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从事公路运输作业的小四轮拖拉机“吃轮胎”即后轮胎人字花纹隔花磨损严重是驾驶员比较头痛的故障.这个故障主要是由于机组的偏牵引或偏驱动造成的,下面谈谈造成“吃轮胎”的三个主要原因及消除方法.1.单轴拖车牵引三角形不等腰即拖车牵引鼻中心到拖车两轮轴中心距离不等造成机组偏牵引.这种情况多发生于自制拖车或旧拖车机组上.消除方法是测量校正拖车牵引鼻心到拖车两轮外缘中心的两个最短距离应该相等(相当于测量到拖车两轮轴中心的距离相等),拖车是靠这个等腰三角形来保证“三正”的.轴正,拖车轴与牵引中心线垂直;胎正,两轮胎到牵引中心线的距离相等,没有窜轴现象;鼻子正,拖车牵引鼻中心在拖车牵引中心线上.这样即可解决机组偏牵引问题.实践表明拖车牵引三角形短腰一侧的后轮磨损较其它几个轮胎快得多.
A small four-wheeled tractor that is engaged in road transport operations, “Eating a Tire,” that is, a serious wear and tear of the rear tire’s flower pattern, is a driver’s headache fault, which is mainly caused by partial traction or partial drive of the unit. Three main reasons for “eating tires” and ways to eliminate them.1.The unilateral tractor towing triangle unequal waist traction center of the tow nose to the center of the tow axle center caused by partial traction unit.This situation occurred in homemade trailer or Old towing unit, the elimination method is to measure and correct the towing nose of the towing trailer to the center of two rounds of the towing vehicle, the two shortest distances should be equal (equivalent to measuring the distance between two towing axle centers), and the towing vehicle relies on this isosceles triangle The shaft is positive and the towing axle is perpendicular to the traction center line. The distance between the tire and the traction center line is the same, there is no channeling shaft phenomenon. The nose and trailer traction nose center are on the towing centerline of the trailer. In this way, the problem of partial traction of the unit can be solved, and the practice shows that the rear wheel on the short side of the towing triangle of the trailer is more wear-resistant than the other several tires.