The principle of a four-wheel alignment machine mainly involves precise measurement and adjustment of the vehicle’s four-wheel parameters to ensure stability and maneuverability during driving. Here is a detailed explanation of the principles of a four-wheel alignment machine:
I. The function of a four-wheel alignment machine
A four-wheel alignment machine is a precision measurement instrument used to detect the four-wheel alignment parameters of a vehicle. It measures the relative angles between the wheels and the vehicle centerline, as well as the relative position between the wheels and the rear axle, to ensure that the vehicle’s four wheels work together in the most ideal position. During this process, the four-wheel alignment machine compares the measured data with the original factory design parameters and guides the user to adjust the wheel alignment parameters accordingly to meet the original design requirements and achieve the desired vehicle performance.
II. The working principle of a four-wheel alignment machine
Data acquisition:
The data acquisition part of a four-wheel alignment machine is usually composed of four measurement probes, which are equipped with sensors such as CCD that can sense the coordinate of the infrared emitting diodes on the measurement probe opposite to it.
The coordinate information is transmitted to the wireless receiver in the cabinet through the wireless transmitter, and then transmitted to the computer host via the COM port in the industrial computer for calculation and processing.
Data processing and display:
The data processing part of a four-wheel alignment machine mainly includes a computer system, a power system, and an interface system.
The computer system is used to implement the user’s instructions for the four-wheel alignment machine and collect and process the image data of the sensors.
The processed data is displayed together with the original factory design parameters, and guides the user to adjust the vehicle wheels.
Adjustment and Feedback:
Based on the measurement results from the four-wheel alignment instrument, the technician can adjust the wheel alignment parameters (such as camber, caster angle, etc.) to meet the original factory design requirements.
After the adjustment is complete, the four-wheel alignment instrument can be used again for measurement to ensure that the adjustment has achieved the desired results.
III. Parameters of Four-Wheel Alignment
The parameters of four-wheel alignment mainly include front and rear wheel alignment:
Front Wheel Alignment: involves the installation relationship between steering wheels, steering knuckles, and front axles, and the main parameters include camber, caster angle, front wheel camber, and front wheel toe-in. These four factors jointly affect the vehicle’s steering, driving stability, and tire wear.
Rear Wheel Alignment: adjusts the relative position of the rear axle wheels, including rear wheel camber and individual rear wheel toe-in. This is a key factor in maintaining vehicle stability and reducing tire wear.
IV. Precautions for Using Four-Wheel Alignment Instrument
Before performing four-wheel alignment, it is necessary to check whether the vehicle’s suspension system, wheel bearings, and steering system have any gaps or damage. The tire tread depth tolerance should be within the specified range, and the tire inflation pressure should also meet the specified requirements.
During four-wheel alignment, the operation should be strictly carried out according to the display steps of the alignment instrument, and no steps should be skipped.
When adjusting the wheel alignment parameters of each wheel, it should comply with the requirements of the “maintenance manual” of each model. For situations that do not meet the specified requirements, adjustments need to be made accordingly, but the original vehicle cannot be adjusted except for special cases.
In summary, the principle of the four-wheel alignment instrument is to accurately measure and adjust the wheel alignment parameters of the vehicle to ensure the stability and controllability of the vehicle during driving. When using the four-wheel alignment instrument, attention should be paid to the relevant operation specifications and precautions to ensure the accuracy of the measurement results and the effectiveness of the adjustment.
Our company specializes in producing high-end wheel protection equipment such as four-wheel alignment devices, tire removal machines, and balancing machines. We are an automotive maintenance equipment manufacturer that integrates research and development, production, sales, and service. Roadbuck is committed to the research, development, production, and sales of high-end automotive repair equipment. We continuously innovate around customer needs and launch professional automotive repair service solutions. With high-quality products and thoughtful services, we strive to improve the user experience and build a good reputation. Currently, Roadbuck products have been sold to more than 60 regions abroad, serving more users in the automotive repair industry.
Oct-23-2024
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