China's first 300-ton electric wheel dump truck Xiangtan off the assembly line
At 11:18 a.m. this morning, with the sound of a whistle whispering, China's first SF35100 300-ton electric wheel dump truck with its own independent intellectual property rights slowly pulled out of the workshop. The dump truck body weight 210 tons, the tire diameter of 4 meters, 300 tons of ore can be loaded and unloaded. The successful off-line of the car broke the long-term technical monopoly of large-scale electric wheel dump trucks in a few countries such as the United States and Russia, and its operating cost was only one-third of that of foreign countries. The 300-ton electric wheel dump truck has high technical content, strong power, low emission, energy saving and environmental protection, and a high degree of intelligent control of vehicles, breaking the foreign technology blockade and monopoly, and foreign similar products in the price, spare parts supply, after-sales service, etc. Compared with obvious advantages and stronger competitiveness.
In recent years, Xiangdian cooperated with Tsinghua University, Peking University, Hunan University and other famous institutions of higher learning and scientific research institutes at home and abroad to study and overcome the vehicle virtual design technology based on a variety of situations, high-power AC frequency conversion speed traction and control Technology, hydraulic system integrated performance analysis and optimization design technology and other technical difficulties, research and development of a new type of 108 tons, 154 tons, 185 tons, 220 tons, 300 tons of carts with complete independent intellectual property rights, formed a series, intelligent, Industrialization, large-scale pattern. Up to now, there are more than 200 technical patents in Xiangtan’s large-scale mining equipment and related product fields, and nearly 1,000 units (sets) of complete vehicles have been provided for major open-pit mines in China.
Currently the charging circuit of Harley is designed for AGM Battery, as lithium charging requires more stringent voltage and current, and the charging circuit is more sophisticated. Harley power usually supplies are charged with a constant current, but lithium is sensitive to overcharging. Lead acid is charged at a constant voltage. Lead-acid batteries are not afraid of open circuit, misconnection, short circuit, overload and so on. Lithium is different, although lithium is equipped with a protective plate, but the protection effect is not very good.
Compared with other motorcycle trams, Harley battery reliability and durability have a good guarantee. It can be used for more than three years under proper and reasonable use and maintenance. The Harley battery has the following advantages:
1, the battery electrode design is reasonable, the electrode screw fastening surface is flush with the battery side, can properly tighten the starting motor line, without adding gaskets. Avoid bad contact.
2, the battery is AGM type, that is, the battery using pure sulfuric acid solution as the electrolyte. The cyclic charging capacity is 3 times higher than the traditional storage battery. Also maintenance-free (refers to supplementary electrolyte type).
3. The charging circuit of the Harley motorcyclec is designed for AGM batteries, and the matching degree is higher than other types of batteries.
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