CN203146397U - Oil circulation structure for oil-retaining bearing of fan motor - Google Patents
Oil circulation structure for oil-retaining bearing of fan motor Download PDFInfo
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- CN203146397U CN203146397U CN 201320051570 CN201320051570U CN203146397U CN 203146397 U CN203146397 U CN 203146397U CN 201320051570 CN201320051570 CN 201320051570 CN 201320051570 U CN201320051570 U CN 201320051570U CN 203146397 U CN203146397 U CN 203146397U
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- oil
- bearing
- rotor shaft
- shaft core
- coil holder
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Abstract
The utility model relates to the field of fans, in particular to an oil circulation structure for an oil-retaining bearing of a fan motor. The oil circulation structure is characterized by mainly comprising a bearing, a coil holder and a rotor shaft core. Oil guide gutters are reserved on the upper end face of the bearing, and are communicated with outer-ring oil grooves reserved on the outer wall of the bearing. The coil holder and the rotor shaft core form a first oil cavity. The rotor shaft core is penetratingly arranged on the bearing and is mounted on the coil holder with the bearing. According to the arrangement, the oil circulation structure is simple and practical, one-way circulation of lubricating oil is formed inside the oil circulation structure, and circulating lubricating oil can function greatly in reducing internal temperature, prolonging service life of the lubricating oil and fans.
Description
Technical field
The utility model relates to fan art, specifically relates to a kind of oil circulation structure of fan electromotor oil-impregnated bearing.
Background technique
Contain in the machinery that bearing rotates at some, can add lubricant oil on bearing and rotor shaft core usually, so that machine operation gets is more smooth and easy, this mode also is like this in fan art.The fan electromotor of common oil-containing structure is because lubricant oil can be followed the difference according to installation direction, lubricant oil can overflow the contact area of a core and bearing up or down, its being lubricated back and forth of can not circulating can cause lubricant oil to run off fast, the fan electromotor lost of life like this.
At present, fan structure is being improved aspect the saving of lubricant oil to some extent, though the hydraulic structure of improvement can make moderate progress to the saving of lubricant oil because of the bottom sealing, but still can not stop lubricant oil to throw away loss from the top of bearing and rotor shaft core, or lubricant oil rested on the effect that at all do not have on the bearing, after oil deterioration, the life-span namely comes to an end, and also influences the working life of fan; This situation is especially stood upside down even more serious when placing.
The model utility content
The utility model provides a kind of oil circulation structure of fan electromotor oil-impregnated bearing at the deficiencies in the prior art; It utilizes respond well characteristics and dark tool practicability with simple in structure and lubrication oil circulation.
In order to achieve the above object, the oil circulation structure of a kind of fan electromotor oil-impregnated bearing of the utility model mainly comprises:
One bearing, the upper-end surface of described bearing is provided with the Oil Guide ditch, this Oil Guide ditch communicates with outer endless-oil groove on being located at bearing outer wall, so just can make the lubricant oil of bearing upper end along the outside endless-oil groove of Oil Guide channel, and be back to by outer endless-oil groove on second oil pocket of bearing lower end; Need to prove that the Oil Guide ditch can be designed to different lines according to various needs with outer endless-oil groove;
One coil holder, described coil holder are combined with bearing and rotor shaft core and are formed first oil pocket, blocking the lubricant oil that when the rotor shaft core rotates at a high speed, throws away outward, and then the lubricant oil that blocks action of inertia lower edge Oil Guide ditch and outside endless-oil groove be back to second oil pocket;
One rotor shaft core, described rotor shaft core is arranged on the bearing and with bearing and is installed on the coil holder.
Preferably, the upper end of described rotor shaft core is provided with the Oil Guide annular groove, and the upper-end surface of this Oil Guide annular groove is lower than the upper-end surface of described first oil pocket, so that be thrown on first oil pocket along the lubricant oil of scurrying on the rotor shaft core is more effective.
Preferably, described coil holder is the coil holder that a kind of inboard of upper end is provided with the insulation of two protruding rings, so that it forms inserting structure when flabellum is combined.
Preferably, the outside of described coil holder is equiped with flabellum and shell; Described flabellum is provided with flinger ring, so that itself and coil holder form inserting structure.
As the further improvement of such scheme, the coil holder of the insulation of described pair of protruding ring is combined with the flabellum that is provided with flinger ring and is formed inserting structure, and this coil holder, flabellum, shell are formed with second oil pocket, the 3rd oil pocket and the 4th cavity with the rotor shaft core; Described second oil pocket is formed at the lower end of bearing, and it mainly acts on collecting and stores the lubricant oil that refluxes, in order to recycling again; The effect of described the 3rd oil pocket is minority is not blocked again by the lubricant oil that first oil pocket blocks.Thereby the lubricant oil that has prevented these minorities reaches on outside even the flabellum, causes the absorption dust to cause the rotor shaft core and disequilibrium; And the effect of the 4th cavity mainly is to prevent that external dust from entering inner the 3rd oil pocket and first oil pocket, thereby has influence on the lubrication effect of rotor shaft core and bearing.
Under bearing, rotor shaft core and the bearing under the sealed environment of end housing, when this structure in the running, the inner stirring and temperature arrising caused by friction, the lubricant oil of second oil pocket can be scurried outward because of the expansion of inner air, drive lubricant oil and upwards slowly flow along the gap of rotor shaft core and bearing, this moving upward forms a kind of stable trend.When rising to the Oil Guide annular groove of rotor shaft core, owing to the grooving effect, changed the direction of lubricant oil, be directed being changed into radially inwards by the rotor shaft core, axially make progress again, again radially outward; Because the high speed of rotor shaft core rotation, after outwards the lubricant oil of motion reaches the edge of rotor shaft core, be dumped into first oil pocket, the bearing outer wall of first oil pocket has outer endless-oil groove, and the lubricant oil endless-oil groove outside the effect of inertia lower edge that gets rid of into first oil pocket flows back to second oil pocket; And the lubricant oil that minority is not blocked by first oil pocket can be blocked again by the 3rd oil pocket and flow back into second oil pocket; Whole process forms a unidirectional circulation, and the lubricant oil of these circulations not only performs to maximum with its effect, and can also reduce inside temperature, prolongs the life-span of lubricant oil, thus the working life of having improved product greatly.And the effect of the 4th cavity is mainly to prevent that external dust from entering inner the 3rd oil pocket and first oil pocket, thereby has influence on the lubrication effect of rotor shaft core and bearing.
This is simple and practical, and its lubricant oil with inside forms a unidirectional circulation, and the lubricant oil of these circulations not only performs to its effect maximum, and can also reduce inside temperature, prolongs the life-span of lubricant oil, the working life of also having improved fan greatly.
Description of drawings
Fig. 1 is traditional conventional fan motor oil-impregnated bearing structural representation;
Fig. 2 is traditional improvement version fan electromotor oil-impregnated bearing structural representation;
Fig. 3 is fan electromotor oil-impregnated bearing structural representation of the present utility model;
Fig. 4 is bearing structure schematic representation of the present utility model;
Fig. 5 is rotor shaft cored structure schematic representation of the present utility model;
Fig. 6 is the structural representation that flabellum of the present utility model is combined with the rotor shaft core.
Wherein, 1 is bearing, and 2 is coil holder, and 3 is the rotor shaft core, and 4 is flabellum, and 5 is shell, and 6 is first oil pocket, and 7 is second oil pocket, and 8 is the 3rd oil pocket, and 9 is the 4th cavity, and 11 is the Oil Guide ditch, and 12 is outer endless-oil groove, and 21 is two protruding rings, and 31 is the Oil Guide annular groove, and 41 is flinger ring.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to restriction of the present utility model.
Fig. 1 is traditional conventional fan motor oil-impregnated bearing structural representation, as can be seen from the figure the fan electromotor of common oil-containing structure is because lubricant oil can be followed the difference according to installation direction, lubricant oil can overflow the contact area of rotor shaft core and bearing up or down, its being lubricated back and forth of can not circulating, can cause lubricant oil to run off the fan electromotor lost of life fast like this.Fig. 2 is traditional improvement version fan electromotor oil-impregnated bearing structural representation; As can be seen from Figure 2, though the hydraulic structure of improvement can make moderate progress to the saving of lubricant oil because of the bottom sealing, but still can not stop lubricant oil to throw away loss from the top of bearing and rotor shaft core, or lubricant oil rested on the effect that at all do not have on the bearing, after oil deterioration, life-span namely comes to an end, and also influences the working life of fan.
With reference to Fig. 3 ~ 6, the oil circulation structure of a kind of fan electromotor oil-impregnated bearing of the utility model mainly comprises:
One bearing 1, the upper-end surface of described bearing 1 is provided with Oil Guide ditch 11, this Oil Guide ditch 11 communicates with outer endless-oil groove 12 on being located at bearing 1 outer wall, so just, can make lubricant oil endless-oil groove 12 outside Oil Guide ditch 11 flows to of bearing 1 upper end, and be back to by outer endless-oil groove 12 on second oil pocket 7 of bearing 1 lower end; Need to prove that Oil Guide ditch 11 can be designed to different lines according to various needs with outer endless-oil groove 12;
One coil holder 2, the coil holder of described coil holder 2 insulation of two protruding rings 21 for a kind of inboard of upper end is provided with so that itself and flabellum 4 in conjunction with the time form inserting structure, and the outside of this coil holder 2 is equiped with flabellum 4 and shell 5; Described flabellum 4 is provided with flinger ring 41, so that itself and coil holder 2 forms inserting structure; This coil holder 2 forms first oil pocket 6 with bearing 1 and 3 combinations of rotor shaft core, blocking the lubricant oil that when rotor shaft core 3 rotates at a high speed, throws away outward, and then the lubricant oil that blocks action of inertia lower edge Oil Guide ditch 11 and outside endless-oil groove 12 be back to second oil pocket 7;
One rotor shaft core 3, described rotor shaft core 3 is arranged on the bearing 1 and with bearing 1 and is installed on the coil holder 2; The upper end of described rotor shaft core 3 is provided with Oil Guide annular groove 31, and the upper-end surface of this Oil Guide annular groove 31 is lower than the upper-end surface of described first oil pocket 6, so that be thrown on first oil pocket 6 along the lubricant oil of scurrying on the rotor shaft core 3 is more effective.
With reference to Fig. 3 ~ 6, the coil holder of the insulation of described pair of protruding ring 2 and the flabellum 4 that is provided with flinger ring 41 be in conjunction with forming inserting structure, and this coil holder 2, flabellum 4, shell 5 are formed with second oil pocket 7, the 3rd oil pocket 8 and the 4th cavity 9 with rotor shaft core 3; Described second oil pocket 7 is formed at the lower end of bearing 1, and it mainly acts on collecting and stores the lubricant oil that refluxes, in order to recycling again; The effect of described the 3rd oil pocket 8 is minority is not blocked again by the lubricant oil that first oil pocket 6 blocks.Thereby the lubricant oil that has prevented these minorities reaches on outside even the flabellum 4, causes the absorption dust to cause rotor shaft core 3 and disequilibrium; And the effect of the 4th cavity 9 mainly is to prevent that external dust from entering inner the 3rd oil pocket 8 and first oil pocket 6, thereby has influence on the lubrication effect of rotor shaft core 3 and bearing 1.
With reference to Fig. 3 ~ 6, under the sealed environment of bearing 1, rotor shaft core 3 and 1 time end housing 5 of bearing, when this structure in the running, the inner stirring and temperature arrising caused by friction, the lubricant oil of second oil pocket 7 can be scurried outward because of the expansion of inner air, drive lubricant oil and upwards slowly flow along rotor shaft core 3 and the gap of bearing 1, this moving upward forms a kind of stable trend.When rising to the Oil Guide annular groove 31 of rotor shaft core 3, owing to the grooving effect, changed the direction of lubricant oil, be directed being changed into radially inwards by rotor shaft core 3, axially make progress again, again radially outward; Because the high speed of rotor shaft core 3 rotation, after outwards the lubricant oil of motion reaches the edge of rotor shaft core 3, bearing 1 outer wall that is dumped into first oil pocket, 6, the first oil pockets 6 has outer endless-oil groove 12, and the lubricant oil endless-oil groove 12 outside the effect of inertia lower edge that gets rid of into first oil pocket 6 flows back to second oil pocket 7; And the lubricant oil that minority is not blocked by first oil pocket 6 can be blocked again by the 3rd oil pocket 8 and flow back into second oil pocket 7; Whole process forms a unidirectional circulation, and the lubricant oil of these circulations not only performs to maximum with its effect, and can also reduce inside temperature, prolongs the life-span of lubricant oil, thus the working life of having improved product greatly.And the effect of the 4th cavity 9 is mainly to prevent that external dust from entering inner the 3rd oil pocket 8 and first oil pocket 6, thereby has influence on the lubrication effect of rotor shaft core 3 and bearing 1.
This is simple and practical, and its lubricant oil with inside forms a unidirectional circulation, and the lubricant oil of these circulations not only performs to its effect maximum, and can also reduce inside temperature, prolongs the life-span of lubricant oil, the working life of also having improved fan greatly.
Below the utility model is described in detail, but apparent, those skilled in the art can carry out various changes and improvements, and does not deviate from the scope of the present utility model that appended claims limits.
Claims (5)
1. the oil circulation structure of a fan electromotor oil-impregnated bearing is characterized in that, mainly comprises:
One bearing, the upper-end surface of described bearing is provided with the Oil Guide ditch, and this Oil Guide ditch communicates with outer endless-oil groove on being located at bearing outer wall;
One coil holder, described coil holder are combined with bearing and rotor shaft core and are formed first oil pocket;
One rotor shaft core, described rotor shaft core is arranged on the bearing and with bearing and is installed on the coil holder.
2. the oil circulation structure of a kind of fan electromotor oil-impregnated bearing according to claim 1 is characterized in that, the upper end of described rotor shaft core is provided with the Oil Guide annular groove, and the upper-end surface of this Oil Guide annular groove is lower than the upper-end surface of described first oil pocket.
3. the oil circulation structure of a kind of fan electromotor oil-impregnated bearing according to claim 1 is characterized in that, described coil holder is the coil holder that a kind of inboard of upper end is provided with the insulation of two protruding rings.
4. the oil circulation structure of a kind of fan electromotor oil-impregnated bearing according to claim 1 is characterized in that, the outside of described coil holder is equiped with flabellum and shell; Described flabellum is provided with flinger ring.
5. according to the oil circulation structure of claim 1 or 3 or 4 described a kind of fan electromotor oil-impregnated bearings, it is characterized in that, the coil holder of the insulation of described pair of protruding ring is combined with the flabellum that is provided with flinger ring and is formed inserting structure, and this coil holder, flabellum, shell are formed with second oil pocket, the 3rd oil pocket and the 4th cavity with the rotor shaft core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320051570 CN203146397U (en) | 2013-01-30 | 2013-01-30 | Oil circulation structure for oil-retaining bearing of fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320051570 CN203146397U (en) | 2013-01-30 | 2013-01-30 | Oil circulation structure for oil-retaining bearing of fan motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146397U true CN203146397U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320051570 Expired - Fee Related CN203146397U (en) | 2013-01-30 | 2013-01-30 | Oil circulation structure for oil-retaining bearing of fan motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203146397U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410345A (en) * | 2019-07-18 | 2019-11-05 | 风下电机(山东)有限公司 | A kind of high temperature resistant D. C brushless radiating fan |
| CN111794997A (en) * | 2020-06-19 | 2020-10-20 | 力达(中国)机电有限公司 | Lubricating hydraulic system for oil-free blower |
-
2013
- 2013-01-30 CN CN 201320051570 patent/CN203146397U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410345A (en) * | 2019-07-18 | 2019-11-05 | 风下电机(山东)有限公司 | A kind of high temperature resistant D. C brushless radiating fan |
| CN111794997A (en) * | 2020-06-19 | 2020-10-20 | 力达(中国)机电有限公司 | Lubricating hydraulic system for oil-free blower |
| CN111794997B (en) * | 2020-06-19 | 2024-05-07 | 力达(中国)机电有限公司 | Lubricating hydraulic system for oil-free blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140130 |