液压

This thesis DESign steel wire tension control system of Steel Billet Grinding Machine, and establish mathematical model of every component in electro-hydraulic proportional valve control dissymmetry hydraulic cylinder servosystem and the load with large inertia and flexibility system of Grinding Machine. Through the medium of matlab/simulink simulation, this thesis mostly analyses Pre-load impact of steel wire stress. Compare with the emulation result of non-feedback, force feedback, displacement feedback, thereby educe reliable conclusion.

本文设计了钢坯修磨机钢丝绳张力控制系统，并且对电液比例阀控非对称液压缸伺服系统的所有液压元件和修磨机柔性负载系统进行了建模，通过MATLAB／SIMULINK仿真，主要分析了预紧力对钢丝绳受力的影响，而且对开环无反馈、力环反馈、位移反馈的仿真结果进行了比较、得出了可靠的结论。

The company, founded in 1978, has 20 years of history, specializing in the production of hydraulic cylinders, hydraulic pumping station pneumatic system of professional manufacturing company.

本公司创建于1978年，已有二十多年历史，是专业生产液压油缸气缸、液压气动系统泵站的专业制造公司。

It is able to initialize parameters; design and save test plan; input, save, reedit and activate test object info; real-time display of mechanics parameters and curves; programming test steps; management and report print of database.

论文以电液比例控制液压万能试验机为具体对象，在详细分析其工艺工况的基础上，给出了系统的物理和数学模型；着重就惯性负载、弹性负载不同的负载特性工况，对位置、变形、试验力控制系统进行了建模，并分析了它们的动静特性，指出影响系统精确性、快速性、稳定性的因素，并提出相应的解决办法；然后，论文推出了以工控机为控制核心的电液比例试验机控制系统；编写了电液比例控制液压万能试验机的部分工业控制软件，通过所编软件可实现：参数的初始化设置，试验材料测试方案的设计与保存，试样信息的录入、保存、修改和激活，力学性能参数和材料特性曲线的实时显示，自动程控方式下的编程，数据库管理和报表打印等功能；整个软件方案设计具有界面友好、操作方便、功能齐全等特点。

As one of the key components of water hydraulic system, water relief valve plays an important role in water hydraulic system.

纯水溢流阀是纯水液压系统的关键部件之一，其性能对纯水液压系统的性能有重要的影响。

Aimed at the frame riveted joint hydraulic pressure riveter and its system, we drafted the hydraulic pressure riveter system principle of work.

本文针对车辆车架的铆接，进行了液压铆枪及其系统的设计。拟订了液压铆枪系统的工作原理图。

Among the above products, Hydraulic rock drill and Hydraulic rock and concrete splitter are our patented products.

其中液压凿岩机和液压劈裂机是本公司的专利产品。

Company main equipment: 160 ton friction press, thread rolling machine CW6140A, CD6140A, the C630 lathe, WQ8260, crankshaft grinding T716, the vertical boring machine, the hydraulic pressure test platform, hit press M4214, the vertical hydraulic pressure grinder, the drilling machine, the saw village 60 tons presses, 5 tons overhead traveling cranes two, the GB4-1 sail loom, GB4035 metal gig saw ZPH-501 the intermediate frequency electric radiator DS-500 electric welding machine, the DSI-300 electric welding machine, the air compressor, the paper-cutting machine, the heat bonding machine, the stamping press, the laminating machine.

公司主要设备：160吨摩擦压力机、滚丝机CW6140A、CD6140A、C630车床、WQ8260、曲轴磨床T716、立式镗床、液压试验台、打压机M4214、立式液压研磨机、钻床、锯庄60吨压力机、5吨天车两部、GB4-1帆布机、GB4035金属带锯床ZPH-501型中频电热器DS-500电焊机、DSI-300电焊机、空气压缩机、裁纸机、热合机、烫金机、覆膜机。

The new bus production line in accordance with the requirements of modern production technologies used high-pressure electrostatic spraying, water purifying sewage rotation, hydraulic cold rose La Mengpi, automatic welding the top, adjustable hydraulic combination of a number of new welding techniques, such as births, critical Since the equipment with both Hyundai Motor and Japan, the U.S.

新的客车生产线按照现代化生产的技术要求采用了高压静电喷涂、水旋净化排污、液压冷涨拉蒙皮、自动大顶组焊、可调式液压组合焊接胎等多项新技术，关键性设备均引自现代汽车公司和日本、美国汽车企业，使产品工艺技术水平在国内同行业中居领先地位。

This paper introduces a new type rotatable hydroclamp to disassemble hydraulic prop and its structure,working principle,test,application.

介绍一种用于单体液压支柱拆卸的新型液压夹紧装置及其结构，分析了工作过程，工作原理，试验、应用情况，指出了这种装置的优越性。

In this paper the PLC hydraulic pneumatic control system of the punching process of iron roughneck was proposed for the walking power tong .

为满足国内对钻井设备自动化程度越来越高的要求，进一步提高液压大钳的自动化程度，基于行走式动力大钳提出了铁钻工上扣过程的PLC液压气动控制系统。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。