336, 336 GC and 340 Excavator Systems Caterpillar


Swing Motor

Usage:

336 DKS


图 1g06197740
回转马达
(1) 安全阀
(2) 安全阀
(3) 马达盖
(4) 孔口(先导系统油)
(5) 隔板
(6) 摩擦板
(7) 盘
(8) 本体
(9) 驱动轴
(10) 单向阀
(11) 补油孔口
(12) 排流口
(13) 油道(供油或回油)
(14) 单向阀
(15) 油道(供油或回油)
(16) 孔口(供油或回油)
(17) 孔口(供油或回油)
(18) 油道(供油或回油)
(19) 配流盘
(20) 油道(供油或回油)
(21) 制动器弹簧
(22) 制动器活塞
(23) 活塞
(24) 缸筒
(25) 护圈盘
(26) 滑靴


图 2g06240357
回转马达端口
(1) 安全阀
(2) 安全阀
(3) 马达盖
(4) 孔口(先导系统油)
(11) 补油孔口
(12) 排流口
(16) 孔口(供油或回油)
(17) 孔口(供油或回油)

回转马达可拆分为以下三个总成:

  • 旋转总成包括以下部件:缸筒 (24)、活塞 (23)、滑靴 (26)、固定板 (25) 和驱动轴 (9)。

  • 停车制动器包括以下部件:制动弹簧 (21)、制动活塞 (22)、分隔板 (5) 和摩擦盘 (6)。

  • 安全阀和补偿阀包括以下部件:安全阀 (1)、安全阀 (2)、单向阀 (10) 和单向阀 (14)。

来自泵 1 的供油输往端口 (16) 或端口 (17)。 当向右回转时,油进入马达盖 (3) 的端口 (17),并流过油道 (18)。 然后,机油流过配流盘 (19) 的油道 (13),并通过缸筒 (24) 的油道 (20)。 这此机油增加作用于马达盖 (3) 活塞 (23) 上的压力。



图 3g06197741
马达油道
(A) 下止点位置
(B) 进口侧(高压)
(C) 上止点位置
(D) 出口侧(低压)
(13) 油道(配流盘)
(15) 回油油道
(16) 端口
(17) 端口
(18) 供油油道
(20) 油道(缸筒)
(27) 油道(配流盘)
(28) 马达旋转方向(逆时针旋转)

滑靴 (26) 受到活塞 (23) 的压力,紧贴板 (7) 的上表面。 滑靴和活塞在板 (7) 的斜面上沿逆时针方向滑动。 在滑动力的作用下,缸筒 (24) 沿逆时针方向 (28) 旋转。 当每个活塞到达下止点位置 (A) 时,机油流过配流盘 (19) 的油道 (27)。 然后,这些机油经过马达盖 (3) 的油道 (15),流向液压油箱。 缸筒 (24) 继续逆时针旋转,活塞和滑靴也继续沿着板 (7) 的斜面向上移动。 由于缸筒 (24) 通过花键连接到主动轴 (9),因此主动轴的旋转方向与缸筒相同。

当向左回转时,回转泵供油流向端口 (16)。 供油口和回油口相反。 缸筒 (24) 顺时针转动。

回转马达的壳体排油经过马达头 (3) 的排放口 (12),流回液压油箱。

参考: 有关回转停车制动器的更多信息,请参阅系统运行, "先导阀(回转停车制动器)"。

参考: 有关回转安全阀的更多信息,请参阅系统操作, "安全阀(回转)"。

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