CN203764809U - Expansion rod in heat exchanging tube expanded connection device - Google Patents
Expansion rod in heat exchanging tube expanded connection device Download PDFInfo
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- CN203764809U CN203764809U CN201420177468.3U CN201420177468U CN203764809U CN 203764809 U CN203764809 U CN 203764809U CN 201420177468 U CN201420177468 U CN 201420177468U CN 203764809 U CN203764809 U CN 203764809U
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- rod
- heat
- heat exchanging
- exchange tube
- exchanging tube
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Abstract
The utility model provides an expansion rod in a heat exchanging tube expanded connection device, and belongs to the technical field of machines. The expansion rod solves the technical problems that when a high-pressure gas tube plate expanded connection mode is adopted in an existing heat exchanging tube expanded connection device for expanded connection, contact is instable, and the heat exchanging efficiency is low. The expansion rod in the heat exchanging tube expanded connection device comprises a rod body for being inserted into a heat exchanging tube, an expansion head is detachably arranged at one end of the rod body, the other end of the rod body is the installation end, the installation end is provided with outer threads, the cross section of the expansion head is in a circular truncated cone shape, the outer diameter of the end, close to the rod body, of the expansion head is smaller than the outer diameter of the end, far away from the rod body, of the expansion head and smaller than the inner diameter of the heat exchanging tube, and the outer diameter of the end, far away from the rod body, of the expansion head is larger than the inner diameter of the heat exchanging tube. The expansion rod has the advantages that the expansion head is detachable, the university is good, the heat exchanging tube is in stable contact with a cooling fin, and the heat exchanging efficiency is improved.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of expander roll, particularly the expander roll in a kind of heat-exchange tube expanded-connecting apparatus.
Background technology
The mode that solar water heater utilization is converted into heat energy by solar energy is heated to high-temperature by water from low temperature, weigh the efficiency that index is its heat exchanger of reusing of solar water heater quality, heat exchanger is comprised of heat-exchange tube and fin, thereby good contact is conducive to improve the operating efficiency of heat exchanger between heat-exchange tube and fin, thereby promote the quality of solar water heater.
According to the disclosed a kind of high-pressure gas tube sheet expanding joint method and apparatus [patent No.: ZL201010522634.5 of Chinese patent literature; Granted publication number: CN102059296A] known, a kind of high-pressure gas tube sheet expanding joint device: be provided with Pressure gauge on the connecting line between compressor and valve, valve, air inlet pipe, seal nipple and copper heat exchanger tube are connected successively; Copper heat exchanger tube is connected to form by the copper heat exchanger tube of U-shaped and straight copper heat exchanger tube; The copper heat exchanger tube of each U-shaped and straight copper heat exchanger tube are connected to form a loop; On straight copper heat exchanger tube, a plurality of aluminous fins of string cover, form aluminum alloy fin group, and aluminous fin keeps vertical with straight copper heat exchanger tube.In the disclosed device of this patent, be to utilize the mode of gases at high pressure to carry out expanded joint, therefore, in this device, do not have expander roll, and the mode of high-pressure gas tube sheet expanding joint is very easily because the poor sealing of device, cause pressure transient, make heat-exchange tube contact the unstable disengaging that even causes both with fin, thereby reduce the operating efficiency of heat exchanger.
Utility model content
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed the expander roll in a kind of heat-exchange tube expanded-connecting apparatus, and this expander roll has assembly expanded joint effect in heat-exchange tube expanded-connecting apparatus, the feature that versatility is good improved.
The purpose of this utility model can realize by following technical proposal: the expander roll in a kind of heat-exchange tube expanded-connecting apparatus, comprise for penetrating into the body of rod in heat-exchange tube, it is characterized in that, detachably there is swollen head described body of rod one end, the body of rod other end is installation end, on installation end, offer external screw thread, the cross section of described swollen head is round table-like, the external diameter of one end of the nearly body of rod of described swollen head rest is less than swollen head away from the external diameter of one end of the body of rod, the external diameter of one end of the nearly body of rod of swollen head rest is less than the internal diameter of heat-exchange tube, swollen head is greater than the internal diameter of heat-exchange tube away from the external diameter of one end of the body of rod.
Heat-exchange tube expanded-connecting apparatus also comprises heat-exchange tube, fin, workbench, and be arranged on the positioning tube on workbench, be positioned at the location-plate of positioning tube one end, be arranged on the travel mechanism on workbench, particularly, travel mechanism comprises motor, screw mandrel, nut, bearing one and connecting plate, wherein motor is fixed on above-mentioned workbench, the two ends of screw mandrel are all fixed on workbench by the mode of axial restraint and circumferentially rotation, the output shaft of motor is connected with screw mandrel by drive mechanism, nut thread is connected on screw mandrel, bearing one is set in outside nut, and bearing one inner ring and nut fix, connecting plate is fixed on bearing one place, outer ring, above-mentioned expander roll is fixed on connecting plate.
First the heat-exchange tube assembling and fin are put in positioning tube, utilize one end of location-plate to position the heat-exchange tube assembling and fin, the heat-exchange tube that rotating group installs afterwards aligns the through hole on heat-exchange tube and location-plate with fin, the installation end of expander roll is passed to heat-exchange tube successively, location-plate, one end of workbench and connecting plate, and utilize external screw thread and nut on expander roll installation end that expander roll is fixed on connecting plate, connect after the power supply of motor, the output shaft of motor drives screw mandrel forward together, leading screw is fixed on bearing on nut one by nut and inner ring and drives together with the connecting plate fixing with bearing one outer ring and move to the one end away from location-plate, thereby drive expander roll to move to the one end near location-plate, now the swollen head of expander roll is along with the movement of expander roll progresses in heat-exchange tube, heat-exchange tube is compressed axially, heat-exchange tube is expanded, with fin phase expanded joint, thereby the heat-exchange tube expansion assembling is fully contacted with fin.
On the end face of described swollen head, be fixed with a locating dowel, described locating dowel has external screw thread, offers the female locating hole of tool on described body of rod end face, and described locating dowel is threaded in locating hole.
Swollen head can be connected to by the external screw thread in locating dowel in the female locating hole of body of rod tool, thereby expander roll is assembled.
Described swollen head and the body of rod all adopt stainless steel material to make.
Compared with prior art, the expander roll in this heat-exchange tube expanded-connecting apparatus has the following advantages:
1, by expander roll, heat-exchange tube and fin are carried out to expanded joint, make heat-exchange tube effective with contacting of fin, rate of heat exchange is high, simultaneously simple in structure again, convenient and practical.
2, by swollen head, be set to round table-likely, the external diameter of the nearly body of rod of swollen head rest one end is less than swollen head away from the external diameter of body of rod one end; The external diameter of the nearly body of rod of swollen head rest one end is arranged to be less than to the internal diameter of heat-exchange tube, swollen head is greater than the internal diameter of heat-exchange tube away from the external diameter of body of rod one end, make swollen head when being subject to the body of rod to the pulling force of motor drive direction can some enter in heat-exchange tube and another part outside heat-exchange tube, now swollen head compressing heat-exchange tube is blocked the opening of heat-exchange tube, again because swollen head is that round table-like its cross section is for circular, be conducive to coordinate with the circular cross-section of heat-exchange tube, in both contacts, guarantee good seal, effectively improve the operating efficiency of heat exchanger.
3, by fixing one on the end face at swollen head, there is external screw thread locating dowel; On the end face of the body of rod, offer the female locating hole of tool, afterwards locating dowel is threaded in locating hole, this mode being threaded has guaranteed firmness and the stability that swollen head is connected with the body of rod, simultaneously because the mode being threaded is detachable, be convenient to swollen head or the body of rod to change, and can in the swollen head of different size, select the swollen head matching for the diameter of the heat-exchange tube of concrete use, greatly improve the versatility of expander roll.
4, by swollen head and the body of rod, be set to stainless steel material, sturdy and durable, simultaneously also can effectively anti-oxidation, the problem such as get rusty, thus again because stainless steel material easily obtains, reduced manufacturing cost the service life of improving expander roll.
Accompanying drawing explanation
Fig. 1 is cutaway view of the present utility model.
Fig. 2 is the perspective view of heat-exchange tube expanded-connecting apparatus in the present embodiment.
In figure, 1, the body of rod; 1a, installation end; 1b, locating hole; 2, swollen head; 2a, locating dowel; 3, heat-exchange tube; 4, fin; 5, workbench; 6, positioning tube; 7, location-plate; 8, motor; 9, screw mandrel; 10, nut; 11, bearing one; 12, connecting plate.
The specific embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As depicted in figs. 1 and 2: the expander roll in a kind of heat-exchange tube expanded-connecting apparatus, comprise for penetrating into the body of rod 1 in heat-exchange tube, the body of rod 1 one end detachably has swollen 2, the body of rod 1 other end is installation end 1a, on installation end 1a, offer external screw thread, the cross section of swollen 2 is round table-like, swollen 2 external diameter near one end of the body of rod 1 is less than swollen 2 away from the external diameter of one end of the body of rod 1, swollen 2 external diameter near one end of the body of rod 1 is less than the internal diameter of heat-exchange tube, swollen 2 external diameter away from one end of the body of rod 1 is greater than the internal diameter of heat-exchange tube, on swollen 2 end face near the body of rod 1 one end, be fixed with a locating dowel 2a, locating dowel 2a has external screw thread, on the body of rod 1 end face, offer the female locating hole 1b of tool, locating dowel 2a can be threaded in locating hole 1b, wherein swollen 2 and the body of rod 1 all adopt stainless steel material to make.Heat-exchange tube expanded-connecting apparatus also comprises heat-exchange tube 3, fin 4, workbench 5, and be arranged on the positioning tube 6 on workbench 5, be positioned at the location-plate 7 of positioning tube 6 one end and be arranged on the travel mechanism on workbench 5, particularly, travel mechanism comprises motor 8, screw mandrel 9, nut 10, bearing 1 and connecting plate 12, wherein motor 8 is fixed on above-mentioned workbench 5, the two ends of screw mandrel 9 are all fixed on workbench 5 by the mode of axial restraint and circumferentially rotation, the output shaft of motor 8 is connected with screw mandrel 9 by drive mechanism, nut 10 is threaded on screw mandrel 9, bearing 1 is set in outside nut 10, and bearing one 11 inner rings and nut 10 fix, connecting plate 12 is fixed on bearing one 11 places, outer ring, expander roll is fixed on connecting plate 12.
Operation principle of the present utility model is: first by being fixed on swollen external screw thread on 2 end face locating dowel 2a and the internal thread on the body of rod 1 locating hole 1b hole wall, swollen 2 and the body of rod 1 are threaded, thereby expander roll is assembled complete, afterwards the heat-exchange tube assembling 3 and fin 4 are put in positioning tube 6, utilize one end of location-plate 7 to position with fin 4 heat-exchange tube 3 assembling, the heat-exchange tube 3 that rotating group installs aligns the through hole on heat-exchange tube 3 and location-plate 7 with fin 4, the installation end 1a of expander roll is passed to heat-exchange tube 3 successively, location-plate 7, one end of workbench 5 and connecting plate 12, and utilize external screw thread and nut on expander roll installation end 1a that expander roll is fixed on connecting plate 12, connect after the power supply of motor 8, the output shaft of motor 8 drives screw mandrel 9 forward together, leading screw 9 is fixed on bearing on nut 10 1 by nut 10 and inner ring and drives together with the connecting plate 12 fixing with bearing one 11 outer rings to moving away from one end of location-plate 7, thereby drive expander roll to move to the one end near location-plate 7, now swollen 2 of the expander roll movement along with expander roll progresses in heat-exchange tube 3, heat-exchange tube 3 is compressed axially, heat-exchange tube 3 is expanded, with fin 4 phase expanded joints, thereby heat-exchange tube 3 expansions that assemble are fully contacted with fin 4.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used the terms such as the body of rod 1, installation end 11, locating hole 12, swollen 2, locating dowel 21, heat-exchange tube 3, fin 4, positioning tube 5, location-plate 6, workbench 7, connecting plate 8, motor 9, screw mandrel 10 herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (3)
1. the expander roll in a heat-exchange tube expanded-connecting apparatus, comprise for penetrating into the body of rod (1) in heat-exchange tube, it is characterized in that, detachably there is swollen head (2) the described body of rod (1) one end, the body of rod (1) other end is installation end (1a), on installation end (1a), offer external screw thread, the cross section of described swollen head (2) is round table-like, described swollen head (2) is less than swollen head (2) away from the external diameter of one end of the body of rod (1) near the external diameter of one end of the body of rod (1), swollen head (2) is less than the internal diameter of heat-exchange tube near the external diameter of one end of the body of rod (1), swollen head (2) is greater than the internal diameter of heat-exchange tube away from the external diameter of one end of the body of rod (1).
2. the expander roll in heat-exchange tube expanded-connecting apparatus according to claim 1, it is characterized in that, on the end face of described swollen head (2), be fixed with a locating dowel (2a), described locating dowel (2a) has external screw thread, on the described body of rod (1) end face, offer the female locating hole of tool (1b), described locating dowel (2a) is threaded in locating hole (1b).
3. the expander roll in heat-exchange tube expanded-connecting apparatus according to claim 1 and 2, is characterized in that, described swollen head (2) and the body of rod (1) all adopt stainless steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420177468.3U CN203764809U (en) | 2014-04-14 | 2014-04-14 | Expansion rod in heat exchanging tube expanded connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420177468.3U CN203764809U (en) | 2014-04-14 | 2014-04-14 | Expansion rod in heat exchanging tube expanded connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203764809U true CN203764809U (en) | 2014-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420177468.3U Expired - Fee Related CN203764809U (en) | 2014-04-14 | 2014-04-14 | Expansion rod in heat exchanging tube expanded connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203764809U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588519A (en) * | 2015-01-09 | 2015-05-06 | 山东新力拓节能服务工程科技有限公司 | Method for determining load current value for expending tubes |
| CN108063529A (en) * | 2017-12-29 | 2018-05-22 | 上海崇林汽车电子有限公司 | A kind of high efficiency motor stator assembling and disassembling device |
| CN110102651A (en) * | 2019-03-20 | 2019-08-09 | 宁波精达成形装备股份有限公司 | A kind of electric tube expander |
-
2014
- 2014-04-14 CN CN201420177468.3U patent/CN203764809U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588519A (en) * | 2015-01-09 | 2015-05-06 | 山东新力拓节能服务工程科技有限公司 | Method for determining load current value for expending tubes |
| CN108063529A (en) * | 2017-12-29 | 2018-05-22 | 上海崇林汽车电子有限公司 | A kind of high efficiency motor stator assembling and disassembling device |
| CN108063529B (en) * | 2017-12-29 | 2022-12-13 | 山东双林新能源科技有限公司 | Efficient motor stator assembling and disassembling device |
| CN110102651A (en) * | 2019-03-20 | 2019-08-09 | 宁波精达成形装备股份有限公司 | A kind of electric tube 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: 20140813 Termination date: 20190414 |