The invention discloses a pure electric power steering gear for a heavy commercial vehicle. The pure electric power steering gear comprises an electric control steering unit and a roller screw type mechanical steering gear; the roller screw type mechanical steering gear comprises a screw transmission pair composed of a screw, a nut, a roller, an inner gear ring, a planet carrier and a check ring,the two ends of the screw on the screw transmission pair are supported and fixed in the shell of the roller screw type mechanical steering gear through bearings, one end of a steering arm shaft is meshed with the nut through a gear, and the other end of the steering arm shaft is connected with the output end of the steering gear to transmit torque; the electric control steering unit is connected with the shell of the roller screw type mechanical steering gear through a valve body by using a bolt; a worm wheel shaft of the electric control steering unit is in rigid connection with a lead screwof the screw transmission pair through a spline to transmit torque. A hydraulic power assisting system is omitted, and the whole device is convenient to install, compact in structure and accurate in control.

    一种重型商用车用的纯电动助力转向器,包括电控转向单元、滚柱丝杠式机械转向器;滚柱丝杠式机械转向器,包括由丝杠、螺母、滚柱、内齿圈、行星架、挡圈组成的丝杠传动副,丝杠传动副上的丝杠两端用轴承支撑固定在滚柱丝杠式机械转向器的壳体内,转向臂轴一端通过齿轮与螺母啮合,另一端连接转向器输出端传输力矩;电控转向单元通过阀体与滚柱丝杠式机械转向器壳体用螺栓连接;电控转向单元的蜗轮轴与丝杠传动副的丝杠通过花键刚性连接,传递扭矩。本发明取消了液压助力系统,整个装置安装方便、结构紧凑、操控精准。


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    Titel :

    Pure electric power steering gear for heavy commercial vehicle


    Weitere Titelangaben:

    一种重型商用车用纯电动助力转向器


    Beteiligte:
    LI XIAOMING (Autor:in) / KONG ZHENBIN (Autor:in) / HOU XUEWEI (Autor:in) / WANG MINGZHU (Autor:in) / PENG WEIJUN (Autor:in)

    Erscheinungsdatum :

    2021-03-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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