DE19817290B4 - Rolling along - Google Patents

Rolling along Download PDF

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Publication number
DE19817290B4
DE19817290B4 DE1998117290 DE19817290A DE19817290B4 DE 19817290 B4 DE19817290 B4 DE 19817290B4 DE 1998117290 DE1998117290 DE 1998117290 DE 19817290 A DE19817290 A DE 19817290A DE 19817290 B4 DE19817290 B4 DE 19817290B4
Authority
DE
Germany
Prior art keywords
tube
grooves
sleeve
longitudinal
rolling
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.)
Expired - Fee Related
Application number
DE1998117290
Other languages
German (de)
Other versions
DE19817290A1 (en
Inventor
Andreas DRÜGEMÖLLER
Ludwig Edelmann
Andreas Geyer
Hermann Glöckner
Erwin Jeschka
Holger Kristandt
Uwe Mayer
Henryk Velde
Lothar Walter
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.)
SKF Linearsysteme GmbH
Original Assignee
SKF Linearsysteme GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SKF Linearsysteme GmbH filed Critical SKF Linearsysteme GmbH
Priority to DE1998117290 priority Critical patent/DE19817290B4/en
Publication of DE19817290A1 publication Critical patent/DE19817290A1/en
Application granted granted Critical
Publication of DE19817290B4 publication Critical patent/DE19817290B4/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00Bearings for parts moving only linearly
    • F16C29/04Ball or roller bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00Shafts; Axles; Cranks; Eccentrics
    • F16C3/02Shafts; Axles
    • F16C3/03Shafts; Axles telescopic
    • F16C3/035Shafts; Axles telescopic with built-in bearings

Abstract

Longitudinal rolling bearing with an outer sleeve (1) and a in the bore (2) of the outer sleeve (1) arranged thin-walled inner tube (3), wherein
- between the outer sleeve (1) and the inner tube (3) in circumferentially distributed longitudinal grooves (5, 5 ', 5'', 11) rolling elements (4) are arranged,
- The inner tube (3) consists of a star-shaped, corrugated in the circumferential direction tube,
- The longitudinal and radially outwardly open grooves (5, 5 ', 5'') of the inner tube (3) formed by the shafts, together with corresponding longitudinally and radially inwardly open grooves (11) of the outer sleeve (1), the raceways (6 , 7, 13, 14) for the rolling bodies (4) form or wear,
- The raceways (6, 7, 13, 14) forming or supporting side walls (9, 9 ', 10, 10') of each groove (5, 5 ', 5'', 11) are V-shaped,
- The grooves (5, 5 ', 5'', 11) are arranged in pairs diametrically opposite, and
- of the several pairs of ...

Description

  • The Invention relates to a rolling bearing, consisting of an outer sleeve and one arranged in the bore of the outer sleeve thin-walled inner tube and between the outer sleeve and the inner tube in circumferentially distributed longitudinal grooves or Like. Arranged rolling elements.
  • Such Rolling along be for used the most diverse applications. They are meant to be limited Stroke paths in the longitudinal direction to slide sliding machine parts friction and accurately and have to as well as big ones Forces out transmitted in all directions, moments and even torques.
  • It are longitudinal rolling bearings known that consist of massive parts that are not only heavy by weight, but only with great manufacturing effort To manufacture, so are very expensive and usually no torque transmitted can.
  • From the FR 1 278 851 A are telescopic guides with a square cross-section outer tube and a round inner tube known, the rolling elements are guided in two diagonally opposite corners of the outer tube. In the cylindrical inner tube are flat, in cross-section arcuate or prism-shaped grooves incorporated, which form the raceways for the balls. These grooves weaken the cross section of the tube, so that this known bearing is not very stable and dimensionally stable. In addition, only small torques can be transmitted with this solution.
  • Furthermore, polygonal telescopic tubes are known, which are made of a thin-walled inner tube and also thin-walled outer tube - both with a rectangular cross-section - between which rolling elements are arranged. The inner tube has recesses at the corners, wherein in at least two diametrically opposite recesses balls are mounted, which are supported at two points on the inner surfaces of the outer tube ( DE 19 19 240 U1 ).
  • These known rolling bearings, the for height-adjustable Tables are to be used, are not form-and once rigid enough and have only a low load capacity on. They are not for heavily loaded applications, such. B. in overrun brakes for trailers or Like., Where high forces and moments occur suitable. These are also known designs not free of play.
  • From the DE 25 32 661 A1 is a telescopic shaft, in particular an agricultural propeller shaft, known with reciprocally displaceable shaft parts, wherein in the outer tubular shaft portion of the correspondingly shaped in cross-section inner shaft portion is slidably disposed, the outer shaft portion provided on its outer surface with axially extending and circumferentially distributed guideways for the torque transmission rolling elements is, which are further held in corresponding guideways of a coaxial with the outer shaft part outer part, each pair of guideway several rolling elements are arranged in series and on both sides of the rows of rolling stationary on the outer part supported springs limit their axial movement, and wherein at least one return spring is provided, on the one hand is supported on the outer shaft part and on the other hand on the outer part.
  • From the DE 35 13 340 A1 is a driver connection between a shaft and a hub with axial adjustment, in particular for steering spindles of motor vehicles, in which a plurality of sets of balls for supporting between outer peripheral and longitudinal grooves of the shaft part and inner peripheral side grooves of the hub part are held positively and substantially free of play, and in the the hub portion of the driver connection is formed by a tubular body whose wall is deformed without cutting to produce the hub-side longitudinal grooves. In order to achieve an absolutely backlash-free seating of the balls in the longitudinal grooves, the shaft part of the driver connection is likewise formed by a tubular body whose wall is deformed without cutting to produce the shaft-side longitudinal grooves, and the shaft part and the hub part of the driver connection are pressed into the associated longitudinal grooves Balls braced against each other.
  • It is therefore an object of the present invention, a roller bearing of the type mentioned above to create that simple and cost-effective Manufacturability especially freedom from play or preload adjustable is.
  • Is solved This object of the invention by the objects of claims 1 and 4. Advantageous embodiments are described in the subclaims.
  • By the star-shaped and circumferentially corrugated shape of the tube becomes easier One way despite low wall thickness dimensionally stable and rigid bearing part of high load capacity created that cost-effectively can be produced. The side walls of the grooves form the raceways, without that these specially processed, d. H. for example, must be ground.
  • According to a further feature of the invention, the side walls of each groove are formed V-shaped and perpendicular to each other, so that a kind of prism is formed, wherein the rolling elements, z. B. balls, support in two-point contact. This also contributes to increasing the carrying capacity and the transferability of high torques.
  • The Grooves in the inner tube are according to a further feature of the invention arranged in pairs diametrically opposite each other. The has the advantage that the Runways of the adjacent groove pairs, based on the central axis of the bearing, can be arranged on different diameters, wherein the deviations of the diameter according to further features of the invention in the order of magnitude from 0.1 to 0.5 mm, preferably 0.2 mm.
  • If well, in some cases is sufficient, only in a diametrically opposite pair of grooves Arranged rolling elements Depending on the manufacturing tolerances of the parts and in particular the grooves in the inner tube and also in the outer sleeve with the same diameter the rolling elements desired Radial play in the bearing or even backlash or preload generated become. To these possibilities better to use, is proposed for a further feature of the invention, the in pairs opposite Grooves in the inner tube and / or in the outer sleeve by means of suitable markings to mark.
  • Finally is it is possible according to a further feature of the invention, in the longitudinal grooves the inner tube and / or the outer sleeve hardened raceway plates appeal. This z. B. of hardened Sheet steel made track plates can be adapted to the shape of the grooves, d. H. z. B. V-shaped be bent. By this measure will the carrying capacity elevated, if z. B. inner tube and / or outer sleeve made of softer materials, such as Sheet steel or aluminum or other light metal alloys are made. Preferably, inner tube and / or outer sleeve are made Extruded aluminum sections manufactured.
  • When Rolling elements can, like mentioned Balls, or z. B. used crosswise cylindrical rollers become.
  • The Outer sleeve can massive, z. B. of a light metal alloys, or as well the inner tube are made of sheet steel. The radially after inside open grooves in the outer sleeve, the the tracks can form be produced by machining or non-cutting machining. As already mentioned, can hardened Steel sheets are inserted to form the raceways.
  • One embodiment The invention will be described below with reference to an embodiment become.
  • It demonstrate:
  • 1 a cross section and
  • 2 a longitudinal section along the line AA through an inventive rolling bearings and
  • 3 a cross section through the inner sleeve of the Längsälzlagers 1 and 2 and
  • 4 a schematic representation of the raceways in the inner tube on different diameters.
  • The longitudinal rolling bearing according to the invention consists of an outer sleeve 1 one in the hole 2 the outer sleeve 1 arranged inner tube 3 and between the outer sleeve 1 and the inner tube 3 arranged rolling elements, for. B. balls 4 ,
  • The inner tube 3 is how particular out 1 and 3 can be seen, formed from a cross-sectionally star-shaped, corrugated in the circumferential direction of the tube, formed by the waves, longitudinally and radially outwardly open, circumferentially distributed grooves 5 for receiving the raceways 6 and 7 for the rolling elements 4 forming raceway plates 8th serve with V-shaped cross-section. These track plates 8th are based on the mutually perpendicular side walls 9 and 10 every groove 5 from. The outer sleeve 1 is in the hole 2 also with longitudinal grooves 11 provided, which are V-shaped and prismatic and also V-shaped track plates 12 with the raceways 13 and 14 for the balls 4 be able to record.
  • How out 1 can be seen in this embodiment only in two diametrically opposite grooves 5 respectively. 11 Race plates 8th respectively. 12 and rolling elements 4 arranged. This arrangement is usually sufficient.
  • As described above, in order to provide a certain bearing clearance, it is useful to arrange the raceways of the circumferentially adjacent grooves in the inner tube at different diameters and to select the raceways which give the desired value. This is in 4 illustrated, wherein for simplicity on the raceway plates 8th was dispensed and the bullets 4 directly on the side walls 9 and 10 issue.
  • Due to the prismatic arrangement of the side walls 9 and 10 touch the balls 4 in the grooves 5 the side walls 9 and 10 in the points 15 and 16 , These points 15 and 16 lie on the diameter D 1 . In the neighboring grooves 5 ' are the side walls 9 ' and 10 ' slightly changed so that the points of contact 15 ' and 16 ' on egg Diameter D 2 come to lie, which is about 0.2 mm larger. To facilitate measuring these differences, it makes sense to use two balls 4 in the grooves 5 respectively. 5 ' insert and then determine the envelope circle diameter D H and D H '.
  • At the next pair of adjacent grooves 5 '' can - which for reasons of clarity in the 4 is no longer shown - the side walls are again changed so that the points of contact of the balls with the side walls on a once again larger by 0.2 mm diameter than D 2 . So are in a longitudinal rolling bearing with six circumferentially distributed grooves 5 . 5 ' and 5 '' at constant grooves 11 in the outer sleeve 1 three variations for the radial clearance or preload given.
  • Around the correct position of the grooves with the different diameters to mark in special places special markings, such as notches, color symbols or the like are attached (not shown). When using Extruded aluminum sections can longitudinal Grooves are used as markings with pressed or pulled.

Claims (10)

  1. Longitudinal rolling bearing with an outer sleeve ( 1 ) and one in the hole ( 2 ) of the outer sleeve ( 1 ) arranged thin-walled inner tube ( 3 ), wherein - between the outer sleeve ( 1 ) and the inner tube ( 3 ) in circumferentially distributed longitudinal grooves ( 5 . 5 ' . 5 '' . 11 ) Rolling elements ( 4 ) are arranged, - the inner tube ( 3 ) consists of a star-shaped, circumferentially corrugated tube, - formed by the waves longitudinal and radially outwardly open grooves ( 5 . 5 ' . 5 '' ) of the inner tube ( 3 ) together with corresponding longitudinal and radially inwardly open grooves ( 11 ) of the outer sleeve ( 1 ) the raceways ( 6 . 7 . 13 . 14 ) for the rolling elements ( 4 ) form or wear, - the raceways ( 6 . 7 . 13 . 14 ) forming or supporting side walls ( 9 . 9 ' . 10 . 10 ' ) each groove ( 5 . 5 ' . 5 '' . 11 ) Are V-shaped, - the grooves ( 5 . 5 ' . 5 '' . 11 ) are arranged in pairs diametrically opposite each other, and - of the several pairs of grooves ( 5 . 5 ' . 5 '' . 11 ) only in a pair of rolling elements ( 4 ) are arranged.
  2. Longitudinal rolling bearing according to claim 1, characterized in that the raceways ( 6 . 7 . 13 . 14 ) forming or supporting side walls ( 9 . 9 ' . 10 . 10 ' ) each groove ( 5 . 5 ' . 5 '' . 11 ) are formed perpendicular to each other.
  3. Longitudinal rolling bearing according to one of claims 1 or 2, characterized in that the raceways ( 6 . 7 . 13 . 14 ) of the circumferentially adjacent grooves ( 5 . 5 ' . 5 '' . 11 ) in the inner tube ( 3 ) and / or in the outer sleeve ( 1 ) relative to the center axis of the bearing on different diameters (D 1 , D 2 ) are.
  4. Longitudinal rolling bearing with an outer sleeve ( 1 ) and one in the hole ( 2 ) of the outer sleeve ( 1 ) arranged thin-walled inner tube ( 3 ), wherein - between the outer sleeve ( 1 ) and the inner tube ( 3 ) in circumferentially distributed longitudinal grooves ( 5 . 5 ' . 5 '' . 11 ) Rolling elements ( 4 ) are arranged, - the inner tube ( 3 ) consists of a star-shaped, circumferentially corrugated tube whose longitudinal and radially outwardly open grooves formed by the shafts ( 5 . 5 ' . 5 '' ) the raceways ( 6 . 7 ) for the rolling elements ( 4 ) form or wear, - the grooves ( 5 . 5 ' . 5 '' ) in the inner tube ( 3 ) are arranged in pairs diametrically opposite, and - the tracks ( 6 . 7 . 13 . 14 ) of the circumferentially adjacent grooves ( 5 . 5 ' . 5 '' . 11 ) in the inner tube ( 3 ) and / or in the outer sleeve ( 1 ) relative to the center axis of the bearing on different diameters (D 1 , D 2 ) are.
  5. Longitudinal rolling bearing according to claim 4, characterized in that the raceways ( 6 . 7 . 13 . 14 ) forming or supporting side walls ( 9 . 9 ' . 10 . 10 ' ) each groove ( 5 . 5 ' . 5 '' . 11 ) Are V-shaped and perpendicular to each other.
  6. Longitudinal rolling bearing according to one of claims 4 or 5, characterized in that only in a diametrically opposite pair of grooves ( 5 . 5 ' . 5 '' . 11 ) Rolling elements ( 4 ) are arranged.
  7. Longitudinal rolling bearing according to one of claims 3 to 6, characterized in that the deviations of the diameters (D 1 , D 2 ) are in the order of 0.1 to 0.5 mm.
  8. Longitudinal rolling bearing according to one of claims 3 to 6, characterized in that the deviations of the diameters (D 1 , D 2 ) are 0.2 mm.
  9. Longitudinal rolling bearing according to one of claims 3 to 8, characterized in that pairs of diametrically opposed grooves ( 5 . 5 ' . 5 '' . 11 ) in the inner tube ( 3 ) and / or in the outer sleeve ( 1 ) are identified by suitable markings.
  10. Longitudinal rolling bearing according to one of claims 1 to 9, characterized in that in the longitudinal grooves ( 5 . 5 ' . 5 '' ) of the inner tube ( 3 ) and / or in the grooves ( 11 ) of the outer sleeve ( 1 ) hardened raceway plates ( 8th . 12 ) are inserted.
DE1998117290 1998-04-18 1998-04-18 Rolling along Expired - Fee Related DE19817290B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998117290 DE19817290B4 (en) 1998-04-18 1998-04-18 Rolling along

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998117290 DE19817290B4 (en) 1998-04-18 1998-04-18 Rolling along

Publications (2)

Publication Number Publication Date
DE19817290A1 DE19817290A1 (en) 1999-10-21
DE19817290B4 true DE19817290B4 (en) 2009-02-12

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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10041990B4 (en) * 2000-08-26 2016-06-16 Schaeffler Technologies AG & Co. KG Rolling bearing for guiding a shift rail of a transmission
DE10123221C5 (en) * 2001-05-12 2008-01-17 Gkn Driveline Deutschland Gmbh Adjustable sliding unit
DE10158545B4 (en) * 2001-11-29 2004-05-19 Gkn Driveline Deutschland Gmbh Longitudinal displacement unit with hollow profile pin
DE10208325C1 (en) * 2002-02-27 2003-09-25 Ifa Technologies Gmbh Automobile cardan shaft has 2 half shafts coupled via sliding linkage allowing compensation of vertical and/or horizontal offset between driving and driven units
US6761503B2 (en) 2002-04-24 2004-07-13 Torque-Traction Technologies, Inc. Splined member for use in a slip joint and method of manufacturing the same
DE10249978A1 (en) * 2002-10-26 2004-05-13 Ina-Schaeffler Kg Linear guide with u-shaped guide rail
DE102004051829A1 (en) 2004-10-25 2006-05-04 Bosch Rexroth Mechatronics Gmbh Linear guide feed module with guide body and jib therefor
DE102005050541A1 (en) * 2005-10-21 2007-05-03 Schaeffler Kg Rolling bearings for longitudinal movements with limited sliding path
DE102006004656A1 (en) * 2006-01-31 2007-08-30 Aktiebolaget Skf Linear bearing comprises an inner part having an outer casing with a section lying opposite a section of the inner casing of an outer part
AT554294T (en) * 2008-09-18 2012-05-15 Kirschey Centa Antriebe Shaft assembly for torque transmission
DE102009008009A1 (en) 2009-02-07 2010-08-12 Schaeffler Technologies Gmbh & Co. Kg Linear bearing arrangement for a telescopic steering spindle guide
CN106062397B (en) * 2014-07-03 2019-11-15 日本精工株式会社 Telescopic rotation transmission axle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1273521A (en) * 1960-10-28 1961-10-13 Leitz Ernst Gmbh A guide device, in particular for cylindrical bodies
FR1278851A (en) * 1960-01-08 1961-12-15 Karl Goller Kg Maschf telescopic guide, especially for tables and chairs
DE1919240U (en) * 1965-04-06 1965-07-08 Reinhard Hoernlein K G Height-adjustable table, are provided in which between the inner and outer tube of a telescopic tube polygonal rolling elements.
DE2532661B2 (en) * 1975-07-22 1977-07-21 farm machinery telescopic shaft, in particular for
DE3513340A1 (en) * 1985-04-13 1986-10-23 Daimler Benz Ag Driving connection between a shaft and a hub
DE3629173A1 (en) * 1986-08-28 1988-03-10 Kabus Horst Maschf Cross roller bearing
US4798268A (en) * 1986-10-29 1989-01-17 Bendix France Multiple disc brake

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1278851A (en) * 1960-01-08 1961-12-15 Karl Goller Kg Maschf telescopic guide, especially for tables and chairs
FR1273521A (en) * 1960-10-28 1961-10-13 Leitz Ernst Gmbh A guide device, in particular for cylindrical bodies
DE1919240U (en) * 1965-04-06 1965-07-08 Reinhard Hoernlein K G Height-adjustable table, are provided in which between the inner and outer tube of a telescopic tube polygonal rolling elements.
DE2532661B2 (en) * 1975-07-22 1977-07-21 farm machinery telescopic shaft, in particular for
DE3513340A1 (en) * 1985-04-13 1986-10-23 Daimler Benz Ag Driving connection between a shaft and a hub
DE3629173A1 (en) * 1986-08-28 1988-03-10 Kabus Horst Maschf Cross roller bearing
US4798268A (en) * 1986-10-29 1989-01-17 Bendix France Multiple disc brake

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Prof. Dr.-Ing. G. Niemann Konstruieren im Maschine nbau Erfahrungsangaben. Technische Hochschule Münc hen, November 1957, 15 S.
Prof. Dr.-Ing. G. Niemann Konstruieren im Maschinenbau Erfahrungsangaben. Technische Hochschule München, November 1957, 15 S.; *

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