SU1677152A1 - Throwing working member of snow cleaner - Google Patents

Abstract

The invention relates to machines for winter maintenance of roads and airfields, preferably of the type of high-speed snow plows with a swinging effect. The purpose of the invention is to increase the distance of snow throwing by increasing

Description

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

The purpose of the invention is to increase the snow throw distance by increasing the efficiency of using the kinetic energy of the oncoming airflow.

FIG. 1 shows a snow blower tool, general view; in fig. 2 - the same, top view; in fig. 3 is a cross section A - A in FIG. 2

The working body of the snow thrower of the throwing action is mounted on the base vehicle 1 and contains a blade 2 with a conical frontal surface mounted in the usual way on the suspension 3 at an angle to the longitudinal axis of the snow blower. On the dump 2 by means of a hinge 4, a side otkrylok 5 is fixed, made in the form of tapering towards the outer end k; faucet and fitted with a diagonal 6.

Before dump 2 is mounted with a gap h on the side levers 7 aerodynamic screen 8 with a cylindrical, concave in a vertical plane frontal surface (Fig. 3). The screen 8 is made curved, concave in plan (Fig. 2). The front end of the screen 8 is removed from the front end of the blade by a distance a greater than the distance a by which the rear end of screen 8 is removed from the rear end of the blade 2.

The rear end of the aerodynamic screen 8 is located at an acute angle a to the side open 5, and tangent to the rear end of the screen 8 in the horizontal plane crosses the side open velclock 5 long / middle (Fig. 2), at a distance of 0.5 / from the blade 2. Lower the edge of the aerodynamic screen 8 is located with a gap H vertically relative to the lower edge of the blade 2 (Fig. 3).

The operation of the snow plow, which discards the patrol maintenance of roads and airfields, is carried out as follows.

With the forward movement of the machine

penetrates through the lower gap H under the aerodynamic screen 8 onto the surface of the blade 2, spreads along this surface towards the rear end of the blade 2 and the side opener 5. Blade 2 cuts from an array of chips of freshly fallen snow, which moves along the blade surface one direction with the flow of air, then goes to the surface of the side opening 5 and is ejected along a ballistic trajectory. The main flow of oncoming air interacts with the aerodynamic screen 8, bending along arrow B, and then directed along arrow G at an acute angle and toward the middle of the side opening 5, providing

additional aerodynamic effect on the ejected stream of snow in the direction of the arrow D.

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Claims (2)

1. Worker orgch snow plow that contains a blade with a conical frontal surface and side flap in the form of a confuser, characterized in that, in order to increase the snow throwing distance by increasing the kinetic energy of the oncoming air flow, it is fitted with a gap in front of the blade there is an aerodynamic screen with a cylindrical frontal surface that is concave in its plan, the screen being located at an acute angle to the lateral wing. 2. Working body according to claim 1, characterized in that the intersection point in terms of a tangent to the aerodynamic screen and the side flap is located in the middle of the latter. vy / 2 fig.Z