CN104533759B - Anti-looseness structure for air compressor cooling fan - Google Patents
Anti-looseness structure for air compressor cooling fan Download PDFInfo
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- CN104533759B CN104533759B CN201410852861.2A CN201410852861A CN104533759B CN 104533759 B CN104533759 B CN 104533759B CN 201410852861 A CN201410852861 A CN 201410852861A CN 104533759 B CN104533759 B CN 104533759B
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- motor shaft
- bent axle
- fan
- seam
- extension
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- 238000001816 cooling Methods 0.000 title claims abstract description 20
- 241000883990 Flabellum Species 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention belongs to the technical field of compressors, and relates to an anti-looseness structure for an air compressor cooling fan. The anti-looseness structure comprises a hub and fan blades. The anti-looseness structure for the air compressor cooling fan is characterized in that a rotation stopping structure is arranged on the hub or/and the fan blades, and the rotation stopping structure is arranged obliquely relative to the rotating axis of the fan. Compared with the prior art, the anti-looseness structure for the air compressor cooling fan has the advantages that the rotation stopping structure which is arranged obliquely is arranged, a bigger rotation stopping arm of force is formed by the eccentric distance, which is much larger than a traditional locking radius on the value aspect, of the rotation stopping mechanism, so that the more effective and larger value moment of force, which can resist loose rotating of the fan, is formed, in other words, the rotation stopping capacity of the fan is enhanced, and therefore the working reliability of the compressor can be improved.
Description
Technical field
The invention belongs to Compressor Technology field, is related to a kind of structure of air compressor cooling fan, specifically relate to
And a kind of locking rotation structure and its layout of oil-free air compressor cooling fan.
Background technology
Existing air compressor is required to arrange cooling fan, and the heat produced during so as to compressed air, movement parts are rubbed
Wiping the heat of the heat and motor generation for producing carries out dissipating but, so as to ensureing the functional reliability of compressor and extending core
The life-span of part.
Currently, oil-free air compressor crankshaft front end usually in compressor or the tail end installation cooling wind in motor shaft
Fan, the fan includes wheel hub and flabellum etc., installing hole is wherein provided with wheel hub and is attached with bent axle or with motor shaft.
Classical connection configuration includes：1) using the method that thread is opened up in bent axle or on motor shaft, with clamp nut or screw
Structure applies fastening force and fan is pressed on axle along the axial direction of bent axle or motor shaft；2) adopt and opened in fan hub
If the method for radial hole or radial direction thread, the fastening force applied radially with trip bolt or bolt fastens wheel hub and axle
Together；3) using the method for interference fit, the power of encircling produced with contraction distortion is fastened as a whole wheel hub with axle.
The above-mentioned connection of air compressor simultaneously drives the structure that fan is rotated to there are weak point, is mainly manifested in：Connection
The fastening position of component is too near due to the rotation axiss apart from fan, causes it relative to bent axle or the power of the axis of motor shaft
Arm is too little, as a result its produce rotation stop ability it is weaker, therefore obtain prevent the ability that fan is released extremely limited.Many institute's weeks
Know, the work characteristics of air compressor is to operate as intermittent, that is, start-stop stops, because there is fan certain rotation to be used to
Amount, therefore the round moment of inertia for turning around its axis of rotation can be derived in use, in this moment of inertia
Under repeated action, above-mentioned conventional fan fastening structure easily fails and occurs releasing.The fan of particularly such compressor is general
Made using plastics or aluminium alloy, and connected bent axle or motor shaft temperature are again relatively higher, due to deformation compared with
The reasons such as big and material softening, as a result cause the defect that conventional fastening structures are easily released to be further exacerbated by deteriorating, and not only can produce
The larger running noises of life, but also the functional reliability of compressor can be endangered.
The content of the invention
For the locking defect for turning scarce capacity that traditional compressor cooling fan fastening structure is present, the present invention proposes one
Plant the locking rotation structure of air compressor cooling fan, it is therefore intended that effectively strengthen the locking ability of turning of fan, it is past to resist fan
Return the pine that moment of inertia derived from and turn the tendency that comes off, so as to improve the functional reliability of compressor.
The object of the present invention is achieved like this：A kind of locking rotation structure of air compressor cooling fan, including with bent axle
Or flabellum of wheel hub, the annular spread being connected with motor shaft on wheel hub, it is characterised in that：Set on wheel hub or/and flabellum
Spline structure is equipped with, the spline structure is in biasing layout relative to the axis of rotation of fan.
Above-mentioned spline structure is cavernous structure, and using screw or pin component Kong Eryu crankshaft bodies, the bent axle is interted
The connection of extension, motor shaft body or motor shaft extension.
Above-mentioned spline structure be boss-shaped structure, and with crankshaft body, bent axle extension, motor shaft body or motor shaft
Groove or hole connection on extension.
Above-mentioned spline structure be groove-like structure, and with crankshaft body, bent axle extension, motor shaft body or motor shaft
Boss or stud connection on extension.
Above-mentioned spline structure be recessed seam shape structure, and with crankshaft body, bent axle extension, motor shaft body or motor
Seam boss, the seam shaft shoulder or seam backing pin connection on axle extension.
Above-mentioned spline structure be male half coupling shape structure, and with crankshaft body, bent axle extension, motor shaft body or motor
Seam groove, seam hole or seam arc connection on axle extension.
Present invention advantage prominent compared to existing technology is：Using in fan hub or/and flabellum, spline structure is set,
And allow spline structure relative to fan axis of rotation in biasing layout, its eccentric throw can many bigger than traditional stop radius,
Therefore the torque that opposing fan pine turns can effectively be amplified, in other words the rotation stop ability of fan is enhanced, so as to improve pressure
The functional reliability of contracting machine.
Description of the drawings
Fig. 1 is that the axle survey blast that a kind of locking rotation structure of air compressor cooling fan of the invention is poroid spline structure is shown
It is intended to；
Fig. 2 is the assembling structure section view axonometric drawing of the embodiment of the present invention shown in Fig. 1；
Fig. 3 is that the axle that a kind of locking rotation structure of air compressor cooling fan of the invention is key-shaped boss-shaped spline structure is surveyed
Exploded perspective view；
Fig. 4 is the assembling structure section view axonometric drawing of the embodiment of the present invention shown in Fig. 3；
Fig. 5 is that the axle that a kind of locking rotation structure of air compressor cooling fan of the invention is round boss shape spline structure is surveyed
Exploded perspective view；
Fig. 6 is that the assembling structure section view axle that a kind of locking rotation structure of air compressor cooling fan of the invention is groove-like is surveyed
Figure.
Specific embodiment
Below with specific embodiment, the invention will be further described, referring to Fig. 1-6：
A kind of locking rotation structure of air compressor cooling fan, including with bent axle 1 (as shown in Figures 1 to 6) or and motor
The wheel hub 2, annular spread of axle (not shown) connection flabellum 3 on the hub 2, wheel hub 2 and flabellum 3 are received bent axle 1 or are received
The driving of motor shaft and with rotating along with them.The present invention characteristic be：Rotation stop is provided with wheel hub 2 or/and flabellum 3
Structure 4, the spline structure 4 refers to the master of spline structure 4 relative to the axis of rotation O1 of fan in layout, so-called biasing is biased
Body structure (producing position and component that opposing fan is circumferentially rotated relative to bent axle 1 or motor shaft) exists with axis of rotation O1
There is a certain distance, biasing carried out due to the spline structure 4 and is arranged, therefore one can be obtained than larger stop eccentric throw,
In other words the eccentric throw constitutes the stopping power that the opposing of spline structure 4 fan is circumferentially rotated relative to bent axle 1 or motor shaft
The main body of arm, when compressor causes cooling fan to derive from round inertia torque because rotating and stopping, due to stop bias
Away to be present in can be the stop torque that produces the above-mentioned round inertia torque of opposing, such that it is able to guarantee cooling fan relative to
Bent axle 1 or motor shaft do not occur to loosen rotation.It is pointed out that spline structure 4 directly can be connected with the body of bent axle 1
Connecing can also be attached with the extension of bent axle 1, and the extension of so-called bent axle 1 had both included the balance weight 1a of bent axle 1 (referring to figure
1 to Fig. 6), also (do not show in figure including the component being fastenedly connected with the component of the integral production of bent axle 1 or with bent axle 1 of other forms
Go out), spline structure 4 directly can also be attached (not shown) with the body of motor shaft can also be with the extension of motor shaft
Body is attached (not shown), the extension of so-called motor shaft includes the various forms of components with motor shaft integral production
Or the component (not shown) being fastenedly connected with motor shaft.Further need exist for, it is noted that the flabellum 3 described in the present invention both
Including traditional lamellar blade also including the extension of blade, such as with water conservancy diversion backboard 3a, the guide ring band of blade unitary rotation
3b and connection board member 3c (referring to Fig. 1) etc. belong to the category of blade extension body, wherein the function master of water conservancy diversion backboard 3a
If making the flowing of radial direction, function of the guide ring with 3b and being mainly used for guiding and constrain air-flow to make for guiding and constraining air-flow
The flowing of axial direction, the function of connection board member 3c mainly connect and drive flabellum 3.In addition to for the sake of simplifying, can be by bent axle 1
Body be referred to as that crankshaft body, the extension of bent axle 1 are referred to as bent axle extension, the body of motor shaft is referred to as motor shaft sheet
Body, the extension of motor shaft are referred to as motor shaft extension, the extension of blade is referred to as blade extension body.
The spline structure 4 of the present invention can be made as cavernous structure 4a (referring to Fig. 1 and Fig. 2), can now utilize screw
44a or/and pin component 44b are inserted through the Kong Eryu crankshaft bodies, bent axle extension, motor shaft body or motor shaft and extend
Body is attached；It should be noted that cavernous structure 4a mentioned here had both included that various circular ports and irregularly-shaped hole also included spiral shell
Pit, when it is thread pore structure, (not shown) even can also be extended using the interspersed crankshaft body of bolt or bent axle
Body or (not shown) is fastenedly connected with the screwed hole using the interspersed motor shaft body of bolt or motor shaft extension.
The spline structure 4 of the present invention can be made as boss-shaped structure 4b (referring to Fig. 3, Fig. 4 and Fig. 5), wherein boss-shaped
It can also be that dome column (as shown in Figure 5) can also be it that the shape of structure 4b can be convex key-like (as shown in Figure 3 and Figure 4)
The convex cylinder (not shown) of its shape, now prolongs in crankshaft body, bent axle extension, motor shaft body or motor shaft
(Fig. 3 and Fig. 4 give and open up groove on the balance weight 1a of bent axle extension to offer corresponding groove 5a on exhibition body
The example of 5a) or hole 5b (Fig. 5 gives the example that hole 5b is opened up on the balance weight 1a of bent axle extension), the boss-shaped structure
Groove 5a (referring to Fig. 3 and Fig. 4) or hole on 4b and crankshaft body, bent axle extension, motor shaft body or motor shaft extension
5b connections coordinate (referring to Fig. 5)；It should be noted that groove 5a can be the groove (not shown) of heavy hole shape can also be
The notch-like (as shown in Figure 3 and Figure 4) of nick shaped, in addition hole 5b can be through hole (referring to Fig. 5) can also be blind hole (in figure not
Illustrate), can be circular hole (as shown in Figure 5) can also be other forms various irregularly-shaped hole (not shown)s.
The spline structure 4 of the present invention can be groove-like structure 4c (referring to Fig. 6), now extend in crankshaft body, bent axle
Corresponding boss 6a (as shown in Figure 6) or stud are offered on body, motor shaft body or motor shaft extension (in figure not
Illustrate), groove-like structure 4c is with above-mentioned boss 6a or stud is connected；It should be noted that groove 4c can be heavy hole shape
Groove (as shown in Figure 6), can also be nick shaped notch-like (not shown), in addition boss 6a can be convex chain structure
(as shown in Figure 6) can also be dome column structure (not shown), and this outer lug boss 6a can also be the boss of other forms
Structure (not shown).
The spline structure 4 of the present invention can also be recessed seam shape structure (not shown), extend in crankshaft body, bent axle
Corresponding seam boss, the seam shaft shoulder, seam backing pin (figure are offered on body, motor shaft body or motor shaft extension
Not shown in), the recessed seam shape structure is connected with above-mentioned seam boss, the seam shaft shoulder or seam backing pin.
The spline structure 4 of the present invention can also be male half coupling shape structure (not shown), extend in crankshaft body, bent axle
Corresponding seam groove, seam hole or seam arc are offered on body, motor shaft body or motor shaft extension, this is convex only
Mouth shape structure is connected with above-mentioned seam groove, seam hole or seam arc.
It must be noted that above-described embodiment concrete structure scheme of the spline structure 4 of the present invention both can be adopted independently
The joint that can also combine is adopted, and so can make fan to combine employing together with traditional locking rotation structure
Anti-loosing effect is more preferably.
Present invention advantage prominent compared to existing technology is：Using the setting spline structure 4 on wheel hub 2 or/and flabellum 3,
And allowing spline structure 4 relative to the axis of rotation O1 of fan in biasing layout, its eccentric throw can be than traditional stop radius great Xu
It is many, therefore can effectively amplify the torque that opposing fan pine turns, in other words the rotation stop ability of fan is enhanced, so as to improve
The functional reliability of compressor.
Above-described embodiment is only one of presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore：
The various equivalence changes that all structures under this invention, shape, principle are done, all should be covered by within protection scope of the present invention.
Claims (1)
1. the locking rotation structure of a kind of air compressor cooling fan, including the wheel hub, the annular that are connected with bent axle or with motor shaft
The flabellum being distributed on wheel hub, it is characterised in that：Spline structure, the spline structure phase are provided with wheel hub or/and flabellum
For the axis of rotation of fan is in biasing layout,
The spline structure be cavernous structure, using screw or pin component intert the Kong Eryu crankshaft bodies, bent axle extension,
Motor shaft body or motor shaft extension connect；
Or the spline structure is boss-shaped structure, and extend with crankshaft body, bent axle extension, motor shaft body or motor shaft
Groove or hole connection on body；
Or the spline structure is groove-like structure, and extend with crankshaft body, bent axle extension, motor shaft body or motor shaft
Boss or stud connection on body；
Or the spline structure is recessed seam shape structure, and prolong with crankshaft body, bent axle extension, motor shaft body or motor shaft
Seam boss, the seam shaft shoulder or the connection of seam backing pin on exhibition body；
Or the spline structure is male half coupling shape structure, and prolong with crankshaft body, bent axle extension, motor shaft body or motor shaft
Seam groove, seam hole or the connection of seam arc on exhibition body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852861.2A CN104533759B (en) | 2014-12-31 | 2014-12-31 | Anti-looseness structure for air compressor cooling fan |
| PCT/CN2015/097280 WO2016107399A1 (en) | 2014-12-31 | 2015-12-14 | Air compressor crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852861.2A CN104533759B (en) | 2014-12-31 | 2014-12-31 | Anti-looseness structure for air compressor cooling fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533759A CN104533759A (en) | 2015-04-22 |
| CN104533759B true CN104533759B (en) | 2017-05-17 |
Family
ID=52849349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410852861.2A Active CN104533759B (en) | 2014-12-31 | 2014-12-31 | Anti-looseness structure for air compressor cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533759B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016107399A1 (en) * | 2014-12-31 | 2016-07-07 | 浙江鸿友压缩机制造有限公司 | Air compressor crankshaft |
| CN108916112B (en) * | 2018-09-05 | 2024-06-21 | 浙江鸿友压缩机制造有限公司 | Fan with double-shunt structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1355064A1 (en) * | 2002-04-17 | 2003-10-22 | Cifarelli S.p.A. | Blower fan, in particular for blowing apparatuses, and blowing apparatus provided thereof |
| CN2783612Y (en) * | 2004-12-06 | 2006-05-24 | 赵幼章 | Radiution vane for motor |
| CN201714688U (en) * | 2010-01-14 | 2011-01-19 | 重庆阿波罗港城科技有限公司 | Novel fan for 268-type universal generator |
| CN202152759U (en) * | 2011-07-08 | 2012-02-29 | 重庆神驰机电有限公司 | Electric generator fan |
| CN203856767U (en) * | 2014-03-19 | 2014-10-01 | 台州戴蒙得机械有限公司 | Highly positioned fan on oilless air compressor |
| CN204402804U (en) * | 2014-12-31 | 2015-06-17 | 浙江鸿友压缩机制造有限公司 | The locking rotation structure of a kind of air compressor cooling fan |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4855788B2 (en) * | 2006-01-31 | 2012-01-18 | 株式会社日立産機システム | Reciprocating compressor |
| CN201218210Y (en) * | 2008-05-28 | 2009-04-08 | 佛山市广顺电器有限公司 | Air intake device of compressor |
-
2014
- 2014-12-31 CN CN201410852861.2A patent/CN104533759B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1355064A1 (en) * | 2002-04-17 | 2003-10-22 | Cifarelli S.p.A. | Blower fan, in particular for blowing apparatuses, and blowing apparatus provided thereof |
| CN2783612Y (en) * | 2004-12-06 | 2006-05-24 | 赵幼章 | Radiution vane for motor |
| CN201714688U (en) * | 2010-01-14 | 2011-01-19 | 重庆阿波罗港城科技有限公司 | Novel fan for 268-type universal generator |
| CN202152759U (en) * | 2011-07-08 | 2012-02-29 | 重庆神驰机电有限公司 | Electric generator fan |
| CN203856767U (en) * | 2014-03-19 | 2014-10-01 | 台州戴蒙得机械有限公司 | Highly positioned fan on oilless air compressor |
| CN204402804U (en) * | 2014-12-31 | 2015-06-17 | 浙江鸿友压缩机制造有限公司 | The locking rotation structure of a kind of air compressor cooling fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104533759A (en) | 2015-04-22 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: An anti loosening structure for the cooling fan of an air compressor Effective date of registration: 20231229 Granted publication date: 20170517 Pledgee: Wenling branch of the Industrial Commercial Bank of China Ltd. Pledgor: ZHEJIANG HONGYOU AIR COMPRESSOR MANUFACTURING Co.,Ltd. Registration number: Y2023980074319 |