325D and 329D Excavators Hydraulic System Caterpillar


Cylinders (Boom, Stick and Bucket)

Usage:

325D L A3R


图 1g01335559
(1) 连杆端孔口
(2) 缸盖端孔口
(3) 动臂油缸
(4) 管
(5) 连杆
(6) 缓冲阀
(7) 活塞
(8) 斗杆油缸
(9) 缓冲阀
(10) 铲斗油缸


图 2g01335561
缓冲阀操作
(6) 缓冲阀
(11) 油道

动臂油缸 (3) 或斗杆油缸 ( 8) 移动至靠近伸出冲程的末端时,油道 ( 11) 由缓冲阀 (6) 阻塞。 活塞连杆移动速度减慢,直到停止。



图 3g01335562
缓冲阀操作(回缩杆)
(9) 缓冲阀
(12) 油道

当斗杆油缸 (8) 移动至靠近回缩冲程末端时,油道 ( 12) 由缓冲阀 (9) 阻塞。 活塞连杆移动速度减慢,直到停止。 活塞减速时,冲击负载得以吸收。

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