349F and 352F Excavators Hydraulic System Caterpillar


Swivel

Usage:

352F-VG A9J



图 1g01171766

回转接头

(1) 保持器

(2) 盖

(3) 排流口

(4) 排油孔

(5) 端口

(6) 密封件

(7) 端口

(8) 端口

(9) 壳体

(10) 端口

(11) 端口

(12) 法兰

(13) 密封件

(14) 转子

(15) 端口

(16) 端口

(17) 端口

(18) 端口

(19) 端口

(20) 端口

(21) 回转接头

表 1
端口和回路的识别    
端口(壳体)     端口(转子)     回路    
7     17     向右行驶(后退)    
10     20     向右行驶(前进)    
8     19     向左行驶(前进)    
5     16     向左行驶(后退)    
3     18     排放    
11     15     行驶速度变换    

回转接头完成两种功能。 回转接头将上部结构的泵油输送到下部结构的行驶马达。 上部结构回转。 而下部结构不回转。 回转接头 (21) 将行驶马达的回油输送回液压油箱。

壳体 (9) 通过螺栓固定在上部结构的法兰 (12) 上。 转子 (14) 在壳体 (9) 中旋转。 为了防止旋转,转子 (14) 上通过螺栓连接了一条支撑臂。 壳体 (9) 的端口对转子 (14) 的端口开放。 壳体 (9) 中的油道和转子 (14) 的油道与端口相连。

壳体 (9) 和转子 (14) 的滑动表面之间配备了高压密封件 (6) 和低压密封件 (13) 。 密封 (6) 和 (13) 可防止油道之间漏油。

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