CN107020474A - A kind of large-scale double-layer thin wall D types section vacuum chamber overall cyclic frock and process - Google Patents
A kind of large-scale double-layer thin wall D types section vacuum chamber overall cyclic frock and process Download PDFInfo
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- CN107020474A CN107020474A CN201610068724.9A CN201610068724A CN107020474A CN 107020474 A CN107020474 A CN 107020474A CN 201610068724 A CN201610068724 A CN 201610068724A CN 107020474 A CN107020474 A CN 107020474A
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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
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/30—Chains, hoops or rings
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Abstract
The present invention is a kind of large-scale double-layer thin wall D types section vacuum chamber overall cyclic frock and process, belong to magnetic confinement controlled thermonuclear fusion vacuum equipment manufacture field, specifically related to a kind of cyclic fabricating tools of laminated vacuum container, including bottom chassis part, middle part connecting part, top positioning element, integrated connection part.Technical solution of the present invention is by making cyclic special tooling, both overall dimension after cyclization had been ensure that, in turn ensure that each the window's position, trunnion pivot position installation it is accurate, vacuum chamber can be met into ring size and Geometrical Tolerance Principle, each fan-shaped section of vacuum chamber is solved into ring group to benchmark and fixation problem.
Description
Technical field
The invention belongs to magnetic confinement controlled thermonuclear fusion vacuum equipment manufacture field, and in particular to a kind of interlayer is true
The cyclic fabricating tools of empty container.
Background technology
In order to develop Future New Energy Source, each developed country is all being actively developed using tokamak as main path
Magnetic confinement nuclear fusion is studied.Vacuum chamber is one of topmost part in Magnetic-confinement thermonuclear fusion research device,
Vacuum chamber is made up of 20 fan-shaped sections altogether, and each fan-shaped section is the double-deck hyperboloid thin-wall construction in space,
It is welded by inner casing, runner channel-section steel, shell, sleeve pipe, end face gusset and window assembly, material of main part is
Nickel-base alloy.Each fan-shaped section is arranged with different type window in vacuum chamber, and vacuum chamber is not only internal to be equipped with
A large amount of inner parts, and outside is equipped with supporting construction and large scale coil device.Coil installation site and cut-off
Window slot it is limited, overall dimension after cyclization should be ensured, ensure each the window's position, trunnion pivot again
The installation of position is accurate, and vacuum chamber is very high into ring size and Geometrical Tolerance Principle, and 20 fan-shaped sections have been manufactured
Overall cyclization after is the key that it is successfully manufactured.
Therefore, a kind of overall cyclic frock of large-scale double-layer thin wall D types section vacuum chamber of development and technique side are needed badly
Method, so as to smoothly complete the overall cyclization after the completion of 20 fan-shaped section manufactures.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of large-scale double-layer thin wall D types section vacuum chamber it is overall into
Ring frock and process, with solve each the window's position of vacuum chamber after the overall cyclization of 20 fan-shaped sections and its cyclization,
The installation site and its overall dimension of trunnion pivot meet the problem of requiring.
In order to realize this purpose, the present invention is adopted the technical scheme that：
A kind of overall cyclic frock of large-scale double-layer thin wall D types section vacuum chamber, vacuum chamber is altogether by 20 fan-shaped sections
Composition, each fan-shaped section is the double-deck hyperboloid thin-wall construction in space, including bottom chassis part, middle part connect
Relay part, top positioning element, integrated connection part；
(1) bottom chassis part
Bottom chassis part by upper plate I, upper plate II, upper plate III, I-steel I, I-steel II,
Lower shoe, gusset I, ring flat-plate I, ring flat-plate II, gusset II, hanger, gusset III, gusset VI are constituted；
(1.1) lower shoe and I-steel
Lower shoe is that internal diameter is 1880mm, and external diameter is 4000mm, and thickness is 36mm ring flat-plate；
Plane where lower shoe central shaft and lower shoe is perpendicular and passes through the geometric center of lower shoe, along bottom
The welding of plate central shaft sets 16 blocks of I-steel I and II pair of 4 blocks of I-steel II, every block of I-steel I and I-steel
The angle of circumference answered all is 18 °, wherein being set respectively between every block of I-steel II and two blocks of adjacent I-steel II
3 pieces and 5 blocks of I-steel I；The position of 4 pieces of 4 hangers of correspondence of I-steel II；
I-steel I is that length is 1061mm, and specification is 25b I-steel；I-steel II is that length is 940mm,
Specification is 25b I-steel；
(1.2) upper plate
Upper plate is arranged on lower shoe top, including upper plate I, upper plate II, upper plate III, San Zheyan
Lower shoe central shaft is welded with I-steel I and I-steel II successively from inside to outside, upper plate I, upper plate II,
Upper plate III is parallel with lower shoe, coaxial, and thickness is 36mm concentric ring-shaped structure, and three is same
In plane；
Wherein the internal diameter of upper plate I is 3450mm, and external diameter is 4000mm；Circumferentially disposed the 15 of upper plate I
Individual a diameter of 80mm window positioning hole, the center of circle of 15 window positioning holes is in the same of a diameter of 3560mm
On individual circle, particular location is correspondingly arranged according to the position of window in vacuum chamber；One of window positioning hole pair
Answer the position to vented fire mouthful that setting is chosen in vacuum chamber fan-shaped section；
The internal diameter of upper plate II is 2810mm, and external diameter is 3210mm；
The internal diameter of upper plate III is 1880mm, and external diameter is 2280mm；It is straight along upper plate III circumferentially disposed 20
Footpath is 26mm bolt connecting hole and a delineation position locking ring, and bolt connecting hole is located on Φ 1940 circumference, fixed
Position locking ring is located between the upper surface inner circle of upper plate III and Φ 1900mm circumference, clasp step depth 10mm；
(1.3) ring flat-plate, gusset and hanger
Ring flat-plate includes the ring flat-plate I and ring flat-plate II of tubular structure；Gusset include gusset I, gusset II, gusset III,
Gusset VI；
Ring flat-plate I and upper plate I are coaxial, are welded on by gusset I above upper plate I, the internal diameter of ring flat-plate I
For 3770mm, external diameter is 3790mm, and thickness is 20mm, is highly 267.7mm；
Ring flat-plate II and upper plate II are coaxial, are welded on by gusset II above upper plate II, the internal diameter of ring flat-plate II
For 3000mm, external diameter is 3020mm, and thickness is 20mm, is highly 179.9mm；
The difference in height of ring flat-plate I and ring flat-plate II is set according to the size of vacuum chamber fan-shaped section；
4 hangers are arranged between lower shoe and upper plate III, are welded respectively with lower shoe, upper plate III；
1 gusset III of root weld of each hanger, 2 gussets VI；
Gusset III, gusset VI and I-steel I and I-steel II are contour, and gusset III is perpendicular to lower shoe and under
Bottom plate tangent to periphery direction carries out reinforcement fixation from the circumferential of lower shoe to hanger；Gusset VI is both perpendicular under
Bottom plate and gusset III, reinforcement fixation is carried out along lower shoe radial direction to hanger；
(2) part connecting part in
Middle part connecting part by channel-section steel I, channel-section steel II, ring I, ring II, ring III, cushion block, centre of location axle,
Channel-section steel III, holding screw composition；
(2.1) ring I, ring II, ring III
One ring I, three rings II, a ring III are all the cylinder-like structure coaxial with lower shoe, its internal diameter
All it is 1880mm, external diameter is all 2000mm, height is all 50mm；Ring I, three rings II, ring III are along same
Central shaft is arranged from the bottom up successively, and spacing is respectively 885mm, 820mm, 820mm, 820mm；
Along I circumferentially disposed 26 a diameter of 26mm of ring bolt connecting hole and a delineation position locking ring, bolt connects
Hole position is connect on Φ 1940mm circumference, positioning clasp is located at cylindrical and Φ 1900mm the circumference of the lower surface of ring I
Between, clasp step depth 10mm；
It is 6mm, wide 36mm type groove and 20 to be evenly distributed in the outside of every ring II provided with 20 depth
Individual a diameter of 16mm set screw hole, set screw hole along the radial penetration ring width of ring II, adjacent type groove or
Adjacent set screw hole correspondence angle of circumference is 18 °, and each type groove angle of circumference corresponding with set screw hole is 9 °；
20 depth are set to be 6mm, wide 36mm type groove and 12 bolt connecting holes, phase in the outside of ring III
Adjacent type groove correspondence angle of circumference is 18 °, and bolt connecting hole is uniformly on the Φ 1940mm of ring III circumference；
(2.2) channel-section steel, cushion block and centre of location axle
The channel-section steel III being distributed uniformly and circumferentially is set between the bottom of ring I and the top of ring III, channel-section steel III with
Ring I, ring II, ring III are welded and fixed；The specification of channel-section steel III is No. 22 channel-section steels；
The top of channel-section steel I and channel-section steel II and channel-section steel III is welded and fixed, the two be welded into cross hang structure and with
Ring III is on identical height and position；The specification of channel-section steel I and channel-section steel II is No. 20 channel-section steels；
A diameter of 60mm centre bore is opened up in the centre of channel-section steel I, length is 100mm, and width is 100mm
Cushion block be welded on the centre bore bottom of channel-section steel I and open up the through hole consistent with the centre bore of channel-section steel I；Pass through groove
The through hole of the centre bore of steel I and cushion block is worn such as centre of location axle；
(3) top positioning element
Top positioning element is made up of top ring flat-plate I, top ring flat-plate II and angle steel；
It is the concentric ring-shaped knot coaxial with lower shoe in conplane top ring flat-plate I and top ring flat-plate II
Structure.Wherein, the internal diameter of top ring flat-plate I is 3410mm, and external diameter is 3710mm, and thickness is 36mm；Top ring flat-plate
II internal diameter is 1880mm, and external diameter is 2080mm, and thickness is 36mm；The inner circle and upper board of ring flat-plate I on top
II it is cylindrical between pass through Bolted angle connection；
The hole of window positioning hole in window positioning hole, top ring flat-plate I has been evenly distributed on top ring flat-plate I
Position is corresponding and coaxial with the hole position position of window positioning hole in upper plate I；
The hole of positioning bolt hole in positioning bolt hole, top ring flat-plate II has been evenly distributed on top ring flat-plate II
Position is corresponding and coaxial with the hole position position of bolt connecting hole in ring III；
(4) it is connected part
Upper plate III and ring I are connected by studs, nut, so as to assemble bottom chassis part with
Part connecting part；
Ring III and top ring flat-plate II are connected by stud, nut, so that part connecting part and top in assembling
Positioning element；
Positioning pipe I chooses the window to wearing the window's position of setting from the corresponding vacuum chamber fan-shaped section of top ring flat-plate I
Vacuum chamber inner chamber is penetrated at the top of positioning hole, vacuum chamber fan-shaped section top is positioned to vented fire mouthful；
Positioning pipe II from fan-shaped section inner chamber penetrate in upper plate I correspondence vacuum chamber fan-shaped section choose setting to wearing
The window positioning hole of the window's position is positioned.
Further, the overall cyclic frock of a kind of large-scale double-layer thin wall D types section vacuum chamber as described above,
60 set in the outside of ring II set between set screw hole and vacuum chamber copper packings prevent after vacuum chamber cyclization with
Frock is locked, and the size of copper packing is 80mm × 30mm × 1mm.
A kind of overall cyclic process of large-scale double-layer thin wall D types section vacuum chamber, comprises the following steps：
1) cyclic frock is positioned on rotary table, to frock lower component ring flat-plate, middle parts ring with
Rotary table carries out centering；
2) plumb line is hung with molybdenum filament at cyclic frock center, makes vertical summit and rotary table concentric.Will be into
Ring frock is rotated on rotary table, and rechecking adjustment with theodolite makes plumb line be in axle center,
It is used as the follow-up group of center reference centripetal to each fan-shaped section；
3) size is met after requirement in a free state after single fan-shaped section welding, makes cross hang frock plug
Enter and contacted inside fan-shaped section with inner casing, make it that integrally there is enough rigidity；
4) fan-shaped section is placed in cyclic frock, group detects bottom sector to each fan-shaped section on the basis of inner casing
Section reticule, and with the single fan-shaped section intermediate warp threads of theodolite testing and two side end gluten plate perpendicularity；
Utilize shape between the single fan-shaped section angle of rotary table wheel measuring and adjacent sectors central diameter angle, each window
Position size；Using other instrument subsidiary window end face squareness, molding surface size, midplane flatness,
Window symmetry, the window's position precision up and down；
5) there are 5 supporting welding blocks circumferentially divided equally on equipment midplane, each support block rotates along central shaft
Angle is to have 4 fan-shaped sections between 72 °, each support block., first will be with support in order to ensure into ring quality
The fan-shaped section component of block is grouped in cyclic frock, and a fan-shaped section is stayed between adjacent supports block with processing
Both sides cyclization, reduces the error of annulation process accumulation, it is ensured that each fan-shaped section the window's position precision；
6) by each fan-shaped section welding sequence of default carry out successively on the inside of each adjacent sectors continuous weld and
The spot welding and welding of outside intermittent weld, reduce welding deformation and stress, spot welding by way of symmetrical skip welding
And welding process implementing monitoring measurement deformation；
8) welding support block center is detected, is indexed, rule and processed after integral solder cyclization end face,
Bolt hole and center gudgeon hole, it is ensured that the accurate and centripetal requirement of gudgeon centre bore indexed between 5 support blocks.
The beneficial effect of technical solution of the present invention is：By making cyclic special tooling, cyclization both ensure that
Overall dimension afterwards, in turn ensure that each the window's position, trunnion pivot position installation it is accurate, vacuum can be met
Room solves each fan-shaped section of vacuum chamber into ring group to benchmark and fixation problem into ring size and Geometrical Tolerance Principle.
Brief description of the drawings
Fig. 1 is cyclic special tooling front view；
Fig. 2 is cyclic special tooling top view；
Fig. 3 is bottom chassis part front view；
Fig. 4 is bottom chassis part top view；
Fig. 5 is middle part connecting part front view；
Fig. 6 is middle part connecting part top enlarged drawing；
Fig. 7 is middle part connecting part top view；
Fig. 8 is top positioning element top view.
In figure：1 bottom chassis part, part connecting part in 2,3 top positioning elements, 4 positioning pipes I, 5 determine
Position pipe II, 6 copper packings, 7 lower shoes, 8 gussets I, 9 ring flat-plates I, 10 ring flat-plates II, 11 gussets II, on 12 bottom
Plate I, 13 upper plates II, 14 upper plates III, 15 I-steel I, 16 I-steel II, 17 hangers, 18 gussets III, 19
Gusset VI, 20 channel-section steels I, 21 channel-section steels II, 22 rings I, 23 rings II, 24 rings III, 25 cushion blocks, 26 centres of location
Axle, 27 channel-section steels III, 28 holding screws, 29 top ring flat-plates I, 30 top ring flat-plates II, 31 angle steel.
Embodiment
Technical solution of the present invention is further elaborated below by specific embodiment.
A kind of overall cyclic frock of large-scale double-layer thin wall D types section vacuum chamber of the present invention, vacuum chamber is altogether by 20
Fan-shaped section is constituted, and each fan-shaped section is the double-deck hyperboloid thin-wall construction in space, as depicted in figs. 1 and 2,
Including bottom chassis part, middle part connecting part, top positioning element, integrated connection part；
(1) bottom chassis part
As shown in Figure 3 and Figure 4, bottom chassis part is by upper plate I, upper plate II, upper plate III, work
Word steel I, I-steel II, lower shoe, gusset I, ring flat-plate I, ring flat-plate II, gusset II, hanger, gusset
IIIth, gusset VI is constituted；
(1.1) lower shoe and I-steel
Lower shoe is that internal diameter is 1880mm, and external diameter is 4000mm, and thickness is 36mm ring flat-plate；
Plane where lower shoe central shaft and lower shoe is perpendicular and passes through the geometric center of lower shoe, along bottom
The welding of plate central shaft sets 16 blocks of I-steel I and II pair of 4 blocks of I-steel II, every block of I-steel I and I-steel
The angle of circumference answered all is 18 °, wherein being set respectively between every block of I-steel II and two blocks of adjacent I-steel II
3 pieces and 5 blocks of I-steel I；The position of 4 pieces of 4 hangers of correspondence of I-steel II；
I-steel I is that length is 1061mm, and specification is 25b I-steel；I-steel II is that length is 940mm,
Specification is 25b I-steel；
(1.2) upper plate
Upper plate is arranged on lower shoe top, including upper plate I, upper plate II, upper plate III, San Zheyan
Lower shoe central shaft is welded with I-steel I and I-steel II successively from inside to outside, upper plate I, upper plate II,
Upper plate III is parallel with lower shoe, coaxial, and thickness is 36mm concentric ring-shaped structure, and three is same
In plane；
Wherein the internal diameter of upper plate I is 3450mm, and external diameter is 4000mm；Circumferentially disposed the 15 of upper plate I
Individual a diameter of 80mm window positioning hole, the center of circle of 15 window positioning holes is in the same of a diameter of 3560mm
On individual circle, particular location is correspondingly arranged according to the position of window in vacuum chamber；One of window positioning hole pair
Answer the position to vented fire mouthful that setting is chosen in vacuum chamber fan-shaped section；
The internal diameter of upper plate II is 2810mm, and external diameter is 3210mm；
The internal diameter of upper plate III is 1880mm, and external diameter is 2280mm；It is straight along upper plate III circumferentially disposed 20
Footpath is 26mm bolt connecting hole and a delineation position locking ring, and bolt connecting hole is located on Φ 1940 circumference, fixed
Position locking ring is located between the upper surface inner circle of upper plate III and Φ 1900mm circumference, clasp step depth 10mm；
(1.3) ring flat-plate, gusset and hanger
Ring flat-plate includes the ring flat-plate I and ring flat-plate II of tubular structure；Gusset include gusset I, gusset II, gusset III,
Gusset VI；
Ring flat-plate I and upper plate I are coaxial, are welded on by gusset I above upper plate I, the internal diameter of ring flat-plate I
For 3770mm, external diameter is 3790mm, and thickness is 20mm, is highly 267.7mm；
Ring flat-plate II and upper plate II are coaxial, are welded on by gusset II above upper plate II, the internal diameter of ring flat-plate II
For 3000mm, external diameter is 3020mm, and thickness is 20mm, is highly 179.9mm；
The difference in height of ring flat-plate I and ring flat-plate II is set according to the size of vacuum chamber fan-shaped section；
4 hangers are arranged between lower shoe and upper plate III, are welded respectively with lower shoe, upper plate III；
1 gusset III of root weld of each hanger, 2 gussets VI；
Gusset III, gusset VI and I-steel I and I-steel II are contour, and gusset III is perpendicular to lower shoe and under
Bottom plate tangent to periphery direction carries out reinforcement fixation from the circumferential of lower shoe to hanger；Gusset VI is both perpendicular under
Bottom plate and gusset III, reinforcement fixation is carried out along lower shoe radial direction to hanger；
(2) part connecting part in
As shown in Fig. 5~7, middle part connecting part is by channel-section steel I, channel-section steel II, ring I, ring II, ring III, pad
Block, centre of location axle, channel-section steel III, holding screw composition；
(2.1) ring I, ring II, ring III
One ring I, three rings II, a ring III are all the cylinder-like structure coaxial with lower shoe, its internal diameter
All it is 1880mm, external diameter is all 2000mm, height is all 50mm；Ring I, three rings II, ring III are along same
Central shaft is arranged from the bottom up successively, and spacing is respectively 885mm, 820mm, 820mm, 820mm；
Along I circumferentially disposed 26 a diameter of 26mm of ring bolt connecting hole and a delineation position locking ring, bolt connects
Hole position is connect on Φ 1940mm circumference, positioning clasp is located at cylindrical and Φ 1900mm the circumference of the lower surface of ring I
Between, clasp step depth 10mm；
It is 6mm, wide 36mm type groove and 20 to be evenly distributed in the outside of every ring II provided with 20 depth
Individual a diameter of 16mm set screw hole, set screw hole along the radial penetration ring width of ring II, adjacent type groove or
Adjacent set screw hole correspondence angle of circumference is 18 °, and each type groove angle of circumference corresponding with set screw hole is 9 °；
20 depth are set to be 6mm, wide 36mm type groove and 12 bolt connecting holes, phase in the outside of ring III
Adjacent type groove correspondence angle of circumference is 18 °, and bolt connecting hole is uniformly on the Φ 1940mm of ring III circumference；
(2.2) channel-section steel, cushion block and centre of location axle
The channel-section steel III being distributed uniformly and circumferentially is set between the bottom of ring I and the top of ring III, channel-section steel III with
Ring I, ring II, ring III are welded and fixed；The specification of channel-section steel III is No. 22 channel-section steels；
The top of channel-section steel I and channel-section steel II and channel-section steel III is welded and fixed, the two be welded into cross hang structure and with
Ring III is on identical height and position；The specification of channel-section steel I and channel-section steel II is No. 20 channel-section steels；
A diameter of 60mm centre bore is opened up in the centre of channel-section steel I, length is 100mm, and width is 100mm
Cushion block be welded on the centre bore bottom of channel-section steel I and open up the through hole consistent with the centre bore of channel-section steel I；Pass through groove
The through hole of the centre bore of steel I and cushion block is worn such as centre of location axle；
(3) top positioning element
As shown in figure 8, top positioning element is made up of top ring flat-plate I, top ring flat-plate II and angle steel；
It is the concentric ring-shaped knot coaxial with lower shoe in conplane top ring flat-plate I and top ring flat-plate II
Structure.Wherein, the internal diameter of top ring flat-plate I is 3410mm, and external diameter is 3710mm, and thickness is 36mm；Top ring flat-plate
II internal diameter is 1880mm, and external diameter is 2080mm, and thickness is 36mm；The inner circle and upper board of ring flat-plate I on top
II it is cylindrical between pass through Bolted angle connection；
The hole of window positioning hole in window positioning hole, top ring flat-plate I has been evenly distributed on top ring flat-plate I
Position is corresponding and coaxial with the hole position position of window positioning hole in upper plate I；
The hole of positioning bolt hole in positioning bolt hole, top ring flat-plate II has been evenly distributed on top ring flat-plate II
Position is corresponding and coaxial with the hole position position of bolt connecting hole in ring III；
(4) it is connected part
Upper plate III and ring I are connected by studs, nut, so as to assemble bottom chassis part with
Part connecting part；
Ring III and top ring flat-plate II are connected by stud, nut, so that part connecting part and top in assembling
Positioning element；
Positioning pipe I chooses the window to wearing the window's position of setting from the corresponding vacuum chamber fan-shaped section of top ring flat-plate I
Vacuum chamber inner chamber is penetrated at the top of positioning hole, vacuum chamber fan-shaped section top is positioned to vented fire mouthful；
Positioning pipe II from fan-shaped section inner chamber penetrate in upper plate I correspondence vacuum chamber fan-shaped section choose setting to wearing
The window positioning hole of the window's position is positioned.
In the present embodiment, 60 set in the outside of ring II set copper packing between set screw hole and vacuum chamber
Prevent locked with frock after vacuum chamber cyclization, the size of copper packing is 80mm × 30mm × 1mm.
A kind of overall cyclic process of large-scale double-layer thin wall D types section vacuum chamber based on above-mentioned frock includes
Following steps：
1) cyclic frock is positioned on rotary table, to frock lower component ring flat-plate, middle parts ring with
Rotary table carries out centering；
2) plumb line is hung with molybdenum filament at cyclic frock center, makes vertical summit and rotary table concentric.Will be into
Ring frock is rotated on rotary table, and rechecking adjustment with theodolite makes plumb line be in axle center,
It is used as the follow-up group of center reference centripetal to each fan-shaped section；
3) size is met after requirement in a free state after single fan-shaped section welding, makes cross hang frock plug
Enter and contacted inside fan-shaped section with inner casing, make it that integrally there is enough rigidity；
4) fan-shaped section is placed in cyclic frock, group detects bottom sector to each fan-shaped section on the basis of inner casing
Section reticule, and with the single fan-shaped section intermediate warp threads of theodolite testing and two side end gluten plate perpendicularity；
Utilize shape between the single fan-shaped section angle of rotary table wheel measuring and adjacent sectors central diameter angle, each window
Position size；Using other instrument subsidiary window end face squareness, molding surface size, midplane flatness,
Window symmetry, the window's position precision up and down；
5) there are 5 supporting welding blocks circumferentially divided equally on equipment midplane, each support block rotates along central shaft
Angle is to have 4 fan-shaped sections between 72 °, each support block., first will be with support in order to ensure into ring quality
The fan-shaped section component of block is grouped in cyclic frock, and a fan-shaped section is stayed between adjacent supports block with processing
Both sides cyclization, reduces the error of annulation process accumulation, it is ensured that each fan-shaped section the window's position precision；
6) by each fan-shaped section welding sequence of default carry out successively on the inside of each adjacent sectors continuous weld and
The spot welding and welding of outside intermittent weld, reduce welding deformation and stress, spot welding by way of symmetrical skip welding
And welding process implementing monitoring measurement deformation；
8) welding support block center is detected, is indexed, rule and processed after integral solder cyclization end face,
Bolt hole and center gudgeon hole, it is ensured that the accurate and centripetal requirement of gudgeon centre bore indexed between 5 support blocks.
Claims (3)
1. a kind of overall cyclic frock of large-scale double-layer thin wall D types section vacuum chamber, vacuum chamber is made up of 20 fan-shaped sections altogether, each fan-shaped section is the double-deck hyperboloid thin-wall construction in space, it is characterised in that：
Including bottom chassis part, middle part connecting part, top positioning element, integrated connection part；
(1) bottom chassis part
Bottom chassis part is made up of upper plate I, upper plate II, upper plate III, I-steel I, I-steel II, lower shoe, gusset I, ring flat-plate I, ring flat-plate II, gusset II, hanger, gusset III, gusset VI；
(1.1) lower shoe and I-steel
Lower shoe is that internal diameter is 1880mm, and external diameter is 4000mm, and thickness is 36mm ring flat-plate；
Plane where lower shoe central shaft and lower shoe is perpendicular and passes through the geometric center of lower shoe, along the welding of lower shoe central shaft, 16 blocks of I-steel I and 4 blocks of I-steel II are set, every block of I-steel I and the corresponding angle of circumference of I-steel II are all 18 °, wherein setting 3 pieces and 5 blocks of I-steel I respectively between every block of I-steel II and two blocks of adjacent I-steel II；The position of 4 pieces of 4 hangers of correspondence of I-steel II；
I-steel I is that length is 1061mm, and specification is 25b I-steel；I-steel II is that length is 940mm, and specification is 25b I-steel；
(1.2) upper plate
Upper plate is arranged on lower shoe top, including upper plate I, upper plate II, upper plate III, three welds with I-steel I and I-steel II successively from inside to outside along lower shoe central shaft, upper plate I, upper plate II, upper plate III are parallel with lower shoe, coaxial, thickness is 36mm concentric ring-shaped structure, and three is at grade；
Wherein the internal diameter of upper plate I is 3450mm, and external diameter is 4000mm；In circumferentially disposed 15 a diameter of 80mm of upper plate I window positioning hole, the center of circle of 15 window positioning holes is on a diameter of 3560mm same circle, and particular location is correspondingly arranged according to the position of window in vacuum chamber；A position to vented fire mouthful of setting is chosen in one of window positioning hole correspondence vacuum chamber fan-shaped section；
The internal diameter of upper plate II is 2810mm, and external diameter is 3210mm；
The internal diameter of upper plate III is 1880mm, and external diameter is 2280mm；Along III circumferentially disposed 20 a diameter of 26mm of upper plate bolt connecting hole and a delineation position locking ring, bolt connecting hole is located on Φ 1940 circumference, and positioning clasp is located between the upper surface inner circle of upper plate III and Φ 1900mm circumference, clasp step depth 10mm；
(1.3) ring flat-plate, gusset and hanger
Ring flat-plate includes the ring flat-plate I and ring flat-plate II of tubular structure；Gusset includes gusset I, gusset II, gusset III, gusset VI；
Ring flat-plate I and upper plate I are coaxial, are welded on by gusset I above upper plate I, and the internal diameter of ring flat-plate I is 3770mm, and external diameter is 3790mm, and thickness is 20mm, is highly 267.7mm；
Ring flat-plate II and upper plate II are coaxial, are welded on by gusset II above upper plate II, and the internal diameter of ring flat-plate II is 3000mm, and external diameter is 3020mm, and thickness is 20mm, is highly 179.9mm；
The difference in height of ring flat-plate I and ring flat-plate II is set according to the size of vacuum chamber fan-shaped section；
4 hangers are arranged between lower shoe and upper plate III, are welded respectively with lower shoe, upper plate III；In 1 gusset III of root weld of each hanger, 2 gussets VI；
Gusset III, gusset VI and I-steel I and I-steel II are contour, and gusset III perpendicular to lower shoe and carries out reinforcement fixation along lower shoe tangent to periphery direction from the circumferential of lower shoe to hanger；Gusset VI carries out reinforcement fixation along lower shoe radial direction both perpendicular to lower shoe and gusset III to hanger；
(2) part connecting part in
Middle part connecting part is made up of channel-section steel I, channel-section steel II, ring I, ring II, ring III, cushion block, centre of location axle, channel-section steel III, holding screw；
(2.1) ring I, ring II, ring III
One ring I, three rings II, a ring III are all the cylinder-like structures coaxial with lower shoe, and its internal diameter is all 1880mm, and external diameter is all 2000mm, and height is all 50mm；Ring I, three rings II, rings III are arranged from the bottom up successively along same central shaft, and spacing is respectively 885mm, 820mm, 820mm, 820mm；
Along I circumferentially disposed 26 a diameter of 26mm of ring bolt connecting hole and a delineation position locking ring, bolt connecting hole is located on Φ 1940mm circumference, and positioning clasp is located between cylindrical and Φ 1900mm the circumference of the lower surface of ring I, clasp step depth 10mm；
It is evenly distributed in the outside of every ring II provided with the set screw hole that 20 depth are 6mm, wide 36mm type groove and 20 a diameter of 16mm, set screw hole is along the radial penetration ring width of ring II, it is 18 ° that adjacent type groove or adjacent set screw hole, which correspond to angle of circumference, and each type groove angle of circumference corresponding with set screw hole is 9 °；
It is 6mm, wide 36mm type groove and 12 bolt connecting holes that 20 depth are set in the outside of ring III, and adjacent type groove correspondence angle of circumference is 18 °, and bolt connecting hole is uniformly on the Φ 1940mm of ring III circumference；
(2.2) channel-section steel, cushion block and centre of location axle
The channel-section steel III being distributed uniformly and circumferentially is set between the bottom of ring I and the top of ring III, and channel-section steel III is welded and fixed with ring I, ring II, ring III；The specification of channel-section steel III is No. 22 channel-section steels；
The top of channel-section steel I and channel-section steel II and channel-section steel III is welded and fixed, and the two is welded into cross hang structure and is in ring III on identical height and position；The specification of channel-section steel I and channel-section steel II is No. 20 channel-section steels；
A diameter of 60mm centre bore is opened up in the centre of channel-section steel I, length is 100mm, and width is welded on the centre bore bottom of channel-section steel I and opens up the through hole consistent with the centre bore of channel-section steel I for 100mm cushion block；Worn by the through hole of the centre bore of channel-section steel I and cushion block such as centre of location axle；
(3) top positioning element
Top positioning element is made up of top ring flat-plate I, top ring flat-plate II and angle steel；
It is the concentric ring-shaped structure coaxial with lower shoe in conplane top ring flat-plate I and top ring flat-plate II.Wherein, the internal diameter of top ring flat-plate I is 3410mm, and external diameter is 3710mm, and thickness is 36mm；The internal diameter of top ring flat-plate II is 1880mm, and external diameter is 2080mm, and thickness is 36mm；Pass through Bolted angle connection between the inner circle of top ring flat-plate I and the cylindrical of upper board II；
The hole position of window positioning hole and the hole position position of window positioning hole in upper plate I in window positioning hole, top ring flat-plate I are evenly distributed on top ring flat-plate I corresponding and coaxial；
The hole position of positioning bolt hole and the hole position position of bolt connecting hole in ring III in positioning bolt hole, top ring flat-plate II are evenly distributed on top ring flat-plate II corresponding and coaxial；
(4) it is connected part
Upper plate III and ring I are connected by studs, nut, so as to assemble bottom chassis part and middle part connecting part；
Ring III and top ring flat-plate II are connected by stud, nut, so that part connecting part and top positioning element in assembling；
Positioning pipe I is chosen from the corresponding vacuum chamber fan-shaped section of top ring flat-plate I and penetrates vacuum chamber inner chamber at the top of the window positioning hole to wearing the window's position of setting, and vacuum chamber fan-shaped section top is positioned to vented fire mouthful；
Positioning pipe II penetrates in upper plate I correspondence vacuum chamber fan-shaped section from fan-shaped section inner chamber and chooses being positioned to the window positioning hole of wearing the window's position for setting.
2. the overall cyclic frock of a kind of large-scale double-layer thin wall D types section vacuum chamber as claimed in claim 1, it is characterised in that：60 set in the outside of ring II set copper packing to prevent between set screw hole and vacuum chamber locked with frock after vacuum chamber cyclization, and the size of copper packing is 80mm × 30mm × 1mm.
3. the overall cyclic process of a kind of large-scale double-layer thin wall D types section vacuum chamber, it is characterised in that comprise the following steps：
1) cyclic frock is positioned on rotary table, centering is carried out to frock lower component ring flat-plate, middle parts ring and rotary table；
2) plumb line is hung with molybdenum filament at cyclic frock center, makes vertical summit and rotary table concentric.Cyclic frock is rotated on rotary table, rechecking adjustment with theodolite makes plumb line be in axle center, is used as the follow-up group of center reference centripetal to each fan-shaped section；
3) size is met after requirement in a free state after single fan-shaped section welding, and making cross hang frock is filled in be contacted inside fan-shaped section with inner casing, it is integrally had enough rigidity；
4) fan-shaped section is placed in cyclic frock, group is to each fan-shaped section on the basis of inner casing, detection bottom sector section reticule, and with the single fan-shaped section intermediate warp threads of theodolite testing and two side end gluten plate perpendicularity；Utilize morpheme size between the single fan-shaped section angle of rotary table wheel measuring and adjacent sectors central diameter angle, each window；Using other instrument subsidiary window end face squareness, molding surface size, up and down midplane flatness, window symmetry, the window's position precision；
5) there are 5 supporting welding blocks circumferentially divided equally on equipment midplane, each support block is there are 4 fan-shaped sections between 72 °, each support block along the central shaft anglec of rotation.In order to ensure into ring quality, first the fan-shaped section component with support block is grouped in cyclic frock, stays a fan-shaped section with processing both sides cyclization between adjacent supports block, reduces the error of annulation process accumulation, it is ensured that each fan-shaped section the window's position precision；
6) spot welding and welding of continuous weld and outside intermittent weld on the inside of each adjacent sectors are carried out successively by each fan-shaped section welding sequence of default, reduce welding deformation and stress, spot welding and welding process implementing monitoring measurement deformation by way of symmetrical skip welding；
7) detected, indexed, rule and processed end face, bolt hole and center gudgeon hole to welding support block center after integral solder cyclization, it is ensured that the accurate and centripetal requirement of gudgeon centre bore indexed between 5 support blocks.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114769975A (en) * | 2022-06-17 | 2022-07-22 | 中国科学院合肥物质科学研究院 | Welding device and welding method for nuclear fusion vacuum chamber |
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