A method and device for battery swapping in mining dump trucks

Abstract

This invention relates to the field of battery swapping technology for dump trucks, and in particular to a battery swapping method and device for mining dump trucks. The method includes: activating the battery swapping device (G) by issuing a battery swapping command; lifting the upper baffle of the cargo box using the battery swapping device (G); if the upper baffle fails to lift, a primary alarm is issued and the entire cargo box is lifted; once the cover above the battery is successfully opened, the battery swapping station begins swapping, and a lowering command is issued upon completion; the upper baffle of the cargo box is lowered by issuing the lowering command to re-cover the battery; if the upper baffle fails to lower, a secondary alarm is issued and manual lowering is performed to re-cover the battery; the battery swapping ends after the upper baffle is reset. This invention, through an improved battery swapping method and device for mining dump trucks, eliminates the need to lift the entire cargo box during battery swapping, requiring only the upper baffle to be lifted, significantly reducing swapping time, increasing swapping speed, and improving the efficiency of continuous vehicle operation.

Description

Technical Field

[0001] This invention relates to the field of battery swapping technology for dump trucks, and more particularly to a battery swapping method and device for mining dump trucks. Background Technology

[0002] In battery-swapping electric mining trucks, the battery is located below the upper baffle of the cargo box. The battery cannot be removed directly during battery swapping. The entire cargo box needs to be flipped upwards to open the space above the battery before it can be removed. Since flipping the cargo box takes tens of seconds, the truck can only wait for the cargo box to flip, resulting in low battery swapping efficiency. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the aforementioned problems of low battery swapping efficiency due to the need to flip the entire cargo box during battery swapping, this invention is proposed.

[0005] Therefore, the objective of this invention is to provide a battery swapping method for mining dump trucks, including...

[0006] The battery swapping device G is activated by issuing a battery swapping command;

[0007] The upper baffle of the cargo box is lifted by the battery swapping device G, and the cover above the battery is opened.

[0008] If the upper baffle of the cargo box fails to lift, a primary alarm will be issued and the entire cargo box will be lifted, and the cover above the battery will be opened.

[0009] Once the shield above the battery is successfully opened, the battery swapping station begins swapping the battery and issues a fallback command after the swapping is completed.

[0010] By issuing a drop command, the upper baffle of the cargo box is lowered to cover the battery again;

[0011] If the top panel of the cargo box fails to fall back down, a medium alarm will be issued and the panel will be manually lowered and the battery will be covered again.

[0012] The battery swapping is complete after the upper baffle of the cargo box is reset.

[0013] As a preferred embodiment of the battery swapping method for mining dump trucks described in this invention, when SOC≤30%, the battery swapping command is issued by the cloud console; when it is manually determined that a battery swapping is needed, the battery swapping command is issued manually.

[0014] As a preferred embodiment of the battery swapping method for mining dump trucks described in this invention, the battery swapping device G is equipped with an alarm, and the lifting stroke of the battery swapping device G is adapted to the lifting angle of the upper baffle of the cargo box.

[0015] A cargo box upper baffle lifting device includes: a load-bearing component including a frame, a cargo box mounted on the frame, an upper baffle mounted on the cargo box, a battery mounting seat mounted on the frame, and a battery body mounted on the battery mounting seat; a lifting component including a connecting assembly mounted on the cargo box and a hydraulic assembly mounted on the connecting assembly; a limiting component including a mounting bracket mounted on the battery body, a fixing cylinder mounted on the mounting bracket, a fixing rod mounted on the upper baffle, and a rotating cylinder mounted on the fixing rod; and a clamping component including a support member mounted on the frame, a pulling member mounted on the upper baffle, a reversing assembly mounted on the frame, a gripper mounted on the frame, and a reset member mounted on the battery mounting seat.

[0016] As a preferred embodiment of the battery swapping device for mining dump trucks described in this invention, the vehicle frame is provided with several through slots, the cargo box is movably connected to the vehicle frame, and the cargo box is movably connected to the upper baffle.

[0017] In a preferred embodiment of the battery swapping device for mining dump trucks described in this invention, the battery mounting base is electrically connected to the battery body, the battery mounting base is located below the upper baffle, and the battery body is adapted to the height of the cargo box.

[0018] In a preferred embodiment of the battery swapping device for mining dump trucks described in this invention, the connecting assembly includes a fixed seat and a rotating seat. The fixed seat is respectively disposed on the lower surface of the upper baffle and one side of the cargo box, and the rotating seat is rotatably connected to the fixed seat.

[0019] As a preferred embodiment of the battery swapping device for mining dump trucks described in this invention, the hydraulic components include a hydraulic lifting cylinder and a hydraulic circuit control valve. The two ends of the hydraulic lifting cylinder are fixedly connected to the rotating seat, and the stroke of the hydraulic lifting cylinder is adapted to the lifting angle of the upper baffle.

[0020] In a preferred embodiment of the battery swapping device for mining dump trucks described in this invention, the hydraulic circuit control valve is connected to the hydraulic lifting cylinder, and the hydraulic circuit control valve is also equipped with a hydraulic alarm.

[0021] In a preferred embodiment of the battery swapping device for mining dump trucks described in this invention, the hydraulic lifting cylinder and the hydraulic circuit control valve are located in the space between the battery body and the cargo box, and the hydraulic lifting cylinder and the hydraulic circuit control valve are adapted to the aforementioned space.

[0022] The beneficial effects of this invention are as follows: This invention, through an improved battery swapping method and device for mining dump trucks, allows for battery swapping of mining dump trucks without lifting the entire cargo box, only lifting the upper baffle of the cargo box. In actual use, compared to the 40 seconds required for the entire cargo box to be rotated, the time required to lift only the upper baffle of the cargo box is only 5 seconds, which greatly saves the time required for battery swapping, increases the battery swapping speed, improves the efficiency of continuous vehicle operation, and also avoids the inability to lift the vehicle if the device malfunctions. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0024] Figure 1 This is a flowchart of a battery swapping method for mining dump trucks.

[0025] Figure 2 This is a schematic diagram of the lifting angle for a battery swapping method for mining dump trucks.

[0026] Figure 3 This is a schematic diagram of a battery swapping device for a mining dump truck.

[0027] Figure 4 This is a side view of a battery swapping device for a mining dump truck.

[0028] Figure 5 This is a front view of a battery swapping device for a mining dump truck after the battery body has been removed.

[0029] Figure 6 This is a schematic diagram of a battery swapping device for a mining dump truck after the battery body has been removed.

[0030] Figure 7 This is a side view of a battery swapping device for a mining dump truck after the battery body has been removed.

[0031] Figure 8 This is a schematic diagram of a battery swapping device for a mining dump truck after the battery body has been removed.

[0032] Figure 9 This is a schematic diagram of the limiting component of a battery swapping device for mining dump trucks.

[0033] Figure 10 This is a cross-sectional schematic diagram of a limiting component of a battery swapping device for mining dump trucks. Detailed Implementation

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0037] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0038] Example 1

[0039] Reference Figure 1-2 A battery swapping method for mining dump trucks is provided, including:

[0040] S1: Start the battery swapping device G by issuing a battery swapping command;

[0041] S2: Lift the upper baffle of the cargo box using the battery swapping device G to open the cover above the battery;

[0042] If the upper baffle of the cargo box fails to lift, a primary alarm will be issued and the entire cargo box will be lifted, and the cover above the battery will be opened.

[0043] S3: Once the cover above the battery is successfully opened, the battery swapping station will begin swapping the battery and issue a fallback command after the swapping is completed.

[0044] S4: By issuing a drop command, the upper baffle of the cargo box is lowered to cover the battery again;

[0045] If the top panel of the cargo box fails to fall back down, a medium alarm will be issued and the panel will be manually lowered and the battery will be covered again.

[0046] S5: Battery swapping ends after the upper baffle of the cargo box is reset.

[0047] Specifically, when the SOC (remaining battery charge) is ≤30%, the battery swap command is issued by the cloud console. When it is determined by the operator that a battery swap is needed, the battery swap command is issued manually.

[0048] Furthermore, the battery swapping device G is equipped with an alarm, and the lifting stroke of the battery swapping device G is adapted to the lifting angle of the upper baffle of the cargo box.

[0049] Among them, the battery swapping command can be issued automatically when the battery power is low, or it can be issued manually by the on-site operator. After the cargo box is lifted, the upper baffle rotates by nearly 90°. The overall lifting of the cargo box can be achieved using the existing cargo box flipping solution. When the cargo box is lifted as a whole, the upper baffle of the cargo box rises synchronously with the cargo box. The vehicle itself has a battery control system that can monitor the battery power and deliver power, and automatically issue a battery swapping command when the power is low.

[0050] The formula for the lifting requirement of the cargo box top baffle is:

[0051] L×cosa<b

[0052] in

[0053] L: Length of cargo box baffle;

[0054] a: Cargo box baffle lifting and tilting angle;

[0055] b: Gap between the battery and the cargo box.

[0056] Operation Procedure: Upon receiving the battery swap command, the battery swapping device G extends to lift the upper baffle of the cargo box. While maintaining pressure in the hydraulic circuit, the upper baffle remains vertical. If the hydraulic cylinder lifts successfully, a successful lift signal is sent, prompting personnel to proceed with the battery swap. If the hydraulic cylinder fails to lift, a lift failure alarm signal (primary alarm) is sent, alerting on-site personnel to the lifting failure and initiating a traditional overall lifting of the cargo box. After the battery swap is completed, the battery swapping device G controls the upper baffle of the cargo box to lower.

[0057] Example 2

[0058] Reference Figure 3-5This embodiment differs from the first embodiment in that it provides a battery swapping device for mining dump trucks, including a load-bearing component 100, a frame 101, a cargo box 102 mounted on the frame 101, the cargo box 102 being movably connected to the frame 101, the cargo box 102 being a commonly used dump truck lifting cargo box 102, an upper baffle 103 mounted on the cargo box 102, the upper baffle 103 being rotatably connected to the top of the cargo box 102, a battery mounting base 104 mounted on the frame 101, and a battery body 105 mounted on the battery mounting base 104. The battery mounting bracket 104 is electrically connected to the battery and to the vehicle's power system; the lifting component 200 includes a connecting assembly 201 mounted on the cargo box 102 and a hydraulic assembly 202 mounted on the connecting assembly 201. The connecting assembly 201 is used to connect and install the hydraulic assembly 202, and the hydraulic assembly 202 provides the power required to lift the upper baffle 103; the limiting component 300 includes a mounting bracket 301 mounted on the battery body 105, which corresponds to the upper baffle 103, and is mounted on the upper baffle 103. The fixed cylinder 302 is a cylindrical structure. A fixed rod 303 is mounted on the upper baffle 103, and a rotating cylinder 304 is mounted on the fixed rod 303. The rotating cylinder 304 is sleeved around the fixed rod 303 and can rotate and slide around the fixed rod 303. A clamping component 400 is a support member 401 mounted on the frame 101. The support member 401 is fixed to the frame 101 and is used to form part of the steering assembly 403. A pulling member is mounted on the upper baffle 103. When the upper baffle 103 or the cargo box 10... 2. When lifting, the pulling member pulls the clamp 404 to unlock it. The reversing component 403, which is set on the frame 101, can change the direction of the force applied by the pulling member, so that it can pull the clamp 404 open. The clamp 404, which is set on the frame 101, and the reset component 405, which is set on the battery mounting seat 104, can clamp the battery body 105 after the battery body 105 is installed in place, thereby increasing the fixing effect of the battery body 105. The reset component 405 can provide the force required for reset after the clamp 404 is pulled open.

[0059] Specifically, the frame 101 has several through slots 101a. The through slots 101a can reduce the weight of the frame 101 and can also install other structures in the through slots 101a. The cargo box 102 is movably connected to the frame 101 and to the upper baffle 103. The cargo box 102 can be lifted. When the cargo box 102 is lifted, it can drive the upper baffle 103 to be lifted synchronously. Alternatively, the upper baffle 103 can be lifted independently without lifting the cargo box 102.

[0060] Furthermore, the battery mounting bracket 104 is electrically connected to the battery body 105. The battery mounting bracket 104 is located below the upper baffle 103. The battery body 105 is adapted to the height of the cargo box 102. After the battery body 105 is installed in the battery mounting bracket 104, it provides the power required by the vehicle. After the battery body 105 is installed, the upper baffle 103 falls back down, which can cover the top of the battery body 105.

[0061] Furthermore, the connecting assembly 201 includes a fixed seat 201a and a rotating seat 201b. The fixed seat 201a is respectively disposed on the lower surface of the upper baffle 103 and one side of the cargo box 102. The rotating seat 201b is rotatably connected to the fixed seat 201a. The two fixed seats 201a form a group, one disposed on the surface of the cargo box 102 and the other disposed on the lower surface of the upper baffle 103. The rotating seat 201b is adapted to the shape of the fixed seat 201a, and the rotating seat 201b is not affected by the fixed seat 201a when rotating.

[0062] Furthermore, the hydraulic assembly 202 includes a hydraulic lifting cylinder 202a and a hydraulic circuit control valve 202b. The two ends of the hydraulic lifting cylinder 202a are fixedly connected to the rotating seat 201b. The stroke of the hydraulic lifting cylinder 202a is adapted to the lifting angle of the upper baffle 103. The hydraulic circuit control valve 202b can control the lifting or lowering of the hydraulic lifting cylinder 202a. When the hydraulic lifting cylinder 202a is fully extended, the upper baffle 103 rotates to nearly 90°. When the hydraulic lifting cylinder 202a is fully retracted, there is no pressure inside the hydraulic lifting cylinder 202a, and the upper baffle 103 is perpendicular to the side of the cargo box 102.

[0063] Furthermore, the hydraulic circuit control valve 202b is connected to the hydraulic lifting cylinder 202a. The hydraulic circuit control valve 202b is also equipped with a hydraulic alarm. When controlling the hydraulic lifting cylinder 202a to lift or lower, the hydraulic circuit control valve 202b can detect whether the lifting is normal. If abnormal pressure leads to lifting failure, an alarm can be issued.

[0064] Furthermore, the hydraulic lifting cylinder 202a and the hydraulic circuit control valve 202b are located in the space between the battery body 105 and the cargo box 102. The hydraulic lifting cylinder 202a and the hydraulic circuit control valve 202b are adapted to the space. The hydraulic lifting cylinder 202a and the hydraulic circuit control valve 202b will not affect the disassembly and installation of the battery body 105, and no collision will occur when the battery body 105 is swapped.

[0065] The rest of the structure is the same as in Example 1.

[0066] Operation process: When the battery swap command is issued, the hydraulic circuit control valve 202b controls the hydraulic lifting cylinder 202a to lift the upper baffle 103. The upper baffle 103 begins to open upwards until the hydraulic lifting cylinder 202a is fully extended. At this time, the upper baffle 103 clears the space above the battery body 105, and the battery body 105 can then be removed for battery swapping. After the battery swap is completed, the hydraulic circuit control valve 202b releases the pressure in the hydraulic lifting cylinder 202a. Under the gravity of the upper baffle 103, the hydraulic lifting cylinder 202a retracts, and the upper baffle 103 covers the battery body 105 again.

[0067] If the hydraulic lifting cylinder 202a or the hydraulic circuit control valve 202b malfunctions, causing the upper baffle 103 to be unable to open, the entire cargo box 102 can still be lifted directly, just like in the prior art. During the lifting process, the upper baffle 103 will rise along with the cargo box 102, which can also open the space above the battery body 105.

[0068] Example 3

[0069] Reference Figure 6-10This embodiment differs from the previous embodiments in that: the mounting bracket 301 has a through hole 301a in the center, and the inner wall of the fixing cylinder 302 has several insertion slots 302a. The through hole 301a is adapted to the size of the fixing cylinder 302. The mounting bracket 301 also has insertion slots 302a. The bottom of the fixing cylinder 302 also has a limiting groove 302b, which is an annular groove. The circumferential side of the fixing rod 303 has a sliding groove 303a, which is a number of interconnected "human"-shaped grooves arranged in a circular array on the outer surface of the fixing rod 303. The bottoms of the two bodies are connected, with the connection point being the bottom end of the slide groove 303a. The top of the "human"-shaped part is the top end of the slide groove 303a. Several limiting blocks 304a are provided on the outer bottom of the rotating cylinder 304. The limiting blocks 304a are adapted to the size and shape of the insertion groove 302a, and also to the size and shape of the limiting groove 302b. Several sliding blocks 304b are provided on the inner wall of the rotating cylinder 304. The sliding blocks 304b are adapted to and slide in conjunction with the slide groove 303a. When the upper baffle 103 falls back, the rotating cylinder 304 slides downwards under gravity. Block 304b and slide groove 303a cooperate with each other, causing each sliding block 304b to slide down along slide groove 303a to the bottom of slide groove 303a. At this time, limit block 304a is aligned with insertion groove 302a, and upper baffle 103 continues to fall back. Limit block 304a can slide along insertion groove 302a, thereby inserting rotating cylinder 304 into fixed cylinder 302 until the bottom of rotating cylinder 304 contacts fixed cylinder 302. At this time, since rotating cylinder 304 can no longer fall, each sliding block 304b will move along slide groove 303a to the top of slide groove 303a. The shape of the groove 303a causes the rotating cylinder 304 to rotate until the sliding block 304b reaches the top of the groove 303a. At this time, the limiting block 304a rotates into the limiting groove 302b, which connects and fixes the rotating cylinder 304 to the fixed cylinder 302, preventing the upper baffle 103 from swaying left and right. When the upper baffle 103 is lifted, the sliding block 304b and the rotating cylinder 304 move in opposite directions until the sliding block 304b is at the bottom of the groove 303a. At this time, the limiting block 304a is aligned and inserted into the groove 302a again, and then follows the upper baffle 103 away from the fixed cylinder 302.

[0070] Specifically, the pulling assembly 402 includes a connecting seat 402a disposed on the upper baffle 103 and the gripper 404. The connecting seat 402a is connected to a pulling belt 402b, and the two ends of the pulling belt 402b are respectively connected to different connecting seats 402a. The reversing assembly 403 includes a fixed pulley 403a disposed on the support member 401, a first reversing pulley 403b and a second reversing pulley 403c disposed in the through groove 101a. The pulling belt 402b first passes vertically through the fixed pulley 403a, then passes through the first reversing pulley 403b to become horizontal, and then passes through the second reversing pulley 403c to become vertical. At this time, the upper baffle 103 is lifted, which will pull the gripper 404 downward. The end is rotatably connected to the through slot 101a. The side of the battery body 105 has a corresponding fixing slot for clamping the jaw 404. The jaw 404 is approximately "7" shaped. The pull strap 402b is connected at the turning point. Pulling the jaw 404 downwards can move it outwards and disengage it from the battery body 105. The jaw 404 can rotate to lock or release. The two ends of the reset member 405 are connected to the battery mounting base 104 and the jaw 404 respectively. The reset member 405 can be a spring or other component that can reset the jaw 404. When the upper baffle 103 falls back, the pull strap 402b begins to release. At this time, the reset member 405 will drive the jaw 404 to reset and clamp the battery body 105.

[0071] The rest of the structure is the same as in Example 2.

[0072] Operation process: When the upper baffle 103 is raised, the rotating cylinder 304 rotates and moves away from the fixed cylinder 302. At the same time, the upper baffle 103 pulls the pull strap 402b, pulling the gripper 404 outward to detach it from the battery body 105 until the upper baffle 103 is fully raised. At this time, the limiting component 300 and the clamping component 400 are disengaged from the battery body 105, and battery replacement can be performed. When the upper baffle 103 falls back, the rotating cylinder 304 rotates again and inserts into the fixed cylinder 302. The pull strap 402b is released, and the gripper 404 moves back towards the battery body 105 under the action of the reset component until the upper baffle 103 falls back completely. The limiting component 300 and the clamping component 400 are reconnected to the battery body 105, thereby reinforcing the battery body 105 and preventing it from shaking. Even if the upper baffle 103 cannot be raised and the entire cargo box 102 is raised instead, the limiting component 300 and the clamping component 400 can still operate normally.

[0073] With the above settings, the limiting component 300 and the clamping component 400 can be automatically unlocked when the upper baffle 103 or the cargo box 102 is raised, and when the upper baffle 103 or the cargo box 102 falls back, the limiting component 300 and the clamping component 400 are automatically connected and fixed to the battery body 105, thereby reinforcing the battery body 105 and preventing the upper baffle 103 from shaking.

[0074] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0075] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0076] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0077] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A battery swapping device for mining dump trucks, characterized in that, include: The load-bearing component (100) includes a frame (101), a cargo box (102) disposed on the frame (101), an upper baffle (103) disposed on the cargo box (102), a battery mounting bracket (104) disposed on the frame (101), and a battery body (105) disposed on the battery mounting bracket (104). The lifting component (200) includes a connecting assembly (201) disposed on the cargo box (102) and a hydraulic assembly (202) disposed on the connecting assembly (201). The limiting component (300), the mounting bracket (301) provided on the battery body (105), the fixing cylinder (302) provided on the mounting bracket (301), the fixing rod (303) provided on the upper baffle (103), and the rotating cylinder (304) provided on the fixing rod (303). The mounting bracket (301) has a through hole (301a) in the center, and the inner wall of the fixing cylinder (302) has several insertion slots (302a). The through hole (301a) is adapted to the size of the fixing cylinder (302). The mounting bracket (301) also has insertion slots (302a). The bottom of the fixing cylinder (302) is also provided with a limiting groove (302b). The limiting groove (302b) is a circular groove. The circumferential side of the fixing rod (303) has a sliding groove (303a). The sliding groove (303a) is a circular array of several interconnected grooves arranged on the outer surface of the fixing rod (303). The bottom of each groove is connected to the bottom of the groove (303a), and the top of the "human" shape is the top of the groove (303a). The bottom of the rotating cylinder (304) is provided with several limiting blocks (304a). The limiting blocks (304a) are adapted to the size and shape of the insertion groove (302a). The limiting blocks (304a) are also adapted to the size and shape of the limiting groove (302b). The inner wall of the rotating cylinder (304) is provided with several sliding blocks (304b). The sliding blocks (304b) are adapted to the groove (303a) and slide in cooperation. The clamping component (400), the support component (401) provided on the frame (101), the pulling component (402) provided on the upper baffle (103), the steering component (403) provided on the frame (101), the gripper (404) provided on the frame (101), and the reset component (405) provided on the battery mounting base (104).

2. The battery swapping device for mining dump trucks as described in claim 1, characterized in that: The frame (101) has several through slots (101a), the cargo box (102) is movably connected to the frame (101), and the cargo box (102) is movably connected to the upper baffle (103).

3. The battery swapping device for mining dump trucks as described in claim 2, characterized in that: The battery mounting base (104) is electrically connected to the battery body (105). The battery mounting base (104) is located below the upper baffle (103). The battery body (105) is adapted to the height of the cargo box (102).

4. The battery swapping device for mining dump trucks as described in claim 3, characterized in that: The connecting assembly (201) includes a fixed seat (201a) and a rotating seat (201b). The fixed seat (201a) is respectively disposed on the lower surface of the upper baffle (103) and one side of the cargo box (102). The rotating seat (201b) is rotatably connected to the fixed seat (201a).

5. The battery swapping device for mining dump trucks as described in claim 4, characterized in that: The hydraulic assembly (202) includes a hydraulic lifting cylinder (202a) and a hydraulic circuit control valve (202b). The two ends of the hydraulic lifting cylinder (202a) are fixedly connected to the rotating seat (201b), and the stroke of the hydraulic lifting cylinder (202a) is adapted to the lifting angle of the upper baffle (103).

6. The battery swapping device for mining dump trucks as described in claim 5, characterized in that: The hydraulic circuit control valve (202b) is connected to the hydraulic lifting cylinder (202a), and the hydraulic circuit control valve (202b) is also equipped with a hydraulic alarm.

7. The battery swapping device for mining dump trucks as described in claim 6, characterized in that: The hydraulic lifting cylinder (202a) and the hydraulic circuit control valve (202b) are located in the space between the battery body (105) and the cargo box (102), and the hydraulic lifting cylinder (202a) and the hydraulic circuit control valve (202b) are adapted to the space.

8. A battery swapping method for mining dump trucks, characterized in that, The method of using a battery swapping device for mining dump trucks as described in any one of claims 1 to 7 includes: The battery swapping device is activated by issuing a battery swapping command. The upper baffle of the cargo box is lifted using the battery swapping device, and the cover above the battery is opened. If the upper baffle of the cargo box fails to lift, a primary alarm will be issued and the entire cargo box will be lifted, and the cover above the battery will be opened. Once the shield above the battery is successfully opened, the battery swapping station begins swapping the battery and issues a fallback command after the swapping is completed. By issuing a drop command, the upper baffle of the cargo box is lowered to cover the battery again; If the top panel of the cargo box fails to fall back down, a medium alarm will be issued and the panel will be manually lowered and the battery will be covered again. The battery swapping is complete after the upper baffle of the cargo box is reset.

9. The battery swapping method for mining dump trucks as described in claim 8, characterized in that: When SOC ≤ 30%, the battery swap command is issued by the cloud console. When it is determined by the operator that a battery swap is needed, the battery swap command is issued manually.

10. The battery swapping method for mining dump trucks as described in claim 9, characterized in that: The battery swapping device is equipped with an alarm, and the lifting stroke of the battery swapping device is adapted to the lifting angle of the upper baffle of the cargo box.

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