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液压油泵

马祖奇MARZOCCHI齿轮泵GHM2-R-20-E1 GHM2-R-9/12/13/16/22/25/30

2026年04月21日 液压油泵 游览量:递增失败!

马祖奇MARZOCCHI齿轮泵GHM2-R-20-E1 GHM2-R-9/12/13/16/22/25/30

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GHM2-R-9 是一款外啮合、固定排量、高压、单向旋转齿轮式液压马达,专为中高压、中小扭矩、高转速液压系统设计。

一、型号含义(GHM2-R-9)

  • GHM2:产品系列代号(高压齿轮马达,第二代结构)
  • R:结构 / 旋转方向(单向顺时针旋转 Right-handed,标准进出油口)
  • 9:排量规格(理论排量 6.4 cc/rev,对应系列代号 9)

二、核心技术参数

1. 排量与流量

  • 理论排量:6.4 cm³/rev (cc/rev)
  • 额定转速:1500 rpm(标准工况)
  • 理论流量:9.1 L/min(@1500 rpm)
  • 转速范围:500 ~ 4000 rpm(连续)
  • 最高转速:4500 rpm(短时)

2. 压力性能

  • 连续工作压力:250 bar (25 MPa)
  • 峰值压力:290 bar (29 MPa)
  • 连续背压:≤ 6 bar(单向)
  • 泄油压力:≤ 1.5 bar(绝对压力)

3. 扭矩与功率

  • 理论扭矩:1.02 Nm/bar(每 bar 压力产生扭矩)
  • 额定扭矩:~ 255 Nm(@250 bar)
  • 峰值扭矩:~ 296 Nm(@290 bar)
  • 额定功率:~ 40 kW(@250 bar, 1500 rpm)

4. 结构与材质

  • 结构形式:外啮合齿轮马达(2 齿轮,固定排量)
  • 壳体:高强度铝合金(轻量化)
  • 端盖 / 法兰:球墨铸铁(高压强度)
  • 齿轮 / 轴:渗碳淬火合金钢(耐磨、高强度)
  • 轴承:高压滚针轴承 + 滑动轴承组合(高承载)
  • 密封:氟橡胶 FKM(耐油、耐高温、长寿命)
  • 旋转方向:单向(R = 顺时针)
  • 安装法兰:标准欧洲 / SAE 标准法兰(通用安装)
  • 轴伸形式:渐开线花键 / 圆柱平键(标准配置)
  • 油口形式:螺纹 / 法兰(标准 G1/2 或 UNF)
  • 重量:~ 3.2 kg(标准型)

5. 性能与介质

  • 容积效率:≥ 93%(额定工况)
  • 机械效率:≥ 90%
  • 总效率:≥ 84%
  • 适用介质:矿物液压油(L-HM32/46/68)、乳化液
  • 介质粘度:10 ~ 100 mm²/s (cSt)
  • 工作温度:-20℃ ~ +100℃
  • 清洁度:NAS 8 级以上(建议≤10μm 过滤)

三、结构特点

  • 高压轻量化:铝合金壳体 + 铸铁端盖,兼顾强度与重量
  • 高效齿轮:精密磨齿、高重合度、低噪音、高效率
  • 高压轴承:组合轴承设计,承受径向 / 轴向高压载荷
  • 单向稳定:R 型单向旋转,结构简化、可靠性高、寿命长
  • 低泄漏:精密配合 + 高压密封,内泄漏小、容积效率高
  • 通用接口:标准法兰 / 油口 / 轴伸,互换性强、易替换
  • 抗污染:齿轮结构简单,抗杂质能力优于柱塞马达
  • 高转速:最高 4000+rpm,适配高速液压驱动

四、典型应用场景

  • 工程机械:小型挖掘机、装载机、叉车的液压马达驱动
  • 农业机械:收割机、播种机、喷雾机的行走 / 工作机构
  • 工业设备:机床液压系统、注塑机、液压夹具、打包机
  • 车辆机械:环卫车、清障车、高空作业车的液压执行器
  • 船舶设备:小型船用液压绞车、舱门启闭、舵机驱动
  • 特种机械:液压工具、钻机、清扫车、卷扬机

五、安装与使用要点

  • 旋转方向:R 为顺时针(从轴伸端看),不可反转
  • 泄油口:必须单独回油箱,保持无压,禁止接背压
  • 油口连接:严格区分进油口(高压)、回油口(低压)
  • 润滑保护:启动前注油润滑,避免干磨损坏轴承
  • 压力控制:系统压力≤250 bar连续工作,防止过载
  • 过滤精度:≤10μm,防止杂质磨损齿轮与轴承

六、同系列替代型号

  • GHM2-R-6(排量 4.5 cc/rev,小扭矩)
  • GHM2-R-12(排量 8.3 cc/rev,大扭矩)
  • GHM2-L-9(L = 逆时针旋转,同排量)
  • GHM2A-R-9(A = 加强型,高压 / 重载)

七、选型提示

  • 排量匹配:按流量 / 转速需求选 6.4 cc/rev 排量
  • 压力等级:250 bar连续,适配中高压系统
  • 旋转方向:R = 单向顺时针,需反转选 L 型
  • 安装接口:标准SAE / 欧洲法兰,通用替换性强
  • 工况适配:高速中小扭矩场景优先,稳定可靠

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