DE448818C - Pulley - Google Patents
PulleyInfo
- 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
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
- F16H55/38—Means or measures for increasing adhesion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Belt Conveyors (AREA)
Description
»scheibe.
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)
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)
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 |
-
1925
- 1925-10-13 DE DEG65519D patent/DE448818C/en not_active Expired
Cited By (7)
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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