小型油压机中溢流阀的常见故障及排除方法

小型油压机中溢流阀的常见故障及排除方法

┃故障现象  ┃    产  生原  因                            ┃    排除  方  法                          ┃
┣━━━━━╋━━━━━━━━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━━━━━━━━━┫
┃          ┃    (l)弹簧弯曲或弹簧刚度太低               ┃    (1)更换弹簧                           ┃
┃          ┃    (2)油液不清洁，阻尼孔不畅通             ┃    (2)清洗阻尼孔                         ┃
┃压力波动  ┃                                            ┃                                          ┃
┃          ┃    (3)锥阀与锥阀座接触不良或磨损           ┃    (3)更换锥阀                           ┃
┃          ┃    (4)滑阀表面拉伤或弯曲变形，滑阀动作不灵 ┃    (4)修磨滑阀或更换滑阀                 ┃
┣━━━━━╋━━━━━━━━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━━━━━━━━━┫
┃          ┃  (1)回油路有空气进入                       ┃  (l)拧紧油管接头                         ┃
┃          ┃  (2)调压弹簧永久变形                       ┃  (2)更换弹簧                             ┃
┃          ┃  (3)流量超过额定值                         ┃  (3)更换流量匹配的溢流阀                 ┃
┃  振动和  ┃                                            ┃                                          ┃
┃          ┃  (4)锥阀与阀座接触不良或磨损               ┃  (4)修磨锥阀或更换锥阀                   ┃
┃  噪声    ┃                                            ┃                                          ┃
┃          ┃  (5)油温过高，回油阻力过大                 ┃  (5)降低油温，降低回油阻力               ┃
┃          ┃  (6)滑阀与阀盖配合间隙过大                 ┃  (6)检查滑阀，控制配合间隙               ┃
┃          ┃  (7)回油不畅通                             ┃  (7)清洗回油管路                         ┃
┣━━━━━╋━━━━━━━━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━━━━━━━━━┫
┃          ┃  (1)滑阀卡住                               ┃  (l)修磨滑阀或更换滑阀                   ┃
┃          ┃  (2)进、出油门接反                         ┃  (2)纠正进、出油口位置                   ┃
┃          ┃  (3)远程控制口接油箱或泄漏严重             ┃  (3)切断远程控制口接油箱的油路，加强密封 ┃
┃          ┃  (4)主阀弹簧太软、变形                     ┃  (4)更换弹簧                             ┃
┃  压力调  ┃                                            ┃                                          ┃
┃          ┃  (5)先导阀座小孔堵塞                       ┃  (5)检查清洗                             ┃
┃  整无效  ┃                                            ┃                                          ┃
┃          ┃  (6)滑阀阻尼孔堵塞                         ┃  (6)清洗阻尼孔                           ┃
┃          ┃  (7)紧固螺钉松动                           ┃  (7)调整阀盖螺钉                         ┃
┃          ┃  (8)压力表不准                             ┃  (8)检修或更换压力表                     ┃
┃          ┃  (9)调压弹簧折断                           ┃  (9)更换弹簧                             ┃
┣━━━━━╋━━━━━━━━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━━━━━━━━━┫
┃          ┃  (l)雒阀与阀座配合不良                     ┃  (l)修磨锥阀或更换锥阀                   ┃
┃          ┃  (2)滑阀与阀体配合间隙过大                 ┃  (2)修配滑阀或更换滑阀                   ┃
┃  泄漏    ┃  (3)紧固螺钉松动                           ┃  (3)拧紧螺钉                             ┃
┃          ┃  (4)密封件损坏                             ┃  (4)检查密封，更换密封                   ┃
┃          ┃  (5)工作压力过高                           ┃  cs)降低工作压力或选用额