馬祖奇MARZOCCHI齒輪泵GHM2-R-20-E1 GHM2-R-9/12/13/16/22/25/30






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GHM2-R-9 是一款外嚙合、固定排量、高壓、單向旋轉(zhuǎn)的齒輪式液壓馬達(dá),專為中高壓、中小扭矩、高轉(zhuǎn)速液壓系統(tǒng)設(shè)計(jì)。
一、型號含義(GHM2-R-9)
- GHM2:產(chǎn)品系列代號(高壓齒輪馬達(dá),第二代結(jié)構(gòu))
- R:結(jié)構(gòu) / 旋轉(zhuǎn)方向(單向順時針旋轉(zhuǎn) Right-handed,標(biāo)準(zhǔn)進(jìn)出油口)
- 9:排量規(guī)格(理論排量 6.4 cc/rev,對應(yīng)系列代號 9)
二、核心技術(shù)參數(shù)
1. 排量與流量
- 理論排量:6.4 cm3/rev (cc/rev)
- 額定轉(zhuǎn)速:1500 rpm(標(biāo)準(zhǔn)工況)
- 理論流量:9.1 L/min(@1500 rpm)
- 轉(zhuǎn)速范圍:500 ~ 4000 rpm(連續(xù))
- 最高轉(zhuǎn)速:4500 rpm(短時)
2. 壓力性能
- 連續(xù)工作壓力:250 bar (25 MPa)
- 峰值壓力:290 bar (29 MPa)
- 連續(xù)背壓:≤ 6 bar(單向)
- 泄油壓力:≤ 1.5 bar(絕對壓力)
3. 扭矩與功率
- 理論扭矩:1.02 Nm/bar(每 bar 壓力產(chǎn)生扭矩)
- 額定扭矩:~ 255 Nm(@250 bar)
- 峰值扭矩:~ 296 Nm(@290 bar)
- 額定功率:~ 40 kW(@250 bar, 1500 rpm)
4. 結(jié)構(gòu)與材質(zhì)
- 結(jié)構(gòu)形式:外嚙合齒輪馬達(dá)(2 齒輪,固定排量)
- 殼體:高強(qiáng)度鋁合金(輕量化)
- 端蓋 / 法蘭:球墨鑄鐵(高壓強(qiáng)度)
- 齒輪 / 軸:滲碳淬火合金鋼(耐磨、高強(qiáng)度)
- 軸承:高壓滾針軸承 + 滑動軸承組合(高承載)
- 密封:氟橡膠 FKM(耐油、耐高溫、長壽命)
- 旋轉(zhuǎn)方向:單向(R = 順時針)
- 安裝法蘭:標(biāo)準(zhǔn)歐洲 / SAE 標(biāo)準(zhǔn)法蘭(通用安裝)
- 軸伸形式:漸開線花鍵 / 圓柱平鍵(標(biāo)準(zhǔn)配置)
- 油口形式:螺紋 / 法蘭(標(biāo)準(zhǔn) G1/2 或 UNF)
- 重量:~ 3.2 kg(標(biāo)準(zhǔn)型)
5. 性能與介質(zhì)
- 容積效率:≥ 93%(額定工況)
- 機(jī)械效率:≥ 90%
- 總效率:≥ 84%
- 適用介質(zhì):礦物液壓油(L-HM32/46/68)、乳化液
- 介質(zhì)粘度:10 ~ 100 mm2/s (cSt)
- 工作溫度:-20℃ ~ +100℃
- 清潔度:NAS 8 級以上(建議≤10μm 過濾)
三、結(jié)構(gòu)特點(diǎn)
- 高壓輕量化:鋁合金殼體 + 鑄鐵端蓋,兼顧強(qiáng)度與重量
- 高效齒輪:精密磨齒、高重合度、低噪音、高效率
- 高壓軸承:組合軸承設(shè)計(jì),承受徑向 / 軸向高壓載荷
- 單向穩(wěn)定:R 型單向旋轉(zhuǎn),結(jié)構(gòu)簡化、可靠性高、壽命長
- 低泄漏:精密配合 + 高壓密封,內(nèi)泄漏小、容積效率高
- 通用接口:標(biāo)準(zhǔn)法蘭 / 油口 / 軸伸,互換性強(qiáng)、易替換
- 抗污染:齒輪結(jié)構(gòu)簡單,抗雜質(zhì)能力優(yōu)于柱塞馬達(dá)
- 高轉(zhuǎn)速:最高 4000+rpm,適配高速液壓驅(qū)動
四、典型應(yīng)用場景
- 工程機(jī)械:小型挖掘機(jī)、裝載機(jī)、叉車的液壓馬達(dá)驅(qū)動
- 農(nóng)業(yè)機(jī)械:收割機(jī)、播種機(jī)、噴霧機(jī)的行走 / 工作機(jī)構(gòu)
- 工業(yè)設(shè)備:機(jī)床液壓系統(tǒng)、注塑機(jī)、液壓夾具、打包機(jī)
- 車輛機(jī)械:環(huán)衛(wèi)車、清障車、高空作業(yè)車的液壓執(zhí)行器
- 船舶設(shè)備:小型船用液壓絞車、艙門啟閉、舵機(jī)驅(qū)動
- 特種機(jī)械:液壓工具、鉆機(jī)、清掃車、卷揚(yáng)機(jī)
五、安裝與使用要點(diǎn)
- 旋轉(zhuǎn)方向:R 為順時針(從軸伸端看),不可反轉(zhuǎn)
- 泄油口:必須單獨(dú)回油箱,保持無壓,禁止接背壓
- 油口連接:嚴(yán)格區(qū)分進(jìn)油口(高壓)、回油口(低壓)
- 潤滑保護(hù):啟動前注油潤滑,避免干磨損壞軸承
- 壓力控制:系統(tǒng)壓力≤250 bar連續(xù)工作,防止過載
- 過濾精度:≤10μm,防止雜質(zhì)磨損齒輪與軸承
六、同系列替代型號
- 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 = 逆時針旋轉(zhuǎn),同排量)
- GHM2A-R-9(A = 加強(qiáng)型,高壓 / 重載)
七、選型提示
- 排量匹配:按流量 / 轉(zhuǎn)速需求選 6.4 cc/rev 排量
- 壓力等級:250 bar連續(xù),適配中高壓系統(tǒng)
- 旋轉(zhuǎn)方向:R = 單向順時針,需反轉(zhuǎn)選 L 型
- 安裝接口:標(biāo)準(zhǔn)SAE / 歐洲法蘭,通用替換性強(qiáng)
- 工況適配:高速中小扭矩場景優(yōu)先,穩(wěn)定可靠
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