CN114558909B - Nuclear island ring crane corbel skirt deformation correction tool structure and correction method thereof - Google Patents
Nuclear island ring crane corbel skirt deformation correction tool structure and correction method thereof Download PDFInfo
- Publication number
- CN114558909B CN114558909B CN202210218788.8A CN202210218788A CN114558909B CN 114558909 B CN114558909 B CN 114558909B CN 202210218788 A CN202210218788 A CN 202210218788A CN 114558909 B CN114558909 B CN 114558909B
- Authority
- CN
- China
- Prior art keywords
- bracket
- plate
- skirt
- positioning
- correcting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/14—Straightening frame structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/14—Straightening frame structures
- B21D1/145—Clamps therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/16—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts of specific articles made from metal rods, tubes, or profiles, e.g. crankshafts, by specially adapted methods or means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A nuclear island ring-hung bracket skirt deformation correction tool structure and a correction method comprise a bracket piece to be corrected and connected to the inner wall of a nuclear island steel lining, a positioning assembly and a correction assembly, wherein the positioning assembly comprises a positioning horizontal plate and positioning corner pieces, the correction assembly is arranged on the two sides of the head and the tail of the bracket piece and on the outer sides of the two positioning corner pieces on the same side, the correction assembly comprises a positioning frame, a correction adjustable piece, a correction module and a buffer piece, the correction adjustable piece comprises an upper group of correction jacks and a lower group of correction jacks, the correction module comprises an upper convex module and a lower concave module, and the bracket skirt is inserted between the buffer piece and the upper convex module. The deformation of the skirt edge of the bracket of the nuclear island can be effectively corrected, so that the curvature of the skirt edge of the bracket is consistent with the radian of the steel lining, the bracket can be accurately positioned, the correction consistency of the bracket is ensured, the mounting precision of the bracket is ensured, meanwhile, the tool is fixedly connected by the pin shaft, the bracket can be flexibly assembled and disassembled, the universality is strong, the occupied area is small, and the bracket can be repeatedly used.
Description
Technical Field
The invention belongs to the field of correction of nuclear island ring crane construction, and particularly relates to a frock structure and a method for correcting deformation of a bracket skirt edge of a nuclear island ring crane.
Background
A nuclear island circular crane is a circular bridge crane for a nuclear power station, which is a special heavy bridge crane for providing lifting service for installation and maintenance of heavy equipment in a reactor factory building and reactor refueling in the construction and operation stages of the nuclear power station, and is used for lifting equipment in a nuclear island such as a main evaporator, a reactor pressure vessel and the like. Meanwhile, during the operation of the nuclear power station, the lifting device is used for lifting fuel and maintenance equipment which are periodically replaced, and large vehicle wheels of the lifting device run along the track on the upper part of the annular ostrich seat. The ring crane bracket is a key part for supporting the ring crane of the nuclear island, the whole ring crane bracket belongs to a box-type welded structure, the nuclear safety level is grade, the quality assurance level is QA, the requirement on the manufacturing precision of components is high, and the manufacturing process is finished in a prefabricating workshop.
The bracket skirt is a key part for butt welding of the bracket and the nuclear island cylinder wall plate. Because the inner wall of the nuclear island steel lining is arc-shaped, after the bracket is welded, the curvature and the size precision of the skirt edge are directly related to the assembly quality of the bracket and the cylinder body.
The bracket is required to be manufactured by manual electric arc welding, most welding seams are full penetration welding joints, the heat input quantity is large, the welding deformation is large, and the skirt edge generates a great amount of wave deformation in the welding process of the bracket, so that the skirt edge is corrected after the welding is finished, the mounting precision is met, and the bracket is very important for mounting the bracket. Because the nuclear power bracket does not allow flame correction, the bracket can be rapidly cooled after hydrogen elimination is finished, and aiming at correction of the skirt edge of the nuclear island bracket, the currently adopted tool is a movable tool, although the temperature of the skirt edge after hydrogen elimination is ensured, the currently adopted tool is difficult to ensure that the skirt edge is successfully corrected once, namely the currently adopted tool needs to repeatedly correct the skirt edge for multiple times, and the skirt edge can meet the requirement.
Disclosure of Invention
The invention aims to provide a nuclear island ring crane corbel skirt deformation correction tool structure and a correction method, and aims to solve the technical problems that after wave deformation is generated on the skirt of the existing ring crane corbel, the existing tool is difficult to correct in place at one time, so that the repeated correction efficiency is low, the operation requirement is high, the construction progress is influenced, and the manufacturing precision and the installation precision of the nuclear island corbel cannot be guaranteed.
In order to achieve the purpose, the invention adopts the following technical scheme:
a nuclear island ring-hung corbel skirt deformation correction tool structure comprises a corbel piece, a positioning assembly and a correction assembly to be corrected and connected to the inner wall of a nuclear island steel lining, wherein the corbel piece comprises a box-shaped component and a back plate component, the back plate component comprises a bottom plate and a stiffening plate fixedly connected to the back of the bottom plate, the stiffening plate protrudes out of the back surface of the bottom plate and is perpendicular to the bottom plate, the edges of the head and the tail of the bottom plate correspondingly exceed the edges of the head and the tail of the stiffening plate and form two corbel skirt edges respectively, the inner wall of the nuclear island steel lining is a cambered surface, the other parts of the corbel skirt edge relative to the bottom plate are in an arc shape, and the arc-shaped bending radian of the corbel skirt edge is the same as the cambered surface bending radian of the inner wall of the nuclear island steel lining,
the positioning component comprises a positioning horizontal plate and positioning corner pieces, the positioning horizontal plate is placed on a plane, the positioning corner pieces are four in number, the bottom side of each positioning corner piece is fixedly connected to the top side of the corresponding positioning horizontal plate, the four positioning corner pieces are identical in height and flush in the top side surface, the height of each positioning corner piece is not smaller than the thickness of the thickest position of each stiffening group plate, the back plate part of each bracket piece is horizontally placed towards the lower side and is located above the corresponding positioning horizontal plate, the back side of the bottom plate is placed on the top side of each positioning corner piece, the four positioning corner pieces are respectively arranged at the four corners of each bracket piece and are connected with the four corners of the corresponding clamping limiting stiffening group plates, and the two positioning corner pieces on the same side of each bracket extend towards the outer side,
the two groups of the correcting components are respectively and symmetrically arranged at the head and the tail sides of the bracket component and the outer sides of the two positioning angle components at the same side, each group of the correcting components comprises a positioning frame, a correcting adjustable component, a correcting module and a buffer component,
the positioning frame is a door-shaped frame and comprises two vertical supporting columns and a horizontal supporting beam, the bottoms of the vertical supporting columns are detachably connected with the positioning horizontal plate, the vertical supporting columns are respectively arranged at two sides of the skirt edge of the bracket, two ends of the horizontal supporting beam are respectively fixedly connected with the tops of the vertical supporting columns, the length of the horizontal supporting beam is greater than the width of the skirt edge of the bracket and is positioned above the skirt edge of the bracket,
the correcting adjustable parts comprise two groups of upper correcting jacks and lower correcting jacks, the upper correcting jacks and the lower correcting jacks are the same in number and are arranged along the length direction of the horizontal supporting beam in a vertically opposite mode,
the correcting module comprises two modules which are matched for use, namely an upper convex module and a lower concave module, wherein the top side surface of the upper convex module is horizontal, the bottom side surface of the upper convex module is provided with an arc convex surface facing the bottom side, the convex bending radian is the same as the arc bending radian of the inner wall of the nuclear island steel lining, the bottom side surface of the lower concave module is horizontal, the top side surface of the lower concave module is provided with an arc concave surface facing the top side, the concave bending radian is the same as the arc bending radian of the inner wall of the nuclear island steel lining,
the upper group of the correcting jacks are positioned between the upper convex module and the horizontal supporting beam, the bottoms of the upper group of the correcting jacks are arranged on the top side of the upper convex module, the tops of the upper group of the correcting jacks are supported on the bottom side surface of the horizontal supporting beam, the lower group of the correcting jacks are positioned between the lower concave module and the positioning horizontal plate, the bottoms of the lower group of the correcting jacks are arranged on the top side of the positioning horizontal plate, and the tops of the lower group of the correcting jacks are supported on the bottom side surface of the lower concave module,
the cushioning member has a length equal to the lower female module and is located on the top side of the lower female module, and the leg skirt is interposed between the cushioning member and the upper male module.
Two positioning lug plates are arranged on the front side and the rear side of each vertical supporting column in a clamping mode, lug plate pin holes are formed in the positioning lug plates, corresponding pin holes are formed in the bottoms of the vertical supporting columns, the four pin holes are located in the same plane, and the lug plate pin holes and the pin holes are aligned and connected through pin shafts.
Vertical support column is T type component, including post diaphragm and post riser, the post diaphragm is inboard, and the post riser is towards the outside, the bottom at the post riser is seted up to the post pin hole, the otic placode clamp is established both sides around the post riser.
The horizontal support beam is a T-shaped component and comprises a beam transverse plate and a beam vertical plate, wherein the beam vertical plate is located at the top side, the beam transverse plate is located at the bottom side, the beam transverse plate and the column vertical plate are aligned in the middle and located in the same vertical plane, and the width of the beam transverse plate is equal to that of the column transverse plate.
The top side supports of the upper group of correction jacks are arranged in the middle of the bottom side of the beam transverse plate and arranged in rows along the length direction of the beam transverse plate.
The upper convex module is a strip plate arranged perpendicular to the horizontal plate, and two ends of the upper convex module are respectively provided with a grabbing upper handle. The concave module is a strip plate arranged perpendicular to the horizontal plate, and two ends of the concave module are respectively provided with a grabbing and taking-off handle.
The positioning corner fitting is horizontally arranged, the opening faces inwards, and two corner limbs of the positioning corner fitting tightly push two vertical surfaces at the corner of the stiffening group plate.
The buffer piece is a horizontally arranged strip-shaped arc plate, and the bending radian of the arc plate is the same as that of the arc surface of the inner wall of the nuclear island steel lining.
A correction method of a nuclear island ring crane corbel skirt deformation correction tool structure comprises the following correction steps:
step one, assembling the positioning assembly, keeping the bracket piece after hydrogen elimination at the temperature of hydrogen elimination, immediately horizontally hoisting the bracket piece to the position of the positioning angle piece of the positioning assembly, and adjusting the bracket piece to enable the vertical projection of the stiffening assembly plate to be coincident with the position of the positioning angle piece on the support plate and to be placed on the horizontal positioning plate; then, the bracket piece is lowered down to enable the positioning corner pieces to be tightly propped against four corners of the stiffening group plate;
step two, respectively placing the two connected positioning frames on the head and the tail sides of the bracket part and the skirt edge of the bracket, aligning the lug plate pin holes and the pin holes and realizing hinge connection through a pin shaft, wherein the pin shaft cannot move;
placing the upper convex module on the upper surface of the corbel skirt, then placing the upper group of correction jacks between the horizontal support beam and the upper convex module, and adjusting the upper group of correction jacks to enable the upper convex module and the upper surface of the corbel skirt to be tightly jacked;
placing the lower group of correction jacks and the concave module on the lower surface of the corbel skirt, wherein the concave module is positioned on the top side of the lower group of correction jacks, and a gap is reserved between the concave module and the lower surface of the corbel skirt;
inserting the buffer part into a gap between the lower surface of the lower concave module and the lower surface of the bracket skirt edge, adjusting the upper group of correction jacks and the lower group of correction jacks to enable gaps between the upper convex module and the upper surface of the bracket skirt edge, between the lower concave module and the buffer part and between the buffer part and the lower surface of the bracket skirt edge to be zero, and detecting through a feeler gauge on the basis that the feeler gauge cannot be inserted into the gaps;
and step six, preserving the heat of the skirt edge of the bracket for minutes, disassembling the positioning assembly and the correcting assembly after the skirt edge of the bracket is naturally air-cooled to room temperature, and then checking whether the curvature of the skirt edge of the bracket meets the requirement by using a check plate.
In step six, the inspection board is prefabricated arc board, and the radian of this plate body is the same with the curved arc radian of the cambered surface of nuclear island steel lining inner wall, the inspection board includes radian board and handle hole, and the bottom surface of radian board is the same with the curved arc of the cambered surface of nuclear island steel lining inner wall for the cambered surface, the handle hole is located the middle part of radian board, during the use hand inserts the handle hole, then carries the inspection board, is close to the bracket shirt rim downwards afterwards for the radian coincide between the top side of the bottom surface laminating bracket shirt rim of radian board, and clearance is not more than 1mm with the clearance gauge everywhere between the two.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
the correction tool designed by the invention realizes the deformation correction of the skirt edge of the bracket of the nuclear island ring crane through the correction tool. The nuclear power corbel cooling tool can effectively correct deformation, particularly wave deformation, of the skirt edge of a corbel of a nuclear island, and can be quickly cooled after the corbel is completely dehydrogenated because the nuclear power corbel is not allowed to be corrected by flame.
The deformation of the skirt edge can be effectively corrected, the curvature of the skirt edge of the bracket is consistent with the radian of the steel lining, the bracket can be accurately positioned, the correction consistency of the bracket is ensured, the mounting precision of the bracket is ensured, meanwhile, the tool is fixedly connected by the pin shaft, the assembly and disassembly can be flexibly carried out, the universality is strong, the occupied area is small, the tool can be repeatedly used, in addition, the positioning frame in the tool can also be used as an anti-deformation tool for the bracket in the welding process of the bracket, the manufacturing of the bracket is facilitated, and the material for manufacturing the bracket is saved.
According to the corbel correction method, the corbels are fixed through the set correction tool, so that the corbels can be accurately positioned and the consistency of corbel correction can be ensured, meanwhile, the corbel correction is qualified at one time, the operation is simple, the working efficiency is improved, and the cost is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic bottom view of the calf-piece of the present invention.
Fig. 2 is a schematic top view of the calf shank of the present invention.
FIG. 3 is a schematic view of the positioning assembly of the first construction step of the present invention.
Fig. 4 is a schematic view of the lower leg unit in the first construction step of the present invention.
FIG. 5 is a schematic diagram of the bracket member being lowered and then limited by the positioning corner member in the first construction step of the present invention.
Fig. 6 is another perspective view of fig. 5.
Fig. 7 is another angular side view schematic of fig. 5.
Fig. 8 is another schematic angular rear view of fig. 5.
FIG. 9 is a schematic structural diagram of a positioning frame according to the present invention.
FIG. 10 is a schematic view showing the completion of the installation of the positioning frame in the second construction step of the present invention.
Fig. 11 is a schematic diagram of the installation completion of the upper group of the straightening jacks and the upper convex module in the third construction step.
Fig. 12 is another angular side view schematic of fig. 11.
FIG. 13 is a schematic view showing the completion of the installation of the lower set of straightening jacks and the lower concave module in the fourth construction step of the present invention.
Fig. 14 is another angular side view schematic of fig. 13.
Fig. 15 is a schematic view of the nuclear island ring crane corbel skirt deformation correction tool structure and the completion of installing the buffer and adjusting the jack in the fifth construction step.
Fig. 16 is another angular side view schematic of fig. 15.
Fig. 17 is a schematic view of fig. 15 with only the backplane retained.
Fig. 18 is another angular side view schematic of fig. 17.
FIG. 19 is a schematic view of the structure of the inspection board of the present invention.
Reference numerals: 1-bracket part, 11-box part, 12-bottom plate, 13-stiffening group plate, 14-bracket skirt, 2-positioning component, 21-positioning horizontal plate, 22-positioning corner part, 23-positioning ear plate, 231-ear plate pinning hole, 3-correction component, 31-vertical supporting column, 311-column transverse plate, 312-column vertical plate, 313-column pinning hole, 32-horizontal supporting beam, 321-beam transverse plate, 322-beam vertical plate, 33-upper group correction jack, 34-lower group correction jack, 35-upper convex module, 351-grabbing upper handle, 352-arc convex surface, 36-lower concave module, 361-grabbing lower handle, 362-arc concave surface, 37-buffer part, 4-pin shaft, 5-inspection plate, 51-arc plate and 52-operation hole.
Detailed Description
Embodiment referring to fig. 15, a nuclear island ring crane corbel skirt deformation correction tool structure comprises a corbel piece 1 to be corrected and connected to the inner wall of a nuclear island steel lining, a positioning assembly 2 and a correction assembly 3.
Referring to fig. 1-2, the leg unit 1 includes a box-shaped member 11 and a back plate member, the back plate member includes a bottom plate 12 and a stiffener plate 13 fixedly attached to a back of the bottom plate 12, and the stiffener plate 13 protrudes from a back surface of the bottom plate 12 and is perpendicular to the bottom plate 12.
The edge correspondence of the head of bottom plate 12 and afterbody surpasss the head of stiffening group board 13 and the edge of afterbody to form twice bracket shirt rim 14 respectively, nuclear island steel lining inner wall is the cambered surface, the other parts of the relative bottom plate 12 of bracket shirt rim 14 are the arc, the curved radian of the arc of bracket shirt rim 14 is the same with the curved radian of the cambered surface of nuclear island steel lining inner wall.
Referring to fig. 3-8, the positioning assembly 2 includes four positioning horizontal plates 21 and four positioning corner pieces 22, the positioning horizontal plates 21 are placed on a plane, the bottom sides of the positioning corner pieces 22 are fixedly connected to the top sides of the positioning horizontal plates 21, the four positioning corner pieces 22 are equal in height and flush in top surface, the height of the positioning corner pieces 22 is not less than the thickness of the thickest position of the stiffening group plate 13, the back plate part of the bracket 1 is placed horizontally and above the positioning horizontal plates 21, the back side of the bottom plate 12 is placed on the top sides of the positioning corner pieces 22, the four positioning corner pieces 22 are respectively arranged at the four corners of the bracket 1 and clamped with the four corners of the limiting stiffening group plate 13, the positioning corner pieces 22 are horizontally arranged and have openings facing inwards, and the two corners of the positioning corner pieces 22 abut against two vertical planes of the corners of the stiffening group plate 13.
Each corbel skirt 14 extends outwardly relative to the two locating corner fittings 22 on the same side.
Referring to fig. 15, the two sets of straightening assemblies 3 are respectively and symmetrically arranged at the head and the tail sides of the calf part 1 and at the outer sides of the two positioning angle parts 22 at the same side, and each set of straightening assembly 3 comprises a positioning frame, a straightening adjustable part, a straightening module and a buffer part 37.
Referring to fig. 9-10, the positioning frame is a door-shaped frame, and includes two vertical supporting columns 31 and a horizontal supporting beam 32, the bottom of the vertical supporting column 31 is detachably connected with the positioning horizontal plate 21, the vertical supporting columns 31 are respectively arranged on two sides of the corbel skirt 14, two ends of the horizontal supporting beam 32 are respectively fixedly connected with the top of the vertical supporting column 31, and the length of the horizontal supporting beam 32 is greater than the width of the corbel skirt 14 and is located above the corbel skirt 14.
Two positioning lug plates 23 are clamped on the front side and the rear side of each vertical supporting column 31, lug plate pin holes 231 are formed in the positioning lug plates 23, corresponding pin holes 313 are formed in the bottom of each vertical supporting column 31, the four pin holes 313 are located in the same plane, and the lug plate pin holes 231 and the pin holes 313 are aligned and connected through pin shafts 4.
Referring to fig. 11 to 18, the correcting adjustable member includes two groups, which are an upper group of correcting jacks 33 and a lower group of correcting jacks 34, and the upper group of correcting jacks 33 and the lower group of correcting jacks 34 are the same in number and are arranged opposite to each other up and down along the length direction of the horizontal supporting beam 32. The top side abutments of the upper set of leveling jacks 33 are centered on the bottom side of the beam cross plate 321 and arranged in rows along the length of the beam cross plate 321. In this embodiment, the upper set of straightening jacks 33 and the lower set of straightening jacks 34 are three in number.
The correcting module comprises two modules which are matched with each other for use, namely an upper convex module 35 and a lower concave module 36, wherein the top side surface of the upper convex module 35 is horizontal, the bottom side surface is provided with an arc convex surface 352 facing the bottom side, the convex bending radian is the same as the arc bending radian of the inner wall of the nuclear island steel lining, the bottom side surface of the lower concave module 36 is horizontal, the top side surface is provided with an arc concave surface 362 facing the top side, and the concave bending radian is the same as the arc bending radian of the inner wall of the nuclear island steel lining.
The upper group of the correcting jacks 33 are positioned between the upper convex module 35 and the horizontal supporting beam 32, the bottoms of the upper group of the correcting jacks 33 are placed on the top side of the upper convex module 35, the tops of the upper group of the correcting jacks 33 are supported on the bottom side surface of the horizontal supporting beam 32, the lower group of the correcting jacks 34 are positioned between the lower concave module 36 and the positioning horizontal plate 21, the bottoms of the lower group of the correcting jacks 34 are placed on the top side of the positioning horizontal plate 21, and the tops of the lower group of the correcting jacks 34 are supported on the bottom side surface of the lower concave module 36.
The upper male mold member 35 is a strip member disposed vertically and horizontally, and has upper grasping handles 351 at both ends thereof, and the lower female mold member 36 is a strip member disposed vertically and horizontally, and has lower grasping handles 361 at both ends thereof. The grabbing handle is used for ensuring the stability of the correcting module when the jack is adjusted.
The cushion member 37 has a length equal to that of the lower female module 36 and is located on the top side of the lower female module 36, and the leg skirt 14 is interposed between the cushion member 37 and the upper male module 35. The buffer piece 37 is a horizontally arranged strip-shaped arc plate, the bending radian of the arc plate is the same as that of the arc surface of the inner wall of the steel lining of the nuclear island, and the horizontal width of the buffer plate is larger than the thickness of the concave module and is made of Q235B steel. The buffer piece is used for preventing the skirt edge from being stressed too much in the correction process, so that the concave module is pressed into the skirt edge, and the skirt edge of the bracket is partially damaged.
Referring to fig. 19, in this embodiment, the inspection plate and the correction mold can be made into standard parts with different curvatures to adapt to the corbel skirts with different curvatures for correction.
The correction method of the nuclear island ring crane corbel skirt deformation correction tool structure comprises the following correction steps:
step one, as shown in fig. 3-8, after the positioning assembly 2 is assembled, the bottom plate needs to be leveled by a level instrument, and the positioning corner fittings are welded with the horizontal plate. Then keeping the temperature of the bracket piece 1 after the completion of the dehydrogenation at the dehydrogenation time, immediately horizontally hoisting the bracket piece 1 to the position of the positioning angle piece 22 of the positioning assembly 2, and adjusting the bracket piece 1 to ensure that the vertical projection of the stiffening group plate 13 is coincided with the position of the positioning angle piece 22 on the support plate and is placed on the horizontal positioning plate 21; the leg unit 1 is then lowered so that the positioning corner pieces 22 abut against the four corners of the stiffener plate 13.
Step two, referring to fig. 9-10, two connected positioning frames are respectively placed at the head and tail sides of the bracket 1 and the position of the bracket skirt 14, the lug plate pin hole 231 and the column pin hole 313 are aligned and hinged by the pin 4, and at this time, the pin 4 cannot move.
Step three, as shown in fig. 11 to 12, the upper convex mold 35 is placed on the upper surface of the corbel skirt 14, then the upper group of straightening jacks 33 are placed between the horizontal support beams 32 and the upper convex mold 35, and the upper group of straightening jacks 33 are adjusted to enable the upper convex mold 35 and the upper surface of the corbel skirt 14 to be tightly propped.
Step four, referring to fig. 13-14, the lower set of straightening jacks and the recessed module 36 are placed on the lower surface of the leg skirt 14, wherein the recessed module 36 is located on the top side of the lower set of straightening jacks, and the recessed module 36 is now spaced from the lower surface of the leg skirt 14.
Step five, referring to fig. 15 to 18, inserting the buffer member 37 into the gap between the lower concave module 36 and the lower surface of the corbel skirt 14, adjusting the upper group of correction jacks 33 and the lower group of correction jacks to ensure that the gaps between the upper convex module 35 and the upper surface of the corbel skirt 14, between the lower concave module 36 and the buffer member 37, and between the buffer member 37 and the lower surface of the corbel skirt 14 are all zero, and detecting by using a feeler gauge, so as to take the condition that the feeler gauge cannot be inserted into the gaps.
And sixthly, preserving the heat of the corbel skirt 14 for 20 minutes, detaching the positioning assembly 2 and the correcting assembly 3 after the corbel skirt 14 is naturally cooled to room temperature in the air, and then checking whether the curvature of the corbel skirt 14 meets the requirement by using a check plate. In the sixth step, the inspection board 5 is prefabricated arc board, and the radian of this plate body is the same with the curved radian of cambered surface of nuclear island steel lining inner wall, the inspection board includes radian board 51 and handle hole 52, and the bottom surface of radian board is the cambered surface curved radian of cambered surface and nuclear island steel lining inner wall the same, the handle hole is located the middle part of radian board, during the use hand inserts in the handle hole 52, then carries the inspection board, is close to bracket shirt rim 14 downwards afterwards for the radian coincide between the top side of the bottom surface laminating bracket shirt rim 14 of radian board, and everywhere clearance between the two is no longer than 1mm with the clearance gauge measurement clearance.
Claims (6)
1. The utility model provides a frock structure is corrected in deformation of nuclear island ring crane bracket shirt rim which characterized in that: the correcting device comprises a bracket part (1) to be corrected and connected to the inner wall of a nuclear island steel lining, a positioning assembly (2) and a correcting assembly (3), wherein the bracket part (1) comprises a box part (11) and a back plate part, the back plate part comprises a bottom plate (12) and a stiffening plate (13) fixedly connected to the back of the bottom plate (12), the stiffening plate (13) protrudes out of the back surface of the bottom plate (12) and is perpendicular to the bottom plate (12), the edges of the head and the tail of the bottom plate (12) correspondingly exceed the edges of the head and the tail of the stiffening plate (13) and respectively form two bracket skirts (14), the inner wall of the nuclear island steel lining is an arc surface, the other parts of the bracket skirts (14) relative to the bottom plate (12) are arc-shaped, and the arc-shaped bending radian of the bracket skirts (14) is the same as the arc-shaped curvature of the inner wall of the nuclear island steel lining,
the locating component (2) comprises locating horizontal plates (21) and locating angle pieces (22), the locating horizontal plates (21) are placed on a plane, the locating angle pieces (22) are four in number, the bottom sides of the locating angle pieces (22) are fixedly connected to the top sides of the locating horizontal plates (21), the heights of the four locating angle pieces (22) are the same, the top side surfaces of the four locating angle pieces are flush, the heights of the locating angle pieces (22) are not smaller than the thickness of the thickest position of the stiffening group plate (13), the back plate part of the bracket piece (1) is horizontally placed towards the lower side and is located above the locating horizontal plates (21), the back side of the bottom plate (12) is placed on the top sides of the locating angle pieces (22), the four locating angle pieces (22) are respectively arranged at the four corners of the bracket piece (1), the four corner positions of the clamping limiting stiffening group plate (13), and two locating angle pieces (22) on the same side of each bracket (14) extend towards the outer side,
the two groups of the correcting components (3) are respectively and symmetrically arranged at the head and the tail of the bracket piece (1) and at the outer sides of the two positioning angle pieces (22) at the same side, each group of the correcting components (3) comprises a positioning frame, a correcting adjustable piece, a correcting module and a buffer piece (37),
the positioning frame is a door-shaped frame and comprises two vertical supporting columns (31) and a horizontal supporting beam (32), the bottom of each vertical supporting column (31) is detachably connected with the positioning horizontal plate (21), the vertical supporting columns (31) are respectively arranged on two sides of the bracket skirt edge (14), two ends of the horizontal supporting beam (32) are respectively fixedly connected with the tops of the vertical supporting columns (31), the length of the horizontal supporting beam (32) is greater than the width of the bracket skirt edge (14) and is positioned above the bracket skirt edge (14),
the correcting adjustable parts comprise two groups which are respectively an upper group of correcting jacks (33) and a lower group of correcting jacks (34), the number of the upper group of correcting jacks (33) and the number of the lower group of correcting jacks (34) are the same, and the upper group of correcting jacks and the lower group of correcting jacks are arranged along the length direction of the horizontal supporting beam (32) in a vertically opposite mode,
the correcting module comprises two modules which are matched with each other for use, namely an upper convex module (35) and a lower concave module (36), wherein the top side surface of the upper convex module (35) is horizontal, the bottom side surface is provided with an arc convex surface (352) towards the bottom side, the curvature of the convex arc is the same as that of the arc surface of the inner wall of the nuclear island steel lining, the bottom side surface of the lower concave module (36) is horizontal, the top side surface is provided with an arc concave surface (362) towards the top side, and the curvature of the concave arc is the same as that of the arc surface of the inner wall of the nuclear island steel lining,
the upper group of the correcting jacks (33) are positioned between the upper convex module (35) and the horizontal supporting beam (32), the bottoms of the upper group of the correcting jacks (33) are placed on the top side of the upper convex module (35), the tops of the upper group of the correcting jacks (33) are supported on the bottom side surface of the horizontal supporting beam (32), the lower group of the correcting jacks (34) are positioned between the lower concave module (36) and the positioning horizontal plate (21), the bottoms of the lower group of the correcting jacks (34) are placed on the top side of the positioning horizontal plate (21), and the tops of the lower group of the correcting jacks (34) are supported on the bottom side surface of the lower concave module (36),
said cushioning element (37) having a length equal to that of the lower female module (36) and being located on the top side of the lower female module (36), said leg skirt (14) being interposed between the cushioning element (37) and the upper male module (35),
two positioning ear plates (23) are clamped at the front side and the rear side of each vertical supporting column (31), ear plate pinning holes (231) are formed in the positioning ear plates (23), corresponding column pinning holes (313) are formed in the bottoms of the vertical supporting columns (31), the centers of the four column pinning holes (313) are located in the same plane, the ear plate pinning holes (231) and the column pinning holes (313) are aligned and connected through pin shafts (4),
the vertical supporting column (31) is a T-shaped component and comprises a column transverse plate (311) and a column vertical plate (312), the column transverse plate (311) faces to the inner side, the column vertical plate (312) faces to the outer side, the column pin connecting hole (313) is formed in the bottom of the column vertical plate (312), the ear plates are clamped on the front side and the rear side of the column vertical plate (312),
horizontal support beam (32) are T type component, including roof beam diaphragm (321) and roof beam riser (322), roof beam riser (322) are located the top side, and roof beam diaphragm (321) are located the bottom side, and roof beam diaphragm (321) align between two parties with column riser (312), are located same vertical plane, the width of roof beam diaphragm (321) equals the width of column diaphragm (311).
2. The nuclear island ring crane corbel skirt deformation correcting tool structure according to claim 1, characterized in that: the top side supports of the upper group of straightening jacks (33) are centered on the bottom side of the beam transverse plate (321) and arranged in rows along the length direction of the beam transverse plate (321).
3. The nuclear island ring crane corbel skirt deformation correcting tool structure according to claim 2, characterized in that: the upper convex module (35) is a strip plate arranged vertical to the horizontal plate, the two ends of the upper convex module are respectively provided with a grabbing upper handle (351), the lower concave module (36) is a strip plate arranged vertical to the horizontal plate, and the two ends of the lower concave module are respectively provided with a grabbing lower handle (361).
4. The nuclear island ring crane corbel skirt deformation correcting tool structure according to claim 2 or 3, characterized in that: the positioning corner fittings (22) are horizontally arranged, the openings of the positioning corner fittings face the inside, and two corner limbs of the positioning corner fittings (22) tightly support two vertical surfaces of the corner of the stiffening group plate (13).
5. The nuclear island ring crane corbel skirt deformation correcting tool structure according to claim 4, characterized in that: the buffer piece (37) is a horizontally arranged strip-shaped arc plate, and the bending radian of the arc plate is the same as that of the arc surface of the inner wall of the nuclear island steel lining.
6. The method for correcting the deformation of the nuclear island ring crane corbel skirt by using the tool structure of claim 5 is characterized by comprising the following correction steps:
step one, assembling the positioning assembly (2), then keeping the temperature of the bracket piece (1) subjected to dehydrogenation at the time of dehydrogenation, immediately horizontally hoisting the bracket piece to the position of a positioning corner piece (22) of the positioning assembly (2), and adjusting the bracket piece (1) to ensure that the vertical projection of a stiffening assembly plate (13) is superposed with the position of the positioning corner piece (22) on the support plate and is placed on a positioning horizontal plate (21); then, the bracket piece (1) is put down so that the positioning corner piece (22) is tightly propped against four corners of the stiffening group plate (13);
step two, respectively placing the two connected positioning frames on the head and the tail sides of the bracket piece (1) and the position of a bracket skirt (14), aligning the lug plate pin holes (231) and the column pin holes (313) and realizing hinge connection through the pin shaft (4), wherein the pin shaft (4) cannot move;
thirdly, placing the upper convex module (35) on the upper surface of the corbel skirt (14), then placing an upper group of correction jacks (33) between the horizontal support beam (32) and the upper convex module (35), and adjusting the upper group of correction jacks (33) to enable the upper convex module (35) and the upper surface of the corbel skirt (14) to be tightly propped;
placing the lower group of the correcting jacks and the concave module (36) on the lower surface of the corbel skirt (14), wherein the concave module (36) is positioned on the top side of the lower group of the correcting jacks, and a gap is reserved between the concave module (36) and the lower surface of the corbel skirt (14);
inserting the buffer member (37) into a gap between the lower surface of the lower concave module (36) and the lower surface of the bracket skirt (14), adjusting an upper group of correction jacks (33) and a lower group of correction jacks to enable gaps between the upper convex module (35) and the upper surface of the bracket skirt (14), between the lower concave module (36) and the buffer member (37) and between the buffer member (37) and the lower surface of the bracket skirt (14) to be zero, and detecting through a feeler gauge on the basis that the feeler gauge cannot be inserted into the gaps;
step six, preserving the heat of the corbel skirt (14) for 20 minutes, detaching the positioning assembly (2) and the correcting assembly (3) after the corbel skirt (14) is naturally air-cooled to room temperature, and then checking whether the curvature of the corbel skirt (14) meets the requirement or not by using a check plate
In step six, the inspection board (5) is prefabricated arc board, and the radian of this prefabricated arc board plate body is the same with the crooked radian of cambered surface of nuclear island steel lining inner wall, the inspection board includes radian board (51) and handle hole (52), and the bottom side of radian board is the cambered surface and is the same with the crooked radian of cambered surface of nuclear island steel lining inner wall, the handle hole is located the middle part of radian board, and during the use hand inserts in handle hole (52), then carries up the inspection board, is close to bracket shirt rim (14) downwards afterwards for the radian coincide between the top side of the bottom side laminating bracket shirt rim (14) of radian board, and everywhere clearance between the two is no longer than 1mm with the clearance gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210218788.8A CN114558909B (en) | 2022-03-08 | 2022-03-08 | Nuclear island ring crane corbel skirt deformation correction tool structure and correction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210218788.8A CN114558909B (en) | 2022-03-08 | 2022-03-08 | Nuclear island ring crane corbel skirt deformation correction tool structure and correction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114558909A CN114558909A (en) | 2022-05-31 |
| CN114558909B true CN114558909B (en) | 2023-01-03 |
Family
ID=81718105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210218788.8A Active CN114558909B (en) | 2022-03-08 | 2022-03-08 | Nuclear island ring crane corbel skirt deformation correction tool structure and correction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114558909B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200957433Y (en) * | 2006-08-08 | 2007-10-10 | 邯郸钢铁股份有限公司 | Flattener for correcting disk shear deformation |
| CN102815603B (en) * | 2012-08-20 | 2014-10-01 | 中国核工业华兴建设有限公司 | Nuclear power plant ring crane corbel and manufacturing method thereof |
| CN206966365U (en) * | 2017-06-14 | 2018-02-06 | 上海樊恒金属制品有限公司 | A kind of vehicle dormer window class part resilience adjusting apparatus |
| CN210847775U (en) * | 2019-09-16 | 2020-06-26 | 中国水电四局（兰州）机械装备有限公司 | Arc-shaped steel lining forming device |
| CN210966437U (en) * | 2019-10-24 | 2020-07-10 | 宁夏维尔铸造有限责任公司 | Large-scale portable regulation formula cast aluminium flat plate part correcting unit |
| CN212018997U (en) * | 2020-03-13 | 2020-11-27 | 上海外高桥造船有限公司 | Steel pipe correcting device |
| CN212944752U (en) * | 2020-08-03 | 2021-04-13 | 无锡万里实业集团有限公司 | Box pressure shaping tool |
| CN111922127A (en) * | 2020-08-13 | 2020-11-13 | 中车长春轨道客车股份有限公司 | Bogie side beam flame adjusting and repairing auxiliary device |
| CN213613426U (en) * | 2020-09-16 | 2021-07-06 | 十堰翊鹏工贸有限公司 | Car roof cargo frame correcting device |
| CN112157143A (en) * | 2020-10-10 | 2021-01-01 | 常州伟泰科技股份有限公司 | Gantry type correction equipment for frame workpiece |
-
2022
- 2022-03-08 CN CN202210218788.8A patent/CN114558909B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114558909A (en) | 2022-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103753099B (en) | A kind of device for thin-wall titanium alloy part hot school shape | |
| CN101988146B (en) | Creep age forming method of integral wing panel | |
| CN113148058B (en) | Process for installing and positioning double rudder sleeve and tail casting in stage of sectional construction | |
| CN114558909B (en) | Nuclear island ring crane corbel skirt deformation correction tool structure and correction method thereof | |
| CN217018035U (en) | Steel construction wave deformation correction structure | |
| CN209163490U (en) | Big section distorts steel box-girder assembling jig frame | |
| CN108581327B (en) | Welding tool for rear support of engine and application method of welding tool | |
| CN115764116B (en) | Production process of full tenon joint new energy automobile battery tray | |
| CN110369898A (en) | A kind of tube chamber welds with base method and manufacture craft | |
| CN114799753B (en) | Manufacturing method of space special-shaped multi-curved-surface steel structure | |
| CN109500526B (en) | Assembling method of vibration simulation platform | |
| CN114986003A (en) | Manufacturing method of burner shell for radiant tube | |
| CN212918154U (en) | Lower frame tailor-welding tool | |
| CN210451503U (en) | I-steel prefabricating device | |
| CN111531385A (en) | Stator section machining clamping device and clamping method | |
| CN216781531U (en) | Large-scale pre-assembly platform | |
| CN216990624U (en) | Mould for manufacturing side plate of cell shell end of aluminum electrolytic cell | |
| CN219617034U (en) | Workpiece frame reverse deformation welding mould | |
| CN217255843U (en) | SKD equipment location frock | |
| CN215857151U (en) | Assembly is assembled to truss unit spare in about steel case roof beam | |
| CN115431004B (en) | Welding method for inner flange of large-span U-shaped trestle | |
| WO2024103498A1 (en) | Chassis assembly and welding method | |
| CN219381694U (en) | Composite material forming die for lower shell structure of target aircraft fuselage plate | |
| CN218081210U (en) | Welding fastening anti-deformation device | |
| CN219959692U (en) | Predetermined framework structure of electrical cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |