Accurate focusing adjusting device for high-energy electron beam transmission path

Abstract

The utility model discloses a high energy electron beam transmission path accurate focusing adjusting device, relates to the electron gun technology field, and comprises a lower pipeline, the top surface of the lower pipeline is fixedly provided with a connecting sleeve, the top surface of the connecting sleeve is provided with an upper pipeline through a limiting mechanism, the outer side of the lower pipeline is fixedly provided with a water tank, and the water tank is provided with a water outlet. A heat conduction plate is installed on the outer side of the water tank, a refrigeration sheet is installed on the outer side of the heat conduction plate and attached to the heat conduction plate, an installation plate is slidably connected into the connecting sleeve, and a focusing coil body is installed on the top face of the installation plate. And the focusing coil body can be popped out conveniently, so that maintenance personnel can maintain the focusing coil body conveniently.

Description

Technical Field

[0001] This utility model relates to the field of electron gun technology, and in particular to a precise focusing adjustment device for the transmission path of a high-energy electron beam. Background Technology

[0002] An electron gun is a device that generates, accelerates, and converges a high-energy-density electron beam. Inside the electron gun, the filament, usually a tungsten filament, generates a large number of thermionic electrons on its surface after being heated by electricity. Under the action of the high-voltage electric field between the anode and cathode, the thermionic electrons are accelerated and move at high speed towards the anode, gaining high kinetic energy. Under the action of the focusing coil, the electron beam can be focused. Under the action of the guide coil, also known as the deflection coil, the electron beam can be deflected, thereby scanning within a certain range.

[0003] In Chinese utility model patents, such as CN219180469U, an electron beam focusing adjustment device is disclosed. By rotating the connecting sleeve, the upper flange and the lower flange are separated, exposing the focusing coil. Rotating the ring gear causes the pressure bar to disengage from the focusing coil, and the focusing coil is ejected by the reset component, making it convenient for workers to pick up and replace. This effectively improves work efficiency. Furthermore, the limiting rod and the ring plate ensure that the positions of the lower flange and the lower pipe are kept accurate, preventing the positions of parts in the lower pipe from not corresponding to the positions of parts in the upper pipe after the focusing coil is replaced.

[0004] However, the above-mentioned technologies cannot quickly and effectively dissipate the heat generated by the focusing coil during use. Long-term use may lead to a decline in coil performance, affecting the focusing effect and even causing safety hazards. In view of this, this application proposes a precise focusing adjustment device for the high-energy electron beam transmission path. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a precise focusing adjustment device for the transmission path of a high-energy electron beam.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-energy electron beam transmission path precision focusing adjustment device includes a lower pipe, a connecting sleeve fixedly installed on the top surface of the lower pipe, an upper pipe installed on the top surface of the connecting sleeve via a limiting mechanism, a water tank fixedly installed on the outer side of the lower pipe, a heat-conducting plate installed on the outer side of the water tank, a cooling fin installed on the outer side of the heat-conducting plate and in contact with the heat-conducting plate, an mounting plate slidably connected inside the connecting sleeve, a focusing coil body installed on the top surface of the mounting plate, multiple first spring telescopic rods symmetrically installed on the bottom wall of the connecting sleeve, and the top end of each first spring telescopic rod fixedly connected to the bottom surface of the mounting plate, a spiral heat exchange tube installed inside the wall of the connecting sleeve, a water circulation mechanism provided on the outer side of the water tank, and the spiral heat exchange tube connected to the water tank through the water circulation mechanism.

[0008] Preferably, the water circulation mechanism includes a water pump, which is fixed and connected to the outside of the water tank. An inlet pipe is fixed and connected to the outside of the water pump, and the other end of the inlet pipe is connected to the bottom opening of the spiral heat exchange tube. The top opening of the spiral heat exchange tube is connected to a return pipe, and the other end of the return pipe is connected to the water tank.

[0009] Preferably, the limiting mechanism includes two L-shaped support rods, which are symmetrically installed on the outside of the connecting sleeve. A second spring telescopic rod is fixedly installed on the outside of each L-shaped support rod. An annular plate is fixedly installed on the other end of each second spring telescopic rod. The arc-shaped side of each annular plate abuts against the outside of the upper pipe, and the bottom surface of each annular plate contacts the top surface of the second connecting flange.

[0010] Preferably, each of the annular plates has multiple pins fixedly installed on its arc-shaped side, and the outer side of the upper pipe has multiple insertion holes symmetrically opened, with each pin being engaged in the corresponding insertion hole.

[0011] Preferably, the bottom surface of the upper pipe is provided with a sealing rubber ring, and the sealing rubber ring abuts against the top surface of the connecting sleeve.

[0012] Preferably, a first connecting flange is fixedly installed on the outer side of the lower pipe. The top surface of the first connecting flange has multiple positioning holes, and the bottom surface of the second connecting flange has multiple positioning rods symmetrically installed, with each positioning rod being engaged in a corresponding positioning hole.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model uses a water circulation mechanism, spiral heat exchange plates, and cooling plates to drive the coolant in the water tank to flow into the spiral heat exchange plates, absorb heat from the connecting sleeve, and return to the water tank. The cooling plates absorb heat from the coolant in the water tank through the heat-conducting plate, thereby reducing the temperature of the device from all directions, ensuring its stable operation, and thus achieving efficient heat dissipation and extending the service life of the focusing coil body.

[0015] 2. This utility model achieves stability and precise adjustment of the device structure through a limiting mechanism and a first spring telescopic rod. In the limiting mechanism, the L-shaped support rod, together with the second spring telescopic rod and the annular plate, tightly abuts against the upper pipe. The design of the pin and the insertion hole further strengthens the connection. The first spring telescopic rod provides elastic support for the focusing coil body, making it easy for the focusing coil body to pop out, thus facilitating maintenance personnel to repair it. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the precision focusing adjustment device for the high-energy electron beam transmission path proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the water circulation mechanism of the high-energy electron beam transmission path precision focusing adjustment device proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the spiral heat exchanger tube installation structure of the high-energy electron beam transmission path precision focusing adjustment device proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the limiting mechanism of the high-energy electron beam transmission path precision focusing adjustment device proposed in this utility model.

[0020] In the diagram: 1. Lower pipe; 2. Upper pipe; 3. Water tank; 4. Connecting sleeve; 5. Cooling element; 6. Water pump; 7. Inlet pipe; 8. Return pipe; 9. First connecting flange; 10. Positioning hole; 11. Positioning rod; 12. Heat-conducting plate; 13. Spiral heat exchange tube; 14. Focusing coil body; 15. Mounting plate; 16. First spring telescopic rod; 17. Second connecting flange; 18. Insertion hole; 19. L-shaped support rod; 20. Annular plate; 21. Pin; 22. Second spring telescopic rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] This utility model provides a technical solution: such as Figure 1-4As shown, the high-energy electron beam transmission path precision focusing adjustment device includes a lower pipe 1, a connecting sleeve 4 fixedly installed on the top surface of the lower pipe 1, an upper pipe 2 installed on the top surface of the connecting sleeve 4 through a limiting mechanism, a water tank 3 fixedly installed on the outside of the lower pipe 1, a heat-conducting plate 12 installed on the outside of the water tank 3, a cooling fin 5 installed on the outside of the heat-conducting plate 12, and the cooling fin 5 is in contact with the heat-conducting plate 12. The cooling fin 5 is used for cooling, and the heat-conducting plate 12 is used to transfer the cold source to the water source in the water tank 3, thereby cooling the water source in the water tank 3.

[0023] The upper pipe 2 and the lower pipe 1 together form the electron beam transmission channel. A mounting plate 15 is slidably connected inside the connecting sleeve 4. The focusing coil body 14 is mounted on the top surface of the mounting plate 15. Multiple first spring telescopic rods 16 are symmetrically installed on the bottom wall of the connecting sleeve 4, and the top of each first spring telescopic rod 16 is fixedly connected to the bottom surface of the mounting plate 15. The first spring telescopic rods 16 facilitate the lifting of the focusing coil body 14, thereby facilitating maintenance by maintenance personnel. A spiral heat exchange tube 13 is installed inside the cylinder wall of the connecting sleeve 4. A water circulation mechanism is provided on the outside of the water tank 3, and the spiral heat exchange tube 13 is connected to the water tank 3 through the water circulation mechanism. The cold water flowing inside the spiral heat exchange tube 13 absorbs the heat emitted by the focusing coil body 14, and the position of the focusing coil body 14 is restricted by the bottom surface of the upper pipe 2.

[0024] Furthermore, the water circulation mechanism includes a water pump 6, which is fixed and connected to the outside of the water tank 3. The outside of the water pump 6 is fixed and connected to an inlet pipe 7, and the other end of the inlet pipe 7 is connected to the bottom opening of the spiral heat exchange tube 13. The top opening of the spiral heat exchange tube 13 is connected to a return pipe 8, and the other end of the return pipe 8 is connected to the water tank 3. The water circulation mechanism realizes the circulation of coolant between the water tank 3 and the spiral heat exchange tube 13, thereby effectively removing heat from the connecting sleeve 4.

[0025] Furthermore, the limiting mechanism includes two L-shaped support rods 19, which are symmetrically installed on the outside of the connecting sleeve 4. A second spring telescopic rod 22 is fixedly installed on the outside of each L-shaped support rod 19. A second connecting flange 17 is fixedly installed on the outside of the upper pipe 2. An annular plate 20 is fixedly installed on the other end of each second spring telescopic rod 22. The arc-shaped side of each annular plate 20 abuts against the outside of the upper pipe 2, and the bottom surface of each annular plate 20 contacts the top surface of the second connecting flange 17. Through the elastic force of the second spring telescopic rod 22, the annular plate 20 can tightly abut against the upper pipe 2, thereby limiting and fixing the upper pipe 2.

[0026] Furthermore, each annular plate 20 has multiple pins 21 fixedly installed on its arc-shaped side, and multiple insertion holes 18 are symmetrically opened on the outer side of the upper pipe 2, with each pin 21 being locked in the corresponding insertion hole 18, further enhancing the stability and accuracy of the installation of the upper pipe 2.

[0027] Furthermore, the bottom surface of the upper pipe 2 is provided with a sealing rubber ring, and the sealing rubber ring abuts against the top surface of the connecting sleeve 4.

[0028] Furthermore, a first connecting flange 9 is fixedly installed on the outer side of the lower pipe 1. Multiple positioning holes 10 are opened on the top surface of the first connecting flange 9. Multiple positioning rods 11 are symmetrically installed on the bottom surface of the second connecting flange 17, and each positioning rod 11 is locked in the corresponding positioning hole 10, which facilitates the installation and positioning between the lower pipe 1 and the upper pipe 2, and also enhances the stability of the entire device connection.

[0029] This invention provides a precise focusing adjustment device for the transmission path of a high-energy electron beam. The specific working principle is as follows: When the device starts working, the high-energy electron beam enters from the upper pipe 2, passes through the magnetic field region generated by the focusing coil body 14, and, according to actual needs, can change the magnetic field strength and distribution by adjusting parameters such as the current of the focusing coil body 14, thereby precisely focusing and adjusting the transmission path of the high-energy electron beam.

[0030] During the operation of the device, the focusing coil body 14 and other components generate heat. The coolant in the water tank 3 is pumped by the water pump 6 and enters the spiral heat exchange tube 13 through the water inlet pipe 7. In the spiral heat exchange tube 13, the coolant absorbs the heat in the connecting sleeve 4 and then flows back to the water tank 3 through the return pipe 8. At the same time, the cooling chip 5 works and absorbs the heat of the coolant in the water tank 3 through the heat conduction plate 12 to reduce the temperature of the coolant and ensure the heat dissipation effect.

[0031] The limiting mechanism always limits and fixes the upper pipe 2, ensuring the stability of the upper pipe 2 during operation and preventing displacement of the upper pipe 2 due to vibration and other factors, which would affect the transmission of the electron beam.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A precision focusing adjustment device for a high-energy electron beam transport path, comprising a lower duct (1), characterized in that, The top surface of the lower pipeline (1) is fixedly installed with a connecting sleeve (4), the top surface of the connecting sleeve (4) is installed with an upper pipeline (2) through a limiting mechanism, the outer side of the lower pipeline (1) is fixedly installed with a water tank (3), the outer side of the water tank (3) is installed with a heat conduction plate (12), the outer side of the heat conduction plate (12) is installed with a refrigeration fin (5), the refrigeration fin (5) is attached to the heat conduction plate (12), the connecting sleeve (4) is slidably connected with a mounting plate (15), the top surface of the mounting plate (15) is installed with a focusing coil body (14), the bottom wall of the connecting sleeve (4) is symmetrically installed with a plurality of first spring telescopic rods (16), and the top end of each first spring telescopic rod (16) is fixedly connected with the bottom surface of the mounting plate (15), the connecting sleeve (4) is installed with a spiral heat exchange pipe (13) in the cylinder wall, the outer side of the water tank (3) is provided with a water circulation mechanism, and the spiral heat exchange pipe (13) is connected with the water tank (3) in communication through the water circulation mechanism.

2. The device for precise focusing adjustment of the high-energy electron beam transport path according to claim 1, characterized in that, The water circulation mechanism comprises a water pump (6), and the water pump (6) is fixedly connected and communicated on the outer side of the water tank (3), the outer side of the water pump (6) is fixedly connected and communicated with a water inlet pipe (7), and the other end of the water inlet pipe (7) is connected with the bottom end opening of the spiral heat exchange pipe (13), the top end opening of the spiral heat exchange pipe (13) is connected with a return pipe (8), and the other end of the return pipe (8) is connected with the water tank (3).

3. The device for precise focusing adjustment of a high-energy electron beam transport path according to claim 2, characterized in that The limiting mechanism comprises two L-shaped supporting rods (19), and the two L-shaped supporting rods (19) are symmetrically installed on the outer side of the connecting sleeve (4), the outer side of each L-shaped supporting rod (19) is fixedly installed with a second spring telescopic rod (22), the outer side of the upper pipeline (2) is fixedly installed with a second connecting flange (17), the other end of each second spring telescopic rod (22) is fixedly installed with an annular plate (20), and the arc-shaped side surface of each annular plate (20) is in contact with the outer side of the upper pipeline (2), and the bottom surface of each annular plate (20) is in contact with the top surface of the second connecting flange (17).

4. The device for precise focusing adjustment of a high-energy electron beam transport path according to claim 3, characterized in that The arc-shaped side of each annular plate (20) is fixedly installed with a plurality of latches (21), the outer side of the upper pipeline (2) is symmetrically provided with a plurality of insertion holes (18), and each latch (21) is clamped in the corresponding insertion hole (18).

5. The device for precise focusing adjustment of a high-energy electron beam transport path according to claim 4, characterized in that The bottom surface of the upper pipeline (2) is provided with a sealing rubber ring, and the sealing rubber ring is in contact with the top surface of the connecting sleeve (4).

6. The device for precise focusing adjustment of a high-energy electron beam transport path according to claim 3, characterized in that The outer side of the lower pipeline (1) is fixedly installed with a first connecting flange (9), the top surface of the first connecting flange (9) is provided with a plurality of positioning holes (10), the bottom surface of the second connecting flange (17) is symmetrically installed with a plurality of positioning rods (11), and each positioning rod (11) is clamped in the corresponding positioning hole (10).

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