Use of thrust cone bearings to increase efficiency of helical gears
使用推力圆锥轴承提高斜齿轮的效率
基本信息
- 批准号:200476772
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Priority Programmes
- 财政年份:2011
- 资助国家:德国
- 起止时间:2010-12-31 至 2018-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Thrust cones offer an excellent opportunity to raise the efficiency of helical gears. As a hydrodynamic axial sliding bearing they compensate axial forces generated by the helical gears close to their point of origin. Due to the small distance between thrust cone and pitch circle the differential velocity during operation is lower in the thrust cone bearing than in conventionally axial bearings, which leads to a significant reduction of friction losses. Aim of the proposed project is to gain better understanding about the overall system thrust cone bearing to develop application specific design guidelines and expand the limits of application for this technology. In addition to the work of the first project period, in which especially the transition behavior from mixed friction area to hydrodynamic lubrication region was investigated, boundaries for thrust cones operating in mixed lubrication regime shall be determined in the second period. Even so the usual point of operation for thrust cone bearings is clearly in the field of hydrodynamic lubrication, in practice damages mainly occur during start-up and braking situations when the mixed friction region needs to be traversed. The determination of design characteristics by extensive experimental studies on the twin-disc test rig at the IMW are intended to allow resource-efficient design of thrust cone bearings with a reliable fatigue life prediction. A further aspect of the second period is the machine dynamic view on the system behavior of thrust cone transmissions compared to gears with conventional bearings. For this purpose the effects of the thrust cone bearing on the vibration and damping behavior and the efficiency of the transmission system shall be detected, on the one hand simulative by using multi-body-simulations, on the other hand experimentally by building a comparing gear set. Through the project the performance of the thrust cone technique shall be further increased to contribute to more energy efficient transmissions.
推力锥提供了一个极好的机会来提高斜齿轮的效率。作为一种流体动压轴向滑动轴承,它们补偿靠近原点的斜齿轮所产生的轴向力。由于推力圆锥距节圆的距离较小,推力圆锥轴承在运行过程中的差速比常规轴向轴承的速度差要小,从而大大降低了摩擦损失。拟议项目的目的是更好地了解整个推力圆锥轴承系统,以制定具体应用的设计指南,并扩大这项技术的应用范围。除了第一阶段的工作,特别是从混合摩擦区到流体动力润滑区的过渡行为的研究外,第二阶段还将确定在混合润滑状态下工作的推力锥的边界。尽管如此,推力锥轴承的通常工作点显然是在流体动力润滑领域,实际上,损坏主要发生在需要穿越混合摩擦区的启动和制动情况下。通过在IMW的双盘试验台上进行广泛的实验研究来确定设计特性,旨在实现具有可靠疲劳寿命预测的推力锥轴承的资源效率设计。第二个阶段的另一个方面是关于推力锥形变速器与传统轴承齿轮相比的系统行为的机械动力学观点。为此,一方面应通过多体模拟进行模拟,另一方面应通过建立比较齿轮组进行实验,以检测推力圆锥轴承对传动系统的振动和减振性能及效率的影响。通过该项目,将进一步提高推力锥技术的性能,为更节能的变速器做出贡献。
项目成果
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会议论文数量(0)
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Professor Dr.-Ing. Armin Lohrengel其他文献
Professor Dr.-Ing. Armin Lohrengel的其他文献
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{{ truncateString('Professor Dr.-Ing. Armin Lohrengel', 18)}}的其他基金
Development of technologies to produce electrodes for Electro Discharge Machining by Layer Manufacturing Technique to machine moulds and complex shapes products
开发通过分层制造技术生产电火花加工电极以加工模具和复杂形状产品的技术
- 批准号:
138936022 - 财政年份:2009
- 资助金额:
-- - 项目类别:
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Load sensitive spline shaft with sensory material
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Design of thrust collar bearings in the high load range
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