With the rapid development of automobile technology, the speed of automobiles is constantly increasing, the occurrence of rapid acceleration, rapid deceleration, sudden steering, and sudden braking, the impact of the rear wheel of the car during driving and the load of the car will affect The running track of the rear wheel of the car.
With the rapid development of automobile technology, the speed of automobiles is constantly increasing, the occurrence of rapid acceleration, rapid deceleration, sudden steering, and sudden braking, the impact of the rear wheel of the car during driving and the load of the car will affect The running track of the rear wheel of the car. In order to ensure the stability of the straight-line driving, the light steering, the positive performance of the steering cycle, and the reduction of the wear of tires and parts, and the safety of driving the car, the technical parameters of the four-wheel positioning of the car are gradually taken seriously by the driver. It also provides favorable conditions for the development of automotive autonomous driving technology.
(1) Basic common sense 1. What is the wheel positioning of a car? The wheel positioning of a modern car refers to the wheel, the suspension system components and the steering system components. The geometric angle and size of the frame mounted on the frame (or the body) must meet certain requirements. To ensure the stability and safety of the car, reduce the wear and fuel consumption of the car.
2, the advantages of cart locator maintenance?
Increase driving safety When the steering wheel is straight, the steering wheel is automatically turned back, the steering wheel is automatically corrected, the gasoline consumption is reduced, the tire wear is maintained, the straight line is increased, the driving control feeling is reduced, and the suspension accessories are worn. 3. Under what circumstances, need a cart locator?
Every time you drive 10,000 kilometers or six months, when driving straight to the left or right, you need to hold the steering wheel straight when the steering wheel is not straight. The steering wheel is not feeling the body will float or sway. The front wheel or the rear wheel wears a new tire. After the accident is repaired, the new suspension or steering related accessories will be used after every 3,000 km of the new car. (II) The main technical parameters of the cart locator and its functions:
In GB/3730.3-92 "The terminology and definition of cars and trailers", it specifies the definition of the parameters related to wheel alignment, taking into account the structure of some car axles without kingpins; pay attention to the relevant parts and geometric elements (face , line, point) spatial position of relative position; dilute the single directionality of parameters such as toe, camber, and back tilt; clarify the specific position of toe measurement, with the development of automobile technology, the role of front wheel positioning and The range of values ​​also has a large change.
(a), the main positioning parameters of the cart locator
1. Toe, the role of the toe of the cart locator is to eliminate the adverse consequences caused by the wheel camber. The wheel camber causes the front wheel to have a tendency to open to both sides, and cannot be rolled outward due to the restraint of the axle. As a result, the wheel is rolled and rolled, which increases the wear. With the front beam, the wheel can be approached directly in the direction of the rolling moment, which reduces the pressure of the outer bearing of the wheel and the wear of the tire.
2, extraversion (Camber)
3, Kingpin caster angle (Kingpin caster angle)
4, Kingpin inclination angle (Kingpin inclination angle)
Cart locator, tambourine machine, press, hydraulic press
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