CN219197904U - Turntable bearing for ultra-large tonnage crawler crane - Google Patents
Turntable bearing for ultra-large tonnage crawler crane Download PDFInfo
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- CN219197904U CN219197904U CN202320258808.4U CN202320258808U CN219197904U CN 219197904 U CN219197904 U CN 219197904U CN 202320258808 U CN202320258808 U CN 202320258808U CN 219197904 U CN219197904 U CN 219197904U
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- 238000005096 rolling process Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a turntable bearing for a super-tonnage crawler crane, which comprises a first outer ring, a second outer ring, a middle ring, a first inner ring and a second inner ring, wherein the whole middle ring is of a circular structure and consists of a first circular ring and a second circular ring which are coaxial and are fixed into a whole, the lower side of the outer wall of the first circular ring is provided with a first annular boss, the upper surface of the first annular boss is provided with a first reverse thrust axial raceway, and the lower surface of the first annular boss is provided with a first main thrust axial raceway; the lower side of the inner wall of the first circular ring is provided with a second annular boss, the upper surface of the second annular boss is provided with a second reverse thrust axial raceway, and the lower surface of the second annular boss is provided with a second main thrust axial raceway. The utility model improves the roller combination structure of the turntable bearing for the existing ultra-large tonnage crawler crane, improves the radial load capacity of the bearing, effectively ensures the axial load capacity of the bearing, remarkably improves the running stability of the product and has wider application range.
Description
Technical Field
The utility model relates to a super-tonnage turntable bearing, in particular to a turntable bearing for a super-tonnage crawler crane.
Background
The bearing capacity, the running reliability and the safety of the turntable bearing for the ultra-large tonnage crawler crane are relatively higher, and the existing design adopts a six-row cylindrical roller combined structure, for example, the roller turntable bearing for the ultra-large tonnage crawler crane, which is proposed by a patent CN101705965A, is characterized in that the axial force and the overturning moment born by the turntable bearing are born by the upper two rows of rollers and the lower three rows of rollers, and a row of radial rollers are arranged between the inner roller path of an inner ring and the outer roller path of a second outer ring through a retainer so as to bear radial load. The combined structure of the six rows of cylindrical rollers greatly improves the bearing capacity of the bearing, has higher bearing capacity compared with the three rows of cylindrical roller turntable bearings with the same external dimensions in the early stage, reduces the height of the bearing, improves the running reliability and safety of the crawler crane and reduces the manufacturing cost.
However, the turntable bearing for the ultra-large tonnage crawler crane is mostly applied to heavy engineering machinery, the construction environment is complex, and the radial load capacity of the bearing is slightly insufficient by adopting the existing single-row radial roller arrangement in hills, sloping fields and other terrains, so that the normal operation of the engineering machinery is not facilitated.
Disclosure of Invention
Aiming at the problems in the background art, the utility model aims to provide a turntable bearing for a super-tonnage crawler crane, which has higher radial load capacity and better axial load capacity, can improve the running stability of crawler engineering machinery on various terrains, and is suitable for heavy crawler engineering machinery working on all terrains.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the turntable bearing for the ultra-large tonnage crawler crane comprises a first outer ring, a second outer ring, a middle ring, a first inner ring and a second inner ring, wherein the first outer ring and the second outer ring are connected through one-to-one corresponding connecting holes, the first inner ring and the second inner ring are also connected through one-to-one corresponding connecting holes, the whole middle ring is of a circular ring structure and consists of a first circular ring and a second circular ring which are coaxial and are fixedly integrated, the first circular ring is positioned at the upper part of the second circular ring, a first annular boss is arranged at the lower side of the outer wall of the first circular ring, a first reverse thrust axial raceway is arranged on the upper surface of the first annular boss, and a first main thrust axial raceway is arranged on the lower surface of the first annular boss; the lower side of the inner wall of the first circular ring is provided with a second annular boss, the upper surface of the second annular boss is provided with a second reverse thrust axial raceway, and the lower surface of the second annular boss is provided with a second main thrust axial raceway;
the first outer ring and the second outer ring are sleeved outside the middle ring, and jointly cover the first annular boss, and the first outer ring is positioned at the lower part of the second outer ring; first axial rollers are uniformly distributed between the first outer ring and the first main thrust axial roller way, fourth axial rollers are uniformly distributed between the second outer ring and the first reverse thrust axial roller way, sixth radial rollers are uniformly distributed between the first outer ring and the second outer ring, and the rolling surface of the sixth radial rollers is contacted with the outer side surface of the first annular boss;
the first inner ring and the second inner ring are both positioned in the middle ring, the first annular boss is jointly covered by the first inner ring and the second inner ring, and the first inner ring is positioned at the lower part of the second inner ring; second axial rollers are uniformly distributed between the first inner ring and the second main thrust axial roller way, third axial rollers are uniformly distributed between the second inner ring and the second reverse thrust axial roller way, fifth radial rollers are uniformly distributed between the first inner ring and the second inner ring, and the rolling surface of the fifth radial rollers is contacted with the inner side surface of the second annular boss.
The upper part of the inner side wall of the second outer ring is provided with a fourth annular boss, the fourth annular boss is positioned above the first annular boss, the lower surface of the fourth annular boss is provided with a fourth axial roller path, and the fourth axial roller is arranged between the fourth axial roller path and the first reverse thrust axial roller path; the lower part of the inner side wall of the second outer ring is provided with a sixth radial roller path for installing the sixth radial roller.
The upper part of the outer side wall of the second inner ring is provided with a third annular boss, the third annular boss is positioned above the second annular boss, the lower surface of the third annular boss is provided with a third axial roller path, and the third axial roller is arranged between the third axial roller path and the second reverse thrust axial roller path; the lower part of the outer side wall of the second inner ring is provided with a fifth radial roller path for installing the fifth radial roller.
The lower part of the inner side wall of the first outer ring is provided with a fifth annular boss, the fifth annular boss is positioned below the first annular boss, the upper surface of the fifth annular boss is provided with a first axial roller path, and the first axial roller is arranged between the first axial roller path and the first main thrust axial roller path; and a seventh annular boss is arranged on the upper surface of the first outer ring and used for placing the sixth radial roller, and the upper surface of the seventh annular boss is higher than the lower surface of the second circular ring.
The lower part of the inner side wall of the first inner ring is provided with a sixth annular boss, the sixth annular boss is positioned below the second annular boss, the upper surface of the sixth annular boss is provided with a second axial roller path, and the second axial roller is arranged between the second axial roller path and the second main thrust axial roller path; an eighth annular boss is arranged on the upper surface of the first inner ring and used for placing the fifth radial roller, and the upper surface of the eighth annular boss is higher than the lower surface of the second ring.
The first axial rollers are arranged into two groups along the radial direction of the middle ring, and the second axial rollers are also arranged into two groups along the radial direction of the middle ring.
The outer parts of the first axial roller, the second axial roller, the third axial roller, the fourth axial roller, the fifth radial roller and the sixth radial roller are respectively provided with a retainer.
The upper parts of the two side walls of the first circular ring are respectively provided with a sealing lip, and the two sides of the lower end face of the second circular ring are respectively provided with a sealing lip.
The rolling axis of the sixth radial roller is parallel to the axis of the middle ring, and the rolling axis of the fifth radial roller is parallel to the axis of the middle ring.
The utility model has the beneficial effects that: the utility model improves the six-row cylindrical roller combined structure of the traditional turntable bearing for the ultra-large tonnage crawler crane, improves the radial load capacity of the bearing by arranging a row of radial rollers on two sides of a middle ring respectively, designs the lower three rows of axial rollers into two rows, and each row of axial rollers is divided into two rows, which is equivalent to lengthening the working length of the lower single row of axial rollers, and effectively ensures the axial load capacity of the bearing, thus obviously improving the stability of product operation and having wider application range.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model.
Fig. 2 is a schematic diagram of the overall structure of the present utility model.
Fig. 3 is a schematic structural view of the first outer ring.
Fig. 4 is a schematic structural view of the first inner ring.
Fig. 5 is a schematic view of the structure of the middle ring.
Fig. 6 is a schematic structural view of the second outer ring.
Fig. 7 is a schematic structural view of the second inner ring.
In the figure: 1. a first outer race; 2. a sixth holder; 3. a sixth radial roller; 4. a first axial roller; 5. a first holder; 6. a second axial roller; 7. a second holder; 8. a fifth radial roller; 9. a fifth holder; 10. a first inner ring; 11. a second inner ring; 12. a third holder; 13. a third axial roller; 14. a middle ring; 15. a fourth axial roller; 16. a fourth holder; 17. second outer race, 28, first axial race, 30, second axial race, 32, first main thrust axial race, 33, second main thrust axial race, 34, first counterthrust axial race, 35, second counterthrust axial race, 36, fourth axial race, 38, third axial race.
Description of the embodiments
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-7, the turntable bearing for the ultra-large tonnage crawler crane comprises a first outer ring 1, a second outer ring 17, a middle ring 14, a first inner ring 10 and a second inner ring 11, wherein the first outer ring 1 and the second outer ring 17 are connected through one-to-one corresponding connecting holes, the first inner ring 10 and the second inner ring 11 are also connected through one-to-one corresponding connecting holes, the middle ring 14 is of a circular ring structure integrally and consists of a first circular ring and a second circular ring which are coaxial and are fixedly integrated, the first circular ring is positioned at the upper part of the second circular ring, a first annular boss is arranged at the lower side of the outer wall of the first circular ring, a first inverse thrust axial raceway 32 is arranged on the upper surface of the first annular boss, and a first main thrust axial raceway 34 is arranged on the lower surface of the first annular boss; the lower side of the inner wall of the first circular ring is provided with a second annular boss, the upper surface of the second annular boss is provided with a second reverse thrust axial raceway 33, and the lower surface of the second annular boss is provided with a second main thrust axial raceway 35; the first outer ring 1 and the second outer ring 17 are sleeved outside the middle ring 14, the first annular boss is jointly covered by the first outer ring 1 and the second outer ring 17, and the first outer ring 1 is positioned at the lower part of the second outer ring 17; first axial rollers 4 are uniformly distributed between the first outer ring 1 and the first main thrust axial roller path 34, fourth axial rollers 15 are uniformly distributed between the second outer ring 17 and the first counter thrust axial roller path 32, sixth radial rollers 3 are uniformly distributed between the first outer ring 1 and the second outer ring 17, and the rolling surface of the sixth radial rollers 3 is contacted with the outer side surface of the first annular boss; the first inner ring 10 and the second inner ring 11 are both positioned in the middle ring 14, the first inner ring 10 and the second inner ring 11 jointly cover the second annular boss, and the first inner ring 10 is positioned at the lower part of the second inner ring 11; second axial rollers 6 are uniformly distributed between the first inner ring 10 and the second main thrust axial roller path 35, third axial rollers 13 are uniformly distributed between the second inner ring 11 and the second counterthrust axial roller path 33, fifth radial rollers 8 are uniformly distributed between the first inner ring 10 and the second inner ring 11, and the rolling surface of the fifth radial rollers 8 is in contact with the inner side surface of the second annular boss.
The upper part of the inner side wall of the second outer ring 17 is provided with a fourth annular boss, the fourth annular boss is positioned above the first annular boss, the lower surface of the fourth annular boss is provided with a fourth axial rollaway nest 36, and the fourth axial roller 15 is arranged between the fourth axial rollaway nest 36 and the first reverse thrust axial rollaway nest 34; the lower part of the inner side wall of the second outer ring 17 has a sixth radial raceway for mounting the sixth radial rollers 3.
The upper part of the outer side wall of the second inner ring 11 is provided with a third annular boss, the third annular boss is positioned above the second annular boss, the lower surface of the third annular boss is provided with a third axial raceway 38, and the third axial roller 13 is arranged between the third axial raceway 38 and the second thrust-reversing axial raceway 35; the lower part of the outer side wall of the second inner ring 11 is provided with a fifth radial raceway for mounting the fifth radial roller 8.
The lower part of the inner side wall of the first outer ring 1 is provided with a fifth annular boss, the fifth annular boss is positioned below the first annular boss, the upper surface of the fifth annular boss is provided with a first axial roller path 28, and the first axial roller 4 is arranged between the first axial roller path 28 and a first thrust reversing axial roller path 32; a seventh annular boss is arranged on the upper surface of the first outer ring 1 and is used for placing the sixth radial roller 3, and the upper surface of the seventh annular boss is higher than the lower surface of the second circular ring.
The lower part of the inner side wall of the first inner ring 10 is provided with a sixth annular boss, the sixth annular boss is positioned below the second annular boss, the upper surface of the sixth annular boss is provided with a second axial raceway 30, and the second axial roller 6 is arranged between the second axial raceway 30 and a second main thrust axial raceway 33; an eighth annular boss is provided on the upper surface of the first inner ring 10 for placing the fifth radial roller 8, and the upper surface of the eighth annular boss is higher than the lower surface of the second ring.
The first axial rollers 4 are arranged into two groups along the radial direction of the middle ring 14, the two groups of first axial rollers 4 take the axis of the middle ring 14 as the center of a circle and are in an annular array, and the end parts between the two corresponding first axial rollers 4 are attached without isolation blocks; the second axial rollers 6 are also arranged into two groups along the radial direction of the middle ring 14, the two groups of second axial rollers 6 take the axis of the middle ring 14 as the center of a circle and are in annular array, and the end parts between the two corresponding second axial rollers 6 are attached without isolation blocks.
The outer parts of the first axial roller 4, the second axial roller 6, the third axial roller 13, the fourth axial roller 15, the fifth radial roller 8 and the sixth radial roller 3 are respectively provided with a retainer. As shown in fig. 1 and 2, the first axial roller 4 is provided with a first cage 5 at the outside thereof, the second axial roller 6 is provided with a second cage 7 at the outside thereof, the third axial roller 13 is provided with a third cage 12 at the outside thereof, the fourth axial roller 15 is provided with a fourth cage 16 at the outside thereof, the fifth radial roller is provided with a fifth cage 9 at the outside thereof, and the sixth radial roller 3 is provided with a sixth cage 2 at the outside thereof.
The upper parts of the two side walls of the first circular ring are respectively provided with a sealing lip, and the two sides of the lower end face of the second circular ring are respectively provided with a sealing lip.
The rolling axis of the sixth radial roller 3 is parallel to the axis of the middle ring 14, and the rolling axis of the fifth radial roller 8 is parallel to the axis of the middle ring 14.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
The utility model is not described in detail in the prior art.
Claims (8)
1. The utility model provides a super tonnage is turntable bearing for crawler crane, includes first outer lane (1), second outer lane (17), well circle (14), first inner circle (10) and second inner circle (11), connects through the connecting hole of one-to-one between first outer lane (1), the second outer lane (17), also connects through the connecting hole of one-to-one between first inner circle (10), the second inner circle (11), characterized by: the middle ring (14) is of a circular structure, and consists of a first circular ring and a second circular ring which are coaxial and are integrally fixed, the first circular ring is positioned at the upper part of the second circular ring, a first annular boss is arranged at the lower side of the outer wall of the first circular ring, a first reverse thrust axial rollaway nest (34) is arranged on the upper surface of the first annular boss, and a first main thrust axial rollaway nest (32) is arranged on the lower surface of the first annular boss; the lower side of the inner wall of the first circular ring is provided with a second annular boss, the upper surface of the second annular boss is provided with a second reverse thrust axial raceway (35), and the lower surface of the second annular boss is provided with a second main thrust axial raceway (33);
the first outer ring (1) and the second outer ring (17) are sleeved outside the middle ring (14), the first annular boss is jointly covered by the first outer ring (1) and the second outer ring (17), and the first outer ring (1) is positioned at the lower part of the second outer ring (17); first axial rollers (4) are uniformly distributed between the first outer ring (1) and the first main thrust axial roller way (32), fourth axial rollers (15) are uniformly distributed between the second outer ring (17) and the first reverse thrust axial roller way (34), sixth radial rollers (3) are uniformly distributed between the first outer ring (1) and the second outer ring (17), and the rolling surface of the sixth radial rollers (3) is contacted with the outer side surface of the first annular boss;
the first inner ring (10) and the second inner ring (11) are both positioned in the middle ring (14), the first inner ring (10) and the second inner ring (11) jointly cover the second annular boss, and the first inner ring (10) is positioned at the lower part of the second inner ring (11); second axial rollers (6) are uniformly distributed between the first inner ring (10) and the second main thrust axial roller path (33), third axial rollers (13) are uniformly distributed between the second inner ring (11) and the second reverse thrust axial roller path (35), fifth radial rollers (8) are uniformly distributed between the first inner ring (10) and the second inner ring (11), and the rolling surface of the fifth radial rollers (8) is contacted with the inner side surface of the second annular boss.
2. The turntable bearing for a super-tonnage crawler crane according to claim 1, wherein: the upper part of the inner side wall of the second outer ring (17) is provided with a fourth annular boss, the fourth annular boss is positioned above the first annular boss, the lower surface of the fourth annular boss is provided with a fourth axial rollaway nest (36), and the fourth axial roller (15) is arranged between the fourth axial rollaway nest (36) and the first thrust-reversing axial rollaway nest (34); the lower part of the inner side wall of the second outer ring (17) is provided with a sixth radial roller path for installing the sixth radial roller (3).
3. The turntable bearing for a super-tonnage crawler crane according to claim 1, wherein: the upper part of the outer side wall of the second inner ring (11) is provided with a third annular boss, the third annular boss is positioned above the second annular boss, the lower surface of the third annular boss is provided with a third axial roller path (38), and the third axial roller (13) is arranged between the third axial roller path (38) and the second thrust-reversing axial roller path (35); the lower part of the outer side wall of the second inner ring (11) is provided with a fifth radial roller path for installing the fifth radial roller (8).
4. The turntable bearing for a super-tonnage crawler crane according to claim 1, wherein: the lower part of the inner side wall of the first outer ring (1) is provided with a fifth annular boss, the fifth annular boss is positioned below the first annular boss, the upper surface of the fifth annular boss is provided with a first axial roller path (28), and the first axial roller (4) is arranged between the first axial roller path (28) and a first main thrust axial roller path (32); a seventh annular boss is arranged on the upper surface of the first outer ring (1) and used for placing the sixth radial roller (3), and the upper surface of the seventh annular boss is higher than the lower surface of the second circular ring.
5. The turntable bearing for a super-tonnage crawler crane according to claim 1, wherein: the lower part of the inner side wall of the first inner ring (10) is provided with a sixth annular boss, the sixth annular boss is positioned below the second annular boss, a second axial raceway (30) is arranged on the upper surface of the sixth annular boss, and the second axial roller (6) is arranged between the second axial raceway (30) and a second main thrust axial raceway (33); an eighth annular boss is arranged on the upper surface of the first inner ring (10) and used for placing the fifth radial roller (8), and the upper surface of the eighth annular boss is higher than the lower surface of the second ring.
6. The turntable bearing for a super-tonnage crawler crane according to claim 1, wherein: the first axial rollers (4) are arranged into two groups along the radial direction of the middle ring (14), and the second axial rollers (6) are also arranged into two groups along the radial direction of the middle ring (14).
7. The turntable bearing for a super-tonnage crawler crane according to claim 1, wherein: the outer parts of the first axial roller (4), the second axial roller (6), the third axial roller (13), the fourth axial roller (15), the fifth radial roller (8) and the sixth radial roller (3) are respectively provided with a retainer.
8. The turntable bearing for a super-tonnage crawler crane according to claim 1, wherein: the upper parts of the two side walls of the first circular ring are respectively provided with a sealing lip, and the two sides of the lower end face of the second circular ring are respectively provided with a sealing lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320258808.4U CN219197904U (en) | 2023-02-20 | 2023-02-20 | Turntable bearing for ultra-large tonnage crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320258808.4U CN219197904U (en) | 2023-02-20 | 2023-02-20 | Turntable bearing for ultra-large tonnage crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219197904U true CN219197904U (en) | 2023-06-16 |
Family
ID=86701826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320258808.4U Active CN219197904U (en) | 2023-02-20 | 2023-02-20 | Turntable bearing for ultra-large tonnage crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219197904U (en) |
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2023
- 2023-02-20 CN CN202320258808.4U patent/CN219197904U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: Luoyang Bearing Group Co.,Ltd. Country or region after: China Patentee after: Luoyang Bearing Holding Co.,Ltd. Address before: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: LUOYANG LYC BEARING Co.,Ltd. Country or region before: China Patentee before: Luoyang Bearing Holding Co.,Ltd. |
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| CP03 | Change of name, title or address |