DE896742C - Equal pressure friction brake for shafts - Google Patents

Equal pressure friction brake for shafts

Info

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
Application number
DEM6731D
Other languages
German (de)
Inventor
Helmut Dr-Ing Gelling
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.)
Mauser Werke AG
Original Assignee
Mauser Werke AG
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 Mauser Werke AG filed Critical Mauser Werke AG
Priority to DEM6731D priority Critical patent/DE896742C/en
Application granted granted Critical
Publication of DE896742C publication Critical patent/DE896742C/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
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D49/00Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like
    • F16D49/02Brakes 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)

PATENTANSPRÜCHE. i. Gleichdruckrei'bungsbremse für Wellen; gekennzeichnet durch eine die .abzubremsende Welle (i) mit Verdrehvo@rspannung umfassende Schraubenfeder (2), deren eines Ende ortsfest gehalten ist und deren nach ihrem freien Ende gerichteter Wickelsinn der Drehung der Welle (i) entgegengerichtet ist. z. Bremse nach Anspruch i, gekennzeichnet durch eine aus Bandstahl gewickelte Feder.PATENT CLAIMS. i. Equal pressure friction brake for shafts; marked by a helical spring encompassing the shaft (i) to be braked with torsional tension (2), one end of which is held stationary and the end of which is directed towards its free end Winding direction is opposite to the rotation of the shaft (i). z. Brake according to claim i, characterized by a spring wound from steel strip.
DEM6731D 1943-05-18 1943-05-18 Equal pressure friction brake for shafts Expired DE896742C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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