Electric Drive Wheel Set for Soil Compactor Transport
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Solution Overview
Problem
Existing soil compaction devices are cumbersome and require significant effort to transport, especially larger and heavier models, due to complex and heavy chassis designs that complicate movement and maintenance.
Innovation Solution
A soil compaction device with a lower mass compaction plate and an upper mass coupled via a vibration decoupling device, featuring an electric drive for rolling bodies to facilitate easy transport, eliminating the need for complex extension or pivoting mechanisms and reducing wear and maintenance costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a complex extendable chassis mechanism is used to enable transport, then the device can be transported, but the device becomes structurally complex, heavy and expensive
Solution Approach 1:
The patent extracts the transport function from a complex extendable chassis mechanism and implements it through a simple wheel set attached directly to the compaction plate. The vibration plate is tilted around the wheel set to lift the compaction plate off the ground, separating the transport function from the compaction function and eliminating unnecessary structural complexity.
Solution Approach 2:
The device is divided into distinct functional segments: the compaction plate for ground contact and vibration, the wheel set for transport, and the vibration exciter for generating vibrations. This segmentation allows each component to be optimized for its specific function without interfering with others, reducing overall system complexity.
2Device complexity
If a simple wheel set is attached directly to the compaction plate for transport, then the structure is simplified, but a considerable amount of force is still required to push or pull the machine
Solution Approach 1:
The patent replaces manual mechanical pushing or pulling with an electric drive system. An electric motor coupled to the wheel set provides automated propulsion, eliminating the need for operators to exert considerable force to move the device, especially important for larger and heavier vibration plates.
3Ease of operation
If the compaction plate is tilted around the wheel set for transport, then the entire vibration plate can be transported or rolled away, but the device requires manual balancing and guidance during transport
Solution Approach 1:
The electric drive system provides automated propulsion that reduces the need for manual balancing and guidance during transport. The electric motor handles the propulsion function, allowing operators to simply guide the device while the actual transport movement is effected by the electric drive and rolling bodies.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables comfortable and effortless transportation of soil compaction devices with reduced operational and maintenance costs, as the electric drive supports movement, allowing operators to guide the device while the rolling bodies handle the transport, thus improving operational efficiency and reducing wear on components.
Implementation Method 1
a vibration decoupling device between the lower mass and the upper mass, with the lower mass having the compaction plate that serves as a ground contact plate and on which the soil compaction device rests on the ground
Implementation Method 2
an electric drive for driving at least one the rolling body, with an electrical energy storage device being provided for supplying the electric drive with electrical energy
Implementation Method 3
one or more rolling bodies for transporting the device
Data Source
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Figure 8
AI summary
A soil compaction device is described, comprising a lower mass (1) having a compaction plate (2), an upper mass (4) coupled to the lower mass (1) via a vibration decoupling device (3), a vibration exciter (6) acting on the compaction plate (2), a chassis (7) with one or more rollers (9) for transporting the device, and an electric drive (15) for driving at least one of the rollers (9). The chassis (7) is fixedly attached to the lower mass (1) and is arranged at a distance from a contact surface of the compaction plate (2) such that the soil compaction device can be tilted via the rollers (9) in such a way that the compaction plate (2) does not touch the ground in a transport position, but the rollers (9) do touch the ground and bear the weight of the device.