Double-side battery changing battery box structure of mine truck

Abstract

The utility model discloses a mine truck double-side battery replacing battery box structure which comprises two bottom brackets and battery replacing boxes installed on the two bottom brackets respectively, and the two bottom brackets are located on the two sides of a mine truck respectively and installed on a vehicle body girder. The bottom bracket is provided with a plurality of guide columns, a plurality of positioning pins and at least one locking mechanism, a box body frame of the battery replacing box is provided with guide holes corresponding to the guide columns, the positioning pins are inserted into pin holes of the box body frame, the locking mechanism comprises a spring bolt and a locking air cylinder for driving the spring bolt to be inserted into a locking groove of the box body frame, and the locking air cylinder is fixed to the bottom bracket. A push rod of the locking cylinder is connected with the spring bolt; the battery changing box comprises a plurality of installation layers and a box body frame, a plurality of battery packs are installed on each installation layer, and the battery packs are fixed to the box body frame through screws. Due to the arrangement of the multiple layers of battery packs, the cruising ability of the mine truck is guaranteed, the two battery changing boxes are located on the two sides of the truck beam, the carrying capacity of a carriage is guaranteed, and the gravity center balance of the whole truck is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery replacement for mining trucks, and in particular relates to a double-sided battery replacement battery box structure for mining trucks. Background Art

[0002] As China places increasing emphasis on environmental protection, electric mining trucks are replacing fuel-powered vehicles. Traditional mining trucks consume a significant amount of fuel and cause significant environmental pollution, making the development of electric mining trucks a crucial component in addressing environmental pollution.

[0003] At present, most of the battery boxes on the market are back-mounted. This type of battery box has a small capacity. In order to meet the endurance of electric mining trucks, the only way is to increase the number of battery packs to meet the demand. However, this method causes the battery box to be heavy and have a high center of gravity, which seriously affects the safety of electric mining trucks during driving. At the same time, this back-mounted battery box also greatly occupies the space in the mining truck compartment, reducing the carrying capacity of the mining truck. Therefore, in order to meet the actual needs of electric mining trucks for large power, long endurance and large carrying capacity, it is necessary to redesign a battery box structure. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a double-sided battery exchange box structure for a mining truck. The multi-layer battery pack arrangement ensures the endurance of the mining truck. The two battery exchange boxes are located on both sides of the vehicle beam, which not only ensures the carrying capacity of the carriage, but also ensures the balance of the center of gravity of the entire vehicle.

[0005] In order to solve the above technical problems, the present invention adopts a technical solution: a double-sided battery exchange battery box structure for a mining truck, comprising two bottom brackets and battery exchange boxes respectively mounted on the two bottom brackets. The two bottom brackets are respectively located on both sides of the mining truck, and the two bottom brackets are mounted on the vehicle body beam. The two battery exchange boxes are located on both sides of the vehicle beam, which not only ensures the carrying capacity of the vehicle body, but also ensures the balance of the center of gravity of the entire vehicle.

[0006] The locking pin is inserted into the pin hole of the box frame, and the locking mechanism includes a lock tongue and a locking cylinder that drives the lock tongue to be inserted into the lock groove of the box frame. The lock cylinder is fixed to the bottom bracket, and the push rod of the lock cylinder is connected to the lock tongue. The push rod sleeve is provided with a locking spring, and the locking spring is located between the locking cylinder and the lock tongue. The lock tongue is first guided by the guide column, and then the lock box is positioned by the locating pin. Finally, the lock tongue is inserted into the lock groove of the box frame by the locking cylinder to fix the battery box. It is worth noting that the push rod sleeve is provided with a locking spring, and the locking spring is located between the locking cylinder and the lock tongue. When the cylinder is powered off, the lock tongue can still be pushed into the lock groove by the locking spring.

[0007] The battery exchange box includes several installation layers and the box frame. Each installation layer is installed with several battery packs, and the battery packs are fixed to the box frame by screws.

[0008] Furthermore, upper guide sheets are provided on opposite sides of the battery pack of the upper installation layer, and middle guide sheets are provided on opposite sides of the battery pack of the middle installation layer, and limit parts are provided at the ends of the upper guide sheet and the middle guide sheet, and the limit parts are arranged perpendicular to the upper guide sheet / the middle guide sheet, and the upper guide sheet and the middle guide sheet both have installation parts, and the installation parts are fixed to the box frame, the upper guide sheet extends upward to form an inclined upper guide part, and the end of the middle guide sheet extends outward to form an inclined middle guide part. When the battery pack of the upper installation layer is put in from above, the battery pack is guided by the upper guide part and then limited by the upper guide sheet and the limit parts. When the middle battery pack is put in, it is guided by the middle guide part of the middle guide sheet and then limited by the middle guide sheet and the limit parts, so as to ensure that the battery pack is placed in place and will not be skewed.

[0009] Furthermore, a buffer assembly is provided above the battery exchange box, and the buffer assembly is installed on the dump box of the mining truck. The buffer assembly includes a U-shaped plate, a buffer rod, a buffer spring and a buffer plate. The U-shaped plate is fixed to the dump box, and one end of the buffer rod is provided with a protrusion. The other end of the buffer rod passes through the U-shaped plate and is connected to the mounting plate. The buffer spring is provided between the U-shaped plate and the mounting plate, and the buffer spring is sleeved on the buffer rod. The mounting plate is fixed to the buffer plate, and the buffer plate is located below the mounting plate. The dual setting of the buffer spring and the buffer plate can limit the vertical displacement of the battery exchange box, absorb the vertical impact, and reduce the impact on the locking mechanism, thereby ensuring the service life of the locking mechanism.

[0010] Furthermore, the bottom bracket is installed with a connector plug and a water cooling joint, the box frame is installed with a connector joint and a water cooling interface, the connector plug is plugged into the connector joint, the connector joint is electrically connected to the battery pack, the water cooling joint is connected to the water cooling interface, and the water cooling interface is connected to the water cooling pipe of the battery pack.

[0011] Furthermore, the connector plug is installed on a floating plate, the middle part of the bolt passes through the floating plate and the bottom bracket, a floating spring is provided between the floating plate and the bottom bracket, and the floating spring is sleeved on the bolt, so that the connector plug has a certain floating effect, ensuring that the connector joint of the battery swap box and the connector plug of the bottom bracket are more closely connected and in place, thereby improving the service life.

[0012] Furthermore, the two bottom brackets are connected via a bottom bracket support beam, and a wire trough is installed above the bottom bracket support beam.

[0013] Furthermore, the box frame is equipped with an oblique support rod, both ends of the oblique support rod are respectively fixed to the mounting sheet metal, and the mounting sheet metal is fixed to the box frame.

[0014] Furthermore, the bottom bracket is installed with several load-bearing blocks and several buffer pads. The load-bearing blocks make the weight distribution of the battery swap box on the bottom bracket more reasonable and uniform, and the buffer blocks play a buffering role on the battery swap box.

[0015] Furthermore, a mudguard is installed on the side of the bottom bracket.

[0016] Furthermore, the locking tongue is provided with a guiding inclined surface.

[0017] The beneficial effects of the present invention include at least the following:

[0018] The utility model includes two bottom brackets and battery-swap boxes respectively mounted on the two bottom brackets. The two bottom brackets are respectively located on both sides of the mining truck, and the two bottom brackets are mounted on the vehicle body beam. The battery-swap box includes several mounting layers and a box frame. Each mounting layer is equipped with several battery packs, which are fixed to the box frame by screws. The arrangement of multiple battery packs ensures the endurance of the mining truck. The two battery-swap boxes are located on both sides of the vehicle beam, which not only ensures the carrying capacity of the vehicle compartment, but also ensures the balance of the center of gravity of the entire vehicle.

[0019] The bottom bracket of the utility model is equipped with several guide columns, several positioning pins and at least one locking mechanism. The box frame of the battery swap box is provided with guide holes corresponding to the guide columns, and the positioning pins are inserted into the pin holes of the box frame. The locking mechanism includes a lock tongue, a locking cylinder for driving the lock tongue to insert into the lock groove of the box frame, the locking cylinder is fixed to the bottom bracket, and the push rod of the locking cylinder is connected to the lock tongue. When the battery box is placed on the bottom bracket, the battery swap box is first guided by the guide columns, and then the battery swap box is positioned by the positioning pins, and finally the lock tongue is inserted into the lock groove of the box frame by the locking cylinder to fix the battery box. It is worth noting that the push rod is covered with a locking spring, and the locking spring is located between the locking cylinder and the lock tongue. When the cylinder is powered off, the lock tongue can still be pushed into the lock groove by the locking spring;

[0020] The upper guide sheet metal of the present invention is set up. When the battery pack of the upper mounting layer is placed from above, the battery pack is guided by the upper guide part, and then limited by the upper guide sheet metal and the limiting part. When the battery pack of the middle layer is placed, it is guided by the middle guide part of the middle guide sheet metal, and then limited by the middle guide sheet metal and the limiting part, ensuring that the battery pack is placed in place and will not be skewed.

[0021] The buffer assembly of the utility model comprises a U-shaped plate, a buffer rod, a buffer spring and a buffer plate. The U-shaped plate is fixed to the dump box. One end of the buffer rod is provided with a convex head. The other end of the buffer rod passes through the U-shaped plate and is connected to the mounting plate. A buffer spring is provided between the U-shaped plate and the mounting plate, and the buffer spring is sleeved on the buffer rod. The mounting plate and the buffer plate are fixed, and the buffer plate is located below the mounting plate. The dual arrangement of the buffer spring and the buffer plate can limit the displacement of the battery swap box in the vertical direction, absorb the impact in the vertical direction, and reduce the impact on the locking mechanism, thereby ensuring the service life of the locking mechanism.

[0022] The connector plug of the utility model is installed on the floating plate, and the middle part of the bolt passes through the floating plate and the bottom bracket. A floating spring is provided between the floating plate and the bottom bracket. The floating spring is sleeved on the bolt, so that the connector plug has a certain floating effect, ensuring that the connector joint of the battery swap box and the connector plug of the bottom bracket are more closely connected and in place, thereby improving the service life.

[0023] The bottom bracket of the utility model is equipped with several load-bearing blocks and several buffer pads. The load-bearing blocks make the weight distribution of the battery-swap box on the bottom bracket more reasonable and uniform, and the buffer blocks play a buffering role for the battery-swap box.

[0024] The two bottom brackets of the utility model are connected by a bottom bracket support beam, which bears part of the gravity on the bottom bracket, prevents the bottom bracket from being deformed on the outer side of the vehicle, and improves the load-bearing capacity of the bottom bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 This is one of the structural diagrams of the battery replacement box of the present utility model;

[0027] Figure 3 This utility model Figure 2 A magnified view of point A;

[0028] Figure 4 This utility model Figure 2 An enlarged view of point B;

[0029] Figure 5 It is a structural diagram of the battery pack and the upper guide sheet metal of the utility model;

[0030] Figure 6 This is a schematic structural diagram of the battery pack and the middle guide sheet metal of the utility model;

[0031] Figure 7 This is the second structural diagram of the battery replacement box of the present utility model;

[0032] Figure 8It is a structural schematic diagram of the bottom bracket of the utility model;

[0033] Figure 9 This utility model Figure 8 The enlarged view of point C;

[0034] Figure 10 It is a cross-sectional view of the battery-changing box of the present utility model;

[0035] Figure 11 This utility model Figure 10 The enlarged view of point D;

[0036] Figure 12 It is a structural diagram of the buffer assembly of the utility model;

[0037] The parts in the accompanying drawings are marked as follows:

[0038] 1. Bottom bracket; 11. Guide column; 111. Guide surface; 12. Positioning pin; 13. Locking mechanism; 131. Lock tongue; 1311. Guide slope; 132. Locking cylinder; 1321. Push rod; 133. Locking spring; 14. Fender; 2. Battery exchange box; 20. Mounting layer; 201. Upper guide sheet metal; 2011. Upper guide part; 2021. Middle guide part; 202. Middle guide sheet metal; 21. Box frame; 22. Guide hole; 23. Pin hole; 24. Lock slot; 2 5. Limiting part; 26. Mounting part; 27. Connector joint; 28. Water cooling interface; 29. ​​Diagonal support rod; 291. Mounting sheet metal; 3. Battery pack; 4. Buffer assembly; 41. U-shaped plate; 42. Buffer rod; 421. Boss; 43. Buffer spring; 44. Buffer plate; 45. Mounting plate; 5. Connector plug; 51. Floating plate; 52. Bolt; 53. Floating spring; 6. Water cooling joint; 7. Bottom support beam; 71. Wire trough; 81. Load-bearing block; 82. Buffer pad; 9. Vehicle body beam. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0040] Example: A double-sided battery box structure for mining trucks, such as Figure 1 As shown, it includes two bottom brackets 1 and battery-changing boxes 2 respectively installed on the two bottom brackets 1. The two bottom brackets 1 are respectively located on both sides of the mining truck, and the two bottom brackets 1 are installed on the vehicle body beam 9;

[0041] like Figure 8 As shown, the bottom bracket 1 is equipped with several guide columns 11, several positioning pins 12 and at least one locking mechanism 13. Figure 7 As shown, the box frame 21 of the battery exchange box 2 is provided with a guide hole 22 corresponding to the guide column 11, and the positioning pin 12 is inserted into the pin hole 23 of the box frame 21. Figure 10 He Ru Figure 11 As shown, the locking mechanism 13 includes a locking tongue 131, a locking cylinder 132 that drives the locking tongue 131 to insert into the locking groove 24 of the box frame 21, the locking cylinder 132 is fixed to the bottom bracket 1, and a push rod 1321 of the locking cylinder 132 is connected to the locking tongue 131, and the push rod 1321 is covered with a locking spring 133, and the locking spring 133 is located between the locking cylinder 132 and the locking tongue 131;

[0042] In a specific implementation, the guide column is provided with a guide surface 111;

[0043] like Figure 2 He Ru Figure 3 As shown, the battery exchange box 2 includes several installation layers 20 and the box frame 21. Each installation layer 20 is installed with several battery packs 3, and the battery packs 3 are fixed to the box frame 21 by screws.

[0044] like Figure 5 As shown, the upper guide sheet metal 201 is provided on opposite sides of the battery pack 3 of the upper mounting layer 20, as shown in FIG. Figure 6 As shown, a middle-layer guide sheet metal 202 is provided on opposite sides of the battery pack 3 of the middle-layer mounting layer 20, and the ends of the upper-layer guide sheet metal 201 and the middle-layer guide sheet metal 202 are both provided with a limiting portion 25, and the limiting portion 25 is arranged perpendicular to the upper-layer guide sheet metal 201 / the middle-layer guide sheet metal. The upper-layer guide sheet metal and the middle-layer guide sheet metal both have a mounting portion 26, and the mounting portion 26 is fixed to the box frame 21. The upper-layer guide sheet metal 201 extends upward to form an inclined upper-layer guide portion 2011, and the end of the middle-layer guide sheet metal extends outward to form an inclined middle-layer guide portion 2021.

[0045] like Figure 12 As shown, a buffer assembly 4 is provided above the battery exchange box 2, and the buffer assembly 4 is installed on the dump truck of the mining truck. The buffer assembly 4 includes a U-shaped plate 41, a buffer rod 42, a buffer spring 43 and a buffer plate 44. The U-shaped plate 41 is fixed to the dump truck, and one end of the buffer rod 42 is provided with a boss 421. The other end of the buffer rod 42 passes through the U-shaped plate 41 and is connected to the mounting plate 45. The buffer spring 43 is provided between the U-shaped plate 41 and the mounting plate 45, and the buffer spring 43 is sleeved on the buffer rod 42. The mounting plate 45 is fixed to the buffer plate 44, and the buffer plate 44 is located below the mounting plate 45.

[0046] The bottom bracket 1 is installed with a connector plug 5 and a water cooling joint 6, and the box frame 21 is installed with a connector joint 27 and a water cooling interface 28. The connector plug 5 is plugged into the connector joint 27, and the connector joint 27 is electrically connected to the battery pack 3. The water cooling joint 6 is connected to the water cooling interface 28, and the water cooling interface 28 is connected to the water cooling pipe of the battery pack 3.

[0047] like Figure 9 As shown, the connector plug 5 is installed on the floating plate 51 , the middle part of the bolt 52 passes through the floating plate 51 and the bottom bracket 1 , a floating spring 53 is provided between the floating plate 51 and the bottom bracket 1 , and the floating spring 53 is sleeved on the bolt 52 .

[0048] The two bottom brackets 1 are connected by a bottom bracket support beam 7, and a wire trough 71 is installed above the bottom bracket support beam 7. In specific implementation, the wire trough is provided with a wire harness and a water pipe. The wire harness is electrically connected to the connector, and the water pipe is connected to the water cooling connector. When the mining truck is driving in a harsh environment such as a mine, the wire trough protects the wire harness and water pipe, preventing damage and extending the service life, while also ensuring the normal use of the mining truck.

[0049] like Figure 4 As shown, the box frame 21 is installed with an oblique support rod 29, and both ends of the oblique support rod 29 are respectively fixed to the mounting sheet metal 291. The mounting sheet metal 291 is fixed to the box frame 21 to improve the overall firmness of the box frame.

[0050] The bottom bracket 1 is equipped with a plurality of load-bearing blocks 81 and a plurality of buffer pads 82 .

[0051] A fender 14 is installed on the side of the bottom bracket 1, so that mud, sand, water stains, etc. generated during the driving of the mining truck will not reach the battery exchange box and will not affect the use of the battery exchange box.

[0052] The locking tongue 131 is provided with a guiding inclined surface 1311 .

[0053] The working principle of the utility model is as follows: two base supports are installed on both sides of the vehicle's beam, the battery swap box is first guided by the guide column, then the battery swap box is positioned by the positioning pin, and finally the lock tongue is inserted into the lock slot of the box frame by the locking cylinder to fix the battery box, which not only ensures the carrying capacity of the car body, but also ensures the balance of the center of gravity of the entire vehicle.

[0054] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A double-sided battery box structure for mining trucks, characterized by: It comprises two bottom brackets (1) and battery exchange boxes (2) respectively mounted on the two bottom brackets, wherein the two bottom brackets are respectively located on both sides of the mining truck, and the two bottom brackets are mounted on the vehicle body beam (9); The bottom bracket is equipped with a plurality of guide columns (11), a plurality of positioning pins (12) and at least one locking mechanism (13); the box frame (21) of the battery-changing box is provided with a guide hole (22) corresponding to the guide column; the positioning pin is inserted into the pin hole (23) of the box frame; the locking mechanism includes a lock tongue (131) and a locking cylinder (132) for driving the lock tongue to be inserted into the lock groove (24) of the box frame; the locking cylinder is fixed to the bottom bracket, and the push rod (1321) of the locking cylinder is connected to the lock tongue; the push rod is provided with a locking spring (133); the locking spring is located between the locking cylinder and the lock tongue; The battery exchange box comprises several installation layers (20) and the box frame, each installation layer is installed with several battery packs (3), and the battery packs are fixed to the box frame by screws.

2. The double-sided battery replacement battery box structure for mining trucks according to claim 1 is characterized by: Upper guide sheet metals (201) are provided on opposite sides of the battery pack of the upper installation layer, and middle guide sheet metals (202) are provided on opposite sides of the battery pack of the middle installation layer. The ends of the upper guide sheet metal and the middle guide sheet metal are both provided with limiting portions (25), and the limiting portions are arranged perpendicularly to the upper guide sheet metal / the middle guide sheet metal. The upper guide sheet metal and the middle guide sheet metal both have mounting portions (26), and the mounting portions are fixed to the box frame. The upper guide sheet metal extends upward to form an inclined upper guide portion (2011), and the ends of the middle guide sheet metal extend outward to form an inclined middle guide portion (2021).

3. The double-sided battery replacement battery box structure for mining trucks according to claim 1 is characterized by: A buffer assembly (4) is provided above the battery exchange box, and the buffer assembly is installed on the dump truck of the mining truck. The buffer assembly includes a U-shaped plate (41), a buffer rod (42), a buffer spring (43) and a buffer plate (44). The U-shaped plate is fixed to the dump truck, one end of the buffer rod is provided with a protrusion (421), and the other end of the buffer rod passes through the U-shaped plate and is connected to the mounting plate (45). The buffer spring is provided between the U-shaped plate and the mounting plate, and the buffer spring is sleeved on the buffer rod. The mounting plate is fixed to the buffer plate, and the buffer plate is located below the mounting plate.

4. The double-sided battery replacement battery box structure for mining trucks according to claim 1 is characterized by: The bottom bracket is installed with a connector plug (5) and a water cooling joint (6), and the box frame is installed with a connector joint (27) and a water cooling interface (28), the connector plug is plugged into the connector joint, the connector joint is electrically connected to the battery pack, the water cooling joint is communicated with the water cooling interface, and the water cooling interface is communicated with a water cooling pipe of the battery pack.

5. The double-sided battery replacement battery box structure for mining trucks according to claim 4 is characterized by: The connector plug is mounted on a floating plate (51), the middle portion of a bolt (52) passes through the floating plate and the bottom bracket, a floating spring (53) is provided between the floating plate and the bottom bracket, and the floating spring is sleeved on the bolt.

6. The double-sided battery replacement battery box structure for mining trucks according to claim 1 is characterized by: The two bottom brackets are connected via a bottom bracket support beam (7), and a wire trough (71) is installed above the bottom bracket support beam.

7. The double-sided battery replacement battery box structure for mining trucks according to claim 1 is characterized by: The box frame is installed with an oblique support rod (29), and both ends of the oblique support rod are respectively fixed to the mounting sheet metal (291), and the mounting sheet metal is fixed to the box frame.

8. The double-sided battery replacement battery box structure for mining trucks according to claim 1 is characterized by: The bottom bracket is equipped with a plurality of load-bearing blocks (81) and a plurality of buffer pads (82).

9. The double-sided battery replacement battery box structure for mining trucks according to claim 1 is characterized by: A fender (14) is installed on the side of the bottom bracket.

10. The mining truck double-sided battery replacement battery box structure according to claim 1 is characterized by: The locking tongue is provided with a guiding inclined surface (1311).

Images