Wilkinson T L, Beer S R, Field W E
American Society of Safety Engineers, Des Plaines, Illinois, USA.
J Agric Saf Health. 2005 Aug;11(3):301-14.
Prior studies at Purdue University have shown that PTO entanglements occur most frequently on portable grain augers. A research project was conducted to measure operator exposure to PTO components and document work patterns during the use of grain augers. Information on the methodologies used to measure operator exposure is presented along with data on exposure to conventional grain augers while unloading from trucks and wagons, extended dump hopper augers, and swing-away hopper augers. It was found that operators had a higher exposure time to operating PTO components when the driveline was located on the right side of the grain auger, as one stands facing the hopper end of the auger, than on the left side of the grain auger when using conventional grain augers and grain trucks. It was determined that this added exposure was due to the position of the driver's door of the truck, the natural path of the driver from the operator's seat to the rear of the truck, and the movement of the truck body into the workspace when tilted. Of all scenarios examined, operators had the highest exposure time when using conventional grain augers and gravity-flow grain wagons. Operators had no recorded exposure time when operating swing-away hopper augers. Recommendations were made based on the observations of this study for reducing operator exposure through increased awareness of hazards and reconfiguration of the way augers are incorporated into grain handling operations.
普渡大学之前的研究表明，动力输出轴缠绕最常发生在便携式谷物螺旋输送器上。开展了一个研究项目，以测量操作人员接触动力输出轴部件的情况，并记录使用谷物螺旋输送器期间的工作模式。本文介绍了用于测量操作人员接触情况的方法信息，以及从卡车和货车卸载时使用传统谷物螺旋输送器、加长倾卸斗螺旋输送器和旋转式倾卸斗螺旋输送器时的接触数据。研究发现，当动力传动系统位于谷物螺旋输送器右侧（即操作人员面对螺旋输送器料斗端站立时），与使用传统谷物螺旋输送器和谷物卡车时动力传动系统位于螺旋输送器左侧相比，操作人员接触运转中动力输出轴部件的时间更长。经判定，这种额外的接触是由于卡车驾驶门的位置、驾驶员从操作员座位到卡车后部的自然路径，以及卡车车身倾斜时进入工作区的移动造成的。在所有检查的场景中，操作人员使用传统谷物螺旋输送器和重力自流谷物货车时接触时间最长。操作人员操作旋转式倾卸斗螺旋输送器时没有记录到接触时间。基于本研究的观察结果，提出了相关建议，以通过提高对危险的认识和重新配置螺旋输送器纳入谷物处理作业的方式来减少操作人员的接触。
