Haoye Successfully Develops 2200Nm Synchronous Type Planetary Transmission for Heavy Commercial Vehicles


On March 4, 2011, Chongqing Science and Technology Co., Ltd. as the key scientific and technological project undertaken by Qijiang Gear Transmission Co., Ltd., "2200Nm Synchronous Planetary Transmission for Heavy Commercial Vehicles" passed the China Automotive Engineering Research Institute and Machinery organized by the Chongqing Municipal Science and Technology Commission. An inspection team consisting of National Key Laboratory of Transportation, Chongqing Jiaotong University, Chongqing University of Technology and Chongqing Vehicle Inspection and Research Institute accepted and accepted the acceptance. The acceptance of this project will help promote the export of heavy duty commercial vehicle transmissions and boost new growth points for economic development.

Experts in the inspection and acceptance group visited the prototype company and production site. Subsequently, the Chongqing Municipal Science and Technology Commission organized the acceptance meeting for the project at Jiaofang Transmission Company. The expert acceptance team listened to the project research report and technical report made by the gear transmission company project team, reviewed the relevant technical data, and after careful discussion and questioning of the project, the project concluded that the project had completed the research tasks specified in the contract.

The expert acceptance team pointed out that Fangyao Transmission Co., Ltd. provided complete specifications of the acceptance data and met the acceptance requirements; the project team developed simulation software for the power transmission system of heavy-duty commercial vehicles, and adopted advanced transmission gear finite element analysis software, transmission lubrication analysis software and gear repair. Shaped software has formed the technology related to the design, testing and mass production of heavy-duty commercial vehicle transmissions and key components with independent intellectual property rights.

The transmission adopts barrel-type integrated housing, short-stroke double-cone synchronizer, full-cone bearing support, large-flow pump forced lubrication system, and shift assist device, which solves the design and modification of large-size, large-load helical gears. With the key technical issues such as heat treatment deformation of key components and welding processes, the developed 2200Nm synchronizer type planetary transmission adapted to high-power engines has advanced performance and has been applied to export vehicles with a good market prospect.

Applying this project's breakthrough key technologies for transmission torque capacity and reliability improvement, three new products, S6-150, S6-160, and 5S-150GP, have been developed and developed to achieve good economic and social benefits; this project has applied for 2 invention patents. 3 papers were published, 6 postgraduates were trained, and the project funds were used reasonably, which met the relevant requirements.

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