DE265747C

DE265747C -

Info

Publication number: DE265747C
Application number: DENDAT265747D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- Jig 265747 KLASSE 60. GRUPPE- Jig 265747 CLASS 60th GROUP

. CARL ILGNER in WIEN.. CARL ILGNER in VIENNA.

Patentiert im Deutschen Reiche vom 16. September 1911 ab.Patented in the German Empire on September 16, 1911.

Die vorliegende Erfindung betrifft einen Achsen- oder Flachregler, bei welchem die Fliehkräfte der Schwungmassen durch kreisförmig gebogene Federn, beispielsweise durch .Flachfedern von rechteckigem Querschnitt, aufgenommen werden. Die bisher gebräuchlichen Regler dieser Art besitzen in der Regel gegenüber der Benutzung von Schraubenfedern den Nachteil, daß die Flachfeder, indem sie beimThe present invention relates to an axis or flat rate controller in which the Centrifugal forces of the centrifugal masses through circularly curved springs, for example through .Flat springs of rectangular cross-section, are included. The ones that have been used so far Regulators of this type usually have the opposite to the use of coil springs Disadvantage that the flat spring by when

ίο Ausschlag der Schwunggewichte nicht mehr eine Kreisform beibehält, an ihren verschiedenen Stellen ungleich deformiert wird, so daß die Elastizität der Feder gering und die Bruchgefahr groß ausfällt. Dies macht sich besonders bei Veränderung der mittleren Tourenzahl des Reglers nachteilig bemerkbar.ίο No longer swing weights maintains a circular shape, is deformed unequally at its various points, so that the The elasticity of the spring is low and the risk of breakage is high. This makes it special disadvantageously noticeable when changing the mean number of revolutions of the controller.

Es ist nun zwar bereits vorgeschlagen worden, die Kreisform der mit ihrem einen Ende im festen System eingespannten Feder während des Ausschlages dadurch beizubehalten, daß man für das bewegliche Federende zunächst diejenige Bahn bestimmt, die der genannten Bedingung (Beibehaltung der Kreisform) entspricht, und alsdann das bewegliche Federende durch einen im Krümmungsmittelpunkt dieser Bahn gelagerten Lenker derart führt, daß das genannte Federende sich annähernd längs dieser Kurve bewegen muß.It has already been proposed to use the circular shape with one end to maintain the spring clamped in the fixed system during the deflection in that one first determines the path for the movable spring end that is the one mentioned Condition (retention of the circular shape) corresponds, and then the movable spring end by a handlebar mounted in the center of curvature of this path in such a way that the said spring end must move approximately along this curve.

Bei Biegungsfedern aber, deren bewegliches Ende unmittelbar am Schwunggewicht eingespannt ist, kommt durch die Einspannung noch eine andere Bedingung hinzu, die im folgenden erläutert werden soll:In the case of bending springs, however, the movable end of the springs is clamped directly to the flywheel is, the restraint adds another condition, which follows should be explained:

Ist die kreisförmig gebogene Feder a (Fig. 4) in b eingespannt und nimmt sie bei ihrer innersten Stellung die Lage a_x ein, so befindet sich das bewegliche Ende der Feder im Punkte C₁, und der um. den Mittelpunkt O₁ geschlagene Radius der Feder sei T₁. Soll nun die Feder bei ihrem Ausschlag stets kreisförmig bleiben, so muß der Mittelpunkt O₁ allmählich die Lagen O₂, O₃, O₄ einnehmen, d. h. er muß auf einer durch den Einspannungspunkt b gezogenen geraden Linie wandern. Trägt man die gleichen Kreislängen auf den zugehörigen Kreisen ab, so ergibt sich, daß das bewegliche Federende C₁ nacheinander in die LagenIf the circularly curved spring a (Fig. 4) is clamped in b and if it assumes the position a _x in its innermost position, the movable end of the spring is at point C ₁ , and the one around. the center point O ₁ , the stroke radius of the spring, is T ₁ . If the spring is always to remain circular when it deflects, the center O _{1 must} gradually assume the positions O ₂ , O ₃ , O ₄ , ie it must move on a straight line drawn through the clamping point b. If the same circle lengths are plotted on the corresponding circles, the result is that the movable spring end C ₁ moves into the layers one after the other

gelangt.got.

Das bewegliche Federende beschreibt, also, wenn die Feder stets kreisförmig bleiben soll, eine bestimmte Kurve (eine höhere zyklische Kurve). Findet im normalen Betriebe der Ausschlag etwa zwischen den Lagen C₂ bis C₄ statt, so kann man das entsprechende Kurvenstück C₂, C₄ durch einen Kreisbogen ersetzen, dessen Mittelpunkt im Punkte C liegt. Wählt man also den Aufhängungspunkt des Schwunggewichtes, wie es oben als bekannt angegeben ist, in der Nähe des Punktes C, so ist die Bedingung, daß das Federende sich auf der bestimmten Kurve bewegt, erfüllt.The movable end of the spring describes a certain curve (a higher cyclical curve) if the spring is to remain circular at all times. If the deflection _{takes place between positions C 2} to C ₄ in normal operation, the corresponding curve segment C ₂ , C _{4 can be} replaced by an arc of a circle, the center of which is at point C. If one chooses the suspension point of the swing weight, as indicated above as known, in the vicinity of point C, the condition that the end of the spring moves on the specific curve is fulfilled.

Andererseits ist für den Fall, daß das bewegliche Federende unmittelbar am Schwunggewicht eingespannt ist, gemäß, vorliegender Erfindung noch folgendes zu beachten:On the other hand, in the event that the movable spring end is directly on the flyweight is clamped, according to the present invention, the following should also be observed:

Schließt der Krümmungsradius C, c_s mit dem zugehörigen Federradius o₃, C₃ den Win-If the radius of curvature C, c _s with the associated spring _{radius o 3} , C ₃ closes the

Claims

angle α and if the same angle α is applied to the spring radius for the other two positions O ₂ , C ₂ and O ₄ , C ₄ , these lines intersect approximately at point D, which is also in the direction of the center of curvature C lies. The suspension point for the swing weight is therefore to be selected approximately at point D according to the invention, so that both are explained

ίο theoretical conditions are met.

In the schematic drawing Fig. Ι is

the suspension point e of the swing weight is chosen in this way, so that when it is deflected, the circularly curved spring a always retains a circular shape even after its deformation. The arrangement can be made in such a way that the inertia of the flywheel also acts in a favorable manner during the deflection.

The construction of such an axis controller is illustrated in FIG. The controller housing can be attached to the flywheel f of the machine (for example a locomobile) or it can be formed by the latter. The lever-like swing weights d are rotatably suspended in the bolts e. The two circularly curved flat springs α are firmly clamped on the flywheel with the help of the clamping pieces b. The movable ends c of these two springs are finally clamped firmly to the ends of the associated flywheels d. With the help of the toggle rods g, the swinging weights turn the eccentric i, which is rotatable about the flywheel axis h.

Since the effort of the spring is the same at all points due to the retention of a circular shape, the new controller is also particularly suitable for changing the average number of revolutions during operation by adjusting the spring accordingly. For this purpose, you only need to make the fixed spring end b correspondingly displaceable, according to the same principles that are explained above for the movable spring end, so that the circular shape is always retained. This is shown schematically in FIG. The fixed spring end b is clamped in this case at the end of an arm k whose suspension point in the fixed system is again selected in such a way that it corresponds to the maintenance of a circular shape of the path described by the spring end b and the other conditions explained above. In the special case shown, for example, this pivot point can also coincide with the suspension point e of the swing weight. In this way, when the mean number of revolutions changes, the fixed spring end b moves on a path which, similar to that explained above, is situated so that the spring always retains a circular shape when it is deformed. In Fig. 2, the spring has the middle position a _v with normal number of revolutions. If the fixed spring end b _x is now adjusted to δ ₂ by corresponding rotation of the arm k to increase the mean number of revolutions, the spring moves into position a ₂ and takes a again Circular shape. If the swing weight d now makes a deflection, so that the movable end of the spring moves from position C ₁ to position C ₃ , the spring comes to position a ₃ and remains circular again.

Such an axis controller with a device for tours adjustment is shown in FIGS. 5 and 6 in one embodiment. The adjustment arms k, on which the fixed spring ends are clamped. are, in the present case, are not suspended exactly in the pivot pin e , but are movably connected to the latter by means of the short joint pieces I. The adjustment of these arms k during operation takes place from the handwheels m and η with the help of the bevel gear 0, ft, which sets the screw shaft q in left or right rotation and thereby moves the female threaded sleeves r outwards or inwards. The latter ■ act with the help of the double lever s on the adjustment arms k in one direction or the other to adjust. Depending on whether you want to increase or decrease the average number of revolutions of the axis controller, you only need to hold either the handwheel m or the handwheel η during operation, whereby the adjustment arms k are moved either outwards or inwards and thereby the fixed spring ends to one or the other move in the other direction. .

As can be seen without further ado, the short joint pieces I make a small deflection during the tour adjustment and in this way enable the adjustment movement of the arms k without the need for any slot guide or the like.

Pat ε nt-An Proverbs:

i. Axis or flat regulator with a circularly curved spring that retains the circular shape when the flyweights are deflected, one end of which is clamped in a known manner on the fixed system (flywheel or the like) and with its other end on the flywheel, characterized in that, that the suspension point of the flywheel - instead of in the center of curvature (C in Fig. 4) of the trajectory (c ₂ , c _s , cj of the movable spring end - is chosen at such a point (DJ of the radius of curvature) that the lever (d in Fig. Ι to 3) with the drawn in the movable spring end radius of the circular

shaped spring approximately the same angle for all deflections (α in Fig. 4) includes.

2. An embodiment of the controller according to claim 1, characterized in that - for the purpose of changing the average number of revolutions during operation - the fixed spring end (b) is clamped at the end of an adjustment arm (k) , the suspension point of which - to maintain a circular shape of the spring during the adjustment - is chosen in a similar way to the suspension point of the swing weight.

3. An embodiment of the controller according to claims 1 and 2, characterized in that the adjustment arm (k) are rotatably suspended directly or by means of short joint pieces (I) in the suspension points (e) of the flywheels and can be rotated by a suitable adjusting device (m, n , o, p, q, r, s) can be adjusted in one direction or the other during operation.

For this purpose 2 sheets of drawings.