Mobile battery replacing station

Abstract

The utility model discloses a mobile battery swap station, a towing platform is fixed on a bearing surface through supporting legs, an electric control device and a plurality of battery placing seats are preset on the towing platform, and the mobile battery swap station is characterized in that a walking hoisting device is arranged on the platform and is in communication connection with the electric control device; the walking hoisting equipment comprises a pair of rails installed on the two sides of the platform, a lifting stand column is assembled on the rails through electric rolling wheels to horizontally roll and walk, and the grabbing mechanism is connected with the lifting stand column through a telescopic cantilever. And the telescopic grabbing device grabs the heavy truck battery box to be subjected to battery replacement to the towing table, then the full-charge battery box on the grabbing table returns to the heavy truck, and the heavy truck is driven away after battery replacement is completed. And through a plurality of cyclic operations, when the full-charge box of the mobile battery swap station is replaced, the mobile battery swap station is dragged to the battery swap mother station by the trailer head to replace the full-charge box.

Description

Technical Field

[0001] The utility model relates to a mobile battery replacement station, belonging to the technical field of intelligent battery replacement design. Background Art

[0002] At present, if heavy trucks (heavy trucks) need to replace batteries during driving, they usually need to go to fixed charging and battery swapping stations. These stations are equipped with special equipment to complete the rapid replacement of batteries. However, this model has certain limitations. On the one hand, fixed charging and battery swapping stations occupy a large area and have relatively high construction and maintenance costs; on the other hand, these stations are often far away from the main driving routes, making it difficult for heavy truck drivers to easily find the nearest service point for battery replacement, thus affecting transportation efficiency and the overall logistics operation process. Therefore, although battery replacement technology provides endurance support for electric heavy trucks, the problem of infrastructure layout still needs to be further optimized to improve its practicality and convenience. Utility Model Content

[0003] The utility model aims to provide a mobile battery swap station which can be quickly transported to a designated location.

[0004] In order to achieve the above purpose, the technical solution disclosed by the utility model is as follows: a mobile battery swap station, including a movable trailer platform, the trailer platform is fixed on the bearing surface by supporting legs, the trailer platform is preset with an electric control device and a plurality of battery placement seats, a walking hoisting device for hoisting batteries between the truck and the trailer platform is provided on the platform, the walking hoisting device is communicatively connected to the electric control device, the walking hoisting device includes a pair of tracks installed on both sides of the platform, four sets of lifting columns are assembled on the tracks by electric rollers, and the grabbing mechanism is connected to the telescopic ends of the lifting columns by telescopic cantilevers. When the battery swap station moves during non-battery swap operation, the total height of the trailer platform plus the walking hoisting device is less than 4.2 meters. This design is mainly based on the fact that the battery of heavy trucks is large and high, and the hoisting equipment is often higher than 4.2 meters in the hoisting state. It is difficult to pass fixed buildings such as bridges and culverts at such a height, so we design the hoisting equipment to be lifting type, so that it can adapt to various road conditions well and facilitate users to transport battery packs to designated places.

[0005] It should be noted that the trailer platform has at least one empty battery placement seat reserved for the empty battery packs replaced by the vehicle. The trailer platform can also be connected to an external charging power source for charging the empty batteries.

[0006] Furthermore, the telescopic ends of the four groups of lifting columns are connected to each other to form a lifting column frame, and the fixed ends of the lifting columns are provided with rollers, and the rollers are transmission-connected to the motor and the motor right-angle reducer.

[0007] Furthermore, the telescopic ends of the four groups of lifting columns are connected to the telescopic ends of the screw rods or the oil cylinders.

[0008] Furthermore, the telescopic ends of the four groups of lifting columns are connected to the telescopic ends of the screw rods, and each group of lifting columns is equipped with a set of screw rod pairs; the screw rod driving head is at the end of the lifting column frame, and the screw rod nut is fixed to the fixed end of the lifting column; a set of motor reducer devices is installed on the lifting column frame, and the motor reducer devices are connected to the screw rod driving head of the lifting column frame through four power distributors; the heights of the four outer sliding columns fixed with screw rod nuts remain unchanged, so that the four screw rods can rotate synchronously without distinction, so that the lifting column frame can be lifted and lowered smoothly regardless of whether there is a load or not.

[0009] Furthermore, the telescopic cantilever is a multi-section telescopic cantilever horizontally distributed front and back. The horizontal distribution is designed to reduce the overall height of the telescopic cantilever, thereby reducing the overall height of the entire equipment. The last section of the multi-section telescopic cantilever is fixedly connected to the grasping device. The free end of the multi-section telescopic cantilever is controlled to be retracted and extended by the telescopic cantilever cylinder. The multi-section telescopic cantilever is slidably assembled with load-bearing wheels and anti-warping wheels. This is to ensure the overall stability of the telescopic cantilever when it is extended to bear weight.

[0010] Furthermore, the grabbing mechanism is mainly composed of a lifting claw synchronously driven by a cylinder.

[0011] Furthermore, the battery placement seat is provided with a pair of cylinder latches which can be accurately inserted into the standard sockets of the battery box that has been in place.

[0012] The small mobile battery swap station disclosed in the utility model can be set up near a temporary road on a construction site, or in a service area, or at a highway entrance and exit checkpoint, etc., and requires little investment, and can even be standardized to achieve mass production. It is suitable for setting up numerous mobile battery swap (charging) stations to facilitate battery swapping for new energy heavy trucks. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0014] Figure 1 , front view of the mobile battery swap station;

[0015] Figure 2 , rear view of the mobile battery swap station;

[0016] Figure 3 , left view of the mobile battery swap station;

[0017] Figure 4 , top view of the mobile battery swap station;

[0018] Figure 5 , axonometric view of mobile battery swap station (during battery swap process);

[0019] Figure 6 , front view of the battery swap station vehicle (during battery swap process);

[0020] Figure 7 , Left view of the battery swap station vehicle (during battery swapping);

[0021] Figure 8 , overhead view of the battery swap station vehicle (during the battery swap process);

[0022] Fig. 9 , axle measurement of battery swap station vehicle (during battery swap process).

[0023] In the figure: 1, mobile battery swap station; 2, towing platform; 3, mechanical support adjustment column; 4, roller; 5, right-angle reducer motor; 6, outer sliding column; 7, inner sliding column; 8, sliding column trolley; 9, lifting column frame; 10, reducer motor; 11, power distributor; 12, lead screw; 13, lead screw nut; 14, telescopic cantilever; 15, grabbing mechanism; 16, electrical box; 17, lifting ear frame; 18, lifting claw; 19, lifting claw cylinder; 20, telescopic cantilever cylinder; 21, electrical box mounting base; 22, cylinder latch; 23, oil pipe tank chain; 24, power cabinet; 25, electrical control box; 26, oil pump station; 27, heavy truck to be replaced. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings:

[0025] This embodiment proposes a mobile battery swap station that uses a trailer platform to tow a heavy truck to place several fully charged battery boxes, leaving at least 2 empty spaces. The trailer platform has several adjustable and retractable mechanical support columns that are adjusted at a reasonable height to ensure stable operation and reduce the pressure on the tires during the injection and retention period.

[0026] The trailer uses four sets of sliding columns with inner and outer arrangements. The rollers at the lower end of the outer sliding columns are driven by a motor right-angle reducer and travel on the light rail (or I-beam) track. They are connected to each other to form a mobile sliding column trolley, which carries the weight of related equipment and an entire electrical box.

[0027] The upper ends of the inner sliding columns are connected to each other to form a lifting platform. The sliding column trolley moves in the length direction of the trailer platform and the lifting platform can be raised and lowered, so that the grabbing device at the outer end of the telescopic cantilever installed on this lifting platform can realize the battery swapping task between the mobile battery swap station and the heavy truck.

[0028] The sliding column lifting platform is driven up and down by a screw rod (or oil cylinder). The four screw rods in the position shown in the figure are a synchronous drive mechanism made of the same motor reducer through four power distributors, ensuring smooth lifting and lowering with or without load.

[0029] A trailer platform 2 is used at the rear of a commercial trailer heavy truck, on which a plurality of power box mounting bases 21 are arranged. Fully charged power boxes 16 are mounted on the bases. Note that at least two empty seats are reserved for use in the power replacement process.

[0030] Four pairs of inner and outer sliding columns with a size of 200 mm are used, and the sliding clearance is as small as possible to ensure normal sliding. The lower end of the outer sliding column 6 is designed to be equipped with a roller 4 connected and driven by a right-angle reducer motor 5, and the four outer sliding columns 6 are combined into a sliding column trolley 8 that moves forward and backward on the I-beam track (the direction is the same as the length direction of the trailer).

[0031] At the same time, the upper ends of the four inner sliding columns 7 are combined into a lifting column frame 9 structure, and this column frame structure can of course be lifted and moved parallel to the two surfaces of the towing platform.

[0032] The lifting drive of the lifting column frame 9 can have two driving modes: (oil cylinder and) screw rod. The present design first adopts the screw rod driving lifting mode.

[0033] In the screw mode, each pair of slide columns is equipped with a set of screw pairs. The screw drive head is at the end of the slide column lifting column frame 9, and the screw nut 13 is on the outer column of the slide column trolley 8.

[0034] A motor reducer 10 is installed on the lifting column frame 9, and four power distributors 11 are used to respectively send the power of the reducer to the screw drive ends of the four sliding columns of the lifting column frame 9. Since the height of the four outer sliding columns 6 fixed with screw nuts 13 remains unchanged, the four screws can rotate synchronously without difference, so that the lifting column frame 9 can be lifted and lowered smoothly regardless of whether there is a load or not.

[0035] The lifting column frame 9 is designed with a total of four telescopic cantilevers 14, which are pushed by a two-stage telescopic cantilever oil cylinder 20, and the telescopic position is controlled in an orderly manner according to the principle of first extension and then retraction. At the same time, the outer half of each stage of the cantilever is a load-bearing roller, and the end of the inner half is an anti-warping roller.

[0036] At the outer end of the fourth cantilever, a flexible gravity grabbing mechanism 15 is hoisted. The top of the grabbing mechanism 15 is a rectangular plate with the same size as the rectangular hanging ear frame 17 above the battery. When the grabbing mechanism 15 is lowered, the cone guide limiters in four directions help align the top of the battery box 16, ensuring that the four hanging claws 18 of the grabbing mechanism 15 rotate smoothly and open to catch the hanging ear frame 17 of the battery box.

[0037] The four claws 18 are linked by four arc-cut grooves driven by a cylinder to ensure that the opening and contraction are absolutely synchronized. After the grabbing mechanism 15 is aligned with the lifting ear frame 17, the four claws 18 are rotated and opened synchronously under the push of the cylinder, and enter the grabbing position correctly. The lifting column frame 9 rises, grabs the power box 16, and the power is changed to enter the mobile positioning program.

[0038] The mobile battery swap station 1 is also equipped with an electronic automatic positioning system. When the heavy truck 27 to be replaced enters the station for battery replacement and enters the normal working range, the electronic positioning system will also control the movement of the sliding column trolley 8 (x direction), the telescopic cantilever 14 (y direction) and the lifting column frame 9 (z direction). The grabbing mechanism 15 is brought closer to the basic position and begins to descend and grab. At the same time, with the assistance of the flexible gravity mechanism, the empty charge box 16 on the heavy truck 27 to be replaced is correctly and reliably grabbed and moved out of the parking space and placed in the empty space of the trailer 2.

[0039] The next step of battery replacement is to grab a designated fully charged battery box 16 from the trailer 2. This step is not difficult because the battery boxes on the trailer 2 have fixed positions. The battery box can be grabbed as long as the operation is performed according to the specified data.

[0040] As long as the heavy truck does not move, the original grabbing position of the heavy truck's battery box does not change. At this time, the electronic automatic positioning system retrieves the original positioning data and can also smoothly place the fully charged battery box on the battery box base of the heavy truck to be replaced. A battery replacement process is completed.

[0041] The trailer 2 has six adjustable and retractable mechanical support adjustment columns 3 which are adjusted at a reasonable height and form a mobile battery swap station that can work smoothly. At the same time, the pressure on the tires is also reduced during the injection period.

[0042] After the mobile battery swap station 1 has replaced the battery, it is bound to go to the fixed charging and battery swap station to replace the battery. This is a back and forth and frequent trip, and there are bumps on the way. In order to ensure safety, four cylinder pins 22 are designed on the base of each battery box to prevent the battery box from tilting. They are aligned with the four standard sockets on the battery box and pushed by the cylinder to be inserted into the sockets of the battery box 16 that are already in place. Of course, when the mobile battery swap station arrives at the battery swap work site, the cylinder is operated and the pin is pulled out. This is a necessary safety production device.

[0043] During the back and forth transportation and movement of the mobile power exchange station 1, passing through bridge holes and entering tunnels, the height limit of 4.2 meters is an important design goal. During the power exchange process, the lifting column frame 9 is raised to a height of 4580mm above the ground at the highest point, and the working height is 400mm. When it stops working, the highest point is 4180mm above the ground. When the power exchange station is moved, the lifting column frame can also be lowered by 100mm, and the lowest end is 4080mm, which meets the national regulations that allow a height limit of 4.2 meters.

[0044] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technology can understand and think of any changes or substitutions within the technical scope disclosed by the present invention, which should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A mobile battery swap station, comprising a movable trailer platform, the trailer platform is fixed on a bearing surface by supporting legs, an electric control device and a plurality of battery placement seats are preset on the trailer platform, characterized in that : A walking hoisting device for hoisting batteries between the truck and the trailer platform is provided on the platform. The walking hoisting device is communicatively connected to the electronic control device. The walking hoisting device includes a pair of rails installed on both sides of the platform. Four sets of lifting columns are assembled on the rails through electric rollers. The grabbing mechanism is connected to the telescopic end of the lifting column through a telescopic cantilever. When the non-battery swapping station moves, the walking hoisting device descends to a predetermined height. At this time, the total height of the trailer platform plus the walking hoisting device is less than 4.2 meters.

2. The mobile battery swap station according to claim 1, characterized in that: The telescopic ends of the four groups of lifting columns are connected to each other to form a lifting column frame. The fixed ends of the lifting columns are provided with rollers, and the rollers are transmission-connected to the motor and the motor right-angle reducer.

3. The mobile battery swap station according to claim 2, characterized in that: The telescopic ends of the four groups of lifting columns are connected to the telescopic ends of the screw rods or the oil cylinders.

4. The mobile battery swap station according to claim 2, characterized in that: The telescopic ends of the four groups of lifting columns are connected to the telescopic ends of the screw rods, and each group of lifting columns is equipped with a set of screw rod pairs; the screw rod driving head is at the end of the lifting column frame, and the screw rod nut is fixed to the fixed end of the lifting column; a set of motor reducer devices is installed on the lifting column frame, and the motor reducer device is connected to the screw rod driving head of the lifting column frame through four power distributors.

5. The mobile battery swap station according to claim 1, characterized in that: The telescopic cantilever is a multi-section telescopic cantilever horizontally distributed front and back, the last section of the multi-section telescopic cantilever is fixedly connected to the grabbing device, the free end of the multi-section telescopic cantilever is controlled to be extended and retracted by the telescopic cantilever cylinder, and the multi-section telescopic cantilever is slidingly assembled with each other through load-bearing wheels and anti-warping wheels.

6. The mobile battery swap station according to claim 1, characterized in that: The grabbing mechanism mainly consists of a claw driven synchronously by a cylinder.

7. The mobile battery swap station according to claim 1, characterized in that The battery holder is provided with a pair of cylinder pins which can be accurately inserted into the standard sockets of the battery box which is already in place.

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