RU2795331C1 - Equipment for cleaning airfield signal lights - Google Patents

Abstract

FIELD: airfield cleaning equipment.

SUBSTANCE: equipment for cleaning signal lights contains a frame (1) on which a brush mechanism (2), a limiter (3), a hitch (4) and a drive (5) are installed. The brush mechanism (2) has the form of a cross, fixed on a rotating shaft, on the blades of which, parallel to the axis of rotation, brush pile is placed. The cross is replaceable so that it can be replaced along with brush pile as it wears out. The brush pile fibres on the replaceable cross are made of different lengths - shorter in the centre and longer at the edges, with formation of a hollow geometric figure and with the possibility of changing their position from vertical to inclined and horizontal by changing the rotation frequency of the replaceable cross and their stiffness by replacing them. The limiter (3) is equipped with a protective screen and a curved chute.

EFFECT: increased efficiency of cleaning the airfield signal lights without formation of snowbanks in the nearby area around the light in the winter season, as well as the ability to remove vegetation in the warm season in the zone of light signal lights.

1 cl, 3 dwg

Description

The invention relates to aerodrome equipment, in particular, to attachments for cleaning aerodrome side landing lights of the runway, including artificial (runway, IVGTP) and taxiway lights (RD) and main taxiways (MTD), at aerodromes, access roads and roads in order to ensure the high-quality operation of airfield lighting equipment.

Known: equipment for cleaning signal lights SAL 3500, containing a frame with support wheels, hitch, drive, blades, brushes (see http/catalog/aeromachines-prototype, accessed 09/03/2022).

The disadvantages of the above equipment is the complexity of the design, due to the presence of a significant number of brushes and dumps, in addition, the low cleaning efficiency due to the fact that during the operation of this equipment snow banks are formed on both sides of the range of light signal lights on the edge of the runway, MRD, taxiway , which leads to the organization of additional work on its removal and increased labor costs. This equipment is provided only for snow removal and does not imply cleaning the working area of signal lights from vegetation in the spring and summer.

The technical objective of the proposed invention is to increase the efficiency of cleaning and the creation of equipment for cleaning the signal lights of an airfield of a simple design, which allows cleaning the lights all year round, both in the autumn and winter from snow and ice formations, and in spring and summer from dust and mud pollution and vegetation in the working area of the lighting equipment.

The problem is solved by the fact that in the proposed equipment for cleaning signal lights, containing a frame, a hitch, a drive connected to a brush mechanism, a limiter, according to the invention, a brush mechanism is installed on the frame, fixed with a hitch, with the possibility of vertical movement and radial rotation around own axis, which is a rotating shaft equipped with a replaceable cross, on which, parallel to the axis of rotation of the shaft, a brush pile is placed, and the fibers of the brush pile on the replaceable cross are made of different lengths - shorter in the center and longer at the edges, with the formation of a hollow geometric figure and the possibility changing their position from vertical to inclined and horizontal by changing the frequency of rotation of the interchangeable cross and their rigidity by replacing them, while a limiter equipped with a protective screen and a curved chute is installed on the frame.

The essence of the invention lies in the fact that a brush mechanism is installed on the frame, fixed with a hitch, with the possibility of vertical movement and radial rotation around its own axis, which is a rotating shaft equipped with a replaceable cross, on which, parallel to the axis of rotation of the shaft, a brush pile is placed, moreover, the brush pile fibers on the replaceable cross are made of different lengths - shorter in the center and longer at the edges, with the formation of a hollow geometric figure and the possibility of changing their position from vertical to inclined and horizontal by changing the rotational speed of the replaceable cross and their stiffness by replacing them, while on the frame, a limiter is installed, equipped with a protective screen and a curved chute.

It is known (see http/catalog/aeromachines-prototype, accessed 09/03/2022) that when cleaning the lights with equipment, snow banks form, which must be further removed with additional technical means. In the proposed invention, when cleaning signal lights, when the brush mechanism rotates at different speeds, the pile along the edges, due to centrifugal forces, moves apart to the sides, and the brush changes its shape - from bell-shaped, at low speed, to disk-shaped, at high speed . At the same time, due to the change in the shape of the brush pile from bell-shaped to disc-shaped, effective cleaning of signal lights occurs without the formation of snow banks in the nearby area around the lantern in the cold season, and in the warm season, vegetation is removed in this area.

This achieves the technical result specified in the invention.

The essence of the invention is illustrated in the drawings, where in Fig. 1 shows a general view of attachments for cleaning signal lights, in Fig. 2 shows the design of the brush mechanism, FIG. 3 shows the design of the limiter.

The figures indicate:

1 - frame;

2 - brush mechanism;

3 - limiter;

4 - hitch;

5 - drive;

6 - cross;

7 - rotating shaft;

8 - brush pile;

9 - limiter;

10 - protective screen;

11 - curved chute.

The proposed equipment for cleaning signal lights, contains a frame 1, on which a brush mechanism 2, a limiter 3, a hitch 4 and a drive 5 are installed. pile 8. The crosspiece 6 is replaceable so that it can be replaced along with the brush pile as it wears out.

The brush pile in the center is shortened to clean the central part of the lamp shade, and is made longer along the edges to clean its peripheral parts, while the length of the pile is equal to the height of the light signal lamp. When the brush mechanism rotates at different speeds, the pile along the edges, due to centrifugal forces, moves apart to the sides, and the brush changes its shape - from bell-shaped, at a low speed, to disc-shaped, at an increased speed. At the same time, due to a change in the shape of the brush pile, from bell-shaped in the cold season to disc-shaped in the warm season, either snow-ice formations or vegetation are removed, respectively, both from the lampshade itself and in the nearby area around the lamp.

The limiter 9 consists of a protective screen 10, equipped with a skid, in the rear part of which there is a curved chute 11, which prevents the release of snow or vegetation on the runway, MRD, taxiway, without the formation of an embankment. The curved chute is made of rubber material to prevent damage to lighting equipment in case of accidental operator error.

The proposed equipment for cleaning the signal lights of the airfield is used and operates as follows.

The equipment is hung on the vehicle as mounted using a hitch, and brought to the light signal device (lantern) to be cleaned in such a way that the center of the brush mechanism is located directly above the light signal device (lantern). The operator rotates the brush mechanism with a smooth lowering, until the frame touches the upper alignment of the limiter. The limiter is fixed on the frame on coaxial guides to ensure limited vertical movement in order to prevent the mass to be cleaned from being swept out from under it at the initial moment of cleaning.

The rotation speed is determined based on the density of snow-ice formations or the density of vegetation. When the brush mechanism rotates at different speeds, a longer pile along the edges, due to centrifugal forces, moves apart to the sides, and the brush changes its shape - from bell-shaped, at a low speed, to disc-shaped, at an increased speed. At the same time, due to a change in the shape of the brush pile, from bell-shaped in the cold season to disc-shaped in the warm season, either snow-ice formations or vegetation are removed, respectively.

The vortex flow created by the brush mechanism ejects snow-ice formations or vegetation in the radial direction, while the limiter, creating a directed flow movement, prevents the ejection of the cleaned mass towards the runway, taxiway, MRD.

Upon completion of the cleaning, the operator stops the rotation of the brush mechanism, lifts the lighting cleaning equipment, removes it from contact with the lighting device to be cleaned and moves the vehicle to the next lighting device to be cleaned.

The tests carried out by the applicant and the authors of a full-size model of the proposed attachments for cleaning the training airfield signal lights fully confirmed the correctness of the design and technological solutions laid down.

The proposed technical solution is industrially applicable, since standard equipment, devices used in mechanical engineering can be used for its implementation, and is new, has an inventive step, since no equipment for cleaning signal lights is known from publicly available information, published scientific data and known technical solutions. aerodrome, which makes it possible to ensure year-round high-quality operation of the lighting equipment of aerodromes, namely: to effectively clean the signal lights without the formation of snow banks in the nearby area around the lantern in the winter season, and in the warm season to remove vegetation in this area.

Claims (1)

Equipment for cleaning airfield signal lights, comprising a frame, a hitch, a drive connected to a brush mechanism, a limiter, characterized in that a brush mechanism is installed on the frame, fixed with a hitch, with the possibility of vertical movement and radial rotation around its own axis, which is a rotating a shaft equipped with a replaceable cross, on which, parallel to the axis of rotation of the shaft, a brush pile is placed, and the fibers of the brush pile on the replaceable cross are made of different lengths - shorter in the center and longer at the edges, with the formation of a hollow geometric figure and the possibility of changing their position from vertical to inclined and horizontal by changing the frequency of rotation of the interchangeable cross and their rigidity by replacing them, while a limiter equipped with a protective screen and a curved chute is installed on the frame.

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