DE819345C - Infinitely variable V-belt change gear with automatic speed adjustment by means of a control ring by changing the center distance - Google Patents

Infinitely variable V-belt change gear with automatic speed adjustment by means of a control ring by changing the center distance

Info

Publication number
DE819345C
DE819345C DEE975A DEE0000975A DE819345C DE 819345 C DE819345 C DE 819345C DE E975 A DEE975 A DE E975A DE E0000975 A DEE0000975 A DE E0000975A DE 819345 C DE819345 C DE 819345C
Authority
DE
Germany
Prior art keywords
control ring
belt
changing
center distance
change gear
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
DEE975A
Other languages
German (de)
Inventor
Andreas Jaudt
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.)
Manfred Erhardt & Co
Original Assignee
Manfred Erhardt & Co
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 Manfred Erhardt & Co filed Critical Manfred Erhardt & Co
Priority to DEE975A priority Critical patent/DE819345C/en
Application granted granted Critical
Publication of DE819345C publication Critical patent/DE819345C/en
Expired legal-status Critical Current

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
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/14—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using only one pulley built-up out of adjustable conical parts
    • 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
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/16—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
    • F16H2009/166—Arrangements of two or more belt gearings mounted in series, e.g. for increasing ratio coverage

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Description

Es sind stufenlos regulierbare Keilriemetiwechselgetriebe bekannt, bei denen die Einleitung der Verstellung des Übersetzungsverhältnisses durch axiale Verschiebung der die Riemenrillen bildenden Kegelscheiben mittels entsprechender Antriebe, Gestänge bzw. Hebelübersetzungen teils auf mechanischem, hydraulischem oder elektrischem Wege erfolgt. Dabei sind die Verstellmechanismen meist kompliziert.Infinitely variable V-belt transmission are known, where the initiation of the adjustment of the transmission ratio by axial Displacement of the conical pulleys forming the belt grooves by means of corresponding Drives, linkages or lever ratios partly on mechanical, hydraulic or by electrical means. The adjustment mechanisms are usually complicated.

Der Antrieb nach der Erfindung umgeht die Nachteile der bekannten Ausführungen und vereinfacht die Steuerorgane wesentlich.The drive according to the invention avoids the disadvantages of the known Executions and simplifies the control organs significantly.

Ein Antrieb gemäß der Erfindung ist in den Abb. i und 2 in einem Ausführungsbeispiel gezeigt, und zwar den gleichen Antrieb in zwei verschiedenen Übersetzungsstellungen.A drive according to the invention is shown in Figs. I and 2 in one embodiment shown, namely the same drive in two different translation positions.

Auf einer in ihrer Achslage verschiebbaren Triebwerkswellea sitzt fest aufgekeilt die Zwischenbuchse b, die auf ihrem Außendurchmesser als Nutwelle ausgebildet ist. Auf ihr verschiebbar ist die Kegelscheibenhälfte mit dem Flankenwinkel links c angeordnet. Am Ende des Wellenstumpfes der Kegelscheibe c ist die Steuerkegelscheibe d mit dem Flankenwinkel rechts befestigt. Dazwischen sitzt ebenfalls verschiebbar die Doppelscheibe e, die mit einer Flanke die Laufrille des Keilriemens und mit der anderen Flanke die Laufrille des Steuerrings f bildet und die sich gegenüber den Scheiben c und d nicht verdrehen kann. Der zwischen die Scheiben c und e gespannte Keilriemen erweitert die Keilriemenrille so lange, bis der Steuerring f rädial gleichmäßig zwischen den Steuerringflanken d und e anliegt und konzentrisch mit ihnen umläuft. Damit ist der kleinste Riemenscheibendurchmesser der Wechselscheibe gegeben. Der Steuerring f soll seine Achslage beim nachfolgenden Verstellvorgang nicht mehr verändern können. Die automatische Verstellung der Kegelscheiben erfolgt durch Verschiebung der Achse von der Stellung x-y in Richtung x'-y' dadurch, daß der Steuerring f zwar mit rotiert, jedoch mit seiner Drehachse in der Stellung x-y verharrt. Dadurch werden die Steuerscheibenflanken d und e auseinandergedrückt und die Riemenscheibenflanken c und e proportional hierzu geschlossen. Die Flankenwinkel der Riemenscheiben und Steuerscheiben stehen in Beziehung zueinander und sind so gewählt, daß beim Verstellvorgang konstante Riemenspannung gewährleistet ist. Der Steuerring selbst ist in einem triebwerksgestellseitigen Maschinenteil drehbar gelagert, das von Hand im Falle von Riemendrehungen oder Steuerringabnutzungen in Richtung x'-y" nachgestellt werden kann.The intermediate bushing b, which is designed as a grooved shaft on its outer diameter, is firmly wedged on an engine shaftea that is displaceable in its axial position. The conical pulley half with the flank angle c on the left is arranged to be displaceable on it. At the end of the stub shaft of the conical disk c, the conical control disk d is attached with the flank angle on the right. In between, there is also slidably seated the double pulley e, which forms the running groove of the V-belt with one flank and the running groove of the control ring f with the other flank and which cannot rotate in relation to the pulleys c and d. The V-belt stretched between the pulleys c and e expands the V-belt groove until the control ring is evenly in contact with the control ring flanks d and e and revolves concentrically with them. This gives the smallest pulley diameter of the interchangeable pulley. The control ring f should no longer be able to change its axis position during the subsequent adjustment process. The automatic adjustment of the conical disks takes place by shifting the axis from the position xy in the direction x'-y 'in that the control ring f rotates with it, but remains with its axis of rotation in the position xy. As a result, the control disk flanks d and e are pressed apart and the pulley flanks c and e are closed proportionally. The flank angles of the belt pulleys and control disks are related to one another and are selected so that constant belt tension is guaranteed during the adjustment process. The control ring itself is rotatably mounted in a machine part on the engine frame side, which can be readjusted by hand in the event of belt rotations or control ring wear in the direction x'-y ".

Der Antrieb nach der Erfindung läßt sich auf beliebig viele Riemenscheibenrillen nebeneinander in bekannter Weise erweitern, wobei nur ein Steuerscheibenflankenpaar mit einem Steuerring erforderlich ist. Durch die Fixierung des Steuerrings in einer Ebene senkrecht zur Drehachse erfolgt die Verschiebung der Kegelscheibe so, daß eine Verwanderung der Riemenebenen nicht eintritt. Bei genügend großem Achsabstand kann jedoch auf diese Fixierung verzichtet werden. Dann entfällt die Zwischenbuchse b, und die Scheiben c und d sind unmittelbar auf die Triebwerkswelle a aufgesetzt und verkeilt. Lediglich die Scheibe e führt bei der Verstellung Axialbewegungen aus. Der Steuerring muß dann mit seinem Kugellagergehäuse so aufgehangen werden, daß er sich zwar in Achsrichtung nicht aber senkrecht hierzu bewegen kann.The drive according to the invention can be applied to any number of pulley grooves expand side by side in a known manner, with only one pair of control disk flanks with a control ring is required. By fixing the control ring in a In the plane perpendicular to the axis of rotation, the conical disk is shifted in such a way that a shift in the belt levels does not occur. With a sufficiently large center distance however, this fixation can be dispensed with. The intermediate bush is then not required b, and the disks c and d are placed directly on the engine shaft a and wedged. Only the disk e performs axial movements during the adjustment the end. The control ring must then be hung with its ball bearing housing in such a way that that although it cannot move in the axial direction but perpendicular to it.

Claims (1)

PATEN TANSPßl'Cli: Keilriemenwechselgetriebe, dadurch gekennzeichnet, daß die seitliche Verstellung der die Riemenlaufrille bildenden Kegelscheibenpaare (c, e) durch einen mitlaufenden Steuerring (f) erfolgt, dessen Drehachse nicht verschoben wird, während die Triebwerkswelle (a) aus ihrer Lage (x-y) in Richtung (x'-y') bewegt wird und der die Flankendrücke beim Verstellvorgang überträgt, so daß bei konstanter Riemenspannung keine erhöhte Flankenbelastung der Gummigewebekeilriemen auftritt. PATEN TANSPßl'Cli: V-belt change-speed gearbox, characterized in that the lateral adjustment of the conical pulley pairs (c, e) forming the belt groove is carried out by an accompanying control ring (f) whose axis of rotation is not shifted while the engine shaft (a) moves out of its position (xy ) is moved in direction (x'-y ') and which transmits the flank pressures during the adjustment process, so that with constant belt tension there is no increased flank load on the rubber fabric V-belt.
DEE975A 1950-04-12 1950-04-12 Infinitely variable V-belt change gear with automatic speed adjustment by means of a control ring by changing the center distance Expired DE819345C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE975A DE819345C (en) 1950-04-12 1950-04-12 Infinitely variable V-belt change gear with automatic speed adjustment by means of a control ring by changing the center distance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE975A DE819345C (en) 1950-04-12 1950-04-12 Infinitely variable V-belt change gear with automatic speed adjustment by means of a control ring by changing the center distance

Publications (1)

Publication Number Publication Date
DE819345C true DE819345C (en) 1951-10-31

Family

ID=7065030

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE975A Expired DE819345C (en) 1950-04-12 1950-04-12 Infinitely variable V-belt change gear with automatic speed adjustment by means of a control ring by changing the center distance

Country Status (1)

Country Link
DE (1) DE819345C (en)

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