SU1740177A1 - Working member of finishing machine - Google Patents

Abstract

SUMMARY OF THE INVENTION: The intermediate element of the working body is made in the form of a torsion of elastic disks connected by inclined and circumferentially arranged rods fixed to the ends of the shaft sections. The oscillation pathogen is made in the form of a planetary gear with unbalances attached to the carrier satellites. The sun wheel and the carrier are connected respectively to the engine and the upper end of the shaft. 2 Il.

Description

The invention relates to the construction industry, namely to the production of concrete products.

The purpose of the invention is to improve the quality of the surface to be treated and to reduce the specific energy intensity.

Figure 1 shows the working body of the finishing machine; Fig. 2 is a kinematic diagram of the vibration exciter.

The working body contains a smoothing disk 1 mounted on the lower end of a composite of sections of a vertically movable shaft 2. The sections of the latter are interconnected by an intermediate element in the form of a torsion 3 of connected elastic rods 4 and disks 5. The upper end of the shaft 2 is connected to the engine 6 through a planetary gear consisting of a sun wheel 7, satellites 8 with unbalances attached to them 9, drove 10 and gear 11 mounted on housing 12.

The working body of the finishing machine works as follows.

When turning on the engine 6 working body with the help of the adjustment mechanism

a height (not shown) is lowered onto the surface to be treated with fresh concrete, and then compacts and at the same time flattens it with disc 1 during relative translational movement of the product or finishing machine. In this case, the torque is transmitted to the sun gear 7 and through the satellites 8 when they are driven around the crown of the gear 11 - the carrier 10. At the same time, when the satellites 8 rotate with the unbalances attached to them 9, alternating pairs of inertial forces are tangential to the circumference of their rotation. The moment of the pairs of these forces is added or subtracted with a constant torque on the carrier 10 from the engine 6, thereby creating torsional oscillations of the shaft 2. Next, these oscillations through the torsion 3 are transmitted to the shaft 2 and the disk 1, causing the latter to rotate irregularly. Disturbing forces from torsional vibrations of the disk 1 create pulsating tangential shear stresses on the concrete surface, which significantly increase the smoothing ability of the working body. In this case, due to the emerging forces

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Claims (1)

resistance on the disk 1 during operation and application of torsional vibrations, elastic deformation of the twisting of the rods 4 of the torsion 3 occurs, which causes a vertical-axial movement of the shaft 2, providing periodic oscillations of the disk 1 normal to its working surface. Claims of the Worker Body of a finishing machine comprising a vertically movable smoothing disc mounted on the lower end of a composite of shaft sections connected by an intermediate element, kinematically connected with a rotation drive, and 0 a vibration exciter, characterized in that, in order to improve the quality of the surface to be treated, to reduce the specific energy consumption, the intermediate element is made in the form of a torsion made of disks connected by inclined and circumferentially resilient disks mounted on the ends of the shaft sections, and the exciter is in the form of a planetary gear with unbalances attached to the carrier satellites, the sun wheel and the carrier are connected respectively to the engine and the upper end of the shaft. 1e; eleven YU 1 eight FIG. 2