SU1689500A1 - Working equipment of throw-type snow cleaner - Google Patents

Description

The invention relates to the field of machines for the winter maintenance of roads and airfields, mainly of the type of high-speed plow snowplows

discarding action. The purpose of the invention is to increase the efficiency by localizing the snowfall zone along the upper edge of the blade. The working equipment of the snow thrower of the throwing action contains a conical blade 1 with a canopy 4 bent down and wand 7. Side opener 7 is mounted in front of the rear end of the blade 1 by means of a pivoting lever 5 placed in the cutout of this rear end of the blade, at an angle γ forward and with a clearance b in the surface the blade in the horizontal plane, and the downward-curved visor 4 is mounted on the front half of the blade 1.3 Il.

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The invention relates to machines for the winter maintenance of roads and airfields, mainly of the type of high-speed plow snow plows with a swinging action.

The purpose of the invention is to increase the efficiency by localizing the snowfall zone along the upper edge of the blade.

FIG. 1 schematically shows the working equipment of the snow thrower of the throwing action, axonometry; in fig. 2 the same, top view; in fig. 3 is a view A of FIG.

2

The working equipment of the snow thrower of the throwing action contains a conical blade Ί installed in the usual way by means of the suspension 2 at an angle a to the direction of movement of the machine, indicated by arrow B (figure 1).

In the lower part, the blade 1 is equipped with a cutting knife 3 and in the upper part, with a visor 4 bent at an angle β relative to the horizon.

Before the rear end of the blade 1 by means of a swivel lever 5 placed. in the cutout 6 of the rear end of the blade, the side opening of the blade 7 is mounted at an angle y forwards and with a clearance b relative to the surface of the blade 1 (FIG. 3). The rotary lever 5 is rigidly fixed on the axis 8 mounted in the bearing assembly 9 on the back of the blade 1 and provided with a lever 10, which, in turn, is connected to the rod of the hydraulic cylinder 11, also fixed on the back of the blade 1. The curved downward visor 4 is mounted on the front half of the blade 1 and is made with a length of 0.51, where I is the length of the blade 1 (figure 2).

The interaction with the snow of the working equipment of the snow plow of the throwing action is carried out as follows.

With the forward movement of the snow plow along arrow B at a speed of more than 7 m / s, fresh snow enters the cutting knife 3 from the array on the road surface along arrows B and due to the action of inertial forces moves in an ellip *. The paths shown by the dotted lines in FIG. 1 and 2, along the conical frontal surface of the blade 1. The bulk of the snow entering the front half of the blade 1 enters the visor 4 that is bent down and along arrow D is thrown down under

angle β to the horizon, again falling on the road surface in front of the blade, but shifted along its length towards the rear end of the blade 1.

The specified offset is determined by the magnitudes of the angles cr and β and the speed of the snow thrower. The strip of snow massif located on the road in the zone of action of the rear end of the blade 1. is captured by the side flap 7, which simultaneously increases the blade width of the blade 1. This part of the snow flow moves along oval (with a cylindrical shape of the frontal surface of the button 7) trajectories also shown by a dotted line in fig. 1 and 2, and is ejected by arrows D into the zone of capture of the middle part of the blade 1. From this zone, the snow coming from the massif on the road surface, from the visor 4 bent downwards and the side opener 7, moves along the blade 1 and is thrown away from the direction of movement snow plow on arrows E, making further flight along a ballistic trajectory. With a low speed of the snowplow and a side squeeze 7 raised by means of a hydraulic cylinder 11, the blade 1 carries out a shifting effect on the snow when the drag prism formed in front of the blade moves to the side roller. At low speed and lowered wing 7, the blade 1 performs a cumulative effect, which is necessary, for example, in the formation of gaps in the snow shaft at intersections, at transport stops, side trips, etc.

Claims (1)

Claim Working equipment of the snow thrower of the swinging action, containing a blade installed at an angle to the direction of movement and made with a curved visor directed to the frontal surface, and an opener mounted in front of the rear part of the blade with the ability to move relative to it, localization of the snowfall area on the upper edge of the blade, the opening of the snow canopy is mounted so that it can move in a vertical plane, is located with a gap relative to the frontal erhnosti courage, forming with its front edge an obtuse angle, and wherein said visor disposed in front of the blade. 1689500