CN218564205U - Full-sealed four-row tapered roller bearing - Google Patents
Full-sealed four-row tapered roller bearing Download PDFInfo
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- CN218564205U CN218564205U CN202222571995.XU CN202222571995U CN218564205U CN 218564205 U CN218564205 U CN 218564205U CN 202222571995 U CN202222571995 U CN 202222571995U CN 218564205 U CN218564205 U CN 218564205U
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- roller bearing
- tapered roller
- outer ring
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Abstract
The utility model relates to the technical field of bearings, in particular to a full-sealed four-row tapered roller bearing, which comprises an inner ring, an outer ring coaxially arranged outside the inner ring, a retainer arranged between the inner ring and the outer ring, and a plurality of rolling elements arranged on the retainer, wherein two side sealing components are arranged on the end surfaces of two sides close to the inner ring and the outer ring, and the side sealing components are arranged between the inner ring and the outer ring; the side seal assembly comprises a special-shaped steel skeleton, the special-shaped steel skeleton is provided with a crimping part and a C-shaped bending part, the crimping part is pressed on the outer ring, one end of the C-shaped bending part is integrally formed with the crimping part, the other end of the C-shaped bending part is coated with double-lip rubber, and at least one seal lip of the double-lip rubber is tightly attached to the outer diameter of the inner ring. The utility model discloses the shared space of side seal subassembly has been reduced for holder and rolling element increase the utilization ratio in space, and then improved the bearing capacity of bearing.
Description
Technical Field
The utility model relates to a bearing technical field specifically is a totally enclosed formula four-row tapered roller bearing.
Background
The sealed four-row tapered roller bearing applied in the fields of metallurgy, rolling mills and mines has severe working environment and requires higher dust-proof, slag-proof and pollution-proof capacities, so that two ends and inner and outer diameters of the bearing need to be provided with sealing structures. However, since the sealing structure is provided on both sides of the bearing, compared with the conventional four-row tapered roller bearing, the sealing structure occupies a large space inside the bearing, and the length of the rolling element must be reduced to prevent the retainer from interfering with the sealing structure during design, thereby reducing the bearing capacity of the sealed four-row tapered roller bearing.
SUMMERY OF THE UTILITY MODEL
In view of the defects of the prior art, the utility model provides a full-sealed four-row tapered roller bearing, its side seal subassembly is comparatively close to the bearing end face, has reduced the shared space of side seal subassembly for holder and rolling element increase the utilization ratio in space, and then have improved the bearing capacity of bearing.
In order to achieve the above object, the technical solution provided by the present invention is a fully sealed four-row tapered roller bearing, including an inner ring, an outer ring coaxially disposed outside the inner ring, a retainer disposed between the inner ring and the outer ring, and a plurality of rolling elements mounted on the retainer, two side sealing assemblies disposed near the two side end faces of the inner ring and the outer ring, and the side sealing assemblies disposed between the inner ring and the outer ring; the side seal assembly comprises a special-shaped steel skeleton, the special-shaped steel skeleton is provided with a crimping part and a C-shaped bending part, the crimping part is crimped on the outer ring, one end of the C-shaped bending part is integrally formed with the crimping part, the other end of the C-shaped bending part is coated with double-lip rubber, and at least one seal lip of the double-lip rubber is tightly attached to the outer diameter of the inner ring.
Furthermore, the C-shaped bent part is bent twice and protrudes to one side far away from the rolling body.
Furthermore, an annular installation gap is formed in the position, close to the inner diameter, of the end face of the outer ring, the crimping part is crimped on the bottom face of the annular installation gap through a sealing crimping ring and is fixed through a locking part, and the end face of the crimping part is not higher than the end face of the outer ring.
Preferably, the locking member comprises a socket head cap screw.
Further, the double-lip rubber is provided with a main lip and a first inner concave part arranged on the back side of the main lip, and a first elastic element is embedded in the first inner concave part to buffer the elastic deformation of the first inner concave part.
Further, the first elastic element includes a first spring.
Preferably, the double-lip rubber has a sub lip which forms a labyrinth seal with the outer diameter of the inner ring.
Furthermore, the inner ring comprises two double-raceway inner rings which are coaxially arranged, a sealing component mounting notch is formed in the end face, connected with each other, of each of the two double-raceway inner rings and close to the inner diameter of each of the two double-raceway inner rings, and an inner diameter sealing component is embedded in each sealing component mounting notch.
Further, the inner diameter sealing assembly comprises a sealing rubber piece, a second concave part is formed in one side, away from the outer ring, of the sealing rubber piece, and a second elastic element is embedded in the second concave part to buffer elastic deformation of the second concave part.
Preferably, the second elastic element comprises a second spring.
Furthermore, the outer ring comprises two single-raceway outer rings and a double-raceway outer ring which are coaxially arranged, the two single-raceway outer rings on the two sides are respectively embedded with an O-shaped sealing ring, and the O-shaped sealing rings are close to the end faces of the single-raceway outer rings and are embedded in the outer diameters of the single-raceway outer rings.
The utility model has the advantages that: the utility model discloses well side seal subassembly includes special-shaped steel skeleton, and special-shaped steel skeleton has crimping portion and C type kink, can make way more spaces for rolling element and holder to keeping away from the crooked C type kink of rolling element direction through setting up to make side seal subassembly comparatively be close to the bearing end face, reduced the shared space of side seal subassembly, make holder and rolling element increase the utilization ratio in space, and then improved the bearing capacity of bearing.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is an enlarged view of a portion B of FIG. 1;
in the figure: 100. an inner ring 110, a double-roller inner ring 111 and a sealing component mounting gap,
200. an outer ring, 210, a single-raceway outer ring, 211, an O-shaped sealing ring, 220, a double-raceway outer ring, 230, an annular mounting notch,
300. the holding frame is provided with a plurality of holding frames,
400. the rolling bodies are arranged on the outer side of the rolling body,
500. a side sealing component 510, a special-shaped steel framework 511, a crimping part 512, a C-shaped bending part 520, a double-lip rubber 521, a main lip 522, a first inner concave part 523, a first elastic element 524, a secondary lip 530, a sealing press ring,
600. inner diameter seal assembly, 610, sealing rubber, 611, second inner recess, 612, second resilient element.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
Referring to fig. 1, the fully sealed four-row tapered roller bearing includes an inner ring 100, an outer ring 200, a cage 300, and a plurality of rolling elements 400, wherein the outer ring 200 is coaxially disposed outside the inner ring 100, the cage 300 is disposed between the inner ring 100 and the outer ring 200, and the plurality of rolling elements 400 are mounted in pockets of the cage 300.
Referring to fig. 2 in combination, two side sealing assemblies 500 are disposed near two side end surfaces of the inner ring 100 and the outer ring 200, and the side sealing assemblies 500 are disposed between the inner ring 100 and the outer ring 200. The side sealing assembly 500 includes a special-shaped steel frame 510, the special-shaped steel frame 510 has a press-fitting portion 511 and a C-shaped bending portion 512, the press-fitting portion 511 is press-fitted to the outer ring 200, one end of the C-shaped bending portion 512 is integrally formed with the press-fitting portion 511, the other end of the C-shaped bending portion 512 is covered with a double-lip rubber 520, and at least one sealing lip of the double-lip rubber 520 is tightly adhered to the outer diameter of the inner ring 100.
The side sealing assembly 500 of the fully-sealed four-row tapered roller bearing adopts an enclosed structure, and two side sealing assemblies 500 are arranged on the end faces of two sides close to the inner ring 100 and the outer ring 200, so that the bearing has higher dust-proof, slag-proof and pollution-proof capabilities, and can better adapt to severe working conditions in the fields of metallurgy, rolling mills, mines and the like. In addition, the main body of the side seal assembly 500 is as close to the end face of the bearing as possible, and the deformed steel frame 510 and the double-lip rubber 520 are shrunk inwards, where inward shrinkage refers to that the two ends of the side seal assembly 500 are shrunk inwards in fig. 2 to reach an effective functional area, so that the space utilization of the retainer 300 and the rolling bodies 400 is maximized under the condition that the side seal assembly 500 does not protrude out of the end face of the bearing, and the bearing capacity of the bearing is further improved.
Preferably, referring to fig. 2, in an embodiment, the C-shaped bent portion 512 is bent twice and protrudes to a side away from the rolling element 400. Compared with the traditional sealing assembly, the fully-sealed four-row tapered roller bearing reduces bending of a primary steel skeleton, avoids interference with a bending part in design of the rolling body and the retainer, reduces the occupied space of the sealing assembly, increases the utilization rate of the space by the retainer and the rolling body, and further improves the bearing capacity of the bearing.
Referring to fig. 2, in an embodiment, an annular installation gap 230 is formed in a position, close to the inner diameter, of an end surface of the outer ring 200, the crimping portion 511 is press-fitted to a bottom surface of the annular installation gap 230 through a sealing press ring 530 and is fixed through a locking member 540, and an end surface of the crimping portion 511 is not higher than the end surface of the outer ring 200. In particular arrangements, retaining member 540 includes a socket head cap screw. It should be noted that the locking member 540 may be other fasteners, and it is sufficient that the pressing portion 511 can be locked on the bottom surface of the annular installation gap 230.
With reference to fig. 2, in an embodiment, the double-lip rubber 520 has a main lip 521 and a first inner concave portion 522 disposed on a side opposite to the main lip 521, and the first inner concave portion 522 is embedded with a first elastic element 523 to buffer elastic deformation of the first inner concave portion 522. In addition, the side sealing assembly 500 is composed of a special-shaped steel framework 510 and a double-lip rubber 520, the double-lip rubber lip is divided into a main lip 521 and a secondary lip 524, a labyrinth seal is formed between the secondary lip 524 and the outer diameter of the inner ring, specifically, in one embodiment, the secondary lip 524, a small rib of the inner ring and a tool withdrawal groove form a labyrinth seal, the main lip 521 is in contact seal with the inner ring 100, and the first elastic element 523 is sleeved on the inner ring 100, so that the sealing performance of the bearing can be enhanced. Preferably, in an embodiment, the first elastic element 523 comprises a first spring.
Referring to fig. 3, in an embodiment, the inner ring 100 includes two coaxially disposed double-raceway inner rings 110, a sealing assembly installation notch 111 is formed on an end surface of the two connected double-raceway inner rings 110 and near an inner diameter of the double-raceway inner rings 110, and an inner diameter sealing assembly 600 is embedded in the sealing assembly installation notch 111.
In an embodiment, the inner diameter sealing assembly 600 includes a sealing rubber member 610, a second concave portion 611 is formed in a side of the sealing rubber member 610 away from the outer ring 200, and a second elastic element 612 is embedded in the second concave portion 611 to buffer elastic deformation of the second concave portion 611. In the fully-sealed four-row tapered roller bearing, the sealing assembly mounting notch 111 is formed between the two double-raceway inner rings 110 to mount the inner diameter sealing assembly 600, and the inner diameter sealing assembly 600 is configured to be a structure in which the sealing rubber member 610 is matched with the second elastic element 612, so that the sealing performance of the bearing can be enhanced.
Preferably, in an embodiment, the second concave portion 611 includes a second spring.
Referring to fig. 1 and 3, in an embodiment, the outer ring 200 includes two single-track outer rings 210 and a double-track outer ring 220, which are coaxially disposed, wherein O-rings 211 are respectively embedded in the two single-track outer rings 210 located on both sides, and the O-rings 211 are disposed near an end surface of the single-track outer ring 210 and embedded in an outer diameter of the single-track outer ring 210. Compared with the conventional bearing, the fully-sealed four-row tapered roller bearing eliminates a sealing retainer ring of an outer ring, an O-shaped sealing ring 211 is installed in an open ring groove on the single-raceway outer ring 210, and an oil groove (not shown) and an oil hole (not shown) are processed on the single-raceway outer ring 210.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Claims (10)
1. The utility model provides a full-sealed four-row tapered roller bearing, includes the inner circle, coaxial set up in the outer lane of the inner circle outside, set up in the inner circle with holder between the outer lane, and a plurality of installation in the rolling element of holder, its characterized in that:
two side face sealing assemblies are arranged close to the end faces of the two sides of the inner ring and the outer ring, and the side face sealing assemblies are arranged between the inner ring and the outer ring;
the side seal assembly comprises a special-shaped steel skeleton, the special-shaped steel skeleton is provided with a crimping part and a C-shaped bending part, the crimping part is crimped on the outer ring, one end of the C-shaped bending part is integrally formed with the crimping part, the other end of the C-shaped bending part is coated with double-lip rubber, and at least one seal lip of the double-lip rubber is tightly attached to the outer diameter of the inner ring.
2. A fully-sealed four-row tapered roller bearing according to claim 1, wherein: the C-shaped bent part is bent twice and protrudes to one side far away from the rolling body.
3. A fully-sealed four-row tapered roller bearing according to claim 1, wherein: the end face of the outer ring is provided with an annular installation gap at a position close to the inner diameter, the crimping part is crimped on the bottom face of the annular installation gap through a sealing crimp ring and is fixed through a locking part, and the end face of the crimping part is not higher than the end face of the outer ring.
4. A fully-sealed four-row tapered roller bearing according to any one of claims 1 to 3, characterized in that: the double-lip rubber is provided with a main lip and a first inner concave part arranged on one side of the main lip opposite to the main lip, and the first inner concave part is embedded with a first elastic element to buffer the elastic deformation of the first inner concave part.
5. The fully-sealed four-row tapered roller bearing according to claim 4, wherein: the first elastic element includes a first spring.
6. The fully-sealed four-row tapered roller bearing according to claim 4, wherein: the double-lip rubber is provided with an auxiliary lip, and labyrinth seal is formed between the auxiliary lip and the outer diameter of the inner ring.
7. A fully-sealed four-row tapered roller bearing according to any one of claims 1 to 3, characterized in that: the inner ring comprises two double-raceway inner rings which are coaxially arranged, a sealing component mounting notch is formed in the end face, connected with each other, of each of the two double-raceway inner rings and is close to the inner diameter of each of the two double-raceway inner rings, and an inner diameter sealing component is embedded in each sealing component mounting notch.
8. The fully-sealed four-row tapered roller bearing according to claim 7, wherein: the inner diameter sealing assembly comprises a sealing rubber piece, a second concave part is formed in one side, away from the outer ring, of the sealing rubber piece, and a second elastic element is embedded in the second concave part to buffer elastic deformation of the second concave part.
9. A fully-sealed four-row tapered roller bearing according to claim 8, wherein: the second elastic element includes a second spring.
10. A fully-sealed four-row tapered roller bearing according to any one of claims 1 to 3, characterized in that: the outer ring comprises two single-raceway outer rings and a double-raceway outer ring which are coaxially arranged, O-shaped sealing rings are embedded in the two single-raceway outer rings on two sides respectively, and the O-shaped sealing rings are close to the end faces of the single-raceway outer rings and embedded in the outer diameters of the single-raceway outer rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222571995.XU CN218564205U (en) | 2022-09-28 | 2022-09-28 | Full-sealed four-row tapered roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222571995.XU CN218564205U (en) | 2022-09-28 | 2022-09-28 | Full-sealed four-row tapered roller bearing |
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| Publication Number | Publication Date |
|---|---|
| CN218564205U true CN218564205U (en) | 2023-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222571995.XU Active CN218564205U (en) | 2022-09-28 | 2022-09-28 | Full-sealed four-row tapered roller bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117006156A (en) * | 2023-09-27 | 2023-11-07 | 万向钱潮股份公司 | Combined roller bearing for new energy vehicle |
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2022
- 2022-09-28 CN CN202222571995.XU patent/CN218564205U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117006156A (en) * | 2023-09-27 | 2023-11-07 | 万向钱潮股份公司 | Combined roller bearing for new energy vehicle |
| CN117006156B (en) * | 2023-09-27 | 2023-12-26 | 万向钱潮股份公司 | Combined roller bearing for new energy vehicle |
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