CN216951279U - Full complement roller bolt shaft bearing - Google Patents
Full complement roller bolt shaft bearing Download PDFInfo
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- CN216951279U CN216951279U CN202220225171.4U CN202220225171U CN216951279U CN 216951279 U CN216951279 U CN 216951279U CN 202220225171 U CN202220225171 U CN 202220225171U CN 216951279 U CN216951279 U CN 216951279U
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Abstract
The utility model relates to a bolt bearing, in particular to a full complement roller bolt shaft bearing, which comprises: the outer ring, the bolt shaft, the roller, the retainer ring and the sealing element; the inner side of the outer ring is circumferentially provided with a groove, the roller is arranged in the groove, the bolt shaft comprises a large-diameter section, a middle-diameter section, a small-diameter section and a bolt section, the middle-diameter section rotatably supports the outer ring through the roller, and the large-diameter section, the middle-diameter section and part of the small-diameter section of the bolt shaft extend into an inner hole of the outer ring; a check ring is fixedly arranged on the outer diameter of the small-diameter section, sealing elements are respectively arranged between the outer diameter of the large-diameter section and the inner diameter of the outer ring and between the outer diameter of the check ring and the inner diameter of the outer ring, and a bolt section of the bolt shaft extends out of the outer ring; the self-sealing bolt shaft bearing with the fully-filled roller has good sealing performance, can better adapt to high-speed rotation of a shaft, and prolongs the service life; and a lubricant can be filled through holes at two ends of the bolt shaft, and the roller is replenished with lubricating grease.
Description
Technical Field
The utility model relates to a bolt bearing, in particular to a full complement roller bolt shaft bearing, and belongs to the technical field of bearings.
Background
The bolt bearing, also called a bolt type curve roller bearing, is widely applied to heavy-load, large-shaft-diameter and small-bearing-seat track equipment; the structure is generally a full complement roller structure;
in the existing bolt shaft bearing, the roller path part of a bolt shaft is quenched, and in order to avoid stress concentration, the outer surface of the thick-wall outer ring of a roller is arc-shaped; the outer ring has two integral flanges axially guided by the rollers. The bearing has certain requirements on the self sealing performance of the bearing when bearing heavier radial load and axial load, and the high sealing performance is favorable for achieving the running performance of the bearing and prolonging the service life.
Disclosure of Invention
In view of the defects of the existing full-complement roller bolt shaft bearing, the utility model aims to provide the full-complement roller bolt shaft bearing with self-sealing, which has good sealing performance and can better adapt to high-speed rotation of a shaft; the holes at the two ends of the bolt shaft can be filled with lubricant to supplement lubricating grease for the roller.
In order to achieve the purpose, the utility model adopts the technical scheme that: a full complement roller bolt shaft bearing comprising: the device comprises an outer ring, a bolt shaft, a roller, a check ring and a sealing element; the inner side of the outer ring is circumferentially provided with a groove, the roller is arranged in the groove, the bolt shaft comprises a large-diameter section, a middle-diameter section, a small-diameter section and a bolt section, the middle-diameter section rotatably supports the outer ring through the roller, and the large-diameter section, the middle-diameter section and part of the small-diameter section of the bolt shaft extend into an inner hole of the outer ring; a check ring is fixedly arranged on the outer diameter of the small-diameter section, sealing elements are respectively arranged between the outer diameter of the large-diameter section and the inner diameter of the outer ring and between the outer diameter of the check ring and the inner diameter of the outer ring, and a bolt section of the bolt shaft extends out of the outer ring;
furthermore, outer ring flanges are respectively formed on two sides of the groove on the inner side outside the ring, flange bosses are respectively arranged at the inner diameters of the two outer ring flanges, which are close to the end surfaces of the rollers, and the flange bosses form a step structure at the inner diameters of the outer ring flanges; a boss is also arranged at the position, close to the end face of the roller, of the outer diameter of the large-diameter section of the bolt shaft, and the boss forms a step structure on the outer diameter of the large-diameter section of the bolt shaft; the sealing element between the outer diameter of the large-diameter section and the inner diameter of the outer ring is arranged between the two step structures;
furthermore, the cross section of the sealing element is a sealing ring with a right-angle corner structure;
furthermore, one end of the sealing ring is contacted with the step of the inner diameter of the flange of the outer ring, and the other end of the sealing ring is contacted with the step of the outer diameter of the large-diameter section of the bolt shaft;
furthermore, the retainer ring is arranged on the small-diameter section of the bolt shaft, is close to the joint of the middle-diameter section and the small-diameter section, and is tightly attached to the side surface of the middle-diameter section;
furthermore, a retainer ring step is arranged at the position, close to the end face of the roller, of the outer diameter of the retainer ring, and a step structure is formed on the outer diameter of the retainer ring by the retainer ring step; the sealing element between the outer diameter of the retainer ring and the inner diameter of the outer ring is arranged between the step of the inner diameter of the outer ring retainer edge and the step of the outer diameter of the retainer ring;
furthermore, the sealing element is a sealing ring with a right-angle corner structure, one end of the sealing ring is in contact with the step of the inner diameter of the outer ring flange, and the other end of the sealing ring is in contact with the step of the outer diameter of the check ring.
And a self-sealing structure of the bearing is formed between the outer ring and the bolt shaft through a sealing ring between the outer ring and the large-diameter section of the bolt shaft and a sealing ring between the outer ring and the retainer ring, so that external dirt is prevented from entering the inside of the bearing.
Furthermore, a locking mechanism is arranged on the outer diameter of the bolt section of the bolt shaft, the locking mechanism comprises a locking washer and a nut, the nut is positioned in the direction of the outer side of the bolt section of the bolt shaft, and the locking washer is close to the inside of the nut;
furthermore, the number of the locking mechanisms on the bolt section of the bolt shaft is at least set to be 1, and the number is set according to the actual size of the bolt shaft;
preferably, the number of the locking mechanisms on the bolt section of the bolt shaft is set to be 2, so that the reinforced locking effect is ensured;
further, the locking washer is a spring washer;
when the bolt shaft bearing is installed on equipment, the bolt shaft moves in the equipment, and after the installation is finished, the nut of the locking mechanism is adjusted to enable the nut to be fastened with the equipment on the bolt section of the bolt shaft through the locking washer, so that the outer ring of the bearing and the roller are prevented from axially moving.
Furthermore, oil holes are formed in the axial direction and the radial direction of the bolt shaft, the oil holes in the axial direction are formed in two ends of the bolt shaft, a screwed plug is arranged in the oil hole close to the large-diameter section direction of the bolt shaft, and an oil cup is arranged in the oil hole close to the bolt section direction of the bolt shaft; the oil hole in the radial direction is arranged from the center of the middle-diameter section of the bolt shaft to the outer diameter and communicated to the roller;
the roller and the roller path are lubricated through axial and radial oil holes of the bolt shaft, the oil hole in the large-diameter section direction of the bolt shaft is plugged by a screw plug, and the oil hole in the bolt section direction of the bolt shaft is used for supplementing lubrication to the roller through an oil cup.
The utility model has the beneficial effects that: the self-sealing bolt shaft bearing with the fully-filled roller has good sealing performance, can better adapt to high-speed rotation of a shaft, and prolongs the service life; and a lubricant can be filled through holes at two ends of the bolt shaft, and the roller is replenished with lubricating grease.
Drawings
FIG. 1 is a block diagram of the present invention.
In the figure, a sealing ring 1, a roller 2, a retainer ring 3, a plug 4, a bolt shaft 5, an outer ring 6, a lock washer 7, a nut 8, an oil cup 9, a large-diameter section a, a medium-diameter section b and a small-diameter section c are arranged.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model.
A full complement roller bolt shaft bearing as shown in fig. 1, comprising: the device comprises an outer ring 6, a bolt shaft 5, a roller 2, a retainer ring 3 and a sealing element; a groove is circumferentially arranged on the inner side of the outer ring 6, the rollers 2 are arranged in the groove, the bolt shaft 5 comprises a large-diameter section a, a medium-diameter section b, a small-diameter section c and a bolt section, the medium-diameter section b rotatably supports the outer ring 6 through the rollers 2, and the large-diameter section a, the medium-diameter section b and part of the small-diameter section c of the bolt shaft 5 extend into an inner hole of the outer ring 6; a retainer ring 3 is fixedly arranged on the outer diameter of the small-diameter section c, sealing elements are respectively arranged between the outer diameter of the large-diameter section a and the inner diameter of the outer ring 6 and between the outer diameter of the retainer ring 3 and the inner diameter of the outer ring 6, and a bolt section of the bolt shaft 5 extends out of the outer ring 6;
further, outer ring flanges are respectively formed on two sides of the groove on the inner side of the outer ring 6, flange bosses are respectively arranged on the inner diameters of the two outer ring flanges, which are close to the end surfaces of the rollers 2, and the flange bosses form a step structure on the inner diameters of the outer ring flanges; a boss is also arranged at the position, close to the end face of the roller 2, of the outer diameter of the large-diameter section a of the bolt shaft, and the boss forms a step structure on the outer diameter of the large-diameter section a of the bolt shaft; the sealing element between the outer diameter of the large-diameter section a and the inner diameter of the outer ring 6 is arranged between the two step structures;
further, the cross section of the sealing element is a sealing ring 1 with a right-angle corner structure;
furthermore, one end of the sealing ring 1 is contacted with the step of the inner diameter of the outer ring flange, and the other end of the sealing ring 1 is contacted with the step of the outer diameter of the large-diameter section a of the bolt shaft;
furthermore, the retainer ring 3 is arranged on the small-diameter section c of the bolt shaft, is close to the joint of the middle-diameter section b and the small-diameter section c, and is tightly attached to the side surface of the middle-diameter section b;
furthermore, a retainer ring step is arranged on the outer diameter of the retainer ring 3 close to the end face of the roller 2, and a step structure is formed on the outer diameter of the retainer ring by the retainer ring step; a sealing element between the outer diameter of the retainer ring 3 and the inner diameter of the outer ring 6 is arranged between the step of the inner diameter of the outer ring flange and the step of the outer diameter of the retainer ring 3;
further, the sealing element is a sealing ring 1 with a right-angle corner structure, one end of the sealing ring 1 is in contact with the step of the inner diameter of the outer ring flange, and the other end of the sealing ring 1 is in contact with the step of the outer diameter of the retainer ring 3.
The outer ring 6 and the bolt shaft 5 form a self-sealing structure of the bearing through the sealing ring 1 between the outer ring 6 and the large-diameter section a of the bolt shaft and the sealing ring 1 between the outer ring 6 and the retainer ring 6, so that external dirt is prevented from entering the inside of the bearing.
Further, a locking mechanism is arranged on the outer diameter of the bolt section of the bolt shaft 5, the locking mechanism comprises a locking washer 7 and a nut 8, the nut 8 is located on the outer side of the bolt section of the bolt shaft 5, and the locking washer 7 is close to the inside of the nut 8;
in the embodiment, the number of the locking mechanisms on the bolt section of the bolt shaft 5 is set to be 2, so that the reinforced locking effect is ensured;
further, the locking washer 7 is a spring washer;
when the bolt shaft bearing is installed on equipment, the bolt shaft 5 moves in the equipment, and after the installation is finished, the nut 8 of the locking mechanism is adjusted to enable the nut 8 to be fastened with the equipment on the bolt section of the bolt shaft 5 through the locking washer 7, so that the bearing outer ring 6 and the roller 2 are prevented from axially moving inside.
Furthermore, oil holes are formed in the axial direction and the radial direction of the bolt shaft 5, the oil holes in the axial direction are formed in the two ends of the bolt shaft 5, a screwed plug 4 is arranged in the oil hole close to the large-diameter section a of the bolt shaft, and an oil cup 9 is arranged in the oil hole close to the bolt section of the bolt shaft 5; the oil hole in the radial direction is arranged from the center of the middle-diameter section b of the bolt shaft to the outer diameter and communicated to the roller 2;
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 all persons skilled in the art should be able to cover the technical solutions of the present invention and the equivalent alternatives or modifications thereof within the technical scope of the present invention.
Claims (9)
1. A full complement roller bolt shaft bearing, comprising: the outer ring, the bolt shaft, the roller, the retainer ring and the sealing element; the inner side of the outer ring is circumferentially provided with a groove, the roller is arranged in the groove, the bolt shaft comprises a large-diameter section, a middle-diameter section, a small-diameter section and a bolt section, the middle-diameter section rotatably supports the outer ring through the roller, and the large-diameter section, the middle-diameter section and part of the small-diameter section of the bolt shaft extend into an inner hole of the outer ring; the outer diameter of the small-diameter section is fixedly provided with a check ring, sealing elements are respectively arranged between the outer diameter of the large-diameter section and the inner diameter of the outer ring and between the outer diameter of the check ring and the inner diameter of the outer ring, and the bolt section of the bolt shaft extends out of the outer ring.
2. The full complement roller bolt shaft bearing of claim 1, wherein: outer ring flanges are respectively formed on two sides of the groove on the outer side and the inner side of the ring, flange bosses are respectively arranged at the positions, close to the end surfaces of the rollers, of the inner diameters of the two outer ring flanges, and the flange bosses form a step structure at the inner diameters of the outer ring flanges; a boss is also arranged at the position, close to the end face of the roller, of the outer diameter of the large-diameter section of the bolt shaft, and the boss forms a step structure on the outer diameter of the large-diameter section of the bolt shaft; and a sealing element between the outer diameter of the large-diameter section and the inner diameter of the outer ring is arranged between the two step structures.
3. A full complement roller bolt shaft bearing as claimed in claim 2, wherein: the cross section of the sealing element is a sealing ring with a right-angle corner structure.
4. A full complement roller bolt shaft bearing as claimed in claim 3, wherein: one end of the sealing ring is in contact with the step of the inner diameter of the flange of the outer ring, and the other end of the sealing ring is in contact with the step of the outer diameter of the large-diameter section of the bolt shaft.
5. The full complement roller bolt shaft bearing of claim 1, wherein: the retainer ring is arranged on the small-diameter section of the bolt shaft, is close to the joint of the medium-diameter section and the small-diameter section, and is tightly attached to the side surface of the medium-diameter section.
6. A full complement roller bolt shaft bearing as claimed in claim 5, wherein: the outer diameter of the retainer ring is provided with a retainer ring step close to the end face of the roller, and the retainer ring step forms a step structure on the outer diameter of the retainer ring; and a sealing element between the outer diameter of the retainer ring and the inner diameter of the outer ring is arranged between the step of the inner diameter of the outer ring retainer edge and the step of the outer diameter of the retainer ring.
7. The full complement roller bolt shaft bearing of claim 6, wherein: the sealing element is a sealing ring with a right-angle corner structure, one end of the sealing ring is in contact with the step of the inner diameter of the outer ring flange, and the other end of the sealing ring is in contact with the step of the outer diameter of the retainer ring.
8. A full complement roller bolt shaft bearing according to any one of claims 1 to 7, wherein: the bolt section external diameter of bolt axle is equipped with locking mechanism, locking mechanism includes lock washer and nut, and the nut is located bolt axle bolt section outside direction, and the lock washer is close to inside the nut.
9. The full complement roller bolt shaft bearing of claim 8, wherein: the number of the locking mechanisms on the bolt section of the bolt shaft is at least set to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220225171.4U CN216951279U (en) | 2022-01-27 | 2022-01-27 | Full complement roller bolt shaft bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220225171.4U CN216951279U (en) | 2022-01-27 | 2022-01-27 | Full complement roller bolt shaft bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216951279U true CN216951279U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220225171.4U Active CN216951279U (en) | 2022-01-27 | 2022-01-27 | Full complement roller bolt shaft bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216951279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321162A (en) * | 2022-01-27 | 2022-04-12 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Full complement roller bolt shaft bearing |
-
2022
- 2022-01-27 CN CN202220225171.4U patent/CN216951279U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321162A (en) * | 2022-01-27 | 2022-04-12 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Full complement roller bolt shaft bearing |
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