RU181023U1 - DEVICE FOR VIBRATION TESTING OF RADIO ELECTRONIC UNIT OF AIRCRAFT - Google Patents

Abstract

A device for vibration testing of an electronic unit of an aircraft relates to devices for testing various electronic devices on vibration stands. The claimed device for vibration testing of an electronic unit of an aircraft in the form of a hollow metal box mounted on a base plate is provided with a removable cover and a mounting plate, while two pins are installed on the inner surface of the base plate and four through holes are made for mounting elements for mounting the test electronic block , the box is prefabricated in the form of a 4-sided cube, the side faces of which are interconnected and with the base plate using fasteners entents, on the outer side of one of the side faces of the box there are four cylindrical guides for fixing the collection box on the mounting plate. The technical result consists in simplifying the design, reducing labor costs for the manufacture of the device and the installation of the test electronic unit. 1 ill.

Description

A device for vibration testing of an electronic unit of an aircraft relates to devices for testing various electronic devices on vibration stands.

A device for mechanical testing in the form of a frame with a lower stationary flange [1].

Closest to the proposed device is a device for vibration testing of electronic devices in the form of a hollow prism mounted on a base plate [2].

The disadvantages of the known devices are the complexity of their manufacture and installation of the test electronic unit.

After manufacturing the electronic unit, it is necessary to conduct tests for resistance to vibrations on a vibration stand. For testing, a technological device is needed that secures the radio-electronic unit in the same way as it is mounted on an aircraft, as well as the installation of the technological device itself on a vibration stand.

The technical problem solved in the proposed utility model is to simplify the design, reduce labor costs for the manufacture of the device and the installation of the test electronic unit.

The specified technical result is achieved by the fact that the known device for vibration testing of an electronic unit of an aircraft in the form of a hollow metal box mounted on a base plate is additionally equipped with a removable cover and a mounting plate, while two pins are installed on the inner surface of the base plate, and four through holes for fasteners for installation of the test electronic block, the box is prefabricated in the form of a 4-sided cube, the side faces of which connected to each other and to the base plate using fasteners, on the outside of one of the side faces of the box are four cylindrical guides for fixing the collection box on the mounting plate.

The drawing shows a device for vibration testing with the tested electronic unit and with the removed front face of the box.

The device for vibration testing of the electronic unit has a hollow metal box 1 in the form of a 4-sided cube, a removable lid 2 mounted on the upper end of the box using fasteners, for example, bolts 3, and a base plate 4 mounted on the lower end of the box with using fasteners. The side faces of the box 1 are interconnected using four pairs of fasteners. Two pins 5 are located on the inner surface of the base plate 4 and four through holes are made for fasteners for mounting the test electronic block (the electronic block is shown in dotted form in the drawing). In the removable cover 2, a through guide hole 6 is made under the mating cylindrical part of the test electronic block. On the outside of one of the side faces of the box 1, four cylindrical guides 7 are installed for fixing the collection box on the mounting plate 8.

To facilitate the design in the removable cover 2, in the side faces of the box 1 and in the base plate 4, holes are made and all external sharp corners are rounded.

Each part of the box 1 - a removable cover 2, four side faces and a base plate 4 - made in the form of a single part by forming it from a metal material, for example, aluminum.

Installation in the device of the tested electronic unit is as follows.

The test electronic block is installed inside the box 1 on the base plate 4 so that the two mounting holes of the electronic block are supported respectively on the two pins 5 of the base plate 4. Then, a removable cover 2 is installed and its position is fixed on the box 1 with fasteners 3, while the upper cylindrical part the electronic unit is centered in the guide hole of the removable cover 2 through an annular rubber seal 9 mounted in the annular groove of the electronic unit (electronic unit and rubber seal 9 is shown in dotted lines in the drawing). The prefabricated box 1 with the tested electronic block is installed with a side face on which the cylindrical guides 7 are located on the mounting plate 8, and then the electronic block is fixed with fasteners on the base plate 4 and the box 1 on the mounting plate 8. Then, the mounting plate 8 is attached to the vibration table of the stand ( the vibration table of the stand is not shown in the drawing).

Testing the electronic unit for vibration is carried out in one direction.

Thus, the proposed device for vibration testing of the electronic unit allows you to simplify the design and reduce the complexity of manufacturing the device and the installation of the test electronic unit.

Sources of fame

1. Patent No. 1840349, 10/10/2006, G01M 7/00;

2. Patent No. 153800, 08/10/2015, G01M 7/02.

Claims (1)

A device for vibration testing of an aircraft’s electronic unit in the form of a hollow metal box mounted on a base plate, characterized in that it is provided with a removable cover and a mounting plate, with two pins installed on the inner surface of the base plate and four through holes for mounting elements for installing the test electronic block, the box is made prefabricated in the form of a 4-sided cube, the side faces of which are connected to each other and to the base plate using fasteners, on the outer side of one of the side faces of the duct four cylindrical guides are installed to fix the assembly duct on the mounting plate.

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