CN217401449U - Tapered roller bearing applied to low-speed heavy load - Google Patents
Tapered roller bearing applied to low-speed heavy load Download PDFInfo
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- CN217401449U CN217401449U CN202221237866.0U CN202221237866U CN217401449U CN 217401449 U CN217401449 U CN 217401449U CN 202221237866 U CN202221237866 U CN 202221237866U CN 217401449 U CN217401449 U CN 217401449U
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- 238000005096 rolling process Methods 0.000 claims abstract description 243
- 238000003860 storage Methods 0.000 claims abstract description 35
- 230000003746 surface roughness Effects 0.000 claims description 20
- 239000000126 substance Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 43
- 239000010687 lubricating oil Substances 0.000 description 23
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004901 spalling Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The application discloses be applied to heavily loaded tapered roller bearing of low-speed, this tapered roller bearing who is applied to heavily loaded of low-speed includes: the bearing comprises a bearing inner ring, a rolling body, a bearing outer ring and a retainer; the rolling bearing comprises a bearing inner ring, a bearing outer ring, a retainer, a rolling element and a rolling element, wherein the retainer is arranged between the bearing inner ring and the bearing outer ring, and is provided with a rolling groove for accommodating the rolling element; the outer side of the bearing inner ring is provided with an inner ring raceway, the inner ring raceway is provided with an inner ring rolling surface in a logarithmic curve, the inner side of the bearing outer ring is provided with an outer ring raceway, and the outer ring raceway is provided with an outer ring rolling surface in a logarithmic curve; the generatrix of the rolling body is set as a full convex line, and the rolling body is contacted with the inner ring rolling surface and the outer ring rolling surface and is in rolling connection, so that an oil storage space is formed between the two ends of the rolling body and the inner ring rolling surface and the outer ring rolling surface. The tapered roller bearing solves the problems that an enough oil storage space is not reserved in the design of the tapered roller bearing in the related art, and the bearing is easy to wear after actual long-time work, so that the service life is influenced.
Description
Technical Field
The application relates to the technical field of bearings, in particular to a tapered roller bearing applied to low-speed heavy load.
Background
The conventional tapered roller bearing applied to low-speed heavy load mainly comprises an outer ring, an inner ring, a tapered rolling body and a retainer. The outer wall of the inner ring is provided with a plurality of rolling grooves for accommodating the conical rolling bodies, and flanges for supporting the conical rolling bodies are arranged on two sides of each rolling groove.
The structure has the following defects in practical work:
because the rolling groove is a plane rolling groove, the gap between the bus of the tapered roller and the bottom surface of the plane rolling groove is small, the space for containing lubricating oil is small, the amount of the lubricating oil is small, and the bearing is easy to wear after long-time work, so that the bearing fails.
The bottom of the tapered roller is tightly attached to the bottom surface of the rolling groove of the inner ring, and oil storage spaces are not arranged on two sides of the tapered roller, so that the amount of lubricating oil is limited, and the tapered roller is easy to wear after long-time work.
The space between the outer ring bus and the roller bus is small, the space for containing lubricating oil is small, the long-time work is realized, and the abrasion is easy to occur.
In conclusion, in the prior art, the tapered roller bearing is designed without a sufficient oil storage space, so that after the tapered roller bearing actually works for a long time, the bearing is easily abraded, the service life is influenced, and the stress is concentrated under a heavy-load environment.
SUMMERY OF THE UTILITY MODEL
The main object of the application is to provide a be applied to heavy-duty tapered roller bearing of low-speed to solve and be applied to heavy-duty tapered roller bearing of low-speed and do not leave sufficient oil storage space when the design among the prior art, after the actual long-time work, wearing and tearing appear easily in the bearing, influence life, and stress comparatively concentrated problem under the heavy load environment.
In order to achieve the above object, the present application provides a tapered roller bearing applied to a low-speed heavy load, including: the bearing comprises a bearing inner ring, a rolling body, a bearing outer ring and a retainer; wherein the content of the first and second substances,
the retainer is arranged between the bearing inner ring and the bearing outer ring, and a rolling groove for accommodating the rolling body is formed in the retainer;
an inner ring raceway is arranged on the outer side of the bearing inner ring, the inner ring raceway is provided with an inner ring rolling surface in a logarithmic curve, an outer ring raceway is arranged on the inner side of the bearing outer ring, and the outer ring raceway is provided with an outer ring rolling surface in a logarithmic curve;
the bus of the rolling body is set to be a full convex line, and the rolling body is in contact with and in rolling connection with the inner ring rolling surface and the outer ring rolling surface, so that an oil storage space is formed between two ends of the rolling body and the inner ring rolling surface and the outer ring rolling surface.
Furthermore, the inner ring raceway is provided with a large flange part at the large diameter end and a small flange part at the small diameter end; the large flange part and the small flange part are positioned on two sides of the rolling surface of the inner ring;
the inner side of the large flange part is provided with a large arc-shaped surface protruding towards the rolling body, and a first end surface of the rolling body is in contact with the large arc-shaped surface;
the inner side of the small flange part is provided with a small arc-shaped surface protruding towards the rolling body, and a gap is formed between the second end surface of the rolling body and the small arc-shaped surface.
Further, the surface roughness of the rolling body is smaller than that of the rolling surface of the inner ring, and the surface roughness of the rolling surface of the inner ring is smaller than that of the rolling surface of the outer ring;
the difference value between the surface roughness of the rolling body and the surface roughness of the rolling surface of the inner ring is 0.02mm-0.04 mm; the difference between the surface roughness of the rolling surface of the inner ring and the surface roughness of the rolling surface of the outer ring is 0.02mm-0.04 mm.
Furthermore, a first tool retracting part is arranged at the corner part of the inner ring rolling surface intersected with the large flange part, and a second tool retracting part is arranged at the corner part of the inner ring rolling surface intersected with the small flange part.
Further, the inner surfaces of the first tool retracting part and the second tool retracting part are arc surfaces, and the diameter of the first tool retracting part is larger than that of the second tool retracting part.
Further, the contact width of the rolling body and the rolling surface of the inner ring is smaller than the width of the rolling surface of the inner ring;
the contact width of the rolling body and the outer ring rolling surface is smaller than that of the outer ring rolling surface.
Further, a rolling groove is in linear contact with the rolling body, and an oil storage groove is formed in the contact surface, in the rolling groove, in contact with the rolling body in the axial direction of the rolling body.
Furthermore, the inner surface of the oil storage tank is provided with an arc surface and is chamfered at the intersection of the contact surface, and an oil storage gap is formed between the inner surface of the oil storage tank and the rolling body.
Further, the rolling inslot is followed the direction of rotation of rolling element has been seted up and has been led the oil groove, lead the oil groove for leading the groove structure and with the oil storage tank intercommunication.
Further, the oil guide grooves are arranged in a plurality of numbers and are uniformly distributed along the axial direction of the rolling bodies.
Furthermore, the retainer is provided with a heat dissipation groove, and the heat dissipation groove is positioned between the adjacent rolling grooves.
In the embodiment of the application, the bearing inner ring, the rolling body, the bearing outer ring and the retainer are arranged; the retainer is arranged between the bearing inner ring and the bearing outer ring, and a rolling groove for accommodating the rolling body is formed in the retainer; the outer side of the bearing inner ring is provided with an inner ring raceway, the inner ring raceway is provided with an inner ring rolling surface in a logarithmic curve, the inner side of the bearing outer ring is provided with an outer ring raceway, and the outer ring raceway is provided with an outer ring rolling surface in a logarithmic curve; the bus of the rolling body is set as a full convex line, the rolling body is contacted and connected with the inner ring rolling surface and the outer ring rolling surface in a rolling way, so that an oil storage space is formed between the two ends of the rolling body and the inner ring rolling surface and between the two ends of the rolling body, the inner ring rolling surface and the outer ring rolling surface are respectively convex towards the rolling body, when the rolling body with the bus as the full convex line is arranged between the inner ring rolling surface and the outer ring rolling surface, the two ends of the rolling body and the two ends of the inner ring rolling surface and the outer ring rolling surface form a larger oil storage space, thereby realizing that lubricating oil is temporarily stored in the oil storage space at the two ends of the rolling body and can flow to the contact surfaces between the rolling body and the inner ring rolling surface and the outer ring rolling surface from the oil storage space at the two ends along with the rotation of the rolling body, forming a structure capable of continuously supplying oil for the whole bearing, and because the lubricating oil is enough, the technical effect of remarkably reducing the problem of bearing fatigue peeling off can be realized, and further, the problems that an enough oil storage space is not reserved when the tapered roller bearing applied to low speed and heavy load in the related technology is designed, and after the tapered roller bearing works for a long time actually, the bearing is easy to wear, and the service life is influenced are solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic structural diagram according to an embodiment of the present application;
FIG. 2 is a schematic view of the overall structure of a bearing according to an embodiment of the present application;
FIG. 3 is a schematic illustration of a rolling element busbar according to an embodiment of the present application;
the bearing comprises a bearing inner ring 1, an inner ring rolling surface 101, a first tool retracting part 2, a large flange part 3, a retainer 4, a bearing outer ring 5, an outer ring rolling surface 51, a rolling body 6, a second tool retracting part 7, an oil storage space 8 and a small flange part 9.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used.
In this application, the terms "upper", "lower", "inside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "disposed," "provided," "connected," "secured," and the like are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Because the rolling groove is a plane rolling groove, a gap between a bus of the tapered roller and the bottom surface of the plane rolling groove is small, the space for containing lubricating oil is small, the amount of the lubricating oil is small, and the bearing is easy to wear after long-time work, so that the bearing fails. The bottom of the tapered roller is tightly attached to the bottom surface of the rolling groove of the inner ring, and oil storage spaces are not arranged on two sides of the tapered roller, so that the amount of lubricating oil is limited, and the tapered roller is easy to wear after long-time work. The space between the outer ring bus and the roller bus is small, the space for containing lubricating oil is small, the long-time work is realized, and the abrasion is easy to occur.
In order to solve the above problem, as shown in fig. 1 to 2, an embodiment of the present application provides a tapered roller bearing applied to a low-speed heavy load, where the tapered roller bearing applied to a low-speed heavy load includes: the bearing comprises a bearing inner ring 1, a rolling body 6, a bearing outer ring 5 and a retainer 4; wherein the content of the first and second substances,
the retainer 4 is arranged between the bearing inner ring 1 and the bearing outer ring 5, and the retainer 4 is provided with a rolling groove for accommodating the rolling body 6;
the outer side of the bearing inner ring 1 is provided with an inner ring raceway, the inner ring raceway is provided with an inner ring rolling surface 101 in a logarithmic curve, the inner side of the bearing outer ring 5 is provided with an outer ring raceway, and the outer ring raceway is provided with an outer ring rolling surface 51 in a logarithmic curve;
the generatrix of the rolling body 6 is set to be a full convex line, and the rolling body 6 is in contact with and in rolling connection with the inner ring rolling surface 101 and the outer ring rolling surface 51, so that an oil storage space 8 is formed between the two ends of the rolling body 6 and the inner ring rolling surface 101 and the outer ring rolling surface 51.
In the embodiment, the tapered roller bearing applied to low-speed heavy load mainly comprises a bearing inner ring 1, rolling bodies 6, a bearing outer ring 5 and a retainer 4, wherein an inner ring raceway is formed on the outer side of the bearing inner ring 1, an outer ring raceway is formed on the inner side of the bearing outer ring 5, and the rolling bodies 6 are arranged between the inner ring raceway and the outer ring raceway, so that the rolling bodies 6 can be mounted and used conveniently. In order to provide the rolling bodies 6 with the oil storage spaces 8 at both ends, both ends of the rolling bodies 6 should not be in direct contact with the outer ring raceway and the inner ring raceway. For this purpose, as shown in fig. 1, in the present embodiment, an inner ring rolling surface 101 having a logarithmic curve is provided in the inner ring raceway, that is, the inner ring rolling surface 101 has a cambered surface structure protruding toward the rolling bodies 6, and an outer ring rolling surface 51 having a logarithmic curve is provided in the outer ring raceway, that is, the outer ring rolling surface 51 also has a cambered surface structure protruding toward the rolling bodies 6. When the generatrix of the rolling element 6 is still straight, due to the structural limitation of the convex inner ring rolling surface 101 and the convex outer ring rolling surface 51, the rolling element 6 can only contact with the convex middle parts of the inner ring rolling surface 101 and the outer ring rolling surface 51, and the two ends of the rolling surface keep a certain distance with the two ends of the rolling element 6. The contact width of the rolling element 6 with the inner ring rolling surface 101 is smaller than the width of the inner ring rolling surface 101 in the present embodiment; the contact width of the rolling elements 6 with the outer ring rolling surface 51 is smaller than the width of the outer ring rolling surface 51.
In order to further increase the distance, the generatrix of the rolling element 6 is set to be a full convex line in this embodiment, that is, the generatrix of the rolling element 6 is adjusted from a conical structure in which the generatrix is a straight line to a conical structure in which the generatrix is convex. The distance between the two ends of the rolling body 6 and the two ends of the rolling surface is further increased by improving the structure of the rolling body 6. The increased gap enables a large oil storage space 8 to be formed at both ends of the rolling element 6, and lubricating oil can be stored in the oil storage space 8. Lubricating oil can continuously enter the small gap at the middle part of the rolling body 6 from the oil storage spaces 8 at two sides by utilizing a siphon effect (namely the contact surfaces of the rolling body 6 and the inner ring rolling surface 101 and the outer ring rolling surface 51 in the use process), so that the whole bearing forms a structure capable of continuously supplying oil, and the problem of fatigue peeling of the bearing can be remarkably reduced due to the fact that the lubricating oil is enough. The fatigue spalling is a phenomenon that the surfaces of the rolling element 6 and the raceway spall under the repeated action of contact stress (alternating load), and is called fatigue spalling, which is also called pitting.
For the application environment of low speed and heavy load, the bearing is required to better solve the problem of stress concentration, for this reason, in this embodiment, the generatrix of the rolling element 6 is set to be a full convex line with a certain convexity, and the inner ring rolling surface 101 and the outer ring rolling surface 51 are logarithmic curves with a certain convexity, so that the bearing structure can bear larger load and generate elastic metal plastic deformation under load pressure, after the load is relieved, the elastic metal plastic deformation can restore the original appearance, and the setting range of the convexity is the key of the elastic metal plastic deformation. The convexity may be determined based on the type of bearing and the amount of load. The arrangement of the logarithmic curves of the inner ring rolling surface 101 and the outer ring rolling surface 51 can also improve the rotation stability of the rolling body 6 to a certain extent.
In addition, because the amount of lubricating oil is large and the lubricating oil can continuously enter the middle part from two sides, a dynamic pressure oil film is formed between the rolling body 6 and the outer ring rolling surface 51 and the inner ring rolling surface 101, the dynamic pressure oil film can bear a certain load, when the rated load of the bearing reaches 8 times or more than 8 times of the equivalent load of the bearing (the value is 10 times as specified by the design manual in China), the load is borne by the oil film, and each large component of the bearing does relative motion on the oil film, so that the abrasion is reduced, and meanwhile, the bearing has three advantages: the energy can be saved by more than ten percent, the ultrahigh rotating speed can be achieved, and the P4 or even higher precision can be achieved.
Since both ends of the rolling element 6 need to be restricted to rotate in the inner ring raceway, the inner ring raceway in this embodiment is provided with a large flange portion 3 at its large-diameter end and a small flange portion 9 at its small-diameter end; the large flange part 3 and the small flange part 9 are positioned on two sides of the inner ring rolling surface 101;
in order to reduce the friction force between the end surface of the rolling body 6 and the large flange part 3 and the small flange part 9, the inner side of the large flange part 3 is provided with a large arc surface protruding towards the rolling body 6, and a first end surface of the rolling body 6 is in contact with the large arc surface; the inside of the small flange portion 9 has a small arc-shaped surface protruding toward the rolling element 6, and a gap is provided between the second end surface of the rolling element 6 and the small arc-shaped surface, and the gap can utilize the flow of the lubricating oil.
The surface roughness of the rolling body 6 is smaller than that of the inner ring rolling surface 101, and the surface roughness of the inner ring rolling surface 101 is smaller than that of the outer ring rolling surface 51;
the difference between the surface roughness of the rolling body 6 and the surface roughness of the rolling surface 101 of the inner ring is 0.02mm-0.04 mm; the difference between the surface roughness of the inner ring rolling surface 101 and the surface roughness of the outer ring rolling surface 51 is 0.02mm-0.04 mm. By controlling the surface roughness of the rolling body 6, the inner ring rolling surface 101 and the outer ring rolling surface 51, the bearing can absorb and store oil, and the service life of the bearing can be prolonged.
To sum up, the present application discloses: 1, a manufacturing method of the tapered roller bearing in the subdivision field, namely the working condition of low speed and heavy load. 2, inner ring raceway, outer ring raceway and rolling element profile. And 3, roughness fit tolerance between the inner ring raceway surface, the outer ring raceway surface and the rolling body surface. And 4, calculating the convexity of the inner ring raceway, the outer ring raceway and the rolling body.
In order to facilitate the processing of the bearing inner ring 1 and further increase the storage space of the lubricating oil, in the present embodiment, the first tool retracting portion 2 is provided at the corner of the inner ring rolling surface 101 intersecting with the large flange portion 3, and the second tool retracting portion 7 is provided at the corner of the inner ring rolling surface 101 intersecting with the small flange portion 9. More specifically, the inner surfaces of the first tool retracting portion 2 and the second tool retracting portion 7 are arc surfaces, and the diameter of the first tool retracting portion 2 is larger than that of the second tool retracting portion 7.
In the present embodiment, the rolling groove is in linear contact with the rolling element 6, and an oil reservoir is formed in the rolling groove on a contact surface with the rolling element 6 in the axial direction of the rolling element 6. The inner surface of the oil storage tank is an arc surface and is chamfered at the intersection of the inner surface and the contact surface, and an oil storage gap is formed between the inner surface of the oil storage tank and the rolling body 6.
Specifically, since the surface of the rolling element 6 is continuously in contact with the rolling groove during the rotation, the lubricating oil adheres to the surface of the rolling element 6 during the rotation, part of the lubricating oil is filled in the oil storage groove after the rolling element 6 and the rolling groove rotate relatively, and the lubricating oil in the oil storage groove adheres to the rolling element 6 during the continuous rotation of the rolling element 6, thereby further improving the service life of the bearing.
In order to facilitate the flow of the external lubricating oil, an oil guide groove is formed in the rolling groove along the rotating direction of the rolling body 6 and is communicated with the oil storage groove in a through groove structure. The oil guide grooves are arranged in a plurality of numbers and are uniformly distributed along the axial direction of the rolling bodies 6. Lubricating oil can flow in leading oil groove, oil storage tank and oil storage space 8, increases lubricating oil's mobility, improves the life of bearing.
In order to improve the heat dissipation performance of the retainer 4, the retainer 4 is provided with heat dissipation grooves, and the heat dissipation grooves are located between adjacent rolling grooves.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A tapered roller bearing applied to low-speed heavy load is characterized by comprising: the bearing comprises a bearing inner ring, a rolling body, a bearing outer ring and a retainer; wherein the content of the first and second substances,
the retainer is arranged between the bearing inner ring and the bearing outer ring, and a rolling groove for accommodating the rolling body is formed in the retainer;
an inner ring raceway is arranged on the outer side of the bearing inner ring, the inner ring raceway is provided with an inner ring rolling surface in a logarithmic curve, an outer ring raceway is arranged on the inner side of the bearing outer ring, and the outer ring raceway is provided with an outer ring rolling surface in a logarithmic curve;
the bus of the rolling body is set to be a full convex line, and the rolling body is in contact with and in rolling connection with the inner ring rolling surface and the outer ring rolling surface, so that an oil storage space is formed between two ends of the rolling body and the inner ring rolling surface and the outer ring rolling surface.
2. A tapered roller bearing for low-speed heavy loading according to claim 1, wherein said inner ring raceway is provided with a large flange portion at a large-diameter end thereof and a small flange portion at a small-diameter end thereof; the large flange part and the small flange part are positioned on two sides of the rolling surface of the inner ring;
the inner side of the large flange part is provided with a large arc-shaped surface protruding towards the rolling body, and a first end surface of the rolling body is in contact with the large arc-shaped surface;
the inner side of the small flange part is provided with a small arc-shaped surface protruding towards the rolling body, and a gap is formed between the second end surface of the rolling body and the small arc-shaped surface.
3. A tapered roller bearing for low-speed heavy load application according to claim 1, wherein a surface roughness of said rolling elements is smaller than a surface roughness of said inner ring rolling surface, which is smaller than a surface roughness of said outer ring rolling surface;
the difference value between the surface roughness of the rolling body and the surface roughness of the rolling surface of the inner ring is 0.02mm-0.04 mm; the difference between the surface roughness of the rolling surface of the inner ring and the surface roughness of the rolling surface of the outer ring is 0.02mm-0.04 mm.
4. The tapered roller bearing for low-speed heavy load according to claim 2, wherein the inner ring rolling surface has a first relief portion at a corner portion intersecting the large flange portion, and the inner ring rolling surface has a second relief portion at a corner portion intersecting the small flange portion.
5. The tapered roller bearing applied to low-speed heavy load according to claim 4, wherein the inner surfaces of the first and second tool retracting portions are provided as arc surfaces, and the diameter of the first tool retracting portion is larger than that of the second tool retracting portion.
6. The tapered roller bearing for low-speed heavy loading according to any one of claims 1 to 5, wherein a contact width of the rolling elements with the inner ring rolling surface is smaller than a width of the inner ring rolling surface;
the contact width of the rolling body and the outer ring rolling surface is smaller than that of the outer ring rolling surface.
7. The tapered roller bearing applied to low-speed and heavy-load applications as claimed in claim 6, wherein the rolling groove is in linear contact with the rolling element, and an oil storage groove is formed in a contact surface of the rolling groove, which is in contact with the rolling element, along an axial direction of the rolling element.
8. A tapered roller bearing for low-speed heavy load according to claim 7, wherein an inner surface of said oil reservoir is formed as a curved surface and is chamfered at an intersection with said contact surface, and an oil reservoir gap is provided between said inner surface of said oil reservoir and said rolling element.
9. The tapered roller bearing for low-speed and heavy-load applications as claimed in claim 8, wherein an oil guiding groove is formed in the rolling groove along a rotation direction of the rolling element, and the oil guiding groove has a through groove structure and is communicated with the oil storage groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221237866.0U CN217401449U (en) | 2022-05-20 | 2022-05-20 | Tapered roller bearing applied to low-speed heavy load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221237866.0U CN217401449U (en) | 2022-05-20 | 2022-05-20 | Tapered roller bearing applied to low-speed heavy load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217401449U true CN217401449U (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221237866.0U Expired - Fee Related CN217401449U (en) | 2022-05-20 | 2022-05-20 | Tapered roller bearing applied to low-speed heavy load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217401449U (en) |
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2022
- 2022-05-20 CN CN202221237866.0U patent/CN217401449U/en not_active Expired - Fee Related
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Granted publication date: 20220909 |