SMH120R42E6.7W23三螺杆泵燃油喷射泵人无我有,人有我优,产品寿命长

SMH120R42E6.7W23三螺杆泵燃油喷射泵人无我有,人有我优,产品寿命长
工作原理、结构、特性
三螺杆泵属于回转式容积式泵，其泵送原理为：一个泵体（或三孔衬套）和对称平行布置的三根相互啮合的螺杆精确配合形成连续的相互隔离的密闭腔，当主杆转动时，流体被吸入到密闭腔中，随着主杆转动密闭腔连续、均匀地沿轴向移动，从而带动流体由泵进口腔排送至出口腔，实现泵送升压过程。
三螺杆泵适用于输送各类不含磨蚀性杂质且对泵内零件不发生化学侵蚀的润滑性液体。例如：润滑油，矿物油，合成液压油和**油，其它比较特殊的润滑性介质如轻质燃油，重质燃油，煤焦油，高温沥青，粘胶液，乳化液等也可使用三螺杆泵进行输送。此时，务必参阅相应的产品样本，进行正确选型和使用。
The performance parameter and reliability of three screw pumps depend a greatly extent on the machining accuracy of manufacturing devices. CTP have got leading manufacturing level of the whole industry in china and advanced machining methods. The company have bought more than 20 sets of advanced machines abroad, such as screw rotor CNC grinding machine and high-accuracy screw three-dimensional testing instrument from Germany, which represent advanced machining lever of screw rotor, high efficient and high-accuracy screw machining milling machine and machining and detecting machines for screw milling cutter from Britain, high-accuracy inner-rotor CNC milling machine for lengthening screw from Austria, optic projector from Italy, machining center capable of various complicated technical process from Germany and Italy, universal tool microscope and measuring machine from Japan, deep hole drilling machine from Germany, large-size CNC turning machining center from Germany etc. Besides, there are also high-accuracy coordinate boring machine, optics curve grinding machine, large-size planer-type milling machine etc. CTP’s powerful machining capability in screw rotor can’t be matched by any other screw-pump manufacturers in China. And its machining capability and machining accuracy also have reached international advanced level. Currently CTP have got the ability to machining various screw rotors with different screw lines, whose diameter rang from 10~630mm and length rang from 90~6000mm.
●SM三螺杆泵特点
  1.转子液压平衡，振动小，噪音低。
  2.输出稳定，无脉动。
  3.高效率。
  4.具有很强的自吸能力。
  5.零部件采用通用性强的系列化设计，具有多种安装方式。
  6.结构紧凑，体积小，重量轻，可在较高转速、较高压力下工作。
●SM三螺杆泵输送介质种类
  a. 润滑性液体：如机械油，滑油，重油，渣油
  b. 低润滑性液体：如轻柴油，重柴油，含蜡稀油
  c. 粘性液体：如各种合成橡胶液和人造胶液，乳化液
  d. 根据所输送介质需要还可提供加热或冷却结构。
●SM三螺杆泵应用
 ?在供热设备中用做燃油，燃油供应和输送泵。
 ?在机械工业中用做液压，润滑和摇控马达泵。
 ?在化学石油化工和食品工业中用做装载，输送和供液泵。
 ?在船舶上用做输送、增压、燃油喷射和润滑油泵以及船用液压装置泵。
●SM三螺杆泵(润滑油泵)形式代号
SM	H	210	R	46	E6.7	W21
系列	形式	规格	主杆方向R=右旋,L=左旋	螺旋角	结构特性及轴承与轴封	材料组合
    从驱动端看,若要求泵轴顺时针转动,则选R,逆时针转动选L . Look from the driving end, if you want the pump shaft clockwise, then choose R, choose L counterclockwise rotation.
  1.系列  
系列	主要特征	较大流量(L/min)	规格范围	较大排出压力(Mpa)
SM	中压,单吸,轴向液力平衡	2200	40-2200	10
  4.SM三螺杆泵(润滑油泵)结构特性及轴承,轴封
符号	结构说明	适用范围
U2	内置双列球轴承，填料密封	介质润滑性较差，粘度大温度≤ 150 ℃
K2	外置球轴承，填料密封	介质润滑性较差，粘度大温度≤ 150 ℃
U12.1	内置滚动轴承，轴承由介质润滑机械密封	介质润滑性良好温度≤ 80 ℃
E6.7	外置滚动轴承，可用润滑喷嘴注润滑脂机械密封	介质润滑性较差，工作温度高 T ≤ 150 ℃
E15	外置滚动轴承，可用润滑喷嘴注润滑脂机械密封	介质润滑性较差，工作温度高 T ≤ 200 ℃