CN1261698C - Dynamic ball bearing with inclined gas-collecting channel and its gas-collecting channel processing method - Google Patents
Dynamic ball bearing with inclined gas-collecting channel and its gas-collecting channel processing method Download PDFInfo
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- CN1261698C CN1261698C CN 200310107613 CN200310107613A CN1261698C CN 1261698 C CN1261698 C CN 1261698C CN 200310107613 CN200310107613 CN 200310107613 CN 200310107613 A CN200310107613 A CN 200310107613A CN 1261698 C CN1261698 C CN 1261698C
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- troughs
- pneumatic trough
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Abstract
The present invention discloses a dynamic pressure bearing and a processing method of pneumatic troughs thereof, particularly a dynamic pressure sphere bearing with inclined pneumatic troughs and a processing method of the pneumatic troughs. The dynamic pressure sphere bearing is composed of a bearing bowl (1) and a hemispherical sphere head (2), wherein a plurality of rows of pneumatic trough sets (2-1) are arranged on the hemispherical surface of the sphere head, each row of pneumatic trough group is surrounded on the surface of the sphere head in a belt shape, each row of pneumatic trough group is composed of a plurality of pneumatic troughs (2-1) uniformly distributed, the upper ends of the pneumatic troughs in each row of pneumatic trough group are communicated with the upper ends of annular troughs or the sphere head, and ventilation holes (2-4) are arranged on the points between the outer surface and the inner surface of the bearing bowl corresponding to the annular troughs (2-2). The present invention solves an unfavorable defect of dynamic pressure bearing lubrication and has the advantages of reasonable design, reliable operation, low cost and easy popularization and implementation. The processing method has the following steps that the surface of the ball head is cleaned, a layer of uniform metallic layer or a diamond film is plated on the hemispherical surface of the sphere head to be used as a working layer, and the pneumatic troughs are processed on the surface of a working layer in a mask etching way.
Description
Technical field: the present invention relates to a kind of hydraulic bearing, the present invention can be used for the main shaft of lathe or other precision optical machinery.
Background technique: the hydrostatic bearing constituent elements is more at present, need optional equipments such as oil pump, so cost is higher, can't use in some occasion, and common hydraulic bearing exists lubricated unfavorable defective between the friction pair.
Summary of the invention: in order to overcome the lubricated unfavorable defective between the existing hydraulic bearing friction pair, provide a kind of hydraulic bearing that can between friction pair, form air film when rotated, to solve the lubricated unfavorable defective of hydraulic bearing.The present invention is achieved by following proposal: a kind of dynamic pressure ball bearing with inclination pneumatic trough, it is made up of cup 1 and hemispheric bulb 2, have plurality of rows pneumatic trough group 2-1 on the hemisphere surface of bulb 2, whenever arrange in a row that air drain group 2-1 is on the hemisphere surface that band shape is looped around bulb 2 and perpendicular to the running shaft 2-3 of bulb 2, whenever arranging in a row air drain group 2-1 all is made up of some equally distributed pneumatic trough 2-1-1, whenever the upper end of arranging in a row the pneumatic trough 2-1-1 among the air drain group 2-1 all is connected with the upper-end surface of annular groove 2-2 or bulb 2, have vent 2-4 with annular groove 2-2 corresponding section between the outer surface of cup 1 and the internal surface, the angle α of pneumatic trough 2-1-1 and vertical is between 10 degree are spent to 80.When bulb 2 when Fig. 1 overlooks to the counter clockwise direction high speed rotating, air just is collected among the pneumatic trough 2-1-1, forms the annular space air film that can bear pressure in the bottom of pneumatic trough 2-1-1.Bulb 2 is high speed rotating under state of suspension just, does not rub with cup 1, has also just solved the lubricated unfavorable defective of hydraulic bearing.In addition, because the existence of annular space air film, the rotation axis oscillating of bulb is less among the present invention, shakes and beats also lessly, can reach very high running accuracy.That the present invention has is reasonable in design, reliable operation, with low cost and be easy to the advantage of promotion and implementation.
The present invention also provides another kind to have the dynamic pressure ball bearing of inclination pneumatic trough, it is by top bearing shell 3, lower bearing 4 and spherical bulb 5 are formed, top bearing shell 3 and lower bearing 4 are fixed as one, bulb 5 is located in the cavity that top bearing shell 3 and lower bearing 4 fastened, have plurality of rows pneumatic trough group 5-1 on the spherome surface of bulb 5, whenever arranging in a row air drain group 5-1 all is made up of some equally distributed pneumatic trough 5-1-1, whenever arrange in a row that air drain group 5-1 is on the surface that band shape is looped around bulb 5 and perpendicular to the running shaft 5-3 of bulb 5, whenever the upper end of arranging in a row the pneumatic trough 5-1-1 among the air drain group 5-1 all is connected with annular groove 5-2, have vent 3-1 with annular groove 5-2 corresponding section between the outer surface of top bearing shell 3 and lower bearing 4 and the internal surface, the angle α of pneumatic trough 5-1-1 and vertical is between 10 degree are spent to 80.
Description of drawings: Fig. 1 is the structural representation of embodiment of the present invention one, and Fig. 2 is the structural representation of embodiment of the present invention two.
Embodiment one: specify present embodiment below in conjunction with Fig. 1.It is made up of cup 1 and hemispheric bulb 2, have plurality of rows pneumatic trough group 2-1 on the hemisphere surface of bulb 2, whenever arrange in a row that air drain group 2-1 is on the hemisphere surface that band shape is looped around bulb 2 and perpendicular to the running shaft 2-3 of bulb 2, whenever arranging in a row air drain group 2-1 all is made up of some equally distributed pneumatic trough 2-1-1, whenever the upper end of arranging in a row the pneumatic trough 2-1-1 among the air drain group 2-1 all is connected with the upper-end surface of annular groove 2-2 or bulb 2, have vent 2-4 with annular groove 2-2 corresponding section between the outer surface of cup 1 and the internal surface, the angle α of pneumatic trough 2-1-1 and vertical is between 10 degree are spent to 80.
Above-mentioned pneumatic trough with dynamic pressure ball bearing of inclination pneumatic trough can be processed realization by following step: one, clean with acetone or alcohol wash the surface of bulb 2; Two, on the hemisphere surface of bulb 2, plate layer of even metal layer or diamond film having as working lining; Three, the mask etching and processing goes out pneumatic trough 2-1-1 on the surface of working lining.
Above-mentioned pneumatic trough with dynamic pressure ball bearing of inclination pneumatic trough also can be processed realization by following step: one, clean the surface clean of bulb 2 with acetone or alcohol; Two, on the hemisphere surface of bulb 2, apply one deck sensitive material; Three, hide the shading template on the surface of sensitive material, the shading template is to cover or only to manifest the position of pneumatic trough and the template of shape on the hemisphere surface of bulb 2; Four, the hemisphere surface of bulb 2 being carried out sensitization handles; Five,, thereby erode away pneumatic trough or plate out the pneumatic trough that metal layer forms low level after handling the sensitive material come off by sensitization and disposing.
Embodiment two: specify present embodiment below in conjunction with Fig. 2.It is by top bearing shell 3, lower bearing 4 and spherical bulb 5 are formed, top bearing shell 3 and lower bearing 4 are fixed as one by screw 6, bulb 5 is located in the cavity that top bearing shell 3 and lower bearing 4 fastened, have plurality of rows pneumatic trough group 5-1 on the spherome surface of bulb 5, whenever arranging in a row air drain group 5-1 all is made up of some equally distributed pneumatic trough 5-1-1, whenever arrange in a row that air drain group 5-1 is on the surface that band shape is looped around bulb 5 and perpendicular to the running shaft 5-3 of bulb 5, whenever the upper end of arranging in a row the pneumatic trough 5-1-1 among the air drain group 5-1 all is connected with annular groove 5-2, have vent 3-1 with annular groove 5-2 corresponding section between the outer surface of top bearing shell 3 and lower bearing 4 and the internal surface, the angle α of pneumatic trough 5-1-1 and vertical is between 10 degree are spent to 80.The running accuracy of bulb is higher than mode of execution one in the present embodiment.
Claims (2)
1, a kind of dynamic pressure ball bearing with inclination pneumatic trough, it is made up of cup (1) and hemispheric bulb (2), it is characterized in that having plurality of rows pneumatic trough group (2-1) on the hemisphere surface of bulb (2), whenever arrange in a row that air drain group (2-1) all is on the hemisphere surface that band shape is looped around bulb (2) and perpendicular to the running shaft (2-3) of bulb (2), whenever arranging in a row air drain group (2-1) all is made up of some equally distributed pneumatic troughs (2-1-1), whenever the upper end of arranging in a row the pneumatic trough (2-1-1) in the air drain group (2-1) all is connected with the upper-end surface of annular groove (2-2) or bulb (2), have vent (2-4) with annular groove (2-2) corresponding section between the outer surface of cup (1) and the internal surface, the angle (α) of pneumatic trough (2-1-1) and vertical is between 10 degree are spent to 80.
2, a kind of dynamic pressure ball bearing with inclination pneumatic trough, it is by top bearing shell (3), lower bearing (4) and spherical bulb (5) are formed, top bearing shell (3) and lower bearing (4) are fixed as one, bulb (5) is located in the cavity that top bearing shell (3) and lower bearing (4) fastened, it is characterized in that having plurality of rows pneumatic trough group (5-1) on the spherome surface of bulb (5), whenever arranging in a row air drain group (5-1) all is made up of some equally distributed pneumatic troughs (5-1-1), whenever arrange in a row that air drain group (5-1) all is on the surface that band shape is looped around bulb (5) and perpendicular to the running shaft (5-3) of bulb (5), whenever the upper end of arranging in a row the pneumatic trough (5-1-1) in the air drain group (5-1) all is connected with annular groove (5-2), have vent (3-1) with annular groove (5-2) corresponding section between the outer surface of top bearing shell (3) and lower bearing (4) and the internal surface, the angle (α) of pneumatic trough (5-1-1) and vertical is between 10 degree are spent to 80.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310107613 CN1261698C (en) | 2003-10-15 | 2003-10-15 | Dynamic ball bearing with inclined gas-collecting channel and its gas-collecting channel processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310107613 CN1261698C (en) | 2003-10-15 | 2003-10-15 | Dynamic ball bearing with inclined gas-collecting channel and its gas-collecting channel processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1529063A CN1529063A (en) | 2004-09-15 |
| CN1261698C true CN1261698C (en) | 2006-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310107613 Expired - Fee Related CN1261698C (en) | 2003-10-15 | 2003-10-15 | Dynamic ball bearing with inclined gas-collecting channel and its gas-collecting channel processing method |
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| Country | Link |
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| CN (1) | CN1261698C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5174108B2 (en) * | 2010-09-13 | 2013-04-03 | トヨタ自動車株式会社 | Sliding member and manufacturing method thereof |
| CN108561536A (en) * | 2018-05-10 | 2018-09-21 | 上海理工大学 | A kind of high-precision motor device and precision equipment |
| CN108591274A (en) * | 2018-05-10 | 2018-09-28 | 上海理工大学 | A kind of sealing device and precision equipment |
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2003
- 2003-10-15 CN CN 200310107613 patent/CN1261698C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1529063A (en) | 2004-09-15 |
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| C14 | Grant of patent or utility model | ||
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Owner name: ZHEJIANG JUNENG HOLDINGS LIMITED Free format text: FORMER OWNER: HARBIN INSTITUTE OF TECHNOLOGY Effective date: 20080912 Owner name: ZHEJIANG GUANXI ELECTRIC CO., LTD. Free format text: FORMER OWNER: ZHEJIANG JUNENG HOLDINGS LIMITED Effective date: 20080912 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080912 Address after: 4D 63, nine Ring Road, Jianggan District, Zhejiang, Hangzhou: 310019 Patentee after: ZHEJIANG GUANXI ELECTRIC & MOTOR Co.,Ltd. Address before: Hangzhou City, Zhejiang Province, Binjiang District Jiangnan Road No. 3888 Sunyard building seven floor, zip code: 310053 Patentee before: Zhejiang Energy Holdings Ltd. Effective date of registration: 20080912 Address after: Hangzhou City, Zhejiang Province, Binjiang District Jiangnan Road No. 3888 Sunyard building seven floor, zip code: 310053 Patentee after: Zhejiang Energy Holdings Ltd. Address before: No 92, West Da Jie street, Nangang District, Heilongjiang, Harbin: 150001 Patentee before: Harbin Institute of Technology |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060628 Termination date: 20161015 |