RU177211U1 - WAVEGUIDE FLANGE JOINT - Google Patents

Abstract

The utility model relates to the field of electrical engineering, namely to waveguide technology and can be used in the design of waveguides with rectangular angular bends. The technical result, which is achieved by the claimed utility model, is to increase the mechanical strength of the waveguide flange and increase the mechanical strength of the connection between the waveguide with a rectangular angular bend and the flange. The result is achieved in that the waveguide flange connection contains two waveguides with flanges. Each of the flanges has a central window configured to fix the waveguide in it. One of the waveguides is made with a rectangular angular bend, one part of which is placed and fixed in the central window of the flange interacting with it. At the same time, two protrusions are made on the outer surface of the flange with the possibility of placing and rigidly fixing between them another, perpendicular to the first, part of the waveguide. Moreover, a rigid fixation is made to the outer surface of the flange, as well as to the inner side surfaces of the protrusions facing the waveguide. 1 s.p. f-ly, 5 ill.

Description

The utility model relates to the field of electrical engineering, namely to waveguide technology, and can be used in the design of waveguides with angular rotations.

Known waveguide flange device (AM Chernushenko, N.E. Melanchenko, L.G. Maloratsky, B.V. Petrov "Design of microwave devices and screens" Textbook for universities, M .: Radio and communications, 1983, p. 103, Fig. 6.27), containing a waveguide with a radial bend in the plane of the electric field (bend in the E plane) with waveguide flanges, on the end surfaces of which there are annular grooves for gaskets.

The disadvantage of this device is the insufficient mechanical strength of the connection of the waveguide with the flange.

Known waveguide flange connection (patent for utility model RU No. 89767, published: December 10, 2009, IPC Н01Р 1/04), containing two connected waveguides with waveguide flanges, a sealing metal gasket, while the end surface of one of the waveguide flanges is flat, and on the end surface of the other waveguide flange, an annular groove is made, inside of which there is a sealing gasket in the form of a rod of ductile metal, the cross-sectional area of the bar not exceeding the cross-sectional area of the annular groove.

The disadvantages of this device include insufficient mechanical strength of the end connection of the waveguide with the flange.

The closest in technical essence and the achieved result to the proposed technical solution is a waveguide flange connection (patent for utility model RU No. 166421, published: 05/30/2016, IPC Н01Р 1/04), containing two connected waveguides with flanges, each of the flanges has a central window made with the possibility of fixing the waveguide in it. One of the waveguides is made with a rectangular angular bend, and one part is placed and fixed in the central window of the flange interacting with it, and the other, perpendicular to it, part of the waveguide is placed and fixed in a groove made in the outer end surface of this flange and paired with one of its side faces. The central window of the flange interacting with the waveguide is made extending into the groove.

The disadvantages of this device include the insufficient mechanical strength of the waveguide flange due to the presence of a groove in it, as well as the insufficient strength of the connection of the waveguide with the flange.

The technical problem solved by the creation of a utility model is the insufficient mechanical strength of both the waveguide flange (due to the presence of a groove in it) and the connection between the waveguide with a rectangular angular bend and the flange.

The technical result, which is achieved by the claimed utility model, is to increase the mechanical strength of the waveguide flange and increase the mechanical strength of the connection between the waveguide with a rectangular angular bend and the flange.

The technical result is achieved in that the waveguide flange connection contains two waveguides with flanges. Each of the flanges has a central window configured to fix the waveguide in it. One of the waveguides is made with a rectangular angular bend, one part of which is placed and fixed in the central window of the flange interacting with it. Moreover, it differs from the prototype in that on the outer surface of the flange there are two protrusions with the possibility of placing and rigidly fixing between them another, perpendicular to the first, part of the waveguide. Moreover, a rigid fixation is made to the outer surface of the flange and to the inner side surfaces of the protrusions facing the waveguide.

The essence of the inventive waveguide flange connection is illustrated by drawings of FIG. 1-5, where:

FIG. 1 is a general view of a waveguide flange connection;

FIG. 2 is a view A of FIG. one;

FIG. 3 - waveguide with a rectangular angular bend (in section);

FIG. 4 is a general view of a waveguide with a rectangular angular bend;

FIG. 5 is a general view of a flange with protrusions.

The waveguide flange connection (Fig. 1-5) contains two connectable waveguides 1, 2 with flanges 3, 4, a contact strip 5 located between the contact surfaces of the flanges 3, 4, fasteners 6 in the form of bolts with nuts, for tightening and fixing the flanges 3, 4 through holes 7.

The waveguide 1 (Fig. 1-4) is made with a rectangular angular bend (along a wide or narrow wall) and consists of two mutually perpendicular parts 8, 9 (Fig. 3, 4). In addition, the waveguide 1 is made with a slice 10 (Fig. 4), which is closed by a scarf 11 (Fig. 1-3).

Each of the flanges 3, 4 has a central rectangular window 12 (Fig. 5), in which a corresponding waveguide is fixed.

In the corners on the outer surface 13 of the flange 3, made rectangular, protrusions 14 are located so that part of the sides 16 (Fig. 5) of the protrusions 14 is a continuation of the side faces 17 (Fig. 5) of the flange 3. The distance between the protrusions is proportional to the width of the Central window and the width of the waveguide.

One part 9 of the waveguide 1 with a stepped protrusion 18 (Fig. 4) is placed and rigidly fixed in the rectangular central window 12 (Fig. 5) of the flange 3, and the other part 8 (Fig. 4) of the waveguide 1, perpendicular to the first part 9, is placed on the outer the surface 13 (Fig. 5) of the flange 3 between the protrusions 14 (Fig. 5) and is rigidly fixed on both sides along the length of the waveguide 1 to the outer surface 13 of the flange 3, as well as along the contour of the inner side surfaces 15 (Fig. 5) of the protrusions 14, facing the waveguide 1.

Rigid fixation of the waveguide to the flange is carried out by soldering or welding.

Rigid fixation of the waveguide 1 in the rectangular central window 12 of the flange 3, on its outer surface 13 and to the protrusions 14 increases the fixed surface of the waveguide, which, in turn, increases the mechanical strength of the connection of the flange 3 with the waveguide 1.

Assembly of the waveguide flange connection is as follows.

One part 9 of the waveguide 1 with a stepped protrusion 18 is installed in a rectangular central window 12 of the flange 3 and is rigidly fixed (for example, by soldering or welding). The other part 8 of the waveguide 1, perpendicular to the first part 9, is placed on the outer surface 13 of the flange 3 between the protrusions 14 and rigidly fixed (for example, by soldering or welding) on both sides along the length of the waveguide 1 to the outer surface 13 of the flange 3, as well as along the inner contour side surfaces 15 of the protrusions 14 facing the waveguide 1.

The waveguide 2 is installed and rigidly fixed (soldering or welding) in the window 12 of the flange 4.

The joined flanges 3, 4 of the waveguides 1, 2, with a pre-placed contact strip 5 between the contact surfaces of the flanges 3, 4, are fixed and tightened with fasteners 6 in the form of bolts and nuts through the holes 7.

The proposed design of the waveguide flange connection allows you to increase the mechanical strength of the waveguide flange by performing it with the protrusions, as well as to increase the mechanical strength of the connection between the waveguide with a rectangular angular bend and the flange by increasing the fixed surface of the waveguide located between the protrusions of the flange. In this case, a rectangular angular bend can be performed both on a wide wall (bending in the plane of the electric field - E-bending) and on a narrow wall (bending in the plane of the magnetic field - H-bending).

Claims (2)

1. A waveguide flange connection containing two waveguides with flanges having central windows configured to fix waveguides in them, while one of the waveguides is made with a rectangular angular bend, one part of which is placed and fixed in the central window of the flange interacting with it, characterized the fact that on the outer surface of the flange there are two protrusions with the possibility of placement and rigid fixation between them of another, perpendicular to the first, part of the waveguide, and rigid fixation is made to the outer surface of the flange, as well as to the inner side surfaces of the protrusions facing the waveguide. 2. The waveguide flange connection according to claim 1, characterized in that part of the sides of the protrusions is an extension of the side faces of the flange.

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