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文章从分析转键离合器和操纵器结构参数与制动器制动角的关系入手,导出了制动角的理论计算公式,该公式给出了制动角与离合器和操纵器结构参数间的简明关系。应用该公式对现有压力机制动器的制动角进行核算,结果表明实际制动角基本满足“给定10°”的设计条件,且发现制动角主要由操纵凸轮退让量决定,因而提出在这类结构中按“制动角完全由凸轮退让量决定”来设计离合器和操纵器的设想,并探讨了相应的设计方法。
Based on the analysis of the relationship between the structural parameters of the key clutch and the manipulator and the braking angle of the brake, the article deduces the theoretical calculation formula of the braking angle. The formula gives the concise relationship between the braking angle and the structural parameters of the clutch and the manipulator. The formula is used to calculate the braking angle of the existing press brakes. The results show that the actual braking angle basically satisfies the design condition of “given 10 °”, and the braking angle is found to be mainly determined by the amount of cam concession. Therefore, In this kind of structure, the design of the clutch and the manipulator is designed according to “the brake angle is completely determined by the cam withdrawal” and the corresponding design method is discussed.