CN105298913A - Blade of axial flow fan and manufacturing method of blade - Google Patents
Blade of axial flow fan and manufacturing method of blade Download PDFInfo
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- CN105298913A CN105298913A CN201510839856.2A CN201510839856A CN105298913A CN 105298913 A CN105298913 A CN 105298913A CN 201510839856 A CN201510839856 A CN 201510839856A CN 105298913 A CN105298913 A CN 105298913A
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- flabellum
- blade
- face
- housing
- petiole
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Abstract
The invention discloses a blade of an axial flow fan and a manufacturing method of the blade. The blade comprises a housing of which the cross section is shuttle-shaped, wherein the highest part of the shuttle shape, namely, the thickest part of the blade, is deviated to a windward side of the blade; the housing is filled with a foaming filling body. According to the blade of the axial flow fan, the shuttle-shaped housing is adopted and meets the airflow theory; meanwhile, the housing is filled with a foaming agent which can expand in the closed housing and fully fill a cavity in the closed housing, and the solidified foaming agent can form a solid-core body through which a molded line of the blade can be solidified and a large force for outwards supporting the housing can be applied to the housing, so that the blade cannot be deformed when the fan runs, and as a result, the stability of pneumatic performances of the fan can be effectively ensured, the noise can be reduced, and the service life of the blade can be protected. The blade is simple in structure, simple and convenient to construct, stable and reliable in performances, and long in service life. The manufacturing method of the blade is simple and convenient, and the operation is easily carried out.
Description
Technical field
The invention belongs to propeller fan technical field, particularly relate to a kind of propeller fan flabellum and manufacture method thereof.
Background technique
At present, mine propeller fan runs the phenomenons such as ubiquity solid dust, vibration, owing to being subject to the harsh conditions effect such as dust friction and facility environment vibration, fan operation is after 2 ~ 3 years, often there is the problems such as the wearing and tearing of flabellum head edge weld seam cracking, stress released-deformation in its steel fan leaf, cause fan noise increase, performance variation, reliability to reduce, have a strong impact on the safety and stability of fan operation.
Summary of the invention
The object of the invention is for above-mentioned the deficiencies in the prior art, a kind of propeller fan flabellum of high reliability is provided, effective solution steel flabellum is because of die mould stress relief, cause the problem that flabellum is out of shape, noise increases, performance reduces, thus improve Coal Mine Axial Flow Fan performance and operational reliability, extend flabellum working life.
Another object of the present invention is to provide a kind of manufacture method of above-mentioned propeller fan flabellum.
The technological scheme adopted for realizing object of the present invention is: a kind of propeller fan flabellum, comprise the flabellum housing that a cross section is fusiformis, the windward side of the maximum height position of described fusiformis and the thickest position deflection flabellum of flabellum, is filled with foam-filled body in described housing.
Described housing is Steel Work.
The centrifugal end at described flabellum windward side edge has part overlaying structure.
The length of described overlaying structure is the 1/4-1/2 of flabellum length.
The width of described overlaying structure is 3-5mm.
A manufacture method for above-mentioned propeller fan flabellum, comprises the following steps:
1) blanking: carry out steel plate cutting stock respectively according to the hush panel of flabellum design size to P face and S face and flabellum two ends, and according to designing requirement getting out the rivet hole for riveting dress petiole respectively in the P face of flabellum and S face, the hush panel of flabellum petiole end gets out petiole and places hole and filling hole;
2) die mould: adopt shaping die to carry out die mould to the P face of flabellum and S face respectively, make it form bending globoidal structure;
3) weld: the windward side in welding P face and S face and leeward side connecting sewing, first adopt spot welding to carry out overlap joint to P face and S face and form fusiformis structure, then by spot welding, the hush panel of centrifugal end is connected, finally by each connecting sewing full weld;
4) rivet petiole: be first placed on petiole by petiole end closure sleeve-board, then petiole is inserted in leaf shell inside and rivets, meanwhile, spot welding is carried out to petiole end closure plate and fixes and seam full weld;
5) filling-foam agent: fill a certain amount of stabilizer to crossing the leaf shell internal cavities of filling hole to blade and stifled weldering can be carried out by filling hole, then sheet being put into casted die mould, be not less than more than pressurize 30min under 150 tons of pressure;
6) built-up welding: the centrifugal end margin of flabellum windward side by design size cutting breach go forward side by side windrow weldering fill and lead up.
Described stabilizer comprises isocyanates and polytrimethylene ether, and its weight ratio is 1:0.8-1.5.
The loading of described stabilizer to be the foam volume of stabilizer the be 3-6 of leaf shell cavity volume doubly.
The invention has the beneficial effects as follows:
1) the flabellum housing of fusiformis is adopted, meet air-flow principle, simultaneously, filling-foam agent in this flabellum housing, stabilizer has high temperature resistant, ageing-resistant, high flame retardant and the characteristic of not reacting with water, stabilizer expands and is full of die cavity in airtight flabellum housing, real core body is formed after solidification, flabellum molded line is solidified, and powerful outside support force is formed to flabellum housing, guarantee in fan operation process, flabellum is indeformable, thus effectively ensure aerodynamic stable performance, can noise be reduced, and improve flabellum working life.
2) further, by at the windward side of flabellum centrifugal end setting unit overlaying structure, effectively can strengthen hardness and the wear-resisting property of flabellum head edge, thus effectively improve the antiwear property of flabellum in dust atmosphere, solve the problem of flabellum head edge weld seam wearing and tearing cracking, and improve the working life of flabellum further.
3) preparation method of the present invention is by adopting two-sided blanking and die mould welding, form the streamlined flabellum shell construction meeting air motion, under packing state, the filling-foam agent of leaf shell is fully foamed again, stabilizer adopts 3-6 doubly to leaf shell cavity volume, foaming agent foam can be effectively made to form powerful outside support force, simultaneously, avoid again because dosage is excessive, leaf shell being strutted, inner foaming and intumescing support force and the acting in conjunction of outside casted die mould pressure, make the stable sizing of leaf shell, simultaneously, stabilizer forms at leaf shell inside solidification the closely knit real core body that compacts, flabellum molded line is solidified, realize blower fan long-term stability to run, flabellum is indeformable, performance safety is reliable.
4) blade structure of the present invention is simple, easy construction, and flabellum stable performance, reliable, the life-span is long, and its manufacture method is easy, easy to operate.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is structural representation of the present invention;
Fig. 2 be in Fig. 1 A-A to cross-sectional structure schematic diagram;
Fig. 3 is the structural representation after filling-foam agent of the present invention in casted die mould.
Embodiment
Embodiment one
As Figure 1-3: the present invention is used for the high reliability flabellum of mine propeller fan, comprise the steel flabellum housing 1 that a cross section is fusiformis, the P face of housing 1 and S face are laid with corresponding rivet hole 5, as shown in Figure 2, the windward side a of the maximum height position of described fusiformis housing 1 inner chamber and the thickest position deflection flabellum of flabellum, away from leeward side b, form a left-right asymmetry fusiform cross-sectional, foam-filled body 2 is filled with in described housing 1, in described flabellum windward side and figure, the centrifugal end of a side margin has part overlaying structure 3, this overlaying structure 3 and housing 1 junction have a ramp structure 4 in a certain angle with side a, another junction plane is parallel with side a, namely overlaying structure 3 is trapezium structure, P face and the S face of its upper and lower surface and flabellum match, overall in streamlined cambered surface, namely concordant with a side margin edge lengths in its long limit is 200mm, account for 1/4 of flabellum length, the height of its width and trapezium structure is 5mm.
Its preparation method, comprises the following steps:
1) blanking: carry out steel plate cutting stock respectively according to the hush panel of flabellum design size to P face and S face and flabellum two ends, and according to designing requirement getting out the rivet hole 5 for riveting dress petiole respectively in the P face of flabellum and S face, the hush panel of flabellum petiole end gets out petiole and places hole and filling hole 6;
2) die mould: adopt shaping die to carry out die mould to the P face of flabellum and S face respectively, make it form bending globoidal structure;
3) weld: the windward side a in welding P face and S face and leeward side b connecting sewing, first adopt spot welding to carry out overlap joint to P face and S face and form fusiformis structure, then by spot welding, the hush panel of centrifugal end is connected, finally by each connecting sewing full weld;
4) rivet petiole: be first placed on petiole by petiole end closure sleeve-board, then petiole is inserted in leaf shell 1 inside and rivets, meanwhile, spot welding is carried out to petiole end closure plate and fixes and seam full weld;
5) filling-foam agent: stabilizer adopts weight ratio to be after 1:0.8 isocyanates and polytrimethylene ether homogeneous mixture rapid stirring mix, fill to leaf shell 1 internal cavities of blade the stabilizer that natural foaming volume is leaf shell cavity volume 3 times amount by filling hole, and stifled weldering is carried out to filling hole 6, then between upper die and lower die sheet being put into casted die mould, pressurize 40min under the working pressure of 150 tons, as shown in Figure 3;
6) built-up welding: the centrifugal end margin of flabellum windward side by design size cut out trapeze cut go forward side by side windrow weldering fill and lead up.
Embodiment two
The difference of the present embodiment and embodiment one is: overlaying structure 3 and housing 1 junction are laciniation, and its long edge lengths is 150mm, accounts for 1/2 of flabellum length, and width is 3mm.In described stabilizer, the weight ratio of isocyanates and polytrimethylene ether is 1:1.5,6 times of its loading to be the foam volume of stabilizer be leaf shell cavity volume.After filling-foam agent, the working pressure of casted die mould is 180 tons.
The difference of the present embodiment and embodiment one is: overlaying structure 3 and housing 1 junction are laciniation, and its long edge lengths is 180mm, accounts for 1/3 of flabellum length, and width is 4mm.In described stabilizer, the weight ratio of isocyanates and polytrimethylene ether is 1:1.2,4 times of its loading to be the foam volume of stabilizer be leaf shell cavity volume.After filling-foam agent, the working pressure of casted die mould is 160 tons.
Technological scheme of the present invention is not restricted in the scope of embodiment of the present invention.The technology contents of the not detailed description of the present invention is known technology.
Claims (9)
1. a propeller fan flabellum, is characterized in that: it comprises the flabellum housing that a cross section is fusiformis, and the windward side of the maximum height position of described fusiformis and the thickest position deflection flabellum of flabellum, is filled with foam-filled body in described housing.
2. flabellum as claimed in claim 1, it is characterized in that: described stabilizer comprises isocyanates and polytrimethylene ether, its weight ratio is 1:0.8-1.5.
3. flabellum as claimed in claim 1, is characterized in that: described housing is Steel Work.
4. flabellum as claimed in claim 1, is characterized in that: the centrifugal end at described flabellum windward side edge has part overlaying structure.
5. flabellum as claimed in claim 4, is characterized in that: the length of described overlaying structure is the 1/4-1/2 of flabellum length.
6. the flabellum as described in claim 4 or 5, is characterized in that: the width of described overlaying structure is 3-5mm.
7. a manufacture method for propeller fan flabellum, is characterized in that: comprise the following steps:
1, blanking: carry out steel plate cutting stock respectively according to the hush panel of flabellum design size to P face and S face and flabellum two ends, and according to designing requirement getting out the rivet hole for riveting dress petiole respectively in the P face of flabellum and S face, the hush panel of flabellum petiole end gets out petiole and places hole and filling hole;
2, die mould: adopt shaping die to carry out die mould to the P face of flabellum and S face respectively, make it form bending globoidal structure;
3, weld: the windward side in welding P face and S face and leeward side connecting sewing, first adopt spot welding to carry out overlap joint to P face and S face and form fusiformis structure, then by spot welding, the hush panel of centrifugal end is connected, finally by each connecting sewing full weld;
4, rivet petiole: be first placed on petiole by petiole end closure sleeve-board, then petiole is inserted in leaf shell inside and rivets, meanwhile, spot welding is carried out to petiole end closure plate and fixes and seam full weld;
5, filling-foam agent: fill a certain amount of stabilizer to crossing the leaf shell internal cavities of filling hole to blade and stifled weldering can be carried out by filling hole, then sheet being put into casted die mould, be not less than more than pressurize 30min under 150 tons of pressure;
6, built-up welding: the centrifugal end margin of flabellum windward side by design size cutting breach go forward side by side windrow weldering fill and lead up.
8. preparation method as claimed in claim 7, it is characterized in that: described stabilizer comprises isocyanates and polytrimethylene ether, its weight ratio is 1:0.8-1.5.
9. as claimed in claim 7 or 8 preparation method, is characterized in that: the loading of described stabilizer to be the foam volume of stabilizer the be 3-6 of leaf shell cavity volume doubly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839856.2A CN105298913A (en) | 2015-11-27 | 2015-11-27 | Blade of axial flow fan and manufacturing method of blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510839856.2A CN105298913A (en) | 2015-11-27 | 2015-11-27 | Blade of axial flow fan and manufacturing method of blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105298913A true CN105298913A (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510839856.2A Pending CN105298913A (en) | 2015-11-27 | 2015-11-27 | Blade of axial flow fan and manufacturing method of blade |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679355A (en) * | 2016-11-04 | 2017-05-17 | 佛山市南海新达高梵实业有限公司 | Air-drying device for aluminum profile |
| CN107781217A (en) * | 2017-12-03 | 2018-03-09 | 山西巨龙风机有限公司 | A kind of corrosion-resistant steel blade |
| CN112621140A (en) * | 2020-12-08 | 2021-04-09 | 重庆江东机械有限责任公司 | Steam turbine hollow stationary blade hydro-forming process |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56104197A (en) * | 1980-01-22 | 1981-08-19 | Nippon Spindle Mfg Co Ltd | Manufacture of frp-made fan |
| US5096384A (en) * | 1990-07-27 | 1992-03-17 | The Marley Cooling Tower Company | Plastic fan blade for industrial cooling towers and method of making same |
| US5123814A (en) * | 1990-07-27 | 1992-06-23 | The Marley Cooling Tower Company | Industrial cooling tower fan blade having abrasion resistant leading edge |
| US5230850A (en) * | 1991-05-16 | 1993-07-27 | Lewis Raymond O | Fan blade reinforcement using bonded hollow spheres |
| US5403161A (en) * | 1991-03-29 | 1995-04-04 | Dennis T. Nealon | Air foil blade and methods of making same |
| JPH1122696A (en) * | 1997-07-01 | 1999-01-26 | Mitsubishi Heavy Ind Ltd | Blade of axial fan |
| US20040018091A1 (en) * | 2002-07-26 | 2004-01-29 | Rongong Jem A. | Turbomachine blade |
| CN2634159Y (en) * | 2003-08-12 | 2004-08-18 | 王加龙 | Novel transformer cooling fan |
| CN202493490U (en) * | 2012-03-13 | 2012-10-17 | 湖南德尚源耐磨工业有限公司 | Wing type draught fan blade structure |
| CN103781588A (en) * | 2011-08-10 | 2014-05-07 | 斯奈克玛 | Method for producing a protective reinforcement of the leading edge of a vane |
| CN104358708A (en) * | 2014-08-19 | 2015-02-18 | 航天材料及工艺研究所 | Carbon fiber composite foam core sandwich structure wind tunnel fan blade and molding method |
| CN205243944U (en) * | 2015-11-27 | 2016-05-18 | 卧龙电气南阳防爆集团股份有限公司 | Mine is flabellum for axial -flow blower |
-
2015
- 2015-11-27 CN CN201510839856.2A patent/CN105298913A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56104197A (en) * | 1980-01-22 | 1981-08-19 | Nippon Spindle Mfg Co Ltd | Manufacture of frp-made fan |
| US5096384A (en) * | 1990-07-27 | 1992-03-17 | The Marley Cooling Tower Company | Plastic fan blade for industrial cooling towers and method of making same |
| US5123814A (en) * | 1990-07-27 | 1992-06-23 | The Marley Cooling Tower Company | Industrial cooling tower fan blade having abrasion resistant leading edge |
| US5403161A (en) * | 1991-03-29 | 1995-04-04 | Dennis T. Nealon | Air foil blade and methods of making same |
| US5230850A (en) * | 1991-05-16 | 1993-07-27 | Lewis Raymond O | Fan blade reinforcement using bonded hollow spheres |
| JPH1122696A (en) * | 1997-07-01 | 1999-01-26 | Mitsubishi Heavy Ind Ltd | Blade of axial fan |
| US20040018091A1 (en) * | 2002-07-26 | 2004-01-29 | Rongong Jem A. | Turbomachine blade |
| CN2634159Y (en) * | 2003-08-12 | 2004-08-18 | 王加龙 | Novel transformer cooling fan |
| CN103781588A (en) * | 2011-08-10 | 2014-05-07 | 斯奈克玛 | Method for producing a protective reinforcement of the leading edge of a vane |
| CN202493490U (en) * | 2012-03-13 | 2012-10-17 | 湖南德尚源耐磨工业有限公司 | Wing type draught fan blade structure |
| CN104358708A (en) * | 2014-08-19 | 2015-02-18 | 航天材料及工艺研究所 | Carbon fiber composite foam core sandwich structure wind tunnel fan blade and molding method |
| CN205243944U (en) * | 2015-11-27 | 2016-05-18 | 卧龙电气南阳防爆集团股份有限公司 | Mine is flabellum for axial -flow blower |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679355A (en) * | 2016-11-04 | 2017-05-17 | 佛山市南海新达高梵实业有限公司 | Air-drying device for aluminum profile |
| CN106679355B (en) * | 2016-11-04 | 2023-04-25 | 佛山市南海新达高梵实业有限公司 | Air drying device for aluminum profile |
| CN107781217A (en) * | 2017-12-03 | 2018-03-09 | 山西巨龙风机有限公司 | A kind of corrosion-resistant steel blade |
| CN112621140A (en) * | 2020-12-08 | 2021-04-09 | 重庆江东机械有限责任公司 | Steam turbine hollow stationary blade hydro-forming process |
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Application publication date: 20160203 |
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