CN206316261U - The pneumatic mouth expander of finned heat exchanger - Google Patents
The pneumatic mouth expander of finned heat exchanger Download PDFInfo
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- CN206316261U CN206316261U CN201621396392.9U CN201621396392U CN206316261U CN 206316261 U CN206316261 U CN 206316261U CN 201621396392 U CN201621396392 U CN 201621396392U CN 206316261 U CN206316261 U CN 206316261U
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- flared section
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Abstract
The utility model is related to technical field of heat exchangers, and in particular to a kind of pneumatic mouth expander of finned heat exchanger.The mouth expander includes flaring head and pneumatic chipping hammer, flaring head is connected to pneumatic chipping hammer front end, flaring head includes connecting rod, head, head is connected to the front end of connecting rod, head includes flared section, probes into section, section is probeed into positioned at flared section front end, flared section includes secondary flared section, turns over bowl section for three times, and secondary flared section turns over bowl section front end positioned at three times.The utility model is with low cost, compared with more than low 40 times of the mouth expander price than import；It is simple in construction, easy to make, by figure process, only need 3 days；Small volume, lightweight, manual operations simplicity, it is high in machining efficiency；It is hardly damaged, it is durable in use.
Description
Technical field
The utility model is related to technical field of heat exchangers, and in particular to a kind of pneumatic mouth expander of finned heat exchanger.
Background technology
Finned heat exchanger in refrigerating field, its main body is made up of aluminum fin and copper U-tube.By aluminum fin by
U-tube is connected in series, by pipe expanding equipment, by the expansion of U-tube by U-tube, fin is swollen dead fixation.Three steps of tube expansion point：One
Secondary swollen, secondary enlarging, turn over bowl three times.
Conventional tube expansion was typically purchase mouth expander of the import with needle-type, is clipped in rotation on electric drill and uses, the method due to
Import mouth expander price, and purchase takes more than three months, the cycle is long, improper use or collides with and will damage；Another method
It is outwards to be strutted inside pipe with fluid pressure type mouth expander, the operation equipment volume that the method is used is big, is connected to hydraulic tube very heavy
Inconvenience, inefficiency, and secondary enlarging is can be only done, it can not but complete three times and turn over bowl, not reach processing request, practicality
It is low.
Utility model content
To solve the above-mentioned technical problem that existing flared method is present, it is used for finned change the utility model proposes one kind
The hot secondary enlarging of device and the pneumatic mouth expander for turning over bowl process for three times.
To achieve the above object, the technical solution adopted in the utility model is：The pneumatic mouth expander of finned heat exchanger, it is special
Levy and be：Including flaring head and pneumatic chipping hammer, flaring head is connected to pneumatic chipping hammer front end, and flaring head includes connecting rod, head, and head is connected to
The front end of connecting rod, head includes flared section, probes into section, probes into section positioned at flared section front end, flared section include secondary flared section,
Turn over bowl section for three times, secondary flared section turns over bowl section front end positioned at three times.
The front end for probeing into section is sphere, and the corresponding circular diameter of sphere is the diameter for probeing into section, probes into a diameter of of section
11.5-12.3mm。
The front end connection of the secondary flared section probes into the rear end of section, secondary flared section with diameter greater than probeing into the straight of section
Footpath, a diameter of 12.8-13.0mm of secondary flared section, secondary flared section with probe into the junction of section exist it is domatic, this it is domatic with
Angle α between the axis of flaring head is 28-32 degree.
Turn over the rear end of the front end connecting secondary flared section of bowl section for described three times, turn over for three times bowl section with diameter greater than secondary enlarging
The diameter of section, turns over a diameter of 15.8-16.5mm of bowl section for three times, turns over bowl section three times and the junction of secondary flared section has slope
Face, the domatic angle β between the axis of flaring head is 28-32 degree.
The utility model is with low cost, compared with more than low 40 times of the mouth expander price than import；It is simple in construction, easy to make, press
Figure processing, is only needed 3 days；Small volume, lightweight, manual operations simplicity, it is high in machining efficiency；It is hardly damaged, it is durable in use.
Brief description of the drawings
Fig. 1 is the structural representation of the pneumatic mouth expander of the utility model finned heat exchanger.
Fig. 2 is the flaring head structural representation of the pneumatic mouth expander of the utility model finned heat exchanger.
Fig. 3 is the tube head shape graph before the pneumatic mouth expander application of the utility model finned heat exchanger.
Fig. 4 is the tube head shape graph after the pneumatic mouth expander application of the utility model finned heat exchanger.
Fig. 5 is the heat exchanger structure schematic diagram after three tube expansions.
In figure：1- flaring heads, 2- pneumatic chipping hammers, 3- connecting rods, 4- heads, 5- flared sections, 6- probes into section, bis- flared sections of 7-,
8- turns over bowl section, α-secondary flared section and the domatic angle between the axis of flaring head in junction for probeing into section, β-three for tri- times
The secondary domatic angle between the axis of flaring head in junction for turning over bowl section and secondary flared section.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings, but the utility model is not limited to specific embodiment.
Embodiment 1
As shown in figure 1, the pneumatic mouth expander of finned heat exchanger, including flaring head 1 and pneumatic chipping hammer 2, flaring head 1 is connected to pneumatic chipping hammer
2 front ends, as shown in Fig. 2 flaring head 1 includes connecting rod 3, head 4, head 4 is connected to the front end of connecting rod 3, and head 4 includes expanding
Mouthful section 5, section 6 is probeed into, probe into section 6 positioned at the front end of flared section 5, the front end for probeing into section 6 is sphere, the corresponding circular diameter of sphere is visits
Enter the diameter of section 6, probe into a diameter of 12mm of section 6, flared section 5 includes secondary flared section 7, turns over bowl section 8, secondary flared section for three times
7 turn over 8 front ends of bowl section positioned at three times, and the front end connection of secondary flared section 7 probes into the rear end of section 6, secondary flared section 7 with diameter greater than
Probe into the diameter of section 6, a diameter of 12.9mm of secondary flared section 7, secondary flared section 7 with probe into the junction of section 6 exist it is domatic,
The domatic angle α between the axis of flaring head 1 is 30 degree, after the front end connecting secondary flared section 7 for turning over bowl section 8 for three times
End, turns over the diameter with diameter greater than secondary flared section 7 of bowl section 8 for three times, a diameter of 15.9mm for turning over bowl section 8 three times, turns over bowl three times
Section 8 exists domatic with the junction of secondary flared section 7, and the domatic angle β between the axis of flaring head 1 is 30 degree.
When the utility model is used for two or three enlargings of finned heat exchanger tube head, flaring head 1 is arranged on pneumatic chipping hammer 2, hand
Pneumatic chipping hammer 2 is held, makes probeing into foremost in the insertion copper pipe tube head of section 6 for flaring head 1, then starts pneumatic chipping hammer 2, adjust the gear of pneumatic chipping hammer,
Most suitable dynamics is found, is pushed ahead by the impulsive force of pneumatic chipping hammer 2, so as to complete the secondary enlarging of tube head and three times are turned over a bowl mistake
Journey.
Embodiment 2
The Each part of the pneumatic mouth expander of finned heat exchanger described in the present embodiment and annexation with implementation
Identical in example 1, different technical parameters are：
1）Probe into a diameter of 11.5mm of section 6；
2）A diameter of 12.8mm of secondary flared section 7；
3）Angle α is 28 degree；
4）Turn over a diameter of 15.8mm of bowl section 8 for three times；
5）Angle β is 28 degree.
Embodiment 3
The Each part of the pneumatic mouth expander of finned heat exchanger described in the present embodiment and annexation with implementation
Identical in example 1, different technical parameters are：
1）Probe into a diameter of 12.3mm of section 6；
2）A diameter of 13.0mm of secondary flared section 7；
3）Angle α is 32 degree；
4）Turn over a diameter of 16.5mm of bowl section 8 for three times；
5）Angle β is 32 degree.
Claims (4)
1. the pneumatic mouth expander of finned heat exchanger, it is characterised in that：Including flaring head（1）With pneumatic chipping hammer（2）, flaring head（1）Connection
In pneumatic chipping hammer（2）Front end, flaring head（1）Including connecting rod（3）, head（4）, head（4）It is connected to connecting rod（3）Front end, head
Portion（4）Including flared section（5）, probe into section（6）, probe into section（6）Positioned at flared section（5）Front end, flared section（5）Including secondary enlarging
Section（7）, turn over bowl section for three times（8）, secondary flared section（7）Bowl section is turned over positioned at three times（8）Front end.
2. the pneumatic mouth expander of finned heat exchanger according to claim 1, it is characterised in that：It is described to probe into section（6）Before
Hold as sphere, the corresponding circular diameter of sphere is probes into section（6）Diameter, probe into section（6）A diameter of 11.5-12.3mm.
3. the pneumatic mouth expander of finned heat exchanger according to claim 1, it is characterised in that：The secondary flared section（7）
Front end connection probe into section（6）Rear end, secondary flared section（7）With diameter greater than probeing into section（6）Diameter, secondary flared section
（7）A diameter of 12.8-13.0mm, secondary flared section（7）With probeing into section（6）Junction there is domatic, the domatic and enlarging
Head（1）Axis between angle（α）For 28-32 degree.
4. the pneumatic mouth expander of finned heat exchanger according to claim 1, it is characterised in that：Turn over bowl section for described three times（8）
Front end connecting secondary flared section（7）Rear end, turn over bowl section for three times（8）With diameter greater than secondary flared section（7）Diameter, three times
Turn over bowl section（8）A diameter of 15.8-16.5mm, turn over bowl section for three times（8）With secondary flared section（7）Junction exist it is domatic, should
Domatic and flaring head（1）Axis between angle（β）For 28-32 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621396392.9U CN206316261U (en) | 2016-12-19 | 2016-12-19 | The pneumatic mouth expander of finned heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621396392.9U CN206316261U (en) | 2016-12-19 | 2016-12-19 | The pneumatic mouth expander of finned heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206316261U true CN206316261U (en) | 2017-07-11 |
Family
ID=59268134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621396392.9U Active CN206316261U (en) | 2016-12-19 | 2016-12-19 | The pneumatic mouth expander of finned heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206316261U (en) |
-
2016
- 2016-12-19 CN CN201621396392.9U patent/CN206316261U/en active Active
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