基于Pro／E参数化斜齿轮建模技术

应用Pro／E软件的参数化造型功能，不需要二次开发，直接创建渐开线斜齿圆柱齿轮模型，对直齿、人字齿齿轮的建模具有借鉴作用。     

Human tracking system based on adaptive multi-feature mean-shift for robot under the double-layer locating mechanism

Human tracking has been a challenging task for robot in the past decades. In this paper, to realize the human following in a cluttered environment, a human tracking system based on adaptive multi-feature mean-shift (AMF-MS) under the double-layer locating mechanism (DLLM) is proposed to solve the problem of distinguishing target, occlusion, and quick turning. The DLLM, considering the course location processing and fine location processing, is designed to estimate the person’s position using the fusion of heterogeneous data. As an ID tag attached on target can be detected by RF antennas, the course locating method can track the target easily and quickly. The Bayes rule is introduced to calculate the probability where the tag exists due to the instability of RF signals. In the fine locating step, the AMF-MS is proposed because it can reduce computational load and represent target by multi-feature histogram function. Meanwhile, we combine extended Kalman filter and AMF-MS to overcome MS’s inability of occlusion. To control the robot following the target person precisely, an intelligent gear shift strategy based on fuzzy control is implemented by analyzing the robot structure. Experiments demonstrate that the proposed approach is robust to handle complex tracking conditions, and show the system has an optimum performance.     

氯丁橡胶并用高苯乙烯树脂及其在齿形胶带中的应用

对氯丁橡胶并用高苯乙烯树脂进行了实验，通过正交试验法对硫化体系做了优化选择，确定了制作齿形胶带的最佳配方，提高了胶带使用寿命。     

大型矿车用减速机齿轮系统的疲劳分析

提出一种基于"放大因子"、采用二维平面单元模拟三维实体动态工况的计算疲劳的方法,对某矿车减速机齿轮系统进行疲劳分析,得到太阳轮、行星轮和扭力管在不同抗拉强度下的疲劳寿命.结果表明:太阳轮和扭力管最易发生疲劳破坏;齿轮寿命对抗拉强度的依赖性较敏感;得出的齿轮系统热处理后的抗拉强度建议值能为设计提供参考,且该方法能大大提高计算效率.     

齿轮泵挤出技术在橡塑行业的应用与发展

简要介绍了齿轮泵的结构、性能及工作原理，从齿轮泵挤出机的发展，齿轮泵挤出系统向压延机喂料，齿轮泵与MCTD挤出机相结合三个方面，讲述了其在橡塑行业中应用的优越性及缺憾。     

改性聚醚醚酮复合材料在齿轮上的应用

用液晶聚合物（TLCP）、碳纤维（CF）、铜粉、MoS2等添加剂对聚醚醚酮（PEEK)进行改性，制备了改性PEEK复合材料，讨论了各添加剂对改性PEEK性能的影响，并用来制造发动机机油泵齿轮。结果表明，用TLCP、CF等改性的PEEK可提高PEEK的强度和耐磨性，并改善加工性，该复合材料能满足机油泵类齿轮的使用要求。     

回转窑传动齿圈振动分析及处理方法

回转窑传动系统主要由电动机、减速机、大齿圈和小齿轮组成。因回转窑属大型重载高温设备，其大齿圈易发生振动等故障而影响窑的正常运行。作者详细分析了回转窑齿圈振动的产生原因，并介绍了对应的解决处理方法。中铝股份山西分公司的生产实践表明，这些针对性的措施，均能有效地解决大齿圈的振动问题，从而保证了回转窑的正常运转。     

冶金过程对齿轮钢窄淬透性的影响与控制

采用电炉炼钢短流程生产20CrMnTiH工艺,对影响淬透性的冶金因素进行分析,发现工艺过程对化学成份控制精度的影响因素并进行研究优化,建立电炉短流程生产齿轮钢20CrMnTiH子钢号工艺模型,加强从加料到精炼全过程控制,确保产品成份。     

误差对无侧隙双滚子包络环面蜗杆传动啮合性能的影响研究

为了研究误差对无侧隙双滚子包络环面蜗杆传动啮合性能的影响规律,利用齿轮啮合原理首次建立了该蜗杆传动在误差状态下的啮合方程、润滑角方程和诱导法曲率方程,分析了蜗杆蜗轮轴交角误差、中心距误差、蜗杆轴向窜动误差、蜗轮滚子齿距角误差、蜗轮滚子偏距安装误差等对蜗杆润滑角、诱导法曲率的影响及变化规律。研究结果表明:蜗轮滚子偏距误差对蜗杆的润滑性能影响最大,轴交角误差对蜗杆接触性能影响最大,蜗杆中心距误差、蜗杆轴向窜动误差和蜗轮滚子齿距角误差对该蜗杆传动的接触性能影响较小,在制定加工工艺时应尽量减小齿距角误差和蜗杆蜗轮轴交角误差。本文的研究结果为制定合适的蜗杆加工工艺及进一步的相关研究奠定了理论基础。     

Study on Steering Control Strategy for High-Speed Tracked Vehicle with Hydrostatic Drive

Steering control strategy for high-speed tracked vehicle with hydrostatic drive is designed based on analyzing the fundamental steering theories of the hydrostatic drive tracked vehicle. The strategy is completed by the cooperation between integrated steering control unit and pump & motor displacement controller. The steering simulation is conducted by using Simulink of Matlab. It is indicated that this steering control strategy can reduce the average vehicle speed automatically to achieve the drivers expected steering radius exactly in the case of ensuring not exceeding the system pressure threshold and no sideslip.