扳手扭矩设置详解.ppt

操作失误导致螺栓断裂 螺栓断裂前 螺栓断裂后 螺栓断裂 在移除螺栓之前 最终断裂 螺栓断裂位置 螺栓扭矩测量 DIN 6796 锥形碟簧 该碟簧在两个连接体间的进行扩张时有效地补偿两片连接体间的连接力。 如何安装碟簧 正确方式 错误方式 标准8.8级螺栓推荐扭矩 推荐扭矩 一般紧固方式(干润滑, μtotal = 0.125): M8: 20 Nm M10: 40 Nm M12: 70 Nm DIN 43673碟簧 (油脂润滑, μtotal = 0.05): M8: 10 Nm M10: 20 Nm M12: 40 Nm The End * Safety is everyone’s responsibility → Employees must take on this responsibility – Vestas Safety principle nr. 4 ”working safely is a condition of employeement” must check the tool before use is responsible for removing damaged tool from the production It is YOUR responsibility!!! There will always be a risk of the wrench slipping and therefore a risk a of injury – BUT it is possible to minimize this risk by: Using the correct tool for the task Check the tool for damages before and after use – remove damaged tools Use the wrench correctly * Let the participants try to attach and detach an adapter with an adapter in good condition with an adapter in bad condition The purpose is to make sure everyone have ”hands-on” experience with the different feel between a worn out adapter and one in good condition. * Let the participants try to attach and detach an adapter with a torque wrench with a locking mechanism in good condition with a torque wrench with a locking mechanism in bad condition The purpose is to make sure everyone has ”hands-on” experience with the different feel between a worn out locking mechanism and one in good condition. * Let the participants try to spin a torque wrench around with a torque wrench with a ratchet in good condition with a torque wrench with a ratchet bad condition The purpose is to make sure everyone has ”hands-on” experience with the different feel between a ratchet that works and one that doesn’t work properly. * Pass around examples on wrenches with broken handles The purpose is to let every one see types of broken handles and to increase their focus on checking the handle before use * Emphazise the employees’ responsibility Reme