查询词典 stepper

This paper describes the working theory, construction design, technology rules and inspection accuracy of the precision stepper ball screw nut.

本文主要阐述精密步进滚珠丝杠副的工作原理、结构设计、制造工艺及精度检验。

Suction superheat control system consists of electronic expansion valves, pressure sensors, temperature sensors, controller, working hours, the pressure evaporator outlet pressure sensor P1, temperature sensors compressor suction superheat will be passed to controller, controller After signal processing, followed by the output commands acting on the main electronic expansion valve stepper motor to open the valve to the desired location.

吸气过热度控制系统由电子膨胀阀、压力传感器、温度传感器、控制器组成，工作时，压力传感器将蒸发器出口压力P1、温度传感器将压缩机吸气过热度传给控制器，控制器将信号处理后，随后输出指令作用于电子膨胀主阀的步进电机，将阀开到需要的位置。

Electronic expansion valve stepper motor is based on changes in the evaporator outlet pressure P1, the compressor suction Plug Valves superheat degree change in real-time changes in power output, the real-time output of the dynamics of change in time to overcome a variety of working conditions and the main expansion of load condition valve spring force changes, so that the valve opening to meet the evaporator, the demand Reducing Valves for fluid volume and thus the amount of fluid for the evaporator and the evaporator load in real-time match, that is, the electronic expansion valve can be set through the controller, man-made and effective control over superheat.

电子膨胀阀的步进电机是根据蒸发器出口压力P1变化、压缩机吸气过热度变化实时输出变化的动力，这个实时输出变化的动力能及时克服各种工况和各种负荷情况下主膨胀阀变化的弹簧力，使阀的开度满足蒸发器供液量的需求，进而蒸发器的供液量能实时与蒸发负荷相匹配，即电子膨胀阀可通过控制器人为设定，有效的控制过热度。

The mainly learnning is low-voltage apparatus、three phase asynchronous motor and electric control wiring of DC Motors、Principle and control of stepper motor and control wiring of typical electric machine、basic theory and basic methods of machine equipment electric control、 basic control circuit of electric control system、analysis of typical electric machine control System、basic principles and methods used of PLC、design and debug of machine tool control system、 design of electrical control gear etc.

主要学习常用低压电器、三相异步电动机和直流电动机的电气控制线路、步进电动机工作原理及控制以及典型机床电气控制线路、机床设备电气控制的基本理论和基本方法、电气控制系统的基本控制电路、典型机床电气控制系统分析、可编程序控制器的基本原理及使用方法、机床控制系统的设计和调试、电气控制装置设计等内容。

In this system the motion controlling centers upon regulating the speed of wire feeding and movement of lead screw in each direction.Four motors separately drive the wire-feeding tape roll and the lead screw move respectively following their directions of X, Y, Z axis. If all the motors are controlled by 89C51 directly,it will rise great difficulty for software and hardware implementation. So the suggested solution is to combine the microcomputer with stepper motor driver and control of their motion.

在本系统中运动控制的关键即送丝与各丝杠移动的调节，由四个电机分别驱动X，Y，Z轴方向的丝杠行走以及送丝操作，运动控制部分如果用89C51直接驱动各电机则在软件和硬件实现上都比较困难的，所以选用单片机与步进电机驱动器结合起来控制它们的运动。

Ray filter ; silicon photocell ; stepper motor ; driving means ; auto-switch ; AT89C2051

滤光片；硅光电池；步进电机；驱动方式；自动切换； AT89C2051

This paper introduces the application of the stepper motor control in tea twisting machine based on the SIMATIC S7-200 series PLC. And discusses the control system, the design and the method of the hardware.

介绍了基于西门子S7系列PLC的步进电机控制在茶叶揉捻机中的应用，论述了控制系统的设计方案及其硬件的实现方法。

The focus of this design is automatically drilling vertical milling machine design, including the mechanical structure design, mechanical drive system design, and the choices and design of components on a table ,it is include: screw, timing belt, and the stepper motor Selection Guides; circuit is the main elements of the last part of the design , the control unit such PLC as the main can be quickly and easily complete the task of feeding the PLC's work, and designs the principles and procedures required by the design.

本设计的重点是自动立式钻铣床的设计，包括了机械结构设计、机械传动系统的设计，并对工作台的元件进行了选择和设计：包括丝杠、同步齿形带、步进电动机和导轨的选型；最后部分则是电路设计方面的主要内容，以PLC为主体的控制单元可以快捷方便的完成进给任务，对PLC的工作原理和本设计所需要的程序进行了设计。

DC motor complex large-scale three-phase power transformer deep-trough three-phase asynchronous motor DC motor DC motor single-phase squirrel-cage induction motor.Three-phase commutator motors, single-phase motor power sub-phase squirrel-cage three-phase asynchronous electric double mine explosion-proof motor with squirrel-cage three-phase asynchronous motor rotor cup AC servo motor drives three-phase asynchronous motor principle of rotating magnetic field Generation and transmission of three-phase induction motor winding three-phase stepper motor 165mm Three-phase three-phase synchronous motor stepping motor JFB power generator rotor rectifier type AC synchronous motor DC servo motor three-phase current rotating magnetic field of teaching instrument Wound Three-phase alternator motor 160 rats of three-phase permanent magnet generator cage induction motor Synchro Motor medium-sized three-phase power transformer

直流复励电动机大型三相电力变压器三相异步深槽式电动机直流电动机直流电机单相异步鼠笼式电动机三相整流子电动机单相电动机电源分相器三相异步双槽鼠笼电机矿用防爆电动机三相异步鼠笼式电动机杯形转子交流伺服电动机三相异步电动机调速原理旋转磁场的产生与变速三相绕线式异步电动机 165mm三相步进电机三相同步电动机 JFB型硅整流发电机转子供电交流同步电机直流伺服电动机三相电流旋转磁场示教仪绕线式电动机三相交流发电机 160型永磁发电机三相鼠笼异步电动机自整角电机中型三相电力变压器

Recumbent exercise bikes are so comfortable and easy to use that eventually you can do workouts giving you results like you've spent hours a day on a stair-stepper.

横卧自行车运动是如此舒适，易於使用，最终可以给你做训练结果看起来你已经花了几个小时，每天上台阶，步进。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失