CN201448373U - Bearing shaft sleeve with raised edge - Google Patents
Bearing shaft sleeve with raised edge Download PDFInfo
- Publication number
- CN201448373U CN201448373U CN2009200444115U CN200920044411U CN201448373U CN 201448373 U CN201448373 U CN 201448373U CN 2009200444115 U CN2009200444115 U CN 2009200444115U CN 200920044411 U CN200920044411 U CN 200920044411U CN 201448373 U CN201448373 U CN 201448373U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- rib
- shaft sleeve
- cut
- vee
- 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 discloses a bearing shaft sleeve with a raised edge, which comprises a shaft sleeve body and a radial raised edge positioned at one end of the shaft sleeve body, wherein a grinding wheel grinding undercut is arranged at the joint where the shaft sleeve body and the radial raised edge are connected; the axial cross section of the grinding wheel grinding undercut is a V-shaped groove, an included angle alpha between a tessellation line at one groove edge of the V-shaped groove and a tessellation line on the outer peripheral surface of the shaft sleeve body is an acute angle, and arc transition is arranged at the part where the other groove edge of the V-shaped groove is connected with the radial raised edge. The bearing shaft sleeve adopts the V-shaped groove structure, the defect of breakage resulted from the part where the excircle of the bearing shaft sleeve is connected with the inner side of the raised edge is liable to generate stress concentration, thereby enhancing the strength of the shaft sleeve and prolonging the service life of the bearing shaft sleeve with an raised edge.
Description
Technical field
The utility model relates to a kind of bearing, relates in particular to a kind of bearing axle sleeve that is used for the automobile gearbox gear transmission, belongs to technical field of bearings.
Background technique
Automobile gearbox is the important device that is used for changing automobile driving speed, and the bearing axle sleeve of band rib is fixedlyed connected with the transmission shaft in being contained in automobile gearbox, and its outside suit has the retainer of rolling element.In order to guarantee the running accuracy of a whole set of bearing, the cylindrical of axle sleeve and rib inboard all need grinding, and for this reason, sleeve outer circle and rib joint are provided with a grinding wheel groove, can both grinding put in place with cylindrical and the rib that guarantees axle sleeve.The shape of existing axle sleeve grinding wheel groove processes grinding wheel groove 3 at the cylindrical 11 of axle sleeve and the joint of rib inboard 21 as shown in Figure 1.For the bearing axle sleeve of some rib wall ratios than thin band rib, if process grinding wheel groove 3 as shown in Figure 1, because the wall thickness of rib 2 is thinner, will reduce the bearing axle sleeve intensity of band rib, the cylindrical 11 of axle sleeve and the joint of rib inboard 21 are easy to generate stress and concentrate, and the while is for the bearing axle sleeve of the smaller band rib of some rib diameters, because rib 2 diameters are less, its rib useful area reduces, and can produce adverse influence to the guiding of bearing.
The model utility content
Thinner in order to overcome the bearing axle sleeve rib wall thickness that existing automobile gearbox uses, being easy to generate stress in the joint of the cylindrical of axle sleeve and rib inboard concentrates, the bearing axle sleeve of the band rib that rib diameter is smaller is to the guiding unfavourable defect of bearing, the utility model provides a kind of bearing axle sleeve with rib, this axle sleeve has improved the bearing axle sleeve intensity of band rib, has avoided stress to concentrate.
The purpose of this utility model is achieved by the following technical programs.
A kind of bearing axle sleeve with rib comprises the axle sleeve body, is positioned at the radially rib of axle sleeve body one end, described axle sleeve body and radially the joint of rib be provided with grinding wheel groove; The axial cross section of described grinding wheel groove is a vee-cut, and the plain line of described vee-cut one limes marginis is an acute angle with the plain wire clamp angle α of the outer circumferential face of internal axle sleeve body, another limes marginis of described vee-cut and rib joint arc transition radially.
The purpose of this utility model can also further realize by following technical measures.
The bearing internal axle sleeve of aforesaid band rib, the angle α of plain line of wherein said vee-cut one limes marginis and the plain line of axle sleeve body outer circumferential face is 15 °～25 °.
The bearing axle sleeve of aforesaid band rib, the width A of wherein said vee-cut are 1.0 millimeters～2.0 millimeters; The depth B of vee-cut is 0.3 millimeter～0.5 millimeter; Another limes marginis of vee-cut and between radially rib has a common boundary the fillet R of arc transition be 0.1 millimeter～0.5 millimeter.
Grinding wheel groove of the present utility model adopts the vee-cut structure, has avoided the joint of bearing sleeve outer circle and rib inboard to be easy to generate the concentrated defective that causes its fracture of stress, has improved the intensity of axle sleeve, has prolonged the working life of the bearing axle sleeve of band rib.
Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiments only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is the sleeve outer circle of existing bearing axle sleeve and the local amplification profile of the inboard joint of rib;
Fig. 2 is a sectional view of the present utility model;
Fig. 3 is the C portion cutaway view Amplified image of Fig. 2.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, the inboard joint of the sleeve outer circle of existing bearing axle sleeve and rib is provided with a grinding wheel groove 3, this grinding wheel groove 3 comprises that sleeve outer circle place width is the axial groove 11 of B for the A degree of depth, comprise that also rib 2 inboard cup depths are the groove 21 of B, wherein, the angle α of the plain line of groove and internal axle sleeve body outer circumferential face, groove and rib 21 inboards is 45 °.Since radial groove 21 attenuates the thickness of rib 2, reduced the intensity of bearing axle sleeve; Simultaneously being easy to generate stress in the joint of the cylindrical 1 of axle sleeve and rib 2 inboards concentrates.
As Fig. 2, shown in Figure 3, the utility model comprises axle sleeve body 1, is positioned at the radially rib 2 of axle sleeve body 1 one ends, axle sleeve body 1 and radially the joint of rib 2 be provided with grinding wheel groove 3; The axial cross section of described grinding wheel groove 3 is a vee-cut, and the outer circumferential face 11 plain wire clamp angle α of described vee-cut one limes marginis, 31 plain lines and axle sleeve body 1 are 15 °～25 °, and present embodiment is 20 °; Another limes marginis of vee-cut 32 is 0.1 millimeter～0.5 millimeter with the joint fillet R of rib 2 radially; The width A of vee-cut 31 is 1.0 millimeters～2.0 millimeters, and the depth B of vee-cut 31 is 0.3 millimeter～0.5 millimeter.
Owing to do not have radial groove on the radially rib 2 of the present utility model, a little less than the intensity of axle sleeve rib can not fallen; Adopt round-corner transition simultaneously owing to the employing vee-cut, and in the joint of vee-cut limit and rib 2 inboards, avoided the sleeve outer circle 1 of bearing axle sleeve and rib 2 inboard joints generation stress to concentrate.
In addition to the implementation, the utility model can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (5)
1. the bearing axle sleeve with rib comprises axle sleeve body (1), is positioned at the radially rib (2) of axle sleeve body (1) one end, described axle sleeve body (1) and radially the joint of rib (2) be provided with grinding wheel groove (3); It is characterized in that, the axial cross section of described grinding wheel groove (3) is a vee-cut, the plain wire clamp of outer circumferential face (11) the angle α of plain line of described vee-cut one limes marginis (31) and internal axle sleeve body (1) is an acute angle, another limes marginis of described vee-cut (32) and rib (2) joint arc transition radially.
2. the bearing axle sleeve of band rib according to claim 1 is characterized in that, the angle α of plain line of described vee-cut one limes marginis (31) and the plain line of internal axle sleeve body (1) outer circumferential face (11) is 15 °～25 °.
3. the bearing axle sleeve of band rib according to claim 1 is characterized in that, the width A of described vee-cut (31) is 1.0 millimeters～2.0 millimeters.
4. the bearing axle sleeve of band rib according to claim 1 is characterized in that, the depth B of described vee-cut (31) is 0.3 millimeter～0.5 millimeter.
5. the bearing axle sleeve of band rib according to claim 1 is characterized in that, another limes marginis of vee-cut (32) is 0.1 millimeter～0.5 millimeter with the fillet R of rib (2) joint arc transition radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200444115U CN201448373U (en) | 2009-06-03 | 2009-06-03 | Bearing shaft sleeve with raised edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200444115U CN201448373U (en) | 2009-06-03 | 2009-06-03 | Bearing shaft sleeve with raised edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448373U true CN201448373U (en) | 2010-05-05 |
Family
ID=42553089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200444115U Expired - Fee Related CN201448373U (en) | 2009-06-03 | 2009-06-03 | Bearing shaft sleeve with raised edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814681A (en) * | 2012-08-30 | 2012-12-12 | 无锡易通精密机械股份有限公司 | Collet tool for boring tool |
-
2009
- 2009-06-03 CN CN2009200444115U patent/CN201448373U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814681A (en) * | 2012-08-30 | 2012-12-12 | 无锡易通精密机械股份有限公司 | Collet tool for boring tool |
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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: 20100505 Termination date: 20180603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |