Battery replacement equipment for mining electric truck and battery replacement method of battery replacement equipment

Abstract

The invention belongs to the technical field of battery replacing facilities, and discloses a mining electric truck battery replacing device and a battery replacing method thereof.The mining electric truck battery replacing device comprises a container, a first bearing part, a transverse moving driving mechanism, a second bearing part, a telescopic driving mechanism, a hoisting mechanism and a hoisting driving mechanism. The telescopic driving mechanism drives the second bearing part to slide along the first bearing part, so that the second bearing part partially extends out of the container and is located between the brim of the mining electric truck and the battery pack, and therefore the hoisting driving mechanism can drive the hoisting mechanism to slide to the position between the brim and the battery pack along the second bearing part; therefore, the battery can be hoisted without turning over the hat brim hoisting mechanism. The transverse moving driving mechanism drives the first bearing part to slide in the width direction of the container, the telescopic driving mechanism drives the second bearing part to slide along the first bearing part, the hoisting driving mechanism drives the hoisting mechanism to slide along the second bearing part, and accurate positioning of the hoisting mechanism can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery replacement facilities, and in particular to a battery replacement device for a mining electric truck and a battery replacement method thereof. 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 have gradually replaced traditional fuel mining trucks with their advantages of zero emissions, low noise and high efficiency. Due to the harsh working environment and high work intensity of mining trucks, the demand for batteries is high, and batteries need to be replaced frequently to ensure continuous operation.

[0003] See also Figure 1 The battery pack 400 of the mining electric truck is usually installed between the cab 100 and the carriage 200. In order to protect the battery pack 400 and the cab 100, a shielding member called a brim 300 is designed at the front of the carriage 200. The brim 300 is used to prevent ore from scattering onto the battery pack 400 or the cab 100 during loading, thus playing a protective role.

[0004] Traditional mining electric truck battery replacement equipment generally includes a track that can extend to the top of the battery pack on the mining electric truck and a hoist running along the track, so that the battery pack on the mining electric truck can be hoisted by the hoist. However, because the battery pack is located below the brim, the traditional mining truck battery replacement station needs to open the brim before performing the battery replacement operation, which makes the battery replacement operation complicated and the battery replacement efficiency low. In addition, the brim may not be opened normally due to the accumulation of ore jams, mechanical failures, etc., resulting in obstruction of the battery replacement operation and affecting production continuity. In addition, there may be safety risks in the process of opening the brim, such as the brim accidentally falling, mechanical failure, etc., which threaten the safety of the operator.

[0005] Therefore, the above problems need to be solved urgently. Summary of the invention

[0006] The purpose of the present invention is to provide a battery replacement device and a battery replacement method for a mining electric truck, so as to simplify the battery replacement operation, increase the battery replacement efficiency, and avoid possible safety risks in the process of flipping up the brim of the hat.

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

[0008] A battery replacement device for an electric mining truck, comprising:

[0009] A container, comprising a frame and a load-bearing beam arranged on the frame along the width direction thereof;

[0010] A first bearing member is slidably disposed on the load-bearing beam along the length direction of the container;

[0011] A transverse driving mechanism, configured to drive the first bearing member to slide along the length direction of the container;

[0012] A second load-bearing member, disposed on the first load-bearing member along the length direction of the container;

[0013] a telescopic driving mechanism, configured to drive the second bearing member to slide along its length direction, and the second bearing member can be partially extended out of the container;

[0014] A hoisting mechanism, disposed on the second bearing member, and used for hoisting the battery pack;

[0015] The hoisting drive mechanism is configured to drive the hoisting mechanism to slide along the length direction of the second bearing member.

[0016] Preferably, a first walking channel is formed inside the first supporting member along its length direction, and the second supporting member is arranged in the first walking channel.

[0017] Preferably, a second walking channel is formed inside the second bearing member along its length direction, and the hoisting mechanism is arranged in the second walking channel.

[0018] Preferably, the hoisting mechanism includes a winch, and the lower side of the second walking passage is open to avoid the rope of the winch.

[0019] Preferably, the first bearing member comprises:

[0020] Four first rail steels are distributed in a rectangular shape and are arranged parallel to each other;

[0021] A plurality of connecting members are distributed around the four first rail steels to connect the four first rail steels into one and enclose the first walking channel.

[0022] Preferably, a guide channel is formed between two first rail steels on the same side;

[0023] The telescopic driving mechanism further comprises running wheels respectively arranged on two opposite sides of the second bearing member, and the running wheels on both sides respectively roll along two guide channels on both sides.

[0024] Preferably, the telescopic driving mechanism comprises:

[0025] A chain, arranged on the inner wall of the first walking channel;

[0026] a sprocket engaged with the chain;

[0027] A power member is disposed on the second bearing member, and the power member is used to drive the sprocket to rotate so that the sprocket rolls along the chain.

[0028] Preferably, the transverse driving mechanism comprises:

[0029] A power member, disposed on the frame, and configured to provide a driving force;

[0030] A transfer member is arranged on the frame, the transfer member comprises an input end, a first output end and a second output end, the power member is in transmission connection with the input end, and the driving force provided by the power member is distributed by the transfer member to the first output end and the second output end for output;

[0031] A first moving member, disposed on the frame, capable of reciprocating along a preset direction, one end of the first bearing member being connected to the first moving member;

[0032] a first transmission assembly, wherein the first output end is transmission-connected to the first moving member via the first transmission assembly to drive the first moving member to move;

[0033] A second moving member is disposed on the frame, the second moving member can reciprocate along the preset direction, and the other end of the first bearing member is connected to the second moving member;

[0034] The second transmission component, the second output end is transmission-connected with the second moving part via the second transmission component to drive the second moving part to move.

[0035] Preferably, the first transmission assembly includes a plurality of transmission shafts and a plurality of couplings arranged in sequence, any two adjacent transmission shafts are connected via a coupling, the transmission shaft at the first position is connected to the first output end via a coupling, and the transmission shaft at the last position is connected to the first moving part via a coupling.

[0036] A battery replacement method based on the above-mentioned battery replacement device for mining electric trucks is characterized by comprising the following steps:

[0037] The mining electric truck drives to the battery replacement station;

[0038] The transverse driving mechanism drives the first bearing member to slide so that the first bearing member is aligned with the position where the battery pack on the mining electric truck is located;

[0039] The telescopic driving mechanism drives the second bearing member to slide, so that the second bearing member partially extends out of the first bearing member and is located between the brim of the mining electric truck and the battery pack;

[0040] The hoisting drive mechanism drives the hoisting mechanism to slide so that the hoisting mechanism is located above the battery pack of the mining electric truck;

[0041] The hoisting mechanism hoists the battery pack of the mining electric truck;

[0042] The transverse drive mechanism, the telescopic drive mechanism and the hoisting drive mechanism cooperate with each other to transport the battery pack of the mining electric truck hoisted by the hoisting mechanism to the battery position in the container for placing the low-power battery pack;

[0043] The lifting mechanism lowers the battery pack of the mining electric truck;

[0044] The transverse drive mechanism, the telescopic drive mechanism and the hoisting drive mechanism cooperate with each other to drive the hoisting mechanism to a battery position in the container for placing a fully charged battery pack;

[0045] The hoisting mechanism hoists the fully-charged battery pack;

[0046] The transverse driving mechanism, the telescopic driving mechanism and the hoisting driving mechanism cooperate with each other to drive the hoisting mechanism to a position above the battery pack on the mining electric truck;

[0047] The hoisting mechanism places the fully-charged battery pack on the mining battery truck;

[0048] The hoisting drive mechanism drives the hoisting mechanism to reset;

[0049] The telescopic driving mechanism drives the second bearing member to reset;

[0050] The transverse driving mechanism drives the first bearing member to reset.

[0051] Beneficial effects of the present invention:

[0052] The present invention drives the second bearing member to slide along the first bearing member through a telescopic drive mechanism so that the second bearing member partially extends out of the container and is located between the brim of the mining electric truck and the battery pack, so that the lifting drive mechanism can drive the lifting mechanism to slide along the second bearing member to between the brim and the battery pack, and then the battery can be lifted without opening the brim lifting mechanism. It can also be understood that the precise positioning of the lifting mechanism can be achieved by the transverse drive mechanism driving the first bearing member to slide along the width direction of the container, the telescopic drive mechanism driving the second bearing member to slide along the first bearing member (along the length direction of the container), and the lifting drive mechanism driving the lifting mechanism to slide along the second bearing member.

[0053] In addition, there is no need to open the brim when changing batteries. On the one hand, it can effectively simplify the battery changing operation and improve the battery changing efficiency. On the other hand, it can avoid the problem that the brim may not be able to be opened normally due to the accumulation of ore jams, mechanical failures, etc., resulting in obstruction of battery changing operations and affecting production continuity. In addition, it can avoid possible safety risks in the process of opening the brim, such as accidental falling of the brim, mechanical failures, etc., which threaten the safety of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a schematic diagram of the structure of an electric mining truck;

[0055] Figure 2 It is a structural schematic diagram of a mining electric truck when using the mining electric truck battery replacement device provided by the present invention to replace the battery;

[0056] Figure 3 It is a structural schematic diagram of the battery replacement equipment for mining electric trucks of the present invention;

[0057] Figure 4 It is a structural schematic diagram of the first bearing member, the second bearing member, the telescopic driving mechanism, the hoisting mechanism and the hoisting driving mechanism provided by the present invention;

[0058] Figure 5 It is a structural schematic diagram of the telescopic drive mechanism provided by the present invention;

[0059] Figure 6 is a structural schematic diagram of a first bearing member provided by the present invention;

[0060] Figure 7 is a structural schematic diagram of a second bearing member provided by the present invention;

[0061] Figure 8 It is a structural schematic diagram of the transverse driving mechanism provided by the present invention;

[0062] Fig. 9 yes Figure 8 Enlarged view of point A in the middle.

[0063] In the figure:

[0064] 100, cockpit; 200, compartment; 300, hat brim; 400, battery pack;

[0065] 1. Container; 11. Frame; 12. Load-bearing beam;

[0066] 2. First bearing member; 21. First walking channel; 22. First rail steel; 23. Connecting member; 24. Guide channel;

[0067] 3. Transverse drive mechanism; 31. Power member; 32. Transfer member; 33. First moving member; 34. First transmission assembly; 341. Transmission shaft; 342. Coupling; 35. Second moving member; 36. Second transmission assembly;

[0068] 4. Second bearing member; 41. Second walking channel; 42. Second rail steel; 43. Adapter;

[0069] 5. telescopic driving mechanism; 51. chain; 52. sprocket; 53. power part;

[0070] 6. Hoisting mechanism; 61. Winch;

[0071] 7. Hoisting drive mechanism. DETAILED DESCRIPTION

[0072] Before any embodiments of the 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 above drawings.

[0073] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0074] In the present application, the term "and / or" is a description of the association relationship of associated objects, indicating that three relationships may exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent: 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 the present application generally indicates that the objects associated before and after are in an "and / or" relationship.

[0075] In the present 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, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0076] In the present application, it will be understood by those of ordinary skill 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 tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. 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).

[0077] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0078] 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 another element "upper" or "lower", but also indirectly connected to another 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, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0079] See also Figures 1 to 9, this embodiment provides a battery replacement device for an electric truck for mining, including a container 1, a first bearing member 2, a transverse drive mechanism 3, a second bearing member 4, a telescopic drive mechanism 5, a hoisting mechanism 6 and a hoisting drive mechanism 7. The container 1 includes a frame 11 and a load-bearing beam 12 arranged on the frame 11 along its width direction. The first bearing member 2 is slidably arranged on the load-bearing beam 12 along the length direction of the container 1. The transverse drive mechanism 3 is configured to drive the first bearing member 2 to slide along the length direction of the container 1. The second bearing member 4 is arranged on the first bearing member 2 along the length direction of the container 1. The telescopic drive mechanism 5 is configured to drive the second bearing member 4 to slide along its length direction, and the second bearing member 4 can partially extend out of the container 1. The hoisting mechanism 6 is arranged on the second bearing member 4, and the hoisting mechanism 6 is used to hoist the battery pack 400. The hoisting drive mechanism 7 is configured to drive the hoisting mechanism 6 to slide along the length direction of the second bearing member 4.

[0080] The battery replacement method based on the above-mentioned mining electric truck battery replacement equipment includes the following steps:

[0081] The mining electric truck drives to the battery replacement station;

[0082] The transverse driving mechanism 3 drives the first bearing member 2 to slide, so that the first bearing member 2 is aligned with the position of the battery pack 400 on the mining electric truck;

[0083] The telescopic driving mechanism 5 drives the second bearing member 4 to slide, so that the second bearing member 4 partially extends out of the first bearing member 2 and is located between the brim 300 of the mining electric truck and the battery pack 400;

[0084] The hoisting drive mechanism 7 drives the hoisting mechanism 6 to slide, so that the hoisting mechanism 6 is located above the battery pack 400 of the mining electric truck;

[0085] The hoisting mechanism 6 lifts the battery pack 400 of the mining electric truck;

[0086] The transverse drive mechanism 3, the telescopic drive mechanism 5 and the hoisting drive mechanism 7 cooperate with each other to transport the battery pack 400 of the mining electric truck hoisted by the hoisting mechanism 6 to the battery position in the container 1 for placing the low-power battery pack 400;

[0087] The lifting mechanism 6 lowers the battery pack 400 of the mining electric truck;

[0088] The transverse drive mechanism 3, the telescopic drive mechanism 5 and the hoisting drive mechanism 7 cooperate with each other to drive the hoisting mechanism 6 to the battery position in the container 1 for placing the fully charged battery pack 400;

[0089] The hoisting mechanism 6 lifts the fully-charged battery pack 400;

[0090] The traverse drive mechanism 3, the telescopic drive mechanism 5 and the hoisting drive mechanism 7 cooperate with each other to drive the hoisting mechanism 6 to a position above the battery pack 400 on the mining electric truck;

[0091] The hoisting mechanism 6 places the fully-charged battery pack 400 on the mining battery truck;

[0092] The hoisting drive mechanism 7 drives the hoisting mechanism 6 to reset;

[0093] The telescopic driving mechanism 5 drives the second bearing member 4 to reset;

[0094] The transverse driving mechanism 3 drives the first supporting member 2 to reset.

[0095] It can be understood that the telescopic drive mechanism 5 drives the second bearing member 4 to slide along the first bearing member 2 so that it partially extends out of the container 1 and is located between the brim 300 and the battery pack 400 of the mining electric truck, so that the lifting drive mechanism 7 can drive the lifting mechanism 6 to slide along the second bearing member 4 to between the brim 300 and the battery pack 400, and then the lifting mechanism 6 can complete the lifting of the battery without opening the brim 300. It can also be understood that the precise positioning of the lifting mechanism 6 can be achieved by the transverse drive mechanism 3 driving the first bearing member 2 to slide along the width direction of the container 1, the telescopic drive mechanism driving the second bearing member 4 to slide along the first bearing member 2 (along the length direction of the container 1), and the lifting drive mechanism 7 driving the lifting mechanism 6 to slide along the second bearing member 4.

[0096] In addition, there is no need to open the brim 300 when changing the battery. On the one hand, it can effectively simplify the battery changing operation and improve the battery changing efficiency. On the other hand, it can avoid the problem that the brim 300 may not be able to be opened normally due to the accumulation of ore jams, mechanical failures, etc., resulting in obstruction of the battery changing operation and affecting production continuity. In addition, it can avoid the safety risks that may exist in the process of opening the brim 300, such as the accidental falling of the brim 300, mechanical failures, etc., which threaten the safety of the operator.

[0097] The container 1 used in the battery swap station is usually completely filled with battery packs 400 and related components. Therefore, in order to improve the utilization rate of the internal space of the container 1, a first walking channel 21 is formed inside the first carrier 2 along its length direction, and the second carrier 4 is arranged in the first walking channel 21, so as to make full use of the internal space of the first carrier 2 and make the structure more compact.

[0098] Specifically, the first bearing member 2 includes four first rail steels 22 and a plurality of connecting members 23. The four first rail steels 22 are arranged in a rectangular parallelepiped shape and are arranged parallel to each other. The plurality of connecting members 23 are arranged around the four first rail steels 22 to connect the four first rail steels 22 into one body and enclose the first walking channel 21.

[0099] It is understandable that the first rail steel 221 is a standard profile; it has the following advantages: first, it has high strength, high hardness and good wear resistance, and can withstand heavy loads and long spans; second, the first rail steel 22 has high straightness and dimensional accuracy, which meets the accuracy requirements of the first bearing member 2; third, the first rail steel 22 is a standard profile that is easy to purchase on the market, and the price is relatively low, which reduces the material cost. In addition, the use of standard profiles can avoid secondary processing, such as cutting and drilling, and reduce processing difficulty and cost. In addition, by utilizing the standard size of standard profiles, the first bearing member 2 is manufactured by cutting, assembling, and welding, shortening the manufacturing cycle, that is, simplifying the manufacturing process, reducing processing and labor costs, and the standardized and modular design improves manufacturing and installation efficiency.

[0100] It should be noted that, in this embodiment, the first rail steel 22 is a standard rail steel of 50 kg / m, and the material is U71Mn or 50Mn. In addition, a plurality of connectors 23 connect the four first rail steels 22 into one, and form a box-shaped section, thereby improving the torsional rigidity of the first bearing member 2, preventing the first bearing member 2 from twisting during use, improving the overall stability of the first bearing member 2, and ensuring the running accuracy and safety of the second bearing member 4.

[0101] In order to improve the smoothness of the sliding of the second bearing member 4 in the first walking channel 21, the telescopic driving mechanism 5 also includes walking wheels respectively arranged on the opposite sides of the second bearing member 4, and correspondingly, a guide channel 24 is formed between the two first rail steels 22 on the same side. The walking wheels on both sides roll along the two guide channels 24 on both sides respectively. In this way, the second bearing member 4 can move more smoothly by guiding the rolling of the walking wheels through the guide channels 24. Specifically, each first rail steel 22 has a guide rail that cooperates with the walking wheel, and the guide channel 24 is composed of two guide rails of the two first rail steels 22, and the two guide rails cooperate with the opposite sides of the walking wheel respectively.

[0102] In this embodiment, the telescopic drive mechanism 5 includes a chain 51, a sprocket 52 and a power member 53. The chain 51 is arranged on the inner wall of the first walking channel 21. The sprocket 52 is meshed with the chain 51. The power member 53 is arranged on the second bearing member 4, and the power member 53 is used to drive the sprocket 52 to rotate so that the sprocket 52 rolls along the chain 51. In this way, when the power drives the sprocket 52 to rotate, the sprocket 52 will roll along the chain 51, thereby driving the second bearing member 4 to move. It can be understood that the telescopic drive mechanism 5 is simple in structure and stable in operation.

[0103] It should be noted that the chain 51 is preferably a bent plate chain, which has a more compact structure, and the links are connected by embedded hinges, so that the force is more uniform, which makes it more durable and can withstand greater mechanical loads. In addition, due to the compact structure of the bent plate chain, the bent plate chain can better maintain stability during high-speed movement, is not prone to jumping, and meets the needs of high-speed transmission. It should also be noted that the power member 53 is preferably a servo motor, and the sprocket 52 is coaxially arranged on the output shaft of the servo motor. The servo motor 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 stepping motor. In addition, the servo motor has a fast response speed and can make corresponding actions in a short time, which is suitable for occasions that require rapid 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 telescopic drive mechanism 5 can also adopt any linear drive structure, such as a linear module. In addition, in this embodiment, the specific structure of the hoisting drive mechanism 7 is consistent with the specific structure of the above-mentioned telescopic drive mechanism 5, so it is not repeated.

[0104] In order to further improve the utilization rate of the internal space of the container 1 , a second walking passage 41 is formed inside the second bearing member 4 along its length direction, and the hoisting mechanism 6 is arranged in the second walking passage 41 .

[0105] In this embodiment, the second bearing member 4 also includes four second rail steels 42 and a plurality of adapters 43, and the four second rail steels 42 are distributed in a rectangular shape and are arranged parallel to each other. A plurality of adapters 43 are distributed on the circumference of the four second rail steels 42 to connect the four second rail steels 42 into one body and surround the second walking channel 41. It can be understood that the second rail steel 42 is a standard material, which reduces the use of customized profiles, and the material is easy to obtain and low in price, and simplifies the manufacturing process, reducing processing and labor costs. It can also be understood that a plurality of adapters 43 are distributed on the circumference of the four second rail steels 42 to connect the four second rail steels 42 into one body to form an open or semi-closed cross-section, which is convenient for the hoisting mechanism 6 to operate inside. In addition, it can also improve the torsion resistance, overall stability, and prevent deformation and instability. Of course, the optimization of the cross-sectional size also reduces the deadweight of the second bearing member 4 and reduces the load on the driving structure that drives its movement.

[0106] In addition, the second bearing member 4 and the first bearing member 2 also adopt standard profiles and modular design, which is convenient for cutting, assembling and welding, and has a simple structure and a small number of parts, which reduces the difficulty and time of installation. The second bearing member 4 and the first bearing member 2 have slightly different functional focuses. The first bearing member 2 mainly focuses on carrying and supporting the entire equipment, which requires high bearing capacity and high rigidity. The second bearing member 4 focuses on realizing the telescopic function and the operation of the hoisting mechanism 6, and needs to take into account lightweight and spatial adaptability. Preferably, the first bearing member 2 has a larger cross-sectional size and adopts a closed box-type cross-section to enhance the bending and torsion resistance. The second bearing member 4 has a smaller cross-sectional size and adopts an open cross-section to adapt to spaces with limited height and width. It should be noted that the four first rail steels 22 and multiple connectors 23, the four second rail steels 42 and multiple adapters 43 are all connected by welding, and the connection is reliable and easy to operate.

[0107] Generally speaking, the space between the brim 300 and the battery pack 400 of a mining electric truck is relatively small. If the structural height of the second bearing member 4 is relatively high, it may interfere with the brim 300 or the battery pack 400, and the battery cannot be replaced normally. For this reason, in this embodiment, the thickness of the second bearing member 4 is designed to be approximately 300 mm to adapt to highly restricted spaces. It should also be noted that through mechanical calculations and optimized design, the deflection and stress of the second bearing member 4 meet the use requirements when the extended length reaches 5 meters and the load is 10 tons.

[0108] In particular, the hoisting mechanism 6 includes a winch 61, and the lower side of the second walking channel 41 is open to avoid the rope of the winch 61. It can be understood that the winch 61 is driven by a motor, has high efficiency, can quickly complete the lifting task, and greatly improves the working efficiency. In addition, the winch 61 is light and easy to install, has strong mobility, and is suitable for various working conditions. It should be noted that in this embodiment, the lifting ratio of the winch 61 is 1:4, the design load is 10 tons, and the lifting stroke is about 500mm. It should also be noted that the end of the rope of the winch 61 is provided with a grabbing portion for grabbing the battery pack 400 according to the structure of the battery pack 400. The grabbing portion is generally provided as a hook, which will not be described in detail.

[0109] Since the first carrier 2 is relatively long, the transverse driving mechanism 4 needs to drive multiple positions of the first carrier 2 simultaneously to ensure the movement stability of the first carrier 2. In this embodiment, the transverse driving mechanism 3 includes a power member 53, a transfer member 32, a first moving member 33, a first transmission assembly 34, a second moving member 35 and a second transmission assembly 36.

[0110] Specifically, the power member 53 is arranged on the frame 11, and the power member 53 is configured to provide a driving force. The transfer member 32 is arranged on the frame 11, and the transfer member 32 includes an input end, a first output end, and a second output end. The power member 53 is transmission-connected with the input end, and the driving force provided by the power member 53 is distributed to the first output end and the second output end by the transfer member 32. The first moving member 33 is arranged on the frame 11, and the first moving member 33 can reciprocate along a preset direction, and one end of the first bearing member 2 is connected to the first moving member 33. The first output end is transmission-connected with the first moving member 33 via the first transmission assembly 34 to drive the first moving member 33 to move. The second moving member 35 is arranged on the frame 11, and the second moving member 35 can reciprocate along a preset direction, and the other end of the first bearing member 2 is connected to the second moving member 35. The second output end is transmission-connected with the second moving member 35 via the second transmission assembly 36 to drive the second moving member 35 to move. It should be noted that in this embodiment, the preset direction is the width direction of the container 1.

[0111] In practical applications, the driving force provided by the power member 53 is synchronously outputted through the first output end and the second output end of the transfer member 32, and then the first output end and the second output end respectively drive the first moving member 33 and the second moving member 35 to move, so as to drive the two ends of the first bearing member 2 to move synchronously. Compared with the structure in the prior art that uses multiple driving components to drive multiple positions of the first bearing member 2 to move synchronously, such a configuration has a small synchronization error and stable operation, and can ensure the reliability and safety of the first bearing member 2.

[0112] In this embodiment, the power part 53 is a servo motor, and the transfer part 32 is a dual-output reducer. The servo motor is installed on the dual-output reducer to form a drive part, thereby making the structure of the transverse drive mechanism 3 more compact, reducing the space occupied in the container 1, and having high applicability.

[0113] It is worth noting that the coordination of servo motors and dual-output reducers needs to consider torque, speed, accuracy, specifications, and installation steps. Among them, the rated torque of the servo motor must be greater than the torque requirement of the actual application, and the rated torque of the reducer must be higher than or equal to the product of the rated torque of the motor multiplied by the transmission ratio. Select the appropriate servo motor speed according to the application requirements, and adjust the output speed by the transmission ratio of the reducer. Select servo motors and reducers with higher precision to ensure the operating accuracy of the entire system. Before installation, confirm that the motor and reducer are intact, strictly check whether the dimensions of the connection parts match, ensure concentricity during installation, and it is strictly forbidden to hit with a hammer to prevent damage to the bearings or gears. In addition, the specific models of servo motors and dual-output reducers are selected according to the actual application scenarios, and are not limited here.

[0114] Generally speaking, the container 1 used in the battery swap station is completely filled with the battery pack 400 and related components. Therefore, in order to improve the convenience of maintaining the drive unit, the drive unit is located at the top of the container 1, so that when maintaining the drive unit, there is no need to disassemble the battery pack 400 and related components in the container 1, which is more convenient to operate.

[0115] In this embodiment, the structures of the first transmission assembly 34 and the second transmission assembly 36 are consistent, and the structure of the first transmission assembly 34 is taken as an example for explanation below.

[0116] The first transmission assembly 34 includes a plurality of transmission shafts 341 and a plurality of couplings 342 arranged in sequence. Any two adjacent transmission shafts 341 are connected by a coupling 342. The transmission shaft 341 located in the first position is connected to the first output end by a coupling 342, and the transmission shaft 341 located in the last position is connected to the first moving member 33 by a coupling 342. Due to manufacturing and installation reasons, there may be certain errors between the multiple connected transmission parts. In this embodiment, there may be certain errors between any two adjacent transmission shafts 341, the transmission shaft 341 located in the first position and the first output end, and the transmission shaft 341 located in the last position and the first moving member 33. Therefore, a coupling 342 is provided between them, which can compensate for axial errors and buffer load impacts. In addition, the use of the coupling 342 can easily disassemble and maintain the drive unit without affecting the adjacent transmission shafts 341.

[0117] In particular, any one of the transmission shafts 341 can be configured as a universal joint. This configuration can adapt to the height difference between the drive unit and the first moving part 33, and achieve reliable transmission without additionally increasing the height of the container 1, that is, to achieve reliable transmission in a limited space. It can be understood that, on the one hand, the universal joint can compensate for the axis deviation caused by manufacturing and installation, ensuring the continuity and stability of the transmission system. On the other hand, the use of the universal joint reduces the requirements for installation accuracy, simplifies the installation process, and improves the assemblability of the equipment. In this embodiment, the first transmission assembly 34 includes three transmission shafts 341, of which the first and last two transmission shafts 341 are universal joints.

[0118] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A battery replacement device for an electric mining truck, characterized in that: include: A container (1) comprises a frame (11) and a load-bearing beam (12) arranged on the frame (11) along its width direction; A first load-bearing member (2) is slidably disposed on the load-bearing beam (12) along the length direction of the container (1); A transverse driving mechanism (3) configured to drive the first bearing member (2) to slide along the length direction of the container (1); A second load-bearing member (4) is arranged on the first load-bearing member (2) along the length direction of the container (1); a telescopic driving mechanism (5) configured to drive the second bearing member (4) to slide along its length direction, and the second bearing member (4) can be partially extended out of the container (1); A hoisting mechanism (6) is arranged on the second bearing member (4), and the hoisting mechanism (6) is used for hoisting the battery pack (400); The lifting drive mechanism (7) is configured to drive the lifting mechanism (6) to slide along the length direction of the second bearing member (4).

2. The battery replacement device for an electric mining truck according to claim 1, characterized in that: A first walking channel (21) is formed inside the first bearing member (2) along its length direction, and the second bearing member (4) is arranged in the first walking channel (21).

3. The battery replacement device for an electric mining truck according to claim 1, characterized in that: A second walking channel (41) is formed inside the second bearing member (4) along its length direction, and the hoisting mechanism (6) is arranged in the second walking channel (41).

4. The battery replacement device for an electric mining truck according to claim 3 is characterized in that: The hoisting mechanism (6) comprises a winch (61), and the lower side of the second walking passage (41) is open to avoid the rope of the winch (61).

5. The battery replacement device for an electric mining truck according to claim 2, characterized in that: The first bearing member (2) comprises: Four first rail steels (22) are distributed in a rectangular parallelepiped shape and are arranged parallel to each other; A plurality of connecting members (23) are distributed around the four first rail steels (22) to connect the four first rail steels (22) into one and enclose the first walking channel (21).

6. The battery replacement device for an electric mining truck according to claim 5, characterized in that: A guide channel (24) is formed between two first rail steels (22) on the same side; The telescopic driving mechanism (5) further comprises running wheels respectively arranged on two opposite sides of the second bearing member (4), and the running wheels on the two sides respectively roll along the two guide channels (24) on the two sides.

7. The battery replacement device for an electric mining truck according to claim 6, characterized in that: The telescopic driving mechanism (5) comprises: A chain (51) is arranged on the inner wall of the first walking channel (21); A sprocket (52) meshing with the chain (51); A power member (53) is arranged on the second bearing member (4), and the power member (53) is used to drive the sprocket (52) to rotate so that the sprocket (52) rolls along the chain (51).

8. The battery replacement device for an electric mining truck according to claim 1, characterized in that: The transverse driving mechanism (3) comprises: A power member (53) is disposed on the frame (11), and the power member (53) is configured to provide a driving force; A transfer member (32) is arranged on the frame (11), the transfer member (32) comprises an input end, a first output end and a second output end, the power member (53) is in transmission connection with the input end, and the driving force provided by the power member (53) is distributed by the transfer member (32) to the first output end and the second output end for output; A first moving member (33) is arranged on the frame (11), the first moving member (33) is capable of reciprocating along a preset direction, and one end of the first bearing member (2) is connected to the first moving member (33); A first transmission component (34), wherein the first output end is transmission-connected to the first moving member (33) via the first transmission component (34) to drive the first moving member (33) to move; a second moving member (35) disposed on the frame (11), the second moving member (35) being capable of reciprocating along the preset direction, the other end of the first bearing member (2) being connected to the second moving member (35); A second transmission component (36), wherein the second output end is transmission-connected to the second moving member (35) via the second transmission component (36) to drive the second moving member (35) to move.

9. The battery replacement device for an electric mining truck according to claim 8, characterized in that: The first transmission assembly (34) comprises a plurality of transmission shafts (341) and a plurality of couplings (342) arranged in sequence, any two adjacent transmission shafts (341) are connected via a coupling (342), the transmission shaft (341) at the first position is connected to the first output end via a coupling (342), and the transmission shaft (341) at the last position is connected to the first moving part (33) via a coupling (342).

10. A battery replacement method based on the battery replacement equipment for mining electric trucks according to any one of claims 1 to 9, characterized in that: The following steps are involved: The mining electric truck drives to the battery replacement station; The transverse drive mechanism (3) drives the first bearing member (2) to slide, so that the first bearing member (2) is aligned with the position where the battery pack (400) is located on the mining electric truck; The telescopic drive mechanism (5) drives the second bearing member (4) to slide, so that the second bearing member (4) partially extends out of the first bearing member (2) and is located between the brim (300) of the mining electric truck and the battery pack (400); The hoisting drive mechanism (7) drives the hoisting mechanism (6) to slide, so that the hoisting mechanism (6) is located above the battery pack (400) of the mining electric truck; The hoisting mechanism (6) hoists the battery pack (400) of the mining electric truck; The transverse drive mechanism (3), the telescopic drive mechanism (5) and the hoisting drive mechanism (7) cooperate with each other to transport the battery pack (400) of the mining electric truck hoisted by the hoisting mechanism (6) to a battery position in the container (1) for placing a low-power battery pack (400); The lifting mechanism (6) lowers the battery pack (400) of the mining electric truck; The transverse drive mechanism (3), the telescopic drive mechanism (5) and the hoisting drive mechanism (7) cooperate with each other to drive the hoisting mechanism (6) to a battery position in the container (1) for placing a fully-charged battery pack (400); The hoisting mechanism (6) hoists the fully-charged battery pack (400); The transverse drive mechanism (3), the telescopic drive mechanism (5) and the hoisting drive mechanism (7) cooperate with each other to drive the hoisting mechanism (6) to a position above the battery pack (400) on the mining electric truck; The hoisting mechanism (6) places the fully-charged battery pack (400) on the mining battery truck; The hoisting drive mechanism (7) drives the hoisting mechanism (6) to reset; The telescopic driving mechanism (5) drives the second bearing member (4) to reset; The transverse driving mechanism (3) drives the first bearing member (2) to reset.

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