1、祝 各位 生意兴隆 身体健康、合 家 欢乐 ! All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 2 14th 15th January 2004, Bosch Rexroth in China BRI-IC C
2、urrent Product range All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 3 14th 15th January 2004, Bosch Rexroth in China All rights
3、reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 4 14th 15th January 2004, Bosch Rexroth in China All rights reserved by Bosch Rexroth AG, ev
4、en and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 5 14th 15th January 2004, Bosch Rexroth in China 单向型 阀 All rights reserved by Bosch Rexroth AG, even and especially in cases
5、 of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 6 14th 15th January 2004, Bosch Rexroth in China 单向阀应用举例 ： All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights
6、 applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 7 14th 15th January 2004, Bosch Rexroth in China 单向阀应用举例 ： 下降 提升 高低压 选择 补油（防吸空阀） 闭锁 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rig
7、hts applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 8 14th 15th January 2004, Bosch Rexroth in China 单向型 阀 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also
8、retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 9 14th 15th January 2004, Bosch Rexroth in China 内泄与外泄 的 比 较 ： 二次侧(A口)的压力不会对 控制压力的作用产生决定性 的影响! 二次侧(A口)的压力一定会 对控制压力的作用产生决定 性的影响! All rights reserved by Bosch Rexroth AG, even and especially in cas
9、es of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 10 14th 15th January 2004, Bosch Rexroth in China 应用举例： All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights
10、applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 11 14th 15th January 2004, Bosch Rexroth in China 应用举例 ： 带有液控单向阀的系统的泄油背压不 能超标! 内泄式液控单向阀不能用于后面带有 可变液阻的场合：如：后接节流阀； 比例阀等! All rights reserved by Bosch Rexroth AG, even and espe
11、cially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 12 14th 15th January 2004, Bosch Rexroth in China All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary
12、rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 13 14th 15th January 2004, Bosch Rexroth in China 双向液控单向阀 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We
13、 also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 14 14th 15th January 2004, Bosch Rexroth in China 双向液控单向阀 结构小巧, 紧凑 价廉 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retai
14、n sole power of disposal, including all rights relating to copying, transmission and dissemination. 15 14th 15th January 2004, Bosch Rexroth in China 单向型 阀 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal,
15、 including all rights relating to copying, transmission and dissemination. 16 14th 15th January 2004, Bosch Rexroth in China 充液阀SF 法兰连接形式； 125400（500）， 世界最大。 弹簧较软，很低的 负压即可开启。 自动关闭。 由于弹簧较软，所 以关闭时间也较慢。 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applicat
16、ions. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 17 14th 15th January 2004, Bosch Rexroth in China 充液阀ZSF （S ） 法兰连接，叠加式结 构；32160（250）。 可液压关闭 （ZSFS） ，时间可 以较快；NG250的关 闭时间可小于100ms 。 All rights reserved by Bosch Rexroth AG, even and e
17、specially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 18 14th 15th January 2004, Bosch Rexroth in China All rights reserved by Bosch Rexroth AG, even and especially in cases of proprieta
18、ry rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 19 14th 15th January 2004, Bosch Rexroth in China All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also
19、 retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 20 14th 15th January 2004, Bosch Rexroth in China 单球式结构 ： 见 图 式 直控式结构只做到10 通径 ，630 巴 ，36 升/ 分 干式直流电磁铁 ， 线圈可拆卸， 线圈可转动 90 o 角。 可带辅助手动 电磁铁和阀芯之间可带力放大杆 顶杆6 带双 向密封，两道密封 之间 的容 腔与P 口相通 ， 实现了阀芯的轴向力平衡， 使换
20、向 力减小。 换向的瞬间P,T,A 相通， 负遮盖， 减小压力 冲击 可在P 口装入一个节流嘴， 以防止流量超过 阀的功率极限（这一点需引起注意） 可在P 口装入一个单向阀，使 液流只 能单向 导通，可截断执行元件的压力冲击， 防止执 行元件在启动阶段发生回溜的现象。 见图示 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all ri
21、ghts relating to copying, transmission and dissemination. 21 14th 15th January 2004, Bosch Rexroth in China 双球式结构：（见图示） 原理与单球式结构相同 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights rel
22、ating to copying, transmission and dissemination. 22 14th 15th January 2004, Bosch Rexroth in China 无球直动式 结 构 结 构 原理与单球式结构相同， 但直流电磁铁为湿式结 构。 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all r
23、ights relating to copying, transmission and dissemination. 23 14th 15th January 2004, Bosch Rexroth in China 3/2 和 4/2 : 两位三通和两位四通之 间只相差一个连接底板， 底板中阀芯的动作靠阀 芯两边的面积差；换向 过程中P,A,B 瞬时相通， 为负遮盖， 压力冲击小。 * 注意：当执行元件为差 动缸时 ， 为了防止缸的 压力放大作用影响阀的 换向， 需将缸 的有杆 腔 与A口相通。 All rights reserved by Bosch Rexroth AG, even an
24、d especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 24 14th 15th January 2004, Bosch Rexroth in China 4/2-的原理图 All rights reserved by Bosch Rexroth AG, even and especially in cases
25、of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 25 14th 15th January 2004, Bosch Rexroth in China All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applicati
26、ons. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 26 14th 15th January 2004, Bosch Rexroth in China 直 控 式 液压方向阀 手动式：扳把式 ， 旋钮式 （ 见图 示 ） 用途：启动停止开关 ， 动作 切换开关 （ 速度切换 ， 压力 切换等 ） 机控式：顶杆式 ， 滚轮式 ， 见图示用途：行程开关 （ 快 进 ， 工进切换 ） All rights reserv
27、ed by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 27 14th 15th January 2004, Bosch Rexroth in China 直控式液压 方 向 阀 液控及气控式：液控， 气控（ 但 需注意：气液之间要绝对密封， 否则易产
28、生气蚀），见 图示 用途：液控：全液控回路的控制， 切换动力回路（大功率切 换） 气控：气液回路的综合控 制。 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 28 14th 15th January 2004
29、, Bosch Rexroth in China All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 29 14th 15th January 2004, Bosch Rexroth in China 直控式液压方
30、向阀 交流电磁铁： 动作时间短， 特性较硬 (0.010.03 s), 启动电 流较大 （ 比正常吸持电 流高3 倍以上),所以 ， 经常启动会发热， 无功 损耗较大, 卡住会烧穿 （ 如：湿式电磁铁卡住 1小时至1.5 小时线圈会 烧),工作频率一般为几 十至120次/ 分钟,寿命可 达1000万 . All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, in
31、cluding all rights relating to copying, transmission and dissemination. 30 14th 15th January 2004, Bosch Rexroth in China 湿式和 干 式 湿式电磁铁： 电磁铁导磁套内腔与回油 相通，且密封， 结构简单， 摩擦力小（ 主 阀与电磁铁之间无密封） 电磁铁内部不生锈（ 尤其 在露天潮湿的场合） 热交换好 铁芯可以靠油来缓冲， 润 滑，冲击小。 干式电磁铁： 各部均不受液压力的作用， 油液的污物不会进入， 线 圈的绝缘性不受油液的影 响；电磁铁内腔不与回油 相通。 本机整流型电磁铁
32、 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 31 14th 15th January 2004, Bosch Rexroth in China 软换向 机 能(3-chambers) ： WE73-/A1
33、2 回油冲击可影响换向力。 价廉 可实现软换向，减少换向冲击。 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 32 14th 15th January 2004, Bosch Rexroth in China
34、 直 控 式 液压方向阀(5-chambers) 线圈可拆卸的电磁铁结构： 由于电磁铁的损坏主要为线圈的烧毁 ， 所以线圈可更换结构可使 更换线圈方便 ， 费 用降低 。 换向时间可调(柔性换向) ： （ 对湿式电磁铁结构 ） 可通过在给电磁铁充油的流道中装入固定 式节流嘴或可调式的节流阀可调节阀的换向时间 （ 可延长至100ms 以上 ） ， 但这 个 时间也受系统的温度 ， 压力和粘度的影响 。 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applic
35、ations. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 33 14th 15th January 2004, Bosch Rexroth in China 在P 口处可装入一个节流嘴 ：当系 统中流 量的大小会超过阀的功率 极限时 ， 为防 止阀的工作不稳定可装此 节流嘴 。 双稳控 制形式 的两位 电磁阀 ：带定 位槽， 阀的换向只需一个脉冲信 号，断 电后阀 的状态不变，只有当另一 个脉冲 信号到 达时，阀
36、的工作状态才会 改变。 非双稳 控制的 两位电 磁阀： 不带定 位槽， 为保持阀的某一个工作状 态需要 一个长 的控制信号，断电后，阀 的工作 位置不 定。 直控式液压方向阀 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemin
37、ation. 34 14th 15th January 2004, Bosch Rexroth in China All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 35 14th 15th January 200
38、4, Bosch Rexroth in China 间接实现大液压功率的切 换 对中形式: 弹簧对中 内外控制 阀芯卡死 先导式结构： All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 36 14th 15th
39、January 2004, Bosch Rexroth in China 液压对 中 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 37 14th 15th January 2004, Bosch Rexro
40、th in China 先导级减压阀: 先导控制阀P 口的压力也不能超 过允许的最高控制压力， 否则 应在P 口装入一个减压阀(45 bar) All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 38 14th 1
41、5th January 2004, Bosch Rexroth in China 换向阻尼器 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 39 14th 15th January 2004, Bosch R
42、exroth in China All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 40 14th 15th January 2004, Bosch Rexroth in China All rights rese
43、rved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 1 14th 15th January 2004, Bosch Rexroth in China 直动式溢流阀的结构 简单 价廉 经典结构: 缓冲间隙 导向, 防偏置. 偏流盘：流线型 泄油口
44、, 平衡液动 力. 将整个 调压范 围分区 ， 采用不同刚度的调压 弹簧，以使特性曲线 更加理想 大流量的场合压力波 动大、装配调节困 难 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 2 14th 15th
45、 January 2004, Bosch Rexroth in China 锥阀结构 球阀结构 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 3 14th 15th January 2004, Bosch R
46、exroth in China 插装式结构 ： All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 4 14th 15th January 2004, Bosch Rexroth in China 应用举例： 直动
47、式阀的缺陷： 大流量的场 合 压 力波动大、 稳 定 性差 装配调节困 难 A x x k p p ) ( = All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 5 14th 15th January 2004,
48、 Bosch Rexroth in China 先 导 式 溢 流阀的基本原理 由直动式的缺陷而 来. 液压力与弹簧力; 液压力与液压力 液压半桥 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 6 14th
49、15th January 2004, Bosch Rexroth in China 先导式溢流 阀 的 结 构 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. 7 14th 15th January 2004, Bosch Rexroth in China
