混凝土全自動攪拌車在行駛期間產生活塞門環的異常噪音。在下文中,將描述攪拌車的活塞缸異響確定和處理方法。
The full-automatic concrete mixer produces abnormal noise of piston door ring during driving. In the following, the determination and treatment method of abnormal sound of piston cylinder of mixer will be described.
活塞爆震缸的主要原因如下?;钊蜌飧妆谥g的間隙太大。WD615系列發動機活塞裙和氣缸的標準間隙為0.143-0.182,大磨損限至為0.35-0.40。如果發動機運轉一段時間,氣缸活塞將磨損并且潤滑不好?;钊蜌飧字g的匹配間隙由于磨損而增加,導致氣環中的陡峭臺階和活塞與氣缸碰撞。
The main causes of piston knock cylinder are as follows. The clearance 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 large wear limit is 0.35-0.40. If the engine runs for a period of time, the cylinder piston will be worn and poorly lubricated. The matching clearance between piston and cylinder increases due to wear, resulting in steep steps in the gas ring and collision between piston and cylinder.
聲音異常。經過一段時間的操作后,活塞裙和氣缸嚴重磨損,導致嚴重的圓角和對氣缸的沖擊。由于各種原因,每個連桿變形,活塞偏心,間隙增 大,氣缸被撞擊?;钊饸飧讓е掳l動機燃料消耗過多,發動機燃料消耗,燃料消耗和經濟性。如果活塞嚴重撞擊氣缸,活塞將被拉動,氣缸爆裂,連桿損壞,氣缸體損壞。
Abnormal sound. After a period of operation, the piston skirt and cylinder are seriously worn, resulting in serious fillet and impact on the cylinder. Due to various reasons, each connecting rod is deformed, the piston is eccentric, the clearance increases, and the cylinder is impacted. Piston knock cylinder leads to excessive engine fuel consumption, engine fuel consumption, fuel consumption and economy. If the piston strikes the cylinder seriously, the piston will be pulled, the cylinder will burst, the connecting rod will be damaged and the cylinder block will be damaged.
如何確定活塞爆裂:
How to determine piston burst:
(1)氣缸間的切油:氣缸的位置由每個氣缸的方法確定。當油被切入氣缸時,聲音會大大減少或消失,并且在供油恢復時可以清晰地聽到聲音。嗒嗒“聲音,氣缸活塞撞擊氣缸。
(1) Oil cutting between cylinders: the position of the cylinder is determined by the method of each cylinder. When the oil is cut into the cylinder, the sound will be greatly reduced or disappear, and the sound can be clearly heard when the oil supply is restored. Click "sound, the cylinder piston strikes the cylinder.
(2)為了進一步確認氣缸活塞已被撞擊,拆下氣缸噴油器,在氣缸上加入少量CD級增壓油(密封件),安裝噴油器并啟動發動機。敲門聲消失或變弱。操作后,再次發出爆震聲,氣缸肯定會被擊中。
(2) In order to further confirm that the cylinder piston has been impacted, remove the cylinder injector, add a small amount of Cd level booster oil (seal) to the cylinder, install the injector and start the engine. The knock on the door disappeared or weakened. After operation, knock sounds again, and the cylinder will be hit.
對于活塞氣缸,可以使用以下方法。
For piston cylinders, the following methods can be used.
(1)發動機啟動時,在低溫運轉時會發出敲擊聲。溫度正常后,聲音消失,無需進一步處理即可暫時處理。
(1) When the engine is started, it will make a knocking sound when running at low temperature. After the temperature is normal, the sound disappears and can be treated temporarily without further treatment.
(2)當發動機溫度正常時,有明顯的敲擊聲。避免高速操作,拆卸和維修。
(2) When the engine temperature is normal, there is an obvious knocking sound. Avoid high-speed operation, disassembly and maintenance.
(3)拆下氣缸蓋并拉出活塞后,氣缸可能會嚴重脫落或變形,或活塞與氣缸之間的間隙可能過大,可能需要更換氣缸套,活塞和活塞環。
(3) After removing the cylinder head and pulling out the piston, the cylinder may fall off or deform seriously, or the gap between the piston and the cylinder may be too large. It may be necessary to replace the cylinder liner, piston and piston ring.
(4)如果發現連桿(自動上料攪拌車)變形,應盡可能更換。
(4) If the connecting rod (automatic feeding mixer) is found to be deformed, it shall be replaced as far as possible.
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