Adjusting device for electrostatic deflection plate of superconducting cyclotron

Abstract

The invention relates to the technical field of electrostatic deflection plate adjustment, and discloses an adjusting device for an electrostatic deflection plate of a superconducting cyclotron, the electrostatic deflection plate, two servo motors, two adjusting rods and a speed reducer, the number of the servo motors and the number of the adjusting rods are two, and rotary supporting seats are symmetrically fixed to the side, close to the adjusting rods, of the electrostatic deflection plate. A cold climbing part; the double-section peek insulation shaft and the G10 insulation supporting plate are innovatively adopted in structure, a whole-course high-voltage insulation link from a servo motor driving system to the high-voltage deflection plate is formed, and the breakdown and electric leakage risks under high voltage are effectively avoided; according to the mechanical structure, the electric cylinder and the rotary supporting structure are arranged to be matched with the welding type vacuum corrugated pipe, two-dimensional decoupling adjustment of the deflection plate under the vacuum sealing and electrical isolation conditions is achieved, cavity opening and vacuum breaking are not needed, the beam debugging efficiency and the equipment operation stability are improved, and the working efficiency is improved. According to the scheme, the defect of the high-voltage insulation adjusting capability in the prior art is overcome.

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 adopts 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 accurately transmits power through an external adjusting rod and sets high-insulation-performance materials in the driving 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: 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.

[0006] 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.

[0007] 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.

[0008] 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.

[0009] 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.

[0010] Further, the electric cylinder is adjusted up and down through the high-voltage platform.

[0011] Further, the first insulating shaft, the second insulating shaft, and the G10 plate are used to realize high-voltage insulation of the entire adjusting device.

[0012] 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 seal while retaining the mechanical freedom between the transmission mechanism and the deflection plate, and to realize continuous position adjustment under the vacuum environment.

[0013] Further, the electric cylinder is connected with the speed reducer through the first insulating shaft and the shaft coupling, and the speed reducer is driven by the servo motor, and high-insulation-strength materials (such as peek and G10) are used in the power transmission path to electrically isolate the servo motor and the speed reducer, so that there is no risk of electrical coupling or breakdown when the electrostatic deflection plate is in a high-voltage electric field, and the strict requirements of the superconducting accelerator on high-voltage insulation performance are met.

[0014] Further, the electrostatic deflection plate and the adjusting rod, the electric cylinder and the servo motor, the G10 plate in the high-voltage platform and the supporting device, and the three groups of connections all use peek insulating materials to realize high-voltage insulation between the overall device and the vacuum cavity and between the supporting device and the outside.

[0015] Further, the telescopic end of the electric cylinder is connected with the adjusting rod through detachable screws, and cooperates 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.

[0016] In the second aspect, the installation method of the device specifically includes the following steps: Step one: the rotating support seat is installed on the electrostatic deflection plate by screws, and then connected with the second insulating shaft through the rotating shaft, and then the two ends of the peek connector are fixed with the second insulating shaft and the adjusting rod through screws, the adjusting rod is inserted into the connecting shaft through the supporting flange, and then the supporting flange is fixedly connected with the vacuum flange, so that the vacuum environment in the cavity is ensured.

[0017] Step two: the servo motor is connected with the electric cylinder through the first insulating shaft and the speed reducer, and the linear motion of the electric cylinder transmission shaft drives the connecting shaft, the adjusting rod, the peek connector and the second insulating shaft to move forward and backward, and then the rotating support seat is used to realize the rotating motion of the electrostatic deflection plate.

[0018] Step three: the electric cylinder and the speed reducer are connected with the high-voltage platform through the adjusting block and the bolt, and the position of the electric cylinder is adjusted under the support of the adjusting block by adjusting the bolt.

[0019] The above scheme of the present application at least has the following beneficial effects: The servo motor drives 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 the machine, thereby improving the flexibility and efficiency of the beam debugging, 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 to realize effective electrical isolation with the high-voltage electric field, prevent discharge breakdown, and ensure the electrical safety and long-term stable operation of the adjusting device under the high-voltage working condition of the electrostatic deflection plate. DETAILED DESCRIPTION

[0020] Figure 1 A kind of adjusting device of the electrostatic deflection plate of superconducting cyclotron provided for the embodiment of the present application overall perspective view; Figure 2 The plan view of the combination of servo motor, G10 plate, connecting shaft, adjusting rod and electrostatic deflection plate provided for the embodiment of the present application; Figure 3 The perspective view of the combination of servo motor, connecting shaft, adjusting rod and electrostatic deflection plate provided for the embodiment of the present application; Figure 4 The perspective view of the electric cylinder provided for the embodiment of the present application; Figure 5 The perspective view of the combination of adjusting rod, copper pipe and peek spiral pipe provided for the embodiment of the present application; Figure 6 The perspective view of the combination of peek spiral pipe and heat pipe provided for the embodiment of the present application; Figure 7 The hollow cylinder perspective structure schematic view provided for the embodiment of the present application; Figure 8 A structure schematic diagram in the A of Figure 2 Figure 9 A perspective view of a corrugated cylinder, an electric rod and a support ring combination provided for an embodiment of the present application; Figure 10 A structure schematic diagram in the B of Figure 1 Figure 11 A structure schematic diagram in the C of Figure 2 Figure 12 A sectional plane view of a discharge cylinder provided for an embodiment of the present application.

[0021] Explanation of reference signs: 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 pipe; 27, heat conducting pipe; 28, rotating ear; 29, hollow cylinder; 30, corrugated cylinder; 31, one-way valve; 32, rubber tube; 33, discharge cylinder; 34, discharge hole; 35, fixed rod; 36, push ring; 37, electric rod; 38, support ring; 39, connecting plate; 40, connecting ring; 41, track moving. DETAILED DESCRIPTION

[0022] Exemplary embodiments of the present application will be described hereinafter in detail with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0023] 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, the outer side of one end of adjusting rod 9 close to electric cylinder 4 is equipped with vacuum bellows 8, 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 at 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: 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, with one, is connected in one of the end of adjusting rod 9 close to electrostatic deflection plate 14;Second insulation shaft 13, with two, one end of one is rotatably connected with the end of another adjusting rod 9, and the other end is connected with peek connector 10, to build complete electrical isolation path with the high voltage platform; Climbing cold part, be arranged at 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 through connecting shaft 5, and be connected with adjusting rod 9, and the cold insulating piece is symmetrically fixed at 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.

[0024] Specifically, the one end of speed reducer 2 is fixed with shaft sleeve 15, and shaft sleeve 15 is located at the outer side of first insulation shaft 3, to protect first insulation shaft 3, the one end of second insulation shaft 13 away from adjusting rod 9 is fixed with swivel ear 28, the swivel ear 28 is rotatably connected with rotary support seat 11 by pivot, one of the end of adjusting rod 9 away from connecting shaft 5 is rotatably connected with one of the end of second insulation shaft 13 away from electrostatic deflection plate 14 by rotary support seat 11 and pivot.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] In actual application, the worker can fix the high-voltage platform at a working position at a suitable height by using the fixed component according to the actual situation, so that the high-voltage platform supports the electric cylinder 4 and the speed reducer 2 to work at the corresponding height, and the installation height of the high-voltage platform can be adjusted according to the actual situation. The worker can control the two servo motors 1 to operate under the support of the high-voltage platform according to the actual situation, 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 electrostatic deflector plate 14 together to translate away from the fixed plate 16, so that the electrostatic deflector 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 situation, 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 electrostatic deflector plate 14, and the other electric cylinder 4 pulls the other end of the electrostatic deflector plate 14, so that the electrostatic deflector plate 14 can rotate around the rotating support seat 11 under the support of the second insulating shaft 13, and then the electrostatic deflector plate 14 can adjust the working angle.

[0030] The G10 plate 12 cooperates with the high-voltage 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, which ensures electrical safety in a high-voltage electric field environment.

[0031] As a preferred embodiment of the present application, the partition includes: The first insulating shaft 3 is connected with the driving end of the speed reducer 2 through the shaft coupling at one end, and is connected with the electric cylinder 4 at the other end; The two second insulating shafts 13 are respectively connected with the two rotating support seats 11 through the rotating shafts at the ends away from the adjusting rod 9.

[0032] 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 electrostatic deflector plate 14 adjusts the angle, so as to avoid affecting the adjustment action of the electrostatic deflector plate 14.

[0033] The high-voltage platform includes: The solid plate 16 is fixed below the speed reducer 2 and below the electric cylinder 4 and the servo motor 1. The G10 plate 12 is fixed below the solid plate 16. The support column 17 is symmetrically fixed below the G10 plate 12. The outer side of the solid plate 16 is symmetrically connected with four adjusting blocks through bolt threads, and the adjusting blocks are fixedly connected with the G10 plate 12. The supporting part is fixed at the lower end of the support column 17.

[0034] Specifically, the solid 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, and the G10 plate 12 can provide support for the adjusting block. The solid plate 16 is connected through the adjusting block by bolt threading, 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 solid plate 16 to translate on the G10 plate 12 through the thread action, thereby adjusting the position of the solid plate 16. The solid plate 16 can drive the speed reducer 2 and the electric cylinder 4 arranged above it to translate and adjust the position together, and the end of the second insulating shaft 13 will rotate around the center of the rotating support seat 11 under the support of the rotating support seat 11, thereby facilitating the adjustment of the position of the electric cylinder 4.

[0035] The supporting part includes: The support plate 18 is fixed at the lower end of the support column 17. The solid bolt 19 is symmetrically arranged and rotates through the support plate 18. The tripod 20 is symmetrically arranged below the support plate 18, and the lower end of the solid bolt 19 penetrates the tripod 20 and is threadedly connected.

[0036] Specifically, the tripod 20 can provide support for the solid bolt 19 through the thread, and the solid bolt 19 can provide support for the support plate 18, so that the support plate 18 can stably support the support column 17.

[0037] 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 thread action with the tripod 20, and the fixing bolt 19 can push the supporting plate 18 to move upward, the supporting plate 18 can push the G10 plate 12 to adjust the height through the support column 17, and the height of the speed reducer 2 and the electric cylinder 4 can be conveniently adjusted, so that the electrostatic deflection plate 14 can be vertically adjusted in height, 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.

[0038] The first insulation shaft 3 and the second insulation shaft 13 are made of peek material, and the first insulation shaft 3, the second insulation 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 precise control requirements of beam trajectory in high-voltage and high-vacuum environments such as superconducting cyclotrons. The servo motor 1 and the speed reducer 2 have no electrical coupling or breakdown risk when the electrostatic deflection plate 14 operates in a high-voltage electric field, fully meeting the stringent requirements of superconducting accelerators for high-voltage insulation performance.

[0039] 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. The vacuum flange 7 is connected to the support flange 6 by screws. This structure ensures the vacuum sealing 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 deflection plate position in a vacuum environment.

[0040] As a preferred embodiment of the present application, the continuous cooling member comprises: The through hole 21 is symmetrically arranged through the connecting shaft 5; 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 of the copper pipe 22 is fixedly connected with the adjusting rod 9; The joint 24 is fixed at one end of the copper pipe 22.

[0041] Specifically, the connecting shaft 5 can provide space for the through hole 21, the through hole 21 can provide 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.

[0042] The cold insulation piece comprises: The copper water pipe 25 is symmetrically connected to the outside of the adjusting rod 9. The inside of the adjusting rod 9 is hollow and communicates with the copper pipe 22 and the copper water pipe 25. The peek spiral pipe 26 is fixedly connected to one end of the copper water pipe 25. The heat conduction pipe 27 is fixed to the outside of the electrostatic deflection plate 14 by the fixing member, and is attached to the working surface of the electrostatic deflection plate 14, and the two ends are respectively fixedly connected to the other end of the peek spiral pipe 26.

[0043] Specifically, the inside of the adjusting rod 9 is provided with the positioning pin 23, and the positioning pin 23 is provided 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 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 material, and can absorb the heat on the electrostatic deflection plate 14 and transfer it to the cooling liquid flowing inside.

[0044] 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 at the same time realize water cooling of the deflection plate.

[0045] 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 is inserted with a lubricating part, and the lubricating part is provided on the rotating support seat 11 and connected with the storage part to drive the lubricating rotating support seat 11 by the lubricating part as needed.

[0046] The storage part comprises: The hollow cylinder 29 is fixedly connected with one end of the end plate 16 through a fixed part and located on the outer side of the connecting shaft 5; 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; The one-way valve 31 is fixedly arranged through the lower part of the corrugated cylinder 30 and the hollow cylinder 29; The pushing part is arranged through the hollow cylinder 29 and connected with the joint 24.

[0047] Specifically, the end plate 16 can stably support the hollow cylinder 29 through the fixed 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, and 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.

[0048] The pushing part comprises: The moving channel 41 is opened through the inner bottom wall of the hollow cylinder 29; The pushing ring 36 is fixed on the other end of the corrugated cylinder 30. Electric rod 37 is fixed on the side of push ring 36 away from electrostatic deflection plate 14 through connecting part, and the telescopic end penetrates through shift track 41; Connecting ring 40 is fixed on the outside of joint 24 through connecting part, and is located above the telescopic end of electric rod 37.

[0049] Specifically, hollow cylinder 29 can provide shift track 41 with opening space, shift track 41 can provide electric rod 37 with moving and penetrating channel, corrugated cylinder 30 can provide push ring 36 with support, so that push ring 36 can support electric rod 37 in cooperation with hollow cylinder 29, and hollow cylinder 29 can provide push ring 36 with moving channel and guide, the outside of joint 24 is fixed with support ring 38, support ring 38 is welded with connecting plate 39 below, and the lower end of connecting plate 39 is welded with connecting ring 40, connecting ring 40 can provide the telescopic end of electric rod 37 with penetrating channel, so that the telescopic end of electric rod 37 can be inserted with connecting ring 40.

[0050] The guide and lubrication member comprises: Discharge cylinder 33 is rotationally connected above rotary support seat 11, the inner bottom wall center of which is raised upward to form a conical structure; Discharge hole 34 is provided with a plurality of holes, which are evenly arranged through the lower end of discharge cylinder 33 to discharge lubricating oil to the inside of rotary support seat 11 in cooperation with discharge cylinder 33; Rubber tube 32 is provided with one end penetrating through the upper end of discharge cylinder 33 and the other end penetrating through the upper end of hollow cylinder 29 and corrugated cylinder 30, and the two ends are made of hard plastic material, and the middle part is made of rubber material.

[0051] Specifically, the outside of discharge cylinder 33 is fixed with fixed rod 35 symmetrically, and the lower end of fixed rod 35 is fixedly connected with rotary support seat 11, so that rotary support seat 11 can provide support for fixed rod 35, and fixed rod 35 can provide support for discharge cylinder 33, discharge cylinder 33 can provide discharge hole 34 with opening space, and discharge hole 34 can provide lubricant with a channel for discharging to the outside of the rotating shaft, rubber tube 32 has an inclination angle, which can provide lubricant with a flow channel, so that lubricant can enter discharge cylinder 33, and the conical structure of the inner bottom wall of discharge cylinder 33 can prevent lubricant from remaining in discharge cylinder 33, so that lubricant can fully enter discharge hole 34, and rubber tube 32 has elasticity, which can be stretched or twisted and deformed under external force, and will rebound to the original position when the external force disappears.

[0052] In the actual application process of the embodiment, the staff can connect the pipeline for conveying lubricant with one-way valve 31, so that the lubricant can be injected into corrugated cylinder 30 for storage under the action of external pressure, and the staff can control the operation of the two servo motors 1 to drive electric cylinder 4 to retract when the superconducting cyclotron is shut down according to the actual situation, so as to adjust electrostatic deflection plate 14 to reset to the position as shown in Figure 1In the shown state, the electric rod 37 is then controlled to extend, so that the telescopic end of the electric rod 37 extends upward through the moving channel 41 and is inserted into the inner side of the connecting ring 40, so that the electric rod 37 is inserted with the connecting ring 40, and then the synchronous control of the servo motor 1 is performed to operate, so that the electric cylinder 4 is simultaneously extended, and then the electric cylinder 4 pushes the connecting shaft 5 to translate along the inner side of the hollow cylinder 29 in a direction away from the servo motor 1, and the connecting shaft 5 drives the copper pipe 22 and the connector 24 to move together, so that the connector 24 drives the connecting ring 40 to move together in a direction away from the servo motor 1 through the supporting ring 38 and the connecting plate 39, so that the connecting ring 40 drives the electric rod 37 inserted therewith to move, so that the electric rod 37 pushes the pushing ring 36 in a direction close to the supporting flange 6 along the moving channel 41, so that the pushing ring 36 moves along the inside of the hollow cylinder 29 and squeezes the corrugated cylinder 30, so that the corrugated cylinder 30 is squeezed and folded and shrunk along the inside of the hollow cylinder 29 under the action of the external force, and the lubricant stored in the corrugated cylinder 30 is squeezed out into the rubber tube 32 in the process of the squeezing and folding and shrinking of the corrugated cylinder 30 (the rubber tube 32 is stretched and deformed at the same time when the electric cylinder 4 is extended), so that the lubricant flows out into the discharge cylinder 33 along the rubber tube 32, and is discharged to the lubricating rotating shaft through the discharge hole 34 under the action of gravity.

[0053] The amount of the discharged lubricant depends on the extension amount of the electric cylinder 4, and the operator needs to control the extension amount of the electric cylinder 4 by observing the discharged lubricant between the discharge cylinder 33 and the bearing.

[0054] Working principle: In the use process of the present application, the insulation state and vacuum integrity of the whole adjusting device are first checked. After starting, the servo motor 1 provides power, and after speed reduction through the speed reducer 2, drives the electric cylinder 4 to generate linear telescopic action, and constitutes a high-precision position adjustment input source. The telescopic end of the electric cylinder 4 is transmitted to the adjusting rod 9 through the connecting shaft 5, and stable mechanical transmission is realized.

[0055] The front end of the adjusting rod 9 is connected with the second insulation shaft 13 through the peek connector 10, and forms a first-stage electrical isolation node.

[0056] The second insulation shaft 13 is fixedly connected to the electrostatic deflection plate 14 through the rotating support seat 11, so that the angle and position of the deflection plate are accurately controlled.

[0057] In order to ensure that the transmission chain is compatible with the vacuum system, the rear end of the adjusting rod 9 is connected with the vacuum bellows 8 through welding, the other end of the vacuum bellows 8 is welded to the vacuum flange 7, and the vacuum flange 7 is installed on the supporting flange 6 through screws, and the whole is fixed to the vacuum cavity interface of the superconducting cyclotron, so that high-reliability vacuum sealing and mechanical transmission coupling are realized.

[0058] 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, a two-stage electrical isolation path is constructed, and the safety under the high-voltage environment is significantly enhanced.

[0059] The electric cylinder 4, the speed reducer 2 and the servo motor 1 are modularly installed on the high-voltage platform, the G10 plate 12 is supported in isolation from the ground, the electrical isolation of the high-voltage vacuum cavity is realized, and the system maintenance and quick disassembly are facilitated.

[0060] The components are cooperatively operated, a set of position fine adjustment system for the high-voltage electrostatic deflection plate 14 is constructed, the system is safe, continuous and controllable under the conditions of non-stop and continuous vacuum through the external driving system of complete electrical isolation, the vacuum sealing property, the insulation integrity and the adjustment precision are combined, and the harsh operation requirements of the superconducting cyclotron high-voltage beam extraction system are met.

[0061] The above is the preferred embodiment of the application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the 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 through-hole, 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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