公开(公告)号：US08582722B2

公开(公告)日：2013-11-12

申请号：US12875559

申请日：2010-09-03

申请人： Chiharu Tadokoro ,  Yasutaka Ito ,  Hitoshi Hattori ,  Ryoichi Takahashi ,  Tetsuya Yonezawa ,  Hironori Nakamuta

发明人： Chiharu Tadokoro ,  Yasutaka Ito ,  Hitoshi Hattori ,  Ryoichi Takahashi ,  Tetsuya Yonezawa ,  Hironori Nakamuta

IPC分类号： H01J35/10

CPC分类号： H01J35/101 ,  H01J2235/106 ,  H01J2235/1086

摘要： A rotary anode X-ray tube apparatus according to an embodiment of the present invention includes a stationary shaft, a cooling bath that is provided in the stationary shaft, a rotary cylinder that is rotatably supported to the stationary shaft, a target that is provided in the rotary cylinder, a cathode that is disposed to face the target, and a vacuum enclosure that stores these components. The stationary shaft has a large-diameter portion provided in a portion thereof and is provided with a flow passage through which a cooling fluid flows. The cooling bath is provided by thinning the wall thickness of the large-diameter portion to increase the flow passage diameter of a portion of the flow passage. The rotary cylinder covers an area of the stationary shaft including the large-diameter portion through a liquid metal and is rotatably supported to the stationary shaft. The target has a hollow circular plate shape that is provided on an outer circumferential surface of the rotary cylinder. The vacuum enclosure stores the stationary shaft, the rotary cylinder, the target, and the cathode and supports the stationary shaft.

摘要翻译： 根据本发明实施例的旋转阳极X射线管装置包括固定轴，设置在固定轴中的冷却槽，可旋转地支撑在固定轴上的旋转圆筒，设置在 旋转圆筒，设置为面对靶的阴极和存储这些部件的真空外壳。 固定轴具有设置在其一部分中的大直径部分，并且设置有冷却流体流过的流动通道。 通过减薄大直径部分的壁厚来提供冷却浴，以增加流路的一部分的流路直径。 旋转圆筒通过液体金属覆盖包括大直径部分的固定轴的区域，并且可旋转地支撑在固定轴上。 目标具有设置在旋转圆筒的外周面上的中空圆板形状。 真空外壳存放固定轴，旋转圆筒，目标和阴极，并支撑固定轴。

公开(公告)号：US07801278B2

公开(公告)日：2010-09-21

申请号：US12408514

申请日：2009-03-20

申请人： Yasutaka Ito ,  Hitoshi Hattori ,  Yasuo Yoshii ,  Chiharu Tadokoro ,  Hironori Nakamuta ,  Tetsuya Yonezawa

发明人： Yasutaka Ito ,  Hitoshi Hattori ,  Yasuo Yoshii ,  Chiharu Tadokoro ,  Hironori Nakamuta ,  Tetsuya Yonezawa

IPC分类号： H01J35/00 ,  H01J35/10

CPC分类号： H01J35/105 ,  H01J35/101 ,  H01J2235/106 ,  H01J2235/1204

摘要： In an X-ray tube, a rotary anode formed into a hollow disk-like shape is fixedly supported by a rotating body formed into a hollow cylindrical shape. A fixed shaft has fixed ends, columnar bearing portions and a disk part, and a flow path of a cooling medium formed along a central axis thereof. The bearing portions are inserted into the rotating body with a first gap between the columnar bearing portion and the rotating body, so that the rotating body is rotatably supported. The disk part is arranged in the rotary anode with a second gap between the disk part and the rotary anode. The first and second gaps are filled with a lubricant, bearing grooves are formed in the bearing portion, thereby forming dynamic pressure bearings, and a center of gravity of the rotary anode is arranged between the first and second dynamic pressure bearings.

摘要翻译： 在X射线管中，形成为中空圆盘状的旋转阳极由形成为中空圆筒状的旋转体固定地支撑。 固定轴具有固定端，柱状承载部和盘部，以及沿其中心轴形成的冷却介质的流路。 轴承部分在圆柱形轴承部分和旋转体之间具有第一间隙而被插入到旋转体中，使得旋转体被可旋转地支撑。 盘部分布置在旋转阳极中，在盘部分和旋转阳极之间具有第二间隙。 第一和第二间隙填充有润滑剂，在轴承部分中形成轴承槽，从而形成动压轴承，并且旋转阳极的重心布置在第一和第二动压轴承之间。

公开(公告)号：US20090080616A1

公开(公告)日：2009-03-26

申请号：US12211721

申请日：2008-09-16

申请人： YASUO YOSHII ,  Chiharu Tadokoro ,  Yasutaka Ito ,  Hitoshi Hattori ,  Hironori Nakamuta ,  Tetsuya Yonezawa

发明人： YASUO YOSHII ,  Chiharu Tadokoro ,  Yasutaka Ito ,  Hitoshi Hattori ,  Hironori Nakamuta ,  Tetsuya Yonezawa

IPC分类号： H01J35/00

CPC分类号： H01J35/101 ,  H01J2235/106

摘要： In a rotary anode X-ray tube, a disc portion is fitted into a rotary anode with a first gap therebetween and a fixed shaft is fitted into a rotary shaft to support the anode with a second gap therebetween. The disc portion and the fixed shaft are formed integral with each other to have a hollow portion therein. A cooling liquid is allowed to flow through the hollow portion. A liquid metal is filled in the first and second gaps. Dynamic pressure type bearings is formed in the second gap. A passage is formed to directly communicate the first gap to the second gap, whereby the liquid metal being directly supplied from the second gap to the first gap. Thus, the liquid metal can be fed rapidly and surely into the gap between the anode target and a cooling vessel.

摘要翻译： 在旋转阳极X射线管中，将圆盘部分装配到旋转阳极中，其间具有第一间隙，并且将固定轴装配到旋转轴中以在其间具有第二间隙支撑阳极。 圆盘部分和固定轴彼此一体形成在其中具有中空部分。 使冷却液流过中空部。 液体金属填充在第一和第二间隙中。 在第二间隙中形成动压型轴承。 形成通道以将第一间隙直接连通到第二间隙，从而将液态金属从第二间隙直接供应到第一间隙。 因此，可以将液体金属快速且可靠地进料到阳极靶和冷却容器之间的间隙中。

公开(公告)号：US07746982B2

公开(公告)日：2010-06-29

申请号：US12211721

申请日：2008-09-16

申请人： Yasuo Yoshii ,  Chiharu Tadokoro ,  Yasutaka Ito ,  Hitoshi Hattori ,  Hironori Nakamuta ,  Tetsuya Yonezawa

发明人： Yasuo Yoshii ,  Chiharu Tadokoro ,  Yasutaka Ito ,  Hitoshi Hattori ,  Hironori Nakamuta ,  Tetsuya Yonezawa

IPC分类号： H01J35/10 ,  H01J35/26

CPC分类号： H01J35/101 ,  H01J2235/106

摘要： In a rotary anode X-ray tube, a disc portion is fitted into a rotary anode with a first gap therebetween and a fixed shaft is fitted into a rotary shaft to support the anode with a second gap therebetween. The disc portion and the fixed shaft are formed integral with each other to have a hollow portion therein. A cooling liquid is allowed to flow through the hollow portion. A liquid metal is filled in the first and second gaps. Dynamic pressure type bearings is formed in the second gap. A passage is formed to directly communicate the first gap to the second gap, whereby the liquid metal being directly supplied from the second gap to the first gap. Thus, the liquid metal can be fed rapidly and surely into the gap between the anode target and a cooling vessel.

摘要翻译： 在旋转阳极X射线管中，将圆盘部分装配到旋转阳极中，其间具有第一间隙，并且将固定轴装配到旋转轴中以在其间具有第二间隙支撑阳极。 圆盘部分和固定轴彼此一体形成在其中具有中空部分。 使冷却液流过中空部。 液体金属填充在第一和第二间隙中。 在第二间隙中形成动压型轴承。 形成通道以将第一间隙直接连通到第二间隙，从而将液态金属从第二间隙直接供应到第一间隙。 因此，可以将液体金属快速且可靠地进料到阳极靶和冷却容器之间的间隙中。

公开(公告)号：US20110058654A1

公开(公告)日：2011-03-10

申请号：US12875559

申请日：2010-09-03

申请人： Chiharu Tadokoro ,  Yasutaka Ito ,  Hitoshi Hattori ,  Ryoichi Takahashi ,  Tetsuya Yonezawa ,  Hironori Nakamuta

发明人： Chiharu Tadokoro ,  Yasutaka Ito ,  Hitoshi Hattori ,  Ryoichi Takahashi ,  Tetsuya Yonezawa ,  Hironori Nakamuta

IPC分类号： H01J35/00

CPC分类号： H01J35/101 ,  H01J2235/106 ,  H01J2235/1086

摘要： A rotary anode X-ray tube apparatus according to an embodiment of the present invention includes a stationary shaft, a cooling bath that is provided in the stationary shaft, a rotary cylinder that is rotatably supported to the stationary shaft, a target that is provided in the rotary cylinder, a cathode that is disposed to face the target, and a vacuum enclosure that stores these components. The stationary shaft has a large-diameter portion provided in a portion thereof and is provided with a flow passage through which a cooling fluid flows. The cooling bath is provided by thinning the wall thickness of the large-diameter portion to increase the flow passage diameter of a portion of the flow passage. The rotary cylinder covers an area of the stationary shaft including the large-diameter portion through a liquid metal and is rotatably supported to the stationary shaft. The target has a hollow circular plate shape that is provided on an outer circumferential surface of the rotary cylinder. The vacuum enclosure stores the stationary shaft, the rotary cylinder, the target, and the cathode and supports the stationary shaft.

摘要翻译： 根据本发明实施例的旋转阳极X射线管装置包括固定轴，设置在固定轴中的冷却槽，可旋转地支撑在固定轴上的旋转圆筒，设置在 旋转圆筒，设置为面对靶的阴极和存储这些部件的真空外壳。 固定轴具有设置在其一部分中的大直径部分，并且设置有冷却流体流过的流动通道。 通过减薄大直径部分的壁厚来提供冷却浴，以增加流路的一部分的流路直径。 旋转圆筒通过液体金属覆盖包括大直径部分的固定轴的区域，并且可旋转地支撑在固定轴上。 目标具有设置在旋转圆筒的外周面上的中空圆板形状。 真空外壳存放固定轴，旋转圆筒，目标和阴极，并支撑固定轴。