CN106555819A - A kind of DC brushless motor lubricating oil internal circulation apparatus - Google Patents
A kind of DC brushless motor lubricating oil internal circulation apparatus Download PDFInfo
- Publication number
- CN106555819A CN106555819A CN201710033208.7A CN201710033208A CN106555819A CN 106555819 A CN106555819 A CN 106555819A CN 201710033208 A CN201710033208 A CN 201710033208A CN 106555819 A CN106555819 A CN 106555819A
- Authority
- CN
- China
- Prior art keywords
- bearing
- stop collar
- circle
- lubricating oil
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/128—Porous bearings, e.g. bushes of sintered alloy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
- F16C33/104—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing in a porous body, e.g. oil impregnated sintered sleeve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/1065—Grooves on a bearing surface for distributing or collecting the liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Abstract
The present invention provides a kind of brshless DC motor lubricating oil internal circulation apparatus, including oiliness bearing and stop collar, it is characterised in that：The oiliness bearing and stop collar are powder sintered porous material；The oiliness bearing is sequentially fixed on motor shaft with stop collar；The oiliness bearing includes upper bearing (metal) circle, lower bearing circle and axis hole；The stop collar is T-type structure, and the spacing set upper side is relative with oiliness bearing upper bearing (metal) circle；The stop collar upper surface is provided with some rifling raised lines, and the rifling raised line is gathered from stop collar marginal surface to center.The present invention has the memory space for not only expanding lubricating oil, moreover it is possible to realize the circulation of lubricating oil, it is possible to increase the service life of motor.
Description
Technical field
The invention belongs to lubricating oil interior circulation field, more particularly to a kind of DC brushless motor lubricating oil internal circulation apparatus.
Background technology
What the service life of brshless DC motor was largely determined by the loss of lubricating oil.Brshless DC motor fan
It is widely used in the radiating such as machines such as notebook computer, refrigerators.Except the characteristic that must possess good low noise, also need
Will long-time stable work.The patent No.：200710077333.4 a kind of fan is disclosed, it is disclosed that comprising a kind of profit
The fan of lubricating oil interior circulation, is mainly improved by adding oil scraper ring above oiliness bearing, and then realizes the self-loopa of lubricating oil.
But a little problem is there is also, such as：Oil scraper ring is powder sintered ring, can only absorb the lubricating oil on oiliness bearing top, it is impossible to opposite side
The lubricating oil that edge throws away is reclaimed.
The content of the invention
To solve an above-mentioned difficult problem, it is an object of the invention to propose a kind of lubricating oil internal circulation apparatus, extend direct current generator
Service life.Specific embodiment is as follows：
A kind of brshless DC motor lubricating oil internal circulation apparatus, including oiliness bearing and stop collar, it is characterised in that：It is described
Oiliness bearing and stop collar are powder sintered porous material；The oiliness bearing is sequentially fixed on motor shaft with stop collar；
The oiliness bearing includes upper bearing (metal) circle, lower bearing circle and axis hole；The stop collar be T-type structure, the spacing set upper side with
The upper bearing (metal) circle of oiliness bearing is relative；The stop collar upper surface is provided with some rifling raised lines, the rifling raised line
Highly less than the 1/25 of whole stop collar height, the rifling raised line is gathered from stop collar marginal surface to axle center.
Preferably, the upper bearing (metal) circle lower end of the oiliness bearing is provided with matrix hollow region, and the lower bearing circle upper end is
Convex entity, the diameter of the matrix hollow region are less than the diameter of convex entity, and the depth of the matrix hollow region is less than
The height of convex entity, is connected with the interference of upper bearing (metal) circle for lower bearing circle；The lower bearing circle top convex entity is provided with
Hollow region, the diameter with diameter greater than axis hole of the hollow region.
Preferably, installation gap is provided between the upper bearing (metal) circle and lower bearing circle；The upper bearing (metal) circle outside curve table
Face is provided with some line style oil storage tanks, for increasing lubricating oil contact area, stores more lubricating oil；The lower bearing circle it is convex
Type entity upper end is provided with installation chamfering, when the matrix hollow area of upper bearing (metal) circle is connected to by interference mode, chamfering and matrix
Hollow area forms region of no pressure, for increasing lubricating oil storage area；The upper bearing (metal) loop material is red copper base；The lower bearing circle
Material is brass base.
When motor shaft is rotated, oil film is formed between motor shaft and oiliness bearing, under the action of the centrifugal force along motor axial direction
Upper motion.On the one hand the setting of stop collar limits the motion of lubricating oil, on the other hand due to the presence of rifling raised line so that
Lubricating oil can be gathered at axle center under the guiding function of rifling.It is in as oiliness bearing is approximately in rotation process
Vacuum, with lacking for lubricating oil, pressure can be reduced, and the lubricating oil for now converging at stop collar can be in the effect of pressure
Under, by the line style oil storage tank 104 on oiliness bearing surface, the self-loopa that lubricating oil is formed inside oiliness bearing 1 is flowed into, and then
Extend the service life of oiliness bearing.
Description of the drawings
Fig. 1 installs profile for a kind of DC brushless motor lubricating oil internal circulation apparatus proposed by the present invention.
A kind of oil-bearing structure figure of DC brushless motor lubricating oil internal circulation apparatus that Fig. 2 is provided for the present invention.
A kind of stop collar structure chart of DC brushless motor lubricating oil internal circulation apparatus that Fig. 3 is provided for the present invention.
Fig. 4 is the preferred embodiments of the present invention.
Description of reference numerals：1- oiliness bearings, 2- stop collars, 3- motor shafts, 4- rifling raised lines, 101- upper bearing (metal) circles,
102- lower bearing circles, 103- hollow regions, 104- line style oil storage tanks, 105- chamferings, 5- iron core stators, 6- accepting holes.
Specific embodiment
Such as Fig. 1, a kind of brshless DC motor lubricating oil internal circulation apparatus, including oiliness bearing 1 and stop collar 2, its feature
It is：The oiliness bearing 1 and stop collar 2 are powder sintered porous material；The oiliness bearing 1 is solid successively with stop collar 2
It is scheduled on motor shaft 3；The oiliness bearing includes upper bearing (metal) circle 101, lower bearing circle 102 and axis hole；The stop collar 2 is T-shaped
Structure, 2 upper end of the stop collar are relative with the upper bearing (metal) circle 101 of oiliness bearing；The stop collar upper surface is provided with some next
Multiple line raised line 4, less than the 1/25 of 2 height of whole stop collar, the rifling raised line 2 is certainly for the height of the rifling raised line 4
5 marginal surface of stop collar is gathered to 3 axle center of motor.
Preferably, 101 lower end of upper bearing (metal) circle of the oiliness bearing 1 is provided with matrix hollow region, the lower bearing circle 102
Upper end is convex entity, the diameter of the diameter of the matrix hollow region less than convex entity, the depth of the matrix hollow region
Degree is connected with the interference of upper bearing (metal) circle 101 for lower bearing circle 102 less than the height of convex entity；On the lower bearing circle 102
Portion's convex entity is provided with hollow region, the diameter with diameter greater than axis hole of the hollow region 103.
Preferably, installation gap is provided between the upper bearing (metal) circle 101 and lower bearing circle 102；Outside the upper bearing (metal) circle 101
N-Side surf surface is provided with some line style oil storage tanks 104, for increasing lubricating oil contact area, stores more lubricating oil；It is described
The convex entity upper end of lower bearing circle 102 is provided with installation chamfering 105, when being connected in the matrix of upper bearing (metal) circle by interference mode
During dead zone, chamfering 105 forms region of no pressure with matrix hollow area, for increasing lubricating oil storage area；101 material of upper bearing (metal) circle
Expect for red copper base；102 material of lower bearing circle is brass base.
As shown in figure 4, being a preferred embodiment of the present invention.A kind of DC brushless motor lubricating oil internal circulation apparatus,
It is used in fan.Described device is arranged in the accepting hole 6 of fan mounting seat, and 6 bottom of accepting hole is sealing structure, is not existed
The situation of oil leak.6 periphery of accepting hole is provided with stator core 5, and 5 top of stator core is provided with opening, and section is trapezoidal, for fixing
Stop collar 2, and the amount of lubricating oil can be controlled.When motor shaft 3 is rotated, oil film between motor shaft 3 and oiliness bearing 1, is formed, formed
Sealing is hollow, is moved along motor shaft 3 upwards under the action of the centrifugal force.On the one hand arranging for stop collar 2 limit lubricating oil
Motion, on the other hand due to the presence of rifling raised line 4 so that lubricating oil can gather electricity under the guiding function of rifling
3 center of arbor.As oiliness bearing 1 is approximately in vacuum in rotation process, with lacking for lubricating oil, pressure meeting
Reduce, the lubricating oil for now converging at stop collar 2 can be in the presence of pressure, by the line style oil storage on 1 surface of oiliness bearing
Groove, flows into the self-loopa that lubricating oil is formed inside oiliness bearing 1, and then extends the service life of motor.
The preferred embodiment for the present invention is explained in detail above in conjunction with accompanying drawing, but the invention is not restricted to above-mentioned enforcement
Mode, in the ken that those of ordinary skill in the art possess, can be with the premise of without departing from present inventive concept
Make a variety of changes.
Many other changes and remodeling can be made without departing from the spirit and scope of the present invention.It should be appreciated that the present invention is not
It is limited to specific embodiment, the scope of the present invention is defined by the following claims.
Claims (3)
1. a kind of brshless DC motor lubricating oil internal circulation apparatus, including oiliness bearing and stop collar, it is characterised in that：It is described to contain
Oil bearing and stop collar are powder sintered porous material；The oiliness bearing is sequentially fixed on motor shaft with stop collar；Institute
Stating oiliness bearing includes upper bearing (metal) circle, lower bearing circle and axis hole；The stop collar be T-type structure, the spacing set upper side with contain
The upper bearing (metal) circle of oil bearing is relative；The stop collar upper surface is provided with some rifling raised lines, the height of the rifling raised line
Degree less than whole stop collar height 1/25, the rifling raised line is gathered from stop collar marginal surface to axle center.
2. a kind of brshless DC motor lubricating oil internal circulation apparatus according to claim 1, it is characterised in that：The oil-containing
The upper bearing (metal) circle lower end of bearing is provided with matrix hollow region, and the lower bearing circle upper end is convex entity, the matrix hollow area
Diameter of the diameter in domain less than convex entity, the depth of the matrix hollow region are less than the height of convex entity；The lower axle
Cheng Quan tops convex entity is provided with hollow region, the diameter with diameter greater than axis hole of the hollow region.
3. a kind of brshless DC motor lubricating oil internal circulation apparatus according to claim 1, it is characterised in that：The upper axle
Hold；The upper bearing (metal) circle outside curve surface is provided with some line style oil storage tanks；Institute
The convex entity upper end for stating lower bearing circle is provided with installation chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033208.7A CN106555819A (en) | 2017-01-16 | 2017-01-16 | A kind of DC brushless motor lubricating oil internal circulation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033208.7A CN106555819A (en) | 2017-01-16 | 2017-01-16 | A kind of DC brushless motor lubricating oil internal circulation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106555819A true CN106555819A (en) | 2017-04-05 |
Family
ID=58446364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710033208.7A Pending CN106555819A (en) | 2017-01-16 | 2017-01-16 | A kind of DC brushless motor lubricating oil internal circulation apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106555819A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5895119A (en) * | 1995-11-30 | 1999-04-20 | Hitachi Powered Metals Co., Ltd. | Composite porous bearing |
| JP2001271828A (en) * | 2000-03-28 | 2001-10-05 | Ntn Corp | Dynamic pressure type oil-impregnated sintered bearing unit |
| US20020102039A1 (en) * | 2001-01-26 | 2002-08-01 | Sunonwealth Electric Machine Industry Co. , Ltd | Combination structure for oil-impregnated bearing |
| US20050123224A1 (en) * | 2003-12-09 | 2005-06-09 | Sunonwealth Electric Machine Industry Co., Ltd. | Dustproof structure for a sleeve bearing |
| CN2777251Y (en) * | 2005-01-31 | 2006-05-03 | 富准精密工业(深圳)有限公司 | Fan and its oil storage device |
| US20060255674A1 (en) * | 2005-05-13 | 2006-11-16 | Delta Electronics, Inc. | Fan motor and oil-leak proof bearing system thereof |
| CN101392799A (en) * | 2007-09-21 | 2009-03-25 | 富准精密工业(深圳)有限公司 | Seal structure of oilless bearing and fan using the oilless bearing seal structure |
| CN105003814A (en) * | 2015-07-22 | 2015-10-28 | 佛山市威灵洗涤电机制造有限公司 | Lubricating-oil recycling system for oil-retaining bearing of motor |
| CN105937550A (en) * | 2015-03-06 | 2016-09-14 | 美蓓亚株式会社 | Bearing structure and air blower |
-
2017
- 2017-01-16 CN CN201710033208.7A patent/CN106555819A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5895119A (en) * | 1995-11-30 | 1999-04-20 | Hitachi Powered Metals Co., Ltd. | Composite porous bearing |
| JP2001271828A (en) * | 2000-03-28 | 2001-10-05 | Ntn Corp | Dynamic pressure type oil-impregnated sintered bearing unit |
| US20020102039A1 (en) * | 2001-01-26 | 2002-08-01 | Sunonwealth Electric Machine Industry Co. , Ltd | Combination structure for oil-impregnated bearing |
| US20050123224A1 (en) * | 2003-12-09 | 2005-06-09 | Sunonwealth Electric Machine Industry Co., Ltd. | Dustproof structure for a sleeve bearing |
| CN2777251Y (en) * | 2005-01-31 | 2006-05-03 | 富准精密工业(深圳)有限公司 | Fan and its oil storage device |
| US20060255674A1 (en) * | 2005-05-13 | 2006-11-16 | Delta Electronics, Inc. | Fan motor and oil-leak proof bearing system thereof |
| CN101392799A (en) * | 2007-09-21 | 2009-03-25 | 富准精密工业(深圳)有限公司 | Seal structure of oilless bearing and fan using the oilless bearing seal structure |
| CN105937550A (en) * | 2015-03-06 | 2016-09-14 | 美蓓亚株式会社 | Bearing structure and air blower |
| CN105003814A (en) * | 2015-07-22 | 2015-10-28 | 佛山市威灵洗涤电机制造有限公司 | Lubricating-oil recycling system for oil-retaining bearing of motor |
Non-Patent Citations (1)
| Title |
|---|
| 贾成厂: "烧结金属含油轴承", 《金属世界》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170405 |
|
| RJ01 | Rejection of invention patent application after publication |