CN111029232A - X-ray tube rotation mechanism, X-ray tube, and X-ray device - Google Patents
X-ray tube rotation mechanism, X-ray tube, and X-ray device Download PDFInfo
- Publication number
- CN111029232A CN111029232A CN201911367493.1A CN201911367493A CN111029232A CN 111029232 A CN111029232 A CN 111029232A CN 201911367493 A CN201911367493 A CN 201911367493A CN 111029232 A CN111029232 A CN 111029232A
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- China
- Prior art keywords
- ray tube
- mechanism body
- sleeve
- mechanism according
- mandrel
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- 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 X-ray tube rotating mechanism, an X-ray tube and an X-ray device, comprising a fixed sleeve; the mechanism body is sleeved in the fixed sleeve, at least one rail is arranged at the first end of the mechanism body, and at least two rails are arranged at the second end of the mechanism body. When using, the second end of mechanism body is close to the target dish, because the second end of mechanism body is provided with two at least tracks, can reduce the atress of installing the ball on every track with the power dispersion that mechanism body second end received to every track, reduces the wearing and tearing of ball, is favorable to improving the life of product.
Description
Technical Field
The invention relates to the technical field of X-ray tubes, in particular to an X-ray tube rotating mechanism, an X-ray tube and an X-ray device.
Background
In an X-ray tube, damage to the bearing balls causes the bearings to jam and fail to operate, which is one of the main causes of X-ray tube failure. The X-ray tube bearing typically has only front and rear rails, with the front rail being closer to the target disk than the rear rail, and the front rail being hotter than the rear rail during X-ray tube operation, and having a lower strength due to the higher temperature of the components. Thus, the damaged bearing balls tend to be balls on the front track.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the X-ray tube rotating mechanism which can reduce the stress of the ball at the end which is easy to damage and prolong the service life of a product.
The invention also provides an X-ray tube with the X-ray tube rotating mechanism.
The invention also provides an X-ray device with the X-ray tube.
An X-ray tube rotation mechanism according to an embodiment of a first aspect of the present invention includes a fixed sleeve; the mechanism body is sleeved in the fixed sleeve, at least one rail is arranged at the first end of the mechanism body, and at least two rails are arranged at the second end of the mechanism body.
The X-ray tube rotating mechanism provided by the embodiment of the invention has at least the following beneficial effects:
when using, the second end of mechanism body is close to the target dish, because the second end of mechanism body is provided with two at least tracks, can reduce the atress of installing the ball on every track with the power dispersion that mechanism body second end received to every track, reduces the wearing and tearing of ball, is favorable to improving the life of product.
According to some embodiments of the invention, the mechanism body comprises a mandrel, an adjusting ring, a sleeve and a plurality of sleeve rings matched with the rails, wherein the first end of the mandrel is provided with at least one rail groove, the second end of the mandrel is provided with at least two rail grooves, each rail groove is provided with a ball, the sleeve ring is sleeved on the outer side of the rail groove and used for fixing the balls, and the sleeve is sleeved between the first end and the second end of the mandrel and used for adjusting the assembling clearance.
According to some embodiments of the invention, the inner wall of the collar is provided with an annular recess adapted to receive the ball.
According to some embodiments of the invention, the sleeve is of unitary construction with one of the collars.
According to some embodiments of the invention, the adjustment ring is a circular ring with a cut-out.
According to some embodiments of the invention, the adjustment ring is provided with a chamfer at its cut-out.
According to some embodiments of the invention, the mandrel is provided with a flange at one end, the flange being provided with a threaded hole.
According to some embodiments of the invention, one end of the fixing sleeve is provided with a limiting groove for installing the limiting member.
An X-ray tube according to an embodiment of the second aspect of the present invention includes the X-ray tube rotating mechanism according to the embodiment of the first aspect of the present invention.
The X-ray tube provided by the embodiment of the invention has at least the following beneficial effects:
when using, the second end of mechanism body is close to the target dish, because the second end of mechanism body is provided with two at least tracks, can reduce the atress of installing the ball on every track with the power dispersion that mechanism body second end received to every track, reduces the wearing and tearing of ball, is favorable to improving the life of product.
An X-ray apparatus according to an embodiment of a third aspect of the present invention includes an imaging apparatus; the X-ray tube according to the embodiment of the second aspect of the present invention is provided on one side of the imaging device, and outputs X-rays to the imaging device.
The X-ray device provided by the embodiment of the invention has at least the following beneficial effects:
when using, the second end of mechanism body is close to the target dish, because the second end of mechanism body is provided with two at least tracks, can reduce the atress of installing the ball on every track with the power dispersion that mechanism body second end received to every track, reduces the wearing and tearing of ball, is favorable to improving the life of product.
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 one of the exploded views of the structure of the X-ray tube rotating mechanism according to the embodiment of the present invention;
FIG. 2 is one of the schematic cross-sectional views of an X-ray tube rotation mechanism according to an embodiment of the present invention;
FIG. 3 is one of the schematic cross-sectional views of an X-ray tube rotation mechanism according to an embodiment of the present invention;
FIG. 4a is a schematic diagram illustrating a force analysis of the rotational mechanism of the X-ray tube according to the embodiment of the present invention;
FIG. 4b is a schematic diagram illustrating a force analysis of the rotational mechanism of the X-ray tube according to the embodiment of the present invention;
fig. 5 is an exploded view of the X-ray tube rotation mechanism according to the embodiment of the present invention.
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, 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 X-ray tube rotating mechanism, which includes a fixing sleeve 100 and a mechanism body 200, wherein the mechanism body 200 is sleeved in the fixing sleeve 100, a first end of the mechanism body 200 is provided with at least one rail, and a second end of the mechanism body 200 is provided with at least two rails.
Referring to fig. 3 and 4, in use, the mechanism body 200 is connected to the target disc 400 through the connecting member 300, referring to fig. 4a, point d in fig. 4a is the centroid position of the assembled target disc 400, connecting member 300 and X-ray tube rotation mechanism, the acting force F at this point is equal to the gravity G, point a is the track position of the first end of the mechanism body 200, point b is the track position of the second end of the mechanism body 200, and for the case where there is only one track at point b, the length L is due to the fact that the length L is longab＝LbdAccording to the analysis of mechanics theory, the orbit stress F of the position of a pointaTrack stress F at G, b point position b2G. Referring to fig. 4b, in the embodiment of the present invention, two rails are disposed at the second end of the mechanism body 200, and the rail at the position of b point is stressed by a force FbThe force applied to the second end of the mechanism body 200 is dispersed to each track, so that the force applied to the balls 250 mounted on each track is reduced, the abrasion of the balls 250 is reduced, and the service life of the product is prolonged. It should be appreciated that the larger the number of tracks at the second end of the mechanism body 200, the smaller the force applied by the balls 250 on each track, and the number of tracks may be two, three or more, but for convenience of assembly and cost saving, the second end of the mechanism body 200 of the embodiment of the present invention is provided with two tracks.
Referring to fig. 2, the mechanism body 200 includes a mandrel 210, an adjusting ring 220, a sleeve 230, and a plurality of collar rings 240 adapted to the tracks, a first end of the mandrel 210 is provided with at least one track groove 211, a second end of the mandrel 210 is provided with at least two track grooves 211, each track groove 211 is provided with a ball 250, the collar 240 is sleeved outside the track groove 211 and used for fixing the ball 250, and the sleeve 230 is sleeved between the first end and the second end of the mandrel 210 and used for adjusting the assembling gap. In order to facilitate processing, the lantern ring 240 corresponding to each track groove 211 adopts the same structure, and the sleeve 230 is used for filling an assembly gap between the tracks at the two ends of the mechanism body 200, so that the lantern ring 240 is tightly contacted with the balls 250, and the play is avoided in the using process.
Referring to fig. 2 and 5, in order to facilitate installation, the inner wall of the collar 240 is provided with an annular recess 241 adapted to install the ball 250, when assembling, the collar 240 is sleeved on the mandrel 210 and located at one side of the corresponding track groove 211, then the ball 250 is assembled on the track groove 211, and then the collar 240 is pushed to the position of the track groove 211, so that the collar 240 and the ball 250 are in close contact, and the assembly structure is simple, and is convenient to install and disassemble.
To reduce the number of parts, the sleeve 230 is integral with one of the collars 240, and in particular, the sleeve 230 is integral with an adjacent one of the collars 240.
Referring to fig. 5, the adjusting ring 220 is a circular ring with a cut, and for assembly, a certain assembly gap is reserved between two ends of the mandrel 210, and after the sleeve 230 and the collar 240 are assembled, the adjusting ring 220 is fastened on the mandrel 210 to fill the assembly gap on the mandrel 210, so that the collar 240 and the balls 250 are tightly attached.
Referring to fig. 5, in order to facilitate the assembly of the adjusting ring 220 and the mandrel 210, an inclined surface 221 is disposed at a notch of the adjusting ring 220, an angle of the inclined surface 221 is adapted to a peripheral wall of the mandrel 210, and further, the inclined surface 221 is polished to make the inclined surface 221 smoother, so as to reduce a frictional force when the adjusting ring 220 is fastened to the mandrel 210, thereby facilitating and improving the assembly.
Referring to fig. 5, in use, the X-ray tube rotating mechanism needs to be connected with the target disk curtain through a connecting member, and for convenience of installation and disassembly, a flange 212 is disposed at one end of the spindle 210, and a threaded hole is disposed on the flange 212.
Referring to fig. 5, during assembly, since the mechanism body 200 is sleeved in the fixing sleeve 100, in order to avoid the mechanism body 200 from being separated from the fixing sleeve 100 when in use, one end of the fixing sleeve 100 is provided with a limiting groove 101 for installing the limiting member 110, and specifically, the limiting member 110 is a snap spring.
In a second aspect, the invention discloses an X-ray tube comprising the X-ray tube rotating mechanism according to the first aspect of the invention. When using, the second end of mechanism body 200 is close to target disc 400, because the second end of mechanism body 200 is provided with two at least tracks, can disperse the power that receives mechanism body 200 second end to every track, reduces the atress of installing ball 250 on every track, reduces the wearing and tearing of ball 250, is favorable to improving the life of product.
An X-ray device disclosed in an embodiment of a third 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. When the mechanism is used, the second end of the mechanism body 200 is close to the target 400 disc, and because the second end of the mechanism body 200 is provided with at least two tracks, the force applied to the second end of the mechanism body 200 can be dispersed to each track, so that the stress of the balls 250 arranged on each track is reduced, the abrasion of the balls 250 is reduced, and the service life of a product is 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 X-ray tube rotation mechanism characterized by comprising:
a fixed sleeve (100);
the mechanism comprises a mechanism body (200) sleeved in the fixed sleeve (100), wherein at least one rail is arranged at the first end of the mechanism body (200), and at least two rails are arranged at the second end of the mechanism body (200).
2. The X-ray tube rotating mechanism according to claim 1, wherein the mechanism body (200) comprises a mandrel (210), an adjusting ring (220), a sleeve (230) and a plurality of sleeve rings (240) matched with the rails, a first end of the mandrel (210) is provided with at least one rail groove (211), a second end of the mandrel (210) is provided with at least two rail grooves (211), each rail groove (211) is provided with a ball (250), the sleeve ring (240) is sleeved on the outer side of the rail groove (211) and used for fixing the ball (250), and the sleeve (230) is sleeved between the first end and the second end of the mandrel (210) and used for adjusting the assembly gap.
3. X-ray tube turning mechanism according to claim 2, wherein the inner wall of the collar (240) is provided with an annular recess (241) adapted to fit the balls (250).
4. The X-ray tube rotation mechanism according to claim 2, wherein the sleeve (230) is of unitary construction with one of the collars (240).
5. The X-ray tube rotation mechanism according to claim 2, wherein the adjustment ring (220) is a notched ring.
6. The X-ray tube rotation mechanism according to claim 5, wherein a chamfer (221) is provided at the notch of the adjustment ring (220).
7. The X-ray tube rotation mechanism according to claim 2, wherein the spindle (210) is provided with a flange (212) at one end, and the flange (212) is provided with a threaded hole.
8. The X-ray tube rotating mechanism according to claim 1, wherein one end of the fixed sleeve (100) is provided with a limit recess (101) for mounting a limit piece (110).
9. An X-ray tube characterized by comprising the X-ray tube rotating mechanism according to any one of claims 1 to 8.
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 |
|---|---|---|---|
| CN201911367493.1A CN111029232A (en) | 2019-12-26 | 2019-12-26 | X-ray tube rotation mechanism, X-ray tube, and X-ray device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911367493.1A CN111029232A (en) | 2019-12-26 | 2019-12-26 | X-ray tube rotation mechanism, X-ray tube, and X-ray device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111029232A true CN111029232A (en) | 2020-04-17 |
Family
ID=70213816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911367493.1A Pending CN111029232A (en) | 2019-12-26 | 2019-12-26 | X-ray tube rotation mechanism, X-ray tube, and X-ray device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111029232A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB703600A (en) * | 1951-07-25 | 1954-02-03 | Machlett Lab Inc | Improvements in electron tubes |
| GB781353A (en) * | 1954-09-13 | 1957-08-21 | Gen Electric | Improvements in bearing structures particularly for x-ray tubes |
| US4625324A (en) * | 1983-09-19 | 1986-11-25 | Technicare Corporation | High vacuum rotating anode x-ray tube |
| US20110038459A1 (en) * | 2009-08-14 | 2011-02-17 | Varian Medical Systems, Inc. | X-ray tube bearing shaft and hub |
| US8523448B1 (en) * | 2012-08-22 | 2013-09-03 | The Timken Company | X-ray tube bearing |
| DE102015220101A1 (en) * | 2015-10-15 | 2017-04-20 | Minebea Co., Ltd. | Rotary anode bearing assembly and rotary anode for an X-ray tube |
-
2019
- 2019-12-26 CN CN201911367493.1A patent/CN111029232A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB703600A (en) * | 1951-07-25 | 1954-02-03 | Machlett Lab Inc | Improvements in electron tubes |
| GB781353A (en) * | 1954-09-13 | 1957-08-21 | Gen Electric | Improvements in bearing structures particularly for x-ray tubes |
| US4625324A (en) * | 1983-09-19 | 1986-11-25 | Technicare Corporation | High vacuum rotating anode x-ray tube |
| US20110038459A1 (en) * | 2009-08-14 | 2011-02-17 | Varian Medical Systems, Inc. | X-ray tube bearing shaft and hub |
| US8523448B1 (en) * | 2012-08-22 | 2013-09-03 | The Timken Company | X-ray tube bearing |
| DE102015220101A1 (en) * | 2015-10-15 | 2017-04-20 | Minebea Co., Ltd. | Rotary anode bearing assembly and rotary anode for an X-ray tube |
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| PB01 | Publication | ||
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Application publication date: 20200417 |