CN205123506U - Grease proofing gasket of fan blade formula - Google Patents
Grease proofing gasket of fan blade formula Download PDFInfo
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- CN205123506U CN205123506U CN201520984550.1U CN201520984550U CN205123506U CN 205123506 U CN205123506 U CN 205123506U CN 201520984550 U CN201520984550 U CN 201520984550U CN 205123506 U CN205123506 U CN 205123506U
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- panel
- fan blade
- axle sleeve
- grease proofing
- blade type
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Abstract
The utility model provides a grease proofing gasket of fan blade formula, between its motor bearing and commutator who is set up at the motor, including axle sleeve, panel, wherein, the axle sleeve internal diameter forms interference fit with the motor shaft external diameter, the panel cover is established on the axle sleeve, the face plate thickness is lighter than the thickness of axle sleeve, the panel periphery evenly is provided with a plurality of fan blades along circumference. In addition, be in still be provided with the follow on the panel the outside bellied strengthening rib of panel surface. The utility model provides a grease proofing gasket of fan blade formula adopts that axle sleeve plus panel, impeller form strengthening rib are used on the panel, fan blade plus the compact structure on the panel, and function through the combination between axle sleeve, panel, strengthening rib and the fan blade is played grease proofing, heat dissipation simultaneously and is adjusted the clearance is favorable to using in the limited motor end cover in space.
Description
Technical field
The utility model relates to the grease proofing pad of a kind of fan blade type, particularly relates to the grease proofing pad of a kind of fan blade type for motor, belongs to technical field of motors.
Background technology
Motor generally comprises the motor shaft be set in bearing, in order to reduce the friction between motor shaft and bearing, usually can be coated with lubricating oil in bearing or arranging containing asphalt felt on bearing.Commutator is arranged on the side of bearing usually, in order to prevent greasy dirt from entering commutator, between bearing and commutator, is usually provided with grease proofing pad.But existing grease proofing pad function singleness.Can play the pad of grease proofing effect, the grease proofing pad of such as, spill shown in Fig. 1 and Fig. 2 is unfavorable for heat radiation, and the pad of good heat dissipation usually can not be grease proofing well.In order to determine good grease proofing and heat sinking function, usually needing several pad to be combined, making electric machine structure more complicated, and not easily assemble.
Utility model content
The purpose of this utility model is to provide the grease proofing pad of a kind of fan blade type, uses same part to realize problem that is grease proofing, the three kinds of functions in gap of dispelling the heat, regulate to solve in limited space.
The utility model object is achieved through the following technical solutions:
The grease proofing pad of a kind of fan blade type, it is arranged between the motor bearings of motor and commutator, comprises axle sleeve, panel, wherein,
Described sleeve diameter and motor shaft major diameter fit, described axle sleeve and described motor shaft form interference fit;
Described panel is set on described axle sleeve; The thickness of described panel is less than the thickness of described axle sleeve;
Multiple fan blade is circumferentially provided with in described panel periphery.
Preferably, described axle sleeve comprises Part I and Part II, and described Part I and Part II have identical internal diameter, and the external diameter of described Part I is greater than the external diameter of described Part II.
More preferably, described axle sleeve Part I is used for contacting with motor shaft bearing surface.
Preferably, the external diameter of described panel is greater than the diameter of described motor bearings and described commutator.
More preferably, described panel is set on the Part II of described axle sleeve; The thickness of described panel is less than the thickness of the Part II of described axle sleeve.
Preferably, described fan blade is evenly arranged along the periphery of described panel.
More preferably, described fan blade is the thin plate arranged perpendicular to described panel periphery; Described thin plate width is in the axial direction greater than the width of described panel.
Preferably, the reinforcement from described panel outer surface outwardly convex is provided with on the panel.
More preferably, described reinforcement, generally in impeller shape, comprises many strip convex tendons of the inner port edge coordinated with the outer surface of described axle sleeve outwards in divergent shape from described panel.
More preferably, described reinforcement also comprises the ring-type convex tendon connecting described strip convex tendon.
Preferably, described axle sleeve, panel fan blade and reinforcement is formed in one or sub-unit assembles.
The grease proofing pad of the fan blade type that the utility model provides adopts axle sleeve additional panel, impeller shape reinforcement is applied on panel, fan blade is added to compact structure on panel, play grease proofing, heat radiation by axle sleeve, panel, combination between reinforcement and fan blade simultaneously and regulate the function in gap, being conducive to using in the electric motor end cap of limited space.
Accompanying drawing explanation
According to drawings and embodiments the utility model is described in further detail below.
Fig. 1 shows the assembling schematic diagram of motor bearings in prior art, commutator and pad.
Fig. 2 shows the schematic diagram of the grease proofing pad of a kind of spill of the prior art.
Fig. 3 is the schematic perspective view of the grease proofing pad of fan blade type that the utility model embodiment provides.
Fig. 4 is the front schematic view of the grease proofing pad of fan blade type that the utility model embodiment provides.
Fig. 5 is the schematic rear view relative to Fig. 4 of the grease proofing pad of fan blade type that the utility model embodiment provides.
Fig. 6 is the cutting plane schematic diagram of the vertical center line along the grease proofing pad of the fan blade type shown in Fig. 4.
Fig. 7 be along the A-A shown in Fig. 4 to cutting plane schematic diagram.
Embodiment
Below preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
As shown in fig. 1, motor generally includes the bearing be contained in electric motor end cap, commutator and the various pads between bearing and commutator, such as metallic gasket, non-metallic gasket, grease proofing pad etc.In order to prevent the lubricating oil in bearing from entering commutator, usually grease proofing pad must be provided with.The usual volume of the grease proofing pad of spill is as shown in Figure 2 comparatively large, is unfavorable for using in the confined space in electric motor end cap.By following embodiment of the present utility model, can by the heat radiation of metallic gasket, non-metallic gasket and grease proofing pad, adjustment gap, anti-wet goods function i ntegration in same pad, conserve space, easy to use.
As shown in Figure 3, the utility model embodiment provides a kind of fan blade type grease proofing pad, and it is arranged between the motor bearings of motor and commutator, comprises axle sleeve 1 and panel 2 generally.
The internal diameter of axle sleeve 1 and the external diameter of motor shaft form interference fit, and the internal diameter of axle sleeve can change according to the external diameter of the motor shaft matched.Axle sleeve 1 length in the axial direction can change according to the gap length between bearing and commutator, and axle sleeve radial thickness can change according to its internal diameter size and pressure.Preferably, as shown in Figures 4 to 7, axle sleeve 1 comprises Part I 11 and Part II 12.Part I 11 and the Part II 12 of axle sleeve have identical internal diameter, but the outer diameter D 1 of Part I 11 is greater than the outer diameter D 2 of Part II 12.The Part I 11 of axle sleeve contacts with motor shaft bearing surface, can with bearing surface relative sliding, friction.Axle sleeve 1 can play the effect of pad, in order to eliminate gap or as medium.
Panel 2 can be set on axle sleeve 1, also can be one-body molded with axle sleeve 1.As shown in Fig. 6 and Fig. 7, the thickness of panel 2 is less than the thickness of axle sleeve 1.The external diameter of panel 2 can designed size according to actual needs, but the external diameter of panel 2 should be greater than the diameter of motor bearings and commutator, prevents grease from being transitioned into another side with the assembly on separately both sides.In addition, as shown in FIG. 6 and 7, panel 2 is set on the Part II 12 of axle sleeve, and the thickness of panel 2 is less than the thickness of axle sleeve Part II 12, thus form certain gap between panel 2 and commutator.Therefore, when panel 2 is independent part with axle sleeve 1, one end of panel 2 is resisted against on the end face of Part I 11 of axle sleeve, and the other end is free end.Increase the structure of panel 2 in the outer ring of axle sleeve 1, not only can increase the area of dissipation of axle sleeve (pad), and panel 2 also has oil-resistant function, the oily juice in bearing can be prevented to be transitioned into the other end of axle sleeve.
Multiple independently fan blade 3 is circumferentially provided with in panel periphery.Preferably, as shown in Figure 4, fan blade 3 evenly arranges along the periphery of panel 2.Fan blade 3 shown in accompanying drawing is the thin plate arranged perpendicular to the periphery of panel 2, and described thin plate width is in the axial direction greater than the width of panel 3.But should be appreciated that and the quantity to fan blade 3, shape and angle can be needed to be designed according to the physical dimension etc. of the direction of rotation of pad, motor product, make it in pad rotary course, produce air quantity, take away the heat of the assembly on pad both sides.Fan blade is conducive to the radiating and cooling of axle sleeve two ends parts, and for brush motor, fan blade also can be used for removing commutation carbon dust, improves commutation.
Panel 2 is provided with the outwardly protruding reinforcement 4 from panel 2.Only reinforcement 4 can be set on panel side, also reinforcement 4 can be all set on panel both sides.Reinforcement 4 generally in impeller shape, comprise from panel 2, the inner port edge that coordinates with the outer surface of axle sleeve 1 is outwards many strip convex tendons 41 of divergent shape.In addition, reinforcement 4 also comprises the ring-type convex tendon 42 connecting many strip convex tendons 41.The concrete structure of reinforcement 4 be shown more clearly in as shown in FIG. 6 and 7 along in the cut-away illustration of different directions.Reinforcement 4 is mainly used in the intensity of reinforced panel.Meanwhile, the structure of reinforcement 4 can carry out different designs according to the size of the stressing conditions of axle sleeve 1 and panel 2.If the integral-rotation direction according to pad is designed the angle of reinforcement and shape, such as, convex tendon 41 can form certain angle with the outer surface of axle sleeve, such as 60 degree, reinforcement 4 can also play the effect of centrifugation blade, produces the heat that air quantity takes away the assembly on pad both sides.Therefore, the mechanical strength of reinforcement 4 not only reinforced panel, by the direction of rotation of axle sleeve, in conjunction with fluidics theory, design reinforcement, as impeller shape, can play the effect of fan blade.When panel both sides all arrange reinforcement, can be different impeller shapes by the reinforcing rib design of both sides according to different fitting surface structure and rotation direction.The effect that impeller shape reinforcement can also play centrifugal flow guiding throws away unnecessary grease.
In the grease proofing pad of the fan blade type that above-described embodiment provides, axle sleeve, panel, fan blade and reinforcement can be one-body molded with such as injection molding, also can be that sub-unit assembles, the parts of each parts can be machined components also can be sinter molding.
The grease proofing pad of the fan blade type that the utility model embodiment provides by the function i ntegration of fan blade, reinforcement, axle sleeve, panel in same product, and each functions such as grease proofing, heat radiation, adjustment gap are combined, be more conducive to use in the confined space in electric motor end cap.In addition, prove through experiment and calculating, the grease proofing pad of the fan blade type that the utility model provides can improve the commutator life-span to twice, improves bearing life to three times.
Technology contents of the present utility model and technical characteristic have disclosed as above; but those of ordinary skill in the art still may do all replacement and the modification that do not deviate from the utility model spirit based on teaching of the present utility model and announcement; therefore; the utility model protection range should be not limited to the content that embodiment discloses; and various do not deviate from replacement of the present utility model and modification should be comprised, and contained by the utility model claim.
Claims (11)
1. the grease proofing pad of fan blade type, it is arranged between the motor bearings of motor and commutator, it is characterized in that, comprises axle sleeve, panel, wherein,
Described sleeve diameter and motor shaft major diameter fit, described axle sleeve and described motor shaft form interference fit;
Described panel is set on described axle sleeve; The thickness of described panel is less than the thickness of described axle sleeve;
Multiple fan blade is circumferentially provided with in described panel periphery.
2. the grease proofing pad of fan blade type as claimed in claim 1, it is characterized in that, described axle sleeve comprises Part I and Part II, and described Part I and Part II have identical internal diameter, and the external diameter of described Part I is greater than the external diameter of described Part II.
3. the grease proofing pad of fan blade type as claimed in claim 2, is characterized in that, described axle sleeve Part I is used for contacting with motor shaft bearing surface.
4. the grease proofing pad of fan blade type as claimed in claim 1, it is characterized in that, the external diameter of described panel is greater than the diameter of described motor bearings and described commutator.
5. the grease proofing pad of fan blade type as claimed in claim 2, it is characterized in that, described panel is set on the Part II of described axle sleeve; The thickness of described panel is less than the thickness of the Part II of described axle sleeve.
6. the grease proofing pad of fan blade type as claimed in claim 1, it is characterized in that, described fan blade is evenly arranged along the periphery of described panel.
7. the grease proofing pad of fan blade type as claimed in claim 6, is characterized in that, described fan blade is the thin plate arranged perpendicular to described panel periphery; Described thin plate width is in the axial direction greater than the width of described panel.
8. the grease proofing pad of fan blade type as claimed in claim 1, is characterized in that, be provided with the reinforcement from described panel outer surface outwardly convex on the panel.
9. the grease proofing pad of fan blade type as claimed in claim 8, is characterized in that, described reinforcement, generally in impeller shape, comprises many strip convex tendons of the inner port edge coordinated with the outer surface of described axle sleeve outwards in divergent shape from described panel.
10. the grease proofing pad of fan blade type as claimed in claim 9, it is characterized in that, described reinforcement also comprises the ring-type convex tendon connecting described strip convex tendon.
11. grease proofing pads of fan blade type according to any one of claim 1-10, is characterized in that, described axle sleeve, panel fan blade and reinforcement is formed in one or sub-unit assembles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520984550.1U CN205123506U (en) | 2015-12-01 | 2015-12-01 | Grease proofing gasket of fan blade formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520984550.1U CN205123506U (en) | 2015-12-01 | 2015-12-01 | Grease proofing gasket of fan blade formula |
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| Publication Number | Publication Date |
|---|---|
| CN205123506U true CN205123506U (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520984550.1U Active CN205123506U (en) | 2015-12-01 | 2015-12-01 | Grease proofing gasket of fan blade formula |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337461A (en) * | 2015-12-01 | 2016-02-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Fan-blade type oil-proof spacer |
-
2015
- 2015-12-01 CN CN201520984550.1U patent/CN205123506U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337461A (en) * | 2015-12-01 | 2016-02-17 | 珠海格力节能环保制冷技术研究中心有限公司 | Fan-blade type oil-proof spacer |
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| GR01 | Patent grant |