Energy system of mine vehicle

Abstract

The invention discloses an energy system of a mine vehicle. The energy system includes a vehicle body. The vehicle body is provided with a power source, a motor group and a control device. The power source includes a lithium battery pack. The control device includes a controller. The controller is connected with a BMS module and an inverter module. The BMS module is electrically connected with thelithium battery pack. The inverter module is electrically connected with the motor group. The motor group is in transmission connection with a hydraulic mechanism. The motor group includes a main motor and an auxiliary motor. The hydraulic mechanism includes a main pump and an auxiliary pump. The main pump is coaxially connected with the main motor. The auxiliary pump is coaxially connected withthe auxiliary motor. The main pump makes the vehicle body walk through a walking motor and a walking gearbox. The auxiliary pump makes an auxiliary mechanism move through the auxiliary motor and an auxiliary gearbox. The controller makes the rotational speed of the motor group be adjusted according to required torque of the vehicle body. The system power source is the lithium battery pack, zero emission is realized, workspace and travel are not limited, the controller adjusts the rotational speed of the motor group in real time, and the required torque of the vehicle body in the working process is provided.

Description

technical field [0001] The invention relates to the technical field of mining machinery, in particular to an energy system of a mining vehicle. Background technique [0002] The power source of traditional mining vehicles mostly uses diesel engines as the power source. Diesel engines are widely used due to their high horsepower and low cost of use. energy, and the pollution to the environment cannot be ignored. In addition, the diesel main motor needs to have sufficient oxygen when it works, and when it is used in a working environment with thin oxygen, such as tunnels, mines, plateaus and other places where the air is not circulated, the power of the main motor will decrease and the working efficiency will decrease. reduce while increasing the emission of harmful substances. [0003] With the rapid development of electronic power technology, motor-driven hydraulic pumps have been widely used in the new energy industry, but the motor needs to be connected to the power stat...

AI Technical Summary

Problems solved by technology

[0002] The power source of traditional mining vehicles mostly uses diesel engines as the power source. Diesel engines are widely used due to their high horsepower and low cost of use. energy, and the pollution to the environment cannot be ignored

In addition, the diesel main motor needs to have sufficient oxygen when it works, and when it is used in a working environment with thin oxygen, such as tunnels, mines, plateaus and other places where the air is not circulated, the power of the main motor will decrease and the working efficiency will decrease. reduce while increasing emissions of harmful substances

[0003] With the rapid development of electronic power technology, motor-driven hydraulic pumps have been widely used in the new energy industry, but the motor needs to be connected to the power station through cables, and the machinery is limited by the cables during use, which makes the working space and formation restricted. Strict restrictions make the working mode single. At the same time, the motor needs to be matched with the transmission device to realize the transmission with the hydraulic pump. This structure is costly and is not conducive to system power adjustment and efficiency improvement.

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