CN115609215B

CN115609215B - Welding device for large petrochemical equipment lifting appliance

Info

Publication number: CN115609215B
Application number: CN202211552653.1A
Authority: CN
Inventors: 王令; 张云娣; 李郭平; 徐琳
Original assignee: Taizhou Yuanpeng Slings Co ltd
Current assignee: Taizhou Yuanpeng Slings Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-03-21
Anticipated expiration: 2042-12-06
Also published as: CN115609215A

Abstract

The invention relates to the technical field of welding, and discloses a welding device for a large-scale petrochemical equipment lifting appliance, which comprises a lifting frame and an automatic welding gun, wherein the bottom of the lifting frame is symmetrically and fixedly connected with a first mounting plate and a second mounting plate, the bottoms of the first mounting plate and the second mounting plate are respectively provided with a first clamping assembly and a second clamping assembly, the first clamping assembly comprises a first bidirectional screw rod assembly and two semicircular first clamping sleeves, the two first clamping sleeves are driven by the first bidirectional screw rod assembly, the second clamping assembly comprises a second bidirectional screw rod assembly and two semicircular second clamping sleeves, the two second clamping sleeves are driven by the second bidirectional screw rod assembly, one end of each second clamping sleeve is provided with an embedded groove, and a semicircular clamping sleeve is embedded and connected in each embedded groove.

Description

Welding device for large-scale petrochemical equipment lifting appliance

Technical Field

The invention relates to the technical field of welding, in particular to a welding device for a large-scale petrochemical equipment lifting appliance.

Background

Petrochemical engineering requires the use of large quantities of pipes for the transport of gases and liquids during the construction of facilities, where pipe welding is an important process step during pipe construction.

Chinese patent publication No. CN110280931a discloses a petrochemical engineering welding device, including a base and a limiting device, a working groove is formed in the top of the base, a fixed base and a baffle are arranged at the bottom of an inner cavity of the working groove, a left fixed ring is arranged at the top of the fixed base, a rotating motor is arranged at the top of the base, a rotating shaft is arranged on the right side of the rotating motor through a coupler, a left rotating disc is fixedly connected to the right end of the rotating shaft, a left rolling ball is arranged between the left fixed ring and the left rotating disc, a driving shaft is arranged on the right side of the left rotating disc, an electric telescopic rod is arranged on the right side wall of the working groove, a movable vehicle body is arranged on the left side of the electric telescopic rod, a right fixed ring is arranged at the top of the movable vehicle body, a right rotating disc is arranged in the inner cavity of the right fixed ring, a right rolling ball is arranged between the right fixed ring and the right rotating disc, and a driven shaft is arranged on the left side wall of the right rotating disc. The pipeline welding machine can realize the rotation of the pipeline when the pipeline is welded, is very suitable for the welding of the pipeline with large diameter, and effectively lightens the operation intensity of welding personnel.

However, the above patent also has the following problems: two pipelines of control are rotatory, then carry out 360 spin welding of scope, can only be applicable to the pipeline welding not buried underground, and can not weld many in the pipeline actual operation not buried underground, many pipelines too long can lead to the transportation difficulty, and the practicality is low, and if will not bury underground the pipeline with bury underground the pipeline that is carrying out spin welding in the region underground, the easy condition of fracture that takes place of the good and welded multistage pipeline of burying underground in this in-process, unable normal realization.

Disclosure of Invention

The invention aims to provide a welding device for a large-scale petrochemical equipment lifting appliance, which aims to solve the problems in the background technology.

The technical scheme of the invention is as follows: the utility model provides a welding set of large-scale petrochemical equipment hoist, includes gallows, automatic welder, first mounting panel of gallows bottom symmetry fixed connection and second mounting panel, first mounting panel and second mounting panel bottom are provided with first centre gripping subassembly and second centre gripping subassembly respectively, first centre gripping subassembly includes first bidirectional screw rod subassembly, two semicircular first centre gripping cover, two first centre gripping cover by first bidirectional screw rod subassembly drives, second centre gripping subassembly includes second bidirectional screw rod subassembly, two semicircular second centre gripping covers, two the second centre gripping cover is driven by the second bidirectional screw rod subassembly, every the embedded groove has all been seted up to second centre gripping cover one end, the embedding is connected with semicircular cutting ferrule in the embedded groove, be provided with first correction subassembly on the cutting ferrule periphery wall, it corrects the groove to have first correction subassembly in the embedded groove, first correction subassembly with first correction groove links to each other, two equal fixedly connected with semicircular rack on the cutting ferrule, one of them be provided with the drive assembly who is used for driving rack on the second centre gripping cover, all be provided with in the second centre gripping subassembly, be used for spacing subassembly in the second centre gripping cover processing installation mouth automatically.

Preferably, the first bidirectional screw rod assembly and the second bidirectional screw rod assembly are identical in structure, the first bidirectional screw rod assembly comprises two support plates which are symmetrically arranged, the tops of the support plates are fixedly connected with the bottom of the first mounting plate, the support plates are rotatably connected with bidirectional screw rods, one of the support plates is fixedly connected with a driving motor, an output shaft of the driving motor is fixedly connected with the bidirectional screw rods, the bidirectional screw rods are connected with two screw rod sleeves in a threaded manner, the screw rod sleeves are symmetrically arranged on the bidirectional screw rods, the bottom of each screw rod sleeve is fixedly connected with a connecting plate, and the bottom of the connecting plate is fixedly connected with the first clamping sleeve.

Preferably, every spacing subassembly all includes first mounting groove and second mounting groove, first mounting groove is vertical to be fixed the top of second centre gripping cover, the vertical bottom of fixing at the second centre gripping cover of second mounting groove, it is connected with first conflict piece and second conflict piece to imbed respectively in first mounting groove and the second mounting groove, first mounting groove with be connected with first spring between the first conflict piece, the second mounting groove with be connected with the second spring between the second conflict piece, first conflict piece with the equal fixedly connected with limiting plate in one side of second conflict piece, second mounting panel bottom fixedly connected with leading truck, first conflict piece top slide conflict in the leading truck, seted up the rope mouth in the first mounting groove, first conflict piece with the second conflict piece links to each other through the steel cable.

Preferably, the guide frame is composed of a horizontal section in the middle and inclined sections on two sides.

Preferably, the outer wall of the second clamping sleeve is fixedly connected with a shell, a pulley is rotatably connected in the shell and is positioned below the second contact block, and the shell is provided with a hole for a steel rope to penetrate through.

Preferably, the first correcting component comprises a semicircular extending wall, the extending wall is fixedly connected with the outer wall of the cutting sleeve, one end, close to the first correcting groove, of the extending wall is fixedly connected with a first correcting column, the first correcting column is in sliding and clamping connection with the first correcting groove, and first magnets are fixedly connected to opposite end faces of the first correcting groove and the first correcting column.

Preferably, two mounting brackets of fixedly connected with on the cutting ferrule periphery wall, every all rotate on the mounting bracket and be connected with the pivot, equal fixedly connected with drive gear in the pivot, the second correction groove has been seted up on the extension wall, the second correction subassembly links to each other in the second correction groove, the second correction subassembly includes that the second corrects post, semicircular pinion rack, pinion rack periphery wall and internal perisporium all have the driving tooth, pinion rack one end with post fixed connection is corrected to the second, the second correct the post with the second corrects groove slip joint, the second corrects the post and corrects the equal fixedly connected with second magnet of groove terminal surface in opposite directions with the second, the pinion rack with drive assembly links to each other.

Preferably, the outer peripheral wall of each rotating shaft is sleeved with a cleaning sleeve and a polishing sleeve respectively.

Preferably, drive assembly includes bow-shaped board, rotating electrical machines and reduction gear box, bow-shaped board and rotating electrical machines respectively with second centre gripping cover fixed connection, first rotating gear and the second rotating gear of fixedly connected with in proper order on the rotating electrical machines output shaft, first rotating gear with the pinion rack meshing is connected, the second rotating gear with the rack meshing is connected.

Preferably, the reduction gear box is located between the first rotating gear and the second rotating gear, the rotating motor output shaft penetrates through the reduction gear box, and the reduction gear box is fixedly connected with the arched plate.

The invention provides a welding device for a large-scale petrochemical equipment lifting appliance by improving, compared with the prior art, the welding device has the following improvements and advantages:

one is as follows: in the butt joint process of the pipeline, the hanger is conveyed to the position near the pipeline through the crane, then the first bidirectional screw rod assembly and the second bidirectional screw rod assembly are started simultaneously, the two first clamping sleeves move oppositely to clamp and fix one end of the pipeline, the second clamping sleeves move oppositely until the two second clamping sleeves are folded together and form a circular shape, so that the other end of the pipeline is clamped and fixed, the clamping sleeve is synchronously folded along with the folding action of the second clamping sleeves, then the pipeline is hoisted to a pipeline butt joint area, and in the pipeline butt joint area, the clamping sleeve after folding is firstly controlled to be sleeved in the other pipeline, so that the two pipelines are on the same axis, the pipelines are ensured to be in an aligned state, and the welding work is convenient to carry out.

The second step is as follows: according to the invention, the rack is driven by the driving assembly, so that the two folded cutting sleeves rotate along the axis of the pipeline, and the two cutting sleeves drive the automatic welding gun on the mounting block to rotate along the axis of the pipeline, so that the automatic welding gun can perform welding work on the joint between the two pipelines along the processing opening, and the welding work can be completed without rotating the pipeline.

And thirdly: according to the clamping device, a pipeline to be clamped is located in the range of the horizontal section of the guide frame, the axis of the second clamping sleeve and the axis of the pipeline are located at the same height, so that the heights of the two second clamping sleeves cannot be changed in the process of folding and clamping, the second clamping sleeves can be tightly attached to the pipeline, and when the two second clamping sleeves move in the range of the horizontal section of the guide frame, the clamping sleeve can be effectively stabilized through the first correction assembly and the first correction groove due to the fact that the embedded groove is in the opening state, and the clamping sleeve cannot slip from the embedded groove.

And the fourth step: when the two second clamping sleeves move in the horizontal section range of the guide frame, the two first magnets are mutually adsorbed, so that the position of the first correction column can be stabilized, the first correction column cannot slip from the first correction groove, namely, the clamping sleeve cannot slip out from the circumferential port of the embedded groove, the first correction column is slidably clamped in the first correction groove, and the clamping sleeve cannot slip out from the axial port of the embedded groove.

And fifthly: according to the invention, after pipeline welding work is finished, the driving assembly controls the clamping sleeve to complete a circle of rotation along the axis of the pipeline, then the driving assembly stops running, the clamping sleeve loses the transmission effect, the position of the clamping sleeve is almost the same as the position before the circle of rotation, the clamping sleeve can be effectively reset in the embedded groove under the action of the magnetic force of the two first magnets, then the two second clamping sleeves are controlled to move back to back, in the process of moving back, the second clamping sleeve firstly passes through the horizontal section of the guide frame, the clamping sleeve is stably adsorbed by the magnetic force in the process, and along with the continuation of the back movement, the limiting plates are reset under the action of the inclined section of the guide frame, so that the port of the embedded groove is blocked again, and therefore, when the clamping sleeve is idle, the clamping sleeve can be stably positioned in the embedded groove and can adapt to different degrees of collision.

And the sixth step: when the automatic welding gun welds the pipelines, the rotating shaft rotating at high speed can drive the cleaning sleeve to clean the gap between the two pipelines, so that impurities are reduced, the welding quality is improved, the polishing sleeve rotating at high speed can polish and flatten the welded seams, thereby facilitating the subsequent sealing and rust prevention of the seams, the cleaning, welding and polishing work can treat the pipelines through the processing openings, and the processing openings synchronously rotate along the peripheries of the pipelines along with the clamping sleeves.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic plan view of the overall structure of the present invention;

FIG. 3 is a schematic plan view of a process opening between two tubes according to the present invention;

FIG. 4 is a schematic plan view of the two second clamping sleeves of the present invention before being closed;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is an enlarged view of the point B in FIG. 4;

FIG. 7 is a perspective view of the hanger and the second clamping sleeve of the present invention;

FIG. 8 is a schematic perspective view of the two second clamping sleeves of the present invention when they are closed;

FIG. 9 is an enlarged view at C of FIG. 8;

FIG. 10 is a side view of the two second clamping sleeves of the present invention when they are closed;

FIG. 11 is an enlarged view of FIG. 10 at D;

FIG. 12 is a cross-sectional view of a second clamping sleeve of the present invention;

FIG. 13 is a partial schematic view of FIG. 12;

FIG. 14 is an enlarged view of E in FIG. 13;

FIG. 15 is a schematic cross-sectional view of a second clamping sleeve according to the present invention;

in the figure: 1. a hanger; 101. a first mounting plate; 102. a second mounting plate; 2. a first clamping sleeve; 3. a second clamping sleeve; 301. a groove is embedded; 302. a card sleeve; 303. a first correction slot; 304. a rack; 4. processing a port; 401. mounting blocks; 5. a mounting plate; 501. a bidirectional screw rod; 502. a drive motor; 503. a screw rod sleeve; 504. a connecting plate; 6. a first mounting groove; 601. a second mounting groove; 602. a first contact block; 603. a second contact block; 604. a first spring; 605. a second spring; 606. a limiting plate; 607. a guide frame; 608. a rope opening; 609. a steel cord; 610. a housing; 611. a pulley; 7. an extension wall; 701. a first correction column; 702. a first magnet; 8. a mounting frame; 801. a rotating shaft; 802. a transmission gear; 803. a second correction slot; 804. a second correction column; 805. a toothed plate; 806. a second magnet; 9. an arcuate plate; 901. a rotating electric machine; 902. a reduction gear box; 903. a first rotating gear; 904. a second rotating gear.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 15, an embodiment of the invention provides a welding device for a large-scale petrochemical equipment hanger, which comprises a hanger 1 and an automatic welding gun, wherein the bottom of the hanger 1 is symmetrically and fixedly connected with a first mounting plate 101 and a second mounting plate 102, the bottoms of the first mounting plate 101 and the second mounting plate 102 are respectively provided with a first clamping assembly and a second clamping assembly, the first clamping assembly comprises a first bidirectional screw rod assembly and two semicircular first clamping sleeves 2, the two first clamping sleeves 2 are driven by the first bidirectional screw rod assembly, the second clamping assembly comprises a second bidirectional screw rod assembly and two semicircular second clamping sleeves 3, the two second clamping sleeves 3 are driven by the second bidirectional screw rod assembly, one end of each second clamping sleeve 3 is provided with an embedded groove 301, a semicircular clamping sleeve 302 is embedded and connected in the embedded groove 301, the peripheral wall of the clamping sleeve 302 is provided with a first correcting assembly, a first correcting groove 303 is formed in the embedded groove 301, the first correcting assembly is connected with the first correcting groove 303 to prevent the clamping sleeve 302 from being separated from the second clamping sleeve 3, and the peripheral wall of the semicircular rack 304 is fixedly connected to the two semicircular clamping sleeves 302, one of the second clamping sleeves 3 is provided with a driving component for driving the rack 304, both the second clamping sleeves 3 are provided with a limiting component for limiting the clamping sleeve 302, when the ferrule 302 does not clamp the pipe, the limiting component is used for limiting the ferrule 302, so as to prevent the ferrule 302 from sliding out of the embedded groove 301, a processing opening 4 is formed in one of the second clamping sleeve 3, a mounting block 401 is fixedly connected to the outer peripheral wall of the second clamping sleeve 3, the mounting block 401 is used for mounting an automatic welding gun, and the automatic welding gun is a mature prior art and is not described repeatedly.

The structure of the first bidirectional screw rod assembly is consistent with that of the second bidirectional screw rod assembly, the first bidirectional screw rod assembly comprises two support plates 5 which are symmetrically arranged, the tops of the two support plates 5 are fixedly connected with the bottom of the first mounting plate 101, two bidirectional screws 501 are rotatably connected to the support plates 5, a driving motor 502 is fixedly connected to one support plate 5, an output shaft of the driving motor 502 is fixedly connected with the bidirectional screws 501, two screw rod sleeves 503 are in threaded connection with the bidirectional screws 501, the two screw rod sleeves 503 are symmetrically arranged on the bidirectional screws 501, a connecting plate 504 is fixedly connected to the bottoms of the screw rod sleeves 503, and the bottom of the connecting plate 504 is fixedly connected with the first clamping sleeve 2.

Specifically, the method comprises the following steps: in the butt joint process of the pipeline, firstly, a hanger 1 is conveyed to the position near the pipeline through a crane, then a first bidirectional screw rod assembly and a second bidirectional screw rod assembly are started simultaneously, two first clamping sleeves 2 move oppositely to clamp and fix one end of the pipeline, meanwhile, the second clamping sleeves 3 move oppositely until the two second clamping sleeves 3 are folded together to form a circle, so that the other end of the pipeline is clamped and fixed, meanwhile, a clamping sleeve 302 is synchronously folded along with the folding action of the second clamping sleeves 3, and then the pipeline is hoisted to a pipeline butt joint area;

in the butt joint area of the pipelines, firstly, the folded clamping sleeve 302 is controlled to be sleeved in the other pipeline, so that the two pipelines are on the same axis, the pipelines are ensured to be in an aligned state, and as shown in fig. 3, a gap between the two pipelines is in a processing range of a processing port 4, so that the welding work can be accurately and effectively carried out;

then, welding is carried out, the rack 304 is driven by the driving assembly, so that the two folded clamping sleeves 302 rotate along the axis of the pipeline, the two clamping sleeves 302 drive the automatic welding gun on the mounting block 401 to rotate along the axis of the pipeline, the automatic welding gun can carry out welding on the joint between the two pipelines along the processing port 4, and the welding can be finished without rotating the pipeline.

Every spacing subassembly all includes first mounting groove 6 and second mounting groove 601, the vertical top of fixing at second centre gripping cover 3 of first mounting groove 6, the vertical bottom of fixing at second centre gripping cover 3 of second mounting groove 601, it is connected with first touch-and-close piece 602 and second touch-and-close piece 603 to imbed respectively in first mounting groove 6 and the second mounting groove 601, be connected with first spring 604 between first mounting groove 6 and the first touch-and-close piece 602, be connected with second spring 605 between second mounting groove 601 and the second touch-and-close piece 603, the equal fixedly connected with limiting plate 606 in one side of first touch-and-close piece 602 and the second touch-and-close piece 603, second mounting panel 102 bottom fixedly connected with leading truck 607, first touch-and-close piece 602 top slides and contradicts in leading truck 607, seted up rope mouth 608 in first mounting groove 6, first touch-and second touch-close-and-close piece 602 link to each other through steel cable 609.

The guide frame 607 is composed of a horizontal section in the middle and inclined sections at both sides.

Specifically, the method comprises the following steps: referring to fig. 3, 4 and 5, when the two second clamping sleeves 3 are separated, the upper limiting plate 606 is used for blocking the top port of the embedded groove 301, and the lower limiting plate 606 is used for blocking the bottom port of the embedded groove 301, so that the clamping sleeve 302 is effectively limited;

along with the opposite movement of the second clamping sleeves 3, when the first contact block 602 passes through the inclined section in the guide frame 607, the first spring 604 can push the first contact block 602 to move upwards at the moment, so as to drive the upper limiting plate 606 to move upwards, so that the top port of the embedded groove 301 is opened, when the first contact block 602 moves upwards, the second contact block 603 is pulled to move downwards vertically through the steel rope 609, so that the lower limiting plate 606 moves downwards, so that the bottom port of the embedded groove 301 is opened, and when the two second clamping sleeves 3 are folded, the two clamping sleeves 302 can rotate in the two folded embedded grooves 301;

it is worth noting that: the pipeline to be clamped is positioned in the horizontal section range of the guide frame 607, and the axis of the second clamping sleeve 3 and the pipeline shaft core are positioned at the same height, so that the heights of the two second clamping sleeves 3 cannot be changed in the process of folding and clamping, and the second clamping sleeves 3 can be tightly attached to the pipeline;

and two second clamping sleeve 3 when removing in the horizontal segment within range of leading truck 607, because embedded groove 301 is in the open mode, cutting ferrule 302 can effectively be stabilized through first correction subassembly and first correction groove 303 to guarantee that cutting ferrule 302 can not follow the slippage in embedded groove 301.

The outer wall of the second clamping sleeve 3 is further fixedly connected with an outer shell 610, a pulley 611 is rotatably connected in the outer shell 610, the pulley 611 is located below the second contact block 603, and the outer shell 610 is provided with a hole through which a steel rope 609 penetrates.

The first correction component comprises a semicircular extension wall 7, the extension wall 7 is fixedly connected with the outer wall of the clamping sleeve 302, one end, close to the first correction groove 303, of the extension wall 7 is fixedly connected with a first correction column 701, the first correction column 701 is connected in the first correction groove 303 in a sliding and clamping mode, and the opposite end faces of the first correction groove 303 and the first correction column 701 are fixedly connected with first magnets 702.

Specifically, the method comprises the following steps: referring to fig. 13, 14, and 15, first: when the two second clamping sleeves 3 move in the horizontal section range of the guide frame 607, the two first magnets 702 are mutually adsorbed, so that the position of the first correction column 701 can be stabilized, the first correction column 701 cannot slip from the first correction groove 303, that is, the clamping sleeve 302 cannot slip out from the circumferential port of the insertion groove 301, wherein the first correction column 701 is slidably clamped in the first correction groove 303, and the clamping sleeve 302 cannot slip out from the axial port of the insertion groove 301;

secondly, the method comprises the following steps: after the pipeline welding work is finished, the driving assembly controls the clamping sleeve 302 to complete one-circle rotation along the axis of the pipeline, then the driving assembly stops running, the clamping sleeve 302 loses the transmission effect, the position of the clamping sleeve 302 is almost the same as the position before one-circle rotation, the clamping sleeve 302 can be effectively reset in the embedded groove 301 under the action of the magnetic force of the two first magnets 702, and then the two second clamping sleeves 3 are controlled to move back;

in the process of moving back, the cutting ferrule 302 firstly passes through the horizontal section of the guide frame 607, the cutting ferrule 302 is stably adsorbed by magnetic force in the process, and along with the continuous movement back, the plurality of limiting plates 606 reset under the action of the inclined section of the guide frame 607 so as to block the port of the embedded groove 301 again, so that the cutting ferrule 302 can be stably positioned in the embedded groove 301 when the cutting ferrule is idle, and can adapt to collision of different degrees.

Two mounting brackets 8 of fixedly connected with on the cutting ferrule 302 periphery wall, all be connected with pivot 801 on every mounting bracket 8 in the rotation, all fixedly connected with drive gear 802 on the pivot 801, second correction groove 803 has been seted up on the extension wall 7, it has the second correction subassembly to link in the second correction groove 803, the second correction subassembly includes second correction post 804, semicircular pinion rack 805, pinion rack 805 periphery wall and internal perisporium all have the driving tooth, pinion rack 805 one end and second correction post 804 fixed connection, second correction post 804 and second correction groove 803 slip joint, second correction post 804 and the equal fixedly connected with second magnet 806 of terminal surface that second correction groove 803 is opposite, the pinion rack 805 links to each other with drive assembly, in this setting, when two pinion rack 805 fold, the driving tooth of pinion rack 805 periphery is used for with drive assembly transmission, and the internal periphery of pinion rack 805 is used for lasting drive two drive gear 802 and carry out the rotation, thereby realize the high-speed rotation of two pivot 805, wherein the second correction post 804, second correction groove 803 and second magnet correction post 804 and the second magnet correction post 701 and the first magnet correction post 801 and the characteristic structure 701 are no longer the same here, the same 702.

The outer peripheral walls of the two rotating shafts 801 are respectively sleeved with a cleaning sleeve and a polishing sleeve.

The drive assembly comprises an arched plate 9, a rotating motor 901 and a reduction gearbox 902, the arched plate 9 and the rotating motor 901 are respectively and fixedly connected with the second clamping sleeve 3, a first rotating gear 903 and a second rotating gear 904 are fixedly connected to an output shaft of the rotating motor 901 in sequence, the first rotating gear 903 is meshed with a toothed plate 805 and is connected with the toothed plate 904, the second rotating gear 904 is meshed with the toothed plate 304 and is connected with the toothed plate 304, and the rotating motor 901 is used for driving the toothed plate 304 to rotate through the second rotating gear 904, so that the clamping sleeve 302 rotates.

The reduction gear box 902 is located between the first rotating gear 903 and the second rotating gear 904, and the output shaft of the rotating electrical machine 901 passes through the reduction gear box 902, and the reduction gear box 902 is fixedly connected to the arcuate plate 9.

Specifically, the method comprises the following steps: in the welding process, when the rotary motor 901 drives the ferrule 302 to rotate through the second rotary gear 904, the first rotary gear 903 can drive the two folded toothed plates 805 to rotate along the periphery of the pipeline, so that the two rotating shafts 801 rotate at a high speed, the rotary motor 901 is in a high-speed rotating state, and the rotating speed of the second rotary gear 904 is greatly reduced through the reduction gear box 902, so that the stable operation of the welding work is ensured;

it can be understood that, when automatic welder carries out the welded to the pipeline, high-speed rotatory pivot 801 can drive clean cover and clean the gap department of two pipelines, reduce impurity, improve welding quality, and high-speed rotatory cover of polishing can polish to the welding seam that welds well levelly and smoothly, thereby be convenient for follow-up welding seam is sealed, the going on of rust-resistant work, it is clean, welding and polishing work all handle the pipeline through machining mouth 4, and machining mouth 4 is along with cutting ferrule 302 carries out rotatoryly in step along the pipeline periphery.

The working principle is as follows: in the butt joint process of the pipeline, firstly, a hanger 1 is conveyed to the position near the pipeline through a crane, then a first bidirectional screw rod assembly and a second bidirectional screw rod assembly are started simultaneously, two first clamping sleeves 2 move oppositely to clamp and fix one end of the pipeline, meanwhile, the second clamping sleeves 3 move oppositely until the two second clamping sleeves 3 are folded together to form a circle, so that the other end of the pipeline is clamped and fixed, meanwhile, a clamping sleeve 302 is synchronously folded along with the folding action of the second clamping sleeves 3, and then the pipeline is hoisted to a pipeline butt joint area;

then, welding is carried out, the rack 304 is driven by the driving assembly, so that the two folded cutting sleeves 302 rotate along the axis of the pipeline, the two cutting sleeves 302 drive the automatic welding gun on the mounting block 401 to rotate along the axis of the pipeline, the automatic welding gun can carry out welding on the joint between the two pipelines along the machining port 4, the welding can be finished without rotating the pipeline, and the welding is accurate, efficient and convenient;

after the pipeline welding work is finished, the driving assembly controls the clamping sleeve 302 to complete one-circle rotation along the axis of the pipeline at the moment, then the driving assembly stops running, at the moment, the clamping sleeve 302 loses the transmission effect, the position of the clamping sleeve 302 is almost the same as the position before one-circle rotation, under the action of the magnetic force of the two first magnets 702, the clamping sleeve 302 can be effectively reset in the embedded groove 301, then the two second clamping sleeves 3 are controlled to move backwards, at the moment, the second clamping sleeves 3 firstly pass through the horizontal section of the guide frame 607, the clamping sleeve 302 is stably adsorbed by the magnetic force in the process, and along with the continuation of the backward movement, the limiting plates 606 are reset under the action of the inclined section of the guide frame 607, so that the port of the embedded groove 301 is blocked again, and when the pipeline welding device is idle, the clamping sleeve 302 can be stably located in the embedded groove 301 and can adapt to different degrees of collision.

The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a welding set of large-scale petrochemical equipment hoist, includes gallows (1), automatic welder, its characterized in that: the bottom of the hanger (1) is symmetrically and fixedly connected with a first mounting plate (101) and a second mounting plate (102), the bottoms of the first mounting plate (101) and the second mounting plate (102) are respectively provided with a first clamping assembly and a second clamping assembly, the first clamping assembly comprises a first bidirectional screw rod assembly and two semicircular first clamping sleeves (2), the two first clamping sleeves (2) are driven by the first bidirectional screw rod assembly, the second clamping assembly comprises a second bidirectional screw rod assembly and two semicircular second clamping sleeves (3), the two second clamping sleeves (3) are driven by the second bidirectional screw rod assembly, one end of each second clamping sleeve (3) is provided with an embedded groove (301), a semicircular clamping sleeve (302) is embedded and connected in the embedded groove (301), the peripheral wall of each clamping sleeve (302) is provided with a first correcting groove (303), the first correcting assembly is connected with the first correcting groove (303), the two semicircular clamping sleeves (304) are fixedly connected with the second rack clamping assemblies, one of the two clamping sleeves (3) is provided with a second driving rack clamping sleeve (304), and one of the two clamping sleeves (3) is used for processing the second rack clamping sleeve (3), an installation block (401) is fixedly connected to the outer peripheral wall of the second clamping sleeve (3), and the installation block (401) is used for installing an automatic welding gun;

each limiting component comprises a first mounting groove (6) and a second mounting groove (601), the first mounting groove (6) is vertically fixed at the top end of the second clamping sleeve (3), the second mounting groove (601) is vertically fixed at the bottom end of the second clamping sleeve (3), a first contact block (602) and a second contact block (603) are respectively embedded and connected in the first mounting groove (6) and the second mounting groove (601), a first spring (604) is connected between the first mounting groove (6) and the first contact block (602), a second spring (605) is connected between the second mounting groove (601) and the second contact block (603), a limiting plate (606) is fixedly connected to one side of each of the first contact block (602) and the second contact block (603), a guide frame (607) is fixedly connected to the bottom of the second mounting plate (102), the top of each first contact block (602) is in sliding contact with the guide frame (607), a rope opening (608) is formed in the first mounting groove (6), and the second contact block (602) is connected with the second contact block (603) through a steel rope cable (607);

the guide frame (607) is composed of a horizontal section in the middle and inclined sections at two sides;

still fixedly connected with shell (610) on the second centre gripping cover (3) outer wall, swivelling joint has pulley (611) in shell (610), pulley (611) are in the below of second counterblock (603), just shell (610) have the hole that supplies steel cable (609) to run through.

2. The welding device for the large-scale petrochemical equipment hanger according to claim 1, wherein: the first bidirectional screw rod assembly is consistent with the second bidirectional screw rod assembly in structure, the first bidirectional screw rod assembly comprises two support plates (5) which are symmetrically arranged, the top of each support plate (5) is fixedly connected with the bottom of the first mounting plate (101), the support plates (5) are rotatably connected with bidirectional screw rods (501), one of the support plates (5) is fixedly connected with a driving motor (502), an output shaft of the driving motor (502) is fixedly connected with the bidirectional screw rods (501), the bidirectional screw rods (501) are provided with two screw rod sleeves (503), the two screw rod sleeves (503) are symmetrically arranged on the bidirectional screw rods (501), the bottoms of the screw rod sleeves (503) are fixedly connected with connecting plates (504), and the bottoms of the connecting plates (504) are fixedly connected with first clamping sleeves (2).

3. The welding device for the large-scale petrochemical equipment hanger according to claim 1, wherein: the first correction assembly comprises a semicircular extension wall (7), the extension wall (7) is fixedly connected with the outer wall of the clamping sleeve (302), one end, close to the first correction groove (303), of the extension wall (7) is fixedly connected with a first correction column (701), the first correction column (701) is clamped in the first correction groove (303) in a sliding mode, and the opposite end faces of the first correction groove (303) and the first correction column (701) are fixedly connected with first magnets (702).

4. The welding device for the large-scale petrochemical equipment hanger according to claim 3, wherein: two mounting brackets (8) of fixedly connected with on cutting ferrule (302) the periphery wall, every all rotate on mounting bracket (8) and be connected with pivot (801), equal fixedly connected with drive gear (802) on pivot (801), second correction groove (803) have been seted up on extension wall (7), even there is the second in second correction groove (803) to correct the subassembly, the second is corrected the subassembly and is included second correction post (804), semicircular pinion rack (805), pinion rack (805) periphery wall and internal perisporium all have the driving tooth, pinion rack (805) one end with second correction post (804) fixed connection, second correction post (804) with second correction groove (803) slip joint, second correction post (804) with second correction groove (803) the equal fixedly connected with in terminal surface in opposite directions second magnet (806), pinion rack (805) with drive assembly links to each other.

5. The welding device for the large petrochemical equipment hanger according to claim 4, wherein: two the clean cover and the cover of polishing have cup jointed respectively on the pivot (801) periphery wall.

6. The welding device for the large petrochemical equipment hanger according to claim 4, wherein: the driving assembly comprises an arched plate (9), a rotating motor (901) and a reduction gearbox (902), the arched plate (9) and the rotating motor (901) are respectively and fixedly connected with the second clamping sleeve (3), an output shaft of the rotating motor (901) is sequentially and fixedly connected with a first rotating gear (903) and a second rotating gear (904), the first rotating gear (903) is meshed with the toothed plate (805) and is connected with the second rotating gear (904) in a meshed mode, and the second rotating gear (904) is meshed with the toothed rack (304) and is connected with the toothed plate (805).

7. The welding device for the large-scale petrochemical equipment hanger according to claim 6, wherein: the reduction gear box (902) is arranged between the first rotating gear (903) and the second rotating gear (904), the output shaft of the rotating motor (901) penetrates through the reduction gear box (902), and the reduction gear box (902) is fixedly connected with the cambered plate (9).