CN104564807A - Fixing structure of centrifugal fan blade and air conditioner - Google Patents
Fixing structure of centrifugal fan blade and air conditioner Download PDFInfo
- Publication number
- CN104564807A CN104564807A CN201410836554.5A CN201410836554A CN104564807A CN 104564807 A CN104564807 A CN 104564807A CN 201410836554 A CN201410836554 A CN 201410836554A CN 104564807 A CN104564807 A CN 104564807A
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- China
- Prior art keywords
- axle sleeve
- centrifugation blade
- sleeve
- locking portion
- elastic locking
- Prior art date
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- Pending
Links
- 238000005119 centrifugation Methods 0.000 claims description 75
- 230000002093 peripheral effect Effects 0.000 claims description 21
- 238000004378 air conditioning Methods 0.000 claims description 11
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- 238000003801 milling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- 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
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- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fixing structure of a centrifugal fan blade and an air conditioner, and relates to the technical field of air conditioners. The technical problem of the prior art that the stability is poor when the centrifugal fan blade rotates is solved. The fixing structure of the centrifugal fan blade comprises a shaft sleeve, the centrifugal fan blade and a rotating shaft, wherein the shaft sleeve is inserted into a fixing hole of the centrifugal fan blade along the axial direction of the rotating axis of the centrifugal fan blade and can be fixedly connected with the centrifugal fan blade through a first connecting structure, and the first connecting structure is arranged between the circumferential inner wall of the fixing hole and the circumferential outer wall of the shaft sleeve; the rotating shaft is inserted into the shaft sleeve and can be fixedly connected with the shaft sleeve through the second connecting structure. The air conditioner comprises the fixing structure of the centrifugal fan blade. The centrifugal fan blade is used for improving the rotation stability of the centrifugal fan blade and the convenience of installation and maintenance.
Description
Technical field
The present invention relates to air-conditioning technical field, the air-conditioning of the fixed structure particularly relating to a kind of centrifugation blade and the fixed structure that this centrifugation blade is set.
Background technique
Centrifugation blade is one of the important component part of air-conditioning especially air-conditioning seat loop wheel machine.
At present, the means of fixation of air-conditioning seat loop wheel machine centrifugation blade be in most cases along centrifugation blade rotation axis radial direction blade, axle sleeve, nested on to go into operation dress hole, along the through hole passed in the radial direction on blade of centrifugation blade rotation axis, socket head screw is tightened nail extremely on the platform of rotating shaft (being called for short: axle) with elongated HEX HEAD CAP SCREWS cutter, utilize the extruding force of socket head screw and platform to prevent centrifugation blade from horizontally slipping and rotate relative to axle.
The applicant finds: prior art at least exists following technical problem:
In prior art blade, axle sleeve, nested on go into operation dress hole means of fixation due to decrease in same direction fan blade weight, have changed the leaf of a blade, and moment less under fan blade High Rotation Speed can produce larger centrifugal force, and fan blade is in the minimizing of same axially volume, mean the moment of the quality in the opposite direction creating corresponding volume, certain influence is had, less stable when causing centrifugation blade to rotate to the stability under centrifugation blade High Rotation Speed.
In addition, need special frock (elongated HEX HEAD CAP SCREWS cutter) owing to installing fan blade, be not easy to other places (as laboratory, client make use) except production line and dismantle fan blade and safeguard.
Summary of the invention
One of them object of the present invention proposes a kind of fixed structure of centrifugation blade and arranges the air-conditioning of fixed structure of this centrifugation blade, solves the technical problem that prior art exists less stable when centrifugation blade rotates.
Many technique effects that optimal technical scheme in many technological schemes provided by the invention can produce refer to hereafter sets forth.
For achieving the above object, the invention provides following technological scheme:
The fixed structure of the centrifugation blade that the embodiment of the present invention provides comprises axle sleeve, centrifugation blade and rotating shaft, wherein:
Described axle sleeve is plugged in the fixed hole of described centrifugation blade along the axial direction of the rotation axis of described centrifugation blade, and can be fixedly connected with centrifugation blade by the first linkage structure, the first linkage structure is arranged between the inner circumferential wall of described fixed hole and the peripheral outer wall of described axle sleeve;
Described rotating shaft to be inserted in described axle sleeve and can be fixedly connected with described axle sleeve by the second linkage structure.
As the further optimization of arbitrary technological scheme that the present invention provides above or hereinafter, described first linkage structure is adhesive coated, key linkage structure and/or over-surplus fit structure.
As the further optimization of arbitrary technological scheme that the present invention provides above or hereinafter, described axle sleeve is rotation body, wherein:
Described first linkage structure comprises and is arranged in described axle sleeve peripheral outer wall at least two fins extended along described axle sleeve circumferential direction and the adhesive-layer between the axle sleeve peripheral outer wall be arranged on around described fin and the inner circumferential wall of described fixed hole; Or,
Described first linkage structure comprises the keyway be arranged in described axle sleeve peripheral outer wall, be plugged on the connecting key in described keyway and adhesive-layer between the described axle sleeve peripheral outer wall that is arranged on around described connecting key and the inner circumferential wall of described fixed hole.
As the further optimization of arbitrary technological scheme that the present invention provides above or hereinafter, described second linkage structure comprises sleeve thread flange, elastic locking portion and tightening nut, wherein:
Described axle sleeve is installed with described sleeve thread flange and described elastic locking portion;
Described tightening nut is threaded with the outside thread on described sleeve thread flange and tightening nut described in described tightening nut screwing operations can extrude described elastic locking portion that described elastic locking portion is pressed in described rotating shaft.
As the further optimization of arbitrary technological scheme that the present invention provides, the every one end in the two ends on described axle sleeve axial direction is all installed with described sleeve thread flange and described elastic locking portion above or hereinafter;
Every one end in two ends on described axle sleeve axial direction is provided with described tightening nut.
As the further optimization of arbitrary technological scheme that the present invention provides above or hereinafter, the number in described sleeve thread flange and described elastic locking portion is at least two;
In the circumferential direction of described axle sleeve, described sleeve thread flange and described elastic locking portion are evenly distributed on the every one end on described axle sleeve axial direction in two ends.
As the further optimization of arbitrary technological scheme that the present invention provides above or hereinafter, in the circumferential direction of described axle sleeve, described sleeve thread flange and interval, described elastic locking portion are arranged, and there is gap between adjacent described sleeve thread flange and described elastic locking portion.
As the further optimization of arbitrary technological scheme that the present invention provides above or hereinafter, the arranged outside that described elastic locking portion deviates from one end of described axle sleeve compresses inclined-plane, inner side and is provided with lock projection, and the protrusion direction of described lock projection extends towards the direction of the center line (center line herein also can be called: central shaft, medial axis) close to described axle sleeve;
The inwall that described tightening nut deviates from described axle sleeve is provided with annular plane of inclination, compresses inclined-plane the described lock projection in described elastic locking portion is pressed in described rotating shaft described in annular plane of inclination described in described tightening nut screwing operations can compress.
As the further optimization of arbitrary technological scheme that the present invention provides above or hereinafter, the side that described elastic locking portion deviates from the center line of described axle sleeve is provided with arc surface, the center line of the outside thread three on described arc surface and described axle sleeve, described sleeve thread flange coincides, and the diameter of described arc surface is less than externally threaded large footpath on described sleeve thread flange or path, the size of described elastic locking portion on described axle sleeve axial direction is greater than described sleeve thread flange.
As the further optimization of arbitrary technological scheme that the present invention provides above or hereinafter, opposite each other and this rotation direction of the externally threaded rotation direction on the sleeve thread flange in the outside thread on the sleeve thread flange in the two ends on described axle sleeve axial direction wherein on one end and the two ends on described axle sleeve axial direction wherein on the other end all with the direction of rotation of described centrifugation blade.
As the further optimization of arbitrary technological scheme that the present invention provides above or hereinafter, in described axle sleeve and described tightening nut, at least described axle sleeve is elasticity moulding.
As the further optimization of arbitrary technological scheme that the present invention provides above or hereinafter, the internal diameter of described axle sleeve is identical with the external diameter of described rotating shaft, the outer wall of described rotating shaft is provided with positioning concave stations, described axle sleeve is set on described positioning concave stations, and tightening nut described in described tightening nut screwing operations can extrude described elastic locking portion that described elastic locking portion is pressed on the described positioning concave stations of described rotating shaft.As the further optimization of arbitrary technological scheme that the present invention provides above or hereinafter, the number of described positioning concave stations is consistent with the number of described lock projection, and tightening nut described in described tightening nut screwing operations can extrude described elastic locking portion that described elastic locking portion is pressed on different described positioning concave stations.
The air-conditioning that the embodiment of the present invention provides, comprises the fixed structure of the centrifugation blade that the arbitrary technological scheme of the present invention provides.As the further optimization of arbitrary technological scheme that the present invention provides above or hereinafter, described centrifugation blade comprises the first blade, the second blade and the mid-game between described first blade and described second blade;
The fixed hole of described centrifugation blade is arranged in described mid-game.
Based on technique scheme, the embodiment of the present invention at least can produce following technique effect:
In the fixed structure of the centrifugation blade provided due to the embodiment of the present invention, formed a fixed connection by the first linkage structure between the inner circumferential wall of fixed hole and the peripheral outer wall of axle sleeve, because the first linkage structure is between the inner circumferential wall and the peripheral outer wall of axle sleeve of fixed hole, rotating shaft to be inserted in axle sleeve and can be fixedly connected with axle sleeve by the second linkage structure, the present invention both can realize the connection between centrifugation blade and axle sleeve and between axle sleeve and rotating shaft without the need to the structure destroying axle sleeve and centrifugation blade wherein any one blade, remain complete fan blade leaf, so solve the technical problem that prior art exists less stable when centrifugation blade rotates.
In addition, Intermediate shaft sleeve of the present invention is connected by the second linkage structure with rotating shaft, the position connected and the first linkage structure have nothing to do, installing space is larger, without the need to adopting special frock and elongated HEX HEAD CAP SCREWS cutter, centrifugation blade can be dismantled safeguard in other places (such as laboratory, client make use) outside production line, improve the convenience of centrifugation blade I&M after sale thus.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
The fixed structure of the centrifugation blade that Fig. 1 provides for the embodiment of the present invention is fixedly connected with the schematic diagram of the process of centrifugation blade;
The schematic front view of the fixed structure Intermediate shaft sleeve of the centrifugation blade that Fig. 2 provides for the embodiment of the present invention;
Schematic diagram is looked on a left side for the fixed structure Intermediate shaft sleeve of the centrifugation blade that Fig. 3 provides for the embodiment of the present invention;
The schematic top plan view of the fixed structure Intermediate shaft sleeve of the centrifugation blade that Fig. 4 provides for the embodiment of the present invention;
The schematic front view of tightening nut in the fixed structure of the centrifugation blade that Fig. 5 provides for the embodiment of the present invention;
The schematic top plan view of tightening nut in the fixed structure of the centrifugation blade that Fig. 6 provides for the embodiment of the present invention;
The cross-sectional schematic of tightening nut in the fixed structure of the centrifugation blade that Fig. 7 provides for the embodiment of the present invention;
The partial schematic sectional view of annexation between the fixed structure of the centrifugation blade that Fig. 8 provides for the embodiment of the present invention and rotating shaft;
Reference character: 1, axle sleeve; 2, the first linkage structure; 20, fixed hole; 22, connecting key; 23, keyway; 3, rotating shaft; 31, positioning concave stations; 4, the second linkage structure; 41, sleeve thread flange; 42, elastic locking portion; 420, arc surface; 421, inclined-plane is compressed; 422, lock projection; 43, tightening nut; 430, annular plane of inclination; 5, centrifugation blade; 51, the first blade; 52, the second blade; 53, mid-game.
Embodiment
Content of the present invention and the distinctive points between the present invention and prior art can be understood below with reference to accompanying drawing Fig. 1 ~ Fig. 8 and word content.Hereafter by accompanying drawing and the mode enumerating embodiment more of the present invention, technological scheme of the present invention (comprising optimal technical scheme) is described in further detail.It should be noted that: any technical characteristics in the present embodiment, any technological scheme is all one or more in the technical characteristics of plurality of optional or optional technological scheme, cannot exhaustive all alternative technical characteristicss of the present invention and alternative technological scheme in order to describe succinct to need in presents, also the mode of execution being not easy to each technical characteristics all emphasizes that it is one of optional numerous embodiments, so those skilled in the art should know: arbitrary technological means provided by the invention can be carried out replacing or two or more technological means or technical characteristics arbitrarily provided by the invention being carried out mutually combining and obtain new technological scheme.Any technical characteristics in the present embodiment and any technological scheme all do not limit the scope of the invention, protection scope of the present invention should comprise those skilled in the art do not pay creative work thinkable any alternate embodiments and those skilled in the art new technological scheme that two or more technological means or technical characteristics arbitrarily provided by the invention are carried out mutually combining and obtain.
Embodiments provide one do not need special frock (extracting tool), rotational stabilization good, blade, axle sleeve do not destroyed and be convenient to the fixed structure of the centrifugation blade of installation, maintenance and the air-conditioning of fixed structure of this centrifugation blade is set.
Below in conjunction with the elaboration that Fig. 1 ~ Fig. 8 carries out specifically to technological scheme provided by the invention.
As shown in Fig. 2 ~ Fig. 8, the fixed structure of the centrifugation blade that the embodiment of the present invention provides, comprises axle sleeve 1, centrifugation blade 5, first linkage structure 2 and rotating shaft 3, wherein:
Axle sleeve 1 is plugged in the fixed hole 20 of centrifugation blade 5 along the axial direction of the rotation axis of centrifugation blade 5.
First linkage structure 2 is arranged between the inner circumferential wall of fixed hole 20 and the peripheral outer wall of axle sleeve 1 and the peripheral outer wall of the inner circumferential wall of fixed hole 20 and axle sleeve 1 is formed a fixed connection by the first linkage structure 2.Rotating shaft 3 to be inserted in axle sleeve 1 and can be fixedly connected with axle sleeve 1 by the second linkage structure 4.
The position of the second linkage structure 4 extend at axle sleeve 1 inner circumferential wall of fixed hole 20 position or between the inner circumferential wall and the peripheral outer wall of rotating shaft 3 of axle sleeve 1.Certainly, axle sleeve 1 and both rotating shafts 3 also can be integral type structure.
Formed a fixed connection by the first linkage structure 2 between the inner circumferential wall of fixed hole 20 and the peripheral outer wall of axle sleeve 1 in the fixed structure of the centrifugation blade provided due to the embodiment of the present invention, because the first linkage structure 2 is between the inner circumferential wall and the peripheral outer wall of axle sleeve 1 of fixed hole 20, rotating shaft to be inserted in axle sleeve and can be fixedly connected with axle sleeve by the second linkage structure, the present invention both can realize between centrifugation blade 5 and axle sleeve 1 without the need to the structure destroying axle sleeve 1 and centrifugation blade 5 wherein any one blade, connection between axle sleeve 1 and rotating shaft 3, remain complete fan blade leaf.
In addition, Intermediate shaft sleeve 1 of the present invention is connected by the second linkage structure with both rotating shafts 3, the position connected and the first linkage structure 2 have nothing to do, installing space is larger, without the need to adopting special frock and elongated HEX HEAD CAP SCREWS cutter, centrifugation blade 5 can be dismantled safeguard in other places (such as laboratory, client make use) outside production line, improve the convenience of centrifugation blade 5 I&M after sale thus.
As preferably or alternatively mode of execution, the first linkage structure 2 is adhesive structure, key linkage structure and/or over-surplus fit structure.Said structure all has compact structure, easy to connect, reliable advantage.
As preferably or alternatively mode of execution, adhesive structure comprises and is arranged in axle sleeve 1 peripheral outer wall at least two fins (gap between adjacent lugs can be understood as groove) and the adhesive-layer between axle sleeve 1 peripheral outer wall be arranged on around fin and the inner circumferential wall of fixed hole 20 extended along axle sleeve 1 circumferential direction.In this structure, fin can increase the frictional force between itself and the inner circumferential wall of fixed hole 20, avoids axle sleeve 1 to get loose from fixed hole 20.
Certainly, as another kind of mode of execution, in the present embodiment, the first linkage structure 2 can comprise the keyway be arranged in axle sleeve 1 peripheral outer wall, be plugged on the connecting key 22 in keyway and the adhesive-layer between axle sleeve 1 peripheral outer wall be arranged on around connecting key 22 and the inner circumferential wall of fixed hole 20.
It is good that key connection has connection reliability, and the advantage that circumference jumps not easily occurs.
As preferably or alternatively mode of execution, the second linkage structure comprises sleeve thread flange, elastic locking portion 42 and tightening nut 43, wherein:
Axle sleeve 1 is installed with sleeve thread flange and elastic locking portion 42.
Tightening nut 43 is threaded with the outside thread on sleeve thread flange and in tightening nut 43 screwing operations, tightening nut 43 can extrude elastic locking portion 42 elastic locking portion 42 is pressed in rotating shaft 3.
Above-mentioned second linkage structure 4 is not only convenient to dismounting, and compact structure, can realize utilizing the extrusion-deformation countershaft 3 in elastic locking portion 42 to carry out locking and positioning by tightening nut 43.
As preferably or alternatively mode of execution, the every one end in the two ends on axle sleeve 1 axial direction is all installed with sleeve thread flange and elastic locking portion 42.
Every one end in two ends on axle sleeve 1 axial direction is provided with tightening nut 43.
Better between the symmetry properties of the structure of mid-game 53 both sides on said structure rotating shaft 3 and even whole centrifugation blade 5 axial direction, balance in rotation process, reliability are even more ideal.
As preferably or alternatively mode of execution, the number in sleeve thread flange 41 and elastic locking portion 42 is at least two.In the circumferential direction of axle sleeve 1, sleeve thread flange 41 and elastic locking portion 42 are evenly distributed on the every one end on axle sleeve 1 axial direction in two ends.
Said structure is conducive to sleeve thread flange 41 and elastic locking portion 42 bears comparatively uniform coupling mechanism force or extruding force separately, and then improves the reliability of said structure.
As preferably or alternatively mode of execution, in the circumferential direction of axle sleeve 1, sleeve thread flange 41 and interval, elastic locking portion 42 are arranged, and there is gap between adjacent sleeve thread flange 41 and elastic locking portion 42.Gap is conducive to improving the elastic force in elastic locking portion 42, interval arrange can make on each elastic locking portion 42 and sleeve thread flange 41 stressed more homogeneous.
As preferably or alternatively mode of execution, the arranged outside that elastic locking portion 42 deviates from one end of axle sleeve 1 compresses inclined-plane 421, inner side is provided with lock projection 422, and the protrusion direction of lock projection 422 extends towards the direction of the center line close to axle sleeve 1.
The inwall that tightening nut 43 deviates from axle sleeve 1 is provided with annular plane of inclination 430, and in tightening nut 43 screwing operations, annular plane of inclination 430 can compress and inclined-plane 421 make the lock projection 422 in elastic locking portion 42 be pressed in rotating shaft 3.Compressing inclined-plane 421 coordinates realization to utilize lock projection 422 to compress rotating shaft 3 with annular plane of inclination 430, and then realizes the structure of axle sleeve 1 and the locking and positioning of rotating shaft 3, more laborsaving during operation, contributes to improving dismounting efficiency.
As preferably or alternatively mode of execution, the side that elastic locking portion 42 deviates from axle sleeve 1 central shaft is provided with arc surface 420, arc surface 420 coincides with the central shaft of the outside thread three on axle sleeve 1, sleeve thread flange 41, and the diameter of arc surface 420 is less than externally threaded large footpath on sleeve thread flange 41 or path.The size of elastic locking portion 42 on axle sleeve 1 axial direction is greater than sleeve thread flange 41.
This structure can guarantee that tightening nut 43 is about to screw and start in screwing operations again to extrude elastic locking portion 42, not only ensures the reliability that is threaded between tightening nut 43 with sleeve thread flange 41 thus, avoids tightening nut 43 and get loose.
As preferably or alternatively mode of execution, opposite each other and this rotation direction of the externally threaded rotation direction on the sleeve thread flange 41 in the outside thread on the sleeve thread flange 41 in the two ends on axle sleeve 1 axial direction wherein on one end and the two ends on axle sleeve 1 axial direction wherein on the other end all with the direction of rotation of centrifugation blade 5.
Axle sleeve 1 two ends hand of spiral is contrary, fan blade sense of rotation and tightening nut 43 is made to screw direction contrary, so the frictional force between tightening nut 43 and axle sleeve 1 produced under fan blade High Rotation Speed just can be utilized oppositely to fix tightening nut 43, it is made to turn tighter and tighter, more firm, avoid because not making to be screwed loosening of causing.Oppositely to outward winding tightening nut 43 without the need to special frock, firmly during dismounting, utilize the resiliently deformable of axle sleeve 1, easily can take out fan blade.
As preferably or alternatively mode of execution, axle sleeve 1 and both tightening nut 43 at least one of them (such as axle sleeve 1) are elasticity moulding.
Axle sleeve 1 and tightening nut 43 are moulding, have certain elasticity.Axle sleeve 1 internal diameter is identical with axle, and respectively there is upper and lower a pair platform both sides, and two interplanar spacings are identical with axle milling platform place spacing dimension, and because moulding axle sleeve 1 has elasticity during installation, rotating shaft 3 can pass through platform smoothly without milling platform place; After tightening nut 43 is installed, utilize the outer end taper-face contact of the inner conical surface and axle sleeve 1, fixedly make the platform of axle sleeve 1 upspring, utilize the extruding force restrictive axes of axle sleeve 1 two ends up and down altogether between 4 planes and rotating shaft 3 and the relative movement (slide and rotate) of axle sleeve 1.
As preferably or alternatively mode of execution, the internal diameter of axle sleeve 1 is identical with the external diameter of rotating shaft 3, the outer wall of rotating shaft 3 is provided with positioning concave stations 31, axle sleeve 1 is set on positioning concave stations 31, and in tightening nut 43 screwing operations, tightening nut 43 can extrude elastic locking portion 42 elastic locking portion 42 is pressed on the positioning concave stations 31 of rotating shaft 3.Positioning concave stations 31 can adopt the mode of Milling Process to process, create, so also referred to as rotating shaft 3 milling platform.Positioning concave stations 31 can increase the connection area between rotating shaft 3 and lock projection 422, thus guarantees the connection reliability between positioning concave stations 31 and lock projection 422.
As preferably or alternatively mode of execution, the number of positioning concave stations 31 is consistent with the number of lock projection 422, and in tightening nut 43 screwing operations, tightening nut 43 can extrude elastic locking portion 42 elastic locking portion 42 is pressed on different positioning concave stations 31.This structure can guarantee that each elastic locking portion 42 all clamps with the positioning concave stations 31 in rotating shaft 3, and then improves the connection reliability between axle sleeve 1 and rotating shaft 3.
The fixed structure of centrifugation blade provided by the invention can be assembled according to following order or step:
1, be enclosed within rotating shaft 3 by the axle sleeve 1 of centrifugation blade 5 and rotating shaft 3, the position of adjustment centrifugation blade 5, makes rotating shaft 3 overlap 1 two ends and is stuck in rotating shaft 3 milling platform place;
2, tightening nut 43 is inserted in rotating shaft 3 both sides;
3, firmly screw described tightening nut 43, make itself and rotating shaft 3 fix tightly.
The air-conditioning that the embodiment of the present invention provides, comprises the fixed structure of the centrifugation blade that the arbitrary technological scheme of the present invention provides.
Centrifugation blade 5 comprises the first blade 51, second blade 52 and the mid-game 53 between the first blade 51 and the second blade 52.The fixed hole 20 of centrifugation blade 5 is arranged in mid-game 53.The said structure of centrifugation blade 5 is prior art, and the fixed structure applying centrifugation blade provided by the invention can improve the convenience of the rotational stabilization of centrifugation blade 5 and dismounting, maintenance greatly.
Arbitrary technological scheme disclosed in the invention described above unless otherwise stated, if the number range of it discloses, so disclosed number range is preferred number range, anyly it should be appreciated by those skilled in the art: preferred number range is only the numerical value that in many enforceable numerical value, technique effect is obvious or representative.Because numerical value is more, cannot be exhaustive, so the present invention just discloses component values to illustrate technological scheme of the present invention, and the above-mentioned numerical value enumerated should not form the restriction to the invention protection domain.
If employ the word such as " first ", " second " herein to limit component, those skilled in the art should know: the use of " first ", " second " is only used to be convenient to describe carry out difference as not having outside Stated otherwise to component, the implication that above-mentioned word is not special.
Simultaneously, if the invention described above discloses or relate to component or the structural member of connection fastened to each other, so, unless otherwise stated, be fixedly connected with and can be understood as: can releasably be fixedly connected with (such as using bolt or screw to connect), also can be understood as: to be non-removablely fixedly connected with (such as rivet, weld), certainly, connection fastened to each other also can be replaced by integral type structure (such as use casting technique is integrally formed create) (obviously cannot adopt except integrally formed technique).
In addition, apply in arbitrary technological scheme disclosed in the invention described above for represent position relationship or shape term unless otherwise stated its implication comprise approximate with it, similar or close state or shape.Arbitrary parts provided by the invention both can be assembled by multiple independent constituent element, and also can be one of the forming manufacture technics separate part out.
Finally should be noted that: above embodiment is only in order to illustrate that technological scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technological scheme scope of request of the present invention protection.
Claims (10)
1. a fixed structure for centrifugation blade, is characterized in that, comprises axle sleeve (1), centrifugation blade (5) and rotating shaft (3), wherein:
Described axle sleeve (1) is plugged in the fixed hole (20) of described centrifugation blade (5) along the axial direction of the rotation axis of described centrifugation blade (5), and can be fixedly connected with centrifugation blade (5) by the first linkage structure (2), the first linkage structure (2) is arranged between the inner circumferential wall of described fixed hole (20) and the peripheral outer wall of described axle sleeve (1);
Described rotating shaft (3) to be inserted in described axle sleeve (1) and can be fixedly connected with described axle sleeve (1) by the second linkage structure (4).
2. the fixed structure of centrifugation blade according to claim 1, is characterized in that, described first linkage structure (2) is adhesive coated, key linkage structure and/or over-surplus fit structure.
3. the fixed structure of centrifugation blade according to claim 2, is characterized in that, described axle sleeve (1) in rotation body, wherein:
Described first linkage structure (2) comprises and is arranged in described axle sleeve (1) peripheral outer wall at least two fins extended along described axle sleeve (1) circumferential direction and the adhesive-layer between axle sleeve (1) peripheral outer wall be arranged on around described fin and the inner circumferential wall of described fixed hole (20); Or,
Described first linkage structure (2) comprises the keyway (23) be arranged in described axle sleeve (1) peripheral outer wall, is plugged on the connecting key (22) in described keyway (23) and is arranged on the adhesive-layer between described axle sleeve (1) peripheral outer wall of described connecting key (22) surrounding and the inner circumferential wall of described fixed hole (20).
4. the fixed structure of centrifugation blade according to claim 1, is characterized in that,
Described second linkage structure (4) comprises sleeve thread flange (41), elastic locking portion (42) and tightening nut (43), wherein:
Described axle sleeve (1) is installed with described sleeve thread flange (41) and described elastic locking portion (42);
Described tightening nut (43) is threaded with the outside thread on described sleeve thread flange (41) and tightening nut (43) described in described tightening nut (43) screwing operations can extrude described elastic locking portion (42) that described elastic locking portion (42) is pressed in described rotating shaft (3).
5. the fixed structure of centrifugation blade according to claim 4, it is characterized in that, the every one end in the two ends on described axle sleeve (1) axial direction is all installed with described sleeve thread flange (41) and described elastic locking portion (42);
Every one end in two ends on described axle sleeve (1) axial direction is provided with described tightening nut (43).
6. the fixed structure of centrifugation blade according to claim 5, it is characterized in that, the arranged outside that described elastic locking portion (42) deviates from one end of described axle sleeve (1) compresses inclined-plane (421), inner side is provided with lock projection (422), and the protrusion direction of described lock projection (422) extends towards the direction of the center line close to described axle sleeve (1);
The inwall that described tightening nut (43) deviates from described axle sleeve (1) is provided with annular plane of inclination (430), annular plane of inclination (430) described in described tightening nut (43) screwing operations can compress described in compress inclined-plane (421) the described lock projection (422) of described elastic locking portion (42) be pressed in described rotating shaft (3).
7. the fixed structure of centrifugation blade according to claim 6, it is characterized in that, the side that described elastic locking portion (42) deviates from the center line of described axle sleeve (1) is provided with arc surface (420), described arc surface (420) and described axle sleeve (1), the center line of the outside thread three on described sleeve thread flange (41) coincides, and the diameter of described arc surface (420) is less than externally threaded large footpath on described sleeve thread flange (41) or path, the size of described elastic locking portion (42) on described axle sleeve (1) axial direction is greater than described sleeve thread flange (41).
8. the fixed structure of centrifugation blade according to claim 5, it is characterized in that, opposite each other and this rotation direction of the externally threaded rotation direction on the sleeve thread flange (41) in the outside thread on the sleeve thread flange (41) in the two ends on described axle sleeve (1) axial direction wherein on one end and the two ends on described axle sleeve (1) axial direction wherein on the other end all with the direction of rotation of described centrifugation blade (5).
9. the fixed structure of centrifugation blade according to claim 5, is characterized in that,
The internal diameter of described axle sleeve (1) is identical with the external diameter of described rotating shaft (3), the outer wall of described rotating shaft (3) is provided with positioning concave stations (31), described axle sleeve (1) is set on described positioning concave stations (31), and tightening nut (43) described in described tightening nut (43) screwing operations can extrude described elastic locking portion (42) that described elastic locking portion (42) is pressed on the described positioning concave stations (31) of described rotating shaft (3).
10. an air-conditioning, is characterized in that, comprises the fixed structure of the arbitrary described centrifugation blade of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410836554.5A CN104564807A (en) | 2014-12-26 | 2014-12-26 | Fixing structure of centrifugal fan blade and air conditioner |
Applications Claiming Priority (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247465A (en) * | 2016-10-14 | 2016-12-21 | 珠海格力电器股份有限公司 | fan blade mounting structure and air conditioner |
| CN111794823A (en) * | 2020-07-14 | 2020-10-20 | 安徽聚源昕锐精密机械有限公司 | Low-loss camshaft sprocket and maintenance method |
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| CN203868084U (en) * | 2014-04-08 | 2014-10-08 | 何洲红 | Locking nut |
| CN204458507U (en) * | 2014-12-26 | 2015-07-08 | 珠海格力电器股份有限公司 | Fixing structure of centrifugal fan blade and air conditioner |
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| US4738593A (en) * | 1986-06-06 | 1988-04-19 | Philips Industries Inc. | Centrifugal blower wheel |
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| CN106247465A (en) * | 2016-10-14 | 2016-12-21 | 珠海格力电器股份有限公司 | fan blade mounting structure and air conditioner |
| CN106247465B (en) * | 2016-10-14 | 2022-02-15 | 珠海格力电器股份有限公司 | Fan blade mounting structure and air conditioner |
| CN111794823A (en) * | 2020-07-14 | 2020-10-20 | 安徽聚源昕锐精密机械有限公司 | Low-loss camshaft sprocket and maintenance method |
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