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Bearing noise check to determine the maintenance
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| Time：2016.11.17 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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After the installation of deep groove ball bearings, in order to check whether the installation is correct, to check the operation. Small machines can be rotated by hand to confirm smooth rotation. Check the project because of foreign objects, scars, indentation caused by poor operation, due to poor installation, poor processing of the mounting seat torque instability, due to clearance is too small, the installation error, sealing friction caused by excessive torque Wait. If no abnormalities can start power operation. Large machinery can not be manually rotated, so no-load start immediately cut off the power, mechanical idling, check for vibration, noise, rotating parts have contact, etc., to confirm no abnormalities, into the power operation. Power operation, starting from the no-load low-speed, slowly raised to the rated conditions of the rated operation. Check the test run for the matter, whether there is abnormal sound, bearing temperature changes, lubricant leakage or discoloration and so on. If abnormal, should immediately stop the operation, check the machinery, if necessary, to remove the bearing inspection.
Temperature, generally based on the external temperature of the bearing seat speculation. But the use of direct measurement of oil hole deep groove ball bearing outer ring temperature is more accurate. Bearing temperature, starting from the operation began to rise, usually 1 to 2 hours after the temperature stability. If the bearing is installed poorly, the temperature will rise sharply, abnormal temperature. The reasons such as too much lubricant, bearing clearance is too small, poor installation, sealing device friction is too large and so on. High-speed rotation of the occasion, structure, lubrication mode selection error is the reason.
1) bearing kerosene washed, pressed into the bearing, the outer ring of the bearing roller to fill the Shell III Lithium Grease to two-thirds full, evenly coated with a net hand, fitted with deep groove ball bearings gland, with Add bolts, anti-loose rubber fastening bolts, pressing the bearing gland;
2) bearings for the inner sleeve separable cylindrical roller bearings, bearings should be set on the shaft and in place;
3) The bearing housing installed on the chassis, if the grease filling hole, must be aligned. Tighten the bearing seat with the fastening bolts of the anti-loose rubber bolts;
4) The eccentric block inside and outside the shaft in place and in place, a shaft key shall be keyed into the keyway and then install the outer eccentric block, the shaft with the retaining ring mounted on the shaft;
5) Tighten the eccentric block fastening bolts, turn the adjustable eccentric block, to reach the pre-removal angle position and tighten its fastening bolts. After completion of the above assembly, the shaft should have a certain axial string;
6) Vibration on the motor at both ends of the protective cover, fastened with screws.
Imported bearings for the installation of the vibration motor and other aspects of the performance of the results are a certain change, but also from different angles to consider the form also has a certain effect of change, slowly for all aspects of the installation has also been A certain understanding of the.
The use of factors mainly refers to the installation adjustment, maintenance, repair, etc. meet the technical requirements. Installation conditions is one of the primary factors in the use of factors, deep groove ball bearings are often due to improper installation of the bearings caused by the force between the parts of the state changes in the abnormal state of the bearing in operation and early failure. According to the bearing installation, use, maintenance, maintenance of technical requirements, the operation of the deep groove ball bearings to withstand the load, speed, operating temperature, vibration, noise and lubrication conditions for monitoring and inspection, abnormal immediately find the reasons for adjustment , To return to normal. In addition, the quality of grease and the surrounding medium, the atmosphere is also important to analyze the test.
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