CN1632336A - Split type chevron-notch dynamical and static pressure gas composite ball bearing - Google Patents
Split type chevron-notch dynamical and static pressure gas composite ball bearing Download PDFInfo
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- CN1632336A CN1632336A CN 200510009637 CN200510009637A CN1632336A CN 1632336 A CN1632336 A CN 1632336A CN 200510009637 CN200510009637 CN 200510009637 CN 200510009637 A CN200510009637 A CN 200510009637A CN 1632336 A CN1632336 A CN 1632336A
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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 composite sphere bearing, especially ultraprecise, ultra high speed gas spheric bearing.
Background technique
At present, the static pressure gas spheric 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 spheric 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 separated chevron-notch dynamical and static pressure gas composite sphere 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 spherical bearing working surface, and static pressure air-bearing air feed point distribution circle both sides have man type dynamic pressure groove.
Described man type dynamic pressure groove middle part communicates or is obstructed.
The man type dynamic pressure groove of described static pressure air-bearing air feed point distribution circle both sides communicates or is obstructed.
The man type 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, i.e. the man type dynamic pressure groove outside does not have that envelope gas limit is that the man type dynamic pressure groove outside has envelope gas limit but the width on envelope gas limit is 0 special case.
The circumferencial direction of described spherical 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 man type 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 man type dynamic pressure groove on the same working surface or with the corresponding working surface of working surface that has man type dynamic pressure groove on.
Advantage of the present invention
(1) bearing load carrying capacity improves more than 30% than traditional static pressure air-bearing spherical bearing.
(2) bearing rigidity improves more than 15% than traditional static pressure air-bearing spherical 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 man type dynamic pressure groove 2 that do not communicate of middle part on spherical bearing working surface 1, and man type dynamic pressure groove 2 outsides have the inner ball 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 man type dynamic pressure groove 6 that do not communicate of middle part on spherical bearing working surface 5, and man type dynamic pressure groove 6 outsides have the outer spherical 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 man type dynamic pressure groove 10 that communicates of middle part on spherical bearing working surface 9, and man type dynamic pressure groove 10 outsides have the inner ball 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 man type dynamic pressure groove 14 that communicates of middle part on spherical bearing working surface 13, and man type dynamic pressure groove 14 outsides have the outer spherical surface schematic representation on envelope gas limit 16.
Accompanying drawing 5 is that the static pressure air-bearing air feed is put 19 distribution circle both sides and had the man type dynamic pressure groove 18 that communicates of middle part on spherical bearing working surface 17, the man type dynamic pressure groove 18 that the static pressure air-bearing air feed is put 19 distribution circle both sides communicates, and man type dynamic pressure groove 18 outsides have the inner ball surface schematic representation on envelope gas limit 20.
Accompanying drawing 6 is that the static pressure air-bearing air feed is put 23 distribution circle both sides and had the man type dynamic pressure groove 22 that communicates of middle part on spherical bearing working surface 21, the man type dynamic pressure groove 22 that the static pressure air-bearing air feed is put 23 distribution circle both sides communicates, and man type dynamic pressure groove 22 outsides have the outer spherical 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 spherical bearing working surface 25, the static pressure air-bearing air feed is put 27 distribution circle both sides and is had the man type dynamic pressure groove 26 that the middle part does not communicate, and man type dynamic pressure groove 26 outsides have the inner ball 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 spherical bearing working surface 29, the static pressure air-bearing air feed is put 31 distribution circle both sides and is had the man type dynamic pressure groove 30 that the middle part does not communicate, and man type dynamic pressure groove 30 outsides have the outer spherical 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 spherical bearing working surface 33, the static pressure air-bearing air feed is put 35 distribution circle both sides and is had the man type dynamic pressure groove 34 that the middle part communicates, and man type dynamic pressure groove 34 outsides have the inner ball 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 spherical bearing working surface 37, the static pressure air-bearing air feed is put 39 distribution circle both sides and is had the man type dynamic pressure groove 38 that the middle part communicates, and man type dynamic pressure groove 38 outsides have the outer spherical surface schematic representation on envelope gas limit 40.
Accompanying drawing 11 is that the static pressure air-bearing air feed is put 43 distribution circle both sides and had the man type dynamic pressure groove 42 that communicates of middle part on spherical bearing working surface 41, the circumferencial direction of putting 43 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 69 that communicate with both sides man type dynamic pressure groove 42, and man type dynamic pressure groove 42 outsides have the inner ball surface schematic representation on envelope gas limit 44.
Accompanying drawing 12 is that the static pressure air-bearing air feed is put 47 distribution circle both sides and had the man type dynamic pressure groove 46 that communicates of middle part on spherical bearing working surface 45, the circumferencial direction of putting 47 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 70 that communicate with both sides man type dynamic pressure groove 46, and man type dynamic pressure groove 46 outsides have the outer spherical surface schematic representation on envelope gas limit 48.
Accompanying drawing 13 is that the static pressure air-bearing air feed is put 51 double layouts on spherical bearing working surface 49, the static pressure air-bearing air feed is put 51 distribution circle both sides and is had the man type dynamic pressure groove 50 that the middle part communicates, the circumferencial direction of putting 51 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 53 that communicate with both sides man type dynamic pressure groove 50, and man type dynamic pressure groove 50 outsides have the inner ball surface schematic representation on envelope gas limit 52.
Accompanying drawing 14 is that the static pressure air-bearing air feed is put 56 double layouts on spherical bearing working surface 54, the static pressure air-bearing air feed is put 56 distribution circle both sides and is had the man type dynamic pressure groove 55 that the middle part communicates, the circumferencial direction of putting 56 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 58 that communicate with both sides man type dynamic pressure groove 55, and man type dynamic pressure groove 55 outsides have the outer spherical surface schematic representation on envelope gas limit 57.
Accompanying drawing 15 is described static pressure air-bearing air feed point 61 and the schematic representation of man type dynamic pressure groove 60 on same working surface 59.
Accompanying drawing 16 are described static pressure air-bearing air feed points 64 with the working surface 62 corresponding working surfaces that have man type dynamic pressure groove 63 on schematic representation.
Accompanying drawing 17 is schematic representation that described static pressure air-bearing air feed point 65 is holes.
Accompanying drawing 18 is schematic representation that described static pressure air-bearing air feed point 66 is slits.
Accompanying drawing 19 is that described static pressure air-bearing air feed point 67 is the schematic representation with the hole of material 68 fillings that have pore.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
By Fig. 1-Figure 19 as can be known, the present invention is: on the spherical bearing working surface, static pressure air-bearing air feed point distribution circle both sides have man type dynamic pressure groove.
Described man type dynamic pressure groove middle part communicates or is obstructed.
The man type dynamic pressure groove of described static pressure air-bearing air feed point distribution circle both sides communicates or is obstructed.
The man type 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, i.e. the man type dynamic pressure groove outside does not have that envelope gas limit is that the man type dynamic pressure groove outside has envelope gas limit but the width on envelope gas limit is 0 special case.
The circumferencial direction of described spherical 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 man type 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 man type dynamic pressure groove on the same working surface or with the corresponding working surface of working surface that has man type dynamic pressure groove on.
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 man type dynamic pressure groove 2 that the middle part does not communicate on spherical bearing working surface 1, and man type dynamic pressure groove 2 outsides have the inner ball surface on envelope gas limit 4, are equipped with smooth outer spherical 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 man type dynamic pressure groove 6 that the middle part does not communicate on spherical bearing working surface 5, and man type dynamic pressure groove 6 outsides have the outer spherical surface on envelope gas limit 8, are equipped with smooth inner ball 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 man type dynamic pressure groove 10 that the middle part communicates on spherical bearing working surface 9, and man type dynamic pressure groove 10 outsides have the inner ball surface on envelope gas limit 12, are equipped with smooth outer spherical 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 man type dynamic pressure groove 14 that the middle part communicates on spherical bearing working surface 13, and man type dynamic pressure groove 14 outsides have the outer spherical surface on envelope gas limit 16, are equipped with smooth inner ball surface.
Embodiment 5:
As shown in Figure 5, the static pressure air-bearing air feed is put 19 distribution circle both sides and is had the man type dynamic pressure groove 18 that the middle part communicates on spherical bearing working surface 17, the man type dynamic pressure groove 18 that the static pressure air-bearing air feed is put 19 distribution circle both sides communicates, man type dynamic pressure groove 18 outsides have the inner ball surface on envelope gas limit 20, are equipped with smooth outer spherical surface.
Embodiment 6:
As shown in Figure 6, the static pressure air-bearing air feed is put 23 distribution circle both sides and is had the man type dynamic pressure groove 22 that the middle part communicates on spherical bearing working surface 21, the man type dynamic pressure groove 22 that the static pressure air-bearing air feed is put 23 distribution circle both sides communicates, man type dynamic pressure groove 22 outsides have the outer spherical surface on envelope gas limit 24, are equipped with smooth inner ball surface.
Embodiment 7:
As shown in Figure 7, the static pressure air-bearing air feed is put 27 double layouts on spherical bearing working surface 25, the static pressure air-bearing air feed is put 27 distribution circle both sides and is had the man type dynamic pressure groove 26 that the middle part does not communicate, and man type dynamic pressure groove 26 outsides have the inner ball surface on envelope gas limit 28, are equipped with smooth outer spherical surface.
Embodiment 8:
As shown in Figure 8, the static pressure air-bearing air feed is put 31 double layouts on spherical bearing working surface 29, the static pressure air-bearing air feed is put 31 distribution circle both sides and is had the man type dynamic pressure groove 30 that the middle part does not communicate, and man type dynamic pressure groove 30 outsides have the outer spherical surface on envelope gas limit 32, are equipped with smooth inner ball surface.
Embodiment 9:
As shown in Figure 9, the static pressure air-bearing air feed is put 35 double layouts on spherical bearing working surface 33, the static pressure air-bearing air feed is put 35 distribution circle both sides and is had the man type dynamic pressure groove 34 that the middle part communicates, and man type dynamic pressure groove 34 outsides have the inner ball surface on envelope gas limit 36, are equipped with smooth outer spherical surface.
Embodiment 10:
As shown in Figure 10, the static pressure air-bearing air feed is put 39 double layouts on spherical bearing working surface 37, the static pressure air-bearing air feed is put 39 distribution circle both sides and is had the man type dynamic pressure groove 38 that the middle part communicates, and man type dynamic pressure groove 38 outsides have the outer spherical surface on envelope gas limit 40, are equipped with smooth inner ball surface.
Embodiment 11:
As shown in Figure 11, the static pressure air-bearing air feed is put 43 distribution circle both sides and is had the man type dynamic pressure groove 42 that the middle part communicates on spherical bearing working surface 41, the circumferencial direction of putting 43 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 69 that communicate with both sides man type dynamic pressure groove 42, man type dynamic pressure groove 42 outsides have the inner ball surface on envelope gas limit 44, are equipped with smooth outer spherical surface.
Embodiment 12:
As shown in Figure 12, the static pressure air-bearing air feed is put 47 distribution circle both sides and is had the man type dynamic pressure groove 46 that the middle part communicates on spherical bearing working surface 45, the circumferencial direction of putting 47 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 70 that communicate with both sides man type dynamic pressure groove 46, man type dynamic pressure groove 46 outsides have the outer spherical surface on envelope gas limit 48, are equipped with smooth inner ball surface.
Embodiment 13:
As shown in Figure 13, the static pressure air-bearing air feed is put 51 double layouts on spherical bearing working surface 49, the static pressure air-bearing air feed is put 51 distribution circle both sides and is had the man type dynamic pressure groove 50 that the middle part communicates, the circumferencial direction of putting 51 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 53 that communicate with both sides man type dynamic pressure groove 50, man type dynamic pressure groove 50 outsides have the inner ball surface on envelope gas limit 52, are equipped with smooth outer spherical surface.
Embodiment 14:
As shown in Figure 14, the static pressure air-bearing air feed is put 56 double layouts on spherical bearing working surface 54, the static pressure air-bearing air feed is put 56 distribution circle both sides and is had the man type dynamic pressure groove 55 that the middle part communicates, the circumferencial direction of putting 56 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 58 that communicate with both sides man type dynamic pressure groove 55, man type dynamic pressure groove 55 outsides have the outer spherical surface on envelope gas limit 57, are equipped with smooth inner ball surface.
Claims (8)
1. chevron-notch dynamic and static pressure composite gas spheric bearing, it is characterized in that: on the spherical bearing working surface, static pressure air-bearing air feed point distribution circle both sides have man type dynamic pressure groove.
2. as claim 1 described chevron-notch dynamic and static pressure composite gas spheric bearing, it is characterized in that: described man type dynamic pressure groove middle part communicates or is obstructed.
3. as claim 1 described chevron-notch dynamic and static pressure composite gas spheric bearing, it is characterized in that: the man type dynamic pressure groove of described static pressure air-bearing air feed point distribution circle both sides communicates or is obstructed.
4. as claim 1 described chevron-notch dynamic and static pressure composite gas spheric bearing, it is characterized in that: the man type 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.
5. as claim 1 described chevron-notch dynamic and static pressure composite gas spheric bearing, it is characterized in that: the circumferencial direction of described spherical 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 man type dynamic pressure groove.
6. as claim 1 described chevron-notch dynamic and static pressure composite gas spheric bearing, it is characterized in that: described static pressure air-bearing air feed point is single layout or double layout.
7. as claim 1 described chevron-notch dynamic and static pressure composite gas spheric 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.
8. as claim 1 described chevron-notch dynamic and static pressure composite gas spheric bearing, it is characterized in that: described static pressure air-bearing air feed point and man type dynamic pressure groove on the same working surface or with the corresponding working surface of working surface that has man type dynamic pressure groove on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510009637 CN1632336A (en) | 2005-01-18 | 2005-01-18 | Split type chevron-notch dynamical and static pressure gas composite ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510009637 CN1632336A (en) | 2005-01-18 | 2005-01-18 | Split type chevron-notch dynamical and static pressure gas composite ball bearing |
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|---|---|
| CN1632336A true CN1632336A (en) | 2005-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510009637 Pending CN1632336A (en) | 2005-01-18 | 2005-01-18 | Split type chevron-notch dynamical and static pressure gas composite ball bearing |
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| Country | Link |
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| CN (1) | CN1632336A (en) |
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2005
- 2005-01-18 CN CN 200510009637 patent/CN1632336A/en active Pending
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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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