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雙螺桿泵的結(jié)構(gòu)特點 |
雙螺桿泵的結(jié)構(gòu)特點
The structural characteristics of twin-screw pump
雙螺桿泵是外嚙合的螺桿泵,它利用相互嚙合,互不接觸的兩根螺桿來抽送液體。
Twin-screw pump is outside the mesh of the screw pump, which uses mutual engagement, and do not touch the two screws for pumping liquids.
雙螺桿泵作為一種容積式泵,泵內(nèi)吸入室應與排出室嚴密地隔開。因此,泵體與螺桿外圓表面及螺桿與螺桿間隙應盡可能小些。同時螺桿與泵體、螺桿與螺桿間又相互形成密封腔,保證密閉,否則就可能有液體從間隙中倒流回去。
Twin-screw pump as a positive displacement pump, pump room exhaust inhalation chamber should be strictly separated. Therefore, the pump with the screw and screw and screw cylindrical surface gap should be as small as possible more. At the same time with the screw pump, screw and screw with each other form a sealed cavity between one another to ensure airtight, otherwise there may be liquid from the gap in the back to go back.
雙螺桿泵可分為內(nèi)置軸承和外置軸承兩種形式。在內(nèi)置軸承的結(jié)構(gòu)型式中軸承由輸送物進行潤滑。外置軸承結(jié)構(gòu)的雙螺桿泵工作腔同軸承是分開的。由于這種泵的結(jié)構(gòu)和螺桿間存在的側(cè)間隙,它可以輸送非潤滑性介質(zhì)。此外,調(diào)整同步齒輪使得螺桿不接觸,同時將輸出扭矩的一半傳給從動螺桿。正如所有螺桿泵一樣,外置軸承式雙螺桿泵也有自吸能力,而且多數(shù)泵輸送元件本身都是雙吸對稱布置,可消除軸向力,也有很大的吸高。Twin-screw pump can be divided into internal and external bearing bearing two forms. In the built-bearing structure type of bearing material from the conveyor lubrication. External bearing structure, twin-screw pump working chamber with the bearings are separated. Because of this structure and the screw pump exist between the side gap, which can transport non-lubricating medium. In addition, the adjustment screw is not synchronized gear makes contact, at the same time pass on half of the output torque driven screw. As with all the same screw pump, external bearing type twin-screw pump is also self-priming capability, but the majority of pump delivery components are themselves double-suction symmetrical layout to eliminate the axial force, but also a great high suction.
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