Radioactive rod bundle disassembling and uncovering device

Abstract

The utility model belongs to the field of nuclear industry, and discloses a radioactive rod bundle disintegration and uncovering device which comprises a positioning mechanism, a rotating mechanism, a gland displacement mechanism, a clamping mechanism and a jacking mechanism, the positioning mechanism is used for supporting and positioning a rod bundle frame, the rotating mechanism is used for driving the rod bundle frame to rotate, and the gland displacement mechanism is used for clamping the rod bundle frame. The gland displacement mechanism is used for limiting a gland of the rod bundle frame, the clamping mechanism is used for clamping the rod bundle frame, and the jacking mechanism is used for jacking out a radioactive metal rod and the gland on the rod bundle frame. The rod bundle frame cover opening and rod taking device is reasonable and ingenious in structural design, the rod bundle frame cover opening and rod taking actions are achieved through the positioning mechanism, the rotating mechanism, the cover pressing displacement mechanism, the clamping mechanism, the jacking mechanism and the like, work is efficient, and automation and safety are high.

Description

Technical Field

[0001] The utility model relates to the field of nuclear industry, and more specifically, to a radioactive rod bundle disintegration and cover opening device. Background Art

[0002] A rod cluster rack is a mechanism for installing radioactive metal rods, which includes a bottom plate, a top plate, a center tube connected between the bottom plate and the top plate, and a pressure cover rotatably embedded in the top plate. A number of radioactive metal rods are installed between the bottom plate and the top plate. The top plate also has a number of separation holes corresponding to the radioactive metal rods one by one. The pressure cover covers these through holes and can be removed by rotating the pressure cover to take out the radioactive metal rods. The current existing technology lacks a device that can automatically and efficiently complete the opening of the cover and the removal of the rods.

[0003] Based on the above problems, the applicant proposes a radioactive rod bundle disassembly and cover opening device. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a radioactive rod bundle disassembly and cover opening device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A radioactive rod bundle disassembly and cover opening device, comprising:

[0007] A positioning mechanism, the positioning mechanism is used to support and position the rod cluster rack;

[0008] A rotating mechanism, the rotating mechanism is used to drive the rod cluster rack to rotate;

[0009] A gland displacement mechanism, the gland displacement mechanism is used to limit the gland of the rod cluster rack;

[0010] a clamping mechanism, the clamping mechanism being used to clamp the rod cluster rack; and

[0011] A lifting mechanism is used to push out the radioactive metal rods and the gland on the rod cluster rack.

[0012] Furthermore, the positioning mechanism includes a support seat and a positioning cylinder arranged on the support seat, the support seat is used to support the rod cluster rack, and the positioning cylinder is used to surround the rod cluster rack.

[0013] Furthermore, the rotating mechanism includes a lower limit assembly and a rotating drive assembly for driving the lower limit assembly to rotate, and the lower limit assembly is used to cooperate with the bottom plate of the rod cluster rack to enable the rod cluster rack to rotate with the rotation of the lower limit assembly.

[0014] Furthermore, the lower limit assembly includes at least one lower limit member, which is an elastic pin that is correspondingly plugged into the lower through hole on the bottom plate of the rod cluster rack.

[0015] Furthermore, the gland displacement mechanism includes an upper limit assembly and a lifting drive assembly for driving the upper limit assembly to lift and lower. The upper limit assembly is used to cooperate with the gland limit of the rod bundle rack to prevent the gland from rotating.

[0016] Furthermore, the gland displacement mechanism also includes a flip assembly, the flip assembly is installed and drives the upper limit assembly to flip, and the lifting drive assembly drives the flip assembly to lift and lower together with the upper limit assembly.

[0017] Furthermore, the upper limit assembly includes at least one upper limit piece, and the upper limit piece is correspondingly plugged into a slot on the gland of the rod cluster rack.

[0018] Furthermore, the clamping mechanism clamps the bottom plate of the rod cluster rack from the side, and comprises two clamping jaws and a clamping drive assembly for driving the two clamping jaws to move closer and apart.

[0019] Furthermore, the lifting mechanism includes a lifting rod for lifting the radioactive metal rod and a lifting drive assembly for driving the lifting of the lifting rod.

[0020] Furthermore, it also includes a radioactive metal rod identification mechanism, and the radioactive metal rod identification mechanism is used to identify the radioactive metal rods on the rod cluster rack.

[0021] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a reasonable and ingenious structural design, and realizes the opening and removing of the rod bundle rack through the positioning mechanism, the rotating mechanism, the cover displacement mechanism, the clamping mechanism, the lifting mechanism and other structures, and has high work efficiency, automation and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the schematic diagrams of the rod bundle rack structure;

[0023] Figure 2 This is the second schematic diagram of the rod bundle rack structure;

[0024] Figure 3 It is a schematic diagram of the exploded structure of the rod bundle rack;

[0025] Figure 4 This is one of the schematic diagrams of the gland structure in the rod bundle rack;

[0026] Figure 5 This is the second schematic diagram of the gland structure in the rod bundle rack;

[0027] Figure 6 It is a schematic diagram of the structure of the utility model;

[0028] Figure 7 This is one of the structural schematic diagrams of the utility model when some penetration pieces are removed;

[0029] Figure 8 This is the second structural diagram of the utility model when some penetration pieces are removed;

[0030] Fig. 9 This is a schematic diagram of the structure of the clamping mechanism and the lifting mechanism in the utility model;

[0031] Fig.10 for Fig. 9 Enlarged view of point A in the middle;

[0032] Fig.11 This is a schematic diagram of the connection structure between the jacking mechanism and the support seat in the utility model;

[0033] Fig.12 It is a schematic diagram of the connection structure of the support seat, the lifting mechanism and part of the rotating mechanism in the utility model;

[0034] Fig.13 This is one of the schematic diagrams of the displacement mechanism of the gland in the utility model;

[0035] Fig.14 This is the second structural schematic diagram of the pressure cover displacement mechanism in the utility model.

[0036] In the figure: support seat 1, positioning cylinder 2, base 3, rotating mechanism 4, lower limit member 400, center pin 401, main shaft 402, gear transmission structure 403, transmission box 404, through-piece 405, gland displacement mechanism 5, upper limit member 500, cantilever 501, rotating seat 502, lifting slide 503, support frame 504, vertical slide rail 505, connecting seat 506, lifting drive 507, flip drive 508, clamping mechanism 6, clamping claw 600, clamping drive assembly 601, lifting mechanism 7, ejector rod 700, lifting drive assembly 701, ring installation Plate 702, radioactive metal rod identification mechanism 8, radioactive metal rod identification mechanism 8, metal plate identification mechanism body 800, identification mechanism mounting frame 801, identification mechanism moving driver 802, identification mechanism driver mounting seat 803, rod cluster frame 9, top plate 900, upper through hole 9000, annular slide groove 9001, arc groove 9002, separation hole 9003, step 9004, bottom plate 901, lower through hole 9010, lifting hole 9011, center tube 902, pressure cover 903, slot 9030, sliding protrusion 9031, radioactive metal rod 904. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] like Figure 1-Figure 5 As shown, the rod cluster rack 9 includes a top plate 900 , a bottom plate 901 , a center tube 902 and a cover plate 903 . The top plate 900 and the bottom plate 901 are arranged opposite to each other up and down, and the centers of the two are connected by the center tube 902 . A plurality of upper through holes 9000 are evenly distributed on the top plate 900 .

[0039] like Figure 4 and Figure 5 As shown, an annular groove 9001 is provided on the upper surface of the top plate 900, and a plurality of arc grooves 9002 corresponding to the positions of the annular groove 9001 are evenly distributed on the lower surface, and the two are connected up and down, and the width of the annular groove 9001 is smaller than the width of the arc groove 9002, so a step 904 is formed between the two, and a separation hole 9003 is provided at one end of the arc groove 9001, and the separation hole 9003 passes upward to the upper surface of the top plate 900, and the diameter of the separation hole 9003 is larger than the width of the arc groove 9001.

[0040] like Figure 3 As shown, the gland 903 is an annular structure, and its outer diameter and inner diameter are consistent with the annular groove 9001. A plurality of groups of sliding protrusions 9031 are evenly distributed on the gland 903, and each group of sliding protrusions 9031 is respectively arranged on the inner and outer walls of the gland 903 to form a butterfly structure, and the thickness of the sliding protrusion 9031 is about half of the gland 903, so that the top height of the sliding protrusion 9031 is lower than the top height of the gland 903 body. A plurality of slots 9030 are evenly distributed on the gland 903. A plurality of lower through holes 9010 are evenly distributed on the bottom plate 901, and the number of the lower through holes 9010 is the same as the number of the slots 9030, and a plurality of top holes 9011 are evenly distributed, and the top holes 9011 are stepped holes that are wide at the top and narrow at the bottom.

[0041] like Figure 2 As shown, the pressure cover 903 is embedded in the annular groove 9001, and the pressure cover 903 can slide in the annular groove 9001, and the sliding protrusions 9031 of the pressure cover 903 are slidably connected to the arc groove 9002 of the top plate 900 one by one. Under normal circumstances, the sliding protrusions 9031 are blocked by the steps 9004, and the pressure cover 903 cannot be separated from the top plate 900. However, when the sliding protrusions 9031 slide to the separation hole 9003, the steps 9004 no longer block the sliding protrusions 9031, and the pressure cover 903 can be separated from the top plate 900 as a whole.

[0042] like Figure 1 As shown, a number of radioactive metal rods 904 are evenly distributed between the top plate 900 and the bottom plate 901 , and the upper ends of the radioactive metal rods 904 are inserted into the separation holes 9003 of the top plate 900 , and the lower ends are inserted into the lifting holes 9011 of the bottom plate 901 .

[0043] See also Figure 6-Figure 14 A radioactive rod bundle disassembly and opening device comprises a base 3, a positioning mechanism, a rotating mechanism 4, a capping displacement mechanism 5, a clamping mechanism 6, a lifting mechanism 7 and a radioactive metal rod identification mechanism 8. The positioning mechanism is used to support and position a rod bundle rack 9, the rotating mechanism 4 is used to drive the rod bundle rack 9 to rotate, the capping displacement mechanism 5 is used to limit the capping 903, the clamping mechanism 6 is used to clamp the rod bundle rack 9, the lifting mechanism 7 is used to push out the radioactive metal rod 904 and the capping 903, and the radioactive metal rod identification mechanism 8 is used to identify the radioactive metal rod 904 on the rod bundle rack 9.

[0044] Continue reading Figure 7 In one embodiment of the utility model, the positioning mechanism is installed on the base 3, which includes a support seat 1 and a positioning tube 2 arranged on the support seat 1, the support seat 1 is used to support the rod cluster rack 9, and the positioning tube 2 is used to surround the rod cluster rack 9 to provide protection for the rod cluster rack 9.

[0045] Continue reading Figure 6 , Fig. 9 , Fig.10 and Fig.12 In one embodiment of the utility model, the rotating mechanism 4 includes a lower limit assembly and a rotating drive assembly for driving the lower limit assembly to rotate, and the lower limit assembly is used to cooperate with the bottom plate 901 of the rod cluster rack 9 to enable the rod cluster rack 9 to rotate with the rotation of the lower limit assembly.

[0046] Further reading Figure 6 , Fig. 9 , Fig.10 and Fig.12In one embodiment of the utility model, the lower limit assembly includes a main shaft 402, the main body of the main shaft 402 is rotatably installed in the support seat 1, the upper end of the main shaft 402 passes through the top of the support seat 1 to cooperate with the rod cluster rack 9, and an upper center pin 401 is set at the center of the upper end of the main shaft 402. The center pin 401 is used to be plugged with the lower end of the tube cavity of the center tube 902 of the rod cluster rack 9. Two lower limit members 400 are also symmetrically set at the upper end of the main shaft 402. The lower limit members 400 are located at a non-center position of the main shaft 402, and are preferably an elastic pin structure for correspondingly plugging with the lower through hole 9010 on the bottom plate 901 of the rod cluster rack 9. The elastic pin is also called a spring pin, and its structure is a well-known technology and will not be described in detail. The rotary drive assembly includes a through piece 405, a transmission box 404 and a gear transmission structure 403. The transmission box 404 is installed at the upper end of the base 3 and is located on one side of the support seat 1. The gear transmission structure 403 is located inside the support seat 1. The through piece 405 is matched with the input end of the transmission box 404, and the output end of the transmission box 404 is matched with the lower end of the main shaft 402 through the gear transmission structure 403.

[0047] When the rotating mechanism 4 is working, the penetration piece 405 drives the transmission box 404 to work, the transmission box 404 drives the main shaft 402 to rotate through the gear transmission structure 403, and the main shaft 402 drives the rod cluster frame 9 to rotate through the lower limit piece 400.

[0048] It should be noted that the number of the lower limit members 400 can be set as required. The tooth transmission structure 403 can be replaced by a pulley structure or a sprocket structure. The penetration member 405 can be replaced by a motor installed on the upper end of the base 3.

[0049] Continue reading Fig.13 and Fig.14 The pressure cover displacement mechanism 5 is installed on the base 3, and includes an upper limit assembly and a lifting drive assembly for driving the upper limit assembly to lift and lower. The upper limit assembly is used to cooperate with the pressure cover 903 of the rod bundle rack 9 to limit the pressure cover 903 so that the pressure cover 903 cannot rotate.

[0050] Continue reading Fig.13 and Fig.14 In one embodiment of the utility model, the cover displacement mechanism 5 also includes a flip assembly, which is installed to drive the upper limit assembly to flip, and the lifting drive assembly drives the flip assembly to lift and lower together with the upper limit assembly.

[0051] Further reading Fig.13 and Fig.14 In one embodiment of the utility model, the upper limit assembly includes a cantilever 501, and a plurality of lower limit members 500 are evenly distributed around the bottom of one end of the cantilever 501 toward the positioning tube 2. The lower limit member 500 is a convex structure, and its shape is consistent with the groove 9030 on the pressure cover 903, and it is used to be plugged into the groove 9030.

[0052] Further reading Fig.13 and Fig.14 In one embodiment of the utility model, the lifting drive assembly includes a support frame 504, a lifting drive 507, a connecting seat 506 and a vertical slide rail 505, the lifting drive 507 and the vertical slide rail 505 are installed on the support frame 504, the output end of the lifting drive 507 is connected to the connecting seat 506, the flipping assembly includes a lifting slide 503, a rotating seat 502 and a flipping drive 508, the lifting slide 503 is slidably installed with the slide rail 505 on the support frame 504 through a slider, the rotating seat 502 and the flipping drive 508 are both installed on the lifting slide 503, the middle part of the cantilever 501 is rotatably installed with the rotating seat 502 through a rotating shaft, and the end of the cantilever 501 facing away from the upper limit member 500 is rotatably matched with the output end of the flipping drive 508.

[0053] When the cover displacement mechanism 5 is working, the lifting driver 507 drives the lifting slide 503 and the cantilever 501 and the upper limit positioning member 500 thereon to lift and lower, and the flip driver 508 drives the cantilever 501 and the upper limit positioning member 500 thereon to flip, and the upper limit positioning member 500 is inserted into the slot 9030 of the cover 903 through lifting and flipping.

[0054] It should be noted that the lifting actuator 507 and the tilting actuator 508 are preferably pneumatic cylinders, and electric cylinders or hydraulic cylinders may also be used.

[0055] Continue reading Fig. 9 and Fig.10 In one embodiment of the utility model, the clamping mechanism 6 is installed at the upper end of the support seat 1, which clamps the bottom plate 901 of the rod cluster rack 9 from the side, and includes two clamping jaws 600 and a clamping drive assembly 601 for driving the two clamping jaws 600 to move closer and apart.

[0056] It should be noted that the clamping mechanism 6 is an automatic clamp, and its structure is a well-known technology in the field of mechanical clamps, which will not be described in detail.

[0057] Continue reading Fig.10 and Fig.11In one embodiment of the utility model, the lifting mechanism 7 includes an annular mounting plate 702, a plurality of push rods 700 evenly distributed on the annular mounting plate 702 and used to lift the radioactive metal rod 904, and a lifting drive assembly 701 used to drive the annular mounting plate 702 and the push rod 700 to rise and fall. There are two lifting drive assemblies 701, which are installed on both sides of the upper end of the support seat 1. The annular mounting plate 702 is an annular structure, which is sleeved outside the main shaft 402, and its two sides are connected to the output ends of the two lifting drive assemblies 701. The annular mounting plate 702 and the push rod 700 are both located in the support seat 1, and a plurality of through holes corresponding to the push rod 700 and the radioactive metal rod 904 of the rod bundle rack 9 are evenly distributed on the top of the support seat 1, and the push rod 700 passes through the through holes.

[0058] When the lifting mechanism 7 is working, the lifting drive assembly 701 drives the annular mounting plate 702 and the ejector rod 700 to move up and down.

[0059] It should be noted that the jacking drive assembly 701 is preferably a pneumatic cylinder, and an electric cylinder or an oil cylinder may also be used.

[0060] Continue reading Figure 7 and Figure 8 In one embodiment of the utility model, the radioactive metal rod identification mechanism 8 includes a metal plate identification mechanism body 800, an identification mechanism mounting frame 801, an identification mechanism moving driver 802, and an identification mechanism driver mounting seat 803. The identification mechanism driver mounting seat 803 is mounted on the upper end of one side of the positioning cylinder 2, the identification mechanism moving driver 802 is mounted on the identification mechanism driver mounting seat 803, the identification mechanism mounting frame 801 is mounted on the output end of the identification mechanism moving driver 802, and the metal plate identification mechanism body 800 is mounted on the identification mechanism mounting frame 801. The identification mechanism moving driver 802 is used to drive the metal plate identification mechanism body 800 to move in the horizontal direction.

[0061] When the radioactive metal rod 904 needs to be identified, the identification mechanism moving driver 802 drives the metal plate identification mechanism body 800 to extend toward the center of the positioning tube 2 so that the metal plate identification mechanism body 800 contacts the radioactive metal rod 904 .

[0062] It should be noted that the identification mechanism moving driver 802 is preferably a pneumatic cylinder, and an electric cylinder or an oil cylinder may also be used.

[0063] The working process of the above-mentioned radioactive rod bundle disassembly and cover opening device is as follows:

[0064] Step 1: The flip driver 508 drives the cantilever 501 to flip upward, and then puts the rod cluster rack 9 into the positioning mechanism for support and positioning.

[0065] Step 2, the pressure cover 903 of the rod cluster frame 9 is limited by the pressure cover displacement mechanism 5 so that the pressure cover 903 cannot rotate.

[0066] Step 3, the main body of the rod cluster frame 9 is driven to rotate relative to the pressure cover 903 by the rotating mechanism 4, so that the pressure cover 903 is changed from a locked state to a loosened state.

[0067] Step 4: clamp the rod cluster rack 9 by the clamping mechanism 6 .

[0068] Step 5: eject the radioactive metal rods 904 and the gland 903 on the rod cluster rack 9 through the jacking mechanism 7.

[0069] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A radioactive rod bundle disassembly and cover opening device, characterized in that: include: A positioning mechanism, the positioning mechanism being used to support and position the rod cluster rack (9), the positioning mechanism comprising a support seat (1) and a positioning cylinder (2) arranged on the support seat (1), the support seat (1) being used to support the rod cluster rack (9), and the positioning cylinder (2) being used to surround the rod cluster rack (9); A rotating mechanism (4), the rotating mechanism (4) being used to rotate the rod cluster rack (9), the rotating mechanism (4) comprising a lower limit assembly and a rotation drive assembly for driving the lower limit assembly to rotate, the lower limit assembly being used to cooperate with a bottom plate (901) of the rod cluster rack (9) so that the rod cluster rack (9) can rotate along with the rotation of the lower limit assembly; A gland displacement mechanism (5), the gland displacement mechanism (5) being used to limit the gland (903) of the rod cluster rack (9), the gland displacement mechanism (5) comprising an upper limit assembly and a lifting drive assembly for driving the upper limit assembly to lift, the upper limit assembly being used to limit the gland (903) of the rod cluster rack (9) so that the gland (903) cannot rotate; A clamping mechanism (6), the clamping mechanism (6) being used to clamp the rod cluster rack (9), the clamping mechanism (6) clamping the bottom plate (901) of the rod cluster rack (9) from the side, comprising two clamping claws (600) and a clamping drive assembly (601) for driving the two clamping claws (600) to move closer and further apart; and A lifting mechanism (7) is used to lift out the radioactive metal rod (904) and the gland (903) on the rod cluster rack (9), and the lifting mechanism (7) comprises a lifting rod (700) for lifting the radioactive metal rod (904) and a lifting drive assembly (701) for driving the lifting rod to move upward and downward.

2. The radioactive rod bundle disassembly and cover opening device according to claim 1, characterized in that: The lower limit assembly comprises at least one lower limit member (400), wherein the lower limit member (400) is an elastic pin which is correspondingly plugged into a lower through hole (9010) on a bottom plate (901) of a rod cluster rack (9).

3. The radioactive rod bundle disassembly and cover opening device according to claim 1, characterized in that: The gland displacement mechanism (5) further comprises a flipping assembly, the flipping assembly is installed to drive the upper limit assembly to flip, and the lifting drive assembly drives the flipping assembly to rise and fall together with the upper limit assembly.

4. The radioactive rod bundle disassembly and cover opening device according to claim 1, characterized in that: The upper limit assembly comprises at least one upper limit member (500), and the upper limit member (500) is correspondingly plugged into a slot (9030) on a pressure cover (903) of a rod cluster rack (9).

5. The radioactive rod bundle disassembly and cover opening device according to claim 1, characterized in that: It also includes a radioactive metal rod identification mechanism (8), wherein the radioactive metal rod identification mechanism (8) is used to identify the radioactive metal rods (904) on the rod cluster rack (9).

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