投梭运动规律对织机噪声的影响

本文分析1511M型44英寸有梭织机的投梭机构,将投梭机构者看成二自由度系统,同时,考虑主要振动及声辐射部件——投梭棒和侧板的阻尼,并对下投梭机构进行了动态分析.作者认为投梭的皮结运动规律对织机投梭噪声影响较大,分析了三种皮结运动规律,设计了对应的三种投梭鼻进行实际测量及分析,指出了选择投梭皮结运动规律应注意的几个问题;首次运用解析法求解投梭鼻的廓线.     

齿轮箱传动的噪声和防治

作者根据近年来在降低齿轮箱噪声方面的工作和实践,参阅国内外有关文献,总结了影响机械传动噪声中的各种因素——重点是有关齿轮噪声的影响原因和一般规律。同时还分析了齿轮箱噪声的传导及幅射,简明地介绍了在实践中行之有效的主噪声源探查方法。最后,还详尽地提出了控制齿轮箱噪声的有关设计和工艺措施,列举了一些生产工厂降低噪声的实例。     

NOISE OF THE RING SPINNING FRAME AND ITS CONTROL

In this paper, we have made a study on the noise of ring spinning frame by analysing the noise radiating mechanism and the frequency spectrum of its main noise sources, such as the spindle system and the transmission gear trains of the ring frame. Finally, three measures for reducing its noise are suggested: (1) using upper elastic bearing for the spindle structure, (2) using vibration isolating washers for the spindle support, and (3) improving the gear transmission structure design in the headstock of the frame.