Lifting Column Load Weight Measurement and Overload Prevention
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Solution Overview
Problem
Existing lifting columns risk unsafe operation and potential accidents when lifting loads exceeding their maximum weight capacity, leading to injuries and equipment damage.
Innovation Solution
Incorporating weight measuring means and communication systems into the lifting column to measure and communicate the load weight to control means, preventing overload and ensuring safe operation through centralized control, with options for wireless communication and energy harvesting from the load itself.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If weight measuring means and communication means are added to the lifting column, then safety and overload prevention are improved, but device complexity increases
Solution Approach 1:
The weight measuring means measures the load weight before the lifting operation commences, and the control means prevents the drive from operating if the weight exceeds the maximum load. This preliminary check ensures safety before the actual lifting action begins.
Solution Approach 2:
The communication means transmits the measurement signal from the weight measuring means to the control means, creating a feedback loop that allows the control system to make real-time decisions based on the measured weight, thereby preventing overload operations.
2Measurement precision
If weight measuring means are attached to the carrying part, then overload detection capability is improved, but manufacturing complexity increases
Solution Approach 1:
The lifting column is divided into functional modules: the carrying part with attached weight measuring means, the drive mechanism, and the control means. This segmentation allows each component to be manufactured and tested independently, then assembled into the complete system.
Solution Approach 2:
The communication means acts as an intermediary that bridges the weight measuring means and the control means, transmitting measurement signals without requiring direct physical or complex electrical integration between the measuring and control components.
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 solution effectively prevents overload situations and ensures safe lifting operations by providing real-time weight feedback, reducing the risk of accidents and enabling safer handling of vehicles across various lifting column types.
Implementation Method 1
Weight measuring means attached to the carrying part for measuring the weight of the load
Implementation Method 2
the weight measuring means comprise a piezo-element for generating energy for the energy supply
Implementation Method 3
The generated energy can be stored in capacitor 52 that is used to transmit data to controller 30
Data Source
AI summary
Disclosed is a lifting column for lifting a load, such as a vehicle, which includes a frame with a movable carrier and a drive which acts on the carrier; control means for control of the drive; a carrying part attached to the carrier for carrying the load; weight measuring means attached to the carrying part for measuring the weight of the load; and communication means for communicating a measurement signal of the weight measuring means indicative of the weight of the load to the control means.