CN206309620U - Centrifugal blower - Google Patents
Centrifugal blower Download PDFInfo
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- CN206309620U CN206309620U CN201621362250.0U CN201621362250U CN206309620U CN 206309620 U CN206309620 U CN 206309620U CN 201621362250 U CN201621362250 U CN 201621362250U CN 206309620 U CN206309620 U CN 206309620U
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- motor
- bearing
- motor shaft
- end cap
- centrifugal blower
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Abstract
The utility model is related to a kind of centrifugal blower without transmission group, the blower fan to omit transmission group part, and motor part is directly installed as one with impeller, motor underframe.The utility model is by motor, the motor-driven motor shaft, the bearing being engaged with the motor shaft, impeller, spiral case and motor underframe composition installed in motor shaft one end, bearing outside is on the outer face of electric motor end cap, bearing is fitted into bearing outside, and bearing gland is bolted on electric motor end cap；Sealing ring is housed at bearing gland axis hole position and motor shaft cooperation, and closing is bolted with sealing gland；Sealing ring is housed at end cap outer face dress bearing outside with motor shaft cooperation, sealing ring is housed at the axis hole position of the end cap being connected with electric machine casing and motor shaft cooperation.The utility model significantly saves equipment occupation space on the basis of lifting means reliability, makes both having can be used as normal temperature blower fan without transmission group centrifugal blower and also being used as high-temperature blower for same structure, reduces equipment production cost.
Description
Technical field
The present invention relates to a kind of centrifugal blower, and in particular to a kind of centrifugal blower without transmission group.
Background technology
The centrifugal blower that currently there are, is by impeller, three major part compositions of transmission group and motor mostly.Wherein
The effect of transmission group is the stress for sharing motor shaft and bearing, it is ensured that the reliability of whole blower fan structure, but transmission group this body
Larger, the heavier-weight of product, and equipment production cost can be taken, therefore market occurs in that one kind by shortening propeller shaft length, and
The Lightweight centrifugal fan that transmission group and electric motor stand are directly connected to, this centrifugal blower can to a certain extent reduce biography
The space that dynamic group takes, and equipment production cost is reduced, but its essence is that transmission group unites two into one with electric motor stand, this group
Although conjunction mode saves the space of transmission group occupancy, it is likely that causing electric motor stand to take up room increase, and this design
Transmission group part is not omitted completely, and taking up room with production cost for reducing is than relatively limited.In the market
There is a kind of Small Centrifugal Fan, this centrifugal blower eliminates transmission group part, directly motor is connected with impeller, but this
The centrifugal blower of type is the normal temperature blower fan of low-power, and its bearing cannot carry the work of high-power blower, warp with motor shaft
Cross practical application to learn, if the transmission group part of common centrifugal blower is removed, and without change directly by impeller and motor
Connect, then motor shaft can be difficult to normal work with bearing because stress is excessive, equipment is produced quality problems.
The content of the invention
It is an object of the invention to provide a kind of centrifugal blower, the blower fan eliminates transmission group part completely, by changing electricity
Machine end cover structure, can coordinate the motor shaft and the more bearing of big load amount of more large-diameter, and then realize and have biography
The blower fan identical effect of dynamic group, on the basis of ensureing that equipment dependability is constant with performance, overcomes technical difficulty, significantly saves
The space of hold facility has been saved, equipment production cost has been reduced.
The technical scheme is that：A kind of centrifugal blower, by motor, the motor-driven motor shaft, with the electricity
The bearing that arbor is engaged, impeller, spiral case and motor the underframe composition installed in motor shaft one end, it is characterised in that eliminate
Be fitted into bearing in bearing outside on the outer face of electric motor end cap by the transmission group part of blower fan, bearing outside, after bearing loads
Bearing gland is fixed on electric motor end cap by bolt, the electric motor end cap top is provided with oil filler point, and end cover surface has connection
, be fixed to electric motor end cap on electric machine casing by connecting hole by hole, and the motor is directly installed as one with impeller, motor underframe
Body；For dust enters bearing in preventing work, at the axis hole position of the end cap being connected with electric machine casing and motor shaft cooperation, with
And at bearing gland axis hole position and motor shaft cooperation, sealing ring is respectively provided with, and in bearing gland axis hole position and motor shaft
Sealing ring at cooperation is externally provided with sealing gland, is connected with electric motor end cap by bolt；For dust enters in preventing work
Electric motor end cap, sealing ring is equipped with electric motor end cap outer face dress bearing outside with motor shaft cooperation.After removal transmission group, blower fan
Motor shaft and bearing will directly bear to come from the gravity of impeller, therefore the load capacity of bearing that is used of blower fan and motor
The diameter of axle of axle should all make corresponding adjustment, to ensure that related accessory will not deform fracture because stress is excessive：The blower fan
Bearing uses corresponding big load bearing, such as Y160M1, Y160M2, Y160L, Y180M type electricity according to different motor models
Machine, then using 6412 bearings, as motor model Y200L, Y225S, Y225M, then should use 6414 bearings；The motor shaft
The diameter of axle be adjusted according to different motor models, for example, using straight in Y160M1, Y160M2, Y160L, Y180M type motor
Footpath is the motor shaft of 56mm, the motor shaft of a diameter of 66mm is then used as motor model Y200L, Y225S, Y225M, more greatly
Type blower fan such as Y250M, Y280S, Y280M type, then need the motor shaft accordingly using 76mm；And because bearing outside is in motor
On the outer face of end cap, can cause that electric motor end cap has increased compared to common electric machine end cap, therefore need to be by motor shaft length phase
Should increase to meet assembling demand.It should be noted that also bearing outside can not be arranged on into the outer of electric motor end cap in practice
On end face, and the load capacity of the diameter of axle and bearing simply by increase motor shaft, impeller and motor are directly connected to, but it is this
Blower fan structure can be only applied in normal temperature blower fan, when as high-temperature blower, because temperature is higher at high-temperature blower impeller, from electricity
Machine is closer to the distance, is unfavorable for that bearing radiates if bearing is still placed in inside electric motor end cap, causes bearing running hot to trigger product
Quality problems；Secondly, bearing outside being arranged on the outer face of electric motor end cap can increase between the bearing of motor rear and front end
Distance, and then share the pressure of bearing, increase the reliability of equipment.Therefore this technology feature is in the base of lifting means reliability
On plinth, the centrifugal blower without transmission group of same structure had both been can serve as normal temperature blower fan and be also used as high temperature
Blower fan, with prominent substantive distinguishing features and significant progress.
Gusset is provided between the bearing outside and electric motor end cap, three is cast to become one structure, and the gusset is uniform
It is distributed in the outer surface of bearing outside, this structure can be on the basis of bonding strength be ensured, by gusset by bearing outside
A fixed gap is isolated between electric motor end cap, the temperature of bearing outside is directly passed when this space can prevent high-temperature blower from working
Being directed on electric machine casing causes equipment surface to overheat, and the area of gusset is smaller in addition, and the capacity of heat transmission is limited, therefore this kind of design can
With further mitigation the motor feels hot situation.
In view of the stability of connection, gusset quantity very few otherwise should not be connected there may be bearing outside with electric motor end cap
Unstable situation, therefore gusset quantity is preferably 4 to 8.
When as high-temperature blower, because gas flow temperature is too high, the situation that motor may be caused to radiate, motor is in nothing
Being worked long hours under conditions of method radiating or poor heat radiation can reduce service life of equipment, therefore can be in the electric motor end cap in axle
The surface for holding overcoat position is provided with two water-cooled through holes, and two through holes are communicated in cover internal, when as high-temperature blower,
Two through holes can be connected with water inlet pipe and drainpipe respectively, current being capable of the warm with bearing running by the pipeline of cover internal
Amount, plays a part of effective temperature-reducing.
Also can Blower Housing it is outer with the motor shaft at motor connection position at equipped with dissipating fan blade, cooperation water-cooled through hole can be
Strengthen radiating effect to a certain extent, scattered fan blade also can be individually used on the normal temperature blower fan without water-cooled through hole, for motor
Radiating.
The present invention can be greatly decreased equipment occupation space, reduce production cost, practical, wide market, with
With as a example by Y160L, length is 2396mm to G4-73NO8D blower fans after the completion of blower fan assembling, after the completion of being assembled using motor of the present invention
Blower fan total length is 1559mm, shortens 837mm, and blower fan weight is reduced to 660kg by 880kg, reduces weight 220kg, product drop
2000 yuan or so of low cost.
Brief description of the drawings
Accompanying drawing 1 is blower fan assembly structure diagram.
Accompanying drawing 2 is the front view of electric motor end cap.
Accompanying drawing 3 is the right view of electric motor end cap.
Accompanying drawing 4 is motor assembling schematic diagram.
Specific embodiment
Embodiment 1, a kind of centrifugal blower of motor model Y90L, by motor, the motor-driven motor shaft, with institute
The bearing that motor shaft is engaged is stated, impeller, spiral case and motor the underframe composition installed in motor shaft one end, this centrifugal blower are omitted
On the outer face of electric motor end cap be fitted into bearing 2 in bearing outside 1 by the transmission group part of blower fan, bearing outside 1, and will
Bearing gland 4 is bolted on electric machine casing, and the end cover surface has connecting hole, is consolidated electric motor end cap by connecting hole
Determine onto electric machine casing, the motor is directly installed as one with impeller, motor underframe；The bearing uses 6404 bearings, institute
The motor shaft diameter of axle is stated for 26mm；Sealing ring 5 is housed at bearing gland axis hole position and motor shaft cooperation, and with sealing gland 8
It is bolted closing.Sealing ring 6 is housed at end cap outer face dress bearing outside and motor shaft cooperation, and electric machine casing
Sealing ring 7 is housed at the axis hole position of connected end cap and motor shaft cooperation.
Embodiment 2, a kind of centrifugal blower of motor model Y100L1, by motor, the motor-driven motor shaft, with
The bearing that the motor shaft is engaged, impeller, spiral case and motor the underframe composition installed in motor shaft one end, this centrifugal blower is saved
The transmission group part of blower fan is omited, be fitted into bearing 2 in bearing outside 1 on the outer face of electric motor end cap by bearing outside 1, and
Bearing gland 4 is bolted on electric machine casing；The end cover surface has connecting hole, by connecting hole by electric motor end cap
It is fixed on electric machine casing, the motor is directly installed as one with impeller, motor underframe；The bearing uses 6408 bearings,
The motor shaft diameter of axle is 36mm.Sealing ring 5 is housed at bearing gland axis hole position and motor shaft cooperation, and uses sealing gland
8 are bolted closing；Sealing ring 6 is housed at end cap outer face dress bearing outside and motor shaft cooperation, and motor casing
Sealing ring 7 is housed at the axis hole position of body phase end cap even and motor shaft cooperation；It is uniform between the bearing outside 1 and electric motor end cap
4 gussets 3 are distributed with, three is cast to become one structure；Match somebody with somebody at the outer connecting portion motor shaft with motor of impeller spiral case
There is scattered fan blade 10.
Embodiment 3, a kind of centrifugal blower of motor model Y225M, by motor, the motor-driven motor shaft, with
The bearing that the motor shaft is engaged, impeller, spiral case and motor the underframe composition installed in motor shaft one end, this centrifugal blower is saved
The transmission group part of blower fan is omited, be fitted into bearing 2 in bearing outside 1 on the outer face of electric motor end cap by bearing outside 1, and
Bearing gland 4 is bolted on electric machine casing, the end cover surface has connecting hole, by connecting hole by electric motor end cap
It is fixed on electric machine casing, the motor is directly installed as one with impeller, motor underframe；The bearing uses 6414 bearings,
The motor shaft diameter of axle is 66mm；Sealing ring 5 is housed at bearing gland axis hole position and motor shaft cooperation, and uses sealing gland
8 are bolted closing；Sealing ring 6 is housed at end cap outer face dress bearing outside and motor shaft cooperation, and motor casing
Sealing ring 7 is housed at the axis hole position of body phase end cap even and motor shaft cooperation；It is uniform between the bearing outside 1 and electric motor end cap
8 gussets 3 are distributed with, three is cast to become one structure；The electric motor end cap sets on the surface of bearing outside position
There are two water-cooled through holes 9, through hole 9 is communicated in cover internal；It is furnished with the outer connecting portion motor shaft with motor of impeller spiral case
Dissipate fan blade 10.
Claims (5)
1. a kind of centrifugal blower, by motor, the motor-driven motor shaft, the bearing being engaged with the motor shaft is installed
Impeller, spiral case and motor underframe composition in motor shaft one end, it is characterised in that：The transmission group part of blower fan is eliminated, it is described
Motor is directly installed as one with impeller, motor underframe；Bearing is loaded bearing by bearing outside on the outer face of electric motor end cap
In overcoat, and bearing gland is bolted on electric motor end cap；At bearing gland axis hole position and motor shaft cooperation
Equipped with sealing ring, and closing is bolted with sealing gland；At end cap outer face dress bearing outside with motor shaft cooperation
Equipped with sealing ring, sealing ring is housed at the axis hole position of the end cap being connected with electric machine casing and motor shaft cooperation.
2. centrifugal blower as claimed in claim 1, it is characterised in that：There are gusset, three between the bearing outside and electric motor end cap
The cast structure that forms as one of person.
3. centrifugal blower as claimed in claim 2, it is characterised in that：The gusset quantity is 4 to 8.
4. centrifugal blower as claimed in claim 1, it is characterised in that：Table of the electric motor end cap in bearing outside position
Face is provided with two water-cooled through holes, and two through holes are communicated in cover internal.
5. the centrifugal blower as described in any one in Claims 1-4, it is characterised in that：It is outer and motor in impeller spiral case
Equipped with scattered fan blade at connecting portion motor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362250.0U CN206309620U (en) | 2016-12-13 | 2016-12-13 | Centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621362250.0U CN206309620U (en) | 2016-12-13 | 2016-12-13 | Centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206309620U true CN206309620U (en) | 2017-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621362250.0U Active CN206309620U (en) | 2016-12-13 | 2016-12-13 | Centrifugal blower |
Country Status (1)
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| CN (1) | CN206309620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594805A (en) * | 2019-08-09 | 2019-12-20 | 宁波方太厨具有限公司 | Side-draft range hood |
-
2016
- 2016-12-13 CN CN201621362250.0U patent/CN206309620U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594805A (en) * | 2019-08-09 | 2019-12-20 | 宁波方太厨具有限公司 | Side-draft range hood |
| CN110594805B (en) * | 2019-08-09 | 2021-04-16 | 宁波方太厨具有限公司 | Side-draft range hood |
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