The Designing of Heavy Truck Rear Drive Axles
Abstract
The driving axle takes automobile one of four big units, its performance quality immediate influence complete bikes performance, but appears regarding the truck especially important. When uses the uprated engine to output the big torque satisfies the present truck fast, the heavy load high efficiency, the high benefit need, must match one highly effective, the reliable driving axle. The driving axle generally by the final drive, the differential, the wheel transmission device and the driving axle housing and so on is composed. Will therefore use the transmission efficiency high single stage deceleration driving axle to become in the future the heavy load automobile's development direction.
This article referred to the traditional driving axle's design method to carryon the truck driving axle's design. This article first determines major component's structure pattern and the main design variable; Then the reference similar driving axle's structure, determines the overall project design; Finally to the host,the driven bevel gear, the differential device circular cone planet gear, the rear axle shaft gear, full-floating axle shaft and the banjo housing's intensity carried on the examination as well as has carried on the life examination to the supporting bearing.
This design has the following merit: What because uses the central single stage deceleration driving axle, causes the entire rear axle of car the structure to be simple, the fabrication technology is simple, thus big reduced the production cost. And, the arc cusp gear's single stage main gear box raised the rear axle of car transmission efficiency, enhanced the transmission feasibility.
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