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China National Heavy Duty Truck Group Datong Gear Co., Ltd. cooperated with Austrian AVL Liszt internal combustion engine and test equipment company to enable China to master the key technologies of heavy-duty automobile mechanical gearbox production and formed a low cost, high performance, high torque suitable for China's national conditions. Synchronizer mechanical gearbox industrialization production capacity.
Both China and Austria have developed 16-speed heavy-duty automotive mechanical transmission products with advanced international standards to replace similar imported products. Solved the key problems of low gears and countershaft gears of the front auxiliary box, pitting of the front axle of the two axles, burning of the rear auxiliary box synchronizer, pitting of the sun gear, burning of the planetary gear bearings, and poor lubrication of the rear auxiliary box. technical challenge. Mastered the modern car mechanical transmission design and manufacturing of new technologies and new methods, HW19710T series transmission products have achieved mass production, as of the end of 2012, the cumulative sales income of 270 million yuan. The main results of the project have been applied to the research and development and optimization of other multi-range mechanical transmissions, effectively improving the performance of the self-owned brand transmissions. A total of 5 invention patents were obtained, filling the domestic gap.
At present, the cooperation between Big Tooth Company and AVL Austria has expanded into the AMT automatic transmission field and continues to develop AMT automatic transmissions for commercial trucks, dump trucks, buses and special purpose vehicles.