CN203862880U - Wedge block protecting structure of diameter-expansion head - Google Patents
Wedge block protecting structure of diameter-expansion head Download PDFInfo
- Publication number
- CN203862880U CN203862880U CN201420260929.3U CN201420260929U CN203862880U CN 203862880 U CN203862880 U CN 203862880U CN 201420260929 U CN201420260929 U CN 201420260929U CN 203862880 U CN203862880 U CN 203862880U
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- CN
- China
- Prior art keywords
- voussoir
- cone
- outer circumferential
- cone body
- outer circumference
- 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.)
- Withdrawn - After Issue
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Abstract
Provided is a wedge block protecting structure of a diameter-expansion head. The protecting structure comprises a small pull rod; a cone body is installed on the outer circumferential face of the small rod; wedge blocks sliding cooperative with the cone body are installed on the outer circumferential face of the cone body; outer dies are installed on the outer circumferential faces of the wedge block; a long T-type key is installed between the cone body and the wedge block; a support ring is installed on the outer circumferential face of the small rod; a short T-type key and a guiding ring are installed between one end face of the support ring and one end face of the wedge block; a lubricating ring is installed on the small pull rod on one end of the cone body; a front end nut is installed on one end of the lubricating ring; the 12 wedge blocks are uniformly installed on the outer circumferential face of the cone body in a spaced manner; an outer die is installed on the outer circumferential face of each of the dies; and a U-type anti-dust strip is installed at a gap between every adjacent two wedges. The protecting structure is compact, proper and easy to install; by arranging the U-type anti-dust strips, foreign things are prevented from falling between friction pairs; service lifetime of the diameter-expansion head is extended; and working efficiency is improved.
Description
Technical field
The utility model relates to hole enlargement equipment technical field, especially a kind of expanding head voussoir safeguard structure.
Background technology
At present, in hole enlargement equipment, expanding head is critical component in hole enlargement equipment.Hole enlargement frock configuration expanding head, its shared limited space, shape and embedding structure complexity, the fixing guarantee expanding head of hole enlargement frock is stressed evenly, expanding head is stressed is: by the directly radial motion of contact steel pipe modular walls of the axially-movable conversion of pull bar, reach the welding stress producing eliminate the briquetting pressure that produces of steel pipe and welding in forming process time, and ensure that steel pipe total length section diameter is basically identical.Expanding head, it comprises that multiple workpiece assemblies such as cone, voussoir, the T-shaped key of length, backing plate, module form, complete its assembling after directly pack on expanding machine.
In prior art, the secondary part of the bevel friction of voussoir and cone is outside exposed, easily has like this foreign matter to fall between friction pair, causes friction pair easily to damage, and the service life of expanding head is short.
Utility model content
The applicant, for the shortcoming in above-mentioned existing production technology, provides a kind of expanding head voussoir safeguard structure rational in infrastructure, thereby extends the service life of two of friction pairs, reduces and often clears up, maintains the friction pair time used, improves hole enlargement operating efficiency.
The technical scheme that the utility model adopts is as follows:
A kind of expanding head voussoir safeguard structure, comprise lower link bar, on the outer circumference surface of described lower link bar, cone is installed, the outer circumference surface of described cone is installed the voussoir that is mated slip, outer module is installed on the outer circumference surface of described voussoir, long T-shaped key is installed between described cone and voussoir, support ring is also installed on the outer circumference surface of described lower link bar, between described support ring one end face and an end face of voussoir, short T-shaped key and guide ring are installed, be positioned on the lower link bar of cone one end drip ring is installed, front end nut is installed in described drip ring one end; The even interval of outer circumference surface of described cone is provided with 12 voussoirs, and the outer circumference surface of each voussoir is installed outer module, and the gap location between adjacent two voussoirs is installed 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.
The beneficial effects of the utility model are as follows:
The utility model compact conformation, reasonable, easy for installation, by the design of U-shaped dust excluder, effectively prevents that foreign matter from falling between friction pair, extends the service life of expanding head, increases work efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the full sectional view along A-A cross section in Fig. 1.
Wherein: 1, lower link bar; 2, support ring; 3, cone; 4, guide ring; 5, short T-shaped key; 6, grow T-shaped key; 7, voussoir; 8, outer module; 9, drip ring; 10, front end nut; 11, U-shaped dust excluder.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described.
As depicted in figs. 1 and 2, the expanding head voussoir safeguard structure of the present embodiment, comprise 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 is installed the voussoir 7 that is mated slip, outer module 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 is also installed on the outer circumference surface of lower link bar 1, between support ring 2 one end faces and an end face of voussoir 7, short T-shaped key 5 and guide ring 4 are installed, be positioned on the lower link bar 1 of cone 3 one end drip ring 9 is installed, front end nut 10 are installed in drip ring 9 one end; The even interval of outer circumference surface of cone 3 is provided with 12 voussoirs 7, and the outer circumference surface of each voussoir 7 is installed outer module 8, and the gap location between adjacent two voussoirs 7 is installed U-shaped dust excluder 11.
The medial surface of adjacent two voussoirs 7 has arc groove, and U-shaped dust excluder 11 two ends, top are extended with bending structure, and bending structure snaps in voussoir 7 tops.
In actual use procedure, due to the design of U-shaped dust excluder 11, in expanding head use procedure, foreign matter can not fall between cone 3 and voussoir 7, and cleaning is convenient, increases work efficiency.
More than describing is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range, referring to claim, within protection domain of the present utility model, can be done any type of amendment.
Claims (2)
1. an expanding head voussoir safeguard structure, it is characterized in that: comprise 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) is installed the voussoir (7) that is mated slip, outer module (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) is also installed on the outer circumference surface of described lower link bar (1), between described support ring (2) one end faces and an end face of voussoir (7), short T-shaped key (5) and guide ring (4) are installed, be positioned at the upper drip ring (9) of installing of lower link bar (1) of cone (3) one end, front end nut (10) is installed in described drip ring (9) one end, the even interval of outer circumference surface of described cone (3) is provided with 12 voussoirs (7), and the outer circumference surface of each voussoir (7) is installed outer module (8), and the gap location between adjacent two voussoirs (7) is installed U-shaped dust excluder (11).
2. expanding head voussoir safeguard structure as claimed in claim 1, is characterized in that: the medial surface of adjacent two voussoirs (7) has arc groove, 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 |
|---|---|---|---|
| CN201420260929.3U CN203862880U (en) | 2014-05-21 | 2014-05-21 | Wedge block protecting structure of diameter-expansion head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420260929.3U CN203862880U (en) | 2014-05-21 | 2014-05-21 | Wedge block protecting structure of diameter-expansion head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203862880U true CN203862880U (en) | 2014-10-08 |
Family
ID=51643870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420260929.3U Withdrawn - After Issue CN203862880U (en) | 2014-05-21 | 2014-05-21 | Wedge block protecting structure of diameter-expansion head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203862880U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990725A (en) * | 2014-05-21 | 2014-08-20 | 无锡双友石化机械有限公司 | Protective structure for expanded-diameter head wedge blocks |
| CN105215220A (en) * | 2015-11-03 | 2016-01-06 | 无锡双友石化机械有限公司 | A kind of flexible expanding head |
| CN106475478A (en) * | 2016-10-18 | 2017-03-08 | 太原重工股份有限公司 | Expanding machine and its expanding head preventer |
-
2014
- 2014-05-21 CN CN201420260929.3U patent/CN203862880U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990725A (en) * | 2014-05-21 | 2014-08-20 | 无锡双友石化机械有限公司 | Protective structure for expanded-diameter head wedge blocks |
| CN103990725B (en) * | 2014-05-21 | 2016-09-14 | 无锡双友石化机械有限公司 | Expanding head voussoir safeguard structure |
| CN105215220A (en) * | 2015-11-03 | 2016-01-06 | 无锡双友石化机械有限公司 | A kind of flexible expanding head |
| CN106475478A (en) * | 2016-10-18 | 2017-03-08 | 太原重工股份有限公司 | Expanding machine and its expanding head preventer |
| CN106475478B (en) * | 2016-10-18 | 2018-05-29 | 太原重工股份有限公司 | Expanding machine and its expanding head protective device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Hu Dai Industrial Park North District 214161 in Jiangsu province Wuxi City foreshore (Taihu Town Industrial Park) 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. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141008 Effective date of abandoning: 20160914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |