WO2000075511A1 - Schrägscheiben-schwenklager - Google Patents
Schrägscheiben-schwenklager Download PDFInfo
- Publication number
- WO2000075511A1 WO2000075511A1 PCT/EP2000/004357 EP0004357W WO0075511A1 WO 2000075511 A1 WO2000075511 A1 WO 2000075511A1 EP 0004357 W EP0004357 W EP 0004357W WO 0075511 A1 WO0075511 A1 WO 0075511A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cage
- metal ring
- support pin
- swash plate
- cages
- Prior art date
Links
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
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
- F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/141—Details or component parts
- F04B1/146—Swash plates; Actuating elements
- F04B1/148—Bearings therefor
-
- 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
- F16C19/502—Other types of ball or roller bearings with rolling elements in rows not forming a full circle
-
- 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
- F16C33/306—Means to synchronise movements
-
- 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
- F16C2360/00—Engines or pumps
Definitions
- the invention relates to a swashplate swivel bearing for a hydraulic axial piston machine, in which roller bearing segments are arranged between a hollow cylindrical bearing surface for the swashplate in a housing and a cylindrical bearing surface, which are held in arc-shaped cages, the cages being designed as solid cages and have a support pin for resetting the cage in the event of a deviation from a desired position, this support pin runs parallel to the roller bearing pockets and projects beyond the width of the cage and is connected to a feedback device.
- the swashplate pivot bearing is assigned a tracking device which prevents the cage receiving the roller bearing elements from slipping out of its range of motion, namely from its most favorable position in the pivot bearing.
- a tracking device In the absence of a tracking device, such a slipping is possible because the roller bearing elements not only perform rolling movements, but also sliding movements due to rapid pivoting movements and / or shocks and / or the inertia of the roller bearing segment, which lead to bearing displacements of the roller bearing segment. This creates an unfavorable position of the holding segment or segments in relation to the load direction.
- Such swashplate swivel bearings with different tracking devices are described for example in DE-OS 28 26 928, DE-AS 25 21 312 or EP 01 82 354 B1.
- This tracking device is now required on arc-shaped cage a pivot point.
- DE-GM 87 10 514 it is known from DE-GM 87 10 514 to provide the cage with a bore and to insert a metal pin into this bore, which is then in contact with the tracking device.
- the disadvantage here is that in the case of radially small-sized cage segments, this pin can no longer be accommodated in the cage for reasons of space.
- this object is achieved according to the characterizing part of claim 1 in that the cage and support pin are formed in one piece and made of a polymeric material and that the support pin is enclosed by a metal ring at least over part of its axial length.
- the configuration of the arched cage according to the invention ensures that one-piece cages consisting of the actual cage segment and supporting pins can be produced without any problems in size and dimension.
- the metal ring connected to the support pin ensures that, on the one hand, the cage segment at the contact point of the cage segment and the tracking device has sufficient strength against the contact pressure and that, on the other hand, there is sufficient wear resistance against the sliding movement between the support pin and the tracking device.
- the metal ring thus serves as wear protection, since with a direct contact of the support pin with the tracking device with a considerable wear of the polymer material on the Contact point would be expected.
- the metal ring also has a considerably greater permissible surface pressure than the polymer material.
- the metal ring consists of a steel material and is subjected to a heat treatment. This heat treatment enables the steel material to be provided with significantly increased strength values. It is apparent from claim 3 that the metal ring should have a projection on its inner lateral surface. This ensures that the resulting positive connection creates a captive bond between the support pin and the metal ring. According to a further feature of the invention according to claim 4, the metal ring should have an indentation over at least part of its circumference.
- FIG. 1 shows a radial section through an arcuate roller bearing segment
- FIG. 2 shows a section along the line II-II in FIG. 1,
- FIGS. 3, 4 and 5 show an enlarged illustration of the detail Z in FIG. 2,
- Figure 6 shows a longitudinal section through a hydraulic axial piston machine
- the axial piston machine consists of the cylinder drum 1, which is arranged on the shaft 2, the shaft 2 depending on the use of the machine as a pump or as a motor drive or output shaft.
- the shaft 2 is held in a housing assembled only with the housing parts 3 and 4 via the bearings 5 and 6.
- pistons 8 are arranged in cylinder bores, which are supported by sliding shoes 9 on the swash plate 10.
- the swash plate 10 has the cylindrical bearing surface 11, which lies opposite the hollow cylindrical bearing surface 12 in the housing part 4.
- the stroke of the pistons 8 in the cylinder bores 7 is now changed in a known manner by changing the angular position ⁇ of the swash plate 10 with respect to the axis 13 of the shaft 2.
- an adjustment device also not shown, engages, for example, on a lever (not shown) which is fixedly connected to the swash plate 10.
- the roller bearing segment 14 shown in FIG. 1 is arranged in the bearing gap between the bearing surfaces 11 and 12, the roller bodies 15 of which are guided and held by the cage 16.
- the cage 16 is connected on the right side to the support pin 17 and this support pin is surrounded by the metal ring 18 over part of its axial extent. 3 and 4, this metal ring 18 can now be provided with a radially inwardly directed projection 19, so that a positive connection between the metal ring 18 and the support pin 17 is formed.
- the metal ring 18 can also be provided on its outer lateral surface with an at least partially circumferential indentation 20, which the tracking device can intervene in if necessary.
- a metal ring is shown in FIG. 5, the inner face of which lies on the left-hand side and is encapsulated by cage material. Reference numerals
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/018,077 US6719460B1 (en) | 1999-06-07 | 2000-05-16 | Swash-plate drag bearing |
DE10081556T DE10081556B4 (de) | 1999-06-07 | 2000-05-16 | Schrägscheiben-Schwenklager |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19925834.1 | 1999-06-07 | ||
DE19925834A DE19925834A1 (de) | 1999-06-07 | 1999-06-07 | Schrägscheiben-Schwenklager |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000075511A1 true WO2000075511A1 (de) | 2000-12-14 |
Family
ID=7910372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/004357 WO2000075511A1 (de) | 1999-06-07 | 2000-05-16 | Schrägscheiben-schwenklager |
Country Status (3)
Country | Link |
---|---|
US (1) | US6719460B1 (de) |
DE (2) | DE19925834A1 (de) |
WO (1) | WO2000075511A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7517156B2 (en) * | 2005-08-30 | 2009-04-14 | Ntn Corporation | Cradle bearing |
DE102005043032A1 (de) * | 2005-09-10 | 2007-03-15 | Schaeffler Kg | Schrägscheiben-Schwenklager |
DE102007060470A1 (de) | 2007-12-14 | 2009-06-18 | Schaeffler Kg | Schwenklager |
DE102009013094B4 (de) | 2009-03-13 | 2018-09-13 | Schaeffler Technologies AG & Co. KG | Schrägscheiben-Schwenklager und Axialkolbenmaschine |
US8998489B2 (en) | 2009-06-09 | 2015-04-07 | Schaeffler Technologies AG & Co. KG | Segment rolling bearing, and axial hydraulic pump having the segment rolling bearing |
DE102012214343A1 (de) | 2011-09-30 | 2013-04-04 | Robert Bosch Gmbh | Hydrostatische Axialkolbenmaschine |
DE102019217959A1 (de) * | 2019-11-21 | 2021-05-27 | Robert Bosch Gmbh | Exzenterachse mit Lagerhülsen und Verfahren zur Herstellung einer Exzenterachse |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL109636C (de) * | 1958-01-22 | 1900-01-01 | ||
DE2521312B1 (de) | 1975-05-13 | 1976-07-22 | Hydromatik Gmbh | Schraegscheiben-schwenklager fuer eine hydraulische axialkolbenmaschine |
DE2826928A1 (de) | 1978-06-20 | 1980-01-10 | Linde Ag | Vorrichtung zur fuehrung eines waelzlagerkaefigs |
DE3322860A1 (de) * | 1982-07-05 | 1984-01-05 | Steyr-Daimler-Puch AG, 1011 Wien | Zweistoff-fensterkaefig fuer waelzlager, insbesondere rollenlager |
WO1986003547A1 (en) * | 1984-12-11 | 1986-06-19 | Sundstrand Corporation | Unitary bearing retainer for a swashplate bearing |
EP0237750A2 (de) * | 1986-02-25 | 1987-09-23 | BRUENINGHAUS HYDRAULIK GmbH | Schwenklager für die Verstellvorrichtung einer Axial-Kolbenmaschine |
DE8710514U1 (de) | 1987-07-31 | 1987-09-24 | Fag Kugelfischer Georg Schaefer Kgaa, 8720 Schweinfurt | Käfig für ein Segmentwälzlager |
EP0182354B1 (de) | 1984-11-20 | 1989-04-26 | Hydromatik GmbH | Schrägscheiben-Schwenklager für eine hydraulische Axialkolbenmaschine |
DE19646231A1 (de) * | 1996-11-08 | 1998-05-14 | Torrington Nadellager Gmbh | Nadellager |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3610914A1 (de) * | 1985-06-27 | 1987-01-08 | Liebherr Machines Bulle S A | Schraegscheiben-schwenklager fuer eine hydraulische axialkolbenmaschine |
DE3711468A1 (de) * | 1987-04-04 | 1988-10-13 | Schaeffler Waelzlager Kg | Zwangssteuerung des kaefigs eines segmentwaelzlagers |
DE3737387A1 (de) * | 1987-11-04 | 1989-05-18 | Skf Gmbh | Einrichtung zum synchronen nachfuehren eines waelzkoerperkaefigs fuer ein schwenkbewegungen ausfuehrendes waelzlager |
DE3737386A1 (de) * | 1987-11-04 | 1989-05-18 | Skf Gmbh | Schwenkbewegungen ausfuehrendes waelzlager mit einrichtung zum synchronen nachfuehren des waelzkoerperkaefigs |
DE3900492C1 (en) * | 1989-01-10 | 1990-08-09 | W. Schneeberger Ag, Roggwil, Bern, Ch | Rolling bearing for linear rolling-contact guideways |
DE3915904A1 (de) * | 1989-05-16 | 1990-11-29 | Hydromatik Gmbh | Hydraulische axialkolbenmaschine in schiefscheibenbauart mit einer nachfuehreinrichtung fuer den kaefig des segmentwaelzlagers der schiefscheibe |
DE4112506C2 (de) * | 1991-04-17 | 2000-05-11 | Skf Gmbh | Wälzlagerkäfig |
DE9306686U1 (de) * | 1993-05-04 | 1993-07-01 | INA Wälzlager Schaeffler KG, 8522 Herzogenaurach | Einstückiger Käfig |
US5390584A (en) * | 1993-10-25 | 1995-02-21 | Caterpillar Inc. | Follow up mechanism for a swashplate bearing |
US5383391A (en) * | 1994-03-21 | 1995-01-24 | Caterpillar Inc. | Cradle bearing arrangement for axial piston hydraulic devices |
US5630352A (en) * | 1996-03-08 | 1997-05-20 | Vickers, Incorporated | Variable displacement hydrualic piston machine saddle bearing |
-
1999
- 1999-06-07 DE DE19925834A patent/DE19925834A1/de not_active Withdrawn
-
2000
- 2000-05-16 WO PCT/EP2000/004357 patent/WO2000075511A1/de active Application Filing
- 2000-05-16 DE DE10081556T patent/DE10081556B4/de not_active Expired - Fee Related
- 2000-05-16 US US10/018,077 patent/US6719460B1/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL109636C (de) * | 1958-01-22 | 1900-01-01 | ||
DE2521312B1 (de) | 1975-05-13 | 1976-07-22 | Hydromatik Gmbh | Schraegscheiben-schwenklager fuer eine hydraulische axialkolbenmaschine |
DE2826928A1 (de) | 1978-06-20 | 1980-01-10 | Linde Ag | Vorrichtung zur fuehrung eines waelzlagerkaefigs |
DE3322860A1 (de) * | 1982-07-05 | 1984-01-05 | Steyr-Daimler-Puch AG, 1011 Wien | Zweistoff-fensterkaefig fuer waelzlager, insbesondere rollenlager |
EP0182354B1 (de) | 1984-11-20 | 1989-04-26 | Hydromatik GmbH | Schrägscheiben-Schwenklager für eine hydraulische Axialkolbenmaschine |
WO1986003547A1 (en) * | 1984-12-11 | 1986-06-19 | Sundstrand Corporation | Unitary bearing retainer for a swashplate bearing |
EP0237750A2 (de) * | 1986-02-25 | 1987-09-23 | BRUENINGHAUS HYDRAULIK GmbH | Schwenklager für die Verstellvorrichtung einer Axial-Kolbenmaschine |
DE8710514U1 (de) | 1987-07-31 | 1987-09-24 | Fag Kugelfischer Georg Schaefer Kgaa, 8720 Schweinfurt | Käfig für ein Segmentwälzlager |
DE19646231A1 (de) * | 1996-11-08 | 1998-05-14 | Torrington Nadellager Gmbh | Nadellager |
Also Published As
Publication number | Publication date |
---|---|
DE10081556B4 (de) | 2011-08-11 |
DE10081556D2 (de) | 2002-07-11 |
US6719460B1 (en) | 2004-04-13 |
DE19925834A1 (de) | 2000-12-14 |
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