意大利Marzocchi马祖奇双联齿轮泵GHPA2-D-6+GHPP2-D-6 GHP1A-D-6






ALP1A-D-11,ALP1A-D-11-FG,ALP1A-D-13,ALP1A-D-13-FG,ALP1A-D-16,ALP1A-D-16-FG,ALP1A-D-2,ALP1A-D-20,ALP1A-D-20-FG,ALP1A-D-2-FG,ALP1A-D-3,ALP1A-D-3-FG,ALP1A-D-4,ALP1A-D-4-FG,ALP1A-D-5,ALP1A-D-5-FG,ALP1A-D-6,ALP1A-D-6-FG,ALP1A-D-7,ALP1A-D-7-FG,ALP1A-D-9,ALP1A-D-9-FG,ALP1-D-11,ALP1-D-11-FG,ALP1-D-13,ALP1-D-13-FG,ALP1-D-16,ALP1-D-16-FG,ALP1-D-2,ALP1-D-20,ALP1-D-20-FG,ALP1-D-2-FG,ALP1-D-3,ALP1-D-3-FG,ALP1-D-4,ALP1-D-4-FG,ALP1-D-5,ALP1-D-5-FG,ALP1-D-6,ALP1-D-6-FG,ALP1-D-7,ALP1-D-7-FG,ALP1-D-9,ALP1-D-9-FG,ALP2A-D-10,ALP2A-D-10-FG,ALP2A-D-12,ALP2A-D-12-FG,ALP2A-D-13,ALP2A-D-13-FG,ALP2A-D-16,ALP2A-D-16-FG,ALP2A-D-20,ALP2A-D-20-FG,ALP2A-D-22,ALP2A-D-22-FG,ALP2A-D-25,ALP2A-D-25-FG,ALP2A-D-30,ALP2A-D-30-FG,ALP2A-D-34,ALP2A-D-34-FG,ALP2A-D-37,ALP2A-D-37-FG,ALP2A-D-40,ALP2A-D-40-FG,ALP2A-D-50,ALP2A-D-50-FG,ALP2A-D-6,ALP2A-D-6-FG,ALP2A-D-9,ALP2A-D-9-FG,ALP2-D-10,ALP2-D-10-FG,ALP2-D-12,ALP2-D-12-FG,ALP2-D-13,ALP2-D-13-FG,ALP2-D-16,ALP2-D-16-FG,ALP2-D-20,ALP2-D-20-FG,ALP2-D-22,ALP2-D-22-FG,ALP2-D-25,ALP2-D-25-FG,ALP2-D-30,ALP2-D-30-FG,ALP2-D-34,ALP2-D-34-FG,ALP2-D-37,ALP2-D-37-FG,ALP2-D-40,ALP2-D-40-FG,ALP2-D-50,ALP2-D-50-FG,ALP2-D-6,ALP2-D-6-FG,ALP2-D-9,ALP2-D-9-FG,ALP3A-D-110,ALP3A-D-120,ALP3A-D-135,ALP3A-D-30,ALP3A-D-33,ALP3A-D-40,ALP3A-D-50,ALP3A-D-60,ALP3A-D-66,ALP3A-D-80,ALP3A-D-94,ALP3-D-110,ALP3-D-120,ALP3-D-135,ALP3-D-30,ALP3-D-33,ALP3-D-40,ALP3-D-50,ALP3-D-60,ALP3-D-66,ALP3-D-80,ALP3-D-94,GHP1A2-D-11,GHP1A2-D-13,GHP1A2-D-16,GHP1A2-D-2,GHP1A2-D-20,GHP1A2-D-3,GHP1A2-D-4,GHP1A2-D-5,GHP1A2-D-6,GHP1A2-D-7,GHP1A2-D-9,GHP1A-D-11,GHP1A-D-11-RA,GHP1A-D-13,GHP1A-D-13-RA,GHP1A-D-16,GHP1A-D-16-RA,GHP1A-D-20,GHP1A-D-20-RA,GHP1A-D-2-RA,GHP1A-D-3,GHP1A-D-3-RA,GHP1A-D-4,GHP1A-D-4-RA,GHP1A-D-5,GHP1A-D-5-RA,GHP1A-D-6,GHP1A-D-6-RA,GHP1A-D-7,GHP1A-D-7-RA,GHP1A-D-9,GHP1AQ-D-11,GHP1AQ-D-13,GHP1AQ-D-16,GHP1AQ-D-2,GHP1AQ-D-20,GHP1AQ-D-3,GHP1AQ-D-4,GHP1AQ-D-5,GHP1AQ-D-6,GHP1AQ-D-7,GHP1AQ-D-9,GHP1-D-11,GHP1-D-11-RA,GHP1-D-13,GHP1-D-13-RA,GHP1-D-16,GHP1-D-16-RA,GHP1-D-2,GHP1-D-20,GHP1-D-20-RA,GHP1-D-2-RA,GHP1-D-3,GHP1-D-3-RA,GHP1-D-4,GHP1-D-4-RA,GHP1-D-5,GHP1-D-5-RA,GHP1-D-6,GHP1-D-6-RA,GHP1-D-7,GHP1-D-7-RA,GHP1-D-9,GHP2A3-D-10,GHP2A3-D-12,GHP2A3-D-13,GHP2A3-D-16,GHP2A3-D-20,GHP2A3-D-22,GHP2A3-D-25,GHP2A3-D-30,GHP2A3-D-34,GHP2A3-D-37,GHP2A3-D-40,GHP2A3-D-50,GHP2A3-D-6,GHP2A3-D-9,GHP2A-D-10,GHP2A-D-10-FG,GHP2A-D-10-KA,GHP2A-D-12,GHP2A-D-12-KA,GHP2A-D-13,GHP2A-D-13-FG,GHP2A-D-13-KA,GHP2A-D-16,GHP2A-D-16-FG,GHP2A-D-16-KA,GHP2A-D-20,GHP2A-D-20-FG,GHP2A-D-20-KA,GHP2A-D-22,GHP2A-D-22-FG,GHP2A-D-22-KA,GHP2A-D-25,GHP2A-D-25-FG,GHP2A-D-25-KA,GHP2A-D-30,GHP2A-D-30-FG,GHP2A-D-34,GHP2A-D-34-FG,GHP2A-D-37,GHP2A-D-40,GHP2A-D-40-FG,GHP2A-D-50,GHP2A-D-50-FG,GHP2A-D-6,GHP2A-D-6-FG,GHP2A-D-6-KA,GHP2A-D-9,GHP2A-D-9-FG,GHP2A-D-9-KA,GHP2-D-10,GHP2-D-12,GHP2-D-13,GHP2-D-16,GHP2-D-20,GHP2-D-22,GHP2-D-25,GHP2-D-30,GHP2-D-34,GHP2-D-37,GHP2-D-40,GHP2-D-50,GHP2-D-6,GHP2-D-9,GHP3A2-D-110,GHP3A2-D-120,GHP3A2-D-135,GHP3A2-D-30,GHP3A2-D-33,GHP3A2-D-40,GHP3A2-D-50,GHP3A2-D-60,GHP3A2-D-66,GHP3A2-D-80,GHP3A2-D-94,GHP3A-D-110,GHP3A-D-110-FG,GHP3A-D-120,GHP3A-D-120-FG,GHP3A-D-135,GHP3A-D-135-FG,GHP3A-D-30,GHP3A-D-30-FG,GHP3A-D-33,GHP3A-D-33-FG,GHP3A-D-40,GHP3A-D-40-FG,GHP3A-D-50,GHP3A-D-50-FG,GHP3A-D-60,GHP3A-D-60-FG,GHP3A-D-66,GHP3A-D-66-FG,GHP3A-D-80,GHP3A-D-80-FG,GHP3A-D-94,GHP3A-D-94-FG,GHP3-D-110,GHP3-D-120,GHP3-D-135,GHP3-D-30,GHP3-D-33,GHP3-D-40,GHP3-D-50,GHP3-D-60,GHP3-D-66,GHP3-D-80,GHP3-D-94
GHPA2-D-6 是一款 小排量、超高压、外啮合定量齿轮泵,专为 中高压精密液压系统 设计,结构紧凑、效率高、抗污染能力强,常用于工业机械、小型动力单元及双回路液压系统。
一、型号完整释义
GHPA2 - D - 6
- GHPA2:产品系列 — 高压双联泵前泵系列(2A 尺寸组)
- D:安装形式 — 标准 4 螺栓法兰安装(SAE A 标准)
- 6:规格代码 — 对应理论排量 4.5 cm³/rev (mL/rev)(非直接排量值)
二、核心技术参数
- 理论排量:4.5 mL/rev (cc/rev)
- 压力等级连续工作压力 (P1):28.0 MPa (280 bar)间歇工作压力 (P2):29.5 MPa (295 bar)峰值压力 (P3):31.0 MPa (310 bar)
- 转速范围最低转速:600 rpm额定转速:1500–3000 rpm最高转速:4000 rpm
- 理论流量@1500 rpm:6.4 L/min@3000 rpm:12.8 L/min
- 容积效率:≥93%(额定压力、1500 rpm)
- 机械效率:≥90%
- 适用介质:矿物型液压油(L-HM32/46/68)、合成液压油
- 油液粘度:15–60 mm²/s (cSt),最佳 25–40 mm²/s
- 温度范围:-20°C 至 +80°C(密封 NBR);可选高温至 120°C
- 材质泵体:高强度铝合金(压铸,轻量化、散热佳)法兰 / 端盖:球墨铸铁(高压承载)齿轮 / 轴:渗碳淬火合金钢(HRC 58–62,耐磨、高精度)轴承 / 轴套:粉末冶金 + 高磷青铜(自润滑、高压)密封:机械密封 (G 型) + 骨架油封(耐高压、防泄漏)
- 安装:SAE A 4 螺栓法兰
- 轴伸:平键轴(标准直径)
- 油口:进 / 出油 G3/8" 或 SAE #8 / #10(内螺纹)
- 重量:≈1.2 kg
三、结构与工作原理
1. 核心结构
- 铝合金泵体 + 铸铁端盖:高压强度与轻量化结合
- 高精度齿轮副:渐开线齿形,低脉动、低噪音、高效率
- 轴向间隙自动补偿:浮动轴套 / 侧板设计,高压下自动补偿磨损,维持高效率
- 双重轴封:机械密封主密封,骨架油封辅助防漏
- 法兰定位:高刚性安装,保证同轴度
2. 工作原理
- 吸油:齿轮旋转,吸油腔容积增大形成真空,油液进入齿槽
- 压油:齿轮啮合,压油腔容积减小,油液被挤压输出,建立高压
- 定量特性:排量固定,流量与转速严格成正比(Q = 排量 × 转速 ÷ 1000)
四、性能特点
- 超高压小排量:280 bar 连续压力,4.5 cc 小排量,精准高压供油
- 高效持久:轴向补偿设计,容积效率≥93%,寿命长
- 低噪低脉动:精密齿轮、缓冲油口,噪音 ≤72 dB(A)
- 结构紧凑:铝合金 + 铸铁组合,重量轻、安装空间小
- 互换性强:标准法兰 / 油口 / 轴伸,可与同系列泵直接替换
- 双联组合:可与 GHPP2 系列后泵串联成双联泵,实现双路独立供油
五、典型应用场景
- 工业机械:注塑机、液压夹具、机床润滑 / 夹紧系统
- 小型动力单元:高空作业平台、升降平台、小型液压站
- 工程机械:微型挖掘机、滑移装载机辅助液压系统
- 车辆液压:叉车转向 / 起升双回路、自卸车液压系统
- 农业机械:拖拉机液压提升、播种机精准控制
- 测试设备:液压试验台、压力测控系统
六、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
- 压力保护:系统必须装溢流阀,限制压力 ≤280 bar
- 排气:启动前注油、手动盘轴,排除空气
- 磨合期:空载运行 10 分钟,逐步升压至额定
七、常见故障与排除
- 压力不足:进油漏气、过滤器堵、密封损坏、轴向补偿失效 → 查漏气、换滤芯、检修密封 / 补偿机构
- 流量偏低:转速过低、油粘度过高、内泄增大 → 调转速、换油、检修磨损件
- 噪音 / 振动大:吸空、同轴度差、轴承坏 → 查吸油、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
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