The invention provides a plunger pump which comprises a fluid end assembly used for sucking in liquid and discharging the liquid after pressurizing the liquid through a plunger; and the power end assembly comprises a crankshaft box body, a crosshead box body and a spacing frame which are connected in sequence. A rotatable crankshaft is arranged in the crankshaft box body, one end of the crankshaft receives power input, and the other end of the crankshaft is connected to the plunger through the crosshead box body and the spacing frame. A first side of the spacer frame is connected to the crosshead box, and a second side of the spacer frame opposite to the first side is connected to the fluid end assembly. The power end assembly is provided with a structure capable of reducing vibration of the plunger pump. The invention further provides an electrically-driven fracturing semitrailer which comprises the plunger pump, a motor for providing power input for the power end assembly of the plunger pump, a power supply unit for providing power for the motor and a semitrailer body. The power supply unit, the motor and the plunger pump are integrated on the semi-trailer body. Vibration of the whole pump is reduced by improving the structural strength and the supporting strength of the plunger pump.

    本发明提供一种柱塞泵,其包括:液力端总成,用于吸入液体且通过柱塞将液体加压后排出;和动力端总成,包括依次连接的曲轴箱体、十字头箱体和间隔架。在曲轴箱体内设有可转动的曲轴,曲轴的一端接收动力输入,曲轴的另一端经由十字头箱体和间隔架连接至柱塞。间隔架的第一侧连接至十字头箱体,间隔架的与第一侧相反的第二侧连接至液力端总成。所述动力端总成具有能够减少柱塞泵的振动的结构。本发明还提供一种电驱压裂半挂车,其包括上述柱塞泵、向柱塞泵的动力端总成提供动力输入的电动机、向电动机提供电力的供电单元、以及半挂车体。供电单元、电动机和柱塞泵集成在半挂车体上。本发明通过提高柱塞泵的结构强度和支撑强度来减少整泵振动。


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    Title :

    Plunger pump and electrically-driven fracturing semitrailer


    Additional title:

    柱塞泵和电驱压裂半挂车


    Contributors:
    CUI SHUZHEN (author) / ZHANG RIKUI (author) / CHANG SHENG (author)

    Publication date :

    2023-07-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS / B62D MOTOR VEHICLES , Motorfahrzeuge / E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren



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