CN203863287U - Boiler barrel center frame structure - Google Patents
Boiler barrel center frame structure Download PDFInfo
- Publication number
- CN203863287U CN203863287U CN201420245476.7U CN201420245476U CN203863287U CN 203863287 U CN203863287 U CN 203863287U CN 201420245476 U CN201420245476 U CN 201420245476U CN 203863287 U CN203863287 U CN 203863287U
- Authority
- CN
- China
- Prior art keywords
- shaft
- central shaft
- frame structure
- center frame
- locating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model provides a boiler barrel center frame structure. According to the boiler barrel center frame structure, rapid and convenient alignment is guaranteed during alignment welding of a sectional boiler barrel, a worker can easily perform welding, the weld joint quality is ensured, and the production efficiency of a finished product boiler barrel is improved. The boiler barrel center frame structure comprises a center shaft and is characterized in that positioning bulges are outward bulged on two sides of the center shaft respectively, and two positioning frames are arranged on the outer annular surface of the center shaft and are close to the end parts of corresponding sides of the center shaft respectively; each positioning frame comprises at least three positioning shafts which are uniformly distributed on the outer annular surface of the corresponding position of the center shaft, the inner ends of the positioning shafts are welded and connected with the outer annular surface of the center shaft, and the outer ends of the positioning shafts are tightly connected with corresponding outer bulge ejection pin structures; each outer bulge ejection pin structure specifically comprises a bolt provided with an arc surface ejection pin head as well as a stud, the thread part of the bolt is inserted into one end of the stud, and the other end of the stud is tightly connected with the outer end of the corresponding positioning shaft.
Description
Technical field
The utility model relates to the technical field of the tool structure of boiler drum welding, is specially a kind of drum center frame structure.
Background technology
Due to the continuous upgrading adjustment of boiler product structure, drum manufacture is also constantly adjusted, the segmentation drum that boiler steamdrum drum need to be processed by two sections or multistage is merged into the boiler steamdrum drum of finished product by soldering group, while welding between existing segmentation drum, owing to will guaranteeing the stable of weld seam, need respectively by the hanging device segmentation drum of both sides of slinging, then by the weld seam end face of axial contraposition segmentation drum, workman need to weld around weld seam end face, its contraposition complexity, and very easily there is deviation, welding efficiency is low, make the production efficiency of finished product drum low, and the poor quality of weld seam.
Summary of the invention
For the problems referred to above, the utility model provides a kind of drum center frame structure, when it ensures segmentation drum wielding neck contraposition quick and convenient, and workman is welded easily, guarantee the quality of weld seam, make the production efficiency of finished product drum high.
A kind of drum center frame structure, its technical scheme is such: it comprises central shaft, it is characterized in that: there is positioning convex the both sides of described central shaft respectively evagination, the outer ring surface of described central shaft is furnished with two locating racks, described locating rack is the end of the respective side of close described central shaft respectively, each described locating rack comprises at least three locating shafts, described locating shaft is distributed in the outer ring surface of the correspondence position of described central shaft, the inner of described locating shaft is welded to connect the outer ring surface of described central shaft, the outer end of described locating shaft is fastenedly connected corresponding evagination thimble structure, described evagination thimble structure specifically comprises the bolt with arc surface thimble head, double-screw bolt, the threaded portion of described bolt is plugged in one end of described double-screw bolt, the other end of described double-screw bolt is fastenedly connected the outer end of corresponding described locating shaft.
It is further characterized in that: between the adjacent locating shaft of same described locating rack, add strong fix by bracing piece, the two ends of described bracing piece are welded to connect respectively corresponding described locating shaft;
Described central shaft is hollow-core construction, and the wherein outer ring surface of a side positioning convex of described central shaft is set with ball bearing;
The outer face of described locating shaft is provided with adpting flange, and the other end of corresponding described double-screw bolt is provided with flange arrangement, and fastening bolt is fastenedly connected described adpting flange, the flange arrangement of correspondence position;
Preferably, each described locating rack respectively comprises four identical locating shafts, and described locating shaft is distributed in the outer ring surface of the correspondence position of described central shaft.
Adopt after structure of the present utility model, the arc surface thimble head of the evagination thimble structure of two locating rack outer ends is close to respectively the inwall of the corresponding segments drum of two segmentation drums, and the weld seam end face of two segmentation drums fits tightly, one side positioning convex of central shaft is clamped by the furniture of lathe, the positioning convex of the opposite side of central shaft is supported on the supporting base of homonymy, make centre frame prop up the inwall of two segmentation drums, rotated by lathe again, carry out the welding of the weld seam end face of segmentation drum, workman is without welding around weld seam end face, when it ensures segmentation drum wielding neck, contraposition is quick and convenient, and workman is welded easily, guarantee the quality of weld seam, make the production efficiency of finished product drum high.
Brief description of the drawings
Fig. 1 is segmentation drum Welding Structure schematic diagram of the present utility model;
Fig. 2 is side view structural representation of the present utility model;
Fig. 3 is the structural representation of evagination thimble structure of the present utility model.
Detailed description of the invention
A kind of drum center frame structure, is shown in Fig. 1～Fig. 3: it comprises central shaft 1, and there is positioning convex 2 both sides of central shaft 1 respectively evagination, and central shaft 1 is hollow-core construction, and the outer ring surface that the wherein side convex of central shaft 1 is 2 is set with ball bearing 3; The outer ring surface of central shaft 1 is furnished with two locating racks 4, locating rack 4 is the end of the respective side of close central shaft 1 respectively, each locating rack 4 comprises at least three locating shafts 5, locating shaft 5 is distributed in the outer ring surface of the correspondence position of central shaft 1, between the adjacent locating shaft 5 of same locating rack 4, add strong fix by bracing piece 6, the two ends of bracing piece 6 are welded to connect respectively corresponding locating shaft 5; The inner of locating shaft 5 is welded to connect the outer ring surface of central shaft 1, the outer end of locating shaft 5 is fastenedly connected corresponding evagination thimble structure 6, evagination thimble structure 6 specifically comprises bolt 8, the double-screw bolt 9 with arc surface thimble head 7, the threaded portion of bolt 8 is plugged in one end of double-screw bolt 9, and the other end of double-screw bolt 9 is fastenedly connected the outer end of corresponding locating shaft 5.The outer face of locating shaft 5 is provided with adpting flange 10, and the other end of corresponding double-screw bolt 8 is provided with flange arrangement 11, and fastening bolt 12 is fastenedly connected adpting flange 10, the flange arrangement 11 of correspondence position.In Fig. 1,13 is that the fixture, 15 that weld seam end face, 14 is lathe is that supporting base, 16 is segmentation drum.
Preferably, each locating rack 4 respectively comprises four identical locating shafts 5, and locating shaft 5 is distributed in the outer ring surface of the correspondence position of central shaft 1.
Its operation principle is as follows: the bolt 8 of evagination thimble structure is screwed into one end of double-screw bolt 9, put into respectively segmentation drum 16, the bolt 8 of the evagination thimble structure double-screw bolt 9 of back-outing afterwards, guarantee that the arc surface thimble head 7 of the evagination thimble structure of two locating rack outer ends is close to respectively the inwall of the corresponding segments drum of two segmentation drums 16, and the weld seam end face 13 of two segmentation drums 16 fits tightly, a side positioning convex 2 of central shaft 1 is clamped by the fixture 14 of lathe afterwards, the positioning convex 2 that the opposite side of central shaft is set with ball bearing 3 is supported on the supporting base 15 of homonymy, make centre frame prop up the inwall of two segmentation drums 16, rotated by lathe again, drive segmentation drum 16 to rotate, carry out the welding of the weld seam end face 13 of segmentation drum 16, workman is without welding around weld seam end face 13.After welding completes, again the bolt of evagination thimble structure 8 is screwed into one end of double-screw bolt 9, make the inwall of the drum being welded as a whole depart from the arc surface thimble head 7 of the evagination thimble structure of locating rack outer end, afterwards supporting base 15 is withdrawn, take out the drum being welded as a whole.
Wherein, according to the diameter of segmentation drum, can optionally change the double-screw bolt 9 of different length, only need unclamp the fastening bolt 12 of adpting flange 10, flange arrangement 11, it is convenient to change.
Claims (5)
1. a drum center frame structure, it comprises central shaft, it is characterized in that: there is positioning convex the both sides of described central shaft respectively evagination, the outer ring surface of described central shaft is furnished with two locating racks, described locating rack is the end of the respective side of close described central shaft respectively, each described locating rack comprises at least three locating shafts, described locating shaft is distributed in the outer ring surface of the correspondence position of described central shaft, the inner of described locating shaft is welded to connect the outer ring surface of described central shaft, the outer end of described locating shaft is fastenedly connected corresponding evagination thimble structure, described evagination thimble structure specifically comprises the bolt with arc surface thimble head, double-screw bolt, the threaded portion of described bolt is plugged in one end of described double-screw bolt, the other end of described double-screw bolt is fastenedly connected the outer end of corresponding described locating shaft.
2. a kind of drum center frame structure according to claim 1, is characterized in that: between the adjacent locating shaft of same described locating rack, add strong fix by bracing piece, the two ends of described bracing piece are welded to connect respectively corresponding described locating shaft.
3. a kind of drum center frame structure according to claim 1, is characterized in that: described central shaft is hollow-core construction, the wherein outer ring surface of a side positioning convex of described central shaft is set with ball bearing.
4. a kind of drum center frame structure according to claim 1, it is characterized in that: the outer face of described locating shaft is provided with adpting flange, the other end of corresponding described double-screw bolt is provided with flange arrangement, and fastening bolt is fastenedly connected described adpting flange, the flange arrangement of correspondence position.
5. a kind of drum center frame structure according to claim 1, is characterized in that: each described locating rack respectively comprises four identical locating shafts, and described locating shaft is distributed in the outer ring surface of the correspondence position of described central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245476.7U CN203863287U (en) | 2014-05-14 | 2014-05-14 | Boiler barrel center frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420245476.7U CN203863287U (en) | 2014-05-14 | 2014-05-14 | Boiler barrel center frame structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203863287U true CN203863287U (en) | 2014-10-08 |
Family
ID=51644276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420245476.7U Expired - Fee Related CN203863287U (en) | 2014-05-14 | 2014-05-14 | Boiler barrel center frame structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203863287U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990934A (en) * | 2014-05-14 | 2014-08-20 | 无锡华光锅炉股份有限公司 | Drum center rest structure |
-
2014
- 2014-05-14 CN CN201420245476.7U patent/CN203863287U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990934A (en) * | 2014-05-14 | 2014-08-20 | 无锡华光锅炉股份有限公司 | Drum center rest structure |
| CN103990934B (en) * | 2014-05-14 | 2016-01-27 | 无锡华光锅炉股份有限公司 | A kind of drum center frame structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104043939B (en) | Major diameter thin cylinder of the same race docking roof pressing type welds swollen support device | |
| CN206305623U (en) | A kind of thin cylinder crack laser is repaiied and covers anti-deformation fixture | |
| CN102416549A (en) | Butt welding positioning device for thin-walled cylinder with seal head | |
| CN104625549A (en) | Locating clamp for pipeline machining | |
| CN104084736A (en) | Welding clamp suitable for butt joint of circular welds | |
| CN107303633A (en) | Inner support sired results is filled during a kind of thin-wall barrel circumferential weld group pair | |
| CN204262620U (en) | Robot welding system | |
| CN104325239A (en) | Metal pipe welding device | |
| CN204639524U (en) | For the Automatic-clamping frock of thin-wall barrel welding | |
| CN202498330U (en) | Butt welding positioning device of thin-wall cylinder body with head | |
| CN203390477U (en) | Inner support type positioning mold | |
| CN103990934B (en) | A kind of drum center frame structure | |
| CN203863287U (en) | Boiler barrel center frame structure | |
| CN204308503U (en) | For the auxiliary welding tool of steel cylinder docking | |
| CN204239965U (en) | A kind of Circular tube fixer | |
| CN104259500B (en) | Cylindrical workpiece fixture for processing | |
| CN204975873U (en) | Concentric anchor clamps of tubular product | |
| CN107081549B (en) | Shaped piece apparatus for welding and positioning in straight tube | |
| CN204108560U (en) | A kind of metal tube welder | |
| CN204277776U (en) | A kind of centring sleeve device for scraping cleaning mill and centring sleeve assembly | |
| CN207642575U (en) | Conduit all-position automatic welding technology inner support elastic pin shaft | |
| CN110253205A (en) | Tree structure tube welding anti-deformation device and localization method | |
| CN206747856U (en) | Shaped piece apparatus for welding and positioning in a kind of straight tube | |
| CN104493394A (en) | Clamping-head-replaceable welding gun clamping device | |
| CN210677207U (en) | Integral internal expanding gear shaping clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20170514 |