CN103883615A - Precise bearing - Google Patents
Precise bearing Download PDFInfo
- Publication number
- CN103883615A CN103883615A CN201410084862.7A CN201410084862A CN103883615A CN 103883615 A CN103883615 A CN 103883615A CN 201410084862 A CN201410084862 A CN 201410084862A CN 103883615 A CN103883615 A CN 103883615A
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- China
- Prior art keywords
- bowl
- shell
- bearing
- ring
- hole
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Abstract
The invention discloses a precise bearing, which comprises a shell, a lower bearing bowl and an upper bearing bowl, wherein the shell is semi-closed and cylindrical; a through hole A through which a shaft penetrates is formed in the center of the closed end of the shell; the lower bearing bowl is arranged at the bottom of the closed end of the shell; a roller of the precise bearing is arranged between the upper and lower bearing bowls; the diameter of a wall surface at one side where the upper bearing bowl contacts the roller is less than the inner diameter of the through hole A; a pressing ring is fixed at the open end of the shell; a ring-shaped spring of which the diameter is greater than the inner diameter of the through hole A is arranged between the pressing ring and the upper bowl; a through hole B through which the shaft penetrates is formed in the center of the pressing ring. According to the invention, a dynamic bearing bowl mechanism is arranged at the internal of the bearing and pre-tightened by virtue of the ring-shaped spring, so that the stability of the rotation of the bearing can be improved and the frame amount of the bearing can be reduced.
Description
Technical field
The present invention relates to a kind of precision bearing, belong to precision optical machinery field.
Background technique
In the running of precision optical machinery, because the ball body of bearing inside belongs to and axle bowl Spielpassung, rotating shaft, in rotation process, can produce certain axial vibration, axial vibration meeting affects the running precision of precision optical machinery, and very person can affect the precision of product.
Summary of the invention
The object of the invention is to: provide a kind of precision bearing of low frame amount, the radial vibration can to a certain degree reduce axle rotation time, the stability of raising equipment.
The present invention realizes by the following method:
A kind of precision bearing, described precision bearing comprises shell, lower shaft bowl and upper axle bowl, described shell is semi-enclosed cylindrical, be provided with the through hole A passing for axle at the closed end center of shell, described lower shaft bowl is arranged on the closed end bottom of shell, the roller of precision bearing is arranged between axle bowl and lower shaft bowl, and contact with the roller diameter of wall of a side of described upper axle bowl is less than the internal diameter of through hole A; The opening end of described shell is fixed with a pressure ring, between described pressure ring and upper axle bowl, is provided with the coil spring that a diameter is greater than through hole A internal diameter, and described pressure ring center is provided with a through hole B who passes for axle.
As further innovation of the present invention, described pressure ring comprises positioning ring, described positioning ring is fixed on outer casing inner wall, the bottom of described positioning ring contacts with upper axle bowl top, the internal diameter of described positioning ring is greater than the diameter of coil spring, described positioning ring center is provided with a hold-down ring by screw thread, and described coil spring carries out pretension by hold-down ring.
As further innovation of the present invention, described positioning ring is fixed on the inwall of shell by screw thread.
As further innovation of the present invention, in the outer wall of described lower shaft bowl, be processed with some circular grooves, in described circular groove, be socketed with the rubber ring that bore is greater than circular groove cross section bore.
As further innovation of the present invention, described shell adopts high speed steel to make.
beneficial effect
1, the present invention is by a dynamic Zhou Wan mechanism is set in bearing inside, and carries out pretension by coil spring, and the stability can improve bearing and rotate time reduces the rotating bezel amount of bearing.
What 2, the coil spring of bearing inside can be good carries out certain buffering to shaft vibration, improves the stability of equipment, reduces noise.
3, coil spring carries out pretension by a hold-down ring, can be easily according to actual conditions, such as: required precision and torsion requirement, the decrement of coil spring is preset, improve adjustable.
4, in bearing, be also provided with one for the positioning ring to coil spring guiding, improve the stability of coil spring start, prevent that coil spring is distorted, the stuck bearing of deflection.
5, lower shaft bowl of the present invention is fixing by a rubber ring and bearing case clamping, after the wearing and tearing of axle bowl, can dismantle bearing easily.
6, positioning ring of the present invention is fixed in the enclosure by screw thread, by rotation positioning ring, can dismantle easily cleaning to bearing.
Brief description of the drawings
Fig. 1 is generalized section of the present invention.
In figure: 1, shell; 2, positioning ring; 3, hold-down ring; 4, coil spring; 5, rubber ring; 6, lower shaft bowl; 7, roller; 8, upper axle bowl.
Embodiment
Be described further below in conjunction with accompanying drawing
As shown in Figure 1, this product is a kind of precision optical machinery bearing that can reduce axostylus axostyle axial runout, comprise shell 1, be semi-enclosed cylindrical at shell 1, process a through hole A who passes for axostylus axostyle at the closed end of shell 1, the sidewall of lower shaft bowl 6 is processed with an annular groove, in groove, be inlaid with rubber ring 5, lower shaft bowl 6 is fastened on by rubber ring 5 on the inwall of shell 1, roller 7 is arranged between axle bowl 8 and lower shaft bowl 6, on the opening end inwall of shell 1, fix a positioning ring 2 by screw thread, one end of positioning ring 2 is fixed with a hold-down ring 3 by screw thread, between hold-down ring 3 and the outer wall of upper axle bowl 8, be provided with a coil spring 4, upper axle bowl 8 is by under the contention effect of coil spring 4, axle bowl 8 and lower shaft bowl 6 can be fitted tightly with roller, but upper axle bowl 8 is with lower shaft bowl 6 and rigidly fix, so can not affect again the smoothness of rotation, coil spring 4 can reduce the gap between upper axle bowl 8 and lower shaft bowl 6 simultaneously, axial vibration while reducing spindle rotation.
The advantage of this product is:
1, by a dynamic Zhou Wan mechanism is set in bearing inside, and carry out pretension by coil spring, the stability can improve bearing and rotate time, reduces the rotating bezel amount of bearing.
What 2, the coil spring of bearing inside can be good carries out certain buffering to shaft vibration, improves the stability of equipment, reduces noise.
3, coil spring carries out pretension by a hold-down ring, can be easily according to actual conditions, such as: required precision and torsion requirement, the decrement of coil spring is preset, improve adjustable.
4, in bearing, be also provided with one for the positioning ring to coil spring guiding, improve the stability of coil spring start, prevent that coil spring is distorted, the stuck bearing of deflection.
5, lower shaft bowl is fixing by a rubber ring and bearing case clamping, after the wearing and tearing of axle bowl, can dismantle bearing easily.
6, positioning ring is fixed in the enclosure by screw thread, by rotation positioning ring, can dismantle easily cleaning to bearing.
Claims (5)
1. a precision bearing, it is characterized in that: described precision bearing comprises shell, lower shaft bowl and upper axle bowl, described shell is semi-enclosed cylindrical, be provided with the through hole A passing for axle at the closed end center of shell, described lower shaft bowl is arranged on the closed end bottom of shell, the roller of precision bearing is arranged between axle bowl and lower shaft bowl, and contact with the roller diameter of wall of a side of described upper axle bowl is less than the internal diameter of through hole A; The opening end of described shell is fixed with a pressure ring, between described pressure ring and upper axle bowl, is provided with the coil spring that a diameter is greater than through hole A internal diameter, and described pressure ring center is provided with a through hole B who passes for axle.
2. a kind of precision bearing as claimed in claim 1, it is characterized in that: described pressure ring comprises positioning ring, described positioning ring is fixed on outer casing inner wall, the bottom of described positioning ring contacts with upper axle bowl top, the internal diameter of described positioning ring is greater than the diameter of coil spring, described positioning ring center is provided with a hold-down ring by screw thread, and described coil spring carries out pretension by hold-down ring.
3. a kind of precision bearing as claimed in claim 2, is characterized in that: described positioning ring is fixed on the inwall of shell by screw thread.
4. a kind of precision bearing as claimed in claim 1, is characterized in that: in the outer wall of described lower shaft bowl, be processed with some circular grooves, be socketed with the rubber ring that bore is greater than circular groove cross section bore in described circular groove.
5. a kind of precision bearing as claimed in claim 1, is characterized in that: described shell adopts high speed steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084862.7A CN103883615A (en) | 2014-03-10 | 2014-03-10 | Precise bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084862.7A CN103883615A (en) | 2014-03-10 | 2014-03-10 | Precise bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103883615A true CN103883615A (en) | 2014-06-25 |
Family
ID=50952680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410084862.7A Pending CN103883615A (en) | 2014-03-10 | 2014-03-10 | Precise bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103883615A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571570A (en) * | 2018-06-05 | 2019-12-13 | 泰科电子(上海)有限公司 | Connector with a locking member |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3808556A1 (en) * | 1988-03-15 | 1989-09-28 | Kugelfischer G Schaefer & Co | Angular contact rolling bearing, particularly for steering columns of motor vehicles |
| JPH01269714A (en) * | 1988-03-04 | 1989-10-27 | Roulements Nadella Sa | Pre-loaded roller bearing |
| CN1497192A (en) * | 2002-09-24 | 2004-05-19 | 美蓓亚株式会社 | Double row ball bearing and double row ball bearing preload applying method |
| CN101338788A (en) * | 2007-07-04 | 2009-01-07 | Skf公司 | Thrust bearing device |
| CN101688552A (en) * | 2007-06-22 | 2010-03-31 | 奥迪股份公司 | Be used for mechanical component is carried out the device of axial preload |
-
2014
- 2014-03-10 CN CN201410084862.7A patent/CN103883615A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01269714A (en) * | 1988-03-04 | 1989-10-27 | Roulements Nadella Sa | Pre-loaded roller bearing |
| DE3808556A1 (en) * | 1988-03-15 | 1989-09-28 | Kugelfischer G Schaefer & Co | Angular contact rolling bearing, particularly for steering columns of motor vehicles |
| CN1497192A (en) * | 2002-09-24 | 2004-05-19 | 美蓓亚株式会社 | Double row ball bearing and double row ball bearing preload applying method |
| CN101688552A (en) * | 2007-06-22 | 2010-03-31 | 奥迪股份公司 | Be used for mechanical component is carried out the device of axial preload |
| CN101338788A (en) * | 2007-07-04 | 2009-01-07 | Skf公司 | Thrust bearing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571570A (en) * | 2018-06-05 | 2019-12-13 | 泰科电子(上海)有限公司 | Connector with a locking member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140625 |