WO2009003843A2 - Rail de guidage cintré - Google Patents

Rail de guidage cintré Download PDF

Info

Publication number
WO2009003843A2
WO2009003843A2 PCT/EP2008/057763 EP2008057763W WO2009003843A2 WO 2009003843 A2 WO2009003843 A2 WO 2009003843A2 EP 2008057763 W EP2008057763 W EP 2008057763W WO 2009003843 A2 WO2009003843 A2 WO 2009003843A2
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
fixed
guide rail
guide
bearings
Prior art date
Application number
PCT/EP2008/057763
Other languages
German (de)
English (en)
Other versions
WO2009003843A3 (fr
Inventor
Uwe Danneck
Jörg GUTH
Markus Knecht
Marco Schnur
Hans Simon
Klaus Schumacher
Original Assignee
Schaeffler Kg
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 Schaeffler Kg filed Critical Schaeffler Kg
Publication of WO2009003843A2 publication Critical patent/WO2009003843A2/fr
Publication of WO2009003843A3 publication Critical patent/WO2009003843A3/fr

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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/005—Guide rails or tracks for a linear bearing, i.e. adapted for movement of a carriage or bearing body there along
    • 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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/045—Ball or roller bearings having rolling elements journaled in one of the moving parts
    • 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
    • F16C33/61—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings formed by wires

Definitions

  • the invention relates to a curved guide rail for a slidably mounted on rollers on two parallel guide shafts carriage.
  • Guide rails are used on track guides that are suitable for a variety of applications in handling technology, in machine guidance systems and in automation devices.
  • the guide rails can have both rectilinear and curved courses.
  • Round arched rails can be produced as hardened steel rails by hardening and grinding turned and drilled 360 ° bends, from which appropriate segments are then cut out if necessary.
  • round arch rails as composite rails, wherein an extruded aluminum section cut to length for the arch rail is bent on a bending device to the desired radius. Hardened and bent steel shafts are then inserted as guide shafts in lateral grooves of the aluminum profile and fastened there by rolling in. The steel shafts must be aligned exactly parallel, so that a perfect function of the carriage is guaranteed.
  • the joint between a straight and an arcuate guide shaft each forms a transition region in which a sudden change in the track width can occur. This has the disadvantage that a chatter occurs in the carriage when driving over the joints with track width change.
  • a composite rail which consists of a profile body made of flowable material with lateral grooves and inserted in these rails of non kaltfrissabarem material is known from DE-OS 35 04 061.
  • the DE-GM 89 12 165 shows a guide device for a carriage provided with guide rollers, wherein the rollers are made of guide rods Roll off steel held in lateral grooves of an extruded light metal rail body.
  • the carriage may form a carousel or be translationally movable along the rail.
  • each retaining element requires a central longitudinal slot for receiving the steel strip or a central longitudinal bore for receiving the round rod.
  • the guide shafts for the carriage are held in lateral grooves of each integral holding member.
  • Each retaining element has two holes for the screws, which extend on both sides of the longitudinal slot and the longitudinal bore.
  • these one-piece holding elements are not very suitable for arcuate guide shafts, because there the contact between the sheet and the holding element does not take place in the lateral groove in a planar manner, but only in a line or point shape.
  • each bearing element is designed in two parts and consists of a lower part and an upper part, which adjoin one another along a parting line running through the lateral grooves.
  • Such a guide rail can dispense along its straight or arcuate course both on an aluminum composite rail and on central longitudinal guide elements such as steel bands or rods. It consists only of the straight or arcuate guide or round steel shafts, which are aligned parallel to each other and are held by the clamping elements.
  • the bearing elements for linear rail part sections can be used as prismatic clamping elements with a rectangular layout and those for arcuate rail part sections as circular clamping elements with nik vom- be executed shaped plan.
  • the upper parts can be partially inserted into central bores of the lower parts and held there by the fastening element.
  • the fastening elements may be screws which are inserted through the holes of the lower parts, screwed into threaded holes in the base body and inserted with their screw heads in stepped bores of the tops.
  • the bearing elements can be arranged distributed as a circular clamping elements at equal intervals from each other on the arcuate rail track section. In the case of application-related space problems, non-equidistant distances of the clamping elements can be realized at any time.
  • Object of the present invention was to provide a curved guide rail according to the features of the preamble of claim 1, in which this disadvantage is eliminated.
  • this object has been achieved by the curved guide rail according to claim 1.
  • the fact that floating bearings are arranged between fixed bearings, the guide carriage can be moved during its passage along the curved guide rail, without an increase in the resistance to displacement at the bearings for the movable bearings is significantly felt: because under the pressure of the guide carriage indicate the waves the trained as a floating bearing bearings sufficiently.
  • the guide shafts are arranged in the grooves with sufficient play for dodging. are net. Only at the trained as a fixed bearing bearings, the guide shafts are fixed, that is, the guide shafts can be clamped, as it is also disclosed in DE 196 15 465 A1.
  • only two fixed bearings are provided on the curved guide rail, one at the beginning and one at the end. Between these fixed bearings, a required number of movable bearings can be provided.
  • the fixed bearings used in the invention correspond to the invention disclosed in DE 196 15 465 A1 clamping elements.
  • Figure 2 shows a cross section through the guide rail with mounted
  • Figure 3 shows a cross section through the guide rail with mounted
  • Figure 4 shows a section through a fixed bearing
  • Figure 5 shows a section through a floating bearing.
  • FIG. 1 shows a curved running track according to the invention in plan view.
  • a carriage 1 is mounted lijnsverschietons on a curved guide rail 2.
  • FIGS. 2 and 3 show cross sections through the guide rail 2 along the section lines M-II and M1-M1, as indicated in FIG. It can be seen from Figures 2 and 3, that the carriage 1 is provided with three profiled rollers 3, one of which is adjustable via a setting eccentric 4 that the carriage 1 free of play on the guide rail 2 runs.
  • the guide rail 2 has two parallel guide shafts 5, on which the rollers 3 roll.
  • the guide shafts 5 are fixed via bearing elements 6 to a base body (not shown here). These bearing elements 6 receive the guide shafts 5, as will be explained in more detail below.
  • the two bearing elements 6 are designed as a fixed bearing 7 at the beginning and at the end of the curved guide rail 2.
  • the arranged between these fixed bearings 7 bearing elements 6 are designed as floating bearing 8.
  • FIG. 4 shows one of the movable bearings 8 in longitudinal section. Trained as a one-piece component floating bearing 8 has two grooves 9, the open sides are facing away from each other. In both grooves 9, the guide shafts 5 indicated here only by dashed lines are received with all-round play. This game is dimensioned so large that the guide shafts 5 can yield during the passage of the guide carriage 1 such that the carriage 1 can be passed without significant increase in a displacement resistance along these movable bearings 8.
  • the floating bearing 8 is provided with a central passage opening 10 for receiving here not further illustrated fastening screws. By means of these fastening screws, the floating bearing 8 can be fixed to the already mentioned component.
  • Figure 5 shows the fixed bearing 7, as described in detail in DE 196 15 465 A1. From its shape, it corresponds largely to the previously described floating bearing 8. However, the fixed bearing 7 is made in two parts and composed of an upper part 11 and a lower part 12. The upper part 11 and the lower part 12 together form the two grooves 13, in which the guide shafts 5 are arranged. As in the case of the fixed bearing 7, a central through-opening 14 for carrying out a fastening screw 15 is also provided here in order to secure the fixed bearing 7 to the already thought to fix part. In addition to the fixation of the fixed bearing 7, the fastening screw 15 here has the task of pressing the upper part 11 against the lower part 12, so that the grooves 13 arranged in the guide shafts 5 are firmly clamped.
  • the two fixed bearing 7 specify the distance between the two guide shafts to each other.
  • the floating bearings 8 are designed such that the guide shafts 5 are indeed supported, but can still adapt to the carriage 1 in the raceway width. Manufacturing fluctuations can be compensated. A uniform running behavior between the two outer fixed bearings 7 is guaranteed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

L'invention concerne un rail de guidage cintré (2) pour un chariot de guidage (1) monté de manière à pouvoir se déplacer sur deux arbres de guidage (5) par le biais de galets de roulement (3), avec plusieurs éléments de palier (6) pour les arbres de guidage (5) disposés à distance les uns derrière les autres le long de la trajectoire de déplacement. Les éléments de palier (6) peuvent être fixés par des éléments de fixation sur un corps de base, certains des éléments de palier étant réalisés en tant que paliers fixes (7), et les autres éléments de palier, réalisés en tant que paliers libres (8), étant disposés entre ces paliers fixes (7). Les arbres de guidage (5) sont disposés de manière mobile dans les paliers libres (8) et sont fixés dans les paliers fixes (7).
PCT/EP2008/057763 2007-06-30 2008-06-19 Rail de guidage cintré WO2009003843A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710030506 DE102007030506A1 (de) 2007-06-30 2007-06-30 Gebogene Führungsschiene
DE102007030506.2 2007-06-30

Publications (2)

Publication Number Publication Date
WO2009003843A2 true WO2009003843A2 (fr) 2009-01-08
WO2009003843A3 WO2009003843A3 (fr) 2009-05-07

Family

ID=39951603

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/057763 WO2009003843A2 (fr) 2007-06-30 2008-06-19 Rail de guidage cintré

Country Status (2)

Country Link
DE (1) DE102007030506A1 (fr)
WO (1) WO2009003843A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108119541A (zh) * 2017-12-22 2018-06-05 佛山市工芯精密机械有限公司 一种滚珠槽在导轨上下面的曲线导轨装置
CN110055828A (zh) * 2019-04-28 2019-07-26 中铁二院工程集团有限责任公司 一种路堤大坡度齿轨铁路结构及构筑方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102852974B (zh) * 2012-10-11 2014-11-26 南京工艺装备制造有限公司 一种滚动曲线导轨副

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3842627A1 (de) * 1988-12-17 1990-06-21 Schaeffler Waelzlager Ohg Waelzfuehrung
DE19615465A1 (de) * 1996-04-19 1997-10-23 Schaeffler Waelzlager Kg Führungsschiene für einen Laufwagen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3504061A1 (de) 1985-02-07 1986-08-07 Werner Jacob Linearlagersystem und verfahren zur herstellung solcher systeme
DE8912165U1 (de) 1989-10-12 1989-11-23 Nadella-Wälzlager GmbH, 7000 Stuttgart Führungsvorrichtung
DE9206530U1 (de) 1992-05-14 1992-07-30 Nadella-Wälzlager GmbH, 7000 Stuttgart Führungssystem

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3842627A1 (de) * 1988-12-17 1990-06-21 Schaeffler Waelzlager Ohg Waelzfuehrung
DE19615465A1 (de) * 1996-04-19 1997-10-23 Schaeffler Waelzlager Kg Führungsschiene für einen Laufwagen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108119541A (zh) * 2017-12-22 2018-06-05 佛山市工芯精密机械有限公司 一种滚珠槽在导轨上下面的曲线导轨装置
CN108119541B (zh) * 2017-12-22 2019-09-06 佛山市工芯精密机械有限公司 一种滚珠槽在导轨上下面的曲线导轨装置
CN110055828A (zh) * 2019-04-28 2019-07-26 中铁二院工程集团有限责任公司 一种路堤大坡度齿轨铁路结构及构筑方法
CN110055828B (zh) * 2019-04-28 2023-09-26 中铁二院工程集团有限责任公司 一种路堤大坡度齿轨铁路结构的构筑方法

Also Published As

Publication number Publication date
DE102007030506A1 (de) 2009-01-08
WO2009003843A3 (fr) 2009-05-07

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