CN205136368U - High strength quenching and tempering resistant grinding shaft hold - Google Patents
High strength quenching and tempering resistant grinding shaft hold Download PDFInfo
- Publication number
- CN205136368U CN205136368U CN201520825828.0U CN201520825828U CN205136368U CN 205136368 U CN205136368 U CN 205136368U CN 201520825828 U CN201520825828 U CN 201520825828U CN 205136368 U CN205136368 U CN 205136368U
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- CN
- China
- Prior art keywords
- cover
- bearing
- rolls
- ring
- high strength
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- 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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Abstract
The utility model discloses a high strength quenching and tempering resistant grinding shaft hold, resistant grinding shaft contracting draws together joint bearing, cover and retaining ring roll, each processing of cover hole both ends of rolling has a retaining ring groove, and the joint bearing dress is in the hole of cover that rolls to be in the intermediate position, the hole both ends retaining ring inslot that overlaps that rolls is equipped with the retaining ring the cover excircle both ends processing of rolling there is the tapering, roll the cover for doughnut -shaped structure, along ring shape the outer circumference of roll cover is opened there is the ring channel, the ring channel is located the middle part of rolling and overlapping, joint bearing's the passageway that refuels is located in the ring channel, joint bearing surface mosaic has wear -resisting graphite alloy granule. The utility model has the advantages that: comparing ordinary casting bearing wearability and improving 1 times, fracture toughness improves more than 2 times, can satisfy than operation requirement under adverse circumstances and the complicated situation of atress.
Description
Technical field
The utility model relates to a kind of bearing means, in particular, relates to the modified anti-friction bearing of a kind of high strength.
Background technique
Bearing is in mechanical transmission course, play parts that are fixing and reduction load friction factor.When other parts produce relative movement each other on axle, bearing is used for reducing the fixing parts of friction factor in power transmission process and retainer shaft central position, its major function is supported mechanical solid of rotation, in order to reduce the mechanical load friction factor of equipment in transmission process.Bearing is the important foundation component of all kinds of mechanized equipment, and its precision, performance, life and reliability play conclusive effect to the precision of main frame, performance, life and reliability.
Common rolling bearing, the ball grooves of bearing outer ring and bearing inner race is semi-circular structure, when bearing assemble, the ball grooves of bearing outer ring and bearing inner race and ball closely touch and are rotatably assorted, bearing only can bear the thrust load of radial load and trace, in time suffering from larger axis and impact to power, bearing is easily damaged; And during bearing high speed rotating, easily there is skidding in bearing outer ring and bearing support; Common rolling bearing directly arranges polytetrafluoroethylene floor on the internal surface of outer ring, and polytetrafluoroethylene floor contacts with the outer surface of inner ring, and its area of contact is large, and frictional force is relatively large, easily weares and teares.Above-mentioned phenomenon all seriously reduce rolling bearing precision, performance, the life-span.
The bearing be widely used at present in the moving element in heavy-duty machinery engineering equipment mainly adopts and is evenly distributed on the moving surface of bearing by solid lubrication post, makes in running, can be formed and effectively lubricate transfer membrane.But because bearing adopts relatively soft Cuprum alloy to be basic material mostly, its surface hardness is lower, so in many environment harshly, bearing is vulnerable to wearing and tearing, causes the equipment failure because bearing occlusion produces.
Model utility content
The utility model for the deficiency of existing product, and provide a kind of rational in infrastructure, practical, shock-resistant wear-resisting while there is the modified anti-friction bearing of a kind of high strength of high tenacity.
The modified anti-friction bearing of a kind of high strength of the present utility model, described anti-friction bearing comprises joint shaft bearing, roll cover and back-up ring, described rolling cover endoporus two ends are respectively processed with a circlip groove, joint shaft bearing is contained in and rolls in the endoporus of cover, and mediate, the endoporus two ends circlip groove of the described cover that rolls is processed with tapering built with cover cylindrical two ends of rolling described in back-up ring, described rolling cover is cirque structure, excircle along the cover that rolls described in ring has circular groove, described circular groove is positioned at the middle part of the described cover that rolls, the filling passage of joint shaft bearing is positioned at described circular groove, described facet joint bearing surface is inlaid with wear-resisting graphite alloy particle.
Preferably, described joint shaft bearing adopts the one in middle-carbon steel, high carbon steel or chromansil steel to make.
Preferably, described joint shaft bearing is made up of steel for carburizing, and Carburization Treatment is carried out on surface, and surface hardness is 68HRC ~ 70HRC, and inner hardness is 50HRC ~ 58HRC.
Preferably, described surface of rolling cover is provided with wearable hard alloy layer.
Preferably, the ring solid forging that the described cover that rolls is cut into by numerical control plasma cutting machine forms.
The beneficial effects of the utility model are:
1, adopt steel for carburizing manufacture, Carburization Treatment is carried out on surface, makes bearing heart portion softer, and surface is comparatively hard, therefore has stronger shock-resistant ability, and has higher wear resistance;
2, solid forging is compared common cast bearing wear resistance and is improved 1 times, fracture toughness improves more than 2 times, can meet compared with usage requirement under rugged environment and stressed complicated state, and cost of material is increased less than 30%, face checking situation is prevented while there is toughness, avoid and cast the stress point that causes and concentrate situation, effectively improve bearing intensity and rigidity;
3, rolling cover cylindrical two ends are processed with tapering, facilitate this bearing unit to move on slideway.The cover that simultaneously rolls is interior hard outer soft, and under the larger operating mode of impact, endoporus can not produce distortion; External diameter is softer, can not damage slideway.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: joint shaft bearing 1, rolling cover 2, back-up ring 3, rolling cover external conicity 21.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
Embodiment 1
In the drawings, the modified anti-friction bearing of a kind of high strength of the present utility model forms primarily of joint shaft bearing 1, rolling cover 2, back-up ring 3, the cover external conicity 21 that rolls.
Described anti-friction bearing comprises joint shaft bearing 1, rolling cover 2 and back-up ring 3, described rolling cover 2 endoporus two ends are respectively processed with a circlip groove, joint shaft bearing 1 is contained in the endoporus of rolling cover 2, and mediate, the endoporus two ends circlip groove of described rolling cover 2 is processed with tapering 21 built with cover 2 cylindrical two ends of rolling described in back-up ring 3, described rolling cover 2 is cirque structure, excircle along the cover 2 that rolls described in ring has circular groove, described circular groove is positioned at the middle part of described rolling cover 2, the filling passage of joint shaft bearing 1 is positioned at described circular groove, described joint shaft bearing 1 surface inserting has wear-resisting graphite alloy particle.
Embodiment 2
With embodiment 1 unlike; Stating joint shaft bearing 1 adopts the one in middle-carbon steel, high carbon steel or chromansil steel to make.Described joint shaft bearing 1 is made up of steel for carburizing, and Carburization Treatment is carried out on surface, and surface hardness is 68HRC ~ 70HRC, and inner hardness is 50HRC ~ 58HRC.Employing steel for carburizing manufactures, and Carburization Treatment is carried out on surface, makes bearing heart portion softer, and surface is comparatively hard, therefore has stronger shock-resistant ability, and has higher wear resistance.
Embodiment 3
With embodiment 1 unlike; The ring solid forging that described rolling cover 2 is cut into by numerical control plasma cutting machine forms.The surface of described rolling cover 2 is provided with wearable hard alloy layer.Solid forging is compared common cast bearing wear resistance and is improved 1 times, fracture toughness improves more than 2 times, can meet compared with usage requirement under rugged environment and stressed complicated state, and cost of material is increased less than 30%, face checking situation is prevented while there is toughness, avoid and cast the stress point that causes and concentrate situation, effectively improve bearing intensity and rigidity.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. the modified anti-friction bearing of high strength, it is characterized in that, described anti-friction bearing comprises joint shaft bearing (1), roll cover (2) and back-up ring (3), described rolling cover (2) endoporus two ends are respectively processed with a circlip groove, joint shaft bearing (1) is contained in and rolls in the endoporus of cover (2), and mediate, the endoporus two ends circlip groove of the described cover (2) that rolls is processed with tapering (21) built with the described rolling cover of back-up ring (3) (2) cylindrical two ends, described rolling cover (2) is cirque structure, excircle along the cover (2) that rolls described in ring has circular groove, described circular groove is positioned at the middle part of the described cover (2) that rolls, the filling passage of joint shaft bearing (1) is positioned at described circular groove, described joint shaft bearing (1) surface inserting has wear-resisting graphite alloy particle.
2. the modified anti-friction bearing of a kind of high strength according to claim 1, is characterized in that, described joint shaft bearing (1) adopts the one in middle-carbon steel, high carbon steel or chromansil steel to make.
3. the modified anti-friction bearing of a kind of high strength according to claim 1, is characterized in that, described joint shaft bearing (1) is made up of steel for carburizing, and Carburization Treatment is carried out on surface, and surface hardness is 68HRC ~ 70HRC, and inner hardness is 50HRC ~ 58HRC.
4. the modified anti-friction bearing of a kind of high strength according to claim 1, is characterized in that, described surface of rolling cover (2) is provided with wearable hard alloy layer.
5. the modified anti-friction bearing of a kind of high strength according to claim 1, is characterized in that, the ring solid forging that the described cover (2) that rolls is cut into by numerical control plasma cutting machine forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520825828.0U CN205136368U (en) | 2015-10-25 | 2015-10-25 | High strength quenching and tempering resistant grinding shaft hold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520825828.0U CN205136368U (en) | 2015-10-25 | 2015-10-25 | High strength quenching and tempering resistant grinding shaft hold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136368U true CN205136368U (en) | 2016-04-06 |
Family
ID=55622166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520825828.0U Expired - Fee Related CN205136368U (en) | 2015-10-25 | 2015-10-25 | High strength quenching and tempering resistant grinding shaft hold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136368U (en) |
-
2015
- 2015-10-25 CN CN201520825828.0U patent/CN205136368U/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: 20160406 Termination date: 20181025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |