Balancing Machine Support Switching for Precise Imbalance Measurement
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Solution Overview
Problem
Existing balancing machines face challenges with complex construction, sensitivity to external parameters, and limited precision, particularly in detecting vibrations on rotating devices of varying weights and sizes, requiring specific calibration and longer measurement times.
Innovation Solution
A measuring system for balancing machines that can switch automatically between oscillating, rigid, and semi-rigid modes, using a movable support connected to a fixed support via a compliant connector, with integrated electrodynamic and piezoelectric transducers to detect vibrations, and an obstruction device to change detection modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If oscillating support systems are used, then measurement precision is improved, but device complexity increases and specific calibration is required for each rotating device
Solution Approach 1:
The patent creates a universal support system that can function in multiple modes (oscillating and rigid) without requiring separate calibration for different rotating devices. The movable support (3) can operate in oscillating mode for high-precision measurements or be locked to the fixed support (2) for rigid mode operation, eliminating the need for device-specific calibration while maintaining measurement accuracy across different weights and sizes.
Solution Approach 2:
The support system transitions from a static configuration to a dynamic one where the movable support (3) can be positioned in different states. By allowing the movable support to either oscillate freely or be locked rigidly to the fixed support (2), the system adapts its stiffness characteristics based on measurement requirements, resolving the contradiction between precision and complexity.
2Device complexity
If rigid or semi-rigid support systems are used, then device complexity is reduced, but measurement precision decreases and measurement time increases
Solution Approach 1:
The system dynamically adjusts its support characteristics by allowing the movable support (3) to transition between locked and free states. When high precision is needed, the movable support oscillates freely; when simplicity is prioritized, it locks to the fixed support (2). This dynamic adaptability resolves the contradiction between structural simplicity and measurement precision.
3Device complexity
If rigid support systems are used, then device complexity is reduced, but measurement time increases for high precision measurements
Solution Approach 1:
The movable support (3) can be quickly locked to the fixed support (2) for rigid mode operation or released for oscillating mode operation. This dynamic switching capability allows the system to select the appropriate measurement mode based on time constraints, resolving the contradiction between structural simplicity and measurement speed.
4Device complexity
If a single mode support system is used, then device complexity is reduced, but adaptability to different rotating devices decreases
Solution Approach 1:
The patent designs a universal support system where the movable support (3) can lock to the fixed support (2) or oscillate independently, creating a multi-functional system that adapts to different rotating device weights and sizes without requiring separate calibration or configuration. This resolves the contradiction between system simplicity and adaptability.
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 precise vibration detection on rotating devices of any weight and size, with mode selection allowing efficient balancing without system changes, and supports both automatic and manual mode switching.
Implementation Method 1
at least one electrodynamic detector (40) operatively connected to the movable support (3) by means of a connecting rod (8) connected to a mobile coil (41) in such a way as to be able to detect signals proportional to the vibration speed of the rotating shaft (10a)
Implementation Method 2
a piezoelectric transducer (42) arranged between the fixed support (2) and the support frame (3). The piezoelectric transducer (42) is configured to detect a signal proportional to the force exerted by the support frame on the transducer
Data Source
Figure 1~2
Figure 3~4
AI summary
It is provided a rotation imbalance system (1) for balancing machine of a piece in rotating machining (10), wherein the piece in machining (10) defines a rotation and a vibration (V) determined by imbalances in at least one plane (1a) during rotation, and wherein the system (1) comprises a fixed support (2) adapted to support at least the system (1), a movable support (3) connected to the fixed support (2), configured to allow the housing of at least part of the piece (10) is configured to move relative to the fixed support (2) along the plane (1a) in proportion to the vibration (V), detection means (4) integral with the fixed support (2), operationally connected to the movable support (3) and able to detect the vibration (V), blocking means (5) configured to rigidly constrain, on command, the movable support (3) and the fixed support (2) in such a way as to define at least a first detection mode in which the supports (2, 3) are not constrained by the blocking means (5) and the detection means (4) detect a displacement of the movable support (3) determined by the vibration (V), and a second detection mode in which the supports (2, 3) are integrally constrained by the blocking means (5) and the detection means (4) detect a deformation of the movable support (3) or a stress on the movable support (3) caused by the vibration (V).