CN111146057A - Anode rotating mechanism, anode assembly, X-ray tube and X-ray device - Google Patents
Anode rotating mechanism, anode assembly, X-ray tube and X-ray device Download PDFInfo
- Publication number
- CN111146057A CN111146057A CN201911367498.4A CN201911367498A CN111146057A CN 111146057 A CN111146057 A CN 111146057A CN 201911367498 A CN201911367498 A CN 201911367498A CN 111146057 A CN111146057 A CN 111146057A
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- China
- Prior art keywords
- bearing
- anode
- mandrel
- rotating mechanism
- wall
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/08—Anodes; Anti cathodes
- H01J35/10—Rotary anodes; Arrangements for rotating anodes; Cooling rotary anodes
- H01J35/101—Arrangements for rotating anodes, e.g. supporting means, means for greasing, means for sealing the axle or means for shielding or protecting the driving
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/24—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof
Abstract
The invention discloses an anode rotating mechanism, an anode assembly, an X-ray tube and an X-ray device, which comprise a mandrel, wherein the mandrel is provided with a front rail and a rear rail, and balls are arranged on the front rail and the rear rail; the bearing is sleeved outside the mandrel and is in contact connection with the ball through the inner wall of the annular concave position; the bearing outer sleeve is sleeved on the outer wall of the bearing, and a thinning side wall is arranged at one end, close to the front rail, of the bearing outer sleeve. When the bearing is used, the outer wall of the bearing outer sleeve is provided with the outer rotor, the outer rotor is connected with the target disc, the thinning side wall on the bearing outer sleeve enables the bearing to be located between the part of the front track and the outer rotor to form a gap, the stress of the front track can be reduced, the heat from the target disc is prevented from being directly conducted to the front track, the heat received by the front track is reduced, and the service life of a product is prolonged.
Description
Technical Field
The invention relates to the technical field of X-ray tubes, in particular to an anode rotating mechanism, an anode assembly, an X-ray tube and an X-ray device.
Background
The anode assembly of current X-ray tubes generally comprises a front rail and a rear rail, the front rail being close to the target disk and being both a fulcrum of stress and a concentration point of heat. When the anode assembly rotates at a high speed, the front rail is easy to wear due to serious heating, so that the anode assembly has the problems of jumping, blockage and even blockage.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an anode rotating mechanism which can reduce the stress and heating of a front rail and prolong the service life of a product.
The invention also provides an anode assembly with the anode rotating mechanism.
The invention also provides an X-ray tube with the anode assembly.
The invention also provides an X-ray device with the X-ray tube.
The anode rotating mechanism comprises a mandrel, a front rail and a rear rail, wherein the mandrel is provided with the front rail and the rear rail, and balls are arranged on the front rail and the rear rail; the two ends of the bearing are provided with annular concave positions, the bearing is sleeved on the outer side of the mandrel and is in contact connection with the balls through the inner walls of the annular concave positions; the bearing housing is sleeved on the outer wall of the bearing, the bearing housing is sleeved on the outer wall of the bearing and is close to one end of the front track, and the thinning side wall is arranged at one end of the front track.
The anode rotating mechanism provided by the embodiment of the invention is suitable for an anode assembly of an X-ray tube, and has at least the following beneficial effects: when the bearing is used, the outer wall of the bearing outer sleeve is provided with the outer rotor, the outer rotor is connected with the target disc, the thinning side wall on the bearing outer sleeve enables the bearing to be located between the part of the front track and the outer rotor to form a gap, the stress of the front track can be reduced, the heat from the target disc is prevented from being directly conducted to the front track, the heat received by the front track is reduced, and the service life of a product is prolonged.
According to some embodiments of the invention, the bearing comprises a front bearing, a middle bearing and a rear bearing which are sequentially sleeved outside the mandrel, an adjusting ring is arranged at one end of the middle bearing, the annular concave positions are respectively arranged on the front bearing and the rear bearing, an elastic member is sleeved between the middle bearing and the mandrel and used for respectively applying pressure to the front bearing and the rear bearing.
According to some embodiments of the present invention, one end of the middle bearing is provided with a limiting portion, the other end of the middle bearing is movably provided with a retaining ring, one end of the elastic member abuts against the limiting portion, and the other end of the elastic member abuts against the retaining ring.
According to some embodiments of the invention, the adjustment ring is a circular ring with a cut-out, the adjustment ring being snapped onto the mandrel.
According to some embodiments of the invention, the bearing housing is provided with a first limiting hole, and the middle bearing is provided with a second limiting hole or an annular limiting groove adapted to the first limiting hole.
According to some embodiments of the invention, one end of the bearing outer sleeve is provided with a locating flange.
According to some embodiments of the invention, one end of the spindle is provided with a mounting flange.
An anode assembly according to an embodiment of the second aspect of the invention, comprises: a base provided with a bearing bracket; according to the anode rotating mechanism of the embodiment of the first aspect of the present invention, the mandrel is connected to the bearing holder; the outer rotor is sleeved on the outer wall of the bearing outer sleeve; and the target disc is connected with the outer rotor.
The anode assembly according to the embodiment of the invention has at least the following beneficial effects: the thinning lateral wall on the bearing outer sleeve enables the bearing to be located between the part of the front rail and the outer rotor to form a gap, stress of the front rail can be reduced, heat from the target plate is prevented from being directly conducted to the front rail, heat received by the front rail is reduced, and the service life of a product is prolonged.
An X-ray tube according to an embodiment of a third aspect of the present invention includes a vacuum vessel; an anode assembly according to an embodiment of the second aspect of the invention, disposed within the vacuum vessel; and the cathode head is arranged in the vacuum container, is positioned on one side of the anode assembly and faces the target disc.
The X-ray tube provided by the embodiment of the invention has at least the following beneficial effects: the thinning lateral wall on the bearing outer sleeve enables the bearing to be located between the part of the front rail and the outer rotor to form a gap, stress of the front rail can be reduced, heat from the target plate is prevented from being directly conducted to the front rail, heat received by the front rail is reduced, and the service life of a product is prolonged.
An X-ray device according to an embodiment of a fourth aspect of the invention comprises an imaging device; an X-ray tube according to an embodiment of a third aspect of the present invention is provided on a side of the imaging device for outputting X-rays to the imaging device.
The X-ray device provided by the embodiment of the invention has at least the following beneficial effects: the thinning lateral wall on the bearing outer sleeve enables the bearing to be located between the part of the front rail and the outer rotor to form a gap, stress of the front rail can be reduced, heat from the target plate is prevented from being directly conducted to the front rail, heat received by the front rail is reduced, and the service life of a product is prolonged.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an anode rotating mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the anode rotation mechanism shown in FIG. 1;
FIG. 3 is a schematic cross-sectional view of an anode assembly according to an embodiment of the invention;
FIG. 4 is an enlarged fragmentary view of circled location A in FIG. 3;
fig. 5 is an exploded view of the structure of the anode rotation mechanism shown in fig. 1.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 and fig. 2, the present embodiment discloses an anode rotation mechanism, which includes a mandrel 100, a bearing and a bearing housing 300; the mandrel 100 is provided with a front rail 110 and a rear rail 120, and the front rail 110 and the rear rail 120 are both provided with balls 101; two ends of the bearing are provided with annular concave positions 201, the bearing is sleeved on the outer side of the mandrel 100 and is in contact connection with the ball 101 through the inner walls of the annular concave positions 201; the bearing housing 300 is sleeved on the outer wall of the bearing, and a thinning side wall 310 is arranged at one end of the bearing housing 300 close to the front rail 110.
Referring to fig. 3 and 4, when in use, the outer rotor 500 is sleeved on the outer wall of the bearing outer sleeve 300, the outer rotor 500 is connected with the target disc 600, the thinned side wall 310 on the bearing outer sleeve 300 enables the bearing to be positioned between the part of the front rail 110 and the outer rotor 500 to form a gap 311, the stress fulcrum of the anode rotating mechanism is transferred from the front rail 110 to the thinned starting end 312 of the bearing outer sleeve 300, which is beneficial to reducing the stress of the front rail 110, and after the heat on the target disc 600 is transferred to the outer rotor 500, the heat is transferred to the middle part of the bearing through the thicker part of the peripheral wall of the bearing outer sleeve 300, so that the heat from the target disc 600 is prevented from being directly transferred to the front rail 110, the heat received by the front rail 110 is reduced. In this embodiment, the thinned sidewall 310 is formed by thinning the outer wall of the bearing outer sleeve 300, and it is contemplated that the thinned sidewall 310 may be formed by thinning the inner wall of the bearing outer sleeve 300 or thinning both the inner wall and the outer wall of the bearing outer sleeve 300, so as to form a gap between the outer rotor 500 and the front rail 110, and prevent heat from the outer rotor 500 from being directly applied to the front rail 110.
Referring to fig. 2 and 5, in order to further improve the reliability of the use, the bearing includes a front bearing 210, a middle bearing 220 and a rear bearing 230 sequentially sleeved outside the spindle 100, an adjusting ring 240 is disposed at one end of the middle bearing 220, annular recesses 201 are respectively disposed on the front bearing 210 and the rear bearing 230, an elastic member 250 is sleeved between the middle bearing 220 and the spindle 100, the elastic member 250 is a spring, and the elastic member 250 is used to apply pressure to the front bearing 210 and the rear bearing 230, so that the front bearing 210 and the rear bearing 230 are in tight contact with the balls 101, and the balls 101 are prevented from jumping when the bearings and the spindle 100 rotate relatively.
Referring to fig. 2 and 5, for the convenience of assembly, one end of the middle bearing 220 is provided with a limit portion 221, the other end of the middle bearing 220 is movably provided with a retaining ring 222, one end of the elastic member 250 abuts against the limit portion 221, and the other end of the elastic member 250 abuts against the retaining ring 222. During assembly, the rear bearing 230 and the middle bearing 220 are sequentially sleeved on the mandrel 100, the elastic member 250 is sleeved between the mandrel 100 and the middle bearing 220, the retainer ring 222 is sleeved on the mandrel 100 to limit the elastic member 250, and then the front bearing 210 is sleeved on the mandrel 100.
Referring to fig. 5, in order to facilitate installation and maintenance, the adjusting ring 240 is a circular ring with a cut, the adjusting ring 240 is used for adjusting an assembly gap, and the circular ring has certain elasticity, and when the front bearing 210, the middle bearing 220 and the rear bearing 230 are assembled, the adjusting ring 240 is fastened to the position of the mandrel 100 between the front bearing 210 and the middle bearing 220, so as to fill the gap between the front bearing 210 and the middle bearing 220, so that the front bearing 210, the middle bearing 220 and the rear bearing 230 are tightly connected, and play is avoided during use. It should be appreciated that the adjusting ring 240 may be disposed between the middle bearing 220 and the front bearing 210, or between the middle bearing 220 and the rear bearing 230, the number of the adjusting rings 240 may be one or more, and when a plurality of adjusting rings 240 are provided, the adjusting rings 240 may be respectively located at both ends of the middle bearing 220.
Referring to fig. 5, a first limiting hole 301 is formed in the bearing housing 300, a second limiting hole or an annular limiting groove 223 adapted to the first limiting hole 301 is formed in the middle bearing 220, and the first limiting hole 301 is used for installing a screw so that the bearing housing 300 and the bearing can be stably connected.
Referring to fig. 2 or 5, for installation convenience, a positioning flange 302 is disposed at one end of the bearing housing 300, so that the bearing housing can be quickly positioned during assembly, which is beneficial to improving assembly efficiency.
Referring to fig. 3, in order to facilitate installation, the installation flange 130 is disposed at one end of the core shaft 100, the installation flange 130 is provided with a threaded hole, and the installation flange 130 is in threaded connection with the external bearing bracket 410, so that quick alignment installation can be achieved, and the assembly efficiency can be improved.
Referring to fig. 3, an anode assembly according to a second embodiment of the present invention comprises a base 400, an anode rotation mechanism according to a first embodiment of the present invention, an outer rotor 500, and a target disc 600, wherein the base 400 is provided with a bearing bracket 410; the mandrel 100 of the anode rotating mechanism is connected with the bearing bracket 410; the outer rotor 500 is sleeved on the outer wall of the bearing outer sleeve 300; the target disk 600 is connected with the outer rotor 500. The outer rotor 500 includes a cylinder and a driving wire wound on an outer wall of the cylinder, the cylinder includes two portions with different magnetic conductivity, and under the action of the driving wire, the two portions of the cylinder are subjected to different magnetic field forces, so that the outer rotor 500 rotates. The thinned side wall 310 on the bearing outer sleeve 300 enables a gap 312 to be formed between the part of the bearing located on the front rail 110 and the outer rotor 500, so that the stress of the front rail 110 can be reduced, the heat from the target plate 600 can be prevented from being directly conducted to the front rail 110, the heat received by the front rail 110 can be reduced, and the service life of the product can be prolonged.
An X-ray tube disclosed in an embodiment of a third aspect of the present invention includes a vacuum container, a cathode head, an anode assembly according to an embodiment of the second aspect of the present invention, the anode assembly being disposed in the vacuum container; the cathode taps are disposed in the vacuum vessel at one side of the anode assembly and toward the target disk 600. The thinned side wall 310 on the bearing outer sleeve 300 enables a gap 312 to be formed between the part of the bearing located on the front rail 110 and the outer rotor 500, so that the stress of the front rail 110 can be reduced, the heat from the target plate 600 can be prevented from being directly conducted to the front rail 110, the heat received by the front rail 110 can be reduced, and the service life of the product can be prolonged.
An X-ray device disclosed in an embodiment of a fourth aspect of the present invention includes an imaging device and an X-ray tube according to an embodiment of the third aspect of the present invention, the X-ray tube being disposed on a side of the imaging device for outputting X-rays to the imaging device. The thinned side wall 310 on the bearing outer sleeve 300 enables a gap 312 to be formed between the part of the bearing located on the front rail 110 and the outer rotor 500, so that the stress of the front rail 110 can be reduced, the heat from the target plate 600 can be prevented from being directly conducted to the front rail 110, the heat received by the front rail 110 can be reduced, and the service life of the product can be prolonged.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. An anode rotation mechanism, comprising:
the mandrel (100) is provided with a front rail (110) and a rear rail (120), and balls (101) are arranged on the front rail (110) and the rear rail (120);
the two ends of the bearing are provided with annular concave positions (201), the bearing is sleeved on the outer side of the mandrel (100) and is in contact connection with the ball (101) through the inner wall of the annular concave positions (201);
bearing housing (300), the cover is established the outer wall of bearing, bearing housing (300) are gone up and are close to the one end of preceding track (110) is provided with attenuate lateral wall (310).
2. The anode rotating mechanism according to claim 1, wherein the bearing comprises a front bearing (210), a middle bearing (220) and a rear bearing (230) which are sequentially sleeved on the outer side of the mandrel (100), an adjusting ring (240) is arranged at one end of the middle bearing (220), the annular concave positions (201) are respectively arranged on the front bearing (210) and the rear bearing (230), an elastic member (250) is sleeved between the middle bearing (220) and the mandrel (100), and the elastic member (250) is used for respectively applying pressure to the front bearing (210) and the rear bearing (230).
3. The anode rotating mechanism according to claim 2, wherein one end of the middle bearing (220) is provided with a limiting part (221), the other end of the middle bearing (220) is movably provided with a retaining ring (222), one end of the elastic member (250) abuts against the limiting part (221), and the other end of the elastic member (250) abuts against the retaining ring (222).
4. The anode rotating mechanism according to claim 2, wherein the adjusting ring (240) is a ring with a notch, and the adjusting ring (240) is clamped on the mandrel (100).
5. The anode rotating mechanism according to claim 2, wherein a first limiting hole (301) is formed in the bearing outer sleeve (300), and a second limiting hole or an annular limiting groove (223) matched with the first limiting hole (301) is formed in the middle bearing (220).
6. Anode rotating mechanism according to claim 1 or 5, characterized in that one end of the bearing outer sleeve (300) is provided with a positioning flange (302).
7. The anode rotation mechanism according to claim 1, wherein one end of the mandrel (100) is provided with a mounting flange (130).
8. An anode assembly, comprising:
a base (400) to which a bearing bracket (410) is attached;
the anode rotation mechanism according to any one of claims 1 to 7, wherein the mandrel (100) is connected to the bearing receptacle (410);
the outer rotor (500) is sleeved on the outer wall of the bearing outer sleeve (300);
a target disk (600) connected with the outer rotor (500).
9. An X-ray tube, comprising
A vacuum vessel;
an anode assembly according to claim 8 disposed within the vacuum vessel;
and a cathode head disposed in the vacuum vessel, located at one side of the anode assembly, and facing the target disk (600).
10. An X-ray device, comprising:
an imaging device;
the X-ray tube of claim 9, disposed on a side of the imaging device, for outputting X-rays to the imaging device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911367498.4A CN111146057A (en) | 2019-12-26 | 2019-12-26 | Anode rotating mechanism, anode assembly, X-ray tube and X-ray device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911367498.4A CN111146057A (en) | 2019-12-26 | 2019-12-26 | Anode rotating mechanism, anode assembly, X-ray tube and X-ray device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111146057A true CN111146057A (en) | 2020-05-12 |
Family
ID=70520680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911367498.4A Pending CN111146057A (en) | 2019-12-26 | 2019-12-26 | Anode rotating mechanism, anode assembly, X-ray tube and X-ray device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111146057A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113506718A (en) * | 2021-07-23 | 2021-10-15 | 昆山医源医疗技术有限公司 | X-ray tube assembly with noise reduction function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3245455A1 (en) * | 1981-12-09 | 1983-06-16 | Hitachi, Ltd., Tokyo | X-ray tube with rotating anode |
| US4962519A (en) * | 1989-03-31 | 1990-10-09 | General Electric Company | Lubricated bearing retainer for X-ray tube |
| JP2000120712A (en) * | 1998-10-16 | 2000-04-25 | Koyo Seiko Co Ltd | Bearing unit |
| US8523448B1 (en) * | 2012-08-22 | 2013-09-03 | The Timken Company | X-ray tube bearing |
-
2019
- 2019-12-26 CN CN201911367498.4A patent/CN111146057A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3245455A1 (en) * | 1981-12-09 | 1983-06-16 | Hitachi, Ltd., Tokyo | X-ray tube with rotating anode |
| US4962519A (en) * | 1989-03-31 | 1990-10-09 | General Electric Company | Lubricated bearing retainer for X-ray tube |
| JP2000120712A (en) * | 1998-10-16 | 2000-04-25 | Koyo Seiko Co Ltd | Bearing unit |
| US8523448B1 (en) * | 2012-08-22 | 2013-09-03 | The Timken Company | X-ray tube bearing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113506718A (en) * | 2021-07-23 | 2021-10-15 | 昆山医源医疗技术有限公司 | X-ray tube assembly with noise reduction function |
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Application publication date: 20200512 |