RU2595234C1 - Controlled airship gas valve device - Google Patents

Abstract

FIELD: aviation.

SUBSTANCE: invention relates to aeronautics. Controlled airship gas valve device has a body with a hole and a gas channel for air passage, a valve seat with a tight mounting flange, structure elements for combined linear and rotary reciprocating movement of the valve. Device is equipped with a dog coaxially fixed on the central opening of the body and being able to move around the central axis of the valve. Through the shaped dog opening there passes a shank of the valve disc pin, which is conjugated with the profile of the dog opening, has the ability to transmit the torque from the dog to the valve disc and provided with a possibility of free axial movement in the profiled opening upon the dog movement.

EFFECT: invention is aimed at ensuring operational reliability.

1 cl, 4 dwg

Description

The invention relates to aviation, in particular to aeronautics, namely, to the device of controlled gas valves of the airship.

Airship controlled gas valves are used to release air or carrier gas from the shell in a controlled manner. The speed of maneuvering of an airship often depends on the rate of gas outflow through the valve; therefore, most built airships are equipped, in addition to automatic ones, also with controlled gas valves, which usually open inside the shell.

A controlled gas valve must satisfy a group of important requirements:

- equal strength structural elements;

- low total weight and minimum weight of the moving parts of the kinematics;

- simplicity of design with a minimum number of parts;

- reliability and unstressed action of kinematics;

- relatively low cost of manufacturing;

- long-term tightness under operating conditions;

- the exclusion of the possibility of a skew between the landing belt of the plate and valve seat;

- the impossibility of spontaneous opening of the valve from inertial forces during spatial evolutions of the airship;

- low aerodynamic drag;

- accessibility for inspection and adjustment;

- simplicity of installation and dismantle.

A device for a controlled gas valve of an airship is known (S. A. Losik, I. A. Kozlov. “Airship equipment”, Moscow. GIOP NKAP USSR. 1939, p. 27, Fig. 22, p. 28. Fig. 23a. Controlled airship valve LZ-126), in which to open the valve it is necessary to exert force through the two shoulder levers in the direction of axial movement of the valve disc.

The disadvantage of this controlled gas valve device is the shock landing of the valve disc on the saddle at the moment of passage closure, as well as the need to place the valve next to the crew member so that it can reach the control lever by hand.

A device for the forced (manual) opening valve is known (Yu.S. Boyko. "Aeronautics in inventions", Moscow, Transport, 1999, Fig. 74, Page 87. German patent No. 307110), in which to open the valve you need to attach force remotely through a rope fixed to the central axis of the valve disc from the outside.

The disadvantage of this device is a controlled gas valve, is also the shock landing of the valve disc on the seat at the moment of closing the passage. In addition, the angular deviation of the rope when controlling the valve is limited by the possibility of rubbing it on the surface of the coil of the spring, mounted on the outlet and the increase in effort from friction.

The device of the automatic gas valve of the airship according to German patent No. 307110 (Yu.S. Boyko. "Ballooning in inventions". M., Transport, 1999, Fig. 74, Page 87) was selected as a prototype.

The objective of the invention is to provide a device for controlled gas valve of an airship by introducing into the design of an automatic gas valve a rationally arranged control convenient for opening / closing a valve disc directly or remotely.

The objective of the invention is solved in that in order to control the opening and closing of the valve, it is equipped with a leash coaxially mounted on the central hole of the housing and provided with mobility around the central axis of the valve, and a shank of the valve disc pin that is interfaced with the profile of the leash hole is passed into the profiled hole of the leash has the ability to transmit torque from the leash to the valve plate and has freedom of axial movement in the profiled hole when the leash is rotated.

The technical result is characterized by the following essential features.

In order to control the opening and closing of the valve, it is equipped with a leash pivotally attached to the end of the central hole of the housing and provided with mobility around the central axis of the valve, and the shank of the valve disc pin, which is connected to the profile of the hole of the leash, has the ability to transmit to the valve disc is torque from the leash and has freedom of axial movement in the profiled hole when the leash is rotated.

In FIG. 1 shows a general view of a device of a controlled gas valve of an airship assembly. In FIG. Figures 2-4 show the positions of the leash and plates of the controlled gas valve of the airship in the "Closed" state, in the "Partially open" state and in the "Fully open" state.

The automatic gas valve device of the airship of FIG. 1-4 includes a housing (1) on which a "spider" (2) is mounted with a guide (3). The valve disc (4) has a central pin (5). The pin (5) is inserted into the guide (3) and has the freedom of longitudinal and circumferential reciprocating movement within the stroke of the valve disc. The elastic elements (6) can be made, for example, lamellar or wire. They have end mounts (7) and (9). The node (7) has two mutually perpendicular hinges (8) and (9). The assembly (10) has only one vertical hinge, the axis of which is parallel to the central axis of the valve. Two hinge unit (7) of the elastic element is fixed on the surface of the valve disc. One hinge unit (10) of the elastic element is mounted on the edge of the "spider". At least three elastic elements are distributed around the diameter of the valve disc. In the “Closed” valve position, the elastic elements are deflected in the circumferential direction from the vertical by an initial angle of at least 5 °, which is set by adjustable stops.

Unlike the prototype, the valve disc has a central pin (5) with a profiled shank (11), which is passed through the hole of the lead (12), having a matching profile and the possibility of transmitting torque through it. The cross-sectional profile of the shank (11) and the mating hole of the lead (12) can be made, for example, in the form of a square, triangle, splined contour. The lead (12) is pivotally fixed in the end hole of the spider (2) of the housing (1) and has freedom of angular movement in a plane perpendicular to the central axis of the valve disc (4) and its pin (5).

The automatic gas valve of the airship operates as follows.

At the moment of applying a control force to the lead (12), it begins to rotate around the central axis of the valve, turning through the profiled shank (11) the valve pin (5) together with the plate. The valve disc (4) in the process of circumferential deformation of the elastic elements (6), departs from the seat of the housing (1) (Fig. 1, Fig. 2). The pin (5) and its shank (11) move along the guide (3) and the profiled hole of the lead (12) upwards, providing an axisymmetric working stroke. The elastic elements (6), deforming in the circumferential direction, give the valve disc (4) a rotational movement (Fig. 3). The addition of the translational and rotational movement of the valve disc during rotation of the leash (12) accompanies the entire process of opening the valve until the leash (12) and valve disc (4) reach the “Fully open” position (Fig. 4).

After removing the control force from the leash (12), the force from the differential pressure acting on the area of the valve disc (4) towards its closure, and the return force of the elastic elements (6) bring the valve disc into reverse motion. Due to the return of the elastic elements (6) in the circumferential direction along the deformation path, the valve disc (4) in the reverse stroke performs combined translational and rotational motion, providing a shock-free fit of the valve on the seat in the housing (1). When the valve closes, the leash (12) returns to the “Closed” position.

The proposed device controlled gas valve of the airship allowed:

1. To provide a controlled cycle of opening / closing the valve due to a simple sector-wide rotation of the leash at a given angle in the horizontal plane.

2. Increase the operational reliability of valve control.

3. Use in the construction of a controlled gas valve most of the details of the prototype.

Claims (1)

A device for a controlled gas valve of an airship having a body with a hole and a flow part for air passage, a valve seat with an airtight landing belt, structural elements that make it possible to combine rectilinear and rotational reciprocating movements of the valve plate, characterized in that in order to provide control of the opening and closing the valve, it is equipped with a leash coaxially mounted on the Central hole of the housing and provided mobility around the Central axis of the valve, and in rofilirovannoe hole leash omitted pin shank of the valve disc, which is conjugate with the profile of a lead hole, it has the ability to transmit to the valve plate by the torque leash and has a profiled opening freedom of axial movement when turning the leash.

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