Vehicle Lifter Unit Loading Test System
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Solution Overview
Problem
There is a lack of devices and methods for conducting a loading test on vehicle lifter lifting units before they leave the factory, which is essential for ensuring safe and reliable operation, as current technologies do not provide a standardized testing solution.
Innovation Solution
A loading test test-and-control system and method for vehicle lifter lifting units, featuring a support bracket with a hydraulic cylinder, pressure sensor, displacement sensor, and strain gauges, which applies controlled pressure and measures deflection and stress to verify the lifting unit's static strength and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no loading test device is provided for lifting units before factory delivery, then manufacturing cost is reduced, but reliability of the lifting unit cannot be ensured
Solution Approach 1:
The testing system is divided into independent modular components: support bracket, loading unit with hydraulic cylinder, measurement units for force/displacement/stress, and control unit. Each module can be independently configured and assembled based on specific testing needs, reducing overall system complexity while maintaining comprehensive testing capability.
Solution Approach 2:
The testing system is designed to be universally applicable to different types of lifting units (vehicle body lifting units, bogie lifting units, etc.). The support bracket and loading unit can accommodate various lifting unit configurations, and the control unit can manage different testing protocols, making the system multi-functional without requiring separate dedicated test rigs for each lifting unit type.
2Measurement precision
If a comprehensive loading test system with multiple sensors is implemented, then measurement precision is improved, but device complexity increases
Solution Approach 1:
Multiple measurement functions (force measurement, displacement measurement, stress measurement) are integrated into a unified testing system with a single control unit that coordinates all sensors and data acquisition. This merging approach maintains high measurement precision through specialized sensors for each parameter while reducing operational complexity by providing centralized control and integrated data processing.
Solution Approach 2:
Traditional mechanical measurement methods are replaced with electronic sensing systems. Hydraulic pressure sensors, displacement sensors, and strain gauges provide precise electronic measurements that are automatically processed by the control unit, eliminating the need for complex mechanical measurement mechanisms and reducing system complexity while improving precision.
3Productivity
If loading test is conducted before assembly completion, then productivity is improved, but manufacturing precision requirements increase
Solution Approach 1:
The loading test is performed at an intermediate stage before final assembly completion, allowing critical components to be tested for basic functionality and structural integrity. This preliminary testing identifies issues early when modifications are still feasible, improving overall productivity by preventing rework after final assembly while managing precision requirements through staged testing protocols.
Data Source
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AI summary
A loading test test-and-control system and method of vehicle lifter lifting unit, the system is used to test a lifting unit, comprising a base (11), the base (11) is provided thereon with a support bracket (12) capable of installing the lifting unit (2) to be tested; the support bracket (12) is provided with a loading unit (13) for applying a loading force to the lifting unit (2) to be tested; the loading unit (13) is electrically connected with a control unit which can control the pressure applied by the loading unit (13) according to a set value. The method uses the system. Before the assembly of the vehicle lifter is completed, the system may carry out a loading test for the lifting unit and verify the function and static strength of the lifting unit, facilitating the test and saving cost.