角磨机使用安全.pptx

Grinding machine&wheelsMini-straight Grinder&Its compatible wheels RPM=18000第1页/共47页Grinding machine&wheelsPedestal GrinderRPM=2300第2页/共47页Grinding wheelBack flangeAdopter NutGrinderMounting of Depressed Centre wheel on Surface GrinderGuard第3页/共47页Grinding wheelAdopter NutGrinderUnsafe Method Mounting of Wheel on Surface GrinderThe back flange Not used第4页/共47页Grinding wheelBack flangeGrinderUnsafe Method Mounting of Wheel on Surface GrinderAdaptor nut not used第5页/共47页Grinding wheelBack flangeAdopter NutGrinderUnsafe Method Mounting of Wheel on Surface GrinderWheel used as support for paper wheel第6页/共47页Grinding wheelAdopter NutGrinder Unsafe Method Mounting of Wheel on Surface GrinderOld used wheel or Metal plates used in place of back flange第7页/共47页Grinding wheelBack flangeAdopter NutGrinderUnsafe Method Mounting of Wheel on Surface GrinderCut-off wheel is used instead of Depressed centre wheel 第8页/共47页Unsafe Method Mounting of Wheel on Surface GrinderM/c RPM 6600Wheel RPM 6500Grinding wheel RPM is less than RPM of the machine 第9页/共47页Grinding wheelBack flangeAdopter NutGrinderMounting of Depressed Centre wheel on Surface Grinder第10页/共47页Grinding machine&wheelsStraight Grinder RPM=5630第11页/共47页Grinding wheel flangeNutGrinderUnsafe method of mounting of wheel on Straight Grinder“D”d=D/3Guards第12页/共47页Grinding wheelGrinderMounting of Grinding wheel on Straight GrinderUsing flange on one side only 第13页/共47页GrinderMounting of Grinding wheel on Straight GrinderGrinderProviding smaller size of flanges Providing different size of flanges on both sides dD/3第14页/共47页GrinderMounting of Grinding wheel on Straight GrinderNut not mounted fully on the spindle of the grinder Guard missing第15页/共47页GrinderMounting of Grinding wheel on Straight GrinderFlanges are put in reverse way 第16页/共47页Grinding wheel flangeNutGrinderMounting of Grinding wheel on Straight Grinder“D”d=D/3第17页/共47页第18页/共47页第19页/共47页第20页/共47页Precautions Before&During UsageFlangesMountingMachineVisual InspectionLabelsSafety Devices第21页/共47页FLANGESFlanges are very importantBoth flanges DIA to be sameFlange DIA to be atleast 1/3 dia of wheelFlanges must be relieved第22页/共47页第23页/共47页第24页/共47页MOUNTINGWheel must easily fit on the spindle.MUST NOT BE LOOSEIt bore is tight keep the wheel aside.DO NOT TRY TO INCREASE BORE SIZE第25页/共47页第26页/共47页第27页/共47页第28页/共47页第29页/共47页第30页/共47页第31页/共47页MACHINEMachine should be well maintained.There should be no vibrationThere should be no belt slipageBearing should be in good condition第32页/共47页VISUAL INSPECTIONVisually inspect wheel for cracksCheck for damage during storage/transit/handlingDo not use such wheel第33页/共47页CHECK LABELSMaximum operating speed(MOS)is mentioned on the wheel.Ensure machine speed is less than MOSResin bonded wheels have expiry date.See that the expiry date has not passedRead safety and implement LOGOS on the label第34页/共47页第35页/共47页第36页/共47页第37页/共47页第38页/共47页第39页/共47页SAFETY DEVICESUse machine guardsUse Ear PlugUse Face shield第40页/共47页第41页/共47页第42页/共47页Most importantUse the wheel in the manner it is designed forIf correctly used they are very useful toolsIf incorrectly used “Make sure God is on your side”第43页/共47页第44页/共47页第45页/共47页第46页/共47页感谢您的观看。第47页/共47页