CN206487647U

CN206487647U - A kind of low-noise energy-saving flow-mixing blower fan

Info

Publication number: CN206487647U
Application number: CN201720073974.1U
Authority: CN
Inventors: 严建民
Original assignee: Dongguan City Canbes Environmental Ventilation Equipment Co Ltd
Current assignee: Guangdong Quanda environmental protection ventilation equipment Co.,Ltd.
Priority date: 2017-01-19
Filing date: 2017-01-19
Publication date: 2017-09-12
Anticipated expiration: 2027-01-19

Abstract

The utility model discloses a kind of low-noise energy-saving flow-mixing blower fan, including motor, Blower Housing and impeller, the impeller is made up of wheel hub and some blades being arranged on the outer wall of wheel hub, annular array is on wheel hub centered on the central axis of wheel hub for all blades, and the semi-cone angle of wheel hub is 20 ° ~ 45 °；Motor is fixed on the inwall of the front end-plate of protection cylinder, and the output shaft of motor stretches out the front end-plate of protection cylinder and is fixed with wheel hub；The protection cylinder is fixed on the inwall of Blower Housing；Wind-collecting cover is fixed with the leading inside wall of the Blower Housing；Its wheel hub half cone angle is big, and its noise is small, and its motor is fixed in protection cylinder, motor outside some dirts of attachment can so be reduced and it protects cylinder to use detachable connection with Blower Housing, it is removed and installed conveniently, facilitates the maintenance maintenance in later stage, very convenient.

Description

A kind of low-noise energy-saving flow-mixing blower fan

Technical field

The utility model is related to ventilation equipment technical field, more specifically to a kind of low-noise energy-saving flow-mixing blower fan.

Background technology

The ventilation blower that the meridian speed of air-flow gradually increases in impeller channel claims meridian acceleration ventilation blower, and existing meridian adds The outer rim of blade on the impeller hub of fast axial flow blower and the centerline axis parallel of wheel hub, and the Blower Housing of ventilation blower is outer Wall also with centerline axis parallel, its air pressure air flow is less than normal, it is impossible to meet needs.

Meanwhile, the motor of general ventilation blower is directly anchored on support frame, and support frame is fixed on the interior of Blower Housing On wall, and the motor of these ventilation blowers is directly exposed among fluidly air, due to the difference of the working environment of ventilation blower Different, the pollution level of air is also different, in some air pollutions than more serious environment, such as building site, workshop place, by It is directly exposed in motor in air, then with the flowing of air, many rubbish, pollutant in air can be attached to motor Surface influences motor radiating, or is directly entered among motor, influences the normal operation of motor, this can have a strong impact on ventilation The service life of electromechanical machine.

And existing support frame is all welded and fixed, although it is fixed firmly, inconvenient dismounting and change and maintenance.

The content of the invention

The purpose of this utility model and provides a kind of low-noise energy-saving flow-mixing blower fan aiming at the deficiency of prior art, Its wheel hub half cone angle is big, meanwhile, the blade outer rim of impeller and the central axis of wheel hub are in 20 ° ~ 30 ° angles, and its noise is small, together When improve airflow pressure；Its motor is fixed in protection cylinder, can so reduce some dirts of attachment outside motor Thing, reduces influence of the dirt to motor heat dissipation, improves motor service life, and it protects cylinder to be used with Blower Housing Detachable connection, it is removed and installed conveniently, facilitates the maintenance maintenance in later stage, very convenient.

Technology solution of the present utility model is as follows：

A kind of low-noise energy-saving flow-mixing blower fan, including motor, Blower Housing and impeller, the impeller is by wheel hub and setting On the outer wall of wheel hub some blades composition, all blades centered on the central axis of wheel hub annular array on wheel hub, The semi-cone angle of wheel hub is 20 ° ~ 45 °；Motor is fixed on the inwall of the front end-plate of protection cylinder, and the output shaft of motor stretches out Protect the front end-plate of cylinder and be fixed with wheel hub；The protection cylinder is fixed on the inwall of Blower Housing；

Wind-collecting cover is fixed with the leading inside wall of the Blower Housing；

The wind-collecting cover is arc convex ring, and it includes outer arcuate portion and arc portion, and the outer diameter in outer arcuate portion is big In inner diameter, the outer diameter in arc portion is less than inner diameter, the inner diameter in outer arcuate portion and the outer end in arc portion Diameter is molded together, outer rim of the arc portion close to blade.

All blades are weldingly fixed on wheel hub, and the outer rim of blade and the central axis of wheel hub are in 20 ° ~ 30 ° angles.

Slot is formed on the rear end face of the protection cylinder, the front end of slot is close to the front end-plate of protection cylinder, leads Impeller sleeve is in slot, and the outer end of guide-leaf plate is fixed with outer arcuate plate, and the lateral wall of outer arcuate plate is pressed against Blower Housing On madial wall and it is bolted to connection on Blower Housing, the inner of guide-leaf plate is fixed with arc plate, arc plate Lateral wall is pressed against on the madial wall of protection cylinder, and annular ring is pressed against the rear end face of protection cylinder and is bolted to connection On the rear end face of protection cylinder.

It is fixed with multiple elastomer blocks on the front end face of annular ring, elastomer block sleeve is in slot and is pressed against guide-leaf plate Rear surface on.

Guide rod, the guiding that guide rod sleeve has on the front side wall of guide-leaf plate are fixed with the front side wall of the slot Kong Zhong.

The beneficial effects of the utility model are：

Its wheel hub half cone angle is big, meanwhile, the blade outer rim of impeller and the central axis of wheel hub are in 20 ° ~ 30 ° angles, its Noise is small, while improving airflow pressure；Its motor is fixed in protection cylinder, can so be reduced attached outside motor Some dirts, influence of the dirt to motor heat dissipation is reduced, motor service life is improved, and it protects cylinder and blower fan Housing uses detachable connection, and it is removed and installed conveniently, facilitates the maintenance maintenance in later stage, very convenient.

Brief description of the drawings：

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the connection partial structural diagram between protection cylinder of the present utility model and Blower Housing.

Embodiment：

Embodiment：As shown in Fig. 1 to 2, a kind of low-noise energy-saving flow-mixing blower fan, including motor 1, Blower Housing 2 and leaf Wheel 3, the impeller 3 is made up of wheel hub 31 and some blades 32 being arranged on the outer wall of wheel hub 31, and all blades 32 are with wheel hub Annular array is on wheel hub 31 centered on 31 central axis 311, and the semi-cone angle 33 of wheel hub 31 is 20 ° ~ 45 °；Motor 1 is fixed On the inwall of the front end-plate of protection cylinder 4, the output shaft of motor 1 stretches out the front end-plate of protection cylinder 4 and is fixed with wheel hub 31；The protection cylinder 4 is fixed on the inwall of Blower Housing 2；

Wind-collecting cover 5 is fixed with the leading inside wall of the Blower Housing 2；

The wind-collecting cover 5 is arc convex ring, and it includes outer arcuate portion 51 and arc portion 52, the outer end in outer arcuate portion 51 Diameter is more than inner diameter, and the outer diameter in arc portion 52 is less than inner diameter, the inner diameter and inner arc in outer arcuate portion 51 The outer diameter in shape portion 52 is molded together, outer rim of the arc portion 52 close to blade 32.

Further, all blades 32 are weldingly fixed on wheel hub 31, the outer rim 34 of blade 32 and the center of wheel hub 31 Axis 311 is in 20 ° ~ 30 ° angles.

Further, slot 41 is formed on the rear end face of the protection cylinder 4, the front end of slot 41 is to protection cylinder 4 front end-plate is close, and the sleeve of guide-leaf plate 42 is in slot 41, and the outer end of guide-leaf plate 42 is fixed with outer arcuate plate 43, outer arcuate plate 43 lateral wall is pressed against on the madial wall of Blower Housing 2 and is bolted to connection on Blower Housing 2, guide-leaf plate 42 The inner is fixed with arc plate 44, and the lateral wall of arc plate 44 is pressed against on the madial wall of protection cylinder 4, and annular ring 45 is pressed against Protecting the rear end face of cylinder 4 and be bolted to connection on the rear end face of protection cylinder 4.

Further, multiple elastomer blocks 46 are fixed with the front end face of annular ring 45, the sleeve of elastomer block 46 is being inserted In groove 41 and it is pressed against on the rear surface of guide-leaf plate 42.

Further, guide rod 47 is fixed with the front side wall of the slot 41, the sleeve of guide rod 47 is in guide-leaf plate 42 Front side wall in the pilot hole 421 that has.

Operation principle：It is outer rim 34 and the wheel of blade 32 in the horizontal plane because the semi-cone angle 33 of wheel hub 31 is 20 ° ~ 45 ° The central axis 311 of hub 31 is in 20 ° ~ 30 ° angles, so that this blower fan improves air quantity and blast, while reducing noise.

And it protects cylinder 4 to play dust-proof effect, by the bolt for unloading annular ring 45 and connection outer arcuate plate 43, you can Guide-leaf plate 42 is unloaded, so as to which protection cylinder 4 is separated with Blower Housing 2, facilitates maintenance maintenance and cleaning.

Claims

1. a kind of low-noise energy-saving flow-mixing blower fan, including motor（1）, Blower Housing（2）And impeller（3）, it is characterised in that：Institute State impeller（3）By wheel hub（31）Be arranged on wheel hub（31）Outer wall on some blades（32）Composition, all blades（32）With Wheel hub（31）Central axis（311）Centered on annular array in wheel hub（31）On, wheel hub（31）Semi-cone angle（33）For 20 ° ~ 45°；Motor（1）It is fixed on protection cylinder（4）Front end-plate inwall on, motor（1）Output shaft stretch out protection cylinder （4）Front end-plate and be fixed with wheel hub（31）；The protection cylinder（4）It is fixed on Blower Housing（2）Inwall on；

The Blower Housing（2）Leading inside wall on be fixed with wind-collecting cover（5）；

The wind-collecting cover（5）For arc convex ring, it includes outer arcuate portion（51）With arc portion（52）, outer arcuate portion（51）'s Outer diameter is more than inner diameter, arc portion（52）Outer diameter be less than inner diameter, outer arcuate portion（51）The inner it is straight Footpath and arc portion（52）Outer diameter shaping together, arc portion（52）Close to blade（32）Outer rim.

2. a kind of low-noise energy-saving flow-mixing blower fan according to claim 1, it is characterised in that：All blades（32）It is welded and fixed In wheel hub（31）On, blade（32）Outer rim（34）With wheel hub（31）Central axis（311）In 20 ° ~ 30 ° angles.

3. a kind of low-noise energy-saving flow-mixing blower fan according to claim 1, it is characterised in that：The protection cylinder（4）After Slot is formed on end face（41）, slot（41）Front end to protection cylinder（4）Front end-plate it is close, guide-leaf plate（42）Sleeve exists Slot（41）In, guide-leaf plate（42）Outer end be fixed with outer arcuate plate（43）, outer arcuate plate（43）Lateral wall be pressed against blower fan Housing（2）Madial wall on and be bolted to connection in Blower Housing（2）On, guide-leaf plate（42）The inner be fixed with inner arc Shape plate（44）, arc plate（44）Lateral wall be pressed against protection cylinder（4）Madial wall on, annular ring（45）It is pressed against protection Cylinder（4）Rear end face and be bolted to connection protection cylinder（4）Rear end face on.

4. a kind of low-noise energy-saving flow-mixing blower fan according to claim 3, it is characterised in that：Annular ring（45）Front end Multiple elastomer blocks are fixed with face（46）, elastomer block（46）Sleeve is in slot（41）In and be pressed against guide-leaf plate（42）Rear surface On.

5. a kind of low-noise energy-saving flow-mixing blower fan according to claim 3, it is characterised in that：The slot（41）Front side wall On be fixed with guide rod（47）, guide rod（47）Sleeve is in guide-leaf plate（42）Front side wall on the pilot hole that has（421）In.