CN201647860U - Three-ring slewing bearing structure - Google Patents
Three-ring slewing bearing structure Download PDFInfo
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- CN201647860U CN201647860U CN2010292510060U CN201029251006U CN201647860U CN 201647860 U CN201647860 U CN 201647860U CN 2010292510060 U CN2010292510060 U CN 2010292510060U CN 201029251006 U CN201029251006 U CN 201029251006U CN 201647860 U CN201647860 U CN 201647860U
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- ring
- slewing bearing
- middle ring
- rollers
- roller
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- 238000007789 sealing Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The embodiment of the utility model discloses a three-ring slewing bearing structure. The slewing bearing structure comprises an outer ring (1), a center ring (2), an inner ring (3) and rollers (4), wherein the outer ring (1) is positioned on the outer side of the center ring (2); the inner ring (3) is positioned on the inner side of the center ring (2); the center ring (2) rotates relatively to the outer ring (1) and the inner ring (3) respectively through the rollers (4); and the center ring (2) adopts a combined structure and consists of an upper center ring (21) and a lower center ring (22). In the utility model, by virtue of a plurality of groups of rollers and a plurality of support rings, the dimensions of the rollers and the support rings are reduced, the slewing bearing structure is optimized, the bearing capacity of the slewing bearing structure is improved, the assembly and processing are easy, and the application is extensive.
Description
Technical Field
The utility model relates to the field of machinary, in particular to three ring type slewing bearing structures.
Background
With the development of the crane towards large tonnage and ultra large tonnage, higher requirements are put forward on the design and manufacture of the slewing bearing of the crane, specifically, the structural form of the slewing bearing needs to be matched with relevant equipment of the large tonnage crane, and the bearing capacity of the slewing bearing needs to meet the load level of the large tonnage crane.
In the prior art, a slewing bearing consists of an outer ring, an inner ring and a roller, wherein the roller is arranged between the outer ring and the inner ring, and the outer ring and the inner ring rotate relatively through the roller; the slewing bearing outer ring is connected with the upper structure of the equipment, and the inner ring is connected with the lower structure, or the slewing bearing inner ring is connected with the upper structure of the equipment, and the slewing bearing outer ring is connected with the lower structure. In order to meet the structural and bearing requirements of large-tonnage cranes or other mechanical equipment, the size of the slewing bearing rollers and the bearing rings is generally increased, or the size and the structure of the connecting bolts are increased.
However, in practical application scenarios, in order to meet the bearing requirements of large-tonnage cranes or other mechanical equipment, it is usually necessary to increase the heights and outer diameters of the slewing bearing rollers and the supporting rings, and to increase the size of the connecting bolts, so that the slewing bearing cannot be well matched with the equipment to be borne.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a three-ring type slewing bearing structure has reduced the size of roller and backup ring, has avoided the too big problem of slewing bearing size, has optimized slewing bearing's structure, has improved slewing bearing's bearing capacity simultaneously.
The embodiment of the utility model provides a three-ring slewing bearing structure, include: an outer ring (1), an inner ring (3) and a roller (4),
the anti-theft device is characterized by further comprising a middle ring (2), wherein the outer ring (1) is positioned on the outer side of the middle ring (2), the inner ring (3) is positioned on the inner side of the middle ring (2), and the middle ring (2) rotates relative to the outer ring (1) and the inner ring (3) through rollers (4); wherein, the middle ring (2) is a combined structure, and the middle ring (2) is composed of an upper middle ring (21) and a lower middle ring (22).
Preferably, the device also comprises a screw (5), and the upper middle ring (21) and the lower middle ring (22) are connected through the screw (5).
Preferably, the rollers (4) are cylindrical rollers.
Preferably, three layers of rollers (4) are distributed between the outer ring (1) and the middle ring (2), and three layers of rollers (4) are distributed between the middle ring (2) and the inner ring (3); wherein,
the axial lines of the upper layer cylindrical rollers and the lower layer cylindrical rollers are parallel to the plane of the slewing bearing, and the axial lines of the middle layer cylindrical rollers are perpendicular to the plane of the slewing bearing.
Preferably, the outer ring (1) and the inner ring (3) are connected with a lower structure, and the middle ring (2) is connected with an upper structure.
Preferably, the three-ring type slewing bearing structure further comprises a sealing strip (6),
is arranged between the outer ring (1) and the middle ring (2) and/or between the inner ring (3) and the middle ring (2).
The embodiment of the utility model provides a three-ring slewing bearing structure through adopting multiunit roller and a plurality of backup ring, has reduced the size of roller and backup ring, has optimized slewing bearing's structure, has improved slewing bearing's bearing capacity to easily assembly processing, application range is big.
Drawings
In order to illustrate the technical solutions of the present invention or the prior art more clearly, the drawings used in the description of the present invention or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without creative efforts.
Fig. 1 is a schematic cross-sectional view of a three-ring slewing bearing structure according to an embodiment of the present invention;
fig. 2 is a schematic spatial structure diagram of a three-ring slewing bearing structure according to an embodiment of the present invention;
description of the figures
1. Outer ring 2, middle ring
21. Upper middle ring 22, lower middle ring
3. Inner ring 4, roller
5. Screw 6, sealing strip.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the utility model provides a three ring type slewing bearing structures, include: an outer ring 1, an inner ring 3 and a roller 4,
the device also comprises a middle ring 2, wherein the outer ring 1 is positioned on the outer side of the middle ring 2, the inner ring 3 is positioned on the inner side of the middle ring 2, and the middle ring 2 rotates relative to the outer ring 1 and the inner ring 3 through rollers 4; wherein, the middle ring 2 is a combined structure, and the middle ring 2 consists of an upper middle ring 21 and a lower middle ring 22.
Preferably, the screw 5 is further included, and the upper middle ring 21 and the lower middle ring 22 are connected through the screw 5.
Wherein the roller 4 is a cylindrical roller.
Preferably, three layers of rollers 4 are distributed between the outer ring 1 and the middle ring 2, and three layers of rollers 4 are distributed between the middle ring 2 and the inner ring 3; wherein,
the axial lines of the upper layer cylindrical rollers and the lower layer cylindrical rollers are parallel to the plane of the slewing bearing, and the axial lines of the middle layer cylindrical rollers are perpendicular to the plane of the slewing bearing.
Preferably, the outer ring 1 is connected to the inner ring 3 in a substructure and the middle ring 2 is connected to the superstructure.
Furthermore, the three-ring type slewing bearing structure also comprises a sealing strip 6,
is arranged between the outer ring 1 and the middle ring 2 and/or between the inner ring 3 and the middle ring 2.
Through adopting the embodiment of the utility model provides a three ring type slewing bearing structure adopts multiunit roller and a plurality of backup ring, has reduced the size of roller and backup ring, has optimized slewing bearing's structure, has improved slewing bearing's bearing capacity to easily assembly processing, application range is big.
The embodiment of the utility model provides a three-ring slewing bearing structure, as shown in fig. 1 and fig. 2, wherein, fig. 1 is the section structure schematic diagram of three-ring slewing bearing structure, and fig. 2 is the spatial structure schematic diagram of three-ring slewing bearing structure, include: the outer ring 1, the middle ring 2, the inner ring 3, the roller 4, the screw 5 and the seal strip 6 are described, wherein the roller 4 is a cylindrical roller.
The outer ring 1 is positioned on the outer side of the middle ring 2, the inner ring 3 is positioned on the inner side of the middle ring 2, the middle ring 2 rotates relative to the outer ring 1 through the rollers 4, and the middle ring 2 rotates relative to the inner ring 3 through the rollers 4.
The middle ring 2 is a combined structure, the middle ring 2 is composed of an upper middle ring 21 and a lower middle ring 22, the upper middle ring 21 and the lower middle ring 22 are connected through a screw 5, preferably, the screw 5 is screwed into the upper middle ring 21 from the lower middle ring 22, and the upper middle ring 21 and the lower middle ring 22 are combined into the middle ring 2.
Three layers of cylindrical rollers are distributed between the outer ring 1 and the middle ring 2, and three layers of cylindrical rollers are distributed between the middle ring 2 and the inner ring 3; the axial lines of the upper layer cylindrical rollers and the lower layer cylindrical rollers are parallel to the plane of the slewing bearing, and the axial lines of the middle layer cylindrical rollers are perpendicular to the plane of the slewing bearing.
It should be noted that, in the embodiment of the present invention, the roller 4 may also adopt other types of rollers such as a spherical roller and a tapered roller, and specifically, what type of roller 4 is adopted does not affect the protection scope of the present invention.
The outer ring 1 and the inner ring 3 are connected with a lower structure, and the middle ring 2 is connected with an upper structure.
A sealing strip 6 is arranged between the outer ring 1 and the middle ring 2, the sealing strip 6 is arranged between the middle ring 2 and the inner ring 3, and the sealing strip 6 plays a role in sealing the rotation between the outer ring 1 and the middle ring 2 of the slewing bearing and plays a role in sealing the rotation between the middle ring 2 and the inner ring 3.
The embodiment of the utility model provides an among the three-ring slewing bearing structure, slewing bearing can be through the drive of outer lane 1, or through the drive of inner circle 3, and slewing bearing's drive mode can be other drive modes such as gear drive, chain drive, or worm and gear drive, and it is corresponding, have corresponding structure to be used for driving slewing bearing at slewing bearing's outer lane 1's lateral surface or inner circle 3's medial surface. As shown in fig. 2, when the slewing bearing adopts gear transmission, and is driven by the outer ring 1 of the slewing bearing, a gear is processed on the outer side surface of the outer ring 1 and is used for meshing with a gear of a driving device. It should be noted that, with the three-ring slewing bearing provided by the embodiment of the present invention, the change in the driving manner of the slewing bearing does not affect the protection scope of the present invention.
The embodiment of the utility model provides a three-ring slewing bearing structure adopts the integrated configuration of outer lane 1, well circle 2, inner circle 3 and multiunit roller 4, has reduced the size of roller and backup ring, has optimized slewing bearing's structure to through the density of arranging that increases connecting bolt on slewing bearing, use high strength connecting bolt to fix bearing equipment, improved slewing bearing's bearing capacity. Use the embodiment of the utility model provides a three-ring slewing bearing when bearing large-tonnage hoist or other large equipment, need not the structure size of increase slewing bearing roller and backup ring to can satisfy the bearing requirement of the equipment that bears, make slewing bearing and the equipment that bears structurally have high matching degree.
Next, the assembly method of the three-ring slewing bearing structure provided by the present invention will be described in detail by taking the roller 4 as a cylindrical roller as an example, and specifically,
a, mounting a lower middle ring 22;
B. arranging a lower layer cylindrical roller, wherein the axis of the lower layer cylindrical roller is parallel to the plane where the slewing bearing is located;
C. an outer ring 1 is arranged on the outer side of a lower middle ring 22, an inner ring 3 is arranged on the inner side of the lower middle ring 22, a sealing strip 6 is arranged between the outer ring 1 and a middle ring 2, and the sealing strip 6 is arranged between the middle ring 2 and the inner ring 3;
D. arranging a middle-layer cylindrical roller, wherein the axis of the middle-layer cylindrical roller is vertical to the plane of the slewing bearing; arranging an upper layer cylindrical roller, wherein the axis of the upper layer cylindrical roller is parallel to the plane of the slewing bearing;
E. installing an upper middle ring 21, screwing a screw 5 into the upper middle ring 21 from a lower middle ring 22, and combining the upper middle ring 21 and the lower middle ring 22 into a middle ring 2; a sealing strip 6 is arranged between the outer ring 1 and the middle ring 2, and the sealing strip 6 is arranged between the middle ring 2 and the inner ring 3;
F. and finishing the assembly of the three-ring type slewing bearing.
The embodiment of the utility model provides an in, after the equipment of three ring type slewing bearing was accomplished, the substructure is connected with inner circle 3 to outer lane 1, and superstructure is connected to well circle 2, through using the embodiment of the utility model provides a slewing bearing structure satisfies large-tonnage hoist or other main equipment to slewing bearing's structure and bears the requirement.
The embodiment of the utility model provides a still provide the mechanical equipment of an above-mentioned three ring type slewing bearing structure of application, this mechanical equipment includes other mechanical equipment such as hoist, excavator, concrete pump truck.
The embodiment of the utility model provides a three-ring type slewing bearing structure through adopting multiunit roller and a plurality of backup ring, has reduced the size of roller and backup ring, has optimized slewing bearing's structure, has improved slewing bearing's bearing capacity to easily assembly processing, application range is big.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.
Claims (6)
1. A three-ring slewing bearing structure comprising: an outer ring (1), an inner ring (3) and a roller (4), characterized in that,
the anti-theft device is characterized by further comprising a middle ring (2), wherein the outer ring (1) is positioned on the outer side of the middle ring (2), the inner ring (3) is positioned on the inner side of the middle ring (2), and the middle ring (2) rotates relative to the outer ring (1) and the inner ring (3) through rollers (4); wherein, the middle ring (2) is a combined structure, and the middle ring (2) is composed of an upper middle ring (21) and a lower middle ring (22).
2. A three-ring slewing bearing structure according to claim 1, further comprising screws (5),
the upper middle ring (21) and the lower middle ring (22) are connected through a screw (5).
3. The slewing bearing structure of claim 1,
the roller (4) is a cylindrical roller.
4. A three-ring slewing bearing structure according to claim 3,
three layers of rollers (4) are distributed between the outer ring (1) and the middle ring (2), and three layers of rollers (4) are distributed between the middle ring (2) and the inner ring (3); wherein,
the axial lines of the upper layer cylindrical rollers and the lower layer cylindrical rollers are parallel to the plane of the slewing bearing, and the axial lines of the middle layer cylindrical rollers are perpendicular to the plane of the slewing bearing.
5. The slewing bearing structure of claim 1,
the outer ring (1) and the inner ring (3) are connected with a lower structure, and the middle ring (2) is connected with an upper structure.
6. A three-ring slewing bearing structure according to claim 1, further comprising a seal (6),
is arranged between the outer ring (1) and the middle ring (2) and/or between the inner ring (3) and the middle ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010292510060U CN201647860U (en) | 2010-02-08 | 2010-02-08 | Three-ring slewing bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010292510060U CN201647860U (en) | 2010-02-08 | 2010-02-08 | Three-ring slewing bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201647860U true CN201647860U (en) | 2010-11-24 |
Family
ID=43113090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010292510060U Expired - Fee Related CN201647860U (en) | 2010-02-08 | 2010-02-08 | Three-ring slewing bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201647860U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720759A (en) * | 2012-01-01 | 2012-10-10 | 洛阳隆达轴承有限公司 | Slewing bearing |
| WO2013078907A1 (en) * | 2011-11-28 | 2013-06-06 | 中联重科股份有限公司 | Slewing bearing and mechanical device |
-
2010
- 2010-02-08 CN CN2010292510060U patent/CN201647860U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078907A1 (en) * | 2011-11-28 | 2013-06-06 | 中联重科股份有限公司 | Slewing bearing and mechanical device |
| CN102720759A (en) * | 2012-01-01 | 2012-10-10 | 洛阳隆达轴承有限公司 | Slewing bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20130208 |