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介绍了一种新型钢板剪切机,该机具有单轴非对称、负偏置结构。对非对称前后的钢板剪切力、连杆力、保持剪刃间隙恒定的后滑道推力进行了分析对比,并推导了非对称公式;对负偏置结构力学特性进行了分析,给出了负偏置范围的确定方法。理论分析结果和现场钢板剪切质量表明,非对称、负偏置结构对改善钢板剪切质量、提高圆弧剪刃寿命具有重要的意义。
A new type of steel plate shearing machine is introduced, which has a uniaxial asymmetric and negatively biased structure. The shear force of the steel plate before and after the asymmetry, the connecting rod force and the thrust of the rear slide that keeps the clearance of the cutting edge constant are analyzed and compared, and the asymmetric formula is deduced. The mechanical characteristics of the negative bias structure are analyzed, Determination of negative bias range. The results of theoretical analysis and on-site shearing quality show that the asymmetric and negatively biased structure is of great significance to improve the shearing quality of the steel plate and improve the life of the circular arc cutting edge.