制造有限公司根据风机主轴的特性，冷凝器深孔钻镗床要加高床头风力发电机的主轴既有径向偏移，又有轴向偏移。实际上，主轴的轴向偏移直接传递到齿轮箱的输入轴。除非对调心滚子轴承的径向游隙，轴向游隙控制以及行星轮的定位做特别处理，否则轴向的偏移会对齿轮箱里行星架支撑轴承产生不利的影响。主轴的轴向偏移取决于系统的刚性和固定端轴承的内部游隙。无锡风机主轴是连接风机风翅与风机底座的重要部件，风机主轴是中空的，风机主轴的材质是不锈钢的，内孔加工比较困难，现在对风机主轴的加工设备是深孔钻镗床，固定端轴承（双列圆锥滚子轴承或调心滚子轴承）同时承受径向力和轴向力，而浮动端轴承（圆柱滚子轴承或调心滚子轴承）只承受径向力。因为轴向力作用方向是从转子端指向齿轮箱端的，因此不管是使用双列圆锥滚子轴承还是使用调心滚子轴承，只有靠近齿轮箱一端的一列滚子承受所有的轴向力。在固定端使用预紧的双列圆锥滚子轴承后，主轴右端的轴向偏移几乎比使用调心滚子轴承时减少4倍。减小轴向偏移可以减小轴向挤压齿轮箱输入轴的风险，这非常重要在一端固定、一端浮动的轴承布置情况下。（中译英）Manufacturing company limited according to the characteristics of the fan spindle deep hole boring, heightening the bed main shaft of wind power generator with radial deviation, and the axial offset. In fact, the spindle is axially offset are passed directly to the input shaft of the gear box. Unless the self-aligning roller bearing radial clearance, axial clearance control and planetary wheel positioning for special treatment, or axial offset on the gear box planetary frame supporting bearing adverse impact. The spindle is axially offset depends on system of rigid and fixed end bearing internal clearance. Wuxi wind machine spindle is connected with fan fin and fan base of important parts, fan shaft is hollow, the fan spindle is made of stainless steel, inner hole processing more difficult, now on the fan shaft processing equipment for deep hole drilling and boring, fixed end bearing ( double row tapered roller bearings or roller bearing ) also bear the radial force and axial force, while the floating end bearing ( cylindrical roller bearings or roller bearings) only bear the radial force. Because of the action of axial force direction is from the rotor end pointing to the gear box end, so that the use of double row tapered roller bearing spherical roller bearing is used, only near the end of the row of roller gear box bearing all axial force. In the fixed end use preload double row tapered roller bearing, spindle right end axial displacement than the use of spherical roller bearing is almost4 times less. Decreasing axial shift axial extrusion can reduce the input shaft of the gear box of the risk, which is very important in the end is fixed at one end, a floating bearing arrangement case.（图/文http://www.wxfengli.com/）