CN202746240U - Large dark transmission axial-flow type air blower set - Google Patents

Large dark transmission axial-flow type air blower set Download PDF

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Publication number
CN202746240U
CN202746240U CN 201220445866 CN201220445866U CN202746240U CN 202746240 U CN202746240 U CN 202746240U CN 201220445866 CN201220445866 CN 201220445866 CN 201220445866 U CN201220445866 U CN 201220445866U CN 202746240 U CN202746240 U CN 202746240U
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China
Prior art keywords
motor
diffuser
urceolus
outlet
conducting element
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Expired - Fee Related
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CN 201220445866
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Chinese (zh)
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石福军
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Individual
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Individual
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Abstract

The utility model relates to a large axial-flow type blower and a matched motor, belongs to the field of manufacturing technique, and particularly provides a large dark transmission axial-flow type air blower set. The large dark transmission axial-flow type air blower set comprises a main body air duct (1), an inlet flow guide piece (2), an outlet flow guide piece (3), a flow guide cone (4), a blower rotor (5), a bearing box (6), a motor (7), a diffuser outer cylinder (8), a motor support plate (9), an inlet box (10), a diffuser core cylinder (11), a cooling fan (12) and a current collector (13), and is characterized in that the flow guide cone (4) is arranged at the front end of the inlet flow guide piece (2); the bearing box (6) is supported by the outlet flow guide piece (3); the motor (7) is arranged on the front section of the diffuser outer cylinder (8); and the shaft end half coupler of the motor (7) is connected with that of the blower rotor (5). The axial-flow type air blower set is short in shaft system, light in rotor weight, low in cost, stable in operation, low in power consumption, small in noise and high in efficiency.

Description

A kind of large-scale dark transmission axial fan group
Technical field
The utility model relates to large-scale axial flow type blower fan and necessary electromotor manufacturing technology field thereof, exactly is a kind of large-scale dark transmission axial fan group.
Background technique
Prior art large-scale axial flow type air-supply unit mainly is comprised of motor, rotor general assembly, bearing pack, inlet box, main body air duct, jack shaft and coupling, diffuser, lubricating fitting and pipeline, moving blade regulating device, flexible shaft coupling, base, instrumentation, silencing apparatus etc.Large-scale axial flow type air-supply unit is owing to the needs of axial air inlet/outlet structure, and its motor haves no alternative but be forced to be installed in the outside of inlet box, and motor reel is connected with coupling by jack shaft with fan shaft, therefore its kind of drive belongs to the bright kind of drive.The shortcoming that prior art exists is: axial blast unit axle system is long, and the natural frequency of vibration is low, easily enters resonance region, causes vibrating excessive and damage equipment; Jack shaft and coupling also make the gross weight of axial fan group rotor increase, thereby its power consumption is increased; The inlet box complex structural designs exists gas to separate and backflow phenomenon near the inlet box outlet suction surface, causes overall efficiency to descend, and has also aggravated the aerodynamic noise of machine simultaneously, approximate 90.The air-flow of turning is difficult to abundant acceleration and namely will enters the wind motor leaf entrance in shorter distance, its energy loss is larger, if the blower fan load is excessive, even can cause the successional destruction of air-flow, makes blower fan generation surge; The thick intermediate shaft tube that is enclosed within on the jack shaft passes inlet box, and the fans entrance air-flow is disturbed and hinders, the uniformity variation of blower fan air intake, the aerodynamic characteristics variation of blower fan, noise increases, and performance reduces.
Summary of the invention
It is the large-scale dark transmission axial fan group shorter, that air inlet is smooth, efficient is high, power consumption is low, noise is little, stable that the technical problems to be solved in the utility model provides a kind of axle.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of large-scale dark transmission axial fan group comprises: main body air duct (1), entrance guiding spare (2), outlet conducting element (3), flow deflecting cone (4), fan rotor (5), bearing housing (6), motor (7), diffuser urceolus (8), motor support plate (9), inlet box (10), diffuser core cylinder (11), cooling fan (12), slip ring (13), it is characterized in that being provided with in the main body air duct (1) entrance guiding spare (2) and outlet conducting element (3), fan rotor (5) is positioned between entrance guiding spare (2) and the outlet conducting element (3), the front end of entrance guiding spare (2) is provided with flow deflecting cone (4), embodiment 1 bearing housing (6) is supported by fan outlet conducting element (3), motor (7) is positioned at the inner leading portion of diffuser urceolus (8), diffuser urceolus (8) bottom is provided with motor support plate (9), motor (7) is fixed on the motor support plate (9), the axle head half-coupling of motor (7) is connected with the axle head half-coupling of fan rotor (5), before the main body air duct (1), the rear end is connected 8 with slip ring (13) outlet with the diffuser urceolus respectively) entrance is connected, motor (7) free end is adjacent with diffuser core cylinder (11), diffuser core cylinder (11) is supported in the back segment of diffuser urceolus (8) by fagging, be provided with cooling fan (12) near motor (7) in the diffuser core cylinder (11), inlet box (10) outlet is provided with the straight-run of pipe section, this straight length is connected with slip ring (13) entrance, and slip ring (13) outlet is connected with fans entrance conducting element (2).
The beneficial effect that the utility model has compared with the prior art is: the air-supply shaft system of unit shortens, and natural frequency improves, thereby avoids contingent resonance phenomenon; Axle system shortens also makes the air-supply turbine generator inertia reduce, and power consumption reduces; Motor arrangement is in the diffuser urceolus, part has substituted the function of prior art axial blast unit diffuser core cylinder, thereby the length of diffuser core cylinder will reduce, add the cancellation of jack shaft and coupling, jack shaft sleeve pipe and motor cooling system, large-scale axial flow type air-supply unit consumes steel and will greatly reduce, and cost will reduce greatly; The design of inlet box outlet straight length and the installing of entrance guiding spare flow deflecting cone can reduce the unsteady perturbation of fans entrance air-flow, reduce aerodynamic noise, prevent that draught fan impeller rotating stall and blower fan stall margin from dwindling, and improve fan efficiency; The gas cooling that the motor that is positioned at the diffuser urceolus also can be carried by blower fan, so the normal operation of motor no longer includes the cooling energy consumption, moreover, the heating value of motor has also obtained recycling; Motor is closed in the diffuser urceolus, and the running noises of whole air-supply unit also can reduce.Embodiment 2 is because fan rotor adopts two end supports, and bearing load relatively disperses, and can improve its operating conditions, improves the stability of its life-span and support.Embodiment 1 bearing housing is located at the wind motor leaf outlet can obtain preferably air cooling effect.
Description of drawings
Fig. 1 is the utility model embodiment 1 vertical cut-away diagram.
Fig. 2 is the utility model embodiment 2 vertical cut-away diagram.
Among the figure: 1-main body air duct, 2-entrance guiding spare, 3-exports conducting element, 4-flow deflecting cone, 5-fan rotor, 6-bearing housing, 7-motor, 8-diffuser urceolus, 9-motor support plate, 10-inlet box, 11-diffuser core cylinder, 12-cooling fan, 13-slip ring.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, illustrated embodiment only is used for explaining, is not be used to limiting scope of the present utility model.All any modifications of within thought of the present utility model and principle, making, improve, be equal to replacement etc., all should be included within the protection domain of the present utility model.
Embodiment 1: see Fig. 1, a kind of large-scale dark transmission axial fan group, comprise main body air duct (1), entrance guiding spare (2), outlet conducting element (3), flow deflecting cone (4), fan rotor (5), bearing housing (6), motor (7), diffuser urceolus (8), motor support plate (9), inlet box (10), diffuser core cylinder (11), cooling fan (12), slip ring (13), it is characterized in that being provided with in the main body air duct (1) entrance guiding spare (2) and outlet conducting element (3), fan rotor (5) is positioned between entrance guiding spare (2) and the outlet conducting element (3), the front end of entrance guiding spare (2) is provided with flow deflecting cone (4), bearing housing (6) is supported by fan outlet conducting element (3), motor (7) is positioned at the leading portion of diffuser urceolus (8), diffuser urceolus (8) bottom is provided with motor support plate (9), motor (7) is fixed on the motor support plate (9), the axle head half-coupling of motor (7) is connected with the axle head half-coupling of fan rotor (5), before the main body air duct (1), the rear end is connected 8 with slip ring (13) outlet with the diffuser urceolus respectively) entrance is connected, motor (7) free end is adjacent with diffuser core cylinder (11), diffuser core cylinder (11) is supported in the back segment of diffuser urceolus (8) by the fagging (not shown), be provided with cooling fan (12) near motor (7) in the diffuser core cylinder (11), inlet box (10) outlet is provided with straight-run of pipe section (part illustrates and is straight length among the figure) and is connected with slip ring (13) entrance, and slip ring (13) outlet is connected with fans entrance conducting element (2) again.
Referring to Fig. 1, during the operation of axial blast unit, after ambient air enters inlet box (10) after by the silencing apparatus (not shown) and compiles through slip ring (13) through entrance guiding spare (2), under the effect of the movable vane that fan rotor (5) wheel hub is installed, mechanical energy is converted into fluid energy.
Referring to Fig. 1, on the wall of inlet box (10), also be provided with the manhole door (not shown), can enter inlet box (10) after opening manhole door, pull down flow deflecting cone (4) after, can carry out the Inspection and maintenance of blower fan hydraulic regulating device; Untie the connecting bolt of main body air duct (1) horizontal flange, then first assembly of the upper half-sum outlet guide stream of the entrance guiding spare (2) that hangs out main body air duct (1) and be connected as a single entity with it part (3) can carry out the service work of fan rotor (5) or bearing housing (6).
Referring to Fig. 1, motor support plate (9) is positioned at same plane with second load-bearing blade of outlet conducting element (3) as far as possible, to reduce obstruction and the disturbance to the wind motor leaf exit flow.
Referring to Fig. 1, in order to further facilitate the eliminating of motor (7) generic failure, diffuser urceolus (8) front segment structure that comprises motor (7) has been carried out particular design, specifically: second of the diffuser urceolus (8) at installation motor (7) position forms (not shown) by detachable guide plate, described guide plate by with diffuser urceolus (8) horn-like housing both sides plumb cut and seating plane, the (not shown) that housing surrounds that both ends of the surface surround, its cross section of described diffuser urceolus (8) leading portion is the composite figure of circular upper part and square lower part.The plumb cut of a side is provided with the access door (not shown) therein, open access door, second the detachable guide plate of motor (7) diffuse underneath device urceolus (8) of dismantling, the maintainer can implement service work to motor (7) in the space that increases.Also can be as required, hang out diffuser urceolus (8) first, untie clamping bolt and coupling bolt between motor (7) and the motor support plate (9), motor (7) is lifted by crane maintenance.
Ventilation when being installed on the interior cooling fan (12) of diffuser core cylinder (11) for the rear separately preliminary operation of motor (7) maintenance is cooled off, and when gas fan normally moved, cooling fan (12) did not move.
Referring to Fig. 1, Fig. 2, embodiment 2 is substantially identical with embodiment 1, difference is that embodiment's 2 fan rotors (5) adopt movable vane to import and export two supports, bearing housing (6) is provided with 2 of front and back, front bearing box (6) by its supports support on fans entrance conducting element (2), after the bearing box (6) by its supports support on fan outlet conducting element (3); The guide vane of fan outlet conducting element (3) is short than embodiment 1 design also, and motor (7) transmission section might extend in the main body air duct (1).

Claims (6)

1. one kind large-scale dark transmission axial fan group comprises: main body air duct (1), entrance guiding spare (2), outlet conducting element (3), flow deflecting cone (4), fan rotor (5), bearing housing (6), motor (7), diffuser urceolus (8), motor support plate (9), inlet box (10), diffuser core cylinder (11), cooling fan (12), slip ring (13), it is characterized in that being provided with in the main body air duct (1) entrance guiding spare (2) and outlet conducting element (3), fan rotor (5) is positioned between entrance guiding spare (2) and the outlet conducting element (3), motor (7) is positioned at the inner leading portion of diffuser urceolus (8), diffuser urceolus (8) bottom is provided with motor support plate (9), motor (7) is fixed on the motor support plate (9), and the axle head half-coupling of motor (7) is connected with the axle head half-coupling of fan rotor (5).
2. a kind of large-scale dark transmission axial fan group as claimed in claim 1 is characterized in that: the front and back ends of described main body air duct (1) is connected 8 with slip ring (13) outlet with the diffuser urceolus respectively) entrance is connected, motor (7) free end is adjacent with diffuser core cylinder (11), diffuser core cylinder (11) is supported in the back segment of diffuser urceolus (8) by fagging, be provided with cooling fan (12) near motor (7) in the diffuser core cylinder (11).
3. a kind of large-scale dark transmission axial fan group as claimed in claim 1 is characterized in that: the front end of described entrance guiding spare (2) is provided with flow deflecting cone (4).
4. a kind of large-scale dark transmission axial fan group as claimed in claim 1 is characterized in that: the bearing housing described in the embodiment 1 (6) is supported by fan outlet conducting element (3), bearing housing described in the embodiment 2 (6) have before and after 2, respectively by its supports support on fans entrance conducting element (2) and fan outlet conducting element (3).
5. a kind of large-scale dark transmission axial fan group as claimed in claim 1 is characterized in that: described inlet box (10) outlet is provided with the straight-run of pipe section, this straight length is connected with slip ring (13) entrance, and slip ring (13) outlet is connected with fans entrance conducting element (2).
6. a kind of large-scale dark transmission axial fan group as claimed in claim 1 is characterized in that: second of the diffuser urceolus (8) at described installation motor (7) position is comprised of detachable guide plate, described guide plate is surrounded by the housing that surrounds with diffuser urceolus (8) horn-like housing both sides plumb cut and seating plane, both ends of the surface, the plumb cut of a side is provided with access door therein, and its cross section of described diffuser urceolus (8) leading portion is the composite figure of circular upper part and square lower part.
CN 201220445866 2012-08-24 2012-08-24 Large dark transmission axial-flow type air blower set Expired - Fee Related CN202746240U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220445866 CN202746240U (en) 2012-08-24 2012-08-24 Large dark transmission axial-flow type air blower set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220445866 CN202746240U (en) 2012-08-24 2012-08-24 Large dark transmission axial-flow type air blower set

Publications (1)

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CN202746240U true CN202746240U (en) 2013-02-20

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104110395A (en) * 2014-06-24 2014-10-22 成都绿迪科技有限公司 Draught fan
WO2021228169A1 (en) * 2020-05-15 2021-11-18 追觅科技(上海)有限公司 Fan and electric hair drier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104110395A (en) * 2014-06-24 2014-10-22 成都绿迪科技有限公司 Draught fan
CN104110395B (en) * 2014-06-24 2017-02-08 山东省六府能源科技有限公司 Draught fan
WO2021228169A1 (en) * 2020-05-15 2021-11-18 追觅科技(上海)有限公司 Fan and electric hair drier
JP7359971B2 (en) 2020-05-15 2023-10-11 追▲べき▼科技(上海)有限公司 Blower and hair dryer

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130220

Termination date: 20150824

EXPY Termination of patent right or utility model