(RA2FE)進口插裝式定量馬達 產品特點 Product features

采用斜軸式設計的軸向錐形柱塞，可用于開式回路和閉式回路中的靜液壓傳動retz品牌  The axial conical plunger with inclined shaft design can be used for hydrostatic transmission in open circuit and closed circuit

規格28-180  Size 28-180

額定壓力350bar，最高壓力∶400bar  Rated pressure 350bar, maximum pressure: 400bar

直接插裝入齒輪變速箱中，節省安裝空間  It is directly inserted into the gear box to save installation space

較高的轉速,扭矩輸出較大 Higher speed, larger torque output

較大的功率重量比,具有高的總效率  High power to weight ratio and high overall efficiency

易于安裝，僅需插入至機械齒輪箱中即可 Easy to install, just insert into the mechanical gearbox

性能參數 performance parameter

(RA2FE)進口插裝式定量馬達 技術參數technical parameter

關于選擇液壓油的詳細信息  Details about selecting hydraulic oil

要正確地選擇液壓油，需要知道與環境溫度相關的工作溫度∶閉式回路中的油路溫度、開式回路中的油箱溫度。選擇液壓油時，工作溫度范圍內的工作粘度應處于最佳范圍內。我們建議在所有情況下都應選擇較高的粘度等級。To select hydraulic oil correctly, it is necessary to know the working temperature related to the ambient temperature: the oil circuit temperature in the closed circuit and the oil tank temperature in the open circuit. When selecting hydraulic oil, the working viscosity within the working temperature range should be in the best range. We recommend choosing a higher viscosity grade in all cases.

注意 be careful

殼體泄油溫度（受壓力和速度的影響）可能高于油路溫度或油箱溫度。但部件任何部位的溫度均不可高于15℃。在確定軸承處液壓油粘度時，應將下面指定的溫差考慮在內。The oil drain temperature of the housing (affected by pressure and speed) may be higher than the oil circuit temperature or the oil tank temperature. However, the temperature of any part of the component shall not be higher than 15 ℃. When determining the viscosity of hydraulic oil at the bearing, the temperature difference specified below should be taken into account.

液壓油的過濾 Filtration of hydraulic oil

更精細的過濾可以提高液壓油的清潔度，從而延長軸向柱塞單元的使用壽命。Finer filtration can improve the cleanliness of the hydraulic oil, thereby extending the service life of the axial piston unit

為了確保軸向柱塞單元的功能可靠性，必須對液壓油進行測量總量分析，以確定固體污染物的數量，并判斷其清潔度是否符合ISO 4406標準的要求。清潔度至少應維持在20/18/15級。In order to ensure the functional reliability of the axial piston unit, the hydraulic oil must be measured and analyzed to determine the amount of solid pollutants and judge whether its cleanliness meets the requirements of ISO 4406 standard. Cleanliness should be maintained at least at grade 20/18/15

當液壓油溫度非常高（90℃至最高115℃）時，清潔度至少應達到ISO4406標準的19/17/14級。When the hydraulic oil temperature is very high (90 ℃ to 115 ℃), the cleanliness should at least reach 19/17/14 level of ISO4406 standard

軸封 Shaft seal

允許的壓力負載 Allowable pressure load

軸封的使用壽命受軸向柱塞單元轉速和殼體泄油壓力（外殼壓力）的影響。外殼和環境壓力的平均壓差為2bar，在正常的工作溫度下不會持續超過該值。瞬時壓力峰值（t<0.1s）最高允許用值為10 bar。軸封的使用壽命會隨壓力峰值出現頻率的增加而縮短。外殼壓力必須等于或高于環境壓力。The service life of the shaft seal is affected by the rotating speed of the axial plunger unit and the oil drain pressure of the housing (housing pressure). The average pressure difference between the shell and the ambient pressure is 2bar, which will not be continuously exceeded under normal operating temperature. The maximum allowable value of instantaneous pressure peak (t<0.1s) is 10 bar. The service life of the shaft seal will be shortened with the increase of the frequency of pressure peak. The enclosure pressure must be equal to or higher than the ambient pressure.

溫度范圍 temperature range

FKM軸封可在殼體泄油溫度為-25℃至+115℃的條件下使用 FKM shaft seal can be used when the oil drain temperature of the shell is -25 ℃ to +115 ℃

注意 be careful

對于-25℃以下的應用情況，需要使用NBR軸封（允許溫度范圍∶-40℃至+90℃）For applications below -25 ℃, NBR shaft seals are required (allowable temperature range: -40 ℃ to +90 ℃)