Lithium battery mine car maintainability arrangement structure

Abstract

The invention discloses a maintainability arrangement structure of a lithium battery mine car. According to the structure, maintainability equipment of the whole car is systematically divided into four functional areas, namely a battery maintenance area, a cabin maintenance area, an auxiliary system maintenance area and a valve group and sensor maintenance area. The battery maintenance area adopts a battery pack same-end connection and lateral drawing type design; the cabin maintenance area adopts a high-voltage box and an all-in-one controller stacked and staggered layout, and is integrated with front-end maintainable equipment; the auxiliary system maintenance area is arranged in an up-down layered and single-side open manner; the valve group and sensor maintenance area adopts a mode that a valve group, a sensor and an oil pump are highly integrated on an oil tank. According to the invention, through partition management and targeted layout optimization, convenient, rapid and centralized maintenance of key equipment is realized, and the maintainability and operation efficiency of the whole vehicle are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of mining vehicle technology, and in particular to a maintainable arrangement for a lithium battery mining vehicle. Background Technology

[0002] Currently, the non-coal underground lithium battery mining vehicle industry is in the pilot operation stage. The stability of the vehicle's three-electric system, hydraulic system, cooling system, and auxiliary system is not high in the early stages of product development. The vehicles operate in the humid environment of underground tunnels, and the frequent start-stop operations put a great strain on the vehicle and hydraulic systems. Therefore, the operating conditions of the products require high stability.

[0003] Currently used fuel-powered transport vehicles employ an engine-centric power structure. The engine drives the rear wheels, lifts the cargo box, and rotates the oil pump. Due to the high reliability achieved through engine iterations, these vehicles generally offer high operational stability. Hydraulic pumps, valve groups, and sensors are typically integrated into the vehicle's design. Underground lithium-ion battery-powered mining vehicles have a shorter development history. These converted from fuel-powered vehicles utilize the hydraulic, cooling, and auxiliary systems of fuel-powered vehicles. However, due to the immaturity of the three-electric systems (hydraulic, electrical, and electronic control) in the early stages of operation, maintenance of these systems is difficult. Therefore, non-coal underground lithium-ion battery-powered mining vehicles should prioritize maintainability and improve uptime. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a maintainable layout structure for a lithium battery mining vehicle. Through scientific zoning and optimized equipment layout, the maintainability of the whole vehicle is greatly improved, maintenance time is shortened, and maintenance costs are reduced.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a maintainable layout structure for a lithium battery mining vehicle, wherein the maintainable equipment includes a gearbox, a power battery, an air compressor, a hydraulic oil pump, a high-pressure box, a multi-function controller, a radiator, a hydraulic oil radiator, a pressure sensor, a temperature sensor, a thermal management unit, a solenoid valve, a water tank, an air filter, and a steering gear. The vehicle includes a battery maintenance area, engine compartment maintenance area, auxiliary system maintenance area, and valve assembly and sensor maintenance area. The battery maintenance area is located behind the cab, the engine compartment maintenance area is located below the hood of the engine compartment, the auxiliary system maintenance area is located on the vehicle sub-platform to the right of the cab, and the valve assembly and sensor maintenance area is located behind the battery maintenance area on both sides of the vehicle frame. The power battery is located in the battery maintenance area. The power battery includes a battery box and battery packs arranged in layers inside the battery box. The electrical connections and cooling pipe connections of the battery pack are connected at the same end, and all electrical lines and cooling pipes can be inspected and maintained on the same side of the battery box. The battery pack is fixed with a slide rail, and the battery pack can be replaced by pulling it out from the side of the battery box. The high-voltage box and the multi-function controller are installed inside the engine room maintenance area. The two devices are installed in a stacked and staggered manner. The high-voltage box is installed on top and can be opened for maintenance. The multi-function controller is installed below and has an exposed maintenance port. The maintenance of the high-voltage box and the multi-function controller can be completed in the engine room maintenance area. The radiator is installed in front of the engine compartment maintenance area, allowing for direct maintenance and coolant addition within the maintenance area; the air compressor filter is installed in the front right of the engine compartment maintenance area, allowing for direct filter replacement within the maintenance area; the steering gear is installed in the front left of the engine compartment, allowing for direct inspection and maintenance inside the engine compartment cover. The gearbox is installed below the driver's cab with the access panel facing upwards. The valves and internal gears of the gearbox in the driver's cab can be inspected by disassembling the driver's cab floor module. The auxiliary system maintenance area has a thermal management unit installed at the top and an air compressor, pressure sensor, power take-off valve, and hydraulic oil radiator installed at the bottom. The thermal management unit can be inspected by directly opening the cover, and the equipment at the bottom can be inspected by removing the protective plate on the right side of the auxiliary platform. The valve assembly and sensor maintenance area is equipped with an oil tank. The valve assembly, temperature sensor, and pressure sensor are integrated and located above the oil tank. The oil pump is integrated on the inside of the oil tank facing the frame, which allows for the maintenance of the valve assembly, sensors, and oil pump.

[0006] The beneficial effects of this invention compared to the prior art are: The invention, through the design concept of "zoning management and centralized maintenance," logically divides the complex equipment throughout the vehicle according to its function and maintenance relevance, and specifically optimizes the equipment layout in each area, achieving the following: 1. Significantly improved maintenance efficiency: Maintenance personnel can quickly locate faulty equipment and access the target with minimal disassembly steps, greatly reducing maintenance time; 2. Convenient and safe operation: The design of pull-out battery pack, open-cover repair, and staggered inspection port simplifies the operation process, improves maintenance conditions, and reduces operational risks. 3. Rational space utilization: The stacking and staggered arrangement, as well as the high degree of integration, ensure both ease of maintenance and the compactness of the overall vehicle structure; 4. Reduced overall costs: Reduced vehicle downtime due to maintenance and reduced reliance on highly skilled maintenance personnel, thereby effectively improving uptime and operational economy. Attached Figure Description

[0007] Figure 1 This is a side view of the vehicle.

[0008] Figure 2 This is a top view of the vehicle.

[0009] Figure 3This is a schematic diagram of the inside of the battery box. Detailed Implementation

[0010] The present invention will now be further described with reference to the accompanying drawings.

[0011] like Figure 1 , 2 As shown, a maintainable layout structure for a lithium battery-powered mining vehicle includes maintainable equipment such as a gearbox 7, a power battery 3, an air compressor, a hydraulic oil pump, a high-pressure box 9, a multi-function controller 8, a radiator 11, a hydraulic oil radiator, a pressure sensor, a temperature sensor, a thermal management unit 2, a solenoid valve, a water tank 13, an air filter 10, and a steering gear 12. Its core feature is the integration and division of all vehicle maintenance-related equipment into four clearly defined maintenance areas: Battery maintenance area: Located behind the driver's cab, it is mainly used for the installation and maintenance of the power battery system.

[0012] Engine compartment maintenance area: Located below the engine compartment hood, it houses the vehicle's high-voltage control core and some front-end auxiliary systems.

[0013] Auxiliary system maintenance area: Located on the vehicle's sub-platform to the right of the driver's cab, it mainly houses thermal management and pneumatic / hydraulic cooling equipment.

[0014] Valve assembly and sensor maintenance area: Located behind the battery maintenance area on both sides of the vehicle frame, it is used to integrate and arrange the hydraulic oil tank and its related valve assembly and sensors.

[0015] like Figures 1 to 3 As shown, the specific layout and maintainability design of each area are as follows: Battery maintenance area: The power battery 3 is located in this area, which includes a battery box and a battery pack 31 arranged in four layers inside the battery box. The electrical wiring 33 and cooling pipe 32 of the battery pack 31 are connected at the same end, and all interfaces are located on the same side of the battery box for easy centralized maintenance. The battery pack 31 is fixed by a slide rail 34 and can be replaced by pulling it out from the side of the battery box, which is simple and quick to operate.

[0016] Engine compartment maintenance area: This area houses a high-pressure box 9 and a multi-function controller 8. They are installed in a stacked, staggered configuration, with the high-pressure box 9 on top for easy access from the top. The multi-function controller 8 is located below, with its staggered layout revealing its independent access port. Additionally, the radiator is installed at the front of the engine compartment maintenance area, allowing for direct coolant addition within this area; the air compressor filter is installed at the front right of the engine compartment, allowing for direct replacement within this area; and the steering gear 12 is installed at the front left of the engine compartment, allowing for direct access from inside the engine compartment cover 1.

[0017] Transmission 7 Maintenance: Transmission 7 is installed below the driver's cab with its access panel facing upwards. By disassembling the floor module of the driver's cab, the valves and internal gears of transmission 7 can be inspected from above without having to operate under the vehicle.

[0018] Auxiliary System Maintenance Area: The upper part of this area houses the thermal management unit 2, which can be inspected via a direct-opening cover. The lower module 5 integrates the air compressor, pressure sensor, power take-off valve, and hydraulic oil cooler. All equipment in the lower section can be exposed and inspected by removing the single protective panel on the right side of the sub-platform.

[0019] Valve assembly and sensor maintenance area: This area houses the oil tanks; the lifting oil tank 4 is on the right, and the hydraulic oil tank 14 is on the left. The solenoid valves, temperature sensors, and pressure sensors are integrated into a module 6 and positioned above the oil tanks; the hydraulic pump is integrated into the oil tanks facing inwards towards the vehicle frame. This integrated layout allows for efficient maintenance of the valve assembly, sensors, and pump within the same local area.

Claims

1. A maintainable layout structure for a lithium battery mining vehicle, the maintainable equipment including a gearbox, power battery, air compressor, hydraulic oil pump, high-pressure box, multi-function controller, radiator, hydraulic oil radiator, pressure sensor, temperature sensor, thermal management unit, solenoid valve, water tank, air filter, and steering gear, characterized in that: The vehicle includes a battery maintenance area, engine compartment maintenance area, auxiliary system maintenance area, and valve assembly and sensor maintenance area. The battery maintenance area is located behind the cab, the engine compartment maintenance area is located below the hood of the engine compartment, the auxiliary system maintenance area is located on the vehicle sub-platform to the right of the cab, and the valve assembly and sensor maintenance area is located behind the battery maintenance area on both sides of the vehicle frame. The power battery is located in the battery maintenance area. The power battery includes a battery box and battery packs arranged in layers inside the battery box. The electrical connections and cooling pipe connections of the battery pack are connected at the same end, and all electrical lines and cooling pipes can be inspected and maintained on the same side of the battery box. The battery pack is fixed with a slide rail, and the battery pack can be replaced by pulling it out from the side of the battery box. The high-voltage box and the multi-function controller are installed inside the engine room maintenance area. The two devices are installed in a stacked and staggered manner. The high-voltage box is installed on top and can be opened for maintenance. The multi-function controller is installed below and has an exposed maintenance port. The maintenance of the high-voltage box and the multi-function controller can be completed in the engine room maintenance area. The radiator is installed in front of the engine compartment maintenance area, allowing for direct maintenance and coolant addition within the maintenance area; the air compressor filter is installed in the front right of the engine compartment maintenance area, allowing for direct filter replacement within the maintenance area; the steering gear is installed in the front left of the engine compartment, allowing for direct inspection and maintenance inside the engine compartment cover. The gearbox is installed below the driver's cab with the access panel facing upwards. The valves and internal gears of the gearbox in the driver's cab can be inspected by disassembling the driver's cab floor module. The auxiliary system maintenance area has a thermal management unit installed at the top and an air compressor, pressure sensor, power take-off valve, and hydraulic oil radiator installed at the bottom. The thermal management unit can be inspected by directly opening the cover, and the equipment at the bottom can be inspected by removing the protective plate on the right side of the auxiliary platform. The valve assembly and sensor maintenance area is equipped with an oil tank. The valve assembly, temperature sensor, and pressure sensor are integrated and located above the oil tank. The oil pump is integrated on the inside of the oil tank facing the frame, which allows for the maintenance of the valve assembly, sensors, and oil pump.

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