SU604695A2 - Concrete-placing device for units moulding bodies of rotation - Google Patents

Description

one

This invention relates to the manufacture of pipes of concrete and reinforced concrete.

Known paver for the main author. St. No. 500064, which contains a bunker mounted on a trolley and a distribution chute rigidly connected with the latter with vibrators and a cheek placed inside it, the final turns of which are made by the concrete mixers in the form of cylindrical rods installed parallel to the screw axis and last nozzles with boosters mounted nozzles for water supply.

However, in such a concrete paver, the density and uniformity of distribution of the mixture over the surface of the mold are insufficient.

The purpose of the invention is to reduce the time of delivery of the concrete mix to the form and increase the density.

For this, the paver contains a bunker mounted on the trolley and a distribution chute rigidly connected with the latter with vibrators and a screw placed inside it, the final turns of which are made with concrete mixers in the form of cylindrical rods installed parallel to the screw axis, and on the distribution chute Above the first and last turns with boosters are mounted nozzles for water supply, equipped with a thrower in the form of a squirrel-wheel mounted on the output end of the trough oosno the feed auger, the inner diameter of the squirrel cage is equal to the diameter of the outlet chute.

FIG. 1 shows a paver in a working position; in fig. 2 is a section along A-A in FIG. one; in fig. 3 - thrower; on

FIG. 4 is a section according to BB in FIG. 3

The paver for forming the rotation bodies has a self-propelled trolley 1 with a hopper 2 for the mixture, inside which the driving screw 3 is mounted, and a feeder 4. The feeder is equipped with a thrower in the form of a squirrel wheel 5 mounted coaxially using arc-shaped brackets 6 and 7 on the free its end, and the inner diameter of the squirrel wheel 5 is equal to the diameter

feeder outlet 4.

The squirrel wheel is driven by an electric motor 8. The feeder 4 is a chute of a closed cross section,

bounded on the side facing the base of the centrifuge 9, pivoting discharge flaps 10 connected to the power cylinders 11. The feeder is equipped with pneumatic vibrators 12 and nozzles 13 for spraying water.

The paver works as follows.

The concrete mixture is loaded into the hopper 2, moved by a self-propelled trolley 1 to the centrifuge 9, and a thrower is introduced into the mold 14. The cheeks 3 are driven into rotation, with which the concrete mix is fed to the thrower. An electric motor 8 is turned on, causing the squirrel wheel 5 to rotate. The concrete mixture coming from the trough of the feeder 4 is picked up by the squirrel-wheel blades and is thrown on the inner surface of the form 4 in a uniform layer. In this case, the self-propelled carriage 1 moves the feeder 4 with the spreading device forward. After the mold is loaded, the mixture is additionally compacted by rotating the centrifuge. Upon completion of work with the help of power cylinders

11, gutter flaps 10 are opened to clean it from the remaining concrete mixture.

The flaps 10 can be used to additionally load the mold with concrete.

Claims (1)

Invention Formula The paver for the installation of the formation of bodies of rotation on the author. St. No. 500064, characterized in that, in order to reduce the time that the concrete mixture is supplied to the mold and increase the density, it is equipped with a thrower in the form of a driving squirrel wheel mounted on the output end of the trough coaxially feeding the screw, and the inside diameter of the squirrel wheel is equal to the diameter of the outlet of the chute. / J Rig.