A mine card battery box fixing device and mine truck

Abstract

The application discloses a mine truck battery replacement battery box fixing device and belongs to the technical field of engineering vehicles. The left and right protection frames in the mine truck battery replacement battery box fixing device are installed on the mine truck brim, so that the left protection frame and the right protection frame can be driven to shift when the mine truck brim is lifted, the operation steps for disassembling the battery replacement battery box are simplified, the mine truck battery replacement battery box fixing device is fixed and locked mechanically, a control system need not be equipped to avoid the occurrence of unlocking faults, the structure is simple, external power sources need not be driven, and the manufacturing cost is low. The battery box has good support stability in the horizontal direction and the vertical direction, is no longer affected by the high gravity center of the battery, and is suitable for the harsh operation environment of mines.

Description

Technical Field

[0001] This application relates to the field of engineering vehicle technology, and in particular to a battery box fixing device for mining trucks and a mining truck vehicle. Background Technology

[0002] Electric mining trucks do not use fossil fuels or other energy sources; instead, they are equipped with power batteries and motor drive systems. Due to their high power consumption and long battery charging time, most electric mining trucks use a battery swapping system. When the battery level is between 20% and 30% of its state of charge (SOC), the truck travels to a battery swapping station to replace the battery with a fully charged one.

[0003] To improve the stability of the battery box mounted on the chassis, multiple locking mechanisms are typically used to secure it. Existing locking mechanisms generally use cylinders to directly drive the locking blocks to lock or clamp the battery box. Pneumatic locking structures have relatively low locking force, making them prone to problems such as the locking tongue failing to extend or retract properly, resulting in a high failure rate. Furthermore, air leaks and insufficient system pressure pose safety hazards. Additionally, the air compressor in the pneumatic system is affected by the ambient air quality, leading to unstable pressure, and its size and lifespan are insufficient to meet the requirements of the mining working environment. Utility Model Content

[0004] This application provides a battery box fixing device for mining trucks. It solves the technical problem of unstable fixing of the battery box by the existing battery box locking mechanism. The technical solution is as follows: On one hand, a battery pack fixing device for mining trucks is provided, which is installed on the rear side of the cab of the mining truck. The battery pack fixing device for mining trucks includes: The base bracket, the front and rear protective frames arranged opposite each other in a first direction, the left and right protective frames arranged opposite each other in a second direction, and at least one clamping component; The bottom of the base bracket is fixed to the frame of the mining truck, and one side of both the front and rear protective frames is fixed to the top of the base bracket. The left and right protective frames are respectively fixed to the two sides of the mining truck's cap in the mining truck vehicle; the bottom bracket, left and right protective frames, as well as the front and rear protective frames, form a space for accommodating the battery swapping box. When the mine car's cap is in the lowered state, the mine car's cap is at the top of the receiving space. The clamping component is installed on the side of the mine car's cap facing the receiving space and is used to apply a force along a third direction to the battery swapping box placed in the receiving space. The first direction, the second direction, and the third direction are perpendicular to each other.

[0005] Optionally, the battery box fixing device for the mining truck further includes: an elastic telescopic limiting member distributed within the accommodating space, one end of the elastic telescopic limiting member being fixed to the side of the target protective frame facing the accommodating space, and the other end of the elastic telescopic limiting member abutting against the outer side of the battery box; the target anti-slip frame is at least one of a front protective frame, a rear protective frame, a left protective frame, and a right protective frame; The other end of the elastic telescopic limiting member can telescopically move relative to the battery swapping box in a direction perpendicular to the outer side of the battery swapping box.

[0006] Optionally, the target protective frame has a guide mounting groove on the side facing the accommodating space, one end of the elastic telescopic limiting member is fixed in the guide mounting groove, and the other end of the elastic telescopic limiting member extends out of the guide mounting groove and abuts against the battery swapping box.

[0007] Optionally, the elastic telescopic limiting component includes a compression spring and a limiting ball. The compression spring is fixed in the guide mounting groove, a portion of the limiting ball is located in the guide mounting groove, and a portion of the limiting ball is located outside the guide mounting groove. The limiting ball is connected to the end of the compression spring. After the battery swapping box is placed in the receiving space, the limiting ball abuts against the outer surface of the battery swapping box.

[0008] Optionally, the clamping component includes: a first connector, a second connector, and an elastic member. One end of the first connector is fastened to the side of the mining truck cap facing the receiving space. The second connector is slidably connected to the first connector in a third direction. Both ends of the elastic member are fastened to the ends of the first connector and the second connector opposite to the first connector, respectively. The second connector abuts against the top of the battery swapping box.

[0009] Optionally, the first connector has a connecting hole, a portion of the second connector is slidably installed in the connecting hole, and another portion of the second connector is located outside the connecting hole and has a limiting plate at its end; the elastic member is sleeved on the first connector and the second connector and its two ends are respectively fastened to the limiting plate and the end of the first connector that is connected to the brim of the mining truck.

[0010] Optionally, the clamping component may further include a buffer pad fixed to one side of the limiting plate.

[0011] Optionally, both the front and rear protective frames include: a plurality of first support rods arranged in an array along the third direction, and a plurality of second support rods arranged in an array along the second direction, wherein the first support rods extend along the second direction, the second support rods extend along the third direction, and the plurality of second support rods are fastened to the plurality of first support rods.

[0012] Optionally, the accommodating space includes two sub-accommodating spaces arranged side by side along the second direction, the two sub-accommodating spaces being used to accommodate two battery swapping boxes respectively.

[0013] On the other hand, a mining truck vehicle is provided, comprising: a frame and a battery pack fixing device for the mining truck, wherein a base bracket in the battery pack fixing device is fixed to the frame. The battery pack fixing device is any of the aforementioned types.

[0014] The beneficial effects of the technical solutions provided in this application include at least the following: The left and right protective frames of this mining truck battery swapping box fixing device are installed on the truck's visor, allowing the left and right protective frames to move when the visor is raised. This simplifies the disassembly and reassembly of the battery swapping box. Furthermore, the purely mechanical fixing device eliminates the need for a control system, preventing unlocking malfunctions. Its simple structure requires no external power source, resulting in low manufacturing costs. The battery box offers good horizontal and vertical stability, free from the effects of a high battery center of gravity, making it suitable for harsh mining environments. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a battery box fixing device for mining trucks integrated on a mining truck, according to an embodiment of this application. Figure 2 yes Figure 1 Showing a front view of the structure; Figure 3 yes Figure 1 A side view of the structure shown; Figure 4 This is a schematic diagram of the structure of a front and rear protective frame provided in an embodiment of this application; Figure 5 This is a schematic diagram of the installation of the left and right protective frames and the mine car brim provided in the embodiments of this application; Figure 6 This is an installation diagram of an elastic telescopic limiting member and a protective frame provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of a clamping component provided in an embodiment of this application; Figure 8This is a schematic diagram of the structure of a base bracket provided in an embodiment of this application.

[0017] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0018] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0020] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of a battery box fixing device for mining trucks integrated onto the mining truck, according to an embodiment of this application. Figure 2 yes Figure 1 A front view of the structure is shown. Figure 3 yes Figure 1 The diagram shows a side view of the structure. The battery pack fixing device for mining trucks can be installed on the rear side of the cab A1 of the mining truck. The battery pack fixing device for mining trucks may include: a base bracket 100, a front protective frame 200 and a rear protective frame 300 arranged opposite each other along a first direction f1, a left protective frame 400 and a right protective frame 500 arranged opposite each other along a second direction f2, and at least one clamping member 600.

[0021] In the battery box fixing device for mining trucks, the bottom of the base bracket 100 is fixed to the frame A2 of the mining truck vehicle, and one side of the front protective frame 200 and the rear protective frame 300 are fixed to the top of the base bracket 100.

[0022] The left protective frame 400 and right protective frame 500 in the battery swapping box fixing device of the mining truck are respectively fixed to the two sides of the mining truck visor A31 in the mining truck vehicle. The bottom bracket 100, left protective frame 400, right protective frame 500, front protective frame 200 and rear protective frame 300 can form the accommodating space Q of the battery swapping box D. It should be noted that the mining truck visor A31 is a unique structure of mining trucks, integrally constructed with the mining truck cargo box A3. The mining truck visor A31 covers the entire cab A1 and platform, and is used to protect the auxiliary equipment on the cab A1 and platform. Here, the left protective frame 400 and right protective frame 500 can be left and right protective plates, and the width of the left and right protective plates is slightly smaller than the width of the battery swapping box D.

[0023] When the mine car's cap A31 is in the lowered state, it is at the top of the receiving space Q. A clamping component 600 is installed on the side of the cap A31 facing the receiving space Q and applies a force along a third direction f3 to the battery swapping box D placed within the receiving space Q. The first direction f1, the second direction f2, and the third direction f3 can be perpendicular to each other. For example, there can be multiple clamping components 600, which can be arranged along the length of the battery swapping box D.

[0024] For example, the front protective frame 200 and rear protective frame 300 fixed on the base bracket 100, and the left protective frame 400 and right protective frame 500 installed on the brim A31 of the mining truck, form a receiving space Q. The battery swapping box D is placed behind the receiving space Q. When the mining truck is transporting, the front and rear protective frames, left and right protective frames, and vertical clamping components provide fixed support, ensuring that the battery box is not affected by road bumps, uphill or downhill slopes, and will not jump or shift. In addition, during the battery swapping operation, the mining truck lifting device first lifts the cargo box, and at the same time, it lifts the brim. The vertical clamping components of the battery box first detach from the top of the battery box, and then the left and right protective frames also detach from the battery box, completing the release of fixation in both the vertical and left and right directions. Then, the side-top-hanging battery swapping machine lifts the battery box at the same time, and then takes the battery box out from the side of the mining truck and puts it into the battery swapping station for charging. The fully charged battery box is first inserted into the side of the mining truck via a side-mounted battery swapping machine, then lowered vertically. The mining truck cargo box then returns to its original position, the hood descends, and the left and right protective frames and vertical clamping components return to their positions, thus securing the battery box in both vertical and lateral directions.

[0025] In this embodiment, the left and right protective frames of the mining truck battery swapping box fixing device are installed on the mining truck visor A31. This allows the left protective frame 400 and the right protective frame 500 to shift when the mining truck visor A31 is raised, simplifying the disassembly process of the battery swapping box. Furthermore, the battery swapping box fixing device uses purely mechanical locking, eliminating the need for a control system and preventing unlocking failures. Its simple structure requires no external power source, resulting in low manufacturing costs. The battery box provides good horizontal and vertical stability, is no longer affected by the high center of gravity of the battery, and is suitable for harsh mining environments.

[0026] In summary, this application provides a battery box fixing device for mining trucks, which may include: a base bracket, a front protective frame and a rear protective frame arranged opposite each other along a first direction, a left protective frame and a right protective frame arranged opposite each other along a second direction, and at least one clamping component. The left and right protective frames in this battery box fixing device are installed on the truck's cap, allowing the left and right protective frames to shift when the cap is raised. This simplifies the disassembly of the battery box. Furthermore, the battery box fixing device uses purely mechanical locking, eliminating the need for a control system and preventing unlocking failures. Its simple structure requires no external power source and has low manufacturing costs. The battery box provides good horizontal and vertical stability, is no longer affected by the battery's high center of gravity, and is suitable for harsh mining environments.

[0027] Optional, please refer to Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the structure of a front and rear protective frame provided in an embodiment of this application. Figure 5 This is a schematic diagram of the installation of the left and right protective frames and the brim of the mining truck provided in the embodiments of this application. The fixing device for the mining truck battery swapping box may further include: elastic telescopic limiting members 700 distributed in the accommodating space Q, one end of the elastic telescopic limiting member 700 being fixed to the side of the target protective frame facing the accommodating space Q, and the other end of the elastic telescopic limiting member 700 abutting against the outer side of the battery swapping box D. The target protective frame is at least one of the front protective frame 200, the rear protective frame 300, the left protective frame 400, and the right protective frame 500. The other end of the elastic telescopic limiting member 700 can telescopically move relative to the battery swapping box D in a direction perpendicular to the outer side of the battery swapping box D. In this way, during the battery swapping process, the elastic telescopic limiting member 700 can telescopically move perpendicular to the surface of the battery swapping box D without affecting the movement of the battery swapping box; after the battery swapping is completed, the other end of the elastic telescopic limiting member 700 presses against the surface of the battery swapping box, playing a fixed support role and preventing the battery swapping box D from shifting forward / backward / left / right.

[0028] Please refer to the following in this application: Figure 6 , Figure 6This is a schematic diagram illustrating the installation of an elastic telescopic limiting member and a protective frame according to an embodiment of this application. The target protective frame has a guide mounting groove C on the side facing the accommodating space Q. One end of the elastic telescopic limiting member 700 is fixed within the guide mounting groove C, and the other end extends out of the guide mounting groove C and abuts against the battery swapping box D. Thus, the guide mounting groove C provides a certain guiding effect on the telescopic movement of the elastic telescopic limiting member 700, making the abutment and limiting of the battery swapping box D relatively stable.

[0029] Optional, such as Figure 6 As shown, the elastic telescopic limiting member 700 may include a compression spring 701 and a limiting ball 702. The compression spring 701 is fixed in the guide mounting groove C, and part of the limiting ball 702 is located inside the guide mounting groove C, while another part is located outside the guide mounting groove C. The limiting ball 702 is connected to the end of the compression spring 701. After the battery swapping box D is placed in the receiving space Q, the limiting ball 702 abuts against the outer surface of the battery swapping box D. Thus, during the battery swapping process, the limiting ball 702 can extend and retract perpendicular to the surface of the battery swapping box D without affecting the movement of the battery swapping box D. After the battery swapping is completed, the compression spring 701 presses the limiting ball 702 tightly against the surface of the battery swapping box, providing a fixed support and preventing the battery swapping box D from shifting forward / backward or left / right.

[0030] In the embodiments of this application, please refer to Figure 7 , Figure 7 This is a schematic diagram of a clamping component provided in an embodiment of this application. The clamping component 600 includes: a first connecting member 601, a second connecting member 602, and an elastic member 603. One end of the first connecting member 601 is fastened to the side of the mining truck brim A31 facing the receiving space Q. The second connecting member 602 is slidably connected to the first connecting member 601 along a third direction f. Both ends of the elastic member 603 are fastened to the ends of the first connecting member 601 and the second connecting member 602 opposite to the first connecting member 601, respectively. The second connecting member 602 abuts against the top of the battery swapping box D. Thus, when the mining truck brim A31 descends, the battery swapping box D is pressed against the top of the battery swapping box D by the clamping component 600, preventing the battery swapping box D from jumping vertically. For example, after the second connector 602 abuts against the top of the battery swapping box D, the elastic member 603 is compressed as the second connector 602 moves relative to the first connector 601. The compressed elastic member 603 applies a reaction force to the end of the second connector 602, causing the end of the second connector 602 to abut and press against the top of the battery swapping box D.

[0031] For example, such as Figure 7As shown, the first connector 601 has a connecting hole k. A portion of the second connector 602 is slidably installed within the connecting hole k of the first connector 601, while the other portion of the second connector 602 is located outside the connecting hole k and has a limiting plate 602a at its end. An elastic member 603 is sleeved on the first connector 601 and the second connector 602, and its two ends are respectively fastened to the limiting plate 602a and the end of the first connector 601 that connects to the brim of the mining truck. Here, the first connector 601 can be a connecting post with a connecting hole k, and the second connector 602 can be a clamping post, with the end of the clamping post having a limiting plate 602a. Additionally, the end of the first connector 601 that connects to the brim of the mining truck can have a connecting plate 601a for fastening to the brim of the mining truck A31. For example, the elastic member 603 can be a coil spring or a spring sheet, etc.

[0032] Optional, such as Figure 7 As shown, the clamping component 600 also includes a buffer pad 604 fixed to one side of the limiting plate 602a. In this way, by having the buffer pad 604 contact the outer surface of the battery swapping box D, a certain margin can be provided for the movement of the battery swapping box D, and the safety of the battery swapping box D can also be protected.

[0033] In the embodiments of this application, such as Figure 4 As shown, both the front protective frame 200 and the rear protective frame 300 include: a plurality of first support rods 201 arranged in an array along a third direction f3, and a plurality of second support rods 202 arranged in an array along a second direction f2. The first support rods 201 extend along the second direction f2, and the second support rods 202 extend along the third direction f3. The plurality of second support rods 202 are fastened to the plurality of first support rods 201. In this way, the number of first support rods 201 can be set according to the height of the battery swapping box D, and the number of second support rods 202 can be set according to the length of the battery swapping box D to achieve stable positioning of the battery swapping box D. For example, the support rods in the front protective frame 200 and the rear protective frame 300 can be made of square tubing.

[0034] Optional, such as Figure 1 and Figure 2 As shown, the accommodating space Q includes two sub-accommodating spaces Q1 arranged side by side along the second direction f2. The two sub-accommodating spaces Q1 are used to accommodate two battery swapping boxes D respectively. Here, a reinforcing rod 203 can be installed between the two sub-accommodating spaces Q1. This reinforcing rod 203 can reinforce the front protective frame 200 and the rear protective frame 300, and also serves to separate the two sub-accommodating spaces Q1. The high-capacity battery boxes of the mining truck are arranged in two battery boxes on the left and right sides, using a double-sided top-mounted battery swapping system to increase the battery capacity of the mining truck and simultaneously solve the problem of excessive mechanical load on the top-mounted battery swapping system for high-capacity battery boxes.

[0035] In the embodiments of this application, please refer to Figure 8 , Figure 8 This is a schematic diagram of a base bracket provided in an embodiment of this application. The top of the base bracket 100 may have at least one mounting positioning post 101, and the bottom of the battery swapping box D has a mounting positioning hole (not shown in the figure) that mates with at least one mounting positioning post 101. In this way, the battery box is positioned by the cooperation of the mounting positioning post and the mounting positioning hole. The at least one mounting positioning post 101 may include at least one of a slanted post and a tapered pin.

[0036] In summary, this application provides a battery box fixing device for mining trucks, which may include: a base bracket, a front protective frame and a rear protective frame arranged opposite each other along a first direction, a left protective frame and a right protective frame arranged opposite each other along a second direction, and at least one clamping component. The left and right protective frames in this battery box fixing device are installed on the truck's cap, allowing the left and right protective frames to shift when the cap is raised. This simplifies the disassembly of the battery box. Furthermore, the battery box fixing device uses purely mechanical locking, eliminating the need for a control system and preventing unlocking failures. Its simple structure requires no external power source and has low manufacturing costs. The battery box provides good horizontal and vertical stability, is no longer affected by the battery's high center of gravity, and is suitable for harsh mining environments.

[0037] This application also provides a mining truck vehicle, which may include: a frame and a battery pack fixing device for the mining truck, wherein the base bracket of the battery pack fixing device is fixed to the frame. The battery pack fixing device can be any of the aforementioned battery pack fixing devices.

[0038] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0039] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery box fixing device for mining trucks, installed on the rear side of the cab of a mining truck, characterized in that, The battery box fixing device for mining trucks includes: a base bracket, a front protective frame and a rear protective frame arranged opposite each other along a first direction, a left protective frame and a right protective frame arranged opposite each other along a second direction, and at least one clamping component; The bottom of the base bracket is fixed to the frame of the mining truck, and one side of both the front and rear protective frames is fixed to the top of the base bracket. The left and right protective frames are respectively fixed to the two sides of the mining truck's cap in the mining truck vehicle; the bottom bracket, left and right protective frames, as well as the front and rear protective frames, form a space for accommodating the battery swapping box. When the mine car's cap is in the lowered state, the mine car's cap is at the top of the receiving space. The clamping component is installed on the side of the mine car's cap facing the receiving space and is used to apply a force along a third direction to the battery swapping box placed in the receiving space. The first direction, the second direction, and the third direction are perpendicular to each other.

2. The fixing device for the battery box of the mining truck according to claim 1, characterized in that, The battery swapping box fixing device for mining trucks further includes: elastic telescopic limiting members distributed within the accommodating space, one end of the elastic telescopic limiting member being fixed to the side of the target protective frame facing the accommodating space, and the other end of the elastic telescopic limiting member abutting against the outer side of the battery swapping box; the target anti-slip frame is at least one of the front protective frame, rear protective frame, left protective frame, and right protective frame; The other end of the elastic telescopic limiting member can telescopically move relative to the battery swapping box in a direction perpendicular to the outer side of the battery swapping box.

3. The fixing device for the battery box of the mining truck according to claim 2, characterized in that, The target protective frame has a guide mounting groove on the side facing the accommodating space. One end of the elastic telescopic limiting member is fixed in the guide mounting groove, and the other end of the elastic telescopic limiting member extends out of the guide mounting groove and abuts against the battery swapping box.

4. The fixing device for the battery box of the mining truck according to claim 3, characterized in that, The elastic telescopic limiting component includes a compression spring and a limiting ball. The compression spring is fixed in the guide mounting groove, a portion of the limiting ball is located in the guide mounting groove, and a portion of the limiting ball is located outside the guide mounting groove. The limiting ball is connected to the end of the compression spring. After the battery swapping box is placed in the receiving space, the limiting ball abuts against the outer side of the battery swapping box.

5. The battery box fixing device for mining trucks according to any one of claims 1-4, characterized in that, The clamping component includes: a first connector, a second connector, and an elastic member. One end of the first connector is fastened to the side of the mining truck cap facing the receiving space. The second connector is slidably connected to the first connector in the third direction. Both ends of the elastic member are fastened to the ends of the first connector and the second connector away from the first connector, respectively. The second connector abuts against the top of the battery swapping box.

6. The battery box fixing device for mining trucks according to claim 5, characterized in that, The first connector has a connecting hole, a portion of the second connector is slidably installed in the connecting hole, and another portion of the second connector is located outside the connecting hole and has a limiting plate at its end; the elastic member is sleeved on the first connector and the second connector and its two ends are respectively fastened to the limiting plate and the end of the first connector that is connected to the brim of the mining truck.

7. The battery box fixing device for mining trucks according to claim 6, characterized in that, The clamping component also includes a buffer pad fixed to one side of the limiting plate.

8. The fixing device for the battery swapping box of mining trucks according to any one of claims 1-4 and 6-7, characterized in that, Both the front and rear protective frames include: a plurality of first support rods arranged in an array along the third direction, and a plurality of second support rods arranged in an array along the second direction. The first support rods extend along the second direction, and the second support rods extend along the third direction. The plurality of second support rods are fastened to the plurality of first support rods.

9. The fixing device for the battery swapping box of mining trucks according to any one of claims 1-4 and 6-7, characterized in that, The accommodating space includes two sub-accommodating spaces arranged side by side along the second direction, which are used to accommodate two battery swapping boxes respectively.

10. A mining truck, characterized in that, include: The vehicle frame and the battery box fixing device for mining trucks according to any one of claims 1-9, wherein the base bracket of the battery box fixing device for mining trucks is fixed on the vehicle frame.

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