A pressure wheel assembly of an automatic road and bridge road roller

Abstract

The invention provides a pressing wheel assembly of an automatic road and bridge pavement roller and belongs to the field of engineering machinery, aiming at solving the problem that air in soil cannot be completely discharged through an existing pavement roller. The pressing wheel assembly of the automatic road and bridge pavement roller comprises a frame and a pressing wheel, and further comprises a cylindrical pin wheel; wheel shafts are arranged at the two ends of the pin wheel respectively in a stretching manner; the pressing wheel assembly further comprises two supporting rods; one end of each supporting rod is connected with a frame and the other end of each supporting rod is movably connected with the corresponding wheel shaft; the pin wheel is arranged in front of the advancing direction of the pressing wheel; a plurality of hollow air outlet pipes are arranged on the outer wall of the pin wheel; air outlet columns are arranged in the air outlet pipes; the air outlet columns are internally provided with slide grooves; the slide grooves are opened at the rear ends of the air outlet columns; the pressing wheel assembly further comprises a screw rod with a slide block at one end; the screw rod is fixed with an outer wall of the pressing wheel; the slide block is arranged in the slide grooves and a compression spring is arranged at one end of each of the slide blocks and the slide grooves; the compression springs push the air outlet columns so that the outer ends of the air outlet columns are leveled with the outer ends of the air outlet pipes; the air outlet columns can be pushed to compress the compression springs so that the air outlet columns are retracted into air inlet pipes. By virtue of the pressing wheel assembly, the construction quality can be improved.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery and relates to a pressure wheel assembly of an automatic road and bridge road roller. Background technique [0002] As construction machinery, road rollers can roll sandy, semi-cohesive and cohesive soils, subgrade stabilized soils, and asphalt concrete road surfaces, and are widely used in filling and compacting operations for large-scale engineering projects such as roads, railways, airport runways, dams, and stadiums. . [0003] Existing road rollers can only use rollers to compact the surface of the land. Due to the limited extrusion force, the air inside the land cannot be fully squeezed out, and the compaction effect is poor. Therefore it is necessary to improve. Contents of the invention [0004] The object of the present invention is to solve the above-mentioned problems in the prior art, and provide an automatic road and bridge roller assembly that can squeeze the air in...

AI Technical Summary

Problems solved by technology

[0003] Existing road rollers can only use rollers to compact the surface of the land. Due to the limited extrusion force, the air inside the land cannot be fully squeezed out, and the compaction effect is poor.

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