CN216618263U - Composite riding wheel bearing - Google Patents
Composite riding wheel bearing Download PDFInfo
- Publication number
- CN216618263U CN216618263U CN202123223343.9U CN202123223343U CN216618263U CN 216618263 U CN216618263 U CN 216618263U CN 202123223343 U CN202123223343 U CN 202123223343U CN 216618263 U CN216618263 U CN 216618263U
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- mandrel
- riding wheel
- ring
- outer ring
- thrust ball
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Abstract
The utility model introduces a composite riding wheel bearing, which comprises a mandrel, a cylindrical roller, a riding wheel outer ring, a retainer ring, a thrust ball bearing race, a steel ball and a round nut; the outer ring of the riding wheel is sleeved in the middle of the mandrel, and the four rows of cylindrical rollers are respectively arranged between the inner wall of the outer ring of the riding wheel and the outer edge of the mandrel through two retainers A; the retainer rings are respectively arranged on the outer edges of the mandrels outside the two groups of cylindrical rollers; the two thrust ball bearing race raceways are oppositely arranged on the outer edge of the mandrel at the two ends of the riding wheel outer ring, and two rows of steel balls are respectively arranged between the riding wheel outer ring and the thrust ball bearing race through a retainer B; the two round nuts are respectively arranged on the external thread part on the outer edge of the mandrel. The utility model has more compact structure, lighter weight and more flexible rotation; two sets of thrust ball bearings are compounded at two ends of the outer ring of the riding wheel, so that the whole riding wheel can bear radial force and axial force at the same time; oil is supplied through the interior of the mandrel, so that the lubrication is more sufficient; the modular structure is convenient to replace and maintain.
Description
Technical Field
The utility model relates to the technical field of a riding wheel bearing, in particular to a composite riding wheel bearing.
Background
The rotary kiln, the mixer, the dryer, the garbage kiln and the granulator are all required to be supported by the supporting roller bearing, the supporting roller bearing is an important bearing point of the rotary equipment, the load of the supporting roller bearing can reach hundreds of tons, the supporting roller bearing is ensured to have enough bearing capacity in the operation process, the supporting roller bearing is durable and uniformly stressed, most of the existing supporting roller bearing sets are cylindrical roller combinations, the weight is large, the value is high, the structure is complex, only radial force can be borne, the axial impact force cannot be resisted, and the application range is limited.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a composite riding wheel bearing which can bear the impact of radial force and axial force simultaneously, and has stable structure and flexible rotation.
The technical scheme adopted by the utility model is as follows:
a composite riding wheel bearing comprises a mandrel, a cylindrical roller, a riding wheel outer ring, a retainer ring, a thrust ball bearing race, a steel ball and a round nut;
the two ends of the middle raceway part of the outer edge of the mandrel are respectively provided with an external thread part, and the center of the mandrel is provided with a through center mounting hole along the axis; the supporting roller outer ring is sleeved in the middle of the mandrel, the ring surfaces of two ends of the supporting roller outer ring are respectively provided with a circle of groove raceways, and the middle part of the inner wall of the supporting roller outer ring is provided with a circle of convex ring; every two of the four rows of cylindrical rollers are arranged in a group between the inner wall of the outer ring of the riding wheel on two sides of the convex ring and the outer edge of the mandrel through two retainers A;
the retainer rings are respectively arranged on the outer edges of the mandrels at the outer sides of the two groups of cylindrical rollers; the two thrust ball bearing race raceways are oppositely arranged on the outer edges of the mandrels at the two ends of the riding wheel outer ring; two rows of steel balls are respectively arranged between the groove raceways at the two ends of the outer ring of the riding wheel and the raceways of the two thrust ball bearing races through the retainer B; the two round nuts are respectively arranged on the external thread parts of the outer edges of the mandrels at the outer sides of the two thrust ball bearing races to fix the fixed thrust ball bearing races and prevent axial movement.
Specifically, sealing rings are respectively arranged between the ring surfaces at the two ends of the outer ring of the riding wheel and the two thrust ball bearing race rings.
Specifically, a groove for assembling the round nut is formed in the outer ring of the round nut.
Specifically, the inner wall of the central mounting hole of the mandrel is provided with through oil injection holes which correspond to the two groups of cylindrical rollers and the convex ring respectively.
Specifically, two end parts of the central mounting hole of the mandrel are provided with internal thread holes; the centering device is used for installing, centering and hoisting the mandrel.
Specifically, a plurality of limiting steps for assembling the retainer ring and the thrust ball bearing race are arranged on the outer edge of the mandrel; the clearance between the retainer ring and the end part of the cylindrical roller and the clearance between the thrust ball bearing race and the retainer ring are ensured, and the cylindrical roller and the steel ball are prevented from being blocked.
Specifically, the outer ring of the riding wheel is carburized and quenched.
Due to the adoption of the technical scheme, the utility model has the following advantages:
the structure of bearing seats at two ends and a middle rolling shaft of the traditional riding wheel bearing is changed, and the structure of the riding wheel bearing is more compact, lighter in weight and more flexible in rotation; the outer ring of the riding wheel adopts a carburizing steel structure, so that the riding wheel is more impact-resistant; two sets of thrust ball bearings are compounded at two ends of the outer ring of the riding wheel, so that the whole riding wheel can bear radial force and axial force at the same time; oil is supplied through the interior of the mandrel, so that the lubrication is more sufficient; the structure of the sliding block is convenient to replace and maintain.
Drawings
Figure 1 is a schematic cross-sectional view of the entirety of the present invention.
Fig. 2 is a schematic view of a partial connection of the present invention.
In the figure: 1-mandrel, 2-cylindrical roller, 3-riding wheel outer ring, 31-convex ring, 4-retainer ring, 5-thrust ball bearing race, 6-steel ball, 7-round nut, 8-retainer A, 9-retainer B, 10-sealing ring and 11-oil injection hole.
Detailed Description
The utility model is further explained below with reference to the drawings and examples, without thereby limiting the scope of protection of the utility model, which is disclosed with the aim of protecting all technical modifications within the scope of the utility model.
The composite riding wheel bearing combined with the attached figures 1-2 comprises a mandrel 1, a cylindrical roller 2, a riding wheel outer ring 3, a retainer ring 4, a thrust ball bearing race 5, a steel ball 6 and a round nut 7.
The outer edge of the mandrel 1 is provided with a plurality of limiting steps for assembling the retainer ring 4 and the thrust ball bearing race 5, and the two ends of the central mounting hole of the mandrel 1 are provided with inner threaded holes for mounting, centering and hoisting of the mandrel 1.
The supporting roller outer ring 3 is sleeved in the middle of the mandrel 1, the supporting roller outer ring 3 is carburized and quenched, a circle of groove roller paths are respectively arranged on the ring surfaces of two ends of the supporting roller outer ring 3, a circle of convex ring 31 is arranged in the middle of the inner wall of the supporting roller outer ring 3, and every two groups of four-row cylindrical rollers 2 are respectively arranged between the inner walls of the supporting roller outer rings 3 on two sides of the convex ring 31 and the outer edge of the mandrel 1 through two retainers A8; the inner wall of the central hole of the mandrel 1 is provided with a through oil filling hole 11 which corresponds to the positions of the two groups of cylindrical rollers 2 and the convex ring 31 respectively.
The retainer rings 4 are respectively arranged on the corresponding limiting steps at the outer edge of the mandrel 1 at the outer sides of the two groups of cylindrical rollers 2; the raceways of the two thrust ball bearing races 5 are oppositely arranged on the limiting steps corresponding to the outer edge of the mandrel 1 at the two ends of the riding wheel outer ring 3, and the thrust ball bearing races 5 are tightly matched with the mandrel; two rows of steel balls 6 are respectively arranged between the groove raceways at the two ends of the riding wheel outer ring 3 and the raceways of the two thrust ball bearing races 5 through a retainer B9; sealing rings 10 are respectively arranged between the ring surfaces at two ends of the riding wheel outer ring 3 and the two thrust ball bearing race rings 5; the two round nuts 7 are respectively arranged on the external thread parts of the outer edges of the mandrel 1 at the outer sides of the two thrust ball bearing races 5; the outer ring of the round nut 7 is provided with a groove for assembling the round nut 7.
During assembly, a mandrel 1 penetrates into a riding wheel outer ring 3, two rows of cylindrical rollers 2 and a retainer A8 on one side of a convex ring 31 of the riding wheel outer ring 3 are firstly installed, a retainer ring 4 on the same side is installed on the mandrel, then a retainer B9 and a steel ball 6 are installed, a sealing ring 10 is installed in a sealing groove of a thrust ball bearing race 5, the thrust ball bearing race 5 is tightly installed on the mandrel 1 in a matching mode, a round nut 7 is screwed on an external thread part of the outer edge of the mandrel 1, the thrust ball bearing race 5 is fixed and limited, the thrust ball bearing race 5 is turned to the other end to be assembled on the other side according to the same steps, and the whole riding wheel bearing is assembled.
The present invention is not described in detail in the prior art.
The embodiments selected for the purpose of disclosing the utility model, are presently considered to be suitable, it being understood, however, that the utility model is intended to cover all variations and modifications of the embodiments falling within the scope of the inventive concept and the utility model.
Claims (7)
1. The utility model provides a compound riding wheel bearing which characterized in that: the device comprises a mandrel, a cylindrical roller, a riding wheel outer ring, a retainer ring, a thrust ball bearing race, a steel ball and a round nut;
the two ends of the middle raceway part of the outer edge of the mandrel are respectively provided with an external thread part, and the center of the mandrel is provided with a through center mounting hole along the axis; the supporting roller outer ring is sleeved in the middle of the mandrel, the ring surfaces of two ends of the supporting roller outer ring are respectively provided with a circle of groove raceways, and the middle part of the inner wall of the supporting roller outer ring is provided with a circle of convex ring; every two of the four rows of cylindrical rollers are arranged in a group between the inner wall of the outer ring of the riding wheel on two sides of the convex ring and the outer edge of the mandrel through two retainers A;
the retainer rings are respectively arranged on the outer edges of the mandrels at the outer sides of the two groups of cylindrical rollers; the two thrust ball bearing race raceways are oppositely arranged on the outer edges of the mandrels at the two ends of the riding wheel outer ring; two rows of steel balls are respectively arranged between the groove raceways at the two ends of the outer ring of the riding wheel and the raceways of the two thrust ball bearing races through the retainer B; the two round nuts are respectively arranged on the external thread parts of the outer edges of the mandrels at the outer sides of the two thrust ball bearing races.
2. The composite idler bearing according to claim 1, wherein: and sealing rings are respectively arranged between the ring surfaces at the two ends of the outer ring of the riding wheel and the two thrust ball bearing race rings.
3. The composite idler bearing according to claim 1, wherein: the outer ring of the round nut is provided with a groove for assembling the round nut.
4. The composite idler bearing according to claim 1, wherein: and the inner wall of the central mounting hole of the mandrel is provided with through oil injection holes which correspond to the two groups of cylindrical rollers and the convex ring respectively.
5. The composite idler bearing according to claim 1, wherein: two end parts of the central mounting hole of the mandrel are provided with internal thread holes; the centering device is used for installing, centering and hoisting the mandrel.
6. The composite idler bearing according to claim 1, wherein: the outer edge of the mandrel is provided with a plurality of limiting steps for assembling the retainer ring and the thrust ball bearing race; the clearance between the retainer ring and the end part of the cylindrical roller and the clearance between the thrust ball bearing race and the retainer ring are ensured, and the cylindrical roller and the steel ball are prevented from being blocked.
7. The composite idler bearing according to claim 1, wherein: and carburizing and quenching the outer ring of the riding wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123223343.9U CN216618263U (en) | 2021-12-21 | 2021-12-21 | Composite riding wheel bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123223343.9U CN216618263U (en) | 2021-12-21 | 2021-12-21 | Composite riding wheel bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216618263U true CN216618263U (en) | 2022-05-27 |
Family
ID=81704522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123223343.9U Active CN216618263U (en) | 2021-12-21 | 2021-12-21 | Composite riding wheel bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216618263U (en) |
-
2021
- 2021-12-21 CN CN202123223343.9U patent/CN216618263U/en active Active
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