Bearing Testing Device for Closed-Loop Misalignment Control
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Solution Overview
Problem
Current misaligned bearing performance tests lack accurate control and measurement of misalignment, especially in the position adjustment and stress, making it difficult to verify bearing performance effectively in a misaligned state.
Innovation Solution
A bearing testing device with a main shaft, adjusting plates that rotate around perpendicular axes, and an actuating assembly to adjust these plates, along with distance sensors and oil cylinders to control and measure misalignment, enabling closed-loop control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional bearing testing methods are used, then the testing process is simple, but the misalignment control and measurement precision is insufficient
Solution Approach 1:
The testing device is divided into multiple independent modules: adjusting plates for individual bearing alignment, actuating assemblies for precise position control, and distance sensors for measurement. Each module operates independently to control and measure misalignment of specific bearings, enabling precise measurement without requiring a completely complex integrated system.
Solution Approach 2:
Distance sensors are installed to measure the actual misalignment of bearings in real-time, and this measurement data is fed back to the control system. The control system uses this feedback information to adjust the actuating assemblies, which in turn modify the adjusting plates to achieve the desired misalignment state, forming a closed-loop control system that improves measurement precision.
2Manufacturing precision
If manual position adjustment is used, then the device complexity is low, but the misalignment control precision and closed-loop control capability are insufficient
Solution Approach 1:
Manual mechanical adjustment is replaced with actuating assemblies that use electromagnetic or hydraulic actuators to control the position of adjusting plates. These actuating assemblies receive electronic control signals and automatically adjust the bearing misalignment to precise positions, eliminating the need for manual operation while achieving high control precision.
Solution Approach 2:
The adjusting plates are designed to be dynamically adjustable during the testing process, not fixed in position. The actuating assemblies can modify the misalignment angle in real-time based on control signals, allowing the system to adapt to different testing requirements and maintain precise control throughout the test operation.
3Productivity
If multiple bearings are tested simultaneously, then the productivity is improved, but the individual misalignment control becomes more difficult
Solution Approach 1:
Each bearing to be tested is equipped with its own adjusting plate and actuating assembly, allowing independent control of misalignment for each bearing. This segmentation enables multiple bearings to be tested simultaneously while maintaining individual control over the position and misalignment of each bearing, resolving the conflict between productivity and ease of operation.
Data Source
AI summary
A bearing testing device and a method for testing bearing performance in a bearing misaligned state by the bearing testing device is disclosed. The bearing testing device tests the performance of a first bearing and/or a second bearing in a misaligned state. The testing device includes a main shaft for installing the first and second bearings to be tested. A first adjusting plate rotates around a first axis perpendicular to the main shaft for a certain angle, and directly or indirectly holds the outer ring of the first bearing. A second adjusting plate rotates around a second axis perpendicular to the main shaft for a certain angle, and directly or indirectly holds the outer ring of the second bearing. An actuating assembly adjusts the angle of the first adjusting plate relative to the first axis and the angle of the second adjusting plate relative to the second axis.


