DE2720358A1 - Cable pulley supported by rolling bearing - has races provided by wires in pulley hub and inner ring - Google Patents

Cable pulley supported by rolling bearing - has races provided by wires in pulley hub and inner ring

Info

Publication number
DE2720358A1
DE2720358A1 DE19772720358 DE2720358A DE2720358A1 DE 2720358 A1 DE2720358 A1 DE 2720358A1 DE 19772720358 DE19772720358 DE 19772720358 DE 2720358 A DE2720358 A DE 2720358A DE 2720358 A1 DE2720358 A1 DE 2720358A1
Authority
DE
Germany
Prior art keywords
inner ring
wires
hub
pulley
roll
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.)
Withdrawn
Application number
DE19772720358
Other languages
German (de)
Inventor
Werner Jacob
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.)
IHO Holding GmbH and Co KG
Original Assignee
Industriewerk Schaeffler OHG
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 Industriewerk Schaeffler OHG filed Critical Industriewerk Schaeffler OHG
Priority to DE19772720358 priority Critical patent/DE2720358A1/en
Publication of DE2720358A1 publication Critical patent/DE2720358A1/en
Withdrawn legal-status Critical Current

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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • 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
    • 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
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
    • F16C19/166—Four-point-contact ball bearings
    • 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
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
    • F16C19/361—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with cylindrical rollers
    • F16C19/362—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with cylindrical rollers the rollers being crossed within the single row
    • 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
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/63—Gears with belts and pulleys

Abstract

The cable pulley (1) has a hub (2) supported on a bush (4, 5) by a rolling bearing. Tracks for the rolling elements (10) are constituted by a pair of wires (8) in a groove (3) in the hub and a pair of wires (9) in a confronting groove (3) in the ring. Each groove is of rectangular section, the wires lying in the corners of the section. The rolling elements may be cylindrical rollers (10) alternately offset by 90 deg.. The bush may be made in two axial halves (4, 5) joining at the plane of symmetry of the bearing and connected by screws (6).

Description

Seilscheibe mit Wälzlagerung Sheave with roller bearings

Die Erfindung betrifft eine Seilscheibe, bei der zwischen einer inneren Nabe und einem konzentrisch in dieser angeordneten Innenring ein Wälzlager angeordnet ist.The invention relates to a pulley in which between an inner Hub and a concentric inner ring arranged in this a roller bearing is.

Bei Seilscheiben dieser Art werden zur Lagerung meist mehrreihige Rollenlager verwendet, deren Außenring in die Nabe der Seilscheibe eingesetzt wird. Zur Erzielung einer ausreichenden Tragfähigkeit genügen in diesen Fällen Wälzlager mit relativ geringen Durchmessern. Die Innenringe der Wälzlager werden auf einer Welle angeordnet, wobei in manchen Fällen eine größere Anzahl, zum Teil 8 bis 10 derartiger Seilscheiben nebeneinander auf einer gemeinsamen Welle angeordnet werden. Bei der sich dabei ergebenden relativ dünnen Welle ist es erforderlich, diese zwischen den einzelnen Seilscheiben oder auch zwischen Seilscheibenpaaren nochmals abzustützen. Dies bedingt eine relativ aufwendige Konstruktion und erfordert einen größeren axialen Bauraum, als er an sich erforderlich wäre. Man könnte diesen Nachteil dadurch beseitigen, daß man die Wälzlager im Durchmesser vergrößert, so daß man diese auf eine dickere Welle aufsetzen könnte. Dies würde jedoch bedeuten, daß die Wälzlager um ein Vielfaches überdimensioniert wären, was man mit einem sehr hohen Preis bezahlen müßte.In the case of rope sheaves of this type, multiple rows are usually used for storage Roller bearings are used, the outer ring of which is inserted into the hub of the pulley. In these cases, roller bearings are sufficient to achieve a sufficient load-bearing capacity with relatively small diameters. The inner rings of the rolling bearings are on a Shaft arranged, in some cases a larger number, sometimes 8 to 10 such pulleys are arranged side by side on a common shaft. With the resulting relatively thin shaft, it is necessary to place them between to support the individual sheaves or between pairs of sheaves. This requires a relatively complex construction and requires a larger axial Installation space than would be required per se. This disadvantage could be eliminated by that one increases the diameter of the roller bearings so that they are thicker Wave could touch down. However, this would mean that the rolling bearings many times over would be oversized, which one would have to pay with a very high price.

Der Erfindung liegt die Aufgabe zugrunde, eine Wälzlagerung zu schaffen, die - ohne daß sich der Preis erhöht -größere Lagerdurchmesser bei ausreichender Tragfähigkeit erbringt.The invention is based on the object of creating a roller bearing, which - without increasing the price - larger bearing diameters with sufficient Provides sustainability.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die einander zugekehrten Mantelflächen von Nabe und Innenring mit Nuten versehen sind, in die jeweils zwei Laufdrähte eingelegt sind, auf denen Wälzkörper abrollen.This object is achieved according to the invention in that the one another facing lateral surfaces of the hub and inner ring are provided with grooves into which two running wires are inserted, on which rolling elements roll.

Eine solche Lagerausführung hat gegenüber den bekannten den Vorteil, daß der Lageraußenring entfällt. An die Stelle der Lagerringe treten einfache Laufdrähte, die preiswert herstellbar sind, und die in Werkstoffe eingelegt werden können, die von sich aus keine genügende Tragfähigkeit aufweisen. So kann z.B. die Seilscheibe aus Leichtmetall hergestellt sein, was aus Gewichtsgründen, insbesondere bei Anwendung einer Vielzahl von Seilscheiben, sehr zweckmäßig ist.Such a bearing design has the advantage over the known ones that the bearing outer ring is omitted. The bearing rings are replaced by simple running wires, which are inexpensive to manufacture and which can be inserted into materials that do not have sufficient load-bearing capacity by themselves. For example, the pulley be made of light metal, which is due to weight reasons, especially when using a variety of pulleys, is very useful.

Durch den einfachen Lageraufbau ist es in einfacher Weise möglich, den Lagerdurchmesser so weit zu vergrößern, daß die Innenringe auf eine Welle oder auf ein dickwandiges Rohr von solchem Durchmesser aufgesetzt werden können, daß Abstützungen zwischen den einzelnen Seischeiben nicht mehr erforderlich sind. Man kann also ohne Verteuerung der Wälzlagerung und ohne Einbuße an Tragfähigkeit die Zwischenabstützungen der Welle entfallen lassen.Due to the simple structure of the warehouse, it is possible in a simple manner to enlarge the bearing diameter so much that the inner rings on a shaft or can be placed on a thick-walled tube of such a diameter that Supports between the individual Seischeiben are no longer required. Man can therefore without increasing the cost of rolling bearings and without sacrificing load-bearing capacity Eliminate intermediate supports of the shaft.

Im einfachsten Falle können Laufdrähte von annähernd kreisförmigem Querschnitt verwendet werden, auf denen Kugeln abrollen. Für höhere Belastungen ist es jedoch auch möglich, Laufdrähte von ungefähr halbkreisförmigem Querschnittsprofil zu verwenden, auf denen zylindrische Wälzkörper abrollen, deren Achsen abwechselnd unter einem Winkel von 900 zueinander stehen.In the simplest case, running wires can be approximately circular Cross-section can be used on which balls roll. For higher loads however, it is also possible to use running wires with an approximately semicircular cross-sectional profile to use, on which cylindrical rolling elements roll, their axes alternately are at an angle of 900 to each other.

Um diese Lagerung montieren zu können, kann der Innenring im Bereich der Nut in einer quer zur Achse verlaufenden Ebene geteilt sein und die beiden Ringhälften können durch über den Umfang verteilte Schrauben miteinander verbunden werden.In order to be able to mount this bearing, the inner ring can be in the area the groove be divided in a plane running transversely to the axis and the two ring halves can be connected to each other by screws distributed over the circumference.

In der Zeichnung sind Ausführungsbeispiele der Erfindung im Längsschnitt dargestellt.In the drawing, exemplary embodiments of the invention are shown in longitudinal section shown.

Figur 1 zeigt eine Seilscheibe 1, welche in ihrem mittleren Bereich die Nabe 2 aufweist. Diese ist in ihrer Bohrung mit einer Nut 3 versehen. Der Innenring ist gebildet aus den beiden Hälften 4 und 5, die durch Schrauben 6 miteinander verbunden sind. Diese beiden Innenringhälften schließen miteinander die Nut 7 ein. In die einander gegenüberliegenden Nuten 3 und 7 sind die Laufdrähte 8 und 9 eingelegt, auf denen die Rollen 10 abwälzen. Zur Abdichtung des Spaltes zwischen der Nabe 2 und den Innenringhälften 4 bzw. 5 dienen die Dichtungen 11, die in Nuten der Innenringhälften 4 bzw. 5 eingesetzt sind und stirnseitig gleitend an der Nabe 2 abdichten.Figure 1 shows a pulley 1, which in its central area the hub 2 has. This is provided with a groove 3 in its bore. The inner ring is formed from the two halves 4 and 5, which are connected to one another by screws 6 are. These two inner ring halves enclose the groove 7 with one another. In the opposing grooves 3 and 7, the running wires 8 and 9 are inserted, on which the rollers 10 roll. To seal the gap between the hub 2 and the inner ring halves 4 and 5, the seals 11 are used, which are in grooves of the inner ring halves 4 or 5 are inserted and seal on the hub 2 on the front side.

Figur 2 zeigt in einem Ausschnitt eine Variante der Wälzlagerung. Dabei sind in die Nuten 3 bzw. 7 Laufdrähte 12 und 13 von nahezu kreisförmigem Querschnittsprofil eingelegt, auf denen die Kugeln 14 abrollen. Im übrigen entspricht die Konstruktion der in Figur 1 dargestellten.FIG. 2 shows a variant of the roller bearing in a detail. In the grooves 3 and 7 running wires 12 and 13 are of an almost circular cross-sectional profile inserted, on which the balls 14 roll. Otherwise the construction corresponds that shown in FIG.

Claims (4)

Ansprüche U. Seilscheibe, bei der zwischen einer inneren Nabe und einem konzentrisch in dieser angeordneten Innenring ein Wälzlager angeordnet ist, dadurch gekennzeichnet, daß die einander zugekehrten Mantelflächen von Nabe (2) und Innenring (4, 5) mit Nuten (3, 7) versehen sind, in die jeweils zwei Laufdrähte (8, 9; 12, 13) eingelegt sind, auf denen Wälzkörper (10, 14) abrollen. Claims U. pulley, in which between an inner hub and a roller bearing is arranged concentrically in this inner ring, characterized in that the mutually facing lateral surfaces of the hub (2) and inner ring (4, 5) are provided with grooves (3, 7), in each of which two running wires (8, 9; 12, 13) are inserted, on which rolling elements (10, 14) roll. 2. Seilscheibe nach Anspruch 1, dadurch gekennzeichnet, daß die Laufdrähte (12, 13) annähernd kreisförmigen Querschnitt besitzen und auf ihnen Kugeln (14) abrollen. 2. Rope sheave according to claim 1, characterized in that the running wires (12, 13) have an approximately circular cross-section and balls (14) roll off. 3. Seilscheibe nach Anspruch 1, dadurch gekennzeichnet, daß die Laufdrähte (8, 9) ein ungefähr halbkreisförmiges Querschnittsprofil aufweisen und auf ihnen zylindrische Wälzkörper (10) abrollen, deren Achsen abwechselnd unter einem Winkel von 900 zueinander stehen. 3. Pulley according to claim 1, characterized in that the running wires (8, 9) have an approximately semicircular cross-sectional profile and on them roll cylindrical rolling elements (10), the axes of which alternate at an angle of 900 to each other. 4. Seilscheibe nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß der Innenring im Bereich der Nut (7) in einer quer zur Achse verlaufenden Ebene geteilt ist und daß die beiden Ringhälften (4, 5) durch über den Umfang verteilte Schrauben (6) miteinander verbunden sind. 4. pulley according to claim 1, 2 or 3, characterized in that that the inner ring in the area of the groove (7) in a plane extending transversely to the axis is divided and that the two ring halves (4, 5) distributed over the circumference Screws (6) are connected to each other.
DE19772720358 1977-05-06 1977-05-06 Cable pulley supported by rolling bearing - has races provided by wires in pulley hub and inner ring Withdrawn DE2720358A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772720358 DE2720358A1 (en) 1977-05-06 1977-05-06 Cable pulley supported by rolling bearing - has races provided by wires in pulley hub and inner ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772720358 DE2720358A1 (en) 1977-05-06 1977-05-06 Cable pulley supported by rolling bearing - has races provided by wires in pulley hub and inner ring

Publications (1)

Publication Number Publication Date
DE2720358A1 true DE2720358A1 (en) 1978-11-16

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ID=6008222

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772720358 Withdrawn DE2720358A1 (en) 1977-05-06 1977-05-06 Cable pulley supported by rolling bearing - has races provided by wires in pulley hub and inner ring

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2760811A1 (en) * 1997-03-11 1998-09-18 Christian Terreaux Pulley wheel for cord or cable
DE20200241U1 (en) * 2002-01-09 2003-05-22 Skf Ab roller bearing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2760811A1 (en) * 1997-03-11 1998-09-18 Christian Terreaux Pulley wheel for cord or cable
DE20200241U1 (en) * 2002-01-09 2003-05-22 Skf Ab roller bearing

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