Bearing Rolling Element Packing via Elastic Window Formation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for packing rolling elements in bearings are limited by a restricted circumferential angle, leading to potential damage and premature failure, especially in heavy-duty applications where rolling elements are closely distributed, and often require forced assembly that can cause plastic deformation and scratching.
Innovation Solution
A method and device that use a bearing ring fixing component and a bearing ring compression component to apply a compressive load, creating a window for packing rolling elements by dividing the bearing into a compression zone and a warping zone, allowing for a larger circumferential angle and reducing the risk of damage through controlled deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the Prior Art assembly method is used to pack rolling elements, then the assembly process is simple, but the loading angle is restricted to not exceed 180-200 degrees, making it impossible to meet the needs of heavy-duty bearings with closely distributed rolling elements
Solution Approach 1:
The bearing circumferential range is divided into a compression zone (within the circumferential angle) and a warping zone (outside the circumferential angle). The compression zone undergoes radial compression to reduce the radial gap, while the warping zone experiences elastic deformation to create a packing window with larger radial gap, allowing rolling elements to be packed across a broader circumferential angle range
Solution Approach 2:
The method changes the physical state of the bearing rings by applying controlled radial compression to the compression zone, inducing elastic deformation in the warping zone. This parameter change (from rigid to elastically deformed state) enables the creation of a packing window that expands the usable circumferential angle beyond the traditional 180-200 degree limit
2Adaptability or versatility
If forced assembly is used to pack rolling elements by expanding the gap between inner and outer rings, then the loading angle restriction is overcome, but plastic deformation of the rings occurs, altering material properties and stress distribution, and causing scratching to the surface of rolling components
Solution Approach 1:
The method applies preliminary controlled compression to the compression zone before packing, which induces elastic deformation in the warping zone to create the packing window. This preliminary action prevents the need for forced assembly and subsequent plastic deformation, thereby protecting the bearing rings and rolling element surfaces from damage
Solution Approach 2:
The method converts the potentially harmful effect of ring rigidity (which prevents gap expansion) into a beneficial elastic deformation response. By applying controlled compression that induces elastic rather than plastic deformation, the ring's rigidity becomes a mechanism for creating the packing window without causing permanent damage or surface scratching
3Ease of manufacture
If forced assembly is used to pack rolling elements, then the packing can be completed, but the inner and outer rings undergo plastic deformation, causing premature bearing failure
Solution Approach 1:
The method transitions from a static forced assembly approach to a dynamic controlled compression process. By applying compression forces that induce elastic deformation during the packing process, the system dynamically adjusts the ring geometry to accommodate rolling elements without permanent deformation, ensuring both complete packing and dimensional accuracy
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
This approach significantly reduces the risk of damage to bearings during assembly, enabling the use of a broader range of bearings and improving the reliability of the packing process by creating an optimal window for rolling elements, thus enhancing the durability and performance of the bearings.
Implementation Method 1
inserting two first packing supports between a raceway of the first bearing ring and a raceway of a second bearing ring at a predetermined circumferential angle, the two first packing supports dividing the bearing in a circumferential range into a compression zone lying within the range of the circumferential angle and a warping zone lying outside the range of the circumferential angle; and using a bearing ring compression component to apply a compressive load to a circumferential portion of the second bearing ring that lies in the compression zone
Data Source
AI summary
A method for packing rolling elements in a bearing providing using a bearing ring fixing component to fix a first bearing ring, preventing it from shifting when subjected to radial compression; inserting two first packing supports between a first bearing ring raceway and a second bearing ring raceway at a predetermined circumferential angle, the two first packing supports dividing the bearing in a circumferential range into a compression zone lying and a warping zone lying outside the range of the circumferential angle; and using a bearing ring compression component to apply a compressive load to a circumferential portion of the second bearing ring. The compressive load directed towards the first bearing ring in a radial direction, to force a radial gap between the first bearing ring raceway and second bearing ring raceway to decrease, such that a window suitable for packing the rolling elements is formed in the warping zone.