Assembly jig for electron beam irradiation equipment

Abstract

An assembly jig for an electron beam irradiation device is provided that allows a booster coil to be easily assembled inside a pressure tank. The electron beam irradiation device includes a pressure tank 20 and a booster coil 30 that is assembled inside the pressure tank 20. An assembly jig 40 is used to assemble the booster coil 30 in the electron beam irradiation device. The assembly jig 40 includes a carriage part 41 that has wheels 53, and a coil support part 42 that supports the booster coil 30.

Description

[Technical Field]

[0001] The present invention relates to an assembly jig for an electron beam irradiation device. [Background technology]

[0002] An electron beam irradiation device is a device that irradiates a workpiece with generated electron beams. Electron beam irradiation devices are used for purposes such as improving the properties of the material of the workpiece, adding functions, and sterilizing the workpiece. Some electron beam irradiation devices include a Schenkel-type DC high-voltage power supply device, as shown in Patent Document 1, for example. The Schenkel-type DC high-voltage power supply device includes a booster coil that is installed inside a pressure tank. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-16852 Summary of the Invention [Problem to be solved by the invention]

[0004] In the electron beam irradiation apparatus described above, it has been studied how to make it easier to assemble the booster coil inside the pressure tank. [Means for solving the problem]

[0005] An assembly jig for an electron beam irradiation device according to one aspect of the present disclosure is an assembly jig used to assemble a boost coil in an electron beam irradiation device that includes a pressure tank and a boost coil assembled inside the pressure tank, and includes a cart portion with wheels and a coil support portion that supports the boost coil.

[0006] According to the above configuration, the booster coil can be easily transported by moving the cart while the booster coil is supported by the coil support section, and therefore the booster coil can be easily assembled inside the pressure tank. [Effects of the Invention]

[0007] According to the assembly jig for an electron beam irradiation device of the present invention, it is possible to easily assemble the booster coil inside the pressure tank. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram including an electrical configuration of an electron beam irradiation device according to an embodiment. [Figure 2] FIG. 2 is a schematic diagram showing a pressure tank to which a booster coil according to the embodiment is assembled. [Figure 3] FIG. 3 is a schematic diagram showing a pressure tank to which a booster coil according to the embodiment is assembled. [Figure 4] FIG. 4 is a schematic diagram for explaining an assembly mode of the booster coil using an assembly jig in the same embodiment. [Figure 5] FIG. 5 is a schematic diagram for explaining an assembly mode of the booster coil using an assembly jig in the same embodiment. [Figure 6] FIG. 6 is a schematic diagram for explaining the assembling mode of the booster coil using the assembly jig in this embodiment. [Figure 7] FIG. 7 is a schematic diagram for explaining the assembling mode of the booster coil using the assembly jig in this embodiment. [Figure 8] FIG. 8 is a schematic diagram for explaining an assembly mode of the booster coil using an assembly jig in this embodiment. [Figure 9] FIG. 9 is a schematic diagram for explaining an assembly mode of the booster coil using an assembly jig in this embodiment. [Figure 10] FIG. 10 is a schematic diagram for explaining the assembling mode of the booster coil using the assembly jig in this embodiment. [Figure 11] FIG. 11 is a schematic diagram showing an assembly jig in a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of an assembly jig for an electron beam irradiation device will be described below with reference to the drawings. Note that for the sake of convenience, some components may be shown exaggerated or simplified in the drawings. Furthermore, the dimensional proportions of each part may differ from the actual proportions.

[0010] (Electrical configuration of the electron beam irradiation device 10) The electron beam irradiation device 10 of this embodiment shown in Fig. 1 is, for example, a scanning irradiation type electron beam irradiation device. The electron beam irradiation device 10 includes a filament 11 made of, for example, tungsten, which emits thermoelectrons. The filament 11 emits electrons by heating itself based on power supply from a filament power supply P1 included in a power supply device Ps. The filament 11 is provided at the upstream end of an accelerator 12.

[0011] The accelerator 12 has a plurality of accelerating electrodes 13 arranged side by side in its axial direction. Based on power supply from an accelerating electrode power supply P2 included in the power supply Ps, the accelerating electrodes 13 generate an electric field that converges and accelerates electrons emitted from the filament 11 toward the downstream side. In other words, in the accelerator 12, an electron flow, i.e., an electron beam Eb, directed toward the downstream side is generated by the electric field generated in the accelerating electrodes 13. A scan tube 14 is connected to the downstream end of the accelerator 12. The accelerator 12 and the scan tube 14 are connected to each other through an internal space 15. In the internal space 15, the electron beam Eb travels from the accelerator 12 toward the scan tube 14.

[0012] The scan tube 14 has a shape that widens toward the downstream side. A scan coil 16 is provided at the upstream end of the scan tube 14. The scan coil 16 scans the electron beam Eb generated by the accelerator 12 when current is applied to the scan coil 16. An approximately rectangular exit port 17, for example, is provided at the downstream end of the scan tube 14. A approximately rectangular window foil 18 is attached to the exit port 17. The window foil 18 seals the exit port 17 while allowing the electron beam Eb to pass through. In other words, an internal space 15 spanning the accelerator 12 and the scan tube 14 is configured as an airtight space. The internal space 15 is kept in a vacuum state, for example, by driving a vacuum pump 19 connected to the scan tube 14, at least during the period in which the electron beam Eb is generated.

[0013] The above-mentioned filament power supply P1, accelerating electrode power supply P2, scan coil 16, and vacuum pump 19 are controlled by a control unit CU. That is, the control unit CU adjusts the output of the electron beam Eb through the power supplies P1 and P2. The control unit CU also controls the scanning of the electron beam Eb through the scan coil 16. The control unit CU also adjusts the vacuum of the accelerator 12 and the internal space 15 of the scan tube 14 through the vacuum pump 19.

[0014] The electron beam Eb emitted from the exit port 17 through the window foil 18 is irradiated onto the workpiece W being transported by the transport unit WC. For example, the longitudinal direction of the substantially rectangular exit port 17 is set to be oriented in a direction perpendicular to the transport direction of the transport unit WC. Then, the scanning coil 16 performs a predetermined scan of the electron beam Eb, thereby irradiating an irradiation area A of a substantially rectangular shape corresponding to the exit port 17. Irradiating the workpiece W with the electron beam Eb has the effect of improving the properties of the material, adding functions, sterilizing, etc., for example.

[0015] (Pressure tank 20 and its internal structure) As shown in FIG. 2, the electron beam irradiation device 10 includes a pressure tank 20 and a boost coil 30 housed inside the pressure tank 20. The boost coil 30 is one of the components of the power supply device Ps. The pressure tank 20 also houses a capacitor (not shown), which is one of the components of the power supply device Ps and forms a boost circuit together with the boost coil 30. The power supply device Ps is a Schenkel-type DC high-voltage power supply. The pressure tank 20 is filled with insulating gas (not shown). The power supply device Ps, including the boost coil 30, is placed in an atmosphere of insulating gas.

[0016] The pressure tank 20 includes a tank body 21, a first lid 22, and a second lid 23. The tank body 21 has, for example, a substantially cylindrical shape. That is, the inner peripheral surface of the tank body 21 has, for example, a circular shape when viewed in the axial direction X. The first lid 22 and the second lid 23 openably and closably close openings at both ends of the tank body 21 in the axial direction (axial direction X). Hereinafter, in the tank body 21, the opening closed by the first lid 22 will be referred to as a first opening 21a, and the opening closed by the second lid 23 will be referred to as a second opening 21b. A pair of support legs 24, for example, is provided on the lower part of the tank body 21.

[0017] The pressure tank 20 includes a first fixing member 25, a second fixing member 26, and a third fixing member 27, each of which is fixed to the tank body 21. Each of the first fixing member 25 and the second fixing member 26 has an elongated shape that extends linearly along the height direction Z, for example.

[0018] The first fixing member 25 is fixed to a pair of first fixing pieces 21c provided on the inner circumferential surface of the tank body 21 near the upper and lower ends of the first opening 21a. The first fixing member 25 has an upper end fixed to one of the first fixing pieces 21c and a lower end fixed to the other first fixing piece 21c. The first fixing member 25 is fastened to each first fixing piece 21c by, for example, a bolt or the like. Each first fixing piece 21c is provided, for example, in the center of the tank body 21 in the width direction Y (see FIG. 3). The first fixing member 25 is also provided in the center of the tank body 21 in the width direction Y. Note that FIG. 3 is a view of the pressure tank 20 from the axial direction X with the first opening 21a open. The first fixing member 25 has a first support hole 25a penetrating in the axial direction X.

[0019] As shown in FIG. 2, the second fixing member 26 is fixed to a pair of second fixing pieces 21d provided on the inner circumferential surface of the tank body 21 near the upper and lower ends of the second opening 21b. The second fixing member 26 has an upper end fixed to one of the second fixing pieces 21d and a lower end fixed to the other second fixing piece 21d. The second fixing member 26 is fastened to each second fixing piece 21d by, for example, a bolt or the like. Each second fixing piece 21d is provided, for example, in the center of the tank body 21 in the width direction Y. Similarly, the second fixing member 26 is provided in the center of the tank body 21 in the width direction Y. The second fixing member 26 has a second support hole 26a penetrating in the axial direction X.

[0020] The third fixing members 27 are fixed to the inner circumferential surface of the tank body 21 near the center of the tank body 21 in the axial direction X. As shown in Fig. 3, a pair of third fixing members 27 are provided inside the tank body 21 near both ends in the width direction Y. The boost coil 30 is disposed between the pair of third fixing members 27.

[0021] (Configuration of boost coil 30) As shown in FIGS. 2 and 3 , the boost coil 30 includes a shaft portion 31, a coil body 32 formed by winding a wire around the shaft portion 31, and a fixing flange 33 provided at a middle portion of the shaft portion 31 in the axial direction X. The shaft portion 31 has an elongated shape extending along the axial direction X. The shaft portion 31 has, for example, a hollow pipe shape. The fixing flange 33 is fixed to the shaft portion 31. The fixing flange 33 has, for example, a flat plate shape perpendicular to the axial direction X. The shaft portion 31 and the fixing flange 33 are each formed of, for example, a synthetic resin. The coil body 32 is wound around the outer periphery of the shaft portion 31 on both sides of the fixing flange 33 in the axial direction X. The coil body 32 is electrically connected to the capacitor in the pressure tank 20. The fixing flange 33 is located, for example, near the center of the coil body 32 in the axial direction X.

[0022] Next, the support structure of the booster coil 30 in the pressure tank 20 will be described. The fixing flange 33 of the boost coil 30 is fastened to each third fixing member 27 with, for example, bolts. One end side of the shaft portion 31 of the boost coil 30 in the axial direction X is inserted into the first support hole 25a of the first fixing member 25, and the other end side in the axial direction X is inserted into the second support hole 26a of the second fixing member 26. As a result, the shaft portion 31 is supported on both sides in the axial direction X by the first fixing member 25 and the second fixing member 26, respectively.

[0023] (Configuration of assembly jig 40) 4 is a jig for assembling the booster coil 30 inside the pressure tank 20 (tank body 21). The assembly jig 40 includes a carriage part 41 and a coil support part 42 that supports the booster coil 30.

[0024] (Configuration of the bogie section 41) The cart unit 41 includes a coil mounting base 51 on which the booster coil 30 is mounted, a plurality of legs 52 that support the coil mounting base 51, and wheels 53 provided at the bottom end of each leg 52. The wheels 53 enable the cart unit 41 to move smoothly, for example, on the floor F. Note that the wheels 53 may have a caster structure that is rotatable about an axis perpendicular to the floor F, for example.

[0025] The booster coil 30 is placed on the coil placing base 51, for example, so that the lower end of the fixing flange 33 abuts against the upper surface of the coil placing base 51. In other words, the coil placing base 51 functions as a part of the coil support portion 42. More specifically, the coil placing base 51 functions as an intermediate support portion of the coil support portion 42.

[0026] The plurality of legs 52 are each connected to the coil mounting base 51. At least some of the plurality of legs 52 are configured as movable legs 54 with a height adjustment mechanism. In this embodiment, the plurality of legs 52 includes a plurality of movable legs 54.

[0027] 5, each movable leg 54 is configured to be tiltable, for example. The cart unit 41 of this embodiment can enter the inside of the tank main body 21 by tilting each movable leg 54 to a stored state. The cart unit 41 is also configured to be able to displace the coil mounting base 51 in the height direction Z by tilting each movable leg 54. The tilt angle of the movable leg 54 (i.e., the position of the coil mounting base 51 in the height direction Z) can be adjusted, for example, by operating an operating unit (not shown) such as a lever provided on the cart unit 41.

[0028] (Configuration of coil support portion 42) The coil support portion 42 includes a first shaft support portion 61, a second shaft support portion 62, and a coil placement base 51 serving as an intermediate support portion.

[0029] The first shaft support 61 and the second shaft support 62 are detachably coupled to, for example, both ends of the coil mounting base 51 in the axial direction X. The first shaft support 61 has a first through hole 63 penetrating along the axial direction X. The second shaft support 62 has a second through hole 64 penetrating along the axial direction X. The shaft portion 31 of the boost coil 30 can be inserted into the first through hole 63 and the second through hole 64. When the boost coil 30 is placed on the coil mounting base 51, one end side of the shaft portion 31 in the axial direction X is inserted into the first through hole 63, and the other end side in the axial direction X is inserted into the second through hole 64. As a result, the boost coil 30 is supported at three locations: the coil mounting base 51, the first through hole 63 of the first shaft support 61, and the second through hole 64 of the second shaft support 62.

[0030] As described above, the coil mounting base 51 serving as an intermediate support supports the fixing flange 33 of the boost coil 30. That is, the coil mounting base 51 supports the boost coil 30 between the first shaft support portion 61 and the second shaft support portion 62 in the axial direction X. The assembly jig 40 of this embodiment supports the boost coil 30 at three points by the first shaft support portion 61, the second shaft support portion 62, and the coil mounting base 51.

[0031] (Assembling the booster coil 30 using the assembly jig 40) Next, the assembly of the booster coil 30 to the pressure tank 20 using the assembly jig 40 will be described.

[0032] 4, first, the boost coil 30 is attached to the assembly jig 40. Here, the boost coil 30 is placed on the coil mounting table 51, and the shaft portion 31 of the boost coil 30 is inserted into the first through-hole 63 of the first shaft support portion 61 and the second through-hole 64 of the second shaft support portion 62.

[0033] 5, the entire assembly jig 40 supporting the booster coil 30, including the carriage portion 41, is inserted into the tank body 21. At this time, the first opening 21a and the second opening 21b of the tank body 21 of the pressure tank 20 are left open. Then, for example, the assembly jig 40 supporting the booster coil 30 is inserted into the tank body 21 from the first opening 21a. Also, at this time, the assembly jig 40 supporting the booster coil 30 is inserted into the tank body 21 from the second shaft support portion 62 side.

[0034] When inserting the assembly jig 40, the movable legs 54 of the carriage 41 are tilted to a stored state. The assembly jig 40 supporting the boost coil 30 is inserted to a position where the fixing flange 33 of the boost coil 30 can be connected to the third fixing member 27 of the tank body 21.

[0035] Thereafter, the fixing flange 33 is fastened to the third fixing member 27 by bolts or the like (not shown). At this time, the fixing flange 33 is fixed to the third fixing member 27 while adjusting the height position of the boost coil 30 by changing the tilt angle of the movable leg 54 serving as a height adjustment mechanism.

[0036] Next, as shown in FIGS. 6 and 7, the process moves to a step of assembling a support structure for the shaft portion 31 on the second opening portion 21b side. 6, the shaft portion 31 is supported by a temporary support member Ts fixed to the end of the tank body 21 on the second opening 21b side, and the second shaft support member 62 is removed from the coil mounting base 51. In this way, by using the temporary support member Ts, the second shaft support member 62 can be removed while maintaining three-point support at the vicinity of both ends of the shaft portion 31 and the lower end of the fixing flange 33.

[0037] 7, the shaft 31 is inserted into the second support hole 26a, the second fixing member 26 is fixed to each second fixing piece 21d with a bolt or the like (not shown), and the temporary support member Ts is removed from the tank body 21. As a result, the shaft 31 is supported by the second fixing member 26 fixed to the tank body 21 on the second opening 21b side.

[0038] 8, the shaft portion 31 is supported by a temporary support member Ts fixed to the end of the tank body 21 on the first opening 21a side, and the first shaft support member 61 is removed from the coil mounting base 51. In this way, by using the temporary support member Ts, the first shaft support member 61 can be removed while maintaining three-point support at the vicinity of both ends of the shaft portion 31 and the lower end of the fixing flange 33.

[0039] 9, the carriage 41, from which the first shaft support 61 and the second shaft support 62 have been removed, is removed from the tank body 21 through the first opening 21a. Here, because the second shaft support 62 has been removed from the carriage 41, the carriage 41 can be removed from the tank body 21 without the second shaft support 62 interfering with the coil body 32 or the fixing flange 33 of the boost coil 30. When removing the carriage 41 from the tank body 21, the carriage 41 can be placed in an upright position by tilting the movable legs 54 and returning them from the stored state to the deployed state.

[0040] 10, while the shaft portion 31 is inserted into the first support hole 25a, the first fixing member 25 is fixed to each first fixing piece 21c with a bolt or the like (not shown), and the temporary support member Ts is removed from the tank body 21. As a result, the shaft portion 31 is supported by the first fixing member 25 fixed to the tank body 21 on the side of the first opening 21a.

[0041] Thereafter, the first opening 21a and the second opening 21b in the tank body 21 are closed by the first lid 22 and the second lid 23, respectively. This completes the assembly of the booster coil 30 inside the pressure tank 20.

[0042] (Effects of this embodiment) The effects of this embodiment will be described below. (1) The assembly jig 40 used to assemble the boost coil 30 in the electron beam irradiation device 10 includes a carriage 41 with wheels 53 and a coil support 42 that supports the boost coil 30. The assembly jig 40 can easily transport the boost coil 30 by moving the carriage 41 with the boost coil 30 supported by the coil support 42. This makes it possible to easily assemble the boost coil 30 inside the pressure tank 20.

[0043] (2) The assembly jig 40 is configured so that the entire assembly jig 40, including the carriage 41, can be inserted into the pressure tank 20 while the coil support 42 supports the boost coil 30. According to this configuration, by inserting the entire assembly jig 40, including the carriage 41, into the pressure tank 20, the boost coil 30 can be easily inserted into the pressure tank 20.

[0044] (3) The carriage 41 has movable legs 54 provided with wheels 53. When the movable legs 54 are in a stored state, the entire assembly jig 40 including the carriage 41 can be inserted into the pressure tank 20. After the carriage 41 is removed from the tank body 21, the movable legs 54 can be expanded from the stored state to allow the carriage 41 to stand upright.

[0045] (4) The movable legs 54 function as a height adjustment mechanism that can adjust the height position of the booster coil 30 supported by the coil support portion 42. According to this configuration, the movable legs 54 as a height adjustment mechanism make it possible to adjust the height of the booster coil 30 when assembling it to the pressure tank 20.

[0046] (5) The boost coil 30 includes a shaft portion 31 and a coil body 32 wound around the shaft portion 31 at a middle portion in the axial direction X. The coil support portion 42 includes shaft support portions (in this embodiment, a first shaft support portion 61 and a second shaft support portion 62) that support the shaft portion 31. With this configuration, the shaft support portions of the coil support portion 42 can support the shaft portion 31.

[0047] (6) In the coil support section 42, the shaft support section that supports the shaft section 31 includes a first shaft support section 61 that supports one end of the shaft section 31 in the axial direction X, and a second shaft support section 62 that supports the other end of the shaft section 31 in the axial direction X. The coil support section 42 also includes a coil mounting base 51 as an intermediate support section that supports the boost coil 30 between the first shaft support section 61 and the second shaft support section 62 in the axial direction X. With this configuration, the boost coil 30 can be stably supported by the assembly jig 40 due to three-point support by the first shaft support section 61, the second shaft support section 62, and the coil mounting base 51.

[0048] (7) The booster coil 30 includes a fixing flange 33 provided at the middle of the shaft portion 31 in the axial direction X. The coil mounting base 51 serving as a middle support portion supports the fixing flange 33. With this configuration, the coil mounting base 51 supports the fixing flange 33, thereby enabling support of the booster coil 30 near the center in the axial direction X.

[0049] (8) Each of the first shaft support portion 61 and the second shaft support portion 62 is detachably connected to the coil mounting base 51, which serves as an intermediate support portion. That is, each of the first shaft support portion 61 and the second shaft support portion 62 is detachably connected to the carriage portion 41. According to this configuration, after the shaft portion 31 of the booster coil 30 is connected to the pressure tank 20, by removing the first shaft support portion 61 and the second shaft support portion 62 from the coil mounting base 51, it becomes possible to remove the assembly jig 40 from the pressure tank 20 without interfering with the components inside the pressure tank 20, such as the booster coil 30.

[0050] (9) The carriage 41 includes a coil mounting base 51 that functions as an intermediate support portion when the booster coil 30 is mounted thereon. The first shaft support portion 61 and the second shaft support portion 62 are each detachably connected to the coil mounting base 51, thereby integrally configuring the carriage 41 and the coil support portion 42. This configuration allows the coil mounting base 51, which is part of the carriage 41, to function as an intermediate support portion for the coil support portion 42, thereby contributing to simplifying the configuration of the assembly jig 40.

[0051] (Other embodiments) The above embodiment can be modified as follows: The above embodiment and the following modifications can be combined with each other to the extent that no technical contradiction occurs.

[0052] The configuration of the assembly jig 40 is not limited to that of the above embodiment, and may be changed to that of an assembly jig 70 as shown in Fig. 11. In the following description of the configuration shown in Fig. 11, the same components as those in the above embodiment will be assigned the same reference numerals as those in the above embodiment, and detailed description thereof will be omitted.

[0053] 11 includes a carriage part 71 and a coil support part 72 that is detachably connected to the carriage part 71. The carriage part 71 includes a base 73, a plurality of legs 52 connected to the base 73, and wheels 53 provided at the lower end of each leg 52.

[0054] The coil support part 72 is configured to be removable from the carriage part 71 while being able to support the boost coil 30 by itself. The coil support part 72 includes a first shaft support part 61, a second shaft support part 62, and an intermediate support part 81 that supports the boost coil 30 between the first shaft support part 61 and the second shaft support part 62 in the axial direction X. For example, the boost coil 30 is placed on the intermediate support part 81 so that the lower end of the fixed flange 33 abuts against the upper surface of the intermediate support part 81. In this way, the fixed flange 33 is supported by the intermediate support part 81.

[0055] The first shaft support portion 61 and the second shaft support portion 62 are each detachably connected to, for example, both ends of the intermediate support portion 81 in the axial direction X. The boost coil 30 is supported at three locations: the intermediate support portion 81, the first through-hole 63 of the first shaft support portion 61, and the second through-hole 64 of the second shaft support portion 62. The base 73 of the carriage portion 71 supports the entire coil support portion 72, including the first shaft support portion 61, the second shaft support portion 62, and the intermediate support portion 81.

[0056] The intermediate support portion 81 of the coil support portion 72 is detachably connected to the base 73. As a result, by removing the intermediate support portion 81 from the base 73, the coil support portion 72 supporting the booster coil 30 can be separated from the carriage portion 71. According to this configuration, by separating the intermediate support portion 81 of the coil support portion 42 from the base 73 of the carriage portion 71, it is possible to insert only the coil support portion 42 supporting the booster coil 30 into the pressure tank 20, while leaving the carriage portion 71 outside the pressure tank 20. Note that in the configuration shown in FIG. 11 , the coil support portion 72 may be provided with a height adjustment mechanism that can adjust the height position of the booster coil 30 that it supports. Furthermore, the pressure tank 20 may be provided with rails inside the pressure tank 20 that guide the coil support portion 72 when the coil support portion 72 is inserted into the pressure tank 20.

[0057] The effects of the modification shown in FIG. 11 will be described below. The assembly jig 70 used to assemble the boost coil 30 in the electron beam irradiation device 10 includes a carriage part 71 with wheels 53 and a coil support part 72 that supports the boost coil 30. With the assembly jig 70, the boost coil 30 can be easily transported by moving the carriage part 71 with the boost coil 30 supported by the coil support part 72. Therefore, the boost coil 30 can be easily assembled inside the pressure tank 20.

[0058] 11, the coil support 72 includes a first shaft support 61, a second shaft support 62, and an intermediate support 81 that supports the boost coil 30 between the first shaft support 61 and the second shaft support 62 in the axial direction X. With this configuration, the three-point support provided by the first shaft support 61, the second shaft support 62, and the intermediate support 81 allows the assembly jig 70 to stably support the boost coil 30.

[0059] 11, the boost coil 30 includes a fixed flange 33 provided at a middle portion of the shaft portion 31 in the axial direction X. The middle support portion 81 supports the fixed flange 33 provided at a middle portion of the shaft portion 31 in the axial direction X of the boost coil 30. With this configuration, the middle support portion 81 supports the fixed flange 33 of the boost coil 30, thereby enabling support of the boost coil 30 near the center in the axial direction X.

[0060] 11, each of the first shaft support portion 61 and the second shaft support portion 62 is detachably connected to the intermediate support portion 81. According to this configuration, after the shaft portion 31 of the boost coil 30 is connected to the pressure tank 20, by removing the first shaft support portion 61 and the second shaft support portion 62 from the intermediate support portion 81, it becomes possible to remove the coil support portion 72 from the pressure tank 20 without interfering with the components inside the pressure tank 20, such as the boost coil 30.

[0061] 11 , the carriage 71 includes a base 73 to which the intermediate support portion 81 of the coil support portion 72 is detachably connected. With this configuration, by separating the intermediate support portion 81 of the coil support portion 42 from the base 73 of the carriage 71, it becomes possible to insert only the coil support portion 42 that supports the booster coil 30 into the pressure tank 20, while leaving the carriage 71 outside the pressure tank 20.

[0062] The support structure of the booster coil 30 in the assembly jig 40 is not limited to the above embodiment, and can be modified as appropriate. In the above embodiment, the first shaft support portion 61 and the second shaft support portion 62 support the shaft portion 31 at the first through hole 63 and the second through hole 64, respectively, through which the shaft portion 31 is inserted. However, other configurations may also be used, for example, in which the shaft portion 31 is supported by a support protrusion inserted inside the shaft portion 31. Furthermore, the shaft portion 31 may also be supported by a groove portion provided in each of the first shaft support portion 61 and the second shaft support portion 62.

[0063] 11, the boost coil 30 may be supported at two points, the first shaft support portion 61 and the second shaft support portion 62. In other words, the boost coil 30 may be configured so that the fixing flange 33 and other portions thereof do not abut against the coil mounting base 51 or the intermediate support portion 81.

[0064] In the above embodiment and the modified example shown in FIG. 11, the boost coil 30 may be supported only by the coil mounting base 51 or only by the intermediate support portion 81. That is, the first shaft support portion 61 and the second shaft support portion 62 may be omitted. In this case, the temporary support member Ts may also be omitted.

[0065] The configuration of the carriage 41 is not limited to the above embodiment, but can be changed as appropriate depending on the configuration of the electron beam irradiation device 10. The configuration of the height adjustment mechanism that can adjust the height position of the boost coil 30 in the assembly jig 40 is not limited to the above embodiment, and can be changed to a configuration other than the movable leg 54.

[0066] In the assembly jig 40 of the above embodiment, the height adjustment mechanism capable of adjusting the height position of the boost coil 30 may be omitted. The carriage 41 does not have to include the plurality of legs 52 including the movable legs 54.

[0067] The configuration of the pressure tank 20 is not limited to the above embodiment, but can be changed as appropriate depending on the configuration of the electron beam irradiation device 10. The configuration of the boost coil 30 is not limited to the above embodiment, but can be changed as appropriate depending on the configuration of the electron beam irradiation device 10.

[0068] The booster coil 30 does not have to have the fixing flange 33. The support structure of the booster coil 30 in the pressure tank 20 is not limited to the above embodiment, but can be modified as appropriate depending on the configuration of the electron beam irradiation device 10.

[0069] In the pressure tank 20, the first fixing member 25 and the second fixing member 26 may be omitted. That is, the booster coil 30 may be supported by the third fixing member 27 only. In the above embodiment, the electron beam irradiation device 10 is of the scanning irradiation type, but the present invention is not limited to this and can also be applied to electron beam irradiation devices other than the scanning irradiation type, such as an area irradiation type.

[0070] The embodiments disclosed herein are illustrative in all respects, and the present invention is not limited to these examples. That is, the scope of the present invention is defined by the claims, and it is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0071] 10...Electron beam irradiation device 20...Pressure tank 30...Boost coil 31...Shaft 32...Coil body 33...Fixed flange 40,70...Assembly jig 41,71...Bogie section 42, 72...Coil support 51... Coil placement table (intermediate support part) 52...legs 53...Wheel 54... Movable legs (height adjustment mechanism) 61...1st shaft support part (shaft support part) 62…Second shaft support part (shaft support part) 73...Foundation 81…Intermediate support part

Claims

1. 1. An assembly jig used to assemble a booster coil in an electron beam irradiation device including a pressure tank and a booster coil assembled inside the pressure tank, comprising: a carriage unit having wheels; a coil support portion that supports the boost coil, The assembly jig including the carriage portion is configured so that the entire assembly jig can be inserted into the pressure tank while the booster coil is supported by the coil support portion. Assembly jig for electron beam irradiation equipment.

2. the carriage unit includes movable legs on which the wheels are provided, When the movable legs are in the stored state, the entire assembly jig including the carriage portion can be inserted into the pressure tank.

2. An assembly jig for the electron beam irradiation device according to claim 1.

3. a height adjustment mechanism that can adjust the height position of the boost coil supported by the coil support portion, 2. An assembly jig for the electron beam irradiation device according to claim 1.

4. the booster coil includes a shaft portion and a coil body wound around an axially intermediate portion of the shaft portion, The coil support portion includes a shaft support portion that supports the shaft portion.

2. An assembly jig for the electron beam irradiation device according to claim 1.

5. The shaft support portion is detachably connected to the carriage portion.

5. An assembly jig for the electron beam irradiation device according to claim 4.

6. the shaft support portion includes a first shaft support portion that supports one axial end side of the shaft portion, and a second shaft support portion that supports the other axial end side of the shaft portion, The coil support portion includes an intermediate support portion that supports the boost coil between the first shaft support portion and the second shaft support portion in the axial direction.

5. An assembly jig for the electron beam irradiation device according to claim 4.

7. the booster coil includes a fixing flange provided at an axially intermediate portion of the shaft portion, The intermediate support portion supports the fixed flange.

7. An assembly jig for the electron beam irradiation device according to claim 6.

8. Each of the first shaft support portion and the second shaft support portion is detachably connected to the intermediate support portion.

7. An assembly jig for the electron beam irradiation device according to claim 6.

9. the carriage portion includes a coil mounting base that functions as the intermediate support portion when the booster coil is mounted thereon; The first shaft support portion and the second shaft support portion are each detachably connected to the coil mounting base, so that the carriage portion and the coil support portion are integrally configured.

9. An assembly jig for the electron beam irradiation device according to claim 8.

10. The carriage unit includes a base to which the intermediate support unit is detachably connected.

7. An assembly jig for the electron beam irradiation device according to claim 6.

Images