Electrical Vibratory Device for Compacting Machine

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Solution Overview

Problem

Hydraulic-driven vibratory devices for compacting machines lack the rapidity and precision required for adjusting vibrations, especially in compacting systems that need automatic adjustments based on ground conditions.

Innovation Solution

An electrical-driven vibratory device with programmable electronic systems and integrated motors for eccentric masses, allowing for adjustable amplitude and direction of vibrations, using a control unit to distribute power and control motor speeds for precise adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If hydraulic drive is used for rotating eccentric masses, then the vibratory device can be driven without swiveling connections, but the adjustment speed and precision are insufficient

Engineering Contradiction:

Improveadjustment speed and precisionVSAvoiddrive system performance

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces the hydraulic drive system with an electrical drive system. Motors are integrated directly with the eccentric masses, eliminating hydraulic canals and swiveling connections. This substitution enables rapid and precise adjustment of vibration parameters through electrical control, while maintaining drive reliability through direct mechanical coupling of the motors with the eccentric masses.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If multiple similar hydraulic arrangements are integrated to achieve adjustable vibrations, then the device becomes adjustable, but the adjustment rapidity and precision deteriorate

Engineering Contradiction:

Improvevibration adjustment capabilityVSAvoidadjustment rapidity

Core Design Contradiction:

Adaptability or versatilityVSSpeed

Solution Approach 1:

The patent substitutes electrical motors with hydraulic arrangements. Each eccentric mass has an integrated motor that can be independently controlled via electrical signals. This enables rapid adjustment of vibration amplitude and direction by controlling motor speeds and rotation directions, achieving both adaptability and speed through electronic control systems.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent implements dynamic control of the vibratory device by enabling independent speed and direction control of multiple eccentric masses. The control system can adjust the rotation speed and direction of each motor-driven eccentric mass dynamically, allowing rapid changes in vibration characteristics adapted to different ground conditions.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If mechanical arrangements are used to generate different vibration modes, then the device can produce circular and directed vibrations, but the mechanical complexity increases

Engineering Contradiction:

Improvevibration mode capabilityVSAvoidmechanical arrangement complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical arrangements with an electrical control system. By controlling the speed and direction of rotation of electrically-driven eccentric masses, the system can generate circular vibrations, directed vibrations, and other vibration modes without requiring complex mechanical linkages or mechanisms. The complexity is reduced to electrical control logic while maintaining full vibration mode capability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 fast and precise adjustments of vibration amplitude and direction, simplifying the system and improving compacting performance by eliminating the need for complex mechanical arrangements.

Implementation Method 1

The vibratory device comprises a shaft, a motor for rotating an eccentric mass around the shaft. The motor is integrated with the eccentric mass and is arranged around the shaft which is non-rotating.

Methodology Applied

Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS10265730B2Vibratory device for compacting machine

Publication Date: 2019.04.23 DYNAPAC COMPACTION EQUIP

AI summary

Vibratory device (1) for compacting machine comprising a shaft (3), at least one eccentric mass (4,5,6) rotatable arranged around the shaft (3) and at least one motor (8) arranged around the shaft (3). The motor (8) is arranged for rotating drive of at least one of the eccentric masses (4,5,6) around the shaft (3). The motor (8) comprise a winding unit (9) connected to, the shaft (3) and a rotor (10) rotatable arranged around the shaft (3) and connected to at least one of the eccentric masses (4,5,6). The rotor (10) is arranged to be actuated by at least one magnetic field to rotation around the shaft (3) and the winding unit (9) is arranged to generate the magnetic fields which actuates the rotor (10) to rotation.