CN103291757A - Large-size pivotal bearing segmented specially-shaped retainer - Google Patents
Large-size pivotal bearing segmented specially-shaped retainer Download PDFInfo
- Publication number
- CN103291757A CN103291757A CN201310184076XA CN201310184076A CN103291757A CN 103291757 A CN103291757 A CN 103291757A CN 201310184076X A CN201310184076X A CN 201310184076XA CN 201310184076 A CN201310184076 A CN 201310184076A CN 103291757 A CN103291757 A CN 103291757A
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- CN
- China
- Prior art keywords
- retainer
- aluminum bronze
- leg
- built
- matrix
- 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.)
- Pending
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 31
- 229910000906 Bronze Inorganic materials 0.000 claims abstract description 30
- 239000010974 bronze Substances 0.000 claims abstract description 30
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims abstract description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000010949 copper Substances 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 17
- 239000011159 matrix material Substances 0.000 claims description 31
- 238000003466 welding Methods 0.000 claims description 25
- 230000011218 segmentation Effects 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 238000012856 packing Methods 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
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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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/4605—Details of interaction of cage and race, e.g. retention or centring
-
- 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
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/30—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for axial load mainly
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/51—Cages for rollers or needles formed of unconnected members
- F16C33/513—Cages for rollers or needles formed of unconnected members formed of arcuate segments for carrying one or more rollers
-
- 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
- F16C2220/00—Shaping
- F16C2220/24—Shaping by built-up welding
-
- 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
-
- 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
- F16C2322/00—Apparatus used in shaping articles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a large-size pivotal bearing segmented specially-shaped retainer, and relates to a bearing retainer. The large-size pivotal bearing segmented specially-shaped retainer comprises a retainer base body (2), copper pads (5) and surfacing aluminum bronze supporting legs (6), wherein the retainer base body (2) consisting of fillet square and straight pockets (1), the surfacing aluminum bronze supporting legs (6) with the copper pads on two surfaces and an oil penetrating slot (3) arranged in the outer diameter surface is adopted, so that the aims of prolonging the service life of the retainer and improving the friction property of the retainer are fulfilled. The large-size pivotal bearing segmented specially-shaped retainer is simple in structure, high in practicability and convenient to mount; the problems of short service life, easiness in rotation locking and low friction property of the retainer are effectively solved; the aims of high pivotal bearing precision, high stability, high intensity, long service and low friction are fulfilled.
Description
[technical field]
The present invention relates to a kind of retainer, especially relate to a kind of huge revolving bearing segmentation abnormity retainer.
[background technique]
Known, ladle turret is the key equipment of casting machine, and turning round big bearing is the ladle turret core component, and steel ladle rotary table turns round the work characteristics of big bearing:
(1) heavy duty.The big bearing of ladle turret need carry the hundreds of ton to the load of last kiloton, comprises both sides ladle, molten steel, and the deadweight of support pivoted arm hundreds of ton, and when two pivoted arms when all support the ladle that fills with molten steel, suffered load is maximum.
(2) unbalance loading.The operating mode of the big loading ability of bearing of ladle turret has 5 kinds: namely both sides are fully loaded, and one is full, and one full one does not have, and one empty one does not have, and two do not have two skies.Maximum unbalance loading appears at a side ladle and fills with the operating mode that the molten steel opposite side does not have ladle, and the big bearing of ladle turret this moment can bear maximum tilting moment.
(3) impact.Produce very big impact when laying mobile ladle, this impact makes the big bearing of traverse platform bear bigger impact dynamic load.
(4) high temperature.High-temperature molten steel in the ladle can produce thermal radiation to traverse platform, thereby makes the big bearing of ladle turret bear additional thermal stress; The molten steel particle that splashes when pouring into a mould in addition brings hidden danger also can for the big bearing of traverse platform.
The rolling element that steel ladle rotary table turns round big bearing is cylindrical roller, roller length two ends swing diameter difference of living in the bearing operation process, the linear velocity difference, roller end line speed is big in the outer part, and it is little by inboard roller end line speed, thereby can cause that roller is crooked to skid, surface friction drag is increased, therefore retainer not only plays guiding, the separation roller effect, also must bear in the operation process and rolling element and lasso guide surface surface friction drag and Driving force effect, therefore the structure of retainer directly influences usability and the life-span of bearing, if the big bearing generation of traverse platform early failue, will influence the production of whole casting machine production line and output, serious even can cause enormous economic loss or casualties.
Common huge revolving bearing adopts the shape pocket hole retainer of taking turns of nylon or casting aluminium material, and in use very easily fracture is lost, and causes the disordered state of roller motion, makes that roller is cracked, the raceway wearing and tearing chew and peel off; Take turns shape pocket hole because the gap is little, and pocket hole profile female surface is big, so easily pile up foreign material in the profile gap, pocket hole, will cause the revolution clamping stagnation, thereby cause the early failue of the big bearing of traverse platform.
[summary of the invention]
In order to overcome the deficiency in the background technique, the invention discloses a kind of huge revolving bearing segmentation abnormity retainer, the present invention wears the retainer matrix of logical oil groove design by adopting straight pocket hole, fillet side, two-sided built-up welding aluminum bronze leg and the external diameter that has copper packing, reaches the purpose that prolongs the retainer life-span, improves the retainer frictional behaviour with this.
In order to realize described goal of the invention, the present invention adopts following technological scheme:
A kind of huge revolving bearing segmentation abnormity retainer, comprise retainer matrix, copper packing and built-up welding aluminum bronze leg, on the side of retainer matrix, be evenly distributed with a plurality of pockets hole and built-up welding aluminum bronze leg, built-up welding aluminum bronze leg is arranged on the side of the retainer matrix between adjacent two pocket holes, and a plurality of logical oil grooves evenly distribute on the outer diametric plane of retainer matrix.
Described a kind of huge revolving bearing segmentation abnormity retainer, described retainer matrix is structure as a whole, and adopts steel plate to be made.
Described a kind of huge revolving bearing segmentation abnormity retainer, described pocket hole is square structure, four jiaos of the pocket hole is fillet structure or oval structure.
Described a kind of huge revolving bearing segmentation abnormity retainer, the upper side of described built-up welding aluminum bronze leg is provided with copper packing, the Placement that is connected employing argon arc weld deposit aluminum bronze of copper packing and built-up welding aluminum bronze leg.
Described a kind of huge revolving bearing segmentation abnormity retainer, described logical oil groove is arcuate structure.
Described a kind of huge revolving bearing segmentation abnormity retainer, described built-up welding aluminum bronze leg are on two sides that symplex structure is arranged on the retainer matrix.
Owing to adopted technique scheme, the present invention to have following beneficial effect:
A kind of huge revolving bearing segmentation abnormity retainer of the present invention, comprise retainer matrix, copper packing and built-up welding aluminum bronze leg, by adopting straight pocket hole, fillet side, two-sided built-up welding aluminum bronze leg and the external diameter that has copper packing to wear the retainer matrix of logical oil groove design, reach the purpose that prolongs the retainer life-span, improves the retainer frictional behaviour with this; The present invention is simple in structure, and is practical, easy for installation, effectively solved retainer life-span weak point, turns round clamping stagnation easily, and the problem of frictional behaviour difference has realized floating bearing highi degree of accuracy, high stability, high strength, long lifetime, the low target that rubs.
[description of drawings]
Fig. 1 is perspective view of the present invention.
Fig. 2 is that stereochemical structure of the present invention splits schematic representation.
Fig. 3 is pocket hole structure plan view of the present invention.
Fig. 4 is plan view of the present invention.
Among the figure: 1, pocket hole; 2, retainer matrix; 3, logical oil groove; 4, fillet; 5, copper packing; 6, built-up welding aluminum bronze leg.
[embodiment]
By the following examples can be detailed explanation the present invention, disclose purpose of the present invention and be intended to protect all technological improvements in the scope of the invention.
1 ~ 4 described a kind of huge revolving bearing segmentation abnormity retainer by reference to the accompanying drawings, comprise retainer matrix 2, copper packing 5 and built-up welding aluminum bronze leg 6, on the side of retainer matrix 2, be evenly distributed with a plurality of pockets hole 1 and built-up welding aluminum bronze leg 6, pocket hole 1 is square structure, four jiaos of pocket hole 1 is fillet structure or oval structure, built-up welding aluminum bronze leg 6 is arranged on the side of the retainer matrix 2 between adjacent two pocket holes 1, a plurality of logical oil grooves 3 evenly distribute on the outer diametric plane of retainer matrix 2, described retainer matrix 2 is structure as a whole, the employing steel plate is made, the upper side of described built-up welding aluminum bronze leg 6 is provided with copper packing 5, copper packing 5 and built-up welding aluminum bronze leg 6 be connected the Placement that adopts the argon arc weld deposit aluminum bronze, described logical oil groove 3 is arcuate structure, and described built-up welding aluminum bronze leg 6 is on two sides that symplex structure is arranged on retainer matrix 2.
Implement a kind of huge revolving bearing segmentation abnormity retainer of the present invention, retainer matrix 2 adopts steel plate to be made, the straight structural design in fillet side is adopted in pocket hole 1 on the retainer matrix 2, avoided the concentrated revolution catching phenomenon that causes of sharp corner stress in the past, make rolling element the running of circumferencial direction and diametric(al) and mobile freely, improved the revolution flexibility of floating bearing, more simply and easily realize high-precision requirement on the technology, has fine Economy, cut down finished cost, the outer diametric plane of retainer matrix 2 is provided with the logical oil groove 3 of a plurality of arcs, can store lubricant grease, the floating bearing part is well lubricated, to prevent under action of centrifugal force, sliding friction and the wearing and tearing of retainer matrix 2 external diameters and guide surface, the design that two sides of retainer matrix 2 are adopted two-sided built-up welding aluminum bronze leg 6 and had copper packing 5 in the upper side of built-up welding aluminum bronze leg 6, reduce the side and the friction area that contacts between the roller surface of retainer matrix 2, improve its frictional behaviour, making between original steel and the steel friction become friction between copper and the steel, simultaneously after the built-up welding aluminum bronze leg 6 of retainer matrix 2 is polished, therefore two sides of retainer matrix 2 can be changed, increase the life-span of 2 one times of retainer matrixes.
Part not in the detailed description of the invention is prior art.
Claims (5)
1. huge revolving bearing segmentation abnormity retainer, comprise retainer matrix (2), copper packing (5) and built-up welding aluminum bronze leg (6), it is characterized in that: the completely circular structure that retainer is made up of several retainer matrix (2) splicings, on the side of retainer matrix (2), be evenly distributed with a plurality of pockets hole (1) and built-up welding aluminum bronze leg (6), pocket hole (1) is square structure, four jiaos of pocket hole (1) is fillet structure, built-up welding aluminum bronze leg (6) is arranged on the side of the retainer matrix (2) between adjacent two pocket holes (1), and a plurality of logical oil grooves (3) evenly distribute on the outer diametric plane of retainer matrix (2).
2. a kind of huge revolving bearing segmentation abnormity retainer according to claim 1, it is characterized in that: described retainer matrix (2) is structure as a whole, and adopts steel plate to be made.
3. described a kind of huge revolving bearing segmentation abnormity retainer, it is characterized in that: described pocket hole (1) is square structure, and pocket hole (1) four jiaos is fillet structure or oval structure.
4. a kind of huge revolving bearing segmentation abnormity retainer according to claim 1, it is characterized in that: the upper side of described built-up welding aluminum bronze leg (6) is provided with copper packing (5), copper packing (5) and built-up welding aluminum bronze leg (6) be connected the Placement that adopts the argon arc weld deposit aluminum bronze, described built-up welding aluminum bronze leg (6) is on two sides that symplex structure is arranged on retainer matrix (2).
5. a kind of huge revolving bearing segmentation abnormity retainer according to claim 1, it is characterized in that: described logical oil groove (3) is arcuate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310184076XA CN103291757A (en) | 2013-05-17 | 2013-05-17 | Large-size pivotal bearing segmented specially-shaped retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310184076XA CN103291757A (en) | 2013-05-17 | 2013-05-17 | Large-size pivotal bearing segmented specially-shaped retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103291757A true CN103291757A (en) | 2013-09-11 |
Family
ID=49093138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310184076XA Pending CN103291757A (en) | 2013-05-17 | 2013-05-17 | Large-size pivotal bearing segmented specially-shaped retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103291757A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210074A (en) * | 2017-07-05 | 2019-01-15 | 斯凯孚公司 | Sectional type retainer for rolling bearing |
| CN112639310A (en) * | 2018-08-10 | 2021-04-09 | 基伊埃牧场科技有限公司 | Carousel milking device with supporting seat |
| CN114483794A (en) * | 2022-01-25 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Combined retainer for main bearing of heading machine and assembling method thereof |
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|---|---|---|---|---|
| CN2644763Y (en) * | 2003-04-02 | 2004-09-29 | 洛阳轴承集团有限公司 | Integral cage with arc pocket |
| CN101532538A (en) * | 2009-03-13 | 2009-09-16 | 北京隆轩橡塑有限公司 | Cylindrical roller bearing engineering plastics cage |
| CN201322051Y (en) * | 2008-12-17 | 2009-10-07 | 上海人本集团有限公司 | Needle roller bearing cage for drawn cup one-way clutch |
| CN201354803Y (en) * | 2008-12-29 | 2009-12-02 | 中机十院国际工程有限公司 | Axial steel solid holder for three-row cylindrical roller combination turntable bearing |
| CN201382090Y (en) * | 2009-03-26 | 2010-01-13 | 常州光洋轴承有限公司 | Nonmetallic cage of needle roller bearings |
| CN201606411U (en) * | 2010-03-04 | 2010-10-13 | 洛阳Lyc轴承有限公司 | Three-row cylinder roller bearing axial composite cage |
| CN201891740U (en) * | 2010-12-15 | 2011-07-06 | 江苏南港回转支承有限公司 | Plane retainer unit for slewing bearing |
| CN202100614U (en) * | 2011-06-01 | 2012-01-04 | 洛阳新强联回转支承有限公司 | Retainer device for slewing ring bearing |
| CN202140427U (en) * | 2011-06-24 | 2012-02-08 | 江苏南港回转支承有限公司 | Slewing bearing |
| CN203308932U (en) * | 2013-05-17 | 2013-11-27 | 洛阳特重轴承有限公司 | Segmented abnormal retainer of large-size pivotal bearing |
-
2013
- 2013-05-17 CN CN201310184076XA patent/CN103291757A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2644763Y (en) * | 2003-04-02 | 2004-09-29 | 洛阳轴承集团有限公司 | Integral cage with arc pocket |
| CN201322051Y (en) * | 2008-12-17 | 2009-10-07 | 上海人本集团有限公司 | Needle roller bearing cage for drawn cup one-way clutch |
| CN201354803Y (en) * | 2008-12-29 | 2009-12-02 | 中机十院国际工程有限公司 | Axial steel solid holder for three-row cylindrical roller combination turntable bearing |
| CN101532538A (en) * | 2009-03-13 | 2009-09-16 | 北京隆轩橡塑有限公司 | Cylindrical roller bearing engineering plastics cage |
| CN201382090Y (en) * | 2009-03-26 | 2010-01-13 | 常州光洋轴承有限公司 | Nonmetallic cage of needle roller bearings |
| CN201606411U (en) * | 2010-03-04 | 2010-10-13 | 洛阳Lyc轴承有限公司 | Three-row cylinder roller bearing axial composite cage |
| CN201891740U (en) * | 2010-12-15 | 2011-07-06 | 江苏南港回转支承有限公司 | Plane retainer unit for slewing bearing |
| CN202100614U (en) * | 2011-06-01 | 2012-01-04 | 洛阳新强联回转支承有限公司 | Retainer device for slewing ring bearing |
| CN202140427U (en) * | 2011-06-24 | 2012-02-08 | 江苏南港回转支承有限公司 | Slewing bearing |
| CN203308932U (en) * | 2013-05-17 | 2013-11-27 | 洛阳特重轴承有限公司 | Segmented abnormal retainer of large-size pivotal bearing |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210074A (en) * | 2017-07-05 | 2019-01-15 | 斯凯孚公司 | Sectional type retainer for rolling bearing |
| CN109210074B (en) * | 2017-07-05 | 2022-03-25 | 斯凯孚公司 | Segmented cage for rolling bearing |
| CN112639310A (en) * | 2018-08-10 | 2021-04-09 | 基伊埃牧场科技有限公司 | Carousel milking device with supporting seat |
| CN112639310B (en) * | 2018-08-10 | 2023-09-01 | 基伊埃牧场科技有限公司 | Rotary milking equipment with support base |
| CN114483794A (en) * | 2022-01-25 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Combined retainer for main bearing of heading machine and assembling method thereof |
| CN114483794B (en) * | 2022-01-25 | 2024-04-19 | 中国铁建重工集团股份有限公司 | Combined retainer for main bearing of heading machine and assembling method thereof |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130911 |