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液压油泵

马祖奇MARZOCCHI齿轮泵GHPP2-D-10+GHPA3-D-80/3/4/5/6/7/9FG油泵

2026年04月21日 液压油泵 游览量:递增失败!

马祖奇MARZOCCHI齿轮泵GHPP2-D-10+GHPA3-D-80/3/4/5/6/7/9FG油泵

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GHPP2-D-10 是一款高压、模块化、外啮合齿轮泵,专为双联 / 多联泵组合设计的后泵节,主打280bar 高压、小排量、高转速、结构紧凑,适用于中高压液压系统的多回路供油。

一、型号含义(GHPP2-D-10)

  • GHP:系列代号(高压齿轮泵系列)
  • P2:泵节类型(P = 后泵节,用于多联泵组合;2 = 尺寸组别,中型)
  • D:安装形式(标准 4 孔法兰安装)
  • 10:排量规格(理论排量 7.0 cm³/rev)

二、核心技术参数

1. 排量与流量

  • 理论排量:7.0 cm³/rev (7.0 mL/rev)
  • 1500 rpm 理论流量:10.0 L/min
  • 转速范围:500–4000 rpm(推荐 1000–3500 rpm)
  • 最高连续转速:4000 rpm

2. 压力等级

  • 连续工作压力 (P1):280 bar (28 MPa)
  • 间歇压力 (P2):295 bar (29.5 MPa)
  • 峰值压力 (P3):310 bar (31 MPa)

3. 结构与材质

  • 泵体:高强度压铸铝合金(轻量化、耐压)
  • 端盖 / 法兰:球墨铸铁(高压强度)
  • 齿轮 / 轴:渗碳淬火合金钢(高精度、耐磨、抗疲劳)
  • 轴向补偿:浮动侧板(自动间隙补偿,高压高效)
  • 密封:标准 NBR 丁腈橡胶(可选 FKM 氟胶)
  • 轴伸:1:8 锥轴 + 平键(标准),轴端锁紧螺母 M12x1.5
  • 安装法兰:欧洲标准 4 螺栓法兰
  • 油口:40mm 法兰式连接(吸 / 压油口同规格)
  • 重量:约 4.5 kg(单泵节)

4. 性能与介质

  • 容积效率:≥ 92%(额定工况)
  • 总效率:≥ 88%
  • 噪音水平:≤ 74 dB(A)(1500rpm/200bar)
  • 适用介质:矿物液压油(L-HM32/46/68)、合成油
  • 粘度范围:10–100 cSt(最佳 15–50 cSt)
  • 工作温度:-20℃ ~ +80℃

三、结构特点

  • 模块化设计:标准泵节,可与 GHPA2(前泵节) 灵活组合成双联 / 三联泵,实现多流量、多压力回路。
  • 高压稳定:铸铁法兰 + 铝合金泵体 + 浮动侧板,280bar连续压力下内泄小、温升低。
  • 紧凑耐用:小体积、高功率密度,适配空间有限的设备。
  • 标准化接口:通用安装 / 油口 / 轴伸,互换性强、易维护。
  • 右旋单向:标准顺时针旋转(轴端视),不可反转。

四、典型应用场景

  • 多联泵动力单元:与 GHPA2 前泵组合,用于机床、注塑机、液压机的双回路系统。
  • 中高压工业机械:压铸机、剪板机、折弯机、木工机械、纺织机械。
  • 工程机械:小型挖掘机、装载机、叉车的辅助液压系统。
  • 特种车辆:环卫车、清障车、高空作业车的多动作控制。
  • 液压站:紧凑型高压动力单元、测试设备、伺服液压系统。

五、安装与使用要点

  • 组合安装:作为后泵节,需与前泵节(GHPA2)同轴串联,确保同心度。
  • 联轴器:弹性联接,同轴度≤0.05mm,避免径向 / 轴向力。
  • 吸油要求:吸油过滤器≤25μm,吸高≤0.5m,管路密封无漏气。
  • 压力保护:每回路必须配溢流阀,限制压力≤280bar。
  • 磨合期:空载 10min → 50% 压力 10min → 额定运行。
  • 维护:定期换油、检查密封、监测压力 / 流量 / 噪音。

六、常见故障与排除

  • 流量不足:吸空、内泄、转速低 → 查漏气、检修侧板、调转速。
  • 压力上不去:溢流阀故障、密封损坏 → 换阀、换油封 / 侧板。
  • 异常噪音:吸空、同轴度差、轴承磨损 → 优化吸油、校正安装。
  • 漏油:密封老化、结合面不良 → 更换 NBR/FKM 密封、清洁结合面。

七、选型与组合参考

  • 单泵节:GHPP2-D-10(后泵,不可单独作首泵)
  • 双联泵:GHPA2-D-16 + GHPP2-D-10(大 + 小流量组合)
  • 流量计算:Q (L/min) = 排量 (cm³/rev) × 转速 (rpm) ÷ 1000
  • 高温工况:选 FKM 氟胶密封 版本
  • 高压重载:连续压力不超 280bar,间歇不超 295bar

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