CN1632333A - Mixed type helical groove dynamical and static pressure gas composite conical bearing - Google Patents
Mixed type helical groove dynamical and static pressure gas composite conical bearing Download PDFInfo
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- CN1632333A CN1632333A CN 200510009634 CN200510009634A CN1632333A CN 1632333 A CN1632333 A CN 1632333A CN 200510009634 CN200510009634 CN 200510009634 CN 200510009634 A CN200510009634 A CN 200510009634A CN 1632333 A CN1632333 A CN 1632333A
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Abstract
The invention relates to a mixed type helical groove dynamical and static pressure gas composite thrust bearing, which is high speed, high rigidity, big load and ultraprecise. On the working surface of the thrust bearing, static pressure air-floating air feed point distributed at two sides of the circle respectively opens herringbone dynamical pressure groove. The bearing capacity of the bearing is improved more than 30% compared to the traditional static pressure air-floating bearing in the circumstance of not adding the gas consumption of the air-floating bearing and the bearing rigidity is improved more than 15% compared to the static pressure air-floating bearing.
Description
Technical field
The present invention relates to a kind of dynamical and static pressure gas compound conical bearing, especially ultraprecise, ultra high speed gas conic bearing.
Background technique
At present, the high speed hydrostatic gas conic bearing that uses in the engineering, only utilize static pressure air-bearing to come bearing load and rigidity is provided, usually run in the middle of practical application that bearing capacity is low, rigidity is little, the problem of poor anti jamming capability, the static pressure gas conic bearing that uses in the engineering do not make full use of bearing capacity that the dynamic pressure effect of high rotating speed or linear velocity can provide and rigidity (the 7th piece-gas bearing .2002 of " mechanical design handbook " second volume the 4th edition, Chemical Industry Press.; The 40 piece of chapter 9 in " mechanical design handbook " Volume Four-gas bearing .2003 second edition, China Machine Press .).
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the above-mentioned technology, the mixed type helical groove dynamical and static pressure gas composite conical bearing of a kind of high rigidity, high bearing capacity is provided.
For achieving the above object, the technical solution used in the present invention is on the conical bearing working surface, and static pressure air-bearing air feed point distribution circle both sides have helical dynamic pressure groove.
The helical dynamic pressure groove of described static pressure air-bearing air feed point distribution circle both sides communicates or is obstructed.
The helical dynamic pressure groove of the described static pressure air-bearing air feed point distribution circle both sides outside has envelope gas limit or does not have envelope gas limit, does not promptly have envelope gas limit and be to have envelope gas limit but envelope gas hem width degree is 0 special case.
The circumferencial direction of described conical bearing working surface upper edge static pressure air-bearing air feed point distribution circle has or does not have a plurality of balancing slits that communicate with both sides helical dynamic pressure groove.
Described static pressure air-bearing air feed point is single layout or double layout.
Described static pressure air-bearing air feed point is hole or slit or the hole of filling with the material that has pore.
Described static pressure air-bearing air feed point and helical dynamic pressure groove on the same working surface or with the corresponding working surface of working surface that has helical dynamic pressure groove on.
The spiral chute dynamic and static pressure composite gas conic bearing of the static pressure air-bearing air feed point of described double layout, the helical dynamic pressure groove direction of static pressure air-bearing air feed point both sides is identical or opposite.
The spiral chute dynamic and static pressure composite gas conic bearing of the static pressure air-bearing air feed point of described double layout, the helical dynamic pressure groove of 2 row's static pressure air-bearing air feed points communicates or is obstructed.
Advantage of the present invention
(1) bearing load carrying capacity improves more than 30% than traditional static pressure air-bearing conical bearing.
(2) bearing rigidity improves more than 15% than traditional static pressure air-bearing conical bearing.
Description of drawings
Accompanying drawing 1 is that the static pressure air-bearing air feed is put 3 distribution circle both sides and had the helical dynamic pressure groove 2 that does not communicate on conical bearing working surface 1, and helical dynamic pressure groove 2 outsides have the internal conical surface schematic representation on envelope gas limit 4.
Accompanying drawing 2 is that the static pressure air-bearing air feed is put 7 distribution circle both sides and had the helical dynamic pressure groove 6 that does not communicate on conical bearing working surface 5, and helical dynamic pressure groove 6 outsides have the outer conical surface schematic representation on envelope gas limit 8.
Accompanying drawing 3 is that the static pressure air-bearing air feed is put 11 distribution circle both sides and had the helical dynamic pressure groove 10 that communicates on conical bearing working surface 9, and helical dynamic pressure groove 10 outsides have the internal conical surface schematic representation on envelope gas limit 12.
Accompanying drawing 4 is that the static pressure air-bearing air feed is put 15 distribution circle both sides and had the helical dynamic pressure groove 14 that communicates on conical bearing working surface 13, and helical dynamic pressure groove 14 outsides have the outer conical surface schematic representation on envelope gas limit 16.
Accompanying drawing 5 is that the static pressure air-bearing air feed is put 19 double layouts on the conical bearing working surface 17, and the static pressure air-bearing air feed is put 19 distribution circle both sides and had the helical dynamic pressure groove 18 that does not communicate, and helical dynamic pressure groove 18 outsides have the internal conical surface schematic representation on envelope gas limit 20.
Accompanying drawing 6 is that the static pressure air-bearing air feed is put 23 double layouts on the conical bearing working surface 21, and the static pressure air-bearing air feed is put 23 distribution circle both sides and had the helical dynamic pressure groove 22 that does not communicate, and helical dynamic pressure groove 22 outsides have the outer conical surface schematic representation on envelope gas limit 24.
Accompanying drawing 7 is that the static pressure air-bearing air feed is put 27 double layouts on the conical bearing working surface 25, the static pressure air-bearing air feed is put 27 distribution circle both sides, and to have the helical dynamic pressure groove 26 and the direction that do not communicate identical, and helical dynamic pressure groove 26 outsides have the internal conical surface schematic representation on envelope gas limit 28.
Accompanying drawing 8 is that the static pressure air-bearing air feed is put 31 double layouts on the conical bearing working surface 29, the static pressure air-bearing air feed is put 31 distribution circle both sides, and to have the helical dynamic pressure groove 30 and the direction that do not communicate identical, and helical dynamic pressure groove 30 outsides have the outer conical surface schematic representation on envelope gas limit 32.
Accompanying drawing 9 is that the static pressure air-bearing air feed is put 35 double layouts on the conical bearing working surface 33, the static pressure air-bearing air feed is put 35 distribution circle both sides, and to have the helical dynamic pressure groove 34 and the direction that communicate identical, and helical dynamic pressure groove 34 outsides have the internal conical surface schematic representation on envelope gas limit 36.
Accompanying drawing 10 is that the static pressure air-bearing air feed is put 39 double layouts on the conical bearing working surface 37, the static pressure air-bearing air feed is put 39 distribution circle both sides, and to have the helical dynamic pressure groove 38 and the direction that communicate identical, and helical dynamic pressure groove 38 outsides have the outer conical surface schematic representation on envelope gas limit 40.
Accompanying drawing 11 is that the static pressure air-bearing air feed is put 43 double layouts on the conical bearing working surface 41, the static pressure air-bearing air feed is put 43 distribution circle both sides, and to have the helical dynamic pressure groove 42 and the direction that do not communicate identical, the contiguous helical dynamic pressure groove 42 of 2 row's static pressure air-bearing air feed points 43 communicates, and helical dynamic pressure groove 42 outsides have the internal conical surface schematic representation on envelope gas limit 44.
Accompanying drawing 12 is that the static pressure air-bearing air feed is put 47 double layouts on the conical bearing working surface 45, the static pressure air-bearing air feed is put 47 distribution circle both sides, and to have the helical dynamic pressure groove 46 and the direction that do not communicate identical, the contiguous helical dynamic pressure groove 46 of 2 row's static pressure air-bearing air feed points 47 communicates, and helical dynamic pressure groove 46 outsides have the outer conical surface schematic representation on envelope gas limit 48.
Accompanying drawing 17 is that the static pressure air-bearing air feed is put 69 double layouts on the described conical bearing working surface 67, the circumferencial direction of putting 69 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 70 that communicate with both sides helical dynamic pressure groove 68, and helical dynamic pressure groove 68 outsides have the internal conical surface schematic representation on envelope gas limit 71.
Accompanying drawing 18 is that the static pressure air-bearing air feed is put 74 double layouts on the described conical bearing working surface 72, the circumferencial direction of putting 74 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 75 that communicate with both sides helical dynamic pressure groove 73, and helical dynamic pressure groove 73 outsides have the outer conical surface schematic representation on envelope gas limit 76.
Accompanying drawing 19 is described static pressure air-bearing air feed point 79 and the schematic representation of helical dynamic pressure groove 78 on same working surface 77.
Accompanying drawing 20 are described static pressure air-bearing air feed points 82 with the working surface 80 corresponding working surfaces that have helical dynamic pressure groove 81 on schematic representation.
Accompanying drawing 21 is that described static pressure air-bearing air feed point is the schematic representation in hole 83.
Accompanying drawing 22 is that described static pressure air-bearing air feed point is the schematic representation in slit 84.
Accompanying drawing 23 is that described static pressure air-bearing air feed point is the schematic representation with the hole 85 of material 86 fillings that have pore.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
By Fig. 1-Figure 23 as can be known, the present invention is: on the conical bearing working surface, static pressure air-bearing air feed point distribution circle both sides have helical dynamic pressure groove.
The helical dynamic pressure groove of described static pressure air-bearing air feed point distribution circle both sides communicates or is obstructed.
The helical dynamic pressure groove of the described static pressure air-bearing air feed point distribution circle both sides outside has envelope gas limit or does not have envelope gas limit, does not promptly have envelope gas limit and be to have envelope gas limit but envelope gas hem width degree is 0 special case.
The circumferencial direction of described conical bearing working surface upper edge static pressure air-bearing air feed point distribution circle has or does not have a plurality of balancing slits that communicate with both sides helical dynamic pressure groove.
Described static pressure air-bearing air feed point is single layout or double layout.
Described static pressure air-bearing air feed point is hole or slit or the hole of filling with the material that has pore.
Described static pressure air-bearing air feed point and helical dynamic pressure groove on the same working surface or with the corresponding working surface of working surface that has helical dynamic pressure groove on.
The spiral chute dynamic and static pressure composite gas conic bearing of the static pressure air-bearing air feed point of described double layout, the helical dynamic pressure groove direction of static pressure air-bearing air feed point both sides is identical or opposite.
The spiral chute dynamic and static pressure composite gas conic bearing of the static pressure air-bearing air feed point of described double layout, the helical dynamic pressure groove of 2 row's static pressure air-bearing air feed points communicates or is obstructed.
Specific embodiment
Embodiment 1:
As shown in Figure 1, the static pressure air-bearing air feed is put 3 distribution circle both sides and is had the helical dynamic pressure groove 2 that does not communicate on conical bearing working surface 1, and helical dynamic pressure groove 2 outsides have the internal conical surface on envelope gas limit 4, are equipped with smooth outer conical surface.
Embodiment 2:
As shown in Figure 2, the static pressure air-bearing air feed is put 7 distribution circle both sides and is had the helical dynamic pressure groove 6 that does not communicate on conical bearing working surface 5, and helical dynamic pressure groove 6 outsides have the outer conical surface on envelope gas limit 8, are equipped with smooth internal conical surface.
Embodiment 3:
As shown in Figure 3, the static pressure air-bearing air feed is put 11 distribution circle both sides and is had the helical dynamic pressure groove 10 that communicates on conical bearing working surface 9, and helical dynamic pressure groove 10 outsides have the internal conical surface on envelope gas limit 12, are equipped with smooth outer conical surface.
Embodiment 4:
As shown in Figure 4, the static pressure air-bearing air feed is put 15 distribution circle both sides and is had the helical dynamic pressure groove 14 that communicates on conical bearing working surface 13, and helical dynamic pressure groove 14 outsides have the outer conical surface on envelope gas limit 16, are equipped with smooth internal conical surface.
Embodiment 5:
As shown in Figure 5, the static pressure air-bearing air feed is put 19 double layouts on the conical bearing working surface 17, the static pressure air-bearing air feed is put 19 distribution circle both sides and is had the helical dynamic pressure groove 18 that does not communicate, and helical dynamic pressure groove 18 outsides have the internal conical surface on envelope gas limit 20, are equipped with smooth outer conical surface.
Embodiment 6:
As shown in Figure 6, the static pressure air-bearing air feed is put 23 double layouts on the conical bearing working surface 21, the static pressure air-bearing air feed is put 23 distribution circle both sides and is had the helical dynamic pressure groove 22 that does not communicate, and helical dynamic pressure groove 22 outsides have the outer conical surface on envelope gas limit 24, are equipped with smooth internal conical surface.
Embodiment 7:
As shown in Figure 7, the static pressure air-bearing air feed is put 27 double layouts on the conical bearing working surface 25, the static pressure air-bearing air feed is put 27 distribution circle both sides, and to have the helical dynamic pressure groove 26 and the direction that do not communicate identical, helical dynamic pressure groove 26 outsides have the internal conical surface on envelope gas limit 28, are equipped with smooth outer conical surface.
Embodiment 8:
As shown in Figure 8, the static pressure air-bearing air feed is put 31 double layouts on the conical bearing working surface 29, the static pressure air-bearing air feed is put 31 distribution circle both sides, and to have the helical dynamic pressure groove 30 and the direction that do not communicate identical, helical dynamic pressure groove 30 outsides have the outer conical surface on envelope gas limit 32, are equipped with smooth internal conical surface.
Embodiment 9:
As shown in Figure 9, the static pressure air-bearing air feed is put 35 double layouts on the conical bearing working surface 33, the static pressure air-bearing air feed is put 35 distribution circle both sides, and to have the helical dynamic pressure groove 34 and the direction that communicate identical, helical dynamic pressure groove 34 outsides have the internal conical surface on envelope gas limit 36, are equipped with smooth outer conical surface.
Embodiment 10:
As shown in Figure 10, the static pressure air-bearing air feed is put 39 double layouts on the conical bearing working surface 37, the static pressure air-bearing air feed is put 39 distribution circle both sides, and to have the helical dynamic pressure groove 38 and the direction that communicate identical, helical dynamic pressure groove 38 outsides have the outer conical surface on envelope gas limit 40, are equipped with smooth internal conical surface.
Embodiment 11:
As shown in Figure 11, the static pressure air-bearing air feed is put 43 double layouts on the conical bearing working surface 41, the static pressure air-bearing air feed is put 43 distribution circle both sides, and to have the helical dynamic pressure groove 42 and the direction that do not communicate identical, the contiguous helical dynamic pressure groove 42 of 2 row's static pressure air-bearing air feed points 43 communicates, helical dynamic pressure groove 42 outsides have the internal conical surface on envelope gas limit 44, are equipped with smooth outer conical surface.
Embodiment 12:
As shown in Figure 12, the static pressure air-bearing air feed is put 47 double layouts on the conical bearing working surface 45, the static pressure air-bearing air feed is put 47 distribution circle both sides, and to have the helical dynamic pressure groove 46 and the direction that do not communicate identical, the contiguous helical dynamic pressure groove 46 of 2 row's static pressure air-bearing air feed points 47 communicates, helical dynamic pressure groove 46 outsides have the outer conical surface on envelope gas limit 48, are equipped with smooth internal conical surface.
Embodiment 13:
As shown in Figure 13, the static pressure air-bearing air feed is put 51 double layouts on the conical bearing working surface 49, the static pressure air-bearing air feed is put 51 distribution circle both sides, and to have the helical dynamic pressure groove 50 and the direction that communicate identical, the contiguous helical dynamic pressure groove 50 of 2 row's static pressure air-bearing air feed points 51 communicates, helical dynamic pressure groove 50 outsides have the internal conical surface on envelope gas limit 52, are equipped with smooth outer conical surface.
Embodiment 14:
As shown in Figure 14, the static pressure air-bearing air feed is put 55 double layouts on the conical bearing working surface 53, the static pressure air-bearing air feed is put 55 distribution circle both sides, and to have the helical dynamic pressure groove 54 and the direction that communicate identical, the contiguous helical dynamic pressure groove 54 of 2 row's static pressure air-bearing air feed points 55 communicates, helical dynamic pressure groove 54 outsides have the outer conical surface on envelope gas limit 56, are equipped with smooth internal conical surface.
Embodiment 15:
As shown in Figure 15, the static pressure air-bearing air feed is put 59 single layouts on the described conical bearing working surface 57, the circumferencial direction of putting 59 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 60 that communicate with both sides helical dynamic pressure groove 58, helical dynamic pressure groove 58 outsides have the internal conical surface on envelope gas limit 61, are equipped with smooth outer conical surface.
Embodiment 16:
As shown in Figure 16, the static pressure air-bearing air feed is put 64 single layouts on the described conical bearing working surface 62, the circumferencial direction of putting 64 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 65 that communicate with both sides helical dynamic pressure groove 63, helical dynamic pressure groove 63 outsides have the outer conical surface on envelope gas limit 66, are equipped with smooth internal conical surface.
Embodiment 17:
As shown in Figure 17, the static pressure air-bearing air feed is put 69 double layouts on the described conical bearing working surface 67, the circumferencial direction of putting 69 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 70 that communicate with both sides helical dynamic pressure groove 68, helical dynamic pressure groove 68 outsides have the internal conical surface on envelope gas limit 71, are equipped with smooth outer conical surface.
Embodiment 18:
As shown in Figure 18, the static pressure air-bearing air feed is put 74 double layouts on the described conical bearing working surface 72, the circumferencial direction of putting 74 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 75 that communicate with both sides helical dynamic pressure groove 73, helical dynamic pressure groove 73 outsides have the outer conical surface on envelope gas limit 76, are equipped with smooth internal conical surface.
Claims (9)
1. spiral chute dynamic and static pressure composite gas conic bearing, it is characterized in that: on the conical bearing working surface, static pressure air-bearing air feed point distribution circle both sides have helical dynamic pressure groove.
2. as claim 1 described spiral chute dynamic and static pressure composite gas conic bearing, it is characterized in that: the helical dynamic pressure groove of described static pressure air-bearing air feed point distribution circle both sides communicates or is obstructed.
3. as claim 1 described spiral chute dynamic and static pressure composite gas conic bearing, it is characterized in that: the helical dynamic pressure groove outside of described static pressure air-bearing air feed point distribution circle both sides has envelope gas limit or does not have envelope gas limit.
4. as claim 1 described spiral chute dynamic and static pressure composite gas conic bearing, it is characterized in that: the circumferencial direction of described conical bearing working surface upper edge static pressure air-bearing air feed point distribution circle has or does not have a plurality of balancing slits that communicate with both sides helical dynamic pressure groove.
5. as claim 1 described spiral chute dynamic and static pressure composite gas conic bearing, it is characterized in that: described static pressure air-bearing air feed point is single layout or double layout.
6. as claim 1 described spiral chute dynamic and static pressure composite gas conic bearing, it is characterized in that: described static pressure air-bearing air feed point is hole or slit or the hole of filling with the material that has pore.
7. as claim 1 described spiral chute dynamic and static pressure composite gas conic bearing, it is characterized in that: described static pressure air-bearing air feed point and helical dynamic pressure groove on the same working surface or with the corresponding working surface of working surface that has helical dynamic pressure groove on.
8. as the spiral chute dynamic and static pressure composite gas conic bearing of the static pressure air-bearing air feed point of claim 5 described double layouts, it is characterized in that: the helical dynamic pressure groove direction of described static pressure air-bearing air feed point both sides is identical or opposite.
9. as the spiral chute dynamic and static pressure composite gas conic bearing of the static pressure air-bearing air feed point of claim 5 described double layouts, it is characterized in that: the helical dynamic pressure grooves of described 2 row's static pressure air-bearing air feed points communicate or are obstructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510009634 CN1632333A (en) | 2005-01-18 | 2005-01-18 | Mixed type helical groove dynamical and static pressure gas composite conical bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510009634 CN1632333A (en) | 2005-01-18 | 2005-01-18 | Mixed type helical groove dynamical and static pressure gas composite conical bearing |
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| CN1632333A true CN1632333A (en) | 2005-06-29 |
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| CN 200510009634 Pending CN1632333A (en) | 2005-01-18 | 2005-01-18 | Mixed type helical groove dynamical and static pressure gas composite conical bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075416A (en) * | 2013-01-24 | 2013-05-01 | 郑州大学 | Dynamic and static pressure conical bearing with wedged dovetail cavities |
-
2005
- 2005-01-18 CN CN 200510009634 patent/CN1632333A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075416A (en) * | 2013-01-24 | 2013-05-01 | 郑州大学 | Dynamic and static pressure conical bearing with wedged dovetail cavities |
| CN103075416B (en) * | 2013-01-24 | 2015-04-29 | 郑州大学 | Dynamic and static pressure conical bearing with wedged dovetail cavities |
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Owner name: HARBIN INSTITUTE OF TECHNOLOGY Free format text: FORMER OWNER: HARBIN INSTITUTE OF TECHNOLOGY; YAO SHAOMING Effective date: 20060929 |
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Effective date of registration: 20060929 Address after: 150001 No. 92 West straight street, Harbin, Heilongjiang Applicant after: Harbin Institute of Technology Address before: 150001 No. 92 West straight street, Harbin, Heilongjiang Applicant before: Harbin Institute of Technology Co-applicant before: Yao Shaoming |
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