Precautions for the use of double-end grinders


Double-end grinding machine series between the grinding wheel and the shaft can be fastened with screws or adhesive. The circular grinding wheel in the device should pay attention to the following points: the matching clearance between the inner hole of the grinding wheel of the double-end grinding machine and the journal of the connecting shaft should not be too large or too small. Too small, easy to crack the grinding wheel; too large, so that the grinding wheel focus and cause vibration.
 
The clearance between the grinding wheel and the joint shaft is related to the fastening method. When fastening with screws, it should not exceed 0.2mm, and when fastening with adhesive, it should not exceed 0.3mm. If the gap is too large, a piece of paper can be inserted between the shaft and the inner hole of the grinding wheel to reduce the gap. The two end faces of the grinding wheel of the double-end grinding machine cannot directly contact the shoulder of the connecting shaft and the end face of the screw.
 
And should be padded into the yellow paper and other soft liner, the thickness of 0.2mm ~ 0.3mm is appropriate. This enables the internal grinding wheel to be evenly stressed and fastened firmly. The end face of the shaft and the end face of the screw of the grinding wheel of the double-end grinder cannot be uneven, and the contact surface cannot be too small, otherwise the friction area will be reduced and the fastening of the grinding wheel cannot be guaranteed.
 
The rotation direction of the fastening screw cannot be the same as that of the double-end grinding wheel, otherwise the grinding wheel will automatically loosen under the action of the grinding force. At present, China's consumption of double-end grinding machine and universal foreign aid grinding, grinding wheel rotation direction is counterclockwise, therefore, the direction of the fastening screw should be right-handed.

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