CN110368016B - Medical CT rotor inspection tool - Google Patents
Medical CT rotor inspection tool Download PDFInfo
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- CN110368016B CN110368016B CN201910721976.0A CN201910721976A CN110368016B CN 110368016 B CN110368016 B CN 110368016B CN 201910721976 A CN201910721976 A CN 201910721976A CN 110368016 B CN110368016 B CN 110368016B
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- 238000007689 inspection Methods 0.000 title claims abstract description 40
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 34
- 239000004677 Nylon Substances 0.000 claims description 18
- 229920001778 nylon Polymers 0.000 claims description 18
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000002591 computed tomography Methods 0.000 description 16
- 239000004411 aluminium Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/58—Testing, adjusting or calibrating thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Veterinary Medicine (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Mechanical Engineering (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention relates to a medical CT rotor inspection tool, which comprises an inspection platform; the support assembly is arranged on the inspection platform and comprises four support rods, the upper ends of the support rods are connected with the annular disc of the rotor, the lower ends of the support rods are connected with a steel ball, two support rods are a group of short columns, the other two support rods are a group of long columns, the length of the long columns is larger than that of the short columns, and the steel balls of the short columns are supported on the aluminum beams; an aluminum alloy fulcrum is arranged in the middle of the lower end face of the aluminum beam. The invention has the advantages that: the whole rotor is balanced in stress by supporting through the four supporting rods, and the deformation of the rotor is obviously reduced; the supporting rod is not supported on the supporting wall any more, so that the measurement is completed in one step, and the working efficiency is improved; by additionally arranging the steel balls at the bottom ends of the supporting rods, the surface-to-surface contact is changed into point-to-surface contact, so that the phenomenon of uneven height is avoided, and the problem of unstable placement of workpieces can be well solved.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a medical CT rotor inspection tool.
Background
CT (Computed Tomography), namely electronic computer tomography, which uses precisely collimated X-ray beams, gamma rays, ultrasonic waves and the like to scan a section around a certain part of a human body together with a detector with extremely high sensitivity, has the characteristics of quick scanning time, clear images and the like, and can be used for checking various diseases; the rays used can be classified differently according to the type: x-ray CT (X-CT), gamma-ray CT (gamma-CT), and the like.
A typical CT (computer tomography) apparatus comprises a gantry, a rotor mounted on the gantry, wherein the rotor is rotatable relative to the gantry about its own axis, an X-ray tube and an X-ray detector being mounted on the rotor in a position opposite to each other. The existing rotor comprises a rotating body and a balance weight, wherein the rotating body comprises an annular disc and a supporting wall, and the supporting wall is connected with the outer edge of the annular disc and provided with an inner cylindrical surface connected with the annular disc and coaxial with the annular disc. The balance weight is connected with the rotating body and used for maintaining the stability of the rotation of the rotor.
The rotor in CT has high machining size requirement, and comprises a rotating body and a balance block, wherein the rotating body comprises an annular disc and a supporting wall, the annular disc is provided with a plurality of threaded connection holes, the supporting wall is annular and is connected with the outer edge of the annular disc, the upper end face of the supporting wall is an A roller way face, the lower end face of the supporting wall is a B roller way face, the outer circumferential face of the supporting wall is a C roller way face, the balance block is connected with the rotating body, the flatness of the A roller way face and the B roller way face does not exceed 0.05mm, and the runout of the C roller way face does not exceed 0.08mm, so that the rotor needs to be detected after the rotor is machined. When detecting, firstly, the rotor is required to be supported on a tool, and then the flatness and roundness of each surface of the rotor are detected by using a measuring tool such as a roundness measuring instrument. The conventional tooling is shown in fig. 1, three cylinders are respectively supported in three areas of the surface of the rolling track B, so that the tooling is convenient to install and easy to operate, but has a plurality of problems: firstly, under the supporting of the workpiece in the mode, the stress is unbalanced, and irregular deformation of the A raceway surface, the B raceway surface and the C round raceway surface can be possibly caused by the influence of the gravity of the rotor; secondly, the supporting cylinder is arranged below the surface of the B raceway, interference can occur in the travelling process of the measuring needle of the measuring machine, the measuring needle cannot be in place in one step, and after the primary measurement is finished, the rotor needs to be rotated, so that the surface of the B raceway is exposed on the surface covered by the primary measurement, and secondary measurement is performed, so that the detection efficiency is reduced; finally, the workpiece is placed on the three cylinders and is contacted with the surface, gaps exist between the two parts, uneven height can be generated, the workpiece can be placed unstably during measurement, and the problems are solved, so that the detection is inaccurate, the detection needs to be carried out for a plurality of times, and the detection result is not ideal.
Disclosure of Invention
The invention aims to solve the technical problem of providing a medical CT rotor inspection tool which is balanced in stress and can be used for measuring in place at one time.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a medical treatment CT rotor inspection frock, medical treatment CT rotor is including changeing rotator and balancing piece, and the rotator includes annular disk and supporting wall, has a plurality of threaded connection holes on the annular disk, and the supporting wall is annular form to connect the outer fringe of annular disk, and the up end of supporting wall is the A raceway face, and the lower terminal surface is the B raceway face, and outer periphery is the C circle raceway face, and the balancing piece connects the rotator, and its innovation point lies in: comprising
An inspection platform;
The support assembly is arranged on the inspection platform and comprises four support rods, the upper ends of the support rods are connected with the annular disc of the rotor, the lower ends of the support rods are connected with a steel ball, two support rods are a group of short columns, the other two support rods are a group of long columns, the length of each long column is larger than that of each short column, the steel balls of the long columns are directly supported on the inspection platform, the steel balls of the short columns are supported on the aluminum beams, and after the short columns are supported on the aluminum beams, the overall heights of the aluminum beams and the short columns are consistent with the heights of the long columns;
an aluminum alloy supporting point is arranged in the middle of the lower end face of the aluminum beam and is supported on the inspection platform.
Further, the supporting rod comprises a cylindrical supporting rod main body, the center positions of the two sides of the supporting rod main body are respectively provided with an extension section which extends outwards, the extension sections are respectively provided with an external thread structure, one extension section is in threaded fit with a threaded connection hole on the rotor annular disc, the other extension section is in threaded connection with the steel ball, and meanwhile, the steel ball is provided with an internal thread blind hole which is embedded into the extension section and matched with the extension section.
Further, the aluminum alloy supporting point comprises an aluminum alloy supporting plate, the aluminum alloy supporting plate is fixed with the aluminum beam, an aluminum alloy supporting rod protruding outwards is arranged in the middle of the bottom end of the aluminum alloy supporting plate, and the section of the aluminum alloy supporting rod is semicircular.
Further, two sides of the upper end face of the aluminum beam are respectively provided with a nylon Long Dianban, the nylon backing plate is fixed with the aluminum beam, the upper end face of one nylon backing plate is provided with an oval groove matched with the steel balls, and the upper end face of the other nylon backing plate is provided with a round groove matched with the steel balls.
The invention has the advantages that: according to the inspection tool disclosed by the invention, the rotor is supported by the four support rods, so that the stress of the whole rotor is balanced, and the deformation of the rotor is obviously reduced; the four supporting rods are divided into two long columns and two short columns, wherein the two long columns are directly supported on the inspection platform, the two short columns are supported on the aluminum beam, the bottom end of the aluminum beam is supported on the inspection platform through an aluminum alloy supporting point, so that four points of the rotor are supported while the four points of the rotor are supported, namely, the rotor is still measured based on the three-point measuring principle, and the measuring accuracy is ensured.
For the supporting position between the supporting rod and the rotor, the top end of the supporting rod is in threaded fixation with the annular disc of the rotor, so that the supporting rod is not supported on the supporting wall any more, the interference of the supporting rod is avoided, the measurement is completed in one step, and the working efficiency is improved;
by additionally arranging the steel balls at the bottom ends of the supporting rods, the original surface-to-surface contact is changed into point-to-surface contact, the phenomenon of uneven height is avoided, and the problem of unstable placement of workpieces can be well solved.
For the design of aluminum alloy fulcrum, adopt the cooperation of aluminum alloy backup pad and aluminum alloy bracing piece, utilize semicircle form aluminum alloy bracing piece to realize that the aluminum beam supports on inspection platform, more make things convenient for aluminum beam left and right tilt wobbling's smooth.
The nylon backing plate is arranged on the aluminum beam, so that the steel balls are supported conveniently, one circular groove is utilized to position one steel ball, and the fine adjustment of the position of the other steel ball is facilitated through the design of the elliptical groove so as to match with the machining error.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic diagram of a conventional medical CT rotor inspection tool.
Fig. 2 is a schematic diagram of the medical CT rotor inspection tool of the present invention.
Fig. 3 is a schematic view of a support bar according to the present invention.
Fig. 4 is a schematic view of an aluminum beam in accordance with the present invention.
FIG. 5 is a schematic view of one of the nylon mats according to the present invention.
FIG. 6 is a schematic view of another nylon backing plate of the present invention.
Detailed Description
The following examples will provide those skilled in the art with a more complete understanding of the present invention and are not intended to limit the invention to the embodiments described.
The medical CT rotor comprises a rotary body and a balance block, wherein the rotary body comprises an annular disc 1 and a supporting wall 2, a plurality of threaded connection holes 3 are formed in the annular disc 1, the supporting wall 2 is annular and is connected with the outer edge of the annular disc 1, the upper end face of the supporting wall 2 is an A raceway face, the lower end face of the supporting wall 2 is a B raceway face, the outer circumferential face of the supporting wall 2 is a C round raceway face, and the balance block is connected with the rotary body.
The inspection tool comprises
An inspection platform 4, the inspection platform 4 is a flat plate structure.
The supporting component is arranged on the inspection platform 4 and comprises four supporting rods, the upper ends of the supporting rods are connected with the annular disc 1 of the rotor, the lower ends of the supporting rods are connected with steel balls 5, as shown in the schematic diagram of fig. 3, the supporting rods comprise a cylindrical supporting rod main body 6, the central positions of two sides of the supporting rod main body 6 are respectively provided with an extending section 7 which extends outwards, the extending sections 7 are respectively provided with an external thread structure, one extending section 7 is in threaded fit with a threaded connection hole 3 on the annular disc 1 of the rotor, the other extending section 7 is in threaded connection with the steel balls 5, and meanwhile, the steel balls 5 are provided with internal thread blind holes 8 which are embedded with the extending section 7 and are in threaded fit with the external thread structures of the extending sections 7.
For four bracing pieces, two of them are a set of, be short column 9, and two other bracing pieces are a set of, be long column 10, and long column 10's length is greater than short column 9's length, and long column 10's steel ball directly supports on inspection platform 4, and short column 9's steel ball supports on aluminium roof beam 11, and after short column 9 supports on aluminium roof beam 11, aluminium roof beam 11 and short column 9's overall height is unanimous with long column 10's height. Through add steel ball 5 in the bottom of bracing piece to cooperation bracing piece and annular disk 1's thread tightening, make from former face-to-face contact between annular disk 1, bracing piece and the inspection platform 4, become the point-to-face contact, just not have the uneven phenomenon of height yet, the unstable problem of solution work piece put that can be fine.
An aluminum alloy supporting point 15 is arranged in the middle of the lower end surface of the aluminum beam 11, and the aluminum alloy supporting point 15 is supported on the inspection platform 4. For the cooperation between aluminium roof beam 11 and the inspection platform 4, adopt the aluminium alloy fulcrum 15 at aluminium roof beam 11 middle part to make the middle part position of aluminium roof beam 11 support on the inspection platform, and the both sides position of aluminium roof beam 11 then suspend in the top of inspection platform 4, such design, when carrying out the rotor support, can cooperate the rotor through the slope about aluminium roof beam 11 according to the difference of each position weight of rotor, ensure the support of rotor.
By dividing the four support rods into two long columns 10 and two short columns 9, wherein the two long columns 10 are directly supported on the inspection platform 4, the two short columns 9 are supported on the aluminum beam 11, and the bottom end of the aluminum beam 11 is supported on the inspection platform 1 through an aluminum alloy supporting point 15, so that four-point support of the rotor is ensured, and meanwhile, the points supported on the inspection platform 4 are still three points, namely, the rotor is still measured based on the three-point measurement principle, and the measurement accuracy is ensured.
The aluminum alloy supporting point 15 comprises an aluminum alloy supporting plate 12, the aluminum alloy supporting plate 12 and the aluminum beam 11 are fixedly connected through bolts, an aluminum alloy supporting rod 13 protruding outwards is arranged in the middle of the bottom end of the aluminum alloy supporting plate 12, and the section of the aluminum alloy supporting rod 13 is semicircular. For the design of aluminum alloy fulcrum 15, adopt aluminum alloy backup pad 12 and the cooperation of aluminum alloy bracing piece 13, utilize semicircle form aluminum alloy bracing piece 12 to realize that aluminum beam 11 supports on inspection platform 4, more make things convenient for aluminum beam 11 left and right sides tilt wobbling's smooth, make things convenient for the inspection measurement of rotor different angles.
Two sides of the upper end face of the aluminum beam 11 are respectively provided with a nylon backing plate 14, the nylon backing plates 14 and the aluminum beam 11 are fixedly connected through bolts, the upper end face of one nylon backing plate 14 is provided with an oval groove 16 matched with the steel balls 5, and the upper end face of the other nylon backing plate 14 is provided with a round groove 17 matched with the steel balls 5. The nylon backing plate 14 is arranged on the aluminum beam 11, so that the steel balls 5 are supported conveniently, one circular groove 17 is utilized to position one steel ball 5, and the fine adjustment of the position of the other steel ball 5 is facilitated through the design of the elliptical groove 16 so as to match with the machining error.
Working principle: when the rotor is tested, firstly, the upper ends of the four support rods are respectively connected and fixed with the threaded connection holes 3 of the rotor in a threaded manner, the lower ends of the four support rods are connected with steel balls, then, the two long posts 10 are directly supported on the test platform 4, the short posts 9 are supported on the aluminum beam 11, the steel balls 5 of one of the short posts 9 are placed into the circular grooves 17 on the nylon backing plate 14, the positioning of the short posts 9 is realized, the steel balls of the other short post 9 are placed into the elliptical grooves 16 on the other nylon backing plate 14, the aluminum beam 11 is supported on the test platform 4, the support of the rotor is completed, and finally, the measuring tools such as a roundness measuring instrument are used for measuring the A rolling way surface, the B rolling way surface and the C rolling way surface of the rotor.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a medical treatment CT rotor inspection frock, medical treatment CT rotor is including changeing rotator and balancing piece, and the rotator includes annular disk and supporting wall, has a plurality of threaded connection holes on the annular disk, and the supporting wall is annular form to connect the outer fringe of annular disk, and the up end of supporting wall is the A raceway face, and the lower terminal surface is the B raceway face, and outer periphery is the C circle raceway face, and the rotator is connected to the balancing piece, its characterized in that: comprising
An inspection platform;
The support assembly is arranged on the inspection platform and comprises four support rods, the upper ends of the support rods are connected with the annular disc of the rotor, the lower ends of the support rods are connected with a steel ball, two support rods are a group of short columns, the other two support rods are a group of long columns, the length of each long column is larger than that of each short column, the steel balls of the long columns are directly supported on the inspection platform, the steel balls of the short columns are supported on the aluminum beams, and after the short columns are supported on the aluminum beams, the overall heights of the aluminum beams and the short columns are consistent with the heights of the long columns;
An aluminum alloy fulcrum is arranged in the middle of the lower end surface of the aluminum beam and is supported on the inspection platform;
The aluminum alloy supporting point comprises an aluminum alloy supporting plate, the aluminum alloy supporting plate is fixed with the aluminum beam, an aluminum alloy supporting rod protruding outwards is arranged in the middle of the bottom end of the aluminum alloy supporting plate, and the section of the aluminum alloy supporting rod is semicircular.
2. The medical CT rotor inspection tool of claim 1, wherein: the supporting rod comprises a cylindrical supporting rod main body, wherein the central positions of the two sides of the supporting rod main body are respectively provided with an extension section which extends outwards, the extension sections are respectively provided with an external thread structure, one extension section is in threaded fit with a threaded connection hole on the rotor annular disc, the other extension section is in threaded connection with a steel ball, and meanwhile, the steel ball is provided with an internal thread blind hole which is embedded with the extension section and matched with the extension section.
3. The medical CT rotor inspection tool of claim 1, wherein: the two sides of the upper end face of the aluminum beam are respectively provided with a nylon Long Dianban, the nylon backing plate is fixed with the aluminum beam, the upper end face of one nylon backing plate is provided with an oval groove matched with the steel balls, and the upper end face of the other nylon backing plate is provided with a round groove matched with the steel balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910721976.0A CN110368016B (en) | 2019-08-06 | 2019-08-06 | Medical CT rotor inspection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910721976.0A CN110368016B (en) | 2019-08-06 | 2019-08-06 | Medical CT rotor inspection tool |
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| Publication Number | Publication Date |
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| CN110368016A CN110368016A (en) | 2019-10-25 |
| CN110368016B true CN110368016B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910721976.0A Active CN110368016B (en) | 2019-08-06 | 2019-08-06 | Medical CT rotor inspection tool |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114719802A (en) * | 2022-04-29 | 2022-07-08 | 广东鸿图科技股份有限公司 | Method for detecting integrated large die-casting aluminum alloy structural part |
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| CN101109946A (en) * | 2007-07-06 | 2008-01-23 | 成都飞机工业（集团）有限责任公司 | Control method for normally riveted curved member |
| CN204255611U (en) * | 2014-11-20 | 2015-04-08 | 中国航空工业第六一八研究所 | A kind of prism detects frock |
| CN204312959U (en) * | 2014-12-02 | 2015-05-06 | 上海航天精密机械研究所 | Universal plane adjusting device |
| CN204431114U (en) * | 2015-02-04 | 2015-07-01 | 焱智精密机械（上海）有限公司 | For the fixture of thin plate processing |
| KR20150133967A (en) * | 2014-05-21 | 2015-12-01 | 주식회사 케이씨텍 | Rotation support for substrate spinning apparatus |
| CN106153254A (en) * | 2016-07-08 | 2016-11-23 | 哈尔滨工业大学 | A kind of quality center of mass measurement in a closed series car and measuring method |
| CN205950552U (en) * | 2016-05-10 | 2017-02-15 | 焦学进 | Optimize small -size precision measurement and use two -dimentional turning device |
| CN211962064U (en) * | 2019-08-06 | 2020-11-20 | 南通爱尔思轻合金精密成型有限公司 | Medical CT rotor inspection frock |
-
2019
- 2019-08-06 CN CN201910721976.0A patent/CN110368016B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6337894B1 (en) * | 2000-09-20 | 2002-01-08 | Analogic Corporation | Rotary bearing assembly for CT scanner gantry |
| CN101109946A (en) * | 2007-07-06 | 2008-01-23 | 成都飞机工业（集团）有限责任公司 | Control method for normally riveted curved member |
| KR20150133967A (en) * | 2014-05-21 | 2015-12-01 | 주식회사 케이씨텍 | Rotation support for substrate spinning apparatus |
| CN204255611U (en) * | 2014-11-20 | 2015-04-08 | 中国航空工业第六一八研究所 | A kind of prism detects frock |
| CN204312959U (en) * | 2014-12-02 | 2015-05-06 | 上海航天精密机械研究所 | Universal plane adjusting device |
| CN204431114U (en) * | 2015-02-04 | 2015-07-01 | 焱智精密机械（上海）有限公司 | For the fixture of thin plate processing |
| CN205950552U (en) * | 2016-05-10 | 2017-02-15 | 焦学进 | Optimize small -size precision measurement and use two -dimentional turning device |
| CN106153254A (en) * | 2016-07-08 | 2016-11-23 | 哈尔滨工业大学 | A kind of quality center of mass measurement in a closed series car and measuring method |
| CN211962064U (en) * | 2019-08-06 | 2020-11-20 | 南通爱尔思轻合金精密成型有限公司 | Medical CT rotor inspection frock |
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| CN110368016A (en) | 2019-10-25 |
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