Elevator Suspension Mechanism for Landing Stress Absorption
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Solution Overview
Problem
Stress developed on elevator cabins during landing due to retardation caused by mechanical components can lead to structural damages, mechanical vibrations, and increased maintenance costs.
Innovation Solution
A suspension arrangement that includes a landing lever, a landing bar, a guide pin, and a spring, which compresses to absorb stress acting on the elevator cabin during landing, thereby reducing structural damage and mechanical vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mechanical brakes and friction pads are used to lock the elevator cabin at the floor level, then the elevator cabin can be stopped at the desired location, but stress develops on the elevator cabin causing structural damages and mechanical vibrations
Solution Approach 1:
A suspension arrangement acts as an intermediary between the elevator cabin and the mechanical braking system. This arrangement includes a landing lever, landing bar, guide pin, and spring that collectively absorb the impact stress during landing, preventing direct transmission of forces to the cabin structure while still enabling effective stopping at the floor level
2Ease of operation
If mechanical brakes and friction pads are used to lock the elevator cabin at the floor level, then the elevator cabin can be stopped at the desired location, but mechanical vibrations are generated affecting passenger wellbeing
Solution Approach 1:
The suspension arrangement is designed to cushion the impact before it reaches the elevator cabin. The spring component absorbs and dampens the mechanical vibrations generated during braking, preventing these vibrations from being transmitted to the cabin and affecting passenger comfort and wellbeing
3Ease of operation
If mechanical brakes and friction pads are used to lock the elevator cabin at the floor level, then the elevator cabin can be stopped at the desired location, but wear and tear on mechanical components increases maintenance frequency and cost
Solution Approach 1:
The suspension arrangement serves as a protective intermediary that reduces the mechanical stress and wear on the braking components. By absorbing impact forces through the landing lever, landing bar, guide pin, and spring mechanism, the system extends the lifespan of mechanical components and reduces maintenance requirements
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 suspension arrangement effectively absorbs stress during elevator landing, preventing structural damage, reducing mechanical vibrations for passenger comfort, and lowering maintenance costs by minimizing wear on mechanical components.
Implementation Method 1
The guide pin is adapted to compress a spring encircling the guide pin corresponding to the motion of the landing bar, thereby absorbing the stress acting on the elevator cabin during the landing
Implementation Method 2
The suspension arrangement effectively absorbs stress during elevator landing, preventing structural damage, reducing mechanical vibrations for passenger comfort
Data Source
AI summary
A suspension arrangement 10 to absorb stress acting on an elevator cabin 20 during landing is provided. The suspension arrangement includes the elevator cabin to move bidirectionally through an external cylinder30 to transport passengers between levels of a structure. The suspension arrangement includes a landing lever 40 to project towards the external cylinder when the elevator cabin reaches a floor level. The suspension arrangement includes a landing bar 50 to slide downwards over the pillar 60 corresponding to a motion of the landing lever upon establishing a contact with the landing lever projected towards the external cylinder. The suspension arrangement includes a guide pin 70 meshed with the landing bar and housed in a base ring 80 associated with the external cylinder. The guide pin is to compress a spring 90 encircling the guide pin corresponding to the motion of the landing bar.