CN108811286B - Overturning platform suitable for linear induction accelerator cavity and overturning method thereof - Google Patents
Overturning platform suitable for linear induction accelerator cavity and overturning method thereof Download PDFInfo
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- CN108811286B CN108811286B CN201810730483.9A CN201810730483A CN108811286B CN 108811286 B CN108811286 B CN 108811286B CN 201810730483 A CN201810730483 A CN 201810730483A CN 108811286 B CN108811286 B CN 108811286B
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Abstract
The invention discloses a turnover platform suitable for a linear induction accelerator cavity and a turnover method thereof, and solves the problems of long time consumption, high labor intensity and low turnover stability in the turnover process of the linear induction accelerator cavity in the prior art. The turnover device comprises a bracket, a cavity tray, a driving device and a positioning structure, wherein the cavity tray is arranged on the bracket through a turnover part; the two overturning parts are respectively arranged on two opposite sides of the cavity tray, the bottom end of each overturning part is fixed on the cavity tray, and the top end of each overturning part is hinged to the support; the driving device is a speed reducer, and the speed reducer drives the overturning part to rotate around the hinged part through a driving belt so as to drive the cavity tray to overturn. The invention has the advantages of effectively improving the working efficiency, reducing the potential safety hazard of the turnover cavity, reducing the labor intensity and the like.
Description
Technical Field
The invention relates to a turnover platform, in particular to a turnover platform suitable for a linear induction accelerator cavity and a turnover method thereof.
Background
The linear induction accelerator is mainly applied to flash radiography, and provides a high-definition picture which provides a reliable basis for implosion dynamics and free electron laser research. The accelerator part of the system is composed of 80 accelerating cavities and 12 injector cavities which are connected in series, and is a key component of flash photography, and 92 cavities need to be overhauled irregularly in the test interval. The working state (the cavity is vertically placed) and the maintenance state (the cavity is horizontally placed) of the cavity are inconsistent, so that the cavity needs to be turned over.
The accelerating cavity weighs 1 ton, the injector weighs 1.5 tons, and the cavity is internally provided with more than ten ferrite magnetic cores with different sizes, and the magnetic cores are made of fragile materials, so that the cavity needs to be installed and turned over by taking extra care to avoid collision.
And because the whole weight of cavity is great among the prior art, when adopting the manual work to overturn with the help of lifting device, the stability of upset is not high, appears vibrating great and then leads to the broken problem of magnetic core easily, and at the upset in-process, it is long and intensity of labour is higher consuming time.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the problems that in the process of overturning the cavity of the linear induction accelerator in the prior art, time is long, labor intensity is high, and overturning stability is not high are solved.
The invention is realized by the following technical scheme:
a turnover platform suitable for a cavity of a linear induction accelerator comprises a bracket, a cavity tray, a driving device and a positioning structure, wherein the cavity tray is arranged on the bracket through a turnover piece;
the two overturning parts are respectively arranged on two opposite sides of the cavity tray, the bottom end of each overturning part is fixed on the cavity tray, and the top end of each overturning part is hinged to the support; the driving device is a speed reducer, and the speed reducer drives the overturning part to rotate around the hinged part through a driving belt so as to drive the cavity tray to overturn;
the positioning structure comprises a positioning disc which is fixed at the hinge position of one of the turnover pieces and is provided with a positioning pin hole, and a positioning pin which is arranged on the positioning pin hole of the positioning disc; the number of the positioning pin holes is two, and the two positioning pin holes form a right angle with a connecting line at the hinged position; when the locating pin is located one of them locating pin hole, the cavity tray is parallel with the plane of horizontal direction, and when the locating pin was located one locating pin hole, the cavity tray was parallel with the plane of vertical direction.
According to the invention, through the arrangement of the structure, the overturning operation of the cavity of the linear induction accelerator can be effectively realized, the operation is quicker and more labor-saving in the overturning process, the power is provided through the speed reducer, the slow and uniform overturning can be realized, the problem of magnetic core breakage caused by low stability in the overturning process is avoided, and the safety is higher.
Furthermore, two circles of positioning holes which are respectively used for the fastening and the fixing of the accelerating cavity and the injector cavity are arranged on the cavity tray, and a nylon tray used for changing the gravity center position is further fixed on the cavity tray.
In order to be suitable for installation and turnover of the acceleration cavity and the injector cavity simultaneously, the cavity tray is provided with two circles of positioning holes which are respectively suitable for installation of the acceleration cavity and the injector cavity, the nylon tray is additionally provided, the gravity centers of the two different cavities are effectively adjusted, the gravity centers formed by combining the nylon tray with the cavity tray and a turnover piece are always kept consistent, the moving distance of the gravity centers is shortest, the work done in the turnover process is minimum, and the force used for turnover is saved.
For the convenience of hoisting, a hoisting opening is further formed in the cavity tray.
In order to better achieve the purpose of stable overturning, one of the two overturning parts is fixed with a positioning structure, the other overturning part is provided with a speed reducing disc, the speed reducing disc is provided with an annular through groove arranged along the rotating direction of the overturning part, and the annular through groove is provided with a speed reducing support rod fixed on the support.
According to the invention, through the interaction between the speed reducing disk and the speed reducing support rod, the friction force between the speed reducing disk and the speed reducing support rod in the overturning process can be increased, so that the acting force of the gravity of the cavity arranged on the cavity tray on the speed reducing device is reduced when the cavity tray is overturned, the load of the speed reducing device is reduced, and the service life of the speed reducing device is prolonged. And, the setting of this structure can also further make the more even upset of chamber and injector cavity with higher speed in the upset process, and the stability of further improvement upset, assurance security performance are convenient for the control of upset speed.
Further, a stop block for preventing the cavity tray from being overturned excessively is arranged on the support below the cavity tray. Through the setting of dog, it not only can avoid on the upset in-process cavity tray cavity to exceed the vertical position of placing of cavity, effectively reaches the restriction upset position, and then the purpose of accurate positioning. And, this setting can also effectively lead to forming the rotatory effort dispersion of upset piece with the focus skew of cavity on the cavity tray to the support, avoids the revolving force to the injury of reduction gear, further prolongs the life of reduction gear.
Further, the transmission belt is a transmission chain or a transmission belt.
A method for overturning an overturning platform suitable for a linear induction accelerator cavity comprises the following steps:
(1) simulating the geometric structures of the acceleration cavity and the injector cavity by utilizing soildworks software to find the gravity center of the cavity;
(2) adjusting a positioning pin on the bracket to enable the cavity tray to be in a horizontal state, and enabling the gravity center formed by combining the cavity tray and the turnover piece to be superposed with the gravity center of the cavity;
(3) horizontally placing the cavity on a cavity tray, and tightly fixing the cavity on the cavity tray through a screw rod;
(4) the positioning pin is pulled out, the speed reducer is started to enable the overturning part to rotate, the cavity tray is driven to overturn to a vertical state, and the positioning pin is inserted to realize that the cavity overturns to the vertical state from a horizontal state.
Through the arrangement of the method, the gravity center of the cavity of the linear induction accelerator can be better superposed with the gravity center formed by combining the cavity tray and the overturning part, so that the moving distance of the gravity center of the cavity of the linear induction accelerator in the overturning process is effectively shortest, the work done in the overturning process is minimum, the force used for overturning is saved, and the aim of saving labor optimally is fulfilled.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention not only can effectively complete the turnover work task of the cavity to achieve different purposes of cavity maintenance and flash test, but also can effectively improve the work efficiency, reduce the potential safety hazard of the turnover cavity and reduce the labor intensity;
2. the invention has simple structure, is beneficial to prolonging the service life of relevant equipment and has very obvious effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic cross-sectional structure of the present invention.
Fig. 3 is a schematic view of a linear induction accelerator cavity mounted on the structure of the present invention.
Reference numbers and corresponding part names in the drawings:
the device comprises a support 1, a nylon tray 2, a cavity tray 3, a turnover part 4, a positioning structure 5, a driving device 6, a speed reducing support rod 7, a stop block 8, a hoisting opening 9 and a speed reducing disc 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
A flipping platform for a linear induction accelerator cavity, comprising: support 1, upset 4, cavity tray 3, drive arrangement 6 and location structure 5, the concrete structure setting of each part is as follows:
the support 1 comprises a base and two supporting seats, and the bottom ends of the supporting seats are arranged on the base.
Upset piece 4 is two, installs respectively on two supporting seats, and this upset piece 4 includes trip shaft and connecting rod, connecting rod top and trip shaft fixed connection, and this connecting rod passes through the trip shaft and articulates in supporting seat top position department.
The cavity tray 3 is positioned between the two supporting seats, and the bottom end of the connecting rod of the turnover part 4 is fixed on the cavity tray 3. After the fixing, the two turning pieces 4 are respectively positioned at two opposite sides of the cavity tray 3.
The driving device 6 is a speed reducer which drives the turnover part 4 to rotate around the hinge joint through a transmission belt, and the cavity tray 3 is driven to turn over.
The positioning structure 5 comprises a positioning disc which is fixed at the hinged position of one of the turnover pieces 4 and is provided with a positioning pin hole, and a positioning pin which is arranged on the positioning pin hole of the positioning disc. The number of the positioning pin holes in the positioning structure 5 is two, and the two positioning pin holes form a right angle with a connecting line at the hinge joint position, as shown in fig. 1. When the positioning pin is located in one of the positioning pin holes, the cavity tray 3 is parallel to the horizontal plane, as shown in fig. 1 and 2, and when the positioning pin is located in one of the positioning pin holes, the cavity tray 3 is parallel to the vertical plane.
The turning process of the turning platform in the embodiment is as follows:
(1) simulating the geometric structures of the acceleration cavity and the injector cavity by utilizing soildworks software to find the center of gravity of the cavity, as shown in fig. 3, the method for simulating the geometric structures of the acceleration cavity and the injector cavity by utilizing soildworks software to find the center of gravity of the cavity belongs to the prior art, and therefore, the detailed description is omitted;
(2) adjusting the positioning pin on the bracket to enable the cavity tray to be in a horizontal state, and enabling the gravity center formed by combining the cavity tray and the turnover part to be superposed with the gravity center of the cavity, as shown in fig. 1;
(3) horizontally placing the cavity on a cavity tray, and tightly fixing the cavity on the cavity tray through a screw rod;
(4) the positioning pin is pulled out, the handle on the speed reducer is rotated to drive the overturning part to rotate, the cavity tray is driven to overturn to a vertical state, and the positioning pin is inserted to realize the overturning of the cavity from a horizontal state to a vertical state.
After the chamber is turned to a vertical state, the chamber can be vertically hoisted to a working position through a special hoisting tool.
Example 2
The difference between this embodiment and embodiment 1 is that the nylon tray 2 is added in this embodiment, and is effectively applied to the fastening positions of the acceleration chamber and the injector chamber at the same time, and the specific settings are as follows:
two circles of positioning holes are arranged on the cavity tray 3, wherein one circle of positioning holes is used for fastening and positioning the accelerating cavity, and the other circle of positioning holes is used for fastening and positioning the injector cavity. Because the gravity centers of the accelerating cavity and the injector cavity are different, the nylon tray 2 is additionally arranged on the cavity tray 3, and the gravity center of the cavity is changed through the nylon tray 2, so that the gravity centers of the accelerating cavity and the injector cavity after installation are effectively consistent with the gravity center formed by combining the cavity tray and the turnover piece, and the structure of the invention can be simultaneously suitable for the turnover of the accelerating cavity and the injector cavity.
In the embodiment, because the outline dimensions and the weights of the acceleration cavity and the injector are different, the nylon tray 2 needs to be connected in the middle when the acceleration cavity is turned over through simulation and calculation of soildworks software, at this time, the gravity center of the acceleration cavity is overlapped with that of the turning platform, and the turning platform is a structure formed after the cavity tray and the turning piece are combined; when the cavity of the injector is turned over, the injector only needs to be directly connected with the cavity tray 3.
Further, in order to facilitate hoisting the repaired cavity to the station, a hoisting opening 9 is further formed in the cavity tray 3, as shown in fig. 1.
Example 3
The difference between this embodiment and embodiment 1 is that in this embodiment, a reduction disk 10 and a reduction strut 7 are added, so as to effectively reduce the load of the speed reducer, and prolong the service life, specifically set as follows:
in the two turning pieces 4, one of the turning pieces 4 is fixed with a positioning structure 5, the other turning piece 4 is provided with a speed reducing disk 10, the speed reducing disk 10 is provided with an annular through groove arranged along the rotating direction of the turning piece 4, and the annular through groove is provided with a speed reducing support rod 7 fixed on the support 1, as shown in fig. 1. In this embodiment, the length of the ports at the two ends of the annular through groove is the same as the length between the two positioning pin holes.
Meanwhile, a stop block 8 for preventing the cavity tray 3 from being overturned excessively is arranged on the support 1 below the cavity tray 3. When the cavity works and rotates, the gravity center of the cavity deviates to drive the turnover part 4 to rotate, so that a torque force is provided for the speed reducer, the force can increase the coincidence of the speed reducer, and the service life of the speed reducer is not long.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The overturning platform suitable for the cavity of the linear induction accelerator is characterized by comprising a support (1), a cavity tray (3) arranged on the support (1) through an overturning part (4), a driving device (6) for driving the overturning part (4) to drive the cavity tray (3) to overturn, and a positioning structure (5) for positioning the cavity tray (3);
the two overturning parts (4) are respectively arranged on two opposite sides of the cavity tray (3), the bottom end of each overturning part (4) is fixed on the cavity tray (3), and the top end of each overturning part (4) is hinged to the support (1); the driving device (6) is a speed reducer, and the speed reducer drives the overturning part (4) to rotate around the hinged part through a driving belt so as to drive the cavity tray (3) to overturn;
the positioning structure (5) comprises a positioning disc which is fixed at the hinged position of one of the turnover pieces (4) and is provided with a positioning pin hole, and a positioning pin which is arranged on the positioning pin hole of the positioning disc; the number of the positioning pin holes is two, and the two positioning pin holes form a right angle with a connecting line at the hinged position; when the positioning pin is positioned on one of the positioning pin holes, the cavity tray (3) is parallel to a plane in the horizontal direction, and when the positioning pin is positioned on one of the positioning pin holes, the cavity tray (3) is parallel to a plane in the vertical direction; a hoisting opening (9) is also arranged on the cavity tray (3); a stop block (8) for preventing the cavity tray (3) from turning excessively is arranged on the support (1) below the cavity tray (3).
2. The overturning platform suitable for the cavity of the linear induction accelerator as claimed in claim 1, wherein the cavity tray (3) is provided with two circles of positioning holes for respectively fixing the accelerating cavity and the injector cavity, and the cavity tray (3) is further fixed with a nylon tray (2) for changing the position of the center of gravity.
3. The overturning platform suitable for the cavity of the linear induction accelerator according to claim 1, wherein one of the two overturning members (4) is fixed with a positioning structure (5), the other overturning member (4) is provided with a speed reducing disc (10), the speed reducing disc (10) is provided with an annular through groove arranged along the rotating direction of the overturning member (4), and the annular through groove is provided with a speed reducing support rod (7) fixed on the bracket (1).
4. The overturning platform for a linear induction accelerator cavity according to claim 1, wherein the transmission belt is a transmission chain or a transmission belt.
5. A method for overturning an overturning platform applicable to a cavity of a linear induction accelerator is characterized by comprising the following steps:
(1) simulating the geometric structures of the acceleration cavity and the injector cavity by utilizing soildworks software to find the gravity center of the cavity;
(2) adjusting a positioning pin on the bracket to enable the cavity tray to be in a horizontal state, and enabling the gravity center formed by combining the cavity tray and the turnover piece to be superposed with the gravity center of the cavity;
(3) horizontally placing the cavity on a cavity tray, and tightly fixing the cavity on the cavity tray through a screw rod;
(4) the positioning pin is pulled out, the speed reducer is started to enable the overturning part to rotate, the cavity tray is driven to overturn to a vertical state, and the positioning pin is inserted to realize that the cavity overturns to the vertical state from a horizontal state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810730483.9A CN108811286B (en) | 2018-07-05 | 2018-07-05 | Overturning platform suitable for linear induction accelerator cavity and overturning method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810730483.9A CN108811286B (en) | 2018-07-05 | 2018-07-05 | Overturning platform suitable for linear induction accelerator cavity and overturning method thereof |
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| CN108811286A CN108811286A (en) | 2018-11-13 |
| CN108811286B true CN108811286B (en) | 2020-03-31 |
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| CN201810730483.9A Active CN108811286B (en) | 2018-07-05 | 2018-07-05 | Overturning platform suitable for linear induction accelerator cavity and overturning method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109954228B (en) * | 2018-12-25 | 2021-03-12 | 江苏海明医疗器械有限公司 | Electronic radiation field image system positioning device for medical accelerator |
| CN110174558B (en) * | 2019-07-08 | 2024-07-19 | 成都奕康真空电子技术有限责任公司 | Automatic measuring device for accelerating cavity chain electric field distribution |
| CN117679062B (en) * | 2024-02-02 | 2024-05-14 | 赛诺威盛科技(北京)股份有限公司 | CBCT lifting and overturning system and CBCT device |
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| JPH02208599A (en) * | 1989-02-09 | 1990-08-20 | Mitsubishi Heavy Ind Ltd | Nuclear fuel transfer facility for nuclear reactor |
| CN201465581U (en) * | 2009-05-19 | 2010-05-12 | 中冶宝钢技术服务有限公司 | Evaporator turning-over device |
| CN201717013U (en) * | 2010-06-30 | 2011-01-19 | 上海核工程研究设计院 | Fuel basket tipping device |
| JP2011043400A (en) * | 2009-08-21 | 2011-03-03 | Hitachi-Ge Nuclear Energy Ltd | Seismic isolation structure and operation method of truck or refueling machine |
| CN102142287A (en) * | 2010-12-23 | 2011-08-03 | 中国原子能科学研究院 | Underwater turnover mechanism for fuel assembly |
| CN206075838U (en) * | 2016-08-17 | 2017-04-05 | 四川华都核设备制造有限公司 | Used in nuclear power station fuel assembly assembling upset platform straight line switching mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208300103U (en) * | 2018-07-05 | 2018-12-28 | 中国工程物理研究院流体物理研究所 | A kind of overturning platform suitable for linear induction accelerator cavity |
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2018
- 2018-07-05 CN CN201810730483.9A patent/CN108811286B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02208599A (en) * | 1989-02-09 | 1990-08-20 | Mitsubishi Heavy Ind Ltd | Nuclear fuel transfer facility for nuclear reactor |
| CN201465581U (en) * | 2009-05-19 | 2010-05-12 | 中冶宝钢技术服务有限公司 | Evaporator turning-over device |
| JP2011043400A (en) * | 2009-08-21 | 2011-03-03 | Hitachi-Ge Nuclear Energy Ltd | Seismic isolation structure and operation method of truck or refueling machine |
| CN201717013U (en) * | 2010-06-30 | 2011-01-19 | 上海核工程研究设计院 | Fuel basket tipping device |
| CN102142287A (en) * | 2010-12-23 | 2011-08-03 | 中国原子能科学研究院 | Underwater turnover mechanism for fuel assembly |
| CN206075838U (en) * | 2016-08-17 | 2017-04-05 | 四川华都核设备制造有限公司 | Used in nuclear power station fuel assembly assembling upset platform straight line switching mechanism |
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