CN210290494U - Retainer structure capable of improving dynamic lubrication condition of bearing - Google Patents
Retainer structure capable of improving dynamic lubrication condition of bearing Download PDFInfo
- Publication number
- CN210290494U CN210290494U CN201921297927.0U CN201921297927U CN210290494U CN 210290494 U CN210290494 U CN 210290494U CN 201921297927 U CN201921297927 U CN 201921297927U CN 210290494 U CN210290494 U CN 210290494U
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- Prior art keywords
- bearing
- slope
- retainer
- ball
- dynamic lubrication
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- 238000005461 lubrication Methods 0.000 title claims abstract description 14
- 239000010687 lubricating oil Substances 0.000 abstract description 13
- 229920006351 engineering plastic Polymers 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000004519 grease Substances 0.000 abstract description 3
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 210000002421 cell wall Anatomy 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a can improve holder structure of bearing dynamic lubrication condition belongs to bearing holder technical field. The ball bearing comprises a retainer and a plurality of ball grooves arranged on the retainer, wherein a slope is arranged on the upper edge of the inner side of each ball groove, and the slope surface of the slope faces the inner side of the retainer. The width of the slope is one fourth of the width of the retainer. The included angle between the slope surface of the slope and the radial end surface of the outer side of the retainer is 15 degrees. The utility model provides an engineering plastics holder because of the problem that the bearing vibration value that causes is high lubricated badly, improve and strengthened the lubricated effect of bearing, make bearing moving more steady, the temperature rise of the bearing of effectual reduction because the improvement of the inside lubricating oil circulation of bearing, reduced the use amount of lubricating grease.
Description
Technical Field
The utility model relates to a bearing holder technical field, concretely relates to can improve bearing dynamic lubrication condition's holder structure.
Background
The engineering plastic (PA66) retainer has good thermoplasticity, easy processing and forming, excellent mechanical property, high tensile strength, good toughness and repeated impact vibration resistance; the wear resistance is good, the friction coefficient is low, and the self-lubricating property is excellent; oil resistance, weak base resistance and the like, and most of the bearings adopt engineering plastics (PA66) as raw materials of the retainer at present.
However, since the engineering plastic (PA66) is injection molded by heating plastic particles into liquid (the temperature reaches 180 ℃), the dimension of the engineering plastic shrinks by about 1% when the engineering plastic is cooled after hot injection molding, and although the shrinkage rate during cooling is considered during design, the instability of the dimension of the retainer is increased due to the severe temperature change during cooling, so that the finished retainer often cannot meet the perfect technical requirements during design. Especially, the shrinkage of the cage pocket reduces the curvature radius of the cage pocket, so that the originally small curvature difference between the cage pocket and the steel ball becomes smaller and even smaller than the curvature radius of the steel ball. The contact area of the cage pocket and the steel ball is increased, so that no storage space exists for lubricating oil (the guide surface of the cage is completely attached to the steel ball during rotation), little or no lubricating oil exists between the cage pocket and the steel ball during rotation of the bearing, the friction force between the steel ball and the cage is increased, the cage is unstable during rotation of the bearing, and the intermediate frequency vibration value is very high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can improve bearing dynamic lubrication condition's holder structure to solve at least one technical problem in the above-mentioned background art.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a pair of can improve holder structure of bearing dynamic lubrication condition, a plurality of ball grooves that set up on holder and the holder, at each the last edge on ball inslot side all is equipped with a slope, the domatic orientation on slope the inboard of holder. The slope plays a drainage role in lubricating oil, the lubricating oil adhered to the steel ball generates a dynamic pressure buoyancy on the retainer under the amplification effect of the drainage slope when the bearing rotates at a high speed, a layer of film formed by the lubricating oil is formed between the retainer and the steel ball, the retainer is separated from the steel ball to eliminate friction, and the effect is particularly obvious when the bearing rotates at a high speed.
Preferably, the width of the slope is one fourth of the width of the retainer.
Preferably, the included angle between the slope surface of the slope and the radial end surface of the outer side of the retainer is 15 degrees.
The utility model discloses beneficial effect: the problem of the engineering plastics holder high because of lubricated poor bearing vibration value that causes is solved, improved and strengthened the lubricated effect of bearing, make the bearing operation more steady, the effectual temperature rise of reducing bearing, because the improvement of the inside lubricating oil circulation performance of bearing, can reach the shock attenuation effect with less lubricating oil, reduced the use amount of lubricating grease.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural diagram of a ball groove of a cage structure capable of improving dynamic lubrication conditions of a bearing according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of a ball groove of a cage structure capable of improving dynamic lubrication conditions of a bearing according to an embodiment of the present invention.
Fig. 3 is a schematic view showing a state in which balls of a conventional bearing move in a ball groove of a cage structure.
Fig. 4 is a schematic diagram illustrating a movement state of a ball in a ball groove of a cage structure having a slope according to an embodiment of the present invention.
Wherein: 1-a cage; 2-ball grooves; 3-slope; 4-slope surface; 5-radial end surface of outer side of the retainer; 6-rolling balls; 7-gap.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by way of the drawings are exemplary only for the purpose of explaining the present invention and should not be construed as limiting the present invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
To facilitate understanding of the present invention, the present invention will be further explained with reference to specific embodiments in conjunction with the accompanying drawings, and the specific embodiments do not constitute limitations of the embodiments of the present invention.
It will be appreciated by those skilled in the art that the drawings are merely schematic representations of embodiments and that elements shown in the drawings are not necessarily required to practice the invention.
Examples
As shown in fig. 1, an embodiment of the present invention provides a cage structure capable of improving dynamic lubrication conditions of a bearing, including a plurality of ball grooves 2 disposed on a cage 1 and the cage 1, wherein a slope 3 is disposed on an upper edge of an inner side of each ball groove 2, and a slope surface 4 of the slope 3 faces an inner side of the cage 1.
As shown in fig. 2, the width D of the ramp 3 is one fourth of the width D of the cage. The included angle a between the slope surface 4 of the slope 3 and the outer radial end surface 5 of the retainer 1 is 15 degrees.
As shown in fig. 3, when the ball 6 of the conventional bearing moves in the ball groove of the cage structure, when the cage rotates, the groove wall of the ball groove of the cage is in close contact with the ball, the gap 7 between the groove wall of the ball groove and the ball is small, and external lubricating oil hardly enters the gap between the groove wall of the ball groove and the ball.
As shown in fig. 4, the embodiment of the utility model provides a cage structure, the slope has been introduced along the groove edge in ball groove, has formed lubricating oil drainage chamfer, under the drive of ball rotation, in external lubricating oil attached to on the ball can enter into gap 7 along this chamfer, forms lubricating oil film between the cell wall in ball 6 and ball groove, has avoided the aggravation of the friction between ball and the ball cell wall, has prolonged the life of bearing.
To sum up, the embodiment of the utility model provides an can improve holder structure of bearing dynamic lubrication condition, solved the problem that the bearing vibration value is high that the engineering plastics holder caused because of lubricated badly, improve and strengthened the lubrication effect of bearing, make bearing moving more steady, the temperature rise of the bearing of effectual reduction has reduced the use amount of lubricating grease because the improvement of the inside lubricating oil circulation of bearing.
Those of ordinary skill in the art will understand that: the components in the device in the embodiments of the present invention may be distributed in the device in the embodiments according to the description of the embodiments, and may be correspondingly changed in one or more devices different from the embodiments. The components of the above embodiments may be combined into one component, or may be further divided into a plurality of sub-components.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. A retainer structure capable of improving dynamic lubrication conditions of a bearing is characterized in that: the ball bearing comprises a retainer (1) and a plurality of ball grooves (2) arranged on the retainer (1), wherein each ball groove (2) is provided with a slope (3) on the inner side of the upper edge, and the slope surface (4) of the slope (3) faces the inner side of the retainer (1).
2. The cage structure for improving the dynamic lubrication condition of a bearing according to claim 1, wherein: the width of the slope (3) is one fourth of the width of the retainer.
3. The cage structure for improving the dynamic lubrication condition of a bearing according to claim 2, wherein: the included angle between the slope surface (4) of the slope (3) and the outer radial end surface (5) of the retainer (1) is 15 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921297927.0U CN210290494U (en) | 2019-08-12 | 2019-08-12 | Retainer structure capable of improving dynamic lubrication condition of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921297927.0U CN210290494U (en) | 2019-08-12 | 2019-08-12 | Retainer structure capable of improving dynamic lubrication condition of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290494U true CN210290494U (en) | 2020-04-10 |
Family
ID=70062304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921297927.0U Active CN210290494U (en) | 2019-08-12 | 2019-08-12 | Retainer structure capable of improving dynamic lubrication condition of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290494U (en) |
-
2019
- 2019-08-12 CN CN201921297927.0U patent/CN210290494U/en active Active
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