DD252416A5

DD252416A5 - FRIKTIONSIMPULSGETRIEBE

Info

Publication number: DD252416A5
Application number: DD29590286A
Authority: DD
Inventors: Ivan A Bakalov; Sofka G Popova
Original assignee: Npsk Po Kontrolno Savaratschni Raboti,Bg
Priority date: 1985-12-12
Filing date: 1986-11-04
Publication date: 1987-12-16
Also published as: SU1516688A1; CS264285B2; DK524486A; BG44810A1; HUT45305A; HU197076B; DK524486D0; JPS62204051A; CS905686A2

Abstract

Die Erfindung betrifft ein Impulsgetriebe, bestehend aus einer Fuehrungswelle, welche als Kurbelwelle mit zwei Kurbelarmen, die in einem Abstand von 180 voneinander liegen, ausgebildet ist, und einer Ausgangswelle, welche von zwei flexiblen Elementen erfasst ist, die mit ihrem einen Ende an den Kurbelarmen der Fuehrungswelle, und mit dem anderen Ende an der Spannvorrichtung angebracht sind, wobei in der Zone zwischen den Endpunkten der Passungen der flexiblen Elemente an der Ausgangswelle und der Stelle der Befestigung der flexiblen Elemente an der Fuehrungswelle eine Vorrichtung zur Spannung der flexiblen Elemente angebracht ist. Die Spannvorrichtung ist ein steifes Element, welches an seinen beiden Enden scharnierartig an den entsprechenden Enden der flexiblen Elemente angebracht ist, indem in der Mitte des steifen Elements scharnierartig eine Spannfeder durch einen Halter angebracht ist. Die Vorrichtung zur Spannung der flexiblen Elemente ist ein steifes Element, welches mit seinen beiden Enden an den flexiblen Elementen scharnierartig angebracht ist und in seiner Mitte an eine steife Regulierspannvorrichtung scharnierartig montiert ist.The invention relates to a pulse transmission, consisting of a Fuehrungswelle, which is designed as a crankshaft with two crank arms, which are at a distance of 180 from each other, and an output shaft, which is detected by two flexible elements, with its one end to the crank arms the guide shaft, and with the other end attached to the tensioning device, wherein in the zone between the end points of the fits of the flexible elements on the output shaft and the point of attachment of the flexible elements to the Fuehrungswelle a device for tensioning the flexible elements is mounted. The tensioner is a rigid member which is hinged at both ends thereof to the respective ends of the flexible members by hingedly mounting a tension spring through a holder in the center of the rigid member. The flexible element tensioning device is a rigid element hinged at both ends to the flexible elements and hinged at its center to a rigid regulating jig.

Description

Das Friktionsimpulsgetriebe besteht aus einer Führungswelle 1, welche als Kurbelwelle mit zwei Kurbelarmen 2 und 3, welche in einem Abstand von 180° voneinander liegen, ausgebildet ist,aus einer Ausgangswelle 4, welche von zwei flexiblen Elementen 5 und 6 erfaßt ist, welche an ihrem einen Ende an einer Spannvorrichtung befestigt sind, welche ein steifes Element 7 ist, das mit seinen beiden Enden an den entsprechenden Enden der flexiblen Elemente 5 und 6 scharnierartig angebracht ist. In der Mitte des steifen Elements 7 ist scharnierartig eine Spannfeder 8 durch einen Halter 9 angebracht. In der Zone zwischen den Endpunkten der Passungen 10 der flexiblen Elemente 5 und 6 ah der Ausgangswelle 4 und der Stelle der Befestigung der flexiblen Elemente '5 und 6 an der Führungswelle 1 ist eine Vorrichtung zur Spannung der flexiblen Elemente angebracht, welches ein steifes Element 11 ist, das mit seinen beiden Enden an den flexiblen Elementen 5 und 6 scharnierartig angebracht ist. Das steife Element 11 ist in seiner Mitte an eine regulierende steife Spannvorrichtung 12 scharnierartig montiert.The friction pulse transmission consists of a guide shaft 1, which is formed as a crankshaft with two crank arms 2 and 3, which are at a distance of 180 ° from each other, from an output shaft 4, which is detected by two flexible elements 5 and 6, which at their one end attached to a tensioning device which is a rigid element 7 hinged at both ends to the respective ends of the flexible elements 5 and 6; In the middle of the rigid element 7, a tension spring 8 is hingedly attached by a holder 9. In the zone between the end points of the fits 10 of the flexible elements 5 and 6 ah of the output shaft 4 and the point of attachment of the flexible elements' 5 and 6 to the guide shaft 1, a device for tensioning the flexible elements is attached, which is a rigid element 11 is, which is hingedly attached with its two ends to the flexible elements 5 and 6. The rigid element 11 is hinged at its center to a regulating rigid tensioning device 12.

Das Friktionsimpulsgetriebe funktioniert folgendermaßen: Bei der Drehung der Führungswelle 1 führen die Enden der flexiblen Elemente 5 und 6, welche daran exzentrisch angebracht sind, Kreisbewegungen aus, wobei sie bei ihrer Entfernung von der Führungswelle 1 ständig eine hin- und hergehende Bewegung mit entgegengesetzten Richtungen auszuführen beginnen. Das flexible Element 5 verursacht bei seiner Bewegung im Drehsinn der Ausgangswelle 4 eine Druckkraft, wodurch es auf diese Weise auch die Ausgangswelle 4 mitzudrehen beginnt. Inzwischen bewegt sich das flexible Element 6 frei in entgegengesetzter Richtung wegen der Freigabe der Ausgangswelle 4 von der Druckkraft. Auf diese Weise sichert man die Drehung der Ausgangswelle 4 in einer Richtung.The friction pulse transmission operates as follows: Upon rotation of the guide shaft 1, the ends of the flexible members 5 and 6 mounted eccentrically thereon make circular motions, constantly performing a reciprocating motion in opposite directions as they are removed from the guide shaft 1 begin. The flexible element 5 causes a compressive force during its movement in the direction of rotation of the output shaft 4, whereby it also starts to turn the output shaft 4 in this way. Meanwhile, the flexible member 6 moves freely in the opposite direction because of the release of the output shaft 4 from the pressing force. In this way, it ensures the rotation of the output shaft 4 in one direction.

Dasselbe wird erzielt, wenn die beiden flexiblen Elemente ihre Bewegungsrichtungen ändern.The same is achieved when the two flexible elements change their directions of movement.

Bei der Spannung der Reguliervorrichtung 12 entsteht in der Zone zwischen der Führungswelle 1 und den Stellen der Passungen 10 der flexiblen Elemente 5 und 6 an der Ausgangswelle 4 eine Lockerung der flexiblen Elemente 5 und 6. Damit die Führungswelle 1 jedes der flexiblen Elementein den Drehsinn der Ausgangswelle 4 versetzen kann, muß sie die Lockerung der flexiblen Elemente 5 und 6 beseitigen. Wenn ihre Lockerung größer als der Lauf der Führungswelle 1 ist, hört die Ausgangswelle 4 auf, sich zu drehen.With the tension of the regulating device 12, in the zone between the guide shaft 1 and the locations of the fits 10 of the flexible members 5 and 6 on the output shaft 4, a loosening of the flexible members 5 and 6 occurs. Thus, the guide shaft 1 of each of the flexible members in the direction of rotation of Output shaft 4 can put it, they must eliminate the relaxation of the flexible elements 5 and 6. When its relaxation is greater than the travel of the guide shaft 1, the output shaft 4 stops rotating.

Claims

Friction momentum transmission, consisting of a guide shaft, which is designed as a crankshaft with two crank arms, which are at a distance of 180 ° from each other, and an output shaft, which is detected by two flexible elements, which at one end to the crank arms of the guide shaft , and at its other end to a tensioning device, characterized in that in the zone between the end points of the fits of the flexible elements on the output shaft and the point of attachment of the flexible elements to the guide shaft, a device for tensioning the flexible elements is arranged, characterized in that the tensioning device is a rigid element (7) which is hinged at its two ends to the respective ends of the flexible elements (5; 6), a tensioning spring (8) being inserted in the middle of the rigid element (7) Holder (9) is hinged, and the device for tensioning the flexible elements te is a rigid element (11), which at its two ends to the flexible elements (5; 6) is hinged, and hinged at its center to a stiff regulating jig (12).

For this 1 page drawing

Field of application of the invention

The invention relates to a Friktionsimpulsgetriebe, which is used in mechanical engineering, in the electrical industry and in power in the pulse drive of mechanisms application.

Characteristic of the known state of the art

Known is a Friktionsimpulsgetriebe consisting of a guide shaft, which is designed as a crankshaft with two crank arms, which are at a distance of 180 ° from each other, and from an output shaft, which is detected by two flexible elements, which with one end to the crank arms of the guide shaft, and with the other end to a jig, which consists of two springs are mounted. In the zone between the end points of the fitting of the flexible elements to the output shaft and the point of attachment of the flexible elements to the input shaft, a device for tensioning the flexible elements consisting of two springs and a force varying mechanism is mounted.

Object of the invention

The aim of the invention is to extend the operating time and to avoid the ever-changing transmission ratio.

Explanation of the essence of the invention

The object is achieved with a pulse transmission, consisting of a guide shaft, which is designed as a crankshaft with two crank arms, which are at a distance of 180 ° from each other, and an output shaft, which is detected by two flexible elements, with its one end attached to the crank arms of the guide shaft, and with the other end to the tensioning device, wherein in the zone between the end points of the fits of the flexible elements on the output shaft and the point of attachment of the flexible elements to the guide shaft, a device for tensioning the flexible elements is appropriate. According to the invention, the tensioning device is a rigid element, which is hingedly attached at its two ends to the respective ends of the flexible elements by a tension spring in the middle of the rigid element is hingedly mounted by a holder. The flexible element tensioning device is a rigid element which is hinged at both ends to the flexible elements and is hinged at its center to a regulating rigid tensioning device. An advantage of the friction pulse transmission is the significantly reduced operating life, increased reliability and maintaining a constant transfer ratio in a simplified design.

embodiment

An embodiment of the invention is shown in the attached figure, which shows a friction pulse transmission.