公开(公告)号：US20110280376A1

公开(公告)日：2011-11-17

申请号：US13125327

申请日：2009-10-19

Applicant: Rolf Karl Otto Behling ,  Christoph Bathe ,  Michael Luebcke ,  Van-Minh Duong ,  Krishna Swamy

Inventor： Rolf Karl Otto Behling ,  Christoph Bathe ,  Michael Luebcke ,  Van-Minh Duong ,  Krishna Swamy

IPC: H01J35/10 ,  H01J9/00

CPC classification number: H01J35/101 ,  H01J2235/106 ,  H01J2235/1086

Abstract: The invention describes an X-ray tube for generating X-radiation, wherein the tube comprises a rotary structure, which comprises a rotating anode, a stationary structure for rotatably supporting the rotary structure, a hydrodynamic bearing, which is arranged between the rotary structure and the stationary structure, wherein the bearing comprises a gap between the rotary structure and the stationary structure, means for stabilising the dimensions of the gap with respect to distortions because of thermo-mechanical causes. A further aspect, which is described, is a method for manufacturing the tube according to the invention, wherein means for stabilising the dimensions of the gap are arranged. It is also described an X-ray system for diagnostic use comprising the tube according to the invention, wherein the X-ray system is adapted to stabilise the dimensions of the gap. Another aspect of the specification is a method for manufacturing the X-ray system.

Abstract translation: 本发明描述了一种用于产生X射线的X射线管，其中管包括旋转结构，其包括旋转阳极，用于可旋转地支撑旋转结构的固定结构，流体动力轴承，其布置在旋转结构和 固定结构，其中轴承包括旋转结构和固定结构之间的间隙，用于由于热机械原因而相对于变形稳定间隙的尺寸的装置。 所描述的另一方面是根据本发明的制造管的方法，其中布置了用于稳定间隙的尺寸的装置。 还描述了用于诊断用途的X射线系统，其包括根据本发明的管，其中X射线系统适于稳定间隙的尺寸。 说明书的另一方面是用于制造X射线系统的方法。

公开(公告)号：US07324629B2

公开(公告)日：2008-01-29

申请号：US11564152

申请日：2006-11-28

Applicant: Harunobu Fukushima ,  Yasuo Yoshii ,  Hitoshi Hattori ,  Koichi Kitade ,  Mitsuo Iwase ,  Hironori Nakamuta

Inventor： Harunobu Fukushima ,  Yasuo Yoshii ,  Hitoshi Hattori ,  Koichi Kitade ,  Mitsuo Iwase ,  Hironori Nakamuta

IPC: H01J35/10

CPC classification number: H01J35/101 ,  H01J2235/1006 ,  H01J2235/106

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06546078B2

公开(公告)日：2003-04-08

申请号：US09801745

申请日：2001-03-09

Applicant: Hideki Ide

Inventor： Hideki Ide

IPC: H01J3528

CPC classification number: H01J35/101 ,  H01J2235/106 ,  H01J2235/1086

Abstract: An X-ray tube includes a substantially cylindrical rotor having an anode target fixed thereto, a substantially columnar stationary shaft coaxially arranged inside the rotor with a bearing gap, a dynamic slide bearing having helical grooves and formed between the rotor and the stationary shaft, and a metal lubricant supplied to the grooves and to the gap. An axial bore is formed in the shaft to extend in the longitudinal direction of the shaft, and an insertion rod is inserted into the axial bore such that a space extending in the longitudinal direction of the shaft is formed between an inner circumferential surface of the axial bore and an outer circumferential surface of the insertion rod. The space acts as at least one lubricant reservoir that is configured to store the metal lubricant.

Abstract translation: X射线管包括固定有阳极靶的大致圆柱形的转子，具有轴承间隙同轴地布置在转子内部的基本上柱状的固定轴，具有螺旋槽并形成在转子和固定轴之间的动态滑动轴承，以及 提供给槽和间隙的金属润滑剂。 在轴上形成轴向孔以在轴的纵向方向上延伸，并且插入杆插入到轴向孔中，使得在轴的纵向方向上延伸的空间形成在轴向的内周表面之间 孔和插入杆的外周面。 该空间用作至少一个润滑剂储存器，其构造成存储金属润滑剂。

公开(公告)号：US06477236B1

公开(公告)日：2002-11-05

申请号：US09690448

申请日：2000-10-18

Applicant: Hidero Anno ,  Yukinari Yoshida ,  Hironori Nakamuta

Inventor： Hidero Anno ,  Yukinari Yoshida ,  Hironori Nakamuta

IPC: H01J3510

CPC classification number: H01J35/105 ,  H01J2235/106 ,  H01J2235/1208 ,  H01J2235/1266

Abstract: A rotary anode X-ray tube, comprising a rotor, a stationary structure, a dynamic pressure slide bearing formed between the rotor and the stationary structure, the stationary structure having a lubricant storage chamber and provided with a lubricant passageway, and a vacuum vessel. Holes are formed in the stationary structure extending from the lower edge surface along the tube axis and not to cross the lubricant storage chamber and the lubricant passageway. Heat transfer members for the stationary structure having a heat conductivity higher than that of the stationary structure are inserted into the holes, respectively. A heat transfer member having a heat conductivity higher than that of the inner cylindrical structure of the rotor is bonded in a cylindrical form to the outer circumferential wall of the inner cylindrical structure constituting a bearing. A heat transfer member can be mounted to each of the rotor and the stationary structure.

Abstract translation: 一种旋转阳极X射线管，包括转子，静止结构，形成在转子和固定结构之间的动压滑动轴承，固定结构具有润滑剂储存室并设置有润滑剂通道，以及真空容器。 在从下边缘表面沿着管轴线延伸的固定结构中形成孔，而不是穿过润滑剂储存室和润滑剂通道。 具有比固定结构的热导率高的固定结构的传热构件分别插入孔中。 导热率高于转子的内圆柱形结构的传热构件以圆柱形式结合到构成轴承的内圆柱形结构的外周壁上。 传热构件可以安装到转子和静止结构中的每一个上。

公开(公告)号：US6064719A

公开(公告)日：2000-05-16

申请号：US121575

申请日：1998-07-23

Applicant: Axel Vetter ,  Leonardus P. M. Tielemans ,  Bernardus W. J. Wassink

Inventor： Axel Vetter ,  Leonardus P. M. Tielemans ,  Bernardus W. J. Wassink

IPC: F16C23/04 ,  H01J35/10 ,  H01J35/26

CPC classification number: H01J35/101 ,  F16C23/04 ,  H01J2235/106

Abstract: The invention relates to a rotary-anode X-ray tube which includes a sleeve bearing comprising an inner bearing member (9) and an outer bearing member (8). The inner bearing member itself includes three bearing portions, the first (94) of which takes up the axial bearing forces whereas the second bearing portion takes up the radial bearing forces and the third bearing portion (96) interconnects the first and the second bearing portion in such a manner that the symmetry axis (11) of the first or the second bearing portion can perform a swaying motion about the axis of rotation (10) during rotation of the two bearing members. Adequate bearing capacity is thus ensured even when the axial bearing surfaces do not extend exactly perpendicularly to the radial bearing surfaces.

Abstract translation: 本发明涉及一种旋转阳极X射线管，其包括具有内轴承构件（9）和外轴承构件（8）的套筒轴承。 内部轴承部件本身包括三个轴承部分，其中第一（94）承受轴向支承力，而第二轴承部分承受径向支承力，而第三轴承部分（96）将第一和第二轴承部分 使得第一或第二轴承部分的对称轴线（11）能够在两个轴承部件旋转期间绕旋转轴线（10）执行摇摆运动。 因此即使当轴向轴承表面没有精确地垂直于径向支承表面延伸时，也能确保足够的承载能力。

公开(公告)号：US5701336A

公开(公告)日：1997-12-23

申请号：US771877

申请日：1996-12-23

Applicant: Heinz-Jurgen Jacob

Inventor： Heinz-Jurgen Jacob

IPC: B05B15/06 ,  H01J35/10 ,  H01J35/26

CPC classification number: H01J35/101 ,  B05B15/061 ,  H01J2235/106

Abstract: The invention relates to a rotary-anode X-ray tube comprising a plain bearing, notably a spiral groove bearing, which comprises a bearing shaft and a bearing shell which encloses the bearing shaft, contains essentially molybdenum and/or tungsten or alloys thereof, and consists of at least two bearing shell portions, a liquid lubricant being present between the bearing shaft and the bearing shell. The material consumption and the manufacturing effort for the bearing shell are reduced in that on the outer side of the bearing portions there are provided connection elements which consist of a weldable material, and that the connection elements are connected to one another by way of a welded joint.

Abstract translation: 本发明涉及一种包括滑动轴承，特别是螺旋槽轴承的旋转阳极X射线管，其包括轴承轴和包围轴承轴的轴承壳，其基本上包含钼和/或钨或其合金，以及 由至少两个轴承壳部分组成，液体润滑剂存在于轴承轴和轴承壳之间。 减少了轴承壳的材料消耗和制造工作，因为在轴承部分的外侧设置有由可焊接材料构成的连接元件，并且连接元件通过焊接 联合。

公开(公告)号：US5602898A

公开(公告)日：1997-02-11

申请号：US590252

申请日：1996-01-23

Applicant: Axel Vetter ,  Leo P. M. Tielemans

Inventor： Axel Vetter ,  Leo P. M. Tielemans

IPC: F16C33/10 ,  H01J35/10 ,  H01J35/24

CPC classification number: F16C17/107 ,  F16C33/107 ,  H01J35/101 ,  F16C2240/40 ,  H01J2235/106

Abstract: A rotary-anode X-ray tube, include a sleeve bearing which serves to journal the rotary anode which sleeve bearing has a stationary bearing portion and a bearing portion which is rotatable about an axis of rotation. The two bearing portions cooperate with one another via a lubricant and have bearing surfaces which extend perpendicularly to the axis of rotation in order to take up axial bearing forces. The bearing surfaces changes over into external surfaces which form a lubricant gap between the bearing portions and one of which is provided with a groove pattern. In order to maintain the bearing capacity of this bearing also for forces acting in the axial direction, even under unfavorable operating conditions, the external surface of the rotatable bearing portion which bounds the lubricant gap has a cross-section which is symmetrical with respect to the axis of rotation whereas the cross-section of the external surface of the stationary bearing portion which bounds the lubricant gap is non-symmetrical with respect to the axis of rotation.

Abstract translation: 旋转阳极X射线管包括套筒轴承，其用于使套筒轴承具有固定轴承部的旋转阳极轴颈和可围绕旋转轴线旋转的轴承部。 两个轴承部分通过润滑剂相互配合，并且具有垂直于旋转轴线延伸的轴承表面，以便承受轴向支承力。 轴承表面转变成在轴承部分之间形成润滑剂间隙的外表面，其中一个具有凹槽图案。 为了保持该轴承的承载能力，即使在不利的作业条件下，即使在不利的作业条件下作用的力，也可以将限定润滑剂间隙的旋转轴承部分的外表面的截面相对于 旋转轴线，而限定润滑剂间隙的固定轴承部分的外表面的横截面相对于旋转轴线是不对称的。

公开(公告)号：US5506881A

公开(公告)日：1996-04-09

申请号：US334054

申请日：1994-11-04

Applicant: Katsuhiro Ono ,  Takayuki Kitami

Inventor： Katsuhiro Ono ,  Takayuki Kitami

IPC: H05G1/04 ,  H01J35/10 ,  H01J35/16 ,  H05G1/02

CPC classification number: H01J35/16 ,  H01J35/101 ,  H01J2235/106 ,  H01J2235/166

Abstract: In an X-ray tube apparatus of a rotating anode type, a stator surrounds an anode rotary structure and an insulating container section placed around the outer periphery of a stationary structure such that a portion of its coil conductor located near the anode target side constitutes an expanding flared coil conductor portion. Therefore, it is possible, for the X-ray tube equipped with an envelope having a large-diameter metal section and small-diameter insulating container section, to shorten the axial length from an anode target of the X-ray tube to a far end of the rotary structure and to suppress the build-up of electric charges on the inner surface of the insulating container section.

Abstract translation: 在旋转阳极型的X射线管装置中，定子围绕阳极旋转结构和绝缘容器部分，该绝缘容器部分设置在固定结构的外周周围，使得位于阳极靶侧附近的线圈导体的一部分构成 膨胀的螺旋线圈导体部分。 因此，对于具有大直径金属部分和小直径绝缘容器部分的外壳的X射线管，可以缩短从X射线管的阳极靶到远端的轴向长度 并抑制电绝缘容器部的内表面积聚。

公开(公告)号：US4614445A

公开(公告)日：1986-09-30

申请号：US667944

申请日：1984-11-02

Applicant: Jan Gerkema ,  Jozef B. Pelzer

Inventor： Jan Gerkema ,  Jozef B. Pelzer

IPC: F16C33/10 ,  C10M103/04 ,  C10N40/02 ,  F16C17/10 ,  F16C33/00 ,  F16N15/00 ,  H01J35/10 ,  F16C33/12 ,  F16C33/72

CPC classification number: H01J35/101 ,  H01J2235/106 ,  H01J2235/1066 ,  Y10S384/912

Abstract: In order to prevent the escape of metal lubricant in a helical-groove bearing, the helical-groove bearing is provided with an anti-wetting layer on the surfaces which adjoin the helically grooved surfaces and which could act as a creepage path for the metal lubricant. An extremely accurate definition of the bearing portions to be wetted by the lubricant is also obtained by means of these layers. Thus, more complex bearings can also be locally provided with a metal lubricant.

Abstract translation: 为了防止螺旋槽轴承中的金属润滑剂的逸出，螺旋槽轴承在与螺旋槽表面相邻的表面上设置有防湿层，并且可以用作金属润滑剂的爬电路径 。 通过这些层也可获得润滑剂润湿的轴承部分的非常精确的定义。 因此，更复杂的轴承也可以局部地提供金属润滑剂。

公开(公告)号：US4562587A

公开(公告)日：1985-12-31

申请号：US562312

申请日：1983-12-16

Applicant: Jan Gerkema ,  Anton K. Niessen ,  Jozef B. Pelzer

Inventor： Jan Gerkema ,  Anton K. Niessen ,  Jozef B. Pelzer

IPC: C22C28/00 ,  F16C17/10 ,  F16C33/10 ,  F16C33/12 ,  F16N17/06 ,  H01J35/10 ,  H01J35/28

CPC classification number: F16C33/107 ,  F16C17/105 ,  F16C33/12 ,  H01J35/101 ,  F16C2210/08 ,  H01J2235/1053 ,  H01J2235/106

Abstract: An X-ray tube having a rotary anode which is accommodated in a vacuum-tight housing so as to be rotatable by means of at least one spirally grooved bearing. The mutually cooperating surfaces of the bearing consist essentially of Mo or of an alloy of Mo and W and are effectively wetted by a Ga-alloy serving as a bearing lubricant. In order to extend the life of the X-ray tube, 1 to 4% by weight of Ag and/or Cu are added to the Ga-alloy, as a result of which the formation of crystalline compounds is inhibited.

Abstract translation: 一种具有旋转阳极的X射线管，其容纳在真空密封壳体中，以便通过至少一个螺旋槽轴承可旋转。 轴承的相互配合的表面基本上由Mo或Mo和W的合金组成，并被用作轴承润滑剂的Ga合金有效地润湿。 为了延长X射线管的寿命，向Ga合金中添加1〜4重量％的Ag和/或Cu，结果抑制了结晶化合物的形成。