过去，异步感应电动机的主要缺陷是难于变速。
In the past, the main disadvantage of asynchronous induction motors was the difficulty of varying their speed.
电动机不需要齿轮变速箱，因此可以减轻重量和机械复杂性。
Electric motors do not need a gearbox, which reduces weight and mechanical complexity.
现代在一部2.4升169马力的汽油发动机和一具六档自动变速箱之间装备了一部30千瓦的电动机。
Hyundai USES a 30-kilowatt electric motor between the 169-horsepower, 2.4-liter gasoline engine and a six-speed automatic transmission.
更令人惊叹的是，这个感应电动机转速能达到每分钟6000转并且能产生最高为295磅英尺（400牛顿米）的扭矩，也就是说传统的变速器的作用将减少。
More impressively, the motor’s 295lb-ft (400 newton-metres) of torque is available from rest to nearly 6, 000 revolutions per minute, which eliminates the need for a conventional gearbox.
更令人惊叹的是，这个感应电动机转速能达到每分钟6000转并且能产生最高为295磅英尺（400牛顿米）的扭矩，也就是说传统的变速器的作用将减少。
More impressively, the motor's 295lb-ft (400 newton-metres) of torque is available from rest to nearly 6,000 revolutions per minute, which eliminates the need for a conventional gearbox.
该电动机将与变速器相连，它可以有效替代包括交流发电机和起动机等设备。
The motor will be integrated in the transmission housing, and it effectively replaces drag inducing auxiliary components such as the alternator and starter.
小型肥料制粒机主要由电动机、制粒圆盘、变速箱、底架、主轴轴承、调节装置和转速测试系统等组成。
Small-scale fertilizer granulator is mainly composed by motor, making grains disc, gearbox, underbed, main shaft bearing, regulate device and rotational speed test system, etc.
设计的凸轮控制器可实现对AC伺服电动机进行分段变速控制以及凸轮一周中的两通两断的控制功能。
The cam controller allows the AC servo motor to run at different speed for different angles, and to turn on and turn off twi.
电动机与变速齿轮箱相连，使电动机的旋转运动转化为座椅的直线运动。
The motors are coupled to transmission gear-boxes that change rotating motion form the motor into linear motion for the seats.
以变速驱动压力机的工作负荷、运动特点、工作总功、力矩和角动量为基础，计算其驱动电动机所需的功率。
And then the power of servo motor is calculated according to crank press working load, kinematical characteristic, torque and rotational momentum.
动力与传动装置：各种类型电动机、减速机，变速机、电梯主机，保护装置，电控系统等。
Power and Gearing device: Various kinds of motor, reducer, variable-speed motor, lift machine, protection device, and electronic control system etc.
该系统由变速驱动控制器、电动机、发电机、逆变器及微机组成。
This system is composed of variable velocity driver, motor, generator, inverter and computer.
然而，一个基于感应电动机的变速传动装置在慢慢的被引进。
However, a variable speed drive based on induction motors is slowly introduced.
本电动机结构紧凑，用在变速传动或多工位传动的机械设备中可简化机械传动系统的结构。
The motor has compact structure and can simplify the structure of a machinery drive system when being used in change drive or multi-position drive machinery.
内装转换开关，用于电流60A以下的电气线路中，作为电源引入开关，并可控制电动机起动变速停止换向等。
Inside installed selector switch, can be used in the circuit below60A as power lead-in switch, and the switch cab control motorstart, change speed, stop, and commutation.
电动机的动力通过皮带传送给变速箱，经变速箱降速增扭后，将动力传给制粒圆盘主轴，带动制粒圆盘旋转。
Power of motor is convected to gearbox through belt, and after slowdown and increase torsion, the power is passed to the main shaft of the disc and drive it to rotate.
针对这一问题，提出采用变频调速装置对油田注水泵用电动机进行变速调节，以达到节能降耗的目的。
It is proposed to adopt variable frequency regulators regulating oilfield water injection pumps so as to reach the target of energy-saving.
无刷直流电动机作为一种新型的无级变速电机，具有结构简单，制造方便，不需要经常性维护等优点，是一种现想的变速电机。
Brushless DC motor as a new variable speed motor, has a simple structure, manufacture, do not need regular maintenance, a variable speed motor would.
无刷直流电动机作为一种新型的无级变速电机，具有结构简单，制造方便，不需要经常性维护等优点，是一种现想的变速电机。
Brushless DC motor as a new variable speed motor, has a simple structure, manufacture, do not need regular maintenance, a variable speed motor would.
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