The invention provides a two-gear speed change bridge driving system which comprises a motor (E), a synchronizer (10), two joint gear rings, a planetary gear set (30) and a first shaft (S10), a rotor of the motor (E) and the first shaft (S10) transmit torque to each other, the synchronizer (10) comprises a sliding sleeve (11) and a gear hub (12), the sliding sleeve (11) enables the gear hub (12) to be selectively connected with the first joint gear ring (21) or the second joint gear ring (22) in an anti-torque mode, and the planetary gear set (30) is connected with the first joint gear ring (21) or the second joint gear ring (22) in an anti-torque mode. The gear hub (12) is used for transmitting a torque to the differential (D), the first engagement ring gear (21) is connected to the first shaft (S10) in a rotationally fixed manner, the second engagement ring gear (22) is connected to a planet carrier (33) of the planetary gear set (30) in a rotationally fixed manner, the first shaft (S10) is further connected to a sun gear (31) of the planetary gear set (30) in a rotationally fixed manner, and a ring gear (34) of the planetary gear set (30) is fixed. The bridge driving system is compact in structure, small in occupied space and capable of achieving two-gear speed change.

    本发明提供一种两挡变速的电桥驱动系统,其包括电机(E)、同步器(10)、两个接合齿圈、行星齿轮组(30)和第一轴(S10),电机(E)的转子与第一轴(S10)彼此传递扭矩,同步器(10)包括滑套(11)和齿毂(12),滑套(11)能使齿毂(12)选择性地与第一接合齿圈(21)或第二接合齿圈(22)抗扭地连接,齿毂(12)用于将扭矩传递给差速器(D),第一接合齿圈(21)与第一轴(S10)抗扭地连接,第二接合齿圈(22)与行星齿轮组(30)的行星架(33)抗扭地连接,第一轴(S10)还与行星齿轮组(30)的太阳轮(31)抗扭地连接,行星齿轮组(30)的齿圈(34)固定。根据本发明的电桥驱动系统结构紧凑、占用空间小且能实现两挡变速。


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    Title :

    Two-gear variable-speed bridge driving system


    Additional title:

    两挡变速的电桥驱动系统


    Contributors:
    LI NA (author) / ZHANG REN (author) / TANG QING (author) / CAO DEYI (author)

    Publication date :

    2022-03-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / F16H Getriebe , GEARING / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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