Cooling Block Bearing Structure for Stable Table Rotation
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Solution Overview
Problem
Existing table rotation devices face issues with thermal expansion and positional deviation of the fixed ring, leading to abnormal noise and vibration, which affect the accuracy and stability of the rotation process.
Innovation Solution
A table rotation device is designed with a bearing assembly that includes a fixed ring, a movable ring, and rolling elements, along with a cooling block that contacts both the fixed ring and support block, providing a cooling passage to dissipate heat and inhibit thermal expansion, thereby maintaining the positional stability of the components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a bearing assembly with rolling elements is used to enable rotation, then the table can rotate smoothly, but thermal expansion and positional deviation occur leading to abnormal noise and vibration
Solution Approach 1:
A cooling block is introduced as an intermediary component between the fixed ring and support block. This cooling block contains a cooling passage through which cooling fluid flows, acting as a thermal mediator to remove heat from the bearing assembly, thereby preventing thermal expansion and maintaining positional stability while allowing smooth rotation to continue
Solution Approach 2:
The temperature parameter of the bearing assembly is actively controlled by introducing a cooling system. By changing the thermal state of the fixed ring and support block through the cooling passage, thermal expansion is prevented, and positional stability is maintained during rotation operation
2Reliability
If cooling passages are added to suppress thermal expansion, then positional stability is maintained, but device complexity increases
Solution Approach 1:
The cooling block merges multiple functions into a single component: it provides structural support by connecting the fixed ring and support block, while simultaneously housing the cooling passage for thermal management. This integration reduces the need for separate cooling components and minimizes overall structural complexity
Solution Approach 2:
The cooling block serves multiple purposes: it acts as a structural connector in the bearing assembly, a heat sink for thermal management, and a conduit for cooling fluid flow. This multi-functionality eliminates the need for additional dedicated cooling components, thereby reducing device complexity while maintaining positional stability
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
The solution effectively suppresses thermal expansion and positional deviation, reducing abnormal noise and vibration, and ensuring high accuracy and stability in the rotation of the table, enhancing the overall performance of the device.
Implementation Method 1
the cooling block is in contact with both the fixed ring and the support block, the cooling block providing a cooling passage
Data Source
AI summary
A table rotation device includes a bearing assembly, a table support member, a support block, and a cooling block. The bearing assembly includes a fixed ring, a movable ring, and rolling elements provided between the fixed ring and the movable. The movable ring is rotatable about the rotation axis. The table support member is connected to the movable ring so as to fix a position of the table support member relative to a position of the movable ring. The support block is connected to the fixed ring so as to fix a position of the support block relative to a position of the fixed ring. The cooling block is connected to at least one of the fixed ring and the support block such that the cooling block is in contact with both the fixed ring and the support block. The cooling block provides a cooling passage.