Repair and Maintenance on Grinding Machine
Operate according to the operating method strictly. Each shift on the grinding machine should well do necessary inspection and cleaning work.
The bearings shall be dismounted and cleaned once after 1000 hours working, and the grease shall be replaced at the same time and lithium base molybdenum disulfide shall be applied. Only 1/2-3/4 space inside the bearing cap can be filled with grease. The old grease should be cleared up before adding new grease. If too much grease is filled for grinding machines, the bearings will be overheated. When the bearings are severely heated or the grease outflows out, stop the machine immediately to deal with the troubles.
The damaged or severely worn parts shall be repaired or replaced in time. If the rotor parts (except pins and hammers) are to be disassembled and replaced, balance calibration must be conducted after reassembling. The dynamic balance quality shall be verified in accordance with the balance accuracy grade G 6.3 for rigid rotors of National Standard GB9239-1988. Additionally, the difference between the total masses of the hammers of two symmetrical groups in radial direction should not exceed 5 g.
If the grinding machinery is to be halted for a long time, it must thoroughly cleaned both inside and outside so as to avoiding rusting and screen blockage.
Muyang machine is directly driven through an elastic pin coupling, which should be installed very carefully after maintenance or repairing so as to avoiding the effects of precision deviation on machine running (see Table 5). After installation, the coupling should be checked to ensure that the height deviation between the two halves of the coupling ＜0.2 mm, and the misalignment ＜1°and the clearance (S) between the two halves 4-6mm.
The article comes from : http://my.opera.com/nikilei123/blog/2013/08/21/repair-and-maintenance-on-grinding-machine
The bearings shall be dismounted and cleaned once after 1000 hours working, and the grease shall be replaced at the same time and lithium base molybdenum disulfide shall be applied. Only 1/2-3/4 space inside the bearing cap can be filled with grease. The old grease should be cleared up before adding new grease. If too much grease is filled for grinding machines, the bearings will be overheated. When the bearings are severely heated or the grease outflows out, stop the machine immediately to deal with the troubles.
The damaged or severely worn parts shall be repaired or replaced in time. If the rotor parts (except pins and hammers) are to be disassembled and replaced, balance calibration must be conducted after reassembling. The dynamic balance quality shall be verified in accordance with the balance accuracy grade G 6.3 for rigid rotors of National Standard GB9239-1988. Additionally, the difference between the total masses of the hammers of two symmetrical groups in radial direction should not exceed 5 g.
If the grinding machinery is to be halted for a long time, it must thoroughly cleaned both inside and outside so as to avoiding rusting and screen blockage.
Muyang machine is directly driven through an elastic pin coupling, which should be installed very carefully after maintenance or repairing so as to avoiding the effects of precision deviation on machine running (see Table 5). After installation, the coupling should be checked to ensure that the height deviation between the two halves of the coupling ＜0.2 mm, and the misalignment ＜1°and the clearance (S) between the two halves 4-6mm.
The article comes from : http://my.opera.com/nikilei123/blog/2013/08/21/repair-and-maintenance-on-grinding-machine
muyangsales - 21. Aug, 09:50
