CS255589B1 - Snow removal equipment - Google Patents

Abstract

The snow removal device consists of a snow plow blade and a cylindrical brush fitted with a cover placed obliquely behind it. The snow plow blade forms an acute angle with the direction of travel and the axis of the hydraulic motor-driven cylindrical brush forms an angle with the direction of travel at least 5/6 sharper. The device may be fitted with nozzles for spraying de-icing liquid, some of which are directed above the cylindrical brush against the direction of its rotation and some are directed behind the cylindrical brush onto the cleaned road surface.

Description

The invention relates to a snow removal device consisting of a blade shovel and a cylindrical brush positioned at an angle thereto. It is intended in particular for winter maintenance of urban roads.

Snow removal outside the city is carried out by snow blowers, plows or clearing plows. In cities where improved snow removal is desirable, snow brushes are sometimes used, often in the form of powered cylindrical brushes, the disadvantage of which is relatively low performance. At a higher layer of snow, their function fails completely, as they only take up and throw away the snow. Therefore, deeper snow must first be removed. However, there will be a time between sweeping and brushing, as the passing vehicles smother the rest of the snow, so that subsequent brushing is of poor quality or cannot be performed to the required extent. As a result, urban roads are maintained in winter only by clearing snow and then scattering the rest with a considerable amount of de-icing chemicals, which increases maintenance costs and significantly damages the environment. In order to overcome these drawbacks, devices have been developed consisting of a combination of a blade removal and a cylindrical brush placed at an angle thereto. As a rule, the device is rigidly mounted on a vehicle, which thus becomes a special purpose vehicle for snow removal, so that its wider use is limited, leading to an undesirable increase in the fleet necessary for road maintenance. Even behind such a special vehicle, however, there are larger or smaller snow residues that need to be removed by defrosting chemicals.

The snow removal device consisting of a blade stripper and an inclined roller brush according to the invention removes these drawbacks, characterized in that the blade stripper closes an acute angle with the travel direction and the axis of the hydraulic motor-driven roller brush closes with the feed direction.

- 2 walls at least 5% sharper. The apparatus may be provided with de-icing fluid spray nozzles, some of which open above the cylindrical brush opposite the direction of rotation thereof, and some of them open beyond the cylindrical brush to the cleaned road surface.

The advantage of the device according to the invention is that it allows to completely remove even a higher layer of snow, which is first removed from the road surface by a scraper blade, then the remainder swept with a cylindrical brush and its possible other residue dissolved by spraying with thawing solution. Another advantage is that the device is designed as a separate trailer that can be attached to any purpose-built vehicle. The device is simple, easy to manufacture and its operating cost is negligible compared to the effect achieved. It allows minimum dosing of the de-icing agent, which, in comparison with the previous practice, leads to a considerable management of winter road maintenance and at the same time to environmental recovery. The machine is most effective in snow removal and anti-frost roads.

In the drawing, FIG. 1 shows a schematic plan view of the device after removing the top cover, showing the trapezoidal arrangement of the frame, the position of the cylindrical brush and the spray nozzle system. The mouldboard is not visible in the plan. Giant.

shows a schematic side view of the device, in a plane perpendicular to the axis of rotation of the cylindrical brush, the difference in skewness relative to the swath coulter is projected as a seemingly thicker swath coulter attached to the frame carrier by two support bars *

Example

The snow removal device is connected obliquely to the special-purpose vehicle by means of an uneven hinge 1 with a hinge 2. The uneven hinge 1 is rigidly connected to a trapezoidal frame 7 provided with an upper cover 5. angle 25 ° · Behind the scraper blade 4 is mounted a cylindrical brush 3 driven by a hydraulic motor 8, whose axis of rotation forms an angle of 30 ° with the travel direction · The nozzle system for spraying de-icing liquid is located on the frame 7 opposite to the direction of rotation and six nozzles 6 extend beyond the cylindrical brush 3 above the cleaned road surface.

255 589

It is preferred that the frame 7 rests on the cylindrical brush 3, while the release blade 4 is carried approximately 2 cm above the road surface, so that they do not abrasion each other.

When using the spray nozzle system 6 it is necessary to provide a special-purpose vehicle with a tank for a defrosting solution, for example calcium chloride.

Claims (2)

SUBJECT OF THE INVENTION Snow removal device, comprising a demolding blade and an oblique cylindrical brush provided with a cover behind it, characterized in that the demolding blade (4) forms an acute angle with the travel direction and that the axis of the hydraulic motor (8) driven by the cylindrical brush (3) the angle of travel is at least 5% sharper. Apparatus according to claim 1, characterized in that it is provided with nozzles (6) for spraying with de-icing liquid, part of which is above the cylindrical brush (3) upstream and the part is located behind the cylindrical brush (3) above communication surface ·