CN1654840A - Composite throttling pressurized air thrust bearing - Google Patents
Composite throttling pressurized air thrust bearing Download PDFInfo
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- CN1654840A CN1654840A CN 200510009745 CN200510009745A CN1654840A CN 1654840 A CN1654840 A CN 1654840A CN 200510009745 CN200510009745 CN 200510009745 CN 200510009745 A CN200510009745 A CN 200510009745A CN 1654840 A CN1654840 A CN 1654840A
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- bearing
- static pressure
- air
- pressure air
- air feed
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Abstract
This invention relates to a super fine static pressure gas locating bearing of high rigidity and large load, which is located with surface cutting flow groove along normal direction of static pressure gas floater feeding point distribution circle and is centered as static pressure gas feeding point and is located with counter pressure grooves non-connected around the distribution circle, wherein the counter pressure groove is connected to the surface flow cutting groove. The bearing has more thirty percent load capacity than the traditional static pressure locating bearing and has more fifteen percent rigidity than the traditional bearing.
Description
Technical field
The present invention relates to a kind of pressurized air thrust bearing, especially ultraprecise, big rigidity, big load gas lubricated thrust bearing.
Background technique
At present, the pressurized air thrust bearing that uses in the engineering, only utilize outer throttling static pressure air-bearing or surface throttle 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, (Zhou Heng, Liu Yanzhu. " aero dynamic bearing principle and calculating ", Chemical Industry Press, 1981; 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 .).The pressurized air thrust bearing of these kinds does not make full use of the composite throttling effect, thereby big bearing capacity and rigidity can not be provided, and poor anti jamming capability, rotating accuracy are difficult to improve.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the above-mentioned technology, the composite throttling pressurized air thrust 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 bearing working face, be processed with the surface groove that dams along static pressure air-bearing air feed point distribution circle Normal direction, with static pressure air-bearing air feed point is the center, circumferencial direction along static pressure air-bearing air feed point distribution circle is processed with the balancing slit that does not communicate, and balancing slit and the neighbouring surface groove that dams communicates.
Described static pressure air-bearing air feed is put single layout.
Described static pressure air-bearing air feed is put double layout.
Described surface throttle groove adopts wide straight trough.
Described surface throttle groove adopts not wide fan groove.
Described static pressure air-bearing air feed point is the hole with throttling action.
Described static pressure air-bearing air feed point is the slit.
Described static pressure air-bearing air feed point is with having the hole that the pore material is filled.
Advantage of the present invention
(1) bearing load carrying capacity improves more than 30% than traditional static pressure air-floating thrust bearing.
(2) bearing rigidity improves more than 15% than traditional static pressure air-floating thrust bearing.
Description of drawings
Accompanying drawing 1 is that the static pressure air-bearing air feed is put 3 single layouts on thrust bearing working surface 1, put the surface throttle groove 2 that 3 distribution circle Normal directions such as have at width along the static pressure air-bearing air feed, put the thrust surface schematic representation that 3 distribution circle circumferencial directions have balancing slit 4 along the static pressure air-bearing air feed.
Accompanying drawing 2 is that the static pressure air-bearing air feed is put 7 double layouts on thrust bearing working surface 5, put the surface throttle groove 6 that 7 distribution circle Normal directions such as have at width along the static pressure air-bearing air feed, put the thrust surface schematic representation that 7 distribution circle circumferencial directions have balancing slit 8 along the static pressure air-bearing air feed.
Accompanying drawing 3 is that the static pressure air-bearing air feed is put 11 single layouts on thrust bearing working surface 9, put 7 distribution circle Normal directions along the static pressure air-bearing air feed and have the step surface throttling groove 10 that does not wait width, put the thrust surface schematic representation that 11 distribution circle circumferencial directions have balancing slit 12 along the static pressure air-bearing air feed.
Accompanying drawing 4 is that the static pressure air-bearing air feed is put 15 double layouts on thrust bearing working surface 13, put 7 distribution circle Normal directions along the static pressure air-bearing air feed and have the step surface throttling groove 14 that does not wait width, put the thrust surface schematic representation that 15 distribution circle circumferencial directions have balancing slit 16 along the static pressure air-bearing air feed.
Accompanying drawing 5 is that static pressure air-bearing air feed point 17 is the schematic representation with hole 18 of throttle effect.
Accompanying drawing 6 is that static pressure air-bearing air feed point is the schematic representation in slit 19.
Accompanying drawing 7 is that static pressure air-bearing air feed point 20 is the schematic representation with the hole of material 21 fillings that have pore.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
By Fig. 1-Fig. 7 as can be known, the present invention is: on bearing working face, be processed with the surface throttle groove along static pressure air-bearing air feed point distribution circle Normal direction, with static pressure air-bearing air feed point is the center, circumferencial direction along static pressure air-bearing air feed point is processed with the balancing slit that does not communicate, and balancing slit communicates with neighbouring surface throttling groove.
Described static pressure air-bearing air feed is put single layout.
Described static pressure air-bearing air feed is put double layout.
Described surface throttle groove adopts wide straight trough.
Described surface throttle groove adopts not wide dovetail groove.
Described static pressure air-bearing air feed point is the hole 18 with throttling action.
Described static pressure air-bearing air feed point is slit 19.
Described static pressure air-bearing air feed point is with having the hole that pore material 21 is filled.
Specific embodiment:
Embodiment 1:
As shown in Figure 1, the static pressure air-bearing air feed is put 3 single layouts on thrust bearing working surface 1, put the surface throttle groove 2 that 3 distribution circle Normal directions such as have at width along the static pressure air-bearing air feed, put the thrust surface that 3 distribution circle circumferencial directions have balancing slit 4 along the static pressure air-bearing air feed, be equipped with smooth circular flat.
Embodiment 2:
As shown in Figure 2, the static pressure air-bearing air feed is put 7 double layouts on thrust bearing working surface 5, put the surface throttle groove 6 that 7 distribution circle Normal directions such as have at width along the static pressure air-bearing air feed, put the thrust surface that 7 distribution circle circumferencial directions have balancing slit 8 along the static pressure air-bearing air feed, be equipped with smooth circular flat.
Embodiment 3:
As shown in Figure 3, the static pressure air-bearing air feed is put 11 single layouts on thrust bearing working surface 9, put 7 distribution circle Normal directions along the static pressure air-bearing air feed and have the step surface throttling groove 10 that does not wait width, put the thrust surface that 11 distribution circle circumferencial directions have balancing slit 12 along the static pressure air-bearing air feed, be equipped with smooth circular flat.
Embodiment 4:
As shown in Figure 4, the static pressure air-bearing air feed is put 15 double layouts on thrust bearing working surface 13, put 7 distribution circle Normal directions along the static pressure air-bearing air feed and have the step surface throttling groove 14 that does not wait width, put the thrust surface that 15 distribution circle circumferencial directions have balancing slit 16 along the static pressure air-bearing air feed, be equipped with smooth circular flat.
In embodiment 1-4, static pressure air-bearing air feed point adopts to have hole 18, the slit 19 of throttling action or has the hole that pore material 21 is filled, and all can.
The surface throttle trench cross-section can adopt rectangle, triangle, trapezoidal or semicircle etc.
Claims (8)
1. pressurized air thrust bearing, it is characterized in that: on bearing working face, be processed with the surface groove that dams along static pressure air-bearing air feed point distribution circle Normal direction, with static pressure air-bearing air feed point is the center, circumferencial direction along static pressure air-bearing air feed point distribution circle is processed with the balancing slit that does not communicate, and balancing slit and the neighbouring surface groove that dams communicates.
2. as claim 1 described pressurized air thrust bearing, it is characterized in that: described static pressure air-bearing air feed is put single layout.
3. as claim 1 described pressurized air thrust bearing, it is characterized in that: described static pressure air-bearing air feed is put double layout.
4. as claim 1 described pressurized air thrust bearing, it is characterized in that: the described surface groove that dams adopts wide straight trough.
5. as claim 1 described pressurized air thrust bearing, it is characterized in that: the not wide fan groove of groove employing dams on described surface.
6. as claim 1 described pressurized air thrust bearing, it is characterized in that: described static pressure air-bearing air feed point is the hole with throttling action.
7. as claim 1 described pressurized air thrust bearing, it is characterized in that: described static pressure air-bearing air feed point is the slit.
8. as claim 1 described pressurized air thrust bearing, it is characterized in that: described static pressure air-bearing air feed point is with having the hole that the pore material is filled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510009745 CN1654840A (en) | 2005-02-17 | 2005-02-17 | Composite throttling pressurized air thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510009745 CN1654840A (en) | 2005-02-17 | 2005-02-17 | Composite throttling pressurized air thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1654840A true CN1654840A (en) | 2005-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510009745 Pending CN1654840A (en) | 2005-02-17 | 2005-02-17 | Composite throttling pressurized air thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1654840A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338790B (en) * | 2008-08-13 | 2010-05-12 | 哈尔滨工业大学 | Gas/ solid two-phase composite gyration basic method and device |
| CN110039330A (en) * | 2019-05-25 | 2019-07-23 | 哈尔滨工业大学 | A kind of high thrust enclosed gas-static turntable |
| CN115614386A (en) * | 2022-10-09 | 2023-01-17 | 哈尔滨工业大学 | Small-hole type aerostatic radial bearing shaft sleeve and bearing with high-pressure air cavity |
-
2005
- 2005-02-17 CN CN 200510009745 patent/CN1654840A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338790B (en) * | 2008-08-13 | 2010-05-12 | 哈尔滨工业大学 | Gas/ solid two-phase composite gyration basic method and device |
| CN110039330A (en) * | 2019-05-25 | 2019-07-23 | 哈尔滨工业大学 | A kind of high thrust enclosed gas-static turntable |
| CN115614386A (en) * | 2022-10-09 | 2023-01-17 | 哈尔滨工业大学 | Small-hole type aerostatic radial bearing shaft sleeve and bearing with high-pressure air cavity |
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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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| C41 | Transfer of patent application or patent right or utility model | ||
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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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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |