RU1807936C - Concrete placer - Google Patents

Abstract

Usage: in the manufacture of concrete and reinforced concrete. SUMMARY OF THE INVENTION: nozzles are connected to a movable frame by means of two pairs of hinges located perpendicular to each other to change the position of the nozzle. 6 ill.

Description

The invention relates to the manufacture of concrete and reinforced concrete products, in particular to devices for laying and compacting concrete mixtures.

The aim of the invention is to improve the quality of molded products.

In FIG. 1 shows a paver, general view; in FIG. 2 is a section AA in FIG. 1; in FIG. 3 is a section BB in FIG. 2; in FIG. 4 is a section bb in FIG. 2; in FIG. 5- section GG in FIG. 2. In FIG. 6 is a section DD in FIG. 5.

The paver contains a self-propelled noptafl 1 with a movement mechanism 2, a dispensing hopper 3 mounted thereon with a feeder 4 and a movement mechanism 5, mounted on the upper platform of the self-propelled portal 1. Under the discharge end of the feeder 4 there are nozzles 6 attached to the movable frame 7 mounted on the rail 8 of the portal 1 by means of elastic elements 9. In addition, the paver has a mechanism 10 for vertical movements of the nozzle 6. The nozzles 6 are made with symmetrically arranged relative to its longitudinal and ary axes 11 causative agents of oscillations connected cardan shaft 12 and rotated by the motors 14 via a V-belt transmission 15 and synchronizer 16. The nozzle 6 is provided with rollers 17 which are arranged symmetrically about the longitudinal axis and forming its sidewalls. The rollers 17 are attached to the frame 7 through the bearings 18. The walls 19 are rigidly fixed to the latter, preventing concrete from spilling into the side between the rollers 17. The synchronizing shaft 20 couples the synchronizers 16, which ensures synchronous rotation of the exciters 11 (it is possible to place vibrators inside the rollers 17) . In the middle of the transverse beams of the frame 7, bushings are rigidly attached (welded). 21 into which the hinges are inserted

22 with eyes 23. In the holes of the eyes

23 and hinges 26, perpendicular to the hinges 22, are introduced into the holes of the ribs 24 welded to the guide sleeves 25. The shape is indicated by 27.

The paver works as follows.

The mechanism 2 for moving the portal 1 is turned on and the paver is adjusted to form 27. The mechanism 10 for vertical movements of the nozzle 6 is turned on and lowered along the guides 8 to the form 27. The feeder 4 and the mechanism 5 for moving the hopper 3 and the concrete mixture from the hopper 3 are turned on.

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about

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with

the nozzle 6 enters the container between the rollers 17 and the walls 19, and from it into the mold 27. The vibration exciters 11 and the portal movement mechanism 2 are turned on and the paver starts moving along the mold 27, filling it with concrete mix and compacting it.

In the process, it is necessary to ensure that the capacity of the nozzle 6 is partially filled with concrete mixture. The diameter of the rollers 17 should be in the range of 300-500 mm, and the clearance between the rollers 17 should be in the range of 450-650 mm.

When laying and compacting the concrete mixture, the rollers 17 are wound on the concrete mixture, a min under it and a reinforcing mesh placed in it without shifting the latter along the paver.

The hinges 22 and 2.6 provide contact of the rollers with the upper edges of the sides of the mold 27 at any deviations from the horizontal plane, which makes it possible to obtain high-quality products. The thickness of the molded products is always equal to the height of the sides of the mold 27 in whatever position it is on

0

5

0

5

molding post, since nozzles 6 mounted on hinges 22 and 26 can occupy any position, both horizontal and inclined in any direction and at any angle of inclination.

Claims (1)

SUMMARY OF THE INVENTION A concrete paver comprising a self-propelled portal, a dispensing hopper mounted on it, and a feeder mounted on it under the discharge end of the last drive nozzle with vibration exciters symmetrically located relative to its longitudinal and transverse axes and rollers symmetrically located relative to the longitudinal axis forming its side walls moreover, the nozzles by means of elastic elements are fixed to a movable frame placed in the vertical guides of the portal, characterized in that, with spruce enhance quality molded articles, nozzles attached to the movable frame by means of two pairs of hinges disposed perpendicularly to each other for varying the position of the nozzle. / 7 27 f9 go ff Fig. E. Fagl.