意大利马祖奇MARZOCCHI液压齿轮泵1PD1.6/2/2.5/3.3/4.2/5/11.5






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1PD1.6 是一款 1 系列微型定量外啮合齿轮泵,核心特征为理论排量 1.1 cm³/rev、1500 rpm 时流量约 1.6 L/min,主打超小流量、高精度、高耐压,常用于精密夹紧、润滑、测试及微型动力单元。
型号完整释义
1PD1.6
- 1P:产品系列(1 系列微型齿轮泵,标准法兰 / 螺纹油口、锥形轴)
- D:密封与结构(适配矿物油的 NBR 密封,可选高温 / 特殊密封)
- 1.6:流量标识(1500 rpm 时名义流量约 1.6 L/min,对应理论排量 1.1 cm³/rev)
核心技术参数
| 参数项 | 规格值 |
| 理论排量 | 1.1 cm³/rev (1.1 mL/rev) |
| 连续工作压力 | 210–230 bar (21–23 MPa) |
| 峰值压力 | 250–270 bar (25–27 MPa) |
| 转速范围 | 600–6000 rpm(额定 1500 rpm) |
| 1500 rpm 流量 | ≈1.6 L/min |
| 容积效率 | ≥93%(额定工况) |
| 机械效率 | ≥90% |
| 适用介质 | 矿物液压油(L-HM32/46/68)、合成液压油 |
| 粘度范围 | 10–100 cSt(推荐 25–40 cSt) |
| 温度范围 | -20℃至 + 80℃(密封 NBR),可选高温至 + 120℃ |
| 安装 | 4 孔矩形法兰(中心距 25.4/30 mm 可选) |
| 轴伸 | 1:8 锥形轴(带平键),直径 5–6 mm |
| 油口 | G3/8" 或 BSP 螺纹(进 / 出油) |
| 重量 | ≈1.2–1.6 kg |
结构与原理
- 核心结构:高强度铝合金泵体、铸铁端盖;高精度渐开线齿轮副;轴向间隙自动补偿(浮动侧板 / 轴套);双重轴封(机械密封 + 骨架油封)。
- 工作原理:吸油腔齿轮旋转形成真空吸油,压油腔啮合降压输出,定量特性(流量 = 排量 × 转速 ÷1000)。
性能特点
- 超小流量精准供油:1.1 cm³/rev 小排量,适配精密夹紧、润滑、测试台等小流量场景。
- 高耐压长寿命:230 bar 连续压力,轴向补偿减少内泄,额定转速下效率稳定。
- 低噪低脉动:精密齿轮与缓冲油口设计,噪音≤70 dB (A),适合精密设备。
- 紧凑易安装:铝合金壳体轻量化,标准法兰 / 油口 / 轴伸,互换性强。
典型应用
- 精密液压:机床夹紧 / 润滑系统、夹具动力单元、模具液压站。
- 测试设备:液压试验台、压力 / 流量标定系统、微型测试平台。
- 车辆与工程机械:微型叉车、滑移装载机辅助系统、农机精准控制。
- 工业自动化:机器人执行器、气动液压转换装置、小型动力包。
安装与使用要点
- 同轴度:泵与电机联轴器同轴度≤0.05 mm,用弹性联轴器。
- 转向:顺时针(轴端视),禁止反转。
- 吸油:进油配≤25 μm 过滤器,管路短、粗、无漏气;吸高不超过 0.5 m。
- 压力保护:系统必装溢流阀,限制压力≤230 bar。
- 磨合期:空载运行 10 分钟,逐步升压至额定压力。
常见故障与排除
- 流量不足:转速偏低、油粘度过高、内泄增大 → 调转速、换油、检修轴向补偿 / 密封。
- 压力上不去:吸空、密封损坏、溢流阀失效 → 查漏气、换密封、检修溢流阀。
- 噪音大:吸空、同轴度差、轴承磨损 → 检查吸油回路、校正同轴度、换轴承。
- 轴封漏油:密封老化、安装不当、轴磨损 → 更换机械密封、规范安装、修轴。
选型提示
- 按所需流量反算转速(Q=1.1×n÷1000),避免低速脉动或高速过热。
- 优先匹配法兰 / 油口 / 轴型标准,减少改装成本。
- 高温或特殊介质需确认密封材质(可选 FKM/Viton)。
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