An underground mine equipment battery replacement system and a control method thereof, and an electric device

Abstract

This invention discloses a battery swapping system and its control method for underground mining equipment, aiming to solve the problems of excessive downtime and low operational efficiency when replacing batteries in underground mining equipment. It includes a battery swapping trolley for carrying and transporting battery packs; a slide rail installed on the trolley, which can extend and retract horizontally relative to the trolley to transfer the battery pack between the trolley and the equipment; and a lifting and fixing mechanism respectively disposed on the trolley and the equipment, which is used to vertically lift, lock, or release the battery pack, cooperating with the extension and retraction of the slide rail to complete the transfer and fixing of the battery pack. This invention is applicable when construction equipment needs battery pack replacement, with the battery swapping trolley transporting the battery pack to the construction site, and rapid battery swapping performed using the trolley and the equipment's own devices.

Description

Technical Field

[0001] This invention relates to the field of underground mining construction equipment, and in particular to a power swapping system for underground mining equipment, its control method, and the electrical equipment thereof. Background Technology

[0002] New energy sources possess significant advantages such as being clean and pollution-free, and having low operating costs. As new energy technologies mature, they are increasingly being applied in underground mining construction. Using new energy equipment during underground mining operations can avoid the exhaust emissions and high noise pollution of conventional internal combustion engines, improving work comfort, and reducing operating costs significantly compared to internal combustion locomotives. Currently, many underground mines in China are vigorously developing new energy equipment.

[0003] Due to the limitations of new energy sources, most battery-powered equipment can only operate for 3-6 hours, requiring charging or battery swapping during construction. Building charging stations within underground mines is very costly, necessitating equipment travel between the charging station and the work site, severely limiting equipment utilization and reducing construction efficiency. To save costs, some mines build charging stations on the surface, using specialized equipment to transport battery packs between the charging station and the battery swapping station. At the swapping station, construction equipment is then lifted by crane for battery swapping, still requiring equipment to travel between the swapping station and the work site. If the swapping station is far from the work site, this significantly reduces construction efficiency.

[0004] Due to limitations in battery charging or swapping, the efficiency of many new energy equipment in underground mines is currently low, severely restricting the use and promotion of new energy equipment. Summary of the Invention

[0005] The purpose of this invention is to provide a battery swapping system and control method for underground mining equipment, as well as the electrical equipment itself, to solve the technical problems of excessive downtime and low operating efficiency when replacing batteries in underground electrical equipment in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution: In a first aspect, the present invention provides a battery swapping system for underground mining equipment, used for transferring battery packs between a battery swapping vehicle and the power-consuming equipment, comprising: Battery swapping vehicle, used to carry and transport battery packs; A slide rail is installed on the battery swapping vehicle. The slide rail is horizontally extendable relative to the battery swapping vehicle to transfer the battery pack between the battery swapping vehicle and the electrical equipment. The lifting and fixing mechanisms are respectively installed on the battery swapping vehicle and the electrical equipment. The lifting and fixing mechanisms are used to lift and lower the battery pack vertically and to lock or release it, so as to cooperate with the extension and retraction of the slide rail to complete the transfer and fixing of the battery pack.

[0007] Through the coordinated design of the battery swapping vehicle, sliding rails, and lifting and fixing mechanisms, the battery swapping system for underground mining equipment not only improves the battery swapping efficiency but also reduces the complexity of manual operation, ensuring the uninterrupted operation of underground mining equipment and greatly enhancing the overall production efficiency and safety of the mine.

[0008] Furthermore, the lifting and fixing mechanism includes: a hydraulic cylinder, the cylinder body of which is mounted on the battery swapping vehicle or the electrical equipment; a clamping plate, the first end of which is connected to the piston rod end of the hydraulic cylinder; and a support, which is mounted on the battery swapping vehicle or the electrical equipment, and the second end of the clamping plate is movably connected to the support.

[0009] This design allows the pallet to be freely adjusted in angle or position within a certain range, thus better adapting to the needs of different operating environments. During operation, the hydraulic cylinder drives the piston rod, which in turn moves the pallet, thereby achieving the lifting and fixing functions of the swapping vehicle or electrical equipment. This mechanism design not only improves the flexibility of the equipment but also ensures operational stability and safety.

[0010] Furthermore, the card plate is provided with a guide groove, the support is provided with a guide member, the guide member passes through the guide groove, and the guide member slides in cooperation with the guide groove.

[0011] This design ensures smoother and more precise movement of the support on the clamping plate, contributing to improved stability and efficiency of the entire device. The combined use of guide grooves and guide components not only limits the support's movement trajectory and reduces operational deviations, but also maintains long-term reliability and durability even with frequent use. Furthermore, this structural design helps reduce the precision requirements during installation and maintenance, making these processes simpler and faster.

[0012] Furthermore, the guide groove is a keyway, the guide element is a bolt, and the clamping plate is connected to the support via the bolt.

[0013] With its secure connection to the support via bolts, the clamping plate can be stably positioned in the predetermined location. Meanwhile, the keyway structure ensures that the bolts will not loosen or come loose during movement. This design is widely used in many mechanical devices, providing a reliable guarantee for the safe operation of the equipment.

[0014] Furthermore, the slide rail has multiple sliding tracks that can slide relative to each other, and adjacent tracks are connected by pulleys.

[0015] The pulley connection allows the slide rail to remain stable during movement, reducing friction and wear, thereby improving the overall performance and service life of the equipment.

[0016] Furthermore, the slide rail includes a first slide rail, a second slide rail, and a third slide rail. The first slide rail is installed on the battery swapping vehicle, the second slide rail is installed on the first slide rail and can slide relative to the first slide rail, and the third slide rail is installed on the second slide rail and can slide relative to the second slide rail.

[0017] This multi-track design allows the battery swapping vehicle to move flexibly and position precisely in the horizontal direction, thus meeting the needs of complex operations. This design not only improves the operational efficiency of the battery swapping vehicle but also significantly reduces maintenance costs and extends the service life of the equipment.

[0018] Furthermore, the battery swapping vehicle is equipped with at least two of the aforementioned lifting and fixing mechanisms, which are used to fix the depleted battery pack and the fully charged battery pack, respectively.

[0019] This design ensures that battery packs in different states can be effectively fixed during the battery swapping process, while also improving battery swapping efficiency.

[0020] Secondly, the present invention also provides an electrical device, including at least one underground mining equipment battery swapping system as described in any of the above claims, wherein the lifting and fixing mechanism is provided in the battery pack mounting cavity of the electrical device.

[0021] Thirdly, the present invention also provides a control method for an underground mining equipment power swapping system, applied to the underground mining equipment power swapping system as described in any of the above claims, comprising the following steps: Drive the battery swapping vehicle to a position where it is placed alongside the electrical equipment; Activate the lifting and fixing mechanism on the electrical equipment to loosen the fixing of the depleted battery pack and lift the depleted battery pack to a preset height; Drive the slide rail on the battery swapping vehicle to extend horizontally, so that it extends under the depleted battery pack; Activate the lifting and fixing mechanism on the electrical equipment to lower the depleted battery pack onto the slide rail; The slide rail is driven to retract horizontally, transferring the depleted battery pack from above the electrical equipment to the battery swapping vehicle; Activate the lifting and fixing mechanism on the battery swapping vehicle to lock the depleted battery pack in place; Following the sequence corresponding to the steps described above, the fully charged battery pack carried on the battery swapping vehicle is installed onto the electrical equipment.

[0022] Furthermore, the step of the battery swapping vehicle moving to a position parallel to the electrical equipment includes: The battery swapping vehicle responds to the battery pack power demand signal emitted by the electrical equipment and automatically drives to the preset battery swapping station; The driver adjusts the position of the battery swapping vehicle to align it parallel to the electrical equipment. The battery swapping vehicle automatically identifies the location where the battery pack needs to be installed on the electrical equipment and automatically adjusts itself to align with the location.

[0023] Compared with the prior art, the beneficial effects achieved by the underground mining equipment power swapping system and its control method, as well as the power-using equipment of the present invention, are as follows: 1. This invention achieves seamless connection between disassembling a depleted battery pack and installing a fully charged battery pack by setting up lifting and fixing mechanisms located on the battery swapping vehicle and the power-consuming equipment, respectively, in conjunction with retractable sliding rails. The entire battery swapping process eliminates the need for manual handling of the battery pack, avoiding the safety risks associated with transporting heavy objects and significantly improving the operational safety of battery swapping in underground mining equipment; 2. This invention achieves smooth lifting and reliable fixing of the battery pack through the cooperative structure of the hydraulic cylinder, clamping plate, and support in the lifting and fixing mechanism. The hydraulic cylinder, as the driving component, provides power for the lifting and lowering of the clamping plate; the hinged connection between the clamping plate and the support allows the clamping plate to swing around the fulcrum, realizing the conversion between lifting and clamping actions. The structure is simple and reliable. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0025] Figure 1 This is a schematic diagram of the structure of a power swapping system for underground mining equipment in some embodiments provided by the present invention; Figure 2 This is a schematic diagram of the lifting and fixing mechanism of a power swapping system for underground mining equipment in some embodiments provided by the present invention; Figure 3 This is a schematic diagram of the battery pack replacement structure of an underground mining equipment battery swapping system provided in some embodiments of the present invention; Figure 4 This is a schematic diagram of the interlocking component of a power swapping system for underground mining equipment in some embodiments provided by the present invention; Figure 5 This is a schematic diagram of the structure of a lifting battery pack in an underground mining equipment power swapping system according to some embodiments of the present invention; Figure 6 This is a schematic diagram of the slide rail structure of a power swapping system for underground mining equipment in some embodiments provided by the present invention.

[0026] Explanation of reference numerals in the attached figures: 1. Battery swapping vehicle; 2. Slide rail; 3. Lifting and fixing mechanism; 4. Battery pack with low power; 5. Battery pack with full power; 6. Electrical equipment; 301. Hydraulic cylinder; 302. Support; 303. Bolt; 304. Clamping plate; 201. First slide rail; 202. Second slide rail; 203. Third slide rail. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Example

[0028] like Figure 1-6 As shown, this embodiment provides a battery swapping system for underground mining equipment, used to transfer battery packs between a battery swapping vehicle 1 and the power-consuming equipment 6, including: Battery swapping vehicle 1 is used to carry and transport battery packs; A slide rail 2 is installed on the battery swapping vehicle 1. The slide rail 2 can extend and retract horizontally relative to the battery swapping vehicle 1 to transfer the battery pack between the battery swapping vehicle 1 and the electrical equipment 6. Lifting and fixing mechanisms 3 are respectively installed on the battery swapping vehicle 1 and the electrical equipment 6. The lifting and fixing mechanisms 3 are used to vertically lift and lower the battery pack, as well as to lock or release it, to cooperate with the extension and retraction of the slide rail 2 to complete the transfer and fixing of the battery pack. Figure 2 As shown, the electrical equipment 6 is also equipped with a lifting and fixing mechanism 3. The electrical equipment 6 adjusts the height of the battery pack through the lifting and fixing mechanism 3 so that the slide rail 2 can pass under the battery pack.

[0029] In summary, this embodiment of an underground mining equipment battery swapping system includes a battery swapping cart 1, a slide rail 2, and a lifting and fixing mechanism 3. The battery swapping cart 1 is used to carry and transport battery packs in underground tunnels. The slide rail 2 is installed on the battery swapping cart 1, and the lifting and fixing mechanism 3 is installed on the battery swapping cart 1. The height of the battery pack to be replaced is adjusted by the lifting and fixing mechanism 3, and the sliding rail 2 is moved left and right to replace the depleted battery pack 4 and the fully charged battery pack 5. The power-consuming equipment 6 is also equipped with a lifting and fixing mechanism 3. The power-consuming equipment 6 adjusts the height of the battery pack through the lifting and fixing mechanism 3 so that the slide rail 2 can pass underneath the battery pack.

[0030] In some embodiments, the lifting and fixing mechanism 3 includes: a hydraulic cylinder 301, the cylinder body of which is mounted on the battery swapping vehicle 1 or the electrical equipment 6; a clamping plate 304, the first end of which is connected to the piston rod end of the hydraulic cylinder 301; and a support 302, which is mounted on the battery swapping vehicle 1 or the electrical equipment 6, and the second end of the clamping plate 304 is movably connected to the support 302. Optionally, the clamping plate 304 is provided with a guide groove, and the support 302 is provided with a guide member, which passes through the guide groove and slides in cooperation with the guide groove. More specifically, the guide groove is a keyway, the guide member is a bolt 303, and the clamping plate 304 is connected to the support 302 by the bolt 303.

[0031] It can be understood that the lifting and fixing mechanism 3 includes a hydraulic cylinder 301, a support 302, bolts 303, and a clamping plate 304. The clamping plate 304 is connected to the hydraulic cylinder 301 and the support 302 by bolts 303. Specifically, the first end of the clamping plate 304 is connected to the piston rod end of the hydraulic cylinder 301 by bolts 303, and the second end of the clamping plate 304 is connected to the support 302 by bolts 303. The support 302 is fixedly installed on the battery swapping vehicle 1 or the electrical equipment 6.

[0032] The clamping plate 304 is provided with a guide groove, which is a keyway in this embodiment. The support 302 is provided with a guide member, which is a bolt 303 in this embodiment. The bolt 303 passes through the keyway of the clamping plate 304 and slides in fit with the keyway. The reciprocating motion of the hydraulic cylinder 301 drives the clamping plate 304 connected by the bolt 303 to move; the clamping plate 304 is constrained by the bolt 303 on the support 302, causing the clamping plate 304 to reciprocate within the keyway. Thus, when the hydraulic cylinder 301 extends, the clamping plate 304 loosens its fixation to the battery pack; when the hydraulic cylinder 301 retracts, the clamping plate 304 clamps and fixes the battery pack.

[0033] In some embodiments, the slide rail 2 has multiple sliding tracks that can slide relative to each other, and adjacent tracks are connected by pulleys. Optionally, the slide rail 2 includes a first track 201, a second track 202, and a third track 203. The first track 201 is mounted on the battery swapping vehicle 1, the second track 202 is mounted on the first track 201 and can slide relative to the first track 201, and the third track 203 is mounted on the second track 202 and can slide relative to the second track 202.

[0034] It is understood that the slide rail 2 includes a first slide rail 201, a second slide rail 202, and a third slide rail 203. The first slide rail 201 is fixedly installed on the swapping vehicle 1, the second slide rail 202 is installed on the first slide rail 201 and can slide relative to the first slide rail 201, and the third slide rail 203 is installed on the second slide rail 202 and can slide relative to the second slide rail 202. Pulleys are provided between the first slide rail 201 and the second slide rail 202, and between the second slide rail 202 and the third slide rail 203, to support relative movement between them. When the slide rail 2 extends, the second slide rail 202 slides relative to the first slide rail 201, and the third slide rail 203 slides relative to the second slide rail 202; when the slide rail 2 retracts, the third slide rail 203 and the second slide rail 202 retract sequentially, overlapping with the first slide rail 201 and stored on the swapping vehicle 1.

[0035] In some embodiments, the battery swapping vehicle 1 is equipped with at least two of the aforementioned lifting and fixing mechanisms 3, which are used to fix the depleted battery pack 4 and the fully charged battery pack 5, respectively. It is understood that the battery swapping vehicle 1, carrying the fully charged battery pack 5, travels to the left or right side of the equipment 6 requiring power, and is placed side-by-side with the equipment 6.

[0036] As an equivalent alternative, the drive unit of the lifting and fixing mechanism 3 is not limited to the hydraulic cylinder 301, but can also be a pneumatic cylinder or an electric push rod. The guide groove on the clamping plate 304 is not limited to a keyway, but can also be an oblong through groove or a T-slot. The bolt 303 can be replaced by a pin, which also achieves the connection and guiding functions. The number of stages of the slide rail 2 is not limited to three, and can be set to two or four stages according to actual needs. The pulley can be replaced by a rolling bearing, which also achieves relative sliding between the slide rails. Example

[0037] This embodiment provides an electrical device 6, including an underground mining equipment battery swapping system as described in any of Embodiment 1. The lifting and fixing mechanism 3 is disposed within the battery pack mounting cavity of the electrical device 6. It can be understood that the electrical device 6 is underground mining engineering machinery equipment, which has the function of swapping batteries in conjunction with the battery swapping system described in Embodiment 1. The electrical device 6 includes a device body and a lifting and fixing mechanism 3 installed on the device body. The lifting and fixing mechanism 3 is installed at the battery pack mounting position of the electrical device 6, facilitating docking with the battery swapping vehicle 1.

[0038] The height of the battery pack in the electrical equipment 6 is adjusted via the lifting and fixing mechanism 3. When it is necessary to remove the depleted battery pack 4, the hydraulic cylinder 301 extends, driving the clamping plate 304 to move. Under the constraint of the keyway, the clamping plate 304 lifts the depleted battery pack 4 to a certain height, causing it to detach from the installation position of the electrical equipment 6. At the same time, the slide rail 2 can pass under the battery pack. When it is necessary to install the fully charged battery pack 5, the hydraulic cylinder 301 retracts, driving the clamping plate 304 to descend and fixing the fully charged battery pack 5 onto the electrical equipment 6.

[0039] The bottom of the battery pack is provided with a support structure that cooperates with the clamping plate 304. When the clamping plate 304 lifts the battery pack, it supports the bottom of the battery pack; when the clamping plate 304 retracts, it clamps the bottom edge of the battery pack, thereby fixing the battery pack.

[0040] As an equivalent alternative, the type of electrical equipment 6 is not limited to tunneling machines, loader ...

[0041] The electrical equipment 6 provided in this embodiment has the ability to automatically swap batteries in cooperation with the battery swapping vehicle 1 by setting a lifting and fixing mechanism 3 on its body that matches the battery swapping vehicle 1, without the need for manual intervention in the disassembly and installation of the battery pack. Example

[0042] This embodiment provides a control method for an underground mining equipment power swapping system, applied to the underground mining equipment power swapping system as described in any one of Embodiment 1, including the following steps: The battery swapping vehicle 1 is driven to a position parallel to the power-consuming equipment 6. Responding to the battery pack power demand signal from the power-consuming equipment 6, the battery swapping vehicle 1 automatically drives to the preset battery swapping station. The driver adjusts the position of the battery swapping vehicle 1 according to the on-site road conditions via a remote control or onboard control system, ensuring it is parallel and aligned with the power-consuming equipment 6, and guaranteeing that the extension direction of the slide rail 2 is consistent with the battery pack transfer direction.

[0043] The lifting and fixing mechanism 3 on the electrical equipment 6 is activated to release the fixation on the depleted battery pack 4 and lift the depleted battery pack 4 to a preset height. Specifically, the hydraulic cylinder 301 is extended, driving the clamping plate 304 to rise. The clamping plate 304 lifts the depleted battery pack 4, causing it to detach from the battery pack mounting position on the electrical equipment 6. During the rising process, the clamping plate 304 is subject to the sliding constraint of the bolt 303 on the support 302 within the guide groove, maintaining stable movement.

[0044] The slide rail 2 on the battery swapping vehicle 1 is driven to extend horizontally, so that it extends below the battery pack 4. The second slide rail 202 and the third slide rail 203 of the slide rail 2 extend in sequence under the action of the driving mechanism, so that the end of the third slide rail 203 extends into the gap between the bottom of the battery pack 4 and the card plate 304.

[0045] Activate the lifting and fixing mechanism 3 on the electrical equipment 6 to lower the depleted battery pack 4 onto the slide rail 2; specifically, control the hydraulic cylinder 301 to retract, the clamping plate 304 to descend, and place the depleted battery pack 4 stably onto the third slide rail 203 of the slide rail 2.

[0046] The slide rail 2 is driven to retract horizontally, transferring the depleted battery pack 4 from above the electrical equipment 6 to the battery swapping vehicle 1; the third slide rail 203 and the second slide rail 202 of the slide rail 2 retract in sequence, pulling the depleted battery pack 4 out from the battery pack mounting position of the electrical equipment 6 and moving it above the lifting and fixing mechanism 3 of the battery swapping vehicle 1.

[0047] Start the lifting and fixing mechanism 3 on the battery swapping vehicle 1 to clamp the battery pack 4; control the hydraulic cylinder 301 on the battery swapping vehicle 1 to retract, drive the clamping plate 304 to descend, clamp the bottom of the battery pack 4, and fix the battery pack 4 on the battery swapping vehicle 1.

[0048] Following the sequence corresponding to the steps described above, the fully charged battery pack 5 carried on the battery swapping vehicle 1 is installed onto the electrical equipment 6.

[0049] In some embodiments, the step of the battery swapping vehicle 1 driving to a position placed parallel to the electrical equipment 6 includes: the battery swapping vehicle 1 responding to the battery pack power demand signal emitted by the electrical equipment 6 and automatically driving to a preset battery swapping station; the driver adjusting the position of the battery swapping vehicle 1 so that it is parallel to the electrical equipment 6; the battery swapping vehicle 1 automatically identifying the position on the electrical equipment 6 where the battery pack needs to be installed and automatically adjusting to align with the position.

[0050] The battery swapping vehicle 1 can be driven manually by a driver or remotely controlled by a ground dispatch center. The identification method for the battery swapping vehicle 1 is not limited to visual recognition; laser positioning, ultrasonic positioning, or infrared positioning can also be used. The hydraulic cylinders 301 in each step can be controlled manually using valves or automatically using solenoid valves in conjunction with a controller.

[0051] The control method provided in this embodiment, through the cooperation of the battery swapping vehicle 1 and the lifting and fixing mechanism 3 on the electrical equipment 6, and the telescopic movement of the slide rail 2, achieves seamless connection between the disassembly of the depleted battery pack 4 and the installation of the fully charged battery pack 5. The entire process does not require manual handling of the battery pack, which improves the battery swapping efficiency and safety, and is particularly suitable for the working environment of narrow tunnels in underground mines.

[0052] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "up," "down," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to explain the relative positional relationship and movement between components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. These terms are used only for the convenience of describing the invention and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention.

[0053] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0054] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0055] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A battery swapping system for underground mining equipment, used for transferring battery packs between a battery swapping vehicle (1) and the power-consuming equipment (6), characterized in that, include: Battery swapping vehicle (1) is used to carry and transport battery packs; A slide rail (2) is installed on the battery swapping vehicle (1). The slide rail (2) can extend and retract horizontally relative to the battery swapping vehicle (1) to transfer the battery pack between the battery swapping vehicle (1) and the electrical equipment (6). The lifting and fixing mechanism (3) is respectively installed on the battery swapping vehicle (1) and the electrical equipment (6). The lifting and fixing mechanism (3) is used to lift and lower the battery pack vertically and to clamp or loosen it, so as to cooperate with the extension and retraction of the slide rail (2) to complete the transfer and fixing of the battery pack.

2. The underground mining equipment power swapping system according to claim 1, characterized in that, The lifting and fixing mechanism (3) includes: Hydraulic cylinder (301), the cylinder body end of which is mounted on the battery swapping vehicle (1) or the electrical equipment (6); A clamping plate (304), the first end of which is connected to the piston rod end of the hydraulic cylinder (301); Support (302), the support (302) is installed on the battery swapping vehicle (1) or the electrical equipment (6), and the second end of the card plate (304) is movably connected to the support (302).

3. The underground mining equipment power swapping system according to claim 2, characterized in that, The card plate (304) is provided with a guide groove, and the support (302) is provided with a guide member. The guide member passes through the guide groove and slides with the guide groove.

4. The underground mining equipment power swapping system according to claim 3, characterized in that, The guide groove is a keyway, the guide component is a bolt (303), and the clamping plate (304) is connected to the support (302) through the bolt (303).

5. The underground mining equipment power swapping system according to claim 1, characterized in that, The slide rail (2) has multiple slides that can slide relative to each other, and adjacent slides are connected by pulleys.

6. The underground mining equipment power swapping system according to claim 5, characterized in that, The slide rail (2) includes a first slide rail (201), a second slide rail (202) and a third slide rail (203). The first slide rail (201) is installed on the swapping vehicle (1). The second slide rail (202) is installed on the first slide rail (201) and can slide relative to the first slide rail (201). The third slide rail (203) is installed on the second slide rail (202) and can slide relative to the second slide rail (202).

7. The underground mining equipment power swapping system according to claim 1, characterized in that, The battery swapping vehicle (1) is equipped with at least two lifting and fixing mechanisms (3), which are used to fix the depleted battery pack (4) and the fully charged battery pack (5), respectively.

8. An electrical appliance (6), characterized in that, The underground mining equipment battery swapping system as described in any one of claims 1 to 7 is provided with the lifting and fixing mechanism (3) inside the battery pack mounting cavity of the electrical equipment (6).

9. A control method for an underground mining equipment power swapping system, applied to the underground mining equipment power swapping system as described in any one of claims 1 to 7, characterized in that, Includes the following steps: Drive the battery swapping vehicle (1) to a position where it is placed side by side with the electrical equipment (6); Start the lifting and fixing mechanism (3) on the electrical equipment (6) to loosen the fixing of the battery pack (4) and lift the battery pack (4) to a preset height; Drive the slide rail (2) on the battery swapping vehicle (1) to extend horizontally so that it extends under the battery pack (4) that is out of power; Start the lifting and fixing mechanism (3) on the electrical equipment (6) to lower the depleted battery pack (4) onto the slide rail (2); Drive the slide rail (2) to retract horizontally, and transfer the depleted battery pack (4) from above the electrical equipment (6) to the battery swapping vehicle (1); Start the lifting and fixing mechanism (3) on the battery swapping vehicle (1) to lock the depleted battery pack (4). Following the sequence corresponding to the steps above, the fully charged battery pack (5) carried on the battery swapping vehicle (1) is installed onto the electrical equipment (6).

10. The control method for the underground mining equipment power swapping system according to claim 9, characterized in that, The steps for the battery swapping vehicle (1) to travel to a position where it is placed alongside the electrical equipment (6) include: The battery swapping vehicle (1) responds to the battery pack power demand signal issued by the electrical equipment (6) and automatically drives to the preset battery swapping station; The driver adjusts the position of the battery swapping vehicle (1) so that it is parallel to the electrical equipment (6); The battery swapping vehicle (1) automatically identifies the location where the battery pack needs to be installed on the electrical equipment (6) and automatically adjusts it to align with the location.

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