Medical detection system, x-ray tube, tube core and rotating anode assembly

Abstract

The application discloses a medical detection system, an X-ray tube, a tube core and an anode assembly. The medical detection system comprises an X-ray emitting device, an X-ray imaging device and an image processing device. The X-ray emitting device comprises an X-ray tube for emitting X-rays. The X-ray tube comprises a tube core and a tube sleeve. The rear end of the tube core is fixedly connected with the tube sleeve through a first support. The tube core comprises a bearing assembly, an anode target disc and a cathode. The cathode projects electrons to the anode target disc. The bearing assembly comprises a bearing seat and a bearing. The bearing is connected with the anode target disc, so that the anode target disc can rotate relative to the bearing seat. The rear end of the bearing is connected with the bearing seat, and a damping device is arranged between the bearing and the bearing seat. The bearing seat is connected with the first support.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of X-ray tubes, in particular to a medical detection system, an X-ray tube, a tube core and an anode assembly. BACKGROUND

[0002] Medical detection systems based on X-ray tubes have been more and more widely used. The medical detection system emits X-rays through the X-ray tube in the X-ray emitting device, generates corresponding images through the X-ray imaging device, and processes the images through the image processing device to generate medical images that can be referred to by doctors. And further, the image processing device deployed with an artificial intelligence module can also provide diagnostic suggestions according to the medical images for the reference of doctors.

[0003] Among them, the rotating anode X-ray tube is an important component of the medical detection system, Figure 1A shows a schematic diagram of the existing rotating anode X-ray tube. Referring to Figure 1A As shown, the rotating anode X-ray tube includes a tube core 10, a tube sleeve 20, a coil 30 and the like. Among them, the tube core 10 is the core component of the rotating anode X-ray tube, and the tube core 100 is generally connected with the tube sleeve 20 at the end of the bearing 110 and the tube core shell 400 through the first support 21 and the second support 22. The tube sleeve 20 is filled with insulating oil.

[0004] Figure 1B shows a schematic diagram of the existing tube core 100 for the rotating anode X-ray tube. Referring to Figure 1B As shown, the tube core 100 mainly includes a cathode 300, a bearing 110, an anode target disc 200 and a tube core shell 400. Among them, the inside of the tube core 10 is in a vacuum state.

[0005] The anode target disc 200 and the bearing 110 are generally connected together through screws to form a rotating anode assembly. In the working state, the rotating speed of the rotating anode assembly is as high as 9000r / min, and some even reach 12000r / min. Due to the uneven material quality of the parts, the machining precision and the assembly deviation of the parts, the rotating anode assembly itself will have a mass eccentricity. When the rotating anode assembly rotates at high speed, the periodic centrifugal force excitation generated by the mass eccentricity acts on the bearing 110, thereby causing the rotating anode assembly to vibrate.

[0006] Figure 1C shows the vibration conduction direction of the rotating anode assembly inside the X-ray tube. Referring to Figure 1CAs shown, generally, the vibration source generates vibration, and the vibration is transmitted to the vibration object through the medium. As can be seen from the X-ray tube, the tube core 10 and the tube shell 20 are mounted together through the first support 21 and the second support 22. When the X-ray tube works, the rotating anode assembly inside the tube core 10 acts as the vibration source, generates vibration 0, and conducts the vibration to the outside of the tube core 10 (the tube core shell 400 is the inner and outer boundary of the tube core 10). Part of the vibration 1, 2 is conducted from the first support 21 at the end of the tube core 10 to the tube shell 20; another part of the vibration 3, 4 is conducted to the tube core shell 400 first, and then to the tube shell 20 through the second support 22.

[0007] The tube core shell 400 of the X-ray tube is generally made of glass. If the vibration of the rotating anode assembly is too large and is conducted to the tube core shell 400, the strength of the glass will be reduced, and even the glass will be broken. In addition, the vibration of the rotating anode assembly conducted to the tube shell 20 will affect the imaging quality provided by the medical detection system, and the noise generated by the vibration will also affect the comfort of the patient during the treatment. In order to reduce the influence of the vibration of the rotating anode assembly on the strength of the internal components of the X-ray tube, and to provide doctors and patients with clearer images and more comfortable diagnosis and treatment environment, it is necessary to suppress the outward conduction of the vibration of the rotating anode assembly inside the tube core 10.

[0008] Figure 1D A schematic diagram of the prior art vibration reduction structure is shown. Referring to Figure 1D As shown, the prior art is to install an elastic member outside the tube core 10, that is, at the first support 21, to isolate the vibration generated by the vibration source (that is, the rotating anode assembly). For example, the prior art installs an elastic member at the radial end face 42 of the bearing outside the tube core 10, or installs an elastic member at the axial end face 41 of the bearing outside the tube core 10.

[0009] However, the existing vibration reduction structure has the following problems:

[0010] 1) The vibration source of the X-ray tube is inside the tube core 10, but the prior art is to isolate the vibration outside the tube core 10 (for example, at the first support 21). Since the position where the vibration isolation elastic member is installed is far away from the vibration source, the effect of isolating the vibration or weakening the vibration is limited;

[0011] 2) As can be seen from the structure of the rotating anode X-ray tube, when the X-ray tube works, the vibration generated by the rotating anode assembly will be conducted to the outside in multiple directions through multiple paths, such as Figure 1CThe prior art generally only insulates the vibration in the 0→1 or 0→2 direction (from the first support 21 to the sleeve 20) alone. However, the prior art does not take measures to effectively insulate the vibration conducted in the 0→3 and 0→4 directions (from the second support 22 to the sleeve 20). Therefore, the vibration isolation structure of the prior art cannot effectively insulate all the diffusion branches of the vibration, and thus the vibration reduction effect is limited.

[0012] The prior art has not yet proposed an effective solution to the technical problem that the vibration generated by the rotating anode assembly cannot be effectively insulated in the existing X-ray-based medical detection system, resulting in fragmentation of the tube core shell and deterioration of the image quality of the imaging image, accompanied by generated noise. SUMMARY

[0013] The present disclosure provides an X-ray tube, a tube core and an anode assembly to at least solve the technical problem that the vibration generated by the rotating anode assembly cannot be effectively insulated in the existing X-ray-based medical detection system, resulting in fragmentation of the tube core shell and deterioration of the image quality of the imaging image, accompanied by generated noise.

[0014] According to one aspect of the present application, an X-ray-based medical detection system is provided, comprising: an X-ray emitting device, an X-ray imaging device and an image processing device. The X-ray emitting device comprises an X-ray tube for emitting X-rays; the X-ray imaging device is configured to generate corresponding images based on the X-rays emitted by the X-ray emitting device; and the image processing device is in communication connection with the X-ray imaging device and is configured to perform image processing on the images generated by the X-ray imaging device. The X-ray tube comprises a tube core and a sleeve. The rear end of the tube core is fixedly connected to the sleeve through a first support, and the tube core comprises a bearing assembly, an anode target disc and a cathode, wherein the cathode projects electrons to the anode target disc. The bearing assembly comprises a bearing seat and a bearing. The bearing is connected to the anode target disc, so that the anode target disc can rotate relative to the bearing seat; the rear end of the bearing is connected to the bearing seat, and a damping device is arranged between the bearing and the bearing seat; and the bearing seat is connected to the first support.

[0015] According to one aspect of the present application, an X-ray tube is provided, comprising: a tube core and a sleeve. The rear end of the tube core is fixedly connected to the sleeve through a first support, and the tube core comprises a bearing assembly, an anode target disc and a cathode, wherein the cathode projects electrons to the anode target disc. The bearing assembly comprises a bearing seat and a bearing. The bearing is connected to the anode target disc, so that the anode target disc can rotate relative to the bearing seat; the rear end of the bearing is connected to the bearing seat, and a damping device is arranged between the bearing and the bearing seat; and the bearing seat is connected to the first support.

[0016] According to another aspect of the present application, there is provided a tube core for an X-ray tube, comprising a bearing assembly, an anode target disk, and a cathode. Wherein the cathode projects electrons to the anode target disk. Wherein the bearing assembly comprises a bearing seat and a bearing. Wherein the bearing is connected with the anode target disk so that the anode target disk can rotate relative to the bearing seat; and a rear end of the bearing is connected with the bearing seat, and a damping device is arranged between the bearing and the bearing seat.

[0017] According to another aspect of the present application, there is provided a rotating anode assembly for an X-ray tube, comprising a bearing assembly and an anode target disk. The bearing assembly comprises a bearing seat and a bearing. Wherein the bearing is connected with the anode target disk so that the anode target disk can rotate relative to the bearing seat; and a rear end of the bearing is connected with the bearing seat, and a damping device is arranged between the bearing and the bearing seat.

[0018] Therefore, by the technical solution of the present disclosure, the propagation of vibration can be blocked at a position closer to the vibration source, especially inside the tube core. Thus, the vibration generated by the vibration source can be effectively isolated. The technical problem that the vibration generated by the rotating anode assembly cannot be effectively blocked in the prior art, resulting in cracking of the tube core shell and deterioration of the image quality of the imaging image, accompanied by noise, is solved.

[0019] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] Some embodiments of the present application will be described in detail with reference to the accompanying drawings, wherein the same or like reference numerals used in different drawings denote the same or similar components or parts. It should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

[0021] Figure 1A A schematic diagram of an existing rotating anode X-ray tube is shown;

[0022] Figure 1B A schematic diagram of an existing tube core for a rotating anode X-ray tube is shown;

[0023] Figure 1C A vibration conduction direction of a rotating anode assembly inside an X-ray tube is shown;

[0024] Figure 1D A schematic diagram of a damping structure of the prior art is shown;

[0025] Figure 2 A schematic diagram of an X-ray-based medical detection system according to the present disclosure is shown;

[0026] Figure 3A is a partial schematic diagram of a rotating anode X-ray tube according to the present disclosure;

[0027] Figure 3B is a schematic diagram of a vibration reduction structure of a rotating anode X-ray tube according to the present disclosure;

[0028] Figure 3C shows a vibration reduction structure according to embodiment 1 of the present disclosure;

[0029] Figure 3D shows a vibration reduction structure according to embodiment 2 of the present disclosure;

[0030] Figure 3E shows a vibration reduction structure according to embodiment 3 of the present disclosure;

[0031] also, Figure 3F A vibration damping structure according to Example 4 of the present disclosure is shown. Figure 3G An exploded view showing the vibration reduction structure of Example 4 of the present disclosure; and

[0032] Figure 3H shows a cross-sectional view of a squirrel cage according to embodiment 4 of the present disclosure, Figure 3I A schematic diagram showing the disassembly of a squirrel cage according to embodiment 4 of the present disclosure is shown. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] In order to enable those skilled in the art to better understand the solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present disclosure.

[0035] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present disclosure and the above-described drawings are used to distinguish similar objects and are not necessarily used to describe a particular sequential or chronological order. It should be understood that the terms thus used can be interchanged under appropriate circumstances so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, a method, a system, a product, or an apparatus including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products, or apparatuses.

[0036] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be understood that when the terms "comprise" and / or "include" are used in the specification, they indicate the presence of the features, steps, operations, devices, components, and / or combinations thereof.

[0037] According to a first aspect of the present disclosure, an X-ray tube-based medical detection system is provided. Wherein Figure 2 A schematic diagram of the medical detection system is shown, referring to Figure 2 As shown, the medical detection system includes an X-ray emitting device 1, an X-ray imaging device 2, and an image processing device 3, wherein the X-ray emitting device 1 includes an X-ray tube 4 for emitting X-rays; the X-ray imaging device 2 is configured to generate corresponding images based on the X-rays emitted by the X-ray emitting device 1; and the image processing device 3 is in communication with the X-ray imaging device 2 and is configured to perform image processing on the images generated by the X-ray imaging device 2. Wherein, Figure 3A is a partial schematic diagram of a rotating anode X-ray tube according to the present disclosure, which shows the anode part of the X-ray tube 4. Referring to Figure 3A As shown, the X-ray tube includes a tube core 10 and a tube sleeve 20, wherein the rear end of the tube core 10 is connected to the tube sleeve 20 by a first support 21. Moreover, the tube core 10 includes a bearing assembly 100, an anode target disc 200, and a cathode 300, wherein the cathode 300 projects electrons to the anode target disc 200. Wherein, referring to Figure 3B As shown, the bearing assembly 100 includes a bearing seat 130 and a bearing 110. Wherein, the bearing 110 is connected to the anode target disc 200, so that the anode target disc 200 can rotate relative to the bearing seat 130; the rear end of the bearing 110 is connected to the bearing seat 130, and a damping device 120 is provided between the bearing 110 and the bearing seat 130; and the bearing seat 130 is connected to the first support 21.

[0038] Specifically, unlike the prior art, the present disclosure does not provide a vibration isolation structure between the first support 21 and the bearing 110 of the tube core 10, but further provides a bearing seat 130 and a damping device 120 inside the tube core 10, and realizes vibration isolation between the bearing seat 130 and the bearing 110 through the damping device 120. Among them, the bearing 110, the damping device 120 and the bearing seat 130 jointly constitute the bearing assembly 100 of the tube core 10. Since the vibration of the X-ray tube is generated by the rotation of the anode target disc 200, through the technical solution of the present disclosure, the spread of vibration can be blocked at a position closer to the vibration source, especially inside the tube core 10. Thus, the vibration generated by the vibration source can be effectively isolated. The technical problem that the vibration generated by the rotating anode assembly cannot be effectively blocked in the existing X-ray-based medical detection system, resulting in fragmentation of the tube core shell and deterioration of the image quality of the imaging, accompanied by noise, is solved.

[0039] Optionally, as shown in Figure 3A and Figure 3B , the tube core 10 includes a tube core shell 400 accommodating the bearing assembly 100, the anode target disc 200 and the cathode 300, and the rear end of the tube core shell 400 is connected with the bearing seat 130. And wherein the tube sleeve 20 is also provided with a second support 22 for fixing the tube core shell 400, and the tube core shell 400 is also fixed in the tube sleeve 20 through the second support 22.

[0040] Thus, the rear end of the tube core shell 400 is connected with the bearing seat 130, so that the vibration generated by the vibration source is isolated by the damping device 120 arranged in the tube core 10 (i.e. in the tube core shell 400), so that it will not further spread to the tube core shell 400. And further, the vibration generated by the vibration source will not spread to the tube sleeve 20 via the tube core shell 400 and the second support 22. Thus, the scheme of the present disclosure can effectively block the vibration from all the spreading branches, thereby further enhancing the damping effect. And the present disclosure can also effectively prevent the vibration from spreading to the tube sleeve 20, thereby avoiding the influence of the vibration on the imaging quality.

[0041] Specifically, referring to Figure 3B , the bearing 110 may, for example, include a mandrel 111 and a sleeve 113, wherein a part of the mandrel 111 is rotatably fixed in the sleeve 113 (e.g. supported in the sleeve 113 by a ball bearing 112), so that the mandrel 111 can rotate relative to the sleeve 113. The rear end of the sleeve 113 is connected with the bearing seat 130, and the damping device 120 is arranged between the sleeve 113 and the bearing seat 130.

[0042] In addition, Figure 3C a damping structure according to Embodiment 1 of the present disclosure is shown.

[0043] Reference is made to Fig. 1, which shows a schematic view of a vibration damping structure according to an embodiment of the present disclosure. Figure 3C As shown in Fig. 1, the vibration damping device 120 is a metal rubber sheet 120. The metal rubber is made by winding metal helical wires and molding processing, and mainly provides damping. When the rotating anode assembly inside the X-ray tube vibrates, the metal helical wires inside the metal rubber will stick or slip relative to each other, converting the mechanical energy of the rotating assembly vibration into internal energy through dry friction and dissipating it, achieving the effect of damping and vibration reduction.

[0044] Preferably, the metal rubber sheet 120 is arranged in a pre-compressed manner between the bearing seat 130 and the bearing 110. For example, the pre-compression amount of the metal rubber sheet 120 in the radial direction can be 5-10% of the diameter of the metal rubber sheet 120, and for another example, the pre-compression amount of the metal rubber sheet 120 in the axial direction can be 1-5% of the thickness of the metal rubber sheet 120. Thus, after the metal rubber sheet 120 is pre-compressed by the above proportions, it can maintain appropriate elasticity, so as to more effectively block the vibration from the bearing 110 to the bearing seat 130.

[0045] Preferably, the end surface of the bearing seat 130 opposite to the bearing 110 is provided with a recess 131, the bearing 110 is provided with a protrusion 114 opposite to the recess 131, the inner side surface of the side wall 132 of the recess 131 cooperates with the outer side surface of the protrusion 114, and the metal rubber sheet 120 is arranged between the surfaces of the recess 131 and the protrusion 114 opposite in the axial direction, the bearing 110 is provided with a first flange 115 surrounding the protrusion 114 and protruding in the radial direction, and the end surface of the side wall 132 is connected (for example, by screws) with the first flange 115. Thus, the present disclosure can use the end surfaces of the side wall 132 of the recess 131 and the first flange 115 as the working surfaces abutting against each other, achieving the positioning of the end surfaces. And the recess 131 and the protrusion 114 can achieve the positioning in the radial direction. And through the metal rubber sheet 120, the conduction of vibration from the end of the protrusion 114 to the end of the recess 131 can be blocked.

[0046] Preferably, the side wall 132 of the recess 131 can be provided with a plurality of exhaust holes 133 communicating with the recess 131, for example, the exhaust holes 133 can be even in number and symmetrically arranged relative to the center of the recess 131. Thus, the air inside the recess 131 can be discharged through the exhaust holes 133.

[0047] In addition, Figure 3D Fig. 1 shows a vibration damping structure according to an embodiment of the present disclosure.

[0048] Reference is made to Fig. 1, which shows a schematic view of a vibration damping structure according to an embodiment of the present disclosure. Figure 3DAs shown, the damping device 120 is a metal rubber ring 120. Also, the end face of the bearing seat 130 opposite to the bearing 110 is provided with a recess 131, and the bearing 110 is provided with a protrusion 114 opposite to the recess 131, and the metal rubber ring 120 is arranged between the inner side surface of the side wall 132 of the recess 131 and the outer side surface of the protrusion 114. Thus, by arranging the metal rubber ring 120 between the inner side surface of the side wall 132 of the recess 131 and the outer side surface of the protrusion 114, the present disclosure can effectively cut off the vibration conduction between the side wall of the protrusion 114 and the side wall of the recess 131.

[0049] Also, preferably, the bearing 110 is provided with a first flange 115 surrounding the protrusion 114 and protruding in the radial direction, and the end face of the side wall 132 can be connected with the first flange 115, for example, by screws, and the bearing 110 is further provided with a second flange 116 between the protrusion 114 and the first flange 115, wherein the end face of the second flange 116 abuts against the metal rubber ring 120 and the outer side surface of the second flange 116 cooperates with the inner side surface of the side wall 132. Thus, the present disclosure can use the end face of the side wall 132 of the recess 131 and the end face of the first flange 115 as working surfaces abutting against each other to achieve the positioning of the end faces (Note, refer to Figure 3D As shown, a gap can be left between the end of the protrusion 114 and the bottom of the recess 131). And the positioning in the radial direction can be achieved by the side wall 132 of the recess 131 and the second flange 116. And by the metal rubber ring 120, the conduction of vibration from the side wall of the protrusion 114 to the side wall of the recess 131 can be cut off.

[0050] Preferably, the side wall 132 of the recess 131 is provided with a plurality of exhaust holes 133 communicating with the recess 131, and the exhaust holes 133 are even in number and symmetrically arranged with respect to the center of the recess 131. Thus, the air in the recess 131 can be exhausted through the exhaust holes 133.

[0051] Also preferably, the metal rubber ring 120 is arranged in a pre-compressed manner between the bearing seat 130 and the bearing 110, wherein the pre-compression amount of the metal rubber ring 120 in the radial direction is 5-10% of the diameter of the metal rubber ring 120, and the pre-compression amount of the metal rubber ring 120 in the axial direction is 1-5% of the thickness of the metal rubber ring 120. Thus, after the metal rubber ring 120 is pre-compressed in the above proportions, it can maintain appropriate elasticity, so as to more effectively cut off the vibration conducted from the bearing 110 to the bearing seat 130.

[0052] In addition, compared with the use of a metal rubber sheet, the use of a metal rubber ring can achieve the damping effect with a smaller volume structure.

[0053] In addition, Figure 3EA damping structure according to Embodiment 3 of the present disclosure is shown.

[0054] Referring to Figure 3E As shown, the damping device 120 is a metal rubber ring 120. Also, the end face of the bearing housing 130 opposite to the bearing 110 is provided with a recessed portion 131, the bearing 110 is provided with a protruding portion 114 opposite to the recessed portion 131, and the metal rubber ring 120 is arranged between the inner side surface of the side wall 132 of the recessed portion 131 and the outer side surface of the protruding portion 114. Thus, the present disclosure can effectively cut off the vibration conduction between the side wall of the protruding portion 114 and the side wall of the recessed portion 131 by arranging the metal rubber ring 120 between the inner side surface of the side wall 132 of the recessed portion 131 and the outer side surface of the protruding portion 114.

[0055] Also, preferably, the bearing 110 is provided with a first flange 115 surrounding the protruding portion 114 and protruding in the radial direction, the end face of the side wall 132 can be connected with the end face of the first flange 115, for example, by screws, and the bearing 110 is further provided with a second flange 116 between the protruding portion 114 and the first flange 115, wherein the end face of the second flange 116 abuts against the metal rubber ring 120 and the outer side surface of the second flange 116 cooperates with the inner side surface of the side wall 132. Thus, the present disclosure can use the end face of the side wall 132 of the recessed portion 131 and the end face of the first flange 115 as working surfaces abutting against each other to achieve positioning of the end faces (Note, refer to Figure 3E As shown, a gap can be left between the end of the protruding portion 114 and the bottom of the recessed portion 131). And the positioning in the radial direction can be achieved by the side wall 132 of the recessed portion 131 and the second flange 116. And the conduction of vibration from the side wall of the protruding portion 114 to the side wall of the recessed portion 131 can be cut off by the metal rubber ring 120.

[0056] Preferably, the side wall 132 of the recessed portion 131 is provided with a plurality of exhaust holes 133 communicating with the recessed portion 131, the exhaust holes 133 are even in number and are symmetrically arranged with respect to the center of the recessed portion 131. Thus, the air in the recessed portion 131 can be exhausted through the exhaust holes 133

[0057] Also preferably, the metal rubber ring 120 is arranged in a pre-compressed manner between the bearing housing 130 and the bearing 110, wherein the pre-compression amount of the metal rubber ring 120 in the radial direction is 5-10% of the diameter of the metal rubber ring 120, and the pre-compression amount of the metal rubber ring 120 in the axial direction is 1-5% of the thickness of the metal rubber ring 120. Thus, the metal rubber ring 120 can maintain appropriate elasticity after being pre-compressed in the above proportions, so that the conduction of vibration from the bearing 110 to the bearing housing 130 can be more effectively cut off.

[0058] In addition, compared with the metal rubber ring, the metal rubber ring can achieve the damping effect with a smaller structure.

[0059] In addition, Figure 3F A damping structure according to Embodiment 4 of the present disclosure is shown. Figure 3G A disassembly view of the damping structure of Embodiment 4 of the present disclosure is shown.

[0060] Referring to Figure 3F - Figure 3G As shown, the damping device 120 includes a bent squirrel cage structure 121 and a metal rubber ring 122 arranged in the bent squirrel cage structure 121. The bent squirrel cage structure 121 is connected with the bearing seat 130, and the bent squirrel cage structure 121 is sleeved on the rear end of the bearing 110 and connected with the bearing 110.

[0061] Specifically, the damping device 120 is fixed together through the inner hole of the bent squirrel cage structure 121 and the outer circle of the rear end of the bearing 110. The damping device 120 and the bearing seat 130 at the rear end are fixed together through a plurality of screws. In order to further increase the connection strength of the damping device 120 and the bearing 110, the connection part can be welded all around.

[0062] Therefore, in the structure of the damping device 120 of the present embodiment, the bent squirrel cage structure 121 is the main force-bearing component in the damping device 120 and mainly plays a supporting role. By adjusting the structural parameters of the cage bars of the bent squirrel cage structure 121, the connection stiffness of the bearing 110 and the bearing seat 130 can be adjusted. The metal rubber ring 122 can provide damping, and by adjusting the structural parameters of the metal rubber ring 122, the connection damping characteristics of the bearing 110 and the bearing seat 130 can be adjusted. Thus, the connection stiffness and damping effect of the damping device 120 can be adjusted.

[0063] In addition, Figure 3H A cross-sectional view of the squirrel cage according to Embodiment 4 of the present disclosure is shown, Figure 3I A disassembly view of the squirrel cage according to Embodiment 4 of the present disclosure is shown.

[0064] Optionally, referring to Figure 3H and Figure 3IAs shown, the bent squirrel cage structure 121 includes a bent squirrel cage 1211, a limiting ring 1212, and an end cover 1213. The bent squirrel cage 1211 includes a sleeve joint portion 1211a connected with the bearing 110, and a bent portion 1211b bent outward from the sleeve joint portion 1211a. The limiting ring 1212, the metal rubber ring 122, and the end cover 1213 are sequentially sleeved outside the sleeve joint portion 1211a, and the end cover 1213, the limiting ring 1212, and the flange 1211c at the rear end of the bent portion 1211b have corresponding mounting holes, so that they can be fixed together by screws and further connected with the bearing seat 130 by screws. The front side of the end cover 1213 is formed with a recess for accommodating the metal rubber ring 122, for covering the metal rubber ring 122.

[0065] In addition, with reference to Figure 3G As shown in the fourth embodiment,

[0066] 1) The radial runout of the inner circular surface a of the bearing seat 130 and the end surface runout of surface b are controlled within 0.01 mm;

[0067] 2) The radial runout of the outer circular surface c of the end cover 1213 and the end surface runout of surface d are controlled within 0.01 mm;

[0068] 3) The radial runout of the inner circular surface e of the bent squirrel cage 1211 and the end surface runout of surface f are controlled within 0.01 mm;

[0069] 4) The inner circular surface e of the bent squirrel cage 1211 and the outer circular surface g of the bearing 110 adopt an interference fit, and the interference amount is 0-0.01 mm;

[0070] 5) The radial runout of the outer circular surface g of the bearing 110 and the end surface runout of surface h are controlled within 0.01 mm;

[0071] 6) After the bearing seat 130, the damping device 120, and the bearing 110 are assembled, the distance between the end surface j of the bearing seat 130 and the damping device end surface j, and the bearing end surface i is 0.1-0.5 mm;

[0072] 7) The end cover 1213 is made of the same material as the bearing seat 130, and the bent squirrel cage 1211 is made of the same material as the bearing 110.

[0073] According to a second aspect of the present disclosure, a rotary anode X-ray tube is provided. Figure 3A is a partial schematic view of a rotary anode X-ray tube according to the present disclosure. With reference to Figure 3AAccording to a first aspect of the present disclosure, an X-ray tube is provided, comprising a tube core 10 and a tube envelope 20, wherein a rear end of the tube core 10 is connected to the tube envelope 20 by a first support 21. Further, the tube core 10 comprises a bearing assembly 100, an anode target disk 200 and a cathode 300, wherein the cathode 300 projects electrons to the anode target disk 200. Herein, reference is made to the first aspect of the present disclosure. Figure 3B According to a first aspect of the present disclosure, an X-ray tube is provided, comprising a tube core 10 and a tube envelope 20, wherein a rear end of the tube core 10 is connected to the tube envelope 20 by a first support 21. Further, the tube core 10 comprises a bearing assembly 100, an anode target disk 200 and a cathode 300, wherein the cathode 300 projects electrons to the anode target disk 200. Herein, reference is made to the first aspect of the present disclosure.

[0074] For further description of the rotating anode X-ray tube, reference is made to the first aspect of the present disclosure.

[0075] According to a first aspect of the present disclosure, an X-ray tube is provided, comprising a tube core 10 and a tube envelope 20, wherein a rear end of the tube core 10 is connected to the tube envelope 20 by a first support 21. Further, the tube core 10 comprises a bearing assembly 100, an anode target disk 200 and a cathode 300, wherein the cathode 300 projects electrons to the anode target disk 200. Herein, reference is made to the first aspect of the present disclosure.

[0076] For further description of the tube core 10, reference is made to the first aspect of the present disclosure.

[0077] According to a first aspect of the present disclosure, an X-ray tube is provided, comprising a tube core 10 and a tube envelope 20, wherein a rear end of the tube core 10 is connected to the tube envelope 20 by a first support 21. Further, the tube core 10 comprises a bearing assembly 100, an anode target disk 200 and a cathode 300, wherein the cathode 300 projects electrons to the anode target disk 200. Herein, reference is made to the first aspect of the present disclosure.

[0078] For further description of the rotating anode assembly, reference is made to the first aspect of the present disclosure.

[0079] Thus, by the technical solution of the present disclosure, the propagation of the vibration can be blocked at a position closer to the vibration source, especially inside the tube core. Thus, the vibration generated by the vibration source can be effectively blocked. The technical problem that the vibration generated by the rotating anode assembly cannot be effectively blocked in the prior art, which leads to the cracking of the tube core envelope and the deterioration of the image quality of the imaging, and the accompanying noise, is solved.

[0080] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples herein are not intended to limit the scope of the disclosure unless otherwise specifically stated. It is to be understood that the drawings are not necessarily to scale as the dimensions of the parts shown are for the purpose of illustration and description only and not to limit the scope of the disclosure. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered within the scope of the disclosure. In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not limiting. Other examples of the exemplary embodiments can therefore have different values. It is noted that like numbers and letters on the figures identify like parts throughout the disclosure, and therefore, once defined, do not need to be further discussed.

[0081] For purposes of the description hereinafter, spatial or directional terms, such as "above", "below", "up", "down", "left", "right", "horizontal", "vertical", and the like, are used with reference to the orientation of the device as shown in the drawings. It is to be understood that such terms are merely used for convenience and are not to be construed as limiting the disclosure to any particular orientation or configuration. Terms concerning attachments, coupling and the like, such as "connected", "attached", "supported", and the like, are to be construed as permitting some play in the attachment or connection of devices, unless otherwise specified herein.

[0082] In the description of the present disclosure, it should be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present disclosure and simplifying the description, without the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the protection scope of the present disclosure; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component itself.

[0083] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An X-ray-based medical detection system, comprising: X-ray emitting device (1), X-ray imaging device (2) and image processing device (3), wherein The X-ray emitting device (1) comprises an X-ray tube (4) for emitting X-rays; The X-ray imaging device (2) is used to generate corresponding images based on the X-rays emitted by the X-ray emitting device (1); and The image processing device (3) is in communication with the X-ray imaging device (2) and is used to process the image generated by the X-ray imaging device (2), wherein The X-ray tube (4) comprises: a tube core (10) and a tube sleeve (20), wherein the rear end of the tube core (10) is fixedly connected to the tube sleeve (20) via a first bracket (21), and the tube core (10) comprises a bearing assembly (100), an anode target disk (200) and a cathode (300), wherein the cathode (300) projects electrons onto the anode target disk (200), and is characterized in that: The bearing assembly (100) includes a bearing seat (130) and a bearing (110), wherein The bearing (110) is connected to the anode target disk (200), so that the anode target disk (200) can rotate relative to the bearing seat (130); The rear end of the bearing (110) is connected to the bearing seat (130), and a vibration damping device (120) is provided between the bearing (110) and the bearing seat (130); and The bearing seat (130) is connected to the first bracket (21), wherein the vibration reduction device (120) is a metal rubber sheet (120), and wherein The metal rubber sheet (120) is arranged between the bearing seat (130) and the bearing (110) in a pre-compression manner, wherein the pre-compression amount of the metal rubber sheet (120) in the radial direction is 5-10% of the diameter of the metal rubber sheet (120), and the pre-compression amount of the metal rubber sheet (120) in the axial direction is 1-5% of the thickness of the metal rubber sheet (120), and wherein The bearing seat (130) is provided with a recessed portion (131) on the end surface opposite to the bearing (110), the bearing (110) is provided with a protrusion (114) opposite to the recessed portion (131), the inner surface of the side wall (132) of the recessed portion (131) is matched with the outer surface of the protrusion (114), and the metal rubber sheet (120) is provided between the axially opposite surfaces of the recessed portion (131) and the protrusion (114), the bearing (110) is provided with a first flange (115) surrounding the protrusion (114) and protruding in the radial direction, the end surface of the side wall (132) is connected to the first flange (115), and wherein The side wall (132) of the recessed portion (131) is provided with a plurality of exhaust holes (133) communicating with the recessed portion (131), wherein the exhaust holes (133) are an even number and are symmetrically arranged relative to the center of the recessed portion (131).

2. The system according to claim 1, wherein: The tube core (10) includes a tube core shell (400) that accommodates the bearing assembly (100), the anode target plate (200) and the cathode (300), and the rear end of the tube core shell (400) is connected to the bearing seat (130), and wherein A second bracket (22) for fixing the tube core shell (400) is also provided in the tube sleeve (20), and the tube core shell (400) is also fixed in the tube sleeve (20) through the second bracket (22).

3. The system according to claim 1 or 2, characterized in that The vibration damping device (120) is a metal rubber ring (120).

4. The system according to claim 3, characterized in that The metal rubber ring (120) is arranged between the bearing seat (130) and the bearing (110) in a pre-compression manner, wherein the pre-compression amount of the metal rubber ring (120) in the radial direction is 5-10% of the diameter of the metal rubber ring (120), and the pre-compression amount of the metal rubber ring (120) in the axial direction is 1-5% of the thickness of the metal rubber ring (120), and wherein The end surface of the bearing seat (130) opposite to the bearing (110) is provided with a recessed portion (131), the bearing (110) is provided with a protrusion (114) opposite to the recessed portion (131), the metal rubber ring (120) is provided between the inner surface of the side wall (132) of the recessed portion (131) and the outer surface of the protrusion (114), and the bearing (110) is provided with a metal rubber ring (120) surrounding the protrusion (114) and convex in the radial direction. The first flange (115) is provided on the bearing (110), the end surface of the side wall (132) is connected to the first flange (115), and the bearing (110) is further provided with a second flange (116) between the protrusion (114) and the first flange (115), wherein the end surface of the second flange (116) abuts against the metal rubber ring (120) and the outer surface of the second flange (116) cooperates with the inner surface of the side wall (132), and wherein The side wall (132) of the recessed portion (131) is provided with a plurality of exhaust holes (133) communicating with the recessed portion (131), wherein the exhaust holes (133) are an even number and are symmetrically arranged relative to the center of the recessed portion (131).

5. The system according to claim 1 or 2, characterized in that The vibration damping device (120) is a metal rubber ring (120), and wherein the metal rubber ring (120) is arranged between the bearing seat (130) and the bearing (110) in a pre-compression manner, wherein the pre-compression amount of the metal rubber ring (120) in the radial direction is 5-10% of the diameter of the metal rubber ring (120), and the pre-compression amount of the metal rubber ring (120) in the axial direction is 1-5% of the cross-sectional diameter of the metal rubber ring (120), and wherein the end surface of the bearing seat (130) opposite to the bearing (110) is provided with a recessed portion (131), the bearing (110) is provided with a protrusion (114) opposite to the recessed portion (131), and the metal rubber ring (120) is arranged on the side wall (114) of the recessed portion (131). The bearing (110) is provided with a first flange (115) surrounding the protrusion (114) and protruding in the radial direction between the inner surface of the bearing (110) and the outer surface of the protrusion (114), the end surface of the side wall (132) is connected to the first flange (115), and the bearing (110) is further provided with a second flange (116) between the protrusion (114) and the first flange (115), wherein the outer surface of the second flange (116) is matched with the inner surface of the side wall (132), and the side wall (132) of the recessed portion (131) is provided with a plurality of exhaust holes (133) communicating with the recessed portion (131), the exhaust holes (133) are an even number and are symmetrically arranged relative to the center of the recessed portion (131), or The vibration damping device (120) comprises: a bent squirrel cage structure (121) and a metal rubber ring (122) arranged in the bent squirrel cage structure (121), wherein the rear end of the bent squirrel cage structure (121) is connected to the bearing seat (130), and the bent squirrel cage structure (121) is sleeved on the rear end of the bearing (110) and connected to the bearing (110).

6. An X-ray tube comprising: A tube core (10) and a tube sleeve (20), wherein the rear end of the tube core (10) is fixedly connected to the tube sleeve (20) via a first bracket (21), and the tube core (10) comprises a bearing assembly (100), an anode target disk (200) and a cathode (300), wherein the cathode (300) projects electrons onto the anode target disk (200), characterized in that: The bearing assembly (100) includes a bearing seat (130) and a bearing (110), wherein The bearing (110) is connected to the anode target disk (200), so that the anode target disk (200) can rotate relative to the bearing seat (130); The rear end of the bearing (110) is connected to the bearing seat (130), and a vibration damping device (120) is provided between the bearing (110) and the bearing seat (130); and The bearing seat (130) is connected to the first bracket (21), wherein the vibration reduction device (120) is a metal rubber sheet (120), and wherein The metal rubber sheet (120) is arranged between the bearing seat (130) and the bearing (110) in a pre-compression manner, wherein the pre-compression amount of the metal rubber sheet (120) in the radial direction is 5-10% of the diameter of the metal rubber sheet (120), and the pre-compression amount of the metal rubber sheet (120) in the axial direction is 1-5% of the thickness of the metal rubber sheet (120), and wherein The bearing seat (130) is provided with a recessed portion (131) on the end surface opposite to the bearing (110), the bearing (110) is provided with a protrusion (114) opposite to the recessed portion (131), the inner surface of the side wall (132) of the recessed portion (131) is matched with the outer surface of the protrusion (114), and the metal rubber sheet (120) is provided between the axially opposite surfaces of the recessed portion (131) and the protrusion (114), the bearing (110) is provided with a first flange (115) surrounding the protrusion (114) and protruding in the radial direction, the end surface of the side wall (132) is connected to the first flange (115), and wherein The side wall (132) of the recessed portion (131) is provided with a plurality of exhaust holes (133) communicating with the recessed portion (131), wherein the exhaust holes (133) are an even number and are symmetrically arranged relative to the center of the recessed portion (131).

7. A tube core (10) for an X-ray tube, comprising a bearing assembly (100), an anode target disk (200), and a cathode (300), wherein the cathode (300) projects electrons onto the anode target disk (200), characterized in that: The bearing assembly (100) includes a bearing seat (130) and a bearing (110), wherein The bearing (110) is connected to the anode target disk (200) so that the anode target disk (200) can rotate relative to the bearing seat (130); and The rear end of the bearing (110) is connected to the bearing seat (130), and a vibration damping device (120) is provided between the bearing (110) and the bearing seat (130), wherein the vibration damping device (120) is a metal rubber sheet (120), and wherein The metal rubber sheet (120) is arranged between the bearing seat (130) and the bearing (110) in a pre-compression manner, wherein the pre-compression amount of the metal rubber sheet (120) in the radial direction is 5-10% of the diameter of the metal rubber sheet (120), and the pre-compression amount of the metal rubber sheet (120) in the axial direction is 1-5% of the thickness of the metal rubber sheet (120), and wherein The bearing seat (130) is provided with a recessed portion (131) on the end surface opposite to the bearing (110), the bearing (110) is provided with a protrusion (114) opposite to the recessed portion (131), the inner surface of the side wall (132) of the recessed portion (131) is matched with the outer surface of the protrusion (114), and the metal rubber sheet (120) is provided between the axially opposite surfaces of the recessed portion (131) and the protrusion (114), the bearing (110) is provided with a first flange (115) surrounding the protrusion (114) and protruding in the radial direction, the end surface of the side wall (132) is connected to the first flange (115), and wherein The side wall (132) of the recessed portion (131) is provided with a plurality of exhaust holes (133) communicating with the recessed portion (131), wherein the exhaust holes (133) are an even number and are symmetrically arranged relative to the center of the recessed portion (131).

8. A rotating anode assembly for an X-ray tube, comprising a bearing assembly (100) and an anode target plate (200), characterized in that: The bearing assembly (100) includes a bearing seat (130) and a bearing (110), wherein The bearing (110) is connected to the anode target disk (200) so that the anode target disk (200) can rotate relative to the bearing seat (130); and The rear end of the bearing (110) is connected to the bearing seat (130), and a vibration damping device (120) is provided between the bearing (110) and the bearing seat (130), wherein the vibration damping device (120) is a metal rubber sheet (120), and wherein The metal rubber sheet (120) is arranged between the bearing seat (130) and the bearing (110) in a pre-compression manner, wherein the pre-compression amount of the metal rubber sheet (120) in the radial direction is 5-10% of the diameter of the metal rubber sheet (120), and the pre-compression amount of the metal rubber sheet (120) in the axial direction is 1-5% of the thickness of the metal rubber sheet (120), and wherein The bearing seat (130) is provided with a recessed portion (131) on the end surface opposite to the bearing (110), the bearing (110) is provided with a protrusion (114) opposite to the recessed portion (131), the inner surface of the side wall (132) of the recessed portion (131) is matched with the outer surface of the protrusion (114), and the metal rubber sheet (120) is provided between the axially opposite surfaces of the recessed portion (131) and the protrusion (114), the bearing (110) is provided with a first flange (115) surrounding the protrusion (114) and protruding in the radial direction, the end surface of the side wall (132) is connected to the first flange (115), and wherein The side wall (132) of the recessed portion (131) is provided with a plurality of exhaust holes (133) communicating with the recessed portion (131), wherein the exhaust holes (133) are an even number and are symmetrically arranged relative to the center of the recessed portion (131).

Images