推荐回答（1个）
皮带式主轴用途非常广泛，小到小型加工中心，大到大型立式加工中心和龙门加工中心。皮带式主轴转速一般不会超过8000转，转速越大噪音越大，但是皮带式主轴力度比较大，非常适合重切削，所以被广泛的用于大型的加工中心之中。
皮带式主轴以高扭力之齿型皮带传动，不打滑，并可大幅度减低加工中心传动噪音及热量产生。
皮带式主轴的调节：
1、将头罩拆掉，用两个拇指捏皮带检查皮带是否松了。
2、如果皮带较松的话，将主轴电机板的四个螺丝松掉（松一点即可），然后将调整机构的锁紧螺母拧松进行调整，调整的适当即可（不能过紧）。
3、调好后将电机的四个螺丝拧紧，调整机构上的锁紧螺母锁死即可。
4、转动主轴看主轴转动的时候有没有异响，有的话继续调整，直到没有异响为止。
故障现象：主轴高速旋转时发热严重。
分析及处理过程：电主轴运转中的发热和温升问题始终是研究的焦点。电主轴单元的内部有两个主要热源：一是主轴轴承，另一个是内藏式主电动机。
电主轴单元最凸出的问题是内藏式主电动机的发热。由于主电动机旁边就是主轴轴承，如果主电动机的散热问题解决不好，还会影响机床工作的可靠性。主要的解决方法是采用循环冷却结构，分外循环和内循环两种，冷却介质可以是水或油，使电动机与前后轴承都能得到充分冷却。
主轴轴承是电主轴的核心支承，也是电主轴的主要热源之一。当前高速电主轴，大多数采用角接触陶瓷球轴承。因为陶瓷球轴承具有以下特点：①由于滚珠重量轻，离心力小，动摩擦力矩小。②因温升引起的热膨胀小，使轴承的预紧力稳定。③弹性变形量小，刚度高，寿命长。由于电主轴的运转速度高，因此对主轴轴承的动态、热态性能有严格要求。合理的预紧力，良好而充分的润滑是保证主轴正常运转的必要条件。采用油雾润滑，雾化发生器进气压为0.25~0.3MPa，选用20#透平油，油滴速度控制在80~100滴/min。润滑油雾在充分润滑轴承的同时，还带走了大量的热量。前后轴承的润滑油分配是非常重要的问题，必须加以严格控制。进气口截面大于前后喷油口截面的总和，排气应顺畅，各喷油小孔的喷射角与轴线呈15o夹角，使油雾直接喷入轴承工作区。
由于电主轴是高速精密元件，定期维护是非常有必要的。电主轴定期维护如下：
1、电主轴的轴向跳动一般要求为0.002mm(2μm)，每年检测2次。
2、电主轴内锥孔的径向跳动一般要求为0.002mm(2μm)，每年检测2次。
3、电主轴芯棒远端(250mm)径向跳动一般要求为：0.012mm(12μm)，每年检测2次。
4、蝶形弹簧的涨紧力要求为：16~27KN(以HSK63为例)每年检测2次。
5、拉刀杆松刀时伸出的距离为：10.5±0.1mm(以HSK63为例)每年检测4次。
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