CN203253832U - Tube expanding device - Google Patents
Tube expanding device Download PDFInfo
- Publication number
- CN203253832U CN203253832U CN 201320162232 CN201320162232U CN203253832U CN 203253832 U CN203253832 U CN 203253832U CN 201320162232 CN201320162232 CN 201320162232 CN 201320162232 U CN201320162232 U CN 201320162232U CN 203253832 U CN203253832 U CN 203253832U
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- China
- Prior art keywords
- expanding
- buffer
- head
- tube
- swollen head
- 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
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- 229910001080 W alloy Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 230000003116 impacting effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a tube expanding device which structurally comprises an expanding rod and an expanding head. The expanding head is of an elliptical cone shape, a conical tip is arranged on the top of the expanding head, the diameter of the expanding head increases gradually from the top portion to the middle portion and decreases gradually from the middle portion to the bottom portion, the outer surface of the expanding head is integrally formed, and a screw rod is arranged on the bottom of the expanding head. A threaded hole is formed in the top of the expanding rod, a buffer is further arranged on the expanding rod, an elastic element is arranged in the buffer, a limiting groove is further formed in the buffer, and a limiting pin is arranged in the limiting groove. The tube expanding device can overcome the defects in the prior art, the expanding head is designed to be of the elliptical cone shape, the outer surface of the expanding head is designed to be integrally formed, and thus a joint gap is removed. The buffer is arranged on the expanding rod, impacting force in tube expanding process is reduced, the yield of tube expanding is effectively improved, and the practicability is high.
Description
Technical field
The utility model relates to a kind of radiator mfg. device, especially a kind of tube expander.
Background technology
In the operation that radiator is made, it is a very important step that the pipeline in the fin is carried out expand tube.The effect of this operation is with the external diameter expansion of pipeline, and pipeline is closely connected with the radiating fin of being connected, and improves radiating efficiency.In the common tube expander, swollen head has several parts to combine, and exists in conjunction with the slit at binding site, easily inner-walls of duct is produced to scratch in the expand tube process.Because the expand tube dynamics of tube expander is larger, when swollen head had just contacted with pipeline, larger impulsive force made pipe deforming easily.
The utility model content
The technical problems to be solved in the utility model provides a kind of tube expander, can solve the deficiencies in the prior art, and it is tapered to be designed to the integrated ellipse of outer surface by the head that will expand, and has eliminated the bonding crack crack; At expander roll buffer is set, the impulsive force when reducing expand tube effectively raises the yield of expand tube, and practicality is high.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A kind of tube expander comprises expander roll and swollen head in the structure, described swollen head is oval tapered, and swollen crown section is the cone point, and the diameter of swollen head increases from the top to the middle part gradually, and section reduces gradually on earth from the middle part, and the outer surface of swollen head is one-body molded, and swollen head bottom is provided with screw rod; Described expander roll top is provided with screwed hole, also is provided with buffer on the expander roll, is provided with flexible member in the buffer, also is provided with stopper slot in the buffer, is provided with spacer pin in the stopper slot.
As preferably, described swollen head adopts the tungsten alloy agglomerated material.
As preferably, described flexible member adopts spring.
The beneficial effect that adopts technique scheme to bring is: it is tapered that the swollen head in the utility model is designed to the integrated ellipse of outer surface, eliminated the bonding crack crack, avoided the inner-walls of duct head that expanded when expand tube to scratch.Swollen head adopts with expander roll and is threaded, and can change according to different pipelines the swollen head of different model.Swollen head adopts the tungsten alloy agglomerated material, has the characteristics such as high temperature resistant, wear-resisting, long service life.Be provided with buffer on the expander roll, the impulsive force when having reduced expand tube is provided with stopper slot and spacer pin in the buffer, guarantees not excessively deformation of flexible member, has both protected flexible member, has guaranteed again the expand tube dynamics of some strength.
Description of drawings
Fig. 1 is the schematic diagram of a specific embodiment of the utility model.
Fig. 2 is the schematic diagram of buffer in specific embodiment of the utility model.
The specific embodiment
With reference to Fig. 1-2, comprise expander roll 1 and swollen 2 in the structure of the present utility model, described swollen 2 be that ellipse is tapered, swollen 2 top increase from the top to the middle part gradually for cone point, swollen 2 diameter, and section reduces gradually on earth from the middle part, swollen 2 outer surface is one-body molded, and swollen 2 bottom are provided with screw rod 3; Described expander roll 1 top is provided with screwed hole 4, also is provided with buffer 5 on the expander roll 1, is provided with flexible member 6 in the buffer 5, also is provided with stopper slot 7 in the buffer 5, is provided with spacer pin 8 in the stopper slot 7.
It should be noted that described swollen 2 is adopted the tungsten alloy agglomerated material.
In addition, described flexible member 6 adopts spring.
Operation principle of the present utility model is: it is tapered that in the utility model swollen 2 is designed to the integrated ellipse of outer surface, eliminated the bonding crack crack, avoided inner-walls of duct to be expanded when expand tube and 2 scratched.Adopt with expander roll 1 for swollen 2 to be threaded, can expand 2 according to what different pipelines was changed different model.Adopt the tungsten alloy agglomerated material, have the characteristics such as high temperature resistant, wear-resisting, long service life for swollen 2.Be provided with buffer 5 on the expander roll 1, the impulsive force when having reduced expand tube is provided with stopper slot 7 and spacer pin 8 in the buffer 5, guarantees not excessively deformation of flexible member 6, has both protected flexible member 6, has guaranteed again the expand tube dynamics of some strength.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. tube expander, comprise expander roll (1) and swollen head (2) in the structure, it is characterized in that: described swollen head (2) is for oval tapered, swollen head (2) top is the cone point, the diameter of swollen head (2) increases from the top to the middle part gradually, section reduces gradually on earth from the middle part, and the outer surface of swollen head (2) is one-body molded, and swollen head (2) bottom is provided with screw rod (3); Described expander roll (1) top is provided with screwed hole (4), also be provided with buffer (5) on the expander roll (1), be provided with flexible member (6) in the buffer (5), also be provided with stopper slot (7) in the buffer (5), be provided with spacer pin (8) in the stopper slot (7).
2. tube expander according to claim 1 is characterized in that: described swollen head (2) employing tungsten alloy agglomerated material.
3. tube expander according to claim 1 is characterized in that: described flexible member (6) employing spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320162232 CN203253832U (en) | 2013-04-03 | 2013-04-03 | Tube expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320162232 CN203253832U (en) | 2013-04-03 | 2013-04-03 | Tube expanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203253832U true CN203253832U (en) | 2013-10-30 |
Family
ID=49466441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320162232 Expired - Fee Related CN203253832U (en) | 2013-04-03 | 2013-04-03 | Tube expanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203253832U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108772493A (en) * | 2018-06-19 | 2018-11-09 | 格力电器（芜湖）有限公司 | Expansion head structure, expansion head unit and pipe expander |
-
2013
- 2013-04-03 CN CN 201320162232 patent/CN203253832U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108772493A (en) * | 2018-06-19 | 2018-11-09 | 格力电器（芜湖）有限公司 | Expansion head structure, expansion head unit and pipe expander |
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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: 20131030 Termination date: 20180403 |