SU1735014A1 - Working member of finishing machine - Google Patents

Abstract

The essence of the invention: the working body is equipped with movable brackets with T-shaped in cross-section annular grooves. The support flange is made in the form of a crosspiece of radially located supporting rod elements. The smoothing roller is cylindrical with rounded ends and T-shaped coupling elements at one of the ends. In this case, the cross-pieces of the latter are placed in the annular slot of the bracket. The rolls and crossmembers of the coupling elements are in contact with the rolling bodies, respectively, with the surface of the supporting rod elements and the walls of the annular grooves of the brackets. 4 il.

Description

The invention relates to the treatment of non-hardened surfaces, namely, bites for compacting and smoothing concrete surfaces, and can be used in the final finishing of pavements, runways, as well as at plants of the building industry.

 The purpose of the invention is to increase productivity.

FIG. 1 shows the device, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 is a view B in FIG. 2; in fig. 4 is a view of B in FIG. one.

The device contains a vertical housing 1 installed in it by means of bearings drive vertical shaft 2 from the drive with multi-stage gear shifting. At the end of the shaft 2 mounted support flange, made in the form of a cross from radially located supporting rod elements 3 with smoothing rollers 4 at the end of each

element made cylindrical with rounded ends. Near the housing 1, the supports 5 are rigidly fixed on the core elements 3 to which one ends of the linear displacement elements are attached, for example springs 6, the other ends of which are fixed to the movable brackets 7 in which the core elements are symmetrically located relative to the axis of the core elements 3 annular grooves 8 T-shaped in cross section. Rolling bodies are mounted in the grooves, for example, bearings 9 in contact with the crossbars 10 of coupling elements 11, for example pins made T-shaped and fixed to one of the end parts of the roll 4.- To enable the rollers 4 to rotate around the axes of the supporting rod elements 3 in the rollers there is a through circular hole 12 in contact through the rolling bodies, for example bearings 13. with

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the surface of the supporting rod elements 3, the height of the brackets 7 is chosen smaller than the diameter of the cylinder

roll.

The brackets 7 are mounted on supporting rod elements 3 movably along it in longitudinal guide grooves 14, for example, on rolling bearings. This design avoids lateral displacement of the brackets. It is also possible to design the guides when they are located, for example, from above along the axis of the rods in the form of a lever.

The working device is mounted on the portal 15, which can be steadily displaced in different directions. Portal 15 is installed on an autonomous chassis.

In order to prevent precipitation and concrete mixture from entering and in connection with this premature damage to the elastic element in the form of springs, the latter is enclosed in a casing 16.

The device works as follows.

After installing the machine on the surface to be processed, the drive of the forward movement of the portal 15 and the drive with multi-stage gear shifts of the vertical drive shaft 2 are turned on. In this case, the rolls 4 receive a circular motion relative to the axis of the drive shaft 2 due to the rigid attachment of bearing members 3 on which the rolls 4 are symmetrically mounted. At the same time, the rollers 4 make a rotational movement around their axis of symmetry due to the adhesion forces with the smoothing surface.

The forces of inertia arising from the circular motion of the rolls 4 will act on the springs 6, as a result of which the smoothing rolls 4 begin to move in 15

the diagonal direction along the axes of the rods 3 with simultaneous rotation along the guide grooves 8 of the brackets 7, thereby increasing the area to be treated. Upon reaching the limit calculated extension of the brackets 7, the drive shaft 2 with the rods 3 rises, the springs 6 are compressed and the cycle repeats again.

As the diameter of rotation of the rolls increases and an insufficient radial effect on the spring occurs, the speed of rotation of the drive shaft changes. The rounded shape of the outer face of the rolls 4 provides less resistance to their movement in the unconsolidated mass of concrete.

The expected increase in productivity is 2.5 times.

Claims (1)

Invention Formula The working body of the finishing machine, containing a drive vertical shaft with a supporting flange mounted on its end with radially arranged smoothing rollers, is characterized in that, in order to increase productivity, it is equipped with movable brackets with T-shaped annular grooves in cross section made in the form of crosses of radially located supporting core elements, each smoothing roller - cylindrical with rounded ends and T-shaped coupling elements on one of ortsov, which cross member has a annular groove bracket, wherein the rollers and the cross coupling elements are contacted by the rolling bodies respectively with the surface carrying the bar elements and the walls of the annular grooves of brackets. nv v vu 525 36 Phie.1 Aa L P 1. FIG. 2 g., l 1 /, FB VVAA / WWVWWVV Fig.b fojS H-j five PhieZ 16th