The abnormal sound of piston knock cylinder will be produced in the running process of self feeding mixer. The following describes the judgment and processing method of automatic feeding mixer.

活塞敲打氣缸的主要原因如下：活塞和氣缸壁之間的間隙太大。WD615系列發(fā)動(dòng)機(jī)的活塞裙和氣缸之間的標(biāo)準(zhǔn)間隙為0.143-0.182，磨損極限為0.35-0.40。發(fā)動(dòng)機(jī)運(yùn)轉(zhuǎn)一段時(shí)間后，氣缸活塞磨損并且潤滑不好良?；钊蜌飧字g的匹配間隙由于磨損而增 大，并且在氣環(huán)中略微出現(xiàn)嚴(yán)重的臺(tái)階，從而導(dǎo)致活塞撞擊氣缸。聲音異常。

The main reasons for the piston striking the cylinder are as follows: the gap between the piston and the cylinder wall is too large. The standard clearance between piston skirt and cylinder of WD615 Series engine is 0.143-0.182, and the wear limit is 0.35-0.40. After the engine runs for a period of time, the cylinder piston is worn and the lubrication is not good. The matching gap between the piston and the cylinder increases due to wear, and serious steps appear slightly in the gas ring, resulting in the piston hitting the cylinder. The sound is abnormal.

經(jīng)過一段時(shí)間的使用后，活塞裙和缸體嚴(yán)重磨損，嚴(yán)重倒圓并沖擊缸體。每個(gè)連桿由于各種原因而變形，導(dǎo)致活塞偏心，間隙變大，氣缸受到撞擊?；钊鸶讜?huì)導(dǎo)致發(fā)動(dòng)機(jī)油耗過多，發(fā)動(dòng)機(jī)油耗降低，油耗降低和經(jīng)濟(jì)效益提高。當(dāng)活塞嚴(yán)重撞擊汽缸時(shí)，它將拉動(dòng)活塞并使汽缸破裂，從而導(dǎo)致連桿斷裂并損壞汽缸體。

After a period of use, the piston skirt and cylinder block are seriously worn, seriously rounded and impacted. Each connecting rod is deformed due to various reasons, resulting in eccentric piston, larger clearance and impact on the cylinder. Piston knock cylinder will lead to excessive fuel consumption, low fuel consumption and economic benefit. When the piston hits the cylinder seriously, it will pull the piston and break the cylinder, which will cause the connecting rod to break and damage the cylinder block.

判斷活塞爆 炸的方法：

The method to judge piston explosion is as follows

（1）逐缸切削油：逐缸方法用于確定噴砂缸的位置。如果將油切到某個(gè)氣缸，聲音會(huì)大大降低或消失，并且在恢復(fù)供油時(shí)可以清晰聽到。“喀噠”聲表示氣缸活塞撞擊氣缸。

(1) Cylinder by cylinder cutting oil: the cylinder by cylinder method is used to determine the position of the sandblasting cylinder. If the oil is cut to a certain cylinder, the sound will be greatly reduced or disappeared, and can be heard clearly when the oil supply is restored“ The "click" sound indicates that the cylinder piston hits the cylinder.

（2）為了進(jìn)一步確認(rèn)氣缸活塞被撞，可以將氣缸的噴油器卸下，向氣缸中添加少量的CD級(jí)增壓油（密封件），安裝噴油器，并裝上發(fā)動(dòng)機(jī)開始。敲擊聲消失或減弱。維修后再次有敲門聲，毫無疑問，它敲擊了汽缸的活塞。

(2) In order to further confirm that the cylinder piston has been hit, the fuel injector of the cylinder can be removed, a small amount of CD grade booster oil (seal) can be added to the cylinder, the fuel injector can be installed, and the engine can be installed. The knocking sound disappears or weakens. There was another knock on the door after the repair. There was no doubt that it knocked on the piston of the cylinder.

對(duì)于活塞缸，可以使用以下方法：

For piston cylinders, the following methods can be used:

（1）發(fā)動(dòng)機(jī)啟動(dòng)后，在低溫下運(yùn)轉(zhuǎn)時(shí)，發(fā)動(dòng)機(jī)會(huì)發(fā)出爆震聲。溫度恢復(fù)正常后，聲音消失，可以暫時(shí)進(jìn)行處理，而無需進(jìn)一步處理。

(1) After the engine starts, when it runs at low temperature, the engine will make a knock sound. After the temperature returns to normal, the sound disappears and can be processed temporarily without further processing.

（2）當(dāng)發(fā)動(dòng)機(jī)溫度正常時(shí)，會(huì)有明顯的爆震聲。盡量避免高速操作，拆卸和維護(hù)。

(2) When the engine temperature is normal, there will be obvious knock sound. Avoid high speed operation, disassembly and maintenance as far as possible.

（3）拆下氣缸蓋并拔出活塞后，發(fā)現(xiàn)氣缸嚴(yán)重掉落或變形，或活塞與氣缸之間的間隙過大，應(yīng)將氣缸套，活塞和活塞環(huán)拉緊。更換。

(3) After removing the cylinder head and pulling out the piston, if the cylinder is seriously dropped or deformed, or the gap between the piston and the cylinder is too large, the cylinder liner, piston and piston ring should be tightened. Replace.

（4）如果發(fā)現(xiàn)（混凝土攪拌機(jī)）的連桿變形，則應(yīng)盡可能更換。

(4) If the connecting rod of (concrete mixer) is found to be deformed, it should be replaced as far as possible.

以上就是自上料攪拌車廠家為大家介紹的關(guān)于攪拌車活塞的相關(guān)內(nèi)容，希望可以幫到大家。更多精彩內(nèi)容可以直接關(guān)注：http://kitchinit.com，會(huì)定期呈現(xiàn)不同方面的內(nèi)容。

The above is from the feeding mixer manufacturers to introduce the relevant content of the mixer piston, hope to help you. More highlights can be directly focused on: http://kitchinit.com , will present different aspects of content on a regular basis.