Battery replacement trolley

Abstract

The battery replacement trolley comprises an upper frame welding assembly and a lower frame welding assembly, the upper frame welding assembly comprises a box body structure, the upper end and the front end of the box body structure are open, the box body structure comprises an upper frame and a bottom covering plate welded to the bottom of the upper frame, and the lower frame welding assembly comprises a lower frame. The bottom of the end, away from the front end opening, of the upper frame is hinged to the lower frame, a split pump oil cylinder used for supporting and adjusting the height of the front end of the box structure and a split pump used for controlling the split pump oil cylinder are installed on the lower frame, a fluency strip is installed on the upper portion of the bottom covering plate, and a slidable limiting hook is arranged at the front end of the upper frame. The lower portion of the lower vehicle frame is provided with moving wheels, and the position, close to the opening in the front end, of the bottom covering plate is provided with a limiting pin positioning plate.

Description

Technical Field

[0001] This utility model relates to the field of battery installation, specifically to a battery replacement cart. Background Technology

[0002] With increasingly stringent environmental protection requirements, the mining industry is gradually shifting towards green energy solutions. Traditional fuel-powered and lead-acid battery-powered mining transport vehicles suffer from high energy consumption, high pollution, and high maintenance costs, while lithium batteries, with their advantages of high energy density, long lifespan, and fast charging, have become an ideal alternative. Mining lithium battery-powered transport vehicles not only reduce environmental pollution but also improve work efficiency and safety, driving the mining transportation system towards intelligent and sustainable development, and becoming one of the key technologies for the transformation of modern mining.

[0003] In existing technologies, mining lithium battery transport vehicles typically perform battery replacement through the space under the vehicle. Chinese patent CN209096692U discloses a method using a first and second docking part that are connected to each other to achieve positioning relative to the battery compartment. In addition, Chinese patent CN221585370U uses a hydraulic cylinder to drive the linkage shaft up and down, which in turn causes the second and first rhomboid plates to deform, driving the upper battery placement plate to move up and down, fitting the battery pack and receiving its downward movement. This allows for rapid movement to the underside of the vehicle for battery replacement, solving the safety problem of existing methods that involve raising the vehicle for battery swapping. However, neither of these technologies is suitable for battery replacement in mining explosion-proof lithium battery wheeled transport vehicles. The relatively low chassis height of mining transport vehicles makes it difficult to perform battery replacement through the space under the vehicle; therefore, mining explosion-proof lithium battery wheeled transport vehicles need to adopt a side-mounted battery replacement solution. Furthermore, both technologies are limited to vertical or horizontal battery replacement operation modes, making it difficult to flexibly adapt to the complex and ever-changing ground operating environment. Currently, there is still a lack of effective solutions for battery replacement in explosion-proof lithium-ion battery wheeled transport vehicles used in mining.

[0004] Therefore, developing a battery swapping cart that is labor-saving, easy to operate, and can effectively reduce friction during battery replacement has broad application prospects in the field of battery swapping. Utility Model Content

[0005] In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide a battery swapping vehicle that can solve the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model provides a battery swapping trolley, including an upper frame welding assembly and a lower frame welding assembly. The upper frame welding assembly includes a box structure with an open upper end and a front end. The box structure includes an upper frame and a bottom cover plate welded to the bottom of the upper frame. The lower frame welding assembly includes a lower frame. The bottom end of the upper frame away from the front end opening is hinged to the lower frame. The lower frame is equipped with a split pump cylinder for supporting and adjusting the height of the front end of the box structure, and a split pump for controlling the split pump cylinder. The lower frame is equipped with a pressure rod for controlling the split pump and an oil unloading foot pedal. A flow strip is installed on the upper part of the bottom cover plate. A slidable limit hook is provided at the front end of the upper frame. A moving wheel is provided at the lower part of the lower frame. A limit pin positioning plate is provided on the bottom cover plate near the front end opening.

[0008] Preferably, the flow strip includes a flow strip base and flow strip rollers. The flow strip base is fixedly installed on the front of the upper frame with screws through a flow strip fixing plate. The flow strip base is welded to the upper frame through multiple flow strip support plates. The flow strip rollers are installed on the flow strip base.

[0009] Preferably, the movable wheels include directional wheels and swivel wheels. The lower part of the lower frame is symmetrically fixed with directional wheel mounting plates and swivel wheel mounting plates. The directional wheels are mounted on the directional wheel mounting plates with screws, and the swivel wheels are mounted on the swivel wheel mounting plates with screws. Brake pads are installed on the swivel wheels.

[0010] Preferably, two limiting hooks are symmetrically installed on the front of the upper frame, and the limiting hooks are fixed to the upper frame by pins. The upper frame is provided with mounting grooves corresponding to the pins.

[0011] Preferably, upper frame lugs are symmetrically fixed to both sides of the lower part of the upper frame, and lower frame lugs are symmetrically fixed to both sides of the upper part of the lower frame. The upper frame lugs and lower frame lugs are hinged together by pins.

[0012] Preferably, the split pump includes a split pump body, and a split pump mounting base is fixedly connected to the lower frame, so that the split pump body is mounted on the split pump mounting base.

[0013] Preferably, an upper cylinder support seat is welded onto the upper frame, and a lower cylinder support seat is welded onto the lower frame. The telescopic end of the split pump cylinder is connected to the upper cylinder support seat, and the base end of the split pump cylinder is connected to the lower cylinder support seat via a pin.

[0014] Preferably, the lower support of the hydraulic cylinder is welded to the lower part of the lower frame.

[0015] Preferably, the upper frame has side panels corresponding to the bottom cover plate welded on both sides; the upper frame has a rear cover plate corresponding to the bottom cover plate welded on the rear side; and the front part of the bottom cover plate is welded and fixed to the limiting pin positioning plate.

[0016] Preferably, the positioning plate of the limiting pin is provided with a limiting pin hole corresponding to the limiting pin used to limit the battery.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) This utility model controls the split pump to unload or supply oil by pressing the lever and unloading foot pedal, thereby shortening or extending the oil cylinder, thereby realizing the adjustment of the angle between the upper frame welding assembly and the ground, so that the upper frame can fit tightly against the lower surface of the battery, easily align with the target point and realize the positioning of the battery replacement trolley, and can quickly and stably move the battery onto the battery replacement trolley under undulating ground conditions.

[0019] (2) Two symmetrical flow strips are installed on the bottom cover of the battery changing trolley. The rolling friction method can easily remove the battery from the mining explosion-proof lithium battery transport vehicle. The flow strip rollers have low friction, which saves effort for the operators and reduces the risk of wear and tear on the battery. It is a device that reduces the burden of personnel handling and improves the safety and efficiency of operation.

[0020] (3) The present invention is equipped with a limit hook, which can make the battery replacement trolley and the mining safety lithium battery drive wheel transport vehicle more secure when replacing the battery, thereby ensuring that the battery replacement trolley is parked more stably and increasing the safety of battery replacement.

[0021] (4) This utility model is equipped with a limit pin positioning plate, which can quickly realize the battery limit operation after the battery replacement is completed, and prevent the battery from sliding out of the box structure of the upper frame welding assembly, making the battery replacement safer. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a battery swapping cart according to this utility model;

[0024] Figure 2 yes Figure 1 A schematic diagram of the battery replacement vehicle from the A-view perspective;

[0025] Figure 3 yes Figure 1 A structural schematic diagram from the B-view perspective of the battery replacement vehicle;

[0026] Figure 4 This is a structural schematic diagram of the upper frame welding assembly of this utility model;

[0027] In the picture:

[0028] 1. Upper frame; 2. Side panel; 3. Pressure bar; 4. Spring; 5. Split pump body; 6. Unloading foot pedal; 7. Split pump mounting base; 8. Casters; 9. Caster mounting plate; 10. Upper frame lugs; 11. Lower frame lugs; 12. Lower frame; 13. Hydraulic cylinder lower support; 14. Split pump cylinder; 15. Pin; 16. Hydraulic cylinder upper support; 17. Screw; 18. Fixed wheel; 19. Fixed wheel mounting plate; 20. Limit hook; 21. Limit pin; 22. Rear panel; 23. Cotter pin; 24. Bottom panel; 25. Flow strip base; 26. Flow strip roller; 27. Flow strip fixing plate; 28. Flow strip support plate; 29. ​​Limit pin positioning plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1 to 4 As shown, this embodiment provides a battery swapping trolley, including an upper frame welding assembly, a lower frame welding assembly, a split pump, a split pump cylinder 14, directional wheels 18, universal wheels 8, a limiting pin 21, and a flow strip; the upper frame welding assembly includes an upper frame 1, side panels 2, flow strip 25, bottom panels 24, rear panels 22, a cylinder upper support seat 16, an upper frame ear seat 10, and a limiting pin positioning plate 29; the lower frame welding assembly includes a lower frame 12, a lower frame ear seat 11, a split pump mounting seat 7, a universal wheel mounting plate 9, a cylinder lower support seat 13, and a directional wheel mounting plate 19; the split pump includes a pressure rod 3, a spring 4, a split pump body 5, and an oil unloading foot pedal 6; the directional wheels 18, universal wheels 8, limiting pins 21, and limiting hooks 20 are mounted on the upper frame welding assembly; the flow strip includes a flow strip base 25 and flow strip rollers 26.

[0031] The side panels 2 are welded to both sides of the upper frame 1; the bottom panel 24 is welded to the bottom side of the upper frame 1; the rear panel 22 is welded to the rear side of the upper frame 1; the side panels 2, bottom panel 24, rear panel 22, and upper frame 1 form a box structure with an open front and top; Figure 2 As shown, a limiting pin positioning plate 29 is welded to the front of the bottom cover plate 24. The limiting pin 21 can be inserted into the limiting pin positioning plate 29 to limit the battery and prevent the battery from sliding out of the box structure.

[0032] like Figure 3 and Figure 4 As shown, the flow strip base 25 is installed on the front of the upper frame 1 by screw fixing plate 27 and multiple flow strip support plates 28 are welded to the upper frame 1 to strengthen the connection between the flow strip base 25 and the upper frame; the flow strip can reduce the friction between the battery and the bottom cover plate 24 during battery replacement through the flow strip roller 26 installed on the flow strip base 25.

[0033] The movable wheels include directional wheels 18 and omnidirectional wheels 8. The lower part of the lower frame 12 is symmetrically fixed with directional wheel mounting plates 19 and omnidirectional wheel mounting plates 9. The directional wheels 18 are mounted on the directional wheel mounting plates 19 by screws, and the omnidirectional wheels 8 are mounted on the omnidirectional wheel mounting plates 9 by screws. Brake pads are installed on the omnidirectional wheels 8. The omnidirectional wheels 8 can be locked by the brake pads, thereby fixing the position of the battery changing cart.

[0034] The casters and directional wheels in this embodiment adopt existing structures well known to those skilled in the art, and will not be described in detail here.

[0035] Two limiting hooks 20 are symmetrically installed on the front left and right sides of the upper frame 1. The limiting hooks 20 are slidably installed on the upper frame 1 via two pins. The upper frame 1 is provided with mounting grooves corresponding to the pins. During the battery replacement process, the limiting hooks 20 are hung on the corresponding structure of the mining explosion-proof lithium battery tracked transport vehicle to prevent the battery replacement trolley from sliding relative to each other during the battery replacement process. Upper frame lugs 10 are fixedly connected to the symmetrical sides of the upper frame 1, and lower frame lugs 11 are fixedly connected to the symmetrical sides of the lower frame 12. The upper frame lugs 10 and lower frame lugs 11 are hinged and fixed by two pins and cotter pins 23.

[0036] The mounting groove in this embodiment is set in a conventional manner well known to those skilled in the art, and will not be described in detail here.

[0037] The lower frame 12 has a split pump mounting base 7, on which the split pump body 5 is mounted and connected by screws. The split pump has a pressure rod 3 and an oil unloading foot pedal 6. Pressing the pressure rod 3 downwards extends the split pump cylinder 14, and stepping on the oil unloading foot pedal shortens the split pump cylinder 14, thereby adjusting the angle between the upper frame welded assembly and the ground.

[0038] The upper frame 1 is welded with an upper cylinder support seat 16, and the lower frame 12 is welded with a lower cylinder support seat 13. The telescopic end of the split pump cylinder 14 is hinged to the upper cylinder support seat 16 and the base end of the split pump cylinder 14 is hinged to the lower cylinder support seat 13 by a pin 15.

[0039] The fixed connections in this embodiment include existing connection methods well known to those skilled in the art, such as welding and bolting.

[0040] In this embodiment, the undisclosed structures in the upper frame 1, side cover plate 2, pressure rod 3, spring 4, split pump body 5, unloading foot pedal 6, split pump mounting base 7, caster wheel 8, caster wheel mounting plate 9, upper frame ear seat 10, lower frame ear seat 11, lower frame 12, cylinder lower support seat 13, split pump cylinder 14, pin shaft 15, cylinder upper support seat 16, screw 17, directional wheel 18, directional wheel mounting plate 19, limit hook 20, limit pin 21, rear cover plate 22, cotter pin 23, bottom cover plate 24, flow strip base 25, flow strip roller 26, flow strip fixing plate 27, flow strip support plate 28, and limit pin positioning plate 29 all adopt existing products or structures well known to those skilled in the art, and the connection methods between them also adopt existing connection methods well known to those skilled in the art, and will not be described in detail here.

[0041] A battery swapping trolley operates on the following principle: When performing a battery swapping operation, the trolley is first moved to a designated area on the side of a mining explosion-proof lithium battery wheeled transport vehicle. The pressure rod 3 and the oil unloading foot pedal 6 control the split pump to unload or supply oil, thereby shortening or extending the split pump cylinder. This adjusts the tilt angle of the upper frame welded components relative to the ground, ensuring successful positioning at the battery compartment connection point of the mining explosion-proof lithium battery wheeled transport vehicle. Then, the casters 8 are locked in place using their brake pads, and two limit hooks 20 are connected to the corresponding structures of the mining safety lithium battery drive wheeled transport vehicle, thus ensuring... Ensure the battery replacement trolley is parked stably; then, the operator smoothly removes the battery from the battery compartment of the mining safety lithium battery wheel transport vehicle and properly places it in the predetermined position on the bottom cover plate 24; the flow strip can effectively reduce the friction between the battery and the bottom cover plate 24 during the battery replacement process through several flow strip rollers 26 installed on the flow strip base 25; after the battery is replaced in the designated area of ​​the bottom cover plate 24, the battery is precisely limited and fixed by inserting the limit pin 21 into the limit pin positioning plate 29, which can better ensure the safety and convenience of rapid battery replacement under undulating ground conditions.

[0042] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A battery swap trolley, characterized in that, The application relates to a welding assembly for an upper frame and a lower frame, wherein the welding assembly for the upper frame comprises a box structure with an open upper end and a front end, the box structure comprising an upper frame (1) and a bottom cover plate (24) welded to the bottom of the upper frame (1); the welding assembly for the lower frame comprises a lower frame (12); the bottom of the end of the upper frame (1) away from the front end is hingedly connected to the lower frame (12); the lower frame (12) is provided with a split pump oil cylinder (14) for supporting and adjusting the height of the front end of the box structure and a split pump for controlling the split pump oil cylinder (14); the lower frame (12) is provided with a pressure rod (3) and an oil discharging pedal (6) for controlling the split pump; the upper part of the bottom cover plate (24) is provided with a flow bar; the front end of the upper frame (1) is provided with a slidable limiting hook (20); the lower part of the lower frame (12) is provided with a moving wheel; and the bottom cover plate (24) is provided with a limiting pin positioning plate (29) near the front end.

2. A battery swap trolley as claimed in claim 1, wherein, The flow bar comprises a flow bar base (25) and a flow bar roller (26); the flow bar base (25) is fixedly installed on the front part of the upper frame (1) through a flow bar fixing plate (27) by means of screws; and the flow bar base (25) is welded to the upper frame (1) through a plurality of flow bar supporting plates (28).

3. A battery changing trolley as claimed in claim 1 wherein, The moving wheel comprises a directional wheel (18) and a universal wheel (8); the lower part of the lower frame (12) is symmetrically fixedly connected with a directional wheel mounting plate (19) and a universal wheel mounting plate (9); the directional wheel (18) is installed on the directional wheel mounting plate (19) through screws; and the universal wheel (8) is installed on the universal wheel mounting plate (9) through screws; and the universal wheel (8) is provided with a brake pad.

4. The battery changing trolley of claim 1, wherein, The front part of the upper frame (1) is symmetrically provided with two limiting hooks (20); the limiting hooks (20) are fixed to the upper frame (1) through pin shafts; and the upper frame (1) is provided with mounting sliding grooves corresponding to the pin shafts.

5. A battery changing trolley as claimed in claim 1 wherein, The lower part of the upper frame (1) is symmetrically fixedly connected with upper frame ear seats (10); the upper part of the lower frame (12) is symmetrically fixedly connected with lower frame ear seats (11); and the upper frame ear seats (10) and the lower frame ear seats (11) are hingedly connected through pin shafts.

6. A battery changing trolley as claimed in claim 1 wherein, The split pump comprises a split pump body (5); the lower frame (12) is fixedly connected with a split pump mounting seat (7); and the split pump body (5) is mounted on the split pump mounting seat (7).

7. A battery changing trolley as claimed in claim 1 wherein, The upper frame (1) is welded with an oil cylinder upper supporting seat (16); the lower frame (12) is welded with an oil cylinder lower supporting seat (13); and the telescopic end of the split pump oil cylinder (14) and the oil cylinder upper supporting seat (16) and the base end of the split pump oil cylinder (14) and the oil cylinder lower supporting seat (13) are connected through pin shafts.

8. A battery changing trolley as claimed in claim 7, wherein, The oil cylinder lower supporting seat (13) is welded to the lower part of the lower frame (12).

9. A battery changing trolley as claimed in claim 1 wherein, Both sides of the upper frame (1) are welded with side cover plates (2) corresponding to bottom cover plates (24); the rear side of the upper frame (1) is welded with rear cover plates (22) corresponding to the bottom cover plates (24); the front part of the bottom cover plate (24) is welded and fixed with a limiting pin positioning plate (29).

10. The battery swap trolley of claim 1 or 9, wherein, The limiting pin positioning plate (29) is provided with limiting pin holes corresponding to limiting pins (21) for limiting the battery.

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