Vibration Generator with Adjustable Phase Shift for Directional Force Control
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Solution Overview
Problem
Existing vibration generators are limited in their ability to apply directed force both in the direction of ramming and pulling, requiring separate systems or significant static forces for pulling operations.
Innovation Solution
A vibration generator with adjustable phase shift between unbalance groups, connected via an oscillating motor, allows for directional force application by varying the speed ratio of shaft groups and static moments, enabling efficient force direction change without conversion measures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a vibration generator is designed with fixed unbalance groups rotating in opposite directions, then a directed force effect in the propulsion direction is achieved, but the system cannot be used for pulling operations or requires superimposing considerable static forces
Solution Approach 1:
The patent applies the dynamics principle by making the unbalance groups adjustable rather than fixed. The phase position of the unbalance groups can be dynamically changed to adapt to different operational requirements. This allows the same vibration generator to perform both ramming and pulling operations by adjusting the phase relationship between unbalance groups, eliminating the need for separate systems for different processes.
Solution Approach 2:
The patent implements parameter changes by varying the phase position of unbalance groups. By changing the phase angle between the unbalance groups, the direction of the resultant force can be controlled. This parameter adjustment enables the vibration generator to switch between propulsion direction (for ramming) and pulling direction without requiring structural modifications or additional static forces.
2Use of energy by moving object
If multiple unbalance groups are coupled at different speeds with fixed phase positions, then a directed force effect is achieved, but energy efficiency is reduced when performing pulling operations
Solution Approach 1:
The patent makes the phase position of unbalance groups dynamically adjustable, allowing optimal energy utilization for different operational modes. During ramming operations, the phase positions are set to maximize propulsion force, while during pulling operations, the phase positions are adjusted to maximize extraction force. This dynamic adaptation ensures high energy efficiency regardless of the specific task being performed.
Solution Approach 2:
The patent creates a universal vibration generator that can perform both ramming and pulling operations efficiently by adjusting the phase relationship between unbalance groups. The same device with adjustable phase positions replaces the need for separate specialized systems, achieving multi-functionality while maintaining high energy efficiency in both operational modes through optimized phase configuration.
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 efficient energy use and reduced vibration load by maximizing force in the propulsion direction during ramming, while allowing for effective pulling operations with minimal energy input.
Implementation Method 1
means are provided to change the phase position of at least two unbalance groups in relation to one another
Implementation Method 2
The vibration generators are linear vibration generators whose centrifugal force is generated by rotating imbalances
Implementation Method 3
the at least two unbalance groups are connected to the oscillating motor via gear wheels
Data Source
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AI summary
The vibrator has shaft groups (1, 2) on which unbalanced mass groups (111, 121, 211, 221) are arranged. The unbalanced mass groups connected with a drive such that the mass groups are rotationally displaced to each other with different speed for obtaining directed feed. An oscillating motor e.g. rotor oscillating motor, adjusts an effective direction of the vibrator, and changes phase displacement of the mass groups to each other. The mass groups are connected with the oscillating motor by gear wheels (112, 122, 212, 222).