CN203570855U - Dust prevention structure for large-bearing-capacity slewing bearing - Google Patents
Dust prevention structure for large-bearing-capacity slewing bearing Download PDFInfo
- Publication number
- CN203570855U CN203570855U CN201320423243.7U CN201320423243U CN203570855U CN 203570855 U CN203570855 U CN 203570855U CN 201320423243 U CN201320423243 U CN 201320423243U CN 203570855 U CN203570855 U CN 203570855U
- Authority
- CN
- China
- Prior art keywords
- washer
- ring
- seat ring
- housing
- blowout patche
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 title abstract description 7
- 230000002265 prevention Effects 0.000 title abstract 4
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 claims description 5
- 241000271460 Crotalus cerastes Species 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a dust prevention structure for a large-bearing-capacity slewing bearing. The dust prevention structure for the large-bearing-capacity slewing bearing is characterized by comprising a housing washer, an upper shaft washer, a lower shaft washer and cylinder rolling bodies, wherein annularly distributed housing washer installation holes are drilled uniformly in the housing washer, the housing washer installation holes penetrate through the upper and lower end faces of the housing washer, and the inner side surface of the housing washer is an annular bulge structure; two upper raceways are formed between two upper raceway grooves of the upper shaft washer and the housing washer, and an inner ring of the upper shaft washer is an inner ring gear; two annular lower raceway grooves are formed in the reversed-T-shaped upper end face of the lower shaft washer, and two lower raceways are formed between the lower raceway grooves and the housing washer; annularly distributed shaft ring installation holes are correspondingly arranged on the upper shaft washer and the lower shaft washer; a ring-shaped gap A is formed on the upper edge of the outer surface of the small end of the reversed-T-shaped upper end face of the lower shaft washer, an annular gap B is formed correspondingly on the annularly bulged inner side surface of the housing washer, a lateral raceway is formed by the annular gap A, the annular gap B and the outer side surface of the upper shaft washer, and the cylinder rolling bodies are arranged in the upper, lower and lateral raceways. The dust prevention structure has the advantages that a double-raceway structure is arranged the upper shaft washer and the housing washer as well as between the lower shaft washer and the housing washer, so that the axial bearing capacity of the slewing bearing is greatly increased, the working is stable and reliable, and the structure of the gaps on the side surfaces of the lower shaft washer and the housing washer help to smoothly locate the rolling body in the lateral raceway, so as to achieve radial loading.
Description
Technical field
The utility model relates to a kind of bearing, particularly a kind of dustproof construction of large bearing capacity pivoting support.
Background technique
Pivoting support is a kind of large size bearing that can bear combined load, can bear simultaneously larger axially, radial load and tilting moment.It has the formations such as Internal and external cycle, rolling element, pivoting support is applied very extensive in real industry, by people, be called: " joint of machine " is between two articles, to need to do relative rotation motion, need again to bear the necessary important transmission part of machinery of axial force, radial force, tilting moment simultaneously.Pivoting support is widely used in industries such as ship equipment, engineering machinery, light industry and machinery, metallurgical machinery, medical machinery, industrial machineries.In wind-power electricity generation, wind-driven generator is worked throughout the year in the wild, and it is in use directly exposed to rain, snow and sunlight and descends, and has Environmental Conditions severe, the feature that maintenance cost is high.Therefore to all having proposed very high requirement in the pivoting support operation stability of generator set, impact resistance, working life.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of dustproof construction of large bearing capacity pivoting support, can effectively prevent that the dust granule in environment from entering, and improves the operation stability under rugged environment.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of dustproof construction of large bearing capacity pivoting support, comprise seat ring, upper blowout patche, lower blowout patche and cylinder rolling element, on seat ring, be evenly drilled with the seat ring mounting hole distributing ringwise, and seat ring mounting hole connects the upper and lower end face of seat ring, and the inner side surface of seat ring is an annular protrusion structure; Between upper blowout patche and the annular protrusion of seat ring, form upper raceway, the inner ring of upper blowout patche is ring gear, forms lower raceway between lower blowout patche and seat ring, the annular protrusion side of seat ring and upper and lower blowout patche outer side surface between form and sidewinder; Described upper and lower, place cylinder rolling element in sidewindering; It is characterized in that: the upper-end surface of described seat ring is provided with a circle annular protrusion; The outer surface of upper of described upper blowout patche has a ring annular groove A, in described circular groove A, inlays dust-proof seal ring A, and the radial outside that circular groove A props up the upper-end surface of seat ring and is positioned at annular protrusion is stretched out in the outer end of described dust-proof seal ring A; The side surface bottom of described seat ring has a ring annular groove B, in described circular groove B, inlays dust-proof seal ring B, and the outer end of dust-proof seal ring B props up the lower surface of lower blowout patche.
The utility model has the advantage of: on seat ring and upper blowout patche, dust-proof seal ring is set, can effectively prevent that extraneous dust granule from entering in pivoting support, and the annular protrusion of seat ring upper-end surface is arranged on the inner side of dust-proof seal ring A, guarantee that the dust impurity that is adsorbed on seat ring upper-end surface enters pivoting support, the functional reliability that improves pivoting support, reduces maintenance greatly.
Accompanying drawing explanation
Fig. 1 is the utility model large bearing capacity pivoting support structural representation.
Fig. 2 is partial enlarged drawing A in Fig. 1.
Embodiment
As shown in Figure 1, comprise seat ring 1, upper blowout patche 2, lower blowout patche 3, blowout patche mounting hole 4 and cylinder rolling element.
Upper surface at above-mentioned seat ring 1 annular protrusion has raceway groove a in twice annular.
The cross section of upper blowout patche 2 is " T " character form structure, in the large end lower surface of " T " font and the twice of seat ring 1, between raceway groove a, form raceway in twice, the inner ring of upper blowout patche 2 is ring gear structure, can rotate certain angle by driving with actuation gear and then the upper blowout patche 2 of driving of this ring gear engagement.
The cross section of lower blowout patche 3 is for falling " T " character form structure, has raceway groove b under twice annular falling the large end upper surface of " T " font, forms raceway under twice between described lower raceway groove b and seat ring 1; The corresponding blowout patche mounting hole 4 distributing ringwise that is provided with on upper blowout patche 2, lower blowout patche 3.
The small end outer surface upper edge of " T " font at lower blowout patche 3 has a ring v notch v A, inner side surface correspondence at seat ring 1 annular protrusion has an annular breach B, between the outer side surface of this annular breach A and annular breach B and upper blowout patche 2, coordinate one of common formation to sidewinder, at above-mentioned upper raceway, lower raceway and in sidewindering, place and place respectively cylinder rolling element 5, cylinder rolling element 6 and cylinder rolling element 7.
Wherein, as shown in Figure 2, in the upper-end surface of seat ring 1, be provided with a circle annular protrusion c; The outer surface of upper of described upper blowout patche has a ring annular groove A, in described circular groove A, inlays dust-proof seal ring A8, and the radial outside that circular groove A props up the upper-end surface of seat ring and is positioned at annular protrusion is stretched out in the outer end of described dust-proof seal ring A8; The side surface bottom of seat ring 1 has a ring annular groove B, inlays dust-proof seal ring B9 in circular groove B, and the outer end of dust-proof seal ring B9 props up the lower surface of lower blowout patche 2.
Claims (1)
1. the dustproof construction of a large bearing capacity pivoting support, comprise seat ring, upper blowout patche, lower blowout patche and cylinder rolling element, on seat ring, be evenly drilled with the seat ring mounting hole distributing ringwise, and the upper and lower end face of seat ring mounting hole perforation seat ring, the inner side surface of seat ring is an annular protrusion structure; Between upper blowout patche and the annular protrusion of seat ring, form upper raceway, the inner ring of upper blowout patche is ring gear, forms lower raceway between lower blowout patche and seat ring, the annular protrusion side of seat ring and upper and lower blowout patche outer side surface between form and sidewinder; Described upper and lower, place cylinder rolling element in sidewindering; It is characterized in that: the upper-end surface of described seat ring is provided with a circle annular protrusion; The outer surface of upper of described upper blowout patche has a ring annular groove A, in described circular groove A, inlays dust-proof seal ring A, and the radial outside that circular groove A props up the upper-end surface of seat ring and is positioned at annular protrusion is stretched out in the outer end of described dust-proof seal ring A; The side surface bottom of described seat ring has a ring annular groove B, in described circular groove B, inlays dust-proof seal ring B, and the outer end of dust-proof seal ring B props up the lower surface of lower blowout patche.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320423243.7U CN203570855U (en) | 2013-07-17 | 2013-07-17 | Dust prevention structure for large-bearing-capacity slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320423243.7U CN203570855U (en) | 2013-07-17 | 2013-07-17 | Dust prevention structure for large-bearing-capacity slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570855U true CN203570855U (en) | 2014-04-30 |
Family
ID=50538587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320423243.7U Expired - Fee Related CN203570855U (en) | 2013-07-17 | 2013-07-17 | Dust prevention structure for large-bearing-capacity slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106820696A (en) * | 2017-01-20 | 2017-06-13 | 河北经贸大学 | A kind of outdoor seat |
| CN109667833A (en) * | 2019-01-25 | 2019-04-23 | 董倩 | A kind of new-type rolling bearing |
-
2013
- 2013-07-17 CN CN201320423243.7U patent/CN203570855U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106820696A (en) * | 2017-01-20 | 2017-06-13 | 河北经贸大学 | A kind of outdoor seat |
| CN109667833A (en) * | 2019-01-25 | 2019-04-23 | 董倩 | A kind of new-type rolling bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20160717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |