SU992877A1 - Distrtruction apparatus - Google Patents

Description

(54) DISTRIBUTIVE CONSTITUTION

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The invention relates to hydraulic devices for controlling hydraulic actuators and can be used in a wide variety of hydraulic actuators.

Known switchgear, in the channel of the casing of which are installed valves that interact through the balls

with a drive mechanism 11.

J The device has the disadvantage of complex construction and low reliability.

The purpose of the invention is to simplify the design and increase the efficiency of operation.

This goal is achieved by the fact that the drive mechanism is made in the form of a segment lever with a through hole and holes, the diameter of the through hole and the thickness of the segment lever being equal to the diameter of the balls.

FIG. 1 shows the device, a general view; in fig. 2 - cross section; in fig. 3 - part of the segmental lever; in fig. 4 hydraulic switchgear connection circuit.

The distribution device includes a housing 1 with lids 2, drain channels 3, each of which has valves 6 and 7 in fittings 4 and 5, equipped with springs 8 and 9 and pushrods 10 and II, control sections 12 and 13. Unions 14, valves 15 fitted with springs 16 and pushers 17 are connected to housing I. In the housing there are

10 axes, segmental levers 18 are installed and balls 19 are placed. Segmental levers on the lateral surfaces have holes 20, the depth of which depends on the stroke of the planes.

five

Claims (1)

As shown in the hydraulic circuit (Fig. 4), the valve block control mechanism 21 is connected to two dual valves 22 and 23 via pipes 24 and 25 connected respectively to valves 26 and 27. The valves of intermediate sections 28 and 29 are connected by pipes 30 and 31 with controllable valves 32 and 33 of the hydraulic cylinders 34 and 35. 399 The switchgear operates in the following way. . In the neutral position, the segment levers 18 are fixed with balls under the action of spring 16 by means of pushers 17 and clamps 15, which are closed. The valves 6 and 7 are opened by balls 19 located between the pushers 10 and 11, and communicate the control cavities of the dual valves 22 and 23 (Fig. 4) with drain channels 3 (Fig. 1). When, for example, the segment lever 18 is turned on to the right in by: Lifting (FIG; 2 is shown by a dotted line) one of the balls 19 (Fig. 1) moves the segment lever to the left. Under the action of the spring 9, the valve 7 or the valve 27 (Fig. 4) is closed due to the well 20 (Fig. 2), and the valve 6 (Fig. 1) or the valve 26 (Fig. 4) remains open. At the same time, the valve 15 (Fig. 1) opens with a segment lever by means of a ball and a pusher 17 (Fig. 1). An open valve 15 (Fig. 1) or a valve 28 (Fig. 4) provides the control cavity of the hydraulically controlled valve 32 (Fig. 4) with a tank drain. At this moment, the working fluid from the pump through the open dual valve 22 (Fig. 4) and the open hydraulically controlled valve 32 enters the rod cavity of the hydraulic cylinder 34. The working body of the machine rises. When turning on .segmental lever 18 (Fig. 1) from the neutral to the left in the intermediate position in the lowering position (Fig. 2). One of the balls i 19 (Fig. 1) is moved by the segment lever to the right. Under the action of the spring 8, the valve 6 or the valve 26 (Fig. 4) is closed due to the well (Fig. 2, shown by dotted lines). A valve 15 (Fig. 1) opens with a single-segment lever by means of a ball and a pusher 17. An open valve 15 or valve 28 (Fig. 4) informs the control cavity of the hydraulically controlled valve 32 with a tank drain. At this moment, the working fluid from the pump through the open dual valve 23 enters the Piston cavity of the hydraulic cylinder 34. The machine’s working body is lowered. segment lever to the right. Valves 6 and 7 (Fig. 1) or valves 26 and 27 (Fig. 4) are open, since in this position the segment lever 18-1 (Fig. 1) on the side surfaces either have no holes or are filled from two sides to smaller depth for fixing the lever in a floating position. At the same time, the valve 15 (Fig. 1) opens with a segment lever by means of a ball and a pusher 17 (Fig. 1). Open valves 6 and 7 OR valves 26 and 27; 15 or the valve 28 communicates the control cavities of the dual valves 22 and 23 (Fig. 4), as well as the control valve 32 with the tank drain, due to which the hydraulic cylinders 34 come together with each other and with the tank drain. Thus, the distribution device, together with the twin valves 22 and 23 (Fig. 4) and the hydraulically controlled valves 32 and 33 (Fig. 4), provides control of the hydraulic actuator, including one or several hydraulic cylinders. In this case, all necessary positions are provided for when operating the hydraulic actuator. Claims of the invention: A distribution device, in the channel of the casing of which valves are installed, interacting by means of balls with a drive mechanism, characterized in that, in order to simplify the design and increase the efficiency of operation, the drive mechanism is designed as a segment lever with a through hole and holes, the holes and the thickness of the segmental lever are equal to the diameter of the ball. Sources of information taken into account in the examination 1. US patent N 2935292, cl. 251-28.5, I960.