CN102022379A - Axial flow fan propeller - Google Patents

Axial flow fan propeller Download PDF

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Publication number
CN102022379A
CN102022379A CN 201010610243 CN201010610243A CN102022379A CN 102022379 A CN102022379 A CN 102022379A CN 201010610243 CN201010610243 CN 201010610243 CN 201010610243 A CN201010610243 A CN 201010610243A CN 102022379 A CN102022379 A CN 102022379A
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CN
China
Prior art keywords
blade
petiole
wheel hub
disk
turbine disk
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Granted
Application number
CN 201010610243
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Chinese (zh)
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CN102022379B (en
Inventor
苏莫明
李世武
郭建民
郝凡森
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Northwestern Polytechnical University
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Northwestern Polytechnical University
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Priority to CN2010106102439A priority Critical patent/CN102022379B/en
Publication of CN102022379A publication Critical patent/CN102022379A/en
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Publication of CN102022379B publication Critical patent/CN102022379B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention relates to an axial flow fan propeller, wherein an blade-disk sleeved on a hub is spliced by a plurality of blade-disk petals; the both sides of each blade-disk petal are separately provided with a tenon and a mortise; and the tenon of each blade-disk petal is embedded in the mortise of another adjacent blade-disk petal, and the blade-disk petals are sleeved and spliced to form the complete blade-disk. The center of each blade handle is provided with a connecting hole; and mounting holes for the blade handles are uniformly distributed on a blade handle mounting disk, and the positions of the mounting holes correspond to those of the connecting holes of the blade handles. Hub connecting holes are uniformly distributed on the edge of the excircle of a spoke disk and used for connecting the spoke disk with a connecting hub 4, and blade handle connecting holes are uniformly distributed on the edge of the incircle of the spoke disk and used for connecting the spoke disk with the blade handles. By adopting the invention, the uniformity of the machining precision and strength of the blade-disk can be increased, the machining cost can be reduced, the reliability and the machining precision can be increased; and the fan blade can be changed conveniently in situ, and the service life of the fan can be prolonged.

Description

A kind of axial fan impeller
Technical field
What the present invention relates to is the blower fan field, is a kind of axial fan impeller.
Background technique
Blower fan is ventilation equipment, and axial-flow blower is the blower fan that a class is important and amount is big, and a large amount of axial-flow blowers that use are brought into play its dust removal by ventilation effect in colliery, mine, tunnel, chemical industry, the energy, textile industry.
How closely related with the performance of draught fan impeller the performance of axial-flow blower is.Draught fan impeller generally is made up of parts such as one group of blade, turbine disk, wheel hub, spoke dishes, and its core component is blade and turbine disk.For the core component processing of draught fan impeller, prior art has two kinds of methods, and a kind of is the split processing method, and another is whole processing method.
The split processing method is blade and the turbine disk that processes earlier each monomer respectively, and then the blade of each monomer is welded on the turbine disk.The deficiency of split processing method is: (a) because one group of a plurality of blade is welded on the turbine disk, this relates to a plurality of blade conformity welding location, so just be difficult for making the welding accurate positioning of a plurality of blades, thereby the design performance of blower fan is descended, descend as fan efficiency and blower ventilation amount; (b) welding procedure is difficult to guarantee the weld strength and the conformity of each blade; (c) when certain blade damage, be difficult to blade be changed at the blower fan scene.
Whole processing method, be that one group of blade and turbine disk are carried out cast inblock, though this method can accomplish to make the conformity location of a plurality of blades on turbine disk in a group, but whole processing method has caused other deficiency, show as: (a) because one group of a plurality of blade has the stereo-overlap part on turbine disk, make cast-in-block mould manufacture difficulty big like this, especially be difficult to withdrawing pattern in casting process; (b) need adopt smart casting to the cast inblock of blade and turbine disk, precision casting mould is the cost height not only, and owing to withdrawing pattern difficulty in casting process is big, so the yield rate of cast inblock processing is not high; (c) when certain blade damage, can't change blade at the blower fan scene, can only change whole blade wheel disc and whole blades, operation maintenance expense like this is high.
Summary of the invention
In order to overcome above-mentioned split processing method and whole processing method to the deficiency in the processing of blade and turbine disk, the present invention proposes a kind of axial fan impeller.
The present invention includes wheel hub, blade, petiole and turbine disk, it is characterized in that, the blade lobe consists of one by blade, tenon, petiole, attachment hole and tongue-and-groove, and global formation.There is the petiole mounting disc of radially protruding at the wheel hub middle part; Blade pass is crossed petiole and is fixed in the petiole mounting disc of wheel hub; Two spoke dishes are sleeved on the wheel hub and are positioned at the both ends of the surface of petiole mounting disc.Turbine disk is sleeved on the wheel hub; Turbine disk is to be spliced by a plurality of turbine disk lobes.Dual-side at the turbine disk lobe has tenon and tongue-and-groove respectively, and the tenon on each piece turbine disk lobe all embeds in the tongue-and-groove on another adjacent piece turbine disk lobe, and socket is assembled into complete turbine disk mutually.At each petiole center attachment hole is arranged; Uniform petiolate mounting hole in the petiole mounting disc, the position of this mounting hole is corresponding with petiolar attachment hole.Be evenly distributed with the wheel hub attachment hole that this spoke dish is connected with wheel hub at the outer circular edge place of spoke dish, be evenly distributed with the petiole attachment hole that this spoke dish is connected with petiole at the internal circle edge place of spoke dish.
The external diameter of the petiole mounting disc on the external diameter of two spoke dishes and the wheel hub is identical.
Because the technological scheme that the present invention takes, accomplished the conformity of blade lobe machining accuracy and intensity, become turbine disk by blade lobe joggle again, compare with impeller split processing method and whole processing method, its processing charges greatly reduce, and reliability and machining accuracy greatly improve, and can also obviously reduce production costs, conveniently replaced at the scene fan blade, thus working life of blower fan prolonged.
Description of drawings
Fig. 1 is the structural representation with axial fan impeller of tongue-and-groove,
Fig. 2 is the structural representation of blade lobe,
Fig. 3 is the structural representation of wheel hub,
Fig. 4 is the structural representation of spoke dish.Wherein:
1. bolt 2. turbine disks 3. spoke dishes 4. wheel hubs 5. blades 6. blade lobes 7. tenons 8. petioles 9. attachment holes 10. tongue-and-grooves 11. petiole mounting holes 12. petiole mounting discs 13. wheel hub attachment holes 14. petiole attachment holes
Embodiment
Embodiment one
Present embodiment is a kind of axial fan impeller.
Present embodiment comprises turbine disk 2, spoke dish 3, wheel hub 4, blade 5 and petiole 8.
Blade lobe 6 consists of one by blade 5, tenon 7, petiole 8, attachment hole 9 and tongue-and-groove 10, adopts the aluminum alloy cast inblock.There is the petiole mounting disc 12 of radially protruding at the middle part of wheel hub 4; Blade 5 is fixed in the petiole mounting disc 12 of wheel hub 4 by petiole 8.Two spoke dishes 3 are sleeved on the both ends of the surface of the petiole mounting disc 12 on the wheel hub 4, and fixing by bolt 1.Turbine disk 2 is sleeved on the wheel hub 4.Turbine disk 2 is to be spliced by 13 turbine disk lobes 6.Dual-side at turbine disk lobe 6 has tenon 7 and tongue-and-groove 10 respectively, and the tenon 7 on each piece turbine disk lobe 6 all embeds in the tongue-and-groove 10 on another adjacent piece turbine disk lobe 6, and socket is assembled into a complete cylindrical shape turbine disk 2 mutually.At the center of each petiole 8 attachment hole 9 is arranged.Be evenly equipped with petiole mounting hole 11 in petiole mounting disc 12, the position of this mounting hole is corresponding with petiolar attachment hole 9.Be evenly distributed with 13 wheel hub attachment holes 13 that this spoke dish 3 is connected with wheel hub 4 at the outer circular edge place of spoke dish 3, be evenly distributed with 13 petiole attachment holes 14 that this spoke dish 3 is connected with petiole 8 at the internal circle edge place of spoke dish 3.
Wheel hub 4 is a cylinder, and the impeller shaft of blower fan passes this cylinder, and the tube inwall has the wedge groove, adopts chock that impeller shaft and wheel hub 4 is fixing.
Spoke dish 3 is ring plates, is used to protect petiole 8 and fixes with wheel hub 4 contrapositions.The external diameter of spoke dish 3 equals the external diameter of petiole mounting disc 12, and is identical with the internal diameter of turbine disk 2, is 1200mm, the internal diameter of spoke dish 3 equals the external diameter of wheel hub 5, is 800mm, and the thickness of spoke dish 3 is 10mm, two spoke dish 3 folders are pasting impeller plate tube 2, fit with petiole mounting disc 12 again.Wheel hub attachment hole 13 on two spoke dishes 3 and the petiole mounting hole 11 on the wheel hub 5 be the hole contraposition and fix with bolt 1, petiole attachment hole 14 on two spoke dishes 3 be that the hole contraposition is also used bolt with the attachment hole 9 on each blade lobe 6, makes the blade lobe 6 of 13 mutual joggles, a wheel hub 4 and two spoke dishes 3 become a fixing integral body.
Embodiment two
Present embodiment is a kind of axial fan impeller.
Present embodiment comprises turbine disk 2, spoke dish 3, wheel hub 4, blade 5 and petiole 8.
Blade lobe 6 consists of one by blade 5, tenon 7, petiole 8, attachment hole 9 and tongue-and-groove 10, adopts the engineering plastic nylon cast inblock.There is the petiole mounting disc 12 of radially protruding at the middle part of wheel hub 4; Blade 5 is fixed in the petiole mounting disc 12 of wheel hub 4 by petiole 8.Two spoke dishes 3 are sleeved on the both ends of the surface of the petiole mounting disc 12 on the wheel hub 4, and fixing by bolt 1.Turbine disk 2 is sleeved on the wheel hub 4.Turbine disk 2 is to be spliced by 18 turbine disk lobes 6.Dual-side at turbine disk lobe 6 has tenon 7 and tongue-and-groove 10 respectively, and the tenon 7 on each piece turbine disk lobe 6 all embeds in the tongue-and-groove 10 on another adjacent piece turbine disk lobe 6, and socket is assembled into a complete cylindrical shape turbine disk 2 mutually.At the center of each petiole 8 attachment hole 9 is arranged.Be evenly equipped with petiole mounting hole 11 in petiole mounting disc 12, the position of this mounting hole is corresponding with petiolar attachment hole 9.Be evenly distributed with 16 wheel hub attachment holes 13 that this spoke dish 3 is connected with wheel hub 4 at the outer circular edge place of spoke dish 3, be evenly distributed with 18 petiole attachment holes 14 that this spoke dish 3 is connected with petiole 8 at the internal circle edge place of spoke dish 3.
Wheel hub 4 is a cylinder, and the impeller shaft of blower fan passes this cylinder, and the tube inwall has the wedge groove, adopts chock that impeller shaft and wheel hub 4 is fixing.
Spoke dish 3 is ring plates, is used to protect petiole 8 and fixes with wheel hub 4 contrapositions.The external diameter of spoke dish 3 equals the external diameter of petiole mounting disc 12, and is identical with the internal diameter of turbine disk 2, is 1800mm, the internal diameter of spoke dish 3 equals the external diameter of wheel hub 5, is 1000mm, and the thickness of spoke dish 3 is 12mm, two spoke dish 3 folders are pasting impeller plate tube 2, fit with petiole mounting disc 12 again.Wheel hub attachment hole 13 on two spoke dishes 3 and the petiole mounting hole 11 on the wheel hub 5 be the hole contraposition and fix with bolt 1, petiole attachment hole 14 on two spoke dishes 3 be that the hole contraposition is also used bolt with the attachment hole 9 on each blade lobe 6, makes the blade lobe 6 of 18 mutual joggles, a wheel hub 4 and two spoke dishes 3 become a fixing integral body.
Embodiment three
Present embodiment is a kind of axial fan impeller.
Present embodiment comprises turbine disk 2, spoke dish 3, wheel hub 4, blade 5 and petiole 8.
Blade lobe 6 consists of one by blade 5, tenon 7, petiole 8, attachment hole 9 and tongue-and-groove 10, adopts engineering plastics MPPO cast inblock.There is the petiole mounting disc 12 of radially protruding at the middle part of wheel hub 4; Blade 5 is fixed in the petiole mounting disc 12 of wheel hub 4 by petiole 8.Two spoke dishes 3 are sleeved on the both ends of the surface of the petiole mounting disc 12 on the wheel hub 4, and fixing by bolt 1.Turbine disk 2 is sleeved on the wheel hub 4.Turbine disk 2 is to be spliced by 20 turbine disk lobes 6.Dual-side at turbine disk lobe 6 has tenon 7 and tongue-and-groove 10 respectively, and the tenon 7 on each piece turbine disk lobe 6 all embeds in the tongue-and-groove 10 on another adjacent piece turbine disk lobe 6, and socket is assembled into a complete cylindrical shape turbine disk 2 mutually.At the center of each petiole 8 attachment hole 9 is arranged.Be evenly equipped with petiole mounting hole 11 in petiole mounting disc 12, the position of this mounting hole is corresponding with petiolar attachment hole 9.Be evenly distributed with 14 wheel hub attachment holes 13 that this spoke dish 3 is connected with wheel hub 4 at the outer circular edge place of spoke dish 3, be evenly distributed with 20 petiole attachment holes 14 that this spoke dish 3 is connected with petiole 8 at the internal circle edge place of spoke dish 3.
Wheel hub 4 is a cylinder, and the impeller shaft of blower fan passes this cylinder, and the tube inwall has the wedge groove, adopts chock that impeller shaft and wheel hub 4 is fixing.
Spoke dish 3 is ring plates, is used to protect petiole 8 and fixes with wheel hub 4 contrapositions.The external diameter of spoke dish 3 equals the external diameter of petiole mounting disc 12, and is identical with the internal diameter of turbine disk 2, is 2000mm, the internal diameter of spoke dish 3 equals the external diameter of wheel hub 5, is 1300mm, and the thickness of spoke dish 3 is 15mm, two spoke dish 3 folders are pasting impeller plate tube 2, fit with petiole mounting disc 12 again.Wheel hub attachment hole 13 on two spoke dishes 3 and the petiole mounting hole 11 on the wheel hub 5 be the hole contraposition and fix with bolt 1, petiole attachment hole 14 on two spoke dishes 3 be that the hole contraposition is also used bolt with the attachment hole 9 on each blade lobe 6, makes the blade lobe 6 of 20 mutual joggles, a wheel hub 4 and two spoke dishes 3 become a fixing integral body.

Claims (2)

1. axial fan impeller, comprise wheel hub (4), blade (5), petiole (8) and turbine disk (2), it is characterized in that blade lobe (6) consists of one and global formation by blade (5), tenon (7), petiole (8), attachment hole (9) and tongue-and-groove (10); There is the petiole mounting disc (12) of radially protruding at wheel hub (4) middle part; Blade (5) is fixed in the petiole mounting disc (12) of wheel hub (4) by petiole (8); Two spoke dishes (3) are sleeved on the both ends of the surface that petiole mounting disc (12) were gone up and be positioned to wheel hub (4); Turbine disk (2) is to be spliced by many lobes turbine disk lobe (6); Dual-side at turbine disk lobe (6) has tenon (7) and tongue-and-groove (10) respectively, and the tenon (7) on each piece turbine disk lobe (6) all embeds in the tongue-and-groove (10) on another adjacent piece turbine disk lobe (6), and socket is assembled into complete turbine disk (2) mutually; At each petiole (8) center attachment hole (9) is arranged; Be evenly equipped with petiole mounting hole (11) in petiole mounting disc (12), the position of this petiole mounting hole (11) is corresponding with attachment hole (9) on the petiole (8); Be evenly distributed with the wheel hub attachment hole (13) that this spoke dish (3) is connected with wheel hub (4) at the outer circular edge place of spoke dish (3), be evenly distributed with the petiole attachment hole (14) that this spoke dish (3) is connected with petiole (8) at the internal circle edge place of spoke dish (3).
2. axial fan impeller according to claim 1 is characterized in that, the external diameter of the petiole mounting disc (12) on the external diameter of two spoke dishes (3) and the wheel hub (4) is identical.
CN2010106102439A 2010-12-23 2010-12-23 Axial flow fan propeller Expired - Fee Related CN102022379B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105673085A (en) * 2016-04-06 2016-06-15 济南大学 Dovetail-joggled combined type impeller structure
JP2020139498A (en) * 2019-02-22 2020-09-03 Ntn株式会社 Water turbine blade of hydroelectric power generator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104544A1 (en) * 1982-09-27 1984-04-04 Siemens Aktiengesellschaft Axial flow wheel, in particular for axial flow fans
CN2839672Y (en) * 2005-10-17 2006-11-22 铭崙电机工业股份有限公司 Fan blade structure
US20070031257A1 (en) * 2005-08-03 2007-02-08 Mitsubishi Heavy Industries, Ltd. Propeller fan for heat exchanger of in-vehicle air conditioner
CN201554696U (en) * 2009-09-18 2010-08-18 上海风盟通风设备有限公司 Fan blade combined structure
CN201916247U (en) * 2010-12-23 2011-08-03 西北工业大学 Axial-flow blower impeller by utilizing assembly blade wheel disk

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104544A1 (en) * 1982-09-27 1984-04-04 Siemens Aktiengesellschaft Axial flow wheel, in particular for axial flow fans
US20070031257A1 (en) * 2005-08-03 2007-02-08 Mitsubishi Heavy Industries, Ltd. Propeller fan for heat exchanger of in-vehicle air conditioner
CN2839672Y (en) * 2005-10-17 2006-11-22 铭崙电机工业股份有限公司 Fan blade structure
CN201554696U (en) * 2009-09-18 2010-08-18 上海风盟通风设备有限公司 Fan blade combined structure
CN201916247U (en) * 2010-12-23 2011-08-03 西北工业大学 Axial-flow blower impeller by utilizing assembly blade wheel disk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105673085A (en) * 2016-04-06 2016-06-15 济南大学 Dovetail-joggled combined type impeller structure
JP2020139498A (en) * 2019-02-22 2020-09-03 Ntn株式会社 Water turbine blade of hydroelectric power generator

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