电机驱动的

Through functional analysis, the design of a stepper motor as the executing agency of the power source, through the stepper motor to drive the clutch of positive and have positive and negative-driven torque, the use of Extraction change for the stepper motor torque output , The use of torque sensors and angular displacement sensors to measure vehicle-borne by the driven clutch of torque.

通过功能分析，该设计采用步进电机作为执行机构的动力源，通过步进电机的正反转来驱动离合器从动盘产生正反扭矩，使用减数器改变步进电机输出的扭矩，使用扭矩传感器和角位移传感器来测量汽车离合器从动盘所承受的扭矩。

By considering torque characteristics of variable-frequency motors and mesh stiffness as well as backlash nonlinearity in gear transmission,a dynamics model for the cutting system of shield tunneling machine with redundant drives was established. The fluctuation characteristics of torque loads and dynamic cutterhead driving torque in composite strata were analyzed.

复合地层掘进扭矩载荷突变是造成盾构机掘进过程中堵转停机的直接原因，考虑盾构机刀盘驱动变频调速电机特性、转矩传递过程中齿轮啮合刚度及齿侧间隙等非线性因素，建立冗余驱动的盾构机刀盘切削系统机电耦合动力学模型；针对典型复合地层地质条件，对盾构机在上软下硬地层掘进过程中刀盘驱动转矩动态特性进行仿真分析。

First, the dissertation summarizes the properties, developing state and application fields of BLDCM, then its fundmental structure; operation principle and control strategy is also presented. On the base of roundly analyzing all kinds of the drive motor in electromotion type railway switch, BLDCM is proposed to replace the formerly traditional DC motor in railway switch. Second, the whole design scheme and key technology of control system is put forward based on analyse of the technical parameters and requirements.

首先，论文介绍了无刷直流电动机的特点、发展和应用概况，分析了稀土永磁无刷直流电机系统的基本构成、工作原理和控制方法；在对目前各种电动转辙机驱动电机分析的基础上，提出将稀土永磁无刷直流电机用于铁路转辙机，以替换原有的串励有刷直流电动机。

Permanent magnet synchronous motor driven by triphase sinusoidal current is research object in this paper. On the basis of analysis of the structure, movement principle and math model of PMSM, Fundamental theories and structure of the system of PMSM alternating current servo systems based on DTC are discussed. Then Simulation models of traditional PMSM DTC and PMSM DTC based on vectors subdivision are established separately.

本文以三相正弦波驱动的永磁同步电机为研究对象，在分析永磁同步电机结构及数学模型的基础上，系统阐述了基于直接转矩控制的永磁同步电机交流伺服系统的基本原理和系统构成，并在MATLAB仿真环境下分别建立了传统直接转矩控制和基于矢量细分算法的直接转矩控制系统的仿真模型。

Permanent magnet synchronous motor drived by triphase sinusoidal current is research object in this paper. Its mathematics models are set up and the different control menthods are discussed, controlling Principles of flux linkage and torque are discussed under DTC and the block diagram of PMSM with DTC is Presented. At last the control mothod is proved correct using MATLAB simulation software.

文章以二相正弦波驱动的永磁同步电机为研究对象，建立了永磁同步电机的数学模型，对于不同的控制策略进行了对比分析，并深入探讨直接转矩控制中永磁同步电机的磁链和转矩的控制思想，给出控制方案，最后利用MATLAB仿真工具验证了控制方案的正确性。

The invention discloses a support device for an air conditioning faceplate, which is arranged between a front faceplate of a suction inlet of a suspender air conditioning and an air conditioning casing, comprising a support component and a drive motor, wherein, the support component is a cross drive lever component formed by two connecting levers which are connected with each other with freely rotated middle part in a scissors shape, comprising a driving lever and a driven lever, wherein, the driving lever passes through the middle part of the driven lever; the middle part of the driving lever is rotatablely fixed in the middle part of the driven lever; the driving lever is driven by a step motor, has one end fixed on the step motor and the other end fixed in a chute of the faceplate capable of sliding in the chute; and one end of the driven lever is connected with a hook of the faceplate, and the other end of the driven lever is arranged in the chute of the casing and can slide in the chute.

本发明公开了一种空调面板支撑装置，设于挂式空调吸入口的前面面板和空调罩壳之间，包括支撑构件和驱动电机，所述的支撑构件是由中间部转动自由地相互连接的两连杆构成的呈剪刀状的交叉传动杆组件，包括主动杆和从动杆，主动杆从从动杆中部穿过，主动杆中部可转动地固定在从动杆中部，主动杆由步进电机驱动，一端固定在步进电机上，另一端在面板的滑槽中，可以在滑槽中滑动，从动杆一端与面板的挂钩连接，另一端在罩壳的滑槽中，可以在滑槽中滑动。

The present invention has stepped motor and sync belt driver to drive the label roll, guide wheel and magnetic steel plate to separate the upper paper layer and the lower paper layer from the label belt, electromagnet driven cutter to cut the adhesive film between two successive labels, electromagnet driven magnetic steel block to transfer the label onto the label inserting board, and elevating and rotating manipulator to insert and stick the label inserting board into book seam.

本发明通过步进电机、同步带传动驱动卷标上下层纸带收卷轮的转动，上层纸带与标签及下层纸带与标签之间的分离通过一导轮和磁钢板实现，连续型卷标相邻两个标签之间的不干胶膜由电磁铁驱动的切刀切断，金属标签通过电磁铁驱动磁钢块撞击取签插板而使标签脱离下层纸带被转贴到取签插板上，取签插板手动插入或取出，或者用升降旋转机械手将末端贴有标签的取签插板插入翻开的图书中间夹缝内，使标签转贴到图书内纸上。

The pedrails moving system are chosen as the moving mechanical of the climbing robot for pressure vessel.

本文设计的压力容器检测爬壁机器人采用履带式移动机构，双履带构成爬壁机器人的基本框架；采用永磁吸附方式，将永磁片贴在履带的外表面，可提供足够大的吸附力，结构简单；采用前轮驱动，两个驱动轮分别由电机驱动，当两电动机转速一致时，机器人沿直线行走，当两电动机差速时，可实现爬壁机器人整体转弯。

A deviation to enable business card printing and membership card making more neatly away material; business card printing and membership card Studio Center-drum for double-deck, using thermostatical hollow water circulation system structure, plated nickel plating avoids corrosion, Nano-imprint lithography drum machine, safe and reliable braking equipment; spam satellite business card printing and membership card, four business card printing and membership card production unit in the Centre of coining drum distribution around the business card printing and membership card making support adoption of the integral structure, intensity that cannot be easily; Center for the imprint drum version, roller roller, using separate servo motors between the gearless, Business card printing and membership card making length is not supported by gear pitch in roll-wide choice; business card printing and membership card making pressure, roller and roller pressure singlein servo motor and with memory with two types of regulation, accurate and rapid adjustment; closed ceramic Roller blade device ink to ensure that the business card printing and membership card making ink stability, blade-like device for pneumatic compression; taojian the plate cylinder, taojian-reseaus and roller, the portal structure of push-pull roller and taojian beckenbachannular roller to replace a simple and quick; roller servomotor-driven business card printing and membership card production and business card printing and membership card making machine be a certain speed, stopping the slow down to prevent the ink roller network hang dry knot, splash-proof ink installed equipment downtime or roller pressure, from the printing plate out of arrive﹖, stop to ink, the plate cylinder the full delivery from the pressure to keep the printing plate clean; stainless steel-monlchamus tuhung-glass to prevent ink prints get dirty; dryer direct to the wind, air flow loss small high efficiency, reduces noise scene, new oven heat energy to secondary structures, control temperature control system using intelligentized; traction roll at the same time acts as both a cooling rolls, new structure increases cooling effect.

纠偏，使制卡和会员卡制作走料更加整齐；制卡和会员卡制作部中心大滚筒为双层空心式，采用恒温水循环系统结构，表面镀镍处理可避免锈蚀，中心压印滚筒采用机械制动装置，安全可靠；卫星式制卡和会员卡制作方式，4个制卡和会员卡制作单元分布在中心压印滚筒周围，制卡和会员卡制作支架采用整体式结构，强度好不易变形；中心压印滚筒、版辊筒、网纹辊之间采用独立伺服电机无齿轮传动，制卡和会员卡制作长度不受齿轮节距限制，在版辊范围内任意选择；制卡和会员卡制作压力、网纹辊与版辊之间的压力分别用伺服电机调整，并具有记忆功能，调整有两种调节方式，精确调整与快速调节；陶瓷网纹辊封闭刮刀装置供墨，可确保制卡和会员卡制作过程中油墨稳定饱满，刮刀装置为气动加压；套筒式印版滚筒，套筒式网纹辊筒，门式推拉式结构使套筒版辊与套筒网纹辊更换简单快速；网纹辊由伺服电机驱动，制卡和会员卡制作时与制卡和会员卡制作机保持相对一定的速度，停机时则放慢速度匀墨，防止网纹辊网坑枯结，两边安装防油墨泼溅装置，在停机或离压时，网纹辊立即从印版脱离开来，停止给墨，印版滚筒把墨完全传递后离压，保持印版清洁；不锈钢接墨斗，防止油墨滴漏蹭脏印品；干燥箱采用直接进风型式，风量损失小效率高，减小了现场噪音，新型烘箱结构热能可二次利用，控制采用智能化恒温系统；牵引辊可同时兼作冷却辊使用，新型结构增大了冷却效果。

The utility model relates to a double-purpose driving apparatus of medical X-ray machine with remote-control and direct-control, which belongs to medical equipment.The driving apparatus comprises a direct-current speed reducing motor whose output terminal is fixed with a ring electromagnet; an armature iron is arranged on the motor output shaft whose end is provided with a driven wheel meshes with the armature iron and rotates around the motor shaft.As the electromagnet is electrified, the armature iron is attracted and disengages from the driven wheel.With the driving apparatus, the remote control and the direct control of a non-remote controlled X-ray machine can achieve, increasing the working efficiency by 3 to 4 times and the economical benefits.

该实用新型涉及双重用途的驾驶仪器的医用X光机的远程控制程序，并进行直接控制，属于医疗equipment.the驾驶仪组成，直接电流减速电机，其输出端是固定的一个环电磁铁；电枢铁是安排在电动机输出轴，其终点就是提供一台四轮驱动的网格与电枢铁和周围旋转电机shaft.as电磁铁通电，电枢铁是吸引和脱离接触，从驱动轮随着驾驶仪器，远程控制，并直接控制的一个非遥控X光机，能做到的事，提高工作效率3至4倍和经济效益。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。