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目前国内一些厂家定型生产的和一些兄弟局自制的包裹分拣机,大多是“V”型托盘(或叫欧翼托盘)分拣机,其载包装置为“V”型托盘小车。而小车的动力来自链条、齿轮、减速器等组成的机械传动装置(动力源为电机)。由于“V”型托盘运行平稳,卸包迅速准确,链条驱动又能达到很高的运行速度,故这种结构的分拣机在国际国内获得了广泛地应用。据报道,在一些发达国家,这种机器有的已达到14,400件/小时或更高的分拣速度。但同是这种机器,在国内却远远达不到上述速度,据现有资料记载,最高的其理论速度也不过3,000～4,000件/小时,有的更低。为什么同是这种机器,在国内不但速度低,而且还普遍出现盘位利用率低、空盘运行多、噪音大等不正常现象呢?笔者认为有下列几个原因。
At present, some domestic manufacturers stereotypes and some self-made brotherhood parcel sorter, mostly “V” -type tray (or European-wing tray) sorter, the carrier device for the “V” -type pallet trolley. The car’s power comes from the chain, gear, reducer and other mechanical transmission (power source for the motor). Due to the smooth operation of the “V” type pallet, rapid and accurate unwinding of the pallet and the high driving speed of the chain drive, the sorter of this kind of structure has been widely applied both at home and abroad. It is reported that in some developed countries some of these machines have achieved a sorting speed of 14,400 pieces / hour or more. However, the same kind of machine is far from the above-mentioned speed in China. According to the available information, the highest theoretical speed is no less than 3,000 to 4,000 pieces / hour, and some are even lower. Why is this same machine, not only in the country at a low speed, but also generally appear low utilization of disk, empty disk operation, noise and other abnormal phenomenon? I think the following reasons.