龙门

大禹首先凿开龙门（今运城河津市），分洪下泄

First of all , scuttling Yu Lung ( this yuncheng Hejin ) , flood discharge .

龙门式加工中心C轴系统瞬态温度场建模与仿真

Thermal model and simulation of C-spindle system of gantry machining center

龙门起重机金属结构CAD系统研究与开发

Research and Development of CAD System for Steel Structure Design of Gantry Crane

变频调速器和PLC在龙门刨床上的应用

Inverter and PLC Applied to Improvement of Double Housing Planer

基于PLC和变频器的龙门刨床改造

The Improvement of Double housing Planner Based on PLC and Frequency Converter

双直线电机驱动的龙门移动式加工中心H∞鲁棒自适应控制

Robust Adaptive Control for Double Linear Motor Drive of Gantry Moving Type Machining Centers

利用大型通用有限元分析软件ANSYS对龙门架钢结构进行强度分析。

Strength analysis of crane gantry structure is conducted with ANSYS .

基于ANSYS的隧道衬砌台车龙门架螺栓副设计

Design of Based on ANSYS Tunnel Lining Trolley Gantry Frame Bolt

基于ANSYS的龙门起重机结构系统谐响应分析

The Structural System of Gantry Based on ANSYS Responds Analyzing Humorously

龙门收排线机的PLC控制

PLC control for portal taking-up and traversing machine

加工大件的5轴CNC龙门移动式机床

5-axis CNC Gantry Machine for Large Parts Machining

PWM整流技术在龙门刨床上的应用

Application of PWM Rectification Technology on Double Housing Planer

针对龙门刨床的主拖动系统，提出将模糊自适应PID控制用于直流调速系统的方法。

This paper proposes the application of fuzzy adaptive PID control in DC adjustment speed system aiming at advocate-drag system of dragon-planer .

MQ系列龙门式起重机大修理的零部件检查与处理

The inspection and treatment of the spare parts of the MQ series gantry crane

现有各种数控中心、CNC机床、镗床、龙门铣床、压力机等先进的生产设备。

There is numerical control center , CNC machine , milling and boring machine , press machine and other advanced machines .

附属物的或构成附属物的；尤其指肢体附属物。龙门起重机金属结构CAD系统研究与开发

Relating to or consisting of an appendage or appendages ; especially the limbs . Research and Development of CAD System for Steel Structure Design of Gantry Crane

4m龙门刨床自适应控制系统研究

Research on Adaptive Control System of a 4m Gantry Planning Machine

本文对B2020A/1龙门刨床V型导轨面局部磨损故障产生的原因，应用铁谱技术进行了详细分析。

This paper analysed the cause of B2020A / 1 table planer 's V mode track wear and tear , applied iron spectrometer technology to analyse in detail .

电主轴与高速加工技术基于PMAC的开放式双主轴龙门钻床数控系统研究

Research of PMAC-based open NC system for the horizontal twin spindles double column drill press

LSD液压同步提升系统在船厂龙门起重机安装工程中的应用

Application of LSD Hydraulic Synchronic-lifting Mechanism in the Installation of Gantry Crane

定梁龙门铣磨床砂带磨削装置的设计计算节气门前EGR系统

Design and calculation of abrasive belt grinding device in fixation-girder portal milling-grind machine above throttle valve EGR system

川西龙门山地区元古代VMS铜矿床：硫化物微量元素和硫同位素证据

The Proterozoic VMS Copper Deposit in Longmen Mountain Area of Chuanxi : Evidence from Sulphide Trace Element and Sulfur Isotope

用KBS电柜改造龙门刨床

The reform of planer with KBS power cabinet

分析了龙门刨床的运动特点，介绍了利用变频器结合PLC对龙门刨床进行自动化改造的可行性及实现方法，以提高其加工效率与精度。

The paper analyzes the features of motor of a planer . Feasibility and method combining transducer with PLC to improve motion system of a planer are presented , improving its efficiency and precision .

基于西门子M4控制器的A系列龙门刨床主拖动系统技术设计

Technical Design of a Series Gantry Planer Main Driving System Based on Siemens M4 Controller

在G-M系统和变频调速系统进行比较的基础上，介绍了基于PLC、变频器的B2012A型龙门刨床主拖动系统的改造。

Based on the G-M system contrast to the system of frequency conversion , the paper introduces the improvement of advocate-drag system of dragon-planer of transducer of B2012A and PLC .

本文针对龙门刨床机械式进刀量控制机构的结构特点，采用PLC为主控制器，以变频器作为控制电源，结合变速箱传动机构，研制了一种龙门刨床刀架自动进给控制系统。

With the double housing planer mechanical feed control characteristics , this paper developed one kind of automatic feed control system of double housing planer combined with PLC controller and converter control power supply and gear-box drive .

设计了适用于BQ2010轻型龙门刨床工作台的交流变频拖动及其PLC控制系统。

An AC variable frequency drive and PLC-control system for the worktable of light-duty double housing planer of BQ2010 was designed .

YZ-35牙轮钻机龙门架立柱断裂原因分析及处理

YZ-35 rotary drill Dragon Gate Column Break Reason Analysis and Processing

T12型龙门铺轨机托架平车组

Car Products , Parts & Components Flat Car Set for Carrying Gantry Rail Layer Bracket Type T 12