SU996606A1 - Concrete-laying machine - Google Patents

Description

The invention relates to the construction and can be used for laying and compaction of the coating.

A known machine for laying and compacting the underlying layer, for example, of concrete, comprising a bottomless bunker mounted on a frame with metering valves, a moving mechanism, sealing members and a lifting mechanism.

The closest technical solution to the invention is a paver containing a self-propelled crawler shatsi, on which a sealing working body is placed between the caterpillars, and a turning mechanism 2.

A disadvantage of the known pavers is the poor quality of the paving.

The purpose of the invention is to improve the quality of the stacked coating.

This goal is achieved by the fact that in a paver containing a self-propelled chassis with tracked engines, between which a sealing device is placed symmetrically to the longitudinal axis, and the mechanism, the sealing device is made in the form of front and rear drums, each of

which are rigidly connected by means of a common shaft with rollers of tracked propellers, with the diameter of each rolling drum being equal to the distance between the outer surfaces of the upper and lower branches of the track.

FIG. 1 schematically shows the proposed paver, oGofitt view; in fig. 2 - the same plan view;

10 in FIG. 3 - kinematic scheme of the paver.

The paver contains: self-propelled chassis with tracked engines 1 and rollers 2 and 3 connected

15 with frame 4.

The sealing device is placed between the caterpillar movers symmetrically to the longitudinal axis n made in the form of the front 5 and rear

20

6 drums, each of which is rigidly connected by means of a common shaft

7 with rollers 2 and 3, and the diameter of each rolling drum 5 and € is equal to the distance between the outer

25 surfaces of the upper and lower branches of the caterpillar.

The drive of the rolling reels 5 and b is driven from one or two electric outlets 8. On axis 7,

Claims (2)

30 is fixed with a chain wheel sprocket 9 mounted on the output shaft of the gearbox 10. Brackets 11 and 12 are mounted on frame 4. Bracket 11 has a switch 13 suspended through a switchgear - scraper conveyor 14, the height of which is adjusted by a screw 15. On bracket 12 through a lever 16, the vibrobrus 18 is suspended from the adjusting screw. The turning and lifting mechanism 19 is installed in the center of the concrete shell and contains an axis 20 and a bearing p 21. The concrete paver works as follows. A mass, for example a concrete solution, is discharged onto the substrate. When the stacker is moving, the inclined scraper conveyor 14 makes laying the solution in an even layer with simultaneous movement of the excess material along the machine movement lane. The thickness of the stacked layer is regulated by screw 15. The laid layer is compacted by caterpillars and rolling drums 5 and 6. By selecting the appropriate width of the tracks, you can provide the optimum specific pressure of the concrete paver on the compacted layer over the entire width of the laid strip, since the diameter of each rolling drum is the distance between the outer surfaces of the upper and lower branches of the caterpillar. The paver has a clear permeability, due to the tight coupling of the rolling drums 5 and b with the rollers 2 and 3, not only the tracks, but also the pointing drums leading into it. In case of insufficient compaction with the help of tracks and rolling drums, vibrating bar 18 is used as an additional sealing element. The concrete paver is turned over to substitute a parallel strip with the following procedure. The lifting and turning mechanism 19 is turned on, while the supporting plate 21 is lowered onto the layer compacted by the front rolling drum 5, after which the concrete paver rises to a height at which the contact of the conveyor 14 with the leveling mass is broken, and the tracks of the rolling drums 5 and 6 and the vibrating rod 18 - with compacted layer. The paver is then rotated 90 ° around axis 20 and lowered onto the tracks, while the top 21 rises, the drive moves and the paver moves transversely to the width of the grab, after which it rises again, rotates another 90, lowers onto the tracks and starts to lay a new strip. Using the proposed paver improves the quality of the pavement being laid. An invention of a paver comprising a self-propelled chassis with caterpillar engines, between which is symmetrically the longitudinal axis of the accommodation device and a swivel mechanism, characterized in that, in order to improve the quality of the laid coating, the sealing device is made in the form of front and rear rolling drums, each of which is rigidly connected by means of a common shaft with rollers of tracked propellers, with the diameter of each rolling drum being equal to the distance between the outer surfaces t mi upper and lower branches of the caterpillar. Sources of information taken into account during the examination 1. USSR author's certificate 482541, cl. E 04 F 21/20, 1971. 2. USSR author's certificate number 505766, cl. E 01 C 19/48, 1973. } S 8 / 21 Figure 1 eleven