潜孔式弧形闸门支铰位置对启门力的影响分析  

Influence of the trunnion position on hoist force of submerged radial gate

作　　者：郑圣义[1] 牛继业[1] 滕楷 

机构地区：[1]河海大学水利部水工金属结构安全检测中心,江苏南京210098

出　　处：《人民长江》2014年第7期103-106,共4页Yangtze River

摘　　要：弧形闸门启门力是启闭机的一项重要参数，对应于不同的闸门支铰位置，闸门开启过程中启门力过程曲线亦会不同。为解决弧形闸门支铰选定在什么位置才能使闸门启门力最小的问题，以弧形闸门倾斜角为变量（代表不同支铰位置），从0°～7５°，每次递增5°，总共16种不同布置状况，分别计算启门力，并绘制启门力过程曲线进行比较。结果表明：当弧形闸门倾斜角为45°～５５°时，启门力最小，且启门力过程曲线平滑，波动幅度小，适合选作支铰位置。详细介绍了分析过程，可供闸门设计参考。Hoist force subject to different trunnion position is a significant parameter for hoist design, and the curve of hoist force would be different accordingly. For exploring the optimized trunnion position to reduce lifting force, a series of trial calcula-tions regarding the inclined angle of gate as a variable from 0°-75°with a increment of 5°（representing different trunnion posi-tion） were conducted to obtain the lifting force curve. It is illustrated that the minimum lifting force appears in the inclined angle range of 45°-55°;, at the same time the lifting force curve is smooth with smaller fluctuation, representing the best trunnion posi-tion.

关 键 词：支铰位置 最小启门力 潜孔式弧形闸门 

分 类 号：TV663[水利工程—水利水电工程]