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
  • 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
  • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
  • F16C33/108—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid with a plurality of elements forming the bearing surfaces, e.g. bearing pads
• • 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
  • F16C17/00—Sliding-contact bearings for exclusively rotary movement
  • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
• • 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
  • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
  • F16C33/1085—Channels or passages to recirculate the liquid in the bearing

Definitions

• the present invention relates to the field of storage of rotating machinery, e.g. Hydro generators. It relates to a hydrodynamic sliding bearing according to the preamble of claim 1.
• Rotors of large machines such as hydro generators are usually carried and guided by hydrodynamic plain bearings, as described for example in the document EP-A2-0 135 730. In these bearings, the axial and radial guidance is taken over by separate bearings of different designs.
• a running ring (2) is provided in FIG. 1 therefor, which in the radial direction by guide bearing segments (4) and in axial direction is supported by support bearing segments (3).
• the guide bearing segments (4) are equipped according to FIG. 2 of EP-A2-0 135 730 with a pumping bag or a pumping gap (13).
• the lubricant collects in the pumping gap (13) and is pumped from there through a lubricant outflow channel (14) into an outflow bore (15) and from there into a lubricant circuit.
• the object is solved by the entirety of the features of claim 1.
• the invention is characterized in that the slide bearing is equipped with an integrated pumping device for pumping the lubricating oil in a circuit.
• the pumping device is arranged laterally on one of the support segments, wherein in particular the pumping device is arranged in the direction of rotation on the front side of the support element.
• the pumping means is formed separately from the support member and releasably secured to the support segment.
• Another embodiment of the invention is characterized in that the pumping device is perpendicular to the axis of rotation adjacent to the raceway, and at the boundary between the top and the raceway forms a pumping gap, and that means are provided to collect the pumping gap in the gap and under pressure Remove lubricating oil laterally from the pumping device.
• the means for discharging the lubricating oil comprise a arranged in the direction of rotation at the end of the pumping gap, extending in the radial direction, in particular over the width of the pumping gap, extending discharge channel, which communicates with a arranged in the interior of the pumping device collecting space, wherein the collecting space in radial direction, a discharge pipe is guided out of the pumping device to the outside.
• the pumping means comprises a base body attachable to the support segment, on the upper side of which a cover plate adjoining the raceway is mounted, in the upper side of which a recess is made to form the pumping gap.
• the cover plate is preferably detachably connected to the base body, in particular screwed.
• the entire pumping device can also be an integral part of the support segment, without individual screwed parts.
• the channels can be milled out in the segment body.
• a first recess is provided in the base body at the end adjacent to the support segment, which forms the collecting space after being covered by the cover plate; at the end of the cover plate adjoining the support segment, a second recess is provided, which forms the discharge channel.
• Figure 1 is a perspective view of the basic arrangement of a hydrodynamic sliding bearing, as it is suitable for carrying out the inventive solution.
• FIG. 2 is a side view of a pump device according to a preferred embodiment of the invention in the plane G-G in FIG. 3;
• FIG. 2 is a side view of a pump device according to a preferred embodiment of the invention in the plane G-G in FIG. 3;
• FIG. 3 is a plan view from above of a support segment with screwed pumping device according to FIG. 2;
• Fig. 4 shows the section through the arrangement of Fig. 3 in the plane E-E.
• the invention relates to a support bearing assembly, as shown in FIG. 1 greatly simplified.
• the sliding bearing 10 of Fig. 1 comprises a rotatable about a rotation axis 13 race 11, which rests in the axial direction on a plurality of ring segment-shaped support segments 12, of which in Fig. 1, only one is drawn. Between the bottom of the race 11 and the top of the support segment 12 is a bearing gap 14 which is filled with a lubricant film.
• the assumed direction of rotation of the race 11 is indicated by the rotary arrow shown in FIG.
• a pumping device 15 is attached, which cooperates with the raceway 11 and 11 unfolds a pumping action when rotating raceway, such as it has been described similarly for the guide bearing segment in the aforementioned EP-A2-0 135 730.
• the pumping device 15 comprises a fastener on the support segment 12 Baren, cuboidal base body 16, on the upper side of which is adjacent to the raceway 11 cover plate 17 is mounted.
• cover plate 17 In the top of the cover plate 17 is a extending in the direction of rotation, laterally limited depression introduced, which, when the cover plate 17 adjacent to the underside of the raceway 11, the desired pumping gap 18 is formed.
• the cover plate 17 is detachably connected to the base body 16, in particular by means of the fastening screws 22 screwed.
• a first recess is provided at the end adjacent to the support segment 12, which, after being covered by the cover plate 17, forms a collection chamber 19 which is bounded on one side by the support segment 12.
• a second recess is provided which forms a discharge channel 20 which is bounded on one side by the support segment 12.
• lubricating oil collects in the pumping gap 18 and is continuously discharged through the disposed at the end of the pumping gap 18 discharge channel 20 in the lying in the interior of the pumping device 15 collecting space 19.
• a discharge pipe 21 which is guided in the radial direction through the main body 16 to the outside.
• the pumped lubricating oil can be supplied to a cooling and / or filtering and subsequently returned to the storage area to form a closed circuit.
• an external pump can be saved or dispensed with special pump segments.
• the pumping device 15 can be easily retrofitted to existing support segments. By dividing the pumping device 15 in the base 16 and cover plate 17, the production is simplified. Overall, there are the following advantages: - Short construction; a total of fewer bearing parts; no external pumps needed; and higher operational safety.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Sliding-Contact Bearings (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=37056480

Family Applications (1)

Country Status (6)

Families Citing this family (2)

Family Cites Families (10)

• 2007
  • 2007-02-23 JP JP2009501989A patent/JP2009531621A/ja not_active Withdrawn
  • 2007-02-23 EP EP07712290A patent/EP1999387A1/de not_active Withdrawn
  • 2007-02-23 CA CA002647491A patent/CA2647491A1/en not_active Abandoned
  • 2007-02-23 CN CN2007800149067A patent/CN101432534B/zh not_active Expired - Fee Related
  • 2007-02-23 WO PCT/EP2007/051741 patent/WO2007110287A1/de active Application Filing
• 2008
  • 2008-09-23 US US12/235,717 patent/US7641392B2/en not_active Expired - Fee Related

Non-Patent Citations (1)

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