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Wheel machine note
Attention to the installation of the grinding wheel
The use of grinding wheel has a certain risk. For everyone's safety, the following list of the use of the notes:
The grinding wheel machine is one of the most commonly used machine equipment in the machinery factory. Its installation is reasonable, whether it is in accordance with the safety requirement. These problems are directly related to the personal safety of every worker, so we must pay attention to the practical use.
1 points for attention in the installation process
When installing the first to secure the quality of grinding wheel were detected, methods, with nylon hammer (pen) tapping the wheel side, crisp sound is no problem.
Positioning problem of the wheel machine is installed in any position, is the first problem we should consider in the installation process, only the selection of reasonable and appropriate position, we can carry out other work. The grinding wheel machine is forbidden to be installed in front of the equipment and operation personnel or often someone in the past. If you do not set the limits of the plant can not set up the special grinding wheel machine room, should be installed in the front of the sand turbine is not less than 1.8m height of the protective gear board, and the board is required to be effective.
The unbalance of the grinding wheel is mainly caused by the manufacture and the installation of the grinding wheel, which is not coincident with the rotation axis. The harm caused by the imbalance is mainly manifested in two aspects, on the one hand in wheel rotates at a high speed, causing them to vibrate, easy cause workpiece surface to produce a polygonal oscillation mark; on the other hand, the imbalance in accelerated the vibration of the shaft and bearing wear, serious will cause the wheel broken, and even cause accidents.
The problem of matching mainly refers to the problem of the grinding wheel chuck and supporting the installation of. In accordance with the standard requirements, the grinding wheel chuck diameter shall not be less than is mounted wheel diameter of 1 / 3 and corresponding provisions of grinding wheel wear to diameter ratio chuck diameter of 10 mm should be replaced with new grinding wheel. So that there is a matching problem of a chuck and a grinding wheel, otherwise it will appear such circumstance, "big horse drawn cart cause a waste of equipment and materials;" small horse drawn carts "and does not meet the safety requirements, easy to create adults accident. Therefore, reasonable match of the chuck and the grinding wheel, on the one hand can save equipment, cheyo materials; on the other hand and in conformity with the safety requirements. In addition, between the grinding wheel and the chuck also should be equipped with diameter greater than the diameter of the chuck 2mm, thickness of 1mm~2mm cushion.
Protection shield is sand turbine the main protection device, its role is: when grinding wheel at work for some reason failure to effectively covering the wheel fragments, ensure personnel safety. Wheel shield of the shape of a circular and square two, the maximum opening angle does not allow more than 90 degrees; protective cover of the material is not less than 415N/mm2 of the tensile strength of steel. When the new grinding wheel is replaced, the protective cover is installed to be firm and reliable, and the protective cover can not be removed or discarded at will.
Block Qiao panel is grinder main door accessories of protective cover in above the horizontal spindle surface opening is greater than or equal to 30 (must be set up for this device. Its main function is to cover the grinding process of flying debris, so as not to hurt the operator. It is installed on the protective cover and the width should be greater than the width of the wheel shield and should be firmly fixed on the shield. In addition, the gap between the surface of the grinding wheel and the baffle plate should be less than 6mm.
Bracket bracket problem bracket is one of the accessories used in the sand turbine. According to the requirements of the grinding wheel diameter in the 150mm above the sand turbine must be set up adjustable bracket. The distance between the grinding wheel and the bracket should be less than the minimum size of the 1/2, but the maximum should not exceed 3mm.
Grounding problem of the use of the power line, so the device must have a good shell grounding protection device. This is also one of the important factors that cause accidents.
The use of grinding wheel has a certain risk. For everyone's safety, the following list of the use of the notes:
The grinding wheel machine is one of the most commonly used machine equipment in the machinery factory. Its installation is reasonable, whether it is in accordance with the safety requirement. These problems are directly related to the personal safety of every worker, so we must pay attention to the practical use.
1 points for attention in the installation process
When installing the first to secure the quality of grinding wheel were detected, methods, with nylon hammer (pen) tapping the wheel side, crisp sound is no problem.
Positioning problem of the wheel machine is installed in any position, is the first problem we should consider in the installation process, only the selection of reasonable and appropriate position, we can carry out other work. The grinding wheel machine is forbidden to be installed in front of the equipment and operation personnel or often someone in the past. If you do not set the limits of the plant can not set up the special grinding wheel machine room, should be installed in the front of the sand turbine is not less than 1.8m height of the protective gear board, and the board is required to be effective.
The unbalance of the grinding wheel is mainly caused by the manufacture and the installation of the grinding wheel, which is not coincident with the rotation axis. The harm caused by the imbalance is mainly manifested in two aspects, on the one hand in wheel rotates at a high speed, causing them to vibrate, easy cause workpiece surface to produce a polygonal oscillation mark; on the other hand, the imbalance in accelerated the vibration of the shaft and bearing wear, serious will cause the wheel broken, and even cause accidents.
The problem of matching mainly refers to the problem of the grinding wheel chuck and supporting the installation of. In accordance with the standard requirements, the grinding wheel chuck diameter shall not be less than is mounted wheel diameter of 1 / 3 and corresponding provisions of grinding wheel wear to diameter ratio chuck diameter of 10 mm should be replaced with new grinding wheel. So that there is a matching problem of a chuck and a grinding wheel, otherwise it will appear such circumstance, "big horse drawn cart cause a waste of equipment and materials;" small horse drawn carts "and does not meet the safety requirements, easy to create adults accident. Therefore, reasonable match of the chuck and the grinding wheel, on the one hand can save equipment, cheyo materials; on the other hand and in conformity with the safety requirements. In addition, between the grinding wheel and the chuck also should be equipped with diameter greater than the diameter of the chuck 2mm, thickness of 1mm~2mm cushion.
Protection shield is sand turbine the main protection device, its role is: when grinding wheel at work for some reason failure to effectively covering the wheel fragments, ensure personnel safety. Wheel shield of the shape of a circular and square two, the maximum opening angle does not allow more than 90 degrees; protective cover of the material is not less than 415N/mm2 of the tensile strength of steel. When the new grinding wheel is replaced, the protective cover is installed to be firm and reliable, and the protective cover can not be removed or discarded at will.
Block Qiao panel is grinder main door accessories of protective cover in above the horizontal spindle surface opening is greater than or equal to 30 (must be set up for this device. Its main function is to cover the grinding process of flying debris, so as not to hurt the operator. It is installed on the protective cover and the width should be greater than the width of the wheel shield and should be firmly fixed on the shield. In addition, the gap between the surface of the grinding wheel and the baffle plate should be less than 6mm.
Bracket bracket problem bracket is one of the accessories used in the sand turbine. According to the requirements of the grinding wheel diameter in the 150mm above the sand turbine must be set up adjustable bracket. The distance between the grinding wheel and the bracket should be less than the minimum size of the 1/2, but the maximum should not exceed 3mm.
Grounding problem of the use of the power line, so the device must have a good shell grounding protection device. This is also one of the important factors that cause accidents.
