Soil compacting device having an electric drive
AssigneeWacker Neuson Produktion GmbH & Co. KG
InventorMichael Steffen
Life of this patent
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Abstract
A soil compacting device includes an upper mass and a lower mass which is coupled to the upper mass by a spring. The lower mass is movable relative to the upper mass and comprises a ground contact element for soil compaction. A drive for generating a working movement of the ground contact element is provided on the upper mass, the drive has a tamping device and an electric motor for driving the tamping device. The tamping device has a crank wheel that can be driven in rotating manner by the electric motor, a connection rod coupled to the crank wheel, and a tamping piston which can be moved in reciprocating fashion and is coupled to the connection rod and which interacts with the spring. The electric motor has a stator and a rotor. The rotor is rigidly or elastically coupled to the crank wheel.
Claims15
A soil compacting device, comprising:
- an upper mass;
- and
- a lower mass which is coupled to the upper mass by a spring and which is movable relative to the upper mass, wherein the lower mass comprises a ground contact element for soil compaction;
- wherein
- a drive for generating a working movement of the ground contact element is provided on the upper mass;
- the drive has a tamping device and an electric motor for driving the tamping device;
- the tamping device has:
- a crank wheel that can be driven in rotating manner by the electric motor, a connection rod coupled to the crank wheel, and a tamping piston, which can be moved in a reciprocating fashion, which is coupled to the connection rod, and which interacts with the spring;
- the electric motor has a stator and a rotor, wherein the stator encloses the rotor over an angle of less than 360 degrees;
- and
- wherein
- the rotor is rigidly or elastically coupled to the crank wheel.
Dependencies are inferred from the claim text.