汽车四轮定位有哪些参数?

除了车轮前束、内倾、主销内倾、后倾的其他参数
2025-02-12 05:32:47
推荐回答(3个)
回答1:

一、主销后倾角的故障和调整
  
  1 主销后倾角的故障
  主销后倾角失准后,将出现两种类型的故障:一是转向沉重,其原因是由于主销后倾角过大所致;二是汽车行驶不稳定,路面稍有冲击就会使汽车向一侧倾斜,驾驶员必须要时刻用方向盘校正方向,才能维持直线形式,这主要是由于主销后倾角过小,车轮自动回正力矩不足所致。
  2 主销后倾角的调整
  主销后倾角需通过改变悬架系统来实现。因为对于非独立悬架结构而言,车轴左右两端的转向节主销孔并不存在后倾角度,而主销后倾角是在悬架安装后由结构尺寸所保证的。因此,当主销后倾角不符合规定时,在钢板弹簧下部与主轴的接触面之间垫以不同厚度的楔型铁片来调整。当楔型铁片由后向前插入时,车轴整体将向后转动一定角度,使车轴左右两端的转向节主销后倾角加大;当楔型铁片由前向后插入时,主销后倾角将减小。
  
  二、主销内倾角的故障和调整
  
  1 主销内倾角的故障
  主销内倾角夫准后,如主销内倾角过小,会使汽车行驶稳定性变差,不宜保持直线行驶,方向盘操纵频繁,而且转向沉重。
  2 主销内倾角的调整
  主销内倾角的保证,对于不同的悬架其方式不同,非独立悬架的车轴左右两端的转向节主销孔有固定的内倾角度值。因此,内倾角不符合规定时,须对前轴进行校正。对于独立悬架的汽车,主销内倾角与车轮外倾角可通过调整摇臂长度来实现。调整主销后倾角,可通过转动上摆臂轴来实现。而车轮外倾角则由加在上摆臂轴与固定支架之间的垫片来调整。独立悬架的主销内倾角和车轮外倾角是由转向节的结构确定的,因此调整过车轮外倾角后,主销内倾角也就确定下来,毋需另作调整。
  
  三、车轮外倾角的故障和调整
  
  1 车轮外倾角的故障
  车轮外倾角过大、过小都会加剧轮胎的偏磨损。外倾角过大,轮胎外侧偏磨损严重;外倾角过小,轮胎内侧偏磨损增加。车轮外倾角过小还会引起转向沉重。
  2 车轮外倾角的调整
  当车轮外倾角不符合规定时,须检查轮毂轴承是否松旷、转向节铜套是否磨损和转向节轴是否变形等,根据故障情况可予修复或更换。
  
  四、车轮前束的故障与调整
  
  1 车轮前束的故障
  车轮前束失准时,过大或过小都将引起轮胎偏磨损,影响轮胎使用寿命。前束过大,车轮外侧磨损严重;前柬过小,车轮内侧磨损加快。
  2 车轮前束的调整
  车轮前束值的大小,对于非独立悬架结构可通过改变转向梯形机构的横拉杆长度来实现。调整时,须先松开横拉杆长度锁紧螺母,然后用管钳转动调整螺母套管,该套管左右两端螺旋线方向相反,转动时可使横拉杆向两端伸长或缩短依次来调节横拉杆的长度。对于独立悬架式前轮前束其调整方法取决于结构形式,一般来说,光用尺子量是不够准确的,往往会造成总前束值满足要求,但单边前束无法达到标准,从而导致故障无法排除。
  
  五、侧滑量不合格时的调整
  
  检测结果,如转向轮向外侧滑,且其侧滑量超过《机动车安全运行技术条件》的规定值5米/千米,则表明转向轮前束值太大(或负外倾角太大)。必须进行调整。
  检测结果,若转向轮向内侧滑,且其侧滑量超过《机动车安全运行技术条件》的规定值5米,千米,则表明转向轮负前束值太大(或外倾角太大),也必须进行调整。
  如果用改变转向横拉杆的长度无法使转向轮的侧滑量达到《机动车安全运行技术条件》的规定值,或者当调整转向横拉杆的长度,超过正常的调整量过多,就可能是由于转向轮正、负外倾角太大,必须用车轮定位仪进行全面检测,找出原因,消除隐患。但外倾等定位角的变化,一般都是由于转向桥或车架的弯、扭变形引起的,如发现转向桥或车架产生弯、扭变形,必须解体检测校正。

回答2:

小波那个说法其实说得不完善,看是什么汽车。前驱后驱四驱的车调的都是不一样的

回答3:

错了,车轮前束,主销内倾、后倾,前轮外倾。是这四个

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