349F and 352F Excavators Machine System Caterpillar


Cylinders (Boom, Stick and Bucket)

Usage:

352F-VG A9J



图 1g02162316

(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 2g02162317

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 3g02162318

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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