CN206530605U - 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
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- CN206530605U CN206530605U CN201720054766.7U CN201720054766U CN206530605U CN 206530605 U CN206530605 U CN 206530605U CN 201720054766 U CN201720054766 U CN 201720054766U CN 206530605 U CN206530605 U CN 206530605U
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- bearing
- circle
- stop collar
- lubricating oil
- metal
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Abstract
The utility model 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 utility model 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 utility model belongs to lubricating oil interior circulation field, more particularly to a kind of DC brushless motor lubricating oil interior circulation dress
Put.
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 such as notebook computer, in the radiating of machine such as refrigerator.Except that must possess the characteristic of good low noise, also need
Being capable of long-time stable work.The patent No.：200710077333.4 a kind of fan is disclosed, it is disclosed that including one kind profit
The fan of lubricating oil interior circulation, main improve is above oiliness bearing to add oil scraper ring, and then realizes the self-loopa of lubricating oil.
But there is also a little problem, 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 is thrown away is reclaimed.
Utility model content
To solve above-mentioned problem, the purpose of this utility model is to propose a kind of lubricating oil internal circulation apparatus, extends direct current
The service life of motor.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
The 1/25 of whole stop collar height is highly no more than, 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 is 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 for lower bearing circle with the interference of upper bearing (metal) circle；The lower bearing circle top convex entity is provided with
Hollow region, the diameter of the hollow region is more than the diameter of axis hole.
Preferably, provided with installation gap 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 being connected to the matrix hollow area of upper bearing (metal) circle 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 based on red copper base；The lower axle
Loop material is held based on 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.Because oiliness bearing is approximately to be in rotation process
Vacuum, with lacking for lubricating oil, pressure can be reduced, now at stop collar converge lubricating oil can pressure effect
Under, by the line style oil storage tank 104 on oiliness bearing surface, flow into inside oiliness bearing 1, form the self-loopa of lubricating oil, and then
Extend the service life of oiliness bearing.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of DC brushless motor lubricating oil internal circulation apparatus install profile.
A kind of oil-bearing structure for DC brushless motor lubricating oil internal circulation apparatus that Fig. 2 provides for the utility model
Figure.
A kind of stop collar structure chart for DC brushless motor lubricating oil internal circulation apparatus that Fig. 3 provides for the utility model.
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.
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, the upper end of stop collar 2 is 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, the height of the rifling raised line 4 is no more than the 1/25 of the whole height of stop collar 2, and the rifling raised line 2 is certainly
The marginal surface of stop collar 5 is gathered to the axle center of motor 3.
Preferably, the lower end of upper bearing (metal) circle 101 of the oiliness bearing 1 is provided with matrix hollow region, the lower bearing circle 102
Upper end is convex entity, and the diameter of the matrix hollow region is less than the diameter of convex entity, the depth of the matrix hollow region
Degree is connected less than the height of convex entity for lower bearing circle 102 with the interference of upper bearing (metal) circle 101；On the lower bearing circle 102
Portion's convex entity is provided with hollow region, and the diameter of the hollow region 103 is more than the diameter of axis hole.
Preferably, provided with installation gap 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 chamfering 105 is installed, when being connected to by interference mode in the matrix of upper bearing (metal) circle
During dead zone, chamfering 105 forms region of no pressure with matrix hollow area, for increasing lubricating oil storage area；The material of upper bearing (metal) circle 101
Material is based on red copper base；The lower bearing loop material 102 is based on brass base.
As shown in figure 4, being a preferred embodiment of the present utility model.A kind of DC brushless motor lubricating oil interior circulation dress
Put, be used in fan.Described device is arranged in the accepting hole 6 of fan mounting seat, and the bottom of accepting hole 6 is sealing structure, no
There is a situation where oil leak.The periphery of accepting hole 6 is provided with stator core 5, and the top of stator core 5 is provided with opening, and section is trapezoidal, is used for
Fixed stop collar 2, and the amount of lubricating oil can be controlled.When motor shaft 3 is rotated, oil film is formed between motor shaft 3 and oiliness bearing 1,
Form sealing hollow, moved upwards along motor shaft 3 under the action of the centrifugal force.On the one hand the setting of stop collar 2 limits lubrication
The motion of oil, on the other hand due to the presence of rifling raised line 4 so that lubricating oil can be assembled under the guiding function of rifling
To the center of motor shaft 3.Because oiliness bearing 1 is approximately in vacuum, with lacking for lubricating oil, pressure in rotation process
It can reduce by force, the lubricating oil now converged at stop collar 2 can pass through the line style on the surface of oiliness bearing 1 in the presence of pressure
Oil storage tank, is flowed into inside oiliness bearing 1, forms the self-loopa of lubricating oil, and then extend the service life of motor.
The utility model preferred embodiment is explained in detail above in conjunction with accompanying drawing, but the utility model is not limited to
Above-mentioned embodiment, in the knowledge that those of ordinary skill in the art possess, can also not depart from the utility model
Made a variety of changes on the premise of objective.
Many other changes and remodeling can be made by not departing from spirit and scope of the present utility model.It should be appreciated that this reality
Specific embodiment is not limited to new, scope of the present utility model 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 is T-type structure, and the spacing set upper side is with containing
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 is no more than the 1/25 of whole stop collar height, and 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
The diameter in domain is less than the diameter of convex entity, and the depth of the matrix hollow region is less than the height of convex entity；The lower axle
Cheng Quan tops convex entity is provided with hollow region, and the diameter of the hollow region is more than the diameter of axis hole.
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 between circle and lower bearing circle provided with installation gap；The upper bearing (metal) circle outside curve surface is provided with some line style oil storage tanks；Institute
The convex entity upper end of lower bearing circle is stated provided with installation chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720054766.7U CN206530605U (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 |
|---|---|---|---|
| CN201720054766.7U CN206530605U (en) | 2017-01-16 | 2017-01-16 | A kind of DC brushless motor lubricating oil internal circulation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530605U true CN206530605U (en) | 2017-09-29 |
Family
ID=59920902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720054766.7U Active CN206530605U (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) | CN206530605U (en) |
-
2017
- 2017-01-16 CN CN201720054766.7U patent/CN206530605U/en active Active
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