CN105583563A - Special steam turbine diaphragm blade grid assembling and welding tool - Google Patents
Special steam turbine diaphragm blade grid assembling and welding tool Download PDFInfo
- Publication number
- CN105583563A CN105583563A CN201610126012.8A CN201610126012A CN105583563A CN 105583563 A CN105583563 A CN 105583563A CN 201610126012 A CN201610126012 A CN 201610126012A CN 105583563 A CN105583563 A CN 105583563A
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- steam turbine
- claw
- chassis
- screw
- slide block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/006—Safety devices
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention discloses a special steam turbine diaphragm blade grid assembling and welding tool, belongs to an assembling and welding tool for diaphragms or diaphragm blade grids in the technical field of steam turbines, and aims to provide a special steam turbine diaphragm blade grid assembling and welding tool which is suitable for clamping shroud rings with different diameters. The technical scheme is as follows: the special steam turbine diaphragm blade grid assembling and welding tool comprises a chassis, wherein a bevel gear wheel is arranged above the chassis; the bevel gear wheel can freely rotate around the axis of the bevel gear wheel; lead screws are arranged above the chassis; a bevel pinion is connected with one end part of each lead screw; the bevel pinions are engaged with the bevel gear wheel; the lead screws are in threaded connection with second sliding blocks; the second sliding blocks can axially move on the lead screws; and an inner clamping jaw and an outer clamping jaw are arranged on each second sliding block and are arranged from inside to outside in sequence in the radial direction of the chassis. The special steam turbine diaphragm blade grid assembling and welding tool is suitable for being used in a diaphragm or diaphragm blade grid assembling and welding process.
Description
Technical field
The invention belongs to steam turbine technology field, relate to a kind of dividing plate leaf grating, relate in particular to a kind of assembling of dividing plate leaf gratingSpecial tooling during with welding.
Background technology
Steam turbine, as topmost heating power prime mover, occupies extremely heavy in the fields such as the energy, electric power and power engineeringThe status of wanting. Along with greatly developing of large capacity, high parameter thermal power steam turbine and nuclear steam turbine etc., turbine for wet steam is askedIt is day by day serious that topic becomes.
The stator blade that fixes for partition board of steam turbine (nozzle) and the gas leakage of prevention inter-stage, it is by steam turbine interior separation Cheng RuoA dry pressure stage, makes steam change potential energy into kinetic energy by static cascade, and makes steam flow direction in accordance with regulations flow into movable vane. ExistingPartition board of steam turbine mainly comprise in dividing plate ring, dividing plate outer shroud and be arranged at the leaf grating assembly between ring, dividing plate outer shroud in dividing plate,In dividing plate, ring plays with dividing plate outer shroud the effect of supporting leaf grating assembly. This leaf grating assembly comprises interior shroud, outer shroud and guide vane,Guide vane is installed between interior shroud and outer shroud by the type hole on interior shroud, outer shroud, and adopts the mode of welding by itFixing. The utility model patent that is 201220009921.0 as application number discloses a kind of split type dividing plate, this split type everyPlate comprises static cascade, and static cascade medial surface, lateral surface connect respectively interior shroud, outer shroud, and interior shroud connects internal partition body, peripheryBand connects external partition body. In the time of this split type dividing plate of assembly welding, first static cascade is placed on to interior shroud and outer shroud formBetween hole, use electric welding firm welding, then respectively with internal partition body, the junction levelling of external partition body, centering, be welded on oneRise, can complete finally by heat treatment and machining.
Prior art all needs to use that frock clamp is placed in the time of assembly welding partition board of steam turbine, ring in stationary barrier,Dividing plate outer shroud and leaf grating assembly. Existing partition board of steam turbine frock clamp generally comprises clamp body, and it is right on clamp body, to offerThe groove of answering, and in dividing plate, the bottom of shroud, the outer shroud of dividing plate is all connected in groove corresponding on clamp body, realizes in dividing plateThe clamping of shroud, the outer shroud of dividing plate, location and fixing. Application number is that 200710021088.5 application for a patent for invention disclosesThe special fixture using in partition board of steam turbine shrouding strip type hole forming method and the method, this special fixture comprises pressurePlate, end face have the clamp body of coaxial positioning groove, through pressing plate be connected to screw rod locating slot and corresponding nut, withThe support that clamp body is connected. When use, inner and outer ring one end insertion clamp body end face that the peer after volume is justified and pitch are identicalIn locating slot, make a pair of wire hole on inner and outer ring in the radial direction same, find center of circle radiation and wire hole accurately, andPressing plate is contacted with the inner and outer ring other end, by nut, screw rod will and inner and outer ring be pressed between pressing plate and clamp body.
Summary of the invention
Because size, the model of steam turbine in prior art are varied, make the size, shape of steam turbine median septum alsoDifferent. The diameter of the diameter of different steam turbine median septum inner and outer rings and the inside and outside shroud of dividing plate varies; Different steamersThe thickness of the thickness of machine median septum inner and outer rings and the inside and outside shroud of dividing plate also have thick have thin; In different steam turbine median septums,The inside and outside shroud of outer shroud and dividing plate has vertically disposed, and dividing plate inner and outer rings and dividing plate inside and outside shroud also has and is obliquely installed;The angle of inclination (being tapering) of different steam turbine median septum inner and outer rings and the inside and outside shroud of dividing plate also changes to some extent; Different steamersThe difference of height of the inside and outside shroud of machine median septum inner and outer rings and dividing plate also changes to some extent, thereby the existing dividing plate leaf grating that is applied toFrock clamp cannot meet the clamping of the dividing plate of the steam turbine to different size, model simultaneously, between various frock clamps notCan be general, thereby cause the design of the frock clamp of partition board of steam turbine, manufacture workload to increase, and cause a large amount of waste of materialAnd the production cost of increase frock clamp.
Goal of the invention of the present invention is: the problem existing for prior art, provides a kind of applicable to clamping differenceThe partition board of steam turbine leaf grating welding of the shroud of diameter and assembling special tooling.
To achieve these goals, the technical solution used in the present invention is:
A kind of partition board of steam turbine leaf grating assembling and welding special tooling, comprise chassis, and the top of the upper surface on described chassis is provided withCone gear, described cone gear can freely rotate around the axis of cone gear; The top of the upper surface on described chassisBe provided with some screw mandrels, some screw mandrels are around the circumferential distribution of cone gear, every rhizoid bar be close to cone gear one sideEnd be connected with cone pinion, described cone pinion engages with cone gear; On described screw mandrel, be threadedTwo slide blocks, described the second slide block can be on screw mandrel moving axially along screw mandrel; On described the second slide block, be provided with interior claw and outerClaw, described interior claw, outer claw are radially set gradually by interior outward along chassis.
Wherein, the end face of described interior claw offers inner card cage, and described interior claw is provided with and can screws in screwing of inner card cageInner bolt.
Wherein, the end face of described outer claw offers exterior bayonet slot, and described outer claw is provided with and can screws in screwing of exterior bayonet slotMale screw thread.
Wherein, in the exterior bayonet slot of described outer claw or in the inner card cage of interior claw, the end face of described gradient calibrated bolck isInclined-plane.
Wherein, the bottom surface of described outer claw offers container cavity, is provided with adjusting straight pin in described container cavity, described tuneThe lower end of pitch circle pin is threaded with the second slide block, and the exterior bayonet slot at outer claw top is stretched in the upper end of described adjusting straight pinIn.
Wherein, on described the second slide block along chassis radially offer chute, on described chute, be provided with the first slide block, instituteState the first slide block can be in chute radially sliding along chassis; On the end face away from cone gear one side of described the second slide blockBe connected with gripper shoe, in described gripper shoe, be connected with fine setting leading screw, described fine setting leading screw can be in gripper shoe around fine setting leading screwAxis freely rotates, and the free end of described fine setting leading screw is threaded with the first slide block.
Wherein, on described chassis, be fixedly connected with cup, on described cup, offer through hole, in being connected with on described cupHeart centering flat board, the threaded rod of described center centering flat board is sheathed in the through hole of cup, and described center centering flat board can be at lidThe axis of Tong Shangrao center centering flat board freely rotates, and spill spin block has been threaded on the threaded rod of described center centering flat board.
Wherein, the side near cone gear on described screw mandrel is arranged with interior leading screw protective cover, close on described screw mandrelOne side of cone gear is arranged with outer leading screw protective cover.
Wherein, described screw mandrel is connected by shaft coupling with cone pinion, and the proximal part of described screw mandrel is set in shaft couplingIn, the distal end of described cone pinion is set in shaft coupling, and described screw mandrel and shaft coupling, shaft coupling and cone pinionAll connect by taper bolt.
Wherein, the side end face on described chassis comprises the face of cylinder and plane, the face of cylinder of the side end face on described chassis and planeOn be provided with the lifting bolt for lifting.
In sum, owing to having adopted technique scheme, the invention has the beneficial effects as follows:
1, in the present invention, on this chassis, cone gear is set, some screw mandrels are set on chassis, the little tooth of circular cone being connected with screw mandrelWheel is meshed with cone gear, thereby rotation is when cone gear, can drive by cone pinion the rotation of screw mandrel; The endOn dish, be also provided with the second slide block, be provided with interior claw and outer claw on the second slide block, claw is in clamping shroud or dividing plateOuter shroud, the second slide block is connected with wire rod thread, thereby in the time of rotary screw rod, screw mandrel by drive the second slide block along screw mandrel axiallyMobile, screw mandrel be axially chassis radially, thereby the radial spacing of capable of regulating the second slide block on chassis, thus applicableThere is the dividing plate inner and outer rings of different-diameter and the steamer device dividing plate of inside and outside shroud, the use that improves this special tooling in clampingScope; Due to this special tooling can repeat to be applicable to the dividing plate inner and outer rings of different-diameter and the steam turbine of inside and outside shroud everyPlate, thereby can significantly reduce the design of frock clamp, the workload of manufacture, reduce the frock folder because manufacturing various models, sizeThe production cost that tool brings, effectively avoids the waste of various materials, resource.
2, in the present invention, offer inner card cage at the end face of interior claw, on interior claw, be provided with and can screw in revolving of inner card cageTight inner bolt; Can control owing to screwing inner bolt by rotation the distance screwing between inner bolt end and inner card cage end face, fromAnd be repeatedly applicable to clamping and have partition board of steam turbine or the dividing plate leaf grating of different-diameter, improve the scope of application of this special tooling,Significantly reduce the design of frock clamp, the workload of manufacture, reduce that the frock clamp of various models, size brings because manufacturingProduction cost, effectively avoids the waste of various materials, resource.
3, in the present invention, the end face of claw offers exterior bayonet slot outside, and outer claw is provided with and can screws in screwing of exterior bayonet slotMale screw thread; Can control owing to screwing male screw thread by rotation the distance screwing between male screw thread end and exterior bayonet slot end face, therebyRepeatedly be applicable to partition board of steam turbine or dividing plate leaf grating that clamping has different-diameter, improve the scope of application of this special tooling, largeWidth reduces the design of frock clamp, the workload of manufacture, reduces the life bringing because manufacturing the frock clamp of various models, sizeProduce cost, effectively avoid the waste of various materials, resource.
4, in the present invention, in the exterior bayonet slot of outer claw or in the inner card cage of interior claw, the end face of gradient calibrated bolck is obliqueFace; By placing and there is the gradient calibrated bolck of different angle in draw-in groove, thus applicable to clamping have different taperings interior,The partition board of steam turbine of outer shroud or dividing plate inner and outer rings, improves the scope of application of this special tooling, significantly reduces establishing of frock clampMeter, the workload of manufacturing, reduce the production cost bringing because manufacturing the frock clamp of various models, size, effectively avoids eachPlant the waste of material, resource.
5, in the present invention, the bottom surface of outer claw offers container cavity, is provided with adjusting straight pin in container cavity, regulates cylinderThe lower end of pin is threaded with the second slide block, regulates the upper end of straight pin to stretch in the exterior bayonet slot at outer claw top; If desired adjustWhile saving the height of dividing plate outer shroud or outer shroud, now rotate and regulate straight pin, make to regulate the short transverse of straight pin along outer clawMobile, thus control and regulation straight pin stretches into the thickness in exterior bayonet slot, controls the height of dividing plate outer shroud or outer shroud, improves that this is specialBy the scope of application of frock, significantly reduce the design of frock clamp, the workload of manufacture, reduce because manufacturing various models, sizeThe production cost that brings of frock clamp, effectively avoid the waste of various materials, resource.
6,, in the present invention, the free end of this fine setting leading screw is threaded with the first slide block, when needs adjust in claw and outsideWhen spacing between claw, rotate fine setting leading screw, the fine setting leading screw of rotation is by the wild card driving on the first slide block and the first slide blockPawl slides along radially (being the length direction of chute) on chassis, thereby changes the spacing between interior claw and outer claw, makes it suitableFor the blessing of the partition board of steam turbine of the different inside and outside shroud of spacing or dividing plate inner and outer rings, thereby improve the suitable of this special toolingBy scope, significantly reduce the design of frock clamp, the workload of manufacture, reduce because manufacturing the frock clamp of various models, sizeThe production cost bringing, effectively avoids the waste of various materials, resource.
7, in the present invention, in the time that External Force Acting makes spill spin block rotate on this spill spin block, the spill spin block Jiang Shi center of rotationThe external thread rod of centering flat board moves radially along external thread rod, thus the height of the center of adjustment centering flat board, and center centering is flatPlate is adjusted to after suitable height, and whether the center of circle of measuring inside and outside shroud or dividing plate inner and outer rings by aid is positioned at centerOn the axis of centering flat board, thereby finally complete inside and outside shroud or dividing plate by the movement of controlling the first slide block, the second slide blockThe center of inner and outer rings is adjusted, and makes in interior shroud and outer shroud, dividing plate ring concentric with dividing plate outer shroud, improves that this is specialThe scope of application of frock, significantly reduce the design of frock clamp, the workload of manufacture, reduces because manufacturing various models, sizeThe production cost that frock clamp brings, effectively avoids the waste of various materials, resource.
8,, in the present invention, be arranged with respectively interior leading screw protective cover, outer leading screw protective cover at the two ends of screw mandrel, in arrangingLeading screw protective cover, outer leading screw protective cover can effectively avoid screw mandrel directly to contact with user, thereby it is right effectively to avoid screw mandrel to rotateThe personal injury that user causes.
Brief description of the drawings
Fig. 1 is the front view that partly cuts open of the present invention;
Fig. 2 is top view of the present invention;
Fig. 3 is the partial enlarged drawing of Fig. 1 at I place;
Fig. 4 is the scheme of installation of interior claw, outer claw;
Fig. 5 is the connection diagram of leading screw and cone pinion;
Fig. 6 is the partial schematic diagram of Fig. 1;
Fig. 7 is the complete section front view on chassis in the present invention;
Fig. 8 is the top view on chassis in the present invention;
Fig. 9 be Fig. 1 at the schematic diagram of loading onto after accommodating workpiece, top broken line construction is depicted as workpiece;
Figure 10 be Fig. 2 at the schematic diagram of loading onto after accommodating workpiece, middle part circular arc broken line construction is depicted as workpiece;
Wherein, Reference numeral is: 1-chassis, 2-gripper shoe, 3-fine setting leading screw, 4-outer claw, 5-adjusting cushion block, 6-tuneJoint screw, the 7-the first slide block, 8-interior claw, the 9-the second slide block, 10-screw, the 11-the first screw, 12-screw mandrel, 13-Bearing (ball) cover, the 14-the second screw, the 15-the three screw, 16-packing ring, 17-cylindrical central sleeve, 18-bearing insert, 19-circleCone pinion, the 20-the first taper roll bearing, 21-cone gear, 22-lower cover, the 23-the first lining, 24-centerAxle, 25-cover plate, 26-studs, 27-nut, 28-interior screw mandrel protective cover, 29-out screw rod protective cover, 30-the fourScrew, the 31-the five screw, 34-cup, 35-spill spin block, 36-center centering flat board, 37-upper cover plate, the 38-the six spiral shellNail, the 39-the second lining, the 40-the second taper roll bearing, stop washer, 42-round nut, 43-shaft coupling for 41-round nutDevice, 44-taper bolt, 45-calibrated bolck, 46-gradient calibrated bolck, 47-adjusting straight pin, 48-spanner, 49-lifting bolt,81-inner card cage, 82-screw inner bolt, 91-chute, 401-exterior bayonet slot, 402-screw male screw thread.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, rightThe present invention is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the present invention, noBe used for limiting the present invention.
A kind of partition board of steam turbine leaf grating assembling and welding special tooling, this special tooling is mainly used in assembling partition board of steam turbineOr in dividing plate, leaf grating fashionable dress is joined the special tooling using with welding, and this special tooling can repeat to be applicable to inside and outside shroudThe different partition board of steam turbine of diameter, thickness, tapering and difference of height or dividing plate in assembling and the welding of leaf grating. This special toolingComprise chassis 1, this chassis 1 is " D " type structure, and the cross section on chassis 1 is made up of arc section and straightway, the center of circle of this arc sectionAngle is greater than 180 °, and the length of straightway is less than the diameter of arc section. Above the upper surface on chassis 1, be provided with cone gear21, this cone gear 21 is arranged at the home position on chassis 1, and the upper surface on the axis of this cone gear 21 and chassis 1Vertically. The mounting means of this cone gear 21 is more, and the application provides preferably connected mode of one: at the circle on chassis 1A through hole is offered in heart position, sheathed central shaft 24 in this through hole, and this central shaft 24 is connected in chassis by lower cover 2522, screwOn 1, these central shaft 24 tops are provided with cover plate 25, and cover plate 25 is fastened on central shaft 24 and is pushed up by studs 26, nut 27Portion, cone gear 21 is installed on central shaft 24 by the first lining 23, the first taper roll bearing 20, and cone gear21 can freely rotate on central shaft 24. This cone gear 21 can be above the upper surface on chassis 1 around cone gear 21Axis freely rotates. Realizing the method that cone gear 21 rotates has a lot, can on chassis 1, arrange one and drive electricityMachine, this cone gear 21 is directly set on the output shaft of drive motors, and the output shaft rotation of drive motors can be realized circleThe rotation of cone gear wheel 21; A rotating shaft also can be set above chassis 1, and this rotating shaft end is provided with gear, and revolvesGear in rotating shaft is meshed with cone gear 21, and the rotating shaft of rotation also will drive cone gear 21 to rotate. The applicationIn, for the ease of controlling structure, the size of special tooling, rotary fixture is taken up room less, thereby adopt above-mentioned the secondType of drive is provided with spanner 48 above chassis 1, and the output the tip of the axis of this spanner 48 is connected with gear, on this spanner 48Gear be meshed with cone gear 21. In the time that needs rotate this cone gear 21, rotate this spanner 48 and can realize. ?The top of the upper surface on chassis 1 is also provided with screw mandrel, and this screw mandrel is provided with some, and some screw mandrels are all around cone gear21 circumferential distribution, even shredded dried bean curd bar is circular arc distribution above chassis 1, and the center of circle of the distribution curve of screw mandrel is positioned at circular coneOn the axis of gear wheel 21, the plane at screw mandrel place is vertical with the axis of cone gear 21. Every rhizoid bar includes end of engagementAnd free end, the end of engagement of screw mandrel is the one end that is close to cone gear 21 on screw mandrel, the free end of screw mandrel is far away on screw mandrelFrom one end of cone gear 21; The end of the end of engagement of every rhizoid bar is all connected with cone pinion 19, the little tooth of multiple circular conesWheel 19 tops that are circumferentially distributed in the each tooth of cone gear 21 position along cone gear 21, and be connected on every rhizoid barCone pinion 19 all engages with cone gear 21 above each tooth position of cone gear 21. When cone gear 21 existsUnder External Force Acting, produce in the time that the axis of cone gear 21 rotates, the cone gear 21 of rotation will drive engage with it eachIndividual cone pinion 19 rotates, and the cone pinion 19 of rotation will drive corresponding connected screw mandrel to rotate. Every rhizoid barOn be all arranged with the second slide block 9, on each the second slide block 9 along chassis 1 be radially provided with screwed hole, one end of screw mandrel passesThe second slide block 9, is set in outside screw mandrel the second slide block 9, and screw mandrel and the second slide block 9 are threaded connection. When screw mandrel is subject to external forceWhile rotating, the screw mandrel of rotation (is chassis along the axial of screw mandrel by driving the second slide block 9 being threaded with it on screw mandrel1 radially) mobile. Being connected between the second slide block 9 and screw mandrel, except screw mandrel and the second slide block 9 be directly threaded connection with, also can there is other implementation outward, on the second slide block 9, radially offer through hole, sheathed silk in this through hole along chassis 1Female 10, this screw 10 by the first screw 11 and the second slide block 9 connect as one structure and together with interlock, this screw 10 is also the end of alongDish 1 radially offer screwed hole, this screw 10 is directly set on screw mandrel, screw 10, screw mandrel are threaded connection. Screw mandrel turnsWhen moving, will drive the second slide block 9 to move by screw 10. On every the second slide block 9, be provided with interior claw 8 and outer claw 4,Interior claw 8, outer claw 4 be being radially successively set on the second slide block 9 by interior along chassis 1 outward all.
On this chassis 1, cone gear 21 is set, some screw mandrels, the cone pinion being connected with screw mandrel are set on chassis 119 are meshed with cone gear 21, thereby rotate when cone gear 21, can drive screw mandrel by cone pinion 19Rotate; On chassis 1, be also provided with on the second slide block 9, the second slide blocks 9 and be provided with interior claw 8 and outer claw 4, claw is for clampingShroud or dividing plate inner and outer ring, the second slide block 9 is connected with wire rod thread, thereby in the time of rotary screw rod, screw mandrel will drive the second slide block 9Along the moving axially of screw mandrel, screw mandrel be axially chassis 1 radially, thereby capable of regulating the second slide block 9 is in the One On The Chassis footpathTo spacing, thereby there is the dividing plate inner and outer rings of different-diameter and the steamer device dividing plate of inside and outside shroud applicable to clamping, carryThe scope of application of high this special tooling; Due to this special tooling can repeat to be applicable to different-diameter dividing plate inner and outer rings and interior,The steamer device dividing plate of outer shroud, thereby can significantly reduce the design of frock clamp, the workload of manufacture, reduce because manufacturing various typesNumber, the production cost that brings of the frock clamp of size, effectively avoid the waste of various materials, resource.
In the practical set and welding clamping process of dividing plate or leaf grating, except the radial position that need to control claw makes itApplicable to having outside the blessing of the dividing plate inner and outer rings of different-diameter and the steamer device dividing plate of inside and outside shroud, also need to be suitable forIn the blessing with the inside and outside shroud of different-thickness or the partition board of steam turbine of dividing plate inner and outer rings. So, at the end face of interior claw 8On be provided with the inner card cage 81 with certain depth, be also connected with and screw inner bolt 82 on the top of interior claw 8, this screws interior spiral shellNail 82 is threaded with interior claw 8, and screws end that inner bolt 82 can screw inner bolt 82 and block in screwing in by rotating thisIn groove 81. When clamping, first outwards rotate and screw inner bolt 82, then by the interior shroud bottom of ring or leaf grating in the dividing plate of dividing plateSnap in inner card cage 81, finally rotate again screw inner bolt 82 make to screw inner bolt 82 act on tightly in dividing plate ring or in encloseBring and ring or interior shroud in dividing plate are fastened in the inner card cage 81 of interior claw 8. Can owing to screwing inner bolt 82 by rotationControl screws the distance between inner bolt 82 ends and inner card cage 81 end faces, has different-diameter thereby be repeatedly applicable to clampingPartition board of steam turbine or dividing plate leaf grating. Interior claw 8 and the second slide block 9 are fastenedly connected by the 5th screw 31. In addition, except in controllingClaw 8 makes it applicable to having outside the blessing of the dividing plate inner and outer rings of different-diameter and the steamer device dividing plate of inside and outside shroud,Also can design from the angle of outer claw 4. For this reason, on the end face of claw 4, be provided with the exterior bayonet slot with certain depth outside401, the top of claw 4 is also connected with and screws male screw thread 402 outside, and this screws male screw thread 402 and is threaded with outer claw 4, andBy rotate this screw male screw thread 402 can will screw the end of male screw thread 402 screw in exterior bayonet slot 401. When clamping, first outwards turnThe moving male screw thread 402 that screws, then snaps in the outer shroud bottom of the dividing plate outer shroud of dividing plate or leaf grating in exterior bayonet slot 401, lastRotate again and screw male screw thread 402 and make to screw male screw thread 402 and act on tightly on dividing plate outer shroud or outer shroud and by dividing plate outer shroudOr outer shroud is fastened in the exterior bayonet slot 401 of outer claw 4. Can control and screw male screw thread owing to screwing male screw thread 402 by rotationDistance between 402 ends and exterior bayonet slot 401 end faces, thus be repeatedly applicable to clamping have different-diameter partition board of steam turbine orDividing plate leaf grating.
In the practical set and welding clamping process of dividing plate or leaf grating, except the radial position that need to control claw makes itApplicable to having outside the blessing of the dividing plate inner and outer rings of different-diameter and the steamer device dividing plate of inside and outside shroud, control inner card cageThe male screw thread 402 that screws screwing on the degree of depth, the exterior bayonet slot 401 that inner bolt 82 screws in inner card cage 81 on 81 screws in exterior bayonet slot 401The degree of depth make it applicable to having outside the blessing of the dividing plate inner and outer rings of different-thickness and the steamer device dividing plate of inside and outside shroud,Also need to be applicable to have the blessing of the inside and outside shroud of different taperings or the partition board of steam turbine of dividing plate inner and outer rings. For this reason, outsideIn the exterior bayonet slot 401 of claw 4, be also provided with gradient calibrated bolck 46, the end face of this gradient calibrated bolck 46 is inclined-plane; Can also be at thisOn basis, at the interior calibrated bolck 45 that arranges of inner card cage 81 of interior claw 8, this calibrated bolck 45 is cuboid or cube structure, standardThe end face of piece 45 is horizontal plane. Certainly, also can be at the interior gradient calibrated bolck 46 that arranges of the inner card cage of interior claw 8 81, can also beThis basis is upper, the interior calibrated bolck 45 that arranges of the exterior bayonet slot 401 of claw 4 outside, and the end face of calibrated bolck 45 is horizontal plane. By at draw-in grooveInside arrange after gradient calibrated bolck 46, there is the inside and outside shroud of certain taper or dividing plate inner and outer rings and can directly be positioned in draw-in groove alsoContact with the gradient calibrated bolck 46 of draw-in groove bottom, be convenient to follow-up welding; And by placing and there is different angle in draw-in grooveGradient calibrated bolck 46, thus applicable to clamping have the inside and outside shroud of different taperings or the steam turbine of dividing plate inner and outer rings everyPlate.
In the practical set and welding clamping process of dividing plate or leaf grating, except the radial position that need to control claw makes itApplicable to having outside the blessing of the dividing plate inner and outer rings of different-diameter and the steamer device dividing plate of inside and outside shroud, control inner card cageThe male screw thread 402 that screws screwing on the degree of depth, the exterior bayonet slot 401 that inner bolt 82 screws in inner card cage 81 on 81 screws in exterior bayonet slot 401The degree of depth make it applicable to the blessing with the dividing plate inner and outer rings of different-thickness and the steamer device dividing plate of inside and outside shroud, controlSystem put into the gradient calibrated bolck 46 with different angle make its applicable to have the inside and outside shroud of different taperings or dividing plate,Outside the partition board of steam turbine of outer shroud, also need to be applicable to have the inside and outside shroud of different differences of height or the steam turbine of dividing plate inner and outer ringsThe blessing of dividing plate. For this reason, on the bottom surface of claw 4, offer container cavity outside, in this container cavity, be provided with and regulate straight pin 47, shouldRegulate the lower end of straight pin 47 to be threaded with the second slide block 9, the upper end of this adjusting straight pin 47 stretch into outer claw 4 tops outsideIn draw-in groove 401. When dividing plate outer shroud or outside shroud snap in exterior bayonet slot 401 interior after, if desired regulate the height of dividing plate outer shroud or outer shroudWhile spending, now rotate and regulate straight pin 47, make to regulate straight pin 47 to move along the short transverse of outer claw 4, thus control and regulationStraight pin 47 stretches into the thickness in exterior bayonet slot 401, finally controls the height of dividing plate outer shroud or outer shroud. In addition, regulate straight pinOn 47, be provided with adjustment screw 6, this adjustment screw 6 is provided with two, and two adjustment screw 6 keep at a certain distance away one on the otherArrange; In container cavity, regulate straight pin 47 and hold between strong inwall and be also provided with and regulate cushion block 5, these adjusting cushion block 5 clampingsBetween two adjustment screw 6.
In the practical set of dividing plate or leaf grating and welding clamping process, except needs are applicable to have different-diameter, noThe blessing of the inside and outside shroud of stack pile, different tapering and/or different differences of height or the partition board of steam turbine of dividing plate inner and outer rings, also needsBe applicable to the blessing of the partition board of steam turbine of inside and outside shroud that spacing is different or dividing plate inner and outer rings. For this reason, at this second slide block 9On offer chute 91, this chute 91 is along the radially setting on chassis 1. On this chute 91, be provided with the first slide block 7, this first cunningPiece 7 can slide at chute 91 interior radially (being the length direction of chute 91) along chassis 1. If be provided with adjusting cylinder in this schemePin 47, this adjusting straight pin 47 is directly threaded with the first slide block 7, and with the first slide block 7 interlocks, and adjust without makingPitch circle pin 47 be threaded with the second slide block 9 and together with interlock. At the end away from cone gear 21 1 sides of the second slide block 9On face, be connected with gripper shoe 2, in this gripper shoe 2, be connected with fine setting screw mandrel 3, and this fine setting screw mandrel can be around fine setting in gripper shoe 2The axis of screw mandrel 3 freely rotates. The free end of this fine setting screw mandrel 3 is threaded with the first slide block 7, claw 8 in needs are adjustedAnd when spacing between outer claw 4, rotate fine setting screw mandrel 3, the fine setting screw mandrel 3 of rotation will drive the first slide block 7 and the first slide block 7On outer claw 4 slide along radially (being the length direction of chute 91) on chassis 1, thereby in changing between claw 8 and outer claw 4Spacing, make it be applicable to the blessing of the partition board of steam turbine of inside and outside shroud that spacing is different or dividing plate inner and outer rings.
In the practical set of dividing plate or leaf grating and welding clamping process, except needs meet in inside and outside shroud or dividing plate,Outside the adjustment of the aspects such as the diameter of outer shroud, thickness, tapering, difference of height, spacing, also need internal, outer shroud or dividing plate inner and outer ringsCenter is adjusted. For this reason, be fixedly connected with cup 34 on chassis 1, the center of this cup 34 is along cup 34Axis offers through hole, is connected with center centering flat board 36 on this cup 34, and this center centering flat board 36 comprises flat board and along flatThe external thread rod radially arranging of plate, this external thread rod is connected with dull and stereotyped, and the external thread rod of center centering flat board 36 is sheathed on lidIn the through hole of cylinder 34, center centering flat board 36 can freely be rotated at the axis of cup 34Shang Rao center centering flat board 36. In thisOn heart centering flat board 36, be fixedly connected with spill spin block 35, the external thread rod screw thread of this spill spin block 35Yu center centering flat board 36 connectsConnect, the spill spin block 35Yu center centering flat board 36 after being threaded is positioned on cup 34 together, the bottom surface of spill spin block 35 and lidThe end face contact of cylinder 34, the external thread rod of center centering flat board 36 is set in the through hole of cup 34. When External Force Acting revolves in thisWhile making spill spin block 35 rotate on switch block 35, the external thread rod of the spill spin block 35Jiang Shi center centering flat board 36 of rotation is along external thread rodMove radially, thereby adjust the height of center centering flat board 36, center centering flat board 36 is adjusted to after suitable height, byWhether the center of circle that aid is measured inside and outside shroud or dividing plate inner and outer rings is positioned on the axis of center centering flat board 36, thereby logicalCrossing the center that the movement of controlling the first slide block 7, the second slide block 9 finally completes inside and outside shroud or dividing plate inner and outer rings adjustsWhole, make to encircle in interior shroud and outer shroud, dividing plate concentric with dividing plate outer shroud. It is more that cup 34 is connected in the One On The Chassis mode, this ShenPlease provide a kind of connected mode preferably: on chassis 1, by the second screw 14, cylindrical central sleeve 17 is installed, central shaft 24, circleCone gear wheel 21 is all positioned at cylindrical central sleeve 17, by the 6th screw 38, upper cover plate 37 is installed, cup 34 on cylindrical central sleeve 17Directly on connection and upper cover plate 37. Position at the every rhizoid bar of circumferential correspondence of cylindrical central sleeve 17 offers through hole, cylindrical central sleeveIn each through hole of 17, be provided with bearing insert 18, between the inner face of bearing insert 18 and cylindrical central sleeve 17 external cylindrical surfaces, arrangeHave packing ring 16, and bearing insert 18 is fastened on cylindrical central sleeve 17 by the 3rd screw 15. The axle of cone pinion 19 is by theTwo linings 39, the second taper roll bearing 40 are installed in bearing insert 18. Bearing insert 18 is outside equipped with bearing (ball) cover 13, axleSocket end lid 13 passes through the 3rd screw 15 ground rolls on cylindrical central sleeve 17. In addition, at bearing (ball) cover 13 and the second taper roll bearingOn the axle of the cone pinion 19 between 40, be equipped with round nut 42, between round nut 42 and the second taper roll bearing 40, establishPut stop washer 41 for round nut.
Because this special tooling is in the time normally using, ceaselessly forward and backward of screw mandrel, thereby the screw mandrel rotating is very easily to makingUser causes personal injury. For this reason, be arranged with respectively interior screw mandrel protective cover 28, out screw rod protective cover 29 at the two ends of screw mandrel, inScrew mandrel protective cover 28, out screw rod protective cover 29 are to be all made up of the retractility such as rubber or plastics material, make interior screw mandrel protective cover 28,Out screw rod protective cover 29 is all scalable. This interior screw mandrel protective cover 28 is set in the side near cone gear 21 on screw mandrel, outerScrew mandrel protective cover 29 is set in the side away from cone gear 21 on screw mandrel 12, and the protection of interior screw mandrel protective cover 28, out screw rodCover 29 1 the first from left and be distributed in the two ends of the second slide block 9 rightly, and interior screw mandrel protective cover 28, out screw rod protective cover 29 are all by the 4thScrew 30 is fastened on the second slide block 9. By arrange interior screw mandrel protective cover 28, out screw rod protective cover 29 can effectively avoid screw mandrel withUser directly contacts, thereby effectively avoids screw mandrel to rotate the personal injury that user is caused.
This special tooling may often can face the problem of dismounting and taking up room of special tooling in the time of normal useProblem, thereby the connection request between part parts is relatively optimized, structure is comparatively simplified. For this reason, this screw mandrel and circular coneBetween pinion 19, connect by shaft coupling 43, this shaft coupling 43 is tube-in-tube structure, and the proximal part of screw mandrel is set in shaft couplingIn the through hole of device 43, the distal end of the axle of cone pinion 19 is also set in the through hole of shaft coupling 43, and screw mandrel and shaft coupling43, between shaft coupling 43 and cone pinion 19, be all connected by taper bolt 44.
For the ease of lifting and the carrying of whole special tooling, thereby on the face of cylinder and plane of the side end face on chassis 1Be provided with the lifting bolt 49 for lifting. When this special tooling of lifting carrying, the suspension ring of suspension hook directly and on this 1 side, chassisScrew 49 connects.
Embodiment 1
A kind of partition board of steam turbine leaf grating assembling and welding special tooling, comprise chassis 1, and establish the top of the upper surface on described chassis 1Have cone gear 21, described cone gear 21 can freely rotate around the axis of cone gear 21; The upper table on described chassis 1The top of face is provided with some screw mandrels, and some screw mandrels are around the circumferential distribution of cone gear 21, every rhizoid bar be close to circular coneThe end of gear wheel 21 1 sides is connected with cone pinion 19, and described cone pinion 19 engages with cone gear 21; DescribedSecond slide block 9 that has been threaded on screw mandrel, described the second slide block 9 can be on screw mandrel moving axially along screw mandrel; Described second is slidingOn piece 9, be provided with interior claw 8 and outer claw 4, described interior claw 8, outer claw 4 are radially set gradually by interior outward along chassis 1.
Embodiment 2
On the basis of embodiment mono-, the end face of described interior claw 8 offers inner card cage 81, and described interior claw 8 is provided with and can revolvesWhat enter inner card cage 81 screws inner bolt 82.
Embodiment 3
On the basis of embodiment mono-or embodiment bis-, the end face of described outer claw 4 offers exterior bayonet slot 401, described outer claw 4Be provided with can screw in exterior bayonet slot 401 screw male screw thread 402.
Embodiment 4
On the basis of embodiment mono-, embodiment bis-or embodiment tri-, in the exterior bayonet slot of described outer claw 4 401 or interior claw 8Inner card cage 81 in, the end face of described gradient calibrated bolck 46 is inclined-plane.
Embodiment 5
On the basis of above-described embodiment, the bottom surface of described outer claw 4 offers container cavity, in described container cavity, is provided with adjustingStraight pin 47, the lower end of described adjusting straight pin 47 is threaded with the second slide block 9, and the upper end of described adjusting straight pin 47 is stretched intoIn the exterior bayonet slot 401 at outer claw 4 tops.
Embodiment 6
On the basis of above-described embodiment, radially offer chute 91, described chute 91 along chassis 1 on described the second slide block 9On be provided with the first slide block 7, described the first slide block 7 can be interior the radially sliding along chassis 1 of chute 91; Described the second slide block 9On end face away from cone gear 21 1 sides, be connected with gripper shoe 2, in described gripper shoe 2, be connected with fine setting screw mandrel 3, described micro-Adjust screw mandrel 3 in gripper shoe 2, freely to rotate around the axis of fine setting screw mandrel 3, the free end of described fine setting screw mandrel 3 and the first slide block7 are threaded.
Embodiment 7
On the basis of above-described embodiment, on described chassis 1, be fixedly connected with cup 34, on described cup 34, offer through hole,On described cup 34, be connected with center centering flat board 36, the threaded rod of described center centering flat board 36 is sheathed on the through hole of cup 34In, described center centering flat board 36 can freely rotate at the axis of cup 34Shang Rao center centering flat board 36, described center centeringSpill spin block 35 has been threaded on dull and stereotyped 36 threaded rod.
Embodiment 8
On the basis of above-described embodiment, the side near cone gear 21 on described screw mandrel is arranged with interior screw mandrel protective cover28, the side near cone gear 21 on described screw mandrel is arranged with out screw rod protective cover 29.
Embodiment 9
On the basis of above-described embodiment, wherein, described screw mandrel is connected by shaft coupling 43 with cone pinion 19, described screw mandrelProximal part be set in shaft coupling 43, the distal end of described cone pinion 19 is set in shaft coupling 43, and described screw mandrelAll be connected by taper bolt 44 with cone pinion 19 with shaft coupling 43, shaft coupling 43.
Embodiment 10
On the basis of above-described embodiment, the side end face on described chassis 1 comprises the face of cylinder and plane, the side end face on described chassis 1The face of cylinder and plane on be provided with the lifting bolt 49 for lifting.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all in essence of the present inventionAny amendment of doing within god and principle, be equal to replacement and improvement etc., within protection scope of the present invention all should be included in.
Claims (10)
1. the assembling of partition board of steam turbine leaf grating and a welding special tooling, is characterized in that: comprise chassis (1), described chassis (1)The top of upper surface be provided with cone gear (21), described cone gear (21) can around the axis of cone gear (21) fromBy rotating; The top of the upper surface on described chassis (1) is provided with some screw mandrels (12), and some screw mandrels (12) are around cone gear(21) circumferential distribution, the end that is close to cone gear (21) one sides of every rhizoid bar (12) is connected with cone pinion(19), described cone pinion (19) engages with cone gear (21); The second slide block has been threaded on described screw mandrel (12)(9), described the second slide block (9) can be upper the moving axially along screw mandrel (12) of screw mandrel (12); On described the second slide block (9), be provided withInterior claw (8) and outer claw (4), described interior claw (8), outer claw (4) be (1) radially set gradually by interior outward along chassis.
2. a kind of partition board of steam turbine leaf grating assembling as claimed in claim 1 and welding special tooling, is characterized in that: in describedThe end face of claw (8) offers inner card cage (81), and described interior claw (8) is provided with the inner bolt that screws that can screw in inner card cage (81)（82）。
3. a kind of partition board of steam turbine leaf grating assembling as claimed in claim 1 and welding special tooling, is characterized in that: outside describedThe end face of claw (4) offers exterior bayonet slot (81), and described outer claw (4) is provided with the outer spiral shell that screws that can screw in exterior bayonet slot (401)Nail (402).
4. a kind of partition board of steam turbine leaf grating assembling as claimed in claim 1 and welding special tooling, is characterized in that: outside describedIn the exterior bayonet slot (81) of claw (4) or in the inner card cage (81) of interior claw (8), be provided with gradient calibrated bolck (46), described gradient signThe end face of accurate piece (46) is inclined-plane.
5. a kind of partition board of steam turbine leaf grating assembling as claimed in claim 1 and welding special tooling, is characterized in that: outside describedThe bottom surface of claw (4) offers container cavity, is provided with and regulates straight pin (47), described adjusting straight pin (47) in described container cavityLower end be threaded with the second slide block (9), the exterior bayonet slot at outer claw (4) top is stretched in the upper end of described adjusting straight pin (47)(81) in.
6. as a kind of partition board of steam turbine leaf grating assembling and welding special tooling as described in arbitrary in claim 1 to 5, its feature existsIn: described the second slide block (9) upper along chassis (1) radially offer chute (91), on described chute (91), be provided with first slidingPiece (7), described the first slide block (7) can be in chute (91) along chassis the radially sliding of (1); Described the second slide block (9) away fromOn the end face of cone gear (21) one sides, be connected with gripper shoe (2), in described gripper shoe (2), be connected with fine setting leading screw (3), instituteStating fine setting leading screw (3) can freely rotate at the upper axis around fine setting leading screw (3) of gripper shoe (2), the freedom of described fine setting leading screw (3)End is threaded with the first slide block (7).
7. a kind of partition board of steam turbine leaf grating assembling as claimed in claim 1 and welding special tooling, is characterized in that: the described endOn dish (1), be fixedly connected with cup (34), described cup offers through hole on (34), is connected with center and looks on described cup (34)Positive dull and stereotyped (36), the threaded rod of described center centering flat board (36) is sheathed in the through hole of cup (34), and described center centering is flatPlate (36) can freely rotate at the axis of cup (34) Shang Rao center centering flat board (36), the spiral shell of described center centering flat board (36)Spill spin block (35) has been threaded on rasp bar.
8. a kind of partition board of steam turbine leaf grating assembling as claimed in claim 1 and welding special tooling, is characterized in that: described silkThe upper side near cone gear (21) of bar (12) is arranged with interior leading screw protective cover (28), and described screw mandrel (12) is upper near circular coneOne side of gear wheel (21) is arranged with outer leading screw protective cover (29).
9. a kind of partition board of steam turbine leaf grating assembling as claimed in claim 1 and welding special tooling, is characterized in that: described silkBar (12) is connected by shaft coupling (43) with cone pinion (19), and the proximal part of described screw mandrel (12) is set in shaft coupling (43)In, the distal end of described cone pinion (19) is set in shaft coupling (43), and described screw mandrel (12) and shaft coupling (43), connectionAxial organ (43) is all connected by taper bolt (44) with cone pinion (19).
10. a kind of partition board of steam turbine leaf grating assembling as claimed in claim 1 and welding special tooling, is characterized in that: described inThe side end face on chassis (1) comprises the face of cylinder and plane, in the face of cylinder of the side end face of described chassis (1) and plane, be provided with forThe lifting bolt (49) of lifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610126012.8A CN105583563A (en) | 2016-03-04 | 2016-03-04 | Special steam turbine diaphragm blade grid assembling and welding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610126012.8A CN105583563A (en) | 2016-03-04 | 2016-03-04 | Special steam turbine diaphragm blade grid assembling and welding tool |
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| Publication Number | Publication Date |
|---|---|
| CN105583563A true CN105583563A (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610126012.8A Pending CN105583563A (en) | 2016-03-04 | 2016-03-04 | Special steam turbine diaphragm blade grid assembling and welding tool |
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| CN (1) | CN105583563A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424565A (en) * | 2016-12-06 | 2017-02-22 | 株洲中航动力精密铸造有限公司 | Clamp for repairing guider wax pattern |
| CN108906434A (en) * | 2018-08-16 | 2018-11-30 | 北京机电研究所有限公司 | A kind of nozzle adjustable |
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| CN101391361A (en) * | 2008-11-04 | 2009-03-25 | 东方电气集团东方汽轮机有限公司 | Steam turbine blade shroud-band guide-bucket location-hole cutting tool |
| CN101391360A (en) * | 2008-11-04 | 2009-03-25 | 东方电气集团东方汽轮机有限公司 | Steam turbine blade-cascade assembling frock |
| CN101797674A (en) * | 2010-03-31 | 2010-08-11 | 杭州汽轮机股份有限公司 | Positioning fixture for welding baffle plate |
| JP2013013921A (en) * | 2011-07-05 | 2013-01-24 | Hitachi Ltd | Automatic welding system and automatic welding method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391361A (en) * | 2008-11-04 | 2009-03-25 | 东方电气集团东方汽轮机有限公司 | Steam turbine blade shroud-band guide-bucket location-hole cutting tool |
| CN101391360A (en) * | 2008-11-04 | 2009-03-25 | 东方电气集团东方汽轮机有限公司 | Steam turbine blade-cascade assembling frock |
| CN101797674A (en) * | 2010-03-31 | 2010-08-11 | 杭州汽轮机股份有限公司 | Positioning fixture for welding baffle plate |
| JP2013013921A (en) * | 2011-07-05 | 2013-01-24 | Hitachi Ltd | Automatic welding system and automatic welding method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106424565A (en) * | 2016-12-06 | 2017-02-22 | 株洲中航动力精密铸造有限公司 | Clamp for repairing guider wax pattern |
| CN108906434A (en) * | 2018-08-16 | 2018-11-30 | 北京机电研究所有限公司 | A kind of nozzle adjustable |
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