Continuous Casting Bearing Block With Integrated Outer Raceway Cooling
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Solution Overview
Problem
Continuous casting machines face challenges with bearing failure due to high temperatures and limited cooling effectiveness, which compromises load-bearing capacity and maintenance frequency.
Innovation Solution
A bearing block unit with a complete and continuous inner ring and partially formed outer ring raceway, allowing for increased radial size of the water cooling channel and rolling bodies, enhancing cooling and load-bearing capacity without compromising structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the radial size of the water cooling channel is increased to improve cooling effect, then the cooling efficiency is improved, but the load-bearing capacity of the bearing drops due to compression of the bearing radial size
Solution Approach 1:
The patent merges the bearing outer ring function with the bearing block structure. The outer ring raceway is formed by processing the inner surface of the bearing block, eliminating the need for a separate outer ring component. This integration allows the bearing block to simultaneously provide structural support, cooling channels, and bearing raceway functionality, resolving the contradiction between cooling channel size and bearing load capacity
Solution Approach 2:
The bearing block is designed to perform multiple functions: it provides structural support, houses the cooling channels for temperature control, and forms the outer ring raceway for the bearing. This multi-functional design allows the cooling channel radial size to be increased without compromising bearing performance, as the bearing block structure itself serves as the bearing outer ring
2Temperature
If the radial size of the bearing block is increased to accommodate larger cooling channels, then the cooling effect is improved, but the bearing block may touch the steel billet and be damaged
Solution Approach 1:
By integrating the outer ring raceway formation into the bearing block structure itself, the design eliminates the need for additional clearance between the bearing block and steel billet. The bearing block inner surface directly forms the raceway, allowing maximum utilization of the available radial space for cooling channels without increasing the overall bearing block outer dimensions
Solution Approach 2:
The patent optimizes the three-dimensional arrangement of cooling channels within the bearing block, utilizing the internal volume efficiently. The cooling channels are configured to maximize heat dissipation while maintaining the external dimensions required to prevent contact with the steel billet, effectively using spatial optimization to resolve the contradiction
3Strength
If the radial size of the rolling bodies is increased to improve load-bearing capacity, then the load-bearing capacity is improved, but the space for water cooling channel is reduced
Solution Approach 1:
The integration of the outer ring raceway with the bearing block structure creates additional radial space that can be allocated to either larger rolling bodies or expanded cooling channels, or both. This merger eliminates the space consumption of a separate outer ring, allowing simultaneous optimization of load-bearing capacity and cooling capability
Solution Approach 2:
The patent enables flexible adjustment of bearing parameters (rolling body size, cooling channel size) within the available radial space. By changing the distribution of radial dimensions between bearing components and cooling channels, the design can optimize for either load-bearing capacity or cooling efficiency depending on specific operational requirements
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 improves cooling efficiency and load-bearing capacity, reducing maintenance frequency and operating costs by adapting to harsh continuous casting conditions.
Implementation Method 1
A water cooling channel 23 is provided inside the top end, as shown in FIG. 2, with the aim of lowering the temperature inside the bearing block by means of water circulation
Data Source
AI summary
A bearing block unit for supporting a continuous casting roll, including a bearing block and a roller bearing disposed inside the bearing block. The bearing provides an inner ring raceway, an outer ring raceway, and at least one row of rolling bodies disposed between the inner and outer ring raceways. The inner ring raceway is formed by a complete and continuous independent inner ring. The inner ring is fitted on a roll shaft of the continuous casting roll during installation, for the purpose of supporting the continuous casting roll. The outer ring raceway is at least partially formed by processing of an inner surface of an inner hole of the bearing block. The present invention also relates to a continuous casting roll line and a continuous casting machine using the bearing block unit.