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油泵油嘴
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油泵油嘴的故障原因及解決方法

2021-08-11

油泵油嘴的故障原因

1、液壓油箱油面過低;沒按時節使用液壓油; 

2、進油管被臟物嚴峻堵塞;

3、油泵主動齒輪油封損壞,空氣進入液壓體系;

4、油泵進、出油口接頭或彎接頭“O”形密封圈損壞,彎接頭的緊固螺栓或進、出油管螺母未上緊,空氣進入液壓體系;

5、油泵端面或主、從動齒輪軸套端面磨損或刮傷,兩軸套端面不平度超差;油泵內部零件裝置錯誤形成內漏等。

油泵油嘴的故障解決方法

1、根據時節增加或替換符合要求牌號的機油至規定油面處。取出油管內的異物,上緊接頭處的螺栓或螺母;

2、替換磨損的齒輪油泵油泵軸套,磨損輕微時在平板大將端面磨平坦。其不平度允許差錯0.03mm;上軸套端面低于泵體上平面(正常值低于2.5~2.6mm),如超差時應在下軸套加0.1~0.2mm銅片來補償,裝置時則應套在后軸套上裝入;

3、導向鋼絲彈力應能一起將上、下軸套朝從動齒輪的旋轉方向改變一細小角度,使主、從動齒輪兩個軸套的加工平面緊密貼合;

4、軸套上的卸荷槽有必要裝在低壓腔一側,以消除齒輪嚙合時產生有害的閉死容積;壓入自緊油封前,應在其外表涂一層潤滑油,還要注意將阻油邊際朝向前蓋,不能裝反;

5、在裝好油泵蓋未擰緊螺栓之前,應檢查泵蓋和泵體之間的間隙,是否在0.3~0.6mm之間,若間隙過小,應替換大密封圈和卸壓件。液壓油泵裝好后,應轉動靈活無卡滯現象。



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