Hydrogen supply system for hydrogen energy trucks

Abstract

This application discloses a hydrogen supply system for hydrogen energy trucks, including a hydrogen module carrier and hoist equipment, the hydrogen module carrier for carrying replacement and used hydrogen modules, the hoist equipment including main slide rails, a gantry, a top frame and a hoist locking device, the main slide rails for fixing to the ground, the gantry slidably mounted on two parallel main slide rails, the gantry is provided with a longitudinal drive mechanism for driving the gantry to move longitudinally, the top frame is slidably mounted on the top of the gantry, the top frame is provided with a lateral drive mechanism for driving the top frame to move laterally, and the hoist locking device is mounted on the top frame, and when the hydrogen module carrier and hydrogen energy truck are parked in the hydrogen exchange work area, the orientation of the front of both the hydrogen module carrier and hydrogen energy truck when parked is along the longitudinal direction. This application contributes to replenishing hydrogen energy in a hydrogen energy truck by directly replacing hydrogen modules and ensuring safe operation.

Description

[Technical Field]

[0001] The present application relates to the field of vehicle energy supply, in particular to a hydrogen supply system for hydrogen energy trucks. [Background Art]

[0002] A hydrogen vehicle is a vehicle that uses hydrogen as energy, and drives the vehicle by converting chemical energy generated through hydrogen reaction into mechanical energy. Hydrogen vehicles have advantages such as low greenhouse gas emissions, short refueling time, and long cruising range, making them suitable for medium- and long-distance transportation or heavy cargo transportation.

[0003] As a new type of heavy cargo transportation vehicle, hydrogen energy trucks are more environmentally friendly compared to diesel-fueled trucks, and have the advantages of shorter energy replenishment time and larger load capacity compared with pure electric tractor-type trucks.

[0004] In the prior art, the fuel replenishment method for hydrogen energy trucks is generally on-site hydrogen filling. In the process of hydrogen energy filling, a small amount of hydrogen gas leakage is inevitably possible, and there are safety risks in places such as mines. [Summary of the Invention] [Problem to be Solved by the Invention]

[0005] In order to reduce the safety risk in the fuel replenishment process of hydrogen energy trucks, the present application provides a hydrogen supply system for hydrogen energy trucks. [Means for Solving the Problem]

[0006] The hydrogen supply system for a hydrogen energy truck according to the present application adopts the following technical solutions.

[0007] A hydrogen supply system for a hydrogen energy truck includes a hydrogen module carrier and hoist equipment, the hydrogen module carrier being for carrying replacement and used hydrogen modules, the hoist equipment including a main slide rail, a gantry, a top frame and a hoist locking device, the main slide rail being for fixing to the ground, the gantry being slidably mounted on two parallel main slide rails, the sliding direction of the gantry being defined as the longitudinal direction, the gantry being equipped with a longitudinal drive mechanism for driving the gantry to move in the longitudinal direction, and the top frame The hoist is slidably mounted on the top of the gantry, the sliding direction of the top frame is defined as the lateral direction, a lateral drive mechanism is mounted on the top frame to drive the top frame to move laterally, the hoist lock device is attached to the top frame, the hoist lock device is for gripping, lifting, and transporting the hydrogen module, the area between the two main slide rails is defined as the hydrogen exchange work area, and when the hydrogen module transport vehicle and hydrogen energy truck are parked in the hydrogen exchange work area, the orientation of the front of the vehicle when parked is aligned with the longitudinal direction.

[0008] By employing the above technical solution, the hydrogen module transport vehicle equipped with replacement hydrogen modules is parked in the hydrogen exchange work area, which is located in the mounting area for the hoist equipment. The gantry of the hoist equipment is movable vertically, and the top frame of the hoist equipment is movable horizontally. When hydrogen energy replenishment of the hydrogen energy truck is required, the hydrogen energy truck is driven to the hydrogen exchange work area and kept in the same orientation as the hydrogen module transport vehicle. Then, the hoist lock device of the hoist equipment is moved above the hydrogen energy truck, and the used hydrogen module is lifted and removed using the hoist lock device. Next, the hoist lock device is moved above the hydrogen module transport vehicle, and the replacement hydrogen module is lifted and installed on the hydrogen energy truck. In the above process, since hydrogen energy is replenished in the hydrogen energy truck by directly replacing the hydrogen module, hydrogen gas leakage is less likely to occur, and safe operation can be guaranteed. Furthermore, in cases where a nearby hydrogen gas station cannot be built for safety reasons, replenishing hydrogen energy by replacing hydrogen modules reduces the distance hydrogen energy trucks need to travel to refuel, contributing to time savings and improved efficiency.

[0009] Optionally, the main slide rail includes a longitudinal rail and a support truss, the support truss includes a steel beam and a plurality of support legs, the steel beam is installed along the longitudinal direction, the longitudinal rail is fixed to the top of the steel beam along the longitudinal direction, the plurality of support legs are spaced apart along the longitudinal direction, the support legs include a vertical support rod and an inclined support rod, the vertical support rod is located directly below the steel beam, the upper end of the inclined support rod is connected to the upper end of the vertical support rod, and the lower end of the inclined support rod and the vertical support rod are offset laterally.

[0010] By employing the above technical solution, the longitudinal rails are attached to the steel beams of the support truss, maintaining a sufficient height difference between the longitudinal rails and the ground, which helps to reduce dust contamination of the surface of the longitudinal rails. Both the vertical support rods and the inclined support rods and the ground enclose a triangular area, and since the triangular structure is highly stable, it contributes to ensuring the structural stability of the support legs.

[0011] Optionally, limit blocks are provided at both ends of the steel beam, the limit blocks are for restricting the vertical movement stroke of the gantry, the vertical distribution range of multiple sets of support legs is located between the end faces of the steel beam, and diagonal support rods are provided on the vertical support rods of the support legs close to the ends of the steel beam, one end of the diagonal support rod is connected to the corresponding vertical support rod, and the other end of the diagonal support rod is connected to the end of the steel beam.

[0012] By employing the above technical solution, the limit block can restrict the movement stroke of the gantry. When the gantry collides with the limit block, a large impact force is applied to the end of the support truss. However, by installing diagonal support rods, the structural stability of the end of the support truss can be improved, making the support truss less susceptible to deformation due to the gantry collision.

[0013] As an option, the body of the hydrogen module transport vehicle is provided with a plurality of mounting quick-change mechanisms for positioning replacement hydrogen modules or used hydrogen modules, and the plurality of mounting quick-change mechanisms are arranged at equal intervals along the length of the body of the hydrogen module transport vehicle.

[0014] By employing the above technical solution, the hydrogen module is attached to the loading area of ​​the hydrogen module transport vehicle via a quick-change mounting mechanism. This ensures that the hydrogen module's position is stably maintained, and the hydrogen module is less susceptible to damage from vehicle pitching during transport.

[0015] As an option, the loading area of ​​the hydrogen module transport vehicle's body is divided into multiple unit loading areas, each unit loading area corresponds to one of the mounting quick-change mechanisms, the number of unit loading areas is one greater than the number of hydrogen modules, and the hydrogen module transport vehicle is provided with a hydrogen module substitute member, the outer shape of the hydrogen module substitute member is the same as that of a hydrogen module.

[0016] By adopting the above technical solution, the unit loading area and the quick-change mounting mechanism in the hydrogen module transport vehicle are installed in a one-to-one correspondence. The number of unit loading areas is one greater than the number of hydrogen modules. When replacing hydrogen modules in a hydrogen energy truck, a hoist is used to directly lift the used hydrogen module into an empty unit loading area, and then the hoist can lift the replacement hydrogen module onto the hydrogen energy truck. In the above process, the hoist does not need to place the used hydrogen module anywhere other than the hydrogen energy truck and hydrogen module transport vehicle, and there is no need to separately lift the used hydrogen module onto the hydrogen module transport vehicle. This contributes to improving the overall operational efficiency of the hydrogen supply system for hydrogen energy trucks.

[0017] Optionally, a hydrogen module mounting platform is provided on the long side of the hydrogen module carrier, the hydrogen module mounting platform includes a platen, a limit plate, limit bolts and a hinge seat, the platen is hinged to the body of the hydrogen module carrier, the hinge seat is hinged to the body of the hydrogen module carrier, the hinge seat is lower than the side on which the limit plate is connected to the hydrogen module carrier, the limit plate is provided with a first through hole, the platen is provided with a second through hole, the hinge seat is provided with a screw hole that fits the limit bolt, the limit bolt passes through the first through hole and the second through hole in sequence and is then screwed into the screw hole, the platen is for supporting the hydrogen module and the limit plate is for preventing the hydrogen module from separating from the platen.

[0018] By employing the above technical solution, the limit bolt sequentially penetrates the limit plate and platen before connecting to the hinge seat. This allows the limit bolt, limit plate, platen, and side wall of the hydrogen module transport vehicle to jointly form two triangular regions, stably maintaining the structure of the mounting platform. As a result, the hydrogen module mounting platform can be used for installing hydrogen modules. Thus, during hydrogen module replacement, it becomes possible to first lift and install the used hydrogen module onto the hydrogen module mounting platform, eliminating the need to place the used hydrogen module on the ground and contributing to reducing contamination and impact from external objects. Furthermore, when installing used hydrogen modules on the platform, the first replaced used hydrogen module does not occupy space on the hydrogen module transport vehicle. After the first replacement hydrogen module is removed, empty space becomes available on the hydrogen module transport vehicle, allowing subsequent replaced used hydrogen modules to be directly installed on the vehicle, which is convenient. The limit bolts and hinge seats are screwed together, and when the hydrogen module transport vehicle is performing transport operations, the bolts can be removed from the first and second through-holes to unfold and lower the platen and limit plate, thereby reducing the space occupied by the mounting platform.

[0019] Optionally, the system further includes a positioning assist device, the positioning assist device including an infrared transmitter and an infrared receiver, the infrared transmitter being for mounting on the side wall of the hydrogen module, and the infrared receiver being for mounting on the long side of the body of the hydrogen energy truck or transport vehicle, and the infrared transmitter and infrared receiver are vertically aligned when the hydrogen module corresponding to the positioning assist device is mounted in a predetermined position.

[0020] By employing the above technical solution, the hoist equipment first attaches an infrared transmitter to the side wall of the hydrogen module and an infrared receiver to the hydrogen module transport vehicle before attaching the hydrogen module to the hydrogen energy truck or hydrogen module transport vehicle. Next, the hoist equipment moves the hydrogen module, and during the movement process, the infrared receiver can receive signals from the infrared transmitter, which helps to determine the horizontal alignment of the hydrogen module, thereby contributing to improved efficiency in hydrogen module installation.

[0021] Optionally, the light-emitting side of the infrared transmitter has a point-like structure, the receiving side of the infrared receiver has an elongated structure, the longer side of the receiving side of the infrared receiver is parallel to the side wall of the corresponding hydrogen module, and the positioning assist device includes a first positioning assist device and a second positioning assist device, the first and second positioning assist devices each corresponding to two adjacent sides of the hydrogen module.

[0022] By employing the above technical solution, the first and second positioning assist devices can be used to determine the alignment status of the hydrogen module in two mutually perpendicular horizontal directions, enabling more precise positioning of the hydrogen module. This contributes to further improving the installation efficiency of the hydrogen module.

[0023] Optionally, the infrared transmitter is provided with a first magnetic adsorption seat, and the infrared receiver is provided with a second magnetic adsorption seat. The first magnetic adsorption seat adheres to the side wall of the hydrogen module by magnetic attraction during installation, and the second magnetic adsorption seat adheres to the body of the hydrogen energy truck or the body of the hydrogen module transport vehicle by magnetic attraction during installation.

[0024] By adopting the above technical solution, the infrared transmitter is mounted on the side wall of the hydrogen module via the first magnetic attraction seat, and the infrared receiver is mounted on the body of the hydrogen energy truck or the hydrogen module transport vehicle via the second magnetic attraction seat, which is convenient.

[0025] Optionally, the hoist locking device includes a hoist frame and a lifting drive mechanism, the lifting drive mechanism is mounted on the top frame, the hoist frame is mounted below the top frame via the lifting drive mechanism, a plurality of positioning locking mechanisms are provided on the hoist frame, the positioning locking mechanism includes a locking pawl and a telescopic drive member, the locking pawl is mounted on the hoist frame via the telescopic drive member, and the locking pawl is configured to engage with the hoist structure of the hydrogen module.

[0026] By adopting the above technical solution, when using the hoist locking device, the telescopic drive member drives and moves the L-shaped member, so that the L-shaped portion is caught on the hoist structure of the hydrogen module, and the hoist locking device can lift the hydrogen module upward. [Effects of the Invention]

[0027] In summary, the present application includes at least one of the following advantageous technical effects.

[0028] 1. The hydrogen supply system replenishes hydrogen energy for the hydrogen energy truck by means of directly replacing the hydrogen module, so hydrogen gas leakage is less likely to occur, and safe operation can be guaranteed. When a hydrogen gas station cannot be constructed nearby for safety reasons, replenishing hydrogen energy by replacing the hydrogen module can reduce the driving distance for the hydrogen energy truck to go out for hydrogen replenishment, which contributes to saving time and improving efficiency.

[0029] 2. When used hydrogen modules are placed on a stand, the first used hydrogen module to be replaced does not occupy space in the hydrogen module transport vehicle. After the first replacement hydrogen module is removed, empty space becomes available on the hydrogen module transport vehicle, allowing subsequent used hydrogen modules to be placed directly on the vehicle, which is convenient. [Brief explanation of the drawing]

[0030] [Figure 1] This is a schematic diagram of the overall structure of Example 1. [Figure 2] This is a schematic diagram of the structure of the hoist equipment in Example 1. [Figure 3] This is a schematic diagram of the gantry structure of Example 1. [Figure 4] This is a schematic diagram of the lifting drive mechanism of Embodiment 1. [Figure 5] This is a schematic diagram showing the connection state between the mounting quick-change mechanism and the hydrogen module main frame in Example 1. [Figure 6] This is a schematic diagram of the mounting quick-change mechanism of Example 1. [Figure 7] This is a schematic diagram of the structure of the hydrogen module mounting platform in Example 2. [Figure 8] This is a schematic diagram showing the bolt connection state in Example 2. [Figure 9] This is a schematic diagram of the positioning assist device of Example 2. [Modes for carrying out the invention]

[0031] The present invention will be described in more detail below with reference to Figures 1-9.

[0032] Example 1 An embodiment of the present invention discloses a hydrogen supply system for a hydrogen energy truck. Referring to Figures 1 and 2, the hydrogen supply system for a hydrogen energy truck includes a hydrogen module carrier 1 and a hoisting device 2, the hydrogen module carrier 1 being for mounting a hydrogen module 3, the hydrogen module 3 having a main frame for mounting a hydrogen gas storage tank, and the hoisting device 2 including a main slide rail 21, a gantry 22, a top frame 23 and a hoist locking device 24, the main slide rail 21 being for mounting to the ground, there being two main slide rails 21 which are parallel to each other, the gantry 22 being slidably mounted between the two main slide rails 21 and the area between the two main slide rails 21 being the hydrogen exchange work area. The longitudinal direction of the main slide rail 21 is defined as the vertical direction, the gantry 22 is provided with a vertical drive mechanism 25 for driving the gantry 22 to move in the vertical direction, the top frame 23 is slidably mounted on the top of the gantry 22, the top frame 23 is provided with a lateral drive mechanism 26 for driving the top frame 23 to move in the lateral direction, the hoist lock device 24 is attached to the top frame 23 and the hoist lock device 24 is for gripping, lifting, and transporting the hydrogen module 3.

[0033] When hydrogen energy truck 7 requires hydrogen refueling, the hydrogen module transport vehicle 1 and hydrogen energy truck 7 are parked simultaneously in the hydrogen exchange work area, and the orientation of the front of both vehicles when parked is aligned longitudinally. First, the used hydrogen module 3 on hydrogen energy truck 7 is lifted and removed using the hoist equipment 2. Next, the hoist lock device 24 of the hoist equipment 2 is moved above the hydrogen module transport vehicle 1, and the replacement hydrogen module 3 from the hydrogen module transport vehicle 1 is lifted, transported, and installed on hydrogen energy truck 7. The used hydrogen module 3 can be lifted and transported to an empty position on the hydrogen module transport vehicle 1 using the hoist equipment 2. After all the replacement hydrogen modules 3 mounted on the hydrogen module transport vehicle 1 have been replaced with used hydrogen modules 3, the used hydrogen modules 3 mounted on the hydrogen module transport vehicle 1 are refueled with hydrogen all at once.

[0034] Referring to Figure 2, the main slide rail 21 includes a vertical rail 211 and a support truss 212, the support truss 212 includes a steel beam 2120 and a plurality of support legs 2121, the steel beam 2120 is installed along the vertical direction, the vertical rail 211 is fixed to the top of the steel beam 2120 along the vertical direction, the plurality of support legs 2121 are arranged at equal intervals along the vertical direction, the support legs 2121 include a vertical support rod 2122 and an inclined support rod 2123, the vertical support rod 2122 is located directly below the steel beam 2120, the inclined support rod 2123 is located on the side of the vertical support rod 2122 away from the hydrogen exchange work area, the upper end of the inclined support rod 2123 is connected to the upper end of the vertical support rod 2122, the lower end of the inclined support rod 2123 and the vertical support rod 2122 are offset laterally, and connecting plates 2124 are provided at the lower ends of both the vertical support rod 2122 and the inclined support rod 2123. When installing the support truss 212, the connecting plate 2124 can be fixed to the concrete floor surface using expansion bolts, or the connecting plate 2124 can be welded to a steel structure pre-embedded in the concrete floor surface.

[0035] Referring to Figure 2, limit blocks 2125 are provided at both ends of the steel beam 2120, and the limit blocks 2125 are for limiting the vertical movement stroke of the gantry 22. The vertical distribution range of the multiple support legs 2121 is located between the end faces of the steel beam 2120, and each support leg 2121 close to both ends of the steel beam 2120 is provided with an oblique support rod 2126, one end of which is connected to the vertical support rod 2122 of the corresponding support leg 2121, and the other end of which is connected to the end of the steel beam 2120.

[0036] Referring to Figure 3, two longitudinal drive mechanisms 25 are provided, and each of the two longitudinal drive mechanisms 25 corresponds to one of the two longitudinal rails 211. Each longitudinal drive mechanism 25 includes a first motor 251, a first drive roller 252, and a first driven roller 253. The first motor 251, the first drive roller 252, and the first driven roller 253 are all mounted on the gantry 22, and the first drive roller 252 and the first driven roller 253 are connected to the corresponding longitudinal rails 211 by rolling. The first motor 251 is for driving the first drive roller 252 to run along the longitudinal rails 211.

[0037] Referring to Figures 3 and 4, the top of the gantry 22 is provided with two lateral rails 231, and two lateral drive mechanisms 26 are provided, each corresponding to one of the two lateral rails 231. The lateral drive mechanism 26 includes a second motor 261, a second drive roller 262, and a second driven roller 263. The second motor 261, the second drive roller 262, and the second driven roller 263 are all mounted on the top frame 23, and the second drive roller 262 and the second driven roller 263 are connected to the corresponding lateral rails 231 by rolling. The second motor 261 is for driving the second drive roller 262 to run along the lateral rails 231.

[0038] Referring to Figure 4, the hoist locking device 24 includes a hoist frame 241 and a lifting drive mechanism 243, the lifting drive mechanism 243 is mounted on the top frame 23, the lifting drive mechanism 243 includes a twin-roll hoist 2430, four fixed pulleys 244 and four movable pulleys 245, the twin-roll hoist 2430 is mounted in the central region of the top frame 23, the twin-roll hoist 2430 includes two drums 2431, each drum 2431 has two wire ropes 243 A lifting drive mechanism 243 is provided, and four fixed pulleys 244 are attached to the four corners of the top frame 23, each corresponding to four wire ropes 2432. Four movable pulleys 245 are attached to the four corners of the hoist frame 241, each corresponding to four wire ropes 2432. The wire ropes 2432 of the hoisting machine are wound sequentially around the corresponding fixed pulleys 244 and movable pulleys 245 before being connected to the hoist frame 241. The hoist frame 241 is lifted below the top frame 23 via a lifting drive mechanism 243.

[0039] The hoist frame 241 is provided with multiple sets of positioning locking mechanisms 246 and multiple sets of guide columns 247. Each set of positioning locking mechanisms 246 consists of two units, and the two identical sets of positioning locking mechanisms 246 are installed facing each other. Each positioning locking mechanism 246 includes a locking claw 2461 and an extendable drive member 2462, the extendable drive member 2462 being a cylinder. The locking claw 2461 is attached to the hoist frame 241 via the extendable drive member 2462 and is intended to engage with the hoist structure of the hydrogen module 3. When the two opposing positioning locking mechanisms 246 simultaneously engage with the top of the hydrogen module 3, the position of the hydrogen module 3 is locked. Each set of guide columns 247 consists of two columns, and the two guide columns 247 of the same set are installed facing each other. An inclined guide surface 2471 is provided on the lower end surface of each guide column 247, and the inclined guide surfaces 2471 of the two guide columns 247 of the same set are installed facing each other or facing away from each other. As the hoist frame 241 moves downward, the inclined guide surfaces 2471 form a guiding action with respect to the main frame of the hydrogen module 3, thereby aligning the hydrogen module and the hoist frame 241 vertically.

[0040] Referring to Figures 5 and 6, the body of the hydrogen module transport vehicle 1 is provided with a plurality of mounting quick-change mechanisms 4 for positioning replacement hydrogen modules 3 or used hydrogen modules 3, and the plurality of mounting quick-change mechanisms 4 are arranged at equal intervals along the length of the body of the hydrogen module transport vehicle 1. The mounting quick-change mechanism 4 includes a connecting seat 41 and eight engagement mechanisms 42, the connecting seat 41 being a welded frame structure and for connecting to the body of the hydrogen energy truck 7, the engagement mechanisms 42 being attached to the connecting seat 41 and the eight engagement mechanisms 42 being arranged to surround the center of the connecting seat 41, the engagement mechanisms 42 including a mounting column 421 and engagement components 422, the engagement components 422 including an engagement block 4221 and a telescopic cylinder 4222, the telescopic cylinder 4222 for driving the engagement block 4221 to extend or retract in the direction toward or toward the center of the connecting seat 41, the mounting column 421 having a guide surface 4211, the orientation of which the guide surface 4211 is inclined toward away from the center of the connecting seat 41.

[0041] During the process of lifting the hydrogen module 3 onto the hydrogen module transport vehicle 1, as the hydrogen module 3 moves downward, the guide surface 4211 of the mounting column 421 comes into contact with the frame bar of the main frame, aligning the main frame and the mounting quick-change mechanism 4 vertically. At this time, the engagement block 4221 is retracted to avoid the main frame of the hydrogen module 3. When the hydrogen module 3 has descended to a predetermined position, the telescopic cylinder 4222 drives the engagement block 4221 forward, locking the engagement block 4221 into the frame bar at the bottom of the main frame. This restricts the vertical position of the hydrogen module 3, making it less susceptible to the effects of pitching while the hydrogen module transport vehicle 1 is in motion.

[0042] The hoist device 2 is equipped with an air pump, which provides a gas source to the hoist locking device 24 and the cylinder of the mounting quick-change mechanism 4.

[0043] The loading area of ​​the hydrogen module transport vehicle 1 is divided into multiple unit loading areas, the number of unit loading areas being the same as the number of hydrogen modules 3, and each unit loading area corresponds to one mounting quick-change mechanism 4.

[0044] The operating principle of the hydrogen supply system for a hydrogen energy truck according to the embodiment of the present invention is as follows: A hydrogen module transport vehicle 1, equipped with replacement hydrogen modules 3, is parked in the hydrogen exchange work area. When hydrogen energy replenishment is needed for the hydrogen energy truck 7, the hydrogen energy truck 7 is driven to the hydrogen exchange work area and kept in the same orientation as the hydrogen module transport vehicle 1. Then, the hoist lock device 24 of the hoist equipment 2 is moved above the hydrogen energy truck 7, and the used hydrogen module 3 is lifted and removed by the hoist lock device 24. Next, the hoist lock device 24 is moved above the hydrogen module transport vehicle 1, and the replacement hydrogen module 3 is lifted and installed on the hydrogen energy truck 7. After all the used hydrogen modules 3 in the hydrogen module transport vehicle 1 have been replaced, the hydrogen module transport vehicle 1 transports all the used hydrogen modules 3 to a hydrogen gas station for hydrogen refueling.

[0045] By directly replacing the hydrogen module 3 to replenish the hydrogen energy truck 7, hydrogen gas leaks are less likely to occur, ensuring safe operation. Furthermore, in cases where it is not possible to construct a nearby hydrogen gas station for safety reasons, replacing the hydrogen module 3 to replenish the hydrogen energy truck 7 reduces the distance it needs to travel to refuel, contributing to time savings and improved efficiency.

[0046] Example 2 Referring to Figures 7 and 8, this embodiment differs from Embodiment 1 in the following respects. A mounting platform for the hydrogen module 3 is provided on the long side of the hydrogen module transport vehicle 1. The mounting platform for the hydrogen module 3 includes a platen 51, a limit plate 52, limit bolts 53 and a hinge seat 54. The platen 51 is hinged to the body of the hydrogen module transport vehicle 1, and the hinge seat 54 is hinged to the body of the hydrogen module transport vehicle 1. The hinge seat 54 is lower than the side on which the limit plate 52 is connected to the hydrogen module transport vehicle 1. The limit plate 52 is provided with a first through hole 511, the platen 51 is provided with a second through hole 521, and the hinge seat 54 has a screw hole 541 that fits the limit bolts 53. The platen 51 is provided, and the limit bolts 53 pass through the first through hole 511 and the second through hole 521 in sequence, and are then screwed into the threaded hole 541. The platen 51 is for supporting the hydrogen module 3, and the limit plate 52 is for preventing the hydrogen module 3 from separating from the platen 51. Two limit bolts 53 are provided, and the two limit bolts 53 are located on opposite sides of the platen 51. The area between the two limit bolts 53 on the platen 51 is the hydrogen module 3 installation area, and the limit bolts 53 can exert a limiting effect on the hydrogen module 3 on the platen 51.

[0047] When replacing hydrogen module 3, the used hydrogen module 3 can first be lifted and placed on the hydrogen module 3 mounting platform. When one unit loading area on the hydrogen module transport vehicle 1 becomes free and a subsequent hydrogen energy truck 7 requires hydrogen module replacement, the hoist equipment 2 can directly lift the used hydrogen module 3 into the free unit loading area on the hydrogen module transport vehicle 1. After all replacement hydrogen modules 3 on the hydrogen module transport vehicle 1 have been replaced with used hydrogen modules 3, the hydrogen module 3 on the mounting platform can be lifted into the free unit loading area on the hydrogen module transport vehicle 1. When the hydrogen module transport vehicle 1 is performing transport operations, the limit bolts 53 can be removed, and the platen 51 and limit plate 52 can be deployed to reduce the space occupied by the mounting platform.

[0048] A wedge-shaped washer 55 is fitted to the limit bolt 53, and the wedge-shaped washer 55 is positioned between the port cap of the limit bolt 53 and the limit plate 52, filling the gap between the port cap of the limit bolt 53 and the limit plate 52, and stabilizing the connection between the limit bolt 53 and the limit plate 52.

[0049] Referring to Figure 9, the hydrogen supply system for the hydrogen energy truck in this embodiment further includes a positioning assist device 6, which includes an infrared transmitter 61 and an infrared receiver 62. The infrared transmitter 61 is for mounting on the side wall of the hydrogen module 3, and the infrared receiver 62 is for mounting on the long side of the body of the hydrogen energy truck 7 or transport vehicle. The light-emitting side of the infrared transmitter 61 has a point-like structure, and the receiving side of the infrared receiver 62 has an elongated structure. The long side of the receiving side of the infrared receiver 62 is parallel to the side wall of the corresponding hydrogen module 3. The infrared transmitter 61 is provided with a first magnetic adsorption seat 63, and when mounted, the infrared transmitter 61 is attracted to the side wall of the hydrogen module 3 by magnetic adsorption. The infrared receiver 62 is provided with a second magnetic adsorption seat 64, and when mounted, the infrared receiver 62 is attracted to the body of the hydrogen energy truck 7 or the body of the hydrogen module transport vehicle 1 by magnetic adsorption.

[0050] The positioning assist device 6 is divided into a first positioning assist device 6 and a second positioning assist device 6, depending on the difference in their operational positions relative to the hydrogen module 3. The first positioning assist device 6 and the second positioning assist device 6 correspond to two adjacent sides of the hydrogen module 3, respectively.

[0051] Before attaching the hydrogen module 3 to the hydrogen energy truck 7 or hydrogen module transport vehicle 1, the hoist equipment 2 first attaches the infrared transmitter 61 to the side wall of the hydrogen module 3 and the infrared receiver 62 to the hydrogen module transport vehicle 1. Next, the hoist equipment 2 moves the hydrogen module 3, and during the movement of the hydrogen module 3, the first positioning assist device 6 and the second positioning assist device 6 can be used to determine the alignment status of the hydrogen module 3 in two mutually perpendicular horizontal directions. When the hydrogen module 3 corresponding to the positioning assist device 6 is installed in the predetermined position, the infrared transmitter and infrared receiver 62 are aligned vertically. When the hydrogen module 3 is installed using the positioning assist devices 6, the installation efficiency of the hydrogen module 3 can be improved.

[0052] In this embodiment, the infrared transmitter of the positioning assist device 6 can be replaced with a laser device, and the infrared receiver 62 can be replaced with a laser detector.

[0053] Example 3 This embodiment differs from Embodiment 1 in the following respects. In this embodiment, the number of unit loading areas is one greater than the number of hydrogen modules 3, the hydrogen module transport vehicle 1 is provided with substitute members for the hydrogen modules 3, and the outer shape of the substitute members for the hydrogen modules 3 is the same as that of the hydrogen modules 3.

[0054] In the hydrogen module transport vehicle 1, the unit loading area and the quick-change mounting mechanism 4 are installed in a one-to-one correspondence. The number of unit loading areas is one greater than the number of hydrogen modules 3. When replacing the hydrogen module 3 in the hydrogen energy truck 7, the hoist equipment 2 is used to directly lift the used hydrogen module 3 into an empty unit loading area, and then the hoist equipment 2 can lift the replacement hydrogen module 3 onto the hydrogen energy truck 7. In the above process, the hoist equipment 2 does not need to place the used hydrogen module 3 anywhere other than the hydrogen energy truck 7 and the hydrogen module transport vehicle 1, and there is no need to separately lift the used hydrogen module onto the hydrogen module transport vehicle 1, thus contributing to improved operational efficiency of the entire hydrogen supply system for the hydrogen energy truck.

[0055] The above are all preferred embodiments of the present application and do not limit the scope of protection of the present application. Accordingly, all equivalent modifications made based on the structure, shape, and principle of the present application should be included within the scope of protection of the present application. [Explanation of Symbols]

[0056] 1. Hydrogen module transport vehicle, 2. Hoist equipment, 21. Main slide rail, 211. Longitudinal rail, 212. Support truss, 2120. Steel beam, 2121. Support leg, 2122. Vertical support rod, 2123. Inclined support rod, 2124. Connecting plate, 2125. Limit block, 2126. Diagonal support rod, 22. Gantry, 23. Top frame, 231. Lateral rail, 24. Hoist rod 241, Hoist frame, 243, Lifting drive mechanism, 2430, Twin roll hoist, 2431, Drum, 2432, Wire rope, 244, Fixed pulley, 245, Movable pulley, 246, Positioning lock mechanism, 2461, Locking claw, 2462, Telescopic drive member, 247, Guide column, 2471, Inclined guide surface, 25, Vertical drive mechanism, 251, First motor, 252, First drive rod 3. Hydrogen module, 253, first driven roller, 26, lateral drive mechanism, 261, second motor, 262, second drive roller, 263, second driven roller, 3. Hydrogen module, 31, hydrogen module main frame, 4. Mounting quick change mechanism, 41, connecting seat, 42, engagement mechanism, 421, mounting column, 4211, guide surface, 422, engagement component, 4221, engagement block, 4222, telescopic cylinder, 5. Hydrogen module mounting base, 51, platen, 511, first through hole, 52, limit plate, 521, second through hole, 53, limit bolt, 54, hinge seat, 541, screw hole, 55, wedge washer, 6. Positioning assist device, 61, infrared transmitter, 62, infrared receiver, 63, first magnetic adsorption seat, 64, second magnetic adsorption seat, 7. Hydrogen energy track

Claims

1. A hydrogen supply system for a hydrogen energy truck, comprising a hydrogen module carrier (1) and a hoist device (2), wherein the hydrogen module carrier (1) is for carrying a transport hydrogen module (3), the hoist device (2) comprises a main slide rail (21), a gantry (22), a top frame (23), and a hoist locking device (24), wherein there are two main slide rails (21) which are parallel to each other, the gantry (22) is slidably mounted between the two main slide rails (21), the longitudinal direction of the main slide rails (21) is defined as the longitudinal direction, the gantry (22) is provided with a longitudinal drive mechanism (25) for driving the gantry (22) to move in the longitudinal direction, and the top frame (23) is the A hydrogen supply system for a hydrogen energy truck, characterized in that a lid drive mechanism (26) is provided on the top frame (23) of the gantry (22) so as to be slidably mounted on the top frame (23) for driving the top frame (23) to move laterally, a hoist lock device (24) is attached to the top frame (23) and the hoist lock device (24) is for gripping and lifting and transporting the hydrogen module (3), the area between the two main slide rails (21) is a hydrogen exchange work area, and when the hydrogen module transport vehicle (1) and the hydrogen energy truck (7) are parked in the hydrogen exchange work area, the orientation of the front of the vehicles when parked is in line with the longitudinal direction.

2. The main slide rail (21) includes a longitudinal rail (211) and a support truss (212), the support truss (212) includes a steel beam (2120) and a plurality of support legs (2121), the steel beam (2120) is installed along the longitudinal direction, the longitudinal rail (211) is fixed along the longitudinal direction to the top of the steel beam (2120), and the plurality of support legs (2121) are arranged at intervals along the longitudinal direction, the support legs The hydrogen supply system for a hydrogen energy truck according to claim 1, wherein (2121) includes a vertical support rod (2122) and an inclined support rod (2123), the vertical support rod (2122) being located directly below the steel beam (2120), the upper end of the inclined support rod (2123) being connected to the upper end of the vertical support rod (2122), and the lower end of the inclined support rod (2123) being laterally offset from the vertical support rod (2122).

3. A hydrogen supply system for a hydrogen energy truck according to claim 2, characterized in that limit blocks (2125) are provided at both ends of the steel beam (2120), the limit blocks (2125) are for limiting the vertical movement stroke of the gantry (22), the distribution range in the vertical direction of the multiple sets of support legs (2121) is located between the end faces of the steel beam (2120), and diagonal support rods (2126) are provided on the vertical support rods (2122) of the support legs (2121) that are close to the ends of the steel beam (2120), one end of the diagonal support rod (2126) is connected to the corresponding vertical support rod (2122), and the other end of the diagonal support rod (2126) is connected to the end of the steel beam (2120).

4. The hydrogen supply system for a hydrogen energy truck according to claim 1, characterized in that the body of the hydrogen module transport vehicle (1) is provided with a plurality of mounting quick-change mechanisms (4) for positioning a replacement hydrogen module (3) or a used hydrogen module (3), and the plurality of mounting quick-change mechanisms (4) are arranged at equal intervals along the length of the body of the hydrogen module transport vehicle (1).

5. The hydrogen supply system for a hydrogen energy truck according to claim 4, characterized in that the loading area of ​​the vehicle body of the hydrogen module transport vehicle (1) is divided into a plurality of unit loading areas, each unit loading area corresponds to one of the mounting quick change mechanisms (4), the number of unit loading areas is one greater than the number of hydrogen modules (3), the hydrogen module transport vehicle (1) is provided with a substitute member for the hydrogen module (3), and the outer shape of the substitute member for the hydrogen module (3) is the same as that of the hydrogen module (3).

6. A mounting platform for the hydrogen module (3) is provided on the long side of the hydrogen module transport vehicle (1), and the mounting platform for the hydrogen module (3) includes a platen (51), a limit plate (52), a limit bolt (53), and a hinge seat (54), the platen (51) is hinged to the body of the hydrogen module transport vehicle (1), the hinge seat (54) is hinged to the body of the hydrogen module transport vehicle (1), the hinge seat (54) is lower than the side on which the limit plate (52) is connected to the hydrogen module transport vehicle (1), and the limit plate (52) is provided with a first through hole (511). A hydrogen supply system for a hydrogen energy truck according to claim 1, characterized in that the platen (51) is provided with a second through hole (521), the hinge seat (54) is provided with a threaded hole (541) that fits the limit bolt (53), the limit bolt (53) passes through the first through hole (511) and the second through hole (521) in sequence and is then screwed into the threaded hole (541), the platen (51) is for supporting the hydrogen module (3), and the limit plate (52) is for preventing the hydrogen module (3) from separating from the platen (51).

7. The hydrogen supply system for a hydrogen energy truck according to claim 1, further comprising a positioning assist device (6), the positioning assist device (6) comprising an infrared transmitter (61) and an infrared receiver (62), wherein the infrared transmitter (61) is for mounting on the side wall of a hydrogen module (3), and the infrared receiver (62) is for mounting on the long side of the body of a hydrogen energy truck (7) or transport vehicle, and the infrared transmitter (61) and the infrared receiver (62) are vertically aligned when the hydrogen module (3) corresponding to the positioning assist device (6) is mounted in a predetermined position.

8. The hydrogen supply system for a hydrogen energy truck according to claim 7, characterized in that the light-emitting side of the infrared transmitter (61) has a point-like structure, the receiving side of the infrared receiver (62) has an elongated structure, the longer side of the receiving side of the infrared receiver (62) is parallel to the side wall of the corresponding hydrogen module (3), and the positioning assist device (6) includes a first positioning assist device (6) and a second positioning assist device (6), the first positioning assist device (6) and the second positioning assist device (6) each correspond to two adjacent sides of the hydrogen module (3).

9. The hydrogen supply system for a hydrogen energy truck according to claim 7, wherein the infrared transmitter (61) is provided with a first magnetic adsorption seat (63), the infrared receiver (62) is provided with a second magnetic adsorption seat (64), the first magnetic adsorption seat (63) adsorbs the side wall of the hydrogen module (3) by magnetic adsorption when installed, and the second magnetic adsorption seat (64) adsorbs the body of the hydrogen energy truck (7) or the body of the hydrogen module transport vehicle (1) by magnetic adsorption when installed.

10. The hydrogen supply system for a hydrogen energy truck according to claim 1, characterized in that the hoist locking device (24) includes a hoist frame (241) and a lifting drive mechanism (243), the lifting drive mechanism (243) is attached to the top frame (23), the hoist frame (241) is attached below the top frame (23) via the lifting drive mechanism (243), the hoist frame (241) is provided with several positioning locking mechanisms (246), the positioning locking mechanism (246) includes a locking claw (2461) and an extendable drive member (2462), the locking claw (2461) is attached to the hoist frame (241) via the extendable drive member (2462), and the locking claw (2461) is for engaging with the hoist structure of the hydrogen module (3).

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