Radioactive material loading and transporting device

Abstract

The invention relates to the technical field of radioactive material transfer equipment, in particular to a radioactive material loading and transporting device which comprises a shielding main body, a shielding main body, a conveying device and a driving device, the shielding main body is provided with an openable closed inner cavity, and the inner cavity of the shielding main body can contain radioactive materials; the walking assembly is arranged at the lower end of the shielding main body, and the walking assembly can walk by itself and / or walk under the action of traction force; the sliding shielding door is arranged at the lower end of the shielding main body, and the internal cavity of the shielding main body can be opened and closed through sliding of the sliding shielding door; the hoisting assembly is arranged at the upper end of the shielding main body; wherein under the condition that the sliding shielding door is opened, the hoisting assembly can automatically hoist materials into or out of the inner cavity of the shielding main body. Automatic transferring and loading and unloading of the radioactive materials can be achieved, and the safety of transferring and loading and unloading of the radioactive materials is improved.

Description

Technical Field

[0001] The invention relates to the technical field of radioactive material transfer equipment, and in particular to a radioactive material loading and transportation device. Background Art

[0002] The transportation of radioactive materials is generally involved in nuclear reactors and their research facilities, radioactive scientific research and experimental facilities, radioactive waste treatment facilities, nuclear fuel production facilities, spent fuel reprocessing facilities, radioactive isotope production facilities, radioactive pharmaceutical product production facilities, etc. Generally speaking, the radioactive materials involved have the characteristics of high radioactivity levels. In certain special scenarios, local shielding measures are also required to protect the safety of workers.

[0003] The existing radioactive material transfer containers basically only consider the shielding function of their main operating surfaces, and the loading and unloading of materials are basically done manually, which is very inconsistent with the principle of humanization, seriously affecting work efficiency, and there are certain safety hazards in the operation and transportation process. At the same time, since some of these environments themselves have a certain level of radioactivity, conventional radioactive material transfer containers cannot be used for radioactive material transfer and loading and unloading in these radioactive places where access is restricted. Summary of the invention

[0004] In view of the technical problem that existing radioactive material transfer containers require manual loading and unloading, the present invention provides a radioactive material loading and transportation device that can realize automatic transfer and loading and unloading of radioactive materials, shield the radiation of radioactive materials during the transfer process, so as to reduce the work intensity of radioactive material transfer and loading and unloading, improve work efficiency, and enhance the safety of radioactive material transfer and loading and unloading.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention provides a radioactive material loading and transportation device, comprising: a shielding body, the shielding body is provided with an openable and closed inner cavity, and the inner cavity of the shielding body can accommodate radioactive materials; a walking component, the walking component is arranged at the lower end of the shielding body, and the walking component can walk by itself and / or under the action of traction; a sliding shielding door, the sliding shielding door is arranged at the lower end of the shielding body, and the sliding shielding door can be opened and closed automatically, and the internal cavity of the shielding body can be opened and closed by sliding the sliding shielding door; a hoisting component, the hoisting component is arranged at the upper end of the shielding body; wherein, when the sliding shielding door is opened, the hoisting component can automatically hoist materials into or out of the inner cavity of the shielding body.

[0007] The radioactive material loading and transportation device provided by the present invention includes a shielding body, a traveling assembly, a sliding shielding door and a hoisting assembly. The shielding body is provided with an openable and closed inner cavity. The traveling assembly is arranged at the lower end of the shielding body, and the traveling assembly can move by itself and / or move under the action of traction. The sliding shielding door is arranged at the lower end of the shielding body and can be opened and closed automatically. The hoisting assembly is arranged at the upper end of the shielding body.

[0008] When reflective materials need to be transferred, first dock the through cavity at the lower end of the shielding body with the logistics hole in the radioactive material storage process room, remotely control to open the sliding shielding door, and then hoist the transfer container (basket) containing the radioactive material into the inner cavity of the shielding body through the lifting assembly, then remotely control to close the sliding shielding door, and transfer the transfer container to the unloading process room through the walking assembly to dock the through cavity at the lower end of the shielding body with the logistics hole in the radioactive material unloading process room, remotely control to open the sliding shielding door again, and remotely control the lifting assembly to lower the transfer container or radioactive object to the radioactive material unloading process room to automatically complete the transfer of radioactive materials.

[0009] During the entire transportation process, the radioactive materials are all in the inner cavity of the shielding body, which can shield the radiation of the radioactive materials.

[0010] Therefore, the radioactive material loading and transporting device provided by the present invention can realize the automatic transfer and loading and unloading of radioactive materials, shield the radiation of radioactive materials during the transfer process, so as to reduce the workload of transferring and loading and unloading radioactive materials, improve work efficiency, and enhance the safety of transferring and loading and unloading radioactive materials.

[0011] In an optional embodiment of the present application, the shielding body includes: a shielding base, a through cavity for radioactive materials to pass through is arranged in the middle of the shielding base; a shielding cylinder, the shielding cylinder is a centrally-through structure, and the shielding cylinder is installed at the upper end of the shielding base, and the inner cavity of the shielding cylinder is connected to the through cavity of the shielding base; a shielding top cover, the shielding top cover is fixed to the upper end of the shielding cylinder; wherein the sliding shielding door is installed between the shielding base and the shielding cylinder to perform all-round shielding of the radiation of the radioactive material through the shielding body.

[0012] In an optional embodiment of the present application, it also includes an anti-falling bracket, which is installed on the shielding base and is erected outside the shielding cylinder to prevent the shielding body from falling over during walking.

[0013] In an optional embodiment of the present application, each corner of the lower end of the anti-falling bracket is provided with a support adjustment mechanism, and the support adjustment mechanism can adjust the height of the corresponding corner of the anti-falling bracket to facilitate the adjustment of the height and balance of the shielding assembly from the ground.

[0014] In an optional embodiment of the present application, the support adjustment mechanism is adapted to be equipped with a lifting motor, so as to drive the support adjustment mechanism to move through the lifting motor, so as to achieve automatic adjustment of the support adjustment mechanism.

[0015] In an optional embodiment of the present application, the support adjustment mechanism is adapted to be equipped with an operating handle to manually adjust the support adjustment mechanism when the lifting motor fails.

[0016] In an optional embodiment of the present application, the travel assembly includes a steering wheel, and the steering wheel is installed at the lower end of the anti-falling bracket to facilitate the travel direction of the device through the steering wheel.

[0017] In an optional embodiment of the present application, the walking component further includes a walking motor, and the walking motor is transmission-connected to the steering wheel so that the walking motor drives the steering wheel to rotate automatically to realize self-walking of the device.

[0018] In an optional embodiment of the present application, the steering wheel is adapted to be equipped with a rudder bar, and the steering wheel can be manually controlled by the rudder bar to facilitate the manual control of the moving direction of the device.

[0019] In an optional embodiment of the present application, the steering wheel can be flipped and raised relative to the anti-falling bracket to facilitate the storage of the foldable steering wheel.

[0020] In an optional embodiment of the present application, the shielding body also includes a shielding reinforcement enclosure, which is installed on the shielding base and is arranged outside the closing position of the sliding shielding door to improve the radiation shielding performance of the shielding body.

[0021] In an optional embodiment of the present application, the shielding body further includes a fixed reinforcement block, and the fixed reinforcement block is installed on the shielding reinforcement enclosure to enhance the radiation shielding after the sliding shielding door is opened.

[0022] In an optional embodiment of the present application, the walking assembly includes walking wheels, and the walking wheels are installed at the lower end of the fixed reinforcement block to assist in achieving self-walking of the device.

[0023] In an optional embodiment of the present application, the travel wheels are capable of universal travel, flipping, lifting and braking.

[0024] In an optional embodiment of the present application, the sliding shielding door includes two door bodies, both of which are slidably connected to the shielding body, and the two door bodies can move relatively away from or towards each other to facilitate rapid opening and closing of the inner cavity of the shielding body.

[0025] In an optional embodiment of the present application, the opposite sides of the two door bodies are multi-curvature docking structures that cooperate with each other to avoid radiation hazards caused by rays passing through the docking gap.

[0026] In an optional embodiment of the present application, each of the door bodies is adapted to be equipped with a linear drive mechanism to achieve automatic opening and closing of the sliding shielding door.

[0027] In an optional embodiment of the present application, the linear drive mechanism is a lead screw mechanism to ensure that the movement of the sliding shielding door is sufficiently reliable.

[0028] In an optional embodiment of the present application, the two linear drive mechanisms are driven by the same opening and closing motor to simplify the structure of the device.

[0029] In an optional embodiment of the present application, the linear drive mechanism is transmission-connected to the opening and closing motor via a gear pair, so as to realize the transmission connection between the opening and closing motor and the screw pair mechanism.

[0030] In an optional embodiment of the present application, the linear drive mechanism is adapted with a second hand wheel to manually open and close the sliding shielding door in the event of a failure of the opening and closing motor.

[0031] In an optional embodiment of the present application, both door bodies are equipped with follower reinforcement blocks to increase the radiation shielding capability of the sliding shielding door.

[0032] In an optional embodiment of the present application, a horizontal pulley set is provided between the sliding shielding door and the shielding body to reduce the resistance when the sliding shielding door is opened and closed.

[0033] In an optional embodiment of the present application, the sliding shielding door is equipped with a self-restoring flipping mechanism, which flips with the opening and closing of the sliding shielding door, and the opening and closing of the bottom plate of the hanging basket can be achieved through the flipping of the self-restoring flipping mechanism, so as to realize automatic unloading of the device.

[0034] In an optional embodiment of the present application, it also includes a hanging basket, which is adapted to the inner cavity of the shielding body, the upper end of the hanging basket is connected to the hanging assembly, and the bottom plate of the lower end of the hanging basket is adapted to be equipped with an automatic release lock, and the locking and unlocking of the bottom plate of the hanging basket can be achieved through the cooperation of the self-resetting flipping mechanism and the automatic release lock.

[0035] In an optional embodiment of the present application, the hoisting assembly includes a lifting motor and a steel rope pulley winding, the lifting motor is used to drive the steel rope pulley winding to move, the steel rope pulley winding can lay the steel rope from the outside of the shielding body to the middle of the inner cavity of the shielding body, and the steel rope is connected to the hanging basket.

[0036] In an optional embodiment of the present application, the steel rope is connected to the hanging basket via an automatic unhooking device to facilitate automatic disconnection of the connection between the hanging basket and the steel rope.

[0037] In an optional embodiment of the present application, the lifting motor is connected to the steel rope pulley winding through a worm gear transmission mechanism to utilize the self-locking function of the worm gear transmission mechanism to ensure that free fall does not occur when external power is lost.

[0038] In an optional embodiment of the present application, a uniform winding drum mechanism is connected in series between the worm gear transmission mechanism and the steel rope pulley winding to uniformly store the steel rope.

[0039] In an optional embodiment of the present application, the worm gear transmission mechanism is connected to the uniform winding drum mechanism through a synchronization mechanism, so as to accurately control the position of the hanging basket.

[0040] In an optional embodiment of the present application, the worm gear transmission mechanism is adapted with a hand wheel to facilitate manual control of the lifting and lowering of the hanging basket.

[0041] In an optional embodiment of the present application, a fan is further included, and the air inlet end of the fan is connected to the inner cavity of the shielding body through a filter, so that when the transfer container is loaded with radioactive materials, the gas in the shielding body can be sucked by the fan to prevent the escape of possibly contaminated air in the transfer container, causing harm to personnel and the environment.

[0042] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0043] 1. The radioactive material loading and transportation device provided by the present invention comprises a shielding body, a walking assembly, a sliding shielding door and a hoisting assembly. The shielding body is provided with an openable and closed inner cavity. The walking assembly is arranged at the lower end of the shielding body, and the walking assembly can walk by itself and / or under the action of traction. The sliding shielding door is arranged at the lower end of the shielding body and can be opened and closed automatically. The hoisting assembly is arranged at the upper end of the shielding body. When the reflective material needs to be transferred, the through cavity at the lower end of the shielding body is first connected with the logistics hole of the radioactive material storage process room, the sliding shielding door is opened by remote control, and then the transfer container (hanging basket) containing the radioactive material is hoisted by the hoisting assembly. To the inner cavity of the shielding body, then remotely control to close the sliding shielding door, and transfer the transfer container to the unloading process room through the walking assembly, so as to connect the through cavity at the lower end of the shielding body with the logistics hole in the radioactive material unloading process room, and remotely control to open the sliding shielding door again, and remotely control the lifting assembly to lower the transfer container or radioactive object to the radioactive material unloading process room to automatically complete the transfer of radioactive materials. During the entire transfer process, the radioactive materials are all in the inner cavity of the shielding body, which can shield the radiation of the radioactive materials, so as to reduce the workload of transferring and loading and unloading of radioactive materials, improve work efficiency, and enhance the safety of transferring and loading and unloading of radioactive materials.

[0044] 2. The radioactive material loading and transporting device provided by the present invention can remotely control the lifting assembly to lower the transfer container or radioactive object to the radioactive material unloading process room to realize automatic unloading, which can reduce operating equipment and reduce the complexity of operation.

[0045] 3. The radioactive material loading and transporting device provided by the present invention has a walking component that can walk by itself and / or under the action of traction, which can realize automatic walking within the field, reduce transportation equipment, and enhance the adaptability of the transfer container. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative work.

[0047] In the attached picture:

[0048] Figure 1 This is a schematic diagram of the main structure of a radioactive material loading and transportation device according to an embodiment of the present invention;

[0049] Figure 2 It is a schematic diagram of the top view of the structure of the radioactive material loading and transportation device according to an embodiment of the present invention;

[0050] Figure 3 For the embodiment of the present invention Figure 2 Schematic diagram of the AA surface structure;

[0051] Figure 4 For the embodiment of the present invention Figure 1 Schematic diagram of the BB surface structure.

[0052] Reference numerals:

[0053] 1-power box, 2-lifting motor, 3-first coupling, 4-worm gear transmission mechanism, 5-synchronous belt mechanism, 6-first hand wheel, 7-uniform winding drum mechanism, 8-steel rope pulley winding, 9-shielding cylinder, 10-shielding top cover, 11-automatic unhooking device, 12-hanging basket, 13-anti-fall bracket, 14-fixed reinforcement block, 15-guide slide rod mechanism, 16-follow-up reinforcement block, 17-sliding shielding door, 18-screw pair mechanism, 19-gear pair, 20-second coupling, 2 1-steering wheel, 22-opening and closing motor, 23-shielding reinforcement enclosure, 24-shielding base, 25-self-recovering flipping mechanism, 26-automatic release lock, 27-support adjustment mechanism, 28-horizontal pulley block, 29-top box, 30-lifting ear, 31-top cover connecting bolt, 32-second hand wheel, 33-operating handle, 34-control sending and receiving box, 35-handheld operation terminal, 36-traveling wheel, 37-lifting motor, 38-traveling motor, 39-rudder, 40-filter, 41-fan. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0055] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0056] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0057] In the description of the embodiments of the present application, the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is conventionally placed when in use, or is the orientation or position relationship conventionally understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0058] In the description of this application, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] Example

[0060] Combination Figure 1-Figure 4 The present embodiment provides a radioactive material loading and transportation device, comprising: a shielding body, the shielding body being provided with an openable and closed inner cavity, and the inner cavity of the shielding body being capable of accommodating radioactive materials; a walking component, the walking component being provided at the lower end of the shielding body, and the walking component being capable of self-propelled and / or propelled under the action of traction; a sliding shielding door 17, the sliding shielding door 17 being provided at the lower end of the shielding body, and the sliding shielding door 17 being capable of automatic opening and closing, and the internal cavity of the shielding body being opened and closed by sliding the sliding shielding door 17; a hoisting component, the hoisting component being provided at the upper end of the shielding body; wherein, when the sliding shielding door 17 is opened, the hoisting component is capable of automatically hoisting materials into or out of the inner cavity of the shielding body.

[0061] Specifically, the shielding body includes: a shielding base 24, a through cavity for radioactive materials to pass through is arranged in the middle of the shielding base 24; a shielding cylinder 9, the shielding cylinder 9 is a centrally-through structure, and the shielding cylinder 9 is installed at the upper end of the shielding base 24, and the inner cavity of the shielding cylinder 9 is connected with the through cavity of the shielding base 24; a shielding top cover 10, the shielding top cover 10 is fixed at the upper end of the shielding cylinder 9; wherein the sliding shielding door 17 is installed between the shielding base 24 and the shielding cylinder 9 to perform all-round shielding of the radiation of the radioactive materials through the shielding body.

[0062] In this embodiment, an anti-falling bracket 13 is also included, and the anti-falling bracket 13 is installed on the shielding base 24. The anti-falling bracket 13 is set outside the shielding cylinder 9 to prevent the shielding body from falling during walking. Each corner of the lower end of the anti-falling bracket 13 is provided with a support adjustment mechanism, and the support adjustment mechanism can adjust the height of the corresponding corner of the anti-falling bracket 13, so as to adjust the height and balance of the shielding assembly from the ground.

[0063] At the same time, the support adjustment mechanism is adapted with a lifting motor 37 to drive the support adjustment mechanism to operate through the lifting motor 37 to achieve automatic adjustment of the support adjustment mechanism. Usually, the support adjustment mechanism is adapted with an operating handle 33 to manually adjust the support adjustment mechanism when the lifting motor 37 fails.

[0064] Recombination Figure 1 The walking assembly includes a steering wheel 21, and the steering wheel 21 is installed at the lower end of the anti-falling bracket 13, so that the walking direction of the device can be controlled by the steering wheel 21.

[0065] It is understandable that the walking assembly further includes a walking motor 38, and the walking motor 38 is in transmission connection with the steering wheel 21, so that the walking motor 38 drives the steering wheel 21 to rotate to realize the self-walking of the device. In this embodiment, the steering wheel 21 is adapted to be equipped with a rudder bar 39, and the steering wheel 21 can be manually controlled by the rudder bar 39, so as to manually control the walking direction of the device. Generally, the steering wheel 21 can be flipped and raised relative to the anti-falling bracket 13, so as to store and fold the steering wheel 21.

[0066] On this basis, the shielding body further includes a shielding reinforcement enclosure 23, which is mounted on the shielding base 24 and is arranged outside the closing position of the sliding shielding door 17 to improve the radiation shielding performance of the shielding body.

[0067] Furthermore, the shielding body also includes a fixed reinforcement block 14, and the fixed reinforcement block 14 is installed on the shielding reinforcement enclosure 23 to enhance the radiation shielding after the sliding shielding door 17 is opened.

[0068] It should be understood that the walking assembly includes a walking wheel 36, which is installed at the lower end of the fixed reinforcement block 14 to assist the self-walking of the device. It is known that the walking wheel 36 can travel in all directions, flip and lift, and brake.

[0069] Combination Figure 3 and Figure 4The sliding shielding door 17 includes two door bodies, both of which are slidably connected to the shielding body, and the two door bodies can be relatively far away or close to each other, so as to quickly open and close the inner cavity of the shielding body.

[0070] Preferably, the opposite sides of the two door bodies are multi-curvature docking structures that cooperate with each other to avoid radiation hazards caused by rays passing through the docking gap.

[0071] It can be understood that each door body is equipped with a linear drive mechanism to realize the automatic opening and closing of the sliding shielding door 17. The linear drive mechanism is a screw pair mechanism 18 to ensure that the movement of the sliding shielding door 17 is sufficiently reliable.

[0072] At the same time, the two linear drive mechanisms are driven by the same opening and closing motor 22 to simplify the structure of the device. The linear drive mechanism is connected to the opening and closing motor 22 through a gear pair 19 to facilitate the transmission connection between the opening and closing motor 22 and the screw pair mechanism 18.

[0073] Correspondingly, the linear drive mechanism is adapted with a second hand wheel 32 to manually open and close the sliding shielding door 17 in the event of a failure of the opening and closing motor 22 .

[0074] In addition, both door bodies are equipped with follower reinforcement blocks 16 to increase the radiation shielding capability of the sliding shielding door 17 .

[0075] Recombination Figure 3 A horizontal pulley set 28 is provided between the sliding shielding door 17 and the shielding body to reduce the resistance when the sliding shielding door 17 is opened and closed.

[0076] In this embodiment, the sliding shielding door 17 is equipped with a self-restoring flipping mechanism 25, which flips with the opening and closing of the sliding shielding door 17, and the flipping of the self-restoring flipping mechanism 25 can realize the opening and closing of the bottom plate of the hanging basket 12, so as to realize automatic unloading of the device.

[0077] Correspondingly, the present embodiment also includes a hanging basket 12, which is adapted to the inner cavity of the shielding body, the upper end of the hanging basket 12 is connected to the lifting assembly, and the bottom plate of the lower end of the hanging basket 12 is adapted to be equipped with an automatic release lock 26. The bottom plate of the hanging basket 12 can be locked and unlocked by the cooperation of the self-resetting flipping mechanism 25 and the automatic release lock 26.

[0078] Continue to combine Figure 3The hoisting assembly includes a lifting motor 2 and a steel rope pulley winding 8. The lifting motor 2 is used to drive the steel rope pulley winding 8 to move. The steel rope pulley winding 8 can lay the steel rope from the outside of the shielding body to the middle of the inner cavity of the shielding body. The steel rope is connected to the hanging basket 12.

[0079] In this embodiment, the steel rope is connected to the hanging basket 12 via an automatic unhooking device 11, so as to realize automatic disconnection of the connection between the hanging basket 12 and the steel rope.

[0080] It should be noted that the lifting motor 2 is connected to the rope pulley winding 8 through the worm gear transmission mechanism 4 to utilize the self-locking function of the worm gear transmission mechanism 4 to ensure that free fall does not occur when external power is lost.

[0081] Generally speaking, a uniform winding drum mechanism 7 is connected in series between the worm gear transmission mechanism 4 and the steel rope pulley winding 8 to uniformly store the steel rope.

[0082] In this embodiment, the worm gear transmission mechanism 4 is connected to the uniform winding drum mechanism 7 through a synchronization mechanism, so as to accurately control the position of the hanging basket 12.

[0083] Likewise, the worm gear transmission mechanism 4 is adapted with a hand wheel to facilitate manual control of the lifting and lowering of the hanging basket 12 .

[0084] Furthermore, the present embodiment also includes a fan 41, the air inlet end of which is connected to the inner cavity of the shielding body through a filter 40, so that when the transfer container is loaded with radioactive materials, the gas in the shielding body is sucked by the fan 41 to prevent the escape of possibly contaminated air in the transfer container, causing harm to personnel and the environment.

[0085] In summary, the radioactive material loading and transportation device provided in this embodiment includes a power box 1, a lifting motor 2, a first coupling 3, a worm gear transmission mechanism 4, a synchronous belt mechanism 5, a first hand wheel 6, a uniform winding drum mechanism 7, a steel rope pulley winding 8, a shielding cylinder 9, a shielding top cover 10, an automatic unhooking device 11, a hanging basket 12, an anti-falling bracket 13, a fixed reinforcement block 14, a guide slide rod mechanism 15, a follower reinforcement block 16, a sliding shielding door 17, a screw pair mechanism 18, and a gear Pair 19, second coupling 20, steering wheel 21, double opening and closing motor 22, shield reinforcement enclosure 23, shield base 24, self-restoring flip mechanism 25, automatic trip lock 26, support adjustment mechanism 27, horizontal pulley block 28, top box 29, lifting lug 30, top cover connecting bolt 31, second hand wheel 32, operating handle 33, control sending and receiving box 34, handheld operation terminal 35, walking wheel 36, lifting motor 37, walking motor 38, rudder 39, filter 40, fan 41. Among them:

[0086] The shielding cylinder 9, shielding top cover 10, fixed reinforcement block 14, follower reinforcement block 16, sliding shielding door 17, shielding reinforcement enclosure 23 and shielding base 24 constitute the basic shielding enclosure and loading space of the transfer container.

[0087] The power box 1 is installed on the middle annular plate of the anti-falling bracket 13, close to the outer wall of the shielding cylinder 9, and adopts a rechargeable lithium battery to provide the power required for the lifting motor 2, the opening and closing motor 22 (dual output motor), the lifting motor 37, the walking motor 38, the rudder 39, the fan 41, the operating panel and the control transceiver box 34.

[0088] The lifting motor 2 is installed on the shielding top cover 10, connected to the worm gear transmission mechanism 4 through the first coupling 3, and drives the uniform winding drum mechanism 7 to rotate, collect or release the steel rope, and the steel rope is connected to the automatic unhooking device 11 through the steel rope pulley winding 8, so as to realize the lifting and lowering of the automatic unhooking device 11 or the hanging basket 12. The worm gear transmission mechanism 4 has a self-locking function to ensure that free fall will not occur under the condition of losing external power.

[0089] The top box 29 is installed on the shielding top cover 10, and can provide radiation protection for the power box 1, the lifting motor 2, the first coupling 3, the worm gear transmission mechanism 4, the synchronous belt mechanism 5, the uniform winding drum mechanism 7, etc.

[0090] The wire rope pulley winding 8 is used to change the direction of the wire rope to avoid straight-through penetration of the hole, ensure the upper shielding safety, and at the same time reduce the friction of the wire rope, reduce the lifting torque, and increase the service life of the wire rope.

[0091] The uniform winding drum mechanism 7 is installed on the shielding top cover 10. When the drum rotates, the steel rope is pulled by reciprocating the slider, so that the steel rope is evenly wound on the drum.

[0092] The synchronous belt mechanism 5 rotates synchronously with the worm gear transmission mechanism 4 to control the lifting distance. Specifically, the high position signal and the low position signal of the automatic unhooking device 11 are measured by the sensor, and the receiving and sending box 34 is controlled to realize the parking control when it is lifted to the high position and the low position according to the signal.

[0093] The automatic unhooking device 11 has an automatic unhooking function. When the hanging basket 12 or other items are mounted and in a suspended state, it has a safety self-locking function. When the hanging basket 12 or other items are placed on the receiving platform, it can be automatically unlocked and unhooked.

[0094] The first hand wheel 6 is connected to the worm gear transmission mechanism 4 and is used for manually operating the automatic unhooking device 11 or the lifting and lowering of the hanging basket 12 when the motor loses power or fails.

[0095] The anti-fall bracket 13 is installed on the shielding cylinder 9 and the shielding base 24 to prevent the transfer container from falling over. It is also used for the installation of the guide slide mechanism 15, the screw pair mechanism 18, the steering wheel 21 and the support adjustment mechanism 27.

[0096] The sliding shielding door 17 is installed on the shielding base 24 and the shielding cylinder 9, and is driven by the opening and closing motor 22. The sliding shielding door 17 adopts a two-way opening and closing wavy docking structure for shielding in the bottom and side directions. The wavy docking structure avoids the radiation hazard caused by the passage of rays through the docking gap, thereby achieving effective shielding in the bottom direction.

[0097] The fixed reinforcement block 14 is installed on the shielding reinforcement enclosure 23, and is used to reinforce the radiation shielding caused by the thinning of the structure after the sliding shielding door 17 is pulled out. The following reinforcement block 16 is installed on the sliding shielding door 17, and is used to reinforce the shielding of the upper and lower gaps of the sliding shielding door 17. Therefore, the combination composed of the shielding cylinder 9, the shielding top cover 10, the fixed reinforcement block 14, the following reinforcement block 16, the sliding shielding door 17 and the shielding reinforcement enclosure 23 blocks the radiation generated by the radioactive materials at any position in the transfer container in the circumferential direction and the upper and lower oblique directions, and realizes shielding protection in all directions.

[0098] The screw pair mechanism 18, the gear pair 19, the second coupling 20 and the opening and closing motor 22 constitute the driving and transmission mechanism of the sliding shielding door 17, which can drive the follow-up reinforcement block 16 and the sliding shielding door 17 to move horizontally back and forth; the dual-output motor can drive the sliding shielding doors 17 at both ends to move simultaneously and maintain the synchronization of their movements.

[0099] The steering wheel 21 is installed on the anti-falling bracket 13, driven by the travel motor 38, can be flipped and raised, and operated by operating the rudder bar 39 and its corresponding operation panel. It is used for operation drive and direction control when the transfer container is transferred within the factory building, and can also be used when the transfer container is docked with a logistics hole.

[0100] The travel wheel 36 is installed on the fixed reinforcement block 14, and has universal travel, flip lifting and braking functions. It can be used when transferring within the factory building, and can also be used when the transfer container is connected to the logistics hole.

[0101] The second hand wheel 32 is connected to the screw pair mechanism 18 and is used for manually operating the follower reinforcement block 16 and the sliding shield door 17 to achieve horizontal reciprocating motion when the motor loses power or fails.

[0102] The guide slide bar mechanism 15 is installed on the anti-fall bracket 13 and the shielding reinforcement enclosure 23, and the sliding sleeve connected to the follower reinforcement block 16 reciprocates horizontally along the slide bar of the guide slide bar mechanism 15, thereby realizing the movement guidance of the follower reinforcement block 16 and the sliding shielding door 17.

[0103] The through cavity in the middle of the shielding base 24 is used to connect to the logistics hole in the radioactive material storage process room, and the shielding reinforcement enclosure 23 is used to reinforce the structural thinning of the transfer container.

[0104] The self-restoring turning mechanism 25 is installed on the sliding shielding door 17 and can turn over with the in and out movement of the sliding shielding door 17 to cooperate with the opening and closing of the bottom plate of the hanging basket 12.

[0105] The automatic release lock 26 is a structural member of the hanging basket 12, and is used for locking and releasing the bottom plate of the hanging basket 12. The initial state is the locked state. When needed, the hanging basket 12 descends to touch the self-restoring flip mechanism 25, and then the sliding shield door 17 is opened, and the bottom plate of the hanging basket 12 is automatically opened to release the materials in the hanging basket 12. After closing the sliding shield door 17, the bottom plate of the hanging basket 12 is automatically locked.

[0106] The horizontal pulley block 28 includes an upper and a lower part, which are respectively embedded and installed on the shielding cylinder 9 and the shielding base 24, and are used to reduce the friction resistance of the sliding shielding door 17, thereby reducing its driving torque.

[0107] The support adjustment mechanism 27 is installed on the anti-fall bracket 13 and driven by the jacking motor 37 to adjust the height and balance of the transfer container from the ground. The operating handle 33 of the support adjustment mechanism 27 is used to manually adjust the height and balance of the support adjustment mechanism 27 when the motor loses power or fails.

[0108] The filter 40, the fan 41 and the connecting pipes constitute an exhaust unit, which is installed in the top box 29 on the top of the transfer container. The lower part is connected to the internal space of the transfer container, and the upper part is a pipe opening, which is used for air discharge and purification and filtration of the transfer container to prevent the escape of possibly contaminated air in the container and cause harm to personnel and the environment.

[0109] The control transceiver box 34 is installed on the middle annular plate of the anti-falling bracket 13, close to the outer wall of the shielding cylinder 9, and is used to load control components and wireless signal antennas, etc. It is the "nerve center" of the transfer container and can realize remote control; when the control transceiver box 34 is in operation, it sends and receives control signals, runs control instructions, and drives the lifting motor 2 and the opening and closing motor 22 to operate; the control transceiver box 34 can provide functions such as power indication, operation indication and fault indication.

[0110] The handheld operation terminal 35 has the functions of issuing instructions and indicating power supply, power quantity, operation, position and faults, and can analyze and provide prompts for equipment maintenance and fault troubleshooting.

[0111] When in use, first take out the transfer container from the equipment storage room, turn on the power of the transport device, turn on the power of the handheld operation terminal 35, and check the initial status.

[0112] When reflective materials need to be transferred, first dock the through cavity at the lower end of the shielding body with the logistics hole in the radioactive material storage process room, remotely control to open the sliding shielding door 17, remotely control to lower the hanging basket 12 or the automatic unhooker 11 to the radioactive material storage process room, grab or load the radioactive materials (when grabbing the whole object, the hanging basket 12 is not needed); remotely control to lift the hanging basket 12 or the automatic unhooker 11, and when the hanging basket 12 or the automatic unhooker 11 rises to the highest position (at this time, the entire transfer container has been loaded), the transfer container (hanging basket 12) containing the radioactive materials is hoisted into the inner cavity of the shielding body through the hoisting assembly.

[0113] When the material is completely located in the inner cavity of the screen body, the sliding shielding door 17 is closed by remote control, and the transfer container is transferred to the unloading process room through the walking assembly to connect the through cavity at the lower end of the shielding body with the logistics hole in the radioactive material unloading process room, and the sliding shielding door 17 is opened by remote control again, and the hanging basket 12 or radioactive object is remotely lowered to the radioactive material unloading process room, and automatically unhooked to unload, or the automatic release lock 26 of the hanging basket 12 is used to open the bottom plate of the hanging basket 12 to unload, that is, the lifting assembly is remotely controlled to lower the transfer container or radioactive object to the radioactive material unloading process room to automatically complete the transfer of radioactive materials.

[0114] During the transfer process, in order to prevent the possible contaminated air in the transfer container from escaping and causing harm to personnel and the environment, the fan 41 is remotely started to discharge the air in the transfer container through the filter 40 until the transfer and unloading are completed, and then the fan 41 is remotely shut down. After the transfer operation is completed, the power supply of the transfer container is turned off, the power supply of the handheld operation terminal 35 is turned off, and the transfer container is transferred to the equipment storage room for storage.

[0115] During the entire transportation process, the radioactive materials are all in the inner cavity of the shielding body, which can shield the radiation of the radioactive materials.

[0116] If it is necessary to use the internal site transfer operation function of the factory building or to cooperate with the docking logistics holes, first start the jacking motor 37, adjust the support adjustment mechanism 27 to the maximum height, then remove the locking bolt, and put the steering wheel 21 and the walking wheel 36 to the operating posture, insert the locking bolt to fix it, start the walking motor 38, use the rudder 39 and its corresponding operating panel to control the operation of the steering wheel 21, and operate the transfer container to move.

[0117] In summary, the radioactive material loading and transportation device provided in this embodiment can realize the automatic transfer and loading and unloading of radioactive materials, shield the radiation of radioactive materials during the transfer process, so as to reduce the workload of transferring and loading and unloading radioactive materials, improve work efficiency, and enhance the safety of transferring and loading and unloading radioactive materials.

[0118] Therefore, the radioactive material loading and transportation device provided in this embodiment can be used in nuclear reactors and their research facilities, radioactive scientific research experimental facilities, radioactive waste treatment facilities, nuclear fuel production facilities, spent fuel reprocessing facilities, radioactive isotope production facilities, radioactive pharmaceutical product production facilities and other places.

[0119] It should be understood that the above description is only a specific implementation mode of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A radioactive material loading and transport device, characterized in that: include: A shielding body, wherein the shielding body is provided with an openable and closed inner cavity, and the inner cavity of the shielding body is capable of accommodating radioactive materials; A walking assembly, which is arranged at the lower end of the shielding body and can walk by itself and / or under the action of traction; A sliding shielding door (17), the sliding shielding door (17) being arranged at the lower end of the shielding body, and the sliding shielding door (17) being capable of opening and closing automatically, and the internal cavity of the shielding body being capable of opening and closing by sliding the sliding shielding door (17); A hanging assembly, wherein the hanging assembly is arranged at the upper end of the shielding body; Wherein, when the sliding shielding door (17) is opened, the hoisting assembly can automatically hoist materials into or out of the inner cavity of the shielding body.

2. The radioactive material loading and transporting device according to claim 1, characterized in that: The shielding body comprises: A shielding base (24), wherein a through cavity for radioactive materials to pass through is provided in the middle of the shielding base (24); A shielding cylinder (9), the shielding cylinder (9) being a through structure, the shielding cylinder (9) being mounted on the upper end of the shielding base (24), and the inner cavity of the shielding cylinder (9) being in communication with the through cavity of the shielding base (24); A shielding top cover (10), wherein the shielding top cover (10) is fixed to the upper end of the shielding cylinder (9); Wherein, the sliding shielding door (17) is installed between the shielding base (24) and the shielding cylinder (9).

3. The radioactive material loading and transporting device according to claim 2, characterized in that: It also includes an anti-falling bracket (13), wherein the anti-falling bracket (13) is installed on the shielding base (24), and the anti-falling bracket (13) is erected outside the shielding cylinder (9).

4. The radioactive material loading and transporting device according to claim 3, characterized in that: Each corner portion at the lower end of the anti-falling bracket (13) is provided with a support adjustment mechanism, and the support adjustment mechanism can adjust the height of the corresponding corner portion of the anti-falling bracket (13).

5. The radioactive material loading and transporting device according to claim 4, characterized in that: The support adjustment mechanism is adapted to be equipped with a lifting motor (37) so as to drive the support adjustment mechanism to move via the lifting motor (37).

6. The radioactive material loading and transporting device according to claim 4, characterized in that: The support adjustment mechanism is adapted to be equipped with an operating handle (33).

7. The radioactive material loading and transporting device according to claim 3, characterized in that: The walking assembly comprises a steering wheel (21), and the steering wheel (21) is installed at the lower end of the anti-fall bracket (13).

8. The radioactive material loading and transporting device according to claim 7, characterized in that: The travel assembly further comprises a travel motor (38), and the travel motor (38) is transmission-connected to the steering wheel (21).

9. The radioactive material loading and transporting device according to claim 7, characterized in that: The steering wheel (21) is adapted to be equipped with a rudder bar (39), and the steering wheel (21) can be manually controlled via the rudder bar (39).

10. The radioactive material loading and transporting device according to claim 7, characterized in that: The steering wheel (21) can be turned over and raised relative to the anti-falling bracket (13).

11. The radioactive material loading and transporting device according to claim 7, characterized in that: The shielding body also includes a shielding reinforcement enclosure (23), which is installed on the shielding base (24) and is arranged outside the closing position of the sliding shielding door (17).

12. The radioactive material loading and transporting device according to claim 11, characterized in that: The shielding body also includes a fixed reinforcement block (14), and the fixed reinforcement block (14) is installed on the shielding reinforcement enclosure (23).

13. The radioactive material loading and transporting device according to claim 12, characterized in that: The walking assembly comprises a walking wheel (36), and the walking wheel (36) is installed at the lower end of the fixed reinforcement block (14).

14. The radioactive material loading and transporting device according to claim 12, characterized in that: The travel wheels (36) are capable of universal travel, overturning, lifting and braking.

15. The radioactive material loading and transporting device according to claim 12, characterized in that: The sliding shielding door (17) comprises two door bodies, both of which are slidably connected to the shielding main body, and the two door bodies can be relatively separated or moved towards each other.

16. The radioactive material loading and transporting device according to claim 15, characterized in that: The opposite sides of the two door bodies are multi-curvature docking structures that cooperate with each other.

17. The radioactive material loading and transporting device according to claim 15, characterized in that: Each of the door bodies is adapted to be equipped with a linear drive mechanism.

18. The radioactive material loading and transporting device according to claim 17, characterized in that: The linear drive mechanism is a screw pair mechanism (18).

19. The radioactive material loading and transporting device according to claim 18, characterized in that: The two linear drive mechanisms are driven by the same opening and closing motor (22).

20. The radioactive material loading and transporting device according to claim 18, characterized in that: The linear drive mechanism is transmission-connected to the opening and closing motor (22) via a gear pair (19).

21. The radioactive material loading and transporting device according to claim 18, characterized in that: The linear drive mechanism is adapted to be equipped with a second hand wheel (32).

22. The radioactive material loading and transporting device according to claim 15, characterized in that: The two door bodies are both equipped with follower reinforcement blocks (16).

23. The radioactive material loading and transporting device according to claim 15, characterized in that: A horizontal pulley block (28) is provided between the sliding shielding door (17) and the shielding body.

24. The radioactive material loading and transporting device according to claim 15, characterized in that: The sliding shielding door (17) is equipped with a self-restoring turning mechanism (25), and the self-restoring turning mechanism (25) turns along with the opening and closing of the sliding shielding door (17), and the bottom plate of the hanging basket (12) can be opened and closed by turning over the self-restoring turning mechanism (25).

25. The radioactive material loading and transporting device according to claim 24, characterized in that: It also includes a hanging basket (12), the hanging basket (12) is adapted to the inner cavity of the shielding body, the upper end of the hanging basket (12) is connected to the hanging assembly, and the bottom plate of the lower end of the hanging basket (12) is adapted to be equipped with an automatic release lock (26), and the bottom plate of the hanging basket (12) can be locked and unlocked through the cooperation of the self-resetting flipping mechanism (25) and the automatic release lock (26).

26. The radioactive material loading and transporting device according to claim 24, characterized in that: The hoisting assembly comprises a lifting motor (2) and a steel rope pulley winding (8), wherein the lifting motor (2) is used to drive the steel rope pulley winding (8) to move, and the steel rope pulley winding (8) can lay a steel rope from the outside of the shielding body to the middle of the inner cavity of the shielding body, and the steel rope is connected to the hanging basket (12).

27. The radioactive material loading and transporting device according to claim 26, characterized in that: The steel rope is connected to the hanging basket (12) via an automatic unhooking device (11).

28. The radioactive material loading and transporting device according to claim 26, characterized in that: The lifting motor (2) is connected to the steel rope pulley winding (8) via a worm gear transmission mechanism (4).

29. The radioactive material loading and transporting device according to claim 28, characterized in that: A uniform winding drum mechanism (7) is connected in series between the turbine worm gear transmission mechanism (4) and the steel rope pulley winding (8).

30. The radioactive material loading and transporting device according to claim 29, characterized in that: The turbine worm gear transmission mechanism (4) is transmission-connected to the uniform winding drum mechanism (7) via a synchronization mechanism.

31. The radioactive material loading and transporting device according to claim 28, characterized in that: The worm gear transmission mechanism (4) is adapted to be equipped with a hand wheel.

32. The radioactive material loading and transporting device according to any one of claims 1 to 31, characterized in that: It also includes a fan (41), the air inlet end of the fan (41) being in communication with the inner cavity of the shielding body through a filter (40).

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