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公开(公告)号：US4081707A
公开(公告)日：1978-03-28
申请号：US753181
申请日：1976-12-22
CPC分类号： F16C32/0489 , H01J35/103 , F16C2380/16
摘要： X-ray tubes with a magnetic bearing either have the disadvantage that the anode must be at earth potential, so that an asymmetric high-voltage supply is required or that -- in the case of a symmetric high voltage -- a relatively wide air gap is necessary which requires a high driving force and a bearing which has a certain amount of drawbacks. The invention provides an insulator between the anode which is at the high-voltage potential and the rotor which is at the earth potential, so that the air-gap between the rotor and stator can be relatively small and an effective magnetic bearing is possible.
摘要翻译： 具有磁性轴承的X射线管的缺点是阳极必须处于地电位，从而需要非对称高压电源，或者在对称高电压的情况下，需要相对宽的气隙 这需要具有一定量缺点的高驱动力和轴承。 本发明提供了处于高电压电位的阳极和处于地电位的转子之间的绝缘体，使得转子和定子之间的气隙可以相对较小并且有效的磁轴承是可能的。
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公开(公告)号：US4024424A
公开(公告)日：1977-05-17
申请号：US632587
申请日：1975-11-17
CPC分类号： H01J35/101 , H01J35/103 , H01J2235/1026
摘要： A rotary anode X-ray tube wherein the anode carries the high voltage during operation; to achieve shorter acceleration times of the rotor, an insulator is provided between the rotor and the anode disc so that only a minimum air gap is required between the rotor and the stator.
摘要翻译： 一种旋转阳极X射线管，其中阳极在运行期间承受高电压; 为了实现转子的较短的加速时间，在转子和阳极盘之间设置绝缘体，使得在转子和定子之间仅需要最小的气隙。
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公开(公告)号：US4115718A
公开(公告)日：1978-09-19
申请号：US776260
申请日：1977-03-10
申请人： Harry Eggelsmann
发明人： Harry Eggelsmann
IPC分类号： H01J35/10
CPC分类号： H01J35/101 , H01J2235/1013
摘要： In rotary anodes which are journalled on two sides a problem occurs, notably as regards the bearing which is arranged on the side of the anode disc which is remote from the rotor. The problem involves excessive discharge of heat via the shaft and the bearing. A possibility of reducing the quantity of heat applied to the bearing consists in the increasing of the length of the anode shaft to increase the heat resistance. However, the length of the X-ray tube is then also increased. The invention provides a combination of smaller length, substantially free choice of the material of the anode shaft and hence overcritical speeds for the tube during operation by forming the anode shaft as a hollow rotor shaft coupled to the anode disc and a further shaft journalled at both ends to the respective bearings and connected to the hollow shaft.
摘要翻译： 在双侧旋转的旋转阳极中，出现问题，特别是关于布置在远离转子的阳极盘侧的轴承。 该问题涉及通过轴和轴承过度排放热量。 减少施加到轴承的热量的可能性在于增加阳极轴的长度以增加耐热性。 然而，X射线管的长度然后也增加。 本发明提供了较小的长度，基本上可自由选择阳极轴的材料的组合，因此通过将阳极轴形成为连接到阳极盘的中空转子轴以及另外轴在两个轴 端到相应的轴承并连接到空心轴。
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