Conveying device for radiation objects of nuclear power plant

Abstract

The utility model discloses a nuclear power plant radiant conveying device. The nuclear power plant radiant conveying device comprises a supporting base. The overturning assembly comprises a supporting frame, a rotating seat and a first driving assembly; the supporting frame is movably arranged on the supporting seat, the rotating seat is arranged on the supporting frame, and the first driving assembly is arranged on the supporting frame and is in driving connection with the rotating seat; the clamping assembly comprises a connecting seat, a clamping structure and a second driving assembly; the connecting base is arranged on the rotating base, the clamping structure is rotationally arranged on the connecting base, and the second driving assembly is arranged on the connecting base and is in driving connection with the clamping structure. When the supporting frame moves to the position below the radiation object clamped by the mechanical arm, the second driving assembly drives the clamping structure to ascend to clamp the radiation object, and when the supporting frame moves to be close to the conveying line, the first driving assembly drives the rotating base to rotate till the clamped radiation object is located over the conveying line; the clamping structure releases the radiation objects so that the radiation objects can be accurately placed at the designated positions of the conveying lines respectively.

Description

Technical Field

[0001] This utility model relates to the technical field of conveying radioactive materials from nuclear power plants, and in particular to a conveying device for radioactive materials from nuclear power plants. Background Technology

[0002] The increasing concentration of radioactive nuclides in some devices within a nuclear power plant has led to a gradual increase in the dose rate levels on the surfaces of some objects and in the rooms where they are located. This increases the radiation dose to maintenance and inspection personnel working or passing by the radiating objects. Furthermore, when some transported objects are heavy, they can be transported using equipment instead of manual handling, thereby reducing the difficulty of the work for the staff and preventing them from being exposed to high doses of radiation.

[0003] In some related conveying devices, such as those comprising robotic arms and multiple conveyor lines, it is difficult to ensure that each radiant object can be accurately placed at its designated position on each conveyor line because the robotic arm cannot guarantee a common grasping and placement strategy. This can easily lead to significant errors when each radiant object is conveyed to its respective conveyor line. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a device for conveying radioactive materials from nuclear power plants.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A device for conveying radioactive materials from a nuclear power plant, the device comprising:

[0007] Support base;

[0008] A flipping assembly includes a support frame, a rotating seat, and a first driving assembly; the support frame is movably disposed on the top surface of the support seat, the rotating seat is disposed on the support frame, and the first driving assembly is disposed on the support frame and drivenly connected to the rotating seat, for driving the rotating seat to rotate to a specified angle;

[0009] A clamping assembly includes a connecting seat, a clamping structure, and a second driving assembly. The connecting seat is disposed on the rotating seat, the clamping structure is rotatably disposed on the end face of the connecting seat, and the second driving assembly is disposed on the connecting seat and drivenly connected to the clamping structure for driving the clamping structure to move up and down.

[0010] In a preferred embodiment of this invention, the rotating seat includes a rotating component and a connecting component; a rotating groove is provided in the support frame, the rotating component is disposed in the rotating groove, the first driving assembly is drivingly connected to the rotating component, and the connecting component is disposed on the rotating component; the connecting seat is disposed on the connecting component.

[0011] As a preferred technical solution of this utility model, the first driving component includes a first motor and a first transmission belt; the first motor is disposed on the support frame, the output shaft of the first motor is provided with a first driving wheel, the connecting shaft of the rotating component is provided with a first driven wheel, and the first transmission belt is wound around the first driving wheel and the first driven wheel.

[0012] As a preferred technical solution of this utility model, the connecting seat has a through clearance opening; the clamping structure is provided with a pushing block, and the second driving component is drivenly connected to the pushing block to drive the pushing block to move through the clearance opening.

[0013] In a preferred embodiment of this invention, the second drive component is a cylinder, and the power output shaft of the cylinder is connected to the push block.

[0014] As a preferred technical solution of this utility model, the clamping structure includes a support block and a first clamp and a second clamp disposed opposite to each other; the first clamp and the second clamp are disposed on the support block, and each of the first clamp and the second clamp includes a pressing part and a driving member, wherein the driving member is drivenly connected to the pressing part.

[0015] As a preferred technical solution of this utility model, an elastic block is provided on one side of each of the pressing parts.

[0016] As a preferred technical solution of this utility model, the bottom of the support block is provided with a second driven wheel; the clamping assembly also includes a second motor and a second transmission belt, the output shaft of the second motor is provided with a second driving wheel, and part of the outer side of the second transmission belt is attached to the second driving wheel and the second driven wheel.

[0017] As a preferred technical solution of this utility model, the top surface of the support block is provided with a plurality of rolling rollers, and a portion of the inner side surface of the second transmission belt is in contact with each of the rolling rollers.

[0018] As a preferred technical solution of this utility model, the conveying device further includes a third driving component, which is drivenly connected to the support frame.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] When the support frame moves to a position close to the underside of the object being gripped by the robotic arm, the second drive assembly drives the gripping structure to move upward until it can hold the object. Then, the second drive assembly drives the gripping structure to move back to its original position. When the support frame moves to a position close to the side of the conveyor line, the first drive assembly drives the rotating seat to rotate the support frame until the gripped object is directly above the conveyor line. Then, the second drive assembly drives the gripping structure to move downward, releasing the object so that each object can be accurately placed at its designated position on the conveyor line. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural diagram of an embodiment of the present utility model.

[0023] Figure 2 This is a structural diagram of the rotating seat according to an embodiment of the present utility model.

[0024] Figure 3 This is a structural diagram of the clamping component according to an embodiment of the present invention.

[0025] Figure 4 yes Figure 3 Another perspective on the structure diagram.

[0026] Figure 5 This is a structural diagram of the drive clamping structure rotating according to an embodiment of the present invention.

[0027] Numbers in the diagram

[0028] 1. Tilting assembly; 11. Support frame; 12. Rotating seat; 121. Rotating component; 122. Connecting component; 13. First drive assembly;

[0029] 2. Clamping assembly; 21. Connecting seat; 22. Clamping structure; 221. First clamping device; 2211. Pressing part; 2212. Driving component; 222. Support block; 223. Second clamping device; 224. Second driven wheel; 225. Second motor; 226. Second transmission belt; 227. Second driving wheel; 228. Rolling roller; 23. Pushing block; 24. Second driving assembly;

[0030] 3. Third driving component. Detailed Implementation

[0031] To make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following describes this application in further detail with reference to the accompanying drawings and embodiments.

[0032] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0033] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or indirectly on that other component.

[0034] When a component is said to be "connected to" another component, it can be directly connected to the other component or indirectly connected to that other component.

[0035] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0037] In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically defined.

[0038] To address the technical problem that existing conveying devices often fail to use a single, universal gripping and placement strategy, making it difficult to accurately place each radioactive material at its designated location on each conveyor line, thus leading to significant errors when the radioactive materials are transported to their respective conveyor lines, this invention provides a conveying device for radioactive materials in nuclear power plants.

[0039] The following describes in detail the specific structure of a nuclear power plant radioactive material conveying device provided by this utility model embodiment. As shown in the accompanying drawings, the specific structure of the conveying device includes a support base, a flipping assembly 1, and a clamping assembly 2.

[0040] It should be understood that the number of conveying devices and conveying lines in this embodiment of the present invention corresponds one-to-one, that is, each conveying device is respectively set on the side of each conveying line, so as to accurately place each radiating object at the designated position of each conveying line.

[0041] This can be understood as referring to tools or supplies used in nuclear power plants, without specifying the exact type.

[0042] The support base is the fundamental structure of the entire conveying device, responsible for bearing the weight of the tilting assembly 1 and the clamping assembly 2. Since the tilting assembly 1 and the clamping assembly 2 are in different positions and postures during operation, the support base must ensure stable support of their weight under various conditions. This prevents tilting or even collapse due to excessive weight, providing a solid foundation for the stable operation of the radioactive material conveying device. After the clamping assembly 2 clamps the radioactive material, the support base indirectly bears its weight through the tilting assembly 1, ensuring stable support during conveying and allowing it to move along the predetermined path and height. This prevents the radioactive material from falling due to unstable support, thus avoiding safety accidents.

[0043] According to the appendix Figure 1 As shown, the flipping assembly 1 includes a support frame 11, a rotating seat 12, and a first drive assembly 13; the support frame 11 is movably disposed on the top surface of the support seat, the rotating seat 12 is disposed on the support frame 11, and the first drive assembly 13 is disposed on the support frame 11 and drivenly connected to the rotating seat 12, for driving the rotating seat 12 to rotate to a specified angle.

[0044] Specifically, to ensure the radioactive material is transported from the robotic arm to the conveyor line, the support frame 11 moves to a position close to the radioactive material being gripped by the robotic arm. The gripping assembly 2 then grips the radioactive material, and the support frame 11 moves to a position close to the conveyor line. Subsequently, the first drive assembly 13 drives the rotating seat 12 to rotate, meaning the rotating seat 12 rotates circumferentially on the support frame 11 until the gripped radioactive material is directly above the conveyor line. Finally, the gripping assembly 2 releases the radioactive material so that it falls onto the conveyor line. If a second radioactive material needs to be transported to the same conveyor line, the support frame 11... The device is then moved to a position close to the bottom of the robotic arm. The first drive assembly 13 drives the rotating seat 12 to rotate until it reaches a position where the gripping assembly 2 can grip the second radiant object (at which point the second radiant object is already gripped by the robotic arm). The robotic arm places the second radiant object into the gripping assembly 2, where it is fixed and held in place. The second radiant object is then transported to the conveyor line in the manner described in the above embodiment. This setup enables continuous and cyclical conveying operations, further improving conveying efficiency. It also meets the requirements for batch conveying of radiant objects and ensures that each radiant object is accurately placed at its designated position on each conveyor line.

[0045] according to Figure 1 As shown, the clamping assembly 2 includes a connecting seat 21, a clamping structure 22, and a second driving assembly 24. The connecting seat 21 is disposed on the rotating seat 12, the clamping structure 22 is rotatably disposed on the end face of the connecting seat 21, and the second driving assembly 24 is disposed on the connecting seat 21 and drivenly connected to the clamping structure 22, for driving the clamping structure 22 to move up and down.

[0046] Specifically, when the support frame 11 moves to a position close to the underside of the radioactive material being gripped by the robotic arm, the second drive assembly 24 drives the gripping structure 22 to move upward until the gripping structure 22 is able to hold the radioactive material. Then, the second drive assembly 24 drives the gripping structure 22 to move back to its original position. When the support frame 11 moves to a position close to the side of the conveyor line, the rotating seat 12 rotates circumferentially on the support frame 11 until the gripped radioactive material is positioned directly above the conveyor line. Then, the second drive assembly 24 drives the gripping structure 22 to move downward, and the gripping structure 22 releases the radioactive material so that it can fall onto the conveyor line. This achieves the function of accurately gripping, transferring, and placing radioactive materials from nuclear power plants onto the conveyor line, ensuring that the radioactive material can be accurately placed at the designated position on the conveyor line.

[0047] according to Figure 2As shown, in some specific embodiments, the rotating seat 12 includes a rotating member 121 and a connecting member 122; a rotating groove is provided in the support frame 11, the rotating member 121 is disposed in the rotating groove, the first driving assembly 13 is drivenly connected to the rotating member 121, and the connecting member 122 is disposed on the rotating member 121; the connecting seat 21 is disposed on the connecting member 122.

[0048] Specifically, the rotating component 121 is disposed in the rotating groove. Under the driving action of the first driving component 13, it can rotate around the axis in the rotating groove, thereby driving the connecting component 122 and the connecting seat 21 disposed on the connecting component 122 to follow. Specifically, the rotating component 121 bears the weight of the connecting component 122, the clamping component 2, and the radiating object being clamped. Under the driving action of the first driving component 13, these components can rotate together with the rotating component 121. In this way, the clamping component 2 can move to different angles and positions, ensuring that the clamping component 2 can accurately and quickly reach the designated position, and achieving efficient and precise clamping of the radiating object.

[0049] In a further embodiment, the first drive assembly 13 of this utility model includes a first motor and a first transmission belt (not shown in the figure); the first motor is disposed on the support frame 11, the output shaft of the first motor is provided with a first drive wheel, the connecting shaft of the rotating member 121 is provided with a first driven wheel, and the first transmission belt is wound around the first drive wheel and the first driven wheel.

[0050] Specifically, a first drive wheel is provided on the output shaft of the first motor. When the first motor drives the output shaft to rotate, it can directly drive the first drive wheel to rotate synchronously. Since the first transmission belt is wrapped around the outside of the first drive wheel and the first driven wheel, when the first drive wheel rotates, due to the friction between the first transmission belt and the first drive wheel, the first drive wheel can drive the first transmission belt to move through the friction. At this time, the first transmission belt plays the role of transmitting power and motion in this process, thereby realizing the transmission of the rotation of the first drive wheel to the first driven wheel. Since the first driven wheel is provided on the connecting shaft of the rotating member 121, the first driven wheel is driven to rotate through the movement of the first transmission belt. Specifically, since the first driven wheel is fixedly connected to the connecting shaft, when the first driven wheel rotates, it can drive the connecting shaft to rotate accordingly, thereby driving the rotating member 121 to rotate around the axis in the rotating groove, realizing the precise driving of the rotating member 121, so that it can rotate to a specified angle.

[0051] It should be understood that, because the first transmission belt has a certain degree of elasticity and flexibility, it can buffer the impact force during the power transmission process to a certain extent, and at the same time, it can also realize power transmission over long distances.

[0052] according to Figure 4As shown, in some specific embodiments, the connecting seat 21 has a through clearance opening; the clamping structure 22 is provided with a push block 23, and the second driving component 24 is drivenly connected to the push block 23 to drive the push block 23 to move through the clearance opening.

[0053] Specifically, when it is necessary to grasp or release a radioactive object, the second drive component 24 is used to drive the push block 23 to move up or down. The push block 23 passes through the clearance opening to push the grasping structure 22 to rise or fall until the grasping structure 22 reaches the position where it can grasp or release the radioactive object. The push block 23 moves through the clearance opening so that the grasping structure 22 can move up or down stably.

[0054] In the above embodiment, the second drive component 24 is a cylinder, which is connected to the push block 23 through the power output shaft of the cylinder.

[0055] according to Figure 3 As shown, in some specific embodiments, the clamping structure 22 includes a support block 222 and a first clamp 221 and a second clamp 223 disposed opposite to each other; the first clamp 221 and the second clamp 223 are disposed on the support block 222, and each of the first clamp 221 and the second clamp 223 includes a pressing part 2211 and a driving member 2212, and the driving member 2212 is drivenly connected to the pressing part 2211.

[0056] Specifically, when the driving member 2212 of the first gripper 221 pushes the pressing part 2211 to move along the lowering of the radiating object, the pressing part 2211 moves closer to the radiating object. For example, the first gripper 221 is located on one side of the radiating object. Under the action of the driving member 2212, the pressing part 2211 gradually approaches the radiating object until the pressing part 2211 can contact the outer surface of the radiating object. At the same time, the second gripper 223, which is arranged opposite to the first gripper 221, moves the pressing part 2211 towards the radiating object. Since the second gripper 223 is located on the other side of the radiating object, the pressing part 2211 of the second gripper 223 moves relative to the pressing part 2211 of the first gripper 221. When the two pressing parts 2211 contact the radiating object at the same time, pressure continues to be applied so that the radiating object can be tightly clamped. When releasing a radioactive material, each drive member 2212 pulls its corresponding pressing part 2211 to move away from the radioactive material. Once each pressing part 2211 separates from the radioactive material, the radioactive material can be released.

[0057] It is understood that the drive component 2212 in the above embodiment is a cylinder.

[0058] In a further embodiment, an elastic block is provided on one side of each pressing part 2211.

[0059] Specifically, during the process of gripping and moving the radiating object, the elastic blocks of each pressing part 2211 are used to absorb and dissipate a portion of the mechanical vibration and impact energy, thereby reducing the noise and vibration generated when gripping the radiating object. Moreover, the elastic blocks can act as a buffer medium during gripping, thereby preventing the surface of the radiating object from being scratched or indented when the pressing part 2211 comes into direct contact with the radiating object.

[0060] according to Figure 5 As shown, specifically, the bottom of the support block 222 is provided with a second driven wheel 224; the clamping assembly 2 also includes a second motor 225 and a second transmission belt 226, the output shaft of the second motor 225 is provided with a second driving wheel 227, and part of the outer side of the second transmission belt 226 is attached to the second driving wheel 227 and the second driven wheel 224.

[0061] Specifically, the output shaft of the second motor 225 is equipped with a second drive wheel 227. When the output shaft of the second motor 225 rotates, it can directly drive the second drive wheel 227 to rotate synchronously. The second transmission belt 226 is wound around the second drive wheel 227. When the second drive wheel 227 rotates, it drives the second transmission belt 226 to move through the friction between the drive wheel 227 and the second drive wheel 226. Due to the circumferential motion of the second drive wheel 227, the second transmission belt 226 moves linearly along the circumferential direction of the drive wheel 227. Since part of the outer side of the second transmission belt 226 is in contact with the second driven wheel 224, the second transmission belt 226 transmits friction to the second driven wheel 224 during its linear motion, causing the second driven wheel 224 to start rotating. The second driven wheel 224 is located at the bottom of the support block 222 and the rotation center of the second driven wheel 224 coincides with the rotation center of the support block 222. Therefore, when the second driven wheel 224 rotates, it drives the support block 222 to rotate as well, so as to realize the adjustment of the first gripper 221 and the second gripper located on the support block 222 at different angles and positions.

[0062] according to Figure 5 As shown, in a further embodiment, the top surface of the support block 222 is provided with a plurality of rolling rollers 228, and a portion of the inner side surface of the second transmission belt 226 is attached to each rolling roller 228.

[0063] Specifically, multiple rolling rollers 228 are used to precisely guide and position the second transmission belt 226, that is, to limit the movement trajectory of the second transmission belt 226, to ensure that it remains in the correct position during transmission, and to avoid phenomena such as deviation or slippage of the second transmission belt 226, thus ensuring the stability and reliability of power transmission.

[0064] according to Figure 1As shown, in some specific embodiments, the conveying device further includes a third drive assembly 3, which is drivenly connected to the support frame 11.

[0065] It can be understood that the third drive assembly 3 includes a motor, a lead screw, and a nut; when the motor applies power, the lead screw starts to rotate. Since the nut is sleeved on the lead screw and connected to the support frame 11, through the threaded engagement between the lead screw and the nut, when the motor drives the lead screw to rotate, the nut can move linearly along the axis of the lead screw, thereby driving the support frame 11 to move along the axis of the lead screw. This arrangement allows the support frame 11 to move closer to the underside of the radiating object gripped by the robotic arm or to the side of the conveyor line.

[0066] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A device for transporting radioactive material in a nuclear power plant, characterized in that, The conveying device comprises: a support base; a turnover assembly, which comprises a support frame, a rotating base and a first driving assembly; the support frame is movably arranged on the top surface of the support base, the rotating base is arranged on the support frame, and the first driving assembly is arranged on the support frame and is drivingly connected with the rotating base, and is used for driving the rotating base to rotate to a specified angle; a clamping assembly, which comprises a connecting base, a clamping structure and a second driving assembly; the connecting base is arranged on the rotating base, the clamping structure is rotatably arranged on the end surface of the connecting base, and the second driving assembly is arranged on the connecting base and is drivingly connected with the clamping structure, and is used for driving the clamping structure to move up and down.

2. The nuclear power plant radiation material transport apparatus of claim 1, wherein, The rotating base comprises a rotating piece and a connecting piece; the rotating groove is arranged on the support frame, the rotating piece is arranged in the rotating groove, the first driving assembly is drivingly connected with the rotating piece, and the connecting piece is arranged on the rotating piece; and the connecting base is arranged on the connecting piece.

3. The nuclear power plant radiation material transport apparatus of claim 2, wherein, The first driving assembly comprises a first motor and a first transmission belt; the first motor is arranged on the support frame, the output shaft of the first motor is provided with a first driving wheel, the connecting shaft of the rotating piece is provided with a first driven wheel, and the first transmission belt is wound around the first driving wheel and the first driven wheel.

4. The nuclear power plant radiation material transport apparatus of claim 1, wherein, The connecting base is provided with an avoiding opening; the clamping structure is provided with a pushing block, the second driving assembly is drivingly connected with the pushing block, and is used for driving the pushing block to move through the avoiding opening.

5. The nuclear power plant radiation material transport apparatus of claim 4, wherein, The second driving assembly is a pneumatic cylinder, and the power output shaft of the pneumatic cylinder is connected with the pushing block.

6. The nuclear power plant radiation material transport apparatus of claim 1, wherein, The clamping structure comprises a support block and oppositely arranged first and second clamping devices; the first and second clamping devices are arranged on the support block, and each of the first and second clamping devices comprises a pressing part and a driving piece, and the driving piece is drivingly connected with the pressing part.

7. The nuclear power plant radiation material transport apparatus of claim 6, wherein, One side of each of the pressing parts is provided with an elastic block.

8. The nuclear power plant radiation material transport apparatus of claim 6, wherein, The bottom of the support block is provided with a second driven wheel; the clamping assembly further comprises a second motor and a second transmission belt, the output shaft of the second motor is provided with a second driving wheel, and part of the outer side surface of the second transmission belt is attached to the second driving wheel and the second driven wheel.

9. The nuclear power plant radiation material transport apparatus of claim 8, wherein, The top surface of the support block is provided with a plurality of rolling rods, and part of the inner side surface of the second transmission belt is attached to each of the rolling rods.

10. The nuclear power plant radiation material transport apparatus according to any one of claims 1-9, wherein, The conveying device further comprises a third driving assembly, which is drivingly connected with the support frame.

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