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小型混凝土搅拌车宝一向可以或许该当注重哪些?

所属分类:公司消息 宣布时候:2021-03-22 来历:众富购彩:http://vncarmart.net 阅读量:18

1、忌机油只加不换
1. Avoid adding engine oil without changing it
机油在柴油机的利用中是必不可少的,首要感化是光滑、冷却、洁净等。是以,良多小型混凝土搅拌车驾驶员城市注重查抄光滑油的油量,且按规范增加,可是却疏忽了光滑油品质的查抄和对已蜕变机油的实时改换,而致使一些发念头的运念头件老是在较差的光滑环境中运行,加快了各机件的磨损。普通在一般环境下机油的消耗并不是很大,可是却极轻易发生净化,而落空掩护柴油机的感化。在柴油机运行的进程中,良多污物(燃油不完整熄灭而天生的碳烟、积炭和积垢等)城市进入到机油中。对新的或大修后的机器,试运行后杂质就会更多,若是只加不换就投入利用,轻易引发烧瓦、抱轴等不测变乱。别的,即便改换了机油,某些驾驶员由于缺少维修经历或图费事,也会在改换时不完全洗濯油道,使机器杂质残留在油底壳及油路中。
Engine oil is essential in the use of diesel engine. Its main functions are lubrication, cooling and cleaning. Therefore, many small concrete mixer drivers will pay attention to check the amount of lubricating oil, and add it according to the standard, but they ignore the inspection of the quality of lubricating oil and the timely replacement of the deteriorated engine oil, which leads to some engine moving parts always running in poor lubrication environment, accelerating the wear of the parts. Generally, the loss of engine oil is not great under normal conditions, but it is very easy to produce pollution and lose the function of protecting diesel engine. In the process of diesel engine operation, many pollutants (soot, carbon and scale formed by incomplete combustion of fuel) will enter into the engine oil. For new or overhauled machinery, there will be more impurities after commissioning. If it is put into use without replacement, it is easy to cause accidents such as tile burning and axle holding. In addition, even if the engine oil is changed, some drivers will not thoroughly clean the oil passage during the replacement due to lack of maintenance experience or convenience, so that mechanical impurities remain in the oil pan and oil circuit.
2、混凝土商砼车忌缸套和活塞新品不经选配即装置
2. The new cylinder liner and piston should not be installed without matching
在换装汽缸套和活塞时,以为新的汽缸套和活塞都是规范件,具备交换性,装上去就可以利用了。而现实上,汽缸套与活塞的尺寸都是有必然的公役规模。如把尺寸的汽缸套配上更小尺寸的活塞,会使共同空隙太大,形成紧缩有力,而启动坚苦。是以,小型混凝土搅拌车在换装前必然要查抄规范缸套与活塞的尺寸分组代号,装用的缸套与活塞必须使规范活塞的尺寸分组代号与规范缸套的尺寸分组代号一样,如许能力保障二者之间具备规范的共同空隙。别的,各缸装用统一分组代号的缸套和活塞时,要注重装前查验缸塞空隙,为了保障拆卸规范,在装机前应再停止一次查验,以防装上了冒充伪劣的残次产物。
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When replacing the cylinder liner and piston, it is considered that the new cylinder liner and piston are standard parts with interchangeability and can be used after being installed. In fact, there is a certain tolerance range for the dimensions of cylinder liner and piston. If the largest size of cylinder liner is matched with the smallest size of piston, the fit clearance will be too large, resulting in weak compression and difficult starting. Therefore, before the replacement of small concrete mixer, the dimension grouping code of standard cylinder liner and piston must be checked, and the dimension grouping code of standard piston must be the same as that of standard cylinder liner, so as to ensure the standard fit clearance between them. In addition, when cylinder liners and pistons with the same grouping code are installed in each cylinder, the clearance between cylinder and piston should be inspected before installation. In order to ensure the assembly standard, another inspection should be conducted before installation to prevent the installation of fake and inferior defective products.
3水泥运输车忌不查抄柱塞路程余量
3. Do not check the plunger stroke allowance of cement truck
在柱塞式喷油泵的调试进程中,有良多维修职员不注重查抄柱塞的路程余量。所谓柱塞的路程余量,便是指柱塞被凸轮轴上的凸轮顶至上止点后,能持续下行的挪动量。调好小型混凝土搅拌车的供油起头时候后,之以是要查抄路程余量,是由于柱塞的路程余量与柱塞和套筒的磨损有关。
In the debugging process of plunger type fuel injection pump, many maintenance personnel do not pay attention to check the stroke allowance of plunger. The so-called stroke allowance of the plunger refers to the amount of movement that the plunger can continue to move upward after being pushed to the top dead center by the cam on the camshaft. After adjusting the start time of oil supply for small concrete mixer, the reason for checking the stroke allowance is that the stroke allowance of plunger is related to the wear of plunger and sleeve.
柱塞与套筒磨损以后,柱塞要往上多活动一段后能力起头供油,使供油起头时候推延。当拧出调剂螺栓或换用较厚的调剂垫块、垫片以后,柱塞的地位就会上移,使柱塞的路程余量减小。是以,在维修调试喷油泵时,起首就该当查抄此路程余量,用以鉴定喷油泵是不是还许可调剂。查抄时,要按照喷油泵的差别布局而接纳下而差别方式:a)动弹凸轮轴,把柱塞顶至上止点后,拆下出油阀及阀座,并用深度游标尺丈量。b)柱塞被顶至上止点后,用螺丝刀撬起柱塞弹簧的弹簧座,使柱塞回升至点。而后再用厚薄规拔出柱塞下立体与挺杆调剂螺栓之间停止丈量。柱塞的规范路程余量约莫为1.5mm,磨损后的到极限路程余量应不小于0.5mm。
After the plunger and sleeve are worn, the plunger can start to supply oil only after moving upward for a long time, which delays the start time of supply oil. When the adjusting bolt is screwed out or a thicker adjusting pad or gasket is replaced, the lowest position of the plunger will move up, which will reduce the stroke allowance of the plunger. Therefore, in the maintenance and debugging of the fuel injection pump, we should first check the stroke allowance to determine whether the fuel injection pump is still allowed to adjust. During the inspection, different methods should be adopted according to the different structures of the injection pump: a) turn the camshaft, push the plunger to the top dead center, remove the oil outlet valve and valve seat, and measure with the depth vernier. b) After the plunger is pushed to the top dead center, pry the spring seat of the plunger spring with a screwdriver to make the plunger rise to the highest point. Then insert a thickness gauge between the lower plane of the plunger and the tappet adjusting bolt for measurement. The allowance of plunger wear should not be less than 1.5mm after the standard stroke.
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