CN108500422A - A kind of seal-weld built-up welding maintenance unit - Google Patents

Abstract

The present invention provides a kind of seal-weld built-up welding maintenance unit, includes installation pedestal, clamp system, rotating mechanism and welding module with receiving inner cavity；Have in installation pedestal up and down and there is the rotating mechanism being located at receiving inner cavity lower end to fix disk for the installation straight slot for being penetrated for seal-weld carrier, installation pedestal；Clamp system is located in the receiving inner cavity of installation pedestal and has there are two symmetrically arranged clamping stirrup, and two clamping stirrups can move towards along the radial direction of seal-weld carrier, the periphery for installation pedestal to be fixed on to seal-weld carrier；Rotating mechanism is mounted on the lower face of rotating mechanism fixation disk and has can be along the fixed disk of welding campaign of seal-weld carrier to rotate in a circumferential direction；Welding module is installed on the fixed disk of welding movement and has weld assembly and wire feed nozzle assembly.The application can realize automatic surfacing operation, easy to operate, the set-up time is short, built-up welding maintenance time shortens, and substantially reduce the maintenance activity cost of seal-weld.

Description

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

Technical field

The present invention relates to the welding of seal-weld, built-up welding and repair fields, and nuclear power stand control is used for more particularly to one kind The seal-weld built-up welding maintenance unit of rod drive mechanism (CRDM).

Background technology

Control rod drive mechanism (hereinafter referred to as CRDM) is the servo mechanism of reactor control and safety system, work( Can be according to the instruction of reactor control and protection system, drive control rod assembly moves above and below in heap in-core, keeps control rod 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 on top cover of reactor pressure vessel Rod drive mechanism processed is provided with multiple-sealed weldering from top to bottom in order to realize the connection between reactor lid and each component Seam, different heap-type different froms.Seal-weld is mainly distributed on the stroke casing 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, the sealing welding of CRDM 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 nearby cause corrosion broken leakage position Bad, or even corrosion head cover cause extends through, this will seriously endanger the safe operation of nuclear power station, and even nuclear safety accident lures Cause in time repairs seal-weld if seal-weld field maintenance technology can be grasped, then is remarkably improved power station operation Efficiency and reliability.

It leaks and repairs for nuclear power station CRDM seal-welds, mainly there is repair technique for overlaying and the France in the U.S. in the world CRDM integral replacing technology two schemes.U.S.'s repair technique for overlaying is on the basis for retaining original CRDM components and its seal-weld Upper entirety built-up welding, compared to the CRDM integral replacing technologies of France, engineering reliability is good, maintenance cycle is relatively short, economical 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.Currently, When such seal-weld leakage failure occurs in the country, the repair height of seal-weld relies on external import, and not only expense is quite high It is expensive, and maintenance cycle is longer, seriously affects the operational efficiency of nuclear power station.

Invention content

In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of seal-weld built-up welding repairs to fill Set, it is suitable for welding at the scene, built-up welding and repair seal-weld, substantially reduce operating cost.

To achieve the above object, the present invention provides a kind of seal-weld built-up welding maintenance unit, includes with receiving inner cavity Installation pedestal, clamp system, rotating mechanism and welding module；Have up and down and for for close in the installation pedestal The installation straight slot that soldering and sealing seam carrier penetrates, the receiving inner cavity are connected with installation straight slot, and the installation pedestal, which has to be located at, to be received Hold the rotating mechanism at the lower end of inner cavity and fixes disk；The clamp system is located in the receiving inner cavity of installation pedestal and there are two having Symmetrically arranged clamping stirrup, two clamping stirrups can be moved towards along the radial direction of seal-weld carrier, are used for installation pedestal It is fixed on the periphery of seal-weld carrier；The rotating mechanism is mounted on the lower face of rotating mechanism fixation disk and has can Along the fixed disk of welding campaign of seal-weld carrier to rotate in a circumferential direction；The welding module is installed on the fixed disk of welding movement, simultaneously With weld assembly and wire feed nozzle assembly.

Further, the installation pedestal further includes tubular outer housing and is installed in the upper cover plate of outer housing upper end, The rotating mechanism fixes the lower end that disk is installed in outer housing, and at least one lifting lug is installed on the upper surface of the upper cover plate, The receiving inner cavity by upper cover plate, outer housing and rotating mechanism fix armor at, it is described installation straight slot be located at outer housing inside, And run through upper cover plate and rotating mechanism fixation disk up and down.

Preferably, it is additionally provided with the upper guide pad for being fixed on upper cover plate in the receiving inner cavity of the installation pedestal and fixes The lower guide pad of disk is fixed in rotating mechanism, offers upper pilot hole up and down in the upper guide pad, in lower guide pad Lower pilot hole up and down is offered, the upper pilot hole, lower pilot hole and installation straight slot are coaxially disposed and mutually interconnect 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 mounting plates for being located at two clamping stirrup peripheral sides, Two clamping driving leading screws being located at clamping stirrup both sides and the clamping motor component for being fixed on arc mounting plate, Two pieces of arc mounting plates are all fixed on rotating mechanism and fix on the upper surface of disk, and two clamp driving leading screw both ends and all pass through bearing It is rotatably supported in two pieces of arc mounting plates, is all fixed at the both sides of two clamping stirrups and clamps driving with two respectively The matched clamping of leading screw drives nut；Two clamp in driving leading screw, and one clamps driving leading screw and driven by clamping motor component Turn is dynamic, and the root clamp driving leading screw clamped with another by the first gear unit drive leading screw to be connected, drive it is another Root clamps driving screw synchronous rotation.

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 peripheral surface of seal-weld carrier is in contact.

Preferably, it is installed at least one between two pieces of arc mounting plates and is parallel to the guide rod for clamping driving leading screw, each It is all installed in clamping stirrup and the matched guide sleeve of guide rod.

Further, the rotating mechanism includes being fixed on rotating mechanism to fix the electric rotating machine component of disk, by electric rotating Thermomechanical components drive the lower transmissioning gear rotated, the internal tooth annular slide track with internal gear face, are mutually fixed with internal tooth annular slide track Ring-shaped guide rail slider disc, be fixed on rotating mechanism and fix the ring-shaped guide rail of disk lower face and fix disk and multiple circumferential directions are uniformly distributed The V groove bearings on disk are fixed in ring-shaped guide rail, the lower transmissioning gear is meshed with the internal gear face of internal tooth annular slide track；Institute There is V-type orbit portion, the periphery of each V groove bearings there is V-groove, the internal tooth annular to slide for the periphery for stating internal tooth annular slide track The V-type orbit portion in road is matched with the V-groove of multiple V groove bearings, and the fixed disk of welding movement is slided mounted on ring-shaped guide rail On the lower face of disk.

Further, further include welding motion module, the welding motion module includes having first to move radially portion Radiai adjustment mechanism, the radial movement mechanism that portion is moved radially with second, the axial motion mechanism with axial movement portion, with And the rotating mechanism with rotation section, the radiai adjustment mechanism move fixed block by welding and are mounted on the fixed disk of welding movement Lower face on, described first move radially portion can along seal-weld carrier move radially and with radial movement mechanism it is mutually solid Fixed, described second moves radially portion can moving radially and mutually being fixed with axial motion mechanism, the axis along seal-weld carrier To moving 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 the welding campaign connecting plate for being fixed on welding movement fixed block, opens up In the radial dovetail guide that welding moves the radial dovetail groove on connecting plate and is fixed in radial movement mechanism, the diameter It is matched to dovetail groove and radial dovetail guide and all parallel with the radial direction of seal-weld carrier, the welding movement connection Plate is removably connected with briquetting in the lower end of radial dovetail groove, and the radial direction dovetail guide forms described first and moves radially portion.

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

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

Further, the axial motion mechanism include be fixed on second move radially portion axial movement pedestal, with it is close Soldering and sealing seam carrier axially parallel axial movement driving leading screw, be fixed with the axial nut bearing for being axially moved nut and Mounted on the axial direction electric machine component being axially moved on pedestal, the axial direction electric machine Component driver is axially moved driving leading screw rotation, The both ends for being axially moved driving leading screw are all rotatably supported in be axially moved in pedestal and be axially moved by bearing and be driven Dynamic leading screw is matched with nut is axially moved, and the axial nut bearing passes through rotational motion connecting plate and axial motion mechanism phase It connects, form the axial movement portion.

Preferably, the axial motion mechanism further includes being fixed on axial guidance sliding block, the Yi Jiping of axial nut bearing Row is fixed on axial movement pedestal in the axial the linear guide for being axially moved driving leading screw, the both ends of the axial direction the linear guide In, the axial guidance sliding block is matched with axial the linear guide.

Further, the rotating mechanism includes the rotary electric machine fixed seat being fixedly connected with axial movement portion, is installed on The rotary electric machine component and rolling bearing housing of rotary electric machine fixed seat and the rotating core rotated by rotary electric machine Component driver Axis, the rotation mandrel are rotatably supported in by bearing in rolling bearing housing, and the rotation mandrel is far from rotary electric machine One end of component is connected with welding module by welding module support plate, forms the rotation section.

Further, the welding module includes welding module support plate, welding wire rotation adjusts fixed seat, welding wire rotation is adjusted Locking nub and welding wire adjustment mechanism connecting plate, the weld assembly are mounted in welding module support plate, the wire feed nozzle assembly Mounted on welding wire adjustment mechanism connecting plate, the welding wire rotation adjusts fixed seat and is mounted on weld assembly, the welding wire rotation It is to be rotatably assorted, can be relatively rotated between the two around the axis of weld assembly that adjusting block adjusts fixed seat with welding wire rotation, described Welding wire adjustment mechanism connecting plate and welding wire rotation adjusting block be it is mobile coordinate, between the two can be along the axially opposing shifting of weld assembly It is dynamic.

Preferably, the both ends that the welding wire rotation adjusts fixed seat are equipped with the lug for being located at welding wire rotation adjusting block both sides Portion is designed with arc adjustment hole and turn hole on each lug portions, and the both ends of the welding wire rotation adjusting block are respectively equipped with shaft, The turn hole that the shaft at welding wire rotation adjusting block both ends rotates adjusting fixed seat both ends with welding wire respectively matches, constitutes rotation fortune Dynamic, the lug portions are detachably connected with welding wire rotation adjusting block by the screw being threaded through in arc adjustment hole.

Preferably, it offers the welding wire parallel with the axial direction of weld assembly on the welding wire rotation adjusting block and adjusts dovetail Slot, the welding wire adjustment mechanism connecting plate are equipped with the welding wire parallel with the axial direction of weld assembly and adjust dovetail guide, the weldering Silk adjusts dovetail guide and is matched with welding wire adjusting dovetail groove.

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

Further, two axis welding wire adjustment mechanisms, two axis welding wire tune are also equipped on the welding wire adjustment mechanism connecting plate The output end of complete machine structure is connected with welding wire adjustment perfoming block, and welding wire adjustment perfoming block can be moved along the axial of weld assembly is parallel to Perpendicular to the axial movement of weld assembly, the welding wire, which adjusts, is equipped with welding wire adjustment link block, weldering in perfoming block on dynamic and edge Ignition tip mounting blocks are installed on silk adjustment link block, the wire feed nozzle assembly is fixed on ignition tip mounting blocks.

Further, the two axis welding wire adjustment mechanism includes the welding wire adjustment mounting plate and welding wire of two pieces of parallel arrangements Parallel parallel of the axial direction of component to driving leading screw and vertically to gear shaft, with parallel to driving, leading screw is matched 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 peace Parallel to electric machine assembly and vertically to electric machine assembly in loading board, two pieces of welding wire adjustment mounting plates are all fixed on welding wire adjustment mechanism Connecting plate, it is described it is parallel to driving leading screw both ends and vertically all rotatably supported to the both ends of gear shaft by copper sheathing In two pieces of welding wires adjust mounting plate, it is described it is parallel rotated to driving leading screw from parallel driven to electric machine assembly, it is described vertically 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 Directly to driving circular rack be movably threaded through it is parallel into the sliding eye of nut guide pad and with vertical to gear shaft phase Engagement, the welding wire adjustment perfoming block are fixed on vertically to one end of driving circular rack.

Preferably, described to be vertically fixed with welding wire adjustment limited block, the welding wire adjustment to the other end of driving circular rack Perfoming block and welding wire adjustment limited block are all located at the outside of sliding eye.

Further, the welding module further includes the wire feeding disc and wire feed being mounted on welding movement fixed disk lower face Machine, the wire feed nozzle assembly are connected by wire-feeding pipe with wire-feed motor, and the wire-feed motor is installed on for conveying on wire feeding disc Welding wire.

Preferably, range sensor is installed on the lower face of the fixed disk of welding movement.

Further, the periphery of the fixed disk of welding movement is installed with mounting blocks outstanding, is fixed on the mounting blocks Extend up and down and positioned at the line bracket of walking of installation pedestal peripheral side, the lower face of the fixed disk of welding movement is equipped with cable Fixed block.

As described above, seal-weld built-up welding maintenance unit of the present invention, has the advantages that：

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

Description of the drawings

Fig. 1 be this application involves seal-weld built-up welding maintenance unit structural schematic diagram.

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

Fig. 3 is the connection diagram that clamp system and rotating mechanism fix disk with rotating mechanism in the application.

Fig. 4 is the internal structure chart of rotating mechanism in the application.

The A that Fig. 5 is Fig. 4 encloses enlarged drawing.

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

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

Fig. 8 is the structural schematic diagram of rotating mechanism in the application.

Fig. 9 be this application involves seal-weld built-up welding maintenance unit usage state diagram.

Component label instructions

2 lifting lug of guide pad on 1

3 upper cover plate, 4 outer housing

5, which walk 6 rotating mechanism of line bracket, fixes disk

7 circular cowlings 8 welding movement fixed block

9 welding movement 10 radial motion pedestals of connecting plate

The collateral plate of 11 radial motion cover board, 12 radial support

13 briquettings 14 are axially moved connecting plate

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

17 are axially moved 18 axial axis end seal lid of pedestal

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

21 rotary electric machine cover, 22 rotary electric machine fixed seat

23 rolling bearing housing, 24 rotation mandrel

The rotation of 25 welding module support plate, 26 welding wire adjusts fixed seat

27 welding wires rotate 271 arc adjustment hole of adjusting block

28 welding wires adjust 29 dovetail geosynclinal block of dovetail guide

30 welding video monitoring component, 31 temperature sensor

32 welding wire adjustment mechanism connecting plate, 33 welding wire adjusts mounting plate

34 vertically to electric machine assembly 35 vertically to driving circular rack

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

38 is vertically parallel to electric machine assembly to pinion gear 39

40 is parallel to the installation straight slot of pinion gear 41

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

44 welding wires adjust 45 wire feed nozzle assembly of link block

46 weld assembly, 47 rotary spacing switchs

48 wire feeding disc, 49 wire feeding disc fixed plate

50 cable fixed block, 51 wire-feed motor

52 welding movement 53 clamping motor components of fixed disk

54 arc mounting plate, 55 clamping stirrup

56 elastic compression plate, 57 guide sleeve

58 guide rods 59 clamp driving nut

60 synchronous pulley, 61 synchronous toothed belt

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

64 times guide pad 65 clamps limit switch

66 clamp limit installation 67 V groove bearings of plate

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

691 internal gear face, 70 range sensor

71 ring-shaped guide rails fix 72 rotary stopper of disk switch

73 rotary stopper plectrums 74 drive gear

75 electric rotating machine fixed seat, 76 electric rotating machine component

77 driving big belt wheels 78 drive small pulley

79 driving 80 clamping motor mounting plates of toothed belt

81 rotary gear shaft, 82 upper transfer gear

The radial nut bearing of 83 lower transmissioning gear 84

85 86 radial motor components of radial pinion gear

The 87 radially fixed collateral plates of radial gear wheel 88

89 90 radial alignment guide rails of radial limit switch

91 radial motions drive the radial limit plectrum of leading screw 92

The axial pinion gear of 93 radial guidance sliding block 94

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

97 are axially moved 98 axial limiting plectrum of nut

99 axial nut bearing, 100 axial guidance sliding block

101 axial the linear guides 102 are axially moved driving leading screw

103 axial limiting switch, 104 rotary electric machine component

105 it is parallel to gear wheel 106 vertically to gear wheel

107 welding wires adjust lateral 108 welding wire of plate and adjust perfoming block

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

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

113 stroke casing, 114 pressure hull

115 116 liang of axis welding wire adjustment mechanisms of radial dovetail guide

117 installation pedestal, 118 clamp system

119 rotating mechanism, 120 welding module

121 welding motion modules

Specific implementation mode

Illustrate that embodiments of the present invention, those skilled in the art can be by this explanations by particular specific embodiment below Content disclosed by book understands other advantages and effect of the present invention easily.

It should be clear that structure, ratio, size etc. that this specification attached drawing is painted, only to coordinate specification it is revealed in Hold, so that those skilled in the art understands and reads, is not limited to the enforceable qualifications of the present invention, therefore does not have skill Essential meaning in art, the modification of any structure, the change of proportionate relationship or the adjustment of size can be produced not influencing the present invention Under raw effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents can be covered.Together When, cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be merely convenient to chat It states clearly, rather than to limit the scope of the invention, relativeness is altered or modified, and technology is being changed without essence It inside holds, when being also considered as the enforceable scope of the present invention.

The application provides a kind of seal-weld built-up welding maintenance unit, as shown in figures 1 and 3 comprising has receiving inner cavity Installation pedestal 117, clamp system 118, rotating mechanism 119 and welding module 120；Have in the installation pedestal 117 upper Lower perforation and the installation straight slot 41 for being penetrated for seal-weld carrier, the clamp system 118 and the quilt of rotating mechanism 119 The installation straight slot 41 runs through, therefore installation pedestal 117, clamp system 118 and rotating mechanism 119 are hollow type loop configuration； Receiving inner cavity in the installation pedestal 117 is connected with installation straight slot 41, and installation pedestal 117 has under receiving inner cavity Rotating mechanism at end fixes disk 6；The clamp system 118 is located in the receiving inner cavity of installation pedestal 117 and has there are two right Claim the clamping stirrup 55 of setting, two clamping stirrups 55 that can be moved towards along the radial direction of seal-weld carrier, for base will to be installed Seat 117 is fixed on the periphery of seal-weld carrier, to be fixed entire seal-weld built-up welding maintenance unit and be positioned at sealing On weld seam carrier；The rotating mechanism 119 is mounted on the lower face of rotating mechanism fixation disk 6 and has can be along seal-weld Disk 52 is fixed in the welding campaign of carrier to rotate in a circumferential direction；The welding module 120 is installed on the fixed disk 52 of welding movement and has Weld assembly 46 and wire feed nozzle assembly 45, the welding torch in weld assembly 46 are oppositely arranged with the wire feeding mouth in wire feed nozzle assembly 45.

This application involves seal-weld built-up welding maintenance unit be suitable for various seal-welds 112 built-up welding repair and labour Before be welded to connect, in following embodiment, seal-weld built-up welding maintenance unit be used for nuclear power station control rod drive mechanism (CRDM) in The built-up welding of seal-weld 112 is repaired and is welded to connect before using as a servant, therefore the seal-weld carrier is the outer of CRDM strokes casing 113 The outer wall of wall or pressure hull 114 as shown in figure 9, the stroke casing 113 or pressure hull 114 be at cylindric, therefore is installed Straight slot 41 is installed also cylindrical in pedestal 117, all there is seal-weld on the outer wall of stroke casing 113 or pressure hull 114 112.In use, as shown in figure 9, installation pedestal 117 is fixed on outer wall or the pressure resistance of stroke casing 113 by clamp system 118 On the outer wall of shell 114, to integrally fix to clamp seal-weld built-up welding maintenance unit in the outer wall of stroke casing 113 or resistance to The outer wall of pressure shell body 114, therefore installation pedestal 117 and clamp system 118 collectively form and fix to clamp module；Later, by whirler Welding moves the circumferential movement for fixing disk 52 by the automatic positioning of welding module 120 at seal-weld 112 in structure 119, then passes 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 It is welded to connect operation before welding maintenance activity and labour, and the application is easy to operate, the set-up time is short, built-up welding maintenance time and labour Preceding weld interval effectively shortens, and to greatly shorten the maintenance cycle of seal-weld 112, effectively improves the operation effect of nuclear power station Rate, and substantially reduce repair 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 function module in built-up welding maintenance unit carry each motion and each function module Dynamic loading in weight and operation process.In the application, installation pedestal 117 is used with lower structure：As shown in Figure 1, installation pedestal 117 further include cylindrical outer housing 4 and are installed in the upper cover plate 3 of 4 upper end of outer housing, and the outer housing 4 is by four pieces of arcs Plate is spliced and is fixed on rotating mechanism and fixes at the circumferential edges of 6 upper end of disk；It is fixed on the upper surface of the upper cover plate 3 There are four circumferentially uniformly distributed lifting lugs 2, realize the lifting of seal-weld built-up welding maintenance unit；The receiving inner cavity is by upper cover plate 3, outer Shell 4 and rotating mechanism are fixed disk 6 and are surrounded, and the installation straight slot 41 is located at the inside of outer housing 4 and runs through upper cover plate 3 up and down Disk 6 is fixed with rotating mechanism, therefore it is in annular shape that upper cover plate 3 and rotating mechanism, which fix disk 6,.

After seal-weld built-up welding maintenance unit is lifted by crane by four lifting lugs 2, it is inserted in stroke casing 113 or pressure resistance from top to bottom Shell 114；In order to ensure the accuracy moved when the installation of seal-weld built-up welding maintenance unit, as shown in figures 1 and 3, the peace It fills to be additionally provided with the upper guide pad 1 for being fixed on 3 lower end of upper cover plate in the receiving inner cavity of pedestal 117 and be fixed on rotating mechanism and consolidate The lower guide pad 64 of 6 upper end of price fixing offers upper pilot hole up and down in the upper guide pad 1, is opened in lower guide pad 64 Equipped with lower pilot hole up and down, the upper pilot hole, lower pilot hole and installation straight slot 41 are coaxially disposed and mutually interconnect It is logical, play guiding role.More preferably, the upper guide pad 1 is at the lower end of upper pilot hole and lower guide pad 64 is in lower guiding It is all machined with long chamfering at the lower end in hole, forms chamfered section, therefore the opening of the opening of upper pilot hole lower end and lower pilot hole lower end All it is in horn-like, is sleeved on from top to bottom on stroke casing 113 or pressure hull 114 conducive to seal-weld built-up welding maintenance unit.Separately Outside, the upper guide pad 1 and lower guide pad 64 are made of the smaller nonmetallic materials of friction coefficient, it is ensured that not to stroke casing 113 or the outer wall of pressure hull 114 cause damages or cut, and make that guide function is smooth, stablizes.The upper guide pad 1 is under There is guide pad 64 plurality of specifications, upper guide pad 1 and upper cover plate 3, lower guide pad 64 and rotating mechanism to fix disk 6 and all pass through screw It is detachably connected, convenient for being replaced according to different maintenance objects.

Further, as shown in figure 3, two clamping stirrups 55 are designed using half open form (HALF types), the clamp system 118 further include that two pieces of arc mounting plates for being located at two 55 peripheral sides of clamping stirrup 54, two are located at clamping stirrup At 55 both sides and all horizontal-extending clamping drives leading screw 62 and is fixed on the clamping motor component 53 of arc mounting plate 54； Two pieces of arc mounting plates 54 be arranged symmetrically and all by positioning pin location and installation rotating mechanism fix disk 6 upper surface on, The cylindrical portion and seal-weld carrier of 55 centre of cylindrical portion and each clamping stirrup among every piece of arc mounting plate 54 are coaxial Line is arranged；Two clamp the side that 62 both ends of driving leading screw are all rotatably supported in two pieces of arc mounting plates 54 by rolling bearing In interstitial hole at side；All being fixed with to clamp with two respectively at the both sides of two clamping stirrups 55 drives leading screw 62 matched Driving nut 59 is clamped, driving leading screw 62 is clamped with driving nut 59 is clamped and constitutes feed screw nut pair, and every clamps driving silk The direction of driving 59 threaded engagement of nut is clamped in thick stick 62 and two clamping stirrups 55 on the contrary, to realize that clamping driving leading screw 62 exists While rotation, two clamping stirrups 55 be to move toward one another or backwards to moving, 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 rotated by the driving of clamping motor component 53, and should Root clamps driving leading screw 62 and is connected with another clamping driving leading screw 62 by the first gear unit, another clamping is driven to drive Dynamic leading screw 62 rotates synchronously.The clamping driving leading screw 62 is trapezoidal screw, and it is trapezoidal nut, trapezoidal silk to clamp driving nut 59 Thick stick has self-locking function, it can be ensured that the clamping of seal-weld built-up welding maintenance unit in the case where clamping motor component 53 powers off It is fixed.

More preferably, first gear unit is used with lower structure：As shown in figure 3, two clamp driving leading screw 62 one Synchronous pulley 60 is separately installed at end, two synchronous pulleys 60 are connected by synchronous toothed belt 61 and are driven, and realize that two clamp drive The synchronous rotation of dynamic leading screw 62.The clamping motor component 53 is mounted on clamping motor mounting plate 80, clamping motor mounting plate 80 are mounted on one piece of arc mounting plate 54, and clamping motor component 53 drives the clamping to drive leading screw by the second gear unit 62 rotations；Second gear unit is used with lower structure：The other end for clamping driving leading screw 62 is equipped with the big band of driving The motor shaft end of wheel 77, clamping motor component 53 is equipped with driving small pulley 78, and driving small pulley 78 and driving big belt wheel 77 are logical The connection transmission of toothed belt of overdriving 79.Therefore, when the motor rotation in clamping motor component 53, by driving 78 He of small pulley It drives toothed belt 79 that driving big belt wheel 77 is driven to rotate, and then drives two to clamp driving leading screw 62 and rotate synchronously, and pass through Clamping driving two clamping stirrups 55 of driving of nut 59 move towards or backwards to movements, to realize that clamp system 118 is automatically right The action of middle clamp or release.

Preferably, as shown in figure 3, being all installed with two between the both sides of two pieces of arc mounting plates 54 is parallel to clamping driving The guide rod 58 of leading screw 62, at the side of every piece of arc mounting plate 54, two guide rods 58, which are located at, clamps driving leading screw 62 Upper side and lower side, 55 both sides of each clamping stirrup be installed with 58 matched guide sleeve 57 of guide rod, to for clamp Clip 55 provides guiding role along the axial movement for clamping driving leading screw 62.Every piece of arc mounting plate 54 is the two of its cylindrical portion Side, each clamping stirrup 55 are designed in the both sides of its cylindrical portion in flat support portion, the support portion of arc mounting plate 54 It is used to support clamping driving leading screw 62 and guide rod 58, the support portion of clamping stirrup 55 is for installing clamping driving nut 59 and being oriented to Set 57.The a plurality of elastic compression plate 56 extended up and down is installed on the inner peripheral surface of 55 intermediate cylindrical portion of each clamping stirrup, when After clamping stirrup 55 is clamped on seal-weld carrier, the peripheral surface of elastic compression plate 56 and seal-weld carrier is in contact, therefore Clamping stirrup 55 locks the outer wall of stroke casing 113 or pressure hull 114 by elastic compression plate 56, and coupling mechanism force is equal Even, stress surface is big, and firm grip is reliable, and can prevent clamping stirrup 55 from damaging the outer of stroke casing 113 or pressure hull 114 Wall.Clamping stirrup 55 is detachably connected with arc mounting plate 54 also by screw, and clamping stirrup 55 is configured with plurality of specifications, can root It is replaced according to different maintenance objects.It is also installed on the upper surface of the rotating mechanism fixation disk 6 and is pressed from both sides positioned at two Plate 66 is mounted in the clamping in 55 outside of tight clip, clamps limit installation plate 66 and is located between two pieces of arc mounting plates 54, clamps Limit installation plate 66 is respectively arranged at the both ends of a side end face of clamping stirrup 55 at it and clamps limit switch 65, two Clamping stirrup 55 is limited towards clamping limit plectrum 63 is respectively arranged on the side end face for clamping limit installation plate 66 by clamping Electrical limit when two clamping stirrups 55 carry out open and close movement can be achieved in position plectrum 63 and the mutual cooperation for clamping limit switch 65 Control accuracy is improved in position.

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 provides the circumferencial direction along seal-weld carrier for built-up welding operation or Precision Machining operation Movement.As shown in Figures 3 to 5, rotating mechanism 119 includes being fixed on rotating mechanism to fix the electric rotating machine component 76 of disk 6, by revolving Lower transmissioning gear 83, the internal tooth annular slide track 69 and internal gear with internal gear face 691 of the driving rotation of rotating motor component 76 69 mutually fixed ring-shaped guide rail slider disc 68 of shape slideway is fixed on the ring-shaped guide rail fixation disk that rotating mechanism fixes 6 lower face of disk 71 and multiple circumferential directions be distributed on the V groove bearings 67 that ring-shaped guide rail fixes disk 71 lower end, the lower transmissioning gear 83 and internal gear The internal gear face 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 periphery of the V-type orbit portion of annular, each V groove bearings 67 has V-groove, the V-type orbit portion of the internal tooth annular slide track 69 It matched with the V-groove of multiple V groove bearings 67, constitute sliding pair, multiple V groove bearings 67 are that the rotation of internal tooth annular slide track 69 carries For being oriented to；The fixed disk 52 of welding movement is mounted on the lower face of ring-shaped guide rail slider disc 68；Therefore, whole rotating mechanism 119 fix disk 71 by ring-shaped guide rail is mounted on the lower section that rotating mechanism fixes disk 6.Preferably, the fixed disk of welding movement 52 with Ring-shaped guide rail slider disc 68 is detachably connected by multiple screws, it can be achieved that fast quick-detach and replacement.

The electric rotating machine component 76 is mounted on the upper surface that rotating mechanism fixes disk 6 by electric rotating machine fixed seat 75 On, electric rotating machine component 76 drives lower transmissioning gear 83 to rotate by third gear unit, the concrete structure of third gear unit For：As shown in Figure 4 and Figure 5, third gear unit includes the rotary gear shaft 81 extended up and down, is fixed on 81 upper end of rotary gear shaft Transmission gear 82 and the driving 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 driving gear 74 is meshed with upper transfer gear 82, constitutes gear driving pair.When electric rotating machine component 76 When rotation, driving gear 74 is driven to rotate synchronously, 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 internal gear face 691 of lower transmissioning gear 83 and internal tooth annular slide track 69 Slideway 69 rotates, final to realize that internal tooth annular slide track 69 drives ring-shaped guide rail slider disc 68, welds the fixed disk 52 of movement, is following Weld the movement of motion module 121 and welding module 120 along the circumferencial direction of seal-weld carrier.The internal tooth annular is slided Road 69 is capable of providing higher load-carrying ability, service life and rigidity.Preferably, as shown in figure 3, ring-shaped guide rail fixes the lower end of disk 71 Face is being provided with rotary stopper switch 72 at its outer edge side, welds movement and fixes the upper surface of disk 52 outside it Rotary stopper plectrum 73 is installed, the mutual cooperation that 72 chord turn limit plectrum 73 is switched by rotary stopper can be achieved at edge side The alarm of rotating mechanism 119 limits and school zero.

Further, as shown in Figure 1, the outer edge side that disk 52 is fixed in the welding movement is installed with mounting blocks outstanding, It is fixed on the mounting blocks and extends up and down and walk line bracket 5 positioned at 117 peripheral side of installation pedestal, welding moves fixed disk 52 Lower face cable fixed block 50 is installed, walk cabling of the line bracket 5 for cable in seal-weld built-up welding maintenance unit, cable Fixed block 50 is used for the fixation of cable in seal-weld built-up welding maintenance unit, makees to can avoid seal-weld built-up welding maintenance unit Cable winds when industry.Furthermore welding moves and is equipped with range sensor 70 on the lower face for fixing disk 52, is used for seal-weld heap Weld height and position detection when maintenance unit installation.Meanwhile rotating mechanism 119 further includes being located at ring-shaped guide rail to fix 71 periphery of disk The circular cowling 7 of side, which is fixed on the lower end that rotating mechanism fixes disk 6, for preventing the entrance such as external debris or dust In the parts such as internal tooth annular slide track 69, ring-shaped guide rail slider disc 68, ensure the accuracy that rotating mechanism 119 moves.

Further, the seal-weld built-up welding maintenance unit further includes welding motion module 121, as shown in Figure 1, described It includes moving radially the radiai adjustment mechanism in portion, the radial direction for moving radially portion with second with first to weld motion module 121 Motion, the axial motion mechanism with axial movement portion and the rotating mechanism with rotation section, the radiai adjustment machine Structure moves fixed block 8 on the lower face that welding moves fixed disk 52 by welding, to will entirely weld motion module 121 are mounted on the lower end that disk 52 is fixed in welding movement；Described first move radially portion can along the moving radially of seal-weld carrier, And it is 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 It is perpendicular to state rotation section and axial movement portion, the welding module 120 is mutually fixed with rotation section.In the welding motion module 121, Radiai adjustment mechanism is used in a wide range of interior position for adjusting welding module 120 in seal-weld carrier radially, to coordinate Adapt to the seal-weld carrier of various outer diameter；Radial movement mechanism is used to adjust welding module 120 in sealing welding in a small range 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 match, realizes being accurately positioned for welding module 120；Rotating mechanism Inclination angle for adjusting welding module 120.The preferred embodiment for welding 121 Zhong Ge mechanisms of motion module is as follows.

As shown in Figure 1, radiai adjustment mechanism includes the welding campaign connecting plate 9 for being fixed on welding movement fixed block 8, opens up In the radial direction that welding moves the radial dovetail groove on connecting plate 9 and is fixed on the radial motion pedestal of radial movement mechanism Dovetail guide 115, the radial direction dovetail groove and radial dovetail guide 115 match and all with the radial phase of seal-weld carrier Parallel, the welding movement connecting plate 9 is removably connected with briquetting 13, the radial direction in the lower end of radial dovetail groove by screw Dovetail guide 115 forms described first and moves radially portion.It is carried seal-weld is inserted in the lifting of seal-weld built-up welding maintenance unit Before on body, first briquetting 13 is removed, is led according to the radial dovetail of specific outer diameter adjustment of live seal-weld carrier to be repaired Position of the rail 115 in radial dovetail groove, so as to adjust radial movement mechanism, axial motion mechanism, rotating mechanism and welding mould Specific location of the block 120 in seal-weld carrier radially, after adjustment, then in the lower end of radial dovetail groove installation briquetting 13, position of the radial dovetail guide 115 in radial dovetail groove is locked, is later again inserted in seal-weld built-up welding maintenance unit close Carrier is stitched in soldering and sealing.

As shown in figures 1 to 6, radial movement mechanism includes being fixed on first to move radially the radial motion pedestal in portion, edge The radial motion driving leading screw 91 of seal-weld carrier radially extended, the radial 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 pedestal 10, the radially fixed collateral plate 88 and the collateral plate of radial support for being installed in 10 both ends of radial motion pedestal respectively 12, the radial motor component 86 drives radial motion driving leading screw 91 to rotate, the both ends of the radial motion driving leading screw 91 It is all rotatably supported in radially fixed collateral plate 88 and the collateral plate of radial support 12 by bearing, radial motion drives leading screw 91 match with radial motion nut, and the radial direction nut bearing 84 is by being axially moved connecting plate 14 and axial motion mechanism phase It connects, form described second and move radially portion.The radial motor component 86 is located at the side of radial motion pedestal 10, is fixed on Radially fixed collateral plate 88, and radial motor component 86 drives radial motion that leading screw 91 is driven to rotate by the 4th gear unit； The concrete structure of 4th gear unit is：4th gear unit includes on the motor output shaft of radial motor component 86 Radial pinion gear 85 and the radial gear wheel 87 that 91 end of leading screw is driven mounted on radial motion, radial pinion gear 85 and diameter It is meshed to gear wheel 87, constitutes gear driving pair.When radial motor component 86 rotates, radial pinion gear 85 is driven synchronously to turn It is dynamic, to drive radial motion that leading screw 91 is driven to rotate by radial gear wheel 87, realize radial motion nut, radial nut branch The linear movement of seat 84, axial motion mechanism, rotating mechanism and the radially movable driving leading screw 91 of welding module 120, to cover The radial direction of entire seal-weld 112 is covered, and is that weld assembly 46 provides weave control or welding arc control welding the when of repairing Movement.

In order to improve the stability that radial nut bearing 84 moves radially, as shown in fig. 6, radial movement mechanism further includes solid Due to radial nut bearing 84 radial guidance sliding block 93 and be parallel to radial motion drive leading screw 91 radial alignment guide rail 90, the both 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 matches.In addition, radial limit switch 89 is installed on 10 1 medial surface of radial motion pedestal, radial nut bearing 84 Both ends of the surface on be fitted with radial limit plectrum 92, the extensions of two radial radially movable driving leading screws 91 of limit plectrum 92 Direction is oppositely arranged, and radial 84 diameter of nut bearing is realized by the mutual cooperation of radial limit switch 89 and radial limit plectrum 92 To the electric limiting of movement.As shown in Figure 1, radial axle end seal lid is installed on the outer surface of radially fixed collateral plate 88, it is radial The top of motion base 10 is provided with radial motion cover board 11, so that the equal envelope of whole parts in radial movement mechanism In in radial motion pedestal 10 and radial motion cover board 11, compact in design, delicate structure being capable of effective protection radial motion machine Each parts in structure.It is also associated with axial fortune on the mutually fixed axial movement connecting plate in radial 84 upper surface of nut bearing 14 Dynamic cover board 15, axial motion mechanism are all mounted on and are axially moved on cover board 15, thus by axial motion mechanism and the company of 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 mounted on be axially moved Axial direction electric machine component 95 on pedestal；The axial movement cover board 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 pedestal 17 of U-shaped half pack arrangement, is installed in axial movement pedestal 17 both ends respectively is collateral Plate 19 and axial support-side support plate 16,95 driving axial of the axial direction electric machine component movement driving leading screw 102 rotate, the axial direction The both ends of movement 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 matched with nut 97 is axially moved, 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 The collateral plate 19 of axial restraint is fixed in the lower end of dynamic pedestal 17, and axial direction electric machine component 95 passes through the 5th gear unit drive shaft It is rotated to movement driving leading screw 102；The concrete structure of 5th gear unit is：5th gear unit includes being mounted on axial direction electric machine Axial pinion gear 94 on the motor output shaft of component 95 and the axial direction mounted on 102 end of axial movement driving leading screw are big Gear 96, axial pinion gear 94 and axial gear wheel 96 are meshed, constitute gear driving pair.When axial direction electric machine component 95 rotates, It drives axial pinion gear 94 to rotate synchronously, is rotated to move driving leading screw 102 by 96 driving axial of axial gear wheel, it is real It is now axially moved nut 97, axial nut bearing 99, rotating mechanism and welding module 120 and drives leading screw 102 axially movable Linear movement, for welding module 120 provide upper and lower directions movement, when realizing multiple-bead deposit, welding module 120 and sealing welding The different requirement for height in 112 surfaces is stitched, and is that weld assembly 46 provides weave control or welding arc control movement welding the when of repairing, To eliminate the electric arc rough burning because of caused by built-up welding injustice, 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 further includes solid Due to axial nut bearing 99 axial guidance sliding block 100 and be parallel to be axially moved driving leading screw 102 axial straight line lead Rail 101, the both ends of the axial direction the linear guide 101, which are fixed on, to be axially moved in pedestal, the axial guidance sliding block 100 and axial direction The linear guide 101 matches.Axial limiting switch 103, axial nut are installed in addition, being axially moved on 17 1 medial surface of pedestal Axial limiting plectrum 98 is fitted in the both ends of the surface of bearing 99, two axial limiting plectrums 98 drive leading screw axially movable 102 extending direction is oppositely arranged, and axial screw is realized by the mutual cooperation of axial limiting switch 103 and axial limiting plectrum 98 The electric limiting that female bearing 99 is axially moved.As shown in Figure 1, being also equipped with axis on the outer surface of the collateral plate of the axial restraint 19 To shaft end capping 18.

As depicted in figs. 1 and 2, rotating mechanism includes the rotary electric machine fixed seat 22 being fixedly connected with axial movement portion, peace It rotary electric machine component 104 and rolling bearing housing 23 loaded on rotary electric machine fixed seat 22 and is driven by rotary electric machine component 104 The dynamic rotation mandrel 24 of turn, 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 by bearing in rolling bearing housing 23, the rotation mandrel 24 one end far from rotary electric machine component 104 are connected with welding module 120 by welding module support plate 25, form described turn Dynamic portion.In the present embodiment, the motor output shaft of rotary electric machine component 104 directly fixes with rotation mandrel 24 phase, directly drives and turns Moving mandrel 24 rotates, to adjust the inclination angle of welding module 120, to adapt to stroke casing 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 The plane and the arc surface of seal-weld 112 that weld assembly 46 and wire feed nozzle assembly 45 are constituted when industry are as vertical as possible.Described turn It is also equipped with rotary spacing disk in moving mandrel 24, two square holes for being separated by rotary spacing angle are carved on rotary spacing disk, rotates Rotary spacing switch 47 is installed, when rotary spacing disk is rotated together with rotation mandrel 24, by turning in motor fixing seat 22 The extreme position for matching detectable rotation mandrel 24 of dynamic limit switch 47 and square hole, for different seal-weld 112, if Different rotary spacing disks is set, 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, is used for the protection of rotary electric machine component 104.

Further, as depicted in figs. 1 and 2, the welding module 120 includes welding module support plate 25, welding wire rotation Adjust fixed seat 26, welding wire rotation adjusting block 27 and welding wire adjustment mechanism connecting plate 32, the welding module support plate 25 with 24 phase of rotation mandrel is fixed, and to which welding module 120 to be mounted on the end face of rotation mandrel 24, the weld assembly 46 is installed In welding module support plate 25, the wire feed nozzle assembly 45 is mounted on welding wire adjustment mechanism connecting plate 32, and the welding wire turns The dynamic fixed seat 26 that adjusts is mounted on weld assembly 46, and the welding wire rotation adjusting block 27 adjusts fixed seat 26 with welding wire rotation and is 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 Rotation adjusting block 27 is mobile cooperation, can be moved between the two along the axially opposing of weld assembly 46.

Welding wire rotates the structure that adjusting block 27 is rotatably assorted with welding wire rotation adjusting fixed seat 26：As shown in Fig. 2, welding wire The both ends that rotation adjusts fixed seat 26 are equipped with the lug portions for being located at 27 both sides of welding wire rotation adjusting block, are designed on each lug portions The both ends of arc adjustment hole 271 and turn hole, the welding wire rotation adjusting block 27 are respectively equipped with shaft, and welding wire rotates adjusting block 27 The turn hole that the shaft at both ends rotates 26 both ends of adjusting fixed seat with welding wire respectively matches, constitutes rotational motion；Adjusting terminates Afterwards, lug portions are connected with welding wire rotation adjusting block 27 by the screw being threaded through in arc adjustment hole 271, lock angle of rotation The adjusting of rotational angle can be achieved in degree in the range of arc adjustment hole 271.Welding wire rotates adjusting block 27 and welding wire adjustment mechanism Connecting plate 32 moves the structure coordinated：As shown in Fig. 2, being fixed with dovetail geosynclinal block 29, dovetail groove on welding wire rotation adjusting block 27 The welding wire parallel with the axial direction of weld assembly 46 is offered in block 29 adjusts dovetail groove, the welding wire adjustment mechanism connecting plate 32 It is equipped with the welding wire parallel with the axial direction of weld assembly 46 and adjusts dovetail guide 28, the welding wire adjusts dovetail guide 28 and welding wire Dovetail groove is adjusted to match.Pass through being rotatably assorted between welding wire adjustment mechanism connecting plate 32 and welding wire rotation adjusting fixed seat 26 Coordinate with mobile, wire feed position can be adjusted on a large scale according to 46 structure of different weld assemblies, 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；Welding video monitoring component 30 can select CCD camera, positioning and weldering when for the installation of seal-weld built-up welding maintenance unit Real time monitoring when connecing；Temperature sensor 31 is used to detect bath temperature when welding.

Further, as depicted in figs. 1 and 2, two axis welding wire tune are also equipped on the welding wire adjustment mechanism connecting plate 32 The output end of complete machine structure 116, two axis welding wire adjustment mechanisms 116 is connected with welding wire adjustment perfoming block 108, which adjusts perfoming block 108 can be along the axial movement for being parallel to weld assembly 46 and along the axial movement perpendicular to weld assembly 46, the welding wire tune Welding wire adjustment link block 44 is installed in whole perfoming block 108, ignition tip mounting blocks 43, institute are installed on welding wire adjustment link block 44 It states wire feed nozzle assembly 45 to be fixed on ignition tip mounting blocks 43, realizes the two axis automatic adjustment of welding wire, greatly improve welding wire position Degree of regulation, the quality of weld job is provided.

Two axis welding wire adjustment mechanisms 116 are preferably used with lower structure：As shown in Figure 2 and Figure 8, two axis welding wire adjustment mechanism 116 include the welding wires adjustment mounting plates 33, parallel with the axial direction of weld assembly 46 parallel to driving silk of two pieces of parallel arrangements Thick stick 110 and vertically to gear shaft 109, with it is parallel to driving leading screw 110 it is matched it is parallel to nut guide pad 111, with Perpendicular vertical of the axial direction of weld assembly 46 is to driving circular rack 35 and is fixed on parallel on welding wire adjustment mounting plate 33 To electric machine assembly 39 and vertically to electric machine assembly 34.The both ends of two pieces of welding wires adjustment mounting plates 33, which are respectively fixed with, to be mutually parallel 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 is all fixed on welding wire adjustment mechanism connecting plate 32 to which two pieces of welding wires are adjusted mounting plate 33.It is described it is parallel to It drives the both ends of leading screw 110 and two pieces of welding wires is all vertically rotatably supported in by copper sheathing to the both ends of gear shaft 109 Adjust mounting 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, Described vertically driven to electric machine assembly 34 by the 7th gear unit vertically rotates to gear shaft 109, described parallel to spiral shell Sliding eye is offered in female guide pad 111, it is described vertically parallel to nut guiding to driving circular rack 35 to be movably threaded through It is meshed to gear shaft 109 in the sliding eye of block 111 and with vertical, constitutes gear driving pair, the welding wire adjustment executes Block 108 is fixed on vertically to one end of driving circular rack 35.

In the present embodiment, the 6th gear unit include be fixed on it is parallel on the parallel motor output shaft to electric machine assembly 39 To pinion 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 pinion 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 pinion gear 38 and is fixed on vertically to the vertical to gear wheel of 109 end of gear shaft 106, vertically it is meshed to gear wheel 106 with vertical to pinion gear 38, constitutes gear driving pair.It is parallel to nut guide pad 111 In with the parallel screw thread for constituting lead screw pair 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 vertically all flat perpendicular to being made of weld assembly 46 and wire feed nozzle assembly 45 to driving circular rack 35 Face.Therefore, when it is parallel rotated to electric machine assembly 39 when, by parallel to pinion gear 40 and parallel being meshed to gear wheel 105 Can drive it is parallel to driving leading screw 110 rotate, to realize it is parallel to nut guide pad 111, vertically to driving circular rack 35, with And welding wire adjust perfoming block 108 along the linear movement for being parallel to 46 axis of weld assembly, at this point, vertically to driving circular rack 35 with It is vertically opposite sliding to gear shaft 109.When vertically being rotated to electric machine assembly 34, by vertically to pinion gear 38 and hang down It can directly be driven vertically to the rotation of gear shaft 109, to realize vertically to driving circular rack to being meshed for gear wheel 106 35 and welding wire adjust perfoming block 108 along perpendicular to the linear movement for being made of plane weld assembly 46 and wire feed nozzle assembly 45. Described to be vertically fixed with welding wire adjustment limited block 36 to the other end of driving circular rack 35, the welding wire adjusts 108 He of perfoming block Welding wire adjustment limited block 36 is all located at the outside of sliding eye, realizes the limit vertically moved to driving circular rack 35, prevent its from Deviate from sliding eye.

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

When the control rod drive mechanism of seal-weld built-up welding maintenance unit Mr. Yu's heap-type, as shown in figure 9, control rod drives Have on the stroke casing 113 of mechanism and the outer wall of pressure hull 114 and be equipped with three seals weld seam 112 successively under, with pressure resistance 114 outer wall lower sealing bead 112 of shell is that built-up welding maintenance objects illustrate, the specific reality of seal-weld built-up welding maintenance unit Apply that steps are as follows：

Before step 1, built-up welding repair, find that the lower sealing bead 112 on pressure hull 114 is revealed by non-destructive testing, first The pretreatment work of early period, 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 nut bearing 84, axial nut bearing 99 etc.) it carries out school zero, reset, welding module 120 is adjusted to vertical State, so as not to when seal-weld built-up welding maintenance unit be installed, welding module 120 and environment interfere, according to the outer of pressure hull 114 Diameter manually adjusts the position of radial dovetail guide 115 and locks.

Step 3 lifts seal-weld built-up welding maintenance unit by lifting lug 2, and seal-weld built-up welding maintenance unit is made to be led upper To block 1, lower guide pad 64 guiding role under, from the top of control rod drive mechanism, the outer wall along stroke casing 113 and pressure resistance The outer wall slide downward of shell 114, and observed by welding video monitoring component 30, the height detected in conjunction with range sensor 70 Seal-weld built-up welding maintenance unit is installed to designated position by position.

Step 4, control clamping motor component 53 rotate, make two clamping stirrups 55 under the driving for clamping driving leading screw 62 to Interior clamping movement, the elastic compression plate 56 by being fixed on 55 inside of clamping stirrup are locked on the outer wall of pressure hull 114.

Step 5, control rotating mechanism 119 act, and at the positioning to seal-weld 112 of weld assembly 46, and adjust welding The posture of component 46 and wire feed position, striking, wire feed realize heap according to the movement of each motion of welding procedure demand control 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, it observes the situation of welding pool in real time by welding video monitoring component 30, is detected by temperature sensor 31 Bath temperature；After the completion of waiting for built-up welding operation, blow-out stops wire feed, each reset, and welding module 120 is adjusted to vertical State；It controls clamping motor component 53 to rotate, so that two clamping stirrups 55 is unclamped the outside of pressure hull 114, by seal-weld heap Weldering maintenance unit lifts out upwards, to complete entire built-up welding operation process.

In conclusion this application involves seal-weld built-up welding maintenance unit have the advantages that：

1, seal-weld built-up welding maintenance unit monnolithic case is cylindrical structure, and uses hollow type and fix to clamp, revolve Rotation mechanism and semi-surrounding type welding motion module and welding module, it is compact-sized reasonable, it can fully adapt to maintenance sites Narrow restricted clearance, the installation limitation of different direction when avoiding maintenance work.

2, clamp system can automatic centering clamp, and it is replaceable clamping and guiding 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, the relative position of wire feed nozzle assembly and weld assembly is adjusted in two axis welding wire adjustment mechanisms, by each The adjust automatically of axis, it is ensured that the spatial accessibility needed for different sealing weld seam built-up welding repair and welding process requirement；Weld mould Block is equipped with a wide range of manual adjustment means of two axis, and two axis 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.

4, a whole set of seal-weld built-up welding maintenance unit uses modularized design, can be replaced a little by adjusting each kinematic axis Parts disclosure satisfy that different heap-type, the welding process requirement of different 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 easy 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 repair, can effectively improve the operational efficiency of nuclear power station.

So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization.

The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as At all equivalent modifications or change, should by the present invention claim be covered.

Claims (25)

1. a kind of seal-weld built-up welding maintenance unit, it is characterised in that：Include with installation pedestal (117), the folder for accommodating inner cavity Tight mechanism (118), rotating mechanism (119) and welding module (120)；In the installation pedestal (117) have up and down, And the installation straight slot (41) for being penetrated for seal-weld carrier, the receiving inner cavity is connected with installation straight slot (41), described There is installation pedestal (117) rotating mechanism being located at receiving inner cavity lower end to fix disk (6)；The clamp system (118) is located at In the receiving inner cavity of installation pedestal (117) and have there are two symmetrically arranged clamping stirrup (55), two clamping stirrups (55) can It is 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) is mounted on rotating mechanism and fixes on the lower face of disk (6) and have and can be revolved along the circumferential direction of seal-weld carrier The fixed disk (52) of welding campaign turned；The welding module (120) is installed on the fixed disk (52) of welding movement and has 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 outer housing (4) and it is installed in the upper cover plate (3) of outer housing (4) upper end, it is solid that the rotating mechanism fixes disk (6) It is located at the lower end of outer housing (4), at least one lifting lug (2), the receiving inner cavity are installed on the upper surface of the upper cover plate (3) Disk (6) is fixed by upper cover plate (3), outer housing (4) and rotating mechanism to surround, the installation straight slot (41) is located at outer housing (4) Upper cover plate (3) and rotating mechanism fixation disk (6) are simultaneously run through in inside up and down.

3. seal-weld built-up welding maintenance unit according to claim 2, it is characterised in that：The installation pedestal (117) It is additionally provided with the upper guide pad (1) for being fixed on upper cover plate (3) in receiving inner cavity and is fixed on rotating mechanism and fixes under disk (6) Guide pad (64) offers upper pilot hole up and down in the upper guide pad (1), is offered in lower guide pad (64) up and down The lower pilot hole of perforation, the upper pilot hole, lower pilot hole and installation straight slot (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) packet Include two pieces be located at the arc mounting plate (54) of two clamping stirrup (55) peripheral sides, two be located at clamping stirrup (55) Clamping at both sides drives leading screw (62) and is fixed on the clamping motor component (53) of arc mounting plate (54), two pieces of arcs Mounting plate (54) is all fixed on rotating mechanism and fixes on the upper surface of disk (6), and two clamp driving leading screw (62) both ends and all pass through Bearing is rotatably supported in two pieces of arc mounting plates (54), be all fixed at the both sides of two clamping stirrups (55) respectively with Two clamp the matched clamping driving nut (59) of driving leading screw (62)；Two clamp in driving leading screw (62), a clamping It drives 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 It is clamped with another and drives leading screw (62) to be connected, drives another to clamp driving leading screw (62) synchronous rotation.

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) is used for and the peripheral surface of seal-weld carrier 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 mounting plates (54) it Between be installed at least one and be parallel to the guide rod (58) for clamping driving leading screw (62), be installed in each clamping stirrup (55) with Guide rod (58) matched guide sleeve (57).

8. seal-weld built-up welding maintenance unit according to claim 1, it is characterised in that：Rotating mechanism (119) packet It includes and is fixed on the biography down that rotating mechanism fixes the electric rotating machine component (76) of disk (6), drives rotation by electric rotating machine component (76) Moving gear (83), with internal gear face (691) internal tooth annular slide track (69), with internal tooth annular slide track (69) mutually fixed ring Shape guide rail slider disc (68), the ring-shaped guide rail for being fixed on rotating mechanism fixation disk (6) lower face fix disk (71) and multiple weeks To the V groove bearings (67) being distributed on ring-shaped guide rail fixation disk (71), the lower transmissioning gear (83) and internal tooth annular slide track (69) internal gear face (691) is meshed；The periphery of the internal tooth annular slide track (69) has V-type orbit portion, each V fluted shafts The periphery for holding (67) all has V-groove, the V-type of the V-type orbit portion of the internal tooth annular slide track (69) and multiple V groove bearings (67) Slot matches, and the fixed disk (52) of welding movement is mounted on the lower face 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：It further 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 moving portion, the axial motion mechanism with axial movement portion and the rotating mechanism with rotation section, institute It states radiai adjustment mechanism fixed block (8) is moved by welding and be mounted on the lower face of the fixed disk (52) of welding movement, described the One move radially portion can moving radially and mutually being fixed with radial movement mechanism along seal-weld carrier, described second radial moves 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 packet Include the radial direction for being fixed on the welding campaign connecting plate (9) of welding movement fixed block (8), being opened on welding movement connecting plate (9) Dovetail groove and the radial dovetail guide (115) being fixed in radial movement mechanism, the radial direction dovetail groove and radial dovetail are led Rail (115) matches and all parallel with the radial direction of seal-weld carrier, and the welding movement connecting plate (9) is in radial dovetail The lower end of slot 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 packet Include be fixed on first move radially portion radial motion pedestal, along the radial motion radially extended of seal-weld carrier drive silk Thick stick (91), the radial nut bearing (84) for being fixed with radial motion nut and the radial electricity on radial motion pedestal Thermomechanical components (86), radial motor component (86) the driving radial motion driving leading screw (91) rotate, the radial motion driving The both ends of leading screw (91) be all rotatably supported in radial motion pedestal by bearing and radial motion driving leading screw (91) with Radial motion nut matches, and the radial direction nut bearing (84) is by being axially moved connecting plate (14) and axial motion mechanism phase It connects, 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 nut bearing (84) and being parallel to radial motion driving leading screw (91) The both ends of radial alignment guide rail (90), the radial alignment guide rail (90) are fixed in radial motion pedestal, the radial guidance Sliding block (93) is matched 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 packet 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) is fixed with the axial nut bearing (99) for being axially moved nut (97) and mounted on the axis being axially moved on pedestal To electric machine assembly (95), axial direction electric machine component (95) the driving axial movement driving leading screw (102) rotates,

It is described be axially moved driving leading screw (102) both ends all by bearing be rotatably supported in be axially moved pedestal in and It is axially moved driving leading screw (102) and is matched with nut (97) is axially moved, the axial nut bearing (99) is transported by rotating Dynamic connecting plate (20) is connected with axial motion mechanism, 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 being parallel to axial movement driving leading screw (102) Axial the linear guide (101), it is described axial direction the linear guide (101) both ends be fixed on be axially moved pedestal in, the axial direction Guide rail slide block (100) is matched with axial the linear guide (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 housing (23) and by rotary electric machine component (104) driving rotation rotation mandrel (24), described turn Moving mandrel (24) is rotatably supported in by bearing in rolling bearing housing (23), and the rotation mandrel (24) is far from rotation electricity One end of thermomechanical components (104) is connected with welding module (120) by welding module support 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 support plate (25), welding wire rotation adjusts fixed seat (26), welding wire rotates adjusting block (27) and weldering Silk adjustment mechanism connecting plate (32), the weld assembly (46) are mounted in welding module support plate (25), the wire feeding mouth group Part (45) is mounted on welding wire adjustment mechanism connecting plate (32), and the welding wire rotation adjusts fixed seat (26) and is mounted on weld assembly (46) on, welding wire rotation adjusting block (27) and welding wire rotation adjust fixed seat (26) be rotatably assorted, between the two can be around The axis of weld assembly (46) relatively rotates, and the welding wire adjustment mechanism connecting plate (32) is to move with welding wire rotation adjusting block (27) Dynamic cooperation, between the two can be along the axially opposing movement of weld assembly (46).

17. seal-weld built-up welding maintenance unit according to claim 16, it is characterised in that：The welding wire rotation adjusts solid The both ends of reservation (26) are equipped with the lug portions for being located at welding wire rotation adjusting block (27) both sides, and arc tune is designed on each lug portions The both ends of knothole (271) and turn hole, the welding wire rotation adjusting block (27) are respectively equipped with shaft, and welding wire rotates adjusting block (27) The turn hole that the shaft at both ends rotates adjusting fixed seat (26) both ends with welding wire respectively matches, constitutes rotational motion, described prominent Ear is detachably connected with welding wire rotation adjusting block (27) by the screw being threaded through 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 adjusting block (27) welding wire parallel with the axial direction of weld assembly (46) is offered on adjusts dovetail groove, the welding wire adjustment mechanism connecting plate (32) it is equipped with the welding wire parallel with the axial direction of weld assembly (46) and adjusts dovetail guide (28), the welding wire adjusts dovetail guide (28) dovetail groove is adjusted with welding wire to match.

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 axis welding wire adjustment mechanisms (116) are also equipped on fishplate bar (32), the output end of two axis welding wire adjustment mechanisms (116) is connected with weldering Silk adjustment perfoming block (108), the welding wire adjust perfoming block (108) can along the axial movement for being parallel to weld assembly (46) and Along the axial movement perpendicular to weld assembly (46), welding wire adjustment link block is installed on the welding wire adjustment perfoming block (108) (44), ignition tip mounting blocks (43) are installed on welding wire adjustment link 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 axis welding wire adjusts machine Structure (116) includes the welding wires adjustment mounting 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 vertically to gear shaft (109), with parallel to driving, leading screw (110) is matched parallel to lead 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 install Parallel to electric machine assembly (39) and vertically to electric machine assembly (34) on plate (33), two pieces of welding wire adjustment mounting plates (33) are all fixed It is described parallel to the both ends of driving leading screw (110) and vertically to gear shaft (109) in welding wire adjustment mechanism connecting plate (32) Both ends two pieces of welding wires be all rotatably supported in by copper sheathing adjust in mounting plates (33), it is described parallel to driving leading screw (110) it is rotated from parallel driven to electric machine assembly (39), it is described vertically to gear shaft (109) from vertically to electric machine assembly (34) driving rotates, and sliding eye is offered in parallel (111) to nut guide pad, described vertically to driving circular rack (35) It is movably threaded through and parallel is mutually nibbled to gear shaft (109) into the sliding eye of nut guide pad (111) and with vertical It closes, the welding wire adjustment perfoming block (108) is fixed on vertically to one end of driving circular rack (35).

22. seal-weld built-up welding maintenance unit according to claim 21, it is characterised in that：It is described vertically to driving knuckle-tooth The other end of item (35) is fixed with welding wire adjustment limited block (36), the welding wire adjustment perfoming block (108) and welding wire adjustment limit 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) being mounted on fixed disk (52) lower face of welding movement and wire-feed motor (51), the wire feed nozzle assembly (45) it is connected with wire-feed motor (51) by wire-feeding pipe (37), 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 fixed disk of welding movement (52) range sensor (70) is installed on lower face.

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