Battery pack handling device and vibration testing system

Abstract

The application relates to the technical field of automobile batteries, and provides a battery pack conveying, loading and unloading device and a vibration test system, which comprises a conveying trolley and a clamp arranged in the conveying trolley and used for clamping a battery pack, the conveying trolley comprises an upper support frame, a lower support frame and a lifting assembly supported between the upper support frame and the lower support frame, the lifting assembly can drive the upper support frame to move up and down relative to the lower support frame, at least three movable hanging plates are arranged on the upper support frame, a fixed hook is downwardly suspended on each movable hanging plate, and a hanging ring matched with the fixed hook is arranged on the clamp; an opening through which the battery pack can pass is arranged in the middle of the lower support frame, and wheels are further arranged at the bottom of the lower support frame. The conveying work of battery packs of different sizes and their clamps and the auxiliary work of installing and dismounting the battery packs on the surface of a vibration test table can be simply, conveniently and safely completed.

Description

Technical Field

[0001] This invention relates to the field of automotive battery performance testing technology, and in particular to a battery pack transportation and loading / unloading device and testing system. Background Technology

[0002] In vibration testing of new energy vehicle battery packs, the battery packs and their fixtures need to be transported directly above the test bench. Since these large vibration benches are typically equipped with fixed environmental chambers, they are shielded on all sides. Therefore, it is difficult to use overhead cranes or similar equipment for hoisting the battery packs during transport. Furthermore, because the installation of the battery pack requires aligning all threaded holes with the threaded holes on the vibration bench surface, both large lifting equipment and small manual tools present challenges. This type of battery pack transportation and installation work is often carried out using forklifts and small gantry cranes, which is cumbersome and inherently dangerous.

[0003] Therefore, there is an urgent need for a battery pack transportation and auxiliary installation device that can perform such operations simply, conveniently, and safely, so as to improve the overall work efficiency of battery pack vibration testing. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: in order to overcome the shortcomings of the prior art, the present invention provides a battery pack transportation and loading / unloading device and a vibration testing system.

[0005] The technical solution adopted by this invention to solve its technical problem is: a battery pack transport and unloading device, including a transport trolley and a clamp installed inside the transport trolley for holding the battery pack. The transport trolley includes an upper support frame, a lower support frame, and a lifting assembly supported between the upper and lower support frames. The lifting assembly can drive the upper support frame to move up and down relative to the lower support frame. The upper support frame is provided with at least three movable hanging plates, each of which is provided with a downwardly suspended fixed hook. The clamp is provided with a lifting ring that matches the fixed hook. The lower support frame has an opening in the middle that allows the battery pack to pass through, and the bottom of the lower support frame is also provided with wheels. Preferably, the wheels are omnidirectional wheels.

[0006] Furthermore, the lifting assembly includes multiple hydraulic cylinders, hydraulic lines, a distribution valve, and a hydraulic pump. The multiple hydraulic cylinders are evenly supported circumferentially between the upper support frame and the lower support frame, and the hydraulic pump is connected to the hydraulic cylinders through the hydraulic lines and the distribution valve to control the lifting of the hydraulic cylinders.

[0007] Preferably, the hydraulic cylinder is a single-acting hydraulic cylinder or a double-acting hydraulic cylinder.

[0008] Furthermore, to facilitate adjustment of the battery pack's installation position on the vibration table, the upper support frame is provided with several hanging plate mounting holes. The spacing between these mounting holes is the same as the spacing of the mounting holes on the vibration table. Because the holes are spaced identically, adjustment only requires aligning the vertically for secure installation.

[0009] Furthermore, to facilitate the installation and fixing of other components, the lower support frame is provided with several fixing holes. Preferably, the fixing holes can be threaded holes, and the spacing between the fixing holes is the same as the spacing between the mounting holes on the vibration table.

[0010] Furthermore, to facilitate operation, a hand-operated frame is also included. The hand-operated frame is located on one side of the transport trolley and is used by the operator to hold it, allowing for both pushing and pulling.

[0011] A battery pack vibration testing system includes the aforementioned battery pack transport and unloading device, an environmental chamber, and a vibration table. The environmental chamber has a closed structure on all four sides and a door. The vibration table is recessed inside the environmental chamber, with its surface flush with the floor of the environmental chamber, or the height H1 of the vibration table surface above the floor of the environmental chamber is less than the height H2 of the chassis of the battery pack transport and unloading device. In use, the battery pack is transported to the top of the vibration table using the battery pack transport and unloading device, and the position of the battery pack is adjusted by the battery pack transport and unloading device to fix the battery pack in a suitable position on the vibration table.

[0012] The beneficial effects of this invention are as follows: The battery pack transportation and unloading device and testing system provided by this invention can easily, conveniently, and safely complete the transportation of battery packs of different sizes and their fixtures, as well as assist in the installation and disassembly of the vibration test bench. It solves the problems of difficulty, cumbersomeness, and danger in installing battery packs on vibration test benches, especially those with fixed environmental chambers. After the experiment, the device can also assist in the disassembly, transportation, and storage of battery packs and their fixtures, greatly improving the overall efficiency of battery pack vibration testing. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the battery pack vibration testing system of the present invention.

[0015] Figure 2 yes Figure 1 A top-view structural diagram.

[0016] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of AA.

[0017] Figure 4This is a schematic diagram of the battery pack transport and loading / unloading device of the present invention.

[0018] Figure 5 yes Figure 4 A magnified structural diagram of point A in the middle.

[0019] Figure 6 yes Figure 4 A schematic diagram of the cross-sectional structure.

[0020] In the diagram: 100, Battery pack transport and loading / unloading device; 200, Environmental chamber; 201, Chamber door; 300, Vibration table; 1, Battery pack; 2, Clamp; 3, Upper support frame; 4, Lower support frame; 5, Movable hanging platform; 6, Fixed hook lock; 7, Lifting ring; 8, Opening; 9, Wheel; 10, Hydraulic cylinder; 11, Hydraulic pipeline; 12, Distribution valve; 13, Hydraulic pump; 14, Hanging platform mounting hole; 15, Hand push frame; 16, Fixing hole. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0022] like Figures 1-3 As shown, a battery pack vibration testing system of the present invention includes a battery pack transport and unloading device 100, an environmental chamber 200, and a vibration table 300. The environmental chamber 200 is a closed structure with a door 201 for opening and closing. The vibration table 300 is located inside the environmental chamber 200 and is recessed within the chamber, ensuring that the table surface is flush with the floor of the environmental chamber 200, or that the height H1 of the table surface above the floor is less than the height H2 of the chassis of the battery pack transport and unloading device 100. This ensures that the battery pack transport and unloading device 100 spans the vibration table 300, facilitating the placement of the battery pack 1. In use, the battery pack transport and unloading device 100 transports the battery pack 1 to the top of the vibration table 300, and adjusts the position of the battery pack 1 to secure it in a suitable location on the vibration table 300.

[0023] like Figure 4As shown, the battery pack transport and unloading device 100 includes a transport trolley and a clamp 2. The transport trolley includes an upper support frame 3, a lower support frame 4, and a lifting assembly supporting the upper support frame 3 and the lower support frame 4. The lifting assembly can drive the upper support frame 3 to move up and down relative to the lower support frame 4. Both the upper support frame 3 and the lower support frame 4 are rectangular frame structures. The upper support frame 3 is provided with at least three movable hanging plates 5. In this embodiment, there are four movable hanging plates 5. Each movable hanging plate 5 is equipped with a downward-hanging fixing hook 6. The clamp 2 generally has different structures depending on the model of the battery pack 1. The battery pack 1 has through holes distributed on the upper and lower sides, and the clamp 2 has threaded holes at the corresponding points. Then, long bolts are screwed on from the bottom of the battery pack 1 to fix the clamp 2 and the battery pack 1. The clamp 2 is equipped with a lifting ring 7 that matches the fixing hook. In use, the hook at the end of the fixing hook 6 hooks into the ring hole of the lifting ring 7. The lower support frame 4 has an opening 8 in the middle that allows the battery pack 1 to pass through, and the bottom of the lower support frame 4 is also equipped with wheels 9. Preferably, the wheels 9 are omnidirectional wheels.

[0024] The lifting assembly can be implemented in various ways, such as automatic methods like lead screw assemblies and cylinder assemblies, and manual methods like screw assemblies. In this embodiment, the lifting assembly is implemented hydraulically, including four hydraulic cylinders 10, hydraulic lines 11, a distribution valve 12, and a hydraulic pump 13. The four hydraulic cylinders 10 are supported at the four corners between the upper support frame 3 and the lower support frame 4. The hydraulic pump 13 is connected to the hydraulic cylinders 10 through the hydraulic lines 11 and the distribution valve 12 to control the lifting and lowering of the hydraulic cylinders 10. The distribution valve 12 ensures stable pressure distribution to the four hydraulic cylinders 10. The hydraulic cylinders 10 can be single-acting or double-acting. In this embodiment, single-acting hydraulic cylinders are used to reduce costs.

[0025] To facilitate adjustment of the battery pack 1's mounting position on the vibration table 300, the upper support frame 3 is provided with several hanging plate mounting holes 14, the spacing between which is the same as the spacing of the mounting holes on the vibration table 300. With identical hole spacing, adjustment is achieved simply by aligning the holes vertically. To facilitate the installation and fixing of other components, the lower support frame 4 is provided with several fixing holes 16. Preferably, the fixing holes 16 are threaded holes, and the spacing between them is the same as the spacing of the mounting holes on the vibration table 300. For ease of operation, a hand-operated pusher 15 is also included. The hand-operated pusher 15 is located on one side of the transport trolley and is for the operator to hold, allowing for pushing and pulling.

[0026] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of the present invention. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A battery pack vibration test system, characterized by: The battery pack conveying device further comprises an environmental box and a vibration table, the battery pack conveying device comprises a conveying trolley and a clamp arranged in the conveying trolley for clamping the battery pack, the conveying trolley comprises an upper support frame, a lower support frame and a lifting assembly supported between the upper support frame and the lower support frame, the lifting assembly can drive the upper support frame to move up and down relative to the lower support frame, the upper support frame is provided with at least three movable hanging plates, each movable hanging plate is provided with a downwardly depending fixing hook, and the clamp is provided with a hanging ring matched with the fixing hook; the middle part of the lower support frame is provided with an opening through which the battery pack passes, and the bottom of the lower support frame is further provided with wheels; The upper support frame is provided with a plurality of hanging plate mounting holes, and the interval between the hanging plate mounting holes is the same as the interval of the mounting holes on the vibration table; The box body of the environmental box is a closed structure, the box body is provided with a box door, the vibration table is arranged in a sunken manner in the environmental box, and the vibration table top is flush with the ground of the environmental box, or the height H1 of the vibration table top above the ground of the environmental box is less than the height H2 of the bottom plate of the battery pack conveying device; when in use, the battery pack conveying device is used to convey the battery pack above the vibration table, and the position of the battery pack is adjusted by the battery pack conveying device. The lifting assembly comprises a plurality of hydraulic cylinders, a hydraulic pipeline, a distribution valve and a hydraulic pump, the plurality of hydraulic cylinders are uniformly supported between the upper support frame and the lower support frame in a circumferential direction, the hydraulic pump is connected to the hydraulic cylinders through the hydraulic pipeline and the distribution valve, and the lifting of the hydraulic cylinders is controlled.

2. The battery pack vibration test system of claim 1, wherein: The hydraulic cylinder is a single-acting hydraulic cylinder or a double-acting hydraulic cylinder.

3. The battery pack vibration test system of claim 1, wherein: The lower support frame is provided with a plurality of fixing holes.

4. The battery pack vibration test system of claim 1, wherein: Further comprising a hand pushing frame arranged on one side of the conveying trolley and used for being held by an operator.

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