CN201973089U - Double-track slewing bearing - Google Patents
Double-track slewing bearing Download PDFInfo
- Publication number
- CN201973089U CN201973089U CN2011200243306U CN201120024330U CN201973089U CN 201973089 U CN201973089 U CN 201973089U CN 2011200243306 U CN2011200243306 U CN 2011200243306U CN 201120024330 U CN201120024330 U CN 201120024330U CN 201973089 U CN201973089 U CN 201973089U
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- raceway
- outer rim
- ring
- steel ring
- cross
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Abstract
A double-track slewing bearing belongs to the technical field of slewing bearings, and comprises an inner steel ring, an outer steel ring, a plurality of first and second steel balls, and a plurality of first and second isolating blocks, wherein first and second tracks with round sections are respectively arranged at the upper part and the lower part between the inner steel ring and the outer steel ring and are respectively formed by combining two circles of grooves with semicircular sections at the outer surface of the inner steel ring and two circles of grooves with semicircular sections at the inner surface of the outer steel ring, the first and the second steel balls are respectively arranged in the first and the second tracks, the first and the second isolating blocks are respectively arranged between the adjacent first steel balls and between the adjacent second steel balls, and sealing rings are respectively arranged on the upper end and the lower end between the inner steel ring and the outer steel ring. In the double-track slewing bearing, the first and the second tracks with the round sections are respectively arranged at the upper part and the lower part between the inner steel ring and the outer steel ring, and the first and the second steel balls are arranged respectively in the first and the second tracks, therefore, the slewing bearing is beneficial to enhancement on the axial and radial load carrying capacity, and compared with other mode, for the compared with other mode, the structure is simple, and blank materials can be saved.
Description
Technical field
The utility model relates to the pivoting support technical field, relates in particular to a kind of pair of raceway pivoting support.
Background technique
Pivoting support is a kind of large-scale or super-huge gear ring, multi-functional eyelet, oil circuit and seal ring of having, and can bear the combination bearing of axial force, radial force and tilting moment simultaneously.
The main body of pivoting support is made of inside and outside two steel rings, and the circle that the medium line of binding site surrounds between two circles is called " center circle ".Center circle is the important indicator of demarcating the pivoting support specification, measuring the pivoting support size.Respectively establish a semi-circular grooves because of the cylindrical shape raceway of pivoting support at inside and outside circle junction plane and combine, so the central point of raceway and steel ball thereof is all on center circle.Present employed pivoting support mostly is the pivoting support of wall scroll raceway, and its raceway is arranged according to center circle, but the supporting force of the pivoting support of wall scroll raceway is relatively weaker when running into large lifting equipment.
The model utility content
The purpose of this utility model is to provide a kind of pair of raceway pivoting support, and its supporting force is big, simple in structure, the saving blank.
To achieve these goals, technical solution of the present utility model is: a kind of pair of raceway pivoting support, in comprising, outer rim, several first steel balls and several first spacing blocks, in described, be provided with the cross section between the outer rim and be the first circular raceway, described first raceway is that semicircular groove and outer rim internal surface one ring cross-section are that semicircular groove combination forms by interior steel ring outer surface one ring cross-section, described first steel ball is arranged in described first raceway, between adjacent described first steel ball one first spacing block is set, wherein also comprise several second steel balls and several second spacing blocks, described first raceway is positioned at, top between the outer rim, in described, bottom between the outer rim is provided with the cross section and is the second circular raceway, described second raceway is that semicircular groove and outer rim internal surface one ring cross-section are that semicircular groove is formed by interior steel ring outer surface one ring cross-section, described second steel ball is arranged in described second raceway, between adjacent described second steel ball one second spacing block is set, described in, on between the outer rim, the lower end is respectively arranged with first, two seal rings.
The two raceway pivoting supports of the utility model, the outer surface that the internal surface of wherein said interior steel ring is provided with gear ring or outer rim is provided with gear ring.
The two raceway pivoting supports of the utility model, wherein when interior steel ring is provided with gear ring, described outer rim radially is respectively equipped with and vertical first and second filling hole that communicates of first and second raceway, the aperture of described first and second filling hole is respectively greater than the cross-sectional aperture of first and second raceway, be separately installed with first and second plug on described first and second filling hole, described first and second plug is fixed on the outer rim by the pin of wearing that is passed by the outer rim upper end respectively.
The two raceway pivoting supports of the utility model, wherein when outer rim is provided with gear ring, steel ring radially is respectively equipped with and vertical third and fourth filling hole that communicates of first and second raceway in described, the aperture of described third and fourth filling hole is respectively greater than the cross-sectional aperture of first and second raceway, be respectively equipped with third and fourth plug on described third and fourth filling hole, described third and fourth plug is fixed on the interior steel ring by the pin of wearing that is passed by interior steel ring upper end respectively.
The two raceway pivoting supports of the utility model, wherein said first and second filling hole along level to being interspersed.
The two raceway pivoting supports of the utility model, the diameter of wherein said first and second steel ball is respectively than the little 1-3 silk of first and second groove-section diameter.
After adopting such scheme, the two raceway pivoting supports of the utility model are provided with first and second raceway by the upper and lower part between inside and outside steel ring, and first and second steel ball is arranged at respectively in first and second raceway, such pivoting support helps strengthening the axial and radial force of pivoting support, it is simple in structure, saves blank material.
Description of drawings
Fig. 1 is the structural representation of the two raceway pivoting supports of the utility model;
Fig. 2 is the steel ball of the two raceway pivoting supports of the utility model and the distributed architecture schematic representation between the spacing block;
Fig. 3 is another example structure schematic representation of the two raceway pivoting supports of the utility model.
Below in conjunction with accompanying drawing, the utility model is described further by embodiment.
Embodiment
See also shown in Figure 1, steel ring 1 in the two raceway pivoting supports of the utility model comprise, outer rim 2, several first steel balls 3, several first spacing blocks 4, several second steel ball 6 and several second spacing blocks 7, the outer surface of outer rim 2 is provided with gear ring 23, top between interior steel ring 1 and the outer rim 2 is provided with the cross section and is the first circular raceway 5, first raceway 5 is that semicircular groove and outer rim 2 internal surfaces one ring cross-section are that semicircular groove correspondence combines by interior steel ring 1 outer surface one ring cross-section, first steel ball 3 is arranged in first raceway 5, and the diameter of first steel ball 3 is than the little 1-3 silk of diameter of section of first raceway 5;
In conjunction with shown in Figure 2, between adjacent first steel ball 3 one first spacing block 4 is set, bottom between interior steel ring 1 and the outer rim 2 is provided with the cross section and is the second circular raceway 8, second raceway 8 is that semicircular groove and outer rim 2 internal surfaces one ring cross-section are that semicircular groove correspondence combines by interior steel ring 1 outer surface one ring cross-section, second steel ball 6 is arranged in second raceway 8, between adjacent second steel ball 6 one second spacing block 7 is set, the upper and lower end between interior steel ring 1 and the outer rim 2 is respectively arranged with first seal ring 9 and second seal ring 10.Interior steel ring 1 radially is respectively equipped with and first raceway 5 and second raceway, 8 vertical the 3rd filling hole 11 that communicates and the 4th filling holes 12, the aperture of the 3rd filling hole 11 is greater than the cross-sectional aperture of first raceway 5, the 3rd filling hole 11 is provided with the 3rd plug 50, the aperture of the 4th filling hole 12 is greater than the cross-sectional aperture of second raceway 8, the 4th filling hole 12 is provided with the 4th plug 60, the three plugs 50 and the 4th plug 60 is fixed on the interior steel ring 1 by the pin 70 of wearing that is passed by interior steel ring 1 upper end respectively.
Consult shown in Figure 3, another example structure schematic representation of novel pair of raceway pivoting support of this reality, structure difference among itself and above-mentioned Fig. 1 is that the internal surface of interior steel ring 1 is provided with gear ring 13, outer rim 2 no gear rings, outer rim 2 radially is respectively equipped with and first raceway 5 and second raceway, 8 vertical first filling hole 21 that communicates and second filling holes 22, the aperture of first filling hole 21 is greater than the cross-sectional aperture of first raceway 5, first plug 20 is installed on first filling hole 22, the aperture of second filling hole 22 is greater than the cross-sectional aperture of second raceway 8, second plug, 30, the first plugs 20 and second plug 30 are installed on second filling hole 22 to be fixed on the outer rim 2 by the pin 40 of wearing that is passed by outer rim 2 upper ends respectively.
When the utility model is installed, being provided with gear ring 23 with outer rim 2 is example, interior steel ring 1 and outer rim 2 are installed, first steel ball 3 and first spacing block 4 are packed in first raceway 5 by the 3rd filling hole 11, second steel ball 6 and second spacing block 7 are packed in second raceway 8 by the 4th filling hole 12, at last the 3rd plug 50 and the 4th plug 60 are fixed on the interior steel ring 1 by the pin 70 of wearing that is passed by interior steel ring 1 upper end respectively, installation like this, if when dismounting in a manner described reverse operating get final product, therefore this pair raceway pivoting support is simple in structure, save blank material, be convenient to installing/dismounting and maintenance, this pair raceway pivoting support structure also has the following advantages:
1, along center circle two raceways are set vertically, help strengthening pivoting support axially and radial force, help pivoting support and operate steadily, the dynamic balancing of little effect pivoting support and sensitivity are adopted during the great type pivoting support of suitable design.
2, along center circle two raceways are set vertically, more simple in structure than other modes, save blank material, be convenient to gold machining and heat treatment, assemble easily, be easy to the precision and the quality of testing product.
The above embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineers and technicians in related domain make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (6)
1. two raceway pivoting support, in comprising, outer rim (1,2), several first steel balls (3) and several first spacing blocks (4), in described, outer rim (1,2) be provided with the cross section between and be circular first raceway (5), described first raceway (5) is that semicircular groove and outer rim (2) internal surface one ring cross-section are that semicircular groove combination forms by interior steel ring (1) outer surface one ring cross-section, described first steel ball (3) is arranged in described first raceway (5), one first spacing block (4) is set between adjacent described first steel ball (3), it is characterized in that: also comprise several second steel balls (6) and several second spacing blocks (7), described first raceway (5) is positioned at, outer rim (1,2) top between, in described, outer rim (1,2) bottom between is provided with the cross section and is circular second raceway (8), described second raceway (8) is that semicircular groove and outer rim (2) internal surface one ring cross-section are that semicircular groove is formed by interior steel ring (1) outer surface one ring cross-section, described second steel ball (6) is arranged in described second raceway (8), one second spacing block (7) is set between adjacent described second steel ball (6), in described, outer rim (1,2) between, the lower end is respectively arranged with first, two seal rings (9,10).
2. as claimed in claim 1 pair of raceway pivoting support is characterized in that: the outer surface that the internal surface of described interior steel ring (1) is provided with gear ring (13) or outer rim (2) is provided with gear ring (23).
3. as claimed in claim 2 pair of raceway pivoting support, it is characterized in that: when interior steel ring (1) is provided with gear ring (13), described outer rim (2) radially is respectively equipped with and first, two raceways (5,8) vertically communicate first, two filling holes (21,22), described first, two filling holes (21,22) aperture is respectively greater than first, two raceways (5,8) cross-sectional aperture, described first, two filling holes are separately installed with first on (21,22), two plugs (20,30), described first, two plugs (20,30) are fixed on the outer rim (2) by the pin (40) of wearing that is passed by outer rim (2) upper end respectively.
4. as claimed in claim 2 pair of raceway pivoting support, it is characterized in that: when outer rim (2) is provided with gear ring (23), steel ring (1) radially is respectively equipped with and first in described, two raceways (5,8) vertically communicate the 3rd, four filling holes (11,12), the described the 3rd, four filling holes (11,12) aperture is respectively greater than first, two raceways (5,8) cross-sectional aperture, the described the 3rd, four filling holes are respectively equipped with the 3rd on (11,12), four plugs (50,60), the described the 3rd, four plugs (50,60) are fixed on the interior steel ring (1) by the pin (70) of wearing that is passed by interior steel ring (1) upper end respectively.
5. as claim 3 or 4 described pairs of raceway pivoting supports, it is characterized in that: described first and second filling hole (21,22) along level to being interspersed.
6. as claimed in claim 5 pair of raceway pivoting support is characterized in that: the diameter of described first and second steel ball (3,6) is respectively than the little 1-3 silk of first and second raceway (5,8) diameter of section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200243306U CN201973089U (en) | 2011-01-25 | 2011-01-25 | Double-track slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200243306U CN201973089U (en) | 2011-01-25 | 2011-01-25 | Double-track slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973089U true CN201973089U (en) | 2011-09-14 |
Family
ID=44578192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200243306U Expired - Fee Related CN201973089U (en) | 2011-01-25 | 2011-01-25 | Double-track slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201973089U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836065A (en) * | 2014-03-24 | 2014-06-04 | 常州神力热喷涂技术有限公司 | Bearing of large rotary platform truck |
| CN111336176A (en) * | 2020-04-28 | 2020-06-26 | 安徽晨光精工机电科技有限公司 | Split structure type slewing bearing |
-
2011
- 2011-01-25 CN CN2011200243306U patent/CN201973089U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836065A (en) * | 2014-03-24 | 2014-06-04 | 常州神力热喷涂技术有限公司 | Bearing of large rotary platform truck |
| CN111336176A (en) * | 2020-04-28 | 2020-06-26 | 安徽晨光精工机电科技有限公司 | Split structure type slewing bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ANHUI GONGYUAN ROBOT TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ANHUI ZONGCHEN SLEWING RING CO., LTD. Effective date: 20140724 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 246704 ANQING, ANHUI PROVINCE TO: 230088 HEFEI, ANHUI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140724 Address after: 1 research building, No. 230088, Fu Fang Plaza, 7 Hongfeng Road, Hefei hi tech Zone, Anhui Patentee after: Anhui Robot Technology Co., Ltd. Address before: 246704, No. 227, Changjiang Road, Zongyang County, Anqing, Anhui Patentee before: Anhui Zongchen Slewing Ring Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20150125 |
|
| EXPY | Termination of patent right or utility model |