DE896742C - Equal pressure friction brake for shafts - Google Patents
Equal pressure friction brake for shaftsInfo
- Publication number
- DE896742C DE896742C DEM6731D DEM0006731D DE896742C DE 896742 C DE896742 C DE 896742C DE M6731 D DEM6731 D DE M6731D DE M0006731 D DEM0006731 D DE M0006731D DE 896742 C DE896742 C DE 896742C
- Authority
- DE
- Germany
- Prior art keywords
- shafts
- shaft
- equal pressure
- friction brake
- spring
- 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
- F16D49/00—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
- F16D49/02—Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like shaped as a helical band or coil with more than one turn, with or without intensification of the braking force by the tension of the band or contracting member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
Gleich;drückbremsen für Wellen sind bekännt. Man verwendet sie überall .dort, wo es auf eine gleichbleibende Bremskraft .ankommt, so. z. B. in Getrieben oder bei Maschinen, bei .denen mit :der Bremse ein Bewegungs- oder Schwingungsvorgang abgestimmt wird. Gleichdruckbremsen haben: so z. B. bei hochwertigen Textilmaschinen als Schleppkupplung für die Übertragung eines gleichbleib-enden Drehmomentes Anwendung gefunden.Same; push brakes for shafts are known. You use them everywhere .where it comes to a constant braking force, so. z. B. in transmissions or with machines, with .whose with: the brake a movement or oscillation process will be voted on. Equal pressure brakes have: B. in high-quality textile machines Use as a tow coupling for the transmission of a constant torque found.
Die H:auptaufgabe einer derartigen Gleichdruckreibungs!bremse besteht darin, unempfindlich zu sein gegen eine Veränderung des Reibungsfaktors, wie sie im Betrieb durch Verschmutzung, Verölung od. dgl. vorkommen kann.The main task of such a constant pressure friction brake is in being insensitive to a change in the friction factor like her Can occur during operation due to contamination, oily or the like.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine möglichst einfache Gleichdruckreibungsbremse für Wellen zu schaffen.The present invention is based on the object as possible to create simple equal pressure friction brake for shafts.
Neuheitsgemäß ist um ,die abzubremsende Welle eine Schraubenfeder gelegt, deren Irinendurchmesse:r kleiner als der Außendurchmesser der Welle ist, so daß sie die Welle mit Verspannung umfaßt.As a novelty, the shaft to be braked is a helical spring laid, whose irin diameter: r is smaller than the outer diameter of the shaft, so that it embraces the shaft with tension.
Das eine Ende der Schraubenfeder -ist hierbei ortsfest gehalten, und die Welle dreht sich entgegen dem nach dem freien Ende der Feder gerichteten Wickelsinn. DieVerwendüng einer aus einem Bandstahl gewickelten Feder vergrößert die Reibfläche. In der einen Drehrichtung kann ein Drehmoment übertragen werden, .das so groß ist wie die mechanische Festigkeit des Drahtes (die Verbindung zurrt sich fest).One end of the helical spring is held stationary, and the shaft rotates against the direction of the winding towards the free end of the spring. The use of a spring wound from a steel strip increases the friction surface. In one direction of rotation, a torque can be transmitted that is so large like the mechanical strength of the wire (the connection is tight).
Das übertragbare Bremsmoment ergibt sich aus dem Reibungsfaktor und der Anpreßkraft der Windungen. In der-Zeichnung ist ein Ausführung'sbeispiel der Erfindung dargestellt.The transferable braking torque results from the friction factor and the contact pressure of the windings. In the drawing is an embodiment of the Invention shown.
Abb. i zeigt schematisch die Anwendung einer Schraubenfeder aus Runddraht, Abb. 2 eine Bändfeder.Fig. I shows schematically the application of a coil spring made of round wire, Fig. 2 a ribbon spring.
Mit i ist die Welle bezeichnet, die abgebremst werden soll, 2 stellt die Feder dar, welche aufgedreht auf die Welle i gebracht ist und diese dann mit einer gewissen Vorspannung unter Reibungsschluß umfaßt. Das in der Zeichnung rechte Ende der.Feder ist ortsfest gehalten.The wave that is to be braked is denoted by i, 2 represents represents the spring, which is screwed up on the shaft i and then with it includes a certain bias under frictional engagement. The one on the right in the drawing The end of the spring is held in place.
Die Welle z dreht sich entgegen dem nach dem freien Ende 3' der Feder 2 gerichteten Wickelsinn, so daß an der abzubremsenden Welle zufolge des zwischen Feder 2 und Welle i bestehenden Reibungsschlusses eine Bremskraft auftritt, welche sich aus dem Reibungsfaktor und der Summe der Anpreßkraft der Windungen ergibt.The shaft z rotates opposite to the free end 3 'of the spring 2 directional winding, so that on the shaft to be braked according to the between Spring 2 and shaft i existing frictional engagement a braking force occurs, which results from the friction factor and the sum of the contact pressure of the windings.
Eine Erhöhung des Bremsmomentes ist nicht möglich; da darüber hinaus ein Aufdrehen der Feder eintritt.It is not possible to increase the braking torque; there beyond an untwisting of the spring occurs.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM6731D DE896742C (en) | 1943-05-18 | 1943-05-18 | Equal pressure friction brake for shafts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM6731D DE896742C (en) | 1943-05-18 | 1943-05-18 | Equal pressure friction brake for shafts |
Publications (1)
Publication Number | Publication Date |
---|---|
DE896742C true DE896742C (en) | 1953-11-16 |
Family
ID=7293549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM6731D Expired DE896742C (en) | 1943-05-18 | 1943-05-18 | Equal pressure friction brake for shafts |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE896742C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0611652A1 (en) * | 1993-02-19 | 1994-08-24 | MAN Roland Druckmaschinen AG | Cleaning device |
FR2923099A1 (en) * | 2007-10-29 | 2009-05-01 | Areva T & D Ag | ELECTROMECHANICAL ACTUATOR WITH SPRING SPIRE SPRING-TYPE MECHANICAL BRAKE |
-
1943
- 1943-05-18 DE DEM6731D patent/DE896742C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0611652A1 (en) * | 1993-02-19 | 1994-08-24 | MAN Roland Druckmaschinen AG | Cleaning device |
FR2923099A1 (en) * | 2007-10-29 | 2009-05-01 | Areva T & D Ag | ELECTROMECHANICAL ACTUATOR WITH SPRING SPIRE SPRING-TYPE MECHANICAL BRAKE |
EP2055980A1 (en) * | 2007-10-29 | 2009-05-06 | AREVA T&D AG | Electromagnetic actuator equipped with a mechanical brake of the type with a wound-coil spring |
US8356700B2 (en) | 2007-10-29 | 2013-01-22 | Areva T&O AG | Electro-mechanical actuator equipped with a mechanical brake of coil spring type |
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