Impact roller incorporating soil leveler
AssigneeCompaction Technology (Soil) Limited
InventorAubrey R. Berrange
Life of this patent
Estimating the term…
Abstract
Compaction of a soil surface is achieved by means of a machine (10) which has a movable, wheeled carriage (20) and an impact roller coupled resiliently to the carriage so as to move together with the carriage. The impact roller has one or more out-of-round compactor masses (12) designed to apply periodic impact blows to the soil surface (36). A soil working implement, in the form of an upright scraper blade (44) is carried by the carriage in a position trailing the impact roller. The function of the blade is to scrape soil into the localized indentations (40) that are formed in the soil surface by the periodic impact blows applied by the compactor mass or masses. This smooths out the soil surface for subsequent passes and reduces the shock loading on the tractive vehicle which pulls the carriage.
Claims17
A soil compaction machine which comprises:
- a movable, wheeled carriage,
- a pair of impact rollers which are coupled to the carriage for movement with the carriage and each of which comprises an out-of-round compactor mass, the impact rollers being arranged in spaced apart, side by side relationship, the impact rollers being arranged to apply periodic impact blows to a soil surface when moved in an operative, forward direction over the soil surface with the carriage, such periodic impact blows forming alternating humps and depressions in the soil surface along spaced apart tracks traversed by the respective impact rollers, and
- for each impact roller, a soil working blade which is carried by the carriage in a position trailing behind the respective impact roller and which is oriented transversely to the forward direction, each blade having a transverse dimension corresponding to the width of the track traversed by the respective impact roller, the blades operating to cut soil from the humps and to distribute that soil into the depressions and thereby perform a soil levelling action in the tracks traversed by the impact rollers.
A soil compaction machine which comprises:
- a movable, wheeled carriage,
- an impact roller which is coupled resiliently to the carriage for movement with the carriage and which comprises an out-of-round compactor mass, adapted to apply periodic impact blows to a soil surface over which it is moved by the carriage,
- a soil working blade which is carried by the carriage in a position trailing the impact roller so as to direct soil from the soil surface into localised indentations that are formed in the soil surface by the periodic impact blows applied by the compactor mass, and
- lifting and lowering means for lifting and lowering the blade with respect to the soil surface,
- wherein the lifting and lowering means comprises links to which the blade is pivotally connected, a shaft to which the links are solidly connected and one or more hydraulic cylinders acting between the carriage and the shaft, extension or retraction of the cylinder or cylinders causing the shaft and links to rotate and the blade to move up or down.
Dependencies are inferred from the claim text.