Adjusting device for electrostatic deflection plates of a superconducting cyclotron

Abstract

The application relates to the technical field of electrostatic deflection plate adjustment, and discloses an adjusting device for an electrostatic deflection plate of a superconducting cyclotron, which comprises an electrostatic deflection plate, servo motors, adjusting rods and speed reducers, the servo motors and the adjusting rods are two in number, and rotation support seats are symmetrically fixed on one side of the electrostatic deflection plate close to the adjusting rods, and the adjusting device further comprises an electrically isolated part and a cold creep part; the application innovatively adopts double-section peek insulation shafts and G10 insulation support plates in the structure, forms a whole high-voltage insulation link between a servo motor driving system and the high-voltage deflection plate, effectively avoids the risk of breakdown and electric leakage under high voltage, and realizes two-dimensional decoupling adjustment of the deflection plate under the conditions of vacuum sealing and electrical isolation through the cooperation of the electric cylinder and the rotation support structure in the mechanical structure, so that the beam debugging efficiency and the equipment operation stability are improved without opening the cavity and breaking the vacuum, and the scheme makes up for the deficiency of the prior art in the high-voltage insulation adjustment capability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrostatic deflection plate adjustment, and particularly relates to an adjusting device for an electrostatic deflection plate of a superconducting cyclotron. BACKGROUND

[0002] As a key high-energy beam output device in the current proton therapy system, the superconducting cyclotron has the advantages of high magnetic field strength, strong running stability, compact structure, etc., and is widely used in high-end fields such as proton radiotherapy and nuclear physics research. In the beam extraction process, the electrostatic deflection plate, as a key component, is used to guide the high-energy proton beam from the main magnetic field region to the beam channel, realizing efficient transfer and accurate positioning of the beam. However, due to the influence of many complex factors such as non-uniformity of magnetic field distribution, space charge disturbance, and beam dynamics, the theoretical extraction trajectory often deviates from the actual trajectory, so it is necessary to have an adjustable deflection plate structure to ensure accurate beam extraction.

[0003] In the prior art, the electrostatic deflection plate often uses an internal fine adjustment structure, or can only be indirectly adjusted through internal devices of the accelerator. In the superconducting cyclotron, the device is operated in a harsh environment of high vacuum, high voltage, and strong magnetic field for a long time. Once the deflection plate position needs to be adjusted, the device usually needs to be stopped, the vacuum needs to be broken, the cavity needs to be opened, and the deflection plate position needs to be adjusted. After the adjustment is completed, the cavity needs to be recombined and the vacuum needs to be extracted to the set value. The whole process is complex, time-consuming, and low in efficiency, which seriously affects the beam debugging process and the availability of the device. At the same time, the current deflection plate adjustment structure is designed for a medium-low voltage environment, and it is difficult to meet the strict requirements of insulation performance and operation safety when the deflection plate bears tens of kilovolts of high voltage, and there is a potential risk of discharge and breakdown. SUMMARY

[0004] The present application provides an adjusting device for an electrostatic deflection plate of a superconducting cyclotron, which uses an external adjusting rod to accurately transmit power and sets high-insulation-performance materials in the drive link to realize adjustment outside the vacuum cavity, improve the flexibility and efficiency of beam debugging, and enhance electrical safety and stability.

[0005] To solve the above technical problems, the technical solution of the present application is as follows:

[0006] In a first aspect, a high-voltage insulation adjusting device for an electrostatic deflection plate of a superconducting cyclotron includes a servo motor, a speed reducer, a first insulation shaft and a second insulation shaft, a connecting shaft, a support flange, a high-voltage platform, a vacuum flange, a vacuum bellows, an adjusting rod, a peek connector, a rotary support seat, and a G10 plate. The second insulation shaft is fixed to the electrostatic deflection plate through the rotary support seat, the adjusting rod is connected to the second insulation shaft through the peek connector, and the adjusting rod is connected with the vacuum bellows.

[0007] Further, one end of the vacuum bellows is welded to the adjusting rod, and the other end is welded to the vacuum flange, and the vacuum flange is fixedly connected with the supporting flange through screws to ensure the vacuum environment.

[0008] Further, one end of the connecting shaft is fixedly connected with the adjusting rod through screws, and the other end is fixedly connected with the telescopic end of the electric cylinder through screws.

[0009] Further, the electric cylinder is connected with the speed reducer through the first insulating shaft and the shaft coupling, and the servo motor is connected to the speed reducer to provide power for the electric cylinder.

[0010] Further, the electric cylinder and the speed reducer are fixed on the G10 plate through the fixing plate and the fixing part to realize insulation.

[0011] Further, the up and down adjustment of the electric cylinder is realized through the high-voltage platform.

[0012] Further, the high-voltage insulation of the entire adjusting device is realized through the first insulating shaft, the second insulating shaft and the G10 plate.

[0013] Further, one end of the vacuum bellows is welded to the adjusting rod, and the other end is welded to the vacuum flange, and the vacuum flange is fixedly connected with the supporting flange through screws to ensure the vacuum environment.

[0014] Further, the electric cylinder is connected with the speed reducer through the first insulating shaft and the shaft coupling, and the servo motor is connected to the speed reducer to provide power for the electric cylinder.

[0015] Further, the electric cylinder and the speed reducer are fixed on the G10 plate through the fixing plate and the fixing part to realize insulation.

[0016] Further, the telescopic end of the electric cylinder and the adjusting rod are connected through detachable screws, and cooperate with the high-voltage platform to realize high-precision fine adjustment of the deflection plate in multiple directions (such as front and back, up and down, and angle), meet the adjustment requirements under different beam extraction conditions, and improve the system adaptability and control precision.

[0017] The second aspect, the installation method of the device specifically includes the following steps:

[0018] Step one: the rotating support seat is installed on the electrostatic deflection plate through a screw, and then connected with the second insulating shaft through a rotating shaft, and then the two ends of the peek connector are fixed with the second insulating shaft and the adjusting rod through a screw, the adjusting rod is inserted into the connecting shaft through the support flange, and then the support flange is fixedly connected with the vacuum flange, so that the vacuum environment in the cavity is ensured.

[0019] Step two: the servo motor is connected with the speed reducer through the first insulating shaft, and the linear motion of the electric cylinder is driven by the electric cylinder transmission shaft, and the connecting shaft, the adjusting rod, the peek connector and the second insulating shaft are driven to move forward and backward, and then the rotating support seat is used to realize the rotating motion of the electrostatic deflection plate.

[0020] Step three: the electric cylinder is connected with the speed reducer through the adjusting block and the bolt, and the position of the electric cylinder is adjusted through the adjusting bolt under the support of the adjusting block.

[0021] The above scheme of the present application at least has the following beneficial effects:

[0022] The servo motor is used to drive the electric cylinder to realize linear motion, and the driving force is accurately transmitted to the deflection plate through the adjusting rod, so that the adjustment operation is completed outside the vacuum cavity, the whole adjustment process does not need to destroy the vacuum, does not need to open the cavity or stop, so that the flexibility and efficiency of the beam debugging are improved, especially suitable for the complex beam extraction scene of the superconducting cyclotron, and the peek insulating shaft and G10 plate with high insulating performance are arranged in the driving link, effective electrical isolation with high voltage electric field is realized, discharge breakdown is prevented, and the electrical safety and long-term stable operation of the adjusting device under the high voltage working condition of the electrostatic deflection plate are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A whole perspective view of the adjusting device of the electrostatic deflection plate of the superconducting cyclotron is provided for the embodiment of the present application.

[0024] Figure 2 A plan view of the combination of the servo motor, the G10 plate, the connecting shaft, the adjusting rod and the electrostatic deflection plate is provided for the embodiment of the present application.

[0025] Figure 3 A perspective view of the combination of the servo motor, the connecting shaft, the adjusting rod and the electrostatic deflection plate is provided for the embodiment of the present application.

[0026] Figure 4 A perspective view of the electric cylinder is provided for the embodiment of the present application.

[0027] Figure 5 A perspective view of the combination of the adjusting rod, the copper pipe and the peek spiral pipe is provided for the embodiment of the present application.

[0028] Figure 6A perspective view of a combination of a peek spiral tube and a heat pipe provided for an embodiment of the present application;

[0029] Figure 7 A perspective view of a hollow cylinder provided for an embodiment of the present application;

[0030] Figure 8 A perspective view of a combination of a corrugated cylinder, an electric rod and a support ring provided for an embodiment of the present application; Figure 2

[0031] Figure 9 A perspective view of a combination of a corrugated cylinder, an electric rod and a support ring provided for an embodiment of the present application;

[0032] Figure 10 A perspective view of a combination of a corrugated cylinder, an electric rod and a support ring provided for an embodiment of the present application; Figure 1

[0033] Figure 11 A perspective view of a combination of a corrugated cylinder, an electric rod and a support ring provided for an embodiment of the present application; Figure 2

[0034] Figure 12 A sectional plan view of a cylinder provided for an embodiment of the present application.

[0035] Explanation of reference signs:

[0036] In the figure: 1, servo motor; 2, speed reducer; 3, first insulating shaft; 4, electric cylinder; 5, connecting shaft; 6, support flange; 7, vacuum flange; 8, vacuum corrugated tube; 9, adjusting rod; 10, peek connector; 11, rotating support seat; 12, G10 plate; 13, second insulating shaft; 14, electrostatic deflection plate; 15, shaft sleeve; 16, fixed plate; 17, support column; 18, support plate; 19, fixed bolt; 20, tripod; 21, through opening; 22, copper pipe; 23, positioning pin; 24, joint; 25, copper water pipe; 26, peek spiral tube; 27, heat pipe; 28, rotating ear; 29, hollow cylinder; 30, corrugated cylinder; 31, one-way valve; 32, rubber tube; 33, cylinder; 34, cylinder hole; 35, fixed rod; 36, push ring; 37, electric rod; 38, support ring; 39, connecting plate; 40, connecting ring; 41, track moving device. DETAILED DESCRIPTION

[0037] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0038] As Figures 1 to 12 ​​​As shown, the embodiment of the application provides a kind of electrostatic deflection plate of superconducting cyclotron adjusting device, including electrostatic deflection plate 14, servo motor 1, adjusting rod 9 and speed reducer 2, servo motor 1 and adjusting rod 9 have two, the driving end of servo motor 1 is connected with speed reducer 2, the driving end of speed reducer 2 is connected with electric cylinder 4, adjusting rod 9 is symmetrically arranged between electrostatic deflection plate 14 and electric cylinder 4, vacuum bellows 8 is sleeved on the outer side of the end of adjusting rod 9 close to electric cylinder 4, the end of vacuum bellows 8 is connected with vacuum flange 7, one end of vacuum flange 7 is connected with support flange 6, support flange 6 and vacuum flange 7 are located on the outer side of adjusting rod 9, and adjusting rod 9 is fixedly connected with the telescopic end of electric cylinder 4 by connecting shaft 5, the side of electrostatic deflection plate 14 close to adjusting rod 9 is symmetrically fixed with rotary support seat 11, further comprising:

[0039] Electrically isolated part, be arranged between servo motor 1 and electrostatic deflection plate 14, and be located below servo motor 1, electrically isolated part includes the connecting spacer between servo motor 1 and electrostatic deflection plate 14, and be connected with electric cylinder 4 and adjusting rod 9, and high voltage platform is fixed below servo motor 1, the connecting spacer includes: peek connector 10, have one, be connected in the end of one of the adjusting rod 9 close to electrostatic deflection plate 14;Second insulation shaft 13, have two, one end of one is rotationally connected with the end of the other adjusting rod 9, and the other end is connected with peek connector 10, to build complete electrical isolation path with the high voltage platform;

[0040] Climbing cold part, be arranged on the outer side of electrostatic deflection plate 14, and be connected with adjusting rod 9 and connecting shaft 5, climbing cold part includes the cold connecting piece of being arranged through connecting shaft 5, and be connected with adjusting rod 9, and the cold insulating piece is symmetrically fixed on the outer side of electrostatic deflection plate 14, and be connected with cold connecting piece, to provide creepage distance and electrical insulation, while cooling electrostatic deflection plate 14.

[0041] Specifically, the one end of the speed reducer 2 is fixed with the shaft sleeve 15, and the shaft sleeve 15 is located on the outer side of the first insulation shaft 3, to protect the first insulation shaft 3, the one end of the second insulation shaft 13 away from the adjusting rod 9 is fixed with the swivel ear 28, the swivel ear 28 is rotationally connected with the rotary support seat 11 by the pivot, and the one end of the adjusting rod 9 away from the connecting shaft 5 is rotationally connected with the one end of the second insulation shaft 13 away from the electrostatic deflection plate 14 by the rotary support seat 11 and the pivot.

[0042] The fixed plate 16 can provide support for the speed reducer 2 and the electric cylinder 4, so that the speed reducer 2 can stably support the servo motor 1, the servo motor 1 can drive the first insulating shaft 3 through the speed reducer 2 and the shaft coupling, the first insulating shaft 3 can drive the electric cylinder 4 to stretch and retract, the electric cylinder 4 can support and drive the connecting shaft 5 to translate through the stretching and retracting end, the connecting shaft 5 can drive the adjusting rod 9 to translate through the positioning pin 23, the adjusting rod 9 can drive one end of the vacuum bellows 8 to translate, the adjusting rod 9 can drive the peek connector 10 to translate through the connecting shaft 5, the peek connector 10 can drive the second insulating shaft 13 to translate under the action of an external force, and the second insulating shaft 13 can provide rotary support for the position close to the two ends of the electrostatic deflection plate 14 through the rotating shaft and the rotary support seat 11 under the support of the peek connector 10.

[0043] The rotary support seat 11 is installed on the electrostatic deflection plate 14 through screws, and then fixed with the second insulating shaft 13 through a rotating shaft, and then the two ends of the peek connector 10 are fixed with the second insulating shaft 13 and the adjusting rod 9 through screws, one end of the vacuum bellows 8 is welded on the outer side of the adjusting rod 9 away from the peek connector 10, the vacuum flange 7 is welded on one end of the vacuum bellows 8 away from the peek connector 10, the support flange 6 is fixed on one end of the vacuum flange 7 away from the peek connector 10, and the adjusting rod 9 penetrates through the vacuum bellows 8, the support flange 6 and the vacuum flange 7 and enters the connecting shaft 5, and then the support flange 6 is fixed on the inner wall of the vacuum cavity, so that the vacuum environment in the vacuum cavity is guaranteed by the vacuum bellows 8, the adjusting rod 9, the vacuum flange 7 and the support flange 6 located in the vacuum cavity.

[0044] One end of the adjusting rod 9 is rotatably fixed with the rotary support seat 11 and the electrostatic deflection plate 14 through the second insulating shaft 13, the other end penetrates through the support flange 6 and is fixed on one end of the connecting shaft 5 through screws, the other end of the connecting shaft 5 is fixed with the stretching and retracting end of the electric cylinder 4 through screws, finally the servo motor 1 is connected with the electric cylinder 4 through the speed reducer 2 and the first insulating shaft 3, and the linear motion of the transmission shaft of the electric cylinder 4 drives the connecting shaft 5, the adjusting rod 9, the peek connector 10 and the second insulating shaft 13 to move forward and backward, and then the rotary support seat 11 realizes the rotary motion of the electrostatic deflection plate 14.

[0045] The electric cylinder 4 and the speed reducer 2 are fixed with the support device through the G10 plate 12, and the position of the electric cylinder 4 is adjusted by adjusting the four adjusting blocks of the support device.

[0046] In actual application, the worker can fix the high-pressure platform at a working position at a suitable height by using the fixed component according to the actual needs, so that the high-pressure platform supports the electric cylinder 4 and the speed reducer 2 to work at the corresponding height, and the installation height of the high-pressure platform can be adjusted according to the actual needs; the worker can control the two servo motors 1 to operate under the support of the high-pressure platform according to the actual needs, so that the two servo motors 1 can drive the first insulating shaft 3 to rotate through the speed reducer 2 and the shaft coupling, the first insulating shaft 3 can drive the electric cylinder 4 to extend and retract, and then the electric cylinder 4 can push the connecting shaft 5, the adjusting rod 9, the peek connecting head 10, the second insulating shaft 13, the rotating support seat 11 and the static deflection plate 14 together to translate away from the fixed plate 16, so that the static deflection plate 14 can be moved to a working position in the superconducting cyclotron; at this time, the two electric cylinders 4 are in a half-extended state, then the worker can control one of the servo motors 1 to rotate forward and control the other servo motor 1 to rotate reversely according to the actual needs, so that one of the servo motors 1 can drive the electric cylinder 4 to extend through the speed reducer 2 and the first insulating shaft 3, and the other servo motor 1 drives the electric cylinder 4 to retract, so that one of the electric cylinders 4 can push one end of the static deflection plate 14, while the other electric cylinder 4 pulls the other end of the static deflection plate 14, so that the static deflection plate 14 can rotate around the rotating support seat 11 under the support of the second insulating shaft 13, and then the static deflection plate 14 can adjust the working angle.

[0047] The G10 plate 12 cooperates with the high-pressure platform to realize the adjustability of the electric cylinder 4 assembly in the vertical direction. The electric cylinder 4 and the speed reducer 2 are connected through the first insulating shaft 3 to realize insulating installation, so as to ensure electrical safety in a high-voltage electric field environment.

[0048] As a preferred embodiment of the application, the partition includes:

[0049] The first insulating shaft 3 is connected to the driving end of the speed reducer 2 through the shaft coupling at one end, and is connected to the electric cylinder 4 at the other end.

[0050] The two second insulating shafts 13 are respectively connected to the two rotating support seats 11 through the rotating shafts at the ends away from the adjusting rod 9.

[0051] Specifically, the speed reducer 2 can provide support for the first insulating shaft 3 through the shaft coupling, and can drive the first insulating shaft 3 to rotate through the shaft coupling, so that the first insulating shaft 3 can drive the electric cylinder 4; the rotating connection of the second insulating shaft 13 with the rotating support seat 11 and the adjusting rod 9 can rotate when the static deflection plate 14 adjusts the angle, so as to avoid affecting the adjustment action of the static deflection plate 14.

[0052] The high-pressure platform comprises:

[0053] A fixed plate 16 is fixed below the speed reducer 2 and below the electric cylinder 4 and the servo motor 1;

[0054] A G10 plate 12 is fixed below the fixed plate 16;

[0055] A support column 17 is symmetrically fixed below the G10 plate 12;

[0056] The outer side of the fixed plate 16 is symmetrically connected with four adjusting blocks through bolt threads, and the adjusting blocks are fixedly connected with the G10 plate 12;

[0057] A supporting part is fixed at the lower end of the support column 17.

[0058] Specifically, the fixed plate 16 can provide stable support for the speed reducer 2 and the electric cylinder 4 through the fixing part, the support column 17 can provide stable support for the G10 plate 12 under the support of the support plate 18, the G10 plate 12 can provide support for the adjusting block, the fixed plate 16 is threadedly connected with the adjusting block through the bolt, and the staff can rotate the bolt under the support of the adjusting block according to the actual needs, so that the bolt pushes the fixed plate 16 to translate on the G10 plate 12 through the thread action, thereby adjusting the position of the fixed plate 16, so that the fixed plate 16 can drive the speed reducer 2 and the electric cylinder 4 arranged above the fixed plate 16 to translate and adjust the position, and the end of the second insulating shaft 13 rotates around the rotation shaft as the center under the support of the rotating support seat 11, thereby facilitating the adjustment of the position of the electric cylinder 4.

[0059] The supporting part comprises:

[0060] A support plate 18 is fixed at the lower end of the support column 17;

[0061] A fixed bolt 19 is symmetrically arranged and rotatably penetrates the support plate 18;

[0062] A tripod 20 is symmetrically arranged below the support plate 18, and the lower end of the fixed bolt 19 penetrates the tripod 20 and is threadedly connected.

[0063] Specifically, the tripod 20 can provide support for the fixed bolt 19 through the thread, and the fixed bolt 19 can provide support for the support plate 18, so that the support plate 18 can stably support the support column 17.

[0064] In actual application, the staff can fix the tripod 20 at the working position by penetrating one end of the tripod 20 with the fixing component according to the actual needs, and the staff can rotate the fixing bolt 19 at the position between the supporting plate 18 and the tripod 20 according to the actual needs, so that the fixing bolt 19 moves upward by the screw thread action with the tripod 20, and then the fixing bolt 19 can push the supporting plate 18 to move upward, so that the supporting plate 18 can push the G10 plate 12 upward through the support column 17 to adjust the height, and then the height of the speed reducer 2 and the electric cylinder 4 is conveniently adjusted, so that the electrostatic deflection plate 14 can be vertically adjusted upward, the electric cylinder 4, the speed reducer 2 and the servo motor 1 assembly are installed on the high-voltage platform, the G10 plate 12 has high-voltage electrical isolation performance and can cooperate with the adjusting block and the fixing component to conveniently adjust and independently disassemble, maintain, debug and replace the servo motor 1 and the speed reducer 2 without affecting the operation of other systems.

[0065] The first insulating shaft 3 and the second insulating shaft 13 are made of peek material, and the first insulating shaft 3, the second insulating shaft 13 and the G10 plate 12 cooperate to realize full-path high-voltage insulation from the servo motor 1 to the electrostatic deflection plate 14, effectively avoiding the risk of discharge and breakdown. At the same time, the vacuum bellows 8 realizes mechanical transmission isolation between the inside and outside of the vacuum cavity, so that the position adjustment of the electrostatic deflection plate 14 can be completed without stopping, breaking the vacuum, and opening the cavity, significantly improving the beam extraction debugging efficiency, reducing the maintenance intensity and radiation exposure, and being suitable for the precise control requirements of the beam trajectory in the high-voltage and high-vacuum environment of the superconducting cyclotron, effectively ensuring that the servo motor 1 and the speed reducer 2 have no electrical coupling or breakdown risk when the electrostatic deflection plate 14 is in high-voltage electric field operation, and fully meeting the stringent requirements of the superconducting accelerator on high-voltage insulation performance.

[0066] One end of the vacuum bellows 8 is welded to the adjusting rod 9, and the other end is welded to the vacuum flange 7, and the vacuum flange 7 is connected to the supporting flange 6 through screws. This structure ensures the vacuum sealing performance of the system while retaining the mechanical freedom of the vacuum bellows 8 between the transmission mechanism and the electrostatic deflection plate 14, thereby realizing continuous adjustment of the position of the deflection plate in the vacuum environment.

[0067] As a preferred embodiment of the present application, the continuous cooling member comprises:

[0068] The through hole 21 is symmetrically arranged through the connecting shaft 5;

[0069] The copper pipe 22 is arranged at one end of the connecting shaft 5 away from the electric cylinder 4, and is fixedly connected with the connecting shaft 5, one end of the copper pipe 22 is located in the through hole 21, and the other end is fixedly connected with the adjusting rod 9;

[0070] The joint 24 is fixed at one end of the copper pipe 22.

[0071] Specifically, the connecting shaft 5 can provide a space for the through hole 21, the through hole 21 can provide a space for the copper pipe 22 to install and connect the joint 24 and the pipeline, the copper pipe 22 can provide support for the joint 24, the joint 24 can provide a connection position with the pipeline conveying the cooling liquid, and the joint 24 can provide a passage for the cooling liquid to enter the copper pipe 22, and the copper pipe 22 can provide a passage for the cooling liquid to enter the adjusting rod 9.

[0072] The cold insulation piece comprises:

[0073] The copper water pipe 25 is symmetrically connected to the outside of the adjusting rod 9.

[0074] The adjusting rod 9 is hollow inside and communicates with the copper pipe 22 and the copper water pipe 25.

[0075] The peek spiral pipe 26 is fixed to one end of the copper water pipe 25.

[0076] The heat conduction pipe 27 is fixed to the outside of the electrostatic deflection plate 14 by the fixing member, is attached to the working surface of the electrostatic deflection plate 14, and is fixed to the other end of the peek spiral pipe 26.

[0077] Specifically, the adjusting rod 9 is provided with the positioning pin 23 inside, and the positioning pin 23 is arranged through the connecting shaft 5 to fix the adjusting rod 9 and the connecting shaft 5. The adjusting rod 9 can provide support for the copper water pipe 25 and can provide a passage for the cooling liquid to enter the water pipe, the copper water pipe 25 can provide support for the spiral pipe, the copper water pipe 25 can provide a passage for the cooling liquid to enter the spiral pipe, the spiral pipe can provide a passage for the cooling liquid to enter the heat conduction pipe 27, and the spiral pipe can be bent and deformed under the action of an external force to avoid affecting the movement of the electrostatic deflection plate 14. The electrostatic deflection plate 14 moves while adjusting the angle, so that the heat conduction pipe 27 can push the spiral pipe to bend and deform. The heat conduction pipe 27 is made of copper and can absorb the heat on the electrostatic deflection plate 14 and transfer it to the cooling liquid flowing inside.

[0078] In the actual application process of the embodiment, the staff needs to connect the pipeline for conveying the cooling liquid with the joint 24 from the through port 21 after the adjusting device is installed, and convey the cooling liquid to the copper pipe 22 connected with one of the adjusting rods 9, so that the cooling liquid can enter one of the adjusting rods 9 through the joint 24 and the copper pipe 22, flow along the inside of the adjusting rod 9 into the copper water pipe 25, then pass through the copper water pipe 25 into the inside of the peek spiral pipe 26, and flow into the heat conduction pipe 27 through the peek spiral pipe 26, and then pass through the heat conduction pipe 27 in turn from the peek spiral pipe 26 connected with the other adjusting rod 9, the copper water pipe 25, the other adjusting rod 9, the copper pipe 22 and the joint 24 to the outside, and the heat conduction pipe 27 will absorb the heat on the electrostatic deflection plate 14 and conduct it to the cooling liquid flowing in the inside, so that the cooling liquid takes away the heat to achieve water cooling of the electrostatic deflection plate 14, and the peek material and the spiral structure of the peek spiral pipe 26 can meet the requirements of providing sufficient creepage distance and electrical insulation under the conditions of high vacuum and strong electric field, and realize water cooling of the deflection plate.

[0079] As a preferred embodiment of the present application, the outer side of the connecting shaft 5 is provided with a lubricating part connected with the creepage part, the lubricating part comprises a storage part fixed on the outer side of the connecting shaft 5, and the storage part can be inserted with a lubricating part, and further comprises a guide part arranged on the rotating support base 11, and the guide part is connected with the storage part to drive the lubricating rotating support base 11 by the lubricating part as needed.

[0080] The storage part comprises:

[0081] The hollow cylinder 29 is fixedly connected with one end of the end part of the fixed plate 16 and located on the outer side of the connecting shaft 5;

[0082] The corrugated cylinder 30 is arranged in the inside of the hollow cylinder 29 and fixedly connected with the inner wall of the hollow cylinder 29 at one end close to the electrostatic deflection plate 14;

[0083] The one-way valve 31 is fixedly arranged through the lower part of the corrugated cylinder 30 and the hollow cylinder 29;

[0084] The pushing part is arranged through the hollow cylinder 29 and connected with the joint 24.

[0085] Specifically, the fixed plate 16 can stably support the hollow cylinder 29 through the fixing part, the hollow cylinder 29 can provide a through channel for the connecting shaft 5, the hollow cylinder 29 can provide support and movement guide for the corrugated cylinder 30, the corrugated cylinder 30 can provide storage space for the lubricant and stably support the one-way valve 31, the one-way valve 31 is a valve type and can only provide a channel for the cooling liquid to enter the corrugated cylinder 30, and can be connected with the pipeline for conveying the lubricant.

[0086] The pushing part comprises:

[0087] The shift track 41 is arranged through the inner bottom wall of the hollow cylinder 29;

[0088] The push ring 36 is fixed at the other end of the corrugated cylinder 30;

[0089] The electric rod 37 is fixed at the side of the push ring 36 away from the electrostatic deflection plate 14 through a connecting part, and the telescopic end is arranged through the shift track 41;

[0090] The connecting ring 40 is fixed on the outer side of the joint 24 through a connecting part, and is arranged above the telescopic end of the electric rod 37.

[0091] Specifically, the hollow cylinder 29 can provide a space for the shift track 41, the shift track 41 can provide a moving and through channel for the electric rod 37, the corrugated cylinder 30 can provide support for the push ring 36, so that the push ring 36 can support the electric rod 37 in cooperation with the hollow cylinder 29, and the hollow cylinder 29 can provide a moving channel and guide for the push ring 36, the outer side of the joint 24 is fixed with the support ring 38, the lower side of the support ring 38 is welded with the connecting plate 39, and the lower end of the connecting plate 39 is welded with the connecting ring 40, the connecting ring 40 can provide a through channel for the telescopic end of the electric rod 37, so that the telescopic end of the electric rod 37 can be inserted with the connecting ring 40.

[0092] The lubrication guide includes:

[0093] The discharge cylinder 33 is rotationally connected above the rotary support seat 11, the inner bottom wall center of which is upwardly raised to form a conical structure;

[0094] The discharge hole 34 is arranged through the lower end of the discharge cylinder 33 to discharge lubricant into the rotary support seat 11 in cooperation with the discharge cylinder 33.

[0095] The rubber tube 32 is arranged through the upper end of the discharge cylinder 33 at one end and through the upper end of the hollow cylinder 29 and the corrugated cylinder 30 at the other end, and the two ends are made of hard plastic material, and the middle part is made of rubber.

[0096] Specifically, the outer side of the discharge cylinder 33 is fixed with the fixed rod 35, and the lower end of the fixed rod 35 is fixedly connected with the rotary support seat 11, so that the rotary support seat 11 can provide support for the fixed rod 35, and the fixed rod 35 can provide support for the discharge cylinder 33, the discharge cylinder 33 can provide a space for the discharge hole 34, and the discharge hole 34 can provide a channel for the lubricant to be discharged to the outside of the rotating shaft, the rubber tube 32 has an inclination angle, which can provide a flow channel for the lubricant to enter the discharge cylinder 33, the conical structure of the inner bottom wall of the discharge cylinder 33 can prevent the lubricant from remaining in the discharge cylinder 33, so that the lubricant can fully enter the discharge hole 34, and the rubber tube 32 has elasticity and can be stretched or twisted and deformed under the action of external force, and will rebound to the original position when the external force disappears.

[0097] In practical application, the operator can connect the lubricant delivery pipeline to the one-way valve 31, allowing the lubricant to pass through the one-way valve 31 under external pressure and be injected into the bellows 30 for storage. When the superconducting cyclotron accelerator stops, the operator can control the two servo motors 1 to drive the electric cylinder 4 to retract, adjusting the electrostatic deflection plate 14 to reset as needed. Figure 1 In the state shown, the electric rod 37 is then extended, causing its telescopic end to pass through the sliding channel 41, extend upwards, and insert into the inner side of the connecting ring 40, thus connecting the electric rod 37 with the connecting ring 40. Then, the servo motor 1 is simultaneously controlled to extend the electric cylinder 4, which in turn pushes the connecting shaft 5 to move away from the servo motor 1 along the inner side of the hollow cylinder 29. Simultaneously, the connecting shaft 5 drives the copper tube 22 and the connector 24 to move together, allowing the connector 24 to move the connecting ring 40 away from the servo motor 1 via the support ring 38 and the connecting plate 39. This allows the connecting ring 40 to move with the inserted... The electric rod 37 moves together with the electric rod 37, so that the electric rod 37 can push the push ring 36 along the sliding track 41 towards the support flange 6, so that the push ring 36 can move along the inside of the hollow cylinder 29 and squeeze the bellows 30. Under the action of external force, the bellows 30 can be squeezed, folded and contracted along the inside of the hollow cylinder 29. During the process of the bellows 30 being squeezed, folded and contracted, the pressure is used to squeeze the lubricant stored inside into the rubber band tube 32 (the rubber band tube 32 will be stretched and deformed when the electric cylinder 4 extends). The lubricant can flow out along the rubber band tube 32 into the discharge cylinder 33, and under the action of gravity, it passes through the discharge hole 34 and is discharged from the lubrication shaft.

[0098] The amount of lubricant discharged depends on the extension of the electric cylinder 4, and the operator needs to control the extension of the electric cylinder 4 by observing the lubricant discharged between the discharge cylinder 33 and the bearing.

[0099] Working Principle: During use, the insulation and vacuum integrity of the entire adjustment device are first checked. Upon startup, the servo motor 1 provides power, which is reduced in speed by the reducer 2 to drive the electric cylinder 4 to produce a linear extension / retraction motion, forming a high-precision position adjustment input source. The extension / retraction end of the electric cylinder 4 transmits power to the adjusting rod 9 via the connecting shaft 5, achieving stable mechanical transmission.

[0100] The front end of the adjusting rod 9 is connected to the second insulating shaft 13 via the PEek connector 10, forming a primary electrical isolation node.

[0101] The second insulating shaft 13 is then fixedly connected to the electrostatic deflection plate 14 via the rotating support 11, thereby enabling precise control of the angle and position of the deflection plate.

[0102] To ensure the compatibility of the transmission chain and the vacuum system, the rear end of the adjusting rod 9 is connected with the vacuum bellows 8 by welding, the other end of the vacuum bellows 8 is welded with the vacuum flange 7, and the vacuum flange 7 is installed on the support flange 6 through screws, and the whole is fixed on the vacuum cavity interface of the superconducting cyclotron, so as to realize the high-reliability vacuum sealing and mechanical transmission coupling.

[0103] The electric cylinder 4 is also connected with the output end of the speed reducer 2 through the first insulation shaft 3 and the shaft coupling, and a two-stage electrical isolation path is constructed, so that the safety in the high-voltage environment is significantly enhanced.

[0104] The electric cylinder 4, the speed reducer 2 and the servo motor 1 are modularly installed on the high-voltage platform, so that the G10 plate 12 is isolated and supported from the ground, not only realizing the electrical isolation of the high-voltage vacuum cavity, but also facilitating the system maintenance and quick disassembly.

[0105] The components are cooperatively operated, and a position fine adjustment system for the high-voltage electrostatic deflection plate 14 is constructed, which can be safely, continuously and controllably adjusted under the conditions of no shutdown and no vacuum interruption through the external driving system with complete electrical isolation, and has the vacuum sealing, insulation integrity and adjustment precision, and meets the harsh operation requirements of the high-voltage beam extraction system of the superconducting cyclotron.

[0106] The above is the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. An adjustment device for the electrostatic deflection plate of a superconducting cyclotron accelerator, characterized in that, The system includes an electrostatic deflection plate, a servo motor, an adjusting rod, and a reducer. There are two servo motors and adjusting rods. The drive end of the servo motor is connected to the reducer, and the drive end of the reducer is connected to an electric cylinder. The adjusting rods are symmetrically arranged between the electrostatic deflection plate and the electric cylinder. A vacuum bellows is fitted around the outer side of the adjusting rod near the electric cylinder. A vacuum flange is connected to the end of the vacuum bellows, and a support flange is connected to one end of the vacuum flange. The support flange and the vacuum flange are located outside the adjusting rod, and the adjusting rod is fixedly connected to the telescopic end of the electric cylinder via a connecting shaft. A rotating support seat is symmetrically fixed on the side of the electrostatic deflection plate near the adjusting rod. The system also includes: An electrical isolation section is disposed between the servo motor and the electrostatic deflection plate, and located below the servo motor. The electrical isolation section includes a connecting member disposed between the servo motor and the electrostatic deflection plate, and connected to the electric cylinder and the adjusting rod, as well as a high-voltage platform fixed below the servo motor. The connecting member includes: a PEek connector, having one, connected to one end of the adjusting rod near the electrostatic deflection plate; and two second insulating shafts, one end of which is rotatably connected to the end of the other adjusting rod, and the other end of which is connected to the PEek connector, so as to cooperate with the high-voltage platform to form a complete electrical isolation path. A creepage cooling section is located on the outside of the electrostatic deflection plate and is connected to the adjusting rod and the connecting shaft. The creepage cooling section includes a cooling connecting member that runs through the connecting shaft and is connected to the adjusting rod, and cooling insulation members that are symmetrically fixed on the outside of the electrostatic deflection plate and connected to the cooling connecting member, so as to provide creepage distance and electrical insulation, while cooling the electrostatic deflection plate.

2. The adjustment device for the electrostatic deflection plate of a superconducting cyclotron accelerator according to claim 1, characterized in that, The connecting member includes: The first insulating shaft has one end connected to the drive end of the reducer via a coupling, and the other end connected to the electric cylinder. The ends of the two second insulating shafts away from the adjusting rod are respectively rotatably connected to the two rotating support seats via rotating shafts.

3. The adjustment device for the electrostatic deflection plate of a superconducting cyclotron accelerator according to claim 2, characterized in that, The high-voltage platform includes: The mounting plate is fixed below the reducer and located below the electric cylinder and servo motor; G10 plate, fixed below the fixed plate; Four adjusting blocks are symmetrically connected to the outer side of the fixed plate by bolt threads, and the adjusting blocks are fixedly connected to the G10 plate. The support pillars are symmetrically fixed below the G10 plate; The supporting parts are fixed to the lower end of the support column.

4. The adjustment device for the electrostatic deflection plate of a superconducting cyclotron accelerator according to claim 3, characterized in that, The supporting components include: Support plate, fixed to the lower end of the support column; The bolts and rotating through-plates are symmetrically arranged. The tripod is symmetrically arranged below the support plate; the lower end of the fixing bolt passes through the tripod and is threaded.

5. The adjustment device for the electrostatic deflection plate of a superconducting cyclotron accelerator according to claim 4, characterized in that, The cooling link includes: The opening is symmetrically positioned along the connecting axis. A copper tube is installed through the end of the connecting shaft away from the electric cylinder and is fixedly connected to the connecting shaft. One end is located inside the port, and the other end is fixedly connected to the adjusting rod. The connector is fixed to one end of the copper pipe.

6. The adjustment device for the electrostatic deflection plate of a superconducting cyclotron accelerator according to claim 5, characterized in that, The cooling insulation component includes: Copper water pipes are symmetrically connected to the outside of the adjusting rod; The adjusting rod is hollow inside and is connected to the copper pipe and the copper water pipe; Peek spiral pipe, one end of which is fixedly connected to a copper water pipe; The heat pipe is fixed to the outside of the electrostatic deflection plate by a fixing component and is in contact with the working surface of the electrostatic deflection plate. Both ends are fixed to the other end of the PEek spiral tube.

7. The adjustment device for the electrostatic deflection plate of a superconducting cyclotron accelerator according to claim 6, characterized in that, The outer side of the connecting shaft is provided with a lubrication part and is connected to the cooling part. The lubrication part includes a storage member fixed on the outer side of the connecting shaft, and the storage member can be inserted into the cooling member. It also includes a lubricating guide member provided on the rotating support seat, and the lubricating guide member is connected to the storage member so that the rotating support seat can be driven by the cooling member to lubricate it as needed.

8. The adjustment device for the electrostatic deflection plate of a superconducting cyclotron accelerator according to claim 7, characterized in that, The storage and extrusion component includes: A hollow cylinder, one end of which is fixedly connected to the end of a fixed plate via a fixing component, and located outside the connecting shaft; A corrugated cylinder is installed inside a hollow cylinder, with one end near the electrostatic deflection plate fixed to the inner wall of the hollow cylinder. A one-way valve is fixedly installed at the bottom of both the bellows and the hollow cylinder; The extrusion part is installed through the hollow cylinder and connected to the connector.

9. The adjustment device for the electrostatic deflection plate of a superconducting cyclotron accelerator according to claim 8, characterized in that, The extrusion component includes: The channel is opened through the inner bottom wall of the hollow cylinder; The push ring is fixed at the other end of the corrugated cylinder; The electric pole is fixed to the side of the push ring away from the electrostatic deflection plate by a connecting component, and the telescopic end passes through the sliding track; The connecting ring is fixed to the outside of the connector via a connecting component and is located above the telescopic end of the electric pole.

10. The adjustment device for the electrostatic deflection plate of a superconducting cyclotron accelerator according to claim 9, characterized in that, The lubricating element includes: The cylinder is rotatably connected to the top of the rotating support base, and its inner bottom wall bulges upward at the center to form a conical structure. Multiple perforations are evenly distributed throughout the lower end of the drain cylinder to discharge lubricating oil into the inner side of the rotating support. The rubber band tube is installed with one end penetrating the upper end of the drain pipe and the other end penetrating the upper end of the hollow cylinder and the corrugated cylinder. Both ends are made of hard plastic, and the space between the two ends is made of latex.

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