Turnover mechanism for cable irradiation and electron accelerator system

Abstract

Disclosed in the present invention are a turnover mechanism for cable irradiation and an electron accelerator system. The turnover mechanism for cable irradiation comprises a plurality of guide wheels and at least two turnover wheels. The electron accelerator system comprises an irradiation window and an electron accelerator. The turnover wheels are used for controlling irradiation angles of cables in the irradiation window. An included angle between the plane where the turnover wheels are located and an electron acceleration direction of the electron accelerator is greater than zero degree and less than 90 degrees. The guide wheels are used for guiding the cables onto the turnover wheels and guiding the cables into the range of the irradiation window. The present invention is applicable to the irradiation of large-diameter cables, such that cables are uniformly irradiated during irradiation, and cables are turned over by means of a guide wheel system configured at a specific angle, so as to achieve uniform irradiation at controllable angles, thus providing conditions for reducing the size of electron accelerator systems for cables.

Description

Cable irradiation flipping mechanism and electron accelerator system Technical Field

[0001] The technical field of this invention is cable irradiation equipment, and a cable irradiation flipping mechanism and an electron accelerator system are specifically designed. Background Technology

[0002] Cable irradiation refers to the process of subjecting cables to radiation treatment, typically through radiation crosslinking technology to enhance cable performance. This process primarily serves the following purposes:

[0003] Enhance the physical properties of cables: Radiation cross-linking can improve the heat resistance, abrasion resistance and mechanical strength of cables, making them perform better in harsh environments.

[0004] Improving the electrical performance of cables: Irradiation treatment can make the insulation material of cables more stable, thereby improving the insulation performance and voltage withstand capability of cables.

[0005] Extended service life: Cross-linked cables are more resistant to aging and corrosion, thus extending their service life.

[0006] The irradiation process typically uses high-energy electron beams or gamma rays. The treated cables exhibit improved reliability and durability in many applications, such as automotive, power, and electronics.

[0007] Existing cable irradiation devices suffer from drawbacks such as uneven cable irradiation, large device footprint, inconvenient assembly and production, and short service life of equipment and parts. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the defects of the prior art, such as uneven irradiation of cables, large footprint of the device, inconvenient assembly and production, and short service life of equipment and parts. The present invention provides a cable irradiation flipping mechanism and an electron accelerator system that are suitable for irradiating large-diameter cables, so that the cables are irradiated evenly during the irradiation process, and provide conditions for reducing the size of the electron accelerator system for cables.

[0009] The present invention solves the above-mentioned technical problems through the following technical solution:

[0010] A cable irradiation flipping mechanism for an electron accelerator system is characterized in that the cable irradiation flipping mechanism includes a plurality of guide wheels and at least two flipping wheels, and the electron accelerator system includes an irradiation window and an electron accelerator.

[0011] The flipping wheel is used to control the irradiation angle of the cable in the irradiation window. The angle between the plane where the flipping wheel is located and the electron acceleration direction of the electron accelerator is greater than zero degrees and less than 90 degrees.

[0012] The guide wheel is used to guide the cable onto the flipping wheel and guide the cable into the irradiation window area.

[0013] Preferably, the number of flipping wheels is one less than the number of cables passing through the irradiation window range at the same time.

[0014] Preferably, the number of the flipping wheels is 2.

[0015] For a cable, the guide wheel guides the cable through the irradiation window and into the second flipping wheel, the guide wheel guides the cable coming out of the second flipping wheel through the irradiation window and into the first flipping wheel, and the guide wheel guides the cable coming out of the first flipping wheel through the irradiation window and out of the cable irradiation flipping mechanism.

[0016] The angle between the plane containing the first flipping wheel and the direction of electron acceleration of the electron accelerator is 30 degrees, and the angle between the plane containing the first flipping wheel and the plane containing the second flipping wheel is 60 degrees.

[0017] Preferably, the guide wheel includes two sets of three-slot guide wheels, each three-slot guide wheel includes three single-slot guide wheels, the two three-slot guide wheels are at the same height, the electron acceleration direction of the electron accelerator is located in the plane where the two three-slot guide wheels are located, the two three-slot guide wheels are respectively located on both sides of the irradiation window, and the two single-slot flipping wheels are respectively located on both sides of the two three-slot guide wheels.

[0018] Preferably, the guide wheel further includes two single-groove guide wheels and two sets of double-groove guide wheels. Each double-groove guide wheel includes two single-groove guide wheels. The two double-groove guide wheels are respectively located on both sides of the two triple-groove guide wheels. The lowest point of the single-groove guide wheel and the double-groove guide wheel is lower than the highest point of the triple-groove guide wheel. The groove of the single-groove guide wheel is aligned with one groove of the triple-groove guide wheel, and the groove of the double-groove guide wheel is aligned with the other two grooves of the triple-groove guide wheel. The single-groove guide wheel and the double-groove guide wheel on one side are both located between the flipping wheel and the triple-groove guide wheel on the same side.

[0019] Preferably, the plane containing the single-groove guide wheel forms an angle of 30 degrees with the electron acceleration direction of the electron accelerator.

[0020] Preferably, the guide wheel further includes two single-groove guide wheels, one guide wheel guides the cable into a double-groove guide wheel, and the other guide wheel guides the output cable of the other double-groove guide wheel to be output from the cable irradiation and flipping mechanism.

[0021] Preferably, the electron accelerator system includes a shielded enclosure and a mobile cable irradiation platform;

[0022] The mobile cable irradiation platform includes a platform base, a shielding door body, and two cable take-up and delivery devices. The cable irradiation flipping mechanism is located on the platform base.

[0023] The platform base is equipped with a moving device at its bottom;

[0024] The shielding door body is vertically mounted at the rear end of the platform base;

[0025] The take-up and release device is used to wind the cable, and the cable on the take-up and release device is connected to the cable irradiation and flipping mechanism.

[0026] The cable irradiation and flipping mechanism guides the cable on the cable take-up and unwinding device to the rear of the shielding door body;

[0027] When the platform base moves to the working position, the shielding door body and the shielding shell form a shielding cavity, and the irradiation window is located in the shielding cavity.

[0028] Preferably, the electron accelerator system further includes two auxiliary shielding doors, which are located on the front side of the shielding door body and on both sides of the platform base. There is a wiring gap between the two auxiliary shielding doors and a wiring clearance between the auxiliary shielding doors and the shielding door body.

[0029] The present invention also provides an electron accelerator system, characterized in that the electron accelerator system includes the cable irradiation flipping mechanism described above.

[0030] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0031] The positive and progressive effects of this invention are as follows:

[0032] This invention is applicable to the irradiation of large-diameter cables, enabling the cables to be irradiated uniformly during the irradiation process. By using a guide wheel system configured at a specific angle to rotate the cable, a controllable angle of uniform irradiation is achieved, providing conditions for reducing the size of electron accelerator systems for cables.

[0033] This invention can be used in conjunction with a miniaturized electron accelerator to form a self-shielding structure, which provides shielding protection for the cable irradiation flipping mechanism, resulting in better shielding and a longer service life for the cable irradiation flipping mechanism.

[0034] Specifically:

[0035] 1. Suitable for miniaturized electron accelerators;

[0036] 2. All equipment for cable loading, conveying, under-beam irradiation, and various technical processing is installed on a mobile platform;

[0037] It greatly saves space and investment costs of traditional cable irradiation systems and reduces losses during the cable irradiation process. Attached Figure Description

[0038] Figure 1 is a schematic diagram of the electron accelerator system according to Embodiment 1 of the present invention.

[0039] Figure 2 is another structural schematic diagram of the electron accelerator system of Embodiment 1 of the present invention.

[0040] Figure 3 is a cross-sectional structural diagram of the electron accelerator system of Embodiment 1 of the present invention.

[0041] Figure 4 is a cross-sectional schematic diagram of the electron accelerator system of Embodiment 1 of the present invention.

[0042] Figure 5 is a schematic diagram of the cable irradiation flipping mechanism of Embodiment 1 of the present invention.

[0043] Figure 6 is another structural schematic diagram of the cable irradiation flipping mechanism of Embodiment 1 of the present invention.

[0044] Figure 7 is a schematic diagram of the cable irradiation flipping mechanism of Embodiment 2 of the present invention. Detailed Implementation

[0045] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0046] Example 1

[0047] In this embodiment, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] Referring to Figures 1 to 6, this embodiment provides an electron accelerator system for cable irradiation operations.

[0049] The electron accelerator system includes a shielded enclosure 11, an electron accelerator 12, a cable irradiation platform 13, and an irradiation window 121.

[0050] The cable irradiation operation platform 13 includes at least two cable take-up and take-down devices 131, a cable irradiation flipping mechanism 21, and a shielding door body 14.

[0051] The cable irradiation flipping mechanism 21 includes several guide wheels and at least two flipping wheels.

[0052] The cable irradiation platform 13 is a mobile cable irradiation platform, and the mobile cable irradiation platform also includes a platform base 133;

[0053] The cable irradiation flipping mechanism is mounted on the platform base 133;

[0054] The platform base is equipped with a moving device at its bottom;

[0055] The shielding door body is vertically mounted at the rear end of the platform base;

[0056] The shielding door body 14 and the shielding shell 11 form a first shielding cavity.

[0057] The take-up and release device is used to wind the cable, and the cable on the take-up and release device is connected to the cable irradiation and flipping mechanism.

[0058] The cable irradiation and flipping mechanism guides the cable on the cable take-up and unwinding device to the rear of the shielding door body;

[0059] Specifically, the cable 1311 on the cable take-up and take-down device 131 is guided into the first shielding cavity by the cable irradiation and flipping mechanism.

[0060] The shielding shell 11 has two first shielding bodies 112 on the front side of the rear shell 111, and the shielding door body 14 has two second shielding bodies 141 on the rear side. Both the first and second shielding bodies have wiring holes.

[0061] When the shielding door body and the shielding shell are installed, the first shielding body and the second shielding body form a second shielding cavity.

[0062] A shielding panel 142 is provided at the rear of the shielding door body 14. The shielding panel is located between two second shielding bodies 141 and is parallel to and integrally formed with the shielding door body.

[0063] The second shielding cavity has a first shielding body and a second shielding body on both sides, a shielding panel and the rear shell 111 of the shielding shell 11 on the front and back respectively, and an upper shell of the shielding shell and an electron accelerator on the top.

[0064] The electron beam exit of the electron accelerator (opposite to the irradiation window) is located inside the second shielding cavity. The cable on the take-up and take-up device is guided to the area below the electron beam exit in the second shielding cavity by the cable irradiation flipping mechanism.

[0065] When the platform base moves to the working position, the shielding door body and the shielding shell form a shielding cavity, and the irradiation window is located in the shielding cavity. Specifically, the irradiation window is located in the second shielding cavity.

[0066] The shielding shell 11 has a mounting hole at the front and a shielding protrusion 113 at the edge of the mounting hole. When the shielding door body is installed with the shielding shell, the rear of the shielding door body 14 fits against the front end face 1131 of the shielding protrusion 113.

[0067] In this embodiment, the front end of the shielding door body forms an n-shaped doorway (installation hole), and the shielding door body acts as a "door" that covers the installation hole to form a shielding cavity.

[0068] In this embodiment, "front end" and "front side" refer to the direction from the electron accelerator in the electron accelerator system to the mobile cable irradiation platform.

[0069] The cable irradiation and flipping mechanism 21 is used for cable guidance and cable flipping, and includes several guide wheels 211 and at least two flipping wheels 212.

[0070] The flipping wheel 212 is used to control the irradiation angle of the cable in the irradiation window 121. The angle between the plane where the flipping wheel 212 is located and the electron acceleration direction of the electron accelerator is greater than zero degrees and less than 90 degrees.

[0071] The guide wheel 211 is used to guide the cable onto the flipping wheel and guide the cable into the irradiation window range 121.

[0072] The number of flipping wheels is one less than the number of cables passing through the irradiation window range at the same time.

[0073] In this embodiment, the number of flipping wheels is 2.

[0074] For a cable, the guide wheel guides the cable through the irradiation window and into the second flipping wheel, the guide wheel guides the cable coming out of the second flipping wheel through the irradiation window and into the first flipping wheel, and the guide wheel guides the cable coming out of the first flipping wheel through the irradiation window and out of the cable irradiation flipping mechanism.

[0075] The angle between the plane containing the first flipping wheel and the direction of electron acceleration of the electron accelerator is 30 degrees, and the angle between the plane containing the first flipping wheel and the plane containing the second flipping wheel is 60 degrees.

[0076] This application flips the cable by 120 degrees each time, and makes one cable into three strands that enter the irradiation window. This not only ensures that the cable is evenly irradiated during the irradiation process, solving the defect of low radiation on both sides, but also reduces the irradiation width and realizes a scheme in which the length direction of the irradiation window is the same as the cable transmission direction (existing schemes realize that the length direction of the irradiation window is perpendicular to the cable transmission direction), thereby further reducing the footprint of the equipment.

[0077] In other embodiments, the angle of each flip is adjusted by the number of flipping wheels and the angle relative to the radiation direction. For example, by using 3 flipping wheels and the angle between the plane of the flipping wheels and the electron acceleration direction of the electron accelerator is 45 degrees, it is possible to achieve a 90-degree flip each time and make one cable form four strands to enter the irradiation window.

[0078] Referring to Figures 5 and 6, the guide wheel 211 includes two sets of three-slot guide wheels. Each three-slot guide wheel includes three single-slot guide wheels 2111. The two three-slot guide wheels are at the same height, and the electron acceleration direction of the electron accelerator is located in the plane containing the two three-slot guide wheels. In this embodiment, in one set of three-slot guide wheels, the rotation directions of two adjacent single-slot guide wheels are different.

[0079] Two three-groove guide wheels 2111 are respectively located on both sides of the irradiation window 121, and two single-groove flipping wheels 212 are respectively located on both sides of the two three-groove guide wheels.

[0080] The guide wheel also includes two single-groove guide wheels 2112 and two sets of double-groove guide wheels 2113. Each double-groove guide wheel includes two single-groove guide wheels. In this embodiment, the two single-groove guide wheels in one set of double-groove guide wheels rotate in different directions.

[0081] Two double-groove guide wheels 2113 are respectively located on both sides of two triple-groove guide wheels, and the lowest point of the single-groove guide wheel 2112 and the double-groove guide wheel 2113 is lower than the highest point of the triple-groove guide wheel 2111.

[0082] The groove of the single-groove guide wheel is aligned with one of the grooves of the three-groove guide wheel, and the groove of the double-groove guide wheel is aligned with the other two grooves of the three-groove guide wheel. The single-groove guide wheel and the double-groove guide wheel on one side are both located between the flipping wheel and the three-groove guide wheel on the same side.

[0083] By using single-groove guide wheels, double-groove guide wheels, and triple-groove guide wheels, cables can be adjusted to the same height and then transmitted laterally into the irradiation window.

[0084] The plane containing the single-groove guide wheel forms a 30-degree angle with the electron acceleration direction of the electron accelerator. The preferred angle in this embodiment is 30 degrees.

[0085] The single-groove guide wheel and the double-groove guide wheel are set in different directions, forming a certain angle with the electron acceleration direction of the electron accelerator, which can effectively prevent the cable from rolling.

[0086] The guide wheel also includes two single-groove guide wheels 2114. One guide wheel guides the cable into a double-groove guide wheel, and the other guide wheel guides the output cable of the other double-groove guide wheel to be output from the cable irradiation and flipping mechanism.

[0087] The platform base 133 is equipped with a moving device at its bottom, the shielding door body is vertically disposed at the rear end of the platform base, and the cable rewinding device is disposed at the front side of the shielding door body of the platform base.

[0088] The electron accelerator system also includes two auxiliary shielding doors 15, which are located on the front side of the shielding door body and on both sides of the platform base.

[0089] A wiring gap 16 is provided between the two auxiliary shielding doors, and a wiring gap is provided between the auxiliary shielding doors and the shielding door body.

[0090] Specifically, the cable irradiation flipping mechanism is located outside the second shielding cavity.

[0091] The electron accelerator system also includes a scanning box 17, which is connected to the bottom of the electron accelerator. The scanning box is located in the second shielding cavity and the electron beam outlet is aligned with the cable between the two three-slot guide wheels, i.e., aligned with the irradiation window.

[0092] The platform base is provided with a slide rail at its bottom, and the platform base moves along the slide rail toward the shielding shell.

[0093] The two first shields are located outside the two second shields.

[0094] This invention is applicable to the irradiation of large-diameter cables, enabling the cables to be irradiated uniformly during the irradiation process. By using a guide wheel system configured at a specific angle to rotate the cable, a controllable angle of uniform irradiation is achieved, providing conditions for reducing the size of electron accelerator systems for cables.

[0095] This embodiment can be used in conjunction with a miniaturized electron accelerator to form a self-shielding structure, which provides shielding protection for the cable irradiation flipping mechanism, resulting in better shielding and a longer service life for the cable irradiation flipping mechanism.

[0096] Example 2

[0097] This embodiment has the same technical solution as Embodiment 1, but the reference numerals are different:

[0098] Referring to Figure 7, after the cable is led out from one take-up and release device 131, it passes sequentially through the cable routing gap, cable routing interval, first single-groove guide wheel 301, first double-groove guide wheel 302, first triple-groove guide wheel 303, irradiation window 121, second triple-groove guide wheel 304, second single-groove guide wheel 305, second flipping wheel 306, second double-groove guide wheel 307, second triple-groove guide wheel 304, irradiation window 121, first triple-groove guide wheel 303, first double-groove guide wheel 302, first flipping wheel 308, first single-groove guide wheel 309, first triple-groove guide wheel 303, irradiation window 121, second triple-groove guide wheel 304, second double-groove guide wheel 307, second single-groove guide wheel 310, cable routing gap, and cable routing gap before entering another take-up and release device.

[0099] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A cable irradiation flipping mechanism for use in an electron accelerator system, characterized in that, The cable irradiation turning mechanism includes several guide wheels and at least two turning wheels; the electron accelerator system includes an irradiation window and an electron accelerator. The flipping wheel is used to control the irradiation angle of the cable in the irradiation window. The angle between the plane where the flipping wheel is located and the electron acceleration direction of the electron accelerator is greater than zero degrees and less than 90 degrees. The guide wheel is used to guide the cable onto the flipping wheel and guide the cable into the irradiation window area.

2. The cable irradiation flipping mechanism as described in claim 1, characterized in that, The number of flipping wheels is one less than the number of cables passing through the irradiation window range at the same time.

3. The cable irradiation flipping mechanism as described in claim 1, characterized in that, The number of flipping wheels is 2. For a cable, the guide wheel guides the cable through the irradiation window and into the second flipping wheel, the guide wheel guides the cable coming out of the second flipping wheel through the irradiation window and into the first flipping wheel, and the guide wheel guides the cable coming out of the first flipping wheel through the irradiation window and out of the cable irradiation flipping mechanism. The angle between the plane of the first flipping wheel and the direction of electron acceleration of the electron accelerator is 30 degrees, and the angle between the plane of the first flipping wheel and the plane of the second flipping wheel is 60 degrees.

4. The cable irradiation flipping mechanism as described in claim 3, characterized in that, The guide wheel includes two sets of three-slot guide wheels. Each three-slot guide wheel includes three single-slot guide wheels. The two three-slot guide wheels are at the same height. The electron acceleration direction of the electron accelerator is located in the plane where the two three-slot guide wheels are located. The two three-slot guide wheels are respectively located on both sides of the irradiation window. The two single-slot flipping wheels are respectively located on both sides of the two three-slot guide wheels.

5. The cable irradiation flipping mechanism as described in claim 4, characterized in that, The guide wheel also includes two single-groove guide wheels and two sets of double-groove guide wheels. Each double-groove guide wheel includes two single-groove guide wheels. The two double-groove guide wheels are respectively located on both sides of the two triple-groove guide wheels. The lowest point of the single-groove guide wheel and the double-groove guide wheel is lower than the highest point of the triple-groove guide wheel. The groove of the single-groove guide wheel is aligned with one groove of the triple-groove guide wheel, and the groove of the double-groove guide wheel is aligned with the other two grooves of the triple-groove guide wheel. The single-groove guide wheel and the double-groove guide wheel on one side are both located between the flipping wheel and the triple-groove guide wheel on the same side.

6. The cable irradiation flipping mechanism as described in claim 5, characterized in that, The plane containing the single-groove guide wheel forms a 30-degree angle with the direction of electron acceleration of the electron accelerator.

7. The cable irradiation flipping mechanism as described in claim 5, characterized in that, The guide wheel also includes two single-groove guide wheels. One guide wheel guides the cable into a double-groove guide wheel, and the other guide wheel guides the output cable of the other double-groove guide wheel to be output from the cable irradiation and flipping mechanism.

8. The cable irradiation flipping mechanism as described in claim 1, characterized in that, The electron accelerator system includes a shielded enclosure and a mobile cable irradiation platform. The mobile cable irradiation platform includes a platform base, a shielding door body, and two cable take-up and delivery devices. The cable irradiation flipping mechanism is located on the platform base. The platform base is equipped with a moving device at its bottom; The shielding door body is vertically mounted at the rear end of the platform base; The take-up and release device is used to wind the cable, and the cable on the take-up and release device is connected to the cable irradiation and flipping mechanism. The cable irradiation and flipping mechanism guides the cable on the cable take-up and unwinding device to the rear of the shielding door body; When the platform base moves to the working position, the shielding door body and the shielding shell form a shielding cavity, and the irradiation window is located in the shielding cavity.

9. The cable irradiation flipping mechanism as described in claim 8, characterized in that, The electron accelerator system also includes two auxiliary shielding doors, which are located in front of the shielding door body and on both sides of the platform base. There is a wiring gap between the two auxiliary shielding doors and a wiring gap between the auxiliary shielding doors and the shielding door body.

10. An electron accelerator system, characterized in that, The electron accelerator system includes a cable irradiation flipping mechanism as described in any one of claims 1 to 9.

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