CN201125939Y - Novel miniature bearing with spring cylindrical pin - Google Patents
Novel miniature bearing with spring cylindrical pin Download PDFInfo
- Publication number
- CN201125939Y CN201125939Y CNU200720307075XU CN200720307075U CN201125939Y CN 201125939 Y CN201125939 Y CN 201125939Y CN U200720307075X U CNU200720307075X U CN U200720307075XU CN 200720307075 U CN200720307075 U CN 200720307075U CN 201125939 Y CN201125939 Y CN 201125939Y
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- CN
- China
- Prior art keywords
- inner ring
- spin
- steel ball
- straight pin
- cylindrical
- Prior art date
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- Expired - Fee Related
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Abstract
A novel minisize bearing with a cylindrical spring spin includes: a cylindrical spin with a spin 1, a step shaft inner ring 2, a dust-proof cover 3, an outer ring 4, d steel ball 5 and a holding frame 6. The inner ring 2 is step shaft structure, wherein a small step is equipped with a steel ball 5 channel and end surface of a large step is equipped with a cylindrical spin hole, the cylindrical spin with a spin 1 is arranged in the cylindrical spin hole, one end of the cylindrical spin with a spin 1 is a hollow device on which a narrow groove is axial arranged and external diameter of which shrinks slightly; the dust-proof cover 3 is arranged near surface end of the step shaft inner ring 2, and the steel ball 5 is fixed on the channel of the step shaft inner ring 2 and the outer ring 4 by the holding frame. The minisize bearing can greatly increase efficiency and accuracy of examination and synchronously can save abundant material and source.
Description
Technical field
The utility model belongs to technical field of bearings, particularly a kind of miniature bearing of novel band spring straight pin.
Background technique
Miniature bearing generally is meant external diameter less than 26mm or the internal diameter bearing less than 10mm, and it normally is made up of four kinds of parts such as outer ring, inner ring, steel ball and retainers.Except that steel ball, outer ring, inner ring and retainer are the short cylindrical shape usually, and it is simple in structure, regular shape.Miniature bearing is used very extensive aspect small-sized machines such as micromachine, instrument and apparatus, calculating machine.
The mounting type of the miniature bearing of conventional structure on main frame is fairly simple.Be generally speaking Bearing Installation in the bearing chamber of main frame, the rotary axis system two supports is in brearing bore, but the inner ring of axial restraint bearing or outer ring in case of necessity, thereby rotary axis system is installed on the tram of main frame.
Above-mentioned turning axle great majority are that bearing journal and work axle journal are the concentric shafts system of same axis, the axis bias 2mm of the relative bearing journal of work axle journal.Under test conditionss such as the load of stipulating, rotating speed, should be able to accurately rupture in the step place.Because aspects such as material, structures, such eccentric shaft design and manufacturing are all very difficult, adopt one-piece rotor shaft to carry out this rupture test also ten minutes waste material and resource simultaneously.
Summary of the invention
In order to overcome above-mentioned deficiency, the utility model provides a kind of miniature bearing of novel band spring straight pin, utilizes this bearing can improve the efficient and the accuracy of test greatly, can save wide variety of materials and resource simultaneously.
In order to realize the foregoing invention purpose, adopt following technological scheme:
The miniature bearing of described novel band cylindrical spring pin is made up of band spring straight pin, step axle inner ring, dust cover, outer ring, steel ball, retainer, wherein inner ring is a step axle construction, small stair is provided with the steel ball raceway groove, big step end face is provided with cylinder pin hole, equipped band spring straight pin in cylinder pin hole, band spring straight pin one end is the hollow setting, and it axially opens narrow groove, external diameter can shrink by trace; Near the equipped dust cover of step axle inner ring face end, steel ball is fixed on the raceway groove of step axle inner ring and outer ring by retainer.
Owing to take technological scheme as mentioned above, the utlity model has following superiority:
1. test efficiency improves greatly.The mounting or dismounting time of step eccentric shaft structure is long, when adopting spring straight pin structure, the time decreased of mounting or dismounting spring straight pin 50～70%;
2. the test accuracy improves greatly.Because spring straight pin diameter is little, compares with the step eccentric shaft, the spring straight pin is subjected to the influence of factors such as structure, material, heat treatment little, and accuracy improves more than 50%.
3. simplified shafting structure.Simplify test axle construction, reduced difficulty of processing.
3. wide variety of materials and resource have been saved.Because experiment quantity is very big, when adopting the step eccentric shaft to test, scrap once testing promptly to accuse, greatly waste raw material.When adopting spring straight pin structure, test then can repeatedly reuse with axle.
Description of drawings
Fig. 1 is the miniature bearing structural representation of band spring straight pin;
Fig. 2 is the use schematic representation of the miniature bearing of paired band spring straight pin;
Among the above-mentioned figure: 1-band spring straight pin; 8-step axle inner ring; The 3-dust cover; The 4-outer ring; The 5-steel ball; The 6-retainer; 7-tests axle.
Embodiment
As shown in Figure 1: the miniature bearing of novel band cylindrical spring pin of the present utility model is made up of band spring straight pin 1, step axle inner ring 2, dust cover 3, outer ring 4, steel ball 5, retainer 6, wherein inner ring 1 is a step axle construction, small stair is provided with steel ball 5 raceway grooves, big step end face is provided with cylinder pin hole, equipped band spring straight pin 1 in cylinder pin hole, band spring straight pin 1 one ends are the hollow setting, and it axially opens narrow groove, external diameter can shrink by trace; Near the equipped dust cover 3 of 2 ends of step axle inner ring, steel ball 5 is fixed on the raceway groove of step axle inner ring 2 and outer ring 4 by retainer 6.
As shown in Figure 2: the miniature bearing of band spring straight pin generally is paired use.External diameter, internal diameter and the groove width of She Ji band spring straight pin 1 as requested, design the cylinder pin hole of step axle inner ring and end face thereof then, band spring straight pin 1 is packed in the cylinder pin hole of step axial end, itself and outer ring 4, steel ball 5, retainer 6, dust cover 3 and lubricating grease etc. are being assembled into qualified miniature bearing.
During work, the miniature bearing of band spring straight pin 1 is packed in the bearing chamber of testing apparatus, will test spools 7 and be contained on the spring straight pin and get final product.Under the test mass of stipulating, test speed, carry out correlation test.After the off-test, pull down test axle 7, adopt special tool to take out the band spring straight pin 1 of fracture, the band spring straight pin of packing into new is then tested according to said sequence next time.
After adopting this new micro bearing, improve test efficiency and test accuracy greatly, the short form test shafting structure is saved wide variety of materials and resource.
Claims (1)
1, a kind of miniature bearing of novel band spring straight pin, it is characterized in that: this miniature bearing is made up of band spring straight pin 1, step axle inner ring 2, dust cover 3, outer ring 4, steel ball 5, retainer 6, wherein inner ring 1 is a step axle construction, small stair is provided with steel ball 5 raceway grooves, big step end face is provided with cylinder pin hole, equipped band spring straight pin 1 in cylinder pin hole, band spring straight pin 1 one ends are the hollow setting, it axially opens narrow groove, external diameter can shrink by trace; Near the equipped dust cover 3 of 2 ends of step axle inner ring, steel ball 5 is fixed on the raceway groove of step axle inner ring 2 and outer ring 4 by retainer 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720307075XU CN201125939Y (en) | 2007-11-30 | 2007-11-30 | Novel miniature bearing with spring cylindrical pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720307075XU CN201125939Y (en) | 2007-11-30 | 2007-11-30 | Novel miniature bearing with spring cylindrical pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201125939Y true CN201125939Y (en) | 2008-10-01 |
Family
ID=39999408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720307075XU Expired - Fee Related CN201125939Y (en) | 2007-11-30 | 2007-11-30 | Novel miniature bearing with spring cylindrical pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201125939Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486374A (en) * | 2019-07-31 | 2019-11-22 | 无锡诚石轴承有限公司 | A kind of multi-diameter shaft bearing arrangement |
-
2007
- 2007-11-30 CN CNU200720307075XU patent/CN201125939Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486374A (en) * | 2019-07-31 | 2019-11-22 | 无锡诚石轴承有限公司 | A kind of multi-diameter shaft bearing arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20151130 |
|
| EXPY | Termination of patent right or utility model |