CN107658041B - Rotating structure for multiple collimators of wavelength dispersion X-ray fluorescence spectrometer - Google Patents
Rotating structure for multiple collimators of wavelength dispersion X-ray fluorescence spectrometer Download PDFInfo
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- CN107658041B CN107658041B CN201710812482.4A CN201710812482A CN107658041B CN 107658041 B CN107658041 B CN 107658041B CN 201710812482 A CN201710812482 A CN 201710812482A CN 107658041 B CN107658041 B CN 107658041B
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- ball roller
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- wavelength dispersion
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
- G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
- G01N2223/316—Accessories, mechanical or electrical features collimators
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Abstract
The invention discloses a rotating structure of a multi-collimator for a wavelength dispersion X-ray fluorescence spectrometer, which comprises: the bearing can replace the defects of the original bearing, can increase the volume of the rolling part, improve the integral mechanical performance and prolong the service life, is simpler in design, can miniaturize the integral structure more on the basis of the same mechanical performance, and adopts a spherical roller structure, so that the integral structure can be simpler in design compared with a cylindrical structure.
Description
Technical Field
The invention belongs to the field of wavelength dispersion X-ray fluorescence spectrometers, and particularly relates to a rotating structure of a multi-collimator.
Background
An X-ray or other photon source excites atoms in the substance to be measured, causing it to fluoresce (secondary X-rays). Thereby performing an analysis of the composition of matter. X-ray fluorescence spectrometers, also known as XRF spectrometers, are both dispersive and non-dispersive. The dispersion type is classified into a wavelength dispersion type and an energy dispersion type. The wavelength dispersion type XRF spectrometer comprises an X-ray tube excitation source, a light splitting system, a detector system, a vacuum system, an airflow system and the like. According to different focusing geometrical conditions of the analysis crystal, the analysis crystal is divided into a non-focusing reflection flat crystal type, a semi-focusing reflection curved crystal type, a full-focusing reflection curved crystal type, a semi-focusing transmission curved crystal type and the like. The principle is that after a sample is irradiated by X-rays, the electrons of the atomic inner shell layer of the element are excited, shell layer electrons jump and emit characteristic X-rays of the element, and the proportional relation between the intensity and the concentration of the wavelength (energy) of the characteristic X-rays of the element is measured by a detector, so that quantitative analysis can be performed, the quantitative analysis method has the advantages of no damage to the sample, high analysis speed, suitability for measuring all chemical elements with the atomic number of more than 4, high analysis precision and simple sample preparation; and at present, no commercial sequential wavelength dispersion X-ray fluorescence spectrometer appears yet in China, so corresponding equipment is still in a blank stage, further research and development need to be carried out on the equipment, and in order to be capable of more effectively measuring various substance components, a plurality of collimators need to be used, the current technology does not have a plurality of available collimator convenient structures, and simultaneously, a plurality of collimators are fused together and still need to be operated conveniently, the structure is moderate so as to be suitable for corresponding equipment, so that the prior art structure is not easy to adopt, and a new structure needs to be searched.
Disclosure of Invention
In view of the above, there is a need to overcome at least one of the above-mentioned deficiencies in the prior art. The invention provides a rotating structure for a multi-collimator of a wavelength dispersion X-ray fluorescence spectrometer, which comprises a plurality of metal circular structural components which are combined into concentric circles and have circular cross sections, and a plurality of round ball rollers which are arranged in a supporting space formed by the circular structural components, wherein the round structural components are tightly contacted with the outer surfaces of the round ball rollers, and gaps formed by the contact of the round ball rollers and the circular structural components are smaller than the diameters of the round ball rollers.
According to the prior art in the patent background, no commercial sequential wavelength dispersion X-ray fluorescence spectrometer is available in China, so that the corresponding equipment is still in a blank stage, further research and development of the equipment are needed, and a plurality of collimators are needed for more effectively measuring various substance components, the conventional technology has no available convenient structure of a plurality of collimators, and meanwhile, the operation is convenient and fast when the plurality of collimators are fused together, and the structure is moderate so as to be suitable for the corresponding equipment; the invention discloses a rotary structure of a multi-collimator for a wavelength dispersion X-ray fluorescence spectrometer, which adopts a plurality of round structural components as supporting components, a plurality of spherical rollers are arranged in the middle and corresponding inner and outer side structures forming rotation are used as further support, on one hand, the defects of the original bearing can be replaced, such as avoiding the problems of complex structural design or increased volume design and subsequent installation and maintenance caused by the use of bearings, meanwhile, the volume of the rolling part can be increased, the integral mechanical property is improved, the service life is prolonged, the design is simpler, and the whole structure is more miniaturized on the same mechanical property requirement, besides the advantages, the spherical roller structure is adopted, the whole structure design is simpler than the column structure, but the installation has certain disadvantages.
In addition, the rotating structure for the multi-collimator disclosed by the invention also has the following additional technical characteristics:
furthermore, the number of the circular structural components is more than or equal to 2, and the number of the circular structural components arranged on the inner side and the outer side of the round ball roller is more than or equal to one.
Further, when there are two circular structural members, one circular structural member is disposed at each of the inner and outer sides of the spherical ball roller, and is located at the highest point of the inner and outer sides of the spherical ball roller.
Furthermore, the number of the circular structural components is more than or equal to 4, and the number of the circular structural components arranged on the inner side and the outer side of the round ball roller is more than or equal to two.
Furthermore, the rotating structure further comprises a cylinder body which is arranged at the inner side of the round ball roller and is in contact with the inner side of the round ball roller and used for installing a plurality of collimators, and a fixing part fixedly arranged with the outside.
Furthermore, a groove is formed in the inner side of the fixing part, the rotating structure is installed in the groove, and the inner side height of the round ball roller in the rotating structure is higher than the opening of the groove and is in contact with the barrel.
Furthermore, the number of the grooves on the inner side of the fixing part is N, the number of the rotating structures is N, and the N grooves and the rotating structures are assembled in a one-to-one correspondence mode.
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 top view of an embodiment according to the present invention;
FIG. 2 is a cross-sectional view of a front view according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a cartridge with a retaining member according to an embodiment of the invention;
in fig. 1, 1 is a circular structural component, 11 is an inner circular structural component, 12 is an outer circular structural component, 2 is a spherical roller, 3 is a cylinder body, and 4 is a fixing component.
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 drawings are illustrative only and should not be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "lateral", "vertical", "inner", "outer", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "coupled," "communicating," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly connected, integrally connected, or detachably connected; may be communication within two elements; can be directly connected or indirectly connected through an intermediate medium; "mating" may be a surface-to-surface mating, a point-to-surface or line-to-surface mating, and also includes a hole axis mating, and it is obvious to those skilled in the art that the above terms have specific meanings in the present invention.
The invention has the following conception that a plurality of round structural components are adopted as supporting components, a plurality of spherical rollers are arranged in the middle, and corresponding inner and outer side structures forming rotation are utilized for further supporting, so that the defects of the original bearing can be replaced, the problems of complex structural design or volume design increase, subsequent installation and maintenance and the like caused by the use of the bearing are solved, the volume of the rolling component can be increased, the integral mechanical performance and the service life are improved, the design is simpler, and the integral structure can be miniaturized on the premise of requiring the same mechanical performance.
The aligning apparatus of the present invention will be described with reference to the accompanying drawings, in which fig. 1 is a plan view of an embodiment according to the present invention; FIG. 2 is a cross-sectional view of a front view according to an embodiment of the present invention; FIG. 3 is a cross-sectional view of a cartridge with a retaining member according to an embodiment of the invention.
According to the embodiment of the invention, as shown in fig. 1 and 2, the rotating structure for multiple collimators disclosed by the invention comprises a plurality of metal circular structural components 1 (including an inner circular structural component 11 and an outer circular structural component 12) which are combined into concentric circles and have circular cross sections, and a plurality of round ball rollers 2 arranged in supporting spaces formed by the circular structural components 1, wherein the circular structural components 1 are in close contact with the outer surfaces of the round ball rollers 2, and gaps formed by the contact of the round ball rollers 2 and the circular structural components 1 are smaller than the diameters of the round ball rollers 2.
In addition, the rotating structure for the multi-collimator disclosed by the invention also has the following additional technical characteristics:
according to some embodiments of the present invention, the number of the circular structural members 1 is 2 or more, and the number of the circular structural members disposed at both the inner and outer sides of the spherical ball roller 2 is one or more.
Further, when there are two circular structural members 1, one circular structural member 1 is disposed on each of the inner and outer sides of the spherical ball roller 2, and is located at the highest point of the inner and outer sides of the spherical ball roller 2.
According to some embodiments of the present invention, the number of the circular structural members 1 is 4 or more, and the number of the circular structural members 1 disposed at both the inner and outer sides of the spherical ball roller 2 is two or more.
According to some embodiments of the present invention, the rotating structure further includes a cylinder 3 installed inside the spherical ball roller 2 and contacting the inside of the spherical ball roller 2 for installing a plurality of collimators, and a fixing member 4 fixedly installed with the outside.
Further, a groove is formed in the inner side of the fixing part 4, the rotating structure is installed in the groove, and the inner side height of the round ball roller 2 in the rotating structure is higher than the opening of the groove and is in contact with the cylinder 3.
Furthermore, the number of the grooves on the inner side of the fixing part 4 is N, and the number of the rotating structures is N, and the rotating structures are assembled in a one-to-one correspondence manner.
Any reference to "one embodiment," "an embodiment," "example embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. This schematic representation in various places throughout this specification does not necessarily refer to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature, structure, or characteristic in connection with other ones of the embodiments.
While specific embodiments of the invention have been described in detail with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. In particular, reasonable variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the foregoing disclosure, the drawings and the appended claims without departing from the spirit of the invention. Except variations and modifications in the component parts and/or arrangements, the scope of which is defined by the appended claims and equivalents thereof.
Claims (2)
1. A rotating structure for a multi-collimator of a wavelength dispersion X-ray fluorescence spectrometer is characterized by comprising: the round structure part is tightly contacted with the outer surface of the round ball roller, and a gap formed by the contact of the round ball roller and the round structure part is smaller than the diameter of the round ball roller, wherein the number of the round structure parts is more than or equal to 4, and the number of the round structure parts arranged on the inner side and the outer side of the round ball roller is more than or equal to 2; the rotating structure also comprises a cylinder body which is arranged at the inner side of the round ball roller and is contacted with the inner side of the round ball roller and used for installing a plurality of collimators, and a fixing part fixedly arranged with the outside; the inner side of the fixed part is provided with a groove, the rotating structure is arranged in the groove, and the inner side height of the round ball roller in the rotating structure is higher than the opening of the groove and is in contact with the barrel.
2. The rotary structure for the multiple collimators of the wavelength dispersion X-ray fluorescence spectrometer according to claim 1, wherein the number of the grooves on the inner side of the fixing member is N, and the number of the rotary structures is N, and the rotary structures are assembled in a one-to-one correspondence manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710812482.4A CN107658041B (en) | 2017-09-11 | 2017-09-11 | Rotating structure for multiple collimators of wavelength dispersion X-ray fluorescence spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710812482.4A CN107658041B (en) | 2017-09-11 | 2017-09-11 | Rotating structure for multiple collimators of wavelength dispersion X-ray fluorescence spectrometer |
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| Publication Number | Publication Date |
|---|---|
| CN107658041A CN107658041A (en) | 2018-02-02 |
| CN107658041B true CN107658041B (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710812482.4A Active CN107658041B (en) | 2017-09-11 | 2017-09-11 | Rotating structure for multiple collimators of wavelength dispersion X-ray fluorescence spectrometer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102022105838B3 (en) * | 2022-03-14 | 2023-08-17 | Helmut Fischer GmbH Institut für Elektronik und Messtechnik | Adjusting unit for X-ray optics in an X-ray fluorescence device and X-ray fluorescence device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914258Y (en) * | 2006-02-28 | 2007-06-20 | 史荣 | Medical rotating collimator |
| CN201339878Y (en) * | 2009-01-20 | 2009-11-04 | 江苏天瑞仪器股份有限公司 | Light filter and collimator combined switching unit |
| CN201387732Y (en) * | 2009-04-02 | 2010-01-20 | 深圳市华唯计量技术开发有限公司 | Collimator |
| CN203408368U (en) * | 2013-07-24 | 2014-01-29 | 深圳市奥沃医学新技术发展有限公司 | Integrated stereotactic multi-source focusing treatment and intensity modulated treatment radiotherapy equipment |
| CN103873014A (en) * | 2014-03-13 | 2014-06-18 | 青岛市光电工程技术研究院 | Ultra-narrow band filtering device |
| GB2511555A (en) * | 2013-03-07 | 2014-09-10 | Elekta Ab | Improvements in or relating to multi-leaf collimators |
| CN105068362A (en) * | 2015-08-18 | 2015-11-18 | 北京空间机电研究所 | High-precision high-rigidity space camera filter switching mechanism |
| CN206096572U (en) * | 2016-08-31 | 2017-04-12 | 上海芬创信息科技有限公司 | Convenient type high accuracy light filter tight pulley |
-
2017
- 2017-09-11 CN CN201710812482.4A patent/CN107658041B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914258Y (en) * | 2006-02-28 | 2007-06-20 | 史荣 | Medical rotating collimator |
| CN201339878Y (en) * | 2009-01-20 | 2009-11-04 | 江苏天瑞仪器股份有限公司 | Light filter and collimator combined switching unit |
| CN201387732Y (en) * | 2009-04-02 | 2010-01-20 | 深圳市华唯计量技术开发有限公司 | Collimator |
| GB2511555A (en) * | 2013-03-07 | 2014-09-10 | Elekta Ab | Improvements in or relating to multi-leaf collimators |
| CN203408368U (en) * | 2013-07-24 | 2014-01-29 | 深圳市奥沃医学新技术发展有限公司 | Integrated stereotactic multi-source focusing treatment and intensity modulated treatment radiotherapy equipment |
| CN103873014A (en) * | 2014-03-13 | 2014-06-18 | 青岛市光电工程技术研究院 | Ultra-narrow band filtering device |
| CN105068362A (en) * | 2015-08-18 | 2015-11-18 | 北京空间机电研究所 | High-precision high-rigidity space camera filter switching mechanism |
| CN206096572U (en) * | 2016-08-31 | 2017-04-12 | 上海芬创信息科技有限公司 | Convenient type high accuracy light filter tight pulley |
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| CN107658041A (en) | 2018-02-02 |
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