SU1532643A1 - Working member of machine for breaking-off compact snow and ice from road pavings - Google Patents

Abstract

The invention relates to machines for cleaning pavement from compacted snow and ice. The purpose of the invention is to improve the quality of cleaning. The scooper contains elastic working tools connected to the weights 5 mounted on the beams 4 and covering the hydraulic vibrator 8 from three sides. The working fluid through the pipeline 9 enters the elastic shell of the vibrator 8, which under the action of the pressure of the working fluid increases in cross section and acts on the tool 7, moving it along with the stripping knife 11 forward. A cleaning knife 11 comes into oscillatory motion. By hydraulic cylinder 3, the frame 2 of the working equipment is lowered until it is in contact with the surface to be cleaned. When an obstacle is hit by a cutting force, a load of 5 with beams 4 rises. 3 il.

Description

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The invention relates to machines for cleaning pavement from compacted snow and ice.

The purpose of the invention is to improve the quality of cleaning.

FIG. 1 is a side view of a cleaver; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2

The compacted snow and ice cleaver contains a base chassis 1 with an upper | chassis, having a frame 2 of working equipment, connected to the base chassis 1 and controlled by a hydraulic lift cylinder 3. To the frame 2 of the working equipment are attached elastic beams in the form of strip springs 4, each of which at the free end contains a load of 5 with plastids 6 rigidly attached to its underside by an elastic working tool 7

The plate 6 is equipped with a Cesky vibrator hydraulic having an elastic rim 8 communicated by a pipeline for 9 s; by the pulpator 10. The tools 7 grab the 8 vibrator case from three sides and carry the stripping knife 11.

In the transport position of the working equipment frame 2, the hydropulsator 10 is turned on and the working fluid of itro pipeline 9 enters the elastic shell 8, which under the action of the pressure of the working fluid increases in cross section and acts on the elastic working infrontrum 7, displacing it together with the blade. 11 forward. In the next oscillation period, the pressure in the hydropulsator 10 drops and the elastic sheath 8 is compressed by the force of the tool 7. Thus, by stripping the knife 11 comes into an oscillatory motion. Then, the work gear is engaged and the base chassis 1 moves progressively. Hydraulic cylinder 3 frame 2 working equipment

together with the elastic beams 4, it is lowered until it touches the road surface to be cleaned. Frequency

pressure pulsations in hydropulsator 10 should be chosen such that it significantly exceeds the natural frequency of oscillation of the system of beams 4 with weights 5; As a result, the effect of vibro-cutting of layers of compacted snow and ice is achieved, which ensures a reduction in cutting forces compared with the static cutting forces of the device. When traveling on an obstacle under the action of cutting forces, the load 5 with beams 4 moves upwards, excluding damage to the device. To prevent damage to the vibrator 8's elastic sheath, the plate 6 is mounted on the weights 5 with a gap relative to the tool 7.

In the process of cleaning the road covering, which has a track in the transverse direction, under the action of the weight

5 5 and the elastic forces of the beams 4, high-quality surface cleaning is achieved.

Claims (2)

Invention Formula Q 1. A working body of a cleaver on compacting snow and ice from pavements, containing a base chassis with a hydraulic system, a hinge piece including beams associated with a lift cylinder and carrying on themselves elastic working tools with a stripping knife associated with a hydraulic vibrator In contrast, in order to improve the quality of cleaning, “the hydraulic vibrator is made with an elastic sheath enveloped by working tools on its three sides. 2. The working body for a clause characterized in that, for the purpose of 5 Elimination of self-oscillations, it is equipped with weights attached to each beam and rigidly connected to the working tool. five f / 7 // # and  ig.2  1VD 5 y well -g