小型液壓機柱塞泵常見故障的產生原因及排除方法

小型液壓機柱塞泵常見故障的產生原因及排除方法

系統升不起壓或壓  ┃  (1)同于上述打不出油或流量不足的原因 ┃  (1)參看上欄排除方法                 ┃
┃                    ┃  (2)分油盤磨損后，密封性能不好       ┃  (2)研磨修理或更換分油盤             ┃
┃力提不出來          ┃                                      ┃                                      ┃
┃                    ┃  (3)壓力表開關未打開或已損壞         ┃  (3)打開壓力表開關或更換壓力表       ┃
┣━━━━━━━━━━╋━━━━━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━━━━━━━┫
┃                    ┃  (1)分油盤錯裝                       ┃  (1)糾正分油盤的裝配                 ┃
┃                    ┃  (2)吸油管直徑太小或彎曲太多，吸油阻 ┃  (2)加大吸油管直徑，減小彎頭降低吸油 ┃
┃                    ┃力大，吸入量不足                      ┃阻力                                  ┃
┃                    ┃  (3)油面太低，油面上的空氣被吸人泵內 ┃  (3)加足油量                         ┃
┃                    ┃  (4)吸油管漏氣或堵塞，空氣或汽化油被 ┃  (4)查明漏氣處并處理清除油管堵塞     ┃
┃                    ┃泵吸入                                ┃                                      ┃
┃  油泵工作噪聲大    ┃                                      ┃                                      ┃
┃                    ┃  (5)I作油液黏度太大                  ┃  (5)降低油液黏度                     ┃
┃                    ┃  (6)油溫太高，油沫汽化               ┃  (6)加強油液冷卻                     ┃
┃                    ┃  (7)泵與電動機同軸度超差過大，使泵軸 ┃  (7)調整安裝位置，保證二者同軸度在允 ┃
┃                    ┃受徑向力增大                          ┃許范圍內                              ┃
┃                    ┃  (8)柱塞和柱塞座鉚接處松動或泵內零件 ┃  (8)分解檢查，更換損壞的零件         ┃
┃                    ┃嚴重損壞                              ┃                                      ┃
┣━━━━━━━━━━╋━━━━━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━━━━━━━┫
┃                    ┃  (1)油箱容量小或系統無冷卻裝置       ┃  (1)增加油箱容積，增設冷卻裝置       ┃
┃                    ┃  (2)油液黏度大或污染嚴重             ┃  (2)適當降低油液黏度或更換新油       ┃
┃  油液溫升過快      ┃                                      ┃                                      ┃
┃                    ┃  (3)運動件磨損使得配合間隙過大，從而 ┃  (3)檢修相關零件或換新