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進行路拌機液壓泵維修時的要點
來源：http://www.cansolv.cn/ 日期：2023-05-12
路拌機液壓系統行走與拌和轉子的驅動均為全液壓閉式回路。行走速度與拌和轉子轉速均可實現無級變速輔助系統（轉向、拌和轉子升降、尾門開閉）均為液壓操縱。通過壓力自動補償裝置（POR系統）實現功率自動分配。在進行路拌機液壓泵維修的時候，應該注意什么？下面冷再生機租賃廠家為您分析：
The hydraulic system of the road mixer and the drive of the mixing rotor are both fully hydraulic closed circuits. Both the walking speed and the mixing rotor speed can achieve stepless speed change assistance systems (steering, mixing rotor lifting, tailgate opening and closing), all of which are hydraulically operated. Automatic power distribution is achieved through pressure automatic compensation device (POR system). What should be paid attention to when repairing the hydraulic pump of the road mixer? Below is an analysis of the cold regeneration machine rental manufacturer for you:
（1）檢查路拌機液壓泵有無傷痕和銹蝕現象，必要時應更換新品。
(1) Check the hydraulic pump of the road mixer for signs of damage and rust, and replace it with a new one if necessary.
（2）檢查路拌機液壓泵副配合情況。將柱塞端頭插人柱塞套內，傾斜約60°，若柱塞能在自身作用下緩慢地下滑為配合良好。
(2) Check the coordination of the hydraulic pump pair of the road mixer. Insert the end of the plunger into the plunger sleeve and tilt it at about 60 °. If the plunger can slowly slide under its own action, it is considered a good fit.
（3）檢查路拌機液壓泵柱塞副的密封性。用手握住柱塞套，兩個手指堵住柱塞頂端和側面的進油口。用另一只手拉出柱塞，感到有較大的吸力，放松柱塞立即縮回原位，表明柱塞副密封良好，否則應更換柱塞副。
(3) Check the sealing of the hydraulic pump plunger pair of the road mixer. Hold the plunger sleeve with your hand and block the oil inlet at the top and side of the plunger with two fingers. Pull out the plunger with the other hand and feel a strong suction. Release the plunger and immediately retract it back to its original position, indicating that the plunger pair is well sealed. Otherwise, the plunger pair should be replaced.
（4）檢查出油閥副減壓環帶是否磨損有臺階或傷痕現象，必要時應予以更換。
(4) Check if the pressure reducing ring of the oil outlet valve is worn, stepped or scratched, and replace it if necessary.
（5）檢查出油閥副的配合情況。用手指堵住出油閥下孔，用另一手指將出油閥輕輕向下壓，當手指離開出油閥上端時，它能自動彈回原位，表明出油閥副密封良好，否則應更換出油閥副。
(5) Check the fit of the oil outlet valve pair. Block the lower hole of the outlet valve with your finger, and gently press the outlet valve down with your other finger. When your finger leaves the upper end of the outlet valve, it can automatically rebound back to its original position, indicating that the outlet valve pair is well sealed. Otherwise, the outlet valve pair should be replaced.
（6）檢查路拌機液壓泵挺柱體。噴油泵體和挺柱體之間的標準間隙為0～0.03mm，如超過0.2mm，則應更換零件。
(6) Check the hydraulic pump tappet body of the road mixer. The standard clearance between the fuel injection pump body and the tappet body is 0-0.03mm. If it exceeds 0.2mm, the parts should be replaced.
（7）檢查路拌機液壓泵柱塞凸緣和控制套的凹槽之間的間隙，應為0.02～0.08mm，如超過0.12mm，需要更換控制套。
(7) Check the gap between the flange of the hydraulic pump plunger of the road mixer and the groove of the control sleeve, which should be 0.02-0.08mm. If it exceeds 0.12mm, the control sleeve needs to be replaced.
常見的路拌機液壓泵維修就如上述所說，若是一些自己無法解決的故障問題，在沒有完全把握解決故障的情況下，建議盡量尋找專業的液壓泵維修廠家，以免自己動手造成不必要的損失。更多相關事項就來我們網站http://www.cansolv.cn咨詢！
The common maintenance of hydraulic pumps in road mixers is as mentioned above. If there are some fault problems that cannot be solved by oneself, it is recommended to seek professional hydraulic pump maintenance manufacturers as much as possible without fully understanding the problem, to avoid unnecessary losses caused by self intervention. For more related matters, come to our website http://www.cansolv.cn consulting service
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