CN203711669U - Pipe expander and flaring sleeve thereof - Google Patents
Pipe expander and flaring sleeve thereof Download PDFInfo
- Publication number
- CN203711669U CN203711669U CN201420065165.2U CN201420065165U CN203711669U CN 203711669 U CN203711669 U CN 203711669U CN 201420065165 U CN201420065165 U CN 201420065165U CN 203711669 U CN203711669 U CN 203711669U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- enlarging
- tube expander
- electric tube
- pipe
- 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 - Lifetime
Links
- 230000007704 transition Effects 0.000 claims abstract description 14
- 230000004323 axial length Effects 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 15
- 239000010949 copper Substances 0.000 description 15
- 229910052802 copper Inorganic materials 0.000 description 15
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The utility model discloses a flaring sleeve of electric tube expander, including the horn mouth formed part that is located the front end and the axle sleeve that is located the rear end and is used for being connected with the electric tube expander, and the horn mouth formed part includes: a front end guide part which can extend into the pipe fitting to be flared; the small end of the conical flaring part is connected with the front end guide part, and the conical flaring part is in arc transition connection with the front end guide part; the cylindrical body is connected with the large end of the conical flaring portion in a transition mode through an arc, the radius of the cylindrical body is larger than the diameter of the large end of the conical flaring portion, and the part, extending out of the large end of the conical flaring portion, of the cylindrical body forms a plane extension portion. The flaring sleeve can ensure that a qualified bell mouth can be manufactured, and can effectively prevent the bell mouth from cracking to the straight wall part of a pipe fitting. The utility model also discloses an install telescopic electric tube expander of above-mentioned flaring.
Description
Technical field
The utility model relates to air-conditioning preparing technical field, more particularly, and the enlarging sleeve of the heat exchanger that relates to a kind of air-conditioning electric tube expander used and electric tube expander in manufacturing process.
Background technology
Heat exchanger of air condition is in the process of producing, there is enlarging operation one, so-called enlarging operation is exactly to process horn mouth in the end of air conditioner heat-exchanger brass pipe, and the horn mouth at mouth of pipe place mainly plays and holds scolder in follow-up welding sequence, the effect of avoiding scolder to run off when welding.
In enlarging operation, the equipment of main application is electric tube expander, enlarging sleeve is installed on electric tube expander the copper pipe mouth of pipe is carried out to enlarging moulding, current enlarging sleeve pipe is integral type structure, its middle part is the column connector that diameter is larger, and one end of connector is for copper pipe being carried out to the horn mouth forming part of enlarging, the other end is the axle sleeve for being connected with electric tube expander, the taper expansion mouth that horn mouth forming part generally comprises front end guidance part and joins with described front end guidance part, the large end of described taper expansion mouth is near described column connector, and the large end margin of taper expansion mouth is consistent with the diameter of described column connector.
But there is following problem in this kind of enlarging sleeve pipe, because the large end margin position of the taper expansion mouth on enlarging sleeve pipe is to design according to the copper pipe length of wanted enlarging, that is to say according to design, under ideal length, the end of copper pipe has completed horn mouth moulding while just arriving the large end margin of taper expansion mouth, thereby can produce comparatively desirable horn mouth when there is no deviation between the physical length of copper pipe and predetermined length, but in actual production process, often can cause having deviation between the length of copper pipe and ideal value due to the tolerance producing in copper pipe blanking process or because of the shrinkage factor difference of copper pipe itself, this will make copper pipe occur long or short defect.
When copper pipe than ideal value more in short-term, the large end margin of taper expansion mouth will be there will be copper pipe end to overlap to install to, thereby make that horn mouth is less even cannot form horn mouth, this just easily causes the loss of scolder in follow-up welding sequence, affects welding quality; When copper pipe is longer than ideal value, copper pipe moves continuation along enlarging sleeve, and horn mouth is ftractureed to the Zhi Bi position of copper pipe, this kind of situation equally easily cause existing in welding process rosin joint, be welded with pore even the phenomenon of solder skip produce.
Therefore, how can guarantee that pipe fitting produces qualified horn mouth in enlarging operation, can avoid again horn mouth to ftracture to the Zhi Bi position of pipe fitting is the technical problem that current those skilled in the art need solution badly.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of enlarging sleeve of electric tube expander, to can either guarantee that pipe fitting produces qualified horn mouth in enlarging operation, can avoid again horn mouth to ftracture to the Zhi Bi position of pipe fitting.
Another object of the present utility model is also to provide a kind of electric tube expander with above-mentioned enlarging sleeve.
For achieving the above object, the utility model provides following technical scheme:
An enlarging sleeve for electric tube expander, comprises the horn mouth profiled member that is positioned at front end and be positioned at the axle sleeve of rear end for being connected with electric tube expander, and described horn mouth profiled member comprises:
Can stretch into the front end guidance part for the treatment of flared pipe fitting inside;
The taper expansion mouth that small end is connected with described front end guidance part, and described taper expansion mouth is that arc transition is connected with described front end guidance part;
The column being connected by arc transition with the large end of described taper expansion mouth, and the radius of described column is greater than the diameter of the large end of described taper expansion mouth, and the position that described column stretches out the large end of described taper expansion mouth forms plane extension.
Preferably, described front end guidance part end is also provided with small end tapered guide surface forward.
Preferably, described horn mouth profiled member is provided with for the one end being connected with described axle sleeve the sleeve pipe that radius is less than described column, and on described sleeve pipe, be arranged with the elastic external member that axial length is less than described sleeve pipe, on described axle sleeve, be provided with the suit hole with described sleeve pipe adaptation, and the axial depth in described suit hole is greater than the difference of described sleeve pipe and described elastic external member axial length.
Preferably, also comprise the packing ring being arranged between described elastic external member and described axle sleeve.
Preferably, the distance between the end of described sleeve pipe and the bottom in described suit hole is 2mm-3mm.
Preferably, described elastic external member is spring.
Preferably, described elastic external member is rubber external member.
The invention also discloses a kind of electric tube expander, this electric tube expander comprises enlarging sleeve, and described enlarging sleeve is as disclosed enlarging sleeve in above-mentioned any one.
From above-mentioned technical scheme, can find out, in the enlarging sleeve of electric tube expander provided by the utility model, in horn mouth profiled member, front end is front end guidance part, what be connected by arc transition with front end guidance part is taper expansion mouth, and the small end of taper expansion mouth is connected with front end guidance part, what be connected by arc transition with the large end of taper expansion mouth is column, and the radius of column is greater than the diameter of the large end of taper expansion mouth, the position that column stretches out the large end of taper expansion mouth forms plane extension.
The large end of taper expansion mouth is connected by arc transition with plane extension, if the pipe fitting for the treatment of enlarging is for being lower tolerance between one end of contacting with enlarging sleeve and ideal value, this end is lower than ideal height, so when pipe fitting end arrives plane extension position, plane extension is further expanded the end to pipe fitting, thereby guarantee the moulding of pipe fitting end horn mouth, avoid occurring through the unflared situation in enlarging operation rear tubular member end; If the pipe fitting for the treatment of enlarging is for being upper tolerance between one end of contacting with enlarging sleeve and ideal value, this end is higher than ideal height, taper expansion mouth will guarantee bell-mouthed original state so, and plane extension will further be expanded the longer end of pipe fitting, make it produce plane turnover structure, from plane turnover structure, to pipe fitting vertical wall section, there is turning point twice, thereby the stress of pipe fitting end is not easy to postpone to pipe fitting vertical wall section, thereby avoided horn mouth to ftracture to the defect of pipe fitting vertical wall section, produce.
In the utility model in disclosed electric tube expander due to this kind of enlarging sleeve being installed, thereby this electric tube expander also has the advantage of above-mentioned enlarging sleeve concurrently, herein this no longer repeated.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The overall structure schematic diagram of the enlarging sleeve that Fig. 1 is the electric tube expander that provides in the utility model embodiment;
The explosive view of the enlarging sleeve that Fig. 2 is the electric tube expander that provides in the utility model embodiment.
Wherein,
1 is horn mouth profiled member, and 2 is elastic external member, and 3 is packing ring, and 4 is axle sleeve;
11 is tapered guide surface, and 12 is front end guidance part, and 13 is column, and 14 is sleeve pipe, and 15 is taper expansion mouth, and 16 is plane extension.
The specific embodiment
One of core of the present utility model is to provide a kind of enlarging sleeve of electric tube expander, to can either guarantee that pipe fitting produces qualified horn mouth in enlarging operation, can avoid again horn mouth to ftracture to the Zhi Bi position of pipe fitting.
Another core of the present utility model is to provide a kind of electric tube expander with above-mentioned enlarging sleeve.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, the overall structure schematic diagram of the enlarging sleeve that Fig. 1 is the electric tube expander that provides in the utility model embodiment, the explosive view of the enlarging sleeve that Fig. 2 is the electric tube expander that provides in the utility model embodiment.
The enlarging sleeve of the electric tube expander providing in the utility model embodiment comprises the horn mouth profiled member 1 that is positioned at front end and the axle sleeve 4 for being connected with electric tube expander that is positioned at rear end, one of core improvement of the present utility model is the improvement to horn mouth profiled member 1, this horn mouth profiled member 1 comprises: front end guidance part 12, taper expansion mouth 15 and column 13, please refer to Fig. 2, the effect of front end guidance part 12 is mainly that the pipe fitting for the treatment of enlarging is directed to taper expansion mouth 15, thereby the diameter of front end guidance part 12 should be less than the internal diameter for the treatment of flared pipe fitting, so that pipe fitting easily overlaps and installs on front end guidance part 12 fast, the small end of taper expansion mouth 15 is connected with front end guidance part 12, and taper expansion mouth 15 is that arc transition is connected with the connecting portion of front end guidance part 12, so that guarantee that the end of pipe fitting smoothly transits on taper expansion mouth 15, avoid pipe fitting end, at taper expansion mouth 15 and the connecting portion of front end guidance part 12, bending or stuck occurs, column 13 is connected with the large end of taper expansion mouth 15, and connecting portion passes through arc transition, the radius of column 13 is greater than the diameter of taper expansion mouth 15 large ends, so that the position that makes column 13 stretch out taper expansion mouth 15 large ends forms plane extension 16, as shown in Figure 2.
What need to describe is, the front end guidance part 12 of mentioning in above-described embodiment, taper expansion mouth 15 and column 13 all coaxially arrange, and the front end in above-described embodiment specifically refers to the one end first contacting with pipe fitting end in enlarging process, rear end is one end relative with front end.
The large end of taper expansion mouth 15 is connected by arc transition with plane extension 16, if the pipe fitting for the treatment of enlarging is for being lower tolerance between one end of contacting with enlarging sleeve and ideal value, this end is lower than ideal height, so when pipe fitting end arrives plane extension 16, plane extension 16 is further expanded the end to pipe fitting, thereby guarantee the moulding of pipe fitting end horn mouth, avoid occurring through the unflared situation in enlarging operation rear tubular member end; If the pipe fitting for the treatment of enlarging is for being upper tolerance between one end of contacting with enlarging sleeve and ideal value, this end is higher than ideal height, taper expansion mouth 15 will guarantee bell-mouthed original state so, and plane extension 16 will further be expanded the longer end of pipe fitting, make it produce plane turnover structure, from plane turnover structure, to pipe fitting vertical wall section, there is turning point twice, thereby the stress of pipe fitting end is not easy to postpone to pipe fitting vertical wall section, thereby avoided horn mouth to ftracture to the defect of pipe fitting vertical wall section, produce.
As can be seen here, the enlarging sleeve of the electric tube expander providing in the utility model embodiment can either guarantee to produce qualified horn mouth, can effectively avoid again horn mouth to ftracture to the Zhi Bi position of pipe fitting.
In order further to optimize the technical scheme in above-described embodiment, in the present embodiment, also in the end of front end guidance part 12, be provided with small end tapered guide surface 11 forward, tapered guide surface 11 the accuracy of being inserted in front end guidance part 12 by further improving pipe fitting is set.
Well known to those skilled in the art, in heat exchanger of air condition heat exchanger tube enlarging operation, first need by pipe fitting is carried out to expand tube operation, its objective is the aluminium flake of heat exchanger and copper pipe swelling, and then the bell-mouthed preparation of further having exerted pressure.The enlarging sleeve of current applied electric tube expander is the rigidity enlarging sleeve of integral type, and this sleeve cannot cushion pressure, thus by the expand tube stage during to the transition of horn mouth preparatory phase instantaneous pressure change excessively, this easily causes breaking of pipe fitting.
The enlarging sleeve for this reason providing in the present embodiment is split type, as shown in Figure 2, concrete, horn mouth profiled member 1 is split type with axle sleeve 4, and horn mouth profiled member 1 is provided with for the one end being connected with axle sleeve 4 sleeve pipe 14 that radius is less than column 13, so that form the structure that is similar to the shaft shoulder between sleeve pipe 14 and column 13, and on sleeve pipe 14, be arranged with the elastic external member 2 that axial length is less than sleeve pipe 14, on axle sleeve 4, be provided with the suit hole with sleeve pipe 14 adaptations, and the axial depth in suit hole is greater than the difference of sleeve pipe 14 and elastic external member 2 axial lengths.
Because sleeve pipe 14 and the difference of elastic external member 2 axial lengths are after the end of elastic external member 2 props up column 13, sleeve pipe 14 exposes the length of elastic external member 2, exposing sleeve pipe 14 parts of elastic external member 2 can overlap in the suit hole installing on axle sleeve 4, owing to being set with the degree of depth in hole, be greater than the length that sleeve pipe 14 exposes elastic external member 2, therefore the end of sleeve pipe 14 can't contact with the bottom in suit hole, but can there is gap, this gap is just that horn mouth profiled member 1 is with respect to the buffer gap of axle sleeve 4.
Concrete, by the expand tube stage during to the transition of horn mouth preparatory phase, larger pressure changed and will make elastic external member 2 compressions moment, and now horn mouth profiled member 1 will move to axle sleeve 4, this can effectively cushion larger pressure variation of moment, thereby has effectively avoided the cracking of pipe fitting.
Hold and be intelligiblely, the end of sleeve pipe 14 is excessive with the distance of bottom, suit hole, easily produce between horn mouth profiled member 1 and axle sleeve 4 and be connected stable not problem, and sleeve pipe 14 ends are too small with the spacing of bottom, suit hole, easily cause again carrying out the effectively problem of buffering to the pressure of instantaneous variation, in the present embodiment, the distance between sleeve pipe 14 ends and suit hole bottom is set to 2mm-3mm for this reason, so as guarantee horn mouth profiled member 1 is firmly connected with axle sleeve 4 in effective pressure that cushions instantaneous variation.
Generally, elastic external member 2 can be selected spring or rubber external member, and certainly, in order to guarantee that service life is more permanent, those skilled in the art can also adopt other more durable materials to prepare elastic external member.
For elastic component is protected, can also between elastic external member 2 and axle sleeve 4, be provided with packing ring 3, as shown in Figures 1 and 2.
In the electric tube expander providing in the utility model, enlarging sleeve is installed, and the enlarging sleeve in this electric tube expander is the enlarging sleeve of disclosed electric tube expander in above-mentioned any embodiment.
Due to above-mentioned enlarging sleeve pipe being installed in this electric tube expander, thereby this electric tube expander has all advantages of above-mentioned enlarging sleeve pipe concurrently, in present specification, this no longer repeated.
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. an enlarging sleeve for electric tube expander, comprises the horn mouth profiled member (1) that is positioned at front end and is positioned at the axle sleeve (4) of rear end for being connected with electric tube expander, and it is characterized in that, described horn mouth profiled member (1) comprising:
Can stretch into the front end guidance part (12) for the treatment of flared pipe fitting inside;
The taper expansion mouth (15) that small end is connected with described front end guidance part (12), and described taper expansion mouth (15) and described front end guidance part (12) are connected for arc transition;
The column (13) being connected by arc transition with the large end of described taper expansion mouth (15), and the radius of described column (13) is greater than the diameter of the large end of described taper expansion mouth (15), the position that described column (13) stretches out the large end of described taper expansion mouth (15) forms plane extension (16).
2. the enlarging sleeve of electric tube expander as claimed in claim 1, is characterized in that, described front end guidance part (12) end is also provided with small end tapered guide surface (11) forward.
3. the enlarging sleeve of electric tube expander as claimed in claim 1, it is characterized in that, described horn mouth profiled member (1) is provided with for the one end being connected with described axle sleeve (4) sleeve pipe (14) that radius is less than described column (13), and on described sleeve pipe (14), be arranged with the elastic external member (2) that axial length is less than described sleeve pipe (14), on described axle sleeve (4), be provided with the suit hole adaptive with described sleeve pipe (14), and the axial depth in described suit hole is greater than the difference of described sleeve pipe (14) and described elastic external member (2) axial length.
4. the enlarging sleeve of electric tube expander as claimed in claim 3, is characterized in that, also comprises the packing ring (3) being arranged between described elastic external member (2) and described axle sleeve (4).
5. the enlarging sleeve of electric tube expander as claimed in claim 4, is characterized in that, the distance between the end of described sleeve pipe (14) and the bottom in described suit hole is 2mm-3mm.
6. the enlarging sleeve of electric tube expander as claimed in claim 3, is characterized in that, described elastic external member (2) is spring.
7. the enlarging sleeve of electric tube expander as claimed in claim 3, is characterized in that, described elastic external member (2) is rubber external member.
8. an electric tube expander, comprises enlarging sleeve, it is characterized in that, described enlarging sleeve is the enlarging sleeve of the electric tube expander as described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065165.2U CN203711669U (en) | 2014-02-13 | 2014-02-13 | Pipe expander and flaring sleeve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065165.2U CN203711669U (en) | 2014-02-13 | 2014-02-13 | Pipe expander and flaring sleeve thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711669U true CN203711669U (en) | 2014-07-16 |
Family
ID=51150869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420065165.2U Expired - Lifetime CN203711669U (en) | 2014-02-13 | 2014-02-13 | Pipe expander and flaring sleeve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711669U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741466A (en) * | 2015-04-07 | 2015-07-01 | 江苏仓环铜业股份有限公司 | Processing equipment for horn mouth of metal tube |
| CN104841786A (en) * | 2014-02-13 | 2015-08-19 | 珠海格力电器股份有限公司 | Pipe expander and flaring sleeve thereof |
| CN106270229A (en) * | 2015-05-15 | 2017-01-04 | 天津市久盛通达科技有限公司 | Spigot-and-socket steel pipe rolling pipe-expanding machine |
-
2014
- 2014-02-13 CN CN201420065165.2U patent/CN203711669U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104841786A (en) * | 2014-02-13 | 2015-08-19 | 珠海格力电器股份有限公司 | Pipe expander and flaring sleeve thereof |
| CN104741466A (en) * | 2015-04-07 | 2015-07-01 | 江苏仓环铜业股份有限公司 | Processing equipment for horn mouth of metal tube |
| CN106270229A (en) * | 2015-05-15 | 2017-01-04 | 天津市久盛通达科技有限公司 | Spigot-and-socket steel pipe rolling pipe-expanding machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |