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车轮胎偏磨到底是怎么回事?

来源:http://www.jfhntjbj.com/ 日期:2021-10-30 发布人:guanli
概述:很多人认为混凝土搅拌车轮胎的偏磨是车轮的外倾角超差造成的,但其实轮胎的偏磨在很大程度上是因前束值的超差造成的,根据从事四轮定位工作
很多人认为混凝土搅拌车轮胎的偏磨是车轮的外倾角超差造成的,但其实轮胎的偏磨在很大程度上是因前束值的超差造成的,根据从事四轮定位工作多年的技术人员总结的经验和大量的定位检测数据分析认为:正确的前束值完全可以有效的避免轮胎的偏磨。
Many people believe that the eccentric wear of concrete mixer tire is caused by the out of tolerance of wheel camber, but in fact, the eccentric wear of tire is largely caused by the out of tolerance of toe in value. According to the experience summarized by technicians engaged in four-wheel alignment for many years and a large number of positioning detection data, it is considered that the correct toe in value can effectively avoid the eccentric wear of tire.
还有一种轮胎偏磨是转向轮较大总转角的超差、车轮外倾角和主销倾角的不正确导致的,混凝土搅拌车在实际的行驶中,大多数是直线行驶的,转弯、倒车和掉头时的较大总转角的时间不多,所以由此引发的偏磨比较少。
Another kind of tire eccentric wear is caused by the out of tolerance of the large total angle of the steering wheel and the incorrect camber angle and kingpin angle. In the actual driving of the concrete mixer, most of them travel in a straight line. There is not much time for the large total angle during turning, reversing and turning, so the eccentric wear caused by this is relatively small.
自动上料搅拌车
混凝土搅拌车轮胎与地面接触时的柔韧性和随意变形的特性很大程度上抵消了因车轮外倾角可能造成的轮胎偏磨,即便是高压轮胎超差的车轮外倾角对轮胎的磨损影响也不大,有很多的厢式货车在空车的时候为了减少轮胎与地面的摩擦、降低滚动阻力而专门设计了可变后轮外倾角。
The flexibility and random deformation characteristics of concrete mixer tires when contacting the ground largely offset the tire eccentric wear caused by wheel camber. Even if the wheel camber of high-pressure tires is out of tolerance, it has little impact on tire wear. Many Van trucks are empty in order to reduce the friction between tires and the ground Variable rear wheel camber is specially designed to reduce rolling resistance.
从设计上考虑,为了约束混凝土搅拌车在直线行驶中车轮外倾角造成的轮胎偏磨,对搅拌车设定了特定的前束值,由于搅拌车行驶不同的路面情况和颠簸、冲撞、机件磨损等因素的存在,即使是较坚固的搅拌车,它原有的定位角度都要不同程度的因上述原因逐渐改变原前束值。有的数值一发生变化,在行驶过程中就能感觉到,比如主销后倾角、车轮外倾角、比较严重的后轮前束值的改变。
In terms of design, in order to restrict the tire eccentric wear caused by the camber angle of the concrete mixer truck when driving in a straight line, a specific toe in value is set for the mixer truck. Due to the different road conditions of the mixer truck and the existence of factors such as bumping, collision and wear of parts, even a relatively solid mixer truck, Its original positioning angle should gradually change the original toe in value due to the above reasons. Some values can be felt during driving as soon as they change, such as kingpin caster, wheel camber and more serious rear wheel toe in.

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