Electrical network considering the environmental temperature 40 ℃, the highest temperature motor work can't exceed 120/130 ℃. Bearing temperature is highest promised to 95 degrees. - a, bearing temperature standards1, GB32154 pump bearing temperature standards. 4. 1 pump during operation, the highest temperature bearing does not exceed 80 ℃ 2, JB/T52943. 2. 9. 2 bearing temperature rise shall not go beyond the environment temperature of 40, the highest temperature shall not exceed 80 ℃ 3, JB/T64394. 3. 3 pump in rules under the condition of work, built in the bearing place outside appearance temperature should not be higher than the medium temperature 20 ℃, the highest temperature is not higher than 80 ℃. Mounted bearings in external appearance should not be high temperature 40 ℃ ambient temperature. The highest temperature is not higher than 80 ℃ 4, JB/T72555. 15. The use of three bearing temperature. Bearing temperature rise shall not go beyond the environment temperature 35 ℃, the highest temperature shall not exceed 75 ℃ 5, JB/T77437. 16. 4 bearing temperature rise shall not go beyond the environment temperature 40 ℃, the highest temperature shall not exceed 80 ℃, JB/T86444 6. 14 bearing temperature rise shall not go beyond the environment temperature 35 ℃, the highest temperature shall not exceed 80 ℃, temperature of motor bearing rules, the cause of the abnormal and handling procedures, rolling bearing does not exceed 95 ℃, the highest temperature sliding bearing the highest temperature does not exceed 80 ℃. And are no more than 55 ℃ temperature (Temperature rise of bearing temperature minus the test ambient temperature)； (1)Reason: shaft bending, the centerline to calls. Processing; From the beginning to find center. (2)Reason: the roots go screw loose. Processing: tighten the foundation screw. (3)Reason: lubricating oil is not clean. Processing: replace lubricating oil. (4)Reason: lubricating oil use time is too long, not replace. Handling: wash bearing, replace lubricating oil. (5)Reason: in the ball or roller bearing damage. Processing: replace new bearing. In accordance with national standards, assessment of class F insulation class B, motor temperature control at 80 k (Resistance method)，90K(Element method)。 Considering the environment temperature 40 ℃, the highest temperature motor work can't exceed 120/130 ℃. Bearing temperature is highest promised to 95 degrees. The temperature of the measurement of bearing outside appearance with infrared detection gun, experience, 4 pole motor can not exceed 70 ℃ high temperature. Don't need to monitor for motor ontology. Machine production is completed, the general situation, his temperature is fixed, basically will not change or growth as the motor work attack. Detection and bearing is wearing parts, demand.
