NL2019601B1 - Dredger pump transmission output shaft mounting and dredger pump transmission - Google Patents
Dredger pump transmission output shaft mounting and dredger pump transmission Download PDFInfo
- Publication number
- NL2019601B1 NL2019601B1 NL2019601A NL2019601A NL2019601B1 NL 2019601 B1 NL2019601 B1 NL 2019601B1 NL 2019601 A NL2019601 A NL 2019601A NL 2019601 A NL2019601 A NL 2019601A NL 2019601 B1 NL2019601 B1 NL 2019601B1
- Authority
- NL
- Netherlands
- Prior art keywords
- bearing device
- output shaft
- pump transmission
- spherical bearing
- dredge pump
- Prior art date
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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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/02—Sliding-contact bearings
- F16C23/04—Sliding-contact bearings self-adjusting
- F16C23/043—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings
- F16C23/045—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings for radial load mainly, e.g. radial spherical plain bearings
- F16C23/046—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings for radial load mainly, e.g. radial spherical plain bearings with split outer 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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/02—Sliding-contact bearings
- F16C23/04—Sliding-contact bearings self-adjusting
- F16C23/043—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/1045—Details of supply of the liquid to the bearing
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/121—Use of special materials
-
- 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
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/122—Multilayer structures of sleeves, washers or liners
- F16C33/125—Details of bearing layers, i.e. the lining
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
-
- 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
- F16C2350/00—Machines or articles related to building
- F16C2350/26—Excavators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Reciprocating Pumps (AREA)
- Support Of The Bearing (AREA)
Abstract
A dredger pump transmission output shaft mounting (1) of a dredger pump transmission of a dredger pump, With a sliding bearing device (3), in which an output shaft (2) of the dredger pump transmission is rotatably mountable; and With a spherical bearing device (4), in which the sliding bearing device (3) is tiltably mounted, so that the sliding bearing device (3) is tiltable relative to the spherical bearing device (4) as a consequence of loads acting on the output shaft (3).
Description
Dredger pump transmission output shaft mounting and dredger pump transmission
The invention relates to a dredger pump transmission output shaft mounting and a dredger pump transmission. A dredger is a machine which serves for land reclamation, deepening shipping lanes or extracting the water, sand or stone mixture. Dredgers comprise a dredger pump which serves for pumping out the mineral building materials or raw materials. Tire dredger pump can be driven from a drive, wherein between the drive and the dredger pump typically a dredger pump transmission is connected. The output shaft of the dredger pump transmission serves as driveshaft for the dredger pump, wherein a pump wheel of the dredger pump is directly attached to the output shaft of the dredger pump transmission. The output shaft is mounted in a dredger pump transmission output shaft mounting. According to current practice, dredger pump transmission output shaft mountings are designed as self-aligning roller bearings. The utilisation of self-aligning roller bearings with a dredger pump transmission output shaft mounting however is disadvantageous since self-aligning roller bearings in the corresponding dimensions required are expensive and have long delivery times and are difficult to replace when damaged. Accordingly, such output shafts typically have a diameter between 600 mm and 1,000 mm. Self-aligning roller bearings dimensioned accordingly are very expensive. Furthermore, when used in a dredger pump transmission output shaft mounting self-aligning roller bearings are subjected to major wear as a consequence of the loads acting on the pump wheel of the dredger pump and via the pump on the output shaft during operation. Accordingly, forces in the order of magnitude of 1,000 kN act on the pump wheel and thus the output shaft during operation. Such great forces, which can occur highly dynamically and shocklike, can only be inadequately absorbed by self-aligning roller bearings so that dredger pump transmission output shaft mountings known from practice are susceptible to wear.
There is therefore a need for a new type of dredger pump transmission output shaft mounting which makes possible a cost-effective mounting of the output shaft that is unsusceptible to wear even with large output shaft diameters. DE 100 34 195 Cl discloses the fundamental construction of a dredger pump.
Starting out from this, the present invention is based on the object of creating a new type of dredger pump transmission output shaft mounting and a dredger pump transmission with such a dredger pump transmission output shaft mounting.
This object is solved through a dredger pump transmission output shaft mounting according to claim 1. The dredger pump transmission output shaft mounting according to the invention comprises a sliding bearing device, in which an output shaft of the dredger pump transmission can be rotatably mounted and has a spherical bearing device, in which the sliding bearing device is tiltably mounted, so that the sliding bearing device is tillable relative to the spherical bearing device as a consequence of loads acting on the output shaft. The dredger pump transmission output shaft mounting according to the invention combines a sliding bearing device with a spherical bearing device. The sliding bearing device serves for the rotatable mounting of the output shaft. The spherical bearing device serves for the tillable mounting of the sliding bearing device. When during the operation of the dredger pump major forces, such as for example shock loads act on the pump wheel and via the pump wheel on the output shaft, to which the pump wheel is directly fastened, the sliding bearing device can tilt relative to the output shaft and relative to the spherical bearing device. Deformations of the output shaft are thus offset. The load-carrying characteristics of the sliding bearing device for various operating states can thus be improved.
According to an advantageous further development of the invention, the sliding bearing device is convexly curved on an outer surface, while the spherical bearing device is concavely curved on an inner surface adjoining the outer surface of the sliding bearing device. Preferentially, a curvature radius of the inner surface of the spherical bearing device is greater than a curvature radius of the outer surface of the sliding bearing device. A particularly advantageous dredger pump transmission output shaft mounting can thereby be provided.
According to an advantageous further development of the invention, the spherical bearing device comprises at least one first oil supply bore, via which oil can be introduced between the spherical bearing device and the sliding bearing device. Preferentially, the spherical bearing device comprises at least one second oil supply bore which is in alignment with at least one oil supply bore of the sliding bearing device, via which oil can be introduced between the sliding bearing device and the output shaft. By way of this, the dredger pump transmission output shaft mounting can be further improved. Oil between the spherical bearing device and the sliding bearing device allows offsetting deformations of the output shaft in a particularly advantageous manner during the operation.
According to an advantageous further development of the invention, the sliding bearing device is produced from a first metallic material, in particular from a steel, wherein the spherical bearing device is produced from a second metallic material, in particular from a grey cast iron material or spheroidal graphite cast iron material. Preferentially, the sliding bearing device is coated on the outer surface and/or the spherical bearing device on the inner surface in particular with bronze, brass, lubricating varnish, PTFE (polytetrafluoroethylene) or a sliding layer on a plastic or graphite base. The use of metallic material is preferred because of the high loads. By way of the coating, the bearing behaviour of the dredger pump transmission output shaft mounting can be improved.
The dredger pump transmission according to the invention is defined in claim 10.
Preferred further developments of the invention are obtained from the subclaims and the following description. Exemplary embodiments of the invention are explained in more detail by way of the drawing without being restricted to this. There it shows:
Fig. 1: a schematic cross section through a dredger pump transmission output shaft mounting according to the invention.
The present invention relates to a dredger pump transmission output shaft mounting and to a dredger pump transmission.
Fig. 1 shows an extract from a dredger pump transmission of a dredger pump in the region of a dredger pump transmission output shaft mounting 1 for an output shaft 2 of the dredger pump transmission. A pump wheel 15 of the dredger pump is directly fastened on the output shaft 2 of the dredger pump transmission, wherein the output shaft 2 of the dredger pump transmission provides the driveshaft for the pump wheel 15 of the dredger pump.
The dredger pump transmission output shaft mounting 1 comprises a sliding bearing device 3, in which the output shaft 2 of the dredger pump transmission is rotatably mounted. As already explained, the pump wheel 15 of the dredger pump is directly fastened on the output shaft 2.
The dredger pump transmission output shaft mounting 1 furthermore comprises a spherical bearing device 4. In the spherical bearing device 4, the sliding bearing device 3 is tiltably mounted.
In the case of loads, in particular in the case of shock loads acting on the output shaft 2 of the dredger pump transmission during the operation of the dredger pump, the sliding bearing device 3 can tilt relative to the output shaft 2 and relative to the spherical bearing device 4 in order to offset deformations of the output shaft 2. This allows a particularly advantageous mounting of an output shaft 2 of the dredger pump transmission.
The spherical bearing device 4 follows the sliding bearing device 3 radially on the outside. The sliding bearing device 3 is convexly curved on an outer surface 9 namely with a first curvature radius. The spherical bearing device 4 is concavely curved on an inner surface 10 adjoining the outer surface 9 of the sliding bearing device 3, namely with a second curvature radius. The second curvature radius of the inner surface 10 of the spherical bearing device 4 is preferentially greater than the first curvature radius of the outer surface 9 of the sliding bearing device 3. This allows, in particular, offsetting a temperature increase of the sliding bearing device 3 with respect to the spherical bearing device 4 or the offsetting of a distinct heat expansion of sliding bearing device 3 and spherical bearing device 4 caused by this.
The spherical bearing device 4 comprises at least one first oil supply bore 11, via which oil can be introduced between the spherical bearing device 4 and the sliding bearing device 3, namely between the outer surface 9 of the sliding bearing device 3 and the inner surface 10 of the spherical bearing device 4. By way of this, an optimal lubrication between spherical bearing device 4 and sliding bearing device 3, unloading of the sliding bearing device 3 and a particularly advantageous tilting of the sliding bearing device 3 relative to the sliding bearing device 4 is possible. The oil pressure between spherical bearing device 4 and sliding bearing device 3 can be selected so high in order to provide a hydrostatic lifting of the spherical bearing device 4.
The spherical bearing device 4, furthermore, comprises at least one second oil supply bore 12, which is in alignment with at least one oil supply bore 13 of the sliding bearing device 3, wherein via these oil supply bores 12 and 13 oil can be introduced into a gap 14 between the sliding bearing device 3 and the output shaft 2 of the dredger pump transmission.
Sliding bearing device 3 and spherical bearing device 4 are each embodied split. Accordingly, the sliding bearing device 3 comprises an upper shell 5 and a lower shell 6. Likewise, the spherical bearing device 4 comprises an upper shell 7 and a lower shell 8. Because of this, a particularly advantageous, simple assembly of the dredger pump transmission output shaft mounting 1 on the output shaft 2 of the dredger pump transmission is possible.
The sliding bearing device 3 is preferentially produced from a first metallic material, in particular from a steel. The spherical bearing device 4 is preferentially produced from a second metallic material, in particular from a grey cast iron material or from a spheroidal graphite cast iron material. Alternatively, the spherical device 4 can also be produced from a plastic.
Particularly preferred is a configuration, in which the outer surface 9 of the sliding bearing device 3 and/or the inner surface 10 of the spherical bearing device 4 is coated, namely with bronze, brass, sliding varnish or PTFE. By way of this, a particularly advantageous mounting of the sliding bearing device 3 in the spherical bearing device 4 is possible. By way of this, optimal friction coefficients between sliding bearing device 3 and spherical bearing device 4 can be adjusted. Wear, such as for example by the seizure of the surfaces 9, 10 or fretting corrosion on the surfaces 9, 10 of sliding bearing device 3 and spherical bearing device 4 can thereby be kept as low as possible.
In particular, as low as possible an initial friction value can be adjusted.
The invention provides an entirely new type of dredger pump transmission output shaft mounting 1. The diameter of the output shaft 2 of the dredger pump transmission to be mounted in the dredger pump transmission output shaft mounting 1 typically amounts to between 600 mm and 1,000 mm. The pump wheel 15 of the dredger pump is directly fastened on the output shaft 2 of the dredger pump transmission, wherein a lever arm between the pump wheel 15 and the dredger pump transmission output shaft mounting 1 can amount to approximately 1,000 mm. During the operation, high shock loads in the order of magnitude of 1,000 kN act on the pump wheel 15. Because of this, high loads through corresponding forces and moments are then caused in the region of the dredger pump transmission output shaft mounting 1. The dredger pump transmission output shaft mounting 1 according to the invention can absorb these loads in an operationally safe manner. The sliding bearing device 3 can tilt, during the operation, relative the spherical bearing device 4 and relative to the output shaft 2 and perform a permanent angle adaptation with respect to the spherical bearing device 4 and with respect to the output shaft 2.
Reference list 1 Dredger pump transmission output shaft mounting 2 Output shaft 3 Sliding bearing device 4 Spherical bearing device 5 Upper shell 6 Lower shell 7 Upper shell 8 Lower shell 9 Outer surface 10 Inner surface 11 Oil supply bore 12 Oil supply bore 13 Oil supply bore 14 Gap 15 Pump wheel
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016118006.8A DE102016118006A1 (en) | 2016-09-23 | 2016-09-23 | Sucker pump gearbox output shaft bearing and dredger pump gearbox |
Publications (2)
Publication Number | Publication Date |
---|---|
NL2019601A NL2019601A (en) | 2018-03-29 |
NL2019601B1 true NL2019601B1 (en) | 2019-06-07 |
Family
ID=60019645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL2019601A NL2019601B1 (en) | 2016-09-23 | 2017-09-21 | Dredger pump transmission output shaft mounting and dredger pump transmission |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN107869517B (en) |
BE (1) | BE1025124B1 (en) |
DE (1) | DE102016118006A1 (en) |
NL (1) | NL2019601B1 (en) |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1000877A (en) * | 1962-06-30 | 1965-08-11 | Ckd Praha | Improvements in or relating to rotary blowers or compressors |
NL165249C (en) * | 1975-12-19 | 1981-03-16 | Ballast Nedam Groep Nv | METHOD AND APPARATUS FOR BREAKING HARD SOIL CONTAINED UNDERWATER |
JPS54134846U (en) * | 1978-03-13 | 1979-09-19 | ||
DE3311310C1 (en) * | 1983-03-28 | 1984-06-20 | Bhs Bayerische Berg | Planetary gear, which is arranged between a flow machine and an electrical machine in a housing |
DE4028416A1 (en) * | 1990-09-07 | 1992-03-12 | Hanning Elektro Werke | A SYNCHRONOUS MOTOR HAVING A START-UP AID |
DE10034195C1 (en) | 2000-07-13 | 2002-04-04 | Luebecker Maschb Gmbh | Dredger pump has welded sheet metal pump wheel provided with 2 discs having axially projecting blades |
US8926185B2 (en) * | 2006-07-19 | 2015-01-06 | Roller Bearing Company Of America, Inc. | Spherical plain bearing with lubrication groove |
CN201884460U (en) * | 2010-08-13 | 2011-06-29 | 大连三环复合材料技术开发有限公司 | Double-slit outer-ring overall structure self-lubrication joint bearing |
DE102010042074B3 (en) * | 2010-10-06 | 2012-02-09 | Aktiebolaget Skf | Bearing housing and bearing arrangement |
EP2699814A1 (en) * | 2011-04-25 | 2014-02-26 | The Timken Company | Bearing and lubrication system used therewith |
CN103511455A (en) * | 2012-06-21 | 2014-01-15 | 襄阳汽车轴承股份有限公司 | Centripetal joint bearing with spiral groove on internal diameter |
WO2014161560A1 (en) * | 2013-04-05 | 2014-10-09 | Schaublin Sa | Spherical bearing and method of making the same |
DE102013226748B4 (en) * | 2013-12-19 | 2022-08-18 | Aktiebolaget Skf | Inner ring for a radial spherical plain bearing and method for mounting an inner ring for a radial spherical plain bearing |
US9562567B2 (en) * | 2014-02-07 | 2017-02-07 | Roller Bearing Company Of America, Inc. | Spherical bearing with axially compressed annular seal |
CN203784093U (en) * | 2014-04-11 | 2014-08-20 | 新昌县明瑞关节轴承有限公司 | Composite joint bearing |
CN105370730B (en) * | 2015-12-18 | 2018-11-13 | 中车集团台州第七八一六工厂 | A kind of tilting-pad bearing for rotor |
-
2016
- 2016-09-23 DE DE102016118006.8A patent/DE102016118006A1/en active Pending
-
2017
- 2017-09-15 BE BE2017/5655A patent/BE1025124B1/en active IP Right Grant
- 2017-09-21 NL NL2019601A patent/NL2019601B1/en active
- 2017-09-22 CN CN201710863333.0A patent/CN107869517B/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102016118006A1 (en) | 2018-03-29 |
BE1025124B1 (en) | 2018-11-07 |
NL2019601A (en) | 2018-03-29 |
BE1025124A1 (en) | 2018-10-31 |
CN107869517A (en) | 2018-04-03 |
CN107869517B (en) | 2021-07-20 |
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Legal Events
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PD | Change of ownership |
Owner name: RENK GMBH; DE Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGE OF LEGAL ENTITY; FORMER OWNER NAME: RENK AKTIENGESELLSCHAFT Effective date: 20210716 |