CN206550474U - A kind of seal-weld built-up welding maintenance unit - Google Patents

Abstract

The utility model provides a kind of seal-weld built-up welding maintenance unit, including with installation pedestal, clamp system, rotating mechanism and the welding module for housing inner chamber；There is up/down perforation and the installation groove for being penetrated for seal-weld carrier, installation pedestal has the rotating mechanism fixed disk for being located at and housing at the lower end of inner chamber in installation pedestal；Clamp system is located in the collecting inner chamber of installation pedestal and with two symmetrically arranged clamping stirrups, two clamping stirrups can be moved towards along the radial direction of seal-weld carrier, the periphery for installation pedestal to be fixed on to seal-weld carrier；Rotating mechanism be arranged on rotating mechanism fixed disk lower surface on and with can along seal-weld carrier the welding campaign fixed disk rotated in a circumferential direction；Welding module is installed on welding motion fixed disk and with weld assembly and wire feed nozzle assembly.The application can realize automatic surfacing operation, and the simple to operate, set-up time is short, built-up welding maintenance time shortens, and substantially reduces the maintenance activity cost of seal-weld.

Description

A kind of seal-weld built-up welding maintenance unit

Technical field

The utility model is related to the welding, built-up welding and maintenance field of seal-weld, more particularly to a kind of to be used for nuclear power station The seal-weld built-up welding maintenance unit of CRDM (CRDM).

Background technology

CRDM (hereinafter referred to as CRDM) is the servo control mechanism of reactor control and safety system, its work( Can be the instruction according to reactor control and protection system, drive control rod assembly keeps control rod in the upper and lower motion of heap in-core Component completes reactor start-up, regulation power, keeps power, safe shutdown and breakdown in command altitude or power-off scram, Its safety and reliability directly influences safety and the operation of reactor.Multiple controls are dispersed with top cover of reactor pressure vessel Rod drive mechanism processed, in order to realize the connection between reactor lid and each part, is provided with multiple-sealed weldering from top to bottom Seam, different heap-type are otherwise varied.Seal-weld is mainly distributed on the stroke sleeve pipe and pressure hull of reactor pressure vessel, is risen Sealing function, is not allow for any leakage in the full phase in longevity, but according to domestic and international nuclear power engineering operating experience, CRDM sealing is welded It is the higher failure of the frequency that incident of leakage, which occurs, in seam.The boric acid water of seal-weld leakage can be to causing corrosion broken near leakage position It is bad, or even corrosion top cover causes to extend through, this will seriously endanger the safe operation of nuclear power station, and even nuclear safety accident is lured Cause, if seal-weld field maintenance technology can be grasped, is repaired to seal-weld in time, then is remarkably improved power station operation Efficiency and reliability.

Leak and repair for nuclear power station CRDM seal-welds, mainly there is maintenance technique for overlaying and the France in the U.S. in the world CRDM integral replacing technology two schemes.U.S.'s maintenance technique for overlaying is to retain the basis of original CRDM components and its seal-weld Upper overall built-up welding, compared to the CRDM integral replacing technologies of France, its engineering reliability is good, maintenance cycle is relatively short, economy Property is relatively preferable, but maintenance of equipment is complicated in the technology, and size is big, technology controlling and process is cumbersome, and maintenance cost is high.At present, When such seal-weld leakage failure occurs in the country, the maintenance of seal-weld highly relies on external import, and not only expense is quite held high It is expensive, and maintenance cycle is longer, has a strong impact on the operational efficiency of nuclear power station.

Utility model content

The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of seal-weld built-up welding dimension Device is repaiied, it is applied to welding at the scene, built-up welding and maintenance seal-weld, substantially reduces operating cost.

To achieve the above object, the utility model provides a kind of seal-weld built-up welding maintenance unit, including interior with housing Installation pedestal, clamp system, rotating mechanism and the welding module of chamber；There is up/down perforation in the installation pedestal and be used for The installation groove penetrated for seal-weld carrier, the collecting inner chamber is connected with installing groove, and the installation pedestal has position Rotating mechanism fixed disk at collecting inner chamber lower end；The clamp system is located in the collecting inner chamber of installation pedestal and had Two symmetrically arranged clamping stirrups, two clamping stirrups can be moved towards along the radial direction of seal-weld carrier, for that will install Pedestal is fixed on the periphery of seal-weld carrier；The rotating mechanism is arranged on the lower surface of rotating mechanism fixed disk and had Have can along seal-weld carrier the welding campaign fixed disk rotated in a circumferential direction；The welding module is installed on welding motion and fixed Disk simultaneously has weld assembly and wire feed nozzle assembly.

Further, the installation pedestal also includes tubular shell body and is installed in the upper cover plate of shell body upper end, The rotating mechanism fixed disk is installed on the lower end of shell body, the upper surface of the upper cover plate and is installed with least one hanger, The collecting inner chamber is surrounded by upper cover plate, shell body and rotating mechanism fixed disk, it is described install groove be located at shell body inner side, And run through upper cover plate and rotating mechanism fixed disk up and down.

Preferably, the upper guide pad for being fixed on upper cover plate is additionally provided with the collecting inner chamber of the installation pedestal and is fixed Offered in the lower guide pad of rotating mechanism fixed disk, the upper guide pad in the upper pilot hole of up/down perforation, lower guide pad The lower pilot hole of up/down perforation is offered, the upper pilot hole, lower pilot hole and installation groove are coaxially disposed and mutually interconnected It is logical.

Preferably, the upper guide pad is at the lower end of upper pilot hole and lower guide pad is at the lower end of lower pilot hole It is designed with chamfered section.

Further, the clamp system include two pieces of arc installing plates for being located at two clamping stirrup outer circumferential sides respectively, Two clampings being located at respectively at clamping stirrup both sides drive leading screw and are fixed on the clamping motor component of arc installing plate, Two pieces of arc installing plates are all fixed on the upper surface of rotating mechanism fixed disk, and two clamp driving leading screw two ends and all pass through bearing It is rotatably supported in two pieces of arc installing plates, is all fixed with the both sides of two clamping stirrups and clamps driving with two respectively The clamping drive nut that leading screw is engaged；Two clamp in driving leading screw, and one clamps driving leading screw and driven by clamping motor component It is dynamic to rotate, and the root clamp driving leading screw clamped by the first gear unit with another drive leading screw to be connected, drive it is another Root clamps driving screw synchronous and rotated.

Preferably, be installed with a plurality of elastic compression plate on the inner peripheral surface of each clamping stirrup, elastic compression plate be used for and The outer peripheral face of seal-weld carrier is in contact.

Preferably, at least one guide rod that leading screw is driven parallel to clamping is installed between two pieces of arc installing plates, each The guide sleeve being engaged with guide rod is all installed with clamping stirrup.

Further, the rotating mechanism includes being fixed on the electric rotating machine component of rotating mechanism fixed disk, by electric rotating Thermomechanical components drive the lower transmissioning gear rotated, the internal tooth annular slide track with interior Tooth Surface, mutually fixed with internal tooth annular slide track Ring-shaped guide rail slider disc, be fixed on rotating mechanism fixed disk lower surface ring-shaped guide rail fixed disk and multiple circumferences it is uniform V groove bearings on ring-shaped guide rail fixed disk, the lower transmissioning gear is meshed with the interior Tooth Surface of internal tooth annular slide track；Institute Stating the periphery of internal tooth annular slide track has V-type orbit portion, and the periphery of each V groove bearings has V-groove, and the internal tooth annular is sliding The V-type orbit portion in road is engaged with the V-groove of multiple V groove bearings, and the welding motion fixed disk is slided installed in ring-shaped guide rail On the lower surface of disk.

Further, in addition to welding motion module, the welding motion module, which includes having, first moves radially portion Radiai adjustment mechanism, the radial movement mechanism for moving radially with second portion, the axial motion mechanism with axial movement portion, with And the rotating mechanism with rotation section, the radiai adjustment mechanism is by welding motion fixed block installed in welding motion fixed disk Lower surface on, described first moves radially portion can moving radially and mutually solid with radial movement mechanism along seal-weld carrier Fixed, described second moves radially portion can moving radially and mutually being fixed with axial motion mechanism, the axle along seal-weld carrier To move portion can along seal-weld carrier axial movement and mutually fixed with rotating mechanism, the rotation section and axial movement portion Perpendicular, the welding module is mutually fixed with rotation section.

Preferably, the radiai adjustment mechanism includes being fixed on the welding campaign connecting plate of welding motion fixed block, opened up The radial direction dovetail groove on connecting plate and the radial direction dovetail guide being fixed in radial movement mechanism, the footpath are moved in welding It is engaged to dovetail groove and radial direction dovetail guide and parallel all with the radial direction of seal-weld carrier, the welding motion connection Plate is removably connected with briquetting in the lower end of radial direction dovetail groove, and the radial direction dovetail guide forms described first and moves radially portion.

Further, the radial movement mechanism includes being fixed on the first radial motion pedestal for moving radially portion, along close Soldering and sealing seam carrier radially extend radial motion driving leading screw, be fixed with radial motion nut radial direction nut bearing and Radial motor component on radial motion pedestal, the radial motor Component driver radial motion driving leading screw is rotated, The two ends of the radial motion driving leading screw are all rotatably supported in by bearing in radial motion pedestal and radial motion is driven Dynamic leading screw is engaged with radial motion nut, and the radial direction nut bearing is by being axially moved connecting plate and axial motion mechanism phase Connect, form described second and move radially portion.

Preferably, the radial movement mechanism also includes radial guidance sliding block, the Yi Jiping for being fixed on radial direction nut bearing Row drives the radial alignment guide rail of leading screw in radial motion, and the two ends of the radial alignment guide rail are fixed on radial motion pedestal In, the radial guidance sliding block is engaged with radial alignment guide rail.

Further, the axial motion mechanism include being fixed on the second axial movement pedestal for moving radially portion, with it is close Soldering and sealing seam carrier axially parallel axial movement driving leading screw, be fixed with the axial nut bearing that is axially moved nut and Installed in the axial direction electric machine component being axially moved on pedestal, the axial direction electric machine Component driver is axially moved driving leading screw and rotated, The two ends of driving leading screw that are axially moved all are rotatably supported in axial movement pedestal by bearing and are axially moved drive Dynamic leading screw is engaged with being axially moved nut, and the axial nut bearing passes through rotational motion connecting plate and axial motion mechanism phase Connect, form the axial movement portion.

Preferably, the axial motion mechanism also includes axial guidance sliding block, the Yi Jiping for being fixed on axial nut bearing Row is in the axial line slideway for being axially moved driving leading screw, and the two ends of the axial line slideway are fixed on axial movement pedestal In, the axial guidance sliding block is engaged with axial line slideway.

Further, the rotating mechanism include be fixedly connected with axial movement portion rotary electric machine fixed seat, be installed on The rotary electric machine component and rolling bearing overcoat of rotary electric machine fixed seat and the rotating core rotated by rotary electric machine Component driver Axle, the rotation mandrel is rotatably supported in rolling bearing overcoat by bearing, and the rotation mandrel is away from rotary electric machine One end of component is connected with welding module by welding module supporting plate, forms the rotation section.

Further, the welding module includes welding module supporting plate, welding wire rotation regulation fixed seat, welding wire rotation tune Locking nub and welding wire adjustment mechanism connecting plate, the weld assembly are arranged in welding module supporting plate, the wire feed nozzle assembly Installed in welding wire adjustment mechanism connecting plate, the welding wire rotates regulation fixed seat and is arranged on weld assembly, and the welding wire is rotated It is to be rotatably assorted, can be relatively rotated between the two around the axis of weld assembly that regulating block, which rotates with welding wire and adjusts fixed seat, described Welding wire adjustment mechanism connecting plate and welding wire rotate regulating block for it is mobile coordinate, between the two can along weld assembly axially opposing shifting It is dynamic.

Preferably, the welding wire rotates the two ends of regulation fixed seat provided with the lug for being located at welding wire rotation regulating block both sides Arc adjustment hole and turn hole are designed with portion, each lug portions, the two ends that the welding wire rotates regulating block are respectively equipped with shaft, The shaft that welding wire rotates regulating block two ends is engaged with the turn hole at welding wire rotation regulation fixed seat two ends, constitutes rotation fortune respectively Dynamic, the lug portions rotate regulating block with welding wire and are detachably connected by the screw being located in arc adjustment hole.

Preferably, the welding wire rotates the axially in parallel welding wire regulation dovetail offered on regulating block with weld assembly Groove, the welding wire adjustment mechanism connecting plate is provided with the axially in parallel welding wire regulation dovetail guide with weld assembly, the weldering Silk regulation dovetail guide is engaged with welding wire regulation dovetail groove.

Preferably, welding video monitoring component and temperature sensor are installed on the welding wire adjustment mechanism connecting plate.

Further, two axle welding wire adjustment mechanisms are also equipped with the welding wire adjustment mechanism connecting plate, two axle welding wires are adjusted The output end of complete machine structure is connected with welding wire adjustment and performs block, and welding wire adjustment performs block can be along the axial direction shifting parallel to weld assembly Move and along the axial movement perpendicular to weld assembly, the welding wire adjustment, which is performed, is provided with welding wire adjustment contiguous block, weldering on block Ignition tip mounting blocks are installed on silk adjustment contiguous block, the wire feed nozzle assembly is fixed on ignition tip mounting blocks.

Further, the two axles welding wire adjustment mechanism includes the welding wire adjustment installing plate and welding wire of two pieces of parallel arrangements The axial direction of component it is parallel it is parallel to driving leading screw and vertical to gear shaft, with parallel to driving what leading screw was engaged to put down Row to nut guide pad, with the axial direction of welding wire component it is perpendicular it is vertical to driving circular rack and be fixed on welding wire adjustment pacify Parallel to electric machine assembly and vertical to electric machine assembly on dress plate, two pieces of welding wires adjustment installing plates are all fixed on welding wire adjustment mechanism Connecting plate, it is described it is parallel to driving leading screw two ends and vertically all rotatably supported to the two ends of gear shaft by copper sheathing In two pieces of welding wires adjustment installing plate, it is described it is parallel rotated to driving leading screw from parallel driven to electric machine assembly, it is described it is vertical to Gear shaft is rotated from vertically being driven to electric machine assembly, and sliding eye is offered in the parallel guide pad to nut, described to hang down It is straight to be movably located in the parallel sliding eye to nut guide pad and with vertical to gear shaft phase to driving circular rack Engagement, the welding wire adjustment performs block and is fixed on vertical one end to driving circular rack.

Preferably, the vertical other end to driving circular rack is fixed with welding wire adjustment limited block, the welding wire adjustment Perform block and welding wire adjustment limited block is all located at the outside of sliding eye.

Further, the welding module also includes the wire feeding disc and wire feed being arranged on welding motion fixed disk lower surface Machine, the wire feed nozzle assembly is connected by wire-feeding pipe with wire-feed motor, and the wire-feed motor, which is used to convey, to be installed on wire feeding disc Welding wire.

Preferably, range sensor is installed on the lower surface of the welding motion fixed disk.

Further, the periphery of the welding motion fixed disk is installed with prominent mounting blocks, is fixed with the mounting blocks Extend up and down and walk line bracket positioned at installation pedestal outer circumferential side, the lower surface of the welding campaign fixed disk is provided with cable Fixed block.

As described above, the seal-weld built-up welding maintenance unit that the utility model is related to, has the advantages that：

The application can be integrally fixed to clamp device in seal-weld carrier (such as CRDM strokes sleeve pipe by clamp system Outer wall or pressure hull outer wall) on, welding module can be automatically positioned by the welding campaign fixed disk of rotating mechanism by sealing weldering At seam, realize automatic surfacing operation, it is adaptable to the Site Welding maintenance activity of the nuclear power station CRDM seal-welds of different heap-type and Operation is welded to connect before labour；And the application is simple to operate, the set-up time is short, built-up welding maintenance time and labour preceding weld interval effectively contract It is short, so as to greatly shorten the maintenance cycle of seal-weld, the operational efficiency of nuclear power station is effectively improved, and substantially reduce seal-weld Maintenance and labour before weld job cost.

Brief description of the drawings

Fig. 1 is the structural representation for the seal-weld built-up welding maintenance unit that the application is related to.

Fig. 2 is the connection diagram of welding module and rotating mechanism in the application.

Fig. 3 is the connection diagram of clamp system and rotating mechanism and rotating mechanism fixed disk in the application.

Fig. 4 is the cut-away view of rotating mechanism in the application.

Fig. 5 encloses enlarged drawing for Fig. 4 A.

Fig. 6 is the structural representation of radial movement mechanism in the application.

Fig. 7 is the structural representation of axial motion mechanism in the application.

Fig. 8 is the structural representation of rotating mechanism in the application.

Fig. 9 is the use state figure for the seal-weld built-up welding maintenance unit that the application is related to.

Component label instructions

The hanger of guide pad 2 on 1

The shell body of 3 upper cover plate 4

5 walk the rotating mechanism fixed disk of line bracket 6

7 circular cowlings 8 welding motion fixed block

The 9 welding motion radial motion bases of connecting plate 10

The collateral plate of the radial support of 11 radial motion cover plate 12

13 briquettings 14 are axially moved connecting plate

15 are axially moved the axial support-side support plate of cover plate 16

17 are axially moved the axial axis end seal lid of base 18

The collateral rotational motion connecting plate of plate 20 of 19 axial restraints

The rotary electric machine fixed seat of 21 rotary electric machine cover 22

The rotation mandrel of 23 rolling bearing overcoat 24

The welding wire of 25 welding module supporting plate 26 rotates regulation fixed seat

27 welding wires rotate the arc adjustment hole of regulating block 271

28 welding wires adjust the dovetail geosynclinal block of dovetail guide 29

The temperature sensor of 30 welding video monitoring component 31

The welding wire of 32 welding wire adjustment mechanism connecting plate 33 adjusts installing plate

34 is vertical vertical to driving circular rack to electric machine assembly 35

36 welding wires adjust the wire-feeding pipe of limited block 37

38 is vertical parallel to electric machine assembly to little gear 39

40 is parallel to the installation groove of little gear 41

The adjustment of 42 welding wires laterallys secure the ignition tip mounting blocks of plate 43

44 welding wires adjust the wire feed nozzle assembly of contiguous block 45

The rotary spacing of 46 weld assembly 47 is switched

The wire feeding disc fixed plate of 48 wire feeding disc 49

The wire-feed motor of 50 cable fixed block 51

The 52 welding motion clamping motor components of fixed disk 53

The clamping stirrup of 54 arc installing plate 55

The guide sleeve of 56 elastic compression plate 57

58 guide rods 59 clamp drive nut

The synchronous cog belt of 60 synchronous pulley 61

62, which clamp driving leading screw 63, clamps spacing plectrum

64 times guide pad 65 clamps limit switch

66 clamp the limit installation V groove bearings of plate 67

The internal tooth annular slide track of 68 ring-shaped guide rail slider disc 69

The range sensor of Tooth Surface 70 in 691

The rotary stopper of 71 ring-shaped guide rail fixed disk 72 is switched

The drive gear of 73 rotary stopper plectrum 74

The electric rotating machine component of 75 electric rotating machine fixed seat 76

The 77 driving driving small pulleys of big belt wheel 78

The 79 driving clamping motor installing plates of cog belt 80

The upper transfer gear of 81 rotary gear shaft 82

The radial direction nut bearing of 83 lower transmissioning gear 84

The radial motor component of 85 radial direction little gear 86

The radially fixed collateral plate of 87 radial direction gear wheel 88

The radial alignment guide rail of 89 radial direction limit switch 90

The spacing plectrum of radial direction of 91 radial motions driving leading screw 92

The axial little gear of 93 radial guidance sliding block 94

The axial gear wheel of 95 axial direction electric machine component 96

97 are axially moved the axial limiting plectrum of nut 98

The axial guidance sliding block of 99 axial nut bearing 100

101 axial line slideways 102 are axially moved driving leading screw

103 axial limitings switch 104 rotary electric machine components

105 is parallel vertical to gear wheel to gear wheel 106

107 welding wires adjust the lateral welding wire of plate 108 adjustment and perform block

109 is vertical parallel to driving leading screw to gear shaft 110

111 is parallel to the seal-weld of nut guide pad 112

The pressure hull of 113 stroke sleeve pipe 114

115 116 liang of radial direction dovetail guide axle welding wire adjustment mechanisms

The clamp system of 117 installation pedestal 118

The welding module of 119 rotating mechanism 120

121 welding motion modules

Embodiment

Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this Content disclosed by specification understands other advantages of the present utility model and effect easily.

It should be clear that structure, ratio, size that this specification accompanying drawing is painted etc., only to coordinate in disclosed in specification Hold, so that those skilled in the art is understood with reading, be not limited to the enforceable qualifications of the utility model, therefore not Has technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influenceing this practicality new Under effect that type can be generated and the purpose that can reach, all should still fall can cover in the technology contents disclosed in the utility model In the range of.Meanwhile, the term of cited such as " on ", " under " in this specification, "left", "right", " centre " and " one ", also Only understand for ease of narration, and be not used to limit the enforceable scope of the utility model, its relativeness is altered or modified, Without under essence change technology contents, when being also considered as the enforceable category of the utility model.

The application provides a kind of seal-weld built-up welding maintenance unit, as shown in figures 1 and 3, and it, which includes having, houses inner chamber Installation pedestal 117, clamp system 118, rotating mechanism 119 and welding module 120；Have in the installation pedestal 117 upper Lower insertion and the installation groove 41 for being penetrated for seal-weld carrier, clamp system 118 and the rotating mechanism 119 quilt The installation groove 41 runs through, therefore installation pedestal 117, clamp system 118 and rotating mechanism 119 are hollow type loop configuration； Collecting inner chamber in the installation pedestal 117 is connected with installing groove 41, and installation pedestal 117 has under collecting inner chamber Rotating mechanism fixed disk 6 at end；The clamp system 118 is located in the collecting inner chamber of installation pedestal 117 and right with two Claim the clamping stirrup 55 set, two clamping stirrups 55 can be moved towards along the radial direction of seal-weld carrier, for that will install base Seat 117 is fixed on the periphery of seal-weld carrier, so that whole seal-weld built-up welding maintenance unit be fixed and sealing is positioned at On weld seam carrier；The rotating mechanism 119 is arranged on the lower surface of rotating mechanism fixed disk 6 and had can be along seal-weld The welding campaign fixed disk 52 rotated in a circumferential direction of carrier；The welding module 120 is installed on welding motion fixed disk 52 and had Welding torch in weld assembly 46 and wire feed nozzle assembly 45, weld assembly 46 is oppositely arranged with the wire feeding mouth in wire feed nozzle assembly 45.

The seal-weld built-up welding maintenance unit that the application is related to is applied to the built-up welding maintenance of various seal-welds 112 and used as a servant Before be welded to connect, in following examples, seal-weld built-up welding maintenance unit be used for nuclear power station CRDM (CRDM) in It is welded to connect before the built-up welding maintenance of seal-weld 112 and labour, therefore the seal-weld carrier is the outer of CRDM strokes sleeve pipe 113 The outer wall of wall or pressure hull 114, as shown in figure 9, the stroke sleeve pipe 113 or pressure hull 114 are into cylindric, therefore is installed Groove 41 is installed also cylindrical in pedestal 117, all there is seal-weld on the outer wall of stroke sleeve pipe 113 or pressure hull 114 112.In use, as shown in figure 9, installation pedestal 117 is fixed on the outer wall or pressure-resistant of stroke sleeve pipe 113 by clamp system 118 On the outer wall of housing 114, so that seal-weld built-up welding maintenance unit is integrally fixed to clamp into the outer wall or resistance in stroke sleeve pipe 113 The outer wall of pressure shell body 114, therefore installation pedestal 117 and clamp system 118 collectively form and fix to clamp module；Afterwards, by whirler Welding module 120 is automatically positioned at seal-weld 112 by the circumferential movement of welding motion fixed disk 52 in structure 119, then is passed through Welding module 120 realizes automatic surfacing operation.The application is applicable to showing for the nuclear power station CRDM seal-welds 112 of different heap-type Operation is welded to connect before welding maintenance activity and labour, and the application is simple to operate, the set-up time is short, built-up welding maintenance time and labour Preceding weld interval effectively shortens, so as to greatly shorten the maintenance cycle of seal-weld 112, effectively improves the operation effect of nuclear power station Rate, and substantially reduce maintenance and the preceding weld job cost of labour of seal-weld 112.

The installation pedestal 117 provides fixed and positioning function for seal-weld built-up welding maintenance unit, is seal-weld Each motion and the mounting platform of each functional module in built-up welding maintenance unit, each motion of carrying and each functional module Dynamic loading in weight and operation process.In the application, installation pedestal 117 uses following structure：As shown in figure 1, installation pedestal 117 also include cylindrical shell body 4 and are installed in the upper cover plate 3 of the upper end of shell body 4, and the shell body 4 is by four pieces of arcs Plate is spliced and is fixed at the circumferential edges of the upper end of rotating mechanism fixed disk 6；It is fixed on the upper surface of the upper cover plate 3 There is the uniform hanger 2 of four circumferences, realize the lifting of seal-weld built-up welding maintenance unit；The collecting inner chamber is by upper cover plate 3, outer Housing 4 and rotating mechanism fixed disk 6 are surrounded, and the groove 41 of installing is located at the inner side of shell body 4 and runs through upper cover plate 3 up and down With rotating mechanism fixed disk 6, therefore upper cover plate 3 and rotating mechanism fixed disk 6 in annular shape.

After seal-weld built-up welding maintenance unit is lifted by crane by four hangers 2, stroke sleeve pipe 113 or pressure-resistant is inserted in from top to bottom Housing 114；For the accuracy moved when ensureing that seal-weld built-up welding maintenance unit is installed, as shown in figures 1 and 3, the peace The upper guide pad 1 for being fixed on the lower end of upper cover plate 3, which is additionally provided with, in the collecting inner chamber for filling pedestal 117 and rotating mechanism is fixed on consolidates Offer and opened in the upper pilot hole of up/down perforation, lower guide pad 64 in the lower guide pad 64 of the upper end of price fixing 6, the upper guide pad 1 Lower pilot hole provided with up/down perforation, the upper pilot hole, lower pilot hole and installation groove 41 are coaxially disposed and mutually interconnected It is logical, play guide effect.More preferably, the upper guide pad 1 is at the lower end of upper pilot hole and lower guide pad 64 is oriented to lower Long chamfering is all machined with the lower end in hole, chamfered section is formed, therefore the opening of upper pilot hole lower end and the opening of lower pilot hole lower end All in horn-like, it is enclosed on from top to bottom on stroke sleeve pipe 113 or pressure hull 114 beneficial to seal-weld built-up welding maintenance unit.Separately Outside, the upper guide pad 1 and lower guide pad 64 are made by the less nonmetallic materials of coefficient of friction, it is ensured that not to stroke sleeve pipe 113 or the outer wall of pressure hull 114 cause damage or cut, and make guide function smooth, stably.The upper guide pad 1 is with Guide pad 64 has plurality of specifications, and upper guide pad 1 and upper cover plate 3, lower guide pad 64 and rotating mechanism fixed disk 6 all pass through screw It is detachably connected, is easy to be changed according to different maintenance objects.

Further, as shown in figure 3, two clamping stirrups 55 are using half open form (HALF types) design, the clamp system 118 are also located at clamping stirrup respectively including two pieces of arc installing plates 54 for being located at two outer circumferential sides of clamping stirrup 55 respectively, two At 55 both sides and all horizontal-extending clamping drives leading screw 62 and is fixed on the clamping motor component 53 of arc installing plate 54； Two pieces of arc installing plates 54 are to be arranged symmetrically and all by alignment pin location and installation on the upper surface of rotating mechanism fixed disk 6, The cylindrical portion and seal-weld carrier of cylindrical portion and the centre of each clamping stirrup 55 in the middle of every piece of arc installing plate 54 are coaxial Line is set；Two clamp the side that driving leading screw 62 two ends are all rotatably supported in two pieces of arc installing plates 54 by rolling bearing In interstitial hole at side；All it is fixed with the both sides of two clamping stirrups 55 and clamps what driving leading screw 62 was engaged with two respectively Drive nut 59 is clamped, driving leading screw 62 is clamped with clamping drive nut 59 and constitutes feed screw nut pair, and every clamps driving silk Thick stick 62 is with clamping the in opposite direction of the threaded engagement of drive nut 59 in two clamping stirrups 55, to realize that clamping driving leading screw 62 exists While rotation, two clamping stirrups 55 is move toward one anothers or dorsad move, so as to complete the folding fortune of two clamping stirrups 55 It is dynamic；Furthermore, two clamp in driving leading screw 62, and one clamps driving leading screw 62 and drives rotation by clamping motor component 53, and should Root clamps driving leading screw 62 and is connected by the first gear unit with another clamping driving leading screw 62, drives another to clamp drive The dynamic synchronous axial system of leading screw 62.The driving leading screw 62 that clamps is trapezoidal screw, and clamping drive nut 59 is trapezoidal nut, trapezoidal silk Thick stick has auto-lock function, it can be ensured that the clamping of seal-weld built-up welding maintenance unit in the case where clamping motor component 53 is powered off It is fixed.

More preferably, first gear unit uses following structure：As shown in figure 3, two clamp driving leading screw 62 one Synchronous pulley 60 is separately installed with end, two synchronous pulleys 60 are connected by synchronous cog belt 61 and are driven, realizes that two clamp drive The synchronous axial system of dynamic leading screw 62.The clamping motor component 53 is arranged on clamping motor installing plate 80, clamping motor installing plate 80 are arranged on one piece of arc installing plate 54, and clamping motor component 53 drives described clamp to drive leading screw by the second gear unit 62 rotate；Second gear unit uses following structure：The other end for clamping driving leading screw 62 is provided with the big band of driving Wheel 77, the motor shaft end of clamping motor component 53 is provided with driving small pulley 78, and driving small pulley 78 leads to driving big belt wheel 77 Cog belt 79 of overdriving connection transmission.Therefore, when the motor in clamping motor component 53 is rotated, by driving the He of small pulley 78 Driving cog belt 79 drives driving big belt wheel 77 to rotate, and then drives two clamping driving leading screws 62 synchronously to rotate, and passes through Clamping drive nut 59 drives two clamping stirrups 55 to move towards or dorsad move, so as to realize that clamp system 118 is automatic right Middle clamping or the action unclamped.

Preferably, driven as shown in figure 3, being all installed with two between the both sides of two pieces of arc installing plates 54 parallel to clamping The guide rod 58 of leading screw 62, at the side of every piece of arc installing plate 54, two guide rods 58 are located at respectively clamps driving leading screw 62 Upper side and lower side, each both sides of clamping stirrup 55 are installed with the guide sleeve 57 being engaged with guide rod 58, so as to clamp The axial movement that clip 55 drives leading screw 62 along clamping provides guide effect.Every piece of arc installing plate 54 is the two of its cylindrical portion Side, each clamping stirrup 55 are designed with being in flat supporting part, the supporting part of arc installing plate 54 in the both sides of its cylindrical portion Driving leading screw 62 and guide rod 58 are clamped for supporting, the supporting part of clamping stirrup 55, which is used to install, to be clamped drive nut 59 and be oriented to Set 57.The elastic compression plate 56 of a plurality of extension up and down is installed with the inner peripheral surface of each intermediate cylindrical portion of clamping stirrup 55, when After clamping stirrup 55 is clamped on seal-weld carrier, the outer peripheral face of elastic compression plate 56 and seal-weld carrier is in contact, therefore Clamping stirrup 55 is locked by elastic compression plate 56 to the outer wall of stroke sleeve pipe 113 or pressure hull 114, and coupling mechanism force is equal Even, stress surface is big, and firm grip is reliable, and can prevent that clamping stirrup 55 from damaging the outer of stroke sleeve pipe 113 or pressure hull 114 Wall.Clamping stirrup 55 is detachably connected with arc installing plate 54 also by screw, and clamping stirrup 55 is configured with plurality of specifications, can root Changed according to different maintenance objects.Also it is installed with the upper surface of the rotating mechanism fixed disk 6 positioned at two folders Plate 66 is mounted in the clamping in the tight outside of clip 55, clamps limit installation plate 66 and is located between two pieces of arc installing plates 54, clamps Plate 66 is mounted clamping limit switch 65, two are respectively arranged with the two ends of a side end face of clamping stirrup 55 at it Clamping stirrup 55 is mounted on a side end face of plate 66 towards clamping and is respectively arranged with the spacing plectrum 63 of clamping, passes through and clamps limit Position plectrum 63 and the electric limit that can be achieved when two clamping stirrups 55 carry out open and close movement that cooperates for clamping limit switch 65 Position, improves control accuracy.

Further, the rotating mechanism 119 is located at the lower section of clamp system 118, for erecting and welding module 120 and Following welding motion modules 121, is that built-up welding operation or Precision Machining operation are provided along the circumferencial direction of seal-weld carrier Motion.As shown in Figures 3 to 5, rotating mechanism 119 includes being fixed on the electric rotating machine component 76 of rotating mechanism fixed disk 6, by revolving Lower transmissioning gear 83, internal tooth annular slide track 69 and internal gear with interior Tooth Surface 691 that the driving of rotating motor component 76 is rotated Ring-shaped guide rail slider disc 68 that shape slideway 69 is mutually fixed, the ring-shaped guide rail fixed disk for being fixed on the lower surface of rotating mechanism fixed disk 6 71 and multiple circumferences be distributed on the V groove bearings 67 of the lower end of ring-shaped guide rail fixed disk 71, the lower transmissioning gear 83 and internal gear The interior Tooth Surface 691 of shape slideway 69 is meshed, constitutes gear driving pair；The periphery of the internal tooth annular slide track 69 has in circle The V-type orbit portion of annular, the periphery of each V groove bearings 67 has V-groove, the V-type orbit portion of the internal tooth annular slide track 69 It is engaged with the V-groove of multiple V groove bearings 67, constitutes sliding pair, multiple V groove bearings 67 carries for the rotation of internal tooth annular slide track 69 For being oriented to；The welding motion fixed disk 52 is arranged on the lower surface of ring-shaped guide rail slider disc 68；Therefore, whole rotating mechanism 119 are arranged on the lower section of rotating mechanism fixed disk 6 by ring-shaped guide rail fixed disk 71.Preferably, welding motion fixed disk 52 with Ring-shaped guide rail slider disc 68 is detachably connected by multiple screws, and fast quick-detach and replacing can be achieved.

The electric rotating machine component 76 is arranged on the upper surface of rotating mechanism fixed disk 6 by electric rotating machine fixed seat 75 On, electric rotating machine component 76 drives lower transmissioning gear 83 to rotate by the 3rd gear unit, the concrete structure of the 3rd gear unit For：As shown in Figure 4 and Figure 5, the 3rd gear unit include extend up and down rotary gear shaft 81, be fixed on the upper end of rotary gear shaft 81 Travelling gear 82 and the drive gear 74 being fixed on the motor output shaft of electric rotating machine component 76, the lower transmissioning gear 83 are fixed on the lower end of rotary gear shaft 81, and rotary gear shaft 81 is installed in rotation on rotating mechanism by bearing, bearing (ball) cover etc. In fixed disk 6, the drive gear 74 is meshed with upper transfer gear 82, constitutes gear driving pair.When electric rotating machine component 76 During rotation, drive gear 74 is driven synchronously to rotate, so as to drive upper transfer gear 82, rotary gear shaft 81 and lower transmissioning gear 83 Three rotates, then is meshed driving internal tooth annular by the interior Tooth Surface 691 of lower transmissioning gear 83 and internal tooth annular slide track 69 Slideway 69 is rotated, finally realize internal tooth annular slide track 69 drive ring-shaped guide rail slider disc 68, it is welding motion fixed disk 52, following Weld the motion of the circumferencial direction of motion module 121 and welding module 120 along seal-weld carrier.The internal tooth annular is sliding Road 69 can provide higher load-carrying ability, life-span and rigidity.Preferably, as shown in figure 3, the lower end of ring-shaped guide rail fixed disk 71 Face is being provided with rotary stopper switch 72 at its outward flange side, and the upper surface of welding motion fixed disk 52 is outside it Rotary stopper plectrum 73 is installed, the mutual cooperation for switching the spacing plectrum 73 of 72 chord turn by rotary stopper can be achieved at edge side The alarm of rotating mechanism 119 is spacing and school zero.

Further, as shown in figure 1, the outward flange side of the welding motion fixed disk 52 is installed with prominent mounting blocks, It is fixed with the mounting blocks and extends up and down and walk line bracket 5, welding motion fixed disk 52 positioned at the outer circumferential side of installation pedestal 117 Lower surface cable fixed block 50 is installed, walk line bracket 5 be used for seal-weld built-up welding maintenance unit in cable cabling, cable Fixed block 50 is used for the fixation of cable in seal-weld built-up welding maintenance unit, so as to avoid seal-weld built-up welding maintenance unit from making Cable winds during industry.Furthermore, range sensor 70 is installed on the lower surface of welding motion fixed disk 52, for seal-weld heap Weld height and position detection when maintenance unit is installed.Meanwhile, rotating mechanism 119 also includes being located at the periphery of ring-shaped guide rail fixed disk 71 The circular cowling 7 of side, the circular cowling 7 is fixed on the lower end of rotating mechanism fixed disk 6, for preventing external debris or dust etc. from entering In the parts such as internal tooth annular slide track 69, ring-shaped guide rail slider disc 68, it is ensured that the accuracy that rotating mechanism 119 is moved.

Further, the seal-weld built-up welding maintenance unit also includes welding motion module 121, as shown in figure 1, described Welding motion module 121 includes having first to move radially the radiai adjustment mechanism in portion, with the second radial direction for moving radially portion Motion, the axial motion mechanism with axial movement portion and the rotating mechanism with rotation section, the radiai adjustment machine Structure is arranged on the lower surface of welding motion fixed disk 52 by welding motion fixed block 8, so that motion module will be welded entirely 121 are arranged on the lower end of welding motion fixed disk 52；Described first move radially portion can along the moving radially of seal-weld carrier, And mutually fixed with radial movement mechanism；Described second move radially portion can along seal-weld carrier move radially and with axial direction Motion is mutually fixed；The axial movement portion can along seal-weld carrier axial movement and mutually fixed with rotating mechanism；Institute State rotation section and axial movement portion perpendicular, the welding module 120 is mutually fixed with rotation section.In the welding motion module 121, Radiai adjustment mechanism is used for the position in seal-weld carrier radially in a wide range of interior regulation welding module 120, so as to coordinate Adapt to the seal-weld carrier of various outer diameter；Radial movement mechanism is used to weld in sealing in a small range regulation welding module 120 The position of carrier radially is stitched, axial motion mechanism is used to adjust welding module 120 in seal-weld carrier shaft in a small range Upward position, radial movement mechanism and axial motion mechanism, which are engaged, realizes being accurately positioned for welding module 120；Rotating mechanism Inclination angle for adjusting welding module 120.The preferred embodiment for welding the Zhong Ge mechanisms of motion module 121 is as follows.

As shown in figure 1, radiai adjustment mechanism includes being fixed on the welding campaign connecting plate 9 of welding motion fixed block 8, opened up The radial direction dovetail groove on connecting plate 9 and the radial direction being fixed on the radial motion pedestal of radial movement mechanism are moved in welding Dovetail guide 115, the radial direction dovetail groove and radial direction dovetail guide 115 are engaged and the radial direction phase all with seal-weld carrier Parallel, the welding motion connecting plate 9 is removably connected with briquetting 13, the radial direction in the lower end of radial direction dovetail groove by screw Dovetail guide 115 forms described first and moves radially portion.Carried the lifting of seal-weld built-up welding maintenance unit is inserted in into seal-weld Before on body, first briquetting 13 is pulled down, led according to the specific external diameter adjustment radial direction dovetail of scene seal-weld carrier to be repaired Position of the rail 115 in radial direction dovetail groove, so as to adjust radial movement mechanism, axial motion mechanism, rotating mechanism and welding mould Particular location of the block 120 in seal-weld carrier radially, after adjustment terminates, then in the lower end installation briquetting of radial direction dovetail groove 13, seal-weld built-up welding maintenance unit is inserted in close by locking radial direction dovetail guide 115 position in radial direction dovetail groove again afterwards Carrier is stitched in soldering and sealing.

As shown in figures 1 to 6, radial movement mechanism moves radially the radial motion pedestal in portion, edge including being fixed on first The radial motion radially extended the driving leading screw 91 of seal-weld carrier, the radial direction nut bearing for being fixed with radial motion nut 84 and the radial motor component 86 on radial motion pedestal；The radial motion pedestal includes U-shaped half pack arrangement Radial motion base 10, the radially fixed collateral plate 88 and the collateral plate of radial support for being installed in the two ends of radial motion base 10 respectively 12, the driving of the radial motor component 86 radial motion driving leading screw 91 is rotated, and the radial motion drives the two ends of leading screw 91 All it is rotatably supported in by bearing in radially fixed collateral plate 88 and the collateral plate 12 of radial support, radial motion driving leading screw 91 are engaged with radial motion nut, and the radial direction nut bearing 84 is by being axially moved connecting plate 14 and axial motion mechanism phase Connect, form described second and move radially portion.The radial motor component 86 is located at the side of radial motion base 10, is fixed on Radially fixed collateral plate 88, and radial motor component 86 drives radial motion to drive leading screw 91 to rotate by the 4th gear unit； The concrete structure of 4th gear unit is：4th gear unit is included on the motor output shaft of radial motor component 86 Radial direction little gear 85 and the radial direction gear wheel 87 that the end of leading screw 91 is driven installed in radial motion, radial direction little gear 85 and footpath It is meshed to gear wheel 87, constitutes gear driving pair.When radial motor component 86 is rotated, radial direction little gear 85 is driven synchronously to turn It is dynamic, so as to drive radial motion to drive leading screw 91 to rotate by radial direction gear wheel 87, realize radial motion nut, radial direction nut branch Seat 84, axial motion mechanism, rotating mechanism and welding module 120 it is radially movable driving leading screw 91 linear movement, to cover The radial direction of whole seal-weld 112 is covered, and weave control or welding arc control are provided for weld assembly 46 when welding maintenance Motion.

In order to improve the stability that radial direction nut bearing 84 is moved radially, as shown in fig. 6, radial movement mechanism is also included admittedly Due to the radial guidance sliding block 93 and the radial alignment guide rail parallel to radial motion driving leading screw 91 of radial direction nut bearing 84 90, the two ends of the radial alignment guide rail 90 are fixed in radial motion pedestal, the radial guidance sliding block 93 and radial alignment Guide rail 90 is engaged.In addition, radial direction limit switch 89 is installed on the medial surface of radial motion base 10 1, radial direction nut bearing 84 Both ends of the surface on be fitted with radially spacing plectrum 92, the extension of the radially movable driving leading screw 91 of the spacing plectrum 92 of two radial directions Direction is oppositely arranged, and the footpath of radial direction nut bearing 84 is realized by the mutual cooperation of radial direction limit switch 89 and the spacing plectrum 92 of radial direction To the electric limiting of motion.As shown in figure 1, being provided with radial axle end seal lid on the outer surface of radially fixed collateral plate 88, radially The top of motion base 10 is provided with radial motion cover plate 11, so that the equal envelope of overall parts in radial movement mechanism In in radial motion base 10 and radial motion cover plate 11, its compact in design, delicate structure can effectively protect radial motion machine Each parts in structure.Axial fortune is also associated with the axial movement connecting plate 14 mutually fixed with the upper surface of radial direction nut bearing 84 Dynamic cover plate 15, axial motion mechanism is all arranged on and is axially moved on cover plate 15, so that axial motion mechanism be connected with axial movement Fishplate bar 14 is fixedly connected.

As shown in Figure 1 and Figure 7, axial motion mechanism includes being axially moved pedestal, axially parallel with seal-weld carrier Axial movement driving leading screw 102, be fixed be axially moved nut 97 axial nut bearing 99 and installed in axial movement Axial direction electric machine component 95 on pedestal；The axial movement cover plate 15 is fixed in the upper end for being axially moved pedestal, is axially moved base The axial restraint that seat includes the axials movement base 17 of U-shaped half pack arrangement, be installed in axial movement base 17 two ends respectively is collateral Plate 19 and axial support-side support plate 16, the driving axial of the axial direction electric machine component 95 motion driving leading screw 102 are rotated, the axial direction The two ends of motion driving leading screw 102 are all rotatably supported in the collateral plate 19 of axial restraint and axial support-side support plate by bearing In 16, it is axially moved driving leading screw 102 and is engaged with being axially moved nut 97, the axial nut bearing 99 passes through rotational motion Connecting plate 20 is connected with axial motion mechanism, forms the axial movement portion.The axial direction electric machine component 95 is located at axial fortune Move the lower end of base 17, be fixed on the collateral plate 19 of axial restraint, and axial direction electric machine component 95 passes through the 5th gear unit drive shaft Rotated to motion driving leading screw 102；The concrete structure of 5th gear unit is：5th gear unit includes being arranged on axial direction electric machine Axial little gear 94 on the motor output shaft of component 95 and installed in being axially moved the axially big of driving leading screw 102 end Gear 96, axial little gear 94 and axial gear wheel 96 are meshed, constitute gear driving pair.When axial direction electric machine component 95 is rotated, Axial little gear 94 is driven synchronously to rotate, so that rotated by the axial driving axial of gear wheel 96 motion driving leading screw 102, it is real Now it is axially moved nut 97, axial nut bearing 99, rotating mechanism and welding module 120 and drives leading screw 102 axially movable Linear movement, be welding module 120 provide above-below direction motion, to realize during multiple-bead deposit, welding module 120 with sealing weld The different requirement for height in 112 surfaces is stitched, and weave control or welding arc control motion are provided for weld assembly 46 when welding maintenance, To eliminate the electric arc rough burning because caused by built-up welding is uneven, to ensure the stability of weld deposit process.

In order to improve the stability of the axial movement of axial nut bearing 99, as shown in fig. 7, axial motion mechanism is also included admittedly Led due to the axial guidance sliding block 100 of axial nut bearing 99 and parallel to the axial straight line for being axially moved driving leading screw 102 Rail 101, the two ends of the axial line slideway 101 are fixed in axial movement pedestal, the axial guidance sliding block 100 and axial direction Line slideway 101 is engaged.Axial limiting switch 103, axial nut are installed in addition, being axially moved on the medial surface of base 17 1 Axial limiting plectrum 98 is fitted with the both ends of the surface of bearing 99, two axial limiting plectrums 98 drive leading screw axially movable 102 bearing of trend is oppositely arranged, and the axial spiral shell of mutual cooperation realization of 103 and axial limiting plectrum 98 is switched by axial limiting The electric limiting that female bearing 99 is axially moved.As shown in figure 1, being also equipped with axle on the outer surface of the collateral plate 19 of axial restraint 18 are covered to shaft end.

As depicted in figs. 1 and 2, rotating mechanism includes rotary electric machine fixed seat 22, the peace being fixedly connected with axial movement portion Rotary electric machine component 104 and rolling bearing overcoat 23 loaded on rotary electric machine fixed seat 22 and driven by rotary electric machine component 104 The dynamic rotation mandrel 24 rotated, rotary electric machine fixed seat 22 and the lower end of rotational motion connecting plate 20 are mutually fixed, and rotational motion connects Fishplate bar 20 is L-shaped, and the rotation mandrel 24 is rotatably supported in rolling bearing overcoat 23 by bearing, the rotation mandrel 24 one end away from rotary electric machine component 104 are connected with welding module 120 by welding module supporting plate 25, form described turn Dynamic portion.In the present embodiment, directly with rotation mandrel 24, mutually fixed, direct drive turns the motor output shaft of rotary electric machine component 104 Moving mandrel 24 rotates, so that the inclination angle of welding module 120 is adjusted, to adapt to stroke sleeve pipe 113 or pressure hull in different heap-type The built-up welding operation of middle part side seal-weld 112, middle part transverse direction and lower side seal-weld 112 on 114, and ensure that welding is made Weld assembly 46 is as vertical as possible with the arc surface of seal-weld 112 with the plane that wire feed nozzle assembly 45 is constituted during industry.Described turn It is also equipped with being carved with two square holes for being separated by rotary spacing angle on rotary spacing disk, rotary spacing disk in moving mandrel 24, rotates Rotary spacing switch 47 is installed, when rotary spacing disk is rotated with rotation mandrel 24, by turning in motor fixing seat 22 The extreme position for being engaged detectable rotation mandrel 24 of limit switch 47 and square hole is moved, for different seal-weld 112, if Different rotary spacing disks are put, to adapt to different welding procedures.The outside of rotary electric machine component 104 is provided with rotary electric machine cover 21, rotary electric machine cover 21 is fixed on rotational motion connecting plate 20, the protection for rotary electric machine component 104.

Further, as depicted in figs. 1 and 2, the welding module 120 includes welding module supporting plate 25, welding wire rotation Adjust fixed seat 26, welding wire and rotate regulating block 27 and welding wire adjustment mechanism connecting plate 32, the welding module supporting plate 25 with Rotation mandrel 24 is mutually fixed, so as to welding module 120 is arranged on the end face of rotation mandrel 24, the weld assembly 46 is installed In welding module supporting plate 25, the wire feed nozzle assembly 45 is arranged on welding wire adjustment mechanism connecting plate 32, and the welding wire turns Dynamic regulation fixed seat 26 is arranged on weld assembly 46, and the welding wire rotates regulating block 27 and is with welding wire rotation regulation fixed seat 26 It is rotatably assorted, can be relatively rotated between the two around the axis of weld assembly 46, the welding wire adjustment mechanism connecting plate 32 and welding wire Regulating block 27 is rotated for movement to coordinate, can move along the axially opposing of weld assembly 46 between the two.

Welding wire, which rotates regulating block 27 and welding wire and rotated, to be adjusted the structure that fixed seat 26 is rotatably assorted and is：As shown in Fig. 2 welding wire The two ends of rotation regulation fixed seat 26, which are provided with, is located at the lug portions that welding wire rotates the both sides of regulating block 27, is designed with each lug portions Arc adjustment hole 271 and turn hole, the two ends that the welding wire rotates regulating block 27 are respectively equipped with shaft, and welding wire rotates regulating block 27 The turn hole that the shaft at two ends rotates regulation fixed seat 26 two ends with welding wire respectively is engaged, constitutes rotational motion；Regulation terminates Afterwards, lug portions rotate regulating block 27 with welding wire and are connected by the screw being located in arc adjustment hole 271, lock angle of rotation Degree, can be achieved the regulation of rotational angle in the range of arc adjustment hole 271.Welding wire rotates regulating block 27 and welding wire adjustment mechanism Connecting plate 32 moves the structure coordinated：As shown in Fig. 2 welding wire is rotated is fixed with dovetail geosynclinal block 29, dovetail groove on regulating block 27 The axially in parallel welding wire regulation dovetail groove with weld assembly 46, the welding wire adjustment mechanism connecting plate 32 are offered in block 29 Provided with the axially in parallel welding wire regulation dovetail guide 28 with weld assembly 46, the welding wire regulation dovetail guide 28 and welding wire Regulation dovetail groove is engaged.Pass through being rotatably assorted between welding wire adjustment mechanism connecting plate 32 and welding wire rotation regulation fixed seat 26 With mobile cooperation, wire feed position can be adjusted on a large scale according to the different structures of weld assembly 46, to adapt to different weld assemblies 46 Structure and welding procedure.Welding video monitoring component 30 and temperature sensor are installed on the welding wire adjustment mechanism connecting plate 32 31；CCD camera, positioning and weldering when being installed for seal-weld built-up welding maintenance unit can be selected by welding video monitoring component 30 Real-time monitoring when connecing；Temperature sensor 31 is used to detect bath temperature during welding.

Further, as depicted in figs. 1 and 2, two axle welding wires tune is also equipped with the welding wire adjustment mechanism connecting plate 32 Complete machine structure 116, the output end of two axle welding wire adjustment mechanisms 116 is connected with welding wire adjustment and performs block 108, and welding wire adjustment performs block 108 can be along the axial movement parallel to weld assembly 46 and along the axial movement perpendicular to weld assembly 46, and the welding wire is adjusted It is provided with whole execution block 108 on welding wire adjustment contiguous block 44, welding wire adjustment contiguous block 44 and ignition tip mounting blocks 43, institute is installed State wire feed nozzle assembly 45 to be fixed on ignition tip mounting blocks 43, realize that two axles of welding wire are automatically adjusted, greatly improve welding wire position Degree of regulation there is provided the quality of weld job.

Two axle welding wire adjustment mechanisms 116 are preferred to use following structure：As shown in Figure 2 and Figure 8, two axle welding wire adjustment mechanism It is the 116 welding wires adjustment installing plates 33 for including two pieces of parallel arrangements, parallel with the axial direction of weld assembly 46 parallel to driving silk Thick stick 110 and it is vertical to gear shaft 109, with it is parallel to driving leading screw 110 be engaged it is parallel to nut guide pad 111 and Perpendicular vertical in the axial direction of weld assembly 46 is to driving circular rack 35 and is fixed on parallel on welding wire adjustment installing plate 33 To electric machine assembly 39 and vertically to electric machine assembly 34.The two ends of two pieces of welding wire adjustment installing plates 33 are respectively fixed with what is be parallel to each other Welding wire adjusts lateral plate 107 and welding wire adjustment laterallys secure plate 42, and welding wire adjustment laterallys secure plate 42 and is fixed on welding wire adjustment machine Structure connecting plate 32, so that two pieces of welding wires are adjusted into installing plate 33 is all fixed on welding wire adjustment mechanism connecting plate 32.It is described it is parallel to Drive the two ends of leading screw 110 and two pieces of welding wires are all vertically rotatably supported in by copper sheathing to the two ends of gear shaft 109 Adjust installing plate 33 in, it is described it is parallel to electric machine assembly 39 by the 6th gear unit drive it is parallel to driving leading screw 110 rotate, Vertical driven to electric machine assembly 34 by the 7th gear unit vertically rotates to gear shaft 109, described parallel to spiral shell Offer sliding eye in female guide pad 111, vertical be movably located in driving circular rack 35 parallel is oriented to nut It is meshed in the sliding eye of block 111 and with vertical to gear shaft 109, constitutes gear driving pair, the welding wire adjustment is performed Block 108 is fixed on vertical one end to driving circular rack 35.

In the present embodiment, the 6th gear unit is parallel on the parallel motor output shaft to electric machine assembly 39 including being fixed on To little gear 40 and be fixed on it is parallel to the parallel to gear wheel 105 of driving leading screw 110 end, it is parallel to little gear 40 with It is parallel to be meshed to gear wheel 105, constitute gear driving pair.7th gear unit includes being fixed on vertically to electric machine assembly 34 Vertical on motor output shaft is to little gear 38 and is fixed on vertical to the vertical to gear wheel of the end of gear shaft 109 106, vertically it is meshed to gear wheel 106 with vertical to little gear 38, constitutes gear driving pair.It is parallel to nut guide pad 111 In with the parallel screw thread that lead screw pair is constituted to driving leading screw 110 be trapezoidal thread, the axial direction of sliding eye and trapezoidal thread is perpendicular, In other words, sliding eye and it is vertical to driving circular rack 35 all perpendicular to by weld assembly 46 and wire feed nozzle assembly 45 constitute it is flat Face.Therefore, when it is parallel rotated to electric machine assembly 39 when, by parallel to little gear 40 and parallel being meshed to gear wheel 105 Can drive it is parallel rotated to driving leading screw 110 so that realize it is parallel to nut guide pad 111, it is vertical to driving circular rack 35, with And welding wire adjustment performs block 108 and moved along parallel to the linear of the axis of weld assembly 46, now, vertically to driving circular rack 35 with Vertical is to slide relatively to gear shaft 109.When vertically being rotated to electric machine assembly 34, by vertically to little gear 38 and hang down Straight being meshed to drive and vertically rotated to gear shaft 109 to gear wheel 106, so as to realize vertical to driving circular rack 35 and welding wire adjustment perform block 108 and moved along perpendicular to constituting the linear of plane by weld assembly 46 and wire feed nozzle assembly 45. The vertical other end to driving circular rack 35 is fixed with welding wire adjustment limited block 36, and the welding wire adjustment performs the He of block 108 Welding wire adjustment limited block 36 is all located at the outside of sliding eye, realize it is vertical to driving circular rack 35 move it is spacing, prevent its from Deviate from sliding eye.

Further, as shown in figure 1, the welding module 120 also includes being arranged on welding motion fixed disk 52 lower surface On wire feeding disc 48 and wire-feed motor 51, wire feeding disc 48 by wire feeding disc fixed plate 49 be arranged on welding motion fixed disk 52 under Side, the wire feed nozzle assembly 45 is connected by wire-feeding pipe 37 with wire-feed motor 51, and the wire-feed motor 51 is installed on for conveying to be sent Welding wire in wire tray 48.

When seal-weld built-up welding maintenance unit is used for the CRDM of certain heap-type, as shown in figure 9, control rod drives Have on the stroke sleeve pipe 113 of mechanism and the outer wall of pressure hull 114 and be up to sequentially provided with three seals weld seam 112 down, with pressure-resistant The outer wall lower sealing bead 112 of housing 114 is that built-up welding maintenance objects are illustrated, the specific reality of seal-weld built-up welding maintenance unit Apply step as follows：

Before step 1, built-up welding maintenance, find that the lower sealing bead 112 on pressure hull 114 is revealed by Non-Destructive Testing, first The pretreatment work of early stage, such as drilling, polishing are carried out to the seal-weld 112.

Step 2 then to each moving component in seal-weld built-up welding maintenance unit (such as clamping stirrup 55, internal tooth annular Slideway 69, radial direction nut bearing 84, axial nut bearing 99 etc.) carry out school zero, reset, welding module 120 is adjusted to vertical State, so as not to during the installation of seal-weld built-up welding maintenance unit, welding module 120 and environment interfere, according to the outer of pressure hull 114 Footpath manually adjusts the position of radial direction dovetail guide 115 and locked.

Step 3, by hanger 2 lift seal-weld built-up welding maintenance unit, seal-weld built-up welding maintenance unit is led upper To under block 1, the guide effect of lower guide pad 64, from the top of CRDM, along the outer wall of stroke sleeve pipe 113 and pressure-resistant The outer wall slide downward of housing 114, and observed by welding video monitoring component 30, the height detected with reference to range sensor 70 Position, specified location is installed to by seal-weld built-up welding maintenance unit.

Step 4, control clamping motor component 53 are rotated, make two clamping stirrups 55 in the case where clamping the driving of driving leading screw 62 to Interior clamping movement, is locked on the outer wall of pressure hull 114 by the elastic compression plate 56 for being fixed on the inner side of clamping stirrup 55.

Step 5, control rotating mechanism 119 are acted, and weld assembly 46 are positioned to seal-weld 112, and adjust welding The posture of component 46 and wire feed position, striking, wire feed, according to the motion of each motion of welding procedure demand modeling, realize heap Weld operation；According to welding procedure demand in weld deposit process, swinging arc control is carried out by radial movement mechanism and axial motion mechanism And welding arc control, by welding the situation of the real-time monitored welding pool of video monitoring component 30, detected by temperature sensor 31 Bath temperature；After the completion for the treatment of built-up welding operation, blow-out, stop wire feed, each reset, and welding module 120 is adjusted to vertical State；Control clamping motor component 53 is rotated, and two clamping stirrups 55 is unclamped the outside of pressure hull 114, by seal-weld heap Weldering maintenance unit is lifted out upwards, so as to complete whole built-up welding operation process.

In summary, the seal-weld built-up welding maintenance unit that the application is related to has the advantages that：

1st, seal-weld built-up welding maintenance unit monnolithic case is cylindrical structure, and employs hollow type and fix to clamp, revolve Rotation mechanism, and semi-surrounding type welding motion module and welding module, compact conformation rationally, can fully adapt to maintenance sites Narrow and small restricted clearance, it is to avoid the installation limitation of different azimuth during maintenance work.

2nd, clamp system can automatic centering clamp, and it is replaceable clamping and be oriented to parts, adapt to different tube diameters, rotation Other operation modules, such as drilling, polishing can be installed under mechanism；The welding motion module of Three Degree Of Freedom, can fully adjust weldering The position and attitude of connection module, two axle welding wire adjustment mechanisms can adjust the relative position of wire feed nozzle assembly and weld assembly, by each The adjust automatically of axle, it is ensured that spatial accessibility and welding process requirement needed for different sealing weld seam built-up welding maintenance；Weld mould Block is provided with a wide range of manual adjustment means of two axles, and two axle welding wire adjustment mechanisms can be made rotationally and axially to be moved along weld assembly axis It is dynamic, it is suitable for different weld assembly structures, such as TIG weld component or laser welding component.

4th, a whole set of seal-weld built-up welding maintenance unit uses modularized design, can change a little by adjusting each kinematic axis Parts, disclosure satisfy that different heap-type, the welding process requirement of diverse location CRDM seal-welds, it can also be used to which CRDM is close before labour The welding of soldering and sealing seam, strong applicability；Maintenance unit is simple to operate, the set-up time is short, and welding process automatically controlling and remotely supervising Control, can reduce operating personnel's exposure dosage, save the time of built-up welding maintenance, can effectively improve the operational efficiency of nuclear power station.

So, the utility model effectively overcomes various shortcoming of the prior art and has high industrial utilization.

Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.

Claims (25)

1. a kind of seal-weld built-up welding maintenance unit, it is characterised in that：Including with installation pedestal (117), the folder for housing inner chamber Tight mechanism (118), rotating mechanism (119) and welding module (120)；In the installation pedestal (117) have up/down perforation, And the installation groove (41) for being penetrated for seal-weld carrier, the collecting inner chamber is connected with installing groove (41), described Installation pedestal (117) has the rotating mechanism fixed disk (6) for being located at and housing at the lower end of inner chamber；The clamp system (118) is located at In the collecting inner chamber of installation pedestal (117) and with two symmetrically arranged clamping stirrups (55), two clamping stirrups (55) can Moved towards along the radial direction of seal-weld carrier, the periphery for installation pedestal (117) to be fixed on to seal-weld carrier；It is described Rotating mechanism (119), which is arranged on the lower surface of rotating mechanism fixed disk (6) and had, to be revolved along the circumference of seal-weld carrier The welding campaign fixed disk (52) turned；The welding module (120) is installed on welding motion fixed disk (52) and with welding group Part (46) and wire feed nozzle assembly (45).

2. seal-weld built-up welding maintenance unit according to claim 1, it is characterised in that：The installation pedestal (117) is also Including tubular shell body (4) and the upper cover plate (3) of shell body (4) upper end is installed in, the rotating mechanism fixed disk (6) is solid It is located on the lower end of shell body (4), the upper surface of the upper cover plate (3) and is installed with least one hanger (2), the collecting inner chamber Surrounded by upper cover plate (3), shell body (4) and rotating mechanism fixed disk (6), the groove (41) of installing is located at shell body (4) Upper cover plate (3) and rotating mechanism fixed disk (6) are simultaneously run through in inner side up and down.

3. seal-weld built-up welding maintenance unit according to claim 2, it is characterised in that：The installation pedestal (117) House and be additionally provided with the upper guide pad (1) for being fixed on upper cover plate (3) in inner chamber and be fixed under rotating mechanism fixed disk (6) Offered in guide pad (64), the upper guide pad (1) above and below being offered in the upper pilot hole of up/down perforation, lower guide pad (64) The lower pilot hole of insertion, the upper pilot hole, lower pilot hole and installation groove (41) are coaxially disposed and are interconnected.

4. seal-weld built-up welding maintenance unit according to claim 3, it is characterised in that：The upper guide pad (1) is upper At the lower end of pilot hole and lower guide pad (64) is designed with chamfered section at the lower end of lower pilot hole.

5. seal-weld built-up welding maintenance unit according to claim 1, it is characterised in that：Clamp system (118) bag Include two pieces be located at respectively the arc installing plate (54) of two clamping stirrup (55) outer circumferential sides, two be located at clamping stirrup (55) respectively Clamping at both sides drives leading screw (62) and is fixed on the clamping motor component (53) of arc installing plate (54), two pieces of arcs Installing plate (54) is all fixed on the upper surface of rotating mechanism fixed disk (6), and two clamp driving leading screw (62) two ends and all pass through Bearing is rotatably supported in two pieces of arc installing plates (54), be all fixed with the both sides of two clamping stirrups (55) respectively with Two clamp the clamping drive nut (59) that driving leading screw (62) is engaged；Two clamp in driving leading screw (62), a clamping Drive leading screw (62) to be driven by clamping motor component (53) to rotate, and the root clamps driving leading screw (62) and passes through the first gear unit Clamped with another and drive leading screw (62) to be connected, drive another to clamp driving leading screw (62) synchronous axial system.

6. seal-weld built-up welding maintenance unit according to claim 1 or 5, it is characterised in that：Each clamping stirrup (55) Inner peripheral surface on be all installed with a plurality of elastic compression plate (56), elastic compression plate (56) be used for and seal-weld carrier outer peripheral face It is in contact.

7. seal-weld built-up welding maintenance unit according to claim 5, it is characterised in that：Two pieces of arc installing plates (54) it Between be installed with least one be installed with parallel to the guide rod (58) for clamping driving leading screw (62), in each clamping stirrup (55) with The guide sleeve (57) that guide rod (58) is engaged.

8. seal-weld built-up welding maintenance unit according to claim 1, it is characterised in that：Rotating mechanism (119) bag Include and be fixed on the electric rotating machine component (76) of rotating mechanism fixed disk (6), the biography down rotated is driven by electric rotating machine component (76) Moving gear (83), the internal tooth annular slide track (69) with interior Tooth Surface (691), the ring mutually fixed with internal tooth annular slide track (69) Shape guide rail slider disc (68), the ring-shaped guide rail fixed disk (71) for being fixed on rotating mechanism fixed disk (6) lower surface and multiple weeks To the V groove bearings (67) being distributed on ring-shaped guide rail fixed disk (71), the lower transmissioning gear (83) and internal tooth annular slide track (69) interior Tooth Surface (691) is meshed；The periphery of the internal tooth annular slide track (69) has V-type orbit portion, each V fluted shafts Holding the periphery of (67) all has V-groove, the V-type orbit portion of the internal tooth annular slide track (69) and the V-type of multiple V groove bearings (67) Groove is engaged, and the welding motion fixed disk (52) is arranged on the lower surface of ring-shaped guide rail slider disc (68).

9. seal-weld built-up welding maintenance unit according to claim 1, it is characterised in that：Also include welding motion module (121), the welding motion module (121) includes moving radially the radiai adjustment mechanism in portion, with the second radial direction with first The radial movement mechanism of move portion, the axial motion mechanism with axial movement portion and the rotating mechanism with rotation section, institute State radiai adjustment mechanism and be arranged on by welding motion fixed block (8) on the lower surface of welding motion fixed disk (52), described the One moves radially portion can moving radially and mutually being fixed with radial movement mechanism along seal-weld carrier, the described second radially shifting Dynamic portion can moving radially and mutually being fixed with axial motion mechanism along seal-weld carrier, the axial movement portion can be along sealing The axial movement of weld seam carrier is simultaneously mutually fixed with rotating mechanism, and the rotation section and axial movement portion are perpendicular, the welding mould Block (120) is mutually fixed with rotation section.

10. seal-weld built-up welding maintenance unit according to claim 9, it is characterised in that：The radiai adjustment mechanism bag Include the radial direction for being fixed on the welding campaign connecting plate (9) of welding motion fixed block (8), being opened on welding motion connecting plate (9) Dovetail groove and the radial direction dovetail guide (115) being fixed in radial movement mechanism, the radial direction dovetail groove and radial direction dovetail are led Rail (115) is engaged and parallel all with the radial direction of seal-weld carrier, and the welding motion connecting plate (9) is in radial direction dovetail The lower end of groove is removably connected with briquetting (13), and the radial direction dovetail guide (115) forms described first and moves radially portion.

11. seal-weld built-up welding maintenance unit according to claim 9, it is characterised in that：The radial movement mechanism bag Include and be fixed on the first radial motion pedestal for moving radially portion, drive silk along the radial motion radially extended of seal-weld carrier Thick stick (91), the radial direction nut bearing (84) for being fixed with radial motion nut and the radial direction electricity on radial motion pedestal Thermomechanical components (86), radial motor component (86) the driving radial motion driving leading screw (91) rotates, the radial motion driving The two ends of leading screw (91) be all rotatably supported in by bearing in radial motion pedestal and radial motion driving leading screw (91) with Radial motion nut is engaged, and the radial direction nut bearing (84) is by being axially moved connecting plate (14) and axial motion mechanism phase Connect, form described second and move radially portion.

12. seal-weld built-up welding maintenance unit according to claim 11, it is characterised in that：The radial movement mechanism is also Including being fixed on the radial guidance sliding block (93) of radial direction nut bearing (84) and driving leading screw (91) parallel to radial motion Radial alignment guide rail (90), the two ends of the radial alignment guide rail (90) are fixed in radial motion pedestal, the radial guidance Sliding block (93) is engaged with radial alignment guide rail (90).

13. seal-weld built-up welding maintenance unit according to claim 9, it is characterised in that：The axial motion mechanism bag Include be fixed on second move radially portion be axially moved pedestal, with the axial parallel axial movement driving silk of seal-weld carrier Thick stick (102), be fixed be axially moved nut (97) axial nut bearing (99) and installed in be axially moved pedestal on axle To electric machine assembly (95), axial direction electric machine component (95) the driving axial motion driving leading screw (102) rotates, described to be axially moved The two ends of driving leading screw (102) are all rotatably supported in axial movement pedestal by bearing and are axially moved driving leading screw (102) it is engaged with being axially moved nut (97), the axial nut bearing (99) passes through rotational motion connecting plate (20) and axle It is connected to motion, forms the axial movement portion.

14. seal-weld built-up welding maintenance unit according to claim 13, it is characterised in that：The axial motion mechanism is also Including being fixed on the axial guidance sliding block (100) of axial nut bearing (99) and driving leading screw (102) parallel to being axially moved Axial line slideway (101), the two ends of the axial line slideway (101) are fixed in axial movement pedestal, the axial direction Guide rail slide block (100) is engaged with axial line slideway (101).

15. seal-weld built-up welding maintenance unit according to claim 9, it is characterised in that：The rotating mechanism include with Rotary electric machine fixed seat (22) that axial movement portion is fixedly connected, the rotary electric machine component for being installed on rotary electric machine fixed seat (22) (104) and rolling bearing overcoat (23) and by rotary electric machine component (104) drive rotate rotation mandrel (24), described turn Moving mandrel (24) is rotatably supported in rolling bearing overcoat (23) by bearing, and the rotation mandrel (24) is electric away from rotating One end of thermomechanical components (104) is connected with welding module (120) by welding module supporting plate (25), forms the rotation section.

16. the seal-weld built-up welding maintenance unit according to claim 1 or 9, it is characterised in that：The welding module (120) include welding module supporting plate (25), welding wire and rotate regulation fixed seat (26), welding wire rotation regulating block (27) and weldering Silk adjustment mechanism connecting plate (32), the weld assembly (46) is arranged in welding module supporting plate (25), the wire feeding mouth group Part (45) is arranged on welding wire adjustment mechanism connecting plate (32), and the welding wire rotates regulation fixed seat (26) and is arranged on weld assembly (46) on, the welding wire rotate regulating block (27) and welding wire rotate regulation fixed seat (26) can be around to be rotatably assorted, between the two The axis of weld assembly (46) is relatively rotated, and the welding wire adjustment mechanism connecting plate (32) rotates regulating block (27) to move with welding wire It is dynamic coordinate, between the two can along weld assembly (46) axially opposing movement.

17. seal-weld built-up welding maintenance unit according to claim 16, it is characterised in that：It is solid that the welding wire rotates regulation The two ends of reservation (26), which are provided with, is located at the lug portions that welding wire rotates regulating block (27) both sides, and arc tune is designed with each lug portions Knothole (271) and turn hole, the two ends that the welding wire rotates regulating block (27) are respectively equipped with shaft, and welding wire rotates regulating block (27) The turn hole that the shaft at two ends rotates regulation fixed seat (26) two ends with welding wire respectively is engaged, constitutes rotational motion, described prominent Ear rotates regulating block (27) with welding wire and is detachably connected by the screw being located in arc adjustment hole (271).

18. seal-weld built-up welding maintenance unit according to claim 16, it is characterised in that：The welding wire rotates regulating block (27) the axially in parallel welding wire regulation dovetail groove with weld assembly (46), the welding wire adjustment mechanism connecting plate are offered on (32) provided with the axially in parallel welding wire regulation dovetail guide (28) with weld assembly (46), the welding wire adjusts dovetail guide (28) it is engaged with welding wire regulation dovetail groove.

19. seal-weld built-up welding maintenance unit according to claim 16, it is characterised in that：The welding wire adjustment mechanism connects Welding video monitoring component (30) and temperature sensor (31) are installed on fishplate bar (32).

20. seal-weld built-up welding maintenance unit according to claim 16, it is characterised in that：The welding wire adjustment mechanism connects Two axle welding wire adjustment mechanisms (116) are also equipped with fishplate bar (32), the output end of two axle welding wire adjustment mechanisms (116) is connected with weldering Silk adjustment performs block (108), welding wire adjustment perform block (108) can along the axial movement parallel to weld assembly (46) and Along the axial movement perpendicular to weld assembly (46), the welding wire adjustment, which is performed, is provided with welding wire adjustment contiguous block on block (108) (44) ignition tip mounting blocks (43), are installed on welding wire adjustment contiguous block (44), the wire feed nozzle assembly (45) is fixed on conduction On mouth mounting blocks (43).

21. seal-weld built-up welding maintenance unit according to claim 20, it is characterised in that：The two axles welding wire adjusts machine Structure (116) includes the welding wires adjustment installing plates (33), parallel with the axial direction of welding wire component parallel to drive of two pieces of parallel arrangements Dynamic leading screw (110) and vertical parallel led to gear shaft (109), with parallel to drive that leading screw (110) is engaged to nut To block (111), with the axial direction of welding wire component it is perpendicular it is vertical to driving circular rack (35) and be fixed on welding wire adjustment installation Parallel to electric machine assembly (39) and vertical to electric machine assembly (34) on plate (33), two pieces of welding wire adjustment installing plates (33) are all fixed It is described parallel to the two ends of driving leading screw (110) and vertical to gear shaft (109) in welding wire adjustment mechanism connecting plate (32) Two ends two pieces of welding wires be all rotatably supported in by copper sheathing adjusted in installing plates (33), it is described parallel to driving leading screw (110) rotated from parallel driven to electric machine assembly (39), it is described vertical to gear shaft (109) from vertically to electric machine assembly (34) driving is rotated, and sliding eye is offered in parallel (111) to nut guide pad, described vertical to driving circular rack (35) Movably it is located in the parallel sliding eye to nut guide pad (111) and is mutually nibbled to gear shaft (109) with vertical Close, the welding wire adjustment performs block (108) and is fixed on vertical one end to driving circular rack (35).

22. seal-weld built-up welding maintenance unit according to claim 21, it is characterised in that：It is described vertical to driving knuckle-tooth The other end of bar (35) is fixed with welding wire adjustment limited block (36), and the welding wire adjustment performs block (108) and welding wire adjustment is spacing Block (36) is all located at the outside of sliding eye.

23. seal-weld built-up welding maintenance unit according to claim 1, it is characterised in that：The welding module (120) is also Including the wire feeding disc (48) and wire-feed motor (51) on welding motion fixed disk (52) lower surface, the wire feed nozzle assembly (45) it is connected by wire-feeding pipe (37) with wire-feed motor (51), the wire-feed motor (51) is installed on wire feeding disc (48) for conveying Welding wire.

24. seal-weld built-up welding maintenance unit according to claim 1, it is characterised in that：The welding motion fixed disk (52) range sensor (70) is installed on lower surface.

25. seal-weld built-up welding maintenance unit according to claim 1, it is characterised in that：The welding motion fixed disk (52) periphery is installed with prominent mounting blocks, is fixed with and extends up and down and positioned at installation pedestal (117) periphery on the mounting blocks Line bracket (5) is walked in side, and the lower surface of the welding motion fixed disk (52) is provided with cable fixed block (50).