Elevator Speed Governor Releaser Arc-Shaped Pin
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Solution Overview
Problem
Existing speed governing systems for elevators are prone to misoperation and high operational noise due to sensitive speed detection and high frictional coefficients, and have complex structures that increase manufacturing costs.
Innovation Solution
A speed governing system with a releaser that uses positioning pins with arc-shaped outlines and an elastic component to securely engage and disengage the releasing component, reducing friction and noise, and featuring a simplified housing structure for easy manufacturing and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional positioning structures are used in the releaser, then the structure is simple, but the frictional coefficient is high causing misoperation and noise
Solution Approach 1:
The positioning pin is designed with an arc-shaped cross-section instead of a traditional sharp-angled or cylindrical shape. This curved geometry allows the positioning pin to roll along the groove surface during engagement and disengagement, significantly reducing frictional resistance and operational noise while preventing misoperation caused by high friction.
2Reliability
If complex speed governing systems are used, then safety can be ensured, but the structure becomes complex increasing manufacturing costs
Solution Approach 1:
The speed governing system is divided into independent functional modules: the speed governor unit and the releaser unit. The releaser is further segmented into the housing, positioning pin, and releasing component. This modular segmentation allows each part to be optimized independently, simplifying manufacturing while maintaining overall system safety through coordinated function of the segments.
Solution Approach 2:
The releaser incorporates an elastic component that provides self-latching functionality through the interaction between the positioning pin and groove. The elastic force automatically engages the positioning pin with the groove to lock the releasing component, and automatically releases it when the speed governor triggers disengagement. This self-service mechanism eliminates the need for additional actuating mechanisms, simplifying the overall structure while ensuring reliable safety function.
3Ease of manufacture
If traditional releasing mechanisms are used, then the structure is established, but maintenance difficulty increases
Solution Approach 1:
The releaser is designed as a modular assembly with distinct components (housing, positioning pin, releasing component, elastic component) that can be independently accessed and replaced. The positioning pin with its arc-shaped section is a simple, standardized part that can be easily manufactured and replaced during maintenance without requiring complex tools or procedures.
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 system effectively reduces friction and noise, enhancing stability and reliability, while simplifying manufacturing and maintenance, thus improving safety and user experience.
Implementation Method 1
the elastic component is configured to provide an elastic force to cause the section of the at least one positioning pin to be accommodated in the groove to fix the releasing component relative to the housing
Data Source
AI summary
A speed governing system, a releaser, an elevator speed governing system, and an elevator. The speed governing system comprises a speed governor for detecting an overspeed condition of a motion device, and a releaser connected to the speed governor. The releaser comprises: a housing; at least one positioning pin having a section that is disposed in the housing and at least partially constructed to have an arc-shaped outline; and a releasing component passing through the housing and provided with a groove on its portion located in the housing, wherein the groove is constructed to be adaptable to the arc-shaped outline, for accommodating the section to fix the releasing component relative to the housing, and be separated from the section when the speed governor detects the overspeed condition and moves the releasing component relative to the housing.