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1、DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 液压技术座谈会液压技术座谈会 （闭式液压系统介绍及使用）闭式液压系统介绍及使用） Zhang Xin（张新） DCCN-SVH/Pk Dec.13th.2010 Zhang Xin（张新） DCCN-SVH/Pk Dec.13th.2010 2 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of
2、disposal, including all rights relating to copying, transmission and dissemination. DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 座谈内容 闭式液压系统构成 A4VG180EP泵介绍 A6VM160EP马达介绍 管路安装 系统清洁度保证 A4VG180EP泵常见故障的诊断及排除 A6VM160EP马达常见故障的诊断及排除 问题讨论 3 All rights reserved by Bosch Rexroth AG, even and especially in cases
3、of proprietary rights applications. We also retain sole power of disposal, including all rights relating to copying, transmission and dissemination. DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 闭式液压系统介绍 何谓闭式液压系统何谓闭式液压系统 工作介质（液压油或其他）从执行机构直接回到泵工作介质（液压油或其他）从执行机构直接回到泵 4 All rights reserved by Bosch Rexroth
4、 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. DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 闭式液压系统介绍 液压系统都需要安全保护元件液压系统都需要安全保护元件安全阀安全阀 5 All rights reserved by Bosch Re
5、xroth 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. DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 闭式液压系统介绍 任何液压泵和马达工作时都有漏损（散热，润滑）任何液压泵和马达工作时都有漏损（散热，润滑） 增加泄油管路增加泄油管路 6 A
6、ll 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. DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 闭式液压系统介绍 因为漏损且为保证执行机构连续平稳运转，系统需要补油因为漏损且为
7、保证执行机构连续平稳运转，系统需要补油 增加补油泵和 补油阀 增加补油泵和 补油阀 7 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. DCCN/SVH-001-PR-F15 Edition: 1 2009-1
8、2-10 闭式液压系统介绍 增加变量机构以实现泵的排量和输出方向的变化增加变量机构以实现泵的排量和输出方向的变化 增加变量控制 阀及变量活塞 增加变量控制 阀及变量活塞 8 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 dissemina
9、tion. DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 闭式液压系统介绍 闭式系统易发热，故对于大排量泵和马达构成的闭式系 统，常常会增加冲洗油路以加速热交换 闭式系统易发热，故对于大排量泵和马达构成的闭式系 统，常常会增加冲洗油路以加速热交换 增 加 冲 洗 阀 增 加 冲 洗 阀 9 All rights reserved by Bosch Rexroth AG, even and especially in cases of proprietary rights applications. We also retain sole power of
10、disposal, including all rights relating to copying, transmission and dissemination. DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 闭式液压系统介绍 10 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 rig
11、hts relating to copying, transmission and dissemination. DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 闭式液压系统介绍 方向控制阀： 规格小= 仅进行先导控制；（开式系统中的规格大） 过滤器和散热器：规格小 = 只需与补油泵的流量匹配； 液压油箱：小尺寸 = 只需与补油泵流量匹配； 运转速度：补油泵限制= 补油泵的结构及连轴套上的平键 安装位置：任意位置 驱动：可逆的 = 泵马达工况可逆，可实现静压制动 闭式系统的特点闭式系统的特点 11 All rights reserved by Bosch R
12、exroth 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. DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 A4VG180EPD泵介绍 轴向柱塞泵工作原理轴向柱塞泵工作原理 容积泵一种容积泵一种 密封容腔密封容腔 容腔体积可变容腔体积可变 12
13、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. DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 A4VG180EPD泵介绍 轴向柱塞泵工作原理轴向柱塞泵工作原理 13 All
14、 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. DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 A4VG180EPD泵介绍 A4G180EP泵工作原理泵工作原理 2 EP控制 阀
15、1主泵 4 变量活 塞 5 高压溢流 阀（带补油 阀） 6 低压溢 流阀/补 油阀 3 压力切断 阀 过滤 器带 冷启 动阀 及指 示器 2 3 4 5 6 X1，X2 R Ps MA，MB T G 14 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, transmissi
16、on and dissemination. DCCN/SVH-001-PR-F15 Edition: 1 2009-12-10 A4VG180EPD泵介绍 轴端无应力安装轴端无应力安装= 安装时不可以敲击 轴端，放置时不可以轴端着地； 安装时不可以敲击 轴端，放置时不可以轴端着地； 检查泵的旋向：与电机（发动机）一致检查泵的旋向：与电机（发动机）一致 保证油液清洁度保证油液清洁度 清洁度等级：清洁度等级：至少至少ISO4406 20/18/15 油液温度较高时（油液温度较高时（90度度115度）：度）： 至少至少ISO4406 19/17/14 A4G180EP泵使用要求泵使用要求 保证同轴度保证同轴度 = 联轴器安装时，要根据 生产厂家的要求保证同轴度； 联轴器安装时，要根据 生产厂家的要求保证同轴度； 吸油压力：吸油压力：不能低于不能低于0.8bar（绝对压 力），表测压力不低于 （绝对压 力），表测压力不低于-0.2ba
