A material distribution device and system for radioactive materials

Abstract

The present invention provides a material distribution device and system for radioactive materials. Among them, the material distribution device includes: a base; at least one support assembly, at least one of the support assemblies is arranged on the base and moves along the x-axis direction on the base; a sub-packaging assembly, the sub-packaging assembly is vertically arranged on one side of the support assembly and is movably connected to the support assembly, and the sub-packaging assembly moves along the y-axis direction on the support assembly; a material receiving assembly, the material receiving assembly is fixedly connected to the base and is used to receive the radioactive materials sub-packaged by the sub-packaging assembly, so as to realize the automation of radioactive material sub-packaging and improve the accuracy and safety of radioactive material sub-packaging.

Description

Technical Field

[0001] The present invention relates to the technical field of material sub-packaging, and particularly to a material dividing device and system for radioactive materials. Background Art

[0002] It has always been an essential step in the production of radioactive materials to sub-package radioactive materials into quantitative containers according to a certain mass. The problem of high radiation exposure dose caused by manual material division in the past has become a difficult problem to be solved urgently. Due to the extremely strong radioactivity of the materials, the research and development of automatic sub-packaging technology are greatly restricted. On the one hand, certain requirements are put forward for the material of the device; on the other hand, a higher requirement is put forward for the process of the device to achieve the sub-packaging process of materials in a fully automatic and lossless manner. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a material dividing device and system for radioactive materials to improve the accuracy and safety of radioactive material sub-packaging.

[0004] To solve the above technical problem, an embodiment of the present invention provides a material dividing device for radioactive materials, including:

[0005] A base;

[0006] At least one support component, at least one of the support components is arranged on the base and moves along the x-axis direction on the base;

[0007] A sub-packaging component, the sub-packaging component is vertically arranged on one side of the support component and is movably connected to the support component, and the sub-packaging component moves along the y-axis direction on the support component;

[0008] A material receiving component, the material receiving component is fixedly connected to the base and is used for receiving the radioactive materials sub-packaged by the sub-packaging component.

[0009] Optionally, at least one support component includes:

[0010] A first sub-support component; the first support component is fixed on the base, and a first driving motor is arranged on the first support component;

[0011] A second support component; the second support component is vertically arranged on the first support component and is movably connected to the first support component; a second driving motor is arranged on the second support component; when dividing materials, the first driving motor drives the second support component to move along the x-axis direction on the first support component, and the second driving motor drives the sub-packaging component to move along the y-axis direction on the second support component.

[0012] Optionally, the sub-packaging component includes:

[0013] a subassembly assembly mounting seat, the subassembly assembly mounting seat being fixedly connected to the second support assembly, and the subassembly assembly mounting seat being provided with a third drive motor;

[0014] A filling funnel; one side of the filling funnel is fixedly connected to one side of the filling assembly mounting base, and the filling funnel is driven to rotate on the second supporting assembly by the third driving motor;

[0015] Adapter assembly; one end of the adapter assembly is fixedly connected to one end of the filling funnel;

[0016] The hub drive assembly is fixed to the other side of the filling funnel.

[0017] Optionally, the packing funnel includes:

[0018] A funnel base having a cavity structure; a discharge port is provided at a first end of the funnel base, a second end of the funnel base is fixedly connected to the adapter assembly, and a feed port is provided at the second end of the funnel base;

[0019] The sub-packaging rotating shaft is arranged on one side of the funnel base and is movably connected to the sub-packaging component mounting seat.

[0020] Optionally, the hub drive assembly includes:

[0021] a rotating hub base, the rotating hub base being fixed on the other side of the funnel base;

[0022] A dispensing rotor, one end of which is disposed in the cavity structure of the funnel base, and the other end of which extends out of the cavity structure and passes through the hub base;

[0023] A driving mechanism, wherein the driving mechanism is fixed to the hub base, one end of the driving mechanism contacts the other end of the sub-assembly rotor and drives the sub-assembly rotor to rotate;

[0024] A position detection sensor is fixed on the rotating hub base.

[0025] Optionally, the packaging rotor includes:

[0026] a first rotating shaft, the first rotating shaft being disposed in the cavity structure of the funnel base;

[0027] a second rotating shaft, one end of which is fixedly connected to the first rotating shaft and the other end of which passes through the rotating hub base;

[0028] A sheave is movably connected to the second end of the rotating shaft and contacts the driving mechanism.

[0029] Optionally, the driving mechanism includes:

[0030] a sheave fixedly connected to the second end of the rotating shaft of the subassembly rotor;

[0031] A thumbwheel, the thumbwheel being fixedly connected to the base via a bearing seat, one end of the thumbwheel being in contact with the sheave of the sub-assembly rotor;

[0032] A fourth drive motor is fixed on the hub base, and the fourth drive motor is electrically connected to the thumbwheel and drives the thumbwheel to rotate.

[0033] Optionally, the adapter assembly includes:

[0034] A transfer cylinder, which is a stepped cylindrical cylinder and has one end fixedly connected to the second end of the filling funnel;

[0035] A guide sleeve, which is sleeved on the adapter tube and movably connected to the adapter tube;

[0036] The sliding sleeve is arranged below the guide sleeve and is sleeved on the adapter cylinder, and one end of the sliding sleeve is elastically connected to the second end of the filling funnel.

[0037] Optionally, the material receiving assembly includes:

[0038] A weighing platform, the weighing platform is fixed on the base and a weight sensor is provided on the weighing platform;

[0039] A material receiving container is placed on the weighing platform.

[0040] An embodiment of the present invention further provides a radioactive material dispensing system, comprising the radioactive material dispensing device as described above, and further comprising:

[0041] A controller is electrically connected to the drive motor and sensor provided on the material distribution device, and is used to control the drive motor to drive the support component to move along the x-axis direction on the base, and the packaging component to move along the y-axis direction and rotate on the support component according to the received sensor signal.

[0042] The above solution of the present invention includes at least the following beneficial effects:

[0043] The above scheme of the present invention provides a radioactive material dispensing device and system, wherein the dispensing device includes: a base; at least one supporting assembly, at least one supporting assembly is arranged on the base and moves along the x-axis direction on the base; a packaging assembly, the packaging assembly is vertically arranged on one side of the supporting assembly and movably connected to the supporting assembly, the packaging assembly moves along the y-axis direction on the supporting assembly, and is used to package radioactive materials; a receiving assembly, the receiving assembly is fixedly connected to the base, and is used to receive the radioactive materials packaged by the packaging assembly, so as to realize the automation of radioactive material packaging and improve the accuracy and safety of radioactive material packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a three-dimensional diagram of a material distribution device provided by an embodiment of the present invention;

[0045] Figure 2 This is a front view of a material distribution device provided by an embodiment of the present invention;

[0046] Figure 3 is a three-dimensional diagram of a support assembly provided by an embodiment of the present invention;

[0047] Figure 4 yes Figure 3 The main view;

[0048] Figure 5 is a cross-sectional perspective view of a support assembly provided by an embodiment of the present invention;

[0049] Figure 6 This is a three-dimensional diagram of the subassembly component provided by an embodiment of the present invention

[0050] Figure 7 This is a three-dimensional diagram from another perspective of the sub-packaging assembly provided by an embodiment of the present invention;

[0051] Figure 8 This is a three-dimensional diagram of a filling funnel provided by an embodiment of the present invention;

[0052] Figure 9 This is a three-dimensional diagram of the sleeve structure in the funnel base provided by an embodiment of the present invention;

[0053] Figure 10 This is a three-dimensional diagram of a sub-assembly rotor provided in an embodiment of the present invention;

[0054] Figure 11 This is a three-dimensional diagram of the connection between the adapter assembly and the transfer barrel provided by an embodiment of the present invention;

[0055] Figure 12 This is a three-dimensional diagram of a transfer tube provided by an embodiment of the present invention;

[0056] Figure 13is a three-dimensional diagram of a guide sleeve provided by an embodiment of the present invention;

[0057] Figure 14 It is a three-dimensional diagram of a sliding sleeve provided by an embodiment of the present invention.

[0058] Explanation of the accompanying symbols: 1. Base; 10. Support base; 11. First support assembly; 110. First drive motor; 111. First chain; 112. First shell; 113. First screw rod; 114. Support assembly fixing seat; 12. Second support assembly; 120. Second drive motor; 121. Second chain; 122. Subassembly assembly fixing seat; 20. Funnel base; 201. First screw hole; 202. Limit spring; 21. Funnel base; 210. Sleeve; 22. Discharge port; 23. Subassembly shaft; 24. Subassembly assembly mounting seat; 25. Locking pin; 26. Third drive motor Machine; 3. Adapter assembly; 31. Adapter cover; 32. Adapter cylinder; 321. Ball bearing hole; 322. First limiting hole; 33. Guide sleeve; 331. First track; 332. Second track; 34. Sliding sleeve; 341. Second screw hole; 342. Second limiting hole; 343. Third limiting hole; 344. Limit screw; 345. Pressure column; 40. Position detection sensor; 41. Hub base; 42. Rotating cylinder; 421. Packing trough; 43. Rotating shaft; 44. Grooved wheel; 45. Pulley; 46. Fourth driving motor; 5. Weighing platform; 6. Receiving container; 7. Elastic assembly; 8. Rotating cylinder. DETAILED DESCRIPTION

[0059] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0060] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a radioactive material distribution device, comprising:

[0061] Base 1;

[0062] At least one supporting assembly, wherein at least one supporting assembly is disposed on the base 1 and moves along the x-axis direction on the base 1;

[0063] A subassembly assembly, the subassembly assembly being vertically disposed on one side of the support assembly and movably connected to the support assembly, the subassembly assembly moving along the y-axis direction on the support assembly;

[0064] The material receiving component is fixedly connected to the base 1 and is used to receive the radioactive material sub-packed by the sub-packing component.

[0065] In this embodiment, the base 1 serves as the support part of the entire material distribution device and can be set as a plate-like structure. At least one of the support components, the sub-packing component, and the material receiving component are arranged on the first surface of the base 1. A plurality of support bases 10 are arranged on the second surface of the base 1. The plurality of support bases 10 are evenly distributed on the second surface of the base 1 and are fixedly welded to the second surface of the base 1. When using the material distribution device of this embodiment, the entire material distribution device is fixed in the glove box through the support bases 10. Preferably, in this embodiment, the support bases 10 can be set to 4 and are respectively fixed at the four corners of the second surface of the base 1.

[0066] In this embodiment, at least one of the support components is arranged on the first surface of the base 1 and is movably connected to the base 1. The sub-packing component is movably connected to one side of the support component and is vertically arranged on one side of the support component for sub-packing radioactive materials. The material receiving component is fixedly connected to the first surface of the base 1 and is arranged at a preset distance from the sub-packing component for receiving the radioactive material sub-packed by the sub-packing component.

[0067] The support component serves as the support part of the sub-packing component, and at least one driving motor is arranged thereon. When the material distribution device is in use, at least one of the driving motors respectively drives the sub-packing component to move up and down along the y-axis direction on the support component, and drives the support component to move horizontally along the x-axis direction on the first surface of the base 1 (the horizontal movement of the support component drives the sub-packing component to move horizontally), and moves the sub-packing component to a preset distance above the material receiving component to prepare for the sub-packing of radioactive materials. The sub-packing component serves as the main component for sub-packing radioactive materials, and at least one sub-packing component driving motor can be arranged thereon. At least one of the sub-packing component driving motors drives the sub-packing component to flip on the support component and the periodic rotation of the internal structure, so as to realize the sub-packing of radioactive materials from the corresponding placement container through the sub-packing component into the material receiving component, realize the precise control of radioactive material sub-packing, and avoid the leakage and waste of radioactive materials.

[0068] When using the material distribution device described in this embodiment, the entire material distribution device is fixed in the glove box. Through the mutual cooperation and use of the support component and the material distribution component, the automatic material distribution of radioactive materials in a closed environment can be realized, improving the accuracy of material distribution; at the same time, the radiation dose of radioactive materials can be reduced, and the safety of radioactive material packaging can be improved; the radioactive materials described here can be powdered radioactive materials. It should be noted that this material distribution device is not limited to packaging powdered radioactive materials, but can also package other forms of radioactive materials that meet the packaging requirements.

[0069] As Figures 3 to 5 shown, in an alternative embodiment of the present invention, at least one of the support components is described. At least one of the support components may include:

[0070] The first support component 11; the first support component 11 is fixed to the base 1; a first drive motor 110 is provided on the first support component 11,

[0071] The second support component 12; the second support component 12 is vertically provided on the first support component 11 and is movably connected to the first support component 11; a second drive motor 120 is provided on the second support component; when material distribution is carried out, the first drive motor 110 drives the second support component 12 to move along the x-axis direction on the first support component 11, and the second drive motor 120 drives the packaging component to move along the y-axis direction on the second support component 12.

[0072] In this embodiment, the first support component 11 may include: a first housing 112 and a first lead screw 113 disposed inside the first housing 112. The two ends of the first lead screw 113 are respectively movably connected to the inner ends of both sides of the first housing 112. One end of the first lead screw 113 is also electrically connected to the first drive motor 110 disposed on one side of the first housing 112; two slide rods are also fixedly connected inside the first housing 112. The two support rods are arranged parallel to the first lead screw 113 and are respectively disposed on both sides of the first lead screw 113;

[0073] A support component fixing seat 114 is further provided on the first housing 112. A lead screw nut matching the first lead screw 113 is provided on the bottom surface of the support component fixing seat. Chutes respectively matching the support rods are provided on both sides of the lead screw nut. The support component fixing seat 114 is movably connected to the first support component 11 through the cooperation of the lead screw nut and the first lead screw 113 and the cooperation of the chute and the slide rod. Here, the first housing 112 functions to prevent dust. The two support rods on both sides of the first lead screw 113 support the support component fixing seat 114. The lead screw nut is preferably made of igus material. One end of the second support component 12 is fixedly connected to the support component fixing seat 114. The second support component 12 is movably connected to the first support component 11 through the support component fixing seat 114.

[0074] When radioactive materials are divided and packaged, the first driving motor 110 drives the first lead screw 113 to rotate inside the first housing 112. As the first lead screw 113 rotates, through the cooperation of the lead screw and the lead screw nut, the support component fixing seat 114 is driven to move on the first lead screw 113, and then the entire second support component 12 is driven to move horizontally along the x-axis direction on the first support component 11, so as to move the packaging component connected to the second support component 12 to the position where the material receiving component is located, preparing for material separation and ensuring the accuracy of material separation at the same time.

[0075] In this embodiment, the second support component 12 includes a second housing, a second lead screw, and two support rods arranged on both sides of the second lead screw. The specific setting of the internal structure of the second support component 12 is the same as that of the first support component 11, which will not be elaborated here. A packaging component fixing seat 122 is provided on the second housing of the second support component. The specific structure of the packaging component fixing seat 122 is the same as that of the support component fixing seat 114, which will not be elaborated here.

[0076] The packaging component is movably connected to the second support component through the packaging component fixing seat 122. The second driving motor 120 is electrically connected to one end of the second lead screw. When radioactive materials are divided and packaged, the second driving motor 120 drives the second lead screw to rotate inside the second housing. As the second lead screw rotates, through the cooperation of the lead screw and the lead screw nut, the packaging component fixing seat 122 is driven to move on the second lead screw, and then the entire packaging component is driven to move horizontally along the y-axis direction on the second support component 12, so as to move the packaging component connected to the second support component 12 to the position where the material receiving component is located, preparing for material separation and ensuring the accuracy of material separation at the same time.

[0077] Preferably, both the first drive motor 110 and the second drive motor 120 can be servo motors to precisely control the distances that the second support assembly 12 and the material distribution assembly move.

[0078] Preferably, a first chain 111 is provided on the side of the first support assembly, and a second chain 121 is provided on the side of the second support assembly. Cables are placed inside the first chain 111 and the second chain 121 to protect the cables.

[0079] As Figures 6 to 7 shown, in an alternative embodiment of the present invention, the dispensing assembly is described. The dispensing assembly may include:

[0080] A dispensing assembly mounting seat 24, which is fixedly connected to the second support assembly 12. A third drive motor 26 is provided on the dispensing assembly mounting seat 24;

[0081] A dispensing funnel; one side of the dispensing funnel is fixedly connected to one side of the dispensing assembly mounting seat 24;

[0082] An adapter assembly 3; one end of the adapter assembly 3 is fixedly connected to one end of the dispensing funnel;

[0083] A hub drive assembly; the hub drive assembly is fixed to the other side of the dispensing funnel.

[0084] In this embodiment, the dispensing assembly mounting seat 24 serves as the support and connection component of the dispensing funnel. One side of it is fixedly connected to the dispensing assembly fixing seat 122 on the second support assembly 12, and the other side is movably connected to the dispensing funnel through a bearing. When radioactive materials are dispensed, the third drive motor 26 drives the bearing to rotate. After the bearing rotates to a certain angle, the dispensing funnel is fixed by a locking pin 25. At the same time, when the bearing rotates to a certain angle, it drives the dispensing funnel to also rotate to a certain angle, and then drives the hub drive assembly and the material transfer assembly to rotate to a certain angle at the same time, preparing for the dispensing of radioactive materials; preferably, the third drive motor 26 can be a servo motor to precisely control the rotation angle of the bearing on the dispensing assembly mounting seat 24;

[0085] In this embodiment, one end of the dispensing funnel is fixedly connected to one end of the adapter assembly 3, and the other end of the adapter assembly 3 is clamped to a container containing the radioactive materials to be dispensed, providing the radioactive materials to be dispensed. The dispensing funnel serves as the dispensing container when dispensing radioactive materials. The hub drive assembly is fixedly connected to the other side of the dispensing funnel, providing power for the quantitative dispensing of radioactive materials;

[0086] AsFigure 8 As shown, in an optional embodiment of the present invention, the filling funnel may include: a funnel base 21 having a cavity structure and a filling shaft 23 provided on the other side of the funnel base 21, the filling funnel base 21 is movably connected to a bearing on the filling assembly mounting seat 24 via the filling shaft 23, and the filling funnel, the adapter assembly 3 and the hub drive assembly are integrally fixed to the second support assembly 12 via the filling shaft 23 and the filling assembly mounting seat 24;

[0087] The first end of the funnel base 21 is provided with a discharge port 22, and the second end of the funnel base 22 is fixedly connected to the adapter assembly 3 via the funnel base 20, and the funnel base 20 at the second end of the funnel base 21 is provided with a feed port, and the feed port is connected to the discharge port 22 through the cavity structure of the funnel base 21;

[0088] When performing subpackaging of radioactive materials, the second drive motor 120 cooperates with the second screw and the screw nut to drive the subpackaging funnel, the adapter assembly 3 and the hub drive assembly to move as a whole on the second support assembly 12. The third drive motor 26 drives the bearing on the subpackaging assembly mounting seat 24 to rotate. While the bearing rotates, the entire subpackaging assembly is driven to rotate on the second support assembly 12 via the subpackaging shaft 23, and stops after rotating a certain angle (preferably 180°) to prepare for the subpackaging of radioactive materials, thereby realizing the subpackaging of radioactive materials from the container containing the radioactive materials to be subpacked to the material receiving assembly.

[0089] In an achievable example of the present invention, an elastic component 7 can be provided at the discharge port 22 of the funnel base 21. During the process of distributing materials after the distributing component is flipped over, the contact between the discharge port 22 and the material receiving container in the material receiving component can be sealed and shielded, thereby ensuring the tight combination of the material receiving component and the discharge port 22 of the funnel base 21, so that there is no gap between the material receiving component and the docking position of the funnel; the flying material is returned by the elastic component 7 and falls back into the receiving component, avoiding waste of materials; here, the elastic component 7 can be a silicone plate. Of course, other components with elastic properties and that can play a shielding role are also acceptable.

[0090] Preferably, Figure 9As shown, a sleeve 210 is also fixedly connected inside the funnel base body 21. The shape and size of the sleeve 210 match the cavity structure inside the funnel base body 21, and the sleeve 210 is provided with openings matching the feed inlet and the discharge port 22. During the assembly process of the entire material distribution device, some components on the rotary hub drive assembly are placed in the sleeve 210 inside the funnel base body 21 and rotary material distribution is completed. More preferably, the sleeve 210 is made of silicon carbide material to improve the wear resistance of the rotary hub drive assembly, and it can prevent the rotary hub drive assembly and the sleeve 210 from being worn during long-term material distribution, resulting in deviation of the packaging accuracy, more adhered materials, and possible introduction of impurity elements to contaminate the materials.

[0091] As Figures 6 to 7 shown, in an alternative embodiment of the present invention, the rotary hub drive assembly includes:

[0092] A rotary hub base 41, which is fixed on the other side of the funnel base body 21;

[0093] A packaging rotor, one end of which is arranged inside the cavity structure of the funnel base body 21, and the other end extends out of the cavity structure and penetrates through the rotary hub base 41;

[0094] A driving mechanism, which is fixed on the rotary hub base 41, one end of the driving mechanism is fixedly connected to the other end of the packaging rotor, and drives the packaging rotor to rotate;

[0095] A position detection sensor 40, which is fixed on the rotary hub base 41.

[0096] In this embodiment, the rotary hub base 41 is fixed on the other side of the funnel base body 21 as a support component for the entire rotary hub drive assembly;

[0097] The packaging rotor is arranged in the sleeve 210 inside the cavity structure of the funnel base body 21, and one end extends out of the cavity structure and penetrates through the rotary hub base 41;

[0098] As Figure 10 shown, in an implementable embodiment of the present invention, the packaging rotor may include: a first rotating shaft 42 and a second rotating shaft 43 fixedly connected to the first rotating shaft 42; the first end of the second rotating shaft 43 is fixedly connected to one side of the first rotating shaft 42, and the second end extends out of the cavity structure of the funnel base body 21 and penetrates through the rotary hub base 41; the first rotating shaft 42 is arranged in the sleeve 210 inside the cavity structure of the funnel base body 21, and the size of the first rotating shaft 42 is smaller than the size of the sleeve 210, so that the rotating cylinder 42 can rotate inside the cavity structure of the funnel base body 21.

[0099] The first rotating shaft 42 and the second rotating shaft 43 can be integrally formed, and a cavity structure is provided inside the first rotating shaft 42; a plurality of sub-packaging grooves 421 are evenly formed on the first rotating shaft 42. When radioactive materials are sub-packaged, the driving mechanism drives the second rotating shaft 43 to rotate, and at the same time drives the first rotating shaft 42 to rotate. During the rotation of the first rotating shaft 42, the sub-packaging grooves 421 are intermittently communicated with the feed inlet and the discharge outlet 22 on the funnel base 21, so as to realize the sub-packaging of radioactive materials; preferably, 4 sub-packaging grooves 421 are provided; more preferably, the designed sub-packaging amount of each sub-packaging groove is 5 g / groove;

[0100] Preferably, both the first rotating shaft 42 and the second rotating shaft 43 are made of silicon carbide material to improve the wear resistance of the hub driving assembly, so as to extend the service life of the hub driving assembly and reduce the use and maintenance costs.

[0101] As Figures 6 to 7 shown, in an alternative embodiment of the present invention, the driving mechanism includes:

[0102] A sprocket wheel 44, which is fixedly connected to the second end of the rotating shaft 43 of the sub-packaging rotor;

[0103] A dial wheel 45, which is fixedly connected to the hub base 41 through a bearing seat, and one end of the dial wheel 45 contacts the sprocket wheel 44 of the sub-packaging rotor;

[0104] A fourth driving motor 46, which is fixed on the hub base 41, and the fourth driving motor 46 is electrically connected to the dial wheel 45 and drives the dial wheel 45 to rotate.

[0105] In this embodiment, the driving mechanism is fixed on the hub base 41 and is fixedly connected to the second rotating shaft 43 of the sub-packaging rotor at one end; that is, the Geneva wheel 44 is fixedly connected to the second end of the second rotating shaft 43, one end of the dial wheel 45 contacts the Geneva wheel 44, and the other end is electrically connected to the fourth driving motor 46. The fourth driving motor 46 drives the dial wheel 45 to rotate. The dial wheel 45 drives the Geneva wheel 44 to rotate, further driving the second rotating shaft 43 fixedly connected to the Geneva wheel 44 to rotate, and then driving the first rotating shaft 42 in the funnel base 21 to rotate, realizing the sub-packaging of radioactive materials; preferably, the Geneva wheel 44 is set as a four-slot Geneva wheel, and of course, it can also be set to other numbers according to actual needs; every time the dial wheel 45 rotates one week, it drives the Geneva wheel 44 to rotate once. When the Geneva wheel 44 rotates once, it drives the first rotating shaft 42 and the first rotating shaft 43 to rotate a quarter of a circumference; through the mutual cooperation of the dial wheel 45 and the Geneva wheel 44, the intermittent rotation of the sub-packaging rotor is realized to control the sub-packaging speed and avoid blockage; at the same time, the cooperation of the Geneva wheel and the dial wheel structure also ensures the stability during the sub-packaging process of radioactive materials and avoids material leakage and splashing;

[0106] Here, the position detection sensor 40 is fixedly connected to the hub base 41 and is used to monitor the position and number of rotations of the dial wheel 45 in real time to ensure the accuracy of controlling the material separation amount during subsequent material sub-packaging; when performing the sub-packaging of radioactive materials, the fourth driving motor 46 drives the dial wheel 45 to rotate. The rotation of the dial wheel 45 drives the Geneva wheel 44, the second rotating shaft 43, and the first rotating shaft 42 to rotate. During the rotation of the first rotating shaft 42, the feeding port and the discharging port 22 of the funnel base 21 are connected through the sub-packaging groove 421, and the radioactive materials to be sub-packaged are quantitatively sub-packaged from the outer container into the receiving assembly; since the sub-packaging groove 421 is designed quantitatively, and since the rotation of the dial wheel 45 for one week drives the sub-packaging rotor (the first rotating shaft 42, the second rotating shaft 43) to rotate a quarter of a circumference, that is, when the sub-packaging rotor rotates once, material separation is realized once through the sub-packaging groove 421. By monitoring the position and number of rotations of the dial wheel 45 in real time through the position detection sensor 40, the quality of the sub-packaged materials can be actively controlled to realize the precise control of material sub-packaging and improve the material sub-packaging efficiency;

[0107] Due to the rotational driving effect of the hub driving assembly during the entire sub-packaging process of radioactive materials, the Geneva wheel 44 and the dial wheel 45 of the hub driving assembly can both be made of silicon carbide materials with high hardness and wear resistance to improve the service life of the hub driving assembly and reduce the use and maintenance costs.

[0108] In an implementable solution of the present invention, in order to prevent the funnel base 21 and the rotary drum 42 from sticking to materials during the sub-packaging process, the inner surface of the funnel base 21, as well as the outer and inner sides of the rotary drum 42, can be mirror-finished to reduce the amount of adhered materials, avoid blockage, and improve the efficiency of material sub-packaging at the same time.

[0109] As Figures 10 to 14 shown, in an alternative embodiment of the present invention, the adapter assembly is described. The adapter assembly 3 may include:

[0110] An adapter tube 32, which is a stepped cylindrical tube and is fixedly connected to the second end of the sub-packaging funnel at one end;

[0111] A guide sleeve 33, which is sleeved on the adapter tube 32 and is movably connected to the adapter tube 32;

[0112] A sliding sleeve 34, which is arranged below the guide sleeve 33, is sleeved on the adapter tube 32, and is elastically connected to the second end of the sub-packaging funnel at one end.

[0113] In this embodiment, the adapter tube 32 is set as a stepped cylindrical tube, and the diameters of the stepped cylindrical tube of the adapter tube 32 increase in sequence from top to bottom. The first end of the adapter tube 32 communicates with the feed port on the second end of the sub-packaging funnel base 21. A screw hole is provided on the fourth stepped surface of the adapter tube 32, and the adapter tube 32 is fixedly connected to the funnel base 20 by passing a screw through the screw hole; the inside of the second end of the adapter tube 32 is fixedly connected to the transfer tube 8 in a clamping manner; equally spaced first limiting holes 322 are provided on the circumference of the first stepped cylindrical tube of the adapter tube 32, and equally spaced ball holes 321 are provided on the circumference of the second stepped cylindrical tube. A ball is arranged in the ball hole 321, and the ball can move in the ball hole 321 along the direction perpendicular to the central axis of the adapter tube 32. Before the transfer tube 8 is clamped inside the adapter tube 32, the ball is far away from the central axis of the adapter tube 32; when the transfer tube 8 is clamped inside the adapter tube 32, the ball approaches the central axis of the adapter tube 32 and contacts the outside of the transfer tube 8;

[0114] Both the guide sleeve 33 and the sliding sleeve 34 are cylindrical tubes, and the diameter of the cylindrical tube of the sliding sleeve 34 is larger than the diameter of the cylindrical tube of the guide sleeve 33; the diameter of the circular tube of the sliding sleeve 34 is larger than the diameter of the first stepped cylindrical tube of the adapter tube 32; the guide sleeve 33 is sleeved on the second stepped cylindrical tube of the adapter tube 32, and one end contacts the stepped surface of the first stepped cylindrical tube of the adapter tube 32. The sliding sleeve 34 is sleeved on the outside of the guide sleeve 33 and the first stepped cylindrical tube of the adapter tube 32;

[0115] Inside one end of the guide sleeve 33, a first track 331 matching the balls in the ball holes 321 is provided. The first track 331 is a continuous stepped track with undulating heights. Before the transfer cylinder 8 is clamped inside the transfer cylinder 32, the lower steps of the first track 331 are in contact with the balls; when the transfer cylinder 8 is clamped inside the transfer cylinder 32, the upper steps of the first track 331 are in contact with the ball holes 321. On the circumference of the guide sleeve 33, a second track 332 is provided, and the second track 332 is arranged in a connected W shape.

[0116] On the circumference of the sliding sleeve 34, a plurality of second screw holes 341 are evenly provided. The sliding sleeve 34 is elastically connected to the dispensing funnel by a limiting spring 202 passing through the second screw holes 341 and the first screw holes 201 on the funnel base 20. On the sliding sleeve 34, a second limiting hole 324 matching the first limiting hole 322 and a third limiting hole 343 matching the W-shaped second track 332 are also provided.

[0117] When the transfer cylinder 8 is placed at a pending position for material distribution, the second drive motor 120 drives the entire dispensing assembly to move downward along the second support assembly 12. Since the diameter of the stepped cylinder of the transfer cylinder 32 decreases sequentially from bottom to top, during the downward movement of the dispensing assembly, the sliding sleeve 34 will be subjected to an upward resistance from the transfer cylinder 8. Since the sliding sleeve 34 is elastically connected to the dispensing funnel through the limiting spring 202, under the action of the upward resistance of the transfer cylinder 8, the sliding sleeve 34 will move upward along the guide sleeve 33. At this time, the pressing column 345 passes through the third limit 343 and is inserted into the second track 332. During the upward movement of the sliding sleeve 34, since the second track 332 is arranged in a W shape, the pressing column 345 will push the guide sleeve 33 to rotate on the second stepped cylinder of the transfer cylinder 32. During the rotation of the guide sleeve 33, the upper steps of the first track 331 turn towards the ball holes 321 and squeeze the balls in the ball holes towards the center of the transfer cylinder 32. At this time, the balls are clamped between the upper steps of the first track 331 and the transfer cylinder 8, and the transfer cylinder 8 is clamped and fixed to the transfer cylinder 32, realizing the clamping and fixing of the transfer cylinder 8 to the entire transfer assembly, preparing for material distribution. Since the sliding sleeve 34 is elastically connected to the dispensing funnel, by passing a limit screw 344 through the second limiting hole 342 and the first limiting hole 322 in sequence, the up and down movement of the sliding sleeve 34 along the second limiting hole 342 can be restricted, avoiding the rotation of the sliding sleeve 34.

[0118] Preferably, a container containing radioactive materials is placed inside the material transfer cylinder 8. When the material transfer cylinder 8 is clamped and fixed to the adapter cylinder 32, the sealed interface of the container containing radioactive materials fits with the feed inlet of the funnel base 21, preparing for subsequent dispensing; through the combined use of the adapter cylinder 32, the guide sleeve 33, the sliding sleeve 34, and the material transfer cylinder 8, containers containing radioactive materials with different sealed interface structures can be compatible, improving the applicability of the device;

[0119] Preferably, the adapter assembly 3 may further include: an adapter cover 31 disposed above the guide sleeve 33 and fixedly connected to the adapter cylinder 32; the setting of the adapter cover 31 improves the connection stability between the adapter cylinder 32 and the dispensing funnel, further ensuring the stability during the material dispensing process.

[0120] In an alternative embodiment of the present invention, the material receiving assembly is described. The material receiving assembly may include:

[0121] A weighing platform 5, the weighing platform 5 is fixed on the base 1, and a weight sensor is provided on the weighing platform 5;

[0122] A material receiving container 6, the material receiving container 6 is placed on the weighing platform 5.

[0123] In this embodiment, the material receiving assembly is fixedly connected to the first surface of the base 1 and is disposed at a preset distance from the dispensing assembly before material distribution, for receiving the radioactive materials dispensed by the dispensing assembly; the weighing platform 5 of the material receiving assembly is fixed on the base 1, and a weight sensor is provided on the weighing platform 5. Through the weighing platform 5 and the weight sensor, the weight of the radioactive materials after dispensing is weighed and monitored in real time, forming a negative feedback with the weight of the radioactive materials dispensed calculated according to the number of turns of the rotation of the dial 45 monitored by the position detection sensor 40, so as to improve the dispensing accuracy of the radioactive materials; here, the weighing platform 5 may be a balance.

[0124] An embodiment of the present invention further provides a material distribution system for radioactive materials, including the material distribution device for radioactive materials as described in the above embodiment, and further including:

[0125] A controller, the controller is respectively communicatively connected to the drive motor and the sensors provided on the material distribution device. The controller is used to control the drive motor to drive the support assembly to move along the x-axis direction on the base 1 and the dispensing assembly to move along the y-axis direction on the support assembly according to the received sensor signals.

[0126] In this embodiment, the controller is communicatively connected to the first drive motor, the second drive motor, the third drive motor, the position detection sensor 40, and the weight sensor respectively; the controller controls the first drive motor to drive the second support assembly 12 to move on the first support assembly 11 by receiving the signal fed back by the position detection sensor; and controls the second drive motor to drive the dispensing assembly to move upward on the second support assembly 12; the controller controls the fourth drive motor 46 to drive the rotation of the dial and the sprocket wheel by receiving the signal fed back by the weight sensor, thereby realizing material distribution;

[0127] When using the material distribution device provided in the above embodiment of the present invention for material dispensing, the following steps are specifically included:

[0128] Step 11, device standby: The transfer barrel 8 of the material container filled with the radioactive material to be transferred is rotated into the container waiting position, and the receiving container 6 is placed on the weighing platform 5;

[0129] Step 12, clamping connection between the transfer barrel 8 and the dispensing assembly: The controller controls the second drive motor 120 to operate, and the second drive motor 120 drives the dispensing assembly to move downward on the second support assembly 12, and stops after moving to a position where the transfer barrel 8 and the transfer barrel 32 of the dispensing assembly are clamped and fixed;

[0130] Step 13, rising of the dispensing assembly: The controller controls the second drive motor 120 to operate, and the second drive motor 120 drives the dispensing assembly to move upward on the second support assembly 12, and stops after moving a first preset distance;

[0131] Step 14, horizontal movement of the dispensing assembly: After moving a first preset distance, the controller controls the first drive motor 110 to operate, and the first drive motor 110 drives the second support assembly 12 to move on the first support assembly 11, and stops after moving a second preset distance;

[0132] Step 14, lowering of the dispensing assembly: The controller controls the second drive motor 120 to operate, and the second drive motor 120 drives the dispensing assembly to move downward on the second support assembly 12, and stops after moving a third preset distance (it should be known that the third preset distance is less than the first preset distance), to prepare for material dispensing;

[0133] Step 15, start material distribution: The controller controls the operation of the fourth drive motor 46 in the rotary drum drive assembly. The fourth drive motor 46 drives the dial 45 and the sprocket 44 to rotate, and distributes the radioactive material into the receiving container 6 of the material receiving assembly. During the distribution of the radioactive material, the controller, based on the number of rotations of the dial 45 fed back by the position sensor 40 received, as well as the weighing platform 5 and the weight sensor in the material receiving assembly, weighs in real time and feeds back the amount of the distributed radioactive material to achieve closed-loop control and accurately control the amount of material distribution.

[0134] The material distribution device and system provided in the above embodiments of the present invention, wherein the material distribution device includes: a base; at least one support assembly, at least one of the support assemblies is disposed on the base and moves along the x-axis direction on the base; a distribution assembly, the distribution assembly is vertically disposed on one side of the support assembly and is movably connected to the support assembly, and the distribution assembly moves along the y-axis direction on the support assembly; a material receiving assembly, the material receiving assembly is fixedly connected to the base and is used to receive the radioactive material distributed by the distribution assembly.

[0135] The controller in the material distribution system is respectively communicatively connected to the first drive motor, the second drive motor, the third drive motor, the fourth drive motor, the position detection sensor, and the weight sensor; the controller controls the first drive motor to drive the second support assembly to move on the first support assembly by receiving the signal fed back by the position detection sensor; and controls the second drive motor to drive the distribution assembly to move upward on the second support assembly; the controller controls the fourth drive motor to drive the rotation of the dial and the sprocket by receiving the signal fed back by the weight sensor, realizing the automation of radioactive material distribution and improving the accuracy and safety of radioactive material distribution.

[0136] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A material distribution device for radioactive materials, characterized in that Comprising: Base (1); At least one support component, at least one of the support components is arranged on the base (1) and moves along the x-axis direction on the base (1); Sub-packaging component, the sub-packaging component is vertically arranged on one side of the support component and is movably connected to the support component, and the sub-packaging component moves along the y-axis direction on the support component; Material receiving component, the material receiving component is fixedly connected to the base (1) and is used for receiving the radioactive material sub-packaged by the sub-packaging component; Wherein, at least one support component includes: First support component (11); the first support component (11) is fixed on the base (1), and a first driving motor (110) is arranged on the first support component (11); Second support component (12); the second support component (12) is vertically arranged on the first support component (11) and is movably connected to the first support component (11); a second driving motor (120) is arranged on the second support component; during material distribution, the first driving motor (110) drives the second support component (12) to move along the x-axis direction on the first support component (11), and the second driving motor (120) drives the sub-packaging component to move along the y-axis direction on the second support component (12); Wherein, the sub-packaging component includes: Sub-packaging component mounting seat (24), the sub-packaging component mounting seat (24) is fixedly connected to the second support component (12), and a third driving motor (26) is arranged on the sub-packaging component mounting seat (24); Sub-packaging funnel; one side of the sub-packaging funnel is fixedly connected to one side of the sub-packaging component mounting seat (24), and the sub-packaging funnel is driven to rotate on the second support component (12) by the third driving motor (26); Adapter component (3); one end of the adapter component (3) is fixedly connected to one end of the sub-packaging funnel; Hub driving component; the hub driving component is fixed on the other side of the sub-packaging funnel; Wherein, the adapter component (3) includes: Adapter tube (32), the adapter tube (32) is a stepped cylindrical tube, and one end is fixedly connected to the second end of the sub-packaging funnel; Guide sleeve (33), the guide sleeve (33) is sleeved on the adapter tube (32) and is movably connected to the adapter tube (32); Sliding sleeve (34), the sliding sleeve (34) is arranged below the guide sleeve (33), is sleeved on the adapter tube (32), and one end is elastically connected to the second end of the sub-packaging funnel; The guide sleeve (33) and the sliding sleeve (34) are both cylinders, and the cylinder diameter of the sliding sleeve (34) is larger than that of the guide sleeve (33); the circular diameter of the sliding sleeve (34) is larger than the diameter of the first-step cylinder of the adapter cylinder (32); the guide sleeve (33) is sleeved on the second-step cylinder of the adapter cylinder (32), and one end thereof contacts the step surface of the first-step cylinder of the adapter cylinder (32), and the sliding sleeve (34) is sleeved outside the guide sleeve (33) and the first-step cylinder of the adapter cylinder (32).

2. The dispensing device for radioactive materials according to claim 1, characterized in that, The dispensing funnel includes: A funnel base body (21) having a cavity structure; a discharge port (22) is provided at the first end of the funnel base body (21), the second end of the funnel base body (21) is fixedly connected to the adapter assembly (3), and a feed port is provided at the second end of the funnel base body (21); A dispensing rotating shaft (23), the dispensing rotating shaft (23) is arranged on one side of the funnel base body (21) and is movably connected to the dispensing assembly mounting seat (24).

3. The material distributing device for radioactive materials according to claim 2, wherein, The hub drive assembly includes: A hub base (41), the hub base (41) is fixed on the other side of the funnel base body (21); A dispensing rotor, one end of the dispensing rotor is arranged in the cavity structure of the funnel base body (21), and the other end extends out of the cavity structure and penetrates through the hub base (41); A drive mechanism, the drive mechanism is fixed on the hub base (41), one end of the drive mechanism contacts the other end of the dispensing rotor and drives the dispensing rotor to rotate; A position detection sensor (40), the position detection sensor (40) is fixed on the hub base (41).

4. The dividing device for radioactive materials according to claim 3, characterized in that, The dispensing rotor includes: A first rotating shaft (42), the first rotating shaft (42) is arranged in the cavity structure of the funnel base body (21); A second rotating shaft (43), one end of the second rotating shaft (43) is fixedly connected to one end of the first rotating shaft (42), and the other end thereof penetrates through the hub base (41) and is arranged.

5. The material distributing device for radioactive materials according to claim 3, characterized in that, The drive mechanism includes: A grooved wheel (44), the grooved wheel (44) is fixedly connected to the second end of the second rotating shaft (43) of the dispensing rotor; A dial wheel (45), the dial wheel (45) is fixedly connected to the hub base (41) through a bearing seat, and one end of the dial wheel (45) contacts the grooved wheel (44); A fourth drive motor (46), the fourth drive motor (46) is fixed on the hub base (41), and the fourth drive motor (46) is electrically connected to the dial wheel (45) and drives the dial wheel (45) to rotate.

6. The dispensing device for radioactive materials according to claim 1, characterized in that The material receiving assembly includes: A weighing platform (5), the weighing platform (5) is fixed on the base (1), and a weight sensor is arranged on the weighing platform (5); A material receiving container (6), the material receiving container (6) is placed on the weighing platform (5).

7. A material distribution system for radioactive materials, comprising the material distribution device for radioactive materials according to any one of claims 1-6, characterized in that, It further includes: A controller, the controller is electrically connected to the drive motor and the sensor provided on the material distribution device respectively, and the controller is used to control the drive motor to drive the support assembly to move along the x-axis direction on the base (1), the sub-packaging assembly to move along the y-axis direction on the support assembly, and the rotational movement according to the received sensor signal.

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