existing technology, fuel cell engine systems suffer from low compatibility and large space occupation during transfer operations between various workstations on the assembly line. Summary of the Invention

[0005] The purpose of this invention is to provide an assembly vehicle and assembly method for fuel cell engine systems, which solves the problems of low adaptability and large space occupation in the prior art when transferring fuel cell engine systems between workstations on the assembly line.

[0006] To achieve this objective, the present invention adopts the following technical solution: According to a first aspect, the present invention provides an assembly vehicle for a fuel cell engine system, including a transport component, an adjustment component, and an assembly component for carrying the fuel cell engine system in various assembly states. The transport component is used to move between various workstations in the assembly workshop with the assistance of an AGV vehicle. The assembly assembly includes two assembly seats arranged opposite each other. One of the assembly seats is equipped with an assembly motor and an assembly frame. The other assembly seat is rotatably connected to an assembly frame. Two assembly connecting rods are connected between the two assembly frames. The assembly frame is provided with a moving groove. At least one end of the assembly connecting rod is provided with a first stepped hole arranged in an elongated shape. A first locking screw that abuts against the moving groove is connected in the first stepped hole. The assembly motor is used to synchronously drive the two assembly frames and the two assembly linkages to swing, so as to unload the assembled fuel cell engine system; the adjustment component is used to adjust the distance between the two assembly seats and to rotate and adjust the mounting position of the assembly component on the transport component.

[0007] Optionally, the assembly frame includes a first assembly plate, with second assembly plates installed at both ends of the first assembly plate, and a third assembly plate fixedly connected to the end of the second assembly plate away from the first assembly plate. The movable slot is formed on the third assembly plate, and the first assembly plate, the second assembly plate, and the third assembly plate are distributed perpendicularly to each other.

[0008] Optionally, the first assembly plate has a second stepped hole arranged in an elongated shape, and a second locking screw that is threadedly connected to the second assembly plate is installed in the second stepped hole.

[0009] Optionally, the first mounting plate is arranged along the width direction of the fuel cell engine system, the second mounting plate is arranged along the height direction of the fuel cell engine system, and the third mounting plate is arranged along the length direction of the fuel cell engine system.

[0010] Optionally, a speed reducer is also installed on one of the mounting bases. Both the speed reducer and the mounting motor are equipped with sprockets. A chain meshes on the two sprockets. The output shaft of the speed reducer is connected to one of the mounting frames. The direction of the center line connecting the two sprockets intersects with the height direction of the fuel cell engine system.

[0011] Optionally, the adjustment assembly includes an adjustment platform connected to the transport assembly, an adjustment frame rotatably connected to the adjustment platform, two mounting seats mounted on the adjustment frame, a locking block slidably connected to the adjustment frame for locking the adjustment frame to the adjustment platform, and a handle screw threadedly connected to the adjustment frame for abutting against the locking block.

[0012] Optionally, a first locking handle is threadedly connected to one of the mounting bases, a second locking handle is threadedly connected to the other mounting base, an adjusting rod is threadedly connected to the adjusting bracket, and an adjusting disc is fixedly installed at the end of the adjusting rod; The adjusting disc is used to drive the adjusting rod to rotate when the second locking handle is in the unlocked state, so that the adjusting rod drives one of the mounting seats to move linearly, thereby adjusting the distance between the two mounting frames.

[0013] Optionally, the transport component includes a transport base, with multiple transport wheels rotatably connected to the bottom of the transport base, and transport push rods installed at both ends of the transport base.

[0014] According to a second aspect, the present invention provides an assembly method for an assembly vehicle, applicable to an assembly vehicle for a fuel cell engine system as described in the first aspect, comprising: Step S1: According to the specific model and size of the fuel cell engine system to be assembled, adjust the distance between the two mounting seats by adjusting the assembly component, and rotate and adjust the orientation of the assembly component to adapt the assembly component to the fuel cell engine system. Step S2: By coordinating the movement of the transport components and the AGV vehicle, the assembly vehicle is transported to each assembly station, and the various modules of the fuel cell engine system are assembled on the assembly rack. Step S3: After assembly is completed, start the assembly motor to synchronously drive the two assembly racks and assembly linkages to swing, and unload the assembled fuel cell engine system from the assembly vehicle.

[0015] Optionally, the assembly vehicle is equipped with a control component, which includes a controller electrically connected to the adjustment component and a sensor group for detecting the position and attitude of the fuel cell engine system; In step S2, when assembling the various modules of the fuel cell engine system onto the assembly rack, the sensor group detects the current assembly status in real time. If the center of gravity shift of the fuel cell engine system is detected to exceed a preset threshold, the controller controls the adjustment component to fine-tune the distance between the two assembly seats or controls the assembly motor to fine-tune the swing angle of the assembly rack to compensate for the center of gravity shift and keep the fuel cell engine system stable.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention provides an assembly vehicle and assembly method for fuel cell engine systems. By mounting assembly components on transport components and utilizing the transport components in conjunction with AGVs, the assembly vehicle achieves autonomous and flexible movement between workstations in the assembly workshop. This significantly improves the flexibility of the production line, enabling rapid adaptation to the mixed-line production needs of multiple varieties and small batches of fuel cell engine systems. Furthermore, it eliminates the need for track laying, effectively reducing workshop floor space and modification costs. Through adjustable components, the distance between the two assembly seats can be flexibly adjusted according to the specific model and size of the fuel cell engine system, thereby adapting to the load-bearing and positioning requirements of different specifications of fuel cell stacks, hydrogen supply systems, or cooling systems, greatly improving the versatility and adaptability of the assembly vehicle. By using an assembly motor to synchronously drive the two assembly racks and assembly linkages to swing, the heavy engine system can be smoothly unloaded from the assembly vehicle upon completion of assembly or when it needs to be removed from the line. This reduces the labor intensity of manual handling and avoids damage caused by improper manual operation, effectively ensuring the assembly quality of the product. Therefore, this invention solves the problems of low adaptability and large space occupation in the prior art when transferring fuel cell engine systems between workstations on the assembly line. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0019] Figure 1 A three-dimensional structural schematic diagram of an assembly vehicle for a fuel cell engine system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of a first partial structure of an assembly vehicle for a fuel cell engine system provided in an embodiment of the present invention; Figure 3 This is a partial structural diagram of an assembly component in an assembly vehicle for a fuel cell engine system, provided as an embodiment of the present invention. Figure 4This is a schematic diagram of a second partial structure of an assembly vehicle for a fuel cell engine system provided in an embodiment of the present invention; Figure 5 for Figure 4 A magnified structural diagram at point A; Figure 6 This is a schematic diagram of the structure of a transport component in an assembly vehicle for a fuel cell engine system, provided by an embodiment of the present invention. Figure 7 This is a flowchart illustrating an assembly method for an assembly vehicle provided in an embodiment of the present invention.

[0020] Illustration: 10. Transport component; 11. Transport base; 12. Transport wheel; 13. Transport push rod; 20. Adjustment component; 21. Adjustment platform; 22. Adjustment frame; 23. Locking block; 24. Handle screw; 25. First locking handle; 26. Second locking handle; 27. Adjustment rod; 28. Adjustment disc; 30. Assembly component; 31. Assembly base; 32. Assembly motor; 33. Assembly frame; 331. First assembly plate; 3311. Second step hole; 332. Second assembly plate; 333. Third assembly plate; 3331. Moving slot; 34. Assembly connecting rod; 341. First step hole; 35. First locking screw; 36. Second locking screw; 37. Reducer; 38. Sprocket; 39. Chain; 100. Fuel cell engine system. Detailed Implementation

[0021] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] The first aspect of this invention provides an assembly vehicle for a fuel cell engine system 100, such as... Figures 1 to 6 As shown, it includes a transport component 10, an adjustment component 20, and an assembly component 30 for carrying the fuel cell engine system 100 in various assembly states. The transport component 10 is used to move between various workstations in the assembly workshop with the assistance of an AGV vehicle. The assembly assembly 30 includes two assembly seats 31 arranged opposite to each other. One assembly seat 31 is equipped with an assembly motor 32 and an assembly frame 33. The other assembly seat 31 is rotatably connected to an assembly frame 33. Two assembly connecting rods 34 are connected between the two assembly frames 33. The assembly frame 33 is provided with a moving groove 3331. At least one end of the assembly connecting rod 34 is provided with a first stepped hole 341 arranged in an elongated shape. A first locking screw 35 is engaged in the first stepped hole 341 and abuts against the moving groove 3331. The assembly motor 32 is used to synchronously drive the two assembly racks 33 and the two assembly linkages 34 to swing, so as to unload the assembled fuel cell engine system 100; the adjustment component 20 is used to adjust the distance between the two assembly seats 31 and to rotate and adjust the mounting position of the assembly component 30 on the transport component 10. In this embodiment, the AGV vehicle (not shown) is a well-known device in the field of automation, and will not be described in detail here.

[0025] It should be noted that the assembly vehicle for a fuel cell engine system 100 provided by this invention, by setting the assembly component 30 on the transport component 10 and utilizing the transport component 10 in conjunction with an AGV vehicle, enables the assembly vehicle to move autonomously and flexibly between workstations in the assembly workshop. This significantly improves the flexibility of the production line, allowing it to quickly adapt to the mixed-line production needs of multiple varieties and small batches of fuel cell engine systems 100, without the need for laying tracks, effectively reducing the workshop floor space and modification costs. Through the adjustable component 20, the distance between the two assembly seats 31 can be flexibly adjusted according to the specific model and size of the fuel cell engine system 100, thereby adapting to the load-bearing and positioning requirements of different specifications of fuel cell stacks, hydrogen supply systems, or cooling systems, greatly improving the versatility and adaptability of the assembly vehicle. By using the assembly motor 32 to synchronously drive the two assembly racks 33 and the assembly connecting rod 34 to swing, the heavy engine system can be smoothly unloaded from the assembly vehicle when assembly is completed or when it needs to be removed from the line, reducing the labor intensity of manual handling and avoiding damage caused by improper manual operation, effectively ensuring the assembly quality of the product. Therefore, the present invention solves the problems of low adaptability and large space occupation of the fuel cell engine system 100 during the transfer operation between various workstations on the assembly line in the prior art.

[0026] like Figure 2 and Figure 3As shown, the assembly frame 33 includes a first assembly plate 331, with a second assembly plate 332 installed at both ends of the first assembly plate 331, and a third assembly plate 333 fixedly connected to the end of the second assembly plate 332 away from the first assembly plate 331. The movable groove 3331 is formed on the third assembly plate 333, and the first assembly plate 331, the second assembly plate 332 and the third assembly plate 333 are distributed perpendicularly to each other. The first assembly plate 331 has a second stepped hole 3311 arranged in an elongated shape, and a second locking screw 36 that is threadedly connected to the second assembly plate 332 is installed in the second stepped hole 3311.

[0027] In practical implementation, the mutually perpendicular "U"-shaped or frame-shaped structure allows the assembly frame 33 to form a three-dimensional support frame, enabling multi-faceted support and positioning of the precision modules (such as the fuel cell stack) of the fuel cell engine system 100 from the sides and bottom, ensuring load-bearing stability and preventing shaking or tilting during transport. By setting the second step hole 3311 and the second locking screw 36, the positions of the second assembly plate 332 and the third assembly plate 333 relative to the first assembly plate 331 are adjustable. In practical applications, operators can flexibly adjust the span between the two third assembly plates 333 according to the actual dimensional differences in the width direction of different modules of the fuel cell engine system 100 (such as the hydrogen supply system and the cooling system), thereby further expanding the assembly vehicle's adaptability to different product specifications. Simultaneously, the structure of the elongated hole and screw locking is simple and reliable, facilitating quick disassembly and adjustment by operators, improving the flexibility and efficiency of assembly operations.

[0028] like Figure 3 As shown, the first mounting plate 331 is arranged along the width direction of the fuel cell engine system 100, the second mounting plate 332 is arranged along the height direction of the fuel cell engine system 100, and the third mounting plate 333 is arranged along the length direction of the fuel cell engine system 100.

[0029] In practical implementation, this directional arrangement ensures that the overall structure of the assembly rack 33 closely matches the external contour and internal module layout of the fuel cell engine system 100: the first assembly plate 331 serves as a basic support, spanning across the width direction to provide a stable load-bearing foundation for the entire assembly rack 33; the second assembly plate 332 stands vertically along the height direction, effectively limiting and protecting the sides of taller modules (such as the fuel cell stack or cooling system) in the fuel cell engine system 100, preventing lateral tipping or collisions during transport; the third assembly plate 333 extends along the length direction, and its movable slot 3331 is arranged precisely along the length direction of the engine system, allowing the assembly linkage 34 to flexibly adjust its position in the length direction to accommodate engine systems of different lengths. This directional layout in three-dimensional space enables the assembly rack 33 to achieve comprehensive adaptation and stable load-bearing of the fuel cell engine system 100 in the width, height, and length dimensions while maintaining a compact structure, further improving the compatibility of the assembly vehicle with different product models and the safety during transport.

[0030] like Figure 1 and Figure 2 As shown, a reducer 37 is also installed on one of the mounting bases 31. Both the reducer 37 and the mounting motor 32 are equipped with sprockets 38. A chain 39 is meshed on the two sprockets 38. The output shaft of the reducer 37 is connected to one of the mounting frames 33. The direction of the center line connecting the two sprockets 38 intersects with the height direction of the fuel cell engine system 100.

[0031] In practical implementation, the use of sprockets 38 and chains 39 for transmission enables long-distance power transmission, allowing the assembly motor 32 to be flexibly positioned in a suitable location on the assembly base 31, avoiding interference between the assembly motor 32 and other structures and optimizing the spatial layout. Furthermore, the chain 39 transmission has a certain buffering and vibration-absorbing capacity, reducing the impact on the assembly frame 33 during the start-up, shutdown, or sudden load changes of the assembly motor 32, making the swinging motion of the assembly frame 33 more stable and reliable, thus protecting the fuel cell engine system 100 from vibration damage during unloading. Since the center line connecting the two sprockets 38 intersects with the height direction of the fuel cell engine system 100, this non-parallel, intersecting arrangement fully utilizes the horizontal space of the assembly vehicle, effectively avoiding excessive extension of the transmission system in the height direction, lowering the overall center of gravity of the vehicle, and improving the driving stability of the AGV during transport. Simultaneously, this arrangement allows the output shaft of the reducer 37 to transmit power to the assembly frame 33 at a more reasonable angle, reducing energy loss and off-center wear during transmission, and improving transmission efficiency and service life.

[0032] like Figures 1 to 5As shown, the adjustment assembly 20 includes an adjustment platform 21 connected to the transport assembly 10. An adjustment frame 22 is rotatably connected to the adjustment platform 21. Two mounting bases 31 are mounted on the adjustment frame 22. A locking block 23 for locking the adjustment frame 22 onto the adjustment platform 21 is slidably connected to the adjustment frame 22. A handle screw 24 for abutting against the locking block 23 is threaded onto the adjustment frame 22.

[0033] In practice, by integrating the assembly base 31 onto the rotatable adjustment frame 22, the entire assembly component 30 can rotate horizontally relative to the transport component 10. This allows operators to flexibly adjust the orientation of the engine system according to the workstation layout and operational needs when the fuel cell engine system 100 is transferred to different workstations, improving the convenience and adaptability of the assembly operation. When the orientation of the assembly component 30 needs to be adjusted, the operator simply loosens the handle screw 24, releasing the locking block 23 from its pressure on the adjustment table 21, allowing the adjustment frame 22 to rotate freely. After adjustment, the handle screw 24 is tightened, causing it to push the locking block 23 to slide on the adjustment frame 22, pressing the locking block 23 tightly against the adjustment table 21. Friction then securely locks the adjustment frame 22 onto the adjustment table 21.

[0034] like Figures 1 to 5 As shown, a first locking handle 25 is threadedly connected to one of the mounting bases 31, a second locking handle 26 is threadedly connected to the other mounting base 31, an adjusting rod 27 is threadedly connected to the adjusting bracket 22, and an adjusting disc 28 is fixedly installed at the end of the adjusting rod 27. The adjusting disc 28 is used to drive the adjusting rod 27 to rotate when the second locking handle 26 is in the unlocked state, so that the adjusting rod 27 drives one of the mounting seats 31 to move linearly, thereby adjusting the distance between the two mounting brackets 33.

[0035] In practice, by setting a first locking handle 25 and a second locking handle 26, the operator can independently lock or unlock the two assembly seats 31. When the spacing needs to be adjusted, simply loosen the corresponding locking handle to release the degree of freedom of the corresponding assembly seat 31, making the adjustment operation more flexible and controllable. After the adjustment is in place, tightening the locking handle will firmly lock the assembly seat 31 onto the adjustment frame 22, ensuring that the assembly seat 31 will not slide during subsequent transportation and assembly, thus guaranteeing the stability of the load-bearing capacity. By rotating the adjustment disc 28, the adjustment rod 27 can be driven to rotate, which in turn translates into linear movement of the assembly seat 31, realizing stepless and precise adjustment of the spacing between the two assembly frames 33. Compared to traditional plug-in or gear-type adjustments, this structure can more precisely adapt to the width dimensions of different specifications of fuel cell engine systems 100, improving the universality and compatibility of the assembled vehicle. At the same time, the design of the adjustment disc 28 increases the operating lever arm, making the adjustment process more labor-saving and convenient. In addition, by limiting the adjustment to the unlocked state of the second locking handle 26, an interlocking logic is formed, which avoids structural damage caused by forcibly rotating the adjustment rod 27 in the locked state, thus improving operational safety and structural reliability.

[0036] like Figure 1 and Figure 6 As shown, the transport assembly 10 includes a transport base 11, with multiple transport wheels 12 rotatably connected to the bottom of the transport base 11, and transport push rods 13 installed at both ends of the transport base 11.

[0037] In practical implementation, when the transport component 10 is used in conjunction with the AGV vehicle, the AGV vehicle can lift or tow the assembly vehicle to move autonomously between workstations, achieving automated transfer. When the AGV vehicle cannot cover a workstation or when manual fine-tuning is required, the operator can also directly push the assembly vehicle for short-distance movement, increasing the flexibility and adaptability of use. The transport push rod 13 provides a convenient operating interface for human-machine interaction: on the one hand, the operator can easily push the assembly vehicle to move or turn using the push rod, especially in confined spaces or when docking at workstations, where the push rod provides a good point of force and maneuverability; on the other hand, the push rod design at both ends allows the operator to easily operate the vehicle whether they are in front of or behind it, avoiding the inconvenience of having to detour and improving operational efficiency. In addition, the transport push rod 13 can also be used for auxiliary purposes such as binding and fixing ropes or hanging signs when the assembly vehicle is parked, further expanding its practical functions.

[0038] A second aspect of this invention provides an assembly method for an assembly vehicle, applicable to an assembly vehicle for a fuel cell engine system 100 as described in the first aspect, such as... Figure 7 As shown, it includes: Step S1: According to the specific model and size of the fuel cell engine system 100 to be assembled, adjust the distance between the two mounting seats 31 by adjusting the component 20, and rotate and adjust the orientation of the assembly component 30 so that the assembly component 30 can be adapted to the fuel cell engine system 100. Step S2: The assembly vehicle is transported to each assembly station by the movement of the transport component 10 in conjunction with the AGV vehicle, and the various modules of the fuel cell engine system 100 are assembled on the assembly rack 33. Step S3: After assembly is completed, start the assembly motor 32 to synchronously drive the two assembly frames 33 and the assembly connecting rod 34 to swing, and unload the assembled fuel cell engine system 100 from the assembly vehicle.

[0039] It should be noted that step S1 fully leverages the adjustability of the assembly vehicle structure, enabling the same assembly vehicle to quickly adapt to different specifications and models of fuel cell engine systems 100 without changing tooling or adjusting the production line. This significantly improves the flexible production capacity of the assembly line and the versatility of the equipment, solving the problem of frequent model changes in multi-variety and small-batch production modes. Step S2 organically combines automated logistics with manual assembly. AGVs are responsible for long-distance autonomous transport across workstations, reducing the handling burden on operators; operators can focus on module assembly at each workstation without needing to pay attention to the transport process. This "human-machine collaboration" operation mode ensures assembly accuracy and improves overall assembly efficiency, while avoiding the drawbacks of traditional rail lines, such as large space occupation and high modification costs. Step S3 uses mechanical power to replace manual handling, solving the problem of unloading difficulties caused by the large size and heavy weight of the fuel cell engine system 100. The synchronous drive design ensures that the engine system is subjected to balanced forces during unloading, avoiding the risk of bumps, tilting or falling caused by improper manual operation. It effectively protects the assembly quality of precision modules such as fuel cell stacks and hydrogen supply systems, and improves the safety and reliability of off-line operations.

[0040] like Figures 1 to 6 As shown, the assembly vehicle is equipped with a control assembly, which includes a controller (not shown) electrically connected to the adjustment assembly 20, and a sensor array (not shown) for detecting the position and attitude of the fuel cell engine system 100. In step S2, when assembling the various modules of the fuel cell engine system 100 onto the assembly rack 33, the sensor group monitors the current assembly status in real time. If the center of gravity shift of the fuel cell engine system 100 is detected to exceed a preset threshold, the controller controls the adjustment component 20 to fine-tune the distance between the two assembly seats 31 or controls the assembly motor 32 to fine-tune the swing angle of the assembly rack 33 to compensate for the center of gravity shift and maintain the stability of the fuel cell engine system 100. In this embodiment, the sensor group can be one or more of the following: a visual sensor, a laser rangefinder, a pressure sensor, a tilt sensor, and an ultrasonic sensor.

[0041] In practical implementation, by integrating sensor sets and controllers onto the assembly vehicle, the vehicle acquires environmental perception and intelligent decision-making capabilities, upgrading it from a traditional passive load-bearing tool to an intelligent equipment that actively participates in the assembly process, thus improving the overall level of automation. During the step-by-step assembly of the fuel cell engine system 100, as different weight modules such as the fuel cell stack, hydrogen supply system, and cooling system are installed sequentially, the overall center of gravity of the system continuously changes. By monitoring the center of gravity shift in real time through the sensor set and automatically performing fine-tuning compensation when it exceeds a threshold, the risk of the assembly vehicle tipping over due to excessive center of gravity shift can be effectively prevented, significantly improving the safety of the assembly process. By controlling the adjustment component 20 to fine-tune the spacing of the assembly seats 31 or controlling the assembly motor 32 to fine-tune the swing angle of the assembly frame 33, the fuel cell engine system 100 can always maintain the optimal assembly posture, ensuring the docking accuracy between modules, avoiding assembly difficulties or interface damage caused by posture deviations, and improving the assembly quality and consistency of the product. The controller automatically executes compensation actions based on sensor feedback information without manual intervention, reducing the burden on operators and avoiding improper adjustments due to human error. This adaptive adjustment capability enables the assembly vehicle to cope with changes in the center of gravity caused by different models and different assembly sequences, further enhancing the equipment's versatility and intelligence.

[0042] Working Principle: This invention provides an assembly vehicle and assembly method for a fuel cell engine system 100. By setting the assembly component 30 on the transport component 10 and utilizing the transport component 10 in conjunction with an AGV vehicle, the assembly vehicle can move autonomously and flexibly between workstations in the assembly workshop. This significantly improves the flexibility of the production line, enabling rapid adaptation to the mixed-line production needs of multiple varieties and small batches of fuel cell engine systems 100. Furthermore, it eliminates the need for laying tracks, effectively reducing workshop floor space and modification costs. The adjustable component 20 allows for flexible adjustment of the distance between the two assembly seats 31 according to the specific model and size of the fuel cell engine system 100, thereby adapting to the load-bearing and positioning requirements of different specifications of fuel cell stacks, hydrogen supply systems, or cooling systems, greatly improving the versatility and adaptability of the assembly vehicle. The assembly motor 32 synchronously drives the two assembly racks 33 and the assembly connecting rod 34 to swing, assisting in the smooth unloading of the heavy engine system from the assembly vehicle upon completion of assembly or when it needs to be removed from the line. This reduces the labor intensity of manual handling and avoids damage caused by improper manual operation, effectively ensuring the assembly quality of the product. Therefore, the present invention solves the problems of low adaptability and large space occupation of the fuel cell engine system 100 during the transfer operation between various workstations on the assembly line in the prior art.

[0043] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembly vehicle for a fuel cell engine system, characterized in that, It includes a transport component, an adjustment component, and an assembly component for carrying the fuel cell engine system in various assembly states. The transport component is used to move between various workstations in the assembly workshop with the assistance of an AGV vehicle. The assembly assembly includes two assembly seats arranged opposite each other. One of the assembly seats is equipped with an assembly motor and an assembly frame. The other assembly seat is rotatably connected to an assembly frame. Two assembly connecting rods are connected between the two assembly frames. The assembly frame is provided with a moving groove. At least one end of the assembly connecting rod is provided with a first stepped hole arranged in an elongated shape. A first locking screw that abuts against the moving groove is connected in the first stepped hole. The assembly motor is used to synchronously drive the two assembly frames and the two assembly linkages to swing, so as to unload the assembled fuel cell engine system; the adjustment component is used to adjust the distance between the two assembly seats and to rotate and adjust the mounting position of the assembly component on the transport component.

2. The assembly vehicle for a fuel cell engine system according to claim 1, characterized in that, The assembly frame includes a first assembly plate, with a second assembly plate installed at both ends of the first assembly plate, and a third assembly plate fixedly connected to the end of the second assembly plate away from the first assembly plate. The movable slot is formed on the third assembly plate, and the first assembly plate, the second assembly plate, and the third assembly plate are distributed perpendicularly to each other.

3. The assembly vehicle for a fuel cell engine system according to claim 2, characterized in that, The first assembly plate has a second stepped hole arranged in an elongated shape, and a second locking screw that is threadedly connected to the second assembly plate is installed in the second stepped hole.

4. The assembly vehicle for a fuel cell engine system according to claim 2, characterized in that, The first assembly plate is arranged along the width direction of the fuel cell engine system, the second assembly plate is arranged along the height direction of the fuel cell engine system, and the third assembly plate is arranged along the length direction of the fuel cell engine system.

5. The assembly vehicle for a fuel cell engine system according to any one of claims 1 to 4, characterized in that, One of the mounting bases is also equipped with a speed reducer. Both the speed reducer and the assembly motor are equipped with sprockets. A chain meshes on the two sprockets. The output shaft of the speed reducer is connected to one of the mounting frames. The direction of the center line connecting the two sprockets intersects with the height direction of the fuel cell engine system.

6. The assembly vehicle for a fuel cell engine system according to claim 1, characterized in that, The adjustment assembly includes an adjustment platform connected to the transport assembly, an adjustment frame rotatably connected to the adjustment platform, two mounting seats mounted on the adjustment frame, a locking block slidably connected to the adjustment frame for locking the adjustment frame to the adjustment platform, and a handle screw threadedly connected to the adjustment frame for abutting against the locking block.

7. The assembly vehicle for a fuel cell engine system according to claim 6, characterized in that, One of the mounting bases is threaded with a first locking handle, and the other mounting base is threaded with a second locking handle. An adjusting rod is threaded onto the adjusting bracket, and an adjusting disc is fixedly installed at the end of the adjusting rod. The adjusting disc is used to drive the adjusting rod to rotate when the second locking handle is in the unlocked state, so that the adjusting rod drives one of the mounting seats to move linearly, thereby adjusting the distance between the two mounting frames.

8. The assembly vehicle for a fuel cell engine system according to claim 1, 6, or 7, characterized in that, The transport component includes a transport base, with multiple transport wheels rotatably connected to the bottom of the transport base, and transport push rods installed at both ends of the transport base.

9. An assembly method for an assembly vehicle, applied to an assembly vehicle for a fuel cell engine system as described in any one of claims 1 to 8, characterized in that, include: Step S1: According to the specific model and size of the fuel cell engine system to be assembled, adjust the distance between the two mounting seats by adjusting the assembly component, and rotate and adjust the orientation of the assembly component to adapt the assembly component to the fuel cell engine system. Step S2: By coordinating the movement of the transport components and the AGV vehicle, the assembly vehicle is transported to each assembly station, and the various modules of the fuel cell engine system are assembled on the assembly rack. Step S3: After assembly is completed, start the assembly motor to synchronously drive the two assembly racks and assembly linkages to swing, and unload the assembled fuel cell engine system from the assembly vehicle.

10. The assembly method for the assembly vehicle according to claim 9, characterized in that, The assembly vehicle is equipped with a control component, which includes a controller electrically connected to the adjustment component, and a sensor group for detecting the position and attitude of the fuel cell engine system. In step S2, when assembling the various modules of the fuel cell engine system onto the assembly rack, the sensor group detects the current assembly status in real time. If the center of gravity shift of the fuel cell engine system is detected to exceed a preset threshold, the controller controls the adjustment component to fine-tune the distance between the two assembly seats or controls the assembly motor to fine-tune the swing angle of the assembly rack to compensate for the center of gravity shift and keep the fuel cell engine system stable.

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