CN207795847U - A kind of three rows of rollers turntable bearing - Google Patents
A kind of three rows of rollers turntable bearing Download PDFInfo
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- CN207795847U CN207795847U CN201721720495.0U CN201721720495U CN207795847U CN 207795847 U CN207795847 U CN 207795847U CN 201721720495 U CN201721720495 U CN 201721720495U CN 207795847 U CN207795847 U CN 207795847U
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- roller
- convex platform
- annular convex
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- ring
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Abstract
The utility model belongs to technical field of bearings, and in particular to a kind of three rows of rollers turntable bearing.The three rows of rollers turntable bearing of proposition has ring gear and inner ring setting up and down；There is the annular convex platform I outwardly protruded, the lower face of inner ring to have outwardly directed annular convex platform II for the upper surface of ring gear；Outer ring is provided on the outside of ring gear and inner ring, the middle part of outer ring internal face has the annular convex platform III inwardly stretched out；Toroidal cavity I is formed between annular convex platform III and annular convex platform I and the internal face of outer ring；The roller I being axially arranged and the roller being radially arranged II are provided in toroidal cavity I；Roller I and roller II are multiple, and roller I and the interval of roller II are arranged；Toroidal cavity II is formed between annular convex platform III and annular convex platform II and the internal face of outer ring；Multiple rollers III being placed on retainer are provided in toroidal cavity II.The utility model reduces the weight of turntable bearing so that lasso internal structure is simple.
Description
Technical field
The utility model belongs to technical field of bearings, and in particular to a kind of three rows of rollers turntable bearing.
Background technology
In certain big machinery equipment, using three rows of rollers turntable bearing, such turntable bearing has two row axially to arrange
The roller of the roller of row and a row arranged radially, three row's roller diameters and length are different, often arrange roller and carry retainer
Keep roller evenly distributed, internal structure is complicated, and appearance and size is bigger than normal, and fixed as installation by turntable bearing internal diameter and outer diameter
Position benchmark is nor easily；So in order to simplify its internal structure, under the requirement for meeting its bearing capacity, and make shape ruler
Very little reduction, while keeping its installation positioning convenient, it is necessary to invent a kind of novel three rows of rollers turntable bearing.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to propose a kind of three rows of rollers turntable bearing.
The utility model is to complete above-mentioned purpose to adopt the following technical scheme that：
A kind of three rows of rollers turntable bearing, the three rows of rollers turntable bearing have ring gear setting up and down and
Inner ring；The ring gear is bolted with the inner ring and is integrated；The upper surface of the ring gear has convex
The lower face of the annular convex platform I gone out, the inner ring has outwardly directed annular convex platform II；On the outside of the ring gear and inner ring
It is provided with outer ring, the middle part of the outer ring internal face has the annular convex platform III inwardly stretched out；The annular convex platform III and ring
It is formed between shape boss I and the internal face of outer ring to place the toroidal cavity I of roller；It is set in the toroidal cavity I
It is equipped with the roller I being axially arranged and the roller being radially arranged II；The roller I and roller II is multiple and described rolling
Column I and the setting of the interval of roller II；Annular is formed between the annular convex platform III and annular convex platform II and the internal face of outer ring
Cavity II；It is provided with to place the retainer of roller III in the toroidal cavity II；The roller III is circumferentially
Uniformly distributed is multiple, and the axial setting of roller III.
The purpose of this utility model is to propose that a kind of three rows of rollers turntable bearing is axially set using above-mentioned technical proposal
The roller I set and the setting of the interval of the roller being radially arranged II, and retainer is omitted between the two, reduce the weight of turntable bearing
Amount so that lasso internal structure is simple；The internal face of outer ring and the outside wall surface of inner ring can also limit roller I；It is axial
The roller III of setting bears predominantly axially load from below, and the roller I being axially arranged bears the certain axial direction come from above
Load；The roller II being radially arranged bears certain radial load.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
In figure：1, outer ring, 2, ring gear, 3, inner ring, 4, roller I, 5, roller II, 6, roller III, 7, retainer, 8, spiral shell
Bolt, 9, annular convex platform I, 10, annular convex platform II, 11, annular convex platform III.
Specific implementation mode
The utility model is described in further detail in conjunction with the three rows of rollers turntable bearing used in certain big machinery；
As shown in Figure 1, a kind of three rows of rollers turntable bearing, the three rows of rollers turntable bearing has setting up and down
Ring gear 2 and inner ring 3；The ring gear 2 is connected as one with the inner ring 3 by bolt 8；The ring gear 2
There is the annular convex platform I 9 outwardly protruded, the lower face of the inner ring to have outwardly directed annular convex platform II 10 for upper surface；Institute
The ring gear 2 and 3 outside of inner ring stated are provided with outer ring 1, and the middle part of 1 internal face of the outer ring has the annular convex platform inwardly stretched out
Ⅲ11；It is formed between the annular convex platform III 11 and annular convex platform I 9 and the internal face of outer ring 1 to place the ring of roller
Shape cavity I；It is provided with the roller I 4 being axially arranged and the roller being radially arranged II 5 in the toroidal cavity I；The rolling
Column I 4 and roller II 5 are that multiple and described roller I 4 and the interval of roller II 5 are arranged；The annular convex platform III 11 and ring
Toroidal cavity II is formed between shape boss II 10 and the internal face of outer ring 1；Be provided in the toroidal cavity II to
Place the retainer 7 of roller III 6；The roller III 6 is the axial setting of roller III 6 for being uniformly distributed along the circumference multiple and described.
Claims (1)
1. a kind of three rows of rollers turntable bearing, it is characterised in that：The three rows of rollers turntable bearing has setting up and down
Ring gear and inner ring；The ring gear is bolted with the inner ring and is integrated；The upper surface of the ring gear
With the annular convex platform I outwardly protruded, the lower face of the inner ring has outwardly directed annular convex platform II；The ring gear
Inner ring outside is provided with outer ring, the middle part of the outer ring internal face has the annular convex platform III inwardly stretched out；The annular
It is formed between boss III and annular convex platform I and the internal face of outer ring to place the toroidal cavity I of roller；In the annular
The roller I being axially arranged and the roller being radially arranged II are provided in cavity I；The roller I and roller II is multiple, and
The roller I and the setting of the interval of roller II；Between the annular convex platform III and annular convex platform II and the internal face of outer ring
Form toroidal cavity II；It is provided with to place the retainer of roller III in the toroidal cavity II；The roller III
The axial setting of the roller III multiple and described for what is be uniformly distributed along the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721720495.0U CN207795847U (en) | 2017-12-12 | 2017-12-12 | A kind of three rows of rollers turntable bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721720495.0U CN207795847U (en) | 2017-12-12 | 2017-12-12 | A kind of three rows of rollers turntable bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795847U true CN207795847U (en) | 2018-08-31 |
Family
ID=63283807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721720495.0U Active CN207795847U (en) | 2017-12-12 | 2017-12-12 | A kind of three rows of rollers turntable bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207795847U (en) |
-
2017
- 2017-12-12 CN CN201721720495.0U patent/CN207795847U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |