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双速离合器现已研究出能使一台压力机具有高、低速自由运转的双速离合器,所谓自由运转,就是在压力机的一次工作循环内,可以任意进行高、低速度的转换。因而,在装有双速离合器的压力机上,在一次工作循环内,能够一部分进行高速运转、其余部分采用低速运转,使用这样的双速离合器的目的,是为了在保持加工速度(进行加工时的速度,冲头接触坯料时的速度)不变情况下,缩短了工作循环的周期,提高生产率(指单位时间内的生产量)。在拉延、成型及靠压机的制动器进行大尺寸板材弯曲加工方面,想要加快生产速度,我们知道,就要提高压机的每分钟行程次数,但是,每分钟行程次数高于
Two-speed clutches have been developed to make a press with high and low speed free-running two-speed clutch, the so-called free-wheeling is in the press of a working cycle, you can arbitrarily high and low speed conversion. Therefore, in a press equipped with a two-speed clutch, a part of high-speed operation can be performed in one working cycle and the rest can be operated at a low speed. The purpose of using such a two-speed clutch is to maintain the processing speed Speed, the speed of the punch contact with the billet) unchanged, shorten the cycle of the work cycle and improve productivity (refers to the production per unit of time). We know that we need to increase the number of strokes per minute for the press in drawing, forming, and bending of presses by presses, to speed up the production of large-sized sheets, but the number of strokes per minute is higher than