Counterweight Governor Assembly Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional counterweight governor assemblies require additional space in the hoistway due to the need for a separate control room or machine room, which is not feasible for elevators with occupied space below the counterweight frame, necessitating a compact solution to prevent over-speed issues.
Innovation Solution
The counterweight governor assembly is integrated within the counterweight frame, utilizing a swing arm and a single cable to activate a braking assembly, eliminating the need for additional space and allowing the assembly to fit within the existing hoistway dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional counterweight governor assembly is mounted in a control room or machine room above the hoistway, then the governor can detect over-speed conditions and activate braking, but additional space is required in the hoistway dimensions due to the need for separate governor, tail weight, and safety components
Solution Approach 1:
The governor assembly is merged with the counterweight frame, combining the governor mechanism, braking assembly, and counterweight function into a single integrated unit. This eliminates the need for separate governor and tail weight components, thereby reducing the space required in the hoistway while maintaining over-speed protection capability
Solution Approach 2:
The counterweight frame is designed to serve multiple functions: it provides the counterweight function for balance, houses the governor mechanism for over-speed detection, and incorporates the braking assembly for safety intervention. This multi-functionality allows the system to maintain safety features while minimizing space requirements
2Reliability
If a counterweight braking device is added to protect occupied space below the counterweight frame, then safety is improved, but additional space must be added to the hoistway dimensions to accommodate the governor, tail weight, and safety components
Solution Approach 1:
The braking device is merged into the counterweight frame assembly, combining the safety function with the counterweight structure. This integration eliminates the need for separate safety components that would require additional hoistway space, while still providing protection for occupied spaces below the counterweight frame
Solution Approach 2:
The braking assembly and governor mechanism are nested within the counterweight frame structure. The governor mechanism is positioned inside the counterweight frame, and the braking components are integrated into the same structure, creating a compact nested arrangement that provides safety functionality without increasing hoistway dimensions
Data Source
AI summary
Embodiments herein are directed to an elevator counterweight governor assembly for an elevator assembly. The elevator counterweight governor assembly includes a swing arm, a first pulley assembly, a second pulley assembly, a third pulley assembly, and a braking assembly. The swing arm is pivotally coupled to the at least one inner beam at one end. The swing arm is configured to pivot between a disengaged position and an engaged position. The braking assembly is configured to move between an unactivated state where the braking assembly is free from the fixed member and an activated state where the braking assembly engages with the fixed member to inhibit movement of the counterweight frame. When the swing arm is in the disengaged position, the braking assembly is in the unactivated state and when the swing arm is in the engaged position, the braking assembly is in the activated state.