CN212775184U - Low-friction ball type slewing bearing retainer - Google Patents
Low-friction ball type slewing bearing retainer Download PDFInfo
- Publication number
- CN212775184U CN212775184U CN202021149317.9U CN202021149317U CN212775184U CN 212775184 U CN212775184 U CN 212775184U CN 202021149317 U CN202021149317 U CN 202021149317U CN 212775184 U CN212775184 U CN 212775184U
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- retainer
- slewing bearing
- arcs
- friction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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Abstract
The utility model discloses a low-friction ball type slewing bearing retainer, wherein 4 isolating arcs (3) used for isolating steel balls are arranged in a pocket hole (2); the retainer body (1) is a circular ring-shaped frame body; the pocket (2) is arranged on the retainer body (1); two rabbets (4) used for fixing the retainer on the fixed ring of the slewing bearing are arranged on the upper end surface and the lower end surface of the retainer. 4 isolation arcs (3) in the pocket (2) are minor arcs, arc tops of the minor arcs face the circle center of the pocket (2), and end points of the minor arcs are not connected with each other. The utility model discloses a low friction ball formula slewing bearing holder, through adding the isolation arc in the pocket hole, make the steel ball contact for the convex surface to the convex surface when contacting with the holder, reduced the friction between the two; the retainer is fixed on the fixed ring of the slewing bearing through the spigot, so that friction between the retainer and the inner ring and the outer ring is reduced, and the service life of the slewing bearing is prolonged.
Description
Technical Field
The utility model relates to a slewing bearing accessory field specifically is a low friction ball formula slewing bearing holder.
Background
Cages, also called cages, are bearing parts for spacing rolling elements apart. At present, all cages for the ball type slewing bearing are circular pockets and move along with the slewing bearing. The diameter of the circular pocket is generally larger than that of the steel ball, theoretically, the steel ball and the retainer are in point contact, but in actual work, the circular pocket is a concave surface, an excircle of the steel ball is a convex surface, and the concave-convex matching condition is easy to cause surface contact, so that large friction is generated between the steel ball and the retainer. Meanwhile, due to the existence of the gap, when bearing external load, particularly overturning moment, the inner ring and the outer ring of the ball type slewing bearing can generate relative displacement, and when the retainer generates displacement, the retainer is easy to rub the inner ring and the outer ring of the slewing bearing, so that the frictional resistance of the slewing bearing is increased, meanwhile, the retainer is abraded, and the service life of the slewing bearing is shortened.
Disclosure of Invention
The utility model aims at providing a low friction ball formula slewing bearing holder can reduce its and steel ball, the friction between the inner and outer lane, extension slewing bearing's life.
The utility model adopts the technical proposal that: a low-friction ball type slewing bearing retainer comprises a retainer body and pockets, and is characterized in that 4 isolating arcs used for isolating steel balls are arranged in the pockets;
the retainer body is a circular ring-shaped frame body; the pocket is formed on the retainer body; and the upper end surface and the lower end surface of the retainer are provided with two rabbets for fixing the retainer on the slewing bearing fixed ring.
Further, the retainer body is formed by stamping a stamping steel plate.
Furthermore, 4 isolation arcs in the pocket are minor arcs, arc tops of the isolation arcs face the circle center of the pocket, and end points of the isolation arcs are not connected with each other.
The utility model discloses a low friction ball formula slewing bearing holder, through adding the isolation arc in the pocket hole, make the steel ball contact for the convex surface to the convex surface when contacting with the holder, reduced the friction between the two; the retainer is fixed on the fixed ring of the slewing bearing through the spigot, so that friction between the retainer and the inner ring and the outer ring is reduced, and the service life of the slewing bearing is prolonged.
Drawings
FIG. 1 is a schematic view of the structure of the retainer of the present invention;
FIG. 2 is a schematic structural view of pockets on the cage of the present invention;
in the figure, 1 is a retainer body, 2 is a pocket, 3 is an isolating arc, and 4 is a spigot.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a low-friction ball type slewing bearing cage comprises a cage body 1 and a pocket 2, and is characterized in that 4 isolating arcs 3 for isolating steel balls are arranged in the pocket 2;
the retainer body 1 is a circular ring-shaped frame body; the pocket 2 is arranged on the retainer body 1; two rabbets 4 used for fixing the retainer on the fixed ring of the slewing bearing are arranged on the upper end surface and the lower end surface of the retainer. The retainer body 1 is formed by stamping a stamping steel plate. 4 isolation arcs 3 in the pocket 2 are minor arcs, arc tops of the minor arcs face the circle center of the pocket 2, and end points of the minor arcs are not connected with each other.
When the slewing bearing performs slewing motion, the steel ball only has point contact with the retainer, and the spigot 4 is tightly matched with the step of the slewing bearing, so that the friction between the retainer and the outer ring or the inner ring of the slewing bearing is avoided, the frictional resistance during the operation of the slewing bearing is reduced, and the service lives of the retainer and the slewing bearing are prolonged.
Claims (3)
1. A low-friction ball type slewing bearing cage comprises a cage body (1) and a pocket (2), and is characterized in that 4 isolating arcs (3) for isolating steel balls are arranged in the pocket (2);
the retainer body (1) is a circular ring-shaped frame body; the pocket (2) is arranged on the retainer body (1); two rabbets (4) used for fixing the retainer on the fixed ring of the slewing bearing are arranged on the upper end surface and the lower end surface of the retainer.
2. A low friction ball-type slewing bearing cage according to claim 1, characterized in that the cage body (1) is stamped from stamped steel plate.
3. A low friction ball slewing bearing cage according to claim 1 or 2, wherein the 4 isolating arcs (3) in the pockets (2) are minor arcs with the arc tips facing the centre of the pockets (2) and the end points are not connected to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021149317.9U CN212775184U (en) | 2020-06-19 | 2020-06-19 | Low-friction ball type slewing bearing retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021149317.9U CN212775184U (en) | 2020-06-19 | 2020-06-19 | Low-friction ball type slewing bearing retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212775184U true CN212775184U (en) | 2021-03-23 |
Family
ID=75074416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021149317.9U Active CN212775184U (en) | 2020-06-19 | 2020-06-19 | Low-friction ball type slewing bearing retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212775184U (en) |
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2020
- 2020-06-19 CN CN202021149317.9U patent/CN212775184U/en active Active
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