Adjusting device and method for magnetic channel of cyclotron

By using a three-dimensional control mechanism in the cyclotron to adjust the position and angle of the magnetic channel from two degrees of freedom, the inefficiency problem caused by vacuum failure is solved, and efficient and accurate beam injection and extraction are achieved.

CN119967695APending Publication Date: 2025-05-09INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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Patent Information

Application Number
CN202510435930.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2025-05-09

AI Technical Summary

Technical Problem

In existing cyclotrons, the position and angle adjustment of the magnetic channel requires the vacuum to be destroyed, resulting in reduced vacuum seal reliability, reduced beam feeding time and inefficient efficiency.

Method used

The three-dimensional control mechanism is used as the driving component to actively adjust the position and angle of the injection and extraction magnetic channels of the cyclotron from two degrees of freedom, and achieve flexible position adjustment through the spherical block and spherical seat.

Benefits of technology

Magnetic channel regulation without destroying the vacuum is achieved, the beam injection and extraction quality and efficiency are improved, the beam supply time is extended, and the risk of radiation exposure of personnel during the regulation process is reduced.

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Abstract

The invention relates to an adjusting device and method for a magnetic channel of a cyclotron, and the device comprises a fuse injection element which is disposed in a vacuum cavity of the cyclotron; the connecting assembly is located outside the vacuum cavity of the cyclotron, the connecting assembly is connected with the outer wall of the vacuum cavity of the cyclotron and located in the radial direction of the cyclotron, and the first end of the connecting assembly is connected with the fuse injection element; the driving assembly is located outside the vacuum cavity of the cyclotron, the driving assembly is connected with the second end of the connecting assembly, and the driving assembly comprises a first driving assembly and a second driving assembly; and the control unit is used for acquiring position information of the fuse injection element, analyzing position errors and further controlling the first driving assembly and the second driving assembly to perform multi-angle adjustment on the position of the fuse injection element. According to the device, the three-dimensional regulation and control mechanism is used as a driving assembly, and the positions and angles of the injection and extraction magnetic channels of the cyclotron are remotely, online and actively adjusted from two degrees of freedom, so that high-efficiency injection and extraction of beams are realized.
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Description

Technical Field

[0001] The invention relates to an adjusting device and method for a cyclotron magnetic channel, belonging to the technical field of cyclotron beam injection and extraction. Background Art

[0002] A cyclotron is a device used to accelerate charged particles to obtain high-energy beams. It can accelerate proton and heavy ion beams. Since the cyclotron operates stably, can output continuous beams, and can quickly adjust the beam intensity, it is increasingly widely used in the field of nuclear technology applications. This makes it have a series of obvious advantages in tumor treatment compared to traditional photon, X-ray and other radiotherapy, such as high precision (millimeter level) of heavy ion beam therapy, relatively concentrated dose, short irradiation treatment time, high efficacy, little damage to healthy tissues around the tumor, and real-time monitoring, which is convenient for controlling the irradiation position and dose. In addition, heavy ions can also be used for mutagenesis in crop breeding and provide ground simulation of single particle effects of spacecraft electronic devices.

[0003] The movement of the beam in the cyclotron can be divided into three stages: injection, acceleration and extraction. The injection and extraction stages are crucial to the quality and efficiency of the beam. The magnetic channel is the key element for the injection and extraction of the beam in the cyclotron. Usually, its position and angle need to be adjusted according to the different types and parameters of the beam to improve the quality and efficiency of beam injection and extraction.

[0004] The injection and extraction magnetic channels are usually installed in the vacuum chamber of the cyclotron and are vacuum insertion components. If the vacuum is broken to adjust the position and angle of the magnetic channels, frequent vacuum breaking will reduce the reliability of vacuum sealing, reduce the beam supply time, and reduce efficiency. Therefore, inventing a device with a simple structure and online remote adjustment of the magnetic channel is of great significance to improving the quality and efficiency of the injection and extraction beams of the cyclotron and improving the beam supply time. Summary of the invention

[0005] In response to the above technical problems, the present invention provides an adjustment device and method for a cyclotron magnetic channel, which utilizes a three-dimensional control mechanism as a driving component to remotely and actively adjust the position and angle of the cyclotron injection and extraction magnetic channels in two degrees of freedom online to match different beams, thereby achieving efficient injection and extraction of the beam.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A regulating device for a cyclotron magnetic channel, characterized by comprising: An injection element is arranged in the vacuum chamber of the cyclotron; A connecting component is located outside the vacuum chamber of the cyclotron, the connecting component is connected to the outer wall of the vacuum chamber of the cyclotron and is located in the radial direction of the cyclotron, and the first end of the connecting component is connected to the injection element; A driving assembly is located outside the vacuum chamber of the cyclotron, the driving assembly is connected to the second end of the connecting assembly, and the driving assembly includes a first driving assembly and a second driving assembly; The control unit is used to obtain the position information of the injection element and analyze the position error, thereby controlling the first drive assembly and the second drive assembly to adjust the position of the injection element at multiple angles.

[0007] The regulating device for the cyclotron magnetic channel, preferably, the connecting assembly comprises a connecting plate, a transmission flange, a connecting flange, a locking sleeve and a positioning flange connected in series in sequence, the first end of the connecting plate is connected to the output end of the driving assembly, the outer wall of the locking sleeve is provided with a spherical block, and the inner wall of the locking sleeve is connected to the injection element.

[0008] The regulating device for the magnetic channel of the cyclotron is preferably provided with a connecting pressure plate between the connecting flange and the locking sleeve, a Havers block is provided between the connecting flange and the connecting pressure plate, the spherical block is connected to the ball seat flange via a spherical seat and a fixed sleeve, and the connecting assembly is connected to the outer wall of the vacuum chamber of the cyclotron via the ball seat flange; An adjusting sleeve is arranged between the spherical seat and the fixed sleeve, and the inner wall surface of the locking sleeve is made to have an interference fit with the injection element by squeezing the spherical seat, thereby controlling the axial rotational freedom of the injection element.

[0009] The regulating device for the magnetic channel of a cyclotron is preferably configured such that the first driving component is connected to the injection element via the connecting component, the first movable portion within the first driving component moves back and forth along the radial direction of the cyclotron, the second driving component is vertically arranged on the first driving component, and is also connected to the injection element via the connecting component, and the second movable portion of the second driving component swings left and right along the radial direction of the cyclotron.

[0010] The regulating device for the cyclotron magnetic channel, preferably, the first driving assembly is connected to the movable bending plate through the first driving assembly transmission flange, the movable bending plate is slidably arranged on the vertical guide rail seat through the guide rail, and the first driving assembly includes the first moving part and a first driving mechanism for driving the first moving part; The second driving component is also arranged on the vertical guide rail seat, and comprises the second moving part and a second driving mechanism for driving the second moving part.

[0011] The regulating device for the cyclotron magnetic channel, preferably, the first driving mechanism comprises a worm gear reducer, a first ball screw and a first nut, the worm gear reducer is detachably arranged on the vertical guide rail seat, one end of the first ball screw is connected to the driving end of the worm gear reducer, and the other end is connected to the movable bending plate through a coupling, the first nut is rotatably arranged on the first ball screw and connected to the connecting ear plate, and the connecting ear plate is connected to the connecting plate; The second driving mechanism includes a driving motor, a second ball screw and a second nut. The driving motor is detachably arranged on a connecting support plate. One end of the second ball screw is connected to the output end of the driving motor, and the other end is arranged on a fixed support plate through a bearing support seat. The second nut is rotatably arranged on the second ball screw, and the second nut is connected to the movable bending plate through a nut seat.

[0012] In the regulating device for the cyclotron magnetic channel, preferably, the first moving part comprises a connecting slot plate, the connecting ear plate and a nut connecting sleeve, and the connecting slot plate and the nut connecting sleeve are both sleeved on the first ball screw; The second moving part includes the nut seat and the movable bending plate.

[0013] In the regulating device for the cyclotron magnetic channel, preferably, the second driving mechanism is provided with a travel anti-collision block and a left and right switch for limiting the swing, so as to ensure the safety of the movement of the injection element in the cyclotron.

[0014] In the regulating device for the cyclotron magnetic channel, preferably, the upper and lower contact points between the vertical guide rail seat and the movable bending plate are both provided with sliding guide rails for improving movement stability.

[0015] A second aspect of the present invention provides a method for using a regulating device for a cyclotron magnetic channel, comprising the following steps: The driving assembly drives the injection element arranged in the vacuum chamber of the cyclotron to a corresponding position, and the control unit obtains the current position of the injection element; The control unit analyzes the position error of the injection element and starts the first driving component, the first driving component controls the injection element to move forward and backward along the radial direction of the cyclotron, and the second driving component controls the injection element to swing left and right along the radial direction of the cyclotron, thereby realizing multi-angle adjustment of the spatial position of the injection element.

[0016] The present invention adopts the above technical solution, which has the following advantages: 1. The regulating mechanism of the cyclotron injection and extraction magnetic channels of the present invention is a remote online regulating device, which does not need to destroy the vacuum of the cyclotron and does not require personnel to frequently enter the radiation area, and has the advantages of high regulating efficiency and high precision.

[0017] 2. The present invention realizes the position maintenance and flexible angle adjustment of the magnetic channel through the spherical block and the spherical seat.

[0018] 3. The main body of the transmission device (including the connection component 2 and the drive component 3) in the present invention is arranged to be connected with plates to form a cavity, which can effectively reduce the weight of the overall structure and is conducive to the extraction of water and electricity from the magnetic channel and the inspection and maintenance.

[0019] 4. The cyclotron injection and extraction magnetic channel regulating mechanism of the present invention is not only applicable to room temperature heavy ion cyclotrons, but also to proton cyclotrons and superconducting cyclotrons, and is a universal regulating device.

[0020] 5. The regulating mechanism for the injection and extraction magnetic channels of the cyclotron in the present invention is installed outside the vacuum chamber of the cyclotron, and can remotely and actively adjust the position and angle of the injection and extraction elements online in two degrees of freedom. It can not only control the injection and extraction elements to move forward and backward along the radial direction of the cyclotron, but also swing along the tangential direction of the cyclotron. Compared with the existing single-degree-of-freedom regulating mechanism, it can greatly improve the position accuracy and flexibility of the injection and extraction elements, thereby improving the quality and extraction efficiency of the beam.

[0021] 6. The cyclotron injection and extraction magnetic channel adjustment mechanism of the present invention adopts an orthogonal arrangement for radial position adjustment and angle adjustment, has no coupling, has a compact structure, and is easy to adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 An overall schematic diagram of an adjustment device for a cyclotron magnetic channel provided by an embodiment of the present invention; Figure 2 A schematic diagram of the connection between the regulating device for the cyclotron magnetic channel and the accelerator vacuum chamber provided in this embodiment of the present invention; Figure 3 A schematic diagram of a drive assembly provided for this embodiment of the present invention (the movable bending plate 17 hides the movable bending plate rib); Figure 4 A schematic diagram of a first drive assembly provided in this embodiment of the present invention; Figure 5 A schematic diagram of a second driving assembly provided in this embodiment of the present invention; Figure 6 A schematic diagram of a worm gear reducer provided in this embodiment of the present invention; Figure 7A schematic diagram of a drive assembly provided for this embodiment of the present invention; Figure 8 An axonometric view of a movable bending plate provided in this embodiment of the present invention; Fig. 9 An axonometric view of a connecting slot plate provided for this embodiment of the present invention; The reference numerals in the figures are as follows: 1- injection element; 2- connection assembly; 3- driving assembly; 4- positioning flange; 5- adjusting sleeve; 6- ball seat flange; 7- connection flange; 8- transmission flange; 9- connection plate; 10- Haver block; 11- connection pressure plate; 12- fixed sleeve; 13- spherical seat; 14- spherical block; 15- locking sleeve; 16- connection groove plate; 17- moving bending plate; 18- connection ear plate; 19- travel anti-collision block; 20- left and right switch; 21- sliding guide rail pressure plate; 22- sliding Moving guide rail; 23-triangular reinforcement rib; 24-horizontal guide rail seat; 25-vertical guide rail seat; 26-fixed support plate; 27-bearing support seat; 28-nut seat; 29-second nut; 30-nut seat cover; 31-second ball screw; 32-connecting support plate; 33-coupling; 34-nut connecting sleeve; 35-first ball screw; 36-first nut; 37-first drive assembly transmission flange; 38-worm wheel; 39-transmission output shaft; 40-worm. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention is described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work are within the scope of protection of the present invention.

[0024] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second", "third", "fourth" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0025] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside", "outside", "inner side", "outer side", "below", "above", etc. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures.

[0026] The injection and extraction magnetic channels are usually installed in the vacuum chamber of the cyclotron and are vacuum insertion components. If the vacuum is destroyed to adjust the position and angle of the magnetic channels, frequent vacuum destruction will reduce the reliability of the vacuum seal, reduce the beam supply time, and reduce efficiency. Even if the vacuum is not destroyed, if the magnetic channel does not have the remote online continuous active adjustment function, each time the beam is changed, it is necessary to stop and wait for the dose to decay before entering the radiation area for manual adjustment, and multiple adjustments are required to adapt to the injection and extraction radius and angle of different beams, which is inefficient and seriously reduces the beam supply time. Therefore, inventing a device with a simple structure and online remote adjustment of the magnetic channel is of great significance to improving the quality and efficiency of the injection and extraction beams of the cyclotron and improving the beam supply time.

[0027] Based on the above technical problems, the present invention provides an adjustment device and method for a cyclotron magnetic channel, which uses a three-dimensional control mechanism as a driving component to actively adjust the position and angle of the cyclotron injection and extraction magnetic channels in two degrees of freedom, thereby achieving high-efficiency injection and extraction of the beam.

[0028] like Figures 1 to 3As shown, the regulating device for the magnetic channel of the cyclotron involved in the present invention comprises: an injection element 1 arranged in the vacuum chamber of the cyclotron, and a connecting assembly 2 and a driving assembly 3 arranged outside the vacuum chamber of the cyclotron, the connecting assembly 2 being fixed to the outer wall surface of the cyclotron through a ball seat flange 6, the driving assembly 3 comprising a first driving assembly and a second driving assembly, the first driving assembly being connected to the movable bending plate 17 through a first driving assembly transmission flange 37, the movable bending plate 17 being slidably arranged on a vertical guide rail seat 25 through a guide rail, the second driving assembly being arranged on the vertical guide rail seat 25 and vertically arranged below the first driving assembly, the movement directions of the first driving assembly and the second driving assembly being perpendicular to each other, when the injection element 1 is moved into position, The control unit obtains the position information of the injection element 1, and analyzes the position error, and then controls the first drive assembly and the second drive assembly to adjust the position of the injection element 1. Compared with the existing single-degree-of-freedom end adjustment mechanism, the present invention can greatly improve the position accuracy and adjustment efficiency of the injection element 1. It is an active adjustment mechanism for the position of the magnetic channel for beam adjustment, which can be adjusted online in real time to improve the quality and efficiency of the injection beam. In addition, the first drive assembly adopts a worm gear reducer. Since the worm gear reducer has many advantages such as compact structure, high transmission efficiency, strong load-bearing capacity, stable and reliable operation, it not only ensures the stability of the connection and provides adjustment accuracy, but also ensures the service life of the overall device and the compactness of the end drive assembly device.

[0029] like Figure 2 As shown, the connection assembly 2 includes a connection plate 9, a transmission flange 8, a connection flange 7, a locking sleeve 15, a spherical block 14, a spherical seat 13, a fixed sleeve 12 and a positioning flange 4. The first end of the connection plate 9 is connected to the output end of the drive assembly 3, and the second end is connected to the transmission flange 8 through bolts. The second end of the transmission flange 8 is connected to the connection flange 7 through bolts. The second end of the connection flange 7 is connected to the locking sleeve 15 through bolts. The second end face of the locking sleeve 15 is connected to the positioning flange 4. The outer surface of the locking sleeve 15 is connected to the inner surface of the spherical block 14. The inner surface of the locking sleeve 15 is connected to the injection element 1 in the cyclotron. The first end refers to Figure 2 The second end refers to the right side of each component in Figure 2 on the left side of each component.

[0030] like Figure 3 , 4As shown, the first drive assembly includes: a connecting slot plate 16, a connecting ear plate 18, a nut connecting sleeve 34, a horizontal guide rail seat 24, a vertical guide rail seat 25, a first drive assembly transmission flange 37 and a first drive mechanism for the first moving part, the vertical guide rail seat 25 is the base of the first drive assembly, the combination of the connecting slot plate 16, the connecting ear plate 18 and the nut connecting sleeve 34 is the first moving part, and the nut connecting sleeve 34 is connected to the first drive mechanism. The travel anti-collision block 19 is fixed on the movable bending plate 17.

[0031] like Figure 3 , 5 As shown, the second drive assembly includes: a fixed support plate 26, a bearing support seat 27, a nut seat 28, a connecting support plate 32, a coupling 33, a movable bending plate 17 and a second drive mechanism for driving the second moving part. The vertical guide rail seat 25 is the base of the second drive assembly. The combination of the nut seat 28 and the movable bending plate 17 is the second moving part. The upper and lower sides of the vertical guide rail seat 25 are both horizontally provided with sliding guide rails 22. The side of the sliding guide rail 22 close to the connecting ear plate 18 is provided with a sliding guide rail pressure plate 21. The sliding guide rail pressure plate 21 is fixed on the vertical guide rail seat 25 and the movable bending plate 17 to prevent the sliding guide rail 22 from being separated from the set position. The movable bending plate 17 is arranged on the nut seat 28 and connected to the second drive mechanism. The left and right switches 20 are fixedly connected to the vertical guide rail seat 25. The travel anti-collision block 19 and the left and right switches 20 are used to ensure the safety of the injection element 1 moving in the cyclotron.

[0032] like Figure 4 As shown, the driving method selected by the present invention is a screw drive with higher driving accuracy. The specific setting method is: the first driving mechanism includes a worm gear reducer, a first ball screw 35, and a first nut 36. The worm gear reducer is detachably arranged on the vertical guide rail seat 25. One end of the first ball screw 35 is connected to the driving end of the worm gear reducer, and the other end is fixed to the movable bending plate 17 through a coupling. The first nut 36 is rotatably arranged on the first ball screw 35. The first nut 36 and the nut connecting sleeve 34 are clearance-matched and relatively non-rotatable through a pin shaft. The nut connecting sleeve 34 is fixedly connected to the connecting ear plate 18 by bolts. The nut connecting sleeve 34 and the first nut 36 are connected by a pin shaft to prevent rotation. The connecting ear plate 18 is fixedly connected to the connecting plate 9.

[0033] like Figure 5As shown, the second driving mechanism includes: a driving motor, a second ball screw 31, a second nut 29, and a nut seat cover 30. The driving motor is detachably arranged on the connecting support plate 32. One end of the second ball screw 31 is connected to the output end of the driving motor, and the other end is arranged on the fixed support plate 26 through a bearing support seat 27. The second nut 29 is rotatably arranged on the second ball screw 31, and one end of the second nut 29 is fixedly connected to the movable bending plate 17 through a nut seat 28. The other end of the second nut 29 is provided with a nut seat cover 30.

[0034] like Figure 4 , Figure 5 , Figure 6 As shown, the transmission method between the drive motor and the screw can be divided into coupling 33 transmission or transmission output shaft 39 transmission, and the specific method is: the worm wheel 38 of the worm gear reducer is connected to the first ball screw 35 through the transmission output shaft 39 and the worm 40, and the drive motor is connected to the second ball screw 31 through the coupling 33.

[0035] Furthermore, if Figure 3 As shown, when the travel anti-collision block 19 swings left and right with the second moving part, the left and right switches 20 are triggered to achieve left and right limit adjustment of the angle, so as to prevent the injection element 1 from touching other components inside the cyclotron, ensuring safe and reliable operation. Figure 4 As shown, the first moving part determines the moving stroke of the first nut 36 according to the radial moving stroke of the injection element 1 and the length of the first ball screw 35, so as to ensure the radial moving safety of the injection element 1. Since the movable bending plate 17 is arranged horizontally on the vertical guide rail seat 25, and the movable bending plate 17 carries the first ball screw 35 and the second driving assembly, the stress is easily concentrated at the connection between the vertical guide rail seat 25 and the horizontal guide rail seat 24. In order to ensure the stability and reliability of the connection, a triangular reinforcing rib 23 for improving the structural strength is arranged at the angle between the vertical guide rail seat 25 and the horizontal guide rail seat 24, which can greatly strengthen the structural strength between the first driving assembly and the second driving assembly and extend the service life of the device.

[0036] In order to improve the stability of the transmission device (including the connecting component 2 and the driving component 3) during movement, sliding guide rails 22 for improving movement stability are provided at the contact points between the vertical guide rail seat 25 and the upper and lower ends of the movable bending plate 17. The sliding guide rails 22 are detachably fixed to the vertical guide rail seat 25 and the movable bending plate 17 by bolts to facilitate subsequent replacement.

[0037] The transmission device (including the connecting component 2 and the driving component 3) in the present invention is mainly used in combination with a connecting plate and a connecting rod, which can effectively reduce the weight of the overall adjustment mechanism, thereby reducing the load-bearing size at the connection between the end driving component and the cyclotron, further ensuring the stability of the connection between the two, and improving the service life and adjustment accuracy.

[0038] The present invention also provides a method for using the regulating device for a cyclotron magnetic channel, comprising the following steps: 1) The driving assembly drives the injection element 1 arranged in the vacuum chamber of the cyclotron to a corresponding position, and the control unit obtains the end position of the current injection element 1; 2) The control unit analyzes the position error of the injection and introduction component 1, starts the first drive component, rotates the worm reducer and controls the injection and introduction component 1 to move forward and backward through the first ball screw 35, drives the motor to rotate and controls the injection and introduction component 1 to swing left and right through the second ball screw 31, thereby adjusting the spatial position of the injection and introduction component 1 and accurately controlling the position of the injection and introduction component 1.

[0039] The regulating device for the cyclotron magnetic channel of the present invention is installed outside the vacuum chamber of the cyclotron, and realizes the position and angle adjustment of the injection element 1 from two degrees of freedom. It can not only control the injection element 1 to move back and forth along the radial direction of the cyclotron, but also swing along the tangential direction of the cyclotron. Compared with the existing single-degree-of-freedom regulating mechanism, it can greatly improve the position accuracy and flexibility of the injection element 1, thereby improving the quality and extraction efficiency of the beam.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A regulating device for a cyclotron magnetic channel, characterized in that: include: An injection element (1) is arranged in the vacuum chamber of the cyclotron; A connecting component (2) is located outside the vacuum chamber of the cyclotron, the connecting component (2) is connected to the outer wall of the vacuum chamber of the cyclotron and is located in the radial direction of the cyclotron, and the first end of the connecting component (2) is connected to the injection element (1); A driving assembly (3) is located outside the vacuum chamber of the cyclotron, the driving assembly (3) is connected to the second end of the connecting assembly (2), and the driving assembly (3) comprises a first driving assembly and a second driving assembly; A control unit, used for acquiring position information of the injection and introduction element (1), analyzing the position error, and then controlling the first drive assembly and the second drive assembly to adjust the position of the injection and introduction element (1) at multiple angles; The connection assembly (2) comprises a connection plate (9), a transmission flange (8), a connection flange (7), a locking sleeve (15) and a positioning flange (4) which are connected in series in sequence. The first end of the connection plate (9) is connected to the output end of the drive assembly (3). The outer wall of the locking sleeve (15) is provided with a spherical block (14). The inner wall of the locking sleeve (15) is connected to the injection element (1).

2. The regulating device for a cyclotron magnetic channel according to claim 1, characterized in that: A connecting pressure plate (11) is installed between the connecting flange (7) and the locking sleeve (15); a Haversian block (10) is installed between the connecting flange (7) and the connecting pressure plate (11); the spherical block (14) is connected to the ball seat flange (6) via a spherical seat (13) and a fixed sleeve (12); and the connecting assembly (2) is connected to the outer wall of the vacuum chamber of the cyclotron via the ball seat flange (6); An adjustment sleeve (5) is arranged between the spherical seat (13) and the fixed sleeve (12), and the spherical seat (13) is pressed so that an inner wall surface of the locking sleeve (15) and the injection element (1) are interference-fitted, thereby controlling the axial rotational freedom of the injection element (1).

3. The regulating device for a cyclotron magnetic channel according to claim 2, characterized in that: The first driving component is connected to the injection element (1) via the connecting component (2), and the first movable part in the first driving component moves forward and backward along the radial direction of the cyclotron. The second driving component is vertically arranged on the first driving component and is also connected to the injection element (1) via the connecting component (2), and the second movable part of the second driving component swings left and right along the radial direction of the cyclotron.

4. The regulating device for a cyclotron magnetic channel according to claim 3, characterized in that: The first drive assembly is connected to the movable bending plate (17) via a first drive assembly transmission flange (37); the movable bending plate (17) is slidably arranged on a vertical guide rail seat (25) via a guide rail; the first drive assembly comprises the first moving part and a first drive mechanism for driving the first moving part; The second driving component is also arranged on the vertical guide rail seat (25), and comprises the second moving part and a second driving mechanism for driving the second moving part.

5. The regulating device for a cyclotron magnetic channel according to claim 4, characterized in that: The first driving mechanism comprises a worm gear reducer, a first ball screw (35) and a first nut (36); the worm gear reducer is detachably arranged on the vertical guide rail seat (25); one end of the first ball screw (35) is connected to the driving end of the worm gear reducer, and the other end is connected to the movable bending plate (17) via a coupling; the first nut (36) is rotatably arranged on the first ball screw (35); the first nut (36) and the nut connecting sleeve (34) are clearance-matched and are relatively non-rotatable via a pin; the nut connecting sleeve (34) is fixedly connected to the connecting ear plate (18) via bolts; and the connecting ear plate (18) is connected to the connecting plate (9); The second driving mechanism comprises a driving motor, a second ball screw (31) and a second nut (29); the driving motor is detachably arranged on a connecting support plate (32); one end of the second ball screw (31) is connected to an output end of the driving motor, and the other end is arranged on a fixed support plate (26) via a bearing support seat (27); the second nut (29) is rotatably arranged on the second ball screw (31), and the second nut (29) is connected to the movable bending plate (17) via a nut seat (28).

6. The regulating device for a cyclotron magnetic channel according to claim 5, characterized in that: The first moving part comprises a connecting slot plate (16), a connecting ear plate (18) and a nut connecting sleeve (34), wherein the connecting slot plate (16) and the nut connecting sleeve (34) are both sleeved on the first ball screw (35); The second movable part comprises the nut seat (28) and the movable bending plate (17).

7. The regulating device for a cyclotron magnetic channel according to claim 6, characterized in that: The second driving mechanism is provided with a travel anti-collision block (19) and a left-right switch (20) for limiting the swing, so as to ensure the safety of the movement of the injection element (1) in the cyclotron.

8. The regulating device for a cyclotron magnetic channel according to claim 7, characterized in that: Sliding guide rails (22) for improving movement stability are provided at the contact points between the vertical guide rail seat (25) and the upper and lower ends of the movable bending plate (17).

9. A method for using the regulating device for a cyclotron magnetic channel according to any one of claims 1 to 8, characterized in that: The steps include: The driving assembly drives the injection element (1) arranged in the cyclotron vacuum chamber to a corresponding position, and the control unit obtains the current position of the injection element (1); The control unit analyzes the position error of the injection element (1) and starts the first drive component, wherein the first drive component controls the injection element (1) to move forward and backward along the radial direction of the cyclotron, and the second drive component controls the injection element (1) to swing left and right along the radial direction of the cyclotron, thereby realizing multi-angle adjustment of the spatial position of the injection element (1).

Citation Information

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