DE132338C

DE132338C -

Info

Publication number: DE132338C
Application number: DENDAT132338D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Gegenstand der vorliegenden Erfindung ist ein Fliehkraftregler für Compressoren und Pumpmaschinen, dessen Zweck ist, dafs die Geschwindigkeit des Compressors durch den wechselnden Druck des verdichteten Gases oder der Luft, oder bei Pumpmaschinen durch die wechselnde Säule oder Drückhöhe der zu pumpenden Flüssigkeit mit Sicherheit geregelt wird.The present invention is a centrifugal governor for compressors and Pumping machines, the purpose of which is to increase the speed of the compressor through the changing pressure of the compressed gas or air, or in pumping machines by the changing column or pressure level of the liquid to be pumped controlled with safety will.

Fig. ι ist ein Längsschnitt einer Ausführungsform des Reglers nach der Erfindung und Fig. Ι is a longitudinal section of an embodiment of the controller according to the invention and

Fig. 2 eine Einzeldarstellung eines der Schwungkugeiarme.2 shows an individual representation of one of the swing ball arms.

In der dargestellten Ausführungsform ist der Regler derart gebaut, dafs er mittels eines Schwinghebels mit einem unter Federwirkung stehenden Kolben verbunden ist, der von einem Compressor oder einer Pumpe beeinflufst wird, wobei das freie Ende des Schwinghebels mit dem nicht dargestellten Getriebe der Maschine oder des Motors gekuppelt ist. Der Regler nach der Erfindung kann indessen auch in anderer Weise ausgeführt oder verwendet werden.In the embodiment shown, the controller is constructed in such a way that it can be controlled by means of a Rocker arm is connected to a piston under spring action, which is of a Compressor or a pump is influenced, the free end of the rocker arm with is coupled to the transmission, not shown, of the machine or the motor. The regulator according to the invention, however, can also be implemented or used in other ways will.

Der Hebel 11, welcher unter der Einwirkung des Reglers steht und irgend eine geeignete Maschine oder einen Motor beeinflufst, ist an einem Tragarm 13 an dem Regler angelenkt und bei 14 mit einer Muffe oder Hülse 15 auf einem Federgehäuse 16 verbunden, welches eine Spindel 17 umschliefst, die in einem Gehäuse 18 des Reglers angeordnet ist.The lever 11, which is under the action of the controller and any suitable Influenced machine or a motor is articulated on a support arm 13 on the controller and connected at 14 to a sleeve or sleeve 15 on a spring housing 16, which a spindle 17 which is arranged in a housing 18 of the controller.

Die Spindel wird durch ein Getriebe 19 oder dergl. von der Maschine oder dem Motor: angetrieben. In dem Gehäuse 16 ist eine Feder 20 untergebracht, welche die Spindel 17 umgiebt, die an diesem Punkte eine Schulter 21 hat, aufweicher eine Muffe 22 aufsitzt. Aufsen an dieser Muffe ist eine Feder 23 angeordnet, die auf einer Schulter oder einem Flantsch 24 der Muffe aufliegt, wobei dieser Flantsch oder die Schulter sich auf- und abbewegt und in dem Gehäuse 16 Führung erhält. Die Feder wird ferner durch einen Kopf 25 in Stellung gehalten, der an der Welle 17 befestigt ist und welcher Tragearme 26 aufnimmt, an denen die belasteten Arme 27 beweglich angebracht sind, welche die Schwungkugeln des Reglers bilden. Die Arme sind winkelhebelartig geformt und mit Stangen 28 in Verbindung gebracht, die wiederum an Ansätzen oder Lappen 29 des Gehäuses 16 gelenkig befestigt sind. Die Anordnung dieser Stange oder des Gelenkgliedes zwischen dem Kugelarm und dem Federgehäuse ist zweckmäfsig, da hierdurch erreicht wird, dafs die wirksame Hebellänge der Reglerkugeln nach Mafsgabe ihrer Bewegung nach aufsen gesteigert wird. Die Wirkung dieses Gliedes auf die Hebellänge der Kugel kann beurtheilt werden, wenn die Entfernungen, welche mit c in Fig. 1 und mit d in Fig. 2 bezeichnet sind, verglichen werden, welche Figuren die Kugel in der äufsersten Innen- bezw. äufsersten nach aufsen gerichteten Stellung darstellen. Dieselbe Wirkung kann durch Anordnung einer Rolle an dem Reglerkugelarm erreicht werden, welche auf einer schrägen oder gekrümmten Ebene an dem Federgehäuse läuft, die in diesem Falle der gleichwerthige Ersatz des Gelenkgliedes ist.The spindle is driven by a gear 19 or the like from the machine or the motor. In the housing 16 there is accommodated a spring 20 which surrounds the spindle 17, which at this point has a shoulder 21 on which a sleeve 22 rests. A spring 23 is arranged on the outside of this sleeve and rests on a shoulder or flange 24 of the sleeve, this flange or shoulder moving up and down and being guided in the housing 16. The spring is also held in position by a head 25 which is attached to the shaft 17 and which receives support arms 26 to which are movably attached the loaded arms 27 which form the flyballs of the regulator. The arms are shaped like an angle lever and are connected to rods 28, which in turn are articulated to attachments or tabs 29 of the housing 16. The arrangement of this rod or the joint member between the ball arm and the spring housing is expedient, since it is achieved thereby that the effective lever length of the control balls is increased according to their outward movement. The effect of this member on the lever length of the ball can be assessed if the distances, which are marked with c in FIG. 1 and with d in FIG. represent the outermost position facing outwards. The same effect can be achieved by arranging a roller on the regulator ball arm which runs on an inclined or curved plane on the spring housing, which in this case is the equivalent replacement for the joint member.

Die Fliehkraft der umlaufenden Kugeln bewerkstelligt ein Heben des Gehäuses 16 undThe centrifugal force of the rotating balls brings about a lifting of the housing 16 and

Claims

the sleeve 22 against a load caused by compression of one or both Springs 20 and 23 is caused; the spring 20 is against the lower side of the flange 24 and the spring 23 pressed against the head 25. The flange 24 is is pressed downward on the shoulder 21 of the spindle 17 by the spring 23. The spring housing 16 is made with an inner shoulder 42 so that when the Regulator, this shoulder comes into contact with the lower surface of the flange and prevents that the spring 20 is further compressed, so that after it has entered is, the remaining part of the regulator stroke against the action of the upper spring 23 before is going. This latter spring is adjusted in such a way that the initial force exerted by this is exerted, equal to or a little greater than the force which is the lower Spring exerts when the shoulder 42 comes into contact with the flange 24.

The free length of the lower spring will be less than the distance from the two Surfaces between which it is compressed when the controller is in its lowest position, so that only after the regulator has risen by the amount of this distance, the lower spring moves begins to compress and the centrifugal force of the regulator balls simply kills the weight of the spring housing and the spring, as well as the weight of the counterweight and the balanced weight of the lever 11 has to be overcome. This killed Weight can be adjusted in such a way that even at a very low speed of the Regulator the centrifugal force of the balls is sufficient to balance it and the upper part of the lower Keep the spring pressed straight against the flange ring 24. This speed which is required to complete this task is said to be the lowest working speed of the controller.

The advantage gained by the arrangement of the two separate springs, as described, is best illustrated by an example. Let it be B. assumed that a Air compressor has a maximum speed of 75 revolutions per minute. Of the The speed controller is then set in such a way that at this speed the inner shoulder 42 on the spring housing 16 just touches the flange ring 24 so that for any speed that is less than 75 revolutions, the balls only against the lower spring act. If one now assumes that the air supply is damaged the Compressor would want to go through; in the meantime in which the If the speed had increased to around 82 revolutions, the controller would go up to highest position against the resistance of the upper spring 23 so that the Shut off the supply of steam and maintain a safe speed would. In the case of the regulator, which is only equipped with a spring, the speed would the machine must increase to about 100 revolutions before the regulator be lifted to its highest position and shut off the steam supply. It might be supposed that this would be a result of the use of a long pen could be achieved which is practically as effective as the union of two Springs after the discussion above: this requirement is not, however true, since there are two points of view for a good regulation of materiality, 1. the The spring must have its free length when the regulator is in its lowest position or close to it 2. a large spring load is required when the controller is in its highest position in order to achieve a large margin of spring loading in the working hood of the regulator.

Patent claim:
Centrifugal governor with several springs of different strengths connected one behind the other, characterized in that one spring (20) is arranged in a housing (16), which is shorter than the housing and surrounds a spindle (17) on whose shoulder (21) a sleeve (24) bearing the other spring (23) rests, the sleeve (24) being able to slide in the housing (16) and the spring (23) being held down by a head (25) in whose support arms (26) the Flyball arms are rotatably mounted so that the flyweights act on the housing (16) at the increasing rotational speed due to the centrifugal force, first lift it and then compress the spring (20) against the flange (24) until an inner shoulder (42) of the Housing (16) hits the flange (24) and the upper spring (23) begins to tension.

1 sheet of drawings.