CN111618524A - Double-wall pipe outer pipe centering device - Google Patents
Double-wall pipe outer pipe centering device Download PDFInfo
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- CN111618524A CN111618524A CN202010540947.7A CN202010540947A CN111618524A CN 111618524 A CN111618524 A CN 111618524A CN 202010540947 A CN202010540947 A CN 202010540947A CN 111618524 A CN111618524 A CN 111618524A
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- annular plate
- hook
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
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- Supports For Pipes And Cables (AREA)
Abstract
The invention relates to the technical field of pipeline fixing and supporting equipment, in particular to a double-wall pipe outer pipe centering device which is characterized by consisting of a left upper annular plate, a right upper annular plate, a left lower annular plate, a right lower annular plate, an upper middle support, an upper side support, a lower middle support, a lower side support, an upper drag hook, a lower drag hook, an upper jackscrew and a lower jackscrew.
Description
Technical Field
The invention relates to the technical field of pipeline fixing and supporting equipment, in particular to a double-wall pipe outer pipe centering device which is simple in structure and convenient to operate, can effectively eliminate the use limit of fields, spaces and personnel cooperation, increases the use range of the device and reduces the use cost of the device.
Background
As is known, natural gas needs to be transported by using double-layer pipes, and the pipeline connection adopts butt welding. The pipelines are all thin-wall stainless steel pipes. In the connection process of the adjacent body of reality, generally all weld the inner tube earlier, and the welding is accomplished and is suppressed experimentally, carries out the welding of outer tube again after sealed not revealing, at outer union coupling department, generally adopts two half pipe pieces to splice, has six welding seams, difficult centering, needs many people to assist in the accommodation process, and the welding position piece need be welded on the parent metal in the individual position, can consume, wasted a large amount of manpower, material resources and financial resources. And the centering overstress of the pipeline is reduced.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide the double-wall pipe outer pipe centering device which has a simple structure and is convenient to operate, can effectively eliminate the use limit of fields, spaces and personnel cooperation, increases the use range of the device and reduces the use cost of the device.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a double-wall pipe outer pipe centering device is characterized by comprising a left upper annular plate, a right upper annular plate, a left lower annular plate, a right lower annular plate, an upper middle support, an upper side support, a lower middle support, a lower side support, an upper drag hook, a lower drag hook, an upper jackscrew and a lower jackscrew, wherein the left upper annular plate and the right upper annular plate are parallel to each other and are connected with the upper side support through the upper middle support, the upper middle support is arranged in the middle of the left upper annular plate and the right upper annular plate, two ends of the upper middle support are respectively connected with the left upper annular plate and the right upper annular plate, the upper side support is provided with the upper threaded holes, the upper drag hook penetrates through the holes, the upper jackscrew is arranged in the upper threaded holes, the upper draw hook penetrates through the hole and is internally provided with an upper draw hook, a left lower annular plate and a right lower annular plate which are mutually buckled with the left upper annular plate and the right upper annular plate are respectively arranged under the left upper annular plate and the right upper annular plate, the front end and the rear end of the left lower annular plate and the right lower annular plate are respectively connected through a locking component in a locking way, the left lower annular plate and the right lower annular plate are mutually parallel and are connected with a lower side support through a lower middle support, the lower middle support is arranged in the middle of the left lower annular plate and the right lower annular plate, the two ends of the lower middle support are respectively connected with the left lower annular plate and the right lower annular plate, the lower side support is arranged at the front end and the rear end of the left lower annular plate and the right lower annular plate, the two ends of the lower side support are respectively connected with the left lower annular plate and the right lower annular plate, the lower middle support and the lower side support are provided with a, the lower drag hook passes through the downthehole drag hook that is equipped with down of hole, catches on section of jurisdiction and lower tube piece respectively through last drag hook and lower drag hook, and the jackscrew corresponds the welding with the outer tube of section of jurisdiction and lower tube piece and double-walled pipe in the promotion of section of jurisdiction and lower section of jurisdiction on the rethread, and then realizes the centering of the outer tube of adjacent double-walled pipe and connects.
The upper middle support, the upper side support, the lower middle support and the lower side support are respectively provided with two threaded holes, and an upper jackscrew and a lower jackscrew are arranged in the threaded holes, so that the stability of the upper jackscrew and the lower jackscrew in the pushing process is ensured.
The locking assembly comprises an upper convex seat, a lower convex seat, a pin shaft, a locking screw and a butterfly-shaped locking nut, wherein the upper convex seat and the lower convex seat are respectively arranged on the front side and the rear side of a left upper annular plate, a right upper annular plate, a left lower annular plate and a right lower annular plate, the upper convex seat and the lower convex seat are respectively and correspondingly provided with an upper clamping groove and a lower clamping groove, the lower convex seats on the two sides of the lower clamping groove are provided with pin holes, the pin shaft arranged on the two sides of the lower end of the locking screw penetrates through the pin holes to realize the hinge connection of the locking screw and the lower convex seat, the upper end of the locking screw is sleeved with the butterfly-shaped locking nut, the locking screw is rotated into the upper clamping groove of the upper convex seat and is locked by the butterfly-shaped locking nut above the upper convex seat, and further the mutual locking of the left upper annular plate, the left.
The upper and middle supports, the upper side support, the lower and middle support and the lower side support are all designed to be of an n-type structure, the upper and middle supports and the upper side support of the n-type structure are respectively connected with the left upper annular plate and the right upper annular plate, the lower and middle supports and the lower side support of the n-type structure are respectively connected with the left lower annular plate and the right lower annular plate, and the upper and middle supports, the upper side support, the lower and middle support and the lower side support of the n-type structure increase the operating space of an upper jackscrew and a lower jackscrew, so that the welding operation is facilitated.
The upper draw hook on the upper side support at the front side connected with the left upper ring plate and the right upper ring plate is inclined towards the lower side and the rear side through the hole, so that the upper draw hook in the upper draw hook penetrating hole pulls the front end of the upper duct piece, the upper draw hook on the upper side support at the rear side connected with the left upper ring plate and the right upper ring plate is inclined towards the lower side and the front side through the hole, and the upper draw hook in the upper draw hook penetrating hole pulls the rear end of the upper duct piece.
The lower draw hook on the lower side support at the front side, connected with the left lower annular plate and the right lower annular plate, of the invention inclines backwards after passing through the hole, so that the lower draw hook passes through the lower draw hook in the hole to draw the front end of the lower duct piece, the lower draw hook on the lower side support at the rear side, connected with the left lower annular plate and the right lower annular plate, of the invention inclines forwards through the hole to the front side, and then the lower draw hook in the lower draw hook passing through the hole pulls the rear end of the lower duct piece.
The upper drag hook and the lower drag hook are composed of a drag screw, a butterfly-shaped drag nut and a drag hook, the lower end of the drag screw is connected with the upper end of the drag hook, the upper end of the drag screw penetrates through the upper drag hook through hole or the lower drag hook through hole to be connected with the butterfly-shaped drag nut, the upper duct piece or the lower duct piece is hooked by the drag hook, and then the butterfly-shaped drag nut is rotated to adjust so as to hook the upper duct piece or the lower duct piece.
The device comprises a left upper annular plate, a right upper annular plate, a left lower annular plate, a right lower annular plate, an upper middle support, an upper side support, a lower middle support, a lower side support, an upper drag hook, a lower drag hook, an upper jackscrew and a lower jackscrew, wherein the left upper annular plate and the right upper annular plate are parallel to each other and are connected with each other through the upper middle support and the upper side support, the upper middle support is arranged in the middle of the left upper annular plate and the right upper annular plate, two ends of the upper middle support are respectively connected with the left upper annular plate and the right upper annular plate, the upper side support is arranged at the front end part and the rear end part of the left upper annular plate and the right upper annular plate, two ends of the upper side support are respectively connected with the left upper annular plate and the right upper annular plate, upper threaded holes are arranged on the upper middle support and the upper side support, the upper drag hook is, a left lower annular plate and a right lower annular plate which are mutually buckled with the left upper annular plate and the right upper annular plate are respectively arranged under the left upper annular plate and the right upper annular plate, the front end and the rear end of the left lower annular plate and the right lower annular plate are respectively connected through locking components in a locking way, the left lower annular plate and the right lower annular plate are mutually parallel and are connected with a lower side support through a lower middle support, the lower middle support is arranged in the middle of the left lower annular plate and the right lower annular plate, the two ends of the lower middle support are respectively connected with the left lower annular plate and the right lower annular plate, the lower side support is arranged at the front end and the rear end of the left lower annular plate and the right lower annular plate, the two ends of the lower side support are respectively connected with the left lower annular plate and the right lower annular plate, a lower threaded hole is arranged on the lower middle support and the lower side support, a lower pull hook passing hole is arranged on the lower side support, a lower, the upper and lower pipe pieces are correspondingly welded with the outer pipes of the double-wall pipes by the upper and lower draw hooks and the upper and lower jackscrews are pushed to the upper and lower pipe pieces by the upper and lower jackscrews, so as to realize the centering connection of the outer pipes of the adjacent double-wall pipes, two threaded holes are respectively arranged on the upper and middle brackets, the upper and lower middle brackets and the lower bracket, the upper jackscrews and the lower jackscrews are arranged in the threaded holes to ensure the stability of the upper jackscrews and the lower jackscrews in the pushing process, the locking assembly consists of an upper convex seat, a lower convex seat, a pin shaft, a locking screw and a butterfly-shaped locking nut, the upper convex seat and the lower convex seat are respectively arranged at the front and the rear sides of the left upper ring plate, the right upper ring plate, the left lower ring plate and the right lower ring plate, the upper convex seat and the lower convex seat are respectively and correspondingly provided with an upper clamping groove and a lower clamping groove, the lower convex seat at the two sides of the lower clamping groove is provided with a, the pin shafts arranged on two sides of the lower end of the locking screw penetrate through the pin holes to realize the hinge connection of the locking screw and the lower convex seat, the upper end of the locking screw is sleeved with the butterfly locking nut, the locking screw is rotated into the upper clamping groove of the upper convex seat and is locked by the butterfly locking nut above the upper convex seat, so that the mutual locking of the left upper annular plate, the left lower annular plate, the right upper annular plate and the right lower annular plate is realized, the upper middle bracket, the upper side bracket, the lower middle bracket and the lower side bracket are all designed into an n-shaped structure, the upper middle bracket and the upper side bracket of the n-shaped structure are respectively connected with the left upper annular plate and the right upper annular plate, the lower middle bracket and the lower side bracket of the n-shaped structure are respectively connected with the left lower annular plate and the right lower annular plate, the operation space of the upper jackscrew and the lower jackscrew of the n-shaped structure is enlarged by the upper middle bracket, the, last drag hook on the upside support of the front side that upper ring plate and upper right ring plate are connected on a left side pass the hole and incline backward downwards, and then make and go up the drag hook and pass the downthehole front end that the segment was pulled to last drag hook, last lower drag hook on the upside support of the rear side that upper ring plate and upper right ring plate are connected on a left side pass the hole and incline backward downwards, and then make and go up the drag hook and pass the downthehole back end that the segment was pulled to last drag hook, lower drag hook on the downside support of the rear side that lower ring plate and lower right ring plate are connected on a left side pass the hole and incline backward upwards, and then make lower drag hook pass the downthehole rear end that the segment was pulled to lower drag hook, last drag hook and lower drag hook all by pulling screw rod, Butterfly pulling nut, pull rod hook constitute, the lower extreme of pulling screw rod be connected with the upper end of pull rod hook, the upper end of pulling screw rod pass the drag hook and pass the hole or the lower hook passes the hole and be connected with butterfly pulling nut, collude upper segment or lower tube sheet through the pull rod hook and rotate butterfly pulling nut regulation and then collude upper segment or lower tube sheet, have simple structure, convenient operation, can effectually eliminate advantage such as place, space and personnel complex use restriction, increase device application range, reduction device use cost.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the connection structure of the left upper annular plate and the right upper annular plate in fig. 1.
Fig. 3 is a schematic view of a connection structure of the left lower annular plate and the right lower annular plate in fig. 1.
Fig. 4 is a schematic view of the upper and lower retractor of fig. 1.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in the attached drawings, the double-wall pipe outer pipe centering device is characterized by comprising a left upper annular plate 1, a right upper annular plate 2, a left lower annular plate 3, a right lower annular plate 4, an upper middle support 5, an upper side support 6, a lower middle support 7, a lower side support 8, an upper draw hook 9, a lower draw hook, an upper jackscrew 11 and a lower jackscrew, wherein the left upper annular plate 1 and the right upper annular plate 2 are parallel to each other and are connected with each other through the upper middle support 5 and the upper side support 6, the upper middle support 5 is arranged in the middle of the left upper annular plate 1 and the right upper annular plate 2, two ends of the upper middle support 5 are respectively connected with the left upper annular plate 1 and the right upper annular plate 2, the upper side support 6 is arranged at the front end part and the rear end part of the left upper annular plate 1 and the right upper annular plate 2, two ends of the upper side support 6 are respectively connected with the left upper annular plate 1 and the right upper annular plate 2, the upper side support 6 is provided with an upper draw hook through hole 24, an upper jackscrew 11 is arranged in an upper threaded hole 23, an upper draw hook 9 is arranged in the upper draw hook through hole 24, a left lower annular plate 3 and a right lower annular plate 4 which are mutually buckled with the left upper annular plate 1 and the right upper annular plate 2 are respectively arranged under the left upper annular plate 1 and the right upper annular plate 2, the front end and the rear end of the left lower annular plate 3 and the right lower annular plate 4 are respectively connected through a locking component in a locking way, the left lower annular plate 3 and the right lower annular plate 4 are mutually parallel and are connected through a lower middle support 7 and a lower side support 8, the lower middle support 7 is arranged in the middle of the left lower annular plate 3 and the right lower annular plate 4, the two ends of the lower middle support 7 are respectively connected with the left lower annular plate 3 and the right lower annular plate 4, the lower side support is arranged at the front end and the rear end of the left lower annular plate 3 and the right lower annular plate 4, the two ends of the lower side support 8, the lower middle support 7 and the lower side support 8 are provided with lower threaded holes 25, the lower side support 8 is provided with lower drag hook through holes 26, lower jackscrews are arranged in the lower threaded holes 25, lower drag hooks are arranged in the lower drag hook through holes 26, an upper duct piece and a lower duct piece are respectively hooked through an upper drag hook 9 and a lower drag hook, the upper duct piece and the lower duct piece are correspondingly welded with outer tubes of double-wall tubes through the push of the upper jackscrews 11 and the lower jackscrews to the upper duct piece and the lower duct piece, so that the centering connection of the outer tubes of the adjacent double-wall tubes is realized, the upper middle support 5, the upper side support 6, the lower middle support 7 and the lower side support 8 are respectively provided with two threaded holes, the upper jackscrews 11 and the lower jackscrews are arranged in the threaded holes, the stability of the upper jackscrews 11 and the lower jackscrews in the pushing process is ensured, and the locking assembly consists of an upper convex seat 13, a lower convex seat 14, the upper convex seat 13 and the lower convex seat 14 are respectively arranged at the front side and the rear side of the left upper annular plate 1, the right upper annular plate 2, the left lower annular plate 3 and the right lower annular plate 4, the upper convex seat 13 and the lower convex seat 14 are respectively and correspondingly provided with an upper clamping groove 17 and a lower clamping groove 18, the lower convex seat 14 at the two sides of the lower clamping groove 18 is provided with a pin hole 19, pin shafts arranged at the two sides of the lower end of the locking screw 15 penetrate through the pin holes 19 to realize the hinge connection of the locking screw 15 and the lower convex seat 14, the upper end of the locking screw 15 is sleeved with a butterfly-shaped locking nut 16, the locking screw 15 is rotated into the upper clamping groove 17 of the upper convex seat 13 and is locked by the butterfly-shaped locking nut 16 above the upper convex seat 13, so as to realize the mutual locking of the left upper annular plate 1 and the left lower annular plate 3, the right upper annular plate 2 and the right lower annular plate 4, the upper middle bracket 5, the upper middle bracket 6, the upper middle support 5 and the upper side support 6 of the n-type structure are respectively connected with the left upper annular plate 1 and the right upper annular plate 2, the lower middle support 7 and the lower side support 8 of the n-type structure are respectively connected with the left lower annular plate 3 and the right lower annular plate 4, the upper middle support 5, the upper side support 6, the lower middle support 7 and the lower side support 8 of the n-type structure increase the operating space of an upper jackscrew 11 and a lower jackscrew, so that the welding action is convenient to perform, the upper drag hook on the upper side support 6 at the front side where the left upper annular plate 1 and the right upper annular plate 2 are connected inclines backwards through the hole 24, so that the upper drag hook passes through the upper drag hook 9 in the hole 24 to pull the front end of the upper duct piece, the upper drag hook on the upper side support 6 at the rear side where the left upper annular plate 1 and the right upper annular plate 2 are connected inclines towards the front side downwards through the hole 24, and then the upper drag hook 9 in the upper drag, the lower draw hook on the lower side bracket 8 at the front side connected with the left lower annular plate 3 and the right lower annular plate 4 passes through the hole 26 and inclines upwards and backwards, and the lower draw hook passes through the lower draw hook in the hole 26 to draw the front end of the lower segment, the lower draw hook on the lower bracket 8 at the rear side of the connection of the left lower annular plate 3 and the right lower annular plate 4 passes through the hole 26 and inclines towards the lower front side, so that the lower draw hook passes through the lower draw hook in the hole 26 to draw the rear end of the lower segment, the upper draw hook 9 and the lower draw hook are both composed of a drawing screw 20, a butterfly drawing nut 21 and a draw rod hook 22, the lower end of the pulling screw rod 20 is connected with the upper end of a pulling rod hook 22, the upper end of the pulling screw rod 20 passes through an upper pulling hook through hole 24 or a lower pulling hook through hole 26 to be connected with a butterfly pulling nut 21, the pull rod hook 22 hooks the upper pipe piece or the lower pipe piece, and then the butterfly-shaped pulling nut 21 is rotated to adjust, so that the upper pipe piece or the lower pipe piece is hooked.
When the invention is used, a left upper annular plate 1 and a left lower annular plate 3 are buckled, a right upper annular plate 2 and a right lower annular plate 4 are buckled, then the upper annular plate and the right upper annular plate are respectively locked at the end parts of adjacent pipe bodies through locking components, the concentricity between an upstream outer pipe and a downstream outer pipe of the adjacent pipe bodies is ensured, meanwhile, the distance between the upstream outer pipe and the downstream outer pipe is fixed, an upper pipe piece with welding is arranged between the upstream outer pipe and the downstream outer pipe below an upper middle bracket 5 and an upper side bracket 6, the two ends of the upper pipe piece are respectively hooked and pulled through an upper pull hook 9 on the upper side bracket 6, then an upper jackscrew 11 on the upper middle bracket 5 is pushed downwards, the two sides of the middle part of the upper pipe piece are respectively parallel to the upstream outer pipe and the downstream outer pipe, then the upper pipe piece below the upper middle bracket 5 is connected with the upstream outer pipe and the downstream outer pipe through spot, then the upper drag hook 9 is loosened, then the upper jackscrews 11 on the upper side supports 6 at the front and the rear sides push the front and the rear ends of the upper duct piece, so that the left and the right sides of the front and the rear ends of the upper duct piece are respectively aligned with the upstream outer tube and the downstream outer tube, the front and the rear ends of the upper duct piece are connected to the upstream outer tube and the downstream outer tube through spot welding after alignment, the upper duct piece is positioned, the lower duct piece is spot-welded in the same way as the upper duct piece, after the spot welding is finished, the device is disassembled, then the six welding seams are sealed and welded, and further the centering connection between the upstream outer tube and the downstream outer tube is realized The upper support 6 is arranged at the front end part and the rear end part of the left upper annular plate 1 and the right upper annular plate 2, the two ends of the upper support 6 are respectively connected with the left upper annular plate 1 and the right upper annular plate 2, the upper support 5 and the upper support 6 are respectively provided with an upper threaded hole 23, the upper support 6 is provided with an upper draw hook through hole 24, the upper threaded hole 23 is internally provided with an upper jackscrew 11, an upper draw hook 9 is arranged in the upper draw hook passing hole 24, a left lower annular plate 3 and a right lower annular plate 4 which are mutually buckled with the left upper annular plate 1 and the right upper annular plate 2 are respectively arranged under the left upper annular plate 1 and the right upper annular plate 2, the front end and the rear end of the left lower annular plate 3 and the front end and the rear end of the right lower annular plate 4 are respectively locked and connected through a locking component, the left lower annular plate 3 and the right lower annular plate 4 are mutually parallel and are connected with a lower middle support 7 and a lower side support 8, the lower middle support 7 is arranged in the middle of the left lower annular plate 3 and the right lower annular plate 4, the two ends of the lower middle support 7 are respectively connected with the left lower annular plate 3 and the right lower annular plate 4, the lower side supports are arranged at the front end and the rear end of the left lower annular plate 3 and the right lower annular plate 4, the two ends of the lower side support 8 are respectively connected with the left lower annular plate 3 and the right lower annular plate 4, and, the lower side support 8 is provided with a lower draw hook passing hole 26, a lower thread hole 25 is internally provided with a lower jackscrew, the lower draw hook passes through the hole 26 and is internally provided with a lower draw hook, the upper segment and the lower segment are respectively hooked by the upper draw hook 9 and the lower draw hook, the upper segment and the lower segment are correspondingly welded by the push of the upper jackscrew 11 and the lower jackscrew to the upper segment and the lower segment, and the outer tube of the upper segment and the lower segment is further connected in a centering way, the upper middle support 5, the upper side support 6, the lower middle support 7 and the lower side support 8 are respectively provided with two thread holes, the upper jackscrew 11 and the lower jackscrew are arranged in the thread holes, the stability of the upper jackscrew 11 and the lower jackscrew in the pushing process is ensured, the locking assembly consists of an upper convex seat 13, a lower convex seat 14, a pin shaft, a locking screw 15 and a butterfly-shaped locking nut 16, the upper convex seat 13 and the lower convex, The front and back sides of the right upper annular plate 2, the left lower annular plate 3 and the right lower annular plate 4 are respectively and correspondingly provided with an upper clamping groove 17 and a lower clamping groove 18 on the upper convex seat 13 and the lower convex seat 14, pin holes 19 are arranged on the lower convex seat 14 on the two sides of the lower clamping groove 18, pin shafts arranged on the two sides of the lower end of the locking screw 15 penetrate through the pin holes 19 to realize the hinge connection of the locking screw 15 and the lower convex seat 14, the upper end of the locking screw 15 is sleeved with a butterfly-shaped locking nut 16, the locking screw 15 is rotated into the upper clamping groove 17 of the upper convex seat 13 and is locked by the butterfly-shaped locking nut 16 above the upper convex seat 13, so that the left upper annular plate 1 and the left lower annular plate 3 as well as the right upper annular plate 2 and the right lower annular plate 4 are mutually locked, the upper middle bracket 5, the upper side bracket 6, the lower middle bracket 7 and the lower side bracket 8 are all designed into an n-shaped structure, the upper middle bracket 5 and the upper side bracket 6 in, the lower middle support 7 and the lower side support 8 of the n-type structure are respectively connected with the left lower annular plate 3 and the right lower annular plate 4, the upper middle support 5, the upper side support 6, the lower middle support 7 and the lower side support 8 of the n-type structure increase the operating space of the upper jackscrew 11 and the lower jackscrew, and facilitate the welding action, the upper draw hook on the upper side support 6 at the front side where the left upper annular plate 1 and the right upper annular plate 2 are connected inclines towards the rear side downwards through the hole 24, so that the upper draw hook passes through the upper draw hook 9 in the hole 24 to pull the front end of the upper duct piece, the upper draw hook on the upper side support 6 at the rear side where the left upper annular plate 1 and the right upper annular plate 2 are connected inclines towards the front side downwards through the hole 24, so that the upper draw hook 9 in the upper draw hook passes through the hole 24 to pull the rear end of the upper duct piece, the lower draw hook 26 on the lower side support 8 at the front side where the left lower annular plate 3 and the right, and then make the lower hook pass the front end that the lower section of jurisdiction was pulled to the lower hook in the hole 26, the lower drag hook on the downside support 8 of the rear side that the lower annular plate 3 in a left side and the lower annular plate 4 in the right side are connected pass hole 26 and slope towards the front side that descends, and then make the lower hook pass the lower hook in the hole 26 and pull the rear end of lower section of jurisdiction, last drag hook 9 and lower drag hook all constitute by pulling screw 20, butterfly pulling nut 21, pull rod hook 22, the lower extreme of pulling screw 20 be connected with the upper end of pull rod hook 22, the upper end of pulling screw 20 pass last drag hook and pass hole 24 or lower drag hook and pass hole 26 and be connected with butterfly pulling nut 21, hook upper segment or lower section of jurisdiction through pull rod hook 22 and rotate butterfly pulling nut 21 and adjust and then hook upper segment or lower section of jurisdiction, have simple structure, convenient operation, can effectually eliminate place, space and personnel complex use restriction, The application range of the device is enlarged, the application cost of the device is reduced, and the like.
Claims (7)
1. A double-wall pipe outer pipe centering device is characterized by comprising a left upper annular plate, a right upper annular plate, a left lower annular plate, a right lower annular plate, an upper middle support, an upper side support, a lower middle support, a lower side support, an upper drag hook, a lower drag hook, an upper jackscrew and a lower jackscrew, wherein the left upper annular plate and the right upper annular plate are parallel to each other and are connected with the upper side support through the upper middle support, the upper middle support is arranged in the middle of the left upper annular plate and the right upper annular plate, two ends of the upper middle support are respectively connected with the left upper annular plate and the right upper annular plate, the upper side support is provided with the upper threaded holes, the upper drag hook penetrates through the holes, the upper jackscrew is arranged in the upper threaded holes, the upper draw hook penetrates through the hole and is internally provided with an upper draw hook, a left lower annular plate and a right lower annular plate which are mutually buckled with the left upper annular plate and the right upper annular plate are respectively arranged under the left upper annular plate and the right upper annular plate, the front end and the rear end of the left lower annular plate and the right lower annular plate are respectively connected through a locking component in a locking way, the left lower annular plate and the right lower annular plate are mutually parallel and are connected with a lower side support through a lower middle support, the lower middle support is arranged in the middle of the left lower annular plate and the right lower annular plate, the two ends of the lower middle support are respectively connected with the left lower annular plate and the right lower annular plate, the lower side support is arranged at the front end and the rear end of the left lower annular plate and the right lower annular plate, the two ends of the lower side support are respectively connected with the left lower annular plate and the right lower annular plate, the lower middle support and the lower side support are provided with a, the lower drag hook passes through the downthehole drag hook that is equipped with down of hole, catches on section of jurisdiction and lower tube piece respectively through last drag hook and lower drag hook, and the jackscrew corresponds the welding with the outer tube of section of jurisdiction and lower tube piece and double-walled pipe in the promotion of section of jurisdiction and lower section of jurisdiction on the rethread, and then realizes the centering of the outer tube of adjacent double-walled pipe and connects.
2. The double-walled pipe outer tube centering device of claim 1, wherein the upper middle support, the upper side support, the lower middle support and the lower side support are respectively provided with two threaded holes, and an upper jackscrew and a lower jackscrew are arranged in the threaded holes.
3. The double-walled pipe outer tube centering device of claim 1, wherein the locking assembly is composed of an upper convex seat, a lower convex seat, a pin shaft, a locking screw and a butterfly-shaped locking nut, the upper convex seat and the lower convex seat are respectively arranged at the front side and the rear side of the left upper annular plate, the right upper annular plate, the left lower annular plate and the right lower annular plate, the upper convex seat and the lower convex seat are respectively and correspondingly provided with an upper clamping groove and a lower clamping groove, the lower convex seats at both sides of the lower clamping groove are provided with pin holes, pin shafts arranged at both sides of the lower end of the locking screw rod penetrate through the pin holes to realize the hinge connection of the locking screw rod and the lower convex seats, the upper end of the locking screw is sleeved with a butterfly-shaped locking nut, the locking screw is rotated into the upper clamping groove of the upper convex seat and is locked by the butterfly-shaped locking nut above the upper convex seat, and then the mutual locking of the left upper annular plate and the left lower annular plate, and the mutual locking of the right upper annular plate and the right lower annular plate are realized.
4. The double-walled pipe outer tube centering device of claim 1, wherein the upper middle support, the upper side support, the lower middle support and the lower side support are all designed to be n-shaped structures, the upper middle support and the upper side support of the n-shaped structures are respectively connected with the left upper annular plate and the right upper annular plate, the lower middle support and the lower side support of the n-shaped structures are respectively connected with the left lower annular plate and the right lower annular plate, and the upper middle support, the upper side support, the lower middle support and the lower side support of the n-shaped structures increase the operating space of the upper jackscrew and the lower jackscrew, thereby facilitating the welding operation.
5. The double-walled pipe outer tube centering device of claim 1, characterized in that the upper draw hook on the upper side support of the front side that upper left annular plate and upper right annular plate are connected inclines backward downwards through the hole, and then makes the upper draw hook pass the front end that the upper segment was pulled to the upper draw hook in the hole, the upper draw hook on the upper side support of the rear side that upper left annular plate and upper right annular plate are connected incline forward downwards through the hole, and then makes the upper draw hook pass the rear end that the upper segment was pulled to the upper draw hook in the hole.
6. The double-walled pipe outer tube centering device of claim 1, wherein the lower draw hook on the lower side support of the front side where the left lower annular plate and the right lower annular plate are connected passes through the hole and inclines backward upward, so that the lower draw hook in the lower draw hook passing hole pulls the front end of the lower pipe piece, the lower draw hook on the lower side support of the rear side where the left lower annular plate and the right lower annular plate are connected passes through the hole and inclines forward downward, so that the lower draw hook in the lower draw hook passing hole pulls the rear end of the lower pipe piece.
7. The double-walled pipe outer tube centering device of claim 1, characterized in that the upper drag hook and the lower drag hook are both composed of a pulling screw, a butterfly pulling nut and a pull rod hook, the lower end of the pulling screw is connected with the upper end of the pull rod hook, the upper end of the pulling screw passes through the upper drag hook and the hole or the lower drag hook passes through the hole and is connected with the butterfly pulling nut, the pull rod hook hooks the upper segment or the lower segment and then rotates the butterfly pulling nut to adjust so as to hook the upper segment or the lower segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540947.7A CN111618524A (en) | 2020-06-15 | 2020-06-15 | Double-wall pipe outer pipe centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010540947.7A CN111618524A (en) | 2020-06-15 | 2020-06-15 | Double-wall pipe outer pipe centering device |
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| Publication Number | Publication Date |
|---|---|
| CN111618524A true CN111618524A (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010540947.7A Pending CN111618524A (en) | 2020-06-15 | 2020-06-15 | Double-wall pipe outer pipe centering device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605647A (en) * | 2020-12-15 | 2021-04-06 | 中国航空工业集团公司北京航空精密机械研究所 | Tool for finely adjusting frame position in assembly |
| CN113210978A (en) * | 2021-05-19 | 2021-08-06 | 国网新源控股有限公司 | Pressure steel plate misalignment correction device and correction method thereof |
-
2020
- 2020-06-15 CN CN202010540947.7A patent/CN111618524A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605647A (en) * | 2020-12-15 | 2021-04-06 | 中国航空工业集团公司北京航空精密机械研究所 | Tool for finely adjusting frame position in assembly |
| CN113210978A (en) * | 2021-05-19 | 2021-08-06 | 国网新源控股有限公司 | Pressure steel plate misalignment correction device and correction method thereof |
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