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公开(公告)号：US20090225950A1
公开(公告)日：2009-09-10
申请号：US12469254
申请日：2009-05-20
申请人： Tetsuya Yonezawa , Hironori Nakamuta , Ryoichi Takahashi , Yasuo Yoshii , Hitoshi Hattori , Yasutaka Ito
发明人： Tetsuya Yonezawa , Hironori Nakamuta , Ryoichi Takahashi , Yasuo Yoshii , Hitoshi Hattori , Yasutaka Ito
IPC分类号： H01J35/00
CPC分类号： H01J35/106 , H01J2235/1006 , H01J2235/1046 , H01J2235/108 , H01J2235/1204 , H01J2235/1262
摘要： A rotating anode X-ray tube includes a fixed body having a radial sliding bearing surface and a channel therein through which a coolant flows, a rotor including a discoid large-diameter portion, which has a recess fitted with one end portion of the fixed body with a clearance therebetween and constitutes an anode target, and a small-diameter portion, which has on an inner surface thereof a radial sliding bearing surface which faces the aforesaid radial sliding bearing surface with a clearance, and is united with the large-diameter portion at one end portion thereof, a lubricant filling the clearances, a cathode arranged opposite to the anode target, and a vacuum envelope which contains the fixed body, the rotor, the lubricant and the cathode, and fixes the fixed body at another end portion of the fixed body situated opposite the one end portion of the fixed body fitted in the recess.
摘要翻译： 旋转阳极X射线管包括具有径向滑动轴承表面的固定体和冷却剂流过的通道，包括盘状大直径部分的转子，其具有与固定体的一个端部配合的凹部 并且构成阳极靶，小直径部分在其内表面上具有与所述径向滑动轴承表面间隙相对的径向滑动轴承表面，并与大直径部分 在其一端部分填充有间隙的润滑剂，与阳极靶相对的阴极，以及包含固定体，转子，润滑剂和阴极的真空外壳，并将固定体固定在另一端部 所述固定体位于与所述凹部中嵌合的所述固定体的一端部相对的位置。
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公开(公告)号：US07697665B2
公开(公告)日：2010-04-13
申请号：US12469254
申请日：2009-05-20
申请人： Tetsuya Yonezawa , Hironori Nakamuta , Ryoichi Takahashi , Yasuo Yoshii , Hitoshi Hattori , Yasutaka Ito
发明人： Tetsuya Yonezawa , Hironori Nakamuta , Ryoichi Takahashi , Yasuo Yoshii , Hitoshi Hattori , Yasutaka Ito
IPC分类号： H01J35/00
CPC分类号： H01J35/106 , H01J2235/1006 , H01J2235/1046 , H01J2235/108 , H01J2235/1204 , H01J2235/1262
摘要： A rotating anode X-ray tube includes a fixed body having a radial sliding bearing surface and a channel therein through which a coolant flows, a rotor including a discoid large-diameter portion, which has a recess fitted with one end portion of the fixed body with a clearance therebetween and constitutes an anode target, and a small-diameter portion, which has on an inner surface thereof a radial sliding bearing surface which faces the aforesaid radial sliding bearing surface with a clearance, and is united with the large-diameter portion at one end portion thereof, a lubricant filling the clearances, a cathode arranged opposite to the anode target, and a vacuum envelope which contains the fixed body, the rotor, the lubricant and the cathode, and fixes the fixed body at another end portion of the fixed body situated opposite the one end portion of the fixed body fitted in the recess.
摘要翻译： 旋转阳极X射线管包括具有径向滑动轴承表面的固定体和冷却剂流过的通道，包括盘状大直径部分的转子，其具有与固定体的一个端部配合的凹部 并且构成阳极靶，小直径部分在其内表面上具有与所述径向滑动轴承表面间隙相对的径向滑动轴承表面，并与大直径部分 在其一端部分填充有间隙的润滑剂，与阳极靶相对的阴极，以及包含固定体，转子，润滑剂和阴极的真空外壳，并将固定体固定在另一端部 所述固定体位于与所述凹部中嵌合的所述固定体的一端部相对的位置。
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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
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。
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公开(公告)号：US20090245469A1
公开(公告)日：2009-10-01
申请号：US12408514
申请日：2009-03-20
申请人： Yasutaka Ito , Hitoshi Hattori , Yasuo Yoshii , Chiharu Todokoro , Hironori Nakamuta , Tetsuya Yonezawa
发明人： Yasutaka Ito , Hitoshi Hattori , Yasuo Yoshii , Chiharu Todokoro , Hironori Nakamuta , Tetsuya Yonezawa
IPC分类号： H01J35/00
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。
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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
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。
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公开(公告)号：US20070092063A1
公开(公告)日：2007-04-26
申请号：US11564152
申请日：2006-11-28
申请人： Harunobu Fukushima , Yasuo Yoshii , Hitoshi Hattori , Koichi Kitade , Mitsuo Iwase , Hironori Nakamuta
发明人： Harunobu Fukushima , Yasuo Yoshii , Hitoshi Hattori , Koichi Kitade , Mitsuo Iwase , Hironori Nakamuta
IPC分类号： H01J35/00
CPC分类号： H01J35/101 , H01J2235/1006 , H01J2235/106
摘要： In a rotary anode type X-ray tube, a rotary anode and a rotary structure supporting the anode are arranged within the vacuum envelope. A stationary shaft has a middle section which is fitted into a cylindrical portion of the rotary structure, and a dynamic pressure type radial bearing is arranged between the cylindrical portion and the middle section. The stationary shaft also has a first section between one end of the middle section and one end of the stationary shaft, and a second section between the other end of the middle section and the other end of the stationary shaft, which are fixed to the vacuum envelope. A transverse stiffness of the second section is set to be larger than a transverse stiffness of the first section, and a center of gravity is positioned in the middle section.
摘要翻译： 在旋转阳极型X射线管中，旋转阳极和支撑阳极的旋转结构布置在真空外壳内。 固定轴具有嵌入旋转结构的圆筒部的中间部，并且在圆筒部与中间部之间配置有动压型径向轴承。 固定轴还具有在中间部分的一端和固定轴的一端之间的第一部分，以及固定在真空的中间部分的另一端和固定轴的另一端之间的第二部分 信封。 第二部分的横向刚度被设定为大于第一部分的横向刚度，并且重心位于中间部分。
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公开(公告)号：US20050089144A1
公开(公告)日：2005-04-28
申请号：US10927105
申请日：2004-08-27
申请人： Harunobu Fukushima , Yasuo Yoshii , Hitoshi Hattori , Koichi Kitade , Mitsuo Iwase , Hironori Nakamuta
发明人： Harunobu Fukushima , Yasuo Yoshii , Hitoshi Hattori , Koichi Kitade , Mitsuo Iwase , Hironori Nakamuta
CPC分类号： H01J35/101 , H01J2235/1006 , H01J2235/106
摘要： In a rotary anode type X-ray tube, a rotary anode and a rotary structure supporting the anode are arranged within the vacuum envelope. A stationary shaft has a middle section which is fitted into a cylindrical portion of the rotary structure, and a dynamic pressure type radial bearing is arranged between the cylindrical portion and the middle section. The stationary shaft also has a first section between one end of the middle section and one end of the stationary shaft, and a second section between the other end of the middle section and the other end of the stationary shaft, which are fixed to the vacuum envelope. A transverse stiffness of the second section is set to be larger than a transverse stiffness of the first section, and a center of gravity is positioned in the middle section.
摘要翻译： 在旋转阳极型X射线管中，旋转阳极和支撑阳极的旋转结构布置在真空外壳内。 固定轴具有嵌入旋转结构的圆筒部的中间部，并且在圆筒部与中间部之间配置有动压型径向轴承。 固定轴还具有在中间部分的一端和固定轴的一端之间的第一部分，以及固定在真空的中间部分的另一端和固定轴的另一端之间的第二部分 信封。 第二部分的横向刚度被设定为大于第一部分的横向刚度，并且重心位于中间部分。
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公开(公告)号：US07215740B2
公开(公告)日：2007-05-08
申请号：US10927105
申请日：2004-08-27
申请人： Harunobu Fukushima , Yasuo Yoshii , Hitoshi Hattori , Koichi Kitade , Mitsuo Iwase , Hironori Nakamuta
发明人： Harunobu Fukushima , Yasuo Yoshii , Hitoshi Hattori , Koichi Kitade , Mitsuo Iwase , Hironori Nakamuta
IPC分类号： H01J35/10
CPC分类号： H01J35/101 , H01J2235/1006 , H01J2235/106
摘要： In a rotary anode type X-ray tube, a rotary anode and a rotary structure supporting the anode are arranged within the vacuum envelope. A stationary shaft has a middle section which is fitted into a cylindrical portion of the rotary structure, and a dynamic pressure type radial bearing is arranged between the cylindrical portion and the middle section. The stationary shaft also has a first section between one end of the middle section and one end of the stationary shaft, and a second section between the other end of the middle section and the other end of the stationary shaft, which are fixed to the vacuum envelope. A transverse stiffness of the second section is set to be larger than a transverse stiffness of the first section, and a center of gravity is positioned in the middle section.
摘要翻译： 在旋转阳极型X射线管中，旋转阳极和支撑阳极的旋转结构布置在真空外壳内。 固定轴具有嵌入旋转结构的圆筒部的中间部，并且在圆筒部与中间部之间配置有动压型径向轴承。 固定轴还具有在中间部分的一端和固定轴的一端之间的第一部分，以及固定在真空的中间部分的另一端和固定轴的另一端之间的第二部分 信封。 第二部分的横向刚度被设定为大于第一部分的横向刚度，并且重心位于中间部分。
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公开(公告)号：US07324629B2
公开(公告)日：2008-01-29
申请号：US11564152
申请日：2006-11-28
申请人： Harunobu Fukushima , Yasuo Yoshii , Hitoshi Hattori , Koichi Kitade , Mitsuo Iwase , Hironori Nakamuta
发明人： Harunobu Fukushima , Yasuo Yoshii , Hitoshi Hattori , Koichi Kitade , Mitsuo Iwase , Hironori Nakamuta
IPC分类号： H01J35/10
CPC分类号： H01J35/101 , H01J2235/1006 , H01J2235/106
摘要： In a rotary anode type X-ray tube, a rotary anode and a rotary structure supporting the anode are arranged within the vacuum envelope. A stationary shaft has a middle section which is fitted into a cylindrical portion of the rotary structure, and a dynamic pressure type radial bearing is arranged between the cylindrical portion and the middle section. The stationary shaft also has a first section between one end of the middle section and one end of the stationary shaft, and a second section between the other end of the middle section and the other end of the stationary shaft, which are fixed to the vacuum envelope. A transverse stiffness of the second section is set to be larger than a transverse stiffness of the first section, and a center of gravity is positioned in the middle section.
摘要翻译： 在旋转阳极型X射线管中，旋转阳极和支撑阳极的旋转结构布置在真空外壳内。 固定轴具有嵌入旋转结构的圆筒部的中间部，并且在圆筒部与中间部之间配置有动压型径向轴承。 固定轴还具有在中间部分的一端和固定轴的一端之间的第一部分，以及固定在真空的中间部分的另一端和固定轴的另一端之间的第二部分 信封。 第二部分的横向刚度被设定为大于第一部分的横向刚度，并且重心位于中间部分。
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公开(公告)号：US08021044B2
公开(公告)日：2011-09-20
申请号：US12493557
申请日：2009-06-29
CPC分类号： A61B6/035
摘要： Fins are arranged on the rotating side of an X-ray computed tomography apparatus. The fins are rotated to generate airflow as the rotating side is rotated. This airflow serves to discharge wear debris to the outside of the X-ray CT apparatus, thereby preventing the wear debris from scattering toward an X-ray tube and support bearing. In consequence, in the X-ray CT apparatus provided with a slip ring, the wear debris produced in a contact space between the slip ring and a brush can be prevented from being scattered in the apparatus.
摘要翻译： 翅片布置在X射线计算机断层摄影装置的旋转侧。 当旋转侧旋转时，翅片旋转以产生气流。 该气流用于将磨损碎片排出到X射线CT装置的外部，从而防止磨损碎片向X射线管和支撑轴承散射。 因此，在具有滑环的X射线CT装置中，能够防止在滑环和刷子之间的接触空间中产生的磨损碎屑散布在装置中。
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