Some problems will occur after the automatic mixer is used for a long time. For example, the engine is damaged. The following editor will introduce the reasons for the engine damage of the automatic mixer:

一、气门脚空地的调整，需要配气安排各机件在正常运行的时候，随着零件的磨损，气门脚空地可能会发生一些改动。如果凸轮、阀杆端面和挺杆接触磨损后空隙都会变大一些，门头磨损后空隙又会变大，所以，调整时应取空隙的基值。

1、 For the adjustment of valve foot clearance, it is necessary to arrange the valve arrangement. During the normal operation, the valve foot clearance may be changed with the wear of parts. If the cam, valve rod end face and tappet contact and wear, the gap will become larger, and the gap will become larger after the door head is worn. Therefore, the base value of the gap should be taken during adjustment.

二、气门座的铰削，气门座铰削一般为手工业，在这我们需要注意凹陷。在斑驳的地方，能铰出无缺锥面的基础上，使气门铰链越小，就会好一些。还需要注意在凹陷。可使铰孔和铰孔更少，然后是气门试验，判断好作业面方位和宽度。

2、 The valve seat reaming is generally handicraft industry, so we need to pay attention to eliminating the depression. In the mottled place, the smaller the valve hinge is, the better it will be based on the fact that no missing cone can be hinged. It is also necessary to pay attention to eliminating the depression. The reaming holes and reaming holes can be reduced, and then the valve test can be conducted to judge the orientation and width of the working surface.

三、自动搅拌车修补质量差的修补作业突出的问题是气门和气门座作业面的加工质量达不到要求，构成作业面烧蚀。凹陷而前期损坏；凸轮轴轴承在刮削中其接触面积。气门和气门座作业面加工质量达不到要求，从而导致磨损。凹陷而前期损坏。凸轮轴轴承在磨擦过程中所起作用的主要原因是气门和气门座的加工质量不能达到要求，从而导致磨损。

3、 The outstanding problem of the repair work with poor repair quality of the automatic mixer is that the processing quality of the valve and valve seat working surface cannot meet the requirements, which constitutes the ablation of the working surface. Dent and early damage; The contact area of camshaft bearing during scraping. The machining quality of the valve and valve seat working surface cannot meet the requirements, resulting in wear. Dented and damaged in the early stage. The main reason why camshaft bearing plays an important role in the process of friction is that the machining quality of valve and valve seat can not meet the requirements, which leads to wear.

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