Rotary anti-radiation shielding device and robot

Abstract

The utility model discloses a rotary anti-radiation shielding device and a robot, and relates to the technical field of nuclear engineering, the rotary anti-radiation shielding device comprises a support table, a first shielding case and a second shielding case, the first shielding case and the second shielding case are both installed on the support table, the first shielding case and the second shielding case rotate around the central axis of the supporting table and are opposite in rotation direction, and the distance from the second shielding case to the central axis is larger than the distance from the first shielding case to the central axis. The robot comprises the rotary anti-radiation shielding device. The rotary anti-radiation shielding device and the robot solve the technical problems that in the prior art, an outer shielding layer of a nuclear engineering robot is too heavy, and the shielding strength is fixed, and the shielding strength can be adjusted according to the radiation quantity.

Description

Technical Field

[0001] This utility model relates to the field of nuclear engineering technology, specifically to a rotating radiation shielding device and a robot. Background Technology

[0002] In nuclear engineering and radioactive environments, robots are often used to perform high-radiation tasks in order to reduce the impact of radiation on personnel. However, prolonged radiation can not only affect human health but also damage the materials and structure of robots, thereby affecting their service life and reliability. In the field of nuclear engineering, in order to solve the problem of radiation damage to robots in high-radiation environments, the conventional approach is to use a uniform lead shielding layer to reduce the impact of radiation on the internal structure and electronic components by uniformly setting lead shielding layers on the outside of the robot. However, this approach has the following drawbacks: (1) Excessive weight: The uniform distribution of lead shielding layers increases the overall weight of the robot, affecting its mobility and endurance; (2) High material consumption: The uniform covering method requires a large amount of lead material, which is costly and may cause resource waste in some scenarios; (3) Lack of targeted protection: The current solution cannot dynamically adjust the shielding direction, resulting in insufficient protection in some areas or material waste; (4) Fixed shielding strength, which cannot be adjusted according to the actual situation. Utility Model Content

[0003] The purpose of this invention is to solve the technical problems of excessive weight of the outer shielding layer and fixed shielding strength in the existing technology of nuclear engineering robots, and to provide the following technical solution:

[0004] A rotating radiation shielding device includes a support platform, a first shielding cover, and a second shielding cover. Both the first and second shielding covers are mounted on the support platform. The first and second shielding covers rotate around the central axis of the support platform in opposite directions. The distance from the second shielding cover to the central axis is greater than the distance from the first shielding cover to the central axis.

[0005] The first shielding cover includes a first wall panel and a first top panel, and the second shielding cover includes a second wall panel and a second top panel; both the first wall panel and the second wall panel are arc-shaped, and both the first top panel and the second top panel are fan-shaped; the bottom of the first wall panel is slidably connected to the support platform, and the top of the first wall panel is fixedly connected to the arc-shaped edge of the first top panel; the bottom of the second wall panel is slidably connected to the support platform, and the top of the second wall panel is fixedly connected to the arc-shaped edge of the second top panel.

[0006] Preferably, the curvature of the first wall panel and the curvature of the second wall panel are both 100° to 140°.

[0007] The support platform is provided with a first slide rail and a second slide rail. The bottom of the first shielding cover is provided with a first sliding part that is adapted to the first slide rail, and the first sliding part is slidably connected to the first slide rail. The bottom of the second shielding cover is provided with a second sliding part that is adapted to the second slide rail, and the second sliding part is slidably connected to the second slide rail.

[0008] Preferably, both the first slide and the second slide are groove structures, and both the first sliding part and the second sliding part are pulley structures that are adapted to and slidably connected to the groove structure.

[0009] A rotating radiation shielding device further includes a first support member and a second support member, wherein the first support member is used to support a first shielding cover and the second support member is used to support the second support member.

[0010] A rotating radiation shielding device further includes multiple radiation monitors, which are evenly installed on the support platform, and each radiation monitor is located on the outer periphery of the first shield and the second shield.

[0011] A robot comprising a rotary radiation shielding device according to any of the above embodiments.

[0012] A robot further includes a drive mechanism, a control box, and a robotic arm mounted on the control box; both the control box and the drive mechanism are mounted on the support platform, and the drive mechanism is used to drive the first shield and the second shield to rotate.

[0013] Furthermore, the upper surface of the control box is provided with a third slide rail and a fourth slide rail. One end of the first support member is fixedly connected to the first top plate, and the other end is slidably connected to the third slide rail. One end of the second support member is fixedly connected to the second top plate, and the other end is slidably connected to the fourth slide rail.

[0014] The driving mechanism includes a first gear, a second gear, a first sprocket, a second sprocket, and a drive motor. The first gear is fixedly connected to the upper surface of the first top plate, and the second gear is fixedly connected to the lower surface of the second top plate. The first gear and the second gear mesh with each other. The first sprocket is fixedly connected to the lower surface of the first top plate, and the second sprocket is fixedly connected to the output end of the drive motor. The first sprocket and the second sprocket are connected by a chain drive.

[0015] Multiple casters are installed beneath the support platform.

[0016] The drive motor and radiation monitor are described. Each moving wheel and robotic arm is connected to the control box.

[0017] This utility model has the following advantages:

[0018] (1) Through the rotation design of the first shield and the second shield, the shielding device can be adjusted in real time according to the radiation intensity. This dynamic adaptive radiation protection greatly improves the shielding effect through the dynamic adjustment function, and can provide the most effective protection for core components in different radiation intensity environments.

[0019] (2) The two arc-shaped radiation shielding panels of the first and second shields can overlap by rotation in high-radiation areas to form a thickened protective layer, effectively enhancing the shielding capability against radiation. In low-radiation areas, the shields can be separated to provide a larger coverage angle and ensure basic protection.

[0020] (3) The control box can monitor the radiation of the external environment in real time through the radiation monitor, and then adjust the thickness of the shielding cover in real time to ensure the continuity and accuracy of the protection effect.

[0021] (4) Both the top of the first shield and the top of the second shield are equipped with top plates. This design shields the radiation risk at the top of the core component, so that the shielding protection device formed by the first shield and the second shield can also provide comprehensive radiation protection. At the same time, the first top plate and the second top plate will also overlap due to rotation, further improving the protection effect in a high radiation environment.

[0022] (5) The shielding device of this utility model has two open shielding covers instead of a full-coverage design, which reduces the weight of the shielding device and saves materials.

[0023] (6) The robot provided by this utility model can automatically control the robot to move in 360 degrees through the moving wheels set at the bottom. When combined with the use of the shielding device, it can achieve radiation shielding of the robot. At the same time, it can also provide high-intensity radiation protection by adjusting the overlap of the two shielding covers.

[0024] (7) The robot provided by this utility model can achieve automated operation, reduce human intervention, and improve the system's response speed and protection efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a rotating radiation shielding device.

[0026] Figure 2 This is a schematic diagram of the robot's structure;

[0027] Figure 3 This is a top view of the robot.

[0028] In the diagram: 1. Support platform, 11. First slide rail, 12. Second slide rail, 13. First sliding part, 14. Second sliding part, 2. First shielding cover, 21. First wall panel, 22. First top plate, 3. Second shielding cover, 31. Second wall panel, 32. Second top plate, 4. First support member, 5. Second support member, 6. Radiation monitor, 7. Drive mechanism, 71. First gear, 72. Second gear, 73. First sprocket, 74. Second sprocket, 75. Drive motor, 76. Chain, 8. Control box, 81. Third slide rail, 82. Fourth slide rail, 9. Robotic arm, 10. Moving wheel. Detailed Implementation

[0029] 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.

[0030] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] A rotating radiation shielding device includes a support platform 1, a first shielding cover 2 and a second shielding cover 3. The first shielding cover 2 and the second shielding cover 3 are both mounted on the support platform 1. The first shielding cover 2 and the second shielding cover 3 rotate around the central axis of the support platform 1 in opposite directions. The distance from the inner wall of the second shielding cover 3 to the central axis is greater than the distance from the outer wall of the first shielding cover 2 to the central axis. Both the first shielding cover 2 and the second shielding cover 3 are used to shield nuclear radiation. In a high-intensity radiation environment, since both the first shielding cover 2 and the second shielding cover 3 rotate around the central axis of the support platform 1 in opposite directions, this design allows the first shielding cover 2 and the second shielding cover 3 to overlap when they rotate relative to each other. This overlap increases the radiation intensity that the shielding device can protect against. At this time, the shielding area becomes smaller, but the shielding strength increases, enabling the shielding device to provide protection in a high-intensity radiation environment. In a low-intensity radiation environment, both the first shielding cover 2 and the second shielding cover 3 move away from each other until they no longer overlap. At this time, the shielding area increases, but the shielding strength decreases.

[0035] The first shielding cover 2 includes a first wall panel 21 and a first top plate 22, and the second shielding cover 3 includes a second wall panel 31 and a second top plate 32. Both the first wall panel 21 and the second wall panel 31 are arc-shaped, and both the first top plate 22 and the second top plate 32 are fan-shaped. The bottom of the first wall panel 21 is slidably connected to the support platform 1, and its top is fixedly connected to the arc-shaped edge of the first top plate 22. Similarly, the bottom of the second wall panel 31 is slidably connected to the support platform 1, and its top is fixedly connected to the arc-shaped edge of the second top plate 32. Both the first shielding cover 2 and the second shielding cover 3 have L-shaped cross-sections. The first top plate 22 and the second top plate 32 provide radiation shielding from above, resulting in better shielding performance. The arc-shaped design of the first wall panel 21 and the second wall panel 31 allows for rotation of the shielding cover.

[0036] Preferably, the curvature of both the first wall panel 21 and the second wall panel 31 is between 100° and 140°. More preferably, the curvature of both the first wall panel 21 and the second wall panel 31 is 120°. With the curvature of the first wall panel 21 and the second wall panel 31 within the range of 100° to 140°, the two maximum shielding angles are between 200° and 280°, and the minimum shielding angle is between 100° and 140° when they completely overlap. This ensures radiation shielding for the entire robot during automatic movement while also providing some space for the robotic arm 9 to extend beyond the shielded area to perform mechanical operations.

[0037] The support platform 1 is provided with a first slide rail 11 and a second slide rail 12. The bottom of the first shielding cover 2 is provided with a first sliding part 13 adapted to the first slide rail 11, and the first sliding part 13 is slidably connected to the first slide rail 11. The bottom of the second shielding cover 3 is provided with a second sliding part 14 adapted to the second slide rail 12, and the second sliding part 14 is slidably connected to the second slide rail 12. The first slide rail 11 limits the movement trajectory of the first shielding cover 2, and the second slide rail 12 limits the movement trajectory of the second shielding cover 3. This allows the first shielding cover 2 to rotate around the central axis of the support platform 1 on the first slide rail 11, and the second shielding cover 3 to rotate on the second slide rail 12, with the first slide rail 11 limiting the movement trajectory of the first shielding cover 2.

[0038] Furthermore, both the first slide rail 11 and the second slide rail 12 are groove structures, and both the first sliding part 13 and the second sliding part 14 are pulley structures that are adapted to and slidably connected to the groove structure.

[0039] A rotating radiation shielding device further includes a first support member 4 and a second support member 5, wherein the first support member 4 is used to support a first shielding cover 2, and the second support member 5 is used to support the second support member 5.

[0040] In one embodiment, one end of the first support member 4 is connected to the top of the first shield 2, and the other end can be slidably connected to the support platform 1 to support the rotation of the first shield 2 on the support platform 1; similarly, one end of the second support member 5 is connected to the top of the second shield 3, and the other end is also slidably connected to the support platform 1 to support the rotation of the second shield 3 on the support platform 1.

[0041] A rotary radiation shielding device further includes multiple radiation monitors 6, which are evenly mounted on the support platform 1, with each monitor 6 located on the outer periphery of a first shielding cover 2 and a second shielding cover 3. The radiation monitors 6 are used to detect the radiation intensity of the operating environment. By using multiple radiation monitors 6, radiation intensity can be detected from multiple directions. Furthermore, the radiation monitors 6 can also be positioned on the inner walls of the first shielding cover 2 and the second shielding cover 3 to detect the radiation values ​​or shielding effectiveness of the first shielding cover 2 and the second shielding cover 3.

[0042] A robot includes a rotating radiation shielding device according to any of the above embodiments. Compared with the prior art, the robot equipped with the above rotating radiation shielding device provides all-round radiation protection, reduces weight, and allows for adjustment of the protection intensity.

[0043] A robot further includes a drive mechanism 7, a control box 8, and a robotic arm 9 mounted on the control box 8. Both the control box 8 and the drive mechanism 7 are mounted on the support platform 1. The drive mechanism 7 drives the first shielding cover 2 and the second shielding cover 3 to rotate. The robotic arm 9 is used for operation, maintenance, and inspection. The control box 8 controls the robotic arm 9, drive motor 75, and all other components requiring operation and control. Furthermore, the drive mechanism 7 and the robotic arm 9 are both located in areas not shielded by the shielding device to prevent the drive mechanism 7 and the robotic arm 9 from interfering with the movement of the first shielding cover 2 and the second shielding cover.

[0044] In this embodiment, the upper surface of the control box 8 is provided with a third slide rail 81 and a fourth slide rail 82. One end of the first support member 4 is fixedly connected to the first top plate 22, and the other end is slidably connected to the third slide rail 81. One end of the second support member 5 is fixedly connected to the second top plate 32, and the other end is slidably connected to the fourth slide rail 82.

[0045] The drive mechanism 7 includes a first gear 71, a second gear 72, a first sprocket 73, a second sprocket 74, and a drive motor 75. The first gear 71 is fixedly connected to the upper surface of the first top plate, and the second gear 72 is fixedly connected to the lower surface of the second top plate 32. The first gear 71 and the second gear 72 mesh. The first sprocket 73 is fixedly connected to the lower surface of the first top plate, and the second sprocket 74 is fixedly connected to the output end of the drive motor 75. The first sprocket 73 and the second sprocket 74 are connected by a chain 76. In a high-radiation environment, the rotation of the output of the drive motor 75 drives the rotation of the second sprocket 74. The second sprocket 74 drives the first sprocket 73 to rotate via the chain 76. Since the first sprocket 73 is fixedly connected to the first shielding cover 2, its rotation drives the rotation of the first shielding cover 2. Since the first shielding cover 2 is fixedly connected to the first gear 71, its rotation drives the rotation of the first gear 71. Since the first gear 71 meshes with the second gear 72, its rotation drives the rotation of the second gear 72, and the first gear 71 and the second gear 72 rotate in opposite directions. Since the second gear 72 is fixedly connected to the second shielding cover 3, its rotation drives the rotation of the second shielding cover 3, thus achieving the overlapping of the first shielding cover 2 and the second shielding cover 3. In a low-radiation environment, the drive motor 75 rotates in the opposite direction, causing the overlapping first shielding cover 2 and the second shielding cover 3 to rotate in the opposite direction until they no longer overlap.

[0046] Multiple casters 10 are installed below the support platform 1. The casters 10 drive the robot to move.

[0047] The drive motor 75, radiation monitor 6, each moving wheel 10 and robotic arm 9 are all connected to the control box 8.

[0048] The working principle of this utility model is as follows:

[0049] The control box 8 controls the movement of the moving wheels 10, enabling the robot to begin moving. During this movement, multiple radiation detectors monitor the radiation levels in the operating environment. It should be noted that during movement, the moving wheels 10 are adjusted to ensure the shielding mechanism faces the radiation source, maximizing radiation shielding. When the radiation detector detects a high level of radiation, and the first shield 2 and the second shield 3 are not overlapping, the drive motor 75 is activated. The drive motor 75 starts operating, and the rotation of the output end of the drive motor 75 drives the second sprocket 74 to rotate. The second sprocket 74 drives the first sprocket 73 to rotate via the chain 76. Since the first sprocket 73 is fixedly connected to the first shield 2, the rotation of the first sprocket 73 drives the rotation of the first shield 2. Since the first shield 2 is fixedly connected to the first gear 71, the rotation of the first shield 2 drives the rotation of the first gear 71. Since the first gear 71 meshes with the second gear 72, the rotation of the first gear 71 drives the rotation of the second gear 72, and the first gear 71 and the second gear 72 rotate in opposite directions. Since the second gear 72 is fixedly connected to the second shield 3, the rotation of the second gear 72 drives the rotation of the second shield 3. This achieves the overlapping of the first shield 2 and the second shield 3, realizing double-layer shielding to block high levels of radiation. When the radiation detector detects a low radiation level, and the first shield 2 and the second shield 3 are overlapping, the drive motor 75 is activated to rotate in the opposite direction. At this time, the first shield 2 and the second shield 3 move away from each other until their edges are close to separating. At this point, the shielding area of ​​the first shield 2 and the second shield 3 increases.

[0050] When the robot moves to the target area that needs to be inspected, the movement wheel 10 is controlled to move so that the unshielded area of ​​the robot faces the area to be inspected, that is, the robot arm 9 faces the area to be inspected, and the robot arm 9 is operated remotely to carry out the repair.

[0051] 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 rotating radiation shielding device, characterized by, It includes a support platform (1), a first shield (2) and a second shield (3). The first shield (2) and the second shield (3) are both installed on the support platform (1). The first shield (2) and the second shield (3) rotate around the central axis of the support platform (1) in opposite directions. The distance from the second shield (3) to the central axis is greater than the distance from the first shield (2) to the central axis.

2. A rotating radiation shielding device as claimed in claim 1, characterized in that The first shielding cover (2) includes a first wall panel (21) and a first top panel (22), and the second shielding cover (3) includes a second wall panel (31) and a second top panel (32); the first wall panel (21) and the second wall panel (31) are both arc-shaped, and the first top panel (22) and the second top panel (32) are both fan-shaped; the bottom of the first wall panel (21) is slidably connected to the support platform (1), and the top is fixedly connected to the arc-shaped edge of the first top panel (22); the bottom of the second wall panel (31) is slidably connected to the support platform (1), and the top is fixedly connected to the arc-shaped edge of the second top panel (32).

3. A rotating radiation shielding device as claimed in claim 2, characterized in that The curvature of the first wall panel (21) and the curvature of the second wall panel (31) are both 100° to 140°.

4. A rotating radiation shielding device as claimed in claim 1, characterized in that The support platform (1) is provided with a first slide rail (11) and a second slide rail (12). The bottom of the first shield (2) is provided with a first sliding part (13) that is adapted to the first slide rail (11). The first sliding part (13) is slidably connected to the first slide rail (11). The bottom of the second shield (3) is provided with a second sliding part (14) that is adapted to the second slide rail (12). The second sliding part (14) is slidably connected to the second slide rail (12).

5. A rotating radiation shielding device as claimed in claim 2, characterized in that It also includes a first support member (4) and a second support member (5), the first support member (4) being used to support the first shielding cover (2) and the second support member (5) being used to support the second support member (5).

6. A rotating radiation shielding device as claimed in claim 2, characterized in that It also includes multiple radiation monitors (6), which are evenly installed on the support platform (1), and each radiation monitor (6) is located on the outer periphery of the first shield (2) and the second shield (3).

7. A robot, characterized in that Includes any one of the rotary radiation shielding devices described in claims 2-6.

8. The robot of claim 7, wherein, It also includes a drive mechanism (7), a control box (8), and a robotic arm (9) mounted on the control box (8); the control box (8) and the drive mechanism (7) are both mounted on the support platform (1), and the drive mechanism (7) is used to drive the first shield (2) and the second shield (3) to rotate.

9. The robot of claim 8, wherein, The drive mechanism (7) includes a first gear (71), a second gear (72), a first sprocket (73), a second sprocket (74), and a drive motor (75). The first gear (71) is fixedly connected to the upper surface of the first top plate, and the second gear (72) is fixedly connected to the lower surface of the second top plate (32). The first gear (71) and the second gear (72) mesh. The first sprocket (73) is fixedly connected to the lower surface of the first top plate, and the second sprocket (74) is fixedly connected to the output end of the drive motor (75). The first sprocket (73) and the second sprocket (74) are connected by a chain (76).

10. The robot of claim 9, wherein, Multiple casters (10) are installed below the support platform (1).

Images