Stringing type pure electric unmanned mining dump truck

Abstract

The invention discloses an overhead line type pure electric unmanned mining dump truck. The overhead line type pure electric unmanned mining dump truck comprises a frame, an overhead line electricity supplementing device, an overhead line control cabinet, a control cabinet, a camera module and a battery module. The battery module is detachably mounted on the frame; the stringing power supply device is electrically connected with the stringing control cabinet and the control cabinet. When the vehicle climbs for a long distance under heavy load, the control cabinet can control the stringing power supply device to be in contact with the stringing so as to receive current, and the current is conveyed to the battery module through the stringing control cabinet so as to achieve the purpose of energy supply; when the vehicle drives out of the overhead line section, the control cabinet can control the overhead line electricity supplementing device to be separated from the overhead line. The whole vehicle can supplement energy to the battery through the wiring charging device, so that the electric energy consumption of the battery module is effectively reduced, and the endurance of the whole vehicle is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of mining dump trucks, in particular to an overhead wire type pure electric unmanned mining dump truck. Background Art

[0002] With the construction of smart mines, there is a clear trend towards intelligent, green and unmanned mining vehicles, and pure electric unmanned mining vehicles are gaining more and more attention.

[0003] In the prior art, unmanned mine cars are mainly divided into three categories. The first is a mine car that is upgraded and transformed into an unmanned mine car based on a mining dump truck with a wire control system. It is generally equipped with an environmental perception system, a remote control system, a control system, etc. This type of unmanned mine car does not change the original structure of the vehicle, so it does not realize the electrification design of the whole machine, and its transportation efficiency and safety have not been fundamentally improved. It is essentially a transitional solution; the second is a hybrid two-way unmanned mine car. This type of mine car solves the problem of high fuel consumption and exhaust gas pollution caused by the engine of traditional mine cars, but it does not completely eliminate exhaust gas. At the same time, the fuel power device is retained on the whole machine, and the electrification design of the whole machine is not realized, and there are problems of unstable driving force and weak energy feedback ability; the third is a pure electric two-way unmanned mine car, which completely solves the problem of exhaust emissions, but due to the limitation of battery density, it is difficult to support the climbing requirements under the use conditions, and the whole vehicle needs to be stopped for charging after running for a period of time, which affects the production efficiency. Summary of the invention

[0004] In view of this, the present invention provides a wire-type pure electric unmanned mining dump truck, which realizes an electrified design of the whole machine, adopts pure electric drive, has a stable and reliable driving force, and has good endurance.

[0005] To achieve the above object, the present invention provides the following technical solutions: A wire-type pure electric unmanned mining dump truck comprises: a vehicle frame, a wire-type power supply device, a wire-type control cabinet, a control cabinet, a camera module and a battery module.

[0006] Among them, a deck is provided on the front side of the frame, and the overhead wire charging device, overhead wire control cabinet and control cabinet are all installed on the deck; the camera module is electrically connected to the control cabinet, and multiple camera modules are provided, and the multiple camera modules are respectively arranged around the vehicle, and the control cabinet controls the vehicle driving according to the signal fed back by the camera module; the battery module is detachably installed on the frame, and the battery module is electrically connected to the overhead wire control cabinet, and the battery module is used to power the whole vehicle; the overhead wire charging device is electrically connected to the overhead wire control cabinet and the control cabinet respectively; when the vehicle is heavily loaded and climbs a long distance, the control cabinet can control the overhead wire charging device to contact the overhead wire to receive current, and the current is transmitted toward the battery module through the overhead wire control cabinet to achieve the purpose of energy replenishment; when the vehicle drives out of the overhead wire section, the control cabinet can control the overhead wire charging device to separate from the overhead wire.

[0007] Preferably, the overhead line power compensation device includes a pantograph, a pantograph bracket, an electric cylinder support and a communication device; a support rail is provided on the pantograph bracket, and two groups of support rails are provided, and the two groups of support rails are symmetrically arranged at both ends of the pantograph bracket, the front end of the support rail has an opening, and the rear end is provided with a baffle; two electric cylinder supports are provided, and electric cylinders are installed on the two electric cylinder supports, and the two electric cylinder supports are respectively slidably assembled on the two groups of support rails through the electric cylinders, the telescopic end of the electric cylinder is fixedly connected to the baffle, and the electric cylinder is electrically connected to the control cabinet; the pantograph is installed on the pantograph bracket through the electric cylinder support; the communication device is installed on the pantograph bracket, and the communication device is electrically connected to the control cabinet, and the communication device is used to feed back the acquired overhead line base station signal to the control cabinet, so that the control cabinet controls the extension and retraction of the electric cylinder, and at the same time, controls the pantograph to raise the pantograph to contact with the overhead line or to retract the pantograph to separate from the overhead line.

[0008] Preferably, the battery module includes a first battery group and a second battery group, the first battery group is provided with two groups, and the two groups of the first battery groups are removably installed on both sides of the frame; the second battery group is provided with one group, and the second battery group is removably installed in the middle of the frame.

[0009] Preferably, a fixing bracket and two fixing bases are respectively provided on both sides of the frame, and the two fixing bases are both located above the fixing brackets and are spaced apart in parallel front and back; cylindrical hanging ears are provided on both sides of the first battery pack, and the two cylindrical hanging ears are respectively hinged and fixed on the two fixing bases; the first battery pack is bolted to the fixing bracket on one side facing the frame.

[0010] Preferably, the fixed base includes a base body and a mounting block, the mounting block is bolted to the base body, the base body is provided with a first arc-shaped groove, the mounting block is provided with a second arc-shaped groove opposite to the first arc-shaped groove, the first arc-shaped groove cooperates with the second arc-shaped groove to form a mounting hole, and the cylindrical hanging ear is assembled in the mounting hole.

[0011] Preferably, a shock absorbing block is provided between the fixing bracket and the first battery pack.

[0012] Preferably, a charging port is provided on the outer side of the two first battery packs, and any one of the charging ports can charge two groups of the first battery packs and one group of the second battery pack at the same time.

[0013] Preferably, the frame includes a first longitudinal beam and a second longitudinal beam, and two groups of guide rails are respectively arranged on the middle inner side walls of the first longitudinal beam and the second longitudinal beam, and the two groups of guide rails are arranged in parallel and spaced apart in the front-to-back direction, and the bottom of the guide rails has a lower bottom cover; two strip hanging ears are respectively arranged on both sides of the second battery pack, and the two strip hanging ears on one side of the second battery pack are respectively matched with the two groups of guide rails on one side, and the bottom of the strip hanging ears abuts against the lower bottom cover, so that the second battery pack can be suspended and installed in the middle of the frame.

[0014] Preferably, an upper cover is further provided on the top of the guide rail, and when the second battery pack is suspended and installed, the upper cover is bolted to the upper opening of the guide rail to close the upper opening of the guide rail.

[0015] Preferably, the overhead wire type pure electric unmanned mining dump truck also includes an antenna device and a resistor cabinet, the resistor cabinet is installed on the deck, the antenna device includes an antenna bracket and an antenna module, the antenna bracket is installed on the deck, and the antenna module is rotatably installed on the top of the antenna bracket.

[0016] Preferably, a shielding brim is provided at the front end of the cargo box, and the shielding brim is located above the deck, and the wiring power supply device, the antenna device, the wiring control cabinet, the resistor cabinet and the control cabinet are all within the shielding range of the shielding brim.

[0017] Preferably, the overhead wire type pure electric unmanned mining dump truck also includes an electric lifting cylinder, which is installed on the front side of the frame, and the electric lifting cylinder is transmission-connected to the bottom front side of the cargo box, and the electric lifting cylinder is electrically connected to the control cabinet, and the control cabinet is used to control the extension and retraction of the electric lifting cylinder to achieve the lifting or lowering of the cargo box.

[0018] Preferably, the chassis of the frame is provided with drive axles at the front and rear, and the two sets of drive axles are completely identical. The drive axles are connected to the frame via oil-gas suspension and triangular supports.

[0019] Preferably, a wheel hub drive motor is provided in the drive axle, the wheel hub drive motor can independently drive each set of tires, and the wheel hub drive motor is electrically connected to the control cabinet.

[0020] Preferably, the overhead wire type pure electric unmanned mining dump truck further comprises a front cover plate, wherein the front cover plate is fixedly connected to the front end of the frame, and the upper side of the front cover plate is fixedly connected to the front end surface of the deck.

[0021] Beneficial effects of the present application: Compared with the prior art, the present application discloses a wire-type pure electric unmanned mining dump truck, which can replenish the energy of the battery through the wire-type power replenishing device, so that when the whole vehicle passes through a climbing section, the battery module can continuously and stably supply electric energy to the whole vehicle, avoiding the situation where the battery module cannot continue to drive the whole vehicle due to insufficient power, causing the whole vehicle to stagnate, or causing the whole vehicle to significantly reduce its running speed; in addition, because the wire-type power replenishing device replenishes the large amount of electric energy consumed by the battery module when the whole vehicle passes through the climbing section, it not only effectively reduces the electric energy consumption of the battery module, but also significantly improves the cruising range of the whole vehicle.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a wire-type pure electric unmanned mining dump truck (first perspective) disclosed in an embodiment of the present application; Figure 2 It is a structural schematic diagram of a wire-type pure electric unmanned mining dump truck (second perspective) disclosed in an embodiment of the present application; Figure 3 It is a structural schematic diagram of a wire-type pure electric unmanned mining dump truck (third perspective) disclosed in an embodiment of the present application; Figure 4 It is a structural schematic diagram of a battery module (first perspective) of a wire-type pure electric unmanned mining dump truck disclosed in an embodiment of the present application; Figure 5 It is a partial enlarged view of the first battery pack of the overhead wire type pure electric unmanned mining dump truck disclosed in the embodiment of the present application; Figure 6 It is a structural schematic diagram of a battery module (second perspective) of a wire-type pure electric unmanned mining dump truck disclosed in an embodiment of the present application; Figure 7It is a structural schematic diagram of the overhead wire charging device (when retracted) of the overhead wire type pure electric unmanned mining dump truck disclosed in the embodiment of the present application; Figure 8 It is a structural schematic diagram of the overhead wire charging device (when moving forward) of the overhead wire type pure electric unmanned mining dump truck disclosed in the embodiment of the present application.

[0024] Reference numerals: 1. Frame; 11. Deck; 12. First longitudinal beam; 13. Second longitudinal beam; 14. Fixed bracket; 15. Fixed base; 16. Shock absorber; 17. Guide rail; 151. Base body; 152. Mounting block; 171. Upper cover; 2. Wireline power supply device; 21. Pantograph; 22. Pantograph bracket; 23. Electric cylinder support; 24. Communication device; 221. Support guide rail; 2211. Baffle; 3. Battery module; 31. First battery pack; 32. Second battery pack; 311. Cylindrical hanging ear; 312. Charging port; 321. Bar hanging ear; 4. Wire control cabinet; 5. Control cabinet; 6. Resistance cabinet; 7. Antenna device; 71. Antenna bracket; 72. Antenna module; 8. Cargo box; 81. Cover the brim of the hat; 9. Electric lifting cylinder; 10. Drive axle; 20. Hydro-pneumatic suspension; 30. Triangular support; 40. Front cover. DETAILED DESCRIPTION

[0025] The invention discloses an overhead wire type pure electric unmanned mining dump truck, the whole machine of which realizes an electrified design, adopts pure electric drive, has a stable and reliable driving force, and has good endurance.

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] Reference below Figures 1 to 8 The invention describes a wire-type pure electric unmanned mining dump truck in an embodiment of the present invention.

[0029] The embodiment of the present application discloses a wire-type pure electric unmanned mining dump truck, comprising: a vehicle frame 1, a wire-type power supply device 2, a wire-type control cabinet 4, a control cabinet 5, a camera module and a battery module 3.

[0030] Among them, a deck 11 is provided on the front side of the frame 1, and the wiring power supply device 2, the wiring control cabinet 4 and the control cabinet 5 are all installed on the deck 11; the camera module is electrically connected to the control cabinet 5, and multiple groups of camera modules are provided, and the multiple groups of camera modules are respectively arranged around the vehicle, and the control cabinet 5 controls the vehicle driving according to the signal feedback from the camera module; the coordinated cooperation between the camera module and the control cabinet 5 can realize the unmanned driving function of the whole vehicle.

[0031] The battery module 3 can be detachably mounted on the vehicle frame 1, and the battery module 3 is electrically connected to the overhead wire control cabinet 4, and the battery module 3 is used to supply power to the entire vehicle; the overhead wire power replenishment device 2 is electrically connected to the overhead wire control cabinet 4 and the control cabinet 5 respectively; when the vehicle is heavily loaded and climbing a long distance, the control cabinet 5 can control the overhead wire power replenishment device 2 to contact the overhead wire to receive current, and the current is transmitted toward the battery module 3 through the overhead wire control cabinet 4 to achieve the purpose of energy replenishment; the overhead wire control cabinet 4 can transform the current so that the voltage of the transmitted current meets the charging specifications of the battery module 3; when the vehicle drives out of the overhead wire section, the control cabinet 5 can control the overhead wire power replenishment device 2 to separate from the overhead wire.

[0032] The whole vehicle can replenish the energy of the battery through the overhead wire power replenishing device 2, so that when the whole vehicle passes through a climbing section, the battery module 3 can continuously and stably supply electric energy to the whole vehicle, avoiding the situation where the battery module 3 is unable to continue to drive the whole vehicle due to insufficient power, causing the whole vehicle to stagnate, or causing the running speed of the whole vehicle to drop significantly; in addition, because the overhead wire power replenishing device 2 replenishes the large amount of electric energy consumed by the battery module 3 when the whole vehicle passes through the climbing section, it not only effectively reduces the electric energy consumption of the battery module 3, but also significantly improves the cruising range of the whole vehicle.

[0033] In some embodiments, for example Figure 1 , Figure 6 , Figure 7 and Figure 8As shown, the overhead line power supply device 2 includes a pantograph 21, a pantograph bracket 22, an electric cylinder bracket 23 and a communication device 24; a bracket guide rail 221 is provided on the pantograph bracket 22, and two groups of the bracket guide rails 221 are provided. The two groups of bracket guide rails 221 are symmetrically arranged at both ends of the pantograph bracket 22, and the front end of the bracket guide rail 221 has an opening, and the rear end is provided with a baffle 2211; two electric cylinder brackets 23 are provided, and electric cylinders are installed on the two electric cylinder brackets 23, and the two electric cylinder brackets 23 are respectively connected by electric cylinders. It is slidably assembled on two sets of support guide rails 221, the telescopic end of the electric cylinder is fixedly connected to the baffle 2211, and the electric cylinder is electrically connected to the control cabinet 5; the pantograph 21 is installed on the pantograph bracket 22 through the electric cylinder support 23; the communication device 24 is installed on the pantograph bracket 22, and the communication device 24 is electrically connected to the control cabinet 5, and the communication device 24 is used to feed back the acquired wire-laying base station signal to the control cabinet 5, so that the control cabinet 5 controls the extension and retraction of the electric cylinder, and at the same time, controls the pantograph 21 to raise the bow to contact the wire or retract the bow to separate from the wire.

[0034] The pantograph 21 is used to contact the overhead wire to receive the current on the overhead wire, and transmit the current to the battery module 3 through the overhead wire control cabinet 4 to supplement the battery module 3 with electric energy; the electric cylinder support 23 is not only used to install the pantograph 21 on the pantograph bracket 22, but the electric cylinder on the electric cylinder support 23 can also drive the pantograph 21 to move on the support guide rail 221 on the pantograph bracket 22 to adjust the position of the pantograph 21 in the front and rear directions. In this way, the control cabinet 5 controls the coordination between the pantograph 21 and the electric cylinder so that the pantograph 21 can move to a suitable position to raise the pantograph and contact the overhead wire, thereby effectively ensuring the stable contact between the pantograph 21 and the overhead wire. If the contact between the pantograph 21 and the overhead wire is unstable, the control cabinet 5 can again use the coordinated action between the pantograph 21 and the electric cylinder to adjust the position of the pantograph 21 so that the pantograph 21 is in stable contact with the overhead wire, thereby effectively ensuring the safe driving of the vehicle.

[0035] Furthermore, if the pantograph 21 still cannot maintain stable contact with the overhead wire after adjusting its position, the control cabinet 5 will control the pantograph 21 to retract and control the electric cylinder to move so that the pantograph 21 returns to its initial position. During this period, the entire vehicle is still powered by the battery module 3, which will not affect the operation of the vehicle, thereby ensuring the vehicle's driving safety and transportation efficiency.

[0036] In some embodiments, for example Figures 1 to 6 As shown, the battery module 3 includes a first battery group 31 and a second battery group 32. The first battery group 31 is provided with two groups, the two groups of first battery groups 31 are of the same model, and the two groups of first battery groups 31 can be detachably installed on both sides of the frame 1 respectively; the second battery group 32 is provided with one group, and the second battery group 32 can be detachably installed in the middle of the frame 1.

[0037] The first battery pack 31 and the second battery pack 32 are both installed on the frame 1 in a detachable connection manner. In this way, when the battery pack is exhausted, the battery pack can be easily replaced to achieve rapid battery replacement, thereby avoiding affecting the transportation efficiency; two groups of first battery packs 31 of the same model can replace each other, thereby facilitating the recycling of the battery packs; in addition, the frame 1 as a whole adopts a pure flat structure, thereby facilitating the arrangement of the first battery pack 31 and the second battery pack 32. Since the frame 1 as a whole is a pure flat structure design and the chassis of the frame 1 is flat, the battery replacement operation can be completed by a battery replacement cart, thereby significantly improving the battery replacement efficiency and reducing the impact on transportation efficiency.

[0038] In this embodiment, the first battery pack 31 is hinged to the fixed base 15 on the frame 1 through the cylindrical hanging ear 311, and is bolted to the fixed bracket 14 on the frame 1, for example Figure 4 , Figure 5 and Figure 6 As shown, a fixing bracket 14 and two fixing bases 15 are respectively provided on both sides of the vehicle frame 1, and the two fixing bases 15 are both located above the fixing bracket 14 and are arranged parallel and spaced apart from each other; cylindrical hanging ears 311 are provided on both sides of the first battery pack 31, and the two cylindrical hanging ears 311 are respectively hinged and fixed on the two fixing bases 15; the first battery pack 31 is bolted to the fixing bracket 14 on the side facing the vehicle frame 1. Such a fixing method can ensure the installation stability of the first battery pack 31 while facilitating the disassembly and assembly of the first battery pack 31 to improve the battery replacement efficiency.

[0039] Furthermore, the fixed base 15 includes a base body 151 and a mounting block 152, the mounting block 152 is bolted to the base body 151, the base body 151 is provided with a first arc-shaped groove, the mounting block 152 is provided with a second arc-shaped groove opposite to the first arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove cooperate to form a mounting hole, and the cylindrical hanging ear 311 is assembled in the mounting hole. Such a design, thanks to the convenience of disassembly and assembly of the mounting block 152, makes the disassembly and assembly of the first battery pack 31 more convenient, which can further improve the efficiency of battery replacement.

[0040] Furthermore, for example Figure 4 and Figure 5 As shown, a shock-absorbing block 16 is arranged between the fixed bracket 14 and the first battery pack 31; since the working surface of the mining dump truck is often uneven, which causes the whole vehicle to move bumpily, therefore, adding a shock-absorbing block 16 between the fixed bracket 14 and the first battery pack 31 can avoid the first battery pack 31 from colliding with the fixed bracket 14, and reduce the impact of the impact caused by the shaking of the vehicle on the first battery pack 31, thereby protecting the safety of the first battery pack 31.

[0041] In this embodiment, for example Figure 4 As shown, charging ports 312 are provided on the outer sides of the two first battery packs 31 , and any charging port 312 can charge two groups of first battery packs 31 and one group of second battery packs 32 at the same time, which can significantly improve the charging efficiency.

[0042] In this embodiment, the vehicle frame 1 includes a first longitudinal beam 12 and a second longitudinal beam 13. The inner side walls of the first longitudinal beam 12 and the second longitudinal beam 13 are both provided with a guide rail 17. The second battery pack 32 is suspended and installed in the middle of the vehicle frame 1 through the guide rail 17. Figure 6 As shown, two sets of guide rails 17 are respectively arranged on the middle inner side walls of the first longitudinal beam 12 and the second longitudinal beam 13, and the two sets of guide rails 17 are arranged parallel and spaced apart in the front-rear direction, and the bottom of the guide rails 17 has a bottom cover; two bar-shaped hanging ears 321 are respectively arranged on both sides of the second battery pack 32, and the two bar-shaped hanging ears 321 on one side of the second battery pack 32 are respectively matched with the two sets of guide rails 17 on one side, and the bottom of the bar-shaped hanging ears 321 abuts against the bottom cover, so that the second battery pack 32 can be suspended and installed in the middle of the frame 1. Such an installation design can ensure the installation stability of the second battery pack 32 on the one hand, and make the disassembly and assembly of the second battery pack 32 more convenient on the other hand.

[0043] Furthermore, an upper cover 171 can be provided on the top of the guide rail 17. When the second battery pack 32 is suspended and installed, the upper cover 171 is bolted to the upper opening of the guide rail 17 to close the upper opening of the guide rail 17. In this way, when the vehicle is driving bumpy, the upper cover 171 can limit the top of the second battery pack 32 to prevent the second battery pack 32 from jumping too much, avoid the second battery pack 32 from colliding with other components in the vehicle, protect the safety of the second battery pack 32, and improve the safety performance of the entire vehicle.

[0044] Furthermore, a shock-absorbing block 16 can be disposed between the lower bottom cover of the guide rail 17 and the bottom of the strip-shaped hanging ear 321 to reduce the impact of vibration on the second battery pack 32 .

[0045] In some embodiments, for example Figure 1 As shown, the overhead wire type pure electric unmanned mining dump truck also includes an antenna device 7 and a resistor cabinet 6. The resistor cabinet 6 is installed on the deck 11. The antenna device 7 includes an antenna bracket 71 and an antenna module 72. The antenna bracket 71 is installed on the deck 11, and the antenna module 72 is rotatably installed on the top of the antenna bracket 71.

[0046] The antenna device 7 can be used as a signal bridging device to receive signals from the overhead base station and transmit the signals to the communication device 24; the antenna device 7 is also used to receive external signals, such as signals from adjacent vehicles, for maintaining vehicle distance, positioning signals of the vehicle body itself, etc.; the rotatable design of the antenna device 7 enables the antenna module 72 on the antenna device 7 to automatically rotate when the signal strength is weak to ensure the strength of the received signal; the resistor cabinet 6 is mainly used to convert the electrical energy generated by the vehicle during braking into heat energy, and consume the heat energy to avoid damage to the vehicle and the surrounding environment, thereby ensuring the safety and stability of the vehicle.

[0047] In some embodiments, for example Figure 1 As shown, a shielding brim 81 is provided at the front end of the cargo box 8, and the shielding brim 81 is located above the deck 11. The wiring and power supply device 2, the antenna device 7, the wiring control cabinet 4, the resistor cabinet 6 and the control cabinet 5 are all within the shielding range of the shielding brim 81. The shielding brim 81 can block the ore in the cargo box 8 to prevent the flying ore from damaging the components on the deck 11, so as to protect the safety of the components on the deck 11.

[0048] In this embodiment, for example Figure 1 As shown, when the pantograph 21 in the overhead line power supply device 2 is not raised, or after being retracted, and when the antenna device 7 is not rotated or activated, it is retracted in the shielding brim 81 to prevent damage.

[0049] In some embodiments, for example Figure 1 As shown, the overhead wire type pure electric unmanned mining dump truck also includes an electric lifting cylinder 9, which is installed on the front side of the frame 1, and the electric lifting cylinder 9 is transmission-connected to the bottom front side of the cargo box 8, and the electric lifting cylinder 9 is electrically connected to the control cabinet 5, and the control cabinet 5 is used to control the extension and retraction of the electric lifting cylinder 9 to realize the lifting or lowering of the cargo box 8.

[0050] Compared with the traditional hydraulic lifting device, the mining dump truck in this embodiment uses an electric lifting cylinder 9 to drive the lifting or lowering of the cargo box 8, which not only has more precise control but also does not require frequent replacement and maintenance, thereby significantly reducing maintenance costs.

[0051] In some embodiments, for example Figure 6 As shown, the chassis of the frame 1 is provided with drive axles 10 at the front and rear, and the two sets of drive axles 10 are exactly the same. The drive axles 10 are connected to the frame 1 through the oil-gas suspension 20 and the triangular support 30. The overall structure is simple and reliable, and the maintainability is high.

[0052] In this embodiment, a wheel hub drive motor is provided in the drive axle 10, and there are four wheel hub drive motors. The wheel hub drive motor can independently drive each set of tires. The wheel hub drive motor is electrically connected to the control cabinet 5. The control cabinet 5 can control the speed and direction of the wheel hub drive motor, and adjust the four wheel hub drive motors through an algorithm to achieve differential steering. In this way, the turning radius of the whole vehicle is smaller, which is conducive to saving road width.

[0053] In some embodiments, for example Figure 1 As shown, the overhead wire type pure electric unmanned mining dump truck further includes a front cover plate 40, which is fixedly connected to the front end of the frame 1, and the upper side of the front cover plate 40 is fixedly connected to the front end surface of the deck 11. The front cover plate 40 is provided to protect the front end of the vehicle on the one hand, and to improve the aesthetics of the exterior of the vehicle on the other hand.

[0054] Other structures and operations of the overhead wire type pure electric unmanned mining dump truck according to the embodiment of the present invention are known to ordinary technicians in the field and will not be described in detail here.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0056] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wire-type pure electric unmanned mining dump truck, characterized in that: include: Frame, wiring charging device, wiring control cabinet, control cabinet, camera module and battery module; A deck is provided at the front side of the vehicle frame, and the overhead wire charging device, the overhead wire control cabinet and the control cabinet are all installed on the deck; the camera module is electrically connected to the control cabinet, and the camera module is provided with multiple groups, and the multiple groups of camera modules are respectively arranged around the vehicle; The battery module is detachably mounted on the vehicle frame, the battery module is electrically connected to the wiring control cabinet, and the battery module is used to supply power to the entire vehicle; The overhead line power supplement device is electrically connected to the overhead line control cabinet and the control cabinet respectively.

2. The wire-type pure electric unmanned mining dump truck according to claim 1 is characterized in that: The control cabinet controls the vehicle driving according to the signal fed back by the camera module; when the vehicle is heavily loaded and climbing a long distance, the control cabinet can control the overhead wire charging device to contact the overhead wire to receive current, and the current is transmitted toward the battery module through the overhead wire control cabinet to achieve the purpose of energy replenishment; When the vehicle drives out of the overhead line section, the control cabinet can control the overhead line power supplement device to separate from the overhead line.

3. The wire-type pure electric unmanned mining dump truck according to claim 1 is characterized in that: The overhead line power supply device comprises a pantograph, a pantograph bracket, an electric cylinder support and a communication device; The pantograph bracket is provided with a support rail, and the support rail is provided with two groups, and the two groups of support rails are symmetrically arranged at both ends of the pantograph bracket, and the front end of the support rail has an opening, and the rear end is provided with a baffle; The electric cylinder supports are provided with two seats, and the electric cylinders are installed on the two electric cylinder supports. The two electric cylinder supports are respectively slidably assembled on the two groups of support guide rails through the electric cylinders. The telescopic ends of the electric cylinders are fixedly connected to the baffles, and the electric cylinders are electrically connected to the control cabinet; the pantograph is installed on the pantograph bracket through the electric cylinder supports; The communication device is installed on the pantograph bracket and is electrically connected to the control cabinet. The communication device is used to feed back the acquired overhead line base station signal to the control cabinet so that the control cabinet controls the extension and retraction of the electric cylinder and, at the same time, controls the pantograph to raise the pantograph to contact the overhead line or retract the pantograph to separate from the overhead line.

4. The overhead wire type pure electric unmanned mining dump truck according to claim 1, characterized in that: The battery module includes a first battery group and a second battery group. The first battery group is provided with two groups, and the two groups of the first battery groups are detachably installed on both sides of the frame; the second battery group is provided with one group, and the second battery group is detachably installed in the middle of the frame.

5. The overhead wire type pure electric unmanned mining dump truck according to claim 4 is characterized in that: A fixing bracket and two fixing bases are respectively arranged on both sides of the frame, and the two fixing bases are both located above the fixing brackets and are arranged parallel and spaced apart from each other in the front and rear directions; Cylindrical hanging ears are arranged on both sides of the first battery pack, and the two cylindrical hanging ears are respectively hinged and fixed on the two fixed bases; the first battery pack is bolted to the fixed bracket on one side facing the frame.

6. The overhead wire type pure electric unmanned mining dump truck according to claim 5, characterized in that: The fixed base includes a base body and a mounting block, the mounting block is bolted to the base body, the base body is provided with a first arc-shaped groove, the mounting block is provided with a second arc-shaped groove opposite to the first arc-shaped groove, the first arc-shaped groove cooperates with the second arc-shaped groove to form a mounting hole, and the cylindrical hanging ear is assembled in the mounting hole.

7. The overhead wire type pure electric unmanned mining dump truck according to claim 5, characterized in that: A shock absorbing block is arranged between the fixing bracket and the first battery pack.

8. The overhead wire type pure electric unmanned mining dump truck according to claim 4, characterized in that: Charging ports are provided on the outer sides of the two first battery packs, and any one of the charging ports can charge two groups of the first battery packs and one group of the second battery pack at the same time.

9. The overhead wire type pure electric unmanned mining dump truck according to claim 4, characterized in that: The frame comprises a first longitudinal beam and a second longitudinal beam, wherein two sets of guide rails are respectively arranged on the inner side walls of the middle parts of the first longitudinal beam and the second longitudinal beam, and the two sets of guide rails are arranged in parallel and spaced apart in the front-rear direction, and the bottom of the guide rails has a lower bottom cover; Two bar-shaped hanging ears are respectively arranged on both sides of the second battery pack, and the two bar-shaped hanging ears on one side of the second battery pack respectively cooperate with the two sets of guide rails on one side, and the bottom of the bar-shaped hanging ears abuts against the lower bottom cover, so that the second battery pack can be suspended and installed in the middle of the frame.

10. The overhead wire type pure electric unmanned mining dump truck according to claim 9, characterized in that: An upper cover is also provided on the top of the guide rail. When the second battery pack is suspended and installed, the upper cover is bolted to the upper opening of the guide rail to close the upper opening of the guide rail.

11. The overhead wire type pure electric unmanned mining dump truck according to claim 1, characterized in that: It also includes an antenna device and a resistor cabinet, wherein the resistor cabinet is installed on the deck, and the antenna device includes an antenna bracket and an antenna module, wherein the antenna bracket is mounted on the deck, and the antenna module is rotatably installed on the top of the antenna bracket.

12. The wire-type pure electric unmanned mining dump truck according to claim 11, characterized in that: A shielding brim is arranged at the front end of the cargo box, and the shielding brim is located above the deck. The wiring power supply device, the antenna device, the wiring control cabinet, the resistance cabinet and the control cabinet are all within the shielding range of the shielding brim.

13. The wire-type pure electric unmanned mining dump truck according to claim 1, characterized in that: It also includes an electric lifting cylinder, which is installed on the front side of the frame, the electric lifting cylinder is transmission-connected to the bottom front side of the cargo box, the electric lifting cylinder is electrically connected to the control cabinet, and the control cabinet is used to control the extension and retraction of the electric lifting cylinder to achieve the lifting or lowering of the cargo box.

14. The overhead wire type pure electric unmanned mining dump truck according to claim 1, characterized in that: The chassis of the frame is provided with driving axles at the front and rear, and the two sets of driving axles are completely identical. The driving axles are connected to the frame through oil-gas suspension and triangular supports.

15. The overhead wire type pure electric unmanned mining dump truck according to claim 14, characterized in that: A wheel hub drive motor is arranged in the drive axle, and the wheel hub drive motor can independently drive each set of tires. The wheel hub drive motor is electrically connected to the control cabinet.

16. The wire-type pure electric unmanned mining dump truck according to claim 1, characterized in that: It also includes a front cover plate, which is fixedly connected to the front end of the frame, and the upper side of the front cover plate is fixedly connected to the front end surface of the deck.

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