Aiming at problems such as low utilization rate of drive motor power and low transmission efficiency of traditional dual-drive scraper conveyors and limited increase in laying length, a hetero-power dual-drive scraper conveyor equipment with a trough width of 1400mm, total installed power of 5000kW (3000kW at the head and 2000kW at the tail), suitable for large mining height fully mechanized caving working faces with a working face length of more than 350 meters has been developed. It solves problems such as short fully mechanized caving working faces, many excavation roadways, high coal mining costs, low mining efficiency, and difficulties in increasing coal production, and realizes high-yield and high-efficiency coal mining.
Technical Features
- Method and coordinated control strategy for unequal power configuration at head and tail: Through control algorithms, the equipment is controlled to run at the set chain speed, and the output torque of the head and tail motors is reasonably distributed to fully utilize the efficiency of the motors, improve the service life of equipment mechanical components, and achieve the purpose of green energy saving.
- Dynamic control technology of chain pre-tension for hetero-power scraper conveyors at head and tail: A dynamic coordinate method is used to construct a chain tension dynamic adjustment device during operation, optimizing the chain tension dynamic adjustment control strategy, realizing automatic telescopic tail of the scraper conveyor to dynamically adjust the scraper chain pre-tension, achieving the purpose of extending the service life of sprockets and chains.
- High-strength end-discharge scraper machine head with anti-bias heavy structure, solving the phenomenon of power unit bias heavy at the head caused by the sharp increase in power of the drive motor at the head.
