CN102784994B - Circulating fan of aluminium soldering preheating furnace - Google Patents
Circulating fan of aluminium soldering preheating furnace Download PDFInfo
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- CN102784994B CN102784994B CN201210163586.4A CN201210163586A CN102784994B CN 102784994 B CN102784994 B CN 102784994B CN 201210163586 A CN201210163586 A CN 201210163586A CN 102784994 B CN102784994 B CN 102784994B
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- transmission shaft
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- inner casing
- power transmission
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Abstract
The invention discloses a circulating fan of an aluminium soldering preheating furnace, which has a good cooling effect. The circulating fan comprises a thermal insulation mounting outer shell and a mounting inner shell arranged inside the thermal insulation mounting outer shell. The lower end of the mounting inner shell is connected with the thermal insulation mounting outer shell through a mounting base; the mounting inner shell is provided with a transmission shaft inside, and the transmission shaft is arranged on an upper bearing seat through an upper bearing; the upper bearing and an upper bearing clamp plate are arranged inside the upper bearing seat through first bolts; the transmission shaft is also arranged on the lower bearing seat through a lower bearing which is arranged inside the lower bearing seat together with a lower bearing clamp plate through second bolts; the upper bearing seat and the lower bearing seat are fixedly arranged on the mounting inner shell; an inner air cavity is arranged inside the mounting inner shell between the upper bearing seat and the lower bearing seat; a blade mounting cavity is arranged inside the mounting inner shell at the lower end of the lower bearing seat; a plurality of blades are evenly arranged on the transmission shaft in the blade mounting cavity; and an outer air cavity is arranged between the mounting inner shell and the thermal insulation mounting outer shell.
Description
Technical field
The present invention relates to a kind of circulating fan, particularly relate to a kind of circulating fan be used on aluminium soldering preheating furnace.
Background technology
Aluminum brazing furnace is a kind of equipment being carried out by each for aluminum heat exchanger parts effectively connecting.Utilize the alloy melting point of almit to carry out welding lower than this characteristic of fusing point of aluminum metallic material.Solder be usually placed in need connecting portion solder side near or the inside; between parts and solder side and surface scribble NOCOLOK aluminum brazing flux; install after drying, parts are heated to brazing alloy melting and the nonfused temperature of parts metals under certain inert gas shielding.Inert gas used is generally nitrogen.Simultaneously NOCOLOK aluminum brazing flux breaks the oxide-film of aluminium, allows between its motlten metal and infusible metal and carries out diffusion into the surface, after cooling, braze metal will and component contact face between form corrupt split.
The structure of aluminum brazing furnace mainly comprises: Shang Jian district, spray district, dry section, brazing area, pre-cooling zone, strong cooling section and lower part district.Needed to carry out preheating to workpiece before carrying out soldering to workpiece, make workpiece temperature even, in order to prevent workpiece to be oxidized, needing to carry out nitrogen protection, therefore, the front end of brazing area being provided with preheating furnace, in preheating furnace, being provided with circulating fan.Existing circulating fan generally adopts the mode of water-cooled to cool, and after using a period of time, the water jacket in circulating fan easily occurs seepage, affects nitrogen protection effect, easily makes workpiece be oxidized.
Summary of the invention
Technical problem to be solved by this invention is: the aluminium soldering preheating furnace circulating fan providing a kind of good cooling results.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: aluminium soldering preheating furnace circulating fan, comprise: insulation mounting casing, be arranged on the installation inner casing in insulation mounting casing, the lower end of installing inner casing is connected with insulation mounting casing by mounting seat, power transmission shaft is provided with in installation inner casing, power transmission shaft is arranged on top chock by upper bearing (metal), upper bearing (metal) is arranged in top chock by the first screw and upper bearing (metal) pressing plate, power transmission shaft is arranged on step by lower bearing, lower bearing is arranged in step by the second screw and lower bearing pressing plate, top chock and step are fixedly installed on to be installed on inner casing, interior air cavity is provided with in installation inner casing between top chock and step, fan blade installation cavity is provided with in the installation inner casing of step lower end, power transmission shaft in fan blade installation cavity is evenly provided with some fan blades, outer air cavity is provided with between installation inner casing and insulation mounting casing, the upper end of power transmission shaft is provided with drive, drive is connected with motor by driving-belt, power transmission shaft is fixed on the bottom of insulation mounting casing by mounting flange and the 3rd screw, the lower end of power transmission shaft is provided with impeller, the lower end of mounting seat is provided with gas sealing mechanism, be set up in level Hermetic Package and be provided with channel of nitrogen, nitrogen tube is provided with outside in air cavity, the lower end of nitrogen tube is connected with channel of nitrogen, the lower end of installing inner casing is provided with some first through holes, the upper end of insulation mounting casing is provided with mount pad, the side of fan blade installation cavity is connected by the lower end of the first through hole with outer air cavity, the upper end of outer air cavity is connected with the external world by the second through hole on mount pad, the upper end of fan blade installation cavity is connected with the lower end of interior air cavity by the some third through-holes on step, the upper end of interior air cavity is connected with the external world by the some fourth holes on top chock, power transmission shaft and be provided with gap between gas sealing mechanism and the lower end being incubated mounting casing, the lower end of fan blade installation cavity is by the some fifth holes in mounting seat, gap is connected with in aluminium soldering preheating furnace stove, gap is connected with the lower end of nitrogen tube by channel of nitrogen.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: the lower end of described nitrogen tube is connected with channel of nitrogen by interface channel.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: the lower end of described installation inner casing is provided with adpting flange, installs inner casing and is fixed in mounting seat by adpting flange and the 4th screw.
Advantage of the present invention is: above-mentioned aluminium soldering preheating furnace circulating fan; good cooling results; extend the service life of bearing of knowing clearly; preheating can be carried out to nitrogen; reduce temperature difference when nitrogen enters in stove; improve the protected effect of nitrogen, effectively can prevent the workpiece in stove from occurring oxidation, use safer.Nitrogen also can cool power transmission shaft.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of aluminium soldering preheating furnace circulating fan of the present invention.
Fig. 2 is the structural representation of mount pad in Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram of mounting seat in Fig. 1.
Fig. 4 is the structure for amplifying schematic diagram of top chock in Fig. 1.
Fig. 5 is the structure for amplifying schematic diagram of adpting flange in Fig. 1.
In figure: 1, insulation mounting casing, 2, inner casing is installed, 3, mounting seat, 4, power transmission shaft, 5, upper bearing (metal), 6, top chock, 7, first screw, 8, upper bearing (metal) pressing plate, 9, lower bearing, 10, step, 11, second screw, 12, lower bearing pressing plate, 13, interior air cavity, 14, fan blade installation cavity, 15, fan blade, 16, outer air cavity, 17, drive, 18, mounting flange, 19, 3rd screw, 20, impeller, 21, gas sealing mechanism, 22, channel of nitrogen, 23, nitrogen tube, 24, first through hole, 25, mount pad, 26, second through hole, 27, fourth hole, 28, gap, 29, fifth hole, 30, interface channel, 31, adpting flange, 32, 4th screw, 33, inner casing installing hole, 34, first installing hole, 35, mounting seat axis hole, 36, nitrogen tube installing hole, 37, second installing hole, 38, 6th screw, 39, top chock axis hole, 40, 3rd installing hole, 41, nitrogen tube installing hole, 42, 4th installing hole.
Detailed description of the invention
Particular content of the present invention is described in detail below in conjunction with the drawings and specific embodiments.
As shown in Figures 1 to 5, aluminium soldering preheating furnace circulating fan, comprise: insulation mounting casing 1, be arranged on the installation inner casing 2 in insulation mounting casing 1, the lower end of installing inner casing 2 is connected with insulation mounting casing 1 by mounting seat 3, power transmission shaft 4 is provided with in installation inner casing 2, power transmission shaft 4 is arranged on top chock 6 by upper bearing (metal) 5, upper bearing (metal) 5 is arranged in top chock 6 by the first screw 7 and upper bearing (metal) pressing plate 8, power transmission shaft 4 is arranged on step 10 by lower bearing 9, lower bearing 9 is arranged in step 10 by the second screw 11 and lower bearing pressing plate 12, top chock 6 and step 10 are fixedly installed on
Install on inner casing 2, interior air cavity 13 is provided with in installation inner casing 2 between top chock 6 and step 10, fan blade installation cavity 14 is provided with in the installation inner casing 2 of step 10 lower end, power transmission shaft 4 in fan blade installation cavity 14 is evenly provided with some fan blades 15, outer air cavity 16 is provided with between installation inner casing 2 and insulation mounting casing 1, the upper end of power transmission shaft 4 is provided with drive 17, drive 17 is connected with motor by driving-belt, power transmission shaft 4 is fixed on the bottom of insulation mounting casing 1 by mounting flange 18 and the 3rd screw 19, the lower end of power transmission shaft 4 is provided with impeller 20, the lower end of mounting seat 3 is provided with gas sealing mechanism 21, gas sealing mechanism 21 is provided with channel of nitrogen 22, nitrogen tube 23 is provided with outside in air cavity 16, the lower end of nitrogen tube 23 is connected with channel of nitrogen 22, the lower end of installing inner casing 2 is provided with some first through holes 24, the upper end of insulation mounting casing 1 is provided with mount pad 25, the side of fan blade installation cavity 14 is connected by the lower end of the first through hole 24 with outer air cavity 16, the upper end of outer air cavity 16 is connected with the external world by the second through hole 26 on mount pad 25, the upper end of fan blade installation cavity 14 is connected by the lower end of the some third through-holes on step 10 with interior air cavity 13, the upper end of interior air cavity 13 is connected with the external world by the some fourth holes 27 on top chock 6, power transmission shaft 4 and be provided with gap 28 between gas sealing mechanism 21 and the lower end being incubated mounting casing 1, the lower end of fan blade installation cavity 14 is by the some fifth holes 29 in mounting seat 3, gap 28 is connected with in aluminium soldering preheating furnace stove, gap 28 is connected by the lower end of channel of nitrogen 22 with nitrogen tube 23.
As shown in Figure 1, the lower end of described nitrogen tube 23 is connected with channel of nitrogen 22 by interface channel 30.
As shown in Figure 1, the lower end of described installation inner casing 2 is provided with adpting flange 31, inner casing 2 is installed and is fixed in mounting seat 3 by adpting flange 31 and the 4th screw 32.
As shown in Figure 2, described mount pad 25 is also provided with inner casing installing hole 33 and some first installing holes 34, and mount pad 25 is fixed on body of heater by screw and the first installing hole 34.
As shown in Figure 3, described mounting seat 3 also arranges mounting seat axis hole 35, nitrogen tube installing hole 36 and some second installing holes 37, mounting seat 3 is fixed on insulation mounting casing 1 by the 6th screw 38 and the second installing hole 37.
As shown in Figure 4, described top chock 6 is identical with the structure of step 10, and described top chock 6 is also provided with top chock axis hole 39 and some 3rd installing holes 40.Described upper bearing (metal) pressing plate 8 is fixed on top chock 6 by the first screw 7 and the 3rd installing hole 40.
As shown in Figure 4, described top chock 6 is identical with the structure of step 10, and described top chock 6 is also provided with top chock axis hole 39 and some 3rd installing holes 40.Described upper bearing (metal) pressing plate 8 is fixed on top chock 6 by the first screw 7 and the 3rd installing hole 40.
As shown in Figure 5, described adpting flange 31 is also provided with nitrogen tube installing hole 41 and some 4th installing holes 42, and adpting flange 31 is fixed in mounting seat 3 by the 4th screw 32 and the 4th installing hole 42.
As shown in Figure 1, motor drives power transmission shaft 4 and fan blade 15 to rotate by driving-belt, drive 17, and wind enters from the external world by the upper end of interior air cavity 13, through fan blade installation cavity 14, then from outer air cavity 16
Upper end is gone out, and the wind of circulation can cool power transmission shaft 4 and bearing.Nitrogen is entered by nitrogen tube 23, interface channel 30, channel of nitrogen 22; preheating can be carried out to nitrogen; reduce temperature difference when nitrogen enters in stove; part nitrogen enters in stove by gap 28; carry out nitrogen protection; another part nitrogen enters in fan blade installation cavity 14 and outer air cavity 16 by gap 28, then goes out from the upper end of outer air cavity 16, can again cool power transmission shaft 4.
Above-described embodiment is used for illustrative purposes only; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; when not departing from the present invention's spirit and protection domain; can also make various change and modification, therefore all equivalent technical schemes also should belong to protection category of the present invention.
Claims (3)
1. aluminium soldering preheating furnace circulating fan, it is characterized in that: comprising: insulation mounting casing (1), be arranged on the installation inner casing (2) in insulation mounting casing (1), the lower end of installing inner casing (2) is connected with insulation mounting casing (1) by mounting seat (3), power transmission shaft (4) is provided with in installation inner casing (2), power transmission shaft (4) is arranged on top chock (6) by upper bearing (metal) (5), upper bearing (metal) (5) is arranged in top chock (6) by the first screw (7) and upper bearing (metal) pressing plate (8), power transmission shaft (4) is arranged on step (10) by lower bearing (9), lower bearing (9) is arranged in step (10) by the second screw (11) and lower bearing pressing plate (12), top chock (6) and step (10) are fixedly installed on to be installed on inner casing (2), interior air cavity (13) is provided with in installation inner casing (2) between top chock (6) and step (10), fan blade installation cavity (14) is provided with in the installation inner casing (2) of step (10) lower end, power transmission shaft (4) in fan blade installation cavity (14) is evenly provided with some fan blades (15), outer air cavity (16) is provided with between installation inner casing (2) and insulation mounting casing (1), the upper end of power transmission shaft (4) is provided with drive (17), drive (17) is connected with motor by driving-belt, power transmission shaft (4) is fixed on the bottom of insulation mounting casing (1) by mounting flange (18) and the 3rd screw (19), the lower end of power transmission shaft (4) is provided with impeller (20), the lower end of mounting seat (3) is provided with gas sealing mechanism (21), gas sealing mechanism (21) is provided with channel of nitrogen (22), nitrogen tube (23) is provided with outside in air cavity (16), the lower end of nitrogen tube (23) is connected with channel of nitrogen (22), the lower end of installing inner casing (2) is provided with some first through holes (24), the upper end of insulation mounting casing (1) is provided with mount pad (25), the side of fan blade installation cavity (14) is connected by the lower end of the first through hole (24) with outer air cavity (16), the upper end of outer air cavity (16) is connected with the external world by the second through hole (26) on mount pad (25), the upper end of fan blade installation cavity (14) is connected by the lower end of the some third through-holes on step (10) with interior air cavity (13), the upper end of interior air cavity (13) is connected with the external world by the some fourth holes (27) on top chock (6), power transmission shaft (4) and be provided with gap (28) between gas sealing mechanism (21) and the lower end being incubated mounting casing (1), the lower end of fan blade installation cavity (14) is by the some fifth holes (29) in mounting seat (3), gap (28) is connected with in aluminium soldering preheating furnace stove, gap (28) is connected by the lower end of channel of nitrogen (22) with nitrogen tube (23).
2. according to aluminium soldering preheating furnace circulating fan according to claim 1, it is characterized in that: the lower end of described nitrogen tube (23) is connected with channel of nitrogen (22) by interface channel (30).
3. according to the aluminium soldering preheating furnace circulating fan described in claim 1 or 2, it is characterized in that: the lower end of described installation inner casing (2) is provided with adpting flange (31), inner casing (2) is installed and is fixed in mounting seat (3) by adpting flange (31) and the 4th screw (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210163586.4A CN102784994B (en) | 2012-05-24 | 2012-05-24 | Circulating fan of aluminium soldering preheating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210163586.4A CN102784994B (en) | 2012-05-24 | 2012-05-24 | Circulating fan of aluminium soldering preheating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102784994A CN102784994A (en) | 2012-11-21 |
| CN102784994B true CN102784994B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210163586.4A Expired - Fee Related CN102784994B (en) | 2012-05-24 | 2012-05-24 | Circulating fan of aluminium soldering preheating furnace |
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| Country | Link |
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| CN (1) | CN102784994B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111037025B (en) * | 2019-12-26 | 2022-02-25 | 盐城海荣炉业科技有限公司 | Brazing furnace transmission nitrogen protection device |
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| US6637637B2 (en) * | 2000-12-12 | 2003-10-28 | Sharp Kabushiki Kaisha | Reflow apparatus |
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| CN201013625Y (en) * | 2006-12-29 | 2008-01-30 | 上海通用风机股份有限公司 | New style high-temperature fan |
| CN201027700Y (en) * | 2007-04-09 | 2008-02-27 | 盐城市康杰机械制造有限公司 | Internal heat circulating fan of heating brazing furnace |
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| CN101713413A (en) * | 2008-10-06 | 2010-05-26 | 建准电机工业股份有限公司 | Inner rotor type radiator fan |
| CN201916240U (en) * | 2010-12-22 | 2011-08-03 | 上海诺地乐通用设备制造有限公司 | Vertical water-cooling bearing block for blower in high-temperature furnace |
| CN202894532U (en) * | 2012-05-24 | 2013-04-24 | 盐城市康杰机械制造有限公司 | Aluminum brazing preheating furnace circulating fan |
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2012
- 2012-05-24 CN CN201210163586.4A patent/CN102784994B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2630669B2 (en) * | 1989-07-14 | 1997-07-16 | ヴェーアーペー ライニグングスジステーメ ゲゼルシャフト ミット ベシュレンクタ ハフトゥンク ウント コンパニ | Electronics commutation motor for vacuum cleaners and the like |
| US6637637B2 (en) * | 2000-12-12 | 2003-10-28 | Sharp Kabushiki Kaisha | Reflow apparatus |
| CN201013625Y (en) * | 2006-12-29 | 2008-01-30 | 上海通用风机股份有限公司 | New style high-temperature fan |
| CN101025332A (en) * | 2007-04-06 | 2007-08-29 | 盐城市康杰机械制造有限公司 | Sealed hot-air agitating device for nitrogen-protective soldering furnace |
| CN201027700Y (en) * | 2007-04-09 | 2008-02-27 | 盐城市康杰机械制造有限公司 | Internal heat circulating fan of heating brazing furnace |
| CN101245793A (en) * | 2008-03-26 | 2008-08-20 | 浙江金盾风机风冷设备有限公司 | Thermal circulation fan |
| CN101713413A (en) * | 2008-10-06 | 2010-05-26 | 建准电机工业股份有限公司 | Inner rotor type radiator fan |
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| CN202894532U (en) * | 2012-05-24 | 2013-04-24 | 盐城市康杰机械制造有限公司 | Aluminum brazing preheating furnace circulating fan |
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| CN102784994A (en) | 2012-11-21 |
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Granted publication date: 20150422 Termination date: 20190524 |