CN201627754U - Fan impeller and motor - Google Patents
Fan impeller and motor Download PDFInfo
- Publication number
- CN201627754U CN201627754U CN2009200035950U CN200920003595U CN201627754U CN 201627754 U CN201627754 U CN 201627754U CN 2009200035950 U CN2009200035950 U CN 2009200035950U CN 200920003595 U CN200920003595 U CN 200920003595U CN 201627754 U CN201627754 U CN 201627754U
- Authority
- CN
- China
- Prior art keywords
- fan impeller
- draught fan
- crown wheel
- recess
- draught
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
Abstract
The utility model relates to a fan impeller. Radial opposite through portions or notches are arranged on a conical disc wheel of the fan impeller, while the conical disc wheel supports the fan impeller, and tools for removing the fan impeller from a rotor shaft can penetrate through the through portions or the notches and can engage in cooperation with a reinforcing structure on the back side of the fan impeller. The reinforcing structure extends within an angle area, and fan blades are disposed on opposite sides of the disc wheel within the angle area.
Description
Technical field
The utility model relates to a kind of draught fan impeller and a kind of motor.
Background technique
The draught fan impeller that is used to cool off purposes in motor is known.Described draught fan impeller can not be connected with the B side end of rotor shaft for operation with relatively rotating.
The model utility content
The purpose of this utility model is, a kind of motor that has the draught fan impeller fixed structure of simplification is provided.
The key character of the utility model aspect draught fan impeller is, described draught fan impeller has a crown wheel, on this crown wheel, be furnished with fan blade, the radius of wherein said crown wheel is half by the radius of the tip description of described fan blade at least, wherein said fan blade is gone up at the circumferentially extending (length) of crown wheel and is extended, described crown wheel has at least two notches/recesses, described recess is arranged between two adjacent fan blades and axially runs through described crown wheel, described crown wheel has the rib of at least one and described draught fan impeller arranged concentric on a side relative with fan blade, described recess is arranged in the radial outside of described rib, and on described crown wheel, be formed with a ruggedized construction between each recess, described ruggedized construction upwards extends beyond the stretching, extension of described recess in week.Thus, described crown wheel can be made by thin-walled material, and ruggedized construction only comes to provide fully stable point of action/grasp a little for overcoming deck/clamping engagement (Klemmsitz) by the thickening of corresponding material, and described material thickening is preferably designed in projection that do not crossed by air flow stream, on a side of motor orientation.Can not use the protuberance other, that form noise on the flow side of draught fan impeller.The housing (for example B-bearing cap or brake casing) that draught fan impeller can be mounted to motor has little distance, needn't be the instrumental purpose slot milling.In addition, even when for example installing with bigger distance in order to admit measuring device, described measuring device can not be damaged owing to tool using irrelevantly during dismantling, but can be protected.
When described recess radially is arranged opposite to each other, tool using and not do not tilt or crooked particularly advantageously.
The good ruggedized construction of thin-walled crown wheel realizes like this, promptly described crown wheel on a side relative, have with fan blade two around rib, the axis of described rib and draught fan impeller is orientated with one heart, and described recess is arranged in the radial outside of described rib.Crown wheel, relative with a fan blade that is side that deviate from is towards that side of motor in the use position.
Described rib can also embed in the B-bearing cap or the corresponding recess in the brake casing of motor, to form labyrinth seal structure.It is hermetically enclosed that the measuring device that just can be used in the corner of the rotor shaft that is connected with draught fan impeller of identification and/or rotating speed by described labyrinth seal structure and crown wheel outwards forms housing ground.
A kind of configuration of the present utility model can be stipulated, be provided with a wheel hub, described wheel hub supporting crown wheel and within it portion have cavity axial orientation, that surround the draught fan impeller axis, described cavity preferably tiltedly seals and open on a side relative with a described side in a side updip of fan blade.By this wheel hub, (the kraftschl ü ssig) that can form in axial direction the force closure of draught fan impeller on motor shaft keeps, and described remaining on when removing can not be overcome by manually-operable by acting on the instrument on the described ruggedized construction.
When draught fan impeller is made plastic injection piece integratedly, obtain a kind of particularly advantageous manufacture.
In a kind of favourable configuration, at least three fan blades have a thickening part of axially stretching, and wherein form an axial bore in each thickening part, and described recess is positioned at the radial outside of the radial zone of being described by the thickening part.Therefore, when fan shroud is provided with the angle recognition device, that can select according to angular resolution, removable, as to have emission mark (Geberfahnen) dish can be installed on draught fan impeller, described dish does not hinder removal tool approaching.
A kind of favourable configuration can stipulate, the asymmetric ground of described recess, for example be arranged in prejudicially in section crown wheel, that define by two fan blades, and a fan blade respectively with a recess in the adjacency that makes progress in week.Therefore, can select the circumferential stretching, extension of recess as far as possible little, as far as possible interference-free guide from the side mobile, and can by ruggedized construction with power from tool guides to the supporting structure that forms by fan blade.Preferably, described ruggedized construction exceeds the angular orientation of the fan blade of adjacency along extending circumferentially, and acts directly on like this on the radial support structure that is formed by that fan blade.Preferably, described recess is not in the same way, but on the contrary from the center-biased of described section.This has reduced radially vibropendulous error/rotational variations.
If if described draught fan impeller just in time has nine fan blades and/or crown wheel has a taper matrix, the subtended angle of described matrix particularly is about 150 ° between 140 ° to 160 °, then hydrodynamic noise is low especially.Therefore, by the level and smooth form of implementation of crown wheel produce the advantage that realizes aspect the noise can be by other, the effect that produces hydrodynamic noise destroys.
The utility model can advantageously be applied in and have one and be arranged in the motor of the draught fan impeller on the rotor shaft, and wherein said draught fan impeller is according at least one design in the above-mentioned configuration, and described draught fan impeller is arranged on the rotor shaft by deck.
Be applied to aspect wherein of motor at the utility model, axial distance between bearing cap and the draught fan impeller less than act on part area instrument or described instrument between bearing cap and the draught fan impeller, for transmitting the required at least axial width of axial component of removal force, wherein can transmit by means of described instrument and be used for axially discharging the removal force that draught fan impeller is connected with the force closure of rotor shaft, described instrument is by steel or aluminium structure.
The utility model is not limited to the characteristics combination of each claim.Particularly by proposing purpose and/or by comparing the purpose that proposes with prior art, those skilled in the art can obtain other significant combinatory possibility of the feature of the feature of claim and/or each claim feature and/or specification and/or accompanying drawing.
Description of drawings
Illustrate in greater detail the utility model below in conjunction with accompanying drawing, among the figure:
Fig. 1 illustrates the motor that has the draught fan impeller of installing,
Fig. 2 illustrates the front elevation according to draught fan impeller of the present utility model,
Fig. 3 illustrates the rear view according to the draught fan impeller of Fig. 2, and
Fig. 4 illustrates the sectional view according to the draught fan impeller of Fig. 2.
Embodiment
On the external part of rotor shaft 2, be fixed with a draught fan impeller 5 that has a deck.Draught fan impeller 5 has wheel hub 6 and the crown wheel 7 that is connected with this wheel hub 6, and rotor shaft 2 passes described wheel hub and inserts.Crown wheel 7 is basically, and---that is except being up to 10% difference---extends on the circumferentially extending of the brake casing 8 of break 4.
Draught fan impeller 5 is provided with the basic shape of taper, wherein the inboard geared brake 4 of this taper.
Between draught fan impeller 5 and brake casing 8, form a receiving compartment 9 thus, in described receiving compartment, be provided with a measuring device 10.This measuring device 10 is connected with brake casing 8 and is used to discern the rotating speed and/or the angular orientation of rotor shaft 2.
On the outside of crown wheel 7, be formed with fan blade 11, these fan blades are extending in the stretching, extension of crown wheel 7 in the radial direction, and exceed described crown wheel and stretch out, make to limit by the most advanced and sophisticated inswept radial zone of fan blade 11 size by B-bearing cap 3.One fan shroud not shown further is contained on the layout of draught fan impeller 5 and break 4.
Draught fan impeller 5 its on a side of B-bearing cap 3 (that is on side relative) with fan blade 11 have two spaced apart from each other, with the rib 13 of the concentric distribution of the axis of symmetry of draught fan impeller 5, described rib is rabbeted in the respective notches of housing of measuring device 10, thereby forms labyrinth seal structure.
Measuring device 10 in the inner chamber of outer closure, be furnished with sensor 14 like this, this sensor produces the measurement signal of measuring device 10 when rotor shaft 2 rotations.
Analyze described measurement signal in the electronics flooding and controlling device 15 of motor, described electronics flooding and controlling device is the part of frequency variator.
Fig. 2 illustrates the front elevation of crown wheel 7, that is deviates from that side of B-bearing cap 3 in the use position.
Nine of crown wheel 7 supportings are the fan blades 11 of orientation vertically, and the central plane of described fan blade just lays respectively at one and comprises in the plane of axis of draught fan impeller 5.Described fan blade 11 radially extends to the outward edge of crown wheel 7 always from wheel hub 6, wherein the tip of fan blade 11 protrudes in crown wheel 7.
The air that is used to cool off is radially quickened by fan blade 11 and irrelevant to rotation direction ground, the deflection owing to the fan shroud of loading onto, and guide by stator case.Confirm the hydrodynamic noise minimum of blower fan when using nine fan blades 11.
The wheel hub 6 of draught fan impeller 5 has a hole 16 to admit rotor shaft 2, described Kong Zaiyi side forms flat portion 17, the sealed ground of draught fan impeller 5 shapes (formschl ü ssig) can be remained on the rotor shaft 2 by this flat portion, described rotor shaft has corresponding, an opposite flat portion for this reason.Be fixing draught fan impeller 5, also a retaining ring can be contained on the free end of rotor shaft.
The internal diameter in hole 16 is designed to little that draught fan impeller 5 is fixedly mounted on the rotor shaft 2 very much.Therefore, draught fan impeller 5 can not be dismantled with hand, needs instrument and remove draught fan impeller 5 from rotor shaft 2.In order when blower fan is worked, to realize favourable proportion of flow/situation and to produce noise as few as possible, make the surface of the outside orientation of crown wheel 7 and wheel hub 6 smooth as far as possible and do not have jut and possible service portion.Because draught fan impeller 5 is made integratedly by plastics generally, so the outward edge of crown wheel 7 equally not for instrument provides possible effect joining portion (Ansatz), but can make draught fan impeller 5 damage or distortion at least because lever/arm of force is big when placing.
Therefore, be used for breakthrough part removal tool, that be designed to be roughly trapezoidal recess 18 (Durchgriff) between two adjacent fan blades 11, being provided with respectively on the crown wheel 7.The recess 18 that its side roughly radially extends arranges relative to one another that radially the instrument that makes can act on symmetrically, and draught fan impeller 5 is tilted.Described instrument has two arms, and described arm passes recess 18 and catches crown wheel 7 in the back.Recess 18 week upwards be not whole, in the section that defines by adjacent fan blade 11, extend on the available zone, but only on a part, in any case make an appointment with half between 1/3rd to 2/3rds.
Fig. 3 illustrates the rear side of draught fan impeller 5, that is in the use position towards a side of B-bearing cap 3.Be formed with the ruggedized construction 19 as the material thickening part in crown wheel 7, it radially directly is connected on the rib 13 outside, that form labyrinth seal structure.Therefore, this ruggedized construction extends to the inside edge of recess 18 always and is formed for the acting surface of instrument from the rib 13 in the outside, to remove draught fan impellers 5 from rotor shaft 2.Therefore, ruggedized construction 19 forms the projection of the wheel hub 6 that designs stablely, thus crown wheel 7 unloadings to designing thinly pro rata.Ruggedized construction 19 is along extending circumferentially, and the inside edge that exceeds recess 18 in both sides is half of this edge length approximately, to prevent tearing material on the bight of recess 18.
For the imbalance (degree) of compensation, weight equalizer 22 is being set on the dorsal part of draught fan impeller 5, on crown wheel 7 by 17 generations of flat portion.
Fig. 4 illustrates the sectional view according to the draught fan impeller 5 of Fig. 2 and 3.Crown wheel 7 has one towards the edge 24 of B-bearing cap 3 bendings in its radial outer end portion, this edge improves air flow pattern (Luftabriss) thereby also reduces hydrodynamic noise.For described edge 24 is not damaged when removing draught fan impeller 5, removal tool is placed on the ruggedized construction 19.
One in nine fan blades 11 three that is per three fan blades 11 has a thickening part 26, and described thickening part forms the cylinder of axial orientation, and the transition part that wherein arrives fan blade 11 is rounded, forms a blind hole 27 in described thickening part respectively.These blind holes 27 are used for admitting respectively a screw.In the time should discerning the angle of rotor shaft 2 with the measuring device on the suction port that is fixed on fan shroud, described screw remains on a unshowned dish that has emission mark on the front side of draught fan impeller 5.
In other embodiments, be provided with three or more recess 18, described recess is distributed in week upwards regularly.
The utility model relates to a kind of draught fan impeller, crown wheel taper, the supporting fan blade has the breakthrough part or the recess of diametrically contraposition in described draught fan impeller, be used for from the instrument that rotor shaft is removed draught fan impeller can pass described breakthrough part or recess and can with the ruggedized construction acting in conjunction on dorsal part.Described ruggedized construction is extended in such angular regions, on the opposite side of described angular regions inner blower vane collocation at crown wheel.
Reference numerals list
1 motor
2 armature spindles
3 B-bearing caps
4 brakes
5 draught fan impellers
6 wheel hubs
7 crown wheels
8 brake casings
9 receiving compartments
10 measuring devices
11 fan blades
12 bearings
13 ribs
14 sensors
15 electronics flooding and controlling device
16 holes
17 flat portions
18 recesses
19 ruggedized constructions
20 cavitys
21 dividing plates
22 weight equalizers
23 rings
24 edges
25 terminals
26 thickening parts
27 blind holes
Claims (12)
1. draught fan impeller, have a crown wheel and the fan blade that is arranged on this dish, the radius of wherein said crown wheel is half by the radius of the tip description of described fan blade at least, and it is characterized in that: described fan blade extends on the circumferentially extending of crown wheel; Described crown wheel has at least two recesses, and described recess is arranged between two adjacent fan blades and axially runs through described crown wheel; Described crown wheel has the rib of at least one and described draught fan impeller arranged concentric on a side relative with fan blade; Described recess is arranged in the radial outside of described rib; And between each recess, being formed with a ruggedized construction on the described crown wheel, described ruggedized construction upwards extends beyond the stretching, extension of described recess in week.
2. draught fan impeller according to claim 1 is characterized in that: described recess is radially arranged relative to one another.
3. draught fan impeller according to claim 1, it is characterized in that: described crown wheel on a side relative, have with fan blade two around rib, the axis of wherein said rib and draught fan impeller is orientated with one heart, and wherein said recess is arranged in the radial outside of described rib.
4. according to each described draught fan impeller in the claim 1 to 3, it is characterized in that: be provided with a wheel hub, described wheel hub supporting crown wheel, and portion has cavity axial orientation, that surround the draught fan impeller axis within it, described cavity seals on a side of fan blade, and open on a side relative with a described side.
5. draught fan impeller according to claim 4 is characterized in that: described draught fan impeller is made plastic injection piece integratedly.
6. draught fan impeller according to claim 1 or 5, it is characterized in that: at least three fan blades have a thickening part of axially stretching, wherein in each thickening part, form an axial bore, and described recess is positioned at the radial outside of the radial zone of being described by the thickening part.
7. draught fan impeller according to claim 6 is characterized in that: described recess is arranged in the section that is defined by two fan blades of crown wheel asymmetricly; And a fan blade respectively with a recess in the adjacency that makes progress in week.
8. draught fan impeller according to claim 5 is characterized in that: described draught fan impeller has nine fan blades.
9. draught fan impeller according to claim 3 is characterized in that: described crown wheel has a taper matrix, and the subtended angle of described matrix is between 140 ° to 160 °.
10. draught fan impeller according to claim 9 is characterized in that: described subtended angle is 150 °.
11. a motor has a draught fan impeller that is arranged on the rotor shaft, it is characterized in that: at least one design during described draught fan impeller requires according to aforesaid right; And described draught fan impeller is arranged on the rotor shaft with deck.
12. motor according to claim 11, it is characterized in that: the axial distance between bearing cap and the draught fan impeller less than act on part area instrument or described instrument between bearing cap and the draught fan impeller, for transmitting the required at least axial width of axial component of removal force, wherein can transmit by means of described instrument and be used for axially discharging the removal force that draught fan impeller is connected with the force closure of rotor shaft, described instrument is by steel or aluminium structure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008006804.7 | 2008-01-30 | ||
| DE200810006804 DE102008006804A1 (en) | 2008-01-30 | 2008-01-30 | Fan impeller for electric motor has crown wheel, where fan blades extend over radial expansion of crown wheel, and crown wheel has two recesses, where every recess is arranged between two neighboring fan blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201627754U true CN201627754U (en) | 2010-11-10 |
Family
ID=40822020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200035950U Expired - Lifetime CN201627754U (en) | 2008-01-30 | 2009-01-22 | Fan impeller and motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201627754U (en) |
| DE (1) | DE102008006804A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533054A (en) * | 2016-12-28 | 2017-03-22 | 卧龙电气集团股份有限公司 | Convenient-to-disassemble motor fan and motor |
-
2008
- 2008-01-30 DE DE200810006804 patent/DE102008006804A1/en active Pending
-
2009
- 2009-01-22 CN CN2009200035950U patent/CN201627754U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533054A (en) * | 2016-12-28 | 2017-03-22 | 卧龙电气集团股份有限公司 | Convenient-to-disassemble motor fan and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008006804A1 (en) | 2009-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101110 |