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以前,在设计密炼机时,转子的刚度一般是不进行计算的。随着密炼机容积的增大,转子转速的加快,上顶栓压力的提高,转子承受的载荷也随之加大,密炼机转子的强度和刚度问题日益引起人们的重视。近来,密炼机转子的密封部分广泛采用了反螺纹结构,根据流体动力学原理,反螺纹结构的密封能力与密封间隙的平方成反比。间隙加大,密封能力迅速下降:间隙太小,由于转子在炼胶时所产生的弹性变形可能会使得反螺纹部
In the past, when designing internal mixers, the stiffness of the rotor was generally not calculated. With the increase of the internal volume of the mixer, the speed of the rotor increases, the pressure on the top pin increases and the load on the rotor increases. The strength and stiffness of the rotor of the internal mixer have drawn increasing attention. Recently, a wide range of anti-thread structures have been used for the seal portion of the internal rotor of the mixer. According to the principle of fluid dynamics, the sealing ability of the anti-thread structure is inversely proportional to the square of the seal gap. Gap increases, the sealing capacity decreased rapidly: the gap is too small, due to the elastic deformation of the rotor in the glue may make the anti-threaded portion