DE448818C - Pulley - Google Patents

Pulley

Info

Publication number
DE448818C
DE448818C DEG65519D DEG0065519D DE448818C DE 448818 C DE448818 C DE 448818C DE G65519 D DEG65519 D DE G65519D DE G0065519 D DEG0065519 D DE G0065519D DE 448818 C DE448818 C DE 448818C
Authority
DE
Germany
Prior art keywords
belt
cavity
rim
negative pressure
pulley
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
DEG65519D
Other languages
German (de)
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.)
ADOFPHE GOTTRENX
Original Assignee
ADOFPHE GOTTRENX
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 ADOFPHE GOTTRENX filed Critical ADOFPHE GOTTRENX
Application granted granted Critical
Publication of DE448818C publication Critical patent/DE448818C/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
    • F16H55/32Friction members
    • F16H55/36Pulleys
    • F16H55/38Means or measures for increasing adhesion

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Belt Conveyors (AREA)

Description

»scheibe. raum des Kranzes und andererseits mit der Außenluft in Verbindung seht, wobei dieser so gebildete ringförmige Hohlraum von winkeligem Querschnitte durch radiale Scheidewände in Kammern unterteilt ist, zu dem Zwecke, in jeder Kammer, Renn sie durch den Riemen abgeschlossen wird, einen Unterdruck zu erzeugen."disc. See the space of the ring and on the other hand with the outside air in communication, this ring-shaped cavity of angular cross-section thus formed is divided into chambers by radial partitions, for the purpose of creating a negative pressure in each chamber, when it is closed by the belt.

Auf der Zeichnung ist der Erfindungsgegenstand in beispielsweiser Ausführungsform- dargestellt.The subject of the invention is shown in the drawing by way of example Embodiment- shown.

Es zeigen Abb. i einen senkrechten Achsialschnitt, Abb. z einen Schnitt nach der Linie II-II der Abb. i, Abb. 3 einen Schnitt nach der Linie III-III der Abb. i.Fig. I shows a vertical axial section, Fig. Z shows a section according to the line II-II of Fig. i, Fig. 3 is a section along the line III-III of Fig.i.

Der Kranz der Riemscheibe A, auf welcher der Riemen B läuft, zeigt eine ringförmige Aushöhlung a. Letztere steht durch eine Anzahl von Löchern c von geeignetem Querschnitt in der Kranzoberfläche mit der Umgebung, also der Außenluft, in Verbindung. Der Scheibenkranz weist an der einen Seite einen umlaufenden winkelig abgebogenen, hoh len Wulst auf, dessen Hohlraum C mit dem einseitig geschlossenen Hohlraum des Scheibenkranzes in Verbindung steht bzw. sich unmittelbar an diesen anschließt, während derselbe auf der anderen Seite zur Außenluft hin offen ist. Durch radial gestellte Scheidewände b, d, welche den so gebildeten Hohlraum in dem Kranz und in dem Wulst durchsetzen, werden zehn Kammern a1, a2, a3, a4, a5, a6, a7, a3, a9, a10 gebildet. Diese radialen Scheidewände b, d stellen also gewissermaßen die Schaufeln eines Ventilators dar. Bei der Drehung der Riemscheibe arbeitet diese Einrichtung als Ventilator, und die Zentrifugalkraft erzeugt eine Luftleere in den Kammern, deren Löcher c durch den Riemen B abgedeckt sind. Somit wird letzterer durch den äußeren Luftdruck gegen den Kranz der Riemscheibe festgepreßt und so die Adhäsion vergrößert, so daß ein Rutschen oder Schlüpfen des Riemens verhindert wird.The rim of the pulley A, on which the belt B runs, shows an annular cavity a. The latter is in communication with the environment, that is to say with the outside air, through a number of holes c of suitable cross-section in the surface of the rim. The disc rim has on one side a circumferential, angularly bent, Hohl len bead, the cavity C of which is connected to the cavity of the disc rim closed on one side or directly adjoins this, while the same is open to the outside air on the other side. Ten chambers a1, a2, a3, a4, a5, a6, a7, a3, a9, a10 are formed by radially positioned partitions b, d, which penetrate the cavity thus formed in the rim and in the bead. These radial partitions b, d represent, so to speak, the blades of a fan. When the pulley rotates, this device works as a fan, and the centrifugal force creates an air void in the chambers, the holes c of which are covered by the belt B. Thus, the latter is pressed tightly against the rim of the pulley by the external air pressure and so the adhesion is increased, so that slipping or slipping of the belt is prevented.

Die Erfindung kann auch sinngemäß auf die sogenannten »Leni#criemenantriebe« angewendet werden, bei denen der Riemen den größten Teil der Kranzoberfläche umschlingt.The invention can also be applied analogously to the so-called "Leni belt drives" can be used in which the belt wraps around most of the rim surface.

Claims (1)

PATENTANSPRUCH: Riemscheibe mit einer Einrichtung zur Erzeugung von Unterdruck zwecks Adhäsion des Riemens, dadurch gekennzeichnet, daß der hohl ausgebildete Außenkranz der Riemscheibe, welcher an der Oberfläche ausmündende Durchbohrungen von geeignetem - Querschnitte und in geeigneter Anzahl aufweist, an seiner offenen Randseite einen umlaufenden winkelig abgebogenen Wulst hat, dessen Aushöhlung einerseits an den Hohlraum des Kranzes sich anschließt und andererseits mit der Außenluft in Verbindung steht, wobei dieser so gebildete ringförmige Hohlraum von winkeligem Querschnitt durch radiale Scheidewände in Kammern unterteilt ist, zu dem Zwecke, in jeder Kammer; wenn diese durch den Riemen abgeschlossen ist, -einen Unterdruck zu erzeugen. PATENT CLAIM: Belt pulley with a device for generating negative pressure for the purpose of adhesion of the belt, characterized in that the hollow outer rim of the belt pulley, which has holes of suitable cross-sections opening out on the surface and in a suitable number, has a circumferential, angularly bent surface on its open edge Has bead, the cavity of which adjoins the cavity of the rim on the one hand and communicates with the outside air on the other hand, this annular cavity thus formed of angular cross-section being divided into chambers by radial partitions, for the purpose of each chamber; when this is closed by the belt, -generate a negative pressure.
DEG65519D 1925-03-31 1925-10-13 Pulley Expired DE448818C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH448818X 1925-03-31

Publications (1)

Publication Number Publication Date
DE448818C true DE448818C (en) 1927-08-25

Family

ID=4515411

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG65519D Expired DE448818C (en) 1925-03-31 1925-10-13 Pulley

Country Status (1)

Country Link
DE (1) DE448818C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1013219B (en) * 1954-12-13 1957-08-01 Walter Weber Endless drive belt with suction chambers as an intermediate drive for conveyor belts
DE1028041B (en) * 1955-01-19 1958-04-10 Eickhoff Geb Conveyor belt drive drum with suction holes
DE1138292B (en) * 1956-04-07 1962-10-18 Svenska Flaektfabriken Ab Device for transferring the front end of a material web to another transport level
US3119140A (en) * 1962-01-23 1964-01-28 Honeywell Regulator Co Tape cleaning device
DE1550654B1 (en) * 1965-01-15 1970-06-18 Bertin & Cie Device for transferring a flexible traction device to a support body
FR2585431A1 (en) * 1985-07-26 1987-01-30 Centre Techn Ind Mecanique LITTLE NOISE TRANSMISSION BY PULLEYS AND BELT

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1013219B (en) * 1954-12-13 1957-08-01 Walter Weber Endless drive belt with suction chambers as an intermediate drive for conveyor belts
DE1028041B (en) * 1955-01-19 1958-04-10 Eickhoff Geb Conveyor belt drive drum with suction holes
DE1138292B (en) * 1956-04-07 1962-10-18 Svenska Flaektfabriken Ab Device for transferring the front end of a material web to another transport level
US3119140A (en) * 1962-01-23 1964-01-28 Honeywell Regulator Co Tape cleaning device
DE1550654B1 (en) * 1965-01-15 1970-06-18 Bertin & Cie Device for transferring a flexible traction device to a support body
FR2585431A1 (en) * 1985-07-26 1987-01-30 Centre Techn Ind Mecanique LITTLE NOISE TRANSMISSION BY PULLEYS AND BELT
EP0211730A1 (en) * 1985-07-26 1987-02-25 Centre Technique Des Industries Mecaniques Low-noise belt drive

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