Two-stage lifting and changing battery hoisting device and electric ship

Abstract

The utility model provides a kind of two-stage lifting battery replacement hoisting device and electric ship, it is related to electric ship battery replacement hoisting technical field, and it includes: track, one end is arranged in battery compartment, and the other end extends to outside battery compartment;Hoisting walking mechanism includes frame, walking drive mechanism, lifting drive mechanism and lifting appliance, the lower end of frame is provided with moving part, moving part is arranged above track, walking drive mechanism can drive frame to move along track, lifting drive mechanism is connected with lifting appliance below it by lifting rope, lifting appliance is used to cooperate with the hoisting interface of the top of battery pack, the lower of frame is provided with lifting support and slide rail, slide rail is connected with frame, lifting support is slidably engaged with slide rail by sliding block, lifting appliance is cooperated with lifting support by plug-in structure;The problem that lifting appliance is always in swingable state by simply using steel wire rope lifting lifting appliance in prior art is solved, which is not conducive to the safety of battery pack and affects the battery replacement efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of electric ship battery swapping and hoisting technology, and more specifically, relates to a two-stage lifting and hoisting device for battery swapping and electric ships. Background Technology

[0002] In the traditional battery swapping system for electric vessels, the lifting method using a wire rope lifting device involves clamping the battery pack's top lifting interface with the device. This method allows the lifting device to swing throughout its entire travel, which is detrimental to the safety of both the device and the battery pack during transport and also affects the battery swapping efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a two-stage lifting and hoisting device for battery swapping and an electric vessel. This solves the problem that existing technologies, which rely solely on wire rope hoists, leave the hoisting device in a constantly swinging state, which is detrimental to the safety of the battery pack and affects the battery swapping efficiency.

[0004] To achieve the above objectives, this utility model provides a two-stage lifting and power-swapping hoisting device, comprising:

[0005] The track has one end located inside the battery compartment and the other end extending outside the battery compartment, forming an extension section.

[0006] A hoisting and traveling mechanism includes a frame, a traveling drive mechanism, a lifting and lowering drive mechanism, and a lifting device. A movable component is located at the lower end of the frame, positioned above and movably engaging with a track. The traveling drive mechanism drives the frame to move along the track. The lifting and lowering drive mechanism is located in the middle of the frame and connected to the lifting device below it via a lifting rope, thereby lifting and lowering the lifting device. The lifting device engages with a hoisting interface on the top of the battery pack. A lifting bracket and a slide rail are located below the frame. The slide rail is connected to the frame, and the lifting bracket slides with the slide rail via a slider. The lifting device engages with the lifting bracket via a plug-in structure. The length of the slide rail is less than the lifting and lowering stroke of the lifting and lowering drive mechanism.

[0007] Optionally, a track support is provided below the track, the track support including a track beam and track legs.

[0008] Optionally, the walking drive mechanism is fixed inside the battery compartment, and the walking drive mechanism includes:

[0009] A first drive motor and a first reducer are disposed between the two tracks;

[0010] Two universal couplings, one end of each universal coupling is connected to both ends of the output shaft of the first reducer, and the other end of each universal coupling is provided with a drive sprocket;

[0011] Two passive sprockets are respectively rotatably mounted on one side of two tracks that are close to each other;

[0012] Two ring chains, each engaging with a drive sprocket and a driven sprocket, are provided. The hoisting and traveling mechanism is connected to the ring chains via connecting components.

[0013] Optionally, the connecting component includes a connecting bracket and an inverted U-shaped connecting plate disposed below the connecting bracket. The connecting bracket is connected to the lower inner side of the frame, and part of the annular chain is embedded in the opening of the connecting plate and fixedly connected to the connecting plate.

[0014] Optionally, the take-off and landing drive mechanism includes:

[0015] Two rotating shafts are arranged parallel to each other on the frame;

[0016] Four drums are provided, with one drum at each end of each rotating shaft, and one end of each lifting rope is connected to one drum;

[0017] A transmission structure is disposed between the two rotating shafts;

[0018] A second drive motor and a second reducer are mounted on the frame, and the output end of the second reducer is connected to one of the rotating shafts.

[0019] Optionally, the transmission structure includes a first sprocket, a second sprocket, and a transmission chain. The first sprocket and the second sprocket are respectively disposed in the middle of the two rotating shafts, and the transmission chain cooperates with the first sprocket and the second sprocket.

[0020] Optionally, the lifting device includes a support plate and grippers disposed on the lower side of the support plate. The support plate is rotatably connected to four guide wheels, and the other end of each lifting rope passes around the guide wheel and is connected to the lifting bracket.

[0021] Optionally, the moving component is a traveling wheel, and the traveling wheel is provided with radially outward protruding limiting discs on both sides, the limiting discs being located on both sides of the track.

[0022] Optionally, the plug-in structure includes a guide sleeve and a pin. The guide sleeve and the pin are respectively disposed on the lower side of the lifting bracket and the upper side of the lifting device. The pin includes a fixing part and an insertion part arranged sequentially from bottom to top. The insertion part is inserted into and guided by the guide sleeve, and the fixing part abuts against the lower end face of the guide sleeve.

[0023] This utility model also provides an electric boat, comprising:

[0024] A battery compartment, which is located on the deck;

[0025] The aforementioned two-stage lifting and power swapping hoisting device;

[0026] A battery buffer base is located below the extension.

[0027] This utility model provides a two-stage lifting and swapping device and an electric vessel. Its advantages are as follows: The two-stage lifting and swapping device uses a lifting and traveling mechanism that travels on a track, utilizing a lifting and lowering drive mechanism and a lifting device to lift and swap battery packs. The lifting and traveling mechanism has a slide rail and a lifting support below the frame. The lifting support is guided by a slider connected to the slide rail. When the lifting device is connected to the lifting support via a plug-in structure, the travel of the lifting device within the length of the slide rail is guided by the slide rail. This makes the upper half of the entire lifting and lowering stroke of the lifting and lowering drive mechanism a rigid lifting motion and the lower half a flexible lifting motion. This allows the lifting and traveling mechanism to enter a rigid lifting motion after lifting the battery pack, and restricts the swing of the battery pack and the lifting device during battery pack movement, effectively improving the safety of the battery pack movement. Simultaneously, it allows for a flexible stroke only when gripping or lowering the battery pack, avoiding the need for time to stabilize due to significant swinging of the battery pack or lifting device during movement, thus improving battery swapping efficiency. It also ensures that the lifting device has a certain degree of buoyancy, adapting to a certain range of battery swapping errors.

[0028] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0029] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0030] Figure 1 A three-dimensional structural schematic diagram of a two-stage lifting and swapping hoisting device according to an embodiment of the present invention is shown.

[0031] Figure 2A three-dimensional structural schematic diagram of the hoisting and traveling mechanism of a two-stage lifting and swapping hoisting device according to an embodiment of the present invention is shown.

[0032] Figure 3 A front view structural schematic diagram of the hoisting and traveling mechanism d of a two-stage lifting and swapping hoisting device according to an embodiment of the present invention is shown.

[0033] Figure 4 A schematic diagram of the walking drive mechanism of a two-stage lifting and swapping hoisting device according to an embodiment of the present invention is shown.

[0034] Figure 5 A schematic diagram of the connection structure between the walking drive mechanism and the frame of a two-stage lifting and swapping hoisting device according to an embodiment of the present invention is shown.

[0035] Figure 6 A schematic diagram of the connecting components of a two-stage lifting and swapping hoisting device according to an embodiment of the present invention is shown.

[0036] Figure 7 A schematic diagram of the battery compartment of an electric ship according to an embodiment of the present invention is shown.

[0037] Figure 8 A schematic diagram of the structure of a battery buffer base for an electric ship according to an embodiment of the present invention is shown.

[0038] Figure 9 A schematic diagram of the cooperation structure between the fixed guide sleeve and the stop cylinder of an electric ship according to an embodiment of the present invention is shown.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Track; 2. Lifting and traveling mechanism; 3. Frame; 4. Lifting and lowering drive mechanism; 5. Lifting device; 6. Moving parts; 7. Lifting rope; 8. Lifting bracket; 9. Slide rail; 10. Slider; 11. Plug-in structure; 12. Guide frame; 13. Track beam; 14. Support leg; 15. First drive motor; 16. First reducer; 17. Universal coupling; 18. Drive sprocket; 19. Ring chain; 20. Connecting bracket; 21. Connecting plate; 22. Drum; 23. Second drive motor; 24. Second reducer; 25. First sprocket; 26. Second sprocket; 27. Transmission chain; 28. Guide wheel; 29. ​​Guide sleeve; 30. Pin; 31. Battery buffer base; 32. Louvered panel; 33. Canopy; 34. Box beam; 35. Fixed guide sleeve; 36. Stop cylinder; 37. Stop post; 38. Mounting base; 39. Limit block. Detailed Implementation

[0041] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0042] like Figures 1 to 3 As shown, this utility model provides a two-stage lifting and swapping hoisting device, comprising:

[0043] Track 1, one end of track 1 is set inside the battery compartment, and the other end of track 1 extends outside the battery compartment to form an extension section;

[0044] The hoisting travel mechanism 2 includes a frame 3, a travel drive mechanism, a lifting and lowering drive mechanism 4, and a lifting device 5. A moving part 6 is provided at the lower end of the frame 3. The moving part 6 is located above the track 1 and is movably engaged with the track 1. The travel drive mechanism can drive the frame 3 to move along the track 1. The lifting and lowering drive mechanism 4 is located in the middle of the frame 3 and is connected to the lifting device 5 located below it through a lifting rope 7 to drive the lifting device 5 to lift and lower. The lifting device 5 is used to engage with the hoisting interface on the top of the battery pack. A lifting bracket 8 and a slide rail 9 are provided below the frame 3. The slide rail 9 is connected to the frame 3. The lifting bracket 8 is slidably engaged with the slide rail 9 through a slider 10. The lifting device 5 is engaged with the lifting bracket 8 through a plug-in structure 11. The length of the slide rail 9 is less than the lifting and lowering stroke of the lifting and lowering drive mechanism 4.

[0045] Specifically, to address the problem in existing technologies where a single wire rope lifting device 5 is always in a swinging state, which is detrimental to battery pack safety and affects battery swapping efficiency, this utility model provides a two-stage lifting and swapping device. The lifting and traveling mechanism 2 travels on the track 1, utilizing the lifting and lowering drive mechanism 4 and the lifting device 5 to lift and swap the battery pack. The lifting and traveling mechanism 2 has a slide rail 9 and a lifting support 8 below the frame 3. The lifting support 8 is guided to slide on the slide rail 9 via a slider 10. When the lifting device 5 is connected to the lifting support 8 via a plug-in structure 11, the travel distance of the lifting device 5 within the length of the slide rail 9 is... Guided by the slide rail 9, the upper half of the lifting and lowering drive mechanism 4 is a rigid lifting motion, while the lower half is a flexible lifting motion. This allows the traveling hoisting mechanism to enter a rigid lifting motion after lifting the battery pack, and restricts the swing of the battery pack and the lifting device 5 when moving the battery pack, effectively improving the safety of the battery pack during movement. At the same time, it can only have a flexible stroke when grabbing or putting down the battery pack, which can avoid the battery pack or the lifting device 5 from needing time to stabilize due to significant swing during movement, thus improving the battery swapping efficiency. It can also ensure that the lifting device 5 has a certain degree of floating, which can adapt to a certain range of battery swapping errors.

[0046] In this embodiment, guide frames 12 are connected to the lower two sides of the frame 3, and slide rails 9 are vertically arranged on the guide frames 12. The guide frames 12 are rectangular frames, and their lower beams can support the lifting brackets 8.

[0047] Optionally, a track 1 support is provided below the track 1, and the track 1 support includes a track beam 13 and track 1 legs 14.

[0048] Specifically, the track 1 support bracket supports and fixes the track 1, and the track 1 is supported by the track beam 13.

[0049] Optionally, the walking drive mechanism is fixed inside the battery compartment, and the walking drive mechanism includes:

[0050] The first drive motor 15 and the first reducer 16 are disposed between the two tracks 1;

[0051] Two universal couplings 17 are provided, one end of which is connected to both ends of the output shaft of the first reducer 16, and the other end of each universal coupling 17 is provided with a drive sprocket 18.

[0052] Two passive sprockets are respectively mounted on one side of two tracks 1 that are close to each other;

[0053] Two ring chains 19, each ring chain 19 cooperating with a driving sprocket 18 and a driven sprocket, and the hoisting and traveling mechanism 2 is connected to the ring chains 19 through connecting parts.

[0054] Specifically, such as Figure 4 As shown, under the drive of the first drive motor 15, the first reducer 16 drives the two universal couplings 17 to rotate, and then drives the two ring chains 19 to run through the drive sprocket 18. Since the hoisting and traveling mechanism 2 is connected to the ring chain 19 through the connecting component, the hoisting and traveling mechanism 2 moves along the track 1 as the ring chain 19 runs.

[0055] In this embodiment, the first drive motor 15 and the first reducer 16 are fixed inside the battery compartment.

[0056] Optionally, the connecting component includes a connecting bracket 20 and an inverted U-shaped connecting plate 21 disposed below the connecting bracket 20. The connecting bracket 20 is connected to the inner side of the lower end of the frame 3, and a portion of the annular chain 19 is embedded in the opening of the connecting plate 21 and fixedly connected to the connecting plate 21.

[0057] Specifically, such as Figure 5 and Figure 6As shown, the connecting component is connected to the inner side of the frame 3 through the connecting bracket 20. The inverted U-shaped connecting plate 21 accommodates the embedding of a section of the ring chain 19 and can be fixedly connected to the ring chain 19 by welding, riveting or other methods.

[0058] Optionally, the lifting and lowering drive mechanism 4 includes:

[0059] Two rotating shafts are arranged in parallel on frame 3;

[0060] Four drums 22, one drum 22 is provided at each end of each rotating shaft, and one end of each lifting rope 7 is connected to a drum 22;

[0061] The transmission structure is located between two rotating shafts;

[0062] The second drive motor 23 and the second reducer 24 are mounted on the frame 3, and the output end of the second reducer 24 is connected to a rotating shaft.

[0063] Specifically, the lifting drive mechanism 4 winds the lifting rope 7 by rotating the drive drum 22, thereby lifting the lifting device 5. Under the drive of the second drive motor 23, the second reducer 24 drives a rotating shaft to rotate. Under the action of the transmission structure, the two rotating shafts and the four drums 22 rotate together to wind and lower the four lifting ropes 7.

[0064] Optionally, the transmission structure includes a first sprocket 25, a second sprocket 26, and a transmission chain 27. The first sprocket 25 and the second sprocket 26 are respectively disposed in the middle of two rotating shafts, and the transmission chain 27 cooperates with the first sprocket 25 and the second sprocket 26.

[0065] Specifically, the transmission structure can achieve chain transmission between the two rotating shafts through the cooperation of the transmission chain 27 with the first sprocket 25 and the second sprocket 26 respectively set on the two rotating shafts.

[0066] In other examples, transmission between two rotating shafts can also be achieved through the meshing of two gears or the transmission of a synchronous belt.

[0067] Optionally, the lifting device 5 includes a support plate and grippers disposed on the underside of the support plate. The support plate is rotatably connected to four guide wheels 28, and the other end of each lifting rope 7 passes around the guide wheel 28 and is connected to the lifting bracket 8.

[0068] Specifically, the grippers are arranged in pairs. When the grippers are closed, they can be inserted into the lifting interface to lift the battery pack. When the battery pack is placed on the battery mounting base 38 or the battery buffer base 31, the grippers can be opened to detach from the battery pack. The grippers can be driven by electric cylinders or gripper cylinders, etc., which are not limited or described in detail here. The lifting rope 7 passes around the guide wheel 28 and is connected to the lifting bracket 8. As the drum 22 winds up and lowers the lifting rope 7, the lifting device 5 can be lifted and lowered.

[0069] Optionally, the moving part 6 is a traveling wheel, and the two sides of the traveling wheel are provided with radially outward protruding limiting discs, which are located on both sides of the track 1.

[0070] Specifically, the limiting discs on both sides of the traveling wheel provide guidance for the interaction between the traveling wheel and track 1, which is beneficial to the stability of the traveling wheel.

[0071] Optionally, the plug-in structure 11 includes a guide sleeve 29 and a pin 30. The guide sleeve 29 and the pin 30 are respectively disposed on the lower side of the lifting bracket 8 and the upper side of the lifting device 5. The pin 30 includes a fixing part and an insertion part arranged sequentially from bottom to top. The insertion part is inserted into the guide sleeve 29 for guiding cooperation, and the fixing part is abutted against the lower end face of the guide sleeve 29.

[0072] Specifically, the diameter of the insertion part is smaller than the diameter of the fixing part. The upper end of the insertion part is a conical guide end. The guide end is inserted into the guide sleeve 29 to achieve insertion. Then, as the lifting device 5 rises, the fixing part is pressed against the lower end of the guide sleeve 29. After that, the lifting device 5 drives the lifting bracket 8 to rise together.

[0073] In this embodiment, the lifting rope 7 is a steel wire rope.

[0074] like Figure 7 and Figure 8 As shown, this utility model also provides an electric boat, comprising:

[0075] Battery compartment, which is located on the deck;

[0076] The aforementioned two-stage lifting and power swapping hoisting device;

[0077] The battery buffer base 31 is located below the extension.

[0078] Specifically, the battery compartment can be constructed by connecting the lower ends of the louvered enclosure 32 and the canopy 33 to the box beam 34 on the upper side of the louvered enclosure 32. The track beam 13 is set inside the battery compartment to support the track 1. The aforementioned two-stage lifting and swapping hoisting device moves along the track 1 to realize the hoisting and swapping of the battery pack. The battery buffer base 31 is set outside the battery compartment and below the extension section.

[0079] In this embodiment, as Figure 7 As shown, a limit block 39 is provided at the outer end of the track beam 13. The limit block 39 is used to limit the hoisting and traveling mechanism 2, thereby improving the reliability of its movement.

[0080] In this embodiment, as Figure 8 As shown, there are two battery buffer bases 31 arranged side by side, providing two buffer positions, which can improve battery swapping efficiency.

[0081] In this embodiment, as Figure 9 As shown, multiple fixed guide sleeves 35 are provided on the inner side of the canopy 33 and are inserted into the stop posts 37 on the telescopic ends of the stop cylinders 36 on both sides of the frame 3. This can further position the hoisting and traveling mechanism 2, ensure the positioning accuracy during the battery swapping process, and improve the accuracy and safety of the battery swapping. The fixed guide sleeves 35 are installed on the inner side of the canopy 33 through the mounting base 38.

[0082] In summary, during the battery swapping process for electric ships provided by this utility model, the lifting and traveling mechanism 2 travels to directly above the battery pack, the drum 22 of the lifting and lowering drive mechanism 4 reverses, the wire rope descends, and the lifting support 8 and the lifting device 5 descend by gravity. After descending to a certain height, the lifting support 8 lands on the guide frame 12 and stops descending. The lifting device 5 continues to descend to the battery lifting position, and the grippers of the lifting device 5 open to grab the battery pack. Then, the lifting device 5 rises, and when it rises to a certain height, a pin is inserted into the guide sleeve 29 below the lifting support 8, causing the lifting device 5 to lift the lifting support 8 and the battery pack. Due to the guiding effect of the slide rail 9 and slider 10, the battery pack is in a rigid upward state at this time, ensuring the stability of the battery pack during hoisting. After the battery pack is raised to the position, the hoisting and traveling mechanism 2 drives it to move. During the entire movement, the lifting device 5 and the battery pack do not swing. After moving to the top of the battery buffer base 31, the depleted battery pack is lowered. Then, the fully charged battery pack on another battery buffer base 31 is hoisted and placed in the corresponding battery mounting seat 38, completing one battery pack hoisting and battery replacement. The hoisting and battery replacement of all battery packs can be completed in this cycle.

[0083] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A two-stage lifting and power-swapping hoisting device, characterized in that, include: The track has one end located inside the battery compartment and the other end extending outside the battery compartment, forming an extension section. A hoisting and traveling mechanism includes a frame, a traveling drive mechanism, a lifting and lowering drive mechanism, and a lifting device. A movable component is located at the lower end of the frame, positioned above and movably engaging with a track. The traveling drive mechanism drives the frame to move along the track. The lifting and lowering drive mechanism is located in the middle of the frame and connected to the lifting device below it via a lifting rope, thereby lifting and lowering the lifting device. The lifting device engages with a hoisting interface on the top of the battery pack. A lifting bracket and a slide rail are located below the frame. The slide rail is connected to the frame, and the lifting bracket slides with the slide rail via a slider. The lifting device engages with the lifting bracket via a plug-in structure. The length of the slide rail is less than the lifting and lowering stroke of the lifting and lowering drive mechanism.

2. The two-stage lifting and swapping hoisting device according to claim 1, characterized in that, A track support is provided below the track, and the track support includes a track beam and track feet.

3. The two-stage lifting and swapping hoisting device according to claim 1, characterized in that, The walking drive mechanism is fixed inside the battery compartment, and the walking drive mechanism includes: A first drive motor and a first reducer are disposed between the two tracks; Two universal couplings, one end of each universal coupling is connected to both ends of the output shaft of the first reducer, and the other end of each universal coupling is provided with a drive sprocket; Two passive sprockets are respectively rotatably mounted on one side of two tracks that are close to each other; Two ring chains, each engaging with a drive sprocket and a driven sprocket, are provided. The hoisting and traveling mechanism is connected to the ring chains via connecting components.

4. The two-stage lifting and swapping hoisting device according to claim 3, characterized in that, The connecting component includes a connecting bracket and an inverted U-shaped connecting plate disposed below the connecting bracket. The connecting bracket is connected to the inner side of the lower end of the frame, and part of the annular chain is embedded in the opening of the connecting plate and fixedly connected to the connecting plate.

5. The two-stage lifting and swapping hoisting device according to claim 1, characterized in that, The take-off and landing drive mechanism includes: Two rotating shafts are arranged parallel to each other on the frame; Four drums are provided, with one drum at each end of each rotating shaft, and one end of each lifting rope is connected to one drum; A transmission structure is disposed between the two rotating shafts; A second drive motor and a second reducer are mounted on the frame, and the output end of the second reducer is connected to one of the rotating shafts.

6. The two-stage lifting and swapping hoisting device according to claim 5, characterized in that, The transmission structure includes a first sprocket, a second sprocket, and a transmission chain. The first sprocket and the second sprocket are respectively disposed in the middle of the two rotating shafts, and the transmission chain cooperates with the first sprocket and the second sprocket.

7. The two-stage lifting and swapping hoisting device according to claim 5, characterized in that, The lifting device includes a support plate and a gripper disposed on the lower side of the support plate. The support plate is rotatably connected to four guide wheels, and the other end of each lifting rope passes around the guide wheel and is connected to the lifting bracket.

8. The two-stage lifting and swapping hoisting device according to claim 1, characterized in that, The moving component is a traveling wheel, and the traveling wheel is provided with radially outward protruding limiting discs on both sides, the limiting discs being located on both sides of the track.

9. The two-stage lifting and power-swapping hoisting device according to claim 1, characterized in that, The plug-in structure includes a guide sleeve and a pin. The guide sleeve and the pin are respectively disposed on the lower side of the lifting bracket and the upper side of the lifting device. The pin includes a fixing part and an insertion part arranged sequentially from bottom to top. The insertion part is inserted into and guided by the guide sleeve, and the fixing part abuts against the lower end face of the guide sleeve.

10. An electric vessel, characterized in that, include: A battery compartment, which is located on the deck; The two-stage lifting and swapping hoisting device according to any one of claims 1-9; A battery buffer base is located below the extension.

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