CN105031831A - Medical proton instrument therapy cabin rotating ring - Google Patents
Medical proton instrument therapy cabin rotating ring Download PDFInfo
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- CN105031831A CN105031831A CN201510412501.5A CN201510412501A CN105031831A CN 105031831 A CN105031831 A CN 105031831A CN 201510412501 A CN201510412501 A CN 201510412501A CN 105031831 A CN105031831 A CN 105031831A
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Abstract
The invention discloses a medical proton instrument therapy cabin rotating ring. The rotating ring comprises an inner ring, an outer ring and two ring-shaped flange cover plates. The flange cover plates are located between the inner ring and the outer ring. The inner circumferential surface and the outer circumferential surface of each flange cover plate are slopes. The groove between the slope of each outer circumferential surface and the outer ring and the gap between the root blunt edge of each outer circumferential surface and the outer ring are filled through one side welding. The outer circumferential surface of each flange cover plate and the outer ring are integrally fastened. The groove between the slope of each inner circumferential surface and the inner ring and the gap between the root blunt edge of each inner circumferential surface and the inner ring are filled through one side welding. The inner circumferential surface of each flange cover plate and the inner ring are integrally fastened. After welding, a closed chamber is surrounded by the outer ring, the inner ring and two cover plates. The medical proton instrument therapy cabin rotating ring provided by the invention has the advantages of convenient production and good reliability.
Description
Technical field
The present invention relates to tumor or treatment of cancer apparatus field, be specifically related to a kind of large-scale rotating ring of medical proton instrument treatment cabin.
Background technology
Current oncotherapy has the Therapeutic Method such as operative treatment, Drug therapy, photon therapy, proton therapeutic, heavy particle therapy, thermal therapeutical substantially.Early-stage cancer treatment is based on operative treatment, and Terminal cancer is based on Drug therapy.The x-ray that traditional radiation therapy technology uses or r ray are that its range is uncontrollable with exponential form decay, so the damage of normal tissue is comparatively large, which limits the therapeutic dose of tumor, make tumor obtain radical treatment.Meanwhile, the progress of current tumor pharmacother is also little.
Find after deliberation, proton radiation there will be Bo Lage peak in energy release process, can manual control its exergonic direction and position by automatic technology, this " fixed point explosion " technology, the therapeutic dose of tumor can be significantly improved, and minimum to the normal structure infringement beyond tumor tissues.In addition, the proton good characteristic such as also have little, the other scattering of penumbra few, thus improve the degree of accuracy of oncotherapy.Compared with conventional radiation therapy, proton therapeutic can make the therapeutic dose of tumor improve 20%-30%, substantially increases Partial controll rate and the cure rate of tumor, reduces the generation of complication.To this, the scientific research personnel of current developed country is is researching and developing a kind of equipment of the medical proton instrument for tumor and cancer, and this kind of medical proton instrument is roughly made up of proton precessional magnetometer, energy selection system, line transportation system, rotation therapy cabin, treatment head, dosage verifying system, treatment planning systems, location colimated light system, treatment control system and treatment security system.Adopt cyclotron to produce high energy proton beam, proton beam is incorporated into special for treating room through a series of device, enters rotation therapy cabin, coordinates to implement clock like precision to patient and locate, precisely treat with location bed.
For above-mentioned medical proton instrument, because patient is positioned at rotation therapy cabin when treating, therefore the safety and reliability in rotation therapy cabin is concerning extremely important patient.Rotation therapy cabin at least comprises treatment cabin body and two rotating rings, and the two ends for the treatment of cabin body are supported on rotating ring respectively, and You Nei cabin, rotation therapy cabin and outer cabin are formed, and during work, outer cabin is rotated, and interior cabin is motionless, and patient is positioned at cabin.Rotating ring assume responsibility for the Core Features such as the power transmission for the treatment of cabin body, weight bearing and rotation location, and therefore the success of rotating ring creates the key that rotation therapy cabin manufactures, because rotating ring is one, rotation therapy cabin core component.
Because the volume of rotating ring is very huge, weld seam is very long, and for the purpose of safety, not only require that the axiality of two rotating rings is not more than 0.1mm, and be ISO5817-B (this weld seam calling hierarchy is International Welding standard highest level) to the weld seam grade of rotating ring self, therefore very high difficulty is all existed for Design and manufacture rotating ring.International top proton instrument R & D Enterprises once entrusted large enterprise of China to produce proton instrument rotation therapy cabin, because the welding quality of two rotating rings does not reach requirement all the time, did not all succeed so last more than 2 years.
Summary of the invention
For the defect existed in prior art, the object of the present invention is to provide a kind of rotating ring of medical proton instrument treatment cabin of good reliability.
The technical scheme solved the problems of the technologies described above is as follows:
The rotating ring in medical treatment proton instrument treatment cabin, comprise internal ring, outer shroud and two flange plates in the form of a ring, flange plate lays respectively between internal ring and outer shroud, and the inner peripheral surface of flange plate and outer circumference surface are all arranged to domatic;
Described domatic first domatic, the First Transition face, second domatic of comprising, First Transition face is arc or trapezoidal transition face, first domatic one end intersects at the first axial end of flange plate, first is domaticly connected with second domatic one end by First Transition face, and the part between the second domatic other end and the second axial end of flange plate forms root root face; Form groove between domatic and outer shroud on described outer circumference surface, between the root root face on excircle and outer shroud, leave gap, between the domatic and internal ring on described inner peripheral surface, form groove, between the root root face on inner periphery and internal ring, leave gap;
Groove between domatic and outer shroud on described outer circumference surface, and root root face on outer circumference surface and the gap between outer shroud, filled by the form of single welding, the outer circumference surface of flange plate and outer shroud fused and is integrated; Groove between domatic and internal ring on inner peripheral surface, and root root face on inner peripheral surface and the gap between internal ring, filled by the mode of single welding, the inner peripheral surface of flange plate and internal ring fused and is integrated; After welding, outer shroud, internal ring and two cover plates surround a closed cavity.
Preferably, the second domatic and flange plate axially between angle be 50-55 to spend.
Preferably, described second domatic and flange plate axially between angle, be greater than the first domatic and flange plate axially between angle.
Preferably, the root root face on described excircle and the gap between outer shroud are 3-5mm, and the root root face on inner periphery and the gap between internal ring are 3-5mm.
Preferably, the height of described root root face is 2-3mm.
Preferably, second is domaticly made up of domatic body and the second transition face of being connected with this domatic body, and described root root face formed by the part between the second transition face and the second axial end of flange plate.
Preferably, the radius corresponding to First Transition face is greater than the radius corresponding to the second transition face.
Preferably, the radius corresponding to First Transition face is R1 is 10-20mm, and the radius corresponding to the second transition face is R2 is 2-4mm.
Preferably, the porch width of described groove is L1 is 32-50mm.
Preferably, the external diameter of described outer shroud is 5283mm, and the external diameter of internal ring is 4347mm, and the thickness of flange plate is 60mm.
Have employed such scheme, the groove between the domatic and outer shroud on described outer circumference surface, and root root face on excircle and the gap between outer shroud, filled by the form of single welding, the outer circumference surface of flange plate and outer shroud are fused and is integrated; Groove between domatic and internal ring on inner peripheral surface, and root root face on inner peripheral surface and the gap between internal ring, filled by the mode of single welding, the inner peripheral surface of flange plate and internal ring fused and is integrated; After welding, outer shroud, internal ring and two cover plates surround a closed cavity.Structure according to rotating ring of the present invention can be known with the welding process being attached to reality, and rotating ring of the present invention has following difficult point:
First, the structure of rotating ring is enclosed cavity shape, operator cannot enter into enclosed cavity inside and weld, and, weld seam all adopts full penetration weld, does not allow to add backing plate welding, therefore, can only adopt single-sided welding in outside when welding and reach the mode of double-faced forming, this causes reaching Weld quality level is that the superlative degree of the international standard of ISO5817-B adds difficulty.
The second, according to the requirement of ISO5817-B level, during single face welding and double face shaping, calculate according to this rotating ring actual size, the maximum 3mm of root reinforcement of this rotating ring, root bounces back maximum 0.5mm.This for thickness of slab reach 60mm, weld seam overall length 60.5 meters T connector manual welding not second to embroidering on needle point.
Can find out according to above difficult point, how to design on flange plate one rational domatic, it is the deciding factor determining to reach the international standard of ISO5817-B, the applicant is domatic by flange plate domatic being divided into first, First Transition face, second is domatic, and around the structure of rotating ring, lot of experiments has been carried out to each domatic parameter, finally obtaining comparatively reasonably welding point also welds successfully at one stroke, and after having welded, third party inspection mechanism is engaged to carry out 100%UT flaw detection to all weld seams by IBA company, ensure that product absolutely meets technical requirement.
Although exteriorly, rings configuration of the present invention is fairly simple, but due to can only single-sided welding be adopted and double-faced forming, and the requirement of ISO5817-B level will be reached, therefore the design of flange plate and internal ring and outer shroud weld is the key that rotating ring successfully manufactures, and is also the critical component manufacturing whole treatment cabin.Current the applicant develops the manufacturing contract (price in each treatment cabin is more than 5,000,000 yuan) in Yi Huo IBA company 13 cover treatment cabin, have also obtained the order of HIT and Mitsubishi simultaneously, therefore, income is very significantly obtained economically.
Accompanying drawing explanation
Fig. 1 is the sectional structure chart of the rotating ring in medical proton instrument treatment cabin of the present invention;
Fig. 2 is the partial schematic diagram of flange plate;
Fig. 3 be in Fig. 1 flange plate weld with outer shroud before schematic diagram;
Fig. 4 be in Fig. 1 flange plate weld with outer shroud after schematic diagram;
Fig. 5 is the schematic diagram of the another kind of groove in experimentation;
The rotating ring that Fig. 6 makes for adopting the groove shown in Fig. 5;
1 is internal ring, and 2 is outer shroud, and 3 is flange plate, and 3a is the first axial end, and 3b is the second axial end, and 4 is first domatic, and 5 is First Transition face, and 6 is domatic body, and 7 is the second transition face, and 8 is root root face, and 9 is groove, and 10 is cavity.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail:
As shown in Figures 1 to 4, the rotating ring in medical proton instrument treatment cabin of the present invention, comprise internal ring 1, outer shroud 2 and two flange plates 3 in the form of a ring, flange plate 3 lays respectively between internal ring 1 and outer shroud 2, inner peripheral surface and the internal ring 1 of flange plate 3 are welded and fixed, and outer circumference surface and the outer shroud 2 of flange plate 3 are welded and fixed.The external diameter of internal ring 1 is 4347mm, and the external diameter of outer shroud 2 is 5283mm, and the thickness of flange plate is 60mm.Before welding, the part between internal ring 1, outer shroud 2 and two flange plates 3 is in the form of a ring a nonocclusive annular housing, but welding personnel cannot enter into this annular housing carries out welding operation.After welding, the part between internal ring 1, outer shroud 2 and two flange plates 3 is in the form of a ring a closed annular housing.The rotating ring of this structure ensure that the stability of its structure, the stationarity in operation process, and meets the requirement such as safety of the turnover of personnel in use procedure.
In order to satisfied welding reaches the international standard of ISO5817-B, be all arranged to domatic at the inner peripheral surface of flange plate 3 and outer circumference surface.Domatic concrete structure is as follows:
As shown in Figure 2, describedly domaticly comprise first domatic 4, First Transition face 5, second is domatic, first domatic 4 for favouring the inclined-plane of flange plate 3 axis, First Transition face 5 is arc or trapezoidal transition face, preferably, First Transition face 5 is the transition face of arc, second is domaticly made up of domatic body 6 and the second transition face 7 of being connected with this domatic body, domatic body 6 is for favouring the inclined-plane of flange plate 3 axis, second transition face 7 is arc or trapezoidal transition face, preferably, second transition face 7 is the transition face of arc, radius R 1 corresponding to First Transition face is greater than the radius R 2 corresponding to the second transition face, radius R 1 corresponding to First Transition face is 10-20mm, radius R 2 corresponding to second transition face is 2-4mm, preferably, radius R 1 corresponding to First Transition face is 15mm, radius R 2 corresponding to second transition face is 2mm.
As shown in Figure 2, one end of first domatic 4 intersects at the first axial end 3a of flange plate 3, first domatic 4 is connected with second domatic one end by First Transition face 5, and the part between the second domatic other end and the second axial end 3b of flange plate 3 forms root root face 8.Described first axial end 3a and the second axial end 3b are respectively two relative axial ends of flange plate 3, First Transition face 5 is concrete with the second domatic connection is, First Transition face 5 is connected with one end of domatic body 6, the other end of domatic body 6 is connected with the second transition face 7, and described root root face 8 formed by the part between the second transition face 7 and the second axial end 3b of flange plate 3.The height c of described root root face 8 is 2-3mm, and the height c preferred value of root root face 8 is 2.5mm, and the width preferred value of root root face 8 is 2mm.
As shown in Figure 2, because domatic body 6 is for favouring the inclined-plane of flange plate 3 axis, angle α is formed between second domatic and flange plate 3, second domatic and flange plate axially between angle α 50-55 to spend (this angle α is root angle), particularly, second domatic and flange plate axially between angle α axially formed with flange plate 3 by domatic body 6, preferably, angle α is 53 degree.Because first domatic 4 for favouring the inclined-plane of flange plate 3 axis, therefore, angle β is formed between first domatic 4 and flange plate 3, described second domatic and flange plate axially between angle α, be greater than the angle β between first domatic 4 and flange plate 3 axis, preferably, angle β is 20 degree.
As Fig. 1, shown in Fig. 3 and Fig. 4, groove 9 is formed between domatic and outer shroud 2 on described outer circumference surface, root root face on outer circumference surface and leave gap b (this gap is the root gap b between flange plate 3 root and outer shroud) between outer shroud, root root face on described outer circumference surface and the gap b between outer shroud are 3-5mm, groove is formed (because Fig. 3 is Local map between domatic and internal ring on described inner peripheral surface, therefore, the part between inner peripheral surface and internal ring is not illustrated), root root face on inner peripheral surface with leave gap (this gap same is root gap) between internal ring, root root face on inner peripheral surface and the gap between internal ring are 3-5mm, preferably, this gap is 4mm.On described excircle the first domatic end crossing with flange plate first axial end, and the spacing L1 between outer shroud is 32-50mm, on described inner peripheral surface the first domatic end crossing with flange plate first axial end, and the spacing between internal ring is 32-50mm, the porch width of namely above-mentioned groove is 32-50mm, and the porch width value of groove is preferably 40.5mm.
As shown in Figure 1, Figure 3 and Figure 4, groove 9 between domatic and outer shroud 2 on described outer circumference surface, and root root face on excircle and the gap b between outer shroud, filled by the form of single welding, the outer circumference surface of flange plate and outer shroud are fused be integrated, groove between domatic and internal ring on inner peripheral surface, and root root face on inner peripheral surface and the gap between internal ring, filled by the mode of single welding, the inner peripheral surface of flange plate and internal ring are fused and is integrated; After welding, outer shroud 2, internal ring 1 and two pieces of flange plates 3 surround a closed cavity 10.
According to the requirement of ISO5817-B level, rotating ring actual size according to the present invention calculates, the maximum 3mm of root reinforcement of this rotating ring, root bounces back maximum 0.5mm, and in order to reach the requirement of full penetration weld, one side welding with back formation, done a large amount of contrast tests in conjunction with practice, its result is as table 1:
Table 1
From above result of the test, groove of the present invention can meet the analysis of causes of weld seam requirement:
Good full penetration weld main cause can be obtained to have for the welding of existing design connects:
One, root root face reach 2-3mm, and root gap is 3-5mm, and this is in the fusion degree of depth of conventional welding method (gas protects weldering, argon tungsten-arc welding etc.), thus makes its through welding;
Two, root angle 50-55 degree, because to root, the gas hood of conventional welding equipment deeply can ensure that its effective electrode stretches out length, thus also just ensures its welding quality by root penetration.
In addition, except the rotating ring of structure shown in design drawing 4, have also been devised the rotating ring shown in Fig. 5 and Fig. 6, equally Welding experiment has been carried out to the rotating ring of structure shown in Fig. 5 and Fig. 6, its design parameter is as shown in table 2 below, result of the test draws the requirement that cannot meet full penetration weld, more cannot reach the welding requirements of ISO5817-B.
Table 2
| Root angle α, degree | Root root face c, mm | Root gap b, mm |
| 20 | 12 | 0 |
Groove type shown in Fig. 5 can not meet the analysis of causes that weld seam requires:
One, root root face reaches 12mm and root gap is 0, this for welding method its effectively fusion degree of depth be generally 2-3mm, therefore all can not penetration.Two, root angle only 20 degree, because the gas hood (being generally 22-24mm) of conventional welding equipment deeply also just cannot cannot make root penetration to root.Adopt such joint geometry postwelding can leave the lack of penetration of about 10mm or incomplete fusion defect on the opposite of groove in a word.
Finally, by difform for Fig. 4 and Fig. 5 two kinds groove contrast is not difficult to find, a comparatively suitable proportion relation is needed for the root root face on flange plate and root gap and could obtain qualified full penetration weld, namely root root face is large and root gap is also large within the specific limits, otherwise root root face is little also little with root gap.
Root root face and root gap have a comparatively suitable proportionate relationship to obtaining full penetration weld: root root face is larger and root gap is less, then root bounces back larger, even produces lack of penetration; Otherwise root root face is less and root gap is larger, then root reinforcement is larger, even produces and burn.
Claims (10)
1. the rotating ring in medical proton instrument treatment cabin, is characterized in that: comprise internal ring, outer shroud and two flange plates in the form of a ring, flange plate lays respectively between internal ring and outer shroud, and the inner peripheral surface of flange plate and outer circumference surface are all arranged to domatic;
Described domatic first domatic, the First Transition face, second domatic of comprising, First Transition face is arc or trapezoidal transition face, first domatic one end intersects at the first axial end of flange plate, first is domaticly connected with second domatic one end by First Transition face, and the part between the second domatic other end and the second axial end of flange plate forms root root face; Form groove between domatic and outer shroud on described outer circumference surface, between the root root face on outer circumference surface and outer shroud, leave gap, between the domatic and internal ring on described inner peripheral surface, form groove, between the root root face on inner peripheral surface and internal ring, leave gap;
Groove between domatic and outer shroud on described outer circumference surface, and root root face on excircle and the gap between outer shroud, filled by the form of single welding, the outer circumference surface of flange plate and outer shroud fused and is integrated; Groove between domatic and internal ring on inner peripheral surface, and root root face on inner peripheral surface and the gap between internal ring, filled by the mode of single welding, the inner peripheral surface of flange plate and internal ring fused and is integrated; After welding, outer shroud, internal ring and two cover plates surround a closed cavity.
2. the rotating ring in medical proton instrument treatment cabin according to claim 1, is characterized in that: the second domatic and flange plate axially between angle be 50-55 to spend.
3. the rotating ring in medical proton instrument treatment cabin according to claim 1 and 2, is characterized in that: described second domatic and flange plate axially between angle, be greater than the first domatic and flange plate axially between angle.
4. the rotating ring in medical proton instrument treatment cabin according to claim 1, it is characterized in that: the root root face on described excircle and the gap between outer shroud are 3-5mm, the root root face on inner periphery and the gap between internal ring are 3-5mm.
5. the rotating ring in medical proton instrument treatment cabin according to claim 1, is characterized in that: the height of described root root face is 2-3mm.
6. the rotating ring in medical proton instrument treatment cabin according to claim 1, it is characterized in that: second is domaticly made up of domatic body and the second transition face of being connected with this domatic body, and described root root face formed by the part between the second transition face and the second axial end of flange plate.
7. the rotating ring in medical proton instrument treatment cabin according to claim 6, is characterized in that: the radius corresponding to First Transition face is greater than the radius corresponding to the second transition face.
8. the rotating ring in medical proton instrument treatment cabin according to claim 7, it is characterized in that: the radius corresponding to First Transition face is R1 is 10-20mm, the radius corresponding to the second transition face is R2 is 2-4mm.
9. the rotating ring in medical proton instrument treatment cabin according to claim 1, is characterized in that: the porch width of described groove is L1 is 32-50mm.
10. the rotating ring in medical proton instrument treatment cabin according to claim 1, it is characterized in that: the external diameter of described outer shroud is 5283mm, the external diameter of internal ring is 4347mm, and the thickness of flange plate is 60mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510412501.5A CN105031831B (en) | 2015-07-14 | 2015-07-14 | The rotating ring of medical proton instrument treatment tank |
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| CN201510412501.5A CN105031831B (en) | 2015-07-14 | 2015-07-14 | The rotating ring of medical proton instrument treatment tank |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722351A (en) * | 2008-10-28 | 2010-06-09 | 宝山钢铁股份有限公司 | Method for controlling quality of linerless single-sided welding double-sided molding backing weld seam |
| CN103182150A (en) * | 2011-12-27 | 2013-07-03 | 上海世鹏实验室科技发展有限公司 | Radiotherapy equipment |
| DE102013213722A1 (en) * | 2013-07-12 | 2015-01-15 | Siemens Aktiengesellschaft | Revolving frame for the gantry of a computer tomograph |
| CN104708172A (en) * | 2015-02-13 | 2015-06-17 | 山西平阳重工机械有限责任公司 | Full penetration weld method for fillet joint single-face J-shaped groove of box beam of vibration screen |
-
2015
- 2015-07-14 CN CN201510412501.5A patent/CN105031831B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722351A (en) * | 2008-10-28 | 2010-06-09 | 宝山钢铁股份有限公司 | Method for controlling quality of linerless single-sided welding double-sided molding backing weld seam |
| CN103182150A (en) * | 2011-12-27 | 2013-07-03 | 上海世鹏实验室科技发展有限公司 | Radiotherapy equipment |
| DE102013213722A1 (en) * | 2013-07-12 | 2015-01-15 | Siemens Aktiengesellschaft | Revolving frame for the gantry of a computer tomograph |
| CN104708172A (en) * | 2015-02-13 | 2015-06-17 | 山西平阳重工机械有限责任公司 | Full penetration weld method for fillet joint single-face J-shaped groove of box beam of vibration screen |
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