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  • 变速箱常见的故障有哪些?
  • 本站编辑:赌龙虎稳赢法发布日期:2018-08-31 15:05 浏览次数:
变速箱零件常见的故障及其原因分析
Common faults and causes analysis of gearbox parts
1、变速箱异响
1. Gearbox abnormal sound.
变速箱内发生不正常的声响主要是由于轴承磨损松旷和齿轮间不正常啮合而引起的噪声。当轴承磨损或轴承外圈与变速箱壳体配合松旷,轴承损坏时异响为跳动撞击声。
Abnormal sound in gearbox is mainly caused by loose wear of bearings and abnormal meshing between gears. When the bearing wears out or the outer ring of the bearing is loose with the gearbox housing, the abnormal sound is a bouncing impact sound when the bearing is damaged.
齿轮磨损后啮合齿侧隙增大,或传动零件变形造成齿轮啮合不均匀,而产生均匀的噪声,并随着车速增大而增大。若出现有规律的间歇撞击声,则说明轮齿破碎,应立即停车检修。
When the gear is worn out, the backlash of the meshing teeth increases, or the deformation of the transmission parts causes uneven meshing of the gears, which produces uniform noise and increases with the increase of the speed. If there is a regular intermittent impact sound, then it is indicated that the tooth is broken and should be stopped immediately.
2、变速箱漏油
2. Transmission oil leakage.
是密封件的老化是导致变速箱漏油的主要原因。车辆在长时间的使用下,会导致密封件变硬老化,失去了本身的增塑性。因此在高强度的变速箱工作环境下,密封件开始收缩、变硬、承受不住出现断裂,导致变速箱漏油。
The aging of seals is the main reason for the leakage of gearboxes. The use of vehicles for a long time will cause the seals to harden and become old and lose their plasticity. Therefore, in the working environment of high-strength gearbox, the seal began to shrink, harden, can not withstand breakage, resulting in oil leakage.
3、变速箱乱档
3. Gearbox disorderly.
变速箱乱档表现在离合器技术状况正常时,变速杆不能挂入所需要档位,或挂入档位后不能退回空档,或同时挂入两个档位,主要是由于变速杆定位销松旷、损坏或变速导块上的槽或变速杆下端工作面严重磨损,不用正确拨动变速叉,而引起乱档。
When the clutch is in normal technical condition, the gearbox can not be hung into the required gear, or can not be hung back to the neutral gear, or hung into two gears at the same time, mainly because the gearbox positioning pin is loose, damaged or the gearbox guide block on the groove or gearbox under the face of serious wear and tear, do not need to move correctly Shifting fork causes confusion.
4、变速箱跳档
4. Gearbox jumping.
是指车在行驶时,驾驶员稍松加速加速踏板,变速杆自行跳回空档,滑移齿轮脱离啮合位置。主要是由于轴承松旷、滑键槽松弛、齿轮磨损、 套牙和套齿磨损或沿齿长方向磨成锥形或阶梯形、闸叉与齿轮槽部磨损、闸轨杆表面与钢球的磨损、钢球失圆、弹簧弹力减弱或折断、闸叉变形及变速杆传动机件各传动节松旷等。这些机件的磨损和失常使齿轮的啮合和套牙圈齿圈的啮合不正常,在负荷增大时形成跳挡。
It refers to the driver loosening the acceleration pedal slightly while driving, the transmission rod jumps back to neutral and the sliding gear breaks away from the meshing position. Mainly due to loose bearings, sliding keyway relaxation, gear wear, sleeve and sleeve wear or along the long direction of the tooth wear into a taper or ladder, brake fork and gear groove wear, brake rail rod surface and steel ball wear, ball loss of circle, spring elasticity weakening or breaking, brake fork deformation and transmission parts of the transmission link loosening, etc. . Abrasion and abnormality of these parts make gear meshing and ring gear meshing abnormal, and form a jump gear when the load increases.
5、变速箱换挡困难
5. Gearbox shift difficulty
是变速杆不能挂入档位,或者勉强挂入档后又很难退档。叉轴上固定拨叉的紧固螺钉松动,或变速拨叉严重变形、磨损。而造成相互间关系失常,使齿轮移动阻力增大和啮合困难。还有一种是离合器分离不彻底,间隙过大、摩擦片变形、离合器轴承磨损严重等原因,都可以使离合器分离不彻底而造成变速箱挂档困难,
It is that the gear lever can not be put into gear position, or it is difficult to reverse the gear after it has been stall. The fastening screws of the fork on the fork shaft are loose, or the shifting fork is seriously distorted and worn. The relationship between them is abnormal, which makes the gear moving resistance increase and meshing difficult. Another is that clutch separation is not thorough, excessive clearance, friction plate deformation, clutch bearing wear and tear serious reasons, can make clutch separation is not thorough and cause gearbox gear-up difficulties.
6、变速箱抖杆
6. Gearbox boom.
是变速箱挂入某个档位后,变速杆不停的跳动,使“跳档”的可能性增大。主要是由于变速叉与齿轮环槽不垂直,造成两者配合无间隙。这样当齿轮转动时,使变速叉与齿轮环槽擦碰而造成变速杆抖动。滑移齿轮与轴的键槽磨损,径向和轴向间隙较大,而引起变速杆的抖动。定位球与壳孔间隙过大,当变速杆工作时,定位球就会随变速叉轴载壳孔内前后窜动,而引起变速杆的前后抖动。
After the gearbox is put into a gear shift, the gear lever keeps beating, making the possibility of "jumping gear" more likely. The main reason is that the transmission fork and the gear ring groove are not vertical, resulting in no gap between them. In this way, when the gear rotates, the shifting fork and the gear ring groove are rubbed against, causing the gear lever to shake. The sliding gear and shaft keyway wear, the radial and axial clearances are larger, causing the gear stick to shake. The clearance between the positioning ball and the shell hole is too large, when the transmission rod is working, the positioning ball will move forward and backward with the shell hole of the transmission fork shaft, causing the front and back jitter of the transmission rod.
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