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挖沙船主轴承温度过高可能是由于以下原因造成
挖沙船主轴承温度过高可能是由于以下原因造成：
(1)润滑油中断或油量严重不足。断油或少油的原因及处理办法与上面讨论的相同。
(2)润滑油过稠或过稀。主轴承产生的热量除少部分由金属传导出去外，大量的是靠润滑油带走。当润滑油过稠时，流动性很差，不能及时把热量带走，引起主轴承发热。当润滑油过稀时，不能形成液体摩擦的油膜，金屑直接摩擦，所以发热很快。
(4)铀瓦刮研不符合要求。轴瓦在刮研时，若瓦口刮研不够量，与中空轴颈配合过紧；瓦面与轴颈接触点过多，瓦面上未刮出油槽等，都会引起轴瓦发热。因为磨机整个转动部分的重量全部压在轴承上，轴颈对轴瓦的压力很大，当轴瓦与轴颈配合过紧，或瓦面与轴颈接触点过多或未留油槽时，润滑油无法进入接触面，起不到润滑作用。处理的办法是检查铀瓦刮研质量．重新刮研，直至符合技术要求为止。
(5)落人杂物。当矿浆或泥砂等杂物进入到轴颈与轴瓦的摩擦面，将严重破坏轴瓦与轴颈的配合．使轴瓦及轴颈表面拉槽，摩擦加剧，引起发热。处理的办法是消除杂物，重新刮研铀瓦。
(1)润滑油中断或油量严重不足。断油或少油的原因及处理办法与上面讨论的相同。
(2)润滑油过稠或过稀。主轴承产生的热量除少部分由金属传导出去外，大量的是靠润滑油带走。当润滑油过稠时，流动性很差，不能及时把热量带走，引起主轴承发热。当润滑油过稀时，不能形成液体摩擦的油膜，金屑直接摩擦，所以发热很快。
润滑油过稠或过稀是因为油的型号选用不当，或油的型号基本适合，但气温过低致使油的稠度升高．流动性差。处理的办法是重新选择润滑油，或停止供给冷却水或用加热器加热。
(3)润滑油变质。润滑油变质将失去其润滑性能，导致轴承发热。处理的方法除更换润滑油外．还应将润滑部位、油管、油箱等进行清洗。(4)铀瓦刮研不符合要求。轴瓦在刮研时，若瓦口刮研不够量，与中空轴颈配合过紧；瓦面与轴颈接触点过多，瓦面上未刮出油槽等，都会引起轴瓦发热。因为磨机整个转动部分的重量全部压在轴承上，轴颈对轴瓦的压力很大，当轴瓦与轴颈配合过紧，或瓦面与轴颈接触点过多或未留油槽时，润滑油无法进入接触面，起不到润滑作用。处理的办法是检查铀瓦刮研质量．重新刮研，直至符合技术要求为止。
(5)落人杂物。当矿浆或泥砂等杂物进入到轴颈与轴瓦的摩擦面，将严重破坏轴瓦与轴颈的配合．使轴瓦及轴颈表面拉槽，摩擦加剧，引起发热。处理的办法是消除杂物，重新刮研铀瓦。
以上介绍的是挖沙船主轴承温度过高的原因，希望对大家有所帮助。
The excessive temperature of the bearing sand owner may be caused by the following reasons:
(1) Oil interruption or serious shortage of oil. The reasons and treatments of oil breaking or less oil are the same as discussed above.
(2) Lubricating oil is too thick or too thin. The heat produced by the main bearings is carried out by the metal, and a lot of it is taken away by lubricating oil. When the lubricating oil is too thick, the fluidity is poor, can not take the heat away promptly, cause the main bearing fever. When the lubricating oil is too dilute, it can not form the liquid friction oil film, the gold chips directly rub, so fever quickly.
Lubricating oil is too thick or too dilute because the oil model is inappropriate, or the model of oil is basically suitable, but the temperature is too low to increase the consistency of oil. Poor liquidity. The solution is to re-select lubricating oils, or stop supplying cooling water or heating with heaters.
(3) Lubricating oil metamorphism. Lubricating oil deterioration will lose its lubrication performance, resulting in bearing fever. The method is treated except replacing lubricating oil. The lubrication parts, tubing, fuel tanks should also be cleaned.
(4) The Uranium tile scratch does not meet the requirements. Bearing in the scraping grind, if the tile mouth scraping insufficient quantity, with the hollow shaft neck tight; tile surface and axial neck contact point too much, tile surface not scraping oil trough, will cause the bearing heat. Because the grinding machine of the whole rotation part of the weight of the bearings on the bearing, the axial neck to the bearing pressure is very large, when the bearing with the shaft neck tight, or the tile surface with the shaft contact point too much or not leaving the oil trough, lubricating oil can not enter the contact surface, not to play the The method is to inspect the uranium tile scraping quality. Scratch the grind until it meets the technical requirements.
(5) Litter. When the pulp or mud sand and other debris enters the friction surface of the shaft neck and the bearing, it will severely destroy the match of the bearing and axle neck. The friction is aggravated by the pulling groove of the bearing and shaft neck surface, causing the fever. The solution is to eliminate debris and scratch uranium tiles.
The above mentioned is the reason for the high temperature of the sand owner bearing, hoping to help you.