Roller device for compacting the ground comprising slip control
AssigneeWacker Construction Equipment AG
InventorWolfgang Fervers
Life of this patent
Estimating the term…
Abstract
A roller device for compacting the ground comprising a rotatably driven first roller facing, whose speed can be modified, at least within a certain range. Device includes a unit for determining the vertical distance between a surface of a compacted ground lying behind the first roller facing and a lowest point of the first roller facing, and by a speed regulating device for modifying the speed of the first roller facing, based on said distance. The speed regulation device allows the speed of the roller facing to be adjusted in such a away that slip is prevented without determining the actual slip between the roller facing and the ground.
Claims20
A roller apparatus for soil compaction comprising:
- a first roller tire driven in rotation, whose speed of rotation is variable at least within a certain range;
- a determining device for determining a vertical distance between a surface of the compacted soil lying in the direction of travel behind the first roller tire and a lowest point of the first roller tire, and
- a speed of rotation adjustment device for varying the speed of rotation of the first roller tire as a function of the distance.
A roller apparatus for soil compaction comprising:
- a first roller tire driven in rotation, whose speed of rotation is variable at least within a certain range;
- a determining device for determining a vertical distance between a surface of the compacted soil lying in the direction of travel behind the first roller tire and a lowest point of the first roller tire, and
- a speed of rotation adjustment device for varying the speed of rotation of the first roller tire as a function of the distance, wherein the distance is defined as positive if the surface of the compacted soil lies at a higher vertical level than the lowest point of the first roller tire, wherein in the converse case the distance is defined as negative, and wherein the speed of rotation adjustment device reduces the speed of rotation of the first roller tire when the distance is above a predetermined upper limiting value and increases the speed of rotation when the distance is below a predetermined lower limiting value.
A roller apparatus for soil compaction comprising:
- a first roller tire driven in rotation, whose speed of rotation is variable at least within a certain range;
- a determining device for determining a vertical distance between a surface of the compacted soil lying in the direction of travel behind the first roller tire and a lowest point of the first roller tire, and
- a speed of rotation adjustment device for varying the speed of rotation of the first roller tire as a function of the distance, wherein a distance measurement device is provided for measuring a vertical distance between the surface of the soil lying behind the first roller tire and a predetermined reference point on the roller apparatus, and wherein the determination device calculates the vertical distance as the difference between a vertical distance, predetermined by the structure of the roller apparatus, between the reference point and the lowest point of the first roller tire and the vertical distance measured by the distance measurement device.
A roller apparatus for soil compaction comprising:
- a first roller tire driven in rotation, whose speed of rotation is variable at least within a certain range;
- a determining device for determining a vertical distance between a surface of the compacted soil lying in the direction of travel behind the first roller tire and a lowest point of the first roller tire, and
- a speed of rotation adjustment device for varying the speed of rotation of the first roller tire as a function of the distance,
- wherein at least one further roller tire, driven in rotation, is provided, wherein
- the roller apparatus is movable forward and backward;
- at least two roller tires are provided whose speed of rotation is variable;
- the rearmost in each case viewed in the respective direction of travel of the two roller tires is assigned a determining device for determining the vertical distance between the surface of the compacted soil lying behind that roller tire and the lowest point of that roller tire, and wherein
- the speed of rotation adjustment device for varying the speed of rotation of the two roller tires is formed as a function of the distance determined in each case.
A roller apparatus for soil compaction comprising:
- a driven roller tire having a variable speed of rotation;
- a determining device that determines a vertical distance between a surface of compacted soil Lying in the direction of travel behind the roller tire and a lowest point of the roller tire, and
- a speed of rotation adjustment device that varies the speed of rotation of the roller tire as a function of the determined distance.
Dependencies are inferred from the claim text.