1、气门脚空地的调整:配气安排各机件在正常运用中,跟着零件的磨损,气门脚空地将发生改动。如凸轮、气门杆端面及挺杆接触面磨损后空地将变大,而气门头与气门座磨损后空地又变小,因此,在调整中应取空地的基地值为宜。
1. Adjustment of valve foot clearance: during the normal operation of various parts of the valve arrangement, the valve foot clearance will be changed with the wear of parts. For example, after the cam, valve stem end face and tappet contact surface are worn, the open space will become larger, while after the valve head and valve seat are worn, the open space will become smaller. Therefore, the base value of the open space should be taken in the adjustment.
2、气门座的铰削:气门座铰削通常为手作业业,应格外重视三个疑问:一是在凹陷、斑驳,能铰出无缺锥面的基础上,铰削量越小越好;二是铰削时用力要均匀,起刀收刀要轻,少铰多调查,以保证较少的铰削量和较高的光洁度;三是与气门试配,判定好作业面方位和宽度。
2. Valve seat reaming: valve seat reaming is usually manual operation, so we should pay special attention to three questions: first, on the basis of eliminating depression and mottle and being able to ream out a perfect cone, the smaller the reaming amount, the better; Second, the force during reaming shall be uniform, the starting and closing of the knife shall be light, less reaming and more investigation, so as to ensure less reaming amount and higher finish; Third, trial fit with the valve to determine the orientation and width of the working surface.
3、自动搅拌车修补质量差在修补作业中出色的疑问是气门与气门座作业面加工质量达不到恳求,构成作业面烧蚀、凹陷而前期损坏;凸轮轴轴承在刮削中其协作空地、接触面积、各轴承同心度达不到恳求,加速磨损,呈现异响构成前期损坏;气门导管在更换新件时,铰削质量达不到规矩恳求,直接影响气门及气门座运用寿数。
3. The repair quality of automatic mixer truck is poor. The outstanding question in the repair operation is that the processing quality of the working surface of valve and valve seat can not meet the requirements, which constitutes the ablation and depression of the working surface and early damage; During the scraping of camshaft bearing, its cooperation space, contact area and concentricity of each bearing can not reach the request, which accelerates the wear and presents abnormal noise, resulting in early damage; When the valve guide is replaced with a new part, the reaming quality can not meet the requirements, which directly affects the service life of the valve and valve seat.
自动搅拌车用户购买多大载重量的自上搅拌铲车要本着实用够用的原则,不用于挖掘用于搬运大量松散材料根据作业量的大小来确定:既不能过大也不能过小,过大造成浪费、过小则不够使用。变速箱滤清器堵塞液力传动油滤清器堵塞,致使供油不畅,也会导致变速箱油压过低,应查找堵塞原因,及时更换新的油液和滤清器。
The self-propelled mixing forklift with a large load capacity purchased by the user of the automatic mixing truck shall be based on the principle of practicality and sufficiency, and shall not be used for excavation and handling a large amount of loose materials. It shall be determined according to the size of the operation volume: it shall not be too large or too small, which will cause waste and too small will not be enough for use. The transmission filter is blocked and the hydraulic transmission oil filter is blocked, resulting in poor oil supply and low transmission oil pressure. Find out the cause of the blockage and replace the oil and filter in time.
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