Elevator Counterweight Frame With Inverted Arch Beams
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Solution Overview
Problem
Conventional counterweight frames in elevator systems are narrow and high, limiting the utilization of width space in the elevator shaft and prone to bending deformation.
Innovation Solution
A counterweight frame design featuring inverted arch beams and load-bearing shafts that connect counterweight blocks, allowing for a wider frame configuration with improved stability and reduced height, utilizing the shaft space more efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the counterweight frame is designed to be narrow and high to prevent bending deformation, then the structural stability is improved, but the width space utilization of the elevator shaft deteriorates
Solution Approach 1:
The patent applies curved arch beams instead of straight beams to create a wider counterweight frame. The inverted arch shape (curved structure) provides inherent structural stability while enabling increased width, directly resolving the contradiction between stability and width utilization
Solution Approach 2:
The patent transitions from a traditional narrow vertical arrangement to a wider horizontal configuration by introducing inverted arch beams that span across the frame. This dimensional change allows the counterweight frame to utilize width space more effectively while maintaining stability through the arch structure
2Area of stationary object
If the counterweight frame width is increased to utilize shaft space, then the space utilization is improved, but the bending deformation resistance deteriorates
Solution Approach 1:
The inverted arch beams with curved geometry provide superior resistance to bending deformation compared to straight beams. The curved shape naturally distributes loads more effectively, allowing the frame to be wider without compromising bending resistance
Solution Approach 2:
The patent employs a composite structure combining inverted arch beams with vertical beams and counterweight blocks. This composite design creates a rigid framework that resists bending deformation while maintaining increased width for better space utilization
Data Source
AI summary
A counterweight for an elevator system and an elevator system. The elevator system includes an elevator car and a counterweight connected to each other through a rope; the counterweight includes a counterweight frame and a plurality of counterweight blocks mounted on the counterweight frame, the counterweight frame includes a first main surface and a second main surface opposite to each other, the counterweight blocks are arranged between the first main surface and the second main surface; a first inverted arch beam and a second inverted arch beam connected to the first main surface and the second main surface respectively; and a load-bearing shaft connected between the first inverted arch beam and the second inverted arch beam; the counterweight is connected to the rope through the load-bearing shaft.