CN218644664U - Three-point contact cylindrical roller bearing retainer - Google Patents
Three-point contact cylindrical roller bearing retainer Download PDFInfo
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- CN218644664U CN218644664U CN202222971475.8U CN202222971475U CN218644664U CN 218644664 U CN218644664 U CN 218644664U CN 202222971475 U CN202222971475 U CN 202222971475U CN 218644664 U CN218644664 U CN 218644664U
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- cylindrical roller
- ring body
- roller bearing
- bearing retainer
- point contact
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Abstract
The application discloses a three-point contact cylindrical roller bearing retainer, which comprises a ring body, wherein pockets for containing cylindrical rollers are formed in the side surface of the ring body along the circumferential direction, and the pockets are separated by side beams; the two sides of the side beams along the circumferential direction of the ring body are provided with bulges, one side of the side beams is provided with a middle bulge positioned in the middle of the side beam, the other side of the side beams is provided with two side bulges positioned at the two ends of the side beam, and three bulges are arranged on the side walls of the two side beams of each pocket. By the contact of the curved surface lateral wall of three arch and cylindrical roller, can reach stable location, pin cylindrical roller, can reduce curb girder and cylindrical roller's area of contact again, reduce the friction of curb girder and cylindrical roller, reduce the resistance for cylindrical roller can have higher rotational speed, and greatly reduce noise and the heat that cylindrical roller produced at the downthehole internal rotation of pocket, make cylindrical roller can low generate heat, the operation of low noise, prolong high rotational speed cylindrical roller's life.
Description
Technical Field
The utility model relates to a high rotational speed cylindrical roller bearing keeps ware technical field, concretely relates to three point contact cylindrical roller bearing keeps ware.
Background
The window holes for assembling and isolating the cylindrical rollers of the conventional high-rotation-speed cylindrical roller bearing retainer are generally square, side beams are formed between the adjacent window holes, the contact area between the side surfaces of the side beams facing the window holes and the side surfaces of the cylindrical rollers is large, large sliding friction and abrasion exist, large heat and noise can be generated, the storage space of lubricating grease is small, the lubricating grease cannot be sufficiently circulated, the lubricating grease and the heat radiation performance are influenced, and the service life of the bearing retainer is short.
Therefore, a high-speed, low-noise cylindrical roller bearing retainer having a small contact area and a large oil storage space is urgently required.
SUMMERY OF THE UTILITY MODEL
To solve the technical problems set forth in the above background, an object of the present application is to provide a three-point contact cylindrical roller bearing retainer.
In order to achieve the purpose, the technical scheme is as follows:
a three-point contact cylindrical roller bearing retainer comprises a ring body, wherein pockets for containing cylindrical rollers are formed in the side surface of the ring body along the circumferential direction, and the pockets are separated by side beams; the lateral beams are provided with bulges at two sides along the circumferential direction of the ring body, one side of the lateral beams is provided with a middle bulge positioned in the middle of the lateral beam, the other side of the lateral beams is provided with two side bulges positioned at two ends of the lateral beam, so that the side walls of the two lateral beams of each pocket are provided with three bulges.
From this, the lateral wall of two curb girders of every pocket hole all is equipped with three arch in this application, curved surface lateral wall contact by three arch and cylindrical roller, can reach stable location, pin cylindrical roller, can reduce curb girder and cylindrical roller's area of contact again, reduce curb girder and cylindrical roller's friction, reduce the resistance, make cylindrical roller can have higher rotational speed, and greatly reduce noise and the heat that cylindrical roller produced at the downthehole rotation of pocket, make cylindrical roller can low generate heat, the operation of low noise, prolong high rotational speed cylindrical roller's life, and between arch and the arch, can form the space between the terminal surface of arch and ring body, can increase lubricated grease's storage and circulation space, further improve lubrication and heat dispersion.
And asymmetric protruding setting can also eliminate bearing resonance on the lateral wall of two curb girders of pocket, reduces because the bearing trouble that resonance arouses.
As an alternative realization of the three-point contact cylindrical roller bearing retainer, the intermediate projection is a trapezoidal projection. The trapezoidal bulge has a slope structure, so that the structural strength of the middle bulge can be enhanced, the load capacity of the middle bulge is improved, and the cylindrical roller can be more stably positioned in the pocket.
As an alternative implementation of the three-point contact cylindrical roller bearing retainer, a side of the side projection close to the end face of the ring body is parallel to the end face of the ring body; one side of the side protrusion, which is far away from the end face of the ring body, is provided with a protrusion inclined plane, and each protrusion inclined plane is inclined towards one end, which is close to the side protrusion on the ring body and is close to the side protrusion. With this, one side that the side arch is close to the terminal surface of ring body is parallel with the terminal surface of ring body for the side arch can be more close to the terminal surface of ring body, can form more firm triangle with middle protruding, and distance is great between two side archs, can provide more stable support for cylindrical roller. The side that the terminal surface of ring body was kept away from to the side arch is protruding inclined plane, and every protruding inclined plane inclines to the one end that is close to the side arch that is close to the ring body on apart from the place nearer, improves the bellied structural strength of side, and then improves the load that the side arch can bear for the side arch can stabilize and support cylindrical roller and carry out stable high-speed operation.
As an alternative implementation manner of the three-point contact cylindrical roller bearing retainer, one surface of the protrusion facing the inner side surface or the outer side surface of the ring body is a slope pressing inclined surface, and the slope pressing inclined surface inclines along a direction in which the inside of the pocket is flared to the outside. Therefore, the curved surface side face of the cylindrical roller is only in contact with the slope pressing inclined plane on the side beam, the contact area between the side beam and the cylindrical roller is further reduced, friction between the side beam and the cylindrical roller is reduced, the cylindrical roller can have a high rotating speed, noise and heat generated by rotation of the cylindrical roller in the pocket are greatly reduced, the cylindrical roller can run with low heat and low noise, and the service life of the high-rotating-speed cylindrical roller is prolonged.
As an alternative implementation of the three-point contact cylindrical roller bearing retainer, the pressure slope is provided with an oil groove penetrating in the radial direction of the ring body. Therefore, the circulation space of the lubricating grease inside and outside the bearing retainer, particularly the circulation of the lubricating grease between the bulges and the cylindrical rollers is enlarged, so that the bearing retainer can perform good lubrication and heat dissipation for the high rotating speed of the cylindrical rollers.
As an alternative realization of the three-point contact cylindrical roller bearing cage, the oil-passing groove is recessed in a direction away from the pocket. Thereby, the depth of the oil passing groove is further increased.
As an alternative implementation of the three-point contact cylindrical roller bearing retainer, the ramp slope is provided with an oil reservoir arranged in the axial direction of the ring body. With this, increase the storage space of lubricating grease, especially the storage of the lubricating grease between arch and the cylindrical roller, when the cylindrical roller rotates, can drive lubricating grease and store in the oil storage tank to the curved surface lateral wall of lubricating grease in the oil storage tank can lubricated cylindrical roller when the cylindrical roller rotates improves lubricating property, reduces the resistance when the high-speed operation of cylindrical roller.
As an alternative realization of the three-point contact cylindrical roller bearing cage, the oil reservoir is recessed in a direction away from the pocket. Thereby, the depth of the oil storage tank is further increased.
As an alternative implementation of the three-point contact cylindrical roller bearing retainer, the inner side of the ring body is provided with a limiting projection projecting in the radial direction. Therefore, when the product of the application is used in a double-row bearing, the limiting protrusion can be matched with the bearing inner sleeve, so that the retainer is blocked from sliding downwards, two axially parallel retainers are separated, and large friction is prevented from being generated between the two retainers.
As an alternative implementation of the three-point contact cylindrical roller bearing retainer, the limit protrusions are arc-shaped limit protrusions.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
FIG. 1 is a perspective view of one embodiment of a three-point contact cylindrical roller bearing retainer;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;
fig. 4 is an enlarged schematic structural view of the structure at C in fig. 1.
Description of reference numerals:
1. a ring body; 11. a pocket hole; 12. a side beam; 13. a protrusion; 131. a middle bulge; 132. a side projection; 14. pressing a slope; 15. and a limiting bulge.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings, wherein the same reference numerals in the drawings denote the same components or similar components.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Referring to fig. 1-4, the present application provides a three-point contact cylindrical roller bearing retainer, which includes a ring body 1, pockets 11 for accommodating cylindrical rollers are formed in a side surface of the ring body 1 along a circumferential direction, and the pockets 11 are separated by side beams 12; the side beams 12 are provided with protrusions 13 at both sides in the circumferential direction of the ring body 1, wherein one side is provided with a middle protrusion 131 positioned in the middle of the side beam 12, and the other side is provided with two side protrusions 132 positioned at both ends of the side beam 12, so that the side walls of the two side beams 12 of each pocket 11 are provided with three protrusions 13.
From this, the lateral wall of two curb girders 12 of every pocket 11 all is equipped with three arch 13 in this application, by the contact of three arch 13 and cylindrical roller's curved surface lateral wall, can reach stable location, pin cylindrical roller, can reduce curb girder 12 and cylindrical roller's area of contact again, reduce curb girder 12 and cylindrical roller's friction, reduce the resistance, make cylindrical roller can have higher rotational speed, and greatly reduce noise and the heat that cylindrical roller produced at the 11 internal rotations of pocket, make cylindrical roller can low generate heat, the operation of low noise, prolong high rotational speed cylindrical roller's life, and between arch 13 and the arch 13, can form the space between the terminal surface of arch 13 and ring body 1, can increase the storage and the circulation space of lubricated grease, further improve lubrication and heat dispersion.
In addition, the asymmetric protrusions 13 on the side walls of the two side members 12 of the pocket 11 can eliminate bearing resonance and reduce bearing failure caused by the resonance.
In a particular embodiment, the projections 13 are integrally formed by extrusion.
In a specific embodiment of a three-point contact cylindrical roller bearing retainer, the intermediate protrusions 131 are trapezoidal protrusions 13. The trapezoidal protrusions 13 have a slope structure, so that the structural strength of the middle protrusion 131 can be enhanced, and the load capacity of the middle protrusion 131 can be improved, so that the cylindrical roller can be more stably seated in the pocket 11. In one embodiment, the shape of the middle protrusion 131 is an isosceles trapezoid, so that the middle protrusion 131 can have a symmetrical structure to provide a uniform supporting force for the cylindrical roller, and support the cylindrical roller for stable high-speed operation.
In a specific embodiment of the three-point contact cylindrical roller bearing retainer, the side of the side projection 132 close to the end face of the ring body 1 is parallel to the end face of the ring body 1; the side of the side protrusion 132 away from the end surface of the ring body 1 is a protrusion 13 inclined plane, and each protrusion 13 inclined plane inclines towards the end close to the side protrusion 132 on the ring body 1. With this, one side that side arch 132 is close to the terminal surface of ring body 1 is parallel with the terminal surface of ring body 1 for side arch 132 can be more close to the terminal surface of ring body 1, can form more firm triangle with middle arch 131, and the distance is great between two side archs 132, can provide more stable support for cylindrical roller. One side that side arch 132 kept away from the terminal surface of ring body 1 is protruding 13 inclined planes, and every protruding 13 inclined planes inclines to the one end that is close to side arch 132 that is close to on being close to ring body 1 apart from the place, improves the structural strength of side arch 132, and then improves the load that side arch 132 can bear for side arch 132 can stabilize and support cylindrical roller and carry out stable high-speed operation.
In a specific embodiment of the three-point contact cylindrical roller bearing retainer, a surface of the protrusion 13 facing the inner or outer side surface of the ring body 1 is a pressure slope surface 14, and the pressure slope surface 14 is inclined in a direction flaring from the inside to the outside of the pocket 11. Therefore, the curved surface side face of the cylindrical roller is only contacted with the slope pressing inclined surface 14 on the side beam 12, the contact area between the side beam 12 and the cylindrical roller is further reduced, the friction between the side beam 12 and the cylindrical roller is reduced, the cylindrical roller can have higher rotating speed, the noise and heat generated by the rotation of the cylindrical roller in the pocket 11 are greatly reduced, the cylindrical roller can operate with low heat and low noise, and the service life of the high-rotating-speed cylindrical roller is prolonged.
In one embodiment, the protrusions 13 and the ramp surfaces 14 are integrally formed by extrusion.
In a specific embodiment of a three-point contact cylindrical roller bearing retainer, the ramp surface 14 is provided with oil-passing grooves running through the ring body 1 in the radial direction. Thereby, the circulation space of the lubricating grease inside and outside the bearing holder, especially the circulation of the lubricating grease between the protrusions 13 and the cylindrical rollers, is increased, so that the bearing holder can perform good lubrication and heat dissipation for the high rotation speed of the cylindrical rollers.
In an embodiment of a three-point contact cylindrical roller bearing retainer, the oil passing groove is concave in a direction away from the pocket 11. Thereby, the depth of the oil passing groove is further increased.
In a specific embodiment of a three-point contact cylindrical roller bearing retainer, the ramp surface 14 is provided with an oil reservoir arranged in the axial direction of the ring body 1. With this, increase the storage space of lubricating grease, especially the storage of the lubricating grease between arch 13 and the cylindrical roller, when cylindrical roller rotates, can drive lubricating grease and store in the oil storage tank to the curved surface lateral wall of lubricating grease in the oil storage tank can lubricated cylindrical roller when cylindrical roller rotates improves lubricating property, reduces the resistance when cylindrical roller's high-speed operation.
In an embodiment of the three-point contact cylindrical roller bearing retainer, the oil reservoir is recessed in a direction away from the pocket 11. Thereby, the depth of the oil storage tank is further increased.
In a particular embodiment of a three-point contact cylindrical roller bearing cage, the inner side of the ring body 1 is provided with a stop lug 15 which projects in the radial direction 13. Therefore, when the product of the application is used in a double-row bearing, the limiting bulge 15 can be matched with the bearing inner sleeve so as to block the retainer from sliding downwards, and the two axially parallel retainers are separated so as to prevent large friction between the two retainers.
In a specific embodiment of a three-point contact cylindrical roller bearing retainer, the limit projections 15 are arc-shaped limit projections 15.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the system embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and reference may be made to the partial description of the method embodiment for relevant points.
The above are merely examples of the present invention, and are not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A three point contact cylindrical roller bearing retainer comprising:
the side surface of the ring body is provided with pockets for accommodating the cylindrical rollers along the circumferential direction, and the pockets are separated by side beams; the lateral beams are provided with bulges at two sides along the circumferential direction of the ring body, one side of the lateral beams is provided with a middle bulge positioned in the middle of the lateral beam, the other side of the lateral beams is provided with two side bulges positioned at two ends of the lateral beam, and the side walls of the two lateral beams of each pocket are provided with three bulges.
2. A three point contact cylindrical roller bearing retainer according to claim 1, characterized in that the intermediate projection is a trapezoidal projection.
3. A three-point-contact cylindrical roller bearing holder as claimed in claim 1, characterized in that a side of the side projection close to the end face of the ring body is parallel to the end face of the ring body; one side of the side protrusion, which is far away from the end face of the ring body, is provided with a protrusion inclined plane, and each protrusion inclined plane is inclined towards one end, which is close to the side protrusion on the ring body and is close to the side protrusion.
4. The three-point contact cylindrical roller bearing retainer of claim 1, wherein a surface of the protrusion facing the inner or outer side surface of the ring body is a pressure slope inclined in a direction in which the pocket is internally flared toward the outside.
5. A three-point contact cylindrical roller bearing retainer according to claim 4, characterized in that the ramp slope is provided with oil passing grooves provided through the ring body in a radial direction.
6. A three point contact cylindrical roller bearing retainer according to claim 5, wherein the oil gallery is recessed away from the pocket.
7. A three-point-contact cylindrical roller bearing retainer according to claim 4, wherein said pressure slope surface is provided with an oil reservoir provided along an axial direction of said ring body.
8. A three point contact cylindrical roller bearing retainer according to claim 7, wherein said oil reservoir is concave in a direction away from said pocket.
9. A three-point contact cylindrical roller bearing retainer according to claim 1, characterized in that the inner side of the ring body is provided with a limit projection projecting in the radial direction.
10. A three-point contact cylindrical roller bearing retainer according to claim 9, wherein the limit projection is an arc-shaped limit projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222971475.8U CN218644664U (en) | 2022-11-08 | 2022-11-08 | Three-point contact cylindrical roller bearing retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222971475.8U CN218644664U (en) | 2022-11-08 | 2022-11-08 | Three-point contact cylindrical roller bearing retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218644664U true CN218644664U (en) | 2023-03-17 |
Family
ID=85497306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222971475.8U Active CN218644664U (en) | 2022-11-08 | 2022-11-08 | Three-point contact cylindrical roller bearing retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218644664U (en) |
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2022
- 2022-11-08 CN CN202222971475.8U patent/CN218644664U/en active Active
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