Pneumatic Hoist Pressure Sensing for Accurate Operating History
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Solution Overview
Problem
Pneumatic hoists face challenges in accurately evaluating and storing operating states and parameters due to their open pneumatic fluid circuits, which are influenced by ambient conditions, making reliable assessment and information storage difficult.
Innovation Solution
A pneumatic hoist equipped with at least two pressure sensors at fluid inlets and one at the fluid outlet, coupled with a data processing unit and a load collective storage, to capture and calculate operating states and parameters accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pressure sensors and data processing units are added to pneumatic hoists, then measurement precision and information storage capability are improved, but device complexity increases
Solution Approach 1:
The data processing unit serves multiple functions: it processes pressure sensor signals, determines operating states, stores operating parameters in memory, and enables communication with external devices. This multi-functionality reduces the need for separate dedicated components for each function, thereby improving measurement precision while limiting the increase in device complexity.
2Reliability
If multiple pressure sensors are installed at fluid inlets and outlet, then operating parameter evaluation reliability is improved, but manufacturing cost increases
Solution Approach 1:
Pressure sensors are strategically positioned at specific locations (fluid inlets and outlet) where pressure measurements are most critical for determining operating states. This localized sensing approach ensures reliable operation parameter evaluation while minimizing the total number of sensors required, thereby controlling manufacturing costs.
3Loss of information
If operating parameters are stored in memory, then information availability about past operations is improved, but device complexity and storage requirements increase
Solution Approach 1:
The data processing unit continuously captures and stores operating parameters in memory during hoist operation, preparing information in advance for later retrieval and analysis. This preliminary data collection ensures that operating history information is readily available when needed, while the memory system is integrated into the existing control architecture to minimize additional complexity.
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
Enables precise determination and storage of operating states and parameters, facilitating economical operation and demand-oriented maintenance by monitoring and recording hoist performance.
Implementation Method 1
at least one, preferably at least two pressure sensors are arranged in the region of the first and/or the second fluid inlet and at least one further pressure sensor is arranged in the region of the fluid outlet
Data Source
AI summary
The invention relates to a pneumatic hoist and a method for capturing and storing operating states and operating parameters of a pneumatic hoist. In order to provide a pneumatic hoist and a method for capturing and storing operating states and operating parameters of a pneumatic hoist, which allow operating states and operating parameters of the hoist to be reliably determined with a high degree of accuracy in a structurally simple manner, it is provided that the pneumatic hoist comprises a pneumatic motor for lifting and lowering a load, a first fluid inlet of the motor for lifting the load, a second fluid inlet of the motor for lowering the load and a fluid outlet exiting the motor, wherein at least one, preferably two pressure sensors are arranged in the region of the first and/or the second fluid inlet and at least one further pressure sensor is arranged in the region of the fluid outlet. Furthermore, the pneumatic hoist comprises a data processing unit which is designed to capture the pressure values of the pressure sensors and to calculate operating states and operating parameters of the hoist therefrom, and a load collective storage for storing the operating states and operating parameters of the hoist.