Hot chamber dismounting device and method for active area of irradiation device

Abstract

The invention relates to the technical field of hot chamber dismounting tools, and provides a hot chamber dismounting device and method for an active area of an irradiation device. The device comprises a fixed base used for placing an active area, a first limiting piece used for limiting the active area from moving upwards, a wrench used for screwing a sunk screw, a cross-shaped gripper used for grabbing a hanging connector, a second limiting piece used for limiting a single sample module from moving upwards, and a grabbing piece used for grabbing a positioning pressing plate. The single-hook tool is used for grabbing a separation blade; and the double-hook tool is used for grabbing a sample plate. According to the invention, each dismounting tool is combined with the manipulator, each part in the active area can be dismounted, and in addition, the pins at the bottom of the active area are inserted into the positioning holes in the fixed base, so that the active area can be prevented from toppling over in the operation process; meanwhile, the first limiting piece can limit the upward movement of the active area, and the second limiting piece can limit the upward movement of a single sample module, so that other parts are prevented from being taken away when a single tool is matched with a manipulator to disassemble a certain part, and the operation is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of hot chamber disassembly tools, and in particular to a hot chamber disassembly device and method for an active zone of an irradiation device. Background Art

[0002] From the conceptual design to the actual application of nuclear materials in engineering, in-pile irradiation tests must be carried out on key objects such as materials to comprehensively evaluate their radiation resistance. The design of the irradiation test device is the key to the successful implementation of irradiation tests. For example, the applicant provides an irradiation test device in the publication number "CN115494087A", which can repeatedly take out and load material sample plates during irradiation, fully utilize the outer structure of the irradiation device, and reduce material waste.

[0003] When disassembling and reinstalling the irradiation device, the active area in the irradiation device needs to be transferred to the hot chamber for operation. The active area includes a hanging joint, a pressing tube and several sample modules. The middle of one end of the hanging joint is connected with a square shaft, and the other end of the hanging joint is detachably connected to the lower pressing seat; one end of the pressing tube is arranged at one end of the hanging joint and sleeved on the outside of the square shaft, and the other end of the pressing tube is detachably connected to the sample module. Several sample modules are evenly arranged between the pressing tube and the support plate for placing the irradiated samples in the pile. The sample module includes a positioning pressing plate, an upper top plate, a baffle, a grid plate and a sample plate. The positioning pressing plate is arranged 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 through a support rod. The side of the upper top plate is provided with a baffle placement hole for preventing the baffle. The grid plate is arranged on the body of the support rod, and the positioning pressing plate is detachably connected to the end of the support rod through a pin. However, the hot chamber manipulator cannot directly and flexibly disassemble the components of the active zone. In addition, since the active zone is an elongated cylinder, if it is placed vertically on the operating table, it is easy for the center of gravity to become unstable during the disassembly process and tip over, damaging the active zone and the sample plate. Therefore, how to design a hot chamber disassembly device for the active zone of an irradiation device is an urgent problem to be solved in this field. Summary of the invention

[0004] The object of the present invention is to provide a hot chamber disassembly device and method for an active zone of an irradiation device, so as to realize the disassembly operation of various components of the active zone in combination with a robot.

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

[0006] A hot chamber disassembly device for an active area of ​​an irradiation device, comprising:

[0007] A fixed base for placing the active area, with a plurality of positioning holes on the top thereof that can match the pins at the bottom of the active area;

[0008] A first limiting member for limiting upward movement of the active area, which is connected to the fixed base;

[0009] A wrench for turning a countersunk screw comprises a lever that can cooperate with a countersunk groove on the head of the countersunk screw, and a cross handle is provided at one end of the lever;

[0010] A cross gripper for grabbing a lifting joint, comprising a gripper body, a first lifting ring at one end of the gripper body, and a plurality of gripping rods which can be inserted into the side slots of the lifting joint along the circumferential direction at the other end of the gripper body;

[0011] A second limiting member for limiting the upward movement of a single sample module, which is connected to the fixed base;

[0012] A grabbing member for grabbing the positioning plate comprises a grabbing body, one end of which is provided with a second lifting ring, and two opposite sides of the other end of the grabbing body are provided with grabbing arms, and the ends of the grabbing arms are provided with barbs that can be inserted into the side slots of the positioning plate;

[0013] A single hook tool for grabbing the baffle, comprising a first tool body, one end of which is provided with a first hook rod, and the first hook rod can be inserted into a circular hole provided on the baffle; and

[0014] The double-hook tool for grabbing a sample plate comprises a second tool body, one end of which is provided with two second hook rods, and the second hook rods can be inserted into round holes arranged on the sample plate.

[0015] Optionally, the first limiting member and the second limiting member both include a limiting stopper and a connecting rod, the connecting rod is connected to the fixed base via a thread, and the limiting stopper 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 connected to the connecting screw, the fixing screw is connected to the head of the connecting screw, and the limit stopper is rotatably sleeved on the rod portion of the fixing screw.

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

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

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

[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 grabber placement slot for placing a grabber, a single hook tool placement slot for placing a single hook tool, and a double hook tool placement slot for placing a double hook tool.

[0021] The present invention also provides a method for disassembling a hot chamber for an active zone of an irradiation device, using any one of the above-mentioned hot chamber disassembly devices for an active zone of an irradiation device, comprising the following steps:

[0022] S1, inserting the pin at the bottom of the active area into the positioning hole on the fixed base, and limiting the upward movement of the active area by the first limiter;

[0023] S2. Use a wrench to unscrew the countersunk screws that secure the hanging joint;

[0024] S3, insert the cross gripper into the lifting joint and rotate it so that the gripping rod is inserted into the slot on the side of the lifting joint, and lift the lower lifting joint upward;

[0025] S4, taking out each sample module in turn;

[0026] S5, placing a single sample module on the fixed base, and limiting the upward movement of the sample module by a second limiting member;

[0027] S6. Use the grabber to extract the positioning plate upwards;

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

[0029] S8. Use the double hook tool to extract the sample plate upwards;

[0030] S9. Take out 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 the present invention, a hot chamber disassembly device specially used for the active zone of the irradiation device is proposed, which realizes the disassembly of various components of the active zone by setting a fixed base, a first limit member, a wrench, a cross gripper, a second limit member, a grabbing member, a single hook tooling and a double hook tooling, and combining with a manipulator.

[0033] 2. In the present invention, the pin at the bottom of the active area is inserted into the positioning hole on the fixed base. In actual application, adding a counterweight to the fixed base can prevent the active area from tipping over during operation. At the same time, the first limiter can limit the upward movement of the active area, and the second limiter can limit the upward movement of a single sample module, thereby preventing a single tool from taking away other components when cooperating with a manipulator to disassemble a component, making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 A schematic diagram of the structure of a hot chamber disassembly device for an active area of ​​an irradiation device provided by the present invention;

[0036] Figure 2 It is a structural schematic diagram of a fixed base;

[0037] Figure 3 is a schematic structural diagram of a first limiting member;

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

[0039] Figure 5 It is a structural schematic diagram of the cross gripper;

[0040] Figure 6 It is a schematic diagram of the use status of the cross gripper;

[0041] Figure 7 It is a schematic diagram of the use status of the grabbing piece;

[0042] Figure 8 It is the main view of the grasping part;

[0043] Fig. 9 is a schematic diagram of the wrench in use;

[0044] Fig.10 This is a schematic diagram of the use status of a single hook tooling;

[0045] Fig.11 This is a schematic diagram of the double hook tooling in use;

[0046] Icon: 1-fixed base, 101-handle, 102-limiting groove, 103-positioning hole, 2-first limiting piece, 201-limiting block, 202-connecting screw, 203-fixing screw, 3-wrench, 301-lever, 302-cross handle, 4-cross gripper, 401-gripper body, 402-first lifting ring, 403-gripper, 5-second limiting piece, 6-grabbing piece, 601- Grabbing body, 602-second lifting ring, 603-grabbing arm, 604-barb, 7-single hook tooling, 701-first tooling body, 702-first barb rod, 8-double hook tooling, 801-second tooling body, 802-second barb rod, 9-sample module, 901-positioning pressure plate, 902-blocking piece, 903-grid plate, 904-sample plate, 10-lifting joint, 11-countersunk screw. DETAILED DESCRIPTION

[0047] Example 1

[0048] refer to Figure 1 The present embodiment provides a hot chamber disassembly device for the active zone of an irradiation device, comprising a fixed base 1, a first limiter 2, a wrench 3, a cross gripper 4, a second limiter 5, a grabbing member 6, a single hook tool 7 and a double hook tool 8. During disassembly, various disassembly tools are used in combination with a manipulator to realize the disassembly of various components of the active zone.

[0049] refer to Figure 2 The fixed base 1 is used to place the active area, and a plurality of positioning holes 103 are provided on the top thereof. The number and position of the positioning holes 103 match the number and position of the pins at the bottom of the active area. When in use, the pins at the bottom of the active area are inserted into the positioning holes 103, and then the active area can be prevented from tipping over during operation by weighting the fixed base 1. Furthermore, a limiting sink 102 is provided on the top of the fixed base 1, and the positioning holes 103 are provided at the bottom of the limiting sink 102. The diameter of the limiting sink 102 matches the maximum diameter of the active area and the sample module 9 to limit displacement.

[0050] In this embodiment, a rotatable handle 101 is provided on the top of the fixed base 1 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 the operation.

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

[0052] When in use, the limit stop block 201 is rotated to press on the grid plate 903 (it is easy to understand that the limit stop block 201 of the first limit member 2 presses on the grid plate 903 of the lowest sample module 9 in the active area), so as to limit the upward movement of the active area or the single sample module 9. At the same time, the fixed base 1 itself limits the downward movement of the active area or the single sample module 9, that is, after the limit stop block 201 is moved into place, the active area or the single sample module 9 is fixed, so as to avoid a single tool taking away other components when cooperating with the manipulator to disassemble a component, and thus the operation is more convenient.

[0053] It is easy to understand that the difference between the first limiter 2 and the second limiter 5 is that the length of the connecting rod is different, that is, the height of the limiter block 201 is different. In other embodiments, the first limiter 2 and the second limiter 5 can of course adopt other structures, without specific limitation, as long as they can limit (and release the limit) the upward movement of the active area and the single sample module 9, and at the same time, they should be easy for the robot to operate.

[0054] On the basis of the above, the limit stopper 201 of this embodiment is arranged as follows: the connecting rod includes a connecting screw 202 and a fixing screw 203, the fixing base 1 is provided with a threaded hole connected to the connecting screw 202, the fixing screw 203 is connected to the head of the connecting screw 202, and the limit stopper 201 is rotatably sleeved on the rod of the fixing screw 203. In other embodiments, of course, other methods can be used to install the limit stopper 201 on the connecting rod, for example, the limit stopper 201 is installed on the connecting rod through a bearing.

[0055] Furthermore, two first limiting members 2 and two second limiting members 5 are symmetrically arranged, that is, after the active area or the single sample module 9 is placed in the limiting sink 102, the two first limiting members 2 are located at two opposite sides of the active area or the single sample module 9, and the two second limiting members 5 and the two first limiting members 2 are staggered and are also located at two opposite sides of the active area or the single sample module 9. Such an arrangement facilitates better fixation of the active area and the single sample module 9.

[0056] refer to Fig. 9 The wrench 3 is used to turn the countersunk screw 11. The wrench 3 includes a lever 301 that can cooperate with the countersunk groove of the head of the countersunk screw 11, and a cross handle 302 is provided at one end of the lever 301. It is easy to understand that the shape of the cross section of the countersunk groove of 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 of 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 rectangular to match it. The lever 301 is inserted into the countersunk groove of the head of the countersunk screw 11, and the cross handle 302 is rotated by two manipulators to turn the countersunk screw 11.

[0057] refer to Figure 5and Figure 6 The cross gripper 4 is used to grab the hanging joint 10. The cross gripper 4 includes a gripper body 401, a first hanging ring 402 at one end of the gripper body 401, and a plurality of gripping rods 403 that can be inserted into the slots on the side of the hanging joint 10 are provided 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 hanging joint 10. When in use, after removing the countersunk screw 11 connected to the hanging joint 10, the cross gripper 4 is suspended in the hot chamber by the first hanging ring 402 and moved up and down. The gripper body 401 is rotated by two manipulators, so that the gripping rod 403 can be inserted into the slot on the side of the hanging joint 10, and then lifted up to disassemble the hanging joint 10. Of course, in other embodiments, two gripping rods 403 can also be provided, arranged in a straight line, or other numbers can be provided according to the position of the slots on the side of the hanging joint 10 and arranged in a corresponding shape.

[0058] In addition, the cross gripper 4 can also be used to transport the active area. Since the active area is in the shape of a long cylinder, the maximum distance that the manipulator can open is limited, and it is inconvenient to grab things with a long cylinder. The active area can be connected through the cross gripper 4, and the manipulator grabs the first lifting ring 401 on the cross gripper 4 to move the active area.

[0059] refer to Figure 7 and Figure 8 The grabbing member 6 is used to grab the positioning plate 901. The grabbing member 6 includes a grabbing body 601. A second hanging ring 602 is provided at one end of the grabbing body 601. Grabbing arms 603 are provided at two opposite sides of the other end of the grabbing body 601. The ends of the grabbing arms 603 are provided with barbs 604 that can be inserted into the slots on the side of the positioning plate 901. When in use, similar to the cross gripper 4, the grabbing member 6 is suspended in the hot chamber by the second hanging ring 602 and moved up and down. The grabbing body 601 is rotated by two manipulators, 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 removed by lifting it up.

[0060] refer to Fig.10 The single hook tooling 7 is used to grab the baffle 902, and the barb 604 tooling includes a first tooling body 701. A first hook rod is provided at one end of the first tooling body 701, and the first hook rod can be inserted into the round hole set on the baffle 902. When in use, after removing the positioning pressure plate 901, the first tooling body 701 is clamped by two manipulators, and the first hook rod is inserted downward into the round hole set on the baffle 902, and pulled outward to remove the baffle 902.

[0061] refer to Fig.11The double-hook tooling 8 is used to grab the sample plate 904. The double-hook tooling 8 includes a second tooling body 801. Two second hook rods are provided at one end of the second tooling body 801. The second hook rods can be inserted into the round holes set on the sample plate 904. When in use, after the blocking piece 902 is removed, the sample plate 904 is unlocked, and the two second hook rods are inserted into the round holes set on the sample plate 904, and then lifted up to remove the sample plate 904.

[0062] In practical application, the first tool body 701 and the second tool body 801 are configured as an I-beam structure, which is easy to understand. The two manipulators are in a pliers shape, and the I-beam structure is convenient for the manipulator to operate. In addition, the lifting rings of each part (i.e., the first lifting ring 402 and the second lifting ring 602) are all for the convenience of the manipulator to operate.

[0063] Reference again Figure 1 and Figure 2 On the basis of 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 grabber placement slot for placing the grabber 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. Such a configuration is convenient for storing various disassembly tools (i.e., the first limiting member 2, the wrench 3, the cross gripper 4, the second limiting member 5, the grabber 6, the single hook tool 7 and the double hook tool 8). It is worth noting that the shape of each placement slot can be as follows Figure 1 As shown, of course, in other embodiments, each placement groove can also be designed into 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 disassembling a hot chamber for an active zone of an irradiation device, using the hot chamber disassembly device for an active zone of an irradiation device provided in Embodiment 1, including the following steps:

[0066] S1, insert the pin at the bottom of the active area into the positioning hole 103 on the fixed base 1, and limit the upward movement of the active area by the first limiter 2, that is, place the active area in the limit sink 102, insert the pin at the bottom of the active area into the positioning hole 103 on the fixed base 1, rotate the limit stopper 201, press the top of the grid plate 903 of the lowest layer of the sample module 9 in the active area, and fix the active area;

[0067] S2, use the wrench 3 to unscrew the countersunk screw 11 fixing the hanging joint 10, that is, two mechanical clamping wrenches 3 are used to insert the lever 301 into the countersunk groove of the head of the countersunk screw 11, and then the two mechanical hands rotate the cross handle 302 to remove the countersunk screw 11, so as to unlock the hanging joint 10;

[0068] S3, insert the cross gripper 4 into the hanging joint 10 and rotate it through two manipulators, so that the grab bar 403 is inserted into the slot on the side of the hanging joint 10, and the lower hanging joint 10 is lifted upward (as mentioned above, the cross gripper 4 is suspended in the hot chamber by the first hanging ring 402 and moves up and down), and the hanging joint 10 is disassembled;

[0069] S4, taking out each sample module 9 in turn;

[0070] S5. Place a single sample module 9 on the fixed base 1 and limit the upward movement of the sample module 9 by the second limiting member 5; that is, place the single sample module 9 into the limiting sink 102 on the fixed base 1, move the limiting block 201 to press the top of the grid plate 903, so as to fix the sample module 9.

[0071] S6, use the gripper 6 to upwardly extract the positioning plate 901. As described 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 two manipulators, so that the two barbs 604 can be inserted into the slots on the side of the positioning plate 901, and then the positioning plate 901 is extracted to realize disassembly;

[0072] S7, use the single hook tool 7 to hook out the baffle 902, that is, clamp the first tool body 701 with two manipulators, 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 extract the sample plate 904 upwards, that is, clamp the second tool body 801 with two manipulators, and then insert the two second hook rods into the circular holes set on the sample plate 904 from the side, and lift it upwards to remove the blocking piece 902;

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

[0075] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hot chamber disassembly device for an active zone of an irradiation device, characterized in that: include: A fixed base for placing the active area, with a plurality of positioning holes on the top thereof that can match the pins at the bottom of the active area; A first limiting member for limiting upward movement of the active area, which is connected to the fixed base; A wrench for turning a countersunk screw comprises a lever that can cooperate with a countersunk groove on the head of the countersunk screw, and a cross handle is provided at one end of the lever; A cross gripper for grabbing a lifting joint, comprising a gripper body, a first lifting ring at one end of the gripper body, and a plurality of gripping rods which can be inserted into the side slots of the lifting joint along the circumferential direction at the other end of the gripper body; A second limiting member for limiting the upward movement of a single sample module, which is connected to the fixed base; A grabbing member for grabbing the positioning plate comprises a grabbing body, one end of which is provided with a second lifting ring, and two opposite sides of the other end of the grabbing body are provided with grabbing arms, and the ends of the grabbing arms are provided with barbs that can be inserted into the side slots of the positioning plate; A single hook tool for grabbing the baffle, comprising a first tool body, one end of which is provided with a first hook rod, and the first hook rod can be inserted into a circular hole provided on the baffle; as well as The double-hook tool for grabbing a sample plate comprises a second tool body, one end of which is provided with two second hook rods, and the second hook rods can be inserted into round holes arranged on the sample plate.

2. The hot chamber disassembly device for the active area of ​​the irradiation device according to claim 1, characterized in that: The first limiting member and the second limiting member both include a limiting stopper and a connecting rod. The connecting rod is connected to the fixed base via a thread, and the limiting stopper is rotatably sleeved on the connecting rod.

3. The hot chamber disassembly device for the active area of ​​the irradiation device according to claim 2, characterized in that: The connecting rod comprises a connecting screw and a fixing screw. The fixing base is provided with a threaded hole connected with the connecting screw. The fixing screw is connected to the head of the connecting screw. The limit stopper is rotatably sleeved on the rod of the fixing screw.

4. The hot chamber disassembly device for the active area of ​​the irradiation device according to claim 1, characterized in that: Two of the first limiting members and two of the second limiting members are symmetrically arranged.

5. The hot chamber disassembly device for the active area of ​​the irradiation device according to claim 1, characterized in that: A limiting groove is arranged on the top of the fixed base, and the positioning hole is arranged on the bottom of the limiting groove.

6. The hot chamber disassembly device for the active area of ​​the irradiation device according to any one of claims 1 to 5, characterized in that: A rotatable handle is provided on the top of the fixed base.

7. The hot chamber disassembly device for the active area of ​​the irradiation device according to any one of claims 1 to 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 grabber placement slot for placing a grabber, a single hook tool placement slot for placing a single hook tool and a double hook tool placement slot for placing a double hook tool.

8. A method for disassembling a hot chamber in an active zone of an irradiation device, using the hot chamber disassembly device for an active zone of an irradiation device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, inserting the pin at the bottom of the active area into the positioning hole on the fixed base, and limiting the upward movement of the active area by the first limiter; S2. Use a wrench to unscrew the countersunk screws that secure the hanging joint; S3, insert the cross gripper into the lifting joint and rotate it so that the gripping rod is inserted into the slot on the side of the lifting joint, and lift the lower lifting joint upward; S4, taking out each sample module in turn; S5, placing a single sample module on the fixed base, and limiting the upward movement of the sample module by a second limiting member; S6. Use the grabber to extract the positioning plate upwards; S7. Use a single hook tool to hook out the baffle; S8. Use the double hook tool to extract the sample plate upwards; S9. Take out 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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