DE179865C

DE179865C -

Info

Publication number: DE179865C
Application number: DENDAT179865D
Authority: DE

Description

^—-—111—--^ —-— 111 —--

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

->£ 179865 KLASSE 14 d. GRUPPE-> £ 179865 CLASS 14 d. GROUP

Steuerung für schwungradlose Pumpen. Patentiert im Deutschen Reiche vom 3. April 1906 ab.Control for flywheelless pumps. Patented in the German Empire on April 3, 1906.

Die vorliegende Erfindung betrifft eine Steuerung für schwungradlose Dampfpumpen und ähnliche, durch Dampf angetriebene Vorrichtungen, bei der der Schieber durch federnde Anschläge von der Kolbenstange aus bewegt wird und an den Hubenden aus einer Endstellung in die andere geschnellt wird.The present invention relates to a controller for flywheelless steam pumps and Similar devices driven by steam, in which the slide is actuated by resilient Stops is moved from the piston rod and at the stroke ends from an end position into the other.

Die Erfindung ist insbesondere an Kolbenschiebern verwendbar, kann jedoch auch anThe invention can be used in particular on piston valves, but can also be used on

ίο Flachschiebern oder Corlißhähnen oder schwingenden Schiebern angewendet werden.ίο Flat slide valves or Corli taps or swinging Sliders can be applied.

Die Erfindung besteht darin, daß in seitliche Kerben des Schiebers eingreifende federbelastete Druckkörper den Schieber in den End-Stellungen festhalten.The invention consists in that engaging spring-loaded in lateral notches of the slide Pressure hull hold the slide in the end positions.

In der Zeichnung ist die Erfindung beispielsweise an zwei verschiedenen Schiebern angewendet, zur Darstellung gebracht.
Bei der in Fig. 1 und 2 gezeigten Ausführungsform ist der Kolbenschieber E in einer zylindrischen Kammer C der Dampfkammer A geführt. Das Ventilgehäuse A ist mit dem Zylinder B aus einem Stück gegossen. Die eingesetzte zylindrische Büchse G ist mit Dampf- bezw.In the drawing, the invention is applied, for example, to two different slides, shown.
When in Fig. 1 and 2 shown embodiment, the piston valve E is guided in a cylindrical chamber C of the steam chamber A. The valve housing A is cast in one piece with the cylinder B. The used cylindrical sleeve G is with steam respectively.

Auspuffkanälen D¹, D², D³, D* und D⁵ ausgestattet. Auf der von der Kolbenstange der Pumpe aus bewegten und durch den Schieber E hindurchgeführten Schieberstange F befindet sich auf jeder Seite des Schiebers eine Schraubenfeder H und H¹ über den Hülsen / und T¹, welche durch einen Bund /² bezw. eine Mutter /³ gehalten werden. Der Schieber E ist mit Auskehlungen oder Auskerbungen K und K¹, je zwei auf jeder Seite rechtwinklig zur Bewegungsrichtung ausgerüstet. Die Form dieser Aus45 Exhaust ducts D ¹ , D ² , D ³ , D * and D ⁵ . On the moved by the piston rod of the pump and passed through the slide E slide rod F is located on each side of the slide a coil spring H and H ¹ over the sleeves / and T ¹ , which respectively by a collar / ^2. a mother / ^{3 are} kept. The slide E is equipped with grooves or notches K and K ¹ , two on each side at right angles to the direction of movement. The shape of this Aus 45

kerbungen entspricht der der Kugel M, welche in den weiter unten näher besprochenen Kugelkammern η untergebracht .sind. Es sei hier bemerkt, .daß die letztgenannten Auskerbungen irgend eine andere geeignete Gestalt erhalten können. Der Abstand der Mittellinien dieser Schlitze, in der Bewegungsrichtung des Schiebers gemessen, ist gleich dem Schieberhub.notches corresponds to that of the ball M, which are accommodated in the ball chambers η discussed in more detail below. It should be noted here that the last-mentioned notches can be given any other suitable shape. The distance between the center lines of these slots, measured in the direction of movement of the slide, is equal to the slide stroke.

Zwischen den Auskerbungen ist an dem Schieber auf jeder Seite eine in der Längsrichtung abgeflachte Stelle, deren Ebene zwischen der tiefsten Stelle der Auskerbungen und der Außenfläche des Schiebers liegt.Between the notches there is one in the longitudinal direction on the slide on each side flattened point, the level between the deepest point of the notches and the outer surface of the slide.

Rechtwinklig zu der Bewegungsbahn des Ventiles sind zwei einander gegenüberstehende Kammern N vorgesehen (Fig. 2), die je eine oder mehrere Kugeln M aus gehärtetem Stahl oder anderem geeigneten Material aufnehmen. Letztere werden gegen den Schieber durch Schraubenfedern P oder anders gestaltete Federn gedrückt, die an dem Deckel oder an der Endwandung der Kammern N ihre Stütze finden. Bei der gezeigten Ausführungsform werden diese Wandungen durch Schraubenstöpsel gebildet, welche einen hervorragenden Stift R besitzen, der die Rückwärtsbewegung der Kugeln M begrenzt, und zwar in der Weise, daß die innersten Kugeln nicht ganz soweit zurückgedrückt werden können, daß sie mit der Innenwandung der Ventilkammer C a8-schneiden könnte. Dadurch wird erreicht, daß das Ventil sich nur so weit bewegen kann, als dem Abstande zwischen den beiden Auskerbungen entspricht, wobei die Kugeln die Bewegung begrenzen. Two opposing chambers N are provided at right angles to the movement path of the valve (FIG. 2), each of which accommodates one or more balls M made of hardened steel or other suitable material. The latter are pressed against the slide by helical springs P or otherwise designed springs, which find their support on the cover or on the end wall of the chambers N. In the embodiment shown, these walls are formed by screw plugs which have a protruding pin R which limits the backward movement of the balls M , in such a way that the innermost balls cannot be pushed back as far as they can with the inner wall of the valve chamber C a8-cut could. This ensures that the valve can only move as far as corresponds to the distance between the two notches, the balls limiting the movement.

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Claims

The mode of operation of the valve is as follows: Assume that the balls M engage in the notches K (Fig. 2) and hold that. Valve in such a position that steam can pass through channels D, D1 and D2 to cylinder B, while from the other end of cylinder B the used steam is exhausted through channels D3, D * and D6. Here, the pump begins its downward stroke and the gear connected to the pump rod acts on the slide rod F in such a way that the spring H1 is compressed. The compression of this spring H1 takes place during the greater part of the stroke of the pump and the slide rod .F; however, the ball stop springs P have sufficient tension to prevent the slide E from moving, with the springs of the balls M being held in the notches K. Near the end of the stroke, the spring H1 is fully compressed and the protruding part of the sleeve or cap J1 forces the slide E to move so that the resistance offered by the springs P is overcome and the. Balls M are pushed out of the notches K. As soon as this pushing out is done so far that the balls hit the flattened points L, the resistance is overcome, and since the main spring H1 is tensioned, it drives the slide E forward until the balls M can fall into the other notches K1 . The steam channels are arranged so that in this position of the slide E the steam exhausts from the upper end of the cylinder and fresh steam is admitted into the lower end, so that now the pump moves in the opposite direction, whereupon the reverse process occurs. In the embodiment shown in FIG. 3, a special spring S is also arranged at each end of the slide, which is held between a collar or ring attachment S1 on the bulge G and one on the cover T. These springs S serve to weaken the impact exerted by the balls M at the end of the slide stroke. To limit and determine the valve lift, hardened steel balls or balls made of other suitable material are preferred, since when such balls are used, the friction on the surface of the slide R and on the surface of the guide chambers N is reduced. In the embodiment shown in FIG. 4, cylindrical or prismatic pressure bodies U are arranged in the guide chambers N; whose ends U1 are designed so that they fit more or less exactly to the notches K and K1. Similar to the balls M, the bodies U are also influenced by springs P. In the embodiments shown in FIGS. 1 to 4, the slide is designed as a relieved piston slide. Fig. 5 shows the vertical and Fig. 6 shows the horizontal section of the control with relieved flat slide. The slide E works under a compensating plate W and is equipped with channels D1, D2 and D3. The device of the ball guides N, the balls M, the springs P, the notches K and K1 and the longitudinal flattened areas or the transition sections L is essentially the same and only changes insofar as the different design of the slide requires it. Sponsorship τ claims:

1. Control for flywheelless pumps, in which the slide is snapped from the piston rod by resilient stops from one end position to the other, characterized in that spring-loaded balls (M) or other pressure bodies (U, U ¹ J in lateral notches ( K, K ¹ ) of the slide (E) engage and hold it in its end positions.

2. Control according to claim 1, characterized in that between the notches (K and .K ¹ J a connecting track (L) is arranged, the plane of which is located at a suitable distance between the bottom of the notches and the outer surface of the slide (E) .

3. Control according to claim 1 and 2, characterized in that in the guide channels fiV ^ derDruckkörperfMbezw. U, U ^x ) stop pins (R and U) are provided which limit the stroke of the pressure body.

1 sheet of drawings.