SU20658A1 - Steam distribution spool mechanism - Google Patents

Description

In the proposed steam distribution spool mechanism with the movement of the spool by the action of a prop on the piston rod of the machine, an additional prop located between the two main props and loaded with a spring is used to obtain small cylinder fillings.

In FIG. Figures 1 and 2 schematically depict longitudinal sections of the mechanism in its two positions; -Fig. 3-circuit device for changing the effects of the movement of the machine.

On the spool rod S of the mechanism, equipped with two spools B (Fig. 1), two props to and u are fixed, between which there is an additional propeller, loaded with a spring in. The piston rod of the machine, located under the spool rod, is equipped with a prop m, which rests on the props at appropriate times, and KI y to displace the spools. Above the spool rod g, the guide plate E is fixed, equipped with a recess c and a lever 3 pivotally suspended on the axis, which can be secured against counterclockwise rotation with the aid of the support D, held in turn by the lever f with the arm f, the piston machine ( Fig. 1), approach to the left (according to the drawing) dead position by the support m, moves the support to, together with the spool rod g from right to left (according to the drawing), at which steam enters from the steam line L from the left side of the piston and begins to move the latter from left to right ( P about the drawing). When the piston at this movement approaches the right-hand dead position, it moves the prop m from left to right (according to the drawing) prop 1, at which steam from the steam line L comes from the right side of the machine piston and the latter moves again from right to left (according to the drawing). When the prop L1 moves in the interval between the props to and уп 1, it encounters the prop u in its path and, exerting pressure on it, pushes the spool rod g until the spring in forces the propeller into the recess from the guide plate WM, at what the prop m goes further freely before it comes in contact with the prop k or K). With the indicated movements of the rod, the spools B will close the steam access to the machine piston, and the latter will work with limited filling.

If necessary, change the direction of movement of the machine prop D e pen: corner :: A;

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Fits all the way into the lever 3, which was in the operation of the machine described in the free line (fig. 3), and fixes it against counterclockwise rotation (fig. 1 and 2). When the thrust bearing moves the machine piston from left to right, y will be displaced, while simultaneously the thrust w will move the plate ch to the lever,, the movement of which will continue until the lever arm е does not abut the thrust bearing n and the lever 3 is released. By this time, the spools B, B will occupy the position shown in FIG. 2, the bar then begins to flow from the right side of the piston in the drawing and the machine will move in the opposite direction.

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The subject of the patent.

1. Steam distribution spool mechanism with spool movement

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the action of the prop on the piston rod of the machine, characterized by the use, in order to obtain small cylinder fillings, the prop y located on the spool rod in the middle between the prop K, Kj, which finally move the spool to its extreme positions, which spring / a guide plate uu, provided with a recess em-c, into which the rod "/ is moved in with the whole passage of the prop.".

2. Modification of the mechanism described in Section 1 as applied to reversing machines, characterized by the use of a lever hinged pivotally on the axis o (Fig. 1, 3), fixed by the support D, held in turn by the lever e and released by the latter an anvil and, moreover, the plate gS is made movable in the longitudinal direction.

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