The segmented large ring gear is one of the new products independently developed by the Transmission Equipment Branch of Northern Heavy Industry Group Co., Ltd. according to market demand. Recently, the first set of segmented large ring gear has been processed in the workshop and has been performed. Loading and testing, testing indicators are better than the drawing design requirements, and will be sent to the user for installation and use.
The large ring gear is developed for the 4.6m×100m rotary kiln in the Tonghua Construction New Nickel Smelting Project of the Mining Machinery Equipment Branch. The design power is 2×250kW, the speed ratio is 9.88, and the ring gear material is made of austempered ductile iron. ADI), weighing about 13.8 tons, has improved load carrying capacity and reduced weight by nearly 50% compared to conventional large ring gears. The diameter of the top ring of the ring gear is 6840mm, which is divided into 12 segments, each of which is about 1.7m long, which ensures the casting precision and reduces the machining allowance. In addition, the segmented large ring gear adopts single-stage machining and is assembled and used. Therefore, the limitation of the large hobbing machine and the large vertical car is avoided, and the special machining tool is used for the one-time clamping process on the numerical control boring machine, so that the machining precision is improved. Ensure that each tooth segment can be completely interchanged. When a single tooth segment is accidentally damaged during use, the new tooth segment can easily replace the damaged portion, which enables the equipment to resume production quickly, reducing maintenance costs and transportation costs. .
The successful implementation of the segmented large ring gear in the factory marks that the transmission equipment branch has continuously expanded the processing capability of the products and improved the processing precision of the products under the existing equipment. The company will continue to adhere to the "technical innovation". "The development path, pay close attention to the development of the market, and constantly accelerate the pace of development of new products, and march into higher-end product areas.
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