CN202531652U - Micro precision bearing - Google Patents
Micro precision bearing Download PDFInfo
- Publication number
- CN202531652U CN202531652U CN2012201697809U CN201220169780U CN202531652U CN 202531652 U CN202531652 U CN 202531652U CN 2012201697809 U CN2012201697809 U CN 2012201697809U CN 201220169780 U CN201220169780 U CN 201220169780U CN 202531652 U CN202531652 U CN 202531652U
- Authority
- CN
- China
- Prior art keywords
- sheet
- retainer
- retaining frame
- raceway
- rolling element
- 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 - Fee Related
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a micro precision bearing used for a high speed rotating electric spindle. An outer raceway is arranged on the inner circle surface of an outer ring of the micro precision bearing in a circumferential direction; an inner raceway is arranged on the outer circle surface of an inner ring of the micro precision bearing in a circumferential direction; a rolling body is arranged in a rolling body raceway; a retaining frame left sheet is arranged on the left side of the rolling body; a retaining frame right sheet is arranged on the right side of the rolling body; the retaining frame left sheet and the retaining frame right sheet are integrally fixed together by a rivet; a dustproof groove is formed in the outer ring; a dustproof cover and a clamping spring are mounted in the dustproof groove; a first reinforcing sheet matched with the left end surface of the retaining frame left sheet in shape adheres to the left end surface of the retaining frame left sheet; and a second reinforcing sheet matched with the right end surface of the retaining frame right sheet in shape adheres to the right end surface of the retaining frame right sheet. According to the utility model, the retaining frames can be more closely connected with each other; the bearing capacity of the retaining frame and deformation capacity of the retaining frame at high temperature are improved, so that the service life of the retaining frame is prolonged, the service life of the bearing is prolonged and the product utilization rate is increased.
Description
Technical field
The utility model relates to a kind of bearing, specifically is used for the micro precision bearing above the electric main shaft of high speed rotating.
Background technique
The electric mainshaft bearing that is used for high speed rotating mainly is made up of outer ring, inner ring, retainer, rolling element, dust ring, jump ring, grease etc.Be employed between outer ring and the inner ring rolling element is installed; With the retainer location, even separation roller of retainer and maintenance rolling element proper exercise, retainer adopt two-part to form and couple together by rivet; Dust cover is put in the dustproof groove of outer ring; Play dustproof and prevent that grease from leaking outside, jump ring blocks dust cover, and grease plays lubricated and forms effect such as oil film.This bearing is assemblied in above the electric main shaft of high speed rotating; The bearing of high speed rotating can produce very big heat, can be easy to make the retainer distortion like this, and it is stuck that bearing is taken place; Cause bearing failure, so this just just requires very strict to the Placement of retainer.
Summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the existing technology; Provide a kind of retainer that can make to connect together more closely; The intensity of retainer by force, thereby the life-span of having improved retainer also guarantee that bearing and whole electric main shaft can stablize the micro precision bearing that rotates more simultaneously.
The technological scheme that provides according to the utility model; Said micro precision bearing comprises outer ring, inner ring, rolling element, retainer left side sheet, the right sheet of retainer, rivet, dust cover and jump ring, the internal circular surfaces raceway outside it is circumferentially with in the outer ring; Outer round surface at inner ring is circumferentially with interior raceway along it; Outer raceway and interior raceway are formed complete rolling element raceway, in the rolling element raceway, are provided with rolling element, are provided with retainer left side sheet in the left side of rolling element; Be provided with the right sheet of retainer on the right side of rolling element; The right sheet of retainer left side sheet and retainer is fixed as one through rivet, on the outer ring, offers dustproof groove, in dustproof groove, dust cover and jump ring is installed; The left side of sheet is stained with first reinforced sheet that cooperates with this end surface shape on a retainer left side, is stained with second reinforced sheet that cooperates with this end surface shape in the right side of the right sheet of retainer.
The outside diameter of said first reinforced sheet is 23 ~ 25mm, and the interior circular diameter of first reinforced sheet is 18 ~ 22mm, and the thickness of first reinforced sheet is 0.4 ~ 0.6mm.
The outside diameter of said second reinforced sheet is 23 ~ 25mm, and the interior circular diameter of second reinforced sheet is 18 ~ 22mm, and the thickness of second reinforced sheet is 0.4 ~ 0.6mm.
The utility model structure can make retainer link together more closely; Regular meeting causes small slight crack owing to the head that is rivet when the turnery rivet directly contacts with the retainer surface; On left and right of retainer, respectively paste a reinforced sheet; Fully turnery rivet and make tightr that retainer connects avoids the surface small slight crack to occur, sticks the intensity that reinforced sheet can increase retainer in addition on the surface of retainer; The bearing capacity of retainer and deformability have at high temperature been improved; Thereby improved the life-span of retainer, prolonged the working life of bearing, improved the utilization ratio of product.
Description of drawings
Fig. 1 is the overall structure schematic representation of the utility model.
Fig. 2 is a retainer structure left view.
Fig. 3 is A-A sectional view of Fig. 2.
Embodiment
Below in conjunction with concrete accompanying drawing and embodiment the utility model is described further.
As shown in the figure, the utility model mainly is made up of parts such as outer ring 1, inner ring 2, rolling element 3, retainer left side sheet 4.1, the right sheet 4.2 of retainer, rivet 5, dust cover 6, jump ring 7, first reinforced sheet 8.1 and second reinforced sheets 8.2.
This micro precision bearing; Comprise outer ring 1, inner ring 2, rolling element 3, retainer left side sheet 4.1, the right sheet 4.2 of retainer, rivet 5, dust cover 6 and jump ring 7, the internal circular surfaces raceway outside it is circumferentially with in outer ring 1 is circumferentially with interior raceway at the outer round surface of inner ring 2 along it; Outer raceway and interior raceway are formed complete rolling element raceway; In the rolling element raceway, be provided with rolling element 3, be provided with retainer left side sheet 4.1 in the left side of rolling element 3, be provided with the right sheet 4.2 of retainer on the right side of rolling element 3; Retainer left side sheet 4.1 is fixed as one through rivet 5 with the right sheet 4.2 of retainer; Retainer left side sheet 4.1 is called retainer after being fixed as one through rivet 5 with the right sheet 4.2 of retainer, on outer ring 1, offers dustproof groove, in dustproof groove, dust cover 6 and jump ring 7 is installed; The left side of sheet 4.1 is stained with first reinforced sheet 8.1 that cooperates with this end surface shape on a retainer left side, is stained with second reinforced sheet 8.2 that cooperates with this end surface shape in the right side of the right sheet 4.2 of retainer.
The outside diameter of said first reinforced sheet 8.1 is 23 ~ 25mm, and the interior circular diameter of first reinforced sheet 8.1 is 18 ~ 22mm, and the thickness of first reinforced sheet 8.1 is 0.4 ~ 0.6mm.
The outside diameter of said second reinforced sheet 8.2 is 23 ~ 25mm, and the interior circular diameter of second reinforced sheet 8.2 is 18 ~ 22mm, and the thickness of second reinforced sheet 8.2 is 0.4 ~ 0.6mm.
Lean on rolling element 3 to connect between outer ring 1 and the inner ring 2; Retainer separates rolling element 3 uniformly, and retainer links together with rivet 5 closely, wherein; Retainer left side sheet 4.1 is to stick together with viscose glue with first reinforced sheet 8.1 that aluminium flake is made; The right sheet 4.2 of retainer is to stick together with viscose glue with second reinforced sheet 8.2 that aluminium flake is made, and dust cover 6 is pressed in the dustproof groove, blocks with jump ring 7.
Retainer is like Fig. 2,3, shown in 4 in the utility model; Before not pasting first reinforced sheet 8.1, second reinforced sheet 8.2, directly retainer left side sheet 4.1 and the right sheet 4.2 of retainer are coupled together, when turnery rivet 5 with rivet; Rivet 5 can be pressed in the left side of retainer left side sheet 4.1 and the right side of the right sheet 4.2 of retainer; Can stay a lot of small slight crack hidden danger like this, cause the retainer stamping press to be difficult to control, what retainer connected is not very fastening; This just causes bearing in the process of high speed rotating, can make the retainer cracking, thereby has influence on the working life of bearing.
Grind off the left side thickness 0.5mm of retainer left side sheet 4.1 earlier; Aluminium matter first reinforced sheet 8.1 and the outside diameter of doing an outside diameter again and be 23 ~ 25mm, interior circular diameter and be 18 ~ 22mm, thickness and be 0.4 ~ 0.6mm are that 23 ~ 25mm, interior circular diameter are that 18 ~ 22mm, thickness are aluminium matter second reinforced sheet 8.2 of 0.4 ~ 0.6mm; First reinforced sheet 8.1 and second reinforced sheet 8.2 eight diameter dimensions that all evenly distribute are 0.8 ~ 1.0mm through hole; Glue first reinforced sheet 8.1 and retainer left side sheet 4.1, second reinforced sheet 8.2 with the right sheet 4.2 of retainer with viscose glue; Couple together retainer left side sheet 4.1 and the right sheet 4.2 of retainer with rivet 5 again; Like this, not only can when turnery rivet 5, make rivet 5 fully contact the surface of retainer through first reinforced sheet 8.1 and second reinforced sheet 8.2; Closely connecting retainer; First reinforced sheet 8.1 and second reinforced sheet 8.2 have also increased the intensity of retainer simultaneously, thereby have improved the bearing capacity and the non-deformability of retainer, the working life of also having improved bearing.
Claims (3)
1. micro precision bearing; Comprise outer ring (1), inner ring (2), rolling element (3), retainer left side sheet (4.1), the right sheet (4.2) of retainer, rivet (5), dust cover (6) and jump ring (7); Internal circular surfaces raceway outside it is circumferentially with in outer ring (1); Outer round surface at inner ring (2) is circumferentially with interior raceway along it; Outer raceway and interior raceway are formed complete rolling element raceway, in the rolling element raceway, are provided with rolling element (3), are provided with retainer left side sheet (4.1) in the left side of rolling element (3); Be provided with the right sheet (4.2) of retainer on the right side of rolling element (3); Retainer left side sheet (4.1) is fixed as one through rivet (5) with the right sheet of retainer (4.2), on outer ring (1), offers dustproof groove, in dustproof groove, dust cover (6) and jump ring (7) is installed; It is characterized in that: the left side at retainer left side sheet (4.1) is stained with first reinforced sheet (8.1) that cooperates with this end surface shape, is stained with second reinforced sheet (8.2) that cooperates with this end surface shape in the right side of the right sheet of retainer (4.2).
2. micro precision bearing as claimed in claim 1 is characterized in that: the outside diameter of said first reinforced sheet (8.1) is 23 ~ 25mm, and the interior circular diameter of first reinforced sheet (8.1) is 18 ~ 22mm, and the thickness of first reinforced sheet (8.1) is 0.4 ~ 0.6mm.
3. micro precision bearing as claimed in claim 1 is characterized in that: the outside diameter of said second reinforced sheet (8.2) is 23 ~ 25mm, and the interior circular diameter of second reinforced sheet (8.2) is 18 ~ 22mm, and the thickness of second reinforced sheet (8.2) is 0.4 ~ 0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201697809U CN202531652U (en) | 2012-04-19 | 2012-04-19 | Micro precision bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201697809U CN202531652U (en) | 2012-04-19 | 2012-04-19 | Micro precision bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531652U true CN202531652U (en) | 2012-11-14 |
Family
ID=47132840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201697809U Expired - Fee Related CN202531652U (en) | 2012-04-19 | 2012-04-19 | Micro precision bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531652U (en) |
-
2012
- 2012-04-19 CN CN2012201697809U patent/CN202531652U/en not_active Expired - Fee Related
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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: 20121114 Termination date: 20150419 |
|
| EXPY | Termination of patent right or utility model |