采埃孚在上海生产橡胶金属减震器

据美国《橡胶世界》报道,全球三大橡胶一金属组件生产商之一的德国采埃孚集团,在上海青浦工业园区新建的一家独资子公司日前正式开业。     

城市轨道交通用减震扣件的试验方法

减震扣件是一种有效的城市轨道交通减震降噪产品,其主要性能要求包括安全性能、减震性能、绝缘性能和稳定性,主要性能检测项目包括纵向阻力测试、刚度(包括垂向静刚度和垂向动刚度)测试、冲击载荷衰减测试和疲劳试验等.目前国外相关技术已比较成熟,但国内仍处于研究的初级阶段,需尽快提高我国减震扣件的整体技术水平,达到以工程分析指导设计的水平,并逐步建立起完整、统一的性能测试标准体系.     

汽车减震器扭转疲劳试验机改进设计

介绍一种新型汽车减震器扭转疲劳试验机的结构和功能，较详细介绍主要结构和单片机测控系统。     

PARAMETRIC MATCHING SELECTION OF MULTI-MEDIUM COUPLING SHOCK ABSORBER

To achieve the dual demand of resisting violent impact and attenuating vibration in vibration-impact-safety of protection for precision equipment such as MEMS packaging system, a theoretical mathematical model of multi-medium coupling shock absorber is presented. The coupling of quadratic damping, linear damping, Coulomb damping and nonlinear spring are considered in the model. The approximate theoretical calculating formulae are deduced by introducing transformation-tactics. The contrasts between the analytical results and numerical integration results are developed. The resisting impact characteristics of the model are also analyzed in progress. In the meantime, the optimum model of the parameters matching selection for design of the shock absorber is built. The example design is illustrated to confirm the validity of the modeling method and the theoretical solution.     

非标准椭圆型线加工方法的改进

我分厂是负责工厂工模具制造的主力分厂。前一段时间,在十几副摩托车减震器金属模具生产制造中,针对摩托车减震器金属产品系列化的特点,结合每一副模具型腔所涉及到部分特殊非标准椭圆形状(见图1)给加工带来许多困难,为了满足提高生产效率和金属模具按期交货要求,经过多次摸     

橡胶小辞典4条

J型橡胶减震器　WJ typerubbermounting　是通用性较强的橡胶减震器。亦称“万能垫” ,具有 4种不同直径、不同高度的圆柱凸台 ,上下两面交叉配置。可承受任意方向的载荷 ,吸收任意方向的振动。受横向压力时不会产生滑动。因而不必采取措施防止机器水平移动 ,省去庞大基础费用。此产品耐热、耐油 ,使用方便。有WJ 40 ,WJ 60 ,WJ 85和WJ 90共 4种型号。缓冲橡胶制品　rubbershockabsorber　橡胶减震制品的一类。是以吸收冲击能量、缓解冲击作用为主要目的的橡胶制品。包括各种橡胶缓冲器、缓冲垫等。如汽车发动机前后悬置垫、钢板弹簧缓…     

安装新型铅减震器的500kV氧化锌避雷器抗震

500kV氧化锌避雷器为重心较高的单级电器设备,在地震作用下弯曲变形占据较大的比例,而其本体材料为脆性材料且根部承受弯矩的能力有限,因此这类电器设备在强烈地震作用下极易损坏.为避免地震对这类设备的损坏,在避雷器底部安装了新型铅减震器.对500kV氧化锌避雷器三维有限元分析表明:新型铅减震器不仅可以降低这种避雷器顶部的加速度反应和位移反应,而且使其瓷套管底部应力减少61%以上,且输入地震动越强,减震效果越明显;此外,新型铅减震器可为避雷器提供一定的初始刚度.计算与试验结果比较吻合,证明所建立的三维有限元避雷器模型是合理的.     

Water Hammer Model of Shock Absorber Throttle Slice

In allusion to easy invalidation of damping valve in vehicle shock absorber caused by the impact from the road surface, the importance of the study of damping valve water hammer pressure is presented. The physical model of damping valve with the circle throttle slice is established. The time for the throttle slice deformation is studied by using the finite software, and the laws that how the structure parameters affect the deformation time are obtained. Combining the theory of water hammer, the water hammer initial and boundary condition of the damping valve is deduced, and the water hammer model of throttle slice is established. The analysis of simulation results indicates that the water hammer pressure amplitude and the amount of water hammer oscillation period can be reduced and the dependability of the valve can be enhanced by modifying the structure parameters and aperture width between slice and valve body.     

扭振减震器的压装方法

目前,汽车发动机曲轴皮带轮由刚性结构逐步改进为软性联接形式——曲轴扭振减震器,这样、既可以防止曲轴因额外负载(发电机、气泵)造成局部弯曲,又可克服发动机在输出力矩过程中造成的振动。所以扭振减震器是关系到整车车况性能的一个重要零件,对发动机寿命起着重要作用,扭振减震器的压装用量直接影响其性能,是扭振减震器加工过程中最关键工序。