CN101699085B - Turntable bearing for large-size celestial observation device - Google Patents
Turntable bearing for large-size celestial observation device Download PDFInfo
- Publication number
- CN101699085B CN101699085B CN2009102093175A CN200910209317A CN101699085B CN 101699085 B CN101699085 B CN 101699085B CN 2009102093175 A CN2009102093175 A CN 2009102093175A CN 200910209317 A CN200910209317 A CN 200910209317A CN 101699085 B CN101699085 B CN 101699085B
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- inner ring
- big
- hole
- raceway
- bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/188—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with at least one row for radial load in combination with at least one row for axial load
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
- F16C19/505—Other types of ball or roller bearings with the diameter of the rolling elements of one row differing from the diameter of those of another row
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a turntable bearing for a large-size celestial observation device, comprising an outer ring (1), an O-shaped seal ring (2), a holder (3), a large ball (4), a small ball (5), a round clamp (6), an inner ring (7), a dust shield (8) and a round baffle plate (9). The turntable bearing adopts a double-reduced ball structure and a large contact angle structure, the large ball and the small ball respectively bear axial and radial load and ensures the axial rigidity of the turntable bearing, and the small ball adopts a straight-raceway full ball structure, increases radial carrying capacity and satisfies the requirements of a low friction moment simultaneously; the dust shield and the O-shaped seal ring are adopted to seal, a raceway contact point is provided with a radial lubricating hole to indirectly lubricate the turntable bearing, and the turntable bearing can be more sufficiently lubricated and has better lubricating and sealing performance. When the turntable bearing is installed, a bracket shaft is matched with a smallest spigot of the inner ring and is fixed on a bracket (11), and a rotating table (10) is fixed on the spigot of the upper end of the outer ring to regulate a direction angle.
Description
Technical field
The invention belongs to technical field of bearings, refer more particularly to a kind of turntable bearing that is used for large-size celestial observation device.
Background technique
The matching used turntable bearing precision prescribed of large-size celestial observation device is very high, will grow working life, and can bear the bigger axial connected load that radially reaches, satisfy also require turntable bearing to have higher rigidity under the above-mentioned condition and lower friction torque and friction torque even, and have good lubricated and sealability.
Have above-mentioned technical specifications and yet there are no report for the applied turntable bearing of large-size celestial observation device.
Summary of the invention
For addressing the above problem, the present invention has designed the matching used turntable bearing of a kind of large-size celestial observation device, this turntable bearing adopts the double row reducing spherical structure, double row reducing ball bears thrust load and radial load and can guarantee axial rigidity and have low friction moment, satisfies the usage requirement of large-size celestial observation device.
For achieving the above object, the present invention adopts following technological scheme:
The described turntable bearing that is used for large-size celestial observation device comprises outer ring, O RunddichtringO, retainer, big ball, bead, round clamp, inner ring, dust-proof cover and circle baffle plate and screw; Wherein inner ring adopts the two raceway designs of reducing, be that the angle that contacts that the big raceway of inner ring is installed point of contact and bearing radial plane between big ball and big ball and the big raceway of inner ring is 85 °, the little raceway of inner ring is installed bead and the flat raceway of the rectangular equilateral shape of the little raceway of inner ring, the length of the flat raceway of the equilateral shape in right angle equals little bulb diameter, and bead mainly bears radial load; Big ball adopts big wrapping angle with contacting of the big raceway of inner ring, also bears certain radial load and guarantee the axial rigidity of bearing when bearing thrust load; Bead adopts the full ball mode of flat raceway, satisfy low friction moment in the bearing capacity improving radially, the little raceway of inner ring is arranged on inner ring small boss upper-end surface outer circumferential side, and behind the bead of packing into, round clamp is fixed on the upper-end surface of inner ring small boss by screw, leave the gap between round clamp and the bead so that the bead rotation flexibly and spacing to bead; The big big raceway of ball is arranged on inner ring boss two step end faces and in the spherical pocket hole of by retainer big ball being pinned behind the big ball of packing at retainer, the spacing of retainer then implemented by the circle baffle plate, the circle baffle plate plays protective action by screw at the big boss external cylindrical surface of inner ring and to bearing interior space, the O RunddichtringO is set so that this gap location is implemented sealing in the circle damper shaft to seam and the big boss of inner ring upper-end surface gap location; The aperture surface of outer ring is to be different step-like toroidal surfaces, the rubbing surface design that the outer ring contacts with big ball has big raceway, point of contact between the big raceway in outer ring and big ball is 85 ° with the angle that contacts of bearing radial plane, 180 ° of settings of the big raceway inversion symmetry of big raceway in outer ring and inner ring, the external diameter of the minimum diameter of outer ring＞inner ring small boss upper-end surface circular radial cylinder, the seam end face in the upper end, outer ring has the dust-proof cover of reverse gibbous shape by screw attachment.
The described turntable bearing that is used for large-size celestial observation device, that the axial end of big boss one side of its inner ring also is provided with is identical with large-size celestial observation device bearing mounting hole aperture, hole count equates and with countersunk head through hole and four tapped through holes that are used to lift inner ring of bearing mounting hole pitch-row diameter unanimity, and the symmetrical distribution consistent of this tapped through hole with the pitch-row diameter of countersunk head through hole; The screw hole circumference uniform distribution that is used for fixing round clamp is ten, this screw hole pitch-row diameter＞countersunk head through hole pitch-row diameter; Inner ring maximum outside diameter cylndrical surface processing one location step, fixing circle baffle plate on this step, inner ring maximum outside diameter=circle baffle plate external diameter, the screw hole that is used for fixing round baffle plate is ten at the external diameter cylndrical surface of positioning step circumference uniform distribution; Bottom end face at the inner ring maximum outside diameter is provided with the minimum seam of inner ring, the minimum seam internal diameter of inner ring=bearing seam external diameter.
The described turntable bearing that is used for large-size celestial observation device, the screw hole that its upper end, outer ring seam end face is used for fixing dust-proof cover is uniform on radial circumference to be ten; The outer round surface of outer ring has not isometrical cylndrical surface, and the maximum outside diameter cylndrical surface of outer ring is a finish facing, and the machining accuracy of finish facing reaches 7 grades, and its surface roughness is 0.8 and as the wall-attached surface of measuring grating; The minimum outer diameter cylndrical surface of outer ring is provided with straight-through lubrication hole, and the center line of this lubrication hole is higher than the diameter center after bead is installed, and lubrication hole leads to the circular groove that internal diameter cylndrical surface, outer ring is provided with, for bead provides certain lubricated space; The outer ring radial end face be provided with that, hole count identical with large-size celestial observation device turntable mounting hole aperture equates and with countersunk head through hole and three tapped through holes that are used to lift the outer ring of turntable mounting hole pitch-row diameter unanimity, this tapped through hole is consistent with the pitch-row diameter of countersunk head through hole and be 120 ° of distributions.
The described turntable bearing that is used for large-size celestial observation device, its retainer adopt nylon segmented retainer, and the spherical pocket hole of nylon segmented retainer can be pinned big ball and be made the low reposefully friction rotation of big ball.
Because adopt aforesaid technological scheme, the present invention has following superiority:
1, the present invention adopts the double row reducing spherical structure, and big ball and bead can bear thrust load and radial load respectively.
2, big ball of the present invention adopts big wrapping angle with contacting of raceway, when bearing thrust load, also bears certain radial load, and can guarantee the axial rigidity of turntable bearing.
3, bead of the present invention adopts the full spherical structure of straight raceway, when improving radially bearing capacity, satisfies the requirement of low friction moment.
4, the present invention axially adopts the dust-proof cover sealing, radially adopts the sealing of O RunddichtringO, is respectively arranged with radial lubrication holes two raceway contact point, can implement to lubricate indirectly to turntable bearing, makes turntable bearing lubricated more abundant, has good lubricated and sealability.
5, the present invention can satisfy the usage requirement of large-size celestial observation device.
Description of drawings
Fig. 1 is a symplex structure of the present invention left side half way around dish bearing schematic representation;
Fig. 2 is that turntable bearing of the present invention is is specifically installed and used schematic representation;
Among the above-mentioned figure: the 1-outer ring; The 2-O RunddichtringO; The 3-retainer; The big ball of 4-; The 5-bead; The 6-round clamp; The 7-inner ring; The 8-dust-proof cover; 9-circle baffle plate; The 10-turntable; The 11-bearing.
Embodiment
In conjunction with Fig. 1, the turntable bearing that is used for large-size celestial observation device of the present invention comprises outer ring 1, O RunddichtringO 2, retainer 3, big ball 4, bead 5, round clamp 6, inner ring 7, dust-proof cover 8 and circle baffle plate 9 and screw, wherein inner ring 7 adopts the two raceway designs of reducing, be that the angle that contacts that inner ring 7 big raceways are installed point of contact and bearing radial plane between big ball 4 and big ball and the big raceway of inner ring is 85 °, inner ring 7 little raceways are installed bead 5 and the flat raceway of the rectangular equilateral shape of the little raceway of inner ring, the length of the flat raceway of the equilateral shape in right angle equals little bulb diameter, and bead 5 mainly bears radial load; Big ball 4 adopts big wrapping angle with contacting of the big raceway of inner ring, also bears certain radial load and guarantee the axial rigidity of bearing when bearing thrust load; Bead 5 adopts the full ball mode of flat raceway, satisfy low friction moment in the bearing capacity improving radially, inner ring 7 little raceways are arranged on inner ring small boss upper-end surface outer circumferential side, and behind the bead of packing into, round clamp 6 is fixed on the upper-end surface of inner ring small boss by screw, leave the gap between round clamp 6 and the bead 5 so that the bead rotation flexibly and spacing to bead; In the big raceway of inner ring is arranged on the radial plane of the big boss of inner ring and big ball is pinned spherical pocket holes at retainer by retainer 3 in big ball 4 backs of packing into, the spacing of retainer 3 then implemented by circle baffle plate 9, circle baffle plate 9 plays protective action by screw at the big boss external cylindrical surface of inner ring and to bearing interior space, O RunddichtringO 2 is set so that this gap location is implemented sealing at circle baffle plate 9 axial seams and the big boss of inner ring upper-end surface gap location; The aperture surface of outer ring 1 is to be different step-like toroidal surfaces, the rubbing surface design that outer ring 1 contacts with big ball has big raceway, point of contact between the big raceway in outer ring and big ball is 85 ° with the angle that contacts of bearing radial plane, 180 ° of settings of the big raceway inversion symmetry of big raceway in outer ring and inner ring, the external diameter of the minimum diameter of outer ring＞inner ring small boss upper-end surface circular radial cylinder, the seam end face in the upper end, outer ring has the dust-proof cover 8 of reverse gibbous shape by screw attachment.
That the axial end of big boss one side of inner ring also is provided with is identical with large-size celestial observation device bearing mounting hole aperture, hole count equates and with countersunk head through hole and four tapped through holes that are used to lift inner ring of bearing 11 mounting hole pitch-row diameter unanimities, the hole count of countersunk head through hole is 12, the aperture is Φ 18mm, and the countersunk head aperture is the dark 20mm of Φ 27mm.Tapped through hole and symmetrical distribution consistent with the pitch-row diameter of countersunk head through hole, the hole count of tapped through hole is four, and the aperture is M20, and the countersunk head aperture is the dark 20mm of Φ 27mm.The screw hole circumference uniform distribution that is used for fixing round clamp 6 is ten, and the screw hole aperture is M6, this screw hole pitch-row diameter＞countersunk head through hole pitch-row diameter; Inner ring 7 maximum outside diameter cylndrical surface processing one location step, fixing circle baffle plate 9 on this step, inner ring maximum outside diameter=circle baffle plate external diameter, the screw hole that is used for fixing round baffle plate 9 is ten at the external diameter end face circumference uniform distribution of positioning step; Bottom end face at inner ring 7 maximum outside diameters is provided with the minimum seam of inner ring, the minimum seam internal diameter of inner ring=bearing seam external diameter.
It is ten that outer ring 1 upper end seam end face is used for fixing the screw hole of dust-proof cover 8 uniform on radial circumference, and the screw hole aperture is M5 dark 15; The outer round surface of outer ring 1 has not isometrical cylndrical surface, and the maximum external cylindrical surface of outer ring 1 is a finish surface, and the machining accuracy of finish surface reaches 7 grades, and surface roughness is 0.8 wall-attached surface as the measurement grating; The minimum outer diameter cylndrical surface of outer ring 1 is provided with straight-through lubrication hole, and the center line of this lubrication hole is higher than the diameter center after bead 5 is installed, and lubrication hole leads to the circular groove that outer ring 1 internal diameter end face is provided with, for bead 5 provides certain lubricated space; In the outer ring 1 axial end be provided with that, hole count identical with large-size celestial observation device turntable mounting hole aperture equates and with countersunk head through hole and three tapped through holes that are used to lift the outer ring of turntable 10 mounting hole pitch-row diameter unanimities, the hole count of countersunk head through hole is 18, the aperture is Φ 18mm, and the countersunk head aperture is the dark 20mm of Φ 27mm.Tapped through hole is consistent with the pitch-row diameter of countersunk head through hole and be 120 ° of distributions, and the aperture of tapped through hole is M18.
Retainer 3 adopts nylon segmented retainer, and the spherical pocket hole of nylon segmented retainer can be pinned big ball and be made the low reposefully friction rotation of big ball.
In conjunction with Fig. 2, bearing 11 cooperates with inner ring 7 minimum seams of the present invention during installation, and by being bolted on the bearing 11, then with turntable 10 by being bolted on the 1 upper end seam of outer ring of the present invention.During work, realize the accurate rotation of turntable 10 azimuth axiss, reach and adjust azimuthal purpose by driving large-size celestial observation device.
Claims (4)
1. turntable bearing that is used for large-size celestial observation device is characterized in that: this turntable bearing comprises outer ring (1), O RunddichtringO (2), retainer (3), big ball (4), bead (5), round clamp (6), inner ring (7), dust-proof cover (8) and justifies baffle plate (9) and screw; Wherein inner ring (7) adopts the two raceway designs of reducing, be that the angle that contacts that the big raceway of inner ring (7) is installed point of contact and bearing radial plane between big ball (4) and big ball and the big raceway of inner ring is 85 °, the little raceway of inner ring (7) is installed bead (5) and the flat raceway of the rectangular equilateral shape of the little raceway of inner ring, the length of the flat raceway of the equilateral shape in right angle equals little bulb diameter, and bead (5) mainly bears radial load; Big ball (4) adopts big wrapping angle with contacting of the big raceway of inner ring, also bears certain radial load and guarantee the axial rigidity of bearing when bearing thrust load; Bead (5) adopts the full ball mode of flat raceway, satisfy low friction moment in the bearing capacity improving radially, the little raceway of inner ring (7) is arranged on inner ring small boss upper-end surface outer circumferential side, and by screw round clamp (6) is fixed on the upper-end surface of inner ring small boss in the bead of packing into (5) back, leave the gap between round clamp (6) and the bead (5) so that the bead rotation is flexible and spacing to bead; In the big raceway of inner ring is arranged on the radial plane of the big boss of inner ring and big ball is pinned spherical pocket hole at retainer by retainer (3) in big ball (4) back of packing into, the spacing of retainer then implemented by circle baffle plate (9), circle baffle plate (9) plays protective action by screw at the big boss external cylindrical surface of inner ring and to bearing interior space, O RunddichtringO (2) is set so that this gap location is implemented sealing in the circle damper shaft to seam and the big boss of inner ring upper-end surface gap location; The aperture surface of outer ring (1) is to be different step-like toroidal surfaces, the rubbing surface design that the outer ring contacts with big ball has big raceway, point of contact between the big raceway in outer ring and big ball is 85 ° with the angle that contacts of bearing radial plane, 180 ° of settings of the big raceway inversion symmetry of big raceway in outer ring and inner ring, the external diameter of the minimum diameter of outer ring＞inner ring small boss circular radial cylinder, the seam end face in the upper end, outer ring has the dust-proof cover (8) of reverse gibbous shape by screw attachment.
2. the turntable bearing that is used for large-size celestial observation device according to claim 1, it is characterized in that: the axial end of big boss one side of inner ring be provided with also that, hole count identical with large-size celestial observation device bearing (11) mounting hole aperture equates and with countersunk head through hole and four tapped through holes that are used to lift inner ring of bearing (11) mounting hole pitch-row diameter unanimity, and the symmetrical distribution consistent of this tapped through hole with the pitch-row diameter of countersunk head through hole; The screw hole circumference uniform distribution that is used for fixing round clamp (6) is ten, this screw hole pitch-row diameter＞countersunk head through hole pitch-row diameter; Inner ring maximum outside diameter cylndrical surface processing one location step, fixing circle baffle plate (9) on this step, inner ring maximum outside diameter=circle baffle plate external diameter, the screw hole that is used for fixing round baffle plate (9) is ten at the external diameter cylndrical surface of positioning step circumference uniform distribution; Bottom end face at the inner ring maximum outside diameter is provided with the minimum seam of inner ring, the minimum seam internal diameter of inner ring=bearing seam external diameter.
3. the turntable bearing that is used for large-size celestial observation device according to claim 1 is characterized in that: it is ten that outer ring upper end seam end face is used for fixing the screw hole of dust-proof cover (8) uniform on radial circumference; The outer round surface of outer ring has not isometrical cylndrical surface, and the maximum external cylindrical surface of outer ring (1) is a finish facing, and the machining accuracy of finish facing reaches 7 grades, and its surface roughness is 0.8 and as the wall-attached surface of measuring grating; The minimum outer diameter cylndrical surface of outer ring is provided with straight-through lubrication hole, and the center line of this lubrication hole is higher than the diameter center after bead is installed, and lubrication hole leads to the circular groove that internal diameter cylndrical surface, outer ring is provided with, for bead provides certain lubricated space; The outer ring radial end face be provided with that, hole count identical with large-size celestial observation device turntable (10) mounting hole aperture equates and with countersunk head through hole and three tapped through holes that are used to lift the outer ring of turntable (10) mounting hole pitch-row diameter unanimity, this tapped through hole is consistent with the pitch-row diameter of countersunk head through hole and be 120 ° of distributions.
4. the turntable bearing that is used for large-size celestial observation device according to claim 1 is characterized in that: retainer (3) adopts nylon segmented retainer, and the spherical pocket hole of nylon segmented retainer can be pinned big ball and be made the low reposefully friction rotation of big ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102093175A CN101699085B (en) | 2009-11-04 | 2009-11-04 | Turntable bearing for large-size celestial observation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102093175A CN101699085B (en) | 2009-11-04 | 2009-11-04 | Turntable bearing for large-size celestial observation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101699085A CN101699085A (en) | 2010-04-28 |
| CN101699085B true CN101699085B (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102093175A Expired - Fee Related CN101699085B (en) | 2009-11-04 | 2009-11-04 | Turntable bearing for large-size celestial observation device |
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| CN (1) | CN101699085B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109009A (en) * | 2011-03-27 | 2011-06-29 | 洛阳世必爱特种轴承有限公司 | Thrust roller four-point ball turntable bearing |
| CN102434578A (en) * | 2011-09-15 | 2012-05-02 | 中国科学院长春光学精密机械与物理研究所 | Double-row arc raceway reducing ball bearing for small and medium-sized precise turntables |
| CN102878298A (en) * | 2012-10-23 | 2013-01-16 | 九江精密测试技术研究所 | Low-friction dynamic sealing structure for shafting |
| CN105134789B (en) * | 2015-08-18 | 2018-03-23 | 洛阳轴研科技股份有限公司 | A kind of self-lubricating turntable bearing and its end-play match grinding method |
| CN107269683B (en) * | 2017-06-15 | 2022-12-02 | 浙江长盛塑料轴承技术有限公司 | Wear-resistant turntable bearing |
| CN108278275A (en) * | 2018-02-05 | 2018-07-13 | 洛阳新强联回转支承股份有限公司 | A kind of extra large size bearing changeable type textile rubber oil seals |
| CN110905913B (en) * | 2019-12-30 | 2024-02-09 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Abnormal shape full dress four-point contact ball slewing bearing |
| CN113187808B (en) * | 2021-04-27 | 2022-08-12 | 南昌工程学院 | Rolling bearing based on magnetic fluid lubrication |
-
2009
- 2009-11-04 CN CN2009102093175A patent/CN101699085B/en not_active Expired - Fee Related
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| CN101699085A (en) | 2010-04-28 |
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Effective date of registration: 20180509 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |
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