SU1560672A1 - Working member of rotary snow plough - Google Patents

Abstract

This invention relates to snow removal machines. The purpose of the invention is to increase efficiency by rationally narrowing the snow loading area of the projectile and reducing the path of friction of snow on a fixed casing. The working body of the rotor snowplow contains two half-cutters 3 and 4 with the opposite direction of winding of the blades. Before the semi-cutter 3, a movable valve 11 is installed. The blades of the semi-cutter 3 and 4 throw snow into the window 2 of the throwing apparatus in which the rotor is installed. By moving the valve 11, depending on the parameters of the snow being developed, the zone into which the snow is thrown is limited. This makes it possible to significantly reduce the friction of snow against the casing when snow is moved by the rotor blades. 2 hp ff, 3 ill.

Description

Fig. /

This invention relates to snow removal machines.

The purpose of the invention is to increase efficiency by rational reduction of the snow loading area of the projectile and reduction of the path of friction of snow on a fixed casing.

FIG. 1 shows the working body, front view; in fig. 2 shows section A-A in FIG. one; in fig. 3 is a section bb of FIG. 2.

The rotary snow plow tool includes a housing 1 with a central through window 2. In the housing 1, a milling feeder is mounted, which includes two coaxially located multi-cut half cutters 3 and 4 with the opposite direction of the blades. The half-cutters 3 1 and 4 are rigidly mounted on the drive wa / gu 5. Behind the through window 2 on the case, L is equipped with a throwing device 6, which is equipped with a blade rotor 7, a fixed casing 8 and an exhaust nozzle 9 directed towards the side. 1 and a semi-cutter 3 on the side of the discharge port 9 of the mounting tube in horizontal guides 10, a drive valve 11 connected to the hydraulic head 12 of the control. The horizontal guides 10 are made in the form of through slots in the housing 1, and the hydraulic cylinder 12 is mounted on the back side of the housing 1. Located in front of the valve 11 of the half-cutter 3 has an axial length greater than the axial length of the other half-cutter 4 and is determined by the ratio

1.0.5 (B + 0.5D),

where 1 (is the axial length of the half cutter 3; B is the width of the working body; D is the diameter of the through window 2 in

case 1.

Accordingly, the half cutter 4 has an axial length determined by the ratio

U-B-l, where 1st is the axial length of the half cutter 4.

-.

When throwing snow half-cut

mi 3 and 4 into the propelling apparatus 6 a stream of snow forms a loading zone 13 of which, as a result of interaction with the blade rotor 7, snow forms a prism 14 in front of each blade of the rotor 7.

The snowplow process is carried out with, as follows.

As the working body moves progressively in the direction of arrow G, the snow moves with hemispheres 3 and 4 along arrows E to the middle of the working body. After reaching the through window 2 partially blocked by the flap 11, snow is thrown by screw blades of the half-cutter into the throwing device 6 along arrow J. In the radial rotation plane of the blade rotor 7, this corresponds to the loading zone 13. As a result of the rotation of the rotor 7, the snow flow from the loading zone 13 is trapped alternately, the blades of the rotor 7, forming a prism 14 in front of each of these blades. This prism under the action of centrifugal and Coriolis forces moves along the blade. Under rational loading mode of the throwing apparatus 6, which is provided by installing the valve 11 under the action of the hydraulic cylinder 12, the loading zone 13 is positioned in such a way that while turning the rotor 7 the prism of snow 14 moves to the outer end of its blade, this blade has time to go to the exhaust nozzle 9, and the snow prism 14 is ejected through the pipe 9 in the direction of the arrow K, without being rubbed against the fixed casing 8 of the throwing apparatus 6. The boundary between the half-cutters 3 and 4, defined by their axial lengths 1 ,, and 1d, corresponds to an average rational position of the center of the load zone 13. When developing freshly fallen snow, which has a low density, the area of the load zone 13 increases, and in order to avoid overflow of the milling feeder and the formation of a snow prism in front of the working body of the flap 11, it moves to the left by the hydraulic cylinder 12, increasing the cross section through window 2.

The advantage of the invention is that, by limiting the rational snow loading area of the propelling apparatus, it is possible to significantly reduce the unproductive energy costs of friction of snow on the fixed casing of this apparatus and by redistributing the power flow to the drive of the working body and moving the base machine to increase working speed and productivity snow blower.

Claims (3)

1. The working body of the rotor snowplow, comprising a housing with a central through window, behind which a propelling apparatus mounted in a fixed casing, a throwing device mounted in the housing of a milling feeder, including two coaxially half cutters having an opposite direction of the screw blades, a flap mounted for movement driven relative to the central opening in the body guides parallel to the axis of the feeder, which is, in order to increase efficiency by rational narrowing In the snow loading area of the throwing apparatus and reduction of the friction path of the snow on the fixed casing, the flap is installed behind one of the half-cutter, which has a greater length in the axial direction than the other half-cutter. 2. The operating assembly of claim 1, wherein the drive of the machine includes a hydraulic cylinder mounted on the back side of the housing. 3. Working organ no. 1, characterized in that the length of the floor cutter 1, located in front of the flap, is determined by the ratio , 5 (6 + 0.50), where B is the working width of the working or- Ghana; D is the diameter of the certral window, and the other half cutter 1g has a length determined by the relation U-B-1 ,. Aa   N XsN VSX × FIG. 2  XsN VSX eight FIG J Editor N.Gorvat Compiled by T. Kashlikoya Tehred L. Serdyukova / Proofreader S. Shekmar Order 957 Circulation 456 VNIIPI State Committee on Inventions, Discoveries at FST of USSR 113035, Moscow, Zh-E5, Raushsk iab., D, 4/5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 01 5-5 Subscription