DE808017C - Elastic coupling, preferably for the transmission of smaller torques at high speeds between two center-offset shafts - Google Patents
Elastic coupling, preferably for the transmission of smaller torques at high speeds between two center-offset shaftsInfo
- Publication number
- DE808017C DE808017C DEP16839A DEP0016839A DE808017C DE 808017 C DE808017 C DE 808017C DE P16839 A DEP16839 A DE P16839A DE P0016839 A DEP0016839 A DE P0016839A DE 808017 C DE808017 C DE 808017C
- Authority
- DE
- Germany
- Prior art keywords
- high speeds
- center
- elastic coupling
- shafts
- transmission
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/72—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts
- F16D3/74—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts the intermediate member or members being made of rubber or other rubber-like flexible material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flexible Shafts (AREA)
Description
Die Erfindung betrifft eine elastische Kupplung, vorzugsweise zur Übertragung kleinerer Drehmomente bei hohen Drehzahlen zwischen zwei mittenversetzten Wellen.The invention relates to an elastic coupling, preferably for Transmission of smaller torques at high speeds between two offset centers Waves.
Die Aufgabe der Erfindung besteht darin, eine einfache Kupplung mit geringem Aufwand zu schaffen. Diese Aufgabe wird gelöst durch einen auf die Enden der Wellen fest aufgeschobenen elastischen Schlauch mit einer in seinem Innern liegenden Versteifungswelle, die mit kugeligen Enden möglichst spielfrei in zylindrischen Bohrungen der Wellenenden gelagert ist.The object of the invention is to provide a simple coupling with to create with little effort. This task is solved by one on the ends of the waves firmly pushed on elastic hose with a lying inside Stiffening shaft with spherical ends with as little play as possible in cylindrical ones Bores of the shaft ends is stored.
In der Zeichnung ist eine Ausführungsform der Erfindung beispielsweise dargestellt.In the drawing, an embodiment of the invention is for example shown.
Die Abbildung zeigt zwei Wellen i und 2, deren Mitten um das Maß a gegeneinander versetzt sind. Beim dargestellten Ausführungsbeispiel ist die Welle 2 z. B. die Arbeitsspindel einer Feinbohrmaschine. Die Arbeitsspindel 2 muß wegen der Mittenversetzung a, die durch Ungenauigkeiten bei der Herstellung und durch zwangsläufige Arbeitsbewegungen der Arbeitsspindel entsteht, von der Welle i über eine elastische Kupplung angetrieben werden. Die elastische Kupplung wird gebildet durch einen elastischen Schlauch 3, der auf die Enden der Wellen i und 2 fest aufgeschoben ist. Der Schlauch kann auf den Wellenenden durch seine eigene Spannung haften. Er kann aber auch durch ein Verfahren bekannter Art mit den Wellen eine feste Verbindung eingehen. Der Schlauch 3 wird zweckmäßig aus ölbeständigem Werkstoff, wie z. B. aus synthetischem Gummi, Polyvinylchlorid o. dgl., hergestellt und ist gewebefrei. Außen ist der Schlauch schlagfrei überschliffen. Die elastische Kupplung der Wellen i und 2 durch den Schlauch 3 ist vorzugsweise geeignet zur Übertragung hoher Drehzahlen, so wie sie bei Werkzeugmaschinen beim Bohren und Schleifen vorkommen. Bei diesen Arbeitsvorgängen sind Drehzahlen voll 3000 bis .4o ooo Umdrehungen pro Minute üblich. Um den Schlauch 3 gegen Flatterbewegungen durch die Fliehkraft zu schützen, ist im Innern des Schlauches eine Versteifungswelle d vorgesehen. Die Versteifungswelle q. hat kugelige Enden 5, die möglichst spielfrei in zylindrischen Bohrungen 6 der Wellen i und 2 gelagert sind. Die kugeligen Enden 5 sind frei drehbar in den Bohrungen 6 gelagert, so daß das Drehmoment nur vom Schlauch 3 übertragen wird. Die Kupplung der Wellen i und 2 durch den Schlauch 3 gleicht daher nicht nur die Mittenversetzung a aus, sondern ist auch drehelastisch. Die kugeligen Enden 5 und die Bohrungen 6 werden zweckmäßig gehärtet und genau ineinander eingeschliffen. Die Welle i wird durch eine Riemenscheibe 7 angetrieben und ist in Lagern 8 gelagert. Die Lager 8 sind in dem ortsfesten Gehäuse 9 gehalten. Die Welle 2 ist mittels eines Lagers io in einem Gehäuse i i gelagert, das nur: zum Teil dargestellt ist.The figure shows two shafts i and 2, the centers of which are offset from one another by the dimension a. In the illustrated embodiment, the shaft 2 is z. B. the work spindle of a fine boring machine. The work spindle 2 has to be driven by the shaft i via an elastic coupling because of the center offset a, which arises from inaccuracies in the manufacture and from inevitable working movements of the work spindle. The elastic coupling is formed by an elastic hose 3 which is pushed firmly onto the ends of the shafts i and 2. The hose can stick to the shaft ends due to its own tension. However, it can also establish a permanent connection with the shafts by a method of a known type. The hose 3 is expediently made of oil-resistant material, such as. B. made of synthetic rubber, polyvinyl chloride o. The like. Made and is fabric-free. The outside of the hose is smoothed without impact. The elastic coupling of the shafts i and 2 through the hose 3 is preferably suitable for the transmission of high speeds, such as occur in machine tools when drilling and grinding. In these operations, speeds of 3,000 to 40,000 revolutions per minute are common. In order to protect the hose 3 against fluttering movements caused by centrifugal force, a stiffening shaft d is provided in the interior of the hose. The stiffening shaft q. has spherical ends 5, which are mounted in cylindrical bores 6 of shafts i and 2 with as little play as possible. The spherical ends 5 are freely rotatable in the bores 6 so that the torque is only transmitted by the hose 3. The coupling of the shafts i and 2 by the hose 3 therefore not only compensates for the center offset a, but is also torsionally flexible. The spherical ends 5 and the bores 6 are expediently hardened and precisely ground into one another. The shaft i is driven by a belt pulley 7 and is supported in bearings 8. The bearings 8 are held in the stationary housing 9. The shaft 2 is supported by means of a bearing io in a housing ii, which is only shown in part.
Die erfindungsgemäße elastische Kupplung gestattet auch eine Hinundherbewegung der Welle 2 sowohl während des Stillstandes als auch während des Betriebes. Sie ist nicht auf das dargestellte Ausführungsbeispiel beschränkt, sondern überall dort mit Erfolg anwendbar, wo die erfindungsgemäße Aufgabe auftritt.The elastic coupling according to the invention also allows a reciprocating movement of the shaft 2 both during standstill and during operation. she is not limited to the illustrated embodiment, but everywhere there usable with success where the object of the invention occurs.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP16839A DE808017C (en) | 1948-10-03 | 1948-10-03 | Elastic coupling, preferably for the transmission of smaller torques at high speeds between two center-offset shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP16839A DE808017C (en) | 1948-10-03 | 1948-10-03 | Elastic coupling, preferably for the transmission of smaller torques at high speeds between two center-offset shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE808017C true DE808017C (en) | 1951-07-09 |
Family
ID=7366237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP16839A Expired DE808017C (en) | 1948-10-03 | 1948-10-03 | Elastic coupling, preferably for the transmission of smaller torques at high speeds between two center-offset shafts |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE808017C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2872225A (en) * | 1957-02-13 | 1959-02-03 | Comptometer Corp | Flexible coupling for shafts |
| DE1113367B (en) * | 1957-08-05 | 1961-08-31 | Gen Motors Corp | Drive shaft for motor vehicles |
| US3057647A (en) * | 1961-01-24 | 1962-10-09 | Gen Time Corp | Shaft coupler |
| US3395552A (en) * | 1966-02-01 | 1968-08-06 | American Air Filter Co | Power transmitting flexible coupling |
-
1948
- 1948-10-03 DE DEP16839A patent/DE808017C/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2872225A (en) * | 1957-02-13 | 1959-02-03 | Comptometer Corp | Flexible coupling for shafts |
| DE1113367B (en) * | 1957-08-05 | 1961-08-31 | Gen Motors Corp | Drive shaft for motor vehicles |
| US3057647A (en) * | 1961-01-24 | 1962-10-09 | Gen Time Corp | Shaft coupler |
| US3395552A (en) * | 1966-02-01 | 1968-08-06 | American Air Filter Co | Power transmitting flexible coupling |
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