CN204402804U - The locking rotation structure of a kind of air compressor cooling fan - Google Patents
The locking rotation structure of a kind of air compressor cooling fan Download PDFInfo
- Publication number
- CN204402804U CN204402804U CN201420870586.2U CN201420870586U CN204402804U CN 204402804 U CN204402804 U CN 204402804U CN 201420870586 U CN201420870586 U CN 201420870586U CN 204402804 U CN204402804 U CN 204402804U
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- motor shaft
- bent axle
- air compressor
- extension body
- cooling fan
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Abstract
The utility model belongs to Compressor Technology field, relate to the locking rotation structure of a kind of air compressor cooling fan, this locking rotation structure includes wheel hub and flabellum, its greatest feature is at wheel hub or/and flabellum is provided with spline structure, and described spline structure is biased layout relative to the rotational axis of fan.The advantage that the utility model is given prominence to compared to existing technology is: by arranging the spline structure in biased layout, its numerically many greatly than traditional stop radius throw of eccentric is utilized to form a larger spline arm of force, thus form the loose moment turned of opposing fan that is more effective and larger numerical value, in other words the spline ability of fan is strengthened, thus can improve the functional reliability of compressor.
Description
Technical field
The utility model belongs to Compressor Technology field, relates to a kind of structure of air compressor cooling fan, relates in particular to a kind of locking rotation structure and layout thereof of oil-free air compressor cooling fan.
Background technique
Existing air compressor all needs to arrange cooling fan, so as the heat that the heat produced during pressurized air, the fricative heat of movement parts and motor are produced carry out loose but, thus ensure the functional reliability of compressor and extend life-span of core component.
Current, oil-free air compressor usually installs cooling fan at the crankshaft front end of compressor or at the tail end of motor shaft, and this fan includes wheel hub and flabellum etc., wherein wheel hub is provided with mounting hole and is connected with bent axle or with motor shaft.Classical connection configuration comprises: 1) adopt in bent axle or the way offering thread on motor shaft, applies fastening force be pressed on axle by fan with tightening nut or bolt structure along the axial direction of bent axle or motor shaft; 2) adopt the way offering radial hole or radial thread in fan hub, with the fastening force that fastening screw trip bolt or bolt apply radially, wheel hub is tightened together with axle; 3) adopt the way of interference fit, by the power of encircling that contraction deformation produces, wheel hub and axle are fastened as a whole.
The structure that the above-mentioned connection of air compressor drive fan are rotated has deficiency, be mainly manifested in: the fastening position of connector element due to the spin axis of distance fan too near, cause it too little relative to the arm of force of the axis of bent axle or motor shaft, its spline ability produced of result is more weak, and the ability preventing fan from getting loose therefore obtained is very limited.As everyone knows, the work characteristics of air compressor be operate as intermittent, that is start-stop stops, because fan has certain rotary inertia, therefore the round moment of inertia turned around its rotational axis can in use be derived, under the repeated action of this moment of inertia, above-mentioned conventional fan fastening structure very easily lost efficacy and occurred getting loose.Particularly the fan of this type of compressor generally adopts plastics or aluminum alloy to make, and connected bent axle or motor shaft temperature higher again, owing to being out of shape the reasons such as comparatively large and material deliquescing, the further exacerbated of the defect that result makes conventional fastening structures easily get loose, not only can produce larger running noises, but also the functional reliability of compressor can be endangered.
Summary of the invention
For the locking defect turning scarce capacity that traditional compressor cooling fan fastening structure exists, the utility model proposes the locking rotation structure of a kind of air compressor cooling fan, object is the locking ability of turning effectively strengthening fan, come and go the pine that moment of inertia derives from and turn to resist fan the tendency that comes off, thus improve the functional reliability of compressor.
The purpose of this utility model is achieved in that the locking rotation structure of a kind of air compressor cooling fan, comprise and bent axle or the wheel hub be connected with motor shaft, the flabellum of annular spread on wheel hub, it is characterized in that: at wheel hub or/and flabellum is provided with spline structure, described spline structure is biased layout relative to the rotational axis of fan.
Above-mentioned spline structure is cavernous structure, utilize screw or pin component intert this Kong Eryu crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body connect.
Above-mentioned spline structure is boss-shaped structure, and is connected with the groove on crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body or hole.
Above-mentioned spline structure is groove-like structure, and is connected with the boss on crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body or stud.
Above-mentioned spline structure is recessed seam shape structure, and is connected with seam boss, the seam shaft shoulder or seam backing pin on crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body.
Above-mentioned spline structure is male half coupling shape structure, and is connected with the seam groove on crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body, seam hole or seam arc.
The advantage that the utility model is given prominence to compared to existing technology is: adopt in fan hub or/and flabellum arranges spline structure, and allow spline structure relative to the rotational axis of fan in biased layout, its throw of eccentric can be more many greatly than traditional stop radius, therefore the moment that opposing fan pine turns can effectively be amplified, in other words the spline ability of fan is strengthened, thus improves the functional reliability of compressor.
Accompanying drawing explanation
The axle of Fig. 1 to be the locking rotation structure of a kind of air compressor of the utility model cooling fan be poroid spline structure surveys exploded perspective view;
Fig. 2 is that the assembly structure of the embodiment of the utility model shown in Fig. 1 analyses and observe axonometric drawing;
The axle of Fig. 3 to be the locking rotation structure of a kind of air compressor of the utility model cooling fan be key shape boss-shaped spline structure surveys exploded perspective view;
Fig. 4 is that the assembly structure of the embodiment of the utility model shown in Fig. 3 analyses and observe axonometric drawing;
The axle of Fig. 5 to be the locking rotation structure of a kind of air compressor of the utility model cooling fan be round boss shape spline structure surveys exploded perspective view;
The assembly structure of Fig. 6 to be the locking rotation structure of a kind of air compressor of the utility model cooling fan be groove-like analyses and observe axonometric drawing.
Embodiment
With specific embodiment, the utility model is further described below, see Fig. 1-6:
The locking rotation structure of a kind of air compressor cooling fan, comprise and bent axle 1 (as shown in Figures 1 to 6) or the wheel hub 2 be connected with motor shaft (not shown), annular spread flabellum 3 on the hub 2, wheel hub 2 and flabellum 3 rotate by bent axle 1 or by the driving following together with them of motor shaft.Characteristic of the present utility model is: at wheel hub 2 or/and flabellum 3 is provided with spline structure 4, described spline structure 4 is biased layout relative to the rotational axis O1 of fan, the so-called biased agent structure (namely producing position and component that opposing fan rotates relative to bent axle 1 or motor shaft circumference) referring to spline structure 4 has certain distance with rotational axis O1, because this spline structure 4 carries out biased setting, therefore a larger stop throw of eccentric can be obtained, in other words this throw of eccentric constitutes the main body that spline structure 4 resists the stop arm of force that fan circumferentially rotates relative to bent axle 1 or motor shaft, when compressor causes cooling fan to derive from round inertia torque because rotating and stop, because being present in of this stop throw of eccentric to produce the stop moment of resisting above-mentioned round inertia torque, thus can guarantee that cooling fan does not occur to loosen rotation relative to bent axle 1 or motor shaft.It is to be noted, spline structure 4 can directly carry out being connected with the body of bent axle 1 and also can be connected with the extension body of bent axle 1, the extension body of so-called bent axle 1 had both comprised the equilibrium block 1a (see Fig. 1 to Fig. 6) of bent axle 1, also comprise other form with the component of bent axle 1 integral production or the component (not shown) that is fastenedly connected with bent axle 1, spline structure 4 directly can also carry out being connected (not shown) and also can carry out being connected (not shown) with the extension body of motor shaft with the body of motor shaft, the extension body of so-called motor shaft comprises various forms of with the component of motor shaft integral production or the component (not shown) be fastenedly connected with motor shaft.Also it is to be noted in addition, the said flabellum of the utility model 3 had both comprised the extension body that traditional sheet blade also comprises blade, such as all belong to the category of blade extension body with water conservancy diversion backboard 3a, the water conservancy diversion endless belt 3b and connecting plate component 3c (see Fig. 1) etc. of blade unitary rotation, wherein the function of water conservancy diversion backboard 3a is mainly used for guiding that and constraint air-flow does radial flowing, the function of water conservancy diversion endless belt 3b is mainly used for guiding and constraint air-flow does axial flowing, the function of connecting plate component 3c is mainly connected and drives flabellum 3.In addition for simplicity, the body of bent axle 1 can be referred to as crankshaft body, the extension body of bent axle 1 is referred to as bent axle extension body, the body of motor shaft is referred to as motor shaft body, the extension body of motor shaft is referred to as motor shaft extension body, the extension body of blade is referred to as blade extension body.
Spline structure 4 of the present utility model can be made as cavernous structure 4a (see Fig. 1 and Fig. 2), now can utilize screw 44a or/and pin component 44b is inserted through this Kong Eryu crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body connects; It should be noted that, cavernous structure 4a mentioned here had both comprised various circular port and irregularly-shaped hole also comprises tapped hole, when it for (not shown) during thread pore structure even can also adopt bolt to intert crankshaft body or bent axle extension body or adopt bolt to intert motor shaft body or motor shaft extension body and be fastenedly connected (not shown) with this tapped hole.
Spline structure 4 of the present utility model can be made as boss-shaped structure 4b (see Fig. 3, Fig. 4 and Fig. 5), the convex cylinder (not shown) of also can be dome column (as shown in Figure 5) can also be other shape that wherein shape of boss-shaped structure 4b can be convex key-like (as shown in Figure 3 and Figure 4), now at crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body offer the groove 5a (Fig. 3 and Fig. 4 gives the example offering groove 5a on the equilibrium block 1a of bent axle extension body) or hole 5b (Fig. 5 gives the example offering hole 5b on the equilibrium block 1a of bent axle extension body) that correspond, this boss-shaped structure 4b and crankshaft body, bent axle extension body, groove 5a (see Fig. 3 with Fig. 4) on motor shaft body or motor shaft extension body or hole 5b is connected cooperation (see Fig. 5), it should be noted that groove 5a can be the groove (not shown) of heavy hole shape also can be the notch-like (as shown in Figure 3 and Figure 4) of nick shaped, hole 5b can be through hole (see Fig. 5) in addition also can be blind hole (not shown), the various irregularly-shaped hole (not shown)s of can be circular hole (as shown in Figure 5) also can be other form.
Spline structure 4 of the present utility model can be groove-like structure 4c (see Fig. 6), now on crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body, offer the boss 6a (as shown in Figure 6) corresponded or stud (not shown), this groove-like structure 4c is connected with above-mentioned boss 6a or stud; It should be noted that, groove 4c can be heavy hole shape groove (as shown in Figure 6), also can be the notch-like (not shown) of nick shaped, boss 6a can be convex chain structure (as shown in Figure 6) in addition also can be dome column structure (not shown), and this outer lug boss 6a can also be the boss structure (not shown) of other form.
Spline structure 4 of the present utility model also can be recessed seam shape structure (not shown), crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body offer the seam boss, the seam shaft shoulder, the seam backing pin (not shown) that correspond, and this recessed seam shape structure is connected with above-mentioned seam boss, the seam shaft shoulder or seam backing pin.
Spline structure 4 of the present utility model can also be male half coupling shape structure (not shown), crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body offer correspond seam groove, seam hole or seam arc, this male half coupling 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 spline structure 4 of the present utility model both independently can adopt the associating employing that also can combine, employing can also be combined together with traditional locking rotation structure, the anti-loosing effect of fan can be made so better.
The advantage that the utility model is given prominence to compared to existing technology is: adopt at wheel hub 2 or/and flabellum 3 arranges spline structure 4, and allow spline structure 4 relative to the rotational axis O1 of fan in biased layout, its throw of eccentric can be more many greatly than traditional stop radius, therefore the moment that opposing fan pine turns can effectively be amplified, in other words the spline ability of fan is strengthened, thus improves the functional reliability of compressor.
Above-described embodiment is only one of preferred embodiment of the present utility model; not limit protection domain of the present utility model according to this; therefore: all various equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by within protection domain of the present utility model.
Claims (6)
1. the locking rotation structure of air compressor cooling fan, comprise and bent axle or the wheel hub be connected with motor shaft, the flabellum of annular spread on wheel hub, it is characterized in that: at wheel hub or/and flabellum is provided with spline structure, described spline structure is biased layout relative to the rotational axis of fan.
2. the locking rotation structure of air compressor cooling fan as claimed in claim 1, it is characterized in that: described spline structure is cavernous structure, utilize screw or pin component intert this Kong Eryu crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body connect.
3. the locking rotation structure of air compressor cooling fan as claimed in claim 1, is characterized in that: described spline structure is boss-shaped structure, and is connected with the groove on crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body or hole.
4. the locking rotation structure of air compressor cooling fan as claimed in claim 1, is characterized in that: described spline structure is groove-like structure, and is connected with the boss on crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body or stud.
5. the locking rotation structure of air compressor cooling fan as claimed in claim 1, it is characterized in that: described spline structure is recessed seam shape structure, and is connected with seam boss, the seam shaft shoulder or seam backing pin on crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body.
6. the locking rotation structure of air compressor cooling fan as claimed in claim 1, it is characterized in that: described spline structure is male half coupling shape structure, and be connected with the seam groove on crankshaft body, bent axle extension body, motor shaft body or motor shaft extension body, seam hole or seam arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420870586.2U CN204402804U (en) | 2014-12-31 | 2014-12-31 | The locking rotation structure of a kind of air compressor cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420870586.2U CN204402804U (en) | 2014-12-31 | 2014-12-31 | The locking rotation structure of a kind of air compressor cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402804U true CN204402804U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420870586.2U Withdrawn - After Issue CN204402804U (en) | 2014-12-31 | 2014-12-31 | The locking rotation structure of a kind of air compressor cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402804U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533759A (en) * | 2014-12-31 | 2015-04-22 | 浙江鸿友压缩机制造有限公司 | Anti-looseness structure for air compressor cooling fan |
| WO2016107399A1 (en) * | 2014-12-31 | 2016-07-07 | 浙江鸿友压缩机制造有限公司 | Air compressor crankshaft |
| CN106224357A (en) * | 2015-08-06 | 2016-12-14 | 杨东佐 | A kind of wheel |
-
2014
- 2014-12-31 CN CN201420870586.2U patent/CN204402804U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533759A (en) * | 2014-12-31 | 2015-04-22 | 浙江鸿友压缩机制造有限公司 | Anti-looseness structure for air compressor cooling fan |
| WO2016107399A1 (en) * | 2014-12-31 | 2016-07-07 | 浙江鸿友压缩机制造有限公司 | Air compressor crankshaft |
| CN104533759B (en) * | 2014-12-31 | 2017-05-17 | 浙江鸿友压缩机制造有限公司 | Anti-looseness structure for air compressor cooling fan |
| CN106224357A (en) * | 2015-08-06 | 2016-12-14 | 杨东佐 | A kind of wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150617 Effective date of abandoning: 20170517 |
|
| AV01 | Patent right actively abandoned |