A radioactive material loading and transport device

Abstract

The present application relates to radioactive material transfer equipment technical field, specifically to a kind of radioactive material loading and transporting device, comprising: shielding main body, the shielding main body is provided with the closed inner cavity of open, and the inner cavity of the shielding main body can accommodate radioactive material;Walking component, the walking component is set in the lower end of the shielding main body, and the walking component can walk and / or walk under the action of traction force;Sliding shielding door, the sliding shielding door is set in the lower end of the shielding main body, and the inner cavity of the shielding main body can be opened and closed by the sliding of the sliding shielding door;Hoisting assembly, the hoisting assembly is set in the upper end of the shielding main body;Wherein, in the case where the sliding shielding door is opened, the hoisting assembly can automatically hoist material into or hoist out the inner cavity of the shielding main body.The present application can realize the automatic transfer and handling of radioactive material, to enhance the safety of radioactive material transfer and handling.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of radioactive material transfer equipment, and particularly relates to a radioactive material loading and transporting device. BACKGROUND

[0002] In nuclear reactors and their research facilities, radioactive scientific research and experiment facilities, radioactive three-waste treatment facilities, nuclear fuel production facilities, spent fuel reprocessing facilities, radioactive isotope production facilities, radioactive medical product production facilities and the like, the transfer of radioactive materials is generally involved. Generally, the radioactive materials involved have the characteristic of high radioactivity level, and in some special scenarios, local shielding measures need to be taken to protect the safety of workers.

[0003] The existing radioactive material transfer container basically only considers the shielding function of the main operation surface, and the loading and unloading of materials is basically manually operated, which is not in line with the principle of humanization, seriously affects the work efficiency, and there are certain safety hazards in the operation and transfer process. At the same time, due to the certain radioactivity level of some environments, conventional radioactive material transfer containers cannot be used for radioactive material transfer and loading and unloading in these radioactive places where personnel are restricted from entering. SUMMARY

[0004] In view of the technical problem that the existing radioactive material transfer container needs to be manually loaded and unloaded, the present application provides a radioactive material loading and transporting device, which can realize the automatic transfer and loading and unloading of radioactive materials, shield the rays of radioactive materials during transfer, 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 application is realized by the following technical scheme:

[0006] The present application provides a radioactive material loading and transporting device, which comprises: a shielding main body, the shielding main body is provided with a closed inner cavity which can be opened, and the inner cavity of the shielding main body can accommodate radioactive materials; a walking assembly, the walking assembly is arranged at the lower end of the shielding main body, and the walking assembly can walk by itself and / or under the action of traction force; a sliding shielding door, the sliding shielding door is arranged at the lower end of the shielding main body, and the sliding shielding door can be automatically opened and closed, and the inner cavity of the shielding main body can be opened and closed by sliding the sliding shielding door; a hoisting assembly, the hoisting assembly is arranged at the upper end of the shielding main body; wherein, in the case that the sliding shielding door is opened, the hoisting assembly can automatically hoist the materials into or out of the inner cavity of the shielding main body.

[0007] The radioactive material loading and transporting device provided by the application comprises a shielding main body, a walking assembly, a sliding shielding door and a hoisting assembly, the shielding main body is provided with a closed inner cavity which can be opened, the walking assembly is arranged at the lower end of the shielding main body and can walk by itself and / or under the action of traction force, the sliding shielding door is arranged at the lower end of the shielding main body and can be automatically opened and closed, and the hoisting assembly is arranged at the upper end of the shielding main body.

[0008] When the radioactive material needs to be transferred, the through cavity at the lower end of the shielding main body is first connected with the material flow hole between the radioactive material storage process room and the radioactive material unloading process room, the sliding shielding door is remotely controlled to be opened, then the transfer container (a hanging basket) containing the radioactive material is hoisted into the inner cavity of the shielding main body through the hoisting assembly, the sliding shielding door is remotely controlled to be closed again, the transfer container is transferred to the unloading process room through the walking assembly, the through cavity at the lower end of the shielding main body is connected with the material flow hole between the radioactive material unloading process room, the sliding shielding door is remotely controlled to be opened again, and the hoisting assembly is remotely controlled to lower the transfer container or the radioactive object to the radioactive material unloading process room, so that the automatic transfer of the radioactive material is completed.

[0009] During the whole transfer process, the radioactive material is in the inner cavity of the shielding main body, and the radiation of the radioactive material can be shielded.

[0010] Therefore, the radioactive material loading and transporting device provided by the application can realize the automatic transfer and loading and unloading of the radioactive material, shield the radiation of the radioactive material during the transfer process, reduce the work intensity of the transfer and loading and unloading of the radioactive material, improve the work efficiency, and enhance the safety of the transfer and loading and unloading of the radioactive material.

[0011] In an optional embodiment of the application, the shielding main body comprises a shielding base, a through cavity for the radioactive material passing through is arranged in the middle of the shielding base, a shielding cylinder is arranged on the upper end of the shielding base and has a through structure, the inner cavity of the shielding cylinder is in communication with the through cavity of the shielding base, and a shielding top cover is fixed on the upper end of the shielding cylinder.

[0012] In an optional embodiment of the application, an anti-falling support is arranged on the shielding base and arranged outside the shielding cylinder to prevent the shielding main body from falling during walking.

[0013] In an optional embodiment of the application, a support adjusting mechanism is arranged at each corner of the lower end of the anti-falling support to adjust the height of the corresponding corner of the anti-falling support, so as to adjust the ground clearance and balance of the shielding assembly.

[0014] In an alternative embodiment of the present application, the support adjusting mechanism is adapted with a jacking motor, so as to drive the support adjusting mechanism to act by the jacking motor, to realize automatic adjustment of the support adjusting mechanism.

[0015] In an alternative embodiment of the present application, the support adjusting mechanism is adapted with an operating handle, so as to manually adjust the support adjusting mechanism in case of jacking motor failure.

[0016] In an alternative embodiment of the present application, the walking assembly comprises a rudder wheel, which is installed at the lower end of the anti-falling support, so as to facilitate control of the walking direction of the device by the rudder wheel control device.

[0017] In an alternative embodiment of the present application, the walking assembly further comprises a walking motor, which is in transmission connection with the rudder wheel, so as to realize self-walking of the device by self-rotation of the rudder wheel driven by the walking motor.

[0018] In an alternative embodiment of the present application, the rudder wheel is adapted with a rudder lever, by which the rudder wheel can be manually controlled, so as to manually control the walking direction of the device.

[0019] In an alternative embodiment of the present application, the rudder wheel can be flipped and lifted relative to the anti-falling support, so as to be stowed and folded.

[0020] In an alternative embodiment of the present application, the shielding body further comprises a shielding reinforcing enclosure, which is installed on the shielding base, and the shielding enclosure is arranged outside the closed door of the sliding shielding door, so as to improve the radiation shielding performance of the shielding body.

[0021] In an alternative embodiment of the present application, the shielding body further comprises a fixed reinforcing block, which is installed on the shielding reinforcing enclosure, so as to enhance the radiation shielding after the sliding shielding door is opened.

[0022] In an alternative embodiment of the present application, the walking assembly comprises a walking wheel, which is installed at the lower end of the fixed reinforcing block, to assist in realizing self-walking of the device.

[0023] In an alternative embodiment of the present application, the walking wheel can be omni-directionally walked, flipped and lifted, and braked.

[0024] In an alternative embodiment of the present application, the sliding shielding door comprises two door bodies, both of which are in sliding connection with the shielding body, and both of which can be relatively away from or close to each other, so as to quickly open and close the inner cavity of the shielding body.

[0025] In an alternative embodiment of the present application, the opposite sides of the two door bodies are provided with a multi-curvature abutting structure to avoid radiation hazards caused by the penetration of rays through the abutting gap.

[0026] In an alternative embodiment of the present application, each of the door bodies is provided with a linear driving mechanism to realize automatic opening and closing of the sliding shielding door.

[0027] In an alternative embodiment of the present application, the linear driving mechanism is a screw pair mechanism to ensure sufficient reliability of the sliding shielding door.

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

[0029] In an alternative embodiment of the present application, the linear driving mechanism is in transmission connection with the opening and closing motor through a gear pair to facilitate transmission connection between the opening and closing motor and the screw pair mechanism.

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

[0031] In an alternative embodiment of the present application, each of the door bodies is provided with a follow-up reinforcing block to increase the radiation shielding capacity of the sliding shielding door.

[0032] In an alternative embodiment of the present application, a horizontal pulley block is arranged 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 alternative embodiment of the present application, a self-recovery overturning mechanism is installed on the sliding shielding door, which overturns with the opening and closing of the sliding shielding door, and the opening and closing of the basket bottom plate can be realized through the overturning of the self-recovery overturning mechanism, so as to realize automatic unloading of the device.

[0034] In an alternative embodiment of the present application, a basket is further included, which is adapted to the inner cavity of the shielding body, the upper end of the basket is connected with the hoisting assembly, and the bottom plate of the lower end of the basket is provided with an automatic release lock, and the locking and unlocking of the basket bottom plate can be realized through the cooperation of the self-recovery overturning mechanism and the automatic release lock.

[0035] In an alternative 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 act, the steel rope pulley winding can arrange the steel rope from the outside of the shielding body to the middle part of the inner cavity of the shielding body, and the steel rope is connected with the basket.

[0036] In an alternative embodiment of the present application, the steel cable and the basket are connected through an automatic unhooking device to facilitate automatic disconnection between the basket and the steel cable.

[0037] In an alternative embodiment of the present application, the lifting motor is drivingly connected with the steel cable pulley winding through a worm and gear transmission mechanism to ensure that free falling does not occur under the condition of losing external power by using the self-locking function of the worm and gear transmission mechanism.

[0038] In an alternative embodiment of the present application, a uniform winding reel mechanism is connected in series between the worm and gear transmission mechanism and the steel cable pulley winding to uniformly accommodate the steel cable.

[0039] In an alternative embodiment of the present application, the worm and gear transmission mechanism is drivingly connected with the uniform winding reel mechanism through a synchronization mechanism to facilitate accurate control of the position of the basket.

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

[0041] In an alternative embodiment of the present application, a fan is further included, and an air inlet end of the fan is communicated with the inner cavity of the shielding main body through a filter to suck the gas in the shielding main body through the fan when the transfer container is loaded with radioactive materials, so as to avoid the escape of the possibly contaminated air in the transfer container to cause harm to the personnel and the environment.

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

[0043] 1. The radioactive material loading and transporting device provided by the present application comprises a shielding main body, a walking assembly, a sliding shielding door and a hoisting assembly, the shielding main body is provided with a closed inner cavity which can be opened, the walking assembly is arranged at the lower end of the shielding main body and can walk by itself and / or under the action of traction force, the sliding shielding door is arranged at the lower end of the shielding main body and can be automatically opened and closed, and the hoisting assembly is arranged at the upper end of the shielding main body. When the radioactive material needs to be transferred, the through cavity at the lower end of the shielding main body is first connected with the material flow hole of the radioactive material storage process room, the sliding shielding door is remotely controlled to be opened, then the transfer container (a hanging basket) containing the radioactive material is hoisted into the inner cavity of the shielding main body by the hoisting assembly, the sliding shielding door is remotely controlled to be closed again, the transfer container is transferred to the unloading process room by the walking assembly, the through cavity at the lower end of the shielding main body is connected with the material flow hole of the radioactive material unloading process room, the sliding shielding door is remotely controlled to be opened again, and the hoisting assembly is remotely controlled to lower the transfer container or the radioactive object to the radioactive material unloading process room, so as to automatically complete the transfer of the radioactive material. During the whole transfer process, the radioactive material is in the inner cavity of the shielding main body and can shield the radiation of the radioactive material, thereby reducing the work intensity of the transfer and loading and unloading of the radioactive material, improving the work efficiency and enhancing the safety of the transfer and loading and unloading of the radioactive material.

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

[0045] 3. The radioactive material loading and transporting device provided by the present application can walk by itself and / or under the action of traction force, can realize automatic walking in the field, reduces the transporting equipment, and enhances the adaptability of the transfer container. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0047] In the drawings:

[0048] Figure 1 It is a front view structural schematic diagram of the radioactive material loading and transporting device of the present application.

[0049] Figure 2 It is a top view structural schematic diagram of the radioactive material loading and transporting device of the present application.

[0050] Figure 3 A-A plane structure schematic diagram of the embodiment of the present application Figure 2 A-A plane structure schematic diagram of the embodiment of the present application

[0051] Figure 4 B-B plane structure schematic diagram of the embodiment of the present application Figure 1 B-B plane structure schematic diagram of the embodiment of the present application

[0052] Reference signs:

[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 reel mechanism, 8 - steel rope pulley winding, 9 - shielding cylinder, 10 - shielding top cover, 11 - automatic unhooking device, 12 - hanging basket, 13 - anti-falling support, 14 - fixed reinforcing block, 15 - guide sliding rod mechanism, 16 - follow-up reinforcing block, 17 - sliding shielding door, 18 - screw rod pair mechanism, 19 - gear pair, 20 - second coupling, 21 - rudder wheel, 22 - opening and closing motor, 23 - shielding reinforcing fence, 24 - shielding base, 25 - self-recovery overturning mechanism, 26 - automatic tripping lock, 27 - support adjusting mechanism, 28 - horizontal pulley block, 29 - top box, 30 - lifting lug, 31 - top cover connecting bolt, 32 - second hand wheel, 33 - operation handle, 34 - control transceiver box, 35 - handheld operation terminal, 36 - traveling wheel, 37 - jacking motor, 38 - traveling motor, 39 - rudder rod, 40 - filter, 41 - fan. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein 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 drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0056] It should be noted that: similar reference signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0057] In the description of the embodiments of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0058] In the description of the present application, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] Embodiments

[0060] In combination Figures 1-4 , the present embodiment provides a radioactive material loading and transporting device, comprising: a shielding main body, the shielding main body is provided with a closed inner cavity which can be opened, and the inner cavity of the shielding main body can accommodate radioactive material; a walking assembly, the walking assembly is arranged at the lower end of the shielding main body, and the walking assembly can walk by itself and / or under the action of traction force; a sliding shielding door 17, the sliding shielding door 17 is arranged at the lower end of the shielding main body, and the sliding shielding door 17 can be automatically opened and closed, and the inner cavity of the shielding main body can be opened and closed through the sliding of the sliding shielding door 17; a hoisting assembly, the hoisting assembly is arranged at the upper end of the shielding main body; wherein, in the case that the sliding shielding door 17 is opened, the hoisting assembly can automatically hoist the material into or out of the inner cavity of the shielding main body.

[0061] Specifically, the shielding main body comprises: a shielding base 24, the shielding base 24 is provided with a through cavity in the middle for radioactive material to pass through; a shielding cylinder 9, the shielding cylinder 9 is a 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 in communication 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, so as to shield the rays of the radioactive material in all directions through the shielding main body.

[0062] In the embodiment, a falling-preventing support 13 is further included, which is installed on the shielding base 24 and arranged outside the shielding cylinder 9 to prevent the shielding body from falling during walking. The lower end of each corner of the falling-preventing support 13 is provided with a support adjusting mechanism, which can adjust the height of the corresponding corner of the falling-preventing support 13 to adjust the ground clearance and balance of the shielding assembly.

[0063] Meanwhile, the support adjusting mechanism is adapted with a jacking motor 37 to drive the support adjusting mechanism to act through the jacking motor 37 to realize automatic adjustment of the support adjusting mechanism. Generally, the support adjusting mechanism is adapted with an operating handle 33 to manually adjust the support adjusting mechanism when the jacking motor 37 fails.

[0064] Again in combination Figure 1 The walking assembly includes a rudder wheel 21 installed at the lower end of the falling-preventing support 13 to control the walking direction of the device through the rudder wheel 21.

[0065] It can be understood that the walking assembly further includes a walking motor 38 in driving connection with the rudder wheel 21 to drive the rudder wheel 21 to rotate through the walking motor 38 to realize self-walking of the device. In the embodiment, the rudder wheel 21 is adapted with a rudder rod 39, through which the rudder wheel 21 can be manually controlled to control the walking direction of the device. Generally, the rudder wheel 21 can be flipped and lifted relative to the falling-preventing support 13 to be stored and folded.

[0066] On this basis, the shielding body further includes a shielding reinforcing fence 23 installed on the shielding base 24 and arranged outside the closed door of the sliding shielding door 17 to improve the radiation shielding performance of the shielding body.

[0067] Further, the shielding body further includes a fixed reinforcing block 14 installed on the shielding reinforcing fence 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 installed at the lower end of the fixed reinforcing block 14 to assist in realizing self-walking of the device. It can be known that the walking wheel 36 can be universally walked, flipped and lifted, and braked.

[0069] In combination Figure 3 and Figure 4The sliding shielding door 17 comprises two door bodies, both of which are in sliding connection with the shielding body and can move away from or close to each other to quickly open and close the inner cavity of the shielding body.

[0070] Preferably, the opposite sides of the two door bodies are in matching multi-curvature abutting structure to avoid radiation hazard caused by radiation through the abutting gap.

[0071] It can be understood that each of the door bodies is adapted with a linear driving mechanism to realize automatic opening and closing of the sliding shielding door 17. The linear driving mechanism is a screw pair mechanism 18 to ensure sufficient reliability of the sliding shielding door 17.

[0072] Meanwhile, the two linear driving mechanisms are driven by the same opening and closing motor 22 to simplify the structure of the device. The linear driving mechanism is in transmission connection with the opening and closing motor 22 through a gear pair 19 to realize transmission connection between the opening and closing motor 22 and the screw pair mechanism 18.

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

[0074] In addition, each of the two door bodies is adapted with a follow-up reinforcing block 16 to increase the radiation shielding capacity of the sliding shielding door 17.

[0075] Again in combination Figure 3 A horizontal pulley block 28 is arranged 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 provided with a self-recovery overturning mechanism 25 which overturns with the opening and closing of the sliding shielding door 17, and the opening and closing of the bottom plate of the hanging basket 12 can be realized through the overturning of the self-recovery overturning mechanism 25 to realize automatic unloading of the device.

[0077] Correspondingly, the embodiment further comprises a hanging basket 12 which is adapted with the inner cavity of the shielding body, the upper end of the hanging basket 12 is connected with the hoisting assembly, and the bottom plate of the lower end of the hanging basket 12 is adapted with an automatic release lock 26. Through the cooperation of the self-recovery overturning mechanism 25 and the automatic release lock 26, the locking and unlocking of the bottom plate of the hanging basket 12 can be realized.

[0078] Again in combination Figure 3The lifting assembly comprises 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 act, the steel rope pulley winding 8 can lay the steel rope from the outside of the shielding main body to the middle of the inner cavity of the shielding main body, and the steel rope is connected with the hanging basket 12.

[0079] In the embodiment, the steel rope and the hanging basket 12 are connected through the 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 in driving connection with the steel rope pulley winding 8 through the worm gear transmission mechanism 4, so as to utilize the self-locking function of the worm gear transmission mechanism 4 to ensure that free falling phenomenon will not occur under the condition of losing external power.

[0081] Generally, the worm gear transmission mechanism 4 and the steel rope pulley winding 8 are in series connection with the uniform winding reel mechanism 7, so as to uniformly accommodate the steel rope.

[0082] In the embodiment, the worm gear transmission mechanism 4 is in driving connection with the uniform winding reel mechanism 7 through the synchronous mechanism, so as to accurately control the position of the hanging basket 12.

[0083] Similarly, the worm gear transmission mechanism 4 is adapted with a hand wheel, so as to manually control the lifting of the hanging basket 12.

[0084] Further, the embodiment further comprises a fan 41, the air inlet end of the fan 41 is in communication with the inner cavity of the shielding main body through the filter 40, so as to suck the gas in the shielding main body through the fan 41 when the transfer container is loaded with radioactive materials, so as to avoid the escape of the air in the transfer container which may be contaminated, thereby avoiding the harm to the personnel and the environment.

[0085] In summary, the radioactive material loading and transporting device provided by the embodiment comprises a power supply 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 reel 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 support 13, a fixed reinforcing block 14, a guide sliding rod mechanism 15, a follow-up reinforcing block 16, a sliding shielding door 17, a lead screw pair mechanism 18, a gear pair 19, a second coupling 20, a rudder wheel 21, a double opening and closing motor 22, a shielding reinforcing fence 23, a shielding base 24, a self-recovery overturning mechanism 25, an automatic release lock 26, a support adjusting mechanism 27, a horizontal pulley block 28, a top box 29, an ear 30, a top cover connecting bolt 31, a second hand wheel 32, an operation handle 33, a control receiving and transmitting box 34, a handheld operation terminal 35, a walking wheel 36, a jacking motor 37, a walking motor 38, a rudder rod 39, a filter 40 and a fan 41.

[0086] The shielding cylinder 9, shielding top cover 10, fixed reinforcing block 14, follow-up reinforcing block 16, sliding shielding door 17, shielding reinforcing fence 23 and shielding base 24 constitute the basic shielding containment and loading space of the transfer container.

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

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

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

[0090] The steel wire pulley winding 8 is used to change the direction of the steel wire, so as to avoid straight-through holes and ensure the safety of the upper shielding, while reducing the friction of the steel wire, reducing the lifting torque and increasing the service life of the steel wire.

[0091] The uniform winding drum mechanism 7 is installed on the shielding top cover 10, which can realize the uniform winding of the steel wire on the drum by reciprocating the moving block to pull the steel wire when the drum rotates.

[0092] The synchronous belt mechanism 5 rotates synchronously with the worm gear transmission mechanism 4, which can control the lifting distance. Specifically, the high and low signals of the automatic unhooking device 11 are measured by the sensor, and the control transceiver box 34 realizes the parking control when lifting to the high and low positions according to the signals.

[0093] The automatic unhooking device 11 has the function of automatic unhooking. When the hanging basket 12 or other items are hung 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 automatically unlock and unhook.

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

[0095] The anti-inclination support 13 is installed on the shielding cylinder 9 and the shielding base 24, and can prevent the transport container from inclining, and is used for installing the guide slide rod mechanism 15, the screw rod pair mechanism 18, the steering wheel 21 and the support adjusting mechanism 27.

[0096] The sliding shielding door 17 is installed on the shielding base 24 and the shielding cylinder 9, is driven by the opening and closing motor 22, and adopts a bidirectional opening and closing wave-shaped butt joint structure, which is used for shielding in the bottom direction and the side direction, wherein the wave-shaped butt joint structure avoids the radiation hazard caused by the radiation passing through the butt joint gap, and realizes effective shielding in the bottom direction.

[0097] The fixed reinforcing block 14 is installed on the shielding reinforcing fence 23, and is used for shielding reinforcement caused by the structure thinning after the sliding shielding door 17 is pulled out. The follow-up reinforcing block 16 is installed on the sliding shielding door 17, and is used for shielding reinforcement of the gap between the sliding shielding door 17. Thus, the combination of the shielding cylinder 9, the shielding top cover 10, the fixed reinforcing block 14, the follow-up reinforcing block 16, the sliding shielding door 17 and the shielding reinforcing fence 23 blocks the radiation generated by the radioactive material at any position in the transport container in the circumferential direction and the upper and lower inclined angle direction, and realizes shielding protection in all directions.

[0098] The screw rod pair mechanism 18, the gear pair 19, the second shaft coupling 20 and the opening and closing motor 22 constitute the driving and transmission mechanism of the sliding shielding door 17, and can drive the horizontal reciprocating motion of the follow-up reinforcing block 16 and the sliding shielding door 17; the double-output motor can drive the two-end sliding shielding door 17 to act simultaneously, and can keep the synchronization of the action.

[0099] The steering wheel 21 is installed on the anti-inclination support 13, is driven by the walking motor 38, can be turned over and lifted, is operated by operating the steering rod 39 and the operation panel belonging to the steering rod 39, is used for driving and direction control during the internal site transfer of the transport container factory, and can also be used when the transport container is connected to the logistics hole.

[0100] The walking wheel 36 is installed on the fixed reinforcing block 14, has the functions of universal walking, turning over and lifting and braking, can be used when the internal site of the factory is transferred, and can also be used when the transport container is connected to the logistics hole.

[0101] The second hand wheel 32 is connected to the screw rod pair mechanism 18, and is used for manually operating the horizontal reciprocating motion of the follow-up reinforcing block 16 and the sliding shielding door 17 when the motor loses power or fails.

[0102] The guide slide rod mechanism 15 is installed on the anti-inclination support 13 and the shielding reinforcing fence 23, and the sliding sleeve connected with the follow-up reinforcing block 16 moves horizontally along the slide rod of the guide slide rod mechanism 15, so as to realize the motion guidance of the follow-up reinforcing block 16 and the sliding shielding door 17.

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

[0104] The self-recovery turnover mechanism 25 is installed on the sliding shielding door 17 and can be turned over with the sliding shielding door 17, which is used 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 part of the hanging basket 12, which is used to lock and release the bottom plate of the hanging basket 12. The initial state is the locked state. When needed, the hanging basket 12 is lowered to touch the self-recovery turnover mechanism 25, and then the sliding shielding door 17 is opened. The bottom plate of the hanging basket 12 will automatically open to release the materials in the hanging basket 12. After the sliding shielding door 17 is closed, the bottom plate of the hanging basket 12 is automatically locked.

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

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

[0108] The filter 40, the fan 41 and the connecting pipe and the like constitute an exhaust unit, which is installed in the top box 29 at the top of the transfer container, is connected to the internal space of the transfer container at the lower part, and has a pipe opening at the upper part, which is used for air discharge and purification filtering of the transfer container, so as to avoid the contaminated air in the container from escaping to cause harm to personnel and environment.

[0109] The control transceiver box 34 is installed on the intermediate annular plate of the anti-falling support 13 and is closely attached to the outer wall of the shielding cylinder 9, which is used to load control components and wireless signal antennas and the like, is the "nerve center" of the transfer container, and can realize remote control. The control transceiver box 34 receives and transmits control signals, operates control instructions, and drives the lifting motor 2 and the opening and closing motor 22 to operate when in operation. The control transceiver box 34 can provide power indication, operation indication and fault indication and the like.

[0110] The handheld operation terminal 35 has the functions of issuing instructions and power indication, power indication, operation indication, position indication and fault indication, and can analyze and prompt the equipment maintenance and fault repair.

[0111] In use, first, the transfer container is taken out from the equipment storage room, the power of the transportation device is turned on, the power of the handheld operation terminal 35 is turned on, and the initial state is checked.

[0112] When the radioactive material needs to be transferred, the through cavity at the lower end of the shielding body is first connected with the material flow hole of the radioactive material storage process, the sliding shielding door 17 is remotely controlled to be opened, the lifting basket 12 or the automatic unhooking device 11 is remotely controlled to be lowered to the radioactive material storage process, the radioactive material is grabbed or loaded (when the whole object is grabbed, the lifting basket 12 is not needed); the lifting basket 12 or the automatic unhooking device 11 is remotely controlled to be lifted, and when the lifting basket 12 or the automatic unhooking device 11 is lifted to the highest position (at this time, the whole is loaded into the transfer container), the transfer container (the lifting basket 12) loaded with the radioactive material is lifted into the inner cavity of the shielding body through the lifting assembly.

[0113] When the material is completely located in the inner cavity of the shielding body, the sliding shielding door 17 is remotely controlled to be closed, and the transfer container is transferred to the unloading process through the walking assembly, so that the through cavity at the lower end of the shielding body is connected with the material flow hole of the radioactive material unloading process, the sliding shielding door 17 is remotely controlled to be opened again, the lifting basket 12 or the radioactive object is remotely controlled to be lowered to the radioactive material unloading process, the unloading is automatically unhooked, or the bottom plate of the lifting basket 12 is opened by the automatic unhooking lock 26 of the lifting basket 12 to unload, and the lifting assembly is remotely controlled to lower the transfer container or the radioactive object to the radioactive material unloading process, so that the transfer of the radioactive material is automatically completed.

[0114] In the transfer process, in order to avoid the escape of the air in the transfer container which may be contaminated, causing harm to the personnel and the environment, the fan 41 is remotely controlled to be started, so that the air in the transfer container is discharged through the filter 40, and after the transfer and unloading are completed, the fan 41 is remotely controlled to be stopped. 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] In the whole transfer process, the radioactive material is located in the inner cavity of the shielding body, and the radiation of the radioactive material can be shielded.

[0116] If the internal site of the plant needs to be used for transfer operation or is connected with the material flow hole, the jacking motor 37 is first started, the support adjusting mechanism 27 is adjusted to the maximum height, then the locking bolt is taken out, the steering wheel 21 and the walking wheel 36 are taken to the operation posture, the locking bolt is inserted and fixed, the walking motor 38 is started, the steering lever 39 and the operation panel belonging to the steering lever 39 are used to control the steering wheel 21 to operate, and the transfer container is walked.

[0117] In summary, the radioactive material loading and transporting device provided by the embodiment can realize the automatic transfer and loading and unloading of the radioactive material, shield the radiation of the radioactive material in the transfer process, reduce the work intensity of the transfer and loading and unloading of the radioactive material, improve the work efficiency, and enhance the safety of the transfer and loading and unloading of the radioactive material.

[0118] Therefore, the radioactive material loading and transporting device provided by the embodiment can be used in nuclear reactors, research facilities thereof, radioactive scientific research and experiment facilities, radioactive three-waste treatment facilities, nuclear fuel production facilities, spent fuel reprocessing facilities, radioactive isotope production facilities, radioactive medical product production facilities and the like.

[0119] It should be understood that the above description is only a specific embodiment of the present application, and is not used to limit the protection scope of the present application, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A radioactive material loading and transport device, characterized in that: include: A shielding body is provided with an openable and closed inner cavity, and the inner cavity is capable of accommodating radioactive materials, comprising a shielding base (24), a shielding cylinder (9) and a shielding top cover (10), wherein a through cavity for the passage of radioactive materials is provided in the middle of the shielding base (24), the shielding cylinder (9) is a through structure, and the shielding cylinder (9) is installed on the upper end of the shielding base (24), and the inner cavity of the shielding cylinder (9) is communicated with the through cavity of the shielding base (24), and the shielding top cover (10) is fixed on the upper end of the shielding cylinder (9); An anti-fall bracket (13) is mounted on the shielding base (24) and is mounted outside the shielding cylinder (9), and each corner of the lower end is provided with a support adjustment mechanism, and the support adjustment mechanism can adjust the height of the corresponding corner of the anti-fall bracket (13); a walking assembly, provided at the lower end of the shielding body and capable of walking on its own and / or under the action of traction, comprising a steering wheel (21), the steering wheel (21) being mounted at the lower end of the anti-falling bracket (13), being adapted to be equipped with a rudder bar (39), being capable of turning over and rising relative to the anti-falling bracket (13), and being capable of manually controlling the steering wheel (21) via the rudder bar (39); A sliding shielding door (17) is provided at the lower end of the shielding body, installed between the shielding base (24) and the shielding cylinder (9), and can be opened and closed automatically. The internal cavity of the shielding body can be opened and closed by sliding the sliding shielding door (17); A hoisting assembly is arranged at the upper end of the shielding body, and 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; The shielding body further comprises a shielding reinforcement enclosure (23) and a fixed reinforcement block (14), wherein the shielding reinforcement enclosure (23) is mounted on the shielding base (24) and is arranged outside the closing position of the sliding shielding door (17), and the fixed reinforcement block (14) is mounted on the shielding reinforcement enclosure (23); The walking assembly further comprises a walking wheel (36), which is mounted on the lower end of the fixed reinforcement block (14) and is capable of universal walking, flipping, lifting and braking; The sliding shielding door (17) includes two door bodies and a self-returning turning mechanism (25), the two door bodies are slidably connected to the shielding main body, and the two door bodies can move away from or move toward each other, the self-returning 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 the self-returning turning mechanism (25); It 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 hanging assembly, and the bottom plate of the lower end is adapted to be equipped with an automatic trip lock (26). The bottom plate of the hanging basket (12) can be locked and unlocked by the cooperation of the self-returning flip mechanism (25) and the automatic trip lock (26).

2. The radioactive material loading and transporting device according to claim 1, 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 operate via the lifting motor (37).

3. The radioactive material loading and transporting device according to claim 1, characterized in that: The support adjustment mechanism is adapted to be equipped with an operating handle (33).

4. The radioactive material loading and transporting device according to claim 1, characterized in that: The traveling assembly further comprises a traveling motor (38), and the traveling motor (38) is in transmission connection with the steering wheel (21).

5. The radioactive material loading and transporting device according to claim 1, characterized in that: The opposite sides of the two door bodies are multi-curvature docking structures that cooperate with each other.

6. The radioactive material loading and transporting device according to claim 1, characterized in that: Each of the door bodies is adapted to be equipped with a linear drive mechanism.

7. The radioactive material loading and transporting device according to claim 6, characterized in that: The linear drive mechanism is a screw pair mechanism (18).

8. The radioactive material loading and transporting device according to claim 7, characterized in that: The two linear drive mechanisms are driven by the same opening and closing motor (22).

9. The radioactive material loading and transporting device according to claim 7, characterized in that: The linear drive mechanism is connected to the opening and closing motor (22) via a gear pair (19).

10. The radioactive material loading and transporting device according to claim 7, characterized in that: The linear drive mechanism is adapted to be equipped with a second hand wheel (32).

11. The radioactive material loading and transporting device according to claim 1, characterized in that: Both door bodies are adapted to be equipped with follower reinforcement blocks (16).

12. The radioactive material loading and transporting device according to claim 1, characterized in that: A horizontal pulley set (28) is provided between the sliding shielding door (17) and the shielding body.

13. The radioactive material loading and transporting device according to claim 1, characterized in that: The hoisting assembly includes 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 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 (12).

14. The radioactive material loading and transporting device according to claim 13, characterized in that: The steel rope is connected to the hanging basket (12) via an automatic decoupling device (11).

15. The radioactive material loading and transporting device according to claim 13, characterized in that: The lifting motor (2) is connected to the steel rope pulley winding (8) through a worm gear transmission mechanism (4).

16. The radioactive material loading and transporting device according to claim 15, 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).

17. The radioactive material loading and transporting device according to claim 16, characterized in that: The worm gear transmission mechanism (4) is connected to the uniform winding drum mechanism (7) through a synchronization mechanism.

18. The radioactive material loading and transporting device according to claim 15, characterized in that: The worm gear transmission mechanism (4) is adapted to be equipped with a hand wheel.

19. The radioactive material loading and transporting device according to any one of claims 1 to 18, 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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