Elevator Sheave Liner Angle Structure for Self-Locking Grip
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Solution Overview
Problem
Elevator sheave liners in prior art require improvement in structure, performance, installation, replacement, and maintenance, as well as manufacturing costs.
Innovation Solution
An elevator sheave liner with specific angle configurations and structural designs to prevent slipping, loosening, or falling off, featuring self-locking and anti-slip functions, easy processing, and reduced manufacturing and installation times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the elevator sheave liner uses a conventional structure without specific angle configuration, then the structure is simple, but the liner will slip, loosen, or fall off during operation
Solution Approach 1:
The patent applies parameter changes by optimizing the angle parameters of the liner structure. Specifically, the first angle between the first section and the longitudinal centerline is set to be not greater than arctan(μ1), where μ1 is the coefficient of friction between the liner and the groove. This parameter optimization ensures the liner remains stationary without slipping or falling off, achieving reliable anti-slip performance through mathematical parameter control rather than complex structural design.
2Ease of operation
If the elevator sheave liner uses a conventional design, then manufacturing is straightforward, but installation and replacement require significant time and effort
Solution Approach 1:
The patent applies segmentation by dividing the liner into distinct functional sections: a first section with a specific angle for anti-slip functionality, a second section for tension member engagement, and a third section for additional stabilization. This segmentation allows each section to perform its specific function efficiently, facilitating easier installation and replacement while maintaining operational reliability.
3Duration of action of stationary object
If the elevator sheave liner uses a conventional structure, then manufacturing costs are lower, but wear and friction loss increase during operation
Solution Approach 1:
The patent applies local quality by providing different sections of the liner with different functional characteristics. The first section has a specific angle configuration optimized for reducing friction with the groove, the second section is optimized for engagement with the tension member, and the third section provides additional stabilization. This localized optimization of each section's properties reduces overall wear and friction loss while extending service life.
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
Enhances safety performance, reduces wear and friction loss, and lowers overall costs by ensuring stable operation and easy maintenance.
Implementation Method 1
a first angle is formed between the first section and a longitudinal centerline of the elevator sheave liner and the first angle is set to be not greater than arctan (μ1), wherein μ1 is a coefficient of friction between the elevator sheave liner and the groove
Data Source
Figure 1
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AI summary
An elevator sheave liner, an elevator sheave assembly and an elevator system are disclosed. The elevator sheave liner is mounted in a groove of the elevator sheave and has a first end and a second end opposite to each other, the first end is provided with an engagement portion for engagement with an elevator tension member, and the elevator sheave liner comprises a first section provided on at least one side of the elevator sheave liner and abutting against a surface of the groove after the elevator sheave liner is mounted in place, wherein a first angle is formed between the first section and a longitudinal centerline of the elevator sheave liner and the first angle is set to be not greater than arctan (µ1), wherein µ1 is a coefficient of friction between the elevator sheave liner and the groove. Application of the solutions of the present disclosure can effectively prevent the elevator sheave liner from sliding or falling off from the elevator sheave, thereby improving the safety performance of the elevator system.