Walking mechanism and battery replacing station

Abstract

The utility model belongs to the technical field of battery replacing facilities, and discloses a walking mechanism and a battery replacing station. The walking mechanism comprises an extending piece, a walking assembly, a driving wheel, a guiding piece and a power assembly. The extension piece is used for bearing the battery replacement equipment. The walking assembly is arranged between the bearing piece and the extending piece so that the extending piece can walk on the bearing piece and can at least partially extend out of the container. The driving wheel is rotationally arranged on the extending piece. The guiding piece is arranged on the bearing piece in the length direction of the bearing piece, and the driving wheel is meshed with the guiding piece. The power assembly is arranged on the extending piece and is in transmission connection with the driving wheel so as to drive the driving wheel to roll along the guiding piece. Compared with a steel wire rope traction driving mode, the meshing transmission structure composed of the driving wheel and the guiding piece is lower in use cost under the large-load working condition, and therefore the manufacturing cost of the battery replacing station is reduced. Comprising the walking mechanism is more beneficial for mine enterprises to reduce initial investment and operation cost.

Description

Technical Field

[0001] The utility model relates to the technical field of battery swapping facilities, and in particular to a traveling mechanism and a battery swapping station. Background Art

[0002] With the rapid development of electrification in the mining and transportation industry, electric mining trucks are increasingly used in mining operations. These vehicles, with their zero emissions, low noise, and high efficiency, are gradually replacing traditional fuel-powered mining trucks. However, due to the harsh working environment and high workload of mining trucks, the demand for batteries is high, requiring frequent battery replacement to ensure continuous operation.

[0003] Traditional battery swap stations for electric mining trucks generally include a container, a load-bearing part, a battery swapping device, and a traveling mechanism. The load-bearing part is arranged in the container, the battery swapping device is arranged on the load-bearing part, and the traveling mechanism is used to drive the battery swapping device to move on the load-bearing part and extend out of the container, thereby replacing the battery pack of the electric mining truck through the battery swapping device.

[0004] Existing traveling mechanisms usually adopt a wire rope traction drive mode. However, the battery pack needs to be hoisted when the battery swap equipment is used, which makes the load of the traveling mechanism driving the battery swap equipment to move larger. The wire rope traction drive mode requires a large-diameter wire rope and a high-torque wire rope drum under large-load conditions, which increases the manufacturing cost of the battery swap station.

[0005] Therefore, the above problems need to be solved urgently. Utility Model Content

[0006] The purpose of the utility model is to provide a traveling mechanism and a battery swap station to reduce the manufacturing cost of the battery swap station, which is more conducive to reducing the initial investment and operating costs of mining enterprises.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] A walking mechanism is provided in a container and is used to drive the battery-exchanging device to walk on a carrier and extend out of the container. The walking mechanism includes:

[0009] An extension member, used for carrying the battery-swapping device;

[0010] a walking assembly, disposed between the load-bearing member and the extension member, so that the extension member can walk on the load-bearing member and can at least partially extend out of the container;

[0011] a driving wheel rotatably disposed on the extension member;

[0012] A guide member is provided on the carrier member along a length direction of the carrier member, and the driving wheel is engaged with the guide member;

[0013] A power assembly is provided on the extension member, and the power assembly is in transmission connection with the driving wheel to drive the driving wheel to roll along the guide member.

[0014] Preferably, the walking mechanism includes:

[0015] A track is provided on the carrier;

[0016] A running wheel is rotatably arranged on the extension member, and the running wheel can roll along the track.

[0017] There are multiple running wheels, and the multiple running wheels are divided into two groups of wheel sets, and the two groups of wheel sets are respectively arranged on two opposite sides of the extension member;

[0018] There are multiple tracks, and the multiple tracks are divided into two groups of rails. The two groups of wheel sets correspond to the two groups of rails in a one-to-one manner.

[0019] Preferably, the running wheel is a double-rim wheel, and the double-rim wheel includes a limiting groove arranged along its circumference;

[0020] Each group of rails includes two rails, which are arranged opposite to each other and are both located in the limiting groove.

[0021] Preferably, the guide member is a chain, and the driving wheel is a sprocket.

[0022] Preferably, the power assembly includes a servo motor and a reducer, the output shaft of the servo motor is connected to the input shaft of the reducer, and the sprocket is coaxially arranged on the output shaft of the reducer.

[0023] Preferably, the walking mechanism further comprises a tensioning assembly arranged on the bearing member, and the tensioning assembly is used to adjust the tension of the chain.

[0024] Preferably, the extension member includes a accommodating space arranged along the direction of the track, and the battery exchange device is movably arranged in the accommodating space.

[0025] Preferably, the walking mechanism further includes:

[0026] A driving wheel, rotatably disposed on the battery-exchanging device;

[0027] a guide member, provided on the extension member along the length direction of the carrier member, the driving wheel being engaged with the guide member;

[0028] A driving assembly is provided on the extension member, and the driving assembly is in transmission connection with the driving wheel to drive the driving wheel to roll along the guide member.

[0029] A battery swap station, comprising:

[0030] container;

[0031] A load-bearing member is disposed in the container;

[0032] a battery replacement device, arranged on the carrier;

[0033] The walking mechanism as mentioned above is configured to drive the battery exchange device to walk on the carrier and extend out of the container.

[0034] Beneficial effects of the utility model:

[0035] 1. Compared with the wire rope traction drive mode, the meshing transmission structure composed of the driving wheel and the guide has lower operating costs under large load conditions, thereby reducing the manufacturing cost of the battery swap station and helping mining companies reduce initial investment and operating costs.

[0036] 2. The meshing transmission structure composed of the driving wheel and the guide has high transmission efficiency and high positioning accuracy, reducing energy loss and failure points.

[0037] 3. The battery swap station including the above-mentioned traveling mechanism has lower manufacturing costs, which is more conducive to reducing initial investment and operating costs for mining companies. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the structure of the walking mechanism provided by the utility model Figure 1 ;

[0039] Figure 2 This is a schematic diagram of the structure of the walking mechanism provided by the utility model Figure 2 ;

[0040] Figure 3 This is a schematic structural diagram of the power assembly, driving wheel and guide member provided by the utility model;

[0041] Figure 4 It is a structural schematic diagram of the driving wheel, guide member, driving assembly and guide wheel provided by the utility model.

[0042] In the picture:

[0043] 100. Battery replacement equipment; 200. Carrying parts;

[0044] 1. Extension piece; 11. Accommodation space;

[0045] 2. Traveling assembly; 21. Track; 22. Traveling wheels;

[0046] 3. Driving wheel; 4. Guide member;

[0047] 5. Power assembly; 51. Servo motor; 52. Reducer;

[0048] 6. Driving wheel; 7. Guide member; 8. Driving assembly; 9. Guide wheel. DETAILED DESCRIPTION

[0049] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0050] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0051] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent three situations: the existence of a centrifugal vortex magnetic pump alone, the existence of a centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump at the same time, and the existence of a centrifugal vortex magnetic pump alone. In addition, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0052] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0053] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0054] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0055] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0056] See also Figures 1 to 4 This embodiment provides a walking mechanism, which is arranged in a container and is used to drive the battery exchange equipment 100 to walk on the carrier 200 and extend out of the container. The walking mechanism includes an extension part 1, a walking component 2, a driving wheel 3, a guide part 4 and a power component 5.

[0057] Among them, the extension member 1 is used to carry the battery exchange equipment 100. The walking component 2 is arranged between the supporting member 200 and the extension member 1, so that the extension member 1 can walk on the supporting member 200 and can at least partially extend out of the container. The driving wheel 3 is rotatably arranged on the extension member 1. The guide member 4 is arranged on the supporting member 200 along the length direction of the supporting member 200, and the driving wheel 3 is engaged with the guide member 4. The power component 5 is arranged on the extension member 1, and the power component 5 is connected to the driving wheel 3 in a transmission manner to drive the driving wheel 3 to roll along the guide member 4.

[0058] With this arrangement, the power assembly 5 drives the driving wheel 3 to roll along the guide member 4, thereby driving the extension member 1 to move on the bearing member 200. It is understood that the meshing transmission structure composed of the driving wheel 3 and the guide member 4 has a lower operating cost under high-load conditions than the wire rope traction drive method, thereby reducing the manufacturing cost of the battery swap station and helping mining companies reduce initial investment and operating costs. It is also understood that the meshing transmission structure composed of the driving wheel 3 and the guide member 4 has high transmission efficiency and high positioning accuracy, reducing energy loss and failure points.

[0059] Specifically, the running mechanism includes a track 21 and running wheels 22. The track 21 is disposed on the support member 200. The running wheels 22 are rotatably mounted on the extension member 1 and are capable of rolling along the track 21. It will be appreciated that the running wheels 22 support the extension member 1 along the track 21, thereby enabling the extension member 1 to move more smoothly. Furthermore, the running wheels 22 have a long service life due to their low friction with the track 21.

[0060] Generally speaking, the battery exchange device 100 is heavy. If the carrying capacity of the walking component 2 is not large, it is easy to malfunction. To this end, a plurality of walking wheels 22 are provided, and the plurality of walking wheels 22 are divided into two groups of wheel groups, and the two groups of wheel groups are respectively provided on opposite sides of the extension 1. A plurality of tracks 21 are provided, and the plurality of tracks 21 are divided into two groups of rails, and the two groups of wheel groups correspond one to one to the two groups of rails. With this arrangement, the two sides of the extension 1 are carried and transported by the two groups of wheel groups, and the structural strength is high.

[0061] Specifically, the running wheels 22 are double-rimmed wheels with retaining grooves arranged along their circumference. Each track set includes two rails 21, which are arranged opposite each other and located within the retaining grooves. This arrangement prevents the running wheels 22 from disengaging from the rails 21 during operation of the running mechanism, thereby improving the operating stability of the running mechanism. Of course, in other embodiments, the running wheels 22 may also be single-rimmed wheels, rimless wheels, or other structures, without specific limitation.

[0062] In this embodiment, the guide member 4 is a chain, and the driving wheel is a sprocket. It will be appreciated that the transmission structure composed of the chain and sprocket has no elastic slip and differential slip, maintaining an accurate average transmission ratio and high transmission efficiency. Furthermore, the transmission structure composed of the chain and sprocket can disperse the load, improving the overall stability and durability of the transmission system. It has a strong overload capacity and can operate effectively under low speed and heavy load. Furthermore, the chain and sprocket structure is simple and compact, occupying a small space, making it suitable for use in space-constrained environments, such as within the container of a battery swap station.

[0063] In order to prevent the sprocket from being easily detached from the chain, two guide wheels 9 are provided on both sides of the sprocket. The chain is wound around the sprocket through the front guide wheel 9 and then led out through the rear guide wheel 9, thereby increasing the number of meshing teeth between the sprocket and the chain.

[0064] Furthermore, the chain is preferably a bent plate chain. This chain has a more compact structure, with links connected by embedded hinges, resulting in a more uniform force distribution. This makes it more durable and able to withstand greater mechanical loads. Furthermore, due to its compact structure, the bent plate chain maintains better stability during high-speed movement and is less prone to jumping, thus meeting the requirements of high-speed transmission. It should be noted that in other embodiments, the driving wheel 3 and the guide member 4 may alternatively utilize any other meshing transmission structure, such as a synchronous belt and synchronous wheels, which will not be described in detail.

[0065] To further enhance the operational stability of the traveling mechanism, the traveling mechanism also includes a tensioning assembly mounted on the carrier 200, which is used to adjust the chain tension. Adjusting the chain tension through the tensioning assembly can prevent chain jumps or disengagement during operation, thereby preventing malfunctions or dangerous accidents and ensuring the safe operation of the equipment. It should be noted that the tensioning assembly can adopt any of the common sliding, elastic, or coil spring types, and the specific form can be selected based on the actual application scenario.

[0066] In this embodiment, the power assembly 5 includes a servo motor 51 and a reducer 52. The output shaft of the servo motor 51 is connected to the input shaft of the reducer 52, and the sprocket is coaxially arranged on the output shaft of the reducer 52. It can be understood that the servo motor 51 can achieve very precise positioning and motion control, has high-precision closed-loop control, and can overcome the problem of stepping out of step of the stepper motor. In addition, the servo motor 51 has a fast response speed and can make corresponding actions in a short time, which is suitable for occasions requiring fast response. Its output torque and speed are stable, not easily affected by the working environment, and have good maintainability and stability. In other embodiments, the power assembly 5 can also adopt any linear drive structure, such as a linear module.

[0067] It should be noted that the rated torque of the servo motor 51 must be greater than the torque requirement of the actual application, and the rated torque of the reducer 52 must be higher than or equal to the product of the motor's rated torque and the transmission ratio. Select a suitable servo motor 51 speed according to the application requirements, and adjust the output speed by the transmission ratio of the reducer 52. Select a servo motor 51 and a reducer 52 with higher precision to ensure the operating accuracy of the entire mechanism. Before installation, confirm that the motor and reducer 52 are intact, strictly check whether the dimensions of the connection parts match, ensure concentricity during installation, and strictly prohibit hitting with a hammer or the like to prevent damage to the bearings or gears. In addition, the specific models of the servo motor 51 and the reducer 52 are selected according to the actual application scenario and are not limited here.

[0068] It is worth noting that the containers used in battery swap stations are filled with battery packs and related components, and the internal space of the containers is very limited. To enable the traveling mechanism to fit into a smaller container, the extension 1 includes a receiving space 11 arranged along the direction of the track 21, and the battery swap device 100 is movably arranged in the receiving space 11.

[0069] Correspondingly, the walking mechanism also includes a driving wheel 6, a guide member 7 and a driving assembly 8. The driving wheel 6 is rotatably arranged on the battery exchange device 100. The guide member 7 is arranged on the extension member 1 along the length direction of the carrier 200, and the driving wheel 6 is engaged with the guide member 7. The driving assembly 8 is arranged on the extension member 1, and the driving assembly 8 is connected to the driving wheel 6 to drive the active wheel 3 to roll along the guide member 7. Such an arrangement can drive the battery exchange device 100 to walk in the accommodating space 11, thereby meeting the working requirements of the battery exchange device 100. In this embodiment, the driving wheel 6, the guide member 7 and the driving assembly 8 correspond one by one to the structural arrangement of the active wheel 3, the guide member 4 and the power assembly 5 mentioned above, so they are not repeated.

[0070] This embodiment further provides a battery swap station, which includes a container, a carrier 200, a battery swap device 100, and the above-mentioned traveling mechanism. The carrier 200 is arranged in the container. The battery swap device 100 is arranged on the carrier 200. The traveling mechanism is configured to drive the battery swap device 100 to walk on the carrier 200 and extend out of the container. It can be understood that the battery swap station including the above-mentioned traveling mechanism has a lower manufacturing cost and is more conducive to reducing initial investment and operating costs for mining companies.

[0071] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A walking mechanism, arranged in a container, for driving a battery exchange device (100) to walk on a carrier (200) and extend out of the container, characterized in that: The walking mechanism comprises: An extension member (1) for carrying the battery exchange device (100); a walking assembly (2) disposed between the carrier (200) and the extension member (1), so that the extension member (1) can walk on the carrier (200) and can at least partially extend out of the container; A driving wheel (3) is rotatably mounted on the extension member (1); A guide member (4) is provided on the carrier (200) along the length direction of the carrier (200), and the driving wheel (3) is engaged with the guide member (4); A power assembly (5) is arranged on the extension member (1), and the power assembly (5) is in transmission connection with the driving wheel (3) to drive the driving wheel (3) to roll along the guide member (4).

2. A walking mechanism according to claim 1, characterized in that: The walking mechanism comprises: A track (21) is provided on the carrier (200); A running wheel (22) is rotatably arranged on the extension member (1), and the running wheel (22) can roll along the track (21).

3. A walking mechanism according to claim 2, characterized in that: There are a plurality of running wheels (22), and the plurality of running wheels (22) are divided into two groups of wheel sets, and the two groups of wheel sets are respectively arranged on two opposite sides of the extension member (1); The rails (21) are provided in plurality, and the plurality of rails (21) are divided into two groups of rails, and the two groups of wheel sets correspond to the two groups of rails in a one-to-one manner.

4. A walking mechanism according to claim 3, characterized in that: The running wheel (22) is a double-rim wheel, and the double-rim wheel includes a limiting groove arranged along its circumference; Each group of rails comprises two rails (21), and the two rails (21) are arranged opposite to each other and are both located in the limiting groove.

5. The walking mechanism according to claim 1, characterized in that: The guide member (4) is a chain, and the driving wheel (3) is a sprocket.

6. A walking mechanism according to claim 5, characterized in that: The power assembly (5) comprises a servo motor (51) and a reducer (52), the output shaft of the servo motor (51) is connected to the input shaft of the reducer (52), and the sprocket is coaxially arranged on the output shaft of the reducer (52).

7. The walking mechanism according to claim 5, characterized in that: The walking mechanism further comprises a tensioning assembly arranged on the bearing member (200), and the tensioning assembly is used to adjust the tension of the chain.

8. The walking mechanism according to claim 3, characterized in that: The extension member (1) comprises a receiving space (11) arranged along the direction of the track (21), and the battery exchange device (100) is movably arranged in the receiving space (11).

9. The walking mechanism according to claim 1, characterized in that: The walking mechanism also includes: a driving wheel (6) rotatably mounted on the battery exchange device (100); A guide member (7) is provided on the extension member (1) along the length direction of the carrier member (200), and the driving wheel (6) is engaged with the guide member (7); A driving assembly (8) is arranged on the extension member (1), and the driving assembly (8) is connected to the driving wheel (6) in a transmission manner to drive the driving wheel (3) to roll along the guide member (7).

10. A battery swap station, characterized in that: include: container; A carrier (200) is disposed in the container; A battery replacement device (100) is arranged on the carrier (200); The walking mechanism according to any one of claims 1 to 9 is configured to drive the battery exchange device (100) to walk on the carrier (200) and extend out of the container.

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