An explosion-proof remote-controlled electric mining car

Abstract

The present application relates to the technical field of underground mine transportation equipment, and particularly relates to an explosion-proof remote control electric mine car. The technical scheme comprises a bearing mechanism, a driving mechanism, a load bearing mechanism and an intelligent detection mechanism, the bearing mechanism is provided with a bearing main frame, the driving mechanism is fixedly installed at the bottom of the bearing main frame, the load bearing mechanism is hingedly installed at the top of the bearing main frame, and the intelligent detection mechanism is fixedly installed at the outer side of the bearing main frame. The whole machine adopts an explosion-proof sealing integrated structure, is suitable for the underground working condition of coal mines prone to combustion and explosion, sets a remote control, a disconnection, a manual triple redundant braking structure, cooperates with a multi-dimensional hardware protection mechanism of obstacle detection, gas linkage power-off, Beidou trajectory early warning and battery temperature and pressure monitoring, forms a closed loop safety system, does not need software to participate in control, effectively solves the problems of single protection of traditional mine cars, remote control disconnection and loss of control, battery overheating and gas operation risk, and comprehensively improves the underground transfer safety and equipment stability.

Description

Technical Field

[0001] This invention relates to the field of underground mining transportation equipment technology, and in particular to an explosion-proof remote-controlled electric mining car. Background Technology

[0002] Material transfer in underground mines is a core process in mining operations. Existing underground material transfer equipment is divided into two categories: rail-driven mine cars and simple electric remote-controlled mine cars. Traditional rail-driven mine cars have no independent driving power and rely on external winches for traction. They can only travel along fixed tracks and cannot be adapted to irregular tunnels. Although conventional electric remote-controlled mine cars on the market have eliminated track restrictions, they still have many core defects.

[0003] First, the remote control and safety protection system is inadequate. Existing equipment mostly uses single-band handheld remote control, which is easily disrupted by underground dust and tunnel walls. There is no emergency braking structure for disconnections; only basic start / stop and travel buttons are provided. Obstacle detection, underground gas linkage protection, and load-adaptive control structures are lacking. Remote control failure, personnel approaching the tunnel, or excessive gas levels can easily lead to runaway, collisions, and explosions. Second, the battery system's safety and continuous operation capability are insufficient. Existing mine car batteries are mostly fixed, built-in structures, requiring long charging times and unable to be quickly replaced, making it difficult to meet the demands of 24-hour continuous high-intensity underground transport. The battery compartment is simply sealed, lacking independent shock absorption and layered heat dissipation structures. In humid, dusty, and high-temperature underground conditions, the battery is prone to overheating and short circuits, failing to meet the MA explosion-proof safety standards for mining. Third, the overall machine's travel and unloading structures have poor compatibility. Traditional mining trucks often use a single hydraulic push rod for unloading, which results in eccentric force and severe swaying of the hopper under heavy load. The walking mechanism typically uses direct motor drive or simple chain transmission without a closed explosion-proof gear reduction structure, leading to insufficient torque and easy dust ingress and failure of transmission components. They only have simple front-wheel steering without a four-wheel independent hydraulic steering mechanism, resulting in extremely low maneuverability in narrow bends and at the tunnel face. Fourth, existing improved patents only optimize the remote control module or battery structure individually, failing to form an integrated structure that combines explosion-proof power, quick battery swapping, multiple redundant braking, multi-dimensional environmental perception, four-wheel hydraulic steering, and adaptive load control. This fails to fundamentally address the comprehensive pain points of safety, endurance, control, and adaptability to working conditions in underground transport equipment, resulting in equipment shortcomings in the intelligent upgrading of mines. Therefore, this application proposes an explosion-proof remote-controlled electric mining truck. Summary of the Invention

[0004] The purpose of this invention is to address the problems in the prior art of existing underground remote-controlled electric mining trucks, such as lack of safety protection, short battery life and inability to be quickly replaced, poor transmission explosion-proof performance, insufficient stability of steering and unloading structures, and low adaptability to complex underground working conditions, and to propose an explosion-proof remote-controlled electric mining truck.

[0005] The technical solution of the present invention: an explosion-proof remote-controlled electric mining car, comprising a bearing mechanism, a drive mechanism, a material-carrying mechanism and an intelligent detection mechanism, wherein the bearing mechanism is provided with a main bearing frame, the drive mechanism is fixedly installed at the bottom of the main bearing frame, the material-carrying mechanism is hingedly installed at the top of the main bearing frame, and the intelligent detection mechanism is fixedly installed on the outside of the main bearing frame; A power supply assembly is fixedly installed on the inner bottom of the main frame, and an explosion-proof battery pack is installed inside the power supply assembly. The drive mechanism is provided with a chassis fixing component, which is fixedly installed on the bottom of the main frame. An electronic control component is installed on the chassis fixing component, and a drive component is installed on the chassis fixing component. Steering rolling components are rotatably mounted on both sides of the chassis fixing component, and the drive component and the steering rolling components are in transmission cooperation. The electrical control components are electrically connected to the power supply components, drive components, steering and rolling components, material loading mechanism, and intelligent detection mechanism, respectively.

[0006] Optionally, the electronic control assembly includes an electronic control box, which contains electronic control components. These components are electrically connected to a remote control braking device, a circuit disconnection braking device, and a manual braking device. These components are installed at the connection points between the steering rolling assembly and the drive assembly, respectively, to achieve remote control braking, circuit disconnection braking, and manual braking. The explosion-proof battery pack integrates a battery temperature sensor and a battery voltage sensor, both electrically connected to the electronic control components, for real-time monitoring of the explosion-proof battery pack's operating status.

[0007] Optionally, the power supply assembly includes a battery explosion-proof installation compartment. A cover plate is fastened to the top of the battery explosion-proof installation compartment. Quick-release components are symmetrically installed on the top of the battery explosion-proof installation compartment. Each quick-release component has two limiting rings. The two limiting rings are fixedly installed on both sides of the top of the battery explosion-proof installation compartment. A guide rod is fixed to the top of the two limiting rings on the opposite side. A sleeve block is slidably fitted on the outer side of the two guide rods that are close to each other. A spring is fitted on the outer side of the two guide rods that are far apart from each other. One end of the spring is connected to the guide rod, and the other end of the spring is connected to the sleeve block. A locking block that slides through the limiting ring is fixedly installed at the bottom of the sleeve block. The locking block is fitted against the top surface of the cover plate.

[0008] Optionally, an automatic ejection assembly is installed at the four corners of the battery explosion-proof installation compartment. The automatic ejection assembly is provided with a sleeve. The sleeve is fixedly installed at the four corners of the battery explosion-proof installation compartment. A second spring is fixedly installed at the bottom of the sleeve. A push rod is fixedly connected to the top of the second spring. The push rod is slidably assembled inside the sleeve. The top of the push rod abuts against the bottom surface of the cover plate.

[0009] Optionally, a mounting base plate is fixedly installed at the bottom of the battery explosion-proof installation compartment, a cooling fan is fixedly installed on the lower side of the mounting base plate, multiple rubber mounting bases are fixedly installed at the bottom inside the battery explosion-proof installation compartment, multiple mounting mesh plates are fixedly installed on the top of the multiple rubber mounting bases, and an explosion-proof battery pack is placed on the upper side of the multiple mounting mesh plates.

[0010] Optionally, the chassis fixing assembly includes a mounting chassis, a rear drive load-bearing mounting bracket welded and fixed to one side of the top surface of the mounting chassis, and a front drive load-bearing mounting bracket welded and fixed to the other side of the top surface of the mounting chassis. Both the rear drive load-bearing mounting bracket and the front drive load-bearing mounting bracket are fixed to the bottom bolts of the main frame, and a crash plate is threaded to the bottom outer side of the front drive load-bearing mounting bracket.

[0011] Optionally, front wheels are rotatably mounted on both ends of the front drive load-bearing mounting frame, and the front wheels are rotatably connected to the front drive load-bearing mounting frame via ball joints. The rear drive load-bearing mounting frame is rotatably connected to the rear drive load-bearing mounting frame via ball joints. Hydraulic steering rods are rotatably mounted on both ends of the top of the front drive load-bearing mounting frame and the rear drive load-bearing mounting frame. The output ends of the two hydraulic steering rods on the same side are respectively hinged to the two front wheels and the two rear wheels on the same side. The hydraulic steering rods are electrically connected to the electronic control components.

[0012] Optionally, a hopper is hinged to the top of the main support frame, and hydraulic jacks are symmetrically arranged on the inner side of the main support frame. One end of each hydraulic jack is hinged to the other side inside the main support frame, and the output end of each hydraulic jack is hinged to the bottom of the hopper. The hydraulic jacks are electrically connected to the electronic control components. Optionally, a control panel is fixedly installed at the front end of the main support frame. The control panel is equipped with a downhole hazardous gas sensor and a Beidou positioning sensor unit. Ultrasonic obstacle sensors are installed around the main support frame. A load pressure sensor that cooperates with the bottom of the hopper is installed on the top of the main support frame. The downhole hazardous gas sensor, ultrasonic obstacle sensor, Beidou positioning sensor unit, and load pressure sensor are all electrically connected to the electronic control components.

[0013] Optionally, an explosion-proof drive motor and a gearbox are fixedly mounted on the mounting chassis. The output end of the explosion-proof drive motor is connected to the gearbox, and the output end of the gearbox is equipped with a bevel gear transmission pair, which is connected to the rear wheel transmission.

[0014] Compared with the prior art, this application includes at least one of the following beneficial technical effects: This invention adopts an explosion-proof and sealed integrated structure, which is suitable for the flammable and explosive underground working conditions of coal mines. By setting up a triple redundant braking structure of remote control, disconnection and manual operation, combined with a multi-dimensional hardware protection mechanism of obstacle detection, gas-linked power cut-off, Beidou trajectory early warning and battery temperature and pressure monitoring, a closed-loop safety system is formed. No software is required for control, which effectively solves the problems of single protection of traditional mine cars, loss of remote control and control, battery overheating and gas operation risks, and comprehensively improves the safety and stability of underground transportation.

[0015] This invention features a quick-release assembly and an automatic ejection assembly, enabling tool-free, single-person, rapid battery swapping, avoiding the drawbacks of traditional equipment that requires complete machine shutdown for charging and disrupts operations. The battery compartment adopts a fully enclosed explosion-proof structure, combined with convection cooling ducts, an independent cooling fan, and a rubber shock-absorbing base. Real-time monitoring and control of battery temperature and pressure effectively improves battery heat dissipation, shock absorption, and explosion-proof performance, extending battery life and meeting the needs of uninterrupted continuous transport operations in mines.

[0016] This invention employs a four-wheel independent hydraulic synchronous steering structure with a small turning radius, enabling flexible lane changes and U-turns in narrow underground tunnels and tunneling faces, overcoming the limitations of traditional tracks and the poor maneuverability of single-front-wheel steering. Combined with a closed-loop reduction transmission structure consisting of an explosion-proof motor, gearbox, and bevel gear transmission pair, it offers strong heavy-duty climbing ability, dust and corrosion resistance, and significantly improves transmission stability and equipment durability under harsh dust conditions.

[0017] This invention employs a dual hydraulic jack synchronous lifting and unloading structure, ensuring uniform force distribution and effectively preventing swaying and tipping during heavy-load unloading. Utilizing a multi-dimensional sensor hardware linkage mechanism, it can adaptively adjust power and hydraulic output according to load and operating conditions, reducing energy consumption and increasing range. The entire machine adopts a modular integrated design, with each module independently assembled and disassembled for convenient maintenance. Combined with a quick-change battery structure, it effectively reduces investment and maintenance costs for mining equipment, aligning with the needs of intelligent and unmanned mining development, and possessing high industrial application value. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention for unloading. Figure 2 Front side view of the overall structure of the present invention Figure 1 ; Figure 3 This is a front side view of the overall structure of the present invention. Figure 2 ; Figure 4 This is a three-dimensional sectional view of the power supply component of the present invention. Figure 5 This is a three-dimensional structural disassembly diagram of the driving mechanism of the present invention; Figure 6 for Figure 4 Enlarged view of the structure at point A in the image; Figure 7 for Figure 4 Enlarged view of the structure at point B in the image.

[0019] Reference numerals: 1. Load-bearing mechanism; 101. Load-bearing main frame; 102. Power supply assembly; 103. Explosion-proof battery pack; 104. Quick-release assembly; 105. Automatic ejection assembly; 1021. Cover plate; 1022. Battery explosion-proof installation compartment; 1023. Mounting base plate; 1024. Cooling fan; 1025. Rubber mounting base; 1026. Mounting mesh plate; 1041. Locking block; 1042. Limiting ring; 1043. Spring 1; 1044. Sleeve block; 1045. Guide rod; 1051. Sleeve; 1052. Spring II; 1053. Push rod; 2. Drive mechanism; 201. Chassis mounting components; 202. Electronic control components; 203. Steering and rolling components; 204. Drive components; 2011. Chassis mounting; 2012. Rear drive load-bearing mounting bracket; 2013. Anti-collision guard plate; 2014. Front drive load-bearing mounting bracket; 2021, Electrical control box; 2022, Electrical control components; 2031, Rear wheel; 2032, Front wheel; 2033, Hydraulic steering rod; 2041. Explosion-proof drive motor; 2042. Gearbox; 2043. Bevel gear transmission pair; 3. Material loading mechanism; 301. Material hopper; 302. Hydraulic jack; 4. Intelligent detection mechanism; 401. Control panel; 402. Downhole hazardous gas sensor; 403. Ultrasonic obstacle sensor; 404. Beidou positioning sensing unit; 405. Load pressure sensor. Detailed Implementation

[0020] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other. Example

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention proposes an explosion-proof remote-controlled electric mining car, including a carrying mechanism 1, which is the main supporting frame of the explosion-proof remote-controlled electric mining car, and its core component is the main supporting frame 101. The main supporting frame 101 adopts a narrow and compact integrated structure, which can adapt to the passage size requirements of narrow underground tunnels. The power supply component 102 is fixedly installed in the center of the bottom inner side of the main supporting frame 101, providing dedicated installation space and protective support for the explosion-proof power supply structure of the whole machine; the bottom of the main supporting frame 101 is fixedly connected to the chassis fixing component 201, realizing the integrated mounting of the walking drive mechanism; the top surface of the main supporting frame 101 is provided with a hinged support for rotating and assembling the loading mechanism 3; the outer side and front end of the main supporting frame 101 are fixedly arranged with intelligent detection mechanisms 4 to realize the full-domain signal acquisition of the machine's operating status, tunnel environment, and load parameters.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7As shown, the power supply component 102 is the explosion-proof power supply support structure for the entire machine, mainly composed of a battery explosion-proof installation chamber 1022, a cover plate 1021, a quick-release assembly 104, an automatic ejection assembly 105, a heat dissipation assembly structure, and an explosion-proof battery pack 103. The battery explosion-proof installation chamber 1022 is rigidly fixed to the bottom center of the main support frame 101 by a fixing bracket, forming a sealed explosion-proof cavity, which can effectively isolate flammable and explosive dust and gas in the mine from contact with the battery electrical structure, meeting the explosion-proof safety requirements for mining. The bottom of the battery explosion-proof installation chamber 1022 is fixed to the mounting base plate 1023 by bolts. The mounting base plate 1023 has multiple sets of air inlet holes, and a cooling fan 1024 is fixedly mounted on the lower side of the mounting base plate 1023. Multiple sets of rubber mounting bases 1025 are welded and fixed to the top surface of the mounting base plate 1023, and a mesh plate 1026 is fixedly mounted on the top of the rubber mounting bases 1025. The explosion-proof battery pack 103 is placed on top of the mounting mesh plate 1026. The rubber mounting base 1025 can buffer the impact of bumps and vibrations in the well on the battery structure. The hollow structure of the mounting mesh plate 1026 can ensure smooth airflow at the bottom and not obstruct the heat dissipation channel. The top of the battery explosion-proof installation compartment 1022 is fastened with the cover plate 1021 to form a sealed cavity. The cover plate 1021 has a heat dissipation hole one, and the battery explosion-proof installation compartment 1022 has heat dissipation holes two on both sides. Together with the bottom cooling fan 1024, it forms a vertically connected convection heat dissipation channel, which can continuously remove the battery's operating heat. The inner top of the battery explosion-proof installation compartment 1022 is provided with protrusions at both ends to support and limit the cover plate 1021, preventing the cover plate from collapsing under pressure and squeezing the internal explosion-proof battery pack 103.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 As shown, two sets of quick-release components 104 are symmetrically assembled on the top of the battery explosion-proof installation compartment 1022. Each quick-release component 104 includes a limiting ring 1042, a guide rod 1045, a spring 1043, a sleeve block 1044, and a locking block 1041. The limiting ring 1042 is fixed to the top surface of the battery explosion-proof installation compartment 1022. The guide rod 1045 is vertically fixed to the limiting ring 1042. The sleeve block 1044 is slidably sleeved on the outside of the guide rod 1045. The spring 1043 is sleeved on the outside of the guide rod 1045 and its two ends are respectively connected to the limiting ring 1042 and the sleeve block 1044. The locking block 1041 is fixed to the top of the sleeve block 1044. The locking block 1041 fits against the top surface of the cover plate 1021, and a guide slope is provided on the inner side of the locking block 1041, which slides in cooperation with the guide slope groove at the bottom of the cover plate 1021. Under normal conditions, the spring 1043 rebounds and drives the sleeve block 1044 to retract inward, causing the locking block 1041 to press against the limit cover plate 1021, thus achieving tool-free sealing and locking.

[0024] like Figure 1 , Figure 2, Figure 3 , Figure 4 , Figure 6 , Figure 7 As shown, an automatic ejection assembly 105 is fixedly installed at the four corners inside the battery explosion-proof installation compartment 1022. The automatic ejection assembly 105 includes a sleeve 1051, a second spring 1052, and a push rod 1053. The sleeve 1051 is fixed at the four corners of the bottom inside the compartment. The second spring 1052 is fixed at the bottom inside the sleeve 1051. The top of the second spring 1052 is connected to the push rod 1053. The push rod 1053 slides out of the sleeve 1051 and abuts against the bottom surface of the cover plate 1021. When the quick-release assembly 104 releases the limit of the cover plate 1021, the second spring 1052 releases its elastic force to push the push rod 1053 upward to lift the cover plate 1021, realizing the automatic ejection of the cover plate, which facilitates quick disassembly and replacement of the explosion-proof battery pack 103 by a single person.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the explosion-proof battery pack 103 serves as the power source for the entire device. It integrates a battery temperature sensor and a battery voltage sensor, both of which are electrically connected to the electronic control component 2022. These sensors can collect the battery's operating temperature and output voltage signals in real time and feed them back to the electronic control component 2022. When the battery experiences overheating, overvoltage, or undervoltage abnormalities, the electronic control component 2022 can control the entire device to cut off power for protection and activate the cooling fan 1024 to enhance heat dissipation, thus preventing safety hazards such as battery short circuits and fires.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the drive mechanism 2 is fixedly installed at the bottom of the main frame 101, directly below the power supply component 102. It mainly consists of a chassis fixing component 201, an electronic control component 202, a steering and rolling component 203, and a drive component 204, working together to complete the entire process control of the machine's walking drive, hydraulic steering, and safety braking. The base of the chassis fixing component 201 is the mounting chassis 2011. The rear drive bearing mounting frame 2012 and the front drive bearing mounting frame 2014 are welded to the top surface of the mounting chassis 2011. Both sets of bearing mounting frames are fixedly connected to the bottom of the main frame 101 by bolts, realizing the rigid integration and synchronous force bearing of the walking mechanism and the main frame. The outer bottom of the front drive bearing mounting frame 2014 is threaded with an anti-collision guard plate 2013, which can effectively block protruding stones and debris in the roadway from impacting the front wheels and steering structure, realizing anti-collision protection for the walking components.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the electrical control assembly 202 includes an electrical control box 2021, which is fixed to one side of the top of the mounting chassis 2011. The electrical control box 2021 adopts a mining explosion-proof shell structure, and its interior is equipped with electrical control components 2022. The electrical control components 2022 are the core control hub of the entire machine, and are electrically connected to the explosion-proof battery pack 103, drive assembly 204, hydraulic steering rod 2033, hydraulic jack 302, and various sensing components. The electrical control components 2022 are electrically connected to independent remote control braking components, disconnection braking components, and manual braking components. The three sets of braking components are uniformly assembled at the connection position between the steering rolling assembly 203 and the drive assembly 204, forming a triple redundant braking system. Remote control braking can be triggered by remote control commands. When the remote control signal is lost, disconnection braking is automatically activated. In case of equipment electrical control failure, mechanical braking can be achieved through the manual braking component. The multiple braking structures are mutually redundant, greatly improving the safety of underground operations.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the steering rolling assembly 203 includes a front wheel 2032 and a rear wheel 2031. The rear wheel 2031 is rotatably mounted to both ends of the rear drive support mounting frame 2012 via spherical hinge seats, and the front wheel 2032 is rotatably mounted to both ends of the front drive support mounting frame 2014 via spherical hinge seats. Hydraulic steering rods 2033 are rotatably mounted to both ends of the front drive support mounting frame 2014 and the rear drive support mounting frame 2012. The output ends of the hydraulic steering rods 2033 are respectively hinged to the corresponding positions of the front wheel 2032 and the rear wheel 2031, and the hydraulic steering rods 2033 are electrically connected to the electronic control component 2022. The electronic control component 2022 outputs control signals to drive the four hydraulic steering rods 2033 to extend and retract synchronously, causing the four wheels to deflect synchronously. Compared with the traditional single front wheel steering structure, this significantly reduces the turning radius and can adapt to flexible U-turns and lane changes in narrow underground tunnels and tunneling faces.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the drive assembly 204 includes an explosion-proof drive motor 2041, a gearbox 2042, and a bevel gear transmission pair 2043. The explosion-proof drive motor 2041 is fixed to the top of the mounting chassis 2011. The output end of the explosion-proof drive motor 2041 is connected to the gearbox 2042. The output end of the gearbox 2042 is equipped with the bevel gear transmission pair 2043, which is fixedly sleeved with the two rear wheels 2031. The explosion-proof drive motor 2041 has an explosion-proof structure, and there is no electrical spark leakage during operation, making it suitable for explosion-proof working conditions underground. The gearbox 2042 achieves speed reduction and torque increase, improving the heavy-load climbing ability. The bevel gear transmission pair 2043 then achieves torque reversal and synchronous transmission. The enclosed gear transmission structure can prevent dust from entering the meshing position, effectively extending the service life of the transmission components.

[0030] like Figure 1 , Figure 2 , Figure 3 As shown, the material loading mechanism 3 includes a hopper 301 and two hydraulic jacks 302. The hopper 301 is hinged to one side of the top of the main support frame 101, forming a tipping unloading fulcrum. Two hydraulic jacks 302 are symmetrically hinged to the side of the main support frame 101 away from the hinge end. The output ends of both hydraulic jacks 302 are hinged to the bottom of the hopper 301, and both hydraulic jacks 302 are electrically connected to the electrical control component 2022. The symmetrically arranged double hydraulic jacks 302 can simultaneously lift the hopper 301, evenly distributing the heavy material load and avoiding eccentric lifting force and hopper swaying and tipping. A load pressure sensor 405 is installed below the hopper 301. The load pressure sensor 405 collects the material load signal in real time and transmits it to the electronic control component 2022. The electronic control component 2022 adaptively adjusts the output thrust of the hydraulic jack 302 according to the load data. The output power is reduced when the load is empty and the lifting force is increased when the load is heavy, which effectively reduces the energy consumption of the hydraulic system and improves the unloading stability.

[0031] like Figure 1 , Figure 2 , Figure 3As shown, the intelligent detection mechanism 4 is the whole machine's active safety perception system, including a control panel 401, an underground hazardous gas sensor 402, an ultrasonic obstacle sensor 403, a Beidou positioning sensor unit 404, and a load pressure sensor 405. All sensor units are electrically connected to the electronic control components 2022 to achieve hardware-level linkage control. The control panel 401 is fixed at the front middle position of the main support frame 101 and has a built-in wireless signal receiving module for receiving remote control commands. The underground hazardous gas sensor 402 and the Beidou positioning sensor unit 404 are fixed on the control panel 401 respectively. The high-level deployment structure can improve the gas detection and positioning accuracy. Multiple sets of ultrasonic obstacle sensors 403 are fixed around the main support frame 101 to realize the detection of obstacles and personnel in the front, rear, left, and right areas of the whole vehicle. The load pressure sensor 405 is deployed below the hopper 301 to monitor the load status of the equipment in real time.

[0032] like Figure 1 , Figure 2 , Figure 3 As shown, during operation, each sensor collects environmental parameters, obstacle information, equipment position and load data in real time and feeds them back to the electrical control components 2022: when the level of harmful gas in the well exceeds the standard, the whole machine automatically cuts off power and stops for protection; when obstacles or personnel are detected ahead, the equipment automatically slows down and issues a warning; the Beidou positioning sensor unit 404 monitors the equipment's travel trajectory in real time to achieve deviation warning; at the same time, it adaptively adjusts the equipment's travel speed and hydraulic unloading force in combination with load data.

[0033] In this embodiment, the pre-operation assembly is as follows: the fully charged explosion-proof battery pack 103 is placed inside the battery explosion-proof installation compartment 1022 above the installation mesh plate 1026, the cover plate 1021 is pressed down, the inclined surface of the cover plate pushes the locking block 1041 to slide outward to compress the spring 1043, after the cover plate is completely in contact with the top surface of the compartment, the spring 1043 rebounds and pushes the locking block 1041 to lock the cover plate inward, completing the sealing assembly of the explosion-proof compartment; the explosion-proof battery pack 103 is automatically electrically connected to the electronic control component 2022, and the whole machine is powered on and ready for operation.

[0034] Transportation: The operator remotely sends a remote control signal, which is received by the control panel 401 and transmitted to the electronic control component 2022. The electronic control component 2022 controls the explosion-proof drive motor 2041 to output power, which drives the rear wheels 2031 to rotate through the gearbox 2042 and the bevel gear transmission pair 2043. When turning is required, the electronic control component 2022 controls the four hydraulic steering rods 2033 to extend and retract synchronously, and the four wheels turn synchronously to achieve lane changing and U-turn. During the driving process, the load pressure sensor 405 continuously transmits the load signal, and the electronic control component 2022 adjusts the motor output power at the hardware level to accelerate when unloaded and decelerate when loaded.

[0035] Comprehensive safety monitoring: The ultrasonic obstacle sensor 403, the underground hazardous gas sensor 402, and the Beidou positioning sensor unit 404 collect environmental and location signals in real time throughout the entire journey; when the gas level exceeds the standard, there are personnel obstacles ahead, or the equipment deviates from its course, the electronic control component 2022 automatically controls the equipment to decelerate, stop, and activate audible and visual warnings; if the remote control signal is interrupted, the disconnection braking component immediately activates the brake to lock the wheels and prevent the vehicle from rolling away.

[0036] Unloading operation: After driving to the unloading point, the unloading command is issued remotely. The electronic control component 2022 controls the two hydraulic jacks 302 to lift the hopper 301 upwards in sync. The hopper 301 flips around the hinge end to unload the material. After unloading is completed, the hydraulic jacks 302 retract in sync and the hopper is reset.

[0037] Quick battery swap: When the battery is depleted and needs to be replaced, manually move the locking blocks 1041 to the sides to compress the spring 1043 and release the cover 1021 from its limit position; the spring 1052 inside the automatic ejection assembly 105 pushes the push rod 1053 upward, automatically lifting the cover 1021, allowing a single person to directly remove the explosion-proof battery pack 103, replace it with a fully charged battery, and then re-lock the cover to continue continuous operation.

[0038] Battery safety management: During battery operation, internal temperature and voltage sensors continuously collect data. When the battery temperature is too high, the electronic control component 2022 activates the bottom cooling fan 1024 to enhance convection cooling. In case of overvoltage or overheating faults, the power output of the entire machine is directly cut off to prevent the battery from catching fire or exploding.

[0039] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An explosion-proof remote-controlled electric mining car, characterized in that, It includes a bearing mechanism (1), a driving mechanism (2), a material loading mechanism (3), and an intelligent detection mechanism (4). The bearing mechanism (1) is provided with a main bearing frame (101). The driving mechanism (2) is fixedly installed at the bottom of the main bearing frame (101). The material loading mechanism (3) is hingedly installed at the top of the main bearing frame (101). The intelligent detection mechanism (4) is fixedly installed on the outside of the main bearing frame (101). A power supply assembly (102) is fixedly installed on the inner bottom of the main frame (101), and an explosion-proof battery pack (103) is installed inside the power supply assembly (102). The drive mechanism (2) is provided with a chassis fixing component (201), which is fixedly installed on the bottom of the main frame (101). An electronic control component (202) is installed on the chassis fixing component (201), and a drive component (204) is installed on the chassis fixing component (201). Steering rolling components (203) are rotatably assembled on both sides of the chassis fixing component (201), and the drive component (204) and the steering rolling component (203) are in transmission cooperation. The electrical control component (202) is electrically connected to the power supply component (102), the drive component (204), the steering and rolling component (203), the material loading mechanism (3), and the intelligent detection mechanism (4), respectively.

2. The explosion-proof remote-controlled electric mining car according to claim 1, characterized in that, The electrical control assembly (202) is equipped with an electrical control box (2021). The electrical control box (2021) contains electrical control components (2022). The electrical control components (2022) are electrically connected to a remote control brake, a circuit disconnect brake, and a manual brake. The remote control brake, circuit disconnect brake, and manual brake are all installed at the connection position between the steering rolling assembly (203) and the drive assembly (204), respectively used to realize remote control braking, circuit disconnect braking, and manual braking. The explosion-proof battery pack (103) integrates a battery temperature sensor and a battery voltage sensor. The battery temperature sensor and the battery voltage sensor are electrically connected to the electrical control components (2022) for real-time monitoring of the working status of the explosion-proof battery pack (103).

3. The explosion-proof remote-controlled electric mining car according to claim 1, characterized in that, The power supply assembly (102) is provided with a battery explosion-proof mounting compartment (1022). A cover plate (1021) is fastened to the top of the battery explosion-proof mounting compartment (1022). Quick-release components (104) are symmetrically installed on the top of the battery explosion-proof mounting compartment (1022). The quick-release components (104) are provided with two limiting rings (1042). The two limiting rings (1042) are fixedly installed on both sides of the top of the battery explosion-proof mounting compartment (1022). Guide rods (1045) are fixed to the top of the two limiting rings (1042) on the side that is far apart from each other. On the outer sides of the guide rods (1045) that are close to each other, a sleeve block (1044) is slidably fitted. On the outer sides of the two guide rods (1045) that are far apart, a spring (1043) is fitted. One end of the spring (1043) is connected to the guide rod (1045), and the other end of the spring (1043) is connected to the sleeve block (1044). A locking block (1041) is fixedly installed at the bottom of the sleeve block (1044) and slides through into the limiting ring (1042). The locking block (1041) is fitted against the top surface of the cover plate (1021).

4. The explosion-proof remote-controlled electric mining car according to claim 3, characterized in that, Automatic ejection components (105) are installed at the four corners inside the battery explosion-proof installation compartment (1022). The automatic ejection components (105) are provided with sleeves (1051). The sleeves (1051) are fixedly installed at the four corners inside the battery explosion-proof installation compartment (1022). A second spring (1052) is fixedly installed at the bottom inside the sleeve (1051). A top rod (1053) is fixedly connected to the top of the second spring (1052). The top rod (1053) is slidably assembled inside the sleeve (1051). The top of the top rod (1053) abuts against the bottom surface of the cover plate (1021).

5. The explosion-proof remote-controlled electric mining car according to claim 4, characterized in that, The bottom of the battery explosion-proof installation compartment (1022) is fixedly installed with an installation base plate (1023), and a cooling fan (1024) is fixedly installed on the lower side of the installation base plate (1023). Multiple rubber mounting bases (1025) are fixedly installed inside the bottom of the battery explosion-proof installation compartment (1022), and multiple mounting mesh plates (1026) are fixedly installed on the top of the multiple rubber mounting bases (1025). An explosion-proof battery pack (103) is placed on the upper side of the multiple mounting mesh plates (1026).

6. The explosion-proof remote-controlled electric mining car according to claim 1, characterized in that, The chassis mounting assembly (201) is provided with a mounting chassis (2011). A rear drive load-bearing mounting bracket (2012) is welded and fixed to one side of the top surface of the mounting chassis (2011), and a front drive load-bearing mounting bracket (2014) is welded and fixed to the other side of the top surface of the mounting chassis (2011). Both the rear drive load-bearing mounting bracket (2012) and the front drive load-bearing mounting bracket (2014) are fixed to the bottom bolts of the main frame (101). A crash protection plate (2013) is threaded and fixed to the outer bottom of the front drive load-bearing mounting bracket (2014).

7. The explosion-proof remote-controlled electric mining car according to claim 6, characterized in that, The front drive support mounting bracket (2014) is rotatably equipped with front wheels (2032) at both ends. The front wheels (2032) are rotatably connected to the front drive support mounting bracket (2014) through ball joints. The rear drive support mounting bracket (2012) is rotatably connected to the rear drive support mounting bracket (2012) through ball joints. The top ends of the front drive support mounting bracket (2014) and the rear drive support mounting bracket (2012) are rotatably equipped with hydraulic steering rods (2033). The output ends of the two hydraulic steering rods (2033) on the same side are respectively hinged to the two front wheels (2032) and the two rear wheels (2031) on the same side. The hydraulic steering rods (2033) are electrically connected to the electronic control components (2022).

8. The explosion-proof remote-controlled electric mining car according to claim 7, characterized in that, The top of the main frame (101) is hinged to a hopper (301). Hydraulic jacks (302) are symmetrically arranged on the inner side of the main frame (101). One end of the hydraulic jack (302) is hinged to the other side inside the main frame (101), and the output end of the hydraulic jack (302) is hinged to the bottom of the hopper (301). The hydraulic jack (302) is electrically connected to the electronic control components (2022).

9. An explosion-proof remote-controlled electric mining car according to claim 8, characterized in that, A control panel (401) is fixedly installed at the front end of the main support frame (101). A downhole hazardous gas sensor (402) and a Beidou positioning sensor unit (404) are installed on the control panel (401). An ultrasonic obstacle sensor (403) is installed around the main support frame (101). A load pressure sensor (405) that cooperates with the bottom of the hopper (301) is installed on the top of the main support frame (101). The downhole hazardous gas sensor (402), ultrasonic obstacle sensor (403), Beidou positioning sensor unit (404) and load pressure sensor (405) are all electrically connected to the electronic control components (2022).

10. An explosion-proof remote-controlled electric mining car according to claim 6, characterized in that, An explosion-proof drive motor (2041) and a gearbox (2042) are fixedly mounted on the mounting chassis (2011). The output end of the explosion-proof drive motor (2041) is connected to the gearbox (2042) for transmission. The output end of the gearbox (2042) is equipped with a bevel gear transmission pair (2043), which is connected to the rear wheel (2031) for transmission.

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