CN205677859U - A kind of grain-drying diagonal flow fan - Google Patents

A kind of grain-drying diagonal flow fan Download PDF

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Publication number
CN205677859U
CN205677859U CN201620546782.3U CN201620546782U CN205677859U CN 205677859 U CN205677859 U CN 205677859U CN 201620546782 U CN201620546782 U CN 201620546782U CN 205677859 U CN205677859 U CN 205677859U
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China
Prior art keywords
cylinder
motor
flow fan
grain
drying
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Ceased
Application number
CN201620546782.3U
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Chinese (zh)
Inventor
肖奶华
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FUJIAN HUADA ELECTRIC Co Ltd
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FUJIAN HUADA ELECTRIC Co Ltd
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Abstract

This utility model one grain-drying diagonal flow fan, including motor, wind wheel, the first coaxially connected cylinder and the second cylinder of taper, described motor includes main body and is fixed on main body one end and the diameter flange end cap more than transverse slat center-hole diameter, motor and the first cylinder are coaxially disposed, motor flange end cover is locked on the first cylinder by bolt through the through hole in motor flange end cover, wind wheel is fixing with motor transmission shaft to be connected, second cylinder is placed on outside wind wheel, this grain-drying diagonal flow fan, motor connects by flange end cap and the first cylinder are fixing, fixing rear motor and the first cylinder, the axiality of the second cylinder is high, effectively prevent wind wheel moving vane and damage and produce big noise because of motor and not being co-axially mounted contact friction the second cylinder of the first cylinder.

Description

A kind of grain-drying diagonal flow fan
Technical field
This utility model relates to blower fan field, particularly relates to a kind of grain-drying diagonal flow fan.
Background technology
The turnover wind direction of axial flow blower is on same axis, and air quantity is big and blast is little;The turnover wind direction of centrifugal blower is mutual Vertically, air quantity is little and blast is big.For the wind obtaining air quantity, blast is the biggest, occurring in that diagonal flow fan, diagonal flow fan is between axial flow Between blower fan and centrifugal blower, its structure generally includes interconnective forward and backward cylinder, wind wheel and motor, rear cylinder body include interior, Outer cylinder body, motor is fixed on the inner barrel transverse slat of rear cylinder body, and wind wheel is fixed on motor transmission shaft and is positioned at conveyor front barrel.
Existing diagonal flow fan, for being fixed on inner barrel by motor, its motor case periphery typically circumferentially stretches out Having some boss with through hole, bolt locks in inner barrel connecting plate through boss through hole, it is achieved fixing of motor, or at inner core Internal welding T-shaped or the support of " π " font, be then fixed on motor on support.The existing of above-mentioned diagonal flow fan motor is fixed Mode, has the disadvantages that 1) the stretch out motor manufacturing of boss of casing is loaded down with trivial details, boss negligible amounts, and usually 3~4, And the machining accuracy of through hole is low on boss, bolt is generally of certain interval through boss through hole, when this makes blower fan work, and a side Face motor and the wind wheel shake being fixed on motor transmission shaft are strong, and noise is big, on the other hand, at the boss as fixing point In the case of negligible amounts, the central point that motor is fixed is easily generated skew, causes motor and upper wind wheel thereof different from forward and backward cylinder Axle, so, in wind wheel rotation process, wind wheel fan blade easily contacts conveyor front barrel and produces friction therewith, in turn results in wind wheel fan blade Damage;2) inner core body wall is arcwall face, T-shaped or " π " font support fixing because of difficulty, and fixing after T-shaped or " π " font support water The depth of parallelism of plane is difficult to be guaranteed, and then causes guaranteeing axiality high between the fixing rear and forward and backward cylinder of motor.
Summary of the invention
The purpose of this utility model is to provide a kind of grain-drying diagonal flow fan.
For realizing the purpose of this utility model, now describe its technical scheme in detail: a kind of grain-drying diagonal flow fan, including Second cylinder of the first cylinder, motor, wind wheel and taper, the end face of the big one end of the second barrel diameter of taper and the first cylinder Being fixedly and coaxially connected, described first cylinder includes the outer cylinder body of one, is positioned at outer cylinder body the inner core with outer cylinder body concentric Body, some stator blades and the transverse slat with centre bore, the ring-type sky that described some stator blade spoke-like are distributed between inside and outside cylinder In and fixing with inside and outside cylinder is connected, described transverse slat frame is fixed in the inwall of inner barrel, and described motor includes main body and fixes Be more than the flange end cap of transverse slat center-hole diameter in main body one end and diameter, described motor and the first cylinder are coaxially disposed, motor Flange end cap is locked on the transverse slat of the first cylinder by the first bolt through the through hole in motor flange end cover, and described wind wheel includes cone The wheel hub of shape and along the equally distributed moving vane of circumference of hub, the big one end of described hub diameter is near the first cylinder, wheel hub Fixing with motor transmission shaft and be connected, described second cylinder is placed on outside wind wheel.
Further, the through hole of flange end cap is screwed hole.It is higher for the through hole of screwed hole and the fitness of the first bolt, Avoid there is gap between through hole and the first bolt, affect the axiality with the first cylinder after motor is installed.
Further, described wind wheel hub is fixed with sealing plate near one end of the first cylinder.Setting of wheel hub upper sealing panel Putting, on the one hand avoid dust to amass in wheel hub, on the other hand realize the reinforcing of wheel hub, the circularity making wheel hub is more preferable.
Further, described first cylinder transverse slat is provided with dust cleaner, and described dust cleaner contacts with hub seal plate. During work, the laying dust on hub seal plate in relative rotation is cleaned with water by dust cleaner, avoids further on hub seal plate Laying dust, it is ensured that wind wheel rotate balance.
Further, the end face indent that described hub diameter is little is arranged.End face indent is arranged can make wheel hub intensity more preferably.
Further, described moving vane and the second cylinder inboard wall are smaller than 5mm.Moving vane and the second cylinder inboard wall are little Spacing, can make the blast in the second cylinder bigger, in hgher efficiency.
Further, described stator blade is away from one end tangent line of the second cylinder and the first cylinder axis parallel, stator blade Angle between two ends connection and the first cylinder axial line is less than 20 °.This setting, it can be ensured that when stator blade guides, resistance was unlikely to Greatly, and cause the loss of wind energy, and increase motor load.
Further, one end that hub diameter is little is connected by fixing nail and the inner flange being positioned at wheel hub are fixing, interior Flange is bonded with motor transmission shaft, and the outside of inner flange is provided with pad, and described pad is respectively by the second bolt and some the Three bolts are fixed with motor transmission shaft, inner flange and are connected.Making wheel hub fix with inner flange by some fixing nails, inner flange is fixed Kong Duo, the fixation of wheel hub and inner flange, then inner flange is bonded with motor transmission shaft, respectively with motor transmission shaft, interior Flange fixes the pad axial limiting for inner flange of connection, prevents motor transmission shaft from driving inner flange and wind wheel to rotate Cheng Zhong, moves outside inner flange and departs from motor transmission shaft, this structure, compares and by single bolt, wheel hub is directly fixed on motor and passes The attachment structure of moving axis, it can make the fixing more firm of wind wheel, and is prevented effectively from the most single bolt when fixing, because of bolt failure And cause blower fan to highlight the appearance of shutdown situation.
Further, described first cylinder body outer wall is provided with rosette.So that blower fan wiring is more convenient, safety is higher.
This utility model grain-drying diagonal flow fan, motor connects by the transverse slat of flange end cap and the first cylinder is fixing, Flange end cap is while motor encapsulates, it is achieved the assembling of motor and inner barrel inner horizontal plate is fixed, and it effectively prevent tradition The setting up of electric motor mounting structure such as boss, T-shaped, " π " font support etc. in blower fan, this diagonal flow fan, through the in flange end cap One bolt locks in transverse slat, can complete the installation of motor, and its installation is very convenient, and the manufacture of flange end cap is ripe, logical on it Hole machined precision is high, and the cooperation of through hole and the first bolt is closer, fixing rear motor and the first cylinder, the axiality of the second cylinder Height, effectively prevent wind wheel moving vane and damages because of motor and not being co-axially mounted contact friction the second cylinder of the first cylinder and produce Raw big noise, the quantity that another generally flange end covers through hole is big, and then motor to be fixed on transverse slat more stable, vibrate during work Little.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of a kind of embodiment of this utility model;
Fig. 2 is the left view structural representation of a kind of embodiment of this utility model;
Fig. 3 is the right TV structure schematic diagram of a kind of embodiment of this utility model;
Fig. 4 is this utility model Fig. 3 section structure schematic diagram along line A-A;
Fig. 5 is the structure for amplifying schematic diagram of local B in this utility model Fig. 4;
Fig. 6 is inner barrel and the plan structure signal of stator blade of the first cylinder of a kind of embodiment of this utility model Figure.
Detailed description of the invention
Below in conjunction with the accompanying drawings the better embodiment of this utility model grain-drying diagonal flow fan is described in detail:
As shown in Figures 1 to 6, this utility model grain-drying diagonal flow fan, including the first cylinder 1, motor 2, wind wheel 3 and Second cylinder 4 of taper, the big one end of the second cylinder 4 diameter of taper is fixedly and coaxially connected with the end face of the first cylinder 1, described First cylinder 1 includes the outer cylinder body 11 of one, is positioned at the inner barrel 12 of outer cylinder body 11, some stator blades 13 and with centre bore The transverse slat 14 of 141, described some stator blade 13 spoke-like be distributed in the annulus between inside and outside cylinder (12,11) Nei and with interior, Outer cylinder body (12,11) is fixing to be connected, and described transverse slat 14 frame is fixed in the inwall of inner barrel 12, described motor 2 include main body 21 and It is fixed on main body 21 one end and the diameter flange end cap 22 more than transverse slat centre bore 141 diameter, described motor 2 and the first cylinder 1 Being coaxially disposed, motor flange end cover 22 is locked in the first cylinder by the first bolt 222 through the through hole 221 in motor flange end cover 22 On the transverse slat 14 of 1, described wind wheel 3 include taper wheel hub 31 and along wheel hub 31 even circumferential distribution moving vane 32, described The big one end of wheel hub 31 diameter is near the first cylinder 1, and wheel hub 31 is fixing with motor transmission shaft 23 to be connected, and described second cylinder 4 overlaps Outside wind wheel 3.
The through hole 221 of flange end cap 22 is screwed hole.For the through hole 221 of screwed hole and the first bolt 222 fitness more High, it is to avoid between through hole 221 and the first bolt 222, to there is gap, affect the axiality with the first cylinder 1 after motor 2 is installed.
As shown in Figures 3 to 5, described wind wheel hub 31 is fixed with sealing plate 5 near one end of the first cylinder 1.Wheel hub 31 The setting of upper sealing panel 5, on the one hand avoids dust to amass in wheel hub 31, on the other hand realizes the reinforcing of wheel hub 31, makes wheel hub 31 Circularity more preferable.
As shown in Figure 4, described first cylinder transverse slat 14 is provided with dust cleaner 51, described dust cleaner 51 and hub seal Plate 5 contacts.During work, the laying dust on hub seal plate 5 in relative rotation is cleaned with water by dust cleaner 51, avoids wheel further Laying dust on hub sealing plate 14, it is ensured that the balance that wind wheel 3 rotates.
As shown in Figure 2 and Figure 4, the end face indent that described wheel hub 31 diameter is little is arranged.End face indent is arranged can make wheel hub 31 Intensity is more preferably.
As shown in Figure 4, described moving vane 32 and the second cylinder 4 inwall spacing H are less than 5mm.Moving vane 32 and the second cylinder 4 The spacing that inwall is little, can make the blast in the second cylinder 4 bigger, in hgher efficiency.
As shown in Figure 6, described stator blade 13 is away from one end tangent line of the second cylinder 4 and the first cylinder 1 axis parallel, quiet Angle [alpha] between the connection of blade 13 two ends and the first cylinder 1 axial line is less than 20 °.This setting, it can be ensured that hinder when stator blade 13 guides Power is unlikely to excessive, and causes the loss of wind energy, and increases motor 2 and load.
As shown in Fig. 2, Fig. 4 and Fig. 5, one end that wheel hub 31 diameter is little is followed closely 33 by fixing and is positioned at the one of wheel hub 31 Flange 34 is fixing to be connected, and inner flange 34 is bonded with motor transmission shaft 23, and the outside of inner flange 34 is provided with pad 35, described pad 35 are fixed by the second bolt 36 and some 3rd bolts 37 be connected with motor transmission shaft 23, inner flanges 34 respectively.By some Fixing nail 33 makes wheel hub 31 fix with inner flange 34, and inner flange 34 fixing hole is many, wheel hub 31 and the fixation of inner flange 34, and Rear inner flange 34 is bonded with motor transmission shaft 23, uses with motor transmission shaft 23, the fixing pad 35 being connected of inner flange 34 respectively In the axial limiting of inner flange 34, prevent motor transmission shaft 23 from driving in inner flange 34 and wind wheel 3 rotation process, inner flange 34 Outer shifting and depart from motor transmission shaft 23, compare and by single bolt, wheel hub 31 be directly fixed on the connection of motor transmission shaft 23 and tie Structure, this structure, can make the fixing more firm of wind wheel 3, and be prevented effectively from the most single bolt when fixing, cause because of bolt failure Blower fan highlights the appearance of shutdown situation.
As shown in Figure 1 to Figure 3, described first cylinder 1 outer wall is provided with rosette 6.So that blower fan wiring is more convenient, safety Property is higher.
This utility model grain-drying diagonal flow fan, stator blade 13 1 aspect of the first cylinder 1 is used for wind-guiding, on the other hand Realize the fixing of inner barrel 12;The inner barrel 12 of the first cylinder 1 and transverse slat 14 fixing for motor 2, when motor 2 is fixed, will Motor 2 is placed in inner barrel 12, and the first bolt 222 is through the horizontal stroke locking in the first cylinder 1 after the through hole 221 of motor flange end cover 22 Plate 14;Second cylinder 4 of taper compares column construction, and in it, blast is bigger.During work, motor 2 drives wind wheel 3, and at movable vane Forming wind under the effect of sheet 32, wind is entered by one end that the second cylinder 4 diameter is little, in the second cylinder 4, blast is big and the wind that rotates and Between the inside and outside cylinder (12,11) of rear entrance the first cylinder 1, under the guide effect of stator blade 13, form big axial of air quantity Wind.
This utility model grain-drying diagonal flow fan, motor 2 is fixed by the transverse slat 14 of flange end cap 22 and the first cylinder 1 Connecting, flange end cap 14 is while motor encapsulates, it is achieved the assembling of motor 2 and inner barrel 12 inner horizontal plate 14 is fixed, and it has Effect avoids setting up of electric motor mounting structure such as boss in conventional fan, T-shaped, " π " font support etc., this diagonal flow fan, flange Locking in transverse slat 14 through the first bolt 222 in end cap 22, can complete the installation of motor 2, its installation is very convenient, and flange end The manufacture of lid 22 is ripe, and on it, through hole 221 machining accuracy is high, and through hole 221 is closer, after fixing with coordinating of the first bolt 222 The axiality of motor 2 and first cylinder the 1, second cylinder 4 is high, effectively prevent wind wheel moving vane 32 because of motor 2 and the first cylinder 1 Be not co-axially mounted contact friction the second cylinder 4 and damage and produce big noise, through hole 221 on another the most usual flange end cap 22 Quantity is big, so motor 2 to be fixed on transverse slat 14 more stable, vibrate little during work.
This utility model grain-drying diagonal flow fan, described first cylinder 1 and the second cylinder 4 can be fixing even by two flanges Connecing, also can set diaphragm seal (not shown) between two flanges, to be prevented effectively from air quantity in blower fan, blast reduces because of sealing problem; When described inner flange 34 fixing hole is threadless through hole, described fixing nail 33 is rivet, and inner flange 34 fixing hole is that screw thread leads to Kong Shi, described fixing nail 33 is screw.

Claims (9)

1. a grain-drying diagonal flow fan, including the second cylinder of the first cylinder, motor, wind wheel and taper, the second of taper The big one end of barrel diameter is fixedly and coaxially connected with the end face of the first cylinder, and described first cylinder includes the outer cylinder body of one, position In outer cylinder body and with the inner barrel of outer cylinder body concentric, some stator blades and the transverse slat with centre bore, described some stator blades Sheet spoke-like is distributed in the annulus between inside and outside cylinder Nei and fixes with inside and outside cylinder and is connected, and described transverse slat frame is fixed in inner core The inwall of body, it is characterised in that: described motor includes main body and to be fixed on main body one end and diameter straight more than transverse slat centre bore The flange end cap in footpath, described motor and the first cylinder are coaxially disposed, and motor flange end cover is passed motor flange end by the first bolt The through hole covered locks on the transverse slat of the first cylinder, and described wind wheel includes the wheel hub of taper and equally distributed along circumference of hub Moving vane, the big one end of described hub diameter is near the first cylinder, and wheel hub is fixing with motor transmission shaft to be connected, described second cylinder It is placed on outside wind wheel.
Grain-drying diagonal flow fan the most according to claim 1, it is characterised in that: the through hole of flange end cap is screwed hole.
Grain-drying diagonal flow fan the most according to claim 1, it is characterised in that: described wind wheel hub is near the first cylinder One end be fixed with sealing plate.
Grain-drying diagonal flow fan the most according to claim 3, it is characterised in that: described first cylinder transverse slat is provided with clearly Dirt device, described dust cleaner contacts with hub seal plate.
Grain-drying diagonal flow fan the most according to claim 1, it is characterised in that: the end face indent that described hub diameter is little Arrange.
Grain-drying diagonal flow fan the most according to claim 1, it is characterised in that: described moving vane and the second cylinder inboard wall It is smaller than 5mm.
Grain-drying diagonal flow fan the most according to claim 1, it is characterised in that: described stator blade is away from the second cylinder One end tangent line and the first cylinder axis parallel, the angle between the connection of stator blade two ends and the first cylinder axial line is less than 20 °.
Diagonal flow fan the most according to claim 1, it is characterised in that: one end that hub diameter is little is followed closely by fixing and be positioned at An inner flange in wheel hub is fixing to be connected, and inner flange is bonded with motor transmission shaft, and the outside of inner flange is provided with pad, described pad Sheet is fixed with motor transmission shaft, inner flange by the second bolt and some 3rd bolts respectively and is connected.
Grain-drying diagonal flow fan the most according to claim 1, it is characterised in that: described first cylinder body outer wall is provided with and connects Line box.
CN201620546782.3U 2016-06-07 2016-06-07 A kind of grain-drying diagonal flow fan Ceased CN205677859U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620546782.3U CN205677859U (en) 2016-06-07 2016-06-07 A kind of grain-drying diagonal flow fan

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Application Number Priority Date Filing Date Title
CN201620546782.3U CN205677859U (en) 2016-06-07 2016-06-07 A kind of grain-drying diagonal flow fan

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CN205677859U true CN205677859U (en) 2016-11-09

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105840536A (en) * 2016-06-07 2016-08-10 福建华大电机有限公司 Grain drying diagonal fan
CN110513327A (en) * 2018-05-22 2019-11-29 美的集团股份有限公司 Diagonal flow fan and household appliance
CN111577626A (en) * 2020-05-27 2020-08-25 江苏超惠特种风机有限公司 Special fan convenient to maintenance and convenient dismouting
CN114876880A (en) * 2022-07-11 2022-08-09 沈阳透平机械股份有限公司 Assembling method of vertically split centrifugal compressor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105840536A (en) * 2016-06-07 2016-08-10 福建华大电机有限公司 Grain drying diagonal fan
CN110513327A (en) * 2018-05-22 2019-11-29 美的集团股份有限公司 Diagonal flow fan and household appliance
CN110513327B (en) * 2018-05-22 2021-03-02 美的集团股份有限公司 Diagonal flow fan and household electrical appliance
CN111577626A (en) * 2020-05-27 2020-08-25 江苏超惠特种风机有限公司 Special fan convenient to maintenance and convenient dismouting
CN111577626B (en) * 2020-05-27 2022-06-21 上海德惠特种风机有限公司 Special fan convenient to maintenance and convenient dismouting
CN114876880A (en) * 2022-07-11 2022-08-09 沈阳透平机械股份有限公司 Assembling method of vertically split centrifugal compressor

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C14 Grant of patent or utility model
GR01 Patent grant
IW01 Full invalidation of patent right
IW01 Full invalidation of patent right

Decision date of declaring invalidation: 20171114

Decision number of declaring invalidation: 33737

Granted publication date: 20161109