Elevator Hoisting Machine Fixing Arrangement Using Guide Rail Positioning
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Solution Overview
Problem
The existing methods for installing elevator hoisting machines are time-consuming and prone to errors, requiring extensive measuring and plumbing, which can lead to operational disruptions and additional costs due to potential damage and noise issues.
Innovation Solution
An apparatus that uses guide rails and machine station brackets to automatically determine the positions of the elevator machine and its components, eliminating the need for separate measurements and allowing for rapid, precise installation without fixing to the hoistway floor, suitable for both new and old elevator systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional separate installation methods are used for elevator components, then each component can be installed independently, but the installation process becomes extremely time-consuming and error-prone due to extensive measuring and plumbing requirements
Solution Approach 1:
The patent combines multiple installation functions into a single integrated machine station assembly that includes pre-positioned guide rails, machine components, and alignment features. This merging eliminates the need for separate measuring and plumbing operations for each component, allowing the entire assembly to be installed as one unit and dramatically reducing installation time while maintaining precision.
Solution Approach 2:
The machine station assembly is pre-manufactured with all components precisely positioned and fixed relative to each other before delivery to the installation site. Guide rails, machine components, and alignment features are pre-assembled with accurate tolerances, eliminating the need for time-consuming on-site measuring and adjustment work.
2Measurement precision
If extensive measuring and plumbing is performed during installation, then component positions can be determined, but measuring errors occur that result in improper elevator installation and functional problems
Solution Approach 1:
The patent uses a standardized machine station assembly that serves as a pre-engineered template with all dimensional relationships and positions precisely defined during manufacturing. This copying of the ideal configuration from the manufacturing stage to the installation stage eliminates on-site measuring errors and ensures consistent, reliable installation results.
Solution Approach 2:
All positioning and alignment measurements are performed during the pre-assembly manufacturing process rather than during installation. The machine station is fabricated with precise tolerances and pre-positioned features, transferring the measurement work to the controlled manufacturing environment where accuracy is ensured, thereby eliminating field measuring errors.
3Strength
If traditional installation methods are used requiring floor fixings, then the hoisting machine can be secured, but the solution cannot be used in old elevator hoistways where floor resilience is uncertain
Solution Approach 1:
The machine station assembly is designed with multiple attachment interface options that can accommodate different structural conditions. The assembly includes various mounting configurations that can be adapted to both new constructions with reliable floors and old hoistways with uncertain floor resilience, making the solution universally applicable across different installation scenarios.
Data Source
AI summary
An apparatus for fixing a hoisting machine in an elevator includes a machine station configured to arrange a traction sheave of the elevator, a motor and a plurality of diverting pulleys for one or more traction members into position relative to each other. A fixing arrangement for fixing a hoisting machine in an elevator includes a machine station and a plurality of brackets. The plurality of brackets fix the machine station into a final position, which is determined by a position of guide rails in the elevator hoistway.