CN103990725B - Expanding head voussoir safeguard structure - Google Patents
Expanding head voussoir safeguard structure Download PDFInfo
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- CN103990725B CN103990725B CN201410215334.0A CN201410215334A CN103990725B CN 103990725 B CN103990725 B CN 103990725B CN 201410215334 A CN201410215334 A CN 201410215334A CN 103990725 B CN103990725 B CN 103990725B
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- voussoir
- outer circumference
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Abstract
A kind of expanding head voussoir safeguard structure, including lower link bar, on the outer circumference surface of described lower link bar, cone is installed, the outer circumference surface of described cone installs the voussoir coordinating slip with it, on the outer circumference surface of described voussoir, outer mold piece is installed, long T-shaped key is installed between described cone and voussoir, it is also equipped with support ring on the outer circumference surface of described lower link bar, short T-shaped key and guide ring are installed between described support ring end face and the end face of voussoir, being positioned on the lower link bar of cone one end installation drip ring, front end nut is installed in described drip ring one end；The outer circumference surface uniform intervals of described cone is provided with 12 voussoirs, and the outer circumference surface of each voussoir installs outer mold piece, and the gap location between adjacent two voussoirs installs U-shaped dust excluder.Present configuration is compact, reasonable, easy for installation, by the design of U-shaped dust excluder, effectively prevents foreign body from falling between friction pair, extends the service life of expanding head, improves work efficiency.
Description
Technical field
The present invention relates to expanding equipment technical field, especially a kind of expanding head voussoir safeguard structure.
Background technology
At present, in expanding equipment, expanding head is critical component in expanding equipment.Expanding frock configuration expanding head, limited space shared by it, shape is complicated with embedding structure, the fixing guarantee expanding head uniform force of expanding frock, expanding head stress be: the axially-movable of pull bar is changed the radial motion directly contacting steel pipe modular walls, reach to eliminate briquetting pressure and the welding stress of generation during welding that steel pipe produces in forming process, and ensure that steel pipe total length section diameter is basically identical.Expanding head, it includes that multiple workpiece assemblings such as the T-shaped key of cone, voussoir, length, backing plate, module combine, is directly loadable on expanding machine after completing its assembling.
In prior art, the bevel friction pair partial denudation of voussoir and cone outside, easily has foreign body to fall into, causes friction pair to be easily damaged between such friction pair, the service life of expanding head is short.
Summary of the invention
The applicant is for the shortcoming in above-mentioned existing production technology, it is provided that a kind of expanding head voussoir safeguard structure rational in infrastructure, thus extends the service life of friction pair two pieces, reduces often cleaning, maintenance time used by friction pair, improves expanding work efficiency.
The technical solution adopted in the present invention is as follows:
A kind of expanding head voussoir safeguard structure, including lower link bar, on the outer circumference surface of described lower link bar, cone is installed, the outer circumference surface of described cone installs the voussoir coordinating slip with it, on the outer circumference surface of described voussoir, outer mold piece is installed, long T-shaped key is installed between described cone and voussoir, it is also equipped with support ring on the outer circumference surface of described lower link bar, short T-shaped key and guide ring are installed between described support ring end face and the end face of voussoir, being positioned on the lower link bar of cone one end installation drip ring, front end nut is installed in described drip ring one end；The outer circumference surface uniform intervals of described cone is provided with 12 voussoirs, and the outer circumference surface of each voussoir installs outer mold piece, and the gap location between adjacent two voussoirs installs U-shaped dust excluder.
Further improvement as technique scheme:
The medial surface of adjacent two voussoirs has arc groove, and two ends, described U-shaped dust excluder top are extended with bending structure, and described bending structure snaps in voussoir top.
Beneficial effects of the present invention is as follows:
Present configuration is compact, reasonable, easy for installation, by the design of U-shaped dust excluder, effectively prevents foreign body from falling between friction pair, extends the service life of expanding head, improves work efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the full sectional view in Fig. 1 along Section A-A.
Wherein: 1, lower link bar；2, support ring；3, cone；4, guide ring；5, short T-shaped key；6, T-shaped key is grown；7, voussoir；8, outer mold piece；9, drip ring；10, front end nut；11, U-shaped dust excluder.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is described.
As depicted in figs. 1 and 2, the expanding head voussoir safeguard structure of the present embodiment, including lower link bar 1, cone 3 is installed on the outer circumference surface of lower link bar 1, the outer circumference surface of cone 3 installs the voussoir 7 coordinating slip with it, outer mold piece 8 is installed on the outer circumference surface of voussoir 7, long T-shaped key 6 is installed between cone 3 and voussoir 7, support ring 2 it is also equipped with on the outer circumference surface of lower link bar 1, short T-shaped key 5 and guide ring 4 are installed between the end face of support ring 2 end face and voussoir 7, being positioned on the lower link bar 1 of cone 3 one end installation drip ring 9, front end nut 10 is installed in drip ring 9 one end；The outer circumference surface uniform intervals of cone 3 is provided with 12 voussoirs 7, and the outer circumference surface of each voussoir 7 installs outer mold piece 8, and the gap location between adjacent two voussoirs 7 installs U-shaped dust excluder 11.
The medial surface of adjacent two voussoirs 7 has arc groove, and two ends, U-shaped dust excluder 11 top are extended with bending structure, and bending structure snaps in voussoir 7 top.
During actually used, due to the design of U-shaped dust excluder 11, during expanding head uses, foreign body will not fall between cone 3 and voussoir 7, and cleaning is convenient, improves work efficiency.
Above description is explanation of the invention, is not the restriction to invention, and limited range of the present invention sees claim, within protection scope of the present invention, can make any type of amendment.
Claims (1)
1. an expanding head voussoir safeguard structure, it is characterized in that: include lower link bar (1), cone (3) is installed on the outer circumference surface of described lower link bar (1), the outer circumference surface of described cone (3) installs the voussoir (7) coordinating slip with it, outer mold piece (8) is installed on the outer circumference surface of described voussoir (7), long T-shaped key (6) is installed between described cone (3) and voussoir (7), support ring (2) it is also equipped with on the outer circumference surface of described lower link bar (1), short T-shaped key (5) and guide ring (4) are installed between the end face of described support ring (2) end face and voussoir (7), it is positioned on the lower link bar (1) of cone (3) one end and drip ring (9) is installed, front end nut (10) is installed in described drip ring (9) one end；The outer circumference surface uniform intervals of described cone (3) is provided with 12 voussoirs (7), and the outer circumference surface of each voussoir (7) installs outer mold piece (8), and the gap location between adjacent two voussoirs (7) installs U-shaped dust excluder (11)；The medial surface of adjacent two voussoirs (7) has arc groove, and described U-shaped dust excluder (11) two ends, top are extended with bending structure, and described bending structure snaps in voussoir (7) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215334.0A CN103990725B (en) | 2014-05-21 | 2014-05-21 | Expanding head voussoir safeguard structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215334.0A CN103990725B (en) | 2014-05-21 | 2014-05-21 | Expanding head voussoir safeguard structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103990725A CN103990725A (en) | 2014-08-20 |
| CN103990725B true CN103990725B (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410215334.0A Active CN103990725B (en) | 2014-05-21 | 2014-05-21 | Expanding head voussoir safeguard structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN103990725B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365661A (en) * | 2018-12-25 | 2019-02-22 | 山东禹王管业有限公司 | A kind of expanding equipment of spigot-and-socket welded still pipe |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3986383A (en) * | 1974-01-02 | 1976-10-19 | Petteys Howard A | Expander tool |
| EP1118401A1 (en) * | 2000-01-21 | 2001-07-25 | Virax S.A. | Expanding device for forming bells at tube ends |
| CN2464472Y (en) * | 2001-01-19 | 2001-12-12 | 王及元 | Diameter enlarging machine |
| JP2007229766A (en) * | 2006-03-01 | 2007-09-13 | Sugino Mach Ltd | Tube expanding apparatus |
| CN201046483Y (en) * | 2007-05-24 | 2008-04-16 | 天水锻压机床有限公司 | Steel pipe expanding head |
| CN202427849U (en) * | 2011-12-27 | 2012-09-12 | 成都飞机工业（集团）有限责任公司 | Pipe flaring device |
| CN103447398A (en) * | 2013-09-05 | 2013-12-18 | 无锡双友石化机械有限公司 | Independent module positioning orientation mechanism |
| CN203862880U (en) * | 2014-05-21 | 2014-10-08 | 无锡双友石化机械有限公司 | Wedge block protecting structure of diameter-expansion head |
-
2014
- 2014-05-21 CN CN201410215334.0A patent/CN103990725B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3986383A (en) * | 1974-01-02 | 1976-10-19 | Petteys Howard A | Expander tool |
| EP1118401A1 (en) * | 2000-01-21 | 2001-07-25 | Virax S.A. | Expanding device for forming bells at tube ends |
| CN2464472Y (en) * | 2001-01-19 | 2001-12-12 | 王及元 | Diameter enlarging machine |
| JP2007229766A (en) * | 2006-03-01 | 2007-09-13 | Sugino Mach Ltd | Tube expanding apparatus |
| CN201046483Y (en) * | 2007-05-24 | 2008-04-16 | 天水锻压机床有限公司 | Steel pipe expanding head |
| CN202427849U (en) * | 2011-12-27 | 2012-09-12 | 成都飞机工业（集团）有限责任公司 | Pipe flaring device |
| CN103447398A (en) * | 2013-09-05 | 2013-12-18 | 无锡双友石化机械有限公司 | Independent module positioning orientation mechanism |
| CN203862880U (en) * | 2014-05-21 | 2014-10-08 | 无锡双友石化机械有限公司 | Wedge block protecting structure of diameter-expansion head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103990725A (en) | 2014-08-20 |
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Address after: 214161 lakes in Jiangsu province Wuxi City foreshore Hu Dai Shu Lu Yang Industrial Park, No. 28 Patentee after: Jiangsu two friends intelligent equipment Polytron Technologies Inc Address before: 214161 lakes in Jiangsu province Wuxi City foreshore Hudai Industrial Park North Link Road No. three Patentee before: Wuxi Sunyou General Machine Co., Ltd. |