查询词典 rotary table

The mechanism is composed of two ball screws, U-type linear rails, linear bearings and flexible couplings. The permanent magnetic direct current motors are used as actuators. The rotary encoder is used to measure the angular position of the DC motor. The digital controller is implemented on the personal computer and a motion control card (EPCIO-6000). The objective of this thesis is to realize precise positioning control using a real-time motion control system on an X-Y table.

机械结构包括有滚珠导螺杆、U型线性滑轨组、线性轴承及可挠性连轴器等；致动器是采用永磁式直流马达(permanent magnetic direct current motor)；感测器是使用光学式旋转型编码器来量测马达旋转的角度；控制器则是以个人电脑为控制核心，搭配运动控制轴卡(EPCIO-6000)所组成。

This was accomplished by moving the worm gearing and breaking assembly to the bottom of the sub plate and mounting the rotary axis motor to the outboard end, concentric to the tilt axis table.

这移动一种计算机病毒适合并且把会议弄断成附属金属板的屁股并且把旋转的轴电动机安装在外侧的末端上完成，倾斜轴桌子同心。

The instrument simultaneously sample for three phase voltage and current. Rotary photoelectric coding switch and LCD are used for human-computer interaction. it makes the interface compact and efficient. Utilizing the function of positive and negative edge trigger of the programmable counter array unit in MPU, signal zero-cross is captured for the phase detected based on double way. The software synchronism sampling method based on real-time parameter self-optimizing minishes period truncation error, and the measurement accuracy is improved. The digitization power measure imports traditional two-unit and three-unit methods and expands application range of the instrument. The capacity is discriminated by soft ware table-look-up on the load loss. The value of a quantity is converted to the value when reference temperature (75 ℃) from test temperature.

该仪器具有以下特点：仪器对三相电压电流同时采样；基于旋转式光电编码器和液晶显示屏的人机交互界面简洁而高效；可编程计数器阵列PCA"捕获"信号的过零点用于双向过零平均鉴相，得到准确的相位差和周期；基于实时参数自寻优的软件同步采样，有效地减小了周期截断误差，提高了测量准确度；数字化功率测量引入了传统的二表法和三表法，扩展了仪器的使用范围；实际容量根据负载损耗用软件查表的方法来判别；测量值已从试验温度折算到了参考温度(75℃)时的值。

Rotary servo motor + ball screw up to 2 ~ 5μm, and the requirements of CNC-servo motors - even without coupling gap - thrust bearing - Cooling System - high-precision rolling guide - Nut Block - table closed-loop system as a whole transmission part to lighter, higher precision grating.

旋转伺服电机+滚珠丝杠最高达到2~5μm，且要求CNC-伺服电机-无隙连轴器-止推轴承-冷却系统-高精度滚动导轨-螺母座-工作台闭环整个系统的传动部分要轻量化，光栅精度要高。

The mean value of work loads on a shaft bearing of swivel and rotary table is determined by basic principles of fuzzy theory, considering the loads' fuzziness and the requirement for reliability.

考虑钻机水龙头和转盘主轴承工作载荷的模糊性及可靠性要求，应用模糊数学基本原理求得平均计算载荷，从而计算出主轴承的模糊可靠性寿命。

The variable load operating mode of the rotary table and swivel was transformed equivalently into stable load operating mode, and the equations for calculating the equivalent weig...

即将转盘和水龙头主轴承由变载荷工况向稳定载荷工况作等效转换，从而导出等效当量动载荷Pm 的计算式及主轴承寿命估算公式，并以 40 0 0m深井钻机水龙头主轴承为例，进行了疲劳寿命的估算

Rotary table swivel main beating life estimation equation

转盘；水龙头；主轴承；寿命；估算；公式

According to the main equipment of Wei 12-1 workover rig and drilling basis data of adjustment well, the hook load and torque of drill string are found out and a new drilling string is presented by using the torque and drag analysis model and calculating software, on which depend to calculate and evaluate the capacity of main drilling equipment of Wei 12-1 workover rig , such as derrick, drawworks, and rotary table, as well as hoisting equipment (traveling block, hook and swivel) and drill line etc.

根据涠12－1修井机主要配套设备和钻调整井的钻井基础数据，运用钻柱摩阻的计算模型，对侧钻过程中钻柱的摩阻/扭矩进行分析计算，提出新的钻具组合，计算大钩载荷及扭矩载荷，并根据计算出的大钩载荷及扭矩载荷，对平台修井机主要钻井设备井架、绞车、转盘、提升设备、钻井大绳等的承载能力进行分析计算，得出分析研究结论，并提出改造的具体思路及相关配套技术的实施方案。

The potter's clay is placed on the rotary table centre, strike with the palm while rotating the revolving stage slowly.

陶土放在转盘中心，一面慢慢旋转转台，一面用手掌侧面拍。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。