CN203230737U - Bushing bearing - Google Patents
Bushing bearing Download PDFInfo
- Publication number
- CN203230737U CN203230737U CN 201320272203 CN201320272203U CN203230737U CN 203230737 U CN203230737 U CN 203230737U CN 201320272203 CN201320272203 CN 201320272203 CN 201320272203 U CN201320272203 U CN 201320272203U CN 203230737 U CN203230737 U CN 203230737U
- Authority
- CN
- China
- Prior art keywords
- bushing bearing
- rotating shaft
- circular arc
- arc surfaces
- radius
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of bushings of mechanical products and in particular relates to a bushing bearing. The bushing bearing is a cylindrical part, wherein the outer surface of the bushing bearing is fixed in an inner hole of a part, and a rotating main shaft is supported on the inner surface of the bushing bearing. The bushing bearing is characterized in that the inner hole is formed by uniform distribution of four circular arc surfaces with the same radius; the radii of the circular arc surfaces are greater than the radius of the rotating shaft; four radial through holes are formed in the middle of the joints of the arc surfaces; the differences between the radii of the circular arc surfaces and the radius of the rotating shaft double the minimum distance between the circular arc surfaces and the rotating shaft; and the ratio of the minimum distance to the maximum distance between each circular arc surface and the rotating shaft is 0.5. The bushing bearing has the beneficial effects that through improvement on the original bushing bearing, an oil supply groove of the inner hole is removed, and the shape of the inner hole is changed, so that the inner surface of the bushing bearing and the rotating shaft form an oil wedge, thus promoting formation of a stable oil film and increasing the threshold speed; and the bushing bearing has a better cooling effect, and the service life of the bushing bearing is prolonged.
Description
Technical field
The utility model belongs to the lining technical field of machinery product, relates in particular to a kind of bushing bearing.
Background technique
Bushing bearing is generally cylindric, its outer surface is fixed among the endoporus of parts usually, its internal surface is supported with the main shaft of rotation, and each cross section of endoporus is circular, and the middle part, hole is provided with radially oil groove within it, through hole is arranged at the oil groove bottom, so that lubricant oil is imported bore area, when rotating shaft when axis hole rotates, rotating shaft and axle bush bore area have formed oil film, thereby have low noise characteristic preferably, and manufacture cost simple in structure is lower, is therefore extensively adopted by all kinds of automobiles and machinery manufacturing firm.Yet along with the increase day by day that unit requires rotating speed, existing bushing bearing also haves much room for improvement, and makes it also can show preferable performance under high rotary speed working state, and higher working life.
Summary of the invention
The utility model is that a kind of bushing bearing is provided in order to address the above problem.
Scheme of the present utility model is achieved in that a kind of bushing bearing, be cartridge, its outer surface is fixed among the endoporus of parts, its internal surface is supported with the main shaft of rotation, it is characterized in that: endoporus is identical and form greater than the arc surface of rotating shaft radius is uniform by four radiuses, and is provided with four radial direction through hole at the middle part of cambered surface connecting part; The difference of described arc surface radius and rotating shaft radius is the twice of arc surface and rotating shaft minimum range; The minimum range of described arc surface and rotating shaft is 0.5 with the ratio of ultimate range.
The beneficial effects of the utility model are: by the improvement to original bushing bearing, removed the shape of oil supply and the change endoporus of endoporus, make bushing bearing internal surface and rotating shaft form oil film wedge, impel the formation of stable state oil film, improve instability speed, and better cooling effect, increased its working life.
Description of drawings
Fig. 1 is the structural representation of model utility.
Fig. 2 is the A-A sectional view of model utility.
Among the figure: 1, bushing bearing, 2, rotating shaft, 3, oil inlet hole, 4, oil sac.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is further described:
As Fig. 1, shown in Figure 2, bushing bearing 1, be cartridge, its internal surface is supported with rotating shaft 2, because endoporus is by four uniform formation of the cambered surface greater than the rotating shaft radius, make rotating shaft 2 and the contact surface of bushing bearing 1 reduce, reduced the heat that produces because of friction effectively, when rotating shaft 2 operations, made one of them oil inlet hole 3 become 22 degree angles with the loading direction of rotating shaft 2, and make lubricant oil enter oil sac 4 from oil inlet hole 3 respectively, countershaft 2 carries out sufficient lubrication, because oil sac 4 and rotating shaft 2 have formed some wedge shape filler openings, makes that rotating shaft 2 is easier brings lubricant oil into bushing bearing 1 internal surface, thereby form the stable state oil film, improve instability speed, make that operation is more stable, and sufficient fuel feeding, improved cooling effect, increased its working life.
Claims (3)
1. bushing bearing, be cartridge, its outer surface is fixed among the endoporus of parts, its internal surface is supported with the main shaft of rotation, it is characterized in that: endoporus is identical and form greater than the arc surface of rotating shaft radius is uniform by four radiuses, and is provided with four radial direction through hole at the middle part of cambered surface connecting part.
2. a kind of bushing bearing as claimed in claim 1, it is characterized in that: the difference of arc surface radius and rotating shaft radius is the twice of arc surface and rotating shaft minimum range.
3. a kind of bushing bearing as claimed in claim 1 is characterized in that: the minimum range of arc surface and rotating shaft is 0.5 with the ratio of ultimate range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320272203 CN203230737U (en) | 2013-05-05 | 2013-05-05 | Bushing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320272203 CN203230737U (en) | 2013-05-05 | 2013-05-05 | Bushing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230737U true CN203230737U (en) | 2013-10-09 |
Family
ID=49286865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320272203 Expired - Fee Related CN203230737U (en) | 2013-05-05 | 2013-05-05 | Bushing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897570A (en) * | 2021-09-29 | 2022-01-07 | 泰尔(安徽)工业科技服务有限公司 | Zinc pot roller bushing of hot galvanizing unit and manufacturing method thereof |
-
2013
- 2013-05-05 CN CN 201320272203 patent/CN203230737U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897570A (en) * | 2021-09-29 | 2022-01-07 | 泰尔(安徽)工业科技服务有限公司 | Zinc pot roller bushing of hot galvanizing unit and manufacturing method thereof |
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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: 20131009 Termination date: 20140505 |