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首页> 外文会议>International Conference on Advances in Machining amp; Manufacturing Technology in China; 20070816-19; Harbin(CN) >Research on Asymmetric and Negative offset Mechanism of Large-scale Steel Plate Rolling Shear
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Research on Asymmetric and Negative offset Mechanism of Large-scale Steel Plate Rolling Shear

机译：大型钢板轧制剪切机的非对称负偏移机理研究

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摘要

According to revised Cailikefu's rolling shear force formula, motion path equation of spatial seven-bar path is built, and mechanical model, with such new structural features as asymmetric and negative offset, is thus successfully established for 2800 mm heavy shear of some Iron&Steel Company. Shear force and bar force of steel plate, before and after adoption of asymmetric and negative offset structure, are analyzed, as well as horizontal force component of mechanism that influences pure rolling shear and back-wall push force that keeps blade clearance. The discovery is that back-wall push force could be kept large enough at rolling start-up (i.e. the time that the maximum rolling shear produces), meanwhile, back-wall push force is the most approximate to side forces with adoption of 60mm～100mm offset. Theoretical results and on-site shear quality both indicate that new structural features such as asymmetric and negative offset plays an important role in ensuring pure rolling shear and keeping blade clearance constant, which provide an effective means to improve quality of steel plate.
机译：根据修正的Cailikefu的滚动剪切力公式，建立了空间七杆路径的运动路径方程，从而成功地为某钢铁公司的2800 mm重剪建立了具有不对称和负偏移等新结构特征的力学模型。分析了采用非对称负偏距结构前后的钢板剪切力和钢筋，以及影响纯轧制剪切力的机构的水平力分量和保持叶片间隙的后壁推力。研究发现，在轧制开始时（即产生最大轧制剪切的时间），可以将后壁推力保持足够大，同时，采用60mm时，后壁推力最接近于侧向力。 100mm偏移量。理论结果和现场剪切质量都表明，不对称和负偏移等新的结构特征在确保纯轧制剪切和保持叶片间隙恒定方面起着重要作用，这为提高钢板质量提供了有效的手段。

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