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当前位置:首页 »中科搅拌机新闻 » 常见问题 » 中科聚峰为您介绍小型混凝土搅拌车怎么保养?

中科聚峰为您介绍小型混凝土搅拌车怎么保养?

来源:https://www.jfjiaobanche.com 浏览:发表时间:2020-04-09
1、忌机油只加不换   机油在柴油机的使用中是必不可少的,首要作用是光滑、冷却、清洁等。因而,许多小型混凝土搅拌车驾驶员都会注意查看光滑油的油量,且按规范添加,但是却忽略了光滑油质量的查看和对现已 蜕变机油的及时替换,而导致一些发动机的运动机件总是在较差的光滑环境中工作,加速了各机件的磨损。一般在正常情况下机油的损耗并不是很大,但是却较简单发生污染,而失去维护柴油机的作 用。
1. It is necessary to avoid adding or changing engine oil in the use of diesel engine. The primary function is to smooth, cool, clean, etc. Therefore, many small concrete mixer drivers will pay attention to check the oil quantity of smooth oil, and add it according to the specifications, but ignore the inspection of the quality of smooth oil and the timely replacement of the engine oil which has been transformed, which leads to the moving parts of some engines always work in the poor smooth environment, accelerating the wear of each part. In general, the loss of engine oil is not great under normal conditions, but it is very simple to pollute and lose the function of maintaining diesel engine.
在柴油机工作的过程中,许多污物(燃油不完全燃烧而生成的碳烟、积炭和积垢等)都会进入到机油中。对于新的或大修后的机械,试工作后杂质就会更多,如果只加不换就投入使用,简单引起烧 瓦、抱轴等意外事故。别的,即使替换了机油,某些驾驶员因为缺乏修理经历或图省事,也会在替换时不完全清洗油道,使机械杂质残留在油底壳及油路中。
In the process of diesel engine operation, many pollutants (soot, carbon deposit and crud generated by incomplete combustion of fuel) will enter into the engine oil. For new or overhauled machines, there will be more impurities after trial work. If they are only added or not replaced, they will be put into use, which will simply cause accidents such as tile burning and axle holding. In addition, even if the engine oil is replaced, some drivers will not completely clean the oil passage during replacement due to lack of repair experience or trouble shooting, 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   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,具有互换性,装上去就能使用了。而实际上,汽缸套与活塞的尺度都是有一定的公差规模。如把尺度的汽缸套配上更小尺度的活 塞,会使配合空隙太大,造成紧缩无力,而发动困难。因而,小型混凝土搅拌车在换装前一定要查看规范缸套与活塞的尺度分组代号,装用的缸套与活塞必须使规范活塞的尺度分组代号与规范缸套的尺 寸分组代号相同,这样才干确保两者之间具有规范的配合空隙。别的,各缸装用同一分组代号的缸套和活塞时,要注意装前检验缸塞空隙,为了确保安装规范,在装机前应再进行一次检验,以防装上了 假冒伪劣的劣质产品。
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2. The new cylinder liners and pistons of concrete truck are not allowed to be assembled without selection. When the new cylinder liners and pistons are replaced, the new cylinder liners and pistons are standard parts with interchangeability, so they can be used after installation. In fact, the dimensions of cylinder sleeve and piston have certain tolerance scale. If the largest cylinder sleeve is equipped with the smallest piston, the fitting clearance will be too large, resulting in weak tightening and difficult starting. Therefore, the small concrete mixer must check the size grouping code of the standard cylinder liner and piston before loading. The installed cylinder liner and piston must make the size grouping code of the standard piston the same as the size grouping code of the standard cylinder liner, so as to ensure that there is a standard fit gap between them. In addition, when each cylinder is equipped with cylinder liner and piston with the same group code, pay attention to the inspection of cylinder plug clearance before installation. In order to ensure the installation specification, another inspection shall be carried out before installation to prevent the installation of fake and inferior products.
3、水泥运输车忌不查看柱塞行程余量   在柱塞式喷油泵的调试过程中,有许多修理人员不注意查看柱塞的行程余量。所谓柱塞的行程余量,就是指柱塞被凸轮轴上的凸轮顶至上止点后,能继续上行的移动量。调好小型混凝土搅拌车的供 油开端时刻后,之所以要查看行程余量,是因为柱塞的行程余量与柱塞和套筒的磨损有关。
3. In the process of debugging the plunger fuel injection pump, there are many repairmen who don't pay attention to the plunger stroke allowance. The so-called plunger stroke margin refers to the amount of movement that the plunger can continue to move upward after it is pushed to the TDC by the cam on the camshaft. After adjusting the start time of oil supply for small concrete mixer, the reason to check the stroke margin is that the stroke margin of plunger is related to the wear of plunger and sleeve.
柱塞与套筒磨损之后,柱塞要往上多运动一段后才干开端供油,使供油开端时刻推延。当拧出调整螺栓或换用 较厚的调整垫块、垫片之后,柱塞的位置就会上移,使柱塞的行程余量减小。因而,在修理调试喷油泵时,首要就应当查看此行程余量,用以断定喷油泵是否还答应调整。查看时,要根据喷油泵的 不同结构而选用下而不同方法:a)滚动凸轮轴,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,用螺丝刀撬起柱塞绷簧的绷簧座,使柱塞上升至点。然后 再用厚薄规插入柱塞下平面与挺杆调整螺栓之间进行丈量。柱塞的规范行程余量大约为1.5mm,磨损后的到较限行程余量应不小于0.5mm。
After the wear of the plunger and sleeve, the plunger should move upward for a long time to start oil supply, so as to delay the start of oil supply. When the adjusting bolt is screwed out or the thicker adjusting block and gasket are replaced, the lowest position of the plunger will move up, so that the stroke margin of the plunger will be reduced. Therefore, when repairing and debugging the fuel injection pump, we should first check the stroke margin to determine whether the fuel injection pump still allows adjustment. When checking, the following methods shall be selected according to the different structures of the fuel injection pump: a) roll the camshaft, push the plunger to the top stop, remove the oil outlet valve and valve seat, and measure with a depth vernier. b) After the plunger is pushed to the top dead center, use a screwdriver to pry up the tension spring seat of the plunger tension spring to make the plunger rise to the highest point. Then insert a feeler gauge between the lower plane of the plunger and the adjusting bolt of the tappet for measurement. The standard stroke allowance of the plunger is about 1.5mm, and the stroke allowance to the limit after wear shall not be less than 0.5mm.
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