液压挖掘机驱动桥减速器过热的缘故缘故原因有哪些?

日期:2018-09-13   源头:http://www.sefibox.com/
1、驱动桥减速器过热征象:挖掘机行驶一定里程后,驱动桥内的活动机件作相对滑动摩擦,因此孕育发生一定的温度。用手触摸不该有烫手以为,不然,即视为过热。
1. Drive axle reducer overheating phenomenon: after the excavator travels a certain mileage, the moving parts in the drive axle make relative sliding friction, thus producing a certain temperature. You should not feel hot when you touch with your hands, otherwise you will see it as overheating.
2、缘故缘故原因阐发:
2, cause analysis:
驱动壳内的主传动机件紧张有主减速器、差速器和轮边减速器等。主减速器和差速器连在一同,聚集地分派在驱动桥的中心,此件变乱时都存在滑动摩擦征象。
The main transmission components in the drive housing include main reducer, differential and wheel reducer. The main reducer and the differential are connected together and distributed centrally in the middle of the drive axle. Sliding friction phenomenon exists in this work.
正常环境下,驱动桥内相对活动的共同机件外貌应有一层润滑油膜作为介质,以防两机件发生直接打仗摩擦。这不但延缓了机件的磨损进程,同时淘汰摩擦孕育发生的热量,颠末润滑油的活动还能将机件摩擦孕育发生的热量带走分发,使驱动桥内的主传动局部温度飞扬,以对峙正常的温度。不然,将会使驱动桥内的两共同件在相对活动时,因缺乏润滑油而孕育发生半干摩擦或干摩擦,摩擦系数增大,摩擦力也相应增大,温度高涨。
加长臂挖掘机出租
Normally, a lubricating oil film should be used as the medium on the surface of the matching parts which move in relative motion in the driving axle to prevent direct contact friction between the two parts. This not only delays the wear process of the machine parts, but also reduces the heat generated by friction. The heat generated by friction of the machine parts can be carried out by the flow of lubricating oil, so that the temperature of the main transmission part of the drive axle is reduced to maintain normal temperature. Otherwise, when the two fittings in the drive axle move in relative motion, the semi-dry friction or dry friction will occur due to the lack of lubricating oil, the friction coefficient will increase, the friction force will also increase accordingly, and the temperature will rise.
由于缺乏润滑油构成散热不良,机件温度分发不出去而积聚,机件活动速率越高,时间越长,则温度越高。由此可见,驱动桥主传动局部过热,是因两相对活动的机件变乱外貌发生直接摩擦所致。之以是能发生直接摩擦,一是没有润滑油或淘气油过少;二是虽有富裕的淘气油,但由于共同间隙过小,齿轮啮适时轮齿挤压过紧,使轮齿外貌不至于能构成油膜而孕育发生直接摩擦;三是过载时共同机件相互压过大,将机件外貌油膜挤破孕育发生直接摩擦而惹起过热。四是由于润滑油风致变坏使之在零件外貌难以构成油膜,两机件会发生直接摩擦而过热。
Due to the lack of lubricant caused by poor heat dissipation, the temperature of the parts can not be emitted and accumulated, the higher the speed of the parts, the longer the time, the higher the temperature. It can be seen that the overheating of the main drive part of the drive axle is caused by direct friction between the working surfaces of the two relative moving parts. The reason why direct friction can occur is that there is no lubricating oil or too little lubricating oil; the second is that although there is enough lubricating oil, the gear teeth are squeezed too tightly when meshing because of the small clearance, so that the surface of the gear teeth can not form oil film and produce direct friction; the third is that when overloading, the matching parts are pressed too much each other, which will cause the surface of the parts to be overloaded. Oil film extrusion leads to direct friction and causes overheating. Fourthly, it is difficult to form oil film on the surface of parts because of the deterioration of lubricating oil quality. The two parts will be directly rubbed and overheated.
3、诊断与扫除:
3. Diagnosis and exclusion:
(1)驱动桥维修后运用时孕育发生过热,是装置过紧的约莫性很大,应查抄调停。
(1) Drive axle overheating after maintenance, is the possibility of assembly too tight, should be checked and adjusted.
(2)如因永劫间上坡惹起过热,少数是因大负荷行驶时间过长,应停车苏息。
(2) If overheating is caused by long-term uphill, most of them are caused by long driving time under heavy load, they should stop and rest.
(3)要是查抄因润滑不良惹起过热,应对症扫除。比如,缺乏润滑油时应补充,润滑油蜕变时应予以互换。
(3) if check for overheating caused by poor lubrication, remove symptoms. For example, when lubricating oil is lacking, it should be added that when lubricating oil deteriorated, it should be replaced.
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