CN202659731U - Double-row self-aligning roller bearing of two-body retainers with grooves on back surfaces - Google Patents
Double-row self-aligning roller bearing of two-body retainers with grooves on back surfaces Download PDFInfo
- Publication number
- CN202659731U CN202659731U CN 201220325358 CN201220325358U CN202659731U CN 202659731 U CN202659731 U CN 202659731U CN 201220325358 CN201220325358 CN 201220325358 CN 201220325358 U CN201220325358 U CN 201220325358U CN 202659731 U CN202659731 U CN 202659731U
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- CN
- China
- Prior art keywords
- retainers
- double
- roller bearing
- aligning roller
- grooves
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Abstract
Disclosed is a double-row self-aligning roller bearing of two-body retainers with grooves on the back surfaces. The double-row self-aligning roller bearing comprises an outer ring, an inner ring, the two same retainers and a plurality of rolling members. The two retainers are installed between the outer ring and the inner ring, the plurality of rolling members are installed in pockets of the two retainers respectively, the same grooves which can be arc grooves are opened on the back surfaces of the two retainers, and an oval groove is formed between the two retainers. The grooves are opened on the back surfaces of the two-body retainers, so that the contact area of the two-body retainers is reduced, oil storage space on the back surfaces of the two-body retainers is correspondingly increased, the problem that the two-body retainers are heated up due to friction when the bearing rotates at high speeds under large loads is solved, and service life of the bearing is prolonged.
Description
Technical field
The utility model belongs to field of bearings, and particularly a kind of double-row self-aligning roller bearing of two body retainer back side troughs of belt mainly is suitable for diameter greater than the double-row self-aligning roller bearing of 400mm.
Background technique
Present large-scale double-row self-aligning roller bearing extensively model is used for mine mechanism, wherein a part of mine mechanism rotating ratio is higher, load also larger, during the large load operation of the high rotating speed of the double-row self-aligning roller bearing of two body retainers, easily produce moment unbalance loading phenomenon, the rotating speed of two row rollers is different, and two back sides of two body retainers produce the phase mutual friction, because the bad bearing that causes of lubrication and cooling heats up, Bearing Temperature can cause and reduce the working life of bearing or bag axle phenomenon.This project organization as shown in Figure 3.
The model utility content
The purpose of this utility model provides a kind of double-row self-aligning roller bearing of two body retainer back side troughs of belt
,Can solve two back sides of two body retainers and produce the phase mutual friction, because the bad bearing that causes of lubrication and cooling heats up, make the shortcoming of bearing bag axle, at the back side of two body retainers fluting, reduce the contact friction area when two body retainers are stressed to rotate, improve the greasy property of bearing, improve bearing working life.
The technological scheme that adopts is:
A kind of double-row self-aligning roller bearing of two body retainer back side troughs of belt comprises outer ring, inner ring, identical two retainers and a plurality of rolling element.
Two retainers are installed between outer ring, the inner ring, and install a plurality of rolling elements respectively in the pocket hole of two retainers.
Its technological points is:
The back side at two retainers offers respectively identical groove.
Described groove can be arc groove, forms an elliptical slot between two retainers.
Described groove also can be dovetail groove, forms an oil storage space between two retainers.
The back side fluting of two body retainers, two body retainer area of contact are reduced, increased accordingly the oil storage space at the two body retainer back sides, two body retainer temperature arrising caused by friction problems when having reduced so greatly the high rotational speed of the large load of bearing, the working life of having improved bearing.
Its advantage is:
The utility model has overcome large-scale double-row self-aligning roller bearing and has been hit in use equipment that shock load is large and rotating ratio is higher and causes, two back sides of two body retainers produce the phase mutual friction, because the bad bearing that causes of lubrication and cooling heats up, and makes the shortcoming of bearing bag axle.Contact friction area when slotting to reduce the stressed rotation of two body retainers at the back side of two body retainers, can reduce to greatest extent two body retainer area of contact, increase the oil storage space of retainer both ends of the surface, improved the greasy property of bearing, improved bearing working life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is retainer structural representation of the present utility model.
Fig. 3 is the structural representation of existing double-row self-aligning roller bearing.
Embodiment
A kind of double-row self-aligning roller bearing of two body retainer back side troughs of belt comprises outer ring 1, inner ring 2, identical two retainers 3 and a plurality of rolling element 4.
Two retainers 3 are installed between outer ring 1, the inner ring 2, and install a plurality of rolling elements 4 respectively in the pocket hole of two retainers 3.
The back side at two retainers 3 offers respectively identical groove 5.
Described groove 5 is arc groove, forms an elliptical slot between two retainers 3.
Two body retainer area of contact are reduced, see Fig. 1, shown in Figure 2, form an elliptical slot in the middle of two retainers, make like this retainer that the space of an oil storage has been arranged, improved the greasy property of bearing.
Specifically be calculated as follows: KC=(DC-dC) *
Claims (2)
1. the double-row self-aligning roller bearing of a body retainer back side trough of belt comprises outer ring (1), inner ring (2), identical two retainers (3) and a plurality of rolling element (4);
Two retainers (3) are installed between outer ring (1), the inner ring (2), and install a plurality of rolling elements (4) respectively in the pocket hole of two retainers (3); It is characterized in that:
Offer respectively identical groove (5) at the back side of two retainers (3).
2. the double-row self-aligning roller bearing of a kind of two body retainer back side troughs of belt according to claim 1, it is characterized in that: described groove (5) is arc groove, forms an elliptical slot between two retainers (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220325358 CN202659731U (en) | 2012-07-06 | 2012-07-06 | Double-row self-aligning roller bearing of two-body retainers with grooves on back surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220325358 CN202659731U (en) | 2012-07-06 | 2012-07-06 | Double-row self-aligning roller bearing of two-body retainers with grooves on back surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659731U true CN202659731U (en) | 2013-01-09 |
Family
ID=47454640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220325358 Expired - Fee Related CN202659731U (en) | 2012-07-06 | 2012-07-06 | Double-row self-aligning roller bearing of two-body retainers with grooves on back surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659731U (en) |
-
2012
- 2012-07-06 CN CN 201220325358 patent/CN202659731U/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: 20130109 Termination date: 20150706 |
|
| EXPY | Termination of patent right or utility model |