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水轮发电机的推力轴承可称为电机机械部分的心脏。推力轴承设计制造的好坏,小仅关系到机组的正常运行,而且还影响出力和效率的充分发挥。因此,设计和制造好的推力轴承便成为电机行业的共同任务。近年来,我国高水头机组日益增多,单机容量日趋增大。由于高水头机组具有转速高、水推力大、体积小等特点。所以随着推力负荷和线速度的增加,在机组体积小的条件下进行设计变得更困难。正常的推力轴承运行温度一般在45～65℃范围内,以55℃左右温度为最理想。轴瓦的数目对中小型机组一般是8～14块。因此在一定结构条件范围下,选择好高水头机组的推力轴承尺寸、轴瓦的大小、数目和支撑形式以及冷却方式等问题就显得更重要。加之西南地区水质成份复杂,不仅水中含有大量泥砂,而且水中还有定量的碳藏钙。这些物
Hydrodynamic thrust bearings can be called the heart of the mechanical part of the motor. Thrust bearing design and manufacture of good or bad, small only relates to the normal operation of the unit, but also affect the output and efficiency give full play. Therefore, the design and manufacture of a good thrust bearing has become the common task of the motor industry. In recent years, China’s high-head unit is increasing, stand-alone capacity is increasing. Due to high head unit with high speed, water thrust, small size and so on. Therefore, with the increase of thrust load and linear velocity, it becomes more difficult to design under the condition of small unit volume. Normal thrust bearing operating temperature is generally in the 45 ~ 65 ℃ range, the temperature of about 55 ℃ is the best. The number of bearings for small and medium sized units is generally 8 to 14 blocks. Therefore, in a certain range of structural conditions, it is more important to choose the size of the thrust bearing, the size, the number of bearings and the form of support and the cooling method of the high head unit. Coupled with the complexity of the water quality in the southwestern region, not only is the water containing a large amount of silt, but also a quantitative amount of carbon stored in the water. These things