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Eaton‑Vickers PVH 系列变量轴向柱塞泵(PVH057/063/074/081/098/106/131/141)
核心定位:伊顿威格士(Eaton Vickers)开式回路直轴式高压重载变量柱塞泵,覆盖57–141 cm³/rev全排量段,主打高功率密度、抗冲击、长寿命、多控制,是工程机械与重型工业液压系统的主流主泵。
一、系列总览与核心参数
1. 基本定位
- 结构:直轴斜盘式、开式回路、变量轴向柱塞泵
- 排量:57、63、74、81、98、106、131、141 cm³/rev(型号数字即标称排量)
- 压力:连续280 bar(4000 psi),峰值350 bar(5075 psi)
- 转速:最高3600 rpm,推荐1800–2800 rpm
- 效率:容积效率94%–96%,机械效率高,节能显著
- 噪音:68–75 dBA,重载工况下噪音控制优异
2. 各型号核心参数速览
| 型号 | 标称排量(cm³/rev) | 连续压力(bar) | 峰值压力(bar) | 最高转速(rpm) | 典型功率(kW) |
|:--- |:--- |:--- |:--- |:--- |:--- |
| PVH057 | 57 | 280 | 350 | 3600 | 22 |
| PVH063 | 63 | 280 | 350 | 3600 | 24 |
| PVH074 | 74 | 280 | 350 | 3600 | 28 |
| PVH081 | 81 | 280 | 350 | 3600 | 31 |
| PVH098 | 98 | 280 | 350 | 3600 | 37 |
| PVH106 | 106 | 280 | 350 | 3600 | 40 |
| PVH131 | 131 | 280 | 350 | 3200 | 49 |
| PVH141 | 141 | 280 | 350 | 3200 | 53 |
二、型号编码规则(示例:PVH098R13AF30B25200000200)
1. PVH:系列代号(变量轴向柱塞泵)
2. 098:标称排量(cm³/rev)
3. R:旋向(R=顺时针,L=逆时针)
4. 13:轴伸规格(13=标准花键)
5. AF:控制方式(AF=电比例负载敏感;RCF=压力补偿;RBM=负载敏感)
6. 30:压力等级(30=350 bar峰值)
7. B25:油口形式/安装法兰
8. 200000200:密封/介质/特殊配置
三、核心技术与优势
1. 结构设计亮点
- 直轴斜盘式:刚性好、抗冲击、响应快,适配频繁换向与重载冲击工况
- 双金属配流盘:耐磨、抗咬合、低泄漏,长期保持高效率
- 重型轴承+刚性轴:B10寿命长,允许高压力与高转速连续运行
- 通轴驱动:可串联多泵/马达,实现多回路与紧凑布局
- 模块化控制:控制芯可快速更换,适配不同系统需求
2. 控制方式(全系列兼容)
- 压力补偿(RCF):恒压控制,节能、稳定系统压力
- 负载敏感(RBM):按需供流,大幅降低能耗与发热
- 电比例控制(AF/EF):远程/电控调节,适配自动化与智能系统
- 功率限制(PC):保护发动机/电机,防止过载
- 远程控制:支持外置阀/手柄调节,适配移动机械
3. 核心优势
- 重载抗冲击:专为工程机械/矿山设计,耐受频繁压力冲击
- 高功率密度:体积小、重量轻,输出功率大,节省安装空间
- 长寿命低维护:标准化部件、易检修,降低全生命周期成本
- 宽介质适配:兼容矿物油、合成油、抗燃液压油,粘度10–100 cSt
- 低噪音:优化流道与旋转件,噪音低于同级别竞品
四、典型应用场景
1. 工程机械(主泵首选)
- 挖掘机、装载机、起重机、压路机、摊铺机、混凝土泵车
- 特点:高压、大流量、频繁换向、抗冲击、长寿命
2. 重型工业设备
- 大型注塑机(锁模/射胶)、压铸机、橡胶机械
- 冶金轧机、矿山机械、锻压设备、船舶甲板机械
- 特点:连续高压、高功率、节能、低噪音
3. 能源与交通
- 风电偏航/变桨、铁路机车液压系统、港口机械
- 特点:高可靠性、长寿命、适配恶劣环境
五、选型关键要点
1. 排量匹配:按系统最大流量需求选排量,结合转速计算实际流量(流量=排量×转速×效率)
2. 压力等级:系统工作压力≤280 bar,峰值≤350 bar
3. 控制方式:
- 节能优先:选负载敏感(RBM)
- 恒压稳定:选压力补偿(RCF)
- 自动化/电控:选电比例(AF)
4. 安装与接口:确认法兰(SAE/ISO)、油口方向、轴伸(花键/直轴)、旋向
5. 介质与环境:明确液压油类型、温度范围、污染等级
六、与同品牌系列对比
| 系列 | 排量(cm³/rev) | 连续压力(bar) | 核心定位 | 优势 | 应用 |
|:--- |:--- |:--- |:--- |:--- |:--- |
| PVH | 57–141 | 280 | 高压重载 | 抗冲击、长寿命、多控制 | 工程机械、矿山、重型工业 |
| PVM | 18–141 | 280 | 中高压精密 | 低噪音、轻量化、快响应 | 注塑机、自动化、精密机床 |
| PVQ | 10–45 | 210 | 中低压通用 | 紧凑、低成本、易维护 | 小型工业、机床、辅助系统 |
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