Ball-bearing-supported attachment point
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing attachment points in lifting technology face challenges with limited rotatability under heavy loads, excessive wear leading to short service life, and complex assembly processes, which complicate installation and increase costs.
Innovation Solution
The attachment point features a pair of rolling bearings with an outer race attached to the connecting element, allowing for optimized material selection and machining for distinct requirements, along with design features like undercuts and bushings for positive-fit support and assembly, and a braking member for stability, enabling high mobility and load-bearing capacity while simplifying installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rolling bearings are used to improve rotatability, then mobility is improved, but wear increases and service life decreases
Solution Approach 1:
The patent changes the material parameters of the rolling bearings by attaching an outer race made of a different material to the connecting element. This material parameter change reduces wear while maintaining the rolling motion function, thereby extending service life without sacrificing rotatability.
Solution Approach 2:
The patent employs composite construction by combining the rolling bearing components with an outer race attached to the connecting element. This composite structure allows selection of materials optimized for both rotational motion and wear resistance, resolving the contradiction between mobility and service life.
2Strength
If traditional attachment point design is used, then load-bearing capacity is sufficient, but assembly complexity increases and installation time increases
Solution Approach 1:
The patent merges the outer race attachment and bearing assembly into an integrated structure where the outer race is directly attached to the connecting element. This merging reduces the number of separate components and assembly steps while maintaining load-bearing capacity through the robust integrated design.
3Ease of operation
If materials are optimized for bearing function, then rotatability is improved, but wear resistance decreases
Solution Approach 1:
The patent applies local quality by making the outer race (the part in contact with the connecting element) from a material specifically optimized for wear resistance, while the rest of the rolling bearing components can be optimized for rotational motion. This localized material optimization allows each component to have properties suited to its specific function.
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 configuration enhances service life, reduces wear, and facilitates quick and easy mounting, providing high load-bearing capacity and mobility while preventing undesirable rotation, thus addressing the limitations of prior art attachment points.
Implementation Method 1
at least one pair of rolling bearings between the seat and the connecting element, wherein the connecting element is rotatable relative to the seat
Implementation Method 2
The use of material respectively adapted for the intended application of the individual components clearly reduces wear and increases the service life
Data Source
AI summary
The invention relates to an attachment point (1) comprising a connecting element (3) which comprises a section (5) for connecting an attachment device, a seat (9) for a fastening device (11) and at least one pair of rolling bearings (23) between the seat (9) and the connecting element (9), wherein the connecting element (3) is rotatable relative to the seat (9) and wherein the rolling bearings (25, 27) of the pair of rolling bearings each comprise at least one rolling element (29). In order to provide an attachment point that exhibits little wear, is easily rotated also when lifting heavy loads and is easy to install, it is according to the invention provided that the rolling bearings (25, 27) of the pair of rolling bearings (23) comprise an outer race (39, 41) attached to the connecting element (3).