Auxiliary calibration tool

Abstract

The utility model belongs to the technical field of nuclear power, and discloses an auxiliary calibration tool. The device comprises a rotating component, a lifting component and a rotating plate, the rotating component comprises a first base, a placing plate and a first guide rail, the first guide rail is arc-shaped, a first guide groove is formed in the lower side of the placing plate, the first guide rail is arranged in the first guide groove in a penetrating mode, the placing plate slides in the length direction of the first guide rail, and an executing mechanism is placed on the placing plate; the lifting component comprises a second base, the second base is fixed to the containment pipeline, a lifting air cylinder is installed on the second base and pushes a supporting plate to move along the axis of the rotating shaft, a second guide rail is installed on the supporting plate and is in an arc shape, a second guide groove is formed in the lower side of the rotating plate, and the second guide rail is embedded in the second guide groove; the rotating plate is mounted on the lower side of the executing mechanism; the problem that in the prior art, it is difficult to install an executing mechanism back to a rotating shaft is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power, in particular to an auxiliary calibration tool. Background Art

[0002] The pneumatic butterfly valve is an isolation valve installed in the containment air filtration system of a nuclear power unit. When the nuclear power unit fails, the actuator controls the pneumatic butterfly valve to close through the rotating shaft. It can provide isolation for the containment pipeline under accident conditions and limit the release of radioactivity in the core melting accident. It is listed as an equipment with important risk by the reliability assurance outline of nuclear power plant design and is a key equipment in this system. Therefore, it is very important for this valve to be able to close normally. In order to ensure that the valve can be opened normally, it is necessary to regularly maintain the actuator on the upper side of the pneumatic butterfly valve. However, when maintaining the actuator, it is necessary to remove the actuator from the rotating shaft of the butterfly valve and place it in the maintenance area. After inspection and maintenance, it is reinstalled on the butterfly valve. The actuator weighs about 600 kg. The common method is to erect a lifting scaffold and cooperate with a chain block and a hook to lift and reinstall the actuator. However, when reinstalling, due to the small gap between the rotating shaft and the insertion hole on the actuator, alignment is required. At the same time, after the rotating shaft enters the insertion hole, it is necessary to insert the key on the rotating shaft into the keyway in the insertion hole. Since the keyway is inside the actuator and the line of sight is blocked, it is difficult for the maintenance personnel to align the key with the keyway. In addition, the actuator is prone to shaking after being hoisted into the air. During the adjustment process of aligning the keyway and the key cap, the actuator will also generate excessive shaking, increasing the difficulty of docking the actuator with the rotating shaft, increasing errors, and making the axis of the insertion hole of the actuator and the axis of the rotating shaft also in a non-parallel state. Often, the key cannot enter the keyway or the coaxiality of the rotating shaft and the insertion hole is not good, resulting in the actuator not being able to fall smoothly onto the valve body, which easily causes damage to the rotating shaft or the insertion hole, and ultimately leads to the abnormal opening and closing of the pneumatic butterfly valve. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an auxiliary calibration tool to solve the problem of the difficulty in reinstalling the actuator onto the rotating shaft in the prior art.

[0004] To achieve this purpose, the utility model adopts the following technical solutions: The utility model provides an auxiliary calibration tool, which includes a rotating member, a lifting member and a rotating plate. The rotating member includes a first base, a placing plate and a first guide rail. The first guide rail is arc-shaped. A first guiding groove is formed on the lower side of the placing plate. The first guide rail is inserted into the first guiding groove. The placing plate slides along the length direction of the first guide rail. The center of the first guide rail coincides with the axis of the rotating shaft. The executing mechanism is placed on the placing plate. The lifting member includes a second base, which is fixed on the safety shell pipeline. A lifting cylinder is installed on the second base. The lifting cylinder pushes the supporting plate to move along the axis of the rotating shaft. A second guide rail is installed on the supporting plate. The second guide rail is arc-shaped. The center of the second guide rail coincides with the axis of the rotating shaft. A second guiding groove is formed on the lower side of the rotating plate. The second guide rail is embedded in the second guiding groove. The rotating plate is installed under the executing mechanism. The rotating shaft passes through the second base and the supporting plate in sequence. A lifting ring is installed on the executing mechanism. The hook is hooked in the lifting ring.

[0005] Preferably, a first roller is rotatably installed in the first guide rail. The axis of the first roller is perpendicular to the length direction of the first guide rail. The first roller abuts against the placing plate.

[0006] Preferably, arc-shaped grooves are formed on both sides of the first guide rail. The arc-shaped grooves are parallel to each other. Plugging plates are formed by extending downward on both sides of the placing plate. The plugging plates are plugged into the arc-shaped grooves. A limiting hole is formed under the first base on the plugging plate. A limiting bolt passes through the limiting holes of the two groups of plugging plates in sequence. A limiting nut is screwed at the end of the limiting bolt.

[0007] Preferably, the second base includes two splicing parts. The splicing part includes a tray and a supporting leg. The two supporting legs are installed under the tray. The tray is semi-circular. A butting surface is formed on the tray. A plugging part and a groove part are formed on the butting surface. The splicing parts are plugged into each other. The plugging part is plugged into the groove part. A first screw hole is formed on the plugging part. A second screw hole is formed on the groove part. A fixing bolt is screwed into the first screw hole and the second screw hole in sequence.

[0008] Preferably, two installation grooves are formed on each splicing part. The lifting cylinder is fixed in the installation groove.

[0009] Preferably, an adjustment groove is formed in the splicing part. The adjustment groove is strip-shaped. The adjustment bracket is installed in the adjustment groove through an adjustment bolt. A limit plate is installed at the upper end of the adjustment bracket. The limit plate is arc-shaped. The limit plate is flush with the rotating plate in height. The limit plates are symmetrically installed on both sides of the rotating plate. The length direction of the adjustment groove is perpendicular to the symmetry axis between the limit plates.

[0010] Preferably, a sliding hole is formed in the splicing part. A limit post is installed on the support plate. The limit post is inserted into the sliding hole. The limit post moves with the support plate. A limit part is installed at the end of the limit post. The limit part abuts against the lower side of the support plate.

[0011] Preferably, the support plate is rectangular. Four groups of flanges are turned downwards circumferentially on the support plate. First observation holes are formed in three of the flanges. A notch is formed in one of the flanges. A disassembly opening is formed in the support plate. The disassembly opening communicates with the notch. The rotating shaft is arranged in the disassembly opening. Disassembly holes are formed on both sides of the notch. A disassembly bolt is installed on the disassembly plate. The disassembly bolt is screwed into the disassembly hole.

[0012] Preferably, second guide rails are respectively installed on both sides of the disassembly opening. Second rollers are rotatably installed in the second guide rails. The axis of the second roller is perpendicular to the length direction of the second guide rail. The second roller abuts against the top surface of the second guide groove; the rotating plate includes two docking parts. Second observation holes are formed on the side surfaces of the docking parts. The docking parts are semi-circular. First fixing screw holes are formed in the docking parts. First mounting bolts pass through the first fixing screw holes and are screwed onto the actuator.

[0013] Preferably, second fixing screw holes are formed in the actuator. Third fixing screw holes are formed in the safety shell pipeline. The first mounting bolts are arranged in the second fixing screw holes and the third fixing screw holes. The first mounting bolts pass through the second base and are screwed into the third fixing screw holes.

[0014] Beneficial effects: When reinstalling the actuator after inspection, one end of the actuator is placed on the placement plate and the other end is placed on the support plate. The level of the actuator is adjusted by the lifting cylinder to ensure the coaxiality of the insertion hole and the rotating shaft during the insertion process. A rotating plate is installed at the lower end of the actuator, so that the second guiding groove on the lower side of the rotating plate is docked with the second guide rail. Then, the actuator is rotated horizontally until it reaches the initial installation angle, so that the key on the rotating shaft is aligned with the key groove. The placement plate rotates on the first guide rail, and the rotating plate rotates on the second guide rail. During the rotation process, since the actuator is detached from the hook and placed on the rotating member and the lifting member, the actuator will not shake. The actuator can be quickly adjusted to the target angle, reducing the adjustment difficulty. Then, the actuator is lifted again, and the lower rotating member, lifting member and rotating plate are withdrawn. Finally, the actuator is installed on the containment vessel pipeline at the adjusted angle, so that the key on the rotating shaft is inserted into the key groove in the actuator to avoid damage, enabling the pneumatic butterfly valve to open and close normally. Brief Description of the Drawings

[0015] Figure 1 is the schematic diagram of the actuator adjustment of the present utility model;

[0016] Figure 2 is the schematic diagram of the rotating disk docking of the present utility model;

[0017] Figure 3 is the schematic diagram of the second guide rail installation of the present utility model;

[0018] Figure 4 is the installation diagram of the limit bolt of the present utility model;

[0019] Figure 5 is the main body diagram of the splicing part of the present utility model;

[0020] Figure 6 is the main body diagram of the docking part of the present utility model.

[0021] In the figure: 1. First base; 2. Placement plate; 3. First guide rail; 4. Second base; 5. Containment vessel pipeline; 6. Lifting cylinder; 7. Support plate; 8. Second guide rail; 9. Rotating plate; 10. Second guiding groove; 11. Actuator; 12. Rotating shaft; 13. Hoop; 14. First roller; 15. Arc groove; 16. Insertion plate; 17. Limit bolt; 18. Splicing part; 19. Tray; 20. Support foot; 21. Insertion part; 22. Groove part; 23. First screw hole; 24. Second screw hole; 25. Fixed bolt; 26. Installation groove; 27. Adjustment groove; 28. Adjustment bracket; 29. Limit plate; 30. Sliding hole; 31. Limit post; 32. Flange; 33. First observation hole; 34. First installation bolt; 35. Disassembly port; 36. Disassembly plate; 37. Second roller; 38. Docking part; 39. Second observation hole. Detailed Implementation Modes

[0022] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the accompanying drawings.

[0023] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0025] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the accompanying drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0026] Under the prior art, after the actuator is disassembled and repaired, during the reinstallation process, the actuator is suspended on the hook in the factory area. During the process of inserting the insertion hole of the actuator onto the rotating shaft on the containment vessel pipeline, it is necessary to make the keyway in the actuator correspond to the key on the rotating shaft to facilitate subsequent insertion. However, since the actuator is suspended on the hook, the adjustment will cause excessive shaking, resulting in inaccurate adjustment. At the same time, the rotating shaft and the insertion hole cannot be guaranteed to be coaxial, ultimately leading to damage to the insertion hole or the rotating shaft, the failure of the keyway fit, and the butterfly valve cannot be opened normally.

[0027] To solve the above problems, as Figures 1 to 6 shown, the present utility model provides an auxiliary calibration tool, which includes a rotating member, a lifting member and a rotating plate 9. The rotating member includes a first base 1, a placing plate 2 and a first guide rail 3. The first guide rail 3 is arc-shaped. A first guide groove is formed on the lower side of the placing plate 2. The first guide rail 3 is inserted into the first guide groove. The placing plate 2 slides along the length direction of the first guide rail 3. The center of the first guide rail 3 coincides with the axis of the rotating shaft 12. The executing mechanism 11 is placed on the placing plate 2. The lifting member includes a second base 4. The second base 4 is fixed on the safety shell pipeline 5. A lifting cylinder 6 is installed on the second base 4. The lifting cylinder 6 pushes the supporting plate 7 to move along the axis of the rotating shaft 12. A second guide rail 8 is installed on the supporting plate 7. The second guide rail 8 is arc-shaped. The center of the second guide rail 8 coincides with the axis of the rotating shaft 12. A second guide groove 10 is formed on the lower side of the rotating plate 9. The second guide rail 8 is embedded in the second guide groove 10. The rotating plate 9 is installed on the lower side of the executing mechanism 11. The rotating shaft 12 sequentially passes through the second base 4 and the supporting plate 7. A lifting ring 13 is installed on the executing mechanism 11. The lifting hook is hooked in the lifting ring 13 to drive the executing mechanism 11 to move.

[0028] Both ends of the executing mechanism 11 are placed on the supporting plate 7 and the placing plate 2. Since the centers of the first guide rail 3 and the second guide rail 8 are both located on the axis of the rotating shaft 12, the rotating plate 9 can rotate on the second guide rail 8, and the placing plate 2 can rotate along the arc length direction of the first guide rail 3. In this way, the executing mechanism 11 can rotate around the axis of the rotating shaft under the control of the lifting hook, and then the relative positions of the key on the rotating shaft and the insertion hole in the executing mechanism 11 can be adjusted, so that the key can be inserted into the key groove. At the same time, the executing mechanism 11 is kept horizontal by the lifting cylinder 6, and the coaxiality between the insertion hole and the rotating shaft 12 is maintained, so as to reduce the probability of damaging the rotating shaft 12 and the insertion hole during the insertion process, reduce the probability of damaging the rotating shaft 12 during the maintenance process, and improve the safety of the pneumatic butterfly valve.

[0029] A first roller 14 is rotatably installed in the first guide rail 3. The axis of the first roller 14 is perpendicular to the length direction of the first guide rail 3. The first roller 14 abuts against the placing plate 2. By providing the first roller 14, the resistance of the placing plate 2 to move is reduced. At the same time, the upper side of the placing plate 2 is an arc surface which fits with the bottom surface of the executing mechanism 11.

[0030] Arc-shaped grooves 15 are formed on both sides of the first guide rail 3. The arc-shaped grooves 15 are parallel to each other. Insertion plates 16 extend downward from both sides of the placing plate 2. The insertion plates 16 are inserted into the arc-shaped grooves 15. Limit holes are formed in the lower side of the first base 1 for the insertion plates 16. A limit bolt 17 sequentially passes through the limit holes of the two groups of insertion plates 16. A limit nut is screwed at the end of the limit bolt 17.

[0031] By installing a limit bolt 17 on the lower side of the first base 1 to limit the placement plate 2, the placement plate 2 is prevented from tipping over, enabling the placement plate 2 to slide stably along the first guide rail 3, enhancing safety. If it is necessary to remove the placement plate 2, only the limit bolt 17 needs to be unscrewed, and then the placement plate 2 can be removed from the first base 1, which is convenient for maintenance and installation.

[0032] The second base 4 includes two sets of splicing parts 18. The splicing part 18 includes a tray 19 and a support foot 20. The two sets of support feet 20 are installed on the lower side of the tray 19. The tray 19 is semicircular. A docking surface is formed on the tray 19, and a plug-in part 21 and a groove part 22 are formed on the docking surface. The splicing parts 18 are plugged into each other. The plug-in part 21 is plugged into the groove part 22. A first screw hole 23 is formed on the plug-in part 21, and a second screw hole 24 is formed on the groove part 22. The fixing bolt 25 is sequentially screwed into the first screw hole 23 and the second screw hole 24.

[0033] The tray 19 is semicircular. The two sets of trays 19 are connected by plugging their respective groove parts 22 and plug-in parts 21 into each other, and then reinforced by passing the fixing bolt 25 through them. Since a semicircular opening is formed on the tray 19, a first circular hole is formed after docking for the rotating shaft 12 to pass through. When separating the splicing part 18, only the fixing bolt 25 needs to be taken out, and then the splicing part 18 can be removed from both sides of the rotating shaft 12, which is convenient for the staff to disassemble and assemble. The tray 19 can be docked, installed and separated from both sides of the rotating shaft 12, avoiding the occurrence of limiting situations and improving the installation efficiency of the actuator 11.

[0034] Two sets of installation grooves 26 are opened on each set of splicing parts 18. The lifting cylinders 6 are fixed in the installation grooves 26. Four sets of lifting cylinders 6 are distributed in a rectangular shape on the lower side of the support plate 7. The four sets of lifting cylinders 6 move synchronously to adjust the height of the support plate 7 to keep the actuator 11 horizontal, so that the plug-in hole of the actuator 11 is coaxial with the axis of the rotating shaft 12, reducing collisions during the plugging process and reducing damage to the actuator 11 and the rotating shaft 12.

[0035] An adjustment groove 27 is opened on the splicing part 18. The adjustment groove 27 is strip-shaped. The adjustment bracket 28 is installed in the adjustment groove 27 through an adjustment bolt. A limit plate 29 is installed at the upper end of the adjustment bracket 28. The limit plate 29 is arc-shaped. The limit plate 29 is flush with the rotating plate 9 in height. The limit plates 29 are symmetrically installed on both sides of the rotating plate 9. The length direction of the adjustment groove 27 is perpendicular to the axis of symmetry between the limit plates 29.

[0036] The two side limiting plates 29 are arc-shaped. After the maintenance actuator 11 is completed, when the hook hoists the actuator 11 and moves downward, the rotating plate 9 will first enter the gap between the two sets of limiting plates 29 to achieve a guiding effect. The rotating disc on the actuator 11 is placed on the second guide rail 8 through the limiting plates 29, so that the second guiding groove 10 on the lower rotating disc of the actuator 11 is engaged with the second guide rail 8, which is convenient for the staff to dock. The guiding effect is achieved through the limiting plates 29. Since the adjusting groove 27 is strip-shaped, the adjusting bracket 28 can change its position, so that the distance between the limiting plates 29 can be adjusted to adapt to rotating plates 9 of different sizes, with higher versatility.

[0037] A sliding hole 30 is formed in the splicing part 18, and a limiting column 31 is installed on the supporting plate 7. The limiting column 31 is inserted into the sliding hole 30. The limiting column 31 moves with the supporting plate 7. A limiting part is installed at the end of the limiting column 31, and the limiting part abuts against the lower side of the supporting plate 7. By setting the limiting column 31, the supporting plate 7 can move along the axis of the limiting column 31. The limiting column 31 reciprocates in the sliding hole 30, and the supporting plate 7 can maintain a horizontal position during the movement. By setting the limiting part, it can be avoided that the supporting plate 7 moves too high and collides with the upper limiting plate 29, preventing damage to the parts.

[0038] The supporting plate 7 is rectangular, and four groups of flanges 32 are turned downward circumferentially on the supporting plate 7. First observation holes 33 are formed in three groups of flanges 32. The first observation holes 33 can observe the lifting condition of the lifting cylinder 6 inside the supporting plate 7. If there is a problem, the lifting cylinder 6 can be controlled to stop moving in time. A notch is formed in the last group of flanges 32, and a disassembly opening 35 is formed in the supporting plate 7. The disassembly opening 35 communicates with the notch. The rotating shaft 12 is inserted into the disassembly opening 35. Disassembly holes are formed on both sides of the notch. Disassembly bolts are installed on the disassembly plate 36, and the disassembly bolts are screwed into the disassembly holes. The disassembly plate 36 can increase the strength of the supporting plate 7 and prevent the supporting plate 7 from deforming during the leveling process of the lifting cylinder 6. The disassembly opening 35 and the notch are provided to facilitate the removal or insertion of the supporting plate 7 from one side of the rotating shaft 12, avoiding limitations during the disassembly or installation process.

[0039] Second guide rails 8 are respectively installed on both sides of the disassembly opening 35. Second rollers 37 are rotatably installed in the second guide rails 8. The axis of the second rollers 37 is perpendicular to the length direction of the second guide rails 8. The second rollers 37 abut against the top surface of the second guiding groove 10. By setting the second rollers 37, the resistance during the rotation of the rotating disc can be reduced, making the process of adjusting the actuator 11 more labor-saving and reducing the adjustment difficulty.

[0040] The rotating plate 9 includes two sets of docking members 38. A second observation hole 39 is provided on the side of the docking member 38. By providing the second observation hole 39, it is possible to observe whether the second roller 37 is inserted into the second guide groove 10, making the docking process visual and more accurate. The docking member 38 is semi-circular. A first fixing screw hole is provided on the docking member 38. The first mounting bolt 34 passes through the first fixing screw hole and is screwed onto the actuator 11. A semi-circular hole is also provided on the docking member 38 to facilitate the removal and installation of the docking member 38 from both sides of the rotating shaft, avoiding limit problems.

[0041] A second fixing screw hole is provided on the actuator 11, and a third fixing screw hole is provided on the containment vessel pipe 5. The first mounting bolt 34 is inserted into the second fixing screw hole and the third fixing screw hole. The first mounting bolt 34 passes through the second base 4 and is screwed into the third fixing screw hole. The first mounting bolt 34 can connect the actuator 11 and the containment vessel pipe 5. At the same time, the second base 4 can also be connected to the containment vessel pipe 5 through the first mounting bolt 34, reducing the number of bolt specifications and facilitating disassembly and assembly by workers.

[0042] The auxiliary calibration tool of the present utility model includes the following steps:

[0043] In the preparation stage, the two ends of the actuator 11 are synchronously lifted vertically upward by a certain distance through a lifting hook. At this time, the lifting member is installed on the containment vessel pipe 5 and fixed. Then, the position of the placement plate 2 is adjusted so that the placement plate 2 fits the arc surface of the actuator 11. The actuator 11 is moved downward and placed on the placement plate 2. Mark the relative position of the placement plate 2 and the first base 1 at this time. At this time, the actuator 11 has just been pulled out from the rotating shaft 12, and the relative position has not changed. Taking this as a reference, the key on the rotating shaft 12 can be inserted into the keyway in the insertion hole of the actuator 11. Then, the actuator 11 is taken out for maintenance.

[0044] After the overhaul is completed, first install the lifting member on the containment vessel pipe 5, connect the tray 19 and the containment vessel pipe 5 through the first mounting bolt 34, install the rotating plate 9 at the bottom of the actuator 11, and gradually move the actuator 11 downward through the lifting hook. At this time, raise the lifting cylinder 6, and the rotating plate 9 moves downward along the gap between the limiting plates 29. Finally, the second roller 37 is embedded in the second guide groove 10 at the bottom of the rotating plate 9, and the actuator is placed on the placing plate 2. Adjust the height of the supporting plate 7 through the lifting cylinder 6 to keep the actuator 11 horizontal, so that the actuator 11 at this time is respectively lapped on the rotating member and the lifting member. Remove the lifting hook, and manually rotate the actuator 11 for horizontal rotation to make the marks of the placing plate 2 and the first base 1 coincide again. At this time, the positions of the keyway and the key coincide with each other, and subsequently the actuator 11 can be directly inserted into the rotating shaft 12. Then tie the lifting hook to lift the actuator 11 vertically again, remove the rotating member, the lifting member and the rotating plate 9, insert the actuator 11 onto the rotating shaft 12 on the containment vessel pipe 5, and finally fix it through the first mounting bolt 34 to complete the overhaul.

[0045] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An auxiliary calibration tool, characterized in that, It includes a rotating member, a lifting member and a rotating plate (9). The rotating member includes a first base (1), a placing plate (2) and a first guide rail (3). The first guide rail (3) is arc-shaped. A first guide groove is formed on the lower side of the placing plate (2). The first guide rail (3) is inserted into the first guide groove. The placing plate (2) slides along the length direction of the first guide rail (3). The center of the first guide rail (3) coincides with the axis of the rotating shaft (12). The actuating mechanism (11) is placed on the placing plate (2). The lifting member includes a second base (4). The second base (4) is fixed on the containment vessel pipeline (5). A lifting cylinder (6) is installed on the second base (4). The lifting cylinder (6) pushes the supporting plate (7) to move along the axis of the rotating shaft (12). A second guide rail (8) is installed on the supporting plate (7). The second guide rail (8) is arc-shaped. The center of the second guide rail (8) coincides with the axis of the rotating shaft (12). A second guide groove (10) is formed on the lower side of the rotating plate (9). The second guide rail (8) is embedded in the second guide groove (10). The rotating plate (9) is installed on the lower side of the actuating mechanism (11). The rotating shaft (12) passes through the second base (4) and the supporting plate (7) in sequence. A lifting ring (13) is installed on the actuating mechanism (11). The hook is hooked in the lifting ring (13).

2. The auxiliary calibration tool according to claim 1, wherein, A first roller (14) is rotatably installed in the first guide rail (3). The axis of the first roller (14) is perpendicular to the length direction of the first guide rail (3). The first roller (14) abuts against the placing plate (2).

3. The auxiliary calibration tool according to claim 1, characterized in that, Arc-shaped grooves (15) are formed on both sides of the first guide rail (3). The arc-shaped grooves (15) are parallel to each other. Insertion plates (16) are formed by the downward extension of both sides of the placing plate (2). The insertion plates (16) are inserted into the arc-shaped grooves (15). Limit holes are formed under the first base (1) on the insertion plates (16). A limit bolt (17) is sequentially inserted into the limit holes of the two groups of insertion plates (16). A limit nut is screwed at the end of the limit bolt (17).

4. The auxiliary calibration tool according to claim 1, characterized in that, The second base (4) includes two sets of splicing parts (18). The splicing part (18) includes a tray (19) and a support leg (20). The two sets of support legs (20) are installed on the lower side of the tray (19). The tray (19) is semi-circular. A docking surface is formed on the tray (19). An insertion part (21) and a groove part (22) are formed on the docking surface. The splicing parts (18) are inserted into each other. The insertion part (21) is inserted into the groove part (22). A first screw hole (23) is formed on the insertion part (21). A second screw hole (24) is formed on the groove part (22). A fixing bolt (25) is sequentially screwed into the first screw hole (23) and the second screw hole (24).

5. The auxiliary calibration tool according to claim 4, wherein Two installation grooves (26) are formed on each set of splicing parts (18). The lifting cylinder (6) is fixed in the installation grooves (26).

6. The auxiliary calibration tool according to claim 4, wherein An adjustment groove (27) is formed in the splicing part (18). The adjustment groove (27) is strip-shaped. The adjustment bracket (28) is installed in the adjustment groove (27) through an adjustment bolt. A limit plate (29) is installed at the upper end of the adjustment bracket (28). The limit plate (29) is arc-shaped. The limit plate (29) is flush with the rotating plate (9) in height. The limit plates (29) are symmetrically installed on both sides of the rotating plate (9). The length direction of the adjustment groove (27) is perpendicular to the symmetry axis between the limit plates (29).

7. The auxiliary calibration tool according to claim 4, wherein A sliding hole (30) is formed in the splicing part (18). A limit post (31) is installed on the support plate (7). The limit post (31) is inserted into the sliding hole (30). The limit post (31) moves along with the support plate (7). A limit part is installed at the end of the limit post (31). The limit part abuts against the lower side of the support plate (7).

8. The auxiliary calibration tool according to claim 1, wherein The support plate (7) is rectangular. Four groups of flanges (32) are turned downwards circumferentially on the support plate (7). First observation holes (33) are formed in three groups of the flanges (32). A notch is formed in one group of the flanges (32). A disassembly opening (35) is formed in the support plate (7). The disassembly opening (35) communicates with the notch. The rotating shaft (12) passes through the disassembly opening (35). Disassembly holes are formed on both sides of the notch. Disassembly bolts are installed on a disassembly plate (36). The disassembly bolts are screwed into the disassembly holes.

9. The auxiliary calibration tool according to claim 8, characterized in that, Second guide rails (8) are respectively installed on both sides of the disassembly opening (35). Second rollers (37) are rotatably installed in the second guide rails (8). The axis of the second rollers (37) is perpendicular to the length direction of the second guide rails (8). The second rollers (37) abut against the top surface of the second guide grooves (10). The rotating plate (9) includes two docking parts (38). Second observation holes (39) are formed in the sides of the docking parts (38). The docking parts (38) are semi-circular. First fixing screw holes are formed in the docking parts (38). First mounting bolts (34) pass through the first fixing screw holes and are screwed onto the actuator (11).

10. The auxiliary calibration tool according to claim 9, characterized in that, Second fixing screw holes are formed in the actuator (11). Third fixing screw holes are formed in the safety shell pipeline (5). The first mounting bolts (34) are inserted into the second fixing screw holes and the third fixing screw holes. The first mounting bolts (34) pass through the second base (4) and are screwed into the third fixing screw holes.

Images