CN109340254B - Main driving bearing for shield machine - Google Patents

Main driving bearing for shield machine Download PDF

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Publication number
CN109340254B
CN109340254B CN201811534779.XA CN201811534779A CN109340254B CN 109340254 B CN109340254 B CN 109340254B CN 201811534779 A CN201811534779 A CN 201811534779A CN 109340254 B CN109340254 B CN 109340254B
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CN
China
Prior art keywords
outer ring
raceway
end cover
lower base
gear
Prior art date
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Active
Application number
CN201811534779.XA
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Chinese (zh)
Other versions
CN109340254A (en
Inventor
苏延奇
徐昊朗
李留涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XCMG Kaigong Heavy Industries Nanjing Co Ltd
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XCMG Kaigong Heavy Industries Nanjing Co Ltd
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Priority to CN201811534779.XA priority Critical patent/CN109340254B/en
Publication of CN109340254A publication Critical patent/CN109340254A/en
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Publication of CN109340254B publication Critical patent/CN109340254B/en
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Classifications

    • 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
    • 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
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/56—Systems consisting of a plurality of bearings with rolling friction in which the rolling bodies of one bearing differ in diameter from those of another
    • 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
    • F16C19/34—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 both radial and axial load
    • F16C19/38—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 both radial and axial load with two or more rows of rollers
    • F16C19/381—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 both radial and axial load with two or more rows of rollers with at least one row for radial load in combination with at least one row for axial load
    • 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
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • 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
    • F16C2352/00—Apparatus for drilling

Abstract

The invention discloses a main driving bearing for a shield machine, which comprises an outer ring assembly, an inner ring assembly arranged in the outer ring assembly, rolling bodies and a retainer arranged between raceways of the outer ring assembly and the inner ring assembly, wherein the inner ring assembly comprises an annular gear and an annular gear raceway sleeved on the periphery of the annular gear, and the outer ring assembly comprises an outer ring upper end cover, an outer ring upper end cover raceway, an outer ring lower base and an outer ring lower base raceway. According to the invention, the main driving bearing for the shield machine is provided with the gear ring and the rollaway nest which are separable, so that damaged parts can be quickly replaced when gear teeth of the bearing collapse or are seriously worn and the rollaway nest is worn, and meanwhile, materials with different performances can be adopted according to the working requirements of an outer ring matrix, the rollaway nest and the gear teeth when the bearing is integrally manufactured, thereby achieving the purposes of reducing maintenance downtime, improving maintenance work efficiency, reducing maintenance and manufacturing cost and increasing overall economic benefit.

Description

Main driving bearing for shield machine
Technical Field
The invention belongs to the technical field of shield machines, and particularly relates to a main driving bearing for a shield machine, in particular to a three-row cylindrical roller bearing with a separable gear ring and a separable rollaway nest.
Background
The main driving bearing of the shield machine is a core component for transmitting torque and power to a cutting cutterhead by the shield machine, on the existing main driving system for the shield machine, the main driving bearing generally adopts three rows of cylindrical roller bearings, and an inner ring (gear ring), an outer ring, rolling bodies and a retainer are all separable, and the main working principle is as follows: the torque from the hydraulic motor or the motor is transmitted to a driving pinion meshed with the main driving bearing after passing through the speed reducer, the gear ring rotates along with the driving of a plurality of pinions, the bearing outer ring and the shield of the shield machine are fixed together by bolts, the gear ring is provided with a threaded hole connected with the cutting cutterhead, and when the shield machine is driven forwards, the torque from the motor or the motor is transmitted to the bearing gear ring through the speed reducer and the pinion and then transmitted to the cutting cutterhead to drive the cutterhead to rotate, so that the aim of cutting dregs is achieved. The main structure of the main driving bearing of the current shield machine is as follows: 1) Gear teeth and three rows of raceways are processed on the bearing gear ring so as to achieve the purpose of matching with the pinion and the bearing outer ring; 2) The outer ring is separable, and is provided with three rows of roller paths matched with the rollers. The above structure has the following disadvantages: 1) The gear teeth and the roller path are integrally machined, and when the gear teeth collapse or are seriously worn, the gear teeth need to be integrally replaced, so that the maintenance cost is high, and the maintenance time is long; 2) The outer ring and the roller path are processed into a whole, and when the bearing roller path is severely worn or the hardening layer is peeled off, the whole replacement is needed; 3) Because the bearing is stressed greatly in the working process, the gear teeth and the roller path are required to have higher hardness and wear resistance, and the bearing base material is required to have better toughness and plasticity, the bearing integrally processed by the gear teeth and the roller path is required to be made of a material with higher overall performance, and the manufacturing cost of the whole bearing is increased intangibly.
Based on the above reasons, it is necessary to invent a main driving bearing for a shield machine with separable gear teeth and roller paths, which can quickly replace damaged parts when the gear teeth of the bearing collapse or are seriously worn and the roller paths are worn, and meanwhile, materials with different performances can be adopted according to the working requirements of an outer ring base body, the roller paths and the gear teeth when the bearing is integrally manufactured, so that the aims of reducing maintenance downtime, improving maintenance work efficiency, reducing maintenance and manufacturing cost and increasing overall economic benefit are achieved.
Disclosure of Invention
In order to overcome the defects, the invention provides the main driving bearing for the shield machine, which can effectively reduce the processing and manufacturing cost of the bearing, reduce the maintenance time and the maintenance cost of the bearing and improve the economic benefits of manufacturing and construction.
The technical scheme adopted by the invention for solving the technical problems is as follows: the main driving bearing for the shield tunneling machine comprises an outer ring assembly, an inner ring assembly arranged in the outer ring assembly, rolling bodies and a retainer arranged between raceways of the outer ring assembly and the inner ring assembly, wherein the inner ring assembly comprises an annular gear and an annular gear raceway sleeved on the periphery of the annular gear, annular bosses are correspondingly arranged in the middle of the peripheries of the annular gear and the annular gear raceway, the annular gear raceway is fixedly connected with the annular gear through bolts, and a row of raceways are respectively processed on the outer side surfaces of two ends of the annular gear raceway and the outer side surface of the middle part corresponding to the annular boss; the outer ring assembly comprises an outer ring upper end cover, an outer ring upper end cover raceway, an outer ring lower base and an outer ring lower base raceway, wherein the outer ring upper end cover is fixedly connected with the outer ring lower base through bolts to form an outer ring body, and the outer ring body is sleeved on the periphery of the inner ring assembly at intervals; the outer ring lower base roller path is fixed on the outer ring lower base through bolts, and the outer ring upper end cover roller path is fixed in the outer ring upper end cover through bolts; two rows of raceways are correspondingly arranged on the raceways corresponding to one end and the middle part of the inner gear ring raceway on the outer ring lower base raceway, and a row of raceways are arranged on the raceways corresponding to the other end of the inner gear ring raceway on the outer ring upper end cover raceway; and retainers are respectively arranged between the annular gear rollaway nest and the corresponding three rows of rollaway nest on the outer ring lower base rollaway nest and the corresponding three rows of rollaway nest on the outer ring upper end cover rollaway nest, and rolling bodies capable of rolling in the rollaway nest are arranged on the retainers.
As a further improvement of the invention, the inner gear ring raceway is provided with a threaded hole for connecting with a cutter head of the shield machine.
As a further improvement of the invention, the inner side surfaces of the outer ring lower base and the outer ring upper end cover are respectively provided with an installation groove with an L-shaped section, and the outer ring lower base rollaway nest and the outer ring upper end cover rollaway nest are respectively correspondingly formed into an L-shaped section.
As a further improvement of the present invention, the axial direction of the rolling bodies on the row of raceways corresponding to the middle of the ring gear raceway is parallel to the axial direction of the ring gear, and the axial direction of the rolling bodies on the two rows of raceways corresponding to the two ends of the ring gear raceway is perpendicular to the axial direction of the ring gear.
As a further improvement of the invention, the rolling bodies are cylindrical, and the cage is made of nylon or copper alloy materials.
The beneficial effects of the invention are as follows: 1) The gear ring and the roller path are designed in a separable way, and different parts of the assembly can be combined by adopting materials with different properties, so that the bearing can obtain necessary strength, hardness and wear resistance, has higher toughness and plasticity, and reduces the manufacturing cost of the bearing; 2) When the gear teeth of the bearing collapse or wear and the roller path wear and damage, the related parts can be replaced without being replaced integrally, so that the maintenance cost is reduced, the maintenance time is shortened, and the economic and time benefits are improved.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
The following description is made with reference to the accompanying drawings:
1-an inner gear ring; 2-inner gear ring race;
11-an annular boss; 3-an outer ring upper end cover;
4, an outer ring upper end cover rollaway nest; 5-outer ring lower base;
6-outer ring lower base rollaway nest; 7, rolling bodies;
8-cage.
Detailed Description
A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. The scope of the invention is not limited to the following examples, but is intended to be limited only by the appended claims and the equivalents and modifications thereof, which fall within the scope of the invention.
Referring to fig. 1, the main driving bearing for a shield machine according to the present invention includes an outer ring assembly, an inner ring assembly disposed in the outer ring assembly, and rolling elements 7 and a cage 8 disposed between raceways of the outer ring assembly and the inner ring assembly.
The inner ring assembly comprises an inner gear ring 1 and an inner gear ring raceway 2 sleeved on the periphery of the inner gear ring, threaded holes for being connected with a cutter head of the shield machine are formed in the inner gear ring raceway 2, annular bosses 11 are correspondingly arranged in the middle of the periphery of the inner gear ring 1 and the periphery of the inner gear ring raceway 2, the inner gear ring raceway 2 and the inner gear ring 1 are fixedly connected through bolts, a row of raceways are respectively formed in the outer side faces of the two ends of the inner gear ring raceway 2 and the outer side face of the middle of the corresponding annular boss 11, and namely three rows of raceways are formed. The axial direction of the rolling bodies on a row of rollaway nest in the middle of the corresponding annular gear rollaway nest is parallel to the axial direction of the annular gear, and the axial direction of the rolling bodies on two rows of rollaway nest at two ends of the corresponding annular gear rollaway nest is perpendicular to the axial direction of the annular gear.
The inner gear ring 1 is made of high-performance materials, high kilo-old, hardness and wear resistance can be obtained after heat treatment, the inner gear ring 1 and the inner gear ring rollaway nest 2 are connected together through high-strength bolts, the inner gear ring 1 is meshed with a plurality of pinion gears, torque from a motor or a motor is transmitted, and when the pinion gears rotate, the inner gear ring 1 drives the inner gear ring rollaway nest 2 to rotate along with the pinion gears.
The outer ring assembly comprises an outer ring upper end cover 3, an outer ring upper end cover roller path 4, an outer ring lower base 5 and an outer ring lower base roller path 6, wherein the outer ring upper end cover 3 is fixedly connected with the outer ring lower base 5 through bolts to form an outer ring body, and the outer ring body is sleeved on the periphery of the inner ring assembly at intervals. The inner side surfaces of the outer ring lower base and the outer ring upper end cover are respectively provided with an installation groove with an L-shaped section, and the outer ring lower base rollaway nest and the outer ring upper end cover rollaway nest are respectively correspondingly formed into an L-shaped section. The outer ring lower base roller path 6 is fixed on the outer ring lower base 5 through bolts, and the outer ring upper end cover roller path 4 is fixed in the outer ring upper end cover 3 through bolts; two rows of raceways are correspondingly arranged on the raceways corresponding to one end and the middle part of the annular gear raceway 2 on the outer ring lower base raceway 6, and a row of raceways are arranged on the raceways corresponding to the other end of the annular gear raceway 2 on the outer ring upper end cover raceway 4.
The outer ring end cover 3 is a part of the outer ring of the bearing, is made of a material with better flexibility and plasticity, is connected with the lower bearing base 5 and the main driving gear box through a high-strength bolt, and is consistent with the state of a shield body in the tunneling process of the shield machine. The outer ring upper end cover is connected with the outer ring upper end cover raceway 4 through bolts.
The outer ring upper end cover roller path 4 is manufactured by adopting high-performance materials, can obtain higher strength, hardness and wear resistance after heat treatment, is provided with a row of roller paths, is mainly subjected to axial force, is connected with the outer ring upper end cover 3 through bolts, and is provided with rolling bodies which move on the roller paths when the shield machine works so as to realize the purposes of rotating the inner ring and keeping the outer ring stationary.
The outer ring lower base 5 is made of a material with better toughness and plasticity, is provided with two raceways, mainly bears axial force and radial force, and is respectively connected with the main driving gear box and the outer ring lower base raceway 6 through bolts.
The outer ring lower base rollaway nest 6 is made of high-performance materials, can obtain higher hardness, strength and wear resistance after heat treatment, is processed with two rows of rollaway nest, is connected with the outer ring lower base 5 through high-strength bolts, and the outer ring lower base rollaway nest 6 keeps motionless and the rolling bodies move on the rollaway nest when the shield machine works.
The rolling bodies 7 are manufactured by adopting high-performance materials and are in cylindrical shapes and distributed among the annular gear rollaway nest 2, the outer ring upper end cover rollaway nest 4 and the outer ring lower base rollaway nest 6, when the shield machine works, the inner ring assembly rotates, the outer ring assembly is static, and the rolling bodies 7 move between the inner ring assembly and the outer ring assembly.
The retainer 8 is made of nylon or copper alloy material, plays a role of fixing rolling bodies, and is distributed between the inner ring roller paths and the outer ring roller paths.
Therefore, the main driving bearing for the shield machine with the separable gear ring and the rollaway nest is arranged, so that damaged parts can be quickly replaced when gear teeth of the bearing collapse or are seriously worn and the rollaway nest is worn, and meanwhile, materials with different performances can be adopted according to the working requirements of an outer ring matrix, the rollaway nest and the gear teeth when the bearing is integrally manufactured, so that the aims of reducing maintenance downtime, improving maintenance work efficiency, reducing maintenance and manufacturing cost and increasing overall economic benefit are achieved.

Claims (5)

1. The utility model provides a shield constructs owner drive bearing for machine, includes outer lane subassembly, arranges the inner circle subassembly in this outer lane subassembly to and locate rolling element (7) and holder (8) between the raceway of this outer lane subassembly and inner circle subassembly, its characterized in that: the inner ring assembly comprises an inner gear ring (1) and an inner gear ring rolling way (2) sleeved on the periphery of the inner gear ring, annular bosses (11) are correspondingly arranged in the middle of the peripheries of the inner gear ring (1) and the inner gear ring rolling way, the inner gear ring rolling way (2) is fixedly connected with the inner gear ring (1) through bolts, and a row of rolling ways are respectively processed on the outer side surfaces of the two ends of the inner gear ring rolling way (2) and the outer side surface of the middle part corresponding to the annular bosses; the outer ring assembly comprises an outer ring upper end cover (3), an outer ring upper end cover raceway (4), an outer ring lower base (5) and an outer ring lower base raceway (6), wherein the outer ring upper end cover (3) is fixedly connected with the outer ring lower base (5) through bolts to form an outer ring body, and the outer ring body is sleeved on the periphery of the inner ring assembly at intervals; the outer ring lower base roller path (6) is fixed in the outer ring lower base (5) through bolts, and the outer ring upper end cover roller path (4) is fixed in the outer ring upper end cover (3) through bolts; two rows of raceways are correspondingly arranged on the raceways corresponding to one end and the middle part of the annular gear raceway (2) on the outer ring lower base raceway (6), and a row of raceways are arranged on the raceways corresponding to the other end of the annular gear raceway (2) on the outer ring upper end cover raceway (4); and a retainer (8) is arranged between the inner gear ring raceway (2) and corresponding three rows of raceways on the outer ring lower base raceway (6) and the outer ring upper end cover raceway (4), and rolling bodies (7) capable of rolling in the raceways are arranged on the retainer.
2. The main drive bearing for a shield machine according to claim 1, wherein: and the inner gear ring raceway is provided with a threaded hole for being connected with a cutter head of the shield machine.
3. The main drive bearing for a shield machine according to claim 1, wherein: the inner side surfaces of the outer ring lower base and the outer ring upper end cover are respectively provided with an installation groove with an L-shaped section, and the outer ring lower base rollaway nest and the outer ring upper end cover rollaway nest are respectively correspondingly formed into an L-shaped section.
4. A main drive bearing for a shield machine according to claim 3, wherein: the axial direction of the rolling bodies on a row of rollaway nest in the middle of the corresponding annular gear rollaway nest is parallel to the axial direction of the annular gear, and the axial direction of the rolling bodies on two rows of rollaway nest at two ends of the corresponding annular gear rollaway nest is perpendicular to the axial direction of the annular gear.
5. The main drive bearing for a shield machine according to claim 1, wherein: the rolling bodies are cylindrical, and the retainer is made of nylon or copper alloy materials.
CN201811534779.XA 2018-12-14 2018-12-14 Main driving bearing for shield machine Active CN109340254B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201811534779.XA CN109340254B (en) 2018-12-14 2018-12-14 Main driving bearing for shield machine

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CN109340254B true CN109340254B (en) 2024-03-22

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111749981B (en) * 2020-07-03 2022-07-08 中国铁建重工集团股份有限公司 Shield constructs owner bearing and outer lane thereof
CN114776713A (en) * 2022-04-08 2022-07-22 洛阳轴承研究所有限公司 Shield machine main bearing, shield machine main bearing outer ring and machining method thereof

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WO2012136632A1 (en) * 2011-04-05 2012-10-11 Rothe Erde Gmbh Oil-lubricated anti-friction bearing
DE102012004329A1 (en) * 2012-02-07 2013-08-08 Imo Holding Gmbh Roller bearing arrangement for supporting portion of energy system, particularly wind turbine, has tracks arranged in radially overlapping portions such that support angle is greater than or equal to forty five degree
CN103477100A (en) * 2011-01-19 2013-12-25 Imo控股有限责任公司 Rotor bearing for a wind power generating plant
CN104329377A (en) * 2013-07-22 2015-02-04 Skf公司 Slewing bearing with split ring
CN204553552U (en) * 2015-03-10 2015-08-12 洛阳新强联回转支承股份有限公司 A kind of three-row roller turntable bearing with axial pretightening
CN204851521U (en) * 2015-07-02 2015-12-09 国电联合动力技术有限公司 Tidal power generation unit and become oar bearing thereof
JP2016138572A (en) * 2015-01-26 2016-08-04 日本精工株式会社 Thrust roller bearing
CN106195003A (en) * 2016-08-08 2016-12-07 洛阳轴研科技股份有限公司 A kind of arc-shaped guide rail bearing unit and use the rocking equipment of this bearing unit
CN205780340U (en) * 2016-06-07 2016-12-07 大连联合风电轴承有限公司 Three-row roller wire roller bearing
CN106481658A (en) * 2015-08-25 2017-03-08 深圳市沃尔曼精密机械技术有限公司 Speed reduction bearing and motor
CN108150526A (en) * 2017-12-26 2018-06-12 新昌县江北轴承有限公司 A kind of high heat dissipation bidirectional angular contact thrust ball bearing of lathe
CN108637600A (en) * 2018-05-10 2018-10-12 中铁隧道股份有限公司新乡盾构技术服务分公司 A kind of main bearing of shield machine reproducing method
CN209245066U (en) * 2018-12-14 2019-08-13 徐工集团凯宫重工南京股份有限公司 Shield machine gear ring and the detachable main drive shaft of raceway are held

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103477100A (en) * 2011-01-19 2013-12-25 Imo控股有限责任公司 Rotor bearing for a wind power generating plant
WO2012136632A1 (en) * 2011-04-05 2012-10-11 Rothe Erde Gmbh Oil-lubricated anti-friction bearing
DE102012004329A1 (en) * 2012-02-07 2013-08-08 Imo Holding Gmbh Roller bearing arrangement for supporting portion of energy system, particularly wind turbine, has tracks arranged in radially overlapping portions such that support angle is greater than or equal to forty five degree
CN104329377A (en) * 2013-07-22 2015-02-04 Skf公司 Slewing bearing with split ring
JP2016138572A (en) * 2015-01-26 2016-08-04 日本精工株式会社 Thrust roller bearing
CN204553552U (en) * 2015-03-10 2015-08-12 洛阳新强联回转支承股份有限公司 A kind of three-row roller turntable bearing with axial pretightening
CN204851521U (en) * 2015-07-02 2015-12-09 国电联合动力技术有限公司 Tidal power generation unit and become oar bearing thereof
CN106481658A (en) * 2015-08-25 2017-03-08 深圳市沃尔曼精密机械技术有限公司 Speed reduction bearing and motor
CN205780340U (en) * 2016-06-07 2016-12-07 大连联合风电轴承有限公司 Three-row roller wire roller bearing
CN106195003A (en) * 2016-08-08 2016-12-07 洛阳轴研科技股份有限公司 A kind of arc-shaped guide rail bearing unit and use the rocking equipment of this bearing unit
CN108150526A (en) * 2017-12-26 2018-06-12 新昌县江北轴承有限公司 A kind of high heat dissipation bidirectional angular contact thrust ball bearing of lathe
CN108637600A (en) * 2018-05-10 2018-10-12 中铁隧道股份有限公司新乡盾构技术服务分公司 A kind of main bearing of shield machine reproducing method
CN209245066U (en) * 2018-12-14 2019-08-13 徐工集团凯宫重工南京股份有限公司 Shield machine gear ring and the detachable main drive shaft of raceway are held

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