A device and method for dismantling the hot chamber in the active area of ​​an irradiation device.

Abstract

This invention relates to the field of hot chamber disassembly tools, and provides a device and method for disassembling the hot chamber of the active area of ​​an irradiation apparatus. The device includes a fixed base for placing the active area, a first limiting member for restricting the upward movement of the active area, a wrench for tightening countersunk screws, a cross gripper for gripping the lifting connector, a second limiting member for restricting the upward movement of a single sample module, a gripper for gripping the positioning plate, a single-hook fixture for gripping the baffle plate, and a double-hook fixture for gripping the sample plate. The various disassembly tools of this invention, combined with a robotic arm, enable the disassembly of each component of the active area. Furthermore, the pin at the bottom of the active area is inserted into the positioning hole on the fixed base to prevent the active area from tipping over during operation. Simultaneously, the first limiting member restricts the upward movement of the active area, and the second limiting member restricts the upward movement of a single sample module, preventing other components from being taken away when a single tool, in conjunction with the robotic arm, disassembles one component, thus making the operation more convenient.

Description

Technical Field

[0001] This invention relates to the field of hot chamber dismantling tools, and more specifically, to a hot chamber dismantling device and method for the active area of ​​an irradiation apparatus. Background Technology

[0002] From conceptual design to practical application in engineering, nuclear materials must undergo in-reactor irradiation tests to comprehensively evaluate their radiation resistance. The design of the irradiation test apparatus is crucial for the successful conduct of irradiation tests. For example, the applicant, in publication number "CN115494087A", provides an irradiation test apparatus that allows for the repeated removal and loading of material sample plates during irradiation, making full use of the outer structure of the irradiation apparatus and reducing material waste.

[0003] During the disassembly and reassembly of the irradiation device, the active area needs to be transferred to the hot chamber for further operation. The active area includes a lifting connector, a pressure tube, and several sample modules. A square shaft is connected to the middle of one end of the lifting connector, and the other end is detachably connected to the lower clamping seat. One end of the pressure tube is located at one end of the lifting connector and sleeved on the outside of the square shaft; the other end is detachably connected to the sample modules. Several sample modules are evenly distributed between the pressure tube and the support plate for placing in-pile irradiated samples. Each sample module includes a positioning pressure plate, an upper top plate, a baffle plate, a grid plate, and a sample plate. The positioning pressure plate is located on the upper top plate to press the sample plate between the upper top plate and the bottom plate. The upper top plate is connected to the bottom plate via a support rod. The side of the upper top plate has a baffle plate placement hole to prevent the baffle plate from being placed. The grid plate is located on the body of the support rod, and the positioning pressure plate is detachably connected to the end of the support rod via a pin. However, hot chamber robots cannot directly and flexibly disassemble the components of the active area. Moreover, since the active area is a long cylinder, if it is placed vertically on the operating table, it is easy to become unstable and tip over during disassembly, damaging the active area and the sample plate. Therefore, how to design a hot chamber disassembly device for the active area of ​​an irradiation device is an urgent problem to be solved in this field. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for disassembling the hot chamber of the active area of ​​an irradiation device, so as to combine a robotic arm to realize the disassembly operation of various components in the active area.

[0005] This invention is achieved through the following technical solution:

[0006] A hot chamber dismantling device for the active region of an irradiation apparatus, comprising:

[0007] The fixed base for placing the active area has several positioning holes on its top that can match the bottom pins of the active area;

[0008] A first limiting member is used to restrict the upward movement of the active area, and it is connected to a fixed base;

[0009] A wrench for tightening countersunk screws includes a lever that engages with the countersunk head groove of the countersunk screw, with a cross-shaped handle at one end of the lever.

[0010] A cross-shaped gripper for gripping lifting joints includes a gripper body, a first lifting ring at one end of the gripper body, and several gripping rods at the other end of the gripper body along the circumferential direction that can be engaged into the side grooves of the lifting joint.

[0011] A second limiting member is used to restrict the upward movement of a single sample module, and it is connected to a fixed base;

[0012] The gripper for gripping the positioning plate includes a gripping body, a second lifting ring at one end of the gripping body, gripping arms on two opposite sides at the other end of the gripping body, and barbs at the ends of the gripping arms that can be engaged in the side grooves of the positioning plate.

[0013] A single-hook fixture for gripping a baffle plate includes a first fixture body, one end of which is provided with a first hook rod, which can be inserted into a circular hole provided on the baffle plate; and

[0014] The double-hook fixture for gripping sample plates includes a second fixture body, one end of which is provided with two second hook rods that can be inserted into round holes provided on the sample plate.

[0015] Optionally, both the first limiting member and the second limiting member include a limiting block and a connecting rod. The connecting rod is connected to the fixed base by a thread, and the limiting block is rotatably sleeved on the connecting rod.

[0016] Optionally, the connecting rod includes a connecting screw and a fixing screw, the fixing base is provided with a threaded hole for connecting the connecting screw, the fixing screw is connected to the head of the connecting screw, and the limiting block is rotatably sleeved on the rod of the fixing screw.

[0017] Optionally, two of each of the first and second limiting members are symmetrically arranged.

[0018] Optionally, the top of the fixed base is provided with a limiting groove, and the positioning hole is located at the bottom of the limiting groove.

[0019] Optionally, the fixed base is provided with a rotatable handle on top.

[0020] Optionally, the top of the fixed base is provided with a wrench placement slot for placing a wrench, a cross gripper placement slot for placing a cross gripper, a gripper placement slot for placing a gripping component, a single hook tooling placement slot for placing a single hook tooling, and a double hook tooling placement slot for placing a double hook tooling.

[0021] The present invention also provides a method for dismantling the hot chamber of the active region of an irradiation device, using the hot chamber dismantling device for the active region of an irradiation device described in any one of the above-mentioned methods, comprising the following steps:

[0022] S1. Insert the bottom pin of the active area into the positioning hole on the fixed base, and restrict the active area from moving upward by the first limiting member;

[0023] S2. Use a wrench to loosen the countersunk screws securing the hanger;

[0024] S3. Insert the cross-shaped grabber into the lifting joint and rotate it so that the grab bar is engaged in the slot on the side of the lifting joint, and lift the lower lifting joint upwards.

[0025] S4. Take out each sample module in turn;

[0026] S5. Place a single sample module on the fixed base and restrict the sample module from moving upward by the second limiting member;

[0027] S6. Use the gripper to lift the positioning plate upwards;

[0028] S7. Use a single hook tool to hook out the baffle plate;

[0029] S8. Use a double-hook tool to lift the sample plate upwards;

[0030] S9. Remove the remaining part of the sample module and repeat steps S5-S8 to disassemble the sample plates in the remaining sample modules.

[0031] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0032] 1. In this invention, a hot chamber disassembly device specifically designed for the active area of ​​an irradiation device is proposed. By using a fixed base, a first limiting component, a wrench, a cross gripper, a second limiting component, a gripping component, a single hook fixture, and a double hook fixture, combined with a robotic arm, the various components of the active area can be disassembled.

[0033] 2. In this invention, the pin at the bottom of the active area is inserted into the positioning hole on the fixed base. In practical applications, the added counterweight of the fixed base can prevent the active area from tipping over during operation. At the same time, the first limiting member can restrict the upward movement of the active area, and the second limiting member can restrict the upward movement of a single sample module, preventing other parts from being taken away when a single tool is used with a robot to disassemble a certain part, thus making the operation more convenient. Attached Figure Description

[0034] 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 therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 This is a schematic diagram of a hot chamber disassembly device for the active zone of an irradiation apparatus provided by the present invention;

[0036] Figure 2 This is a structural diagram of the fixed base;

[0037] Figure 3 This is a schematic diagram of the structure of the first limiting component;

[0038] Figure 4 This is a sectional view of the first limiting member;

[0039] Figure 5 This is a schematic diagram of the cross-shaped gripper.

[0040] Figure 6 A schematic diagram showing the usage status of the cross gripper;

[0041] Figure 7 This is a diagram illustrating the usage status of the grabbed component;

[0042] Figure 8 This is the main view of the captured item;

[0043] Figure 9 A diagram illustrating the usage of a wrench;

[0044] Figure 10 This is a schematic diagram showing the usage status of a single-hook tool.

[0045] Figure 11 This is a schematic diagram showing the usage status of the double-hook tooling;

[0046] Icons: 1-Fixed base, 101-Handle, 102-Limiting groove, 103-Positioning hole, 2-First limiting component, 201-Limiting block, 202-Connecting screw, 203-Fixing screw, 3-Wrench, 301-Wrench bar, 302-Phillips head, 4-Phillips gripper, 401-Gripper body, 402-First lifting ring, 403-Grip bar, 5-Second limiting component, 6-Gripping component, 601- 602-Second lifting ring, 603-Grab arm, 604-Barb, 7-Single hook fixture, 701-First fixture body, 702-First barb rod, 8-Double hook fixture, 801-Second fixture body, 802-Second barb rod, 9-Sample module, 901-Positioning pressure plate, 902-Baffle plate, 903-Grid plate, 904-Sample plate, 10-Lifting connector, 11-Countersunk screw. Detailed Implementation

[0047] Example 1

[0048] refer to Figure 1 This embodiment provides a hot chamber disassembly device for the active area of ​​an irradiation device, including a fixed base 1, a first limiting member 2, a wrench 3, a cross gripper 4, a second limiting member 5, a gripping member 6, a single hook tool 7, and a double hook tool 8. During disassembly, the various disassembly tools are combined with a robotic arm to disassemble the various components of the active area.

[0049] refer to Figure 2 The fixed base 1 is used to place the active area. Its top has several positioning holes 103. The number and position of the positioning holes 103 match the number and position of the bottom pins of the active area. In use, the bottom pins of the active area are inserted into the positioning holes 103. By adding weight to the fixed base 1, the active area can be prevented from tipping over during operation. Furthermore, the top of the fixed base 1 has a limiting groove 102. The positioning holes 103 are located at the bottom of the limiting groove 102. The diameter of the limiting groove 102 matches the maximum diameter of the active area and the sample module 9 to limit displacement.

[0050] In this embodiment, the top of the fixed base 1 is provided with a rotatable handle 101 to facilitate moving the fixed base 1. In addition, it is easy to understand that the handle 101 can be rotated to the side of the fixed base 1 to avoid affecting operation.

[0051] refer to Figure 3 and Figure 4 The first limiting member 2 is used to restrict the upward movement of the active area and is connected to the fixed base 1. The second limiting member 5 is used to restrict the upward movement of a single sample module 9 and is also connected to the fixed base 1. Alternatively, both the first limiting member 2 and the second limiting member 5 include a limiting block 201 and a connecting rod. The connecting rod is connected to the fixed base 1 by threads, and the limiting block 201 is rotatably sleeved on the connecting rod.

[0052] In use, the limit stop 201 is rotated so that it presses against the grid plate 903 (it is easy to understand that the limit stop 201 of the first limit member 2 presses against the grid plate 903 of the lowest sample module 9 in the active area). This can restrict the upward movement of the active area or a single sample module 9. At the same time, the fixed base 1 itself restricts the downward movement of the active area or a single sample module 9. That is, after the limit stop 201 is moved into place, the active area or a single sample module 9 is fixed, which avoids taking away other parts when a single tool is used with a robot to disassemble a certain part, thus making the operation more convenient.

[0053] It is easy to understand that the difference between the first limiting member 2 and the second limiting member 5 lies in the different lengths of the connecting rods, that is, the different heights of the limiting blocks 201. In other embodiments, the first limiting member 2 and the second limiting member 5 may of course adopt other structures, and there are no specific restrictions, as long as they can achieve the upward movement of the limiting (and unlimiting) active area and the single sample module 9, and at the same time, they should be easy for the robot arm to operate.

[0054] Based on the above, the limiting block 201 in this embodiment is configured as follows: the connecting rod includes a connecting screw 202 and a fixing screw 203; the fixing base 1 has a threaded hole for connecting the connecting screw 202; the fixing screw 203 is connected to the head of the connecting screw 202; and the limiting block 201 is rotatably sleeved on the rod of the fixing screw 203. In other embodiments, other methods can also be used to install the limiting block 201 on the connecting rod, such as mounting the limiting block 201 on the connecting rod via a bearing.

[0055] Furthermore, there are two symmetrically arranged first limiting members 2 and two second limiting members 5. That is, after the active area or a single sample module 9 is placed into the limiting sink 102, the two first limiting members 2 are located on two opposite sides of the active area or a single sample module 9, and the two second limiting members 5 are staggered from the two first limiting members 2, also located on two opposite sides of the active area or a single sample module 9. This arrangement facilitates better fixation of the active area and the single sample module 9.

[0056] refer to Figure 9 The wrench 3 is used to tighten the countersunk screw 11. The wrench 3 includes a lever 301 that engages with the countersunk groove on the head of the countersunk screw 11. One end of the lever 301 has a cross-shaped handle 302. It is easy to understand that the shape of the cross-section of the countersunk groove on the head of the countersunk screw 11 perpendicular to the depth direction is the same as the shape of the cross-section of the lever 301 perpendicular to the length direction. For example, if the cross-section of the countersunk groove on the head of the countersunk screw 11 perpendicular to the depth direction is rectangular, then the cross-section of the lever 301 perpendicular to the length direction is also a matching rectangular shape. The lever 301 is inserted into the countersunk groove on the head of the countersunk screw 11, and the countersunk screw 11 can be tightened by rotating the cross-shaped handle 302 using two robotic arms.

[0057] refer to Figure 5and Figure 6 The cross gripper 4 is used to grip the lifting connector 10. The cross gripper 4 includes a gripper body 401, a first lifting ring 402 at one end of the gripper body 401, and several gripping rods 403 arranged in a cross shape along the circumferential direction at the other end of the gripper body 401. For example, in this embodiment, there are four gripping rods 403 arranged in a cross shape, and each gripping rod 403 corresponds to a slot on the side of the lifting connector 10. In use, after removing the countersunk screws 11 connecting the lifting connector 10, the cross gripper 4 is suspended in the hot chamber by the first lifting ring 402 and moves up and down. By rotating the gripper body 401 with two robotic arms, the gripping rods 403 can be engaged into the slots on the side of the lifting connector 10. Then, by lifting, the lifting connector 10 can be disassembled. Of course, in other embodiments, two gripping rods 403 can also be provided, arranged in a straight line, or other numbers and arranged in a corresponding shape according to the position of the slots on the side of the lifting connector 10.

[0058] In addition, the cross gripper 4 can also be used to transfer the active area. Since the active area is a long cylinder, the maximum opening distance of the robot arm is limited, making it inconvenient to grasp long cylindrical objects. Therefore, the active area can be connected through the cross gripper 4, and the robot arm can grasp the first lifting ring 401 on the cross gripper 4 to move the active area.

[0059] refer to Figure 7 and Figure 8 The gripper 6 is used to grip the positioning plate 901. The gripper 6 includes a gripping body 601. One end of the gripping body 601 is provided with a second lifting ring 602, and the other end of the gripping body 601 is provided with two opposite gripping arms 603. The ends of the gripping arms 603 are provided with barbs 604 that can be engaged in the slots on the side of the positioning plate 901. In use, similar to the cross gripper 4, the gripper 6 is suspended in the hot chamber by the second lifting ring 602 and moves up and down. By rotating the gripping body 601 with two robotic arms, the two barbs 604 can be engaged in the slots on the side of the positioning plate 901. Then, by lifting it up, the positioning plate 901 can be disassembled.

[0060] refer to Figure 10 The single hook fixture 7 is used to grip the baffle plate 902. The barbed hook fixture 604 includes a first fixture body 701. One end of the first fixture body 701 is provided with a first hook rod. The first hook rod can be inserted into the round hole provided on the baffle plate 902. When in use, after removing the positioning pressure plate 901, the first fixture body 701 is clamped by two robotic arms. The first hook rod is inserted downward into the round hole provided on the baffle plate 902 and pulled outward to disassemble the baffle plate 902.

[0061] refer to Figure 11The double-hook fixture 8 is used to grip the sample plate 904. The double-hook fixture 8 includes a second fixture body 801. One end of the second fixture body 801 is provided with two second hook rods. The second hook rods can be inserted into the round holes provided on the sample plate 904. When in use, after the baffle 902 is removed, the sample plate 904 is unlocked. The two second hook rods are inserted into the round holes provided on the sample plate 904, and then lifted up, the sample plate 904 can be removed.

[0062] In practical applications, the first tooling body 701 and the second tooling body 801 are designed as I-beam structures. This is easy to understand; the two robotic arms are shaped like pincers, and the I-beam structure facilitates the operation of the robotic arms. In addition, the lifting rings of each part (i.e., the first lifting ring 402 and the second lifting ring 602) are all designed to facilitate the operation of the robotic arms.

[0063] Refer again Figure 1 and Figure 2 Based on the above, the top of the fixed base 1 is provided with a wrench placement slot for placing the wrench 3, a cross-gripper placement slot for placing the cross-gripper 4, a gripper placement slot for placing the gripper 6, a single-hook tool placement slot for placing the single-hook tool 7, and a double-hook tool placement slot for placing the double-hook tool 8. This arrangement facilitates the storage of various disassembly tools (i.e., the first limiting member 2, wrench 3, cross-gripper 4, second limiting member 5, gripper 6, single-hook tool 7, and double-hook tool 8). It is worth noting that the shape of each placement slot can be as follows... Figure 1 As shown, in other embodiments, each placement slot can also be designed in other forms according to the size of the fixed base 1, so that each disassembly tool can be placed horizontally or vertically.

[0064] Example 2

[0065] This embodiment provides a method for dismantling the hot chamber of the active region of an irradiation device, using the hot chamber dismantling device for the active region of an irradiation device provided in Embodiment 1, including the following steps:

[0066] S1. Insert the bottom pin of the active area into the positioning hole 103 on the fixed base 1, and restrict the upward movement of the active area by the first limiting member 2, that is, place the active area in the limiting sink 102, insert the bottom pin of the active area into the positioning hole 103 on the fixed base 1, rotate the limiting block 201 to press the top of the grid plate 903 of the bottom sample module 9 of the active area, and fix the active area.

[0067] S2. Use wrench 3 to unscrew the countersunk screw 11 that secures the lifting connector 10. That is, use two mechanical clamping wrenches 3 to insert the lever 301 into the countersunk groove of the head of the countersunk screw 11, and then use two mechanical arms to rotate the cross handle 302 to remove the countersunk screw 11 and unlock the lifting connector 10.

[0068] S3. Insert the cross gripper 4 into the lifting joint 10 and rotate it using two robotic arms so that the gripper 403 is engaged in the slot on the side of the lifting joint 10. Lift the lower lifting joint 10 upwards (as mentioned above, the cross gripper 4 is suspended in the hot chamber by the first lifting ring 402 and moves up and down), and disassemble the lifting joint 10.

[0069] S4. Take out each sample module 9 in sequence;

[0070] S5. Place a single sample module 9 on the fixed base 1 and restrict the sample module 9 from moving upward by the second limiting member 5; that is, place the single sample module 9 into the limiting groove 102 on the fixed base 1, and move the limiting block 201 to press it against the top of the grid plate 903 to fix the sample module 9.

[0071] S6. Use the gripper 6 to lift the positioning plate 901 upwards. As mentioned above, the cross gripper 4 is suspended in the hot chamber by the first lifting ring 402 and moves up and down. The gripper body 601 is rotated by the two robotic arms so that the two barbs 604 can be inserted into the slots on the side of the positioning plate 901. Then, the positioning plate 901 can be lifted upwards to achieve disassembly.

[0072] S7. Use the single hook tool 7 to hook out the baffle 902. That is, use two robotic arms to hold the first tool body 701, then insert the first hook rod downward into the round hole set on the baffle 902, and pull it outward to remove the baffle 902.

[0073] S8. Use the double hook tool 8 to lift the sample plate 904 upwards. That is, use two robotic arms to hold the second tool body 801, and then insert the two second hook rods into the round holes set on the sample plate 904 from the side and lift it upwards to remove the baffle 902.

[0074] S9. Remove the remaining part of sample module 9, repeat steps S5-S8, and disassemble the sample plate 904 in the remaining sample modules 9, that is, take out the sample plate 904 in each sample module 9 in sequence.

[0075] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for dismantling the hot chamber in the active area of ​​an irradiation apparatus, characterized in that, include: The fixed base for placing the active area has several positioning holes on its top that can match the bottom pins of the active area; A first limiting member is used to restrict the upward movement of the active area, and it is connected to a fixed base; A wrench for tightening countersunk screws includes a lever that engages with the countersunk head groove of the countersunk screw, with a cross-shaped handle at one end of the lever. A cross-shaped gripper for gripping lifting joints includes a gripper body, a first lifting ring at one end of the gripper body, and several gripping rods at the other end of the gripper body along the circumferential direction that can be engaged into the side grooves of the lifting joint. A second limiting member is used to restrict the upward movement of a single sample module, and it is connected to a fixed base; The gripper for gripping the positioning plate includes a gripping body, a second lifting ring at one end of the gripping body, gripping arms on two opposite sides at the other end of the gripping body, and barbs at the ends of the gripping arms that can be engaged in the side grooves of the positioning plate. A single-hook fixture for gripping a baffle plate includes a first fixture body, one end of which is provided with a first hook rod, which can be inserted into a round hole provided on the baffle plate. as well as The double-hook fixture for gripping sample plates includes a second fixture body, one end of which is provided with two second hook rods that can be inserted into round holes provided on the sample plate.

2. The hot chamber dismantling device for the active area of ​​an irradiation device according to claim 1, characterized in that, Both the first limiting member and the second limiting member include a limiting block and a connecting rod. The connecting rod is connected to the fixed base by a thread, and the limiting block is rotatably sleeved on the connecting rod.

3. The hot chamber dismantling device for the active region of an irradiation apparatus according to claim 2, characterized in that, The connecting rod includes a connecting screw and a fixing screw. The fixing base is provided with a threaded hole for connecting the connecting screw. The fixing screw is connected to the head of the connecting screw, and the limiting block is rotatably sleeved on the rod of the fixing screw.

4. The hot chamber dismantling device for the active region of an irradiation apparatus according to claim 1, characterized in that, There are two of each of the first and second limiting members.

5. The hot chamber dismantling device for the active zone of an irradiation apparatus according to claim 1, characterized in that, The fixed base is provided with a limiting groove at the top, and the positioning hole is located at the bottom of the limiting groove.

6. The hot chamber dismantling device for the active region of an irradiation apparatus according to any one of claims 1-5, characterized in that, The fixed base is equipped with a rotatable handle on top.

7. The hot chamber dismantling device for the active region of an irradiation apparatus according to any one of claims 1-5, characterized in that, The top of the fixed base is provided with a wrench placement slot for placing a wrench, a cross gripper placement slot for placing a cross gripper, a gripper placement slot for placing a gripping component, a single hook tooling placement slot for placing a single hook tooling, and a double hook tooling placement slot for placing a double hook tooling.

8. A method for dismantling the hot chamber of an active region in an irradiation device, comprising the hot chamber dismantling device for an active region in an irradiation device as described in any one of claims 1-7, characterized in that, The following steps are involved: S1. Insert the bottom pin of the active area into the positioning hole on the fixed base, and restrict the active area from moving upward by the first limiting member; S2. Use a wrench to loosen the countersunk screws securing the hanger; S3. Insert the cross-shaped grabber into the lifting joint and rotate it so that the grab bar is engaged in the slot on the side of the lifting joint, and lift the lower lifting joint upwards. S4. Take out each sample module in turn; S5. Place a single sample module on the fixed base and restrict the sample module from moving upward by the second limiting member; S6. Use the gripper to lift the positioning plate upwards; S7. Use a single hook tool to hook out the baffle plate; S8. Use a double-hook tool to lift the sample plate upwards; S9. Remove the remaining part of the sample module and repeat steps S5-S8 to disassemble the sample plates in the remaining sample modules.

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