CN102661323B - A kind of hydrostatic bearing - Google Patents
A kind of hydrostatic bearing Download PDFInfo
- Publication number
- CN102661323B CN102661323B CN201210153004.4A CN201210153004A CN102661323B CN 102661323 B CN102661323 B CN 102661323B CN 201210153004 A CN201210153004 A CN 201210153004A CN 102661323 B CN102661323 B CN 102661323B
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- CN
- China
- Prior art keywords
- oil pocket
- bearing shell
- oil
- bearing
- headstock
- 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.)
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- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 15
- 239000003921 oil Substances 0.000 claims abstract description 95
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 10
- 239000000446 fuel Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Abstract
The invention discloses a kind of hydrostatic bearing, comprise main shaft, headstock and headstock end cap, described main shaft is arranged in headstock, described bearing also comprises: adjustment ring, oil inlet hole and oil outlet, described headstock is provided with bearing shell, bearing shell oil pocket, thrust oil pocket and oil return oil pocket, and described thrust oil pocket is arranged on the front end of described bearing shell oil pocket; The bottom of described bearing shell oil pocket is provided with bearing shell circular groove, and bearing shell circular groove is provided with axis hole, by described axis hole, the hydraulic oil in oil inlet hole is transported to bearing shell oil pocket and thrust oil pocket; Described oil return oil pocket is arranged in described bearing shell oil pocket, and by described axis hole, the hydraulic oil in bearing shell oil pocket and thrust oil pocket is delivered to all oilholes.The present invention does not need special flow controller, and bearing shell does not need special oil pocket; Bearing shell hole inherently oil pocket, when all parameters are the same; Axle is larger for oil ratio bearing shell fuel feeding bearing capacity; Owing to removing orifice restriction mode so have the feature of the low vibration of low noise.
Description
Technical field
The present invention relates to a kind of axis system, particularly relate to a kind of hydrostatic bearing.
Background technique
Hydrostatic bearing application study, more than 100 years, applied to a lot of field at present, and structural type is varied, but is all (the i.e. bearing shell fuel system that the viscosity oil for certain pressure in bearing shell chamber after adopting throttling realizes.
There is following shortcoming in existing static pressure axle:
1, hydrostatic bearing is when using orifice restriction device and capillary flow controller, because flow controller aperture is very little, so be easy to blocking.
2, the bearing shell of hydrostatic bearing not only needs out oil pocket, and also very strict to the required precision of oil pocket.
Summary of the invention
For solving above-mentioned middle Problems existing and defect, the invention provides a kind of employing axle fuel system, namely after pressure oil enters bearing shell circular groove, owing to axle having symmetrical radial direction and axial bore, pressure oil must enter in axis hole, by different oil circuits, pressure oil is sent in radial and axial bearing shell chamber oil the most at last, realizes the hydrostatic bearing of all-liquid lubrication.Described technological scheme is as follows:
A kind of hydrostatic bearing, comprising:
Main shaft, headstock and headstock end cap, described main shaft is arranged in headstock, described bearing also comprises: adjustment ring, oil inlet hole and oil outlet, and described headstock is provided with bearing shell, bearing shell oil pocket, thrust oil pocket and oil return oil pocket, and described thrust oil pocket is arranged on the front end of described bearing shell oil pocket; The bottom of described bearing shell oil pocket is provided with bearing shell circular groove, and bearing shell circular groove is provided with axis hole, by described axis hole, the hydraulic oil in oil inlet hole is transported to bearing shell oil pocket and thrust oil pocket; Described oil return oil pocket is arranged in described bearing shell oil pocket, and by described axis hole, the hydraulic oil in bearing shell oil pocket and thrust oil pocket is delivered to institute's oilhole.
The beneficial effect of technological scheme provided by the invention is:
1, special flow controller is not needed.
2, bearing shell does not need special oil pocket, bearing shell hole inherently oil pocket.
3, when all parameters are the same, axle is larger for oil ratio bearing shell fuel feeding bearing capacity.
4, owing to removing orifice restriction mode so have the feature of the low vibration of low noise.
Accompanying drawing explanation
Figure 1A, 1B and 1C are hydrostatic bearing sectional views;
Fig. 2 is the radial oil channel structures figure of bearing;
Fig. 3 is bearing thrust oil channel structures figure.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail:
Hydrostatic bearing sectional view see Figure 1A, 1B and 1C, hydrostatic bearing comprises main shaft 1, headstock and headstock end cap, described main shaft is arranged in headstock, described bearing also comprises: adjustment ring 2, oil inlet hole 3 and oil outlet 4, described headstock is provided with bearing shell 12, bearing shell oil pocket 5, thrust oil pocket 6 and oil return oil pocket 7, and described thrust oil pocket is arranged on the front end of described bearing shell oil pocket; The bottom of described bearing shell oil pocket is provided with bearing shell circular groove 8, bearing shell circular groove is provided with axis hole 9, by described axis hole, the hydraulic oil in oil inlet hole is transported to bearing shell oil pocket and thrust oil pocket; Described oil return oil pocket is arranged in described bearing shell oil pocket, and by described axis hole, the hydraulic oil in bearing shell oil pocket and thrust oil pocket is delivered to institute's oilhole.
Above-mentioned adjustment ring is arranged on the outside of described thrust oil pocket, for adjusting the gap of thrust oil pocket.Wherein, on the thickness of adjustment ring and axle, the thickness of greatest circle has certain difference, and the size of difference directly determines the size of bearing axial bearing capacity, so ensure designing requirement by the way of continuous grinding adjustment ring.
Above-mentioned headstock end cap comprises front cover 10 and rear end cover 11, is separately positioned on the front-end and back-end of described headstock.
The present embodiment and the maximum difference of existing hydrostatic bearing adopt axle fuel system, namely after hydraulic oil enters bearing shell circular groove from oil inlet hole, enter in bearing shell oil pocket and thrust oil pocket (as shown in Figure 2 and Figure 3) respectively by multiple axis holes 9 that bearing shell circular groove is arranged, reach the effect of pure liquid lubrication, last hydraulic oil flows out from oil outlet through oil return oil pocket.
Above-described embodiment is broken hydrostatic bearing in the past and is all adopted the mode of watt fuel feeding, and tool one lattice ground does not adopt axle fuel system.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a hydrostatic bearing, comprise main shaft, headstock and headstock end cap, described main shaft is arranged in headstock, it is characterized in that, described bearing also comprises: adjustment ring, oil inlet hole and oil outlet, described headstock is provided with bearing shell, bearing shell oil pocket, thrust oil pocket and oil return oil pocket, and described thrust oil pocket is arranged on the front end of described bearing shell oil pocket; The bottom of described bearing shell oil pocket is provided with bearing shell circular groove, and bearing shell circular groove is provided with axis hole, by described axis hole, the hydraulic oil in oil inlet hole is transported to bearing shell oil pocket and thrust oil pocket; Described oil return oil pocket is arranged in described bearing shell oil pocket, and by described axis hole, the hydraulic oil in bearing shell oil pocket and thrust oil pocket is delivered to all oilholes;
Described adjustment ring is arranged on the outside of described thrust oil pocket, for adjusting the gap of thrust oil pocket; On the thickness of described adjustment ring and axle, the thickness of greatest circle and the thickness of the thrust oil pocket inner main axis shaft shoulder have certain difference, and the size of this difference directly determines the size of bearing axial bearing capacity;
Described headstock end cap comprises front cover and rear end cover, is separately positioned on the front-end and back-end of described headstock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210153004.4A CN102661323B (en) | 2012-05-17 | 2012-05-17 | A kind of hydrostatic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210153004.4A CN102661323B (en) | 2012-05-17 | 2012-05-17 | A kind of hydrostatic bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102661323A CN102661323A (en) | 2012-09-12 |
| CN102661323B true CN102661323B (en) | 2015-09-16 |
Family
ID=46770871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210153004.4A Active CN102661323B (en) | 2012-05-17 | 2012-05-17 | A kind of hydrostatic bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102661323B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143905B (en) * | 2013-02-28 | 2016-09-07 | 深圳朱光波机械科技有限公司 | A kind of miniature carving lathe |
| CN103862070B (en) * | 2014-03-06 | 2016-04-13 | 浙江工业大学 | Small-sized hydraulic vibrating spindle structure |
| CN104100637B (en) * | 2014-07-25 | 2016-05-11 | 温州华聚科技有限公司 | Protection mechanism and lathe with the supporting dynamic and hydrostatic bearing of machine tool chief axis |
| CN104847793B (en) * | 2015-04-08 | 2017-11-03 | 河南科技大学 | A kind of novel static pressure bearing and its encapsulating method |
| CN110259827B (en) * | 2019-06-24 | 2020-11-10 | 大连贝林轴承仪器有限公司 | Oil static pressure main shaft system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62148102A (en) * | 1985-12-20 | 1987-07-02 | Toyoda Mach Works Ltd | Main spindle device |
| CN101060262A (en) * | 2007-05-31 | 2007-10-24 | 熊万里 | Built-in type hybrid motor spindle |
| JP2009197942A (en) * | 2008-02-22 | 2009-09-03 | Ntn Corp | Gas bearing spindle |
-
2012
- 2012-05-17 CN CN201210153004.4A patent/CN102661323B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62148102A (en) * | 1985-12-20 | 1987-07-02 | Toyoda Mach Works Ltd | Main spindle device |
| CN101060262A (en) * | 2007-05-31 | 2007-10-24 | 熊万里 | Built-in type hybrid motor spindle |
| JP2009197942A (en) * | 2008-02-22 | 2009-09-03 | Ntn Corp | Gas bearing spindle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102661323A (en) | 2012-09-12 |
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Owner name: DALIAN BOFENG BEARING INSTRUMENTS CO., LTD. Free format text: FORMER OWNER: JIAO ZHENGYU Effective date: 20150906 |
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Effective date of registration: 20150906 Address after: 116038 68A, 8 China World Trade Center street, Ganjingzi District, Liaoning, Dalian Patentee after: DALIAN BOFENG BEARING INSTRUMENTS LTD. Address before: 116038 No. 8, China World Trade Center street, Ganjingzi District, Liaoning, Dalian Patentee before: Jiao Zhengyu |
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| CP01 | Change in the name or title of a patent holder |
Address after: 116038 68A, 8 China World Trade Center street, Ganjingzi District, Dalian, Liaoning. Patentee after: DALIAN BAISHENGYUAN TECHNOLOGY Co.,Ltd. Address before: 116038 68A, 8 China World Trade Center street, Ganjingzi District, Dalian, Liaoning. Patentee before: DALIAN BOFENG BEARING INSTRUMENTS LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A type of hydrostatic bearing Effective date of registration: 20230830 Granted publication date: 20150916 Pledgee: Industrial Bank Limited by Share Ltd. Dalian branch Pledgor: DALIAN BAISHENGYUAN TECHNOLOGY Co.,Ltd. Registration number: Y2023210000220 |
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