CN2670660Y - Static pressurized shafting with closed balls - Google Patents
Static pressurized shafting with closed balls Download PDFInfo
- Publication number
- CN2670660Y CN2670660Y CNU200320103808XU CN200320103808U CN2670660Y CN 2670660 Y CN2670660 Y CN 2670660Y CN U200320103808X U CNU200320103808X U CN U200320103808XU CN 200320103808 U CN200320103808 U CN 200320103808U CN 2670660 Y CN2670660 Y CN 2670660Y
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- CN
- China
- Prior art keywords
- main shaft
- bearing
- shafting
- static
- utility
- 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.)
- Expired - Lifetime
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- Rolling Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Abstract
The utility model discloses a static pressurized shafting with closed balls, solving the problem that the existing shafting component has low carrying capacity and is easy to be ground owing to the comparatively big bearing pressure of the single ball when the work load or the vibration is increased. The utility model is composed of a pushing force holder 8 mounted on a main shaft 1, a plurality of bearings 2 mounted along the outer circumference of the main shaft 1. The bearings 2 are closed balls bearings having closed balls mounted on a bearing holder 7. The utility model is used for the main shaft supporting device requiring big carrying capacity and high precision of the mechanical operation.
Description
Technical field: the utility model relates to a kind of close pearl static-pressure shafting.
Background technique: existing axle is that the component load-bearing ability is low, because single bead pressure ratio is bigger, pulverizes easily under the situation of working load increasing or vibrations.
Summary of the invention: the purpose of this utility model provides the high static-pressure shafting of a kind of bearing capacity.
Above-mentioned purpose realizes by following technological scheme:
Close pearl static-pressure shafting, its composition comprises: be installed in the thrust retainer on the main shaft, one group of bearing be housed along the excircle of described main shaft, bearing be ball intensive be installed in sealed bead bearing in the bearing bracket stand.
Above-mentioned close pearl static-pressure shafting, the bottom of described main shaft have the hydrostatic bearing of band roller.
Above-mentioned close pearl static-pressure shafting is interference fit between described sealed bead bearing and main shaft and the axle sleeve, has the gap between described hydrostatic bearing and the main shaft.
This technological scheme has following beneficial effect:
1. adopt high-precision close pearl framework and sealed bead bearing, configuration of load such as the close pearl of load can keep the highi degree of accuracy running under heavy duty around main shaft.
2. the fluid bearing that has pressure-bearing below the main shaft, when main bearing was stressed, the fluid bearing that is positioned at the main shaft end was born main load, had reduced the pressure of load to close pearl position, the running life of having improved sealed bead bearing, had guaranteed the running accuracy of main shaft.
3. be arranged in bar shaped sealed bead bearing frame around the main shaft and guaranteed the effective distributing position of close pearl, guaranteed the stable delivery of thrust load.
Description of drawings: accompanying drawing 1 is the structural representation of this product.
Accompanying drawing 2 is plan views of accompanying drawing 1.
Embodiment:
Embodiment 1:
Close pearl static-pressure shafting, its composition comprises: be installed in the thrust retainer 8 on the main shaft 1, one group of bearing 2 be housed along the excircle of described main shaft 1, bearing 2 be ball intensive be installed in sealed bead bearing in the retainer 7.
Embodiment 2:
Above-mentioned close pearl static-pressure shafting, the bottom 5 of described main shaft 1 have the hydrostatic bearing 4 of band roller 6.
Embodiment 3:
Above-mentioned close pearl static-pressure shafting is interference fit between described sealed bead bearing 2 and main shaft 1 and the axle sleeve 3, has gap 9 between described hydrostatic bearing 4 and the main shaft.
Claims (3)
1. close pearl static-pressure shafting, its composition comprises: be installed in the thrust-bearing on the main shaft, it is characterized in that: the excircle along described main shaft is equipped with one group of bearing, described bearing be ball intensive be installed in sealed bead bearing in the bearing bracket stand.
2. close pearl static-pressure shafting according to claim 1, it is characterized in that: the bottom of described main shaft has hydrostatic bearing.
3. close pearl static-pressure shafting according to claim 1 and 2 is characterized in that: be interference fit between described sealed bead bearing and main shaft and the axle sleeve, have the gap between described hydrostatic bearing and the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200320103808XU CN2670660Y (en) | 2003-05-29 | 2003-10-22 | Static pressurized shafting with closed balls |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03260018.6 | 2003-05-29 | ||
| CN03260018 | 2003-05-29 | ||
| CNU200320103808XU CN2670660Y (en) | 2003-05-29 | 2003-10-22 | Static pressurized shafting with closed balls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2670660Y true CN2670660Y (en) | 2005-01-12 |
Family
ID=34523694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200320103808XU Expired - Lifetime CN2670660Y (en) | 2003-05-29 | 2003-10-22 | Static pressurized shafting with closed balls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2670660Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124054A (en) * | 2021-04-27 | 2021-07-16 | 北京工业大学 | Air-float thrust bearing based on outer ring coplane suction load |
| CN113124055A (en) * | 2021-04-27 | 2021-07-16 | 北京工业大学 | Air-float thrust bearing based on radial dense-bead adsorption |
| CN113958603A (en) * | 2021-10-12 | 2022-01-21 | 中国科学院光电技术研究所 | High-precision dense-bead shaft system |
-
2003
- 2003-10-22 CN CNU200320103808XU patent/CN2670660Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124054A (en) * | 2021-04-27 | 2021-07-16 | 北京工业大学 | Air-float thrust bearing based on outer ring coplane suction load |
| CN113124055A (en) * | 2021-04-27 | 2021-07-16 | 北京工业大学 | Air-float thrust bearing based on radial dense-bead adsorption |
| CN113124055B (en) * | 2021-04-27 | 2023-03-14 | 北京工业大学 | Air-float thrust bearing based on radial dense-bead adsorption |
| CN113958603A (en) * | 2021-10-12 | 2022-01-21 | 中国科学院光电技术研究所 | High-precision dense-bead shaft system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131022 Granted publication date: 20050112 |