XCMG independently researches and develops the first AC drive dump truck in China

On September 26th, Xugong Group's first DE170 electric drive dump truck was off the assembly line at the Xugong Research Institute and will participate in the BICES exhibition held in Beijing on October 18-21. The vehicle adopts an overall axle-type and rear-discharge type structure. The vehicle is 13 meters wide, 7 meters high, and 6 meters in weight. Its body weight is 110 tons, and its carrying capacity is 170 tons. Its huge body resembles King Kong's life and is devotion to God. DE170 transmission system uses the current international advanced AC-DC-AC transmission drive technology, marking the Xugong Research Institute has made major breakthroughs in the research and development of large-tonnage electric drive dump trucks.

As the pillar industry of the national economy, the mining machinery industry plays an important role in China's economic construction and social development. Especially during this century, it has been supported by a series of industrial policies such as the development strategy of the western region, the revitalization of equipment manufacturing industry and the rise of central China, as well as the world’s machinery, which has been sustained by the country’s macroeconomic development during the “10th Five-Year” and “Eleventh Five-Year” period of the country. Affected by factors such as the transfer of industries, China’s significant achievements in the autonomy of major technology and equipment, and the level of mechanical products have made great progress.
During the 12th Five-Year Plan period, China's economy will continue to maintain a steady and rapid pace of development. The ever-increasing infrastructure construction and the continued heating up of mineral energy demand will inevitably drive the rapid development of the mining machinery industry. As a kind of mine transport equipment, electric drive dump trucks are widely used in large-scale open-pit coal mines, iron ore, and chemical and water conservancy and hydropower construction because of their advantages such as heavy load, strong power, short shipping distance, and fast shipment. Xugong Research Institute is closely following the national policy of vigorously developing the large-scale non-highway (miner) dump truck industry, pursuing opportunities, and relying on high-quality R&D teams to vigorously invest in the development of electric drive dump trucks.
Electric drive dump trucks have been developed in foreign countries for decades. The basic technology has been very mature. Foreign brands mainly include Caterpillar, Terex, Japan Komatsu, etc. Their products are mainly concentrated in varieties of 100 tons or more. . Our country has long relied on imports of electric drive dump trucks. Compared to Japan and the United States and other mature electric drive dump truck manufacturers, the development of domestic electric drive dump trucks started late, the technology is weak and the reliability is low. In recent years, on the one hand, with the rapid economic development of neighboring countries and African countries in China, its infrastructure and the development of new large-scale mines have led to a sustained and rapid increase in the demand for dump trucks. On the other hand, the user's choice has determined that it will tend to be more large-scale and the development of new technology applications; for mines of different sizes, they will try to use large-tonnage models as much as possible to reduce the total number of vehicles. The choice of the tonnage of the electric drive dump truck by the user will depend on whether it helps to increase the production efficiency of the mine. On the one hand, in order to pursue production efficiency, large-scale mines prefer to use heavy-duty off-highway dump trucks; on the other hand, due to the constraints of their own conditions, small and medium-sized mines are more suitable for non-dumping loads of 91-216 tons. Road dump truck. However, the overall trend is that users will use larger non-highway dump trucks according to their own conditions. In addition, the economic life of electric dump trucks is generally about 10 years, and the annual turnover rate is 10%.
Xugong Research Institute is the incubator base of Xugong Group's new products and core components. It relies on the strong R&D strength accumulated by Xugong Group in the engineering vehicle field for more than 20 years. Xugong Research Institute has established a special mine card research institute to carry out project specialization. The DE170 electric drive dump truck was successfully developed. The vehicle adopts an integral axle-type, rear-discharge type structure. The transmission system adopts the current international advanced AC-DC-AC electric transmission drive technology. The car fully owns independent intellectual property rights and has received more than 150 patents. The electric drive system is the core component of the electric wheel dump truck. The DE170 electric drive system was jointly developed by the XCMG Group and the CNR Group. The research and development of the electric drive dump truck AC drive system was developed on the basis of the CNR electric drive transmission system. The successful application of this technology has broken the monopoly of foreign companies. This technology uses domestic generators, frequency converters, variable frequency motors and domestic core control systems to achieve complete localization and improve the market competitiveness of domestic electric drive dump trucks. XCMG is the first company in the world to use AC-DC-AC transmission drive technology on 170-ton electric dump trucks. This reflects the determination and strength of the XCMG Group to revitalize the national industry. (This article is from Xugong)

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