DE919857C - Light alloy hub for pulleys, wing and paddle wheels or the like. - Google Patents

Light alloy hub for pulleys, wing and paddle wheels or the like.

Info

Publication number
DE919857C
DE919857C DEU2190A DEU0002190A DE919857C DE 919857 C DE919857 C DE 919857C DE U2190 A DEU2190 A DE U2190A DE U0002190 A DEU0002190 A DE U0002190A DE 919857 C DE919857 C DE 919857C
Authority
DE
Germany
Prior art keywords
cast
paddle wheels
pulleys
wing
light alloy
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
Application number
DEU2190A
Other languages
German (de)
Inventor
Heinrich Schmitz
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.)
ULLNER U ULLNER GmbH
Original Assignee
ULLNER U ULLNER 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 ULLNER U ULLNER GmbH filed Critical ULLNER U ULLNER GmbH
Priority to DEU2190A priority Critical patent/DE919857C/en
Application granted granted Critical
Publication of DE919857C publication Critical patent/DE919857C/en
Expired 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
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)

Description

Die Erfindung betrifft eine Leichtmetallnabe für Riemenscheilben, Flügel- und Schaufelräder od. dgl. mit eingegossenen Schwermetalleinlagen. Die bisher bekannten Leichtmetallnaben dieser Art haben den Nachteil, daß sie durch den eingegossenen massiven Graugußkern zu schwer sind und daß dadurch die durch Leichtmetall erzielte Gewichtsverminderung wieder hinfällig geworden ist.The invention relates to a light metal hub for belt pulleys, Impellers and paddle wheels or the like with cast-in heavy metal inlays. So far known light metal hubs of this type have the disadvantage that they are cast by the massive gray cast iron core are too heavy and that thereby the achieved by light metal Weight loss has become obsolete again.

Dieses Problem hat in der Erfindung eine Lösung gefunden; sie besteht darin, daß an Stelle eines an sich bekannten, geschlüssenen Graugußkernes in die Leichtmetallnabenkörper zwei oder mehr güßeiserne oder Stahlsegmente beliebigen Querschnitts von verhältnismäßig geringem Gewicht eingegossen sind, die gleichzeitig zur Aufnahme der Befestigungsmittel bestimmt sind. Dadurch, daß an Stelle schwerer, massiver Graugußkerne nunmehr kleine Segmente beliebiger Form und von relativ geringem Gewicht Verwendung finden, bleibt die Wahrung geringsten Eigengewichts erhalten, während die als Befestigungselemente dienenden Keilnuten und Druckschrauben im härtesten Teil der Nabenkörper liegen.This problem has found a solution in the invention; she consists in that instead of a known, closed gray cast iron core in the Light alloy hub body any two or more cast iron or steel segments Cross-section of relatively low weight are cast at the same time are intended to accommodate the fasteners. Because instead of heavier, massive cast iron cores now small segments of any shape and of relatively small size Weight are used, the preservation of the lowest dead weight is maintained, while the keyways and pressure screws serving as fasteners are the hardest Part of the hub body.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Es zeigt Fig. I einte Nabe der Keilriemnenscheibe nach der Erfindung, Fig. 2 und 3 zwei Ausführungslbeispiele im Querschnitt, Fig. 4 und 5 die Vorbohrungen der Naben nach Fig. 2 und 3 im Querschnitt, Fig. 6 die Stahl- oder Gußeiseneinlagen in schaubildlicher Darstellung.Exemplary embodiments of the invention are shown in the drawing. It shows Fig. I a hub of the V-belt pulley according to the invention, Fig. 2 and 3 two exemplary embodiments in cross section, FIGS. 4 and 5 the pilot bores of the hubs 2 and 3 in cross section, FIG. 6 shows the steel or cast iron inserts in perspective Depiction.

Die Nabe b der Keilriemenscheibe a, die aus Leichtmetall besteht, ist mit symmetrisch zur Bohrung c angeordneten, aus Grauguß, Stahl od. dgl. bestehenden Einlagen, Segmenten od. dgl. d versehen, die in an sich bekannter Weise mit eingegossen sind. Die Form und Größe dieser Einlagen kann beliebig sein. In dem Ausführungsbeispiel der Fig. 2 und 4 haben sie Trapezform, während sie in dem Ausführungsbeispiel der Fig. 3 und 5 eine rechteckige Form aufweisen.The hub b of the V-belt pulley a, which is made of light metal, is arranged symmetrically to the bore c, made of gray cast iron, steel or the like. Existing Deposits, segments or the like. D provided, which are cast in a known manner are. The shape and size of these deposits can be any. In the embodiment 2 and 4 they have a trapezoidal shape, while in the embodiment of FIG Figs. 3 and 5 are rectangular in shape.

Die Fig. 4 und 5 zeigen die Vorbohrungen dieser Naben im Schnitt. Nachdem die Bohrung c für die Welle auf die endgültige Bohrung c' aufgeweitet ist (Fig.2 und 3), werden in dieser harten Einlage d die zur Befestigung auf der Welle dienenden Keilnuten e und die Bohrung f für die Druckschraube angebracht.4 and 5 show the pilot bores of these hubs in section. After the bore c for the shaft is expanded to the final bore c ' (Fig. 2 and 3), in this hard insert d are used for fastening on the shaft Serving keyways e and the hole f for the pressure screw attached.

In Fig. 6 sind die Segmente d aus hartem Material, und zwar die nach Fig. 2 und 4, im Schaubild dargestellt, wie sie in die Gipsform eingesetzt und dann mit Leichtmetall umgossen werden. Die Segmente d sind dabei durch Flansche verbunden, um sie in ihrer Lage zu halten.In Fig. 6, the segments d are made of hard material, namely those after Figures 2 and 4, shown in the diagram as they are inserted into the plaster mold and then be cast around with light metal. The segments d are connected by flanges, to keep them in place.

Claims (1)

PATENTANSPRUCH: Leichtmetallnabe für Riemenscheiben, Flügel-und Schaufelräder od. dgl. mit eingegossenen Schwermetalleinlagen, dadurch gekennzeichnet, daß an Stelle eines an sich bekannten, geschlossenen Graugußkernes in die Leichtmetallnabenkörper zwei oder mehr gußeiserne oder Stahlsegmente beliebigen Querschnitts von verhältnismäßig geringem Gewicht eingegossen sind, die gleichzeitig zur Aufnahme ,der Befestigungsmittel -bestimmt sind. Angezogene Druckschriften-: Deutsche Patentschrift Nr. 752 538; britische Patentschrift Nr. 510 32q..PATENT CLAIM: Light metal hub for belt pulleys, vane and paddle wheels or the like with cast-in heavy metal inserts, characterized in that instead of a known, closed gray cast iron core in the light metal hub body, two or more cast iron or steel segments of any cross-section of relatively low weight are cast at the same time for the recording, the fasteners are determined. Cited publications: German Patent No. 752 538; British Patent No. 510 32q ..
DEU2190A 1953-05-12 1953-05-12 Light alloy hub for pulleys, wing and paddle wheels or the like. Expired DE919857C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEU2190A DE919857C (en) 1953-05-12 1953-05-12 Light alloy hub for pulleys, wing and paddle wheels or the like.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEU2190A DE919857C (en) 1953-05-12 1953-05-12 Light alloy hub for pulleys, wing and paddle wheels or the like.

Publications (1)

Publication Number Publication Date
DE919857C true DE919857C (en) 1954-11-04

Family

ID=7565218

Family Applications (1)

Application Number Title Priority Date Filing Date
DEU2190A Expired DE919857C (en) 1953-05-12 1953-05-12 Light alloy hub for pulleys, wing and paddle wheels or the like.

Country Status (1)

Country Link
DE (1) DE919857C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB510324A (en) * 1938-01-28 1939-07-28 John Kenneth Wadsworth Baines Improvements relating to antifriction mountings for pulleys and like wheels
DE752538C (en) * 1938-06-05 1953-02-09 Hans Vogt Process for the production of machine parts subject to friction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB510324A (en) * 1938-01-28 1939-07-28 John Kenneth Wadsworth Baines Improvements relating to antifriction mountings for pulleys and like wheels
DE752538C (en) * 1938-06-05 1953-02-09 Hans Vogt Process for the production of machine parts subject to friction

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