堆垛机拨叉孔轴线位置度气动测量装置的设计

由于通用型手动检测拨叉孔轴线位置度的设备难以满足工厂的生产检验要求,高精度自动化检测设备已成为各个生产零部件企业检验产品的必要设备。本文针对某型堆垛机的零部件拨叉设计了拨叉孔轴线位置度的气动测量装置。基于气动测量原理和实际需要,进行了机械结构和系统软件程序设计,并通过系统仿真实验。结果表明,该测量装置的结构简单、使用方便、精度可靠,可以满足该型堆垛机在物流技术上的应用。

The Seasonal Variations of the Climatic Circulation of the Black Sea along the Axis of Divergence Zone

The spatial position, seasonal variability and intensity of the main flow and the cyclonic circulation of the Black Sea waters along the axis of the divergence were identified. Corresponding calculations were done with using of the dynamic method and based on the climate data set of temperature and salinity for the surface and intermediate layers of the Black Sea. The important role of spring floods on the rivers of the northern-western Black Sea in the development of the water circulation features was shown because this river＇s water and main Black Sea current interact with the periphery of the western and eastern cyclonic circulation. This process is dominated at the western part sea surface cyclone： in spring and at eastern, in summer and autumn. The flow rate and nature of seasonal migration cyclonic centers were estimated. The results of research are based on a relatively large scale （40＇ latitude and 60＇ longitude） averaging and we have identified the main area of water divergence. Small, localized areas of convergence and divergence of flow that are presented in the Black Sea were not included into the scope of our research.

浅谈型钢混凝土柱施工质量控制

型钢柱与周边支设安装的竖向结构模板之间的间距较小,施工难度大。型钢柱的安装质量将直接影响后期柱筋绑扎、模板的安装、混凝土的浇筑。型钢柱中心骨架是型钢混凝土柱的核心受力部件,对垂直度要求非常高。