自動攪拌一體車開拓者！

The multi-functional mixer in the process of driving will appear piston cylinder knock abnormal sound, the following for you to explain the multi-functional mixer this situation judgment, there are treatment methods.

產生活塞敲缸的主要原因有以下幾個方面：活塞同氣缸壁的間隙太大。WD615系列發動機活塞裙部和氣缸的標準間隙為0.143-0.182，最大磨損極限為0.35—0.40。發動機運行一段時間后，氣缸活塞產生磨損，加之潤滑不好，活塞和氣缸的配合間隙由于磨損而增大，并在第一道氣環略下處出現較嚴重的臺階，使活塞敲擊氣缸發出異響?；钊共亢蜌飧自谶\行一段時間以后，磨損嚴重，造成嚴重失圓而敲缸。個別連桿由于種種原因產生變形，造成活塞偏磨，間隙變大而敲缸?；钊酶讜е掳l動機燃油消耗過高、發動機竄機油、機油耗量多、經濟性差。當活塞敲缸嚴重時，還會拉碎活塞，打壞氣缸，以致于連桿斷裂，打壞氣缸體。

The main reasons for piston knocking are as follows: the gap between piston and cylinder wall is too large. The standard clearance between piston skirt and cylinder of WD615 Series engine is 0.143-0.182, and the maximum wear limit is 0.35-0.40. After the engine has been running for a period of time, the cylinder piston is worn, and the lubrication is not good. The fit clearance between the piston and the cylinder increases due to wear, and serious steps appear at the lower part of the first gas ring, which makes the piston knock the cylinder and make abnormal noise. After running for a period of time, piston skirt and cylinder wear seriously, causing serious out of round and knocking cylinder. Some connecting rods are deformed due to various reasons, resulting in eccentric wear of piston, larger clearance and knocking cylinder. Piston knocking will lead to high fuel consumption, engine oil channeling, high oil consumption and poor economy. When the piston knocks the cylinder seriously, it will break the piston and damage the cylinder, so that the connecting rod is broken and the cylinder block is damaged.

活塞敲缸的判斷方法：

Judgment method of piston knocking:

(1)逐缸斷油：采取逐缸斷油的方法來確定敲缸的位置，如果斷油至某缸時，聲音明顯的減小或者消失，而當恢復供油時能聽到明顯的“嗒嗒”聲，說明該缸活塞敲缸。

(1) Cylinder by cylinder oil cut off: the method of cylinder by cylinder oil cut-off is adopted to determine the position of cylinder knocking. If the oil cut-off reaches a certain cylinder, the sound obviously decreases or disappears, and when the oil supply is restored, an obvious "click" sound can be heard, indicating that the cylinder piston is knocking.

(2)為了進一步證實該缸活塞敲缸，可以將該缸的噴油器卸下來，向氣缸內加入少量的CD級中增壓機油(起密封作用)，再裝好噴油器，發動發動機，敲擊聲消失或者減弱，運行一會敲擊聲再度出現，則是該缸活塞敲缸無疑。

(2) In order to further confirm the piston knocking of this cylinder, the fuel injector of the cylinder can be removed, a small amount of CD grade medium booster oil can be added into the cylinder (for sealing effect), and then the injector is installed to start the engine. The knocking sound disappears or weakens. After running for a while, the knocking sound appears again, which is undoubtedly the cylinder piston knocking.

多功能攪拌車

Multi function mixer

遇到活塞敲缸可以采用以下方法處理：

In case of piston knocking, the following methods can be adopted:

(1)發動機起動后，低溫運行時有敲擊聲，溫度正常后，聲音消失，可以暫不處理，繼續運行。

(1) After the engine is started, there is knocking sound when it is running at low temperature. When the temperature is normal, the sound disappears, so it can be left untreated and continue to run.

(2)發動機溫度正常時，有明顯的敲擊聲，應盡量避免高速運行，盡快拆卸維修。

(2) When the engine temperature is normal, there will be obvious knocking sound. It should be avoided to run at high speed as far as possible, and the engine should be disassembled and repaired as soon as possible.

(3)拆下氣缸蓋，抽出活塞以后，發現氣缸嚴重失圓、拉傷，或者活塞和氣缸的間隙太大，應進行更換，更換氣缸套、活塞及活塞環。

(3) After removing the cylinder head and pulling out the piston, it is found that the cylinder is seriously out of roundness, strained, or the gap between the piston and the cylinder is too large. Replace the cylinder sleeve, piston and piston ring.

(4)如果發現(混泥土攪拌車)連桿變形，應盡量更換。

(4) If the connecting rod is deformed, it should be replaced as much as possible.

以上就是小編為大家介紹的多功能攪拌車活塞敲缸異響的有關知識，希望能給大家帶來幫助。

The above is the introduction of the small multi-function mixer piston knock cylinder noise related knowledge, I hope to bring you help.