液压

This paper has created the mathematical model of the hydraulic system of the steel bar cutter, considered the hydraulic power unit, accumulator and hydraulic pipe, specially the dynamic characteristics of the hydraulic cylinder buffer structure.

本文建立了高速钢筋切断机液压系统的数学模型，充分考虑了液压动力元件、蓄能器及液压软管等元件的影响，着重分析了液压缸缓冲结构的动态特性。

From the strength of the cylinder in the platen press ,the relations between the allowable stress of material to make the cylinder and the hydraulic pressure are derived when the outer diameter of the cylinder is the minimal value.

根据平板硫化机液压缸圆筒部分的强度条件，推导出液压缸外径为极小值时，液压缸材料的许用应力与工作液压力之间的关系，从而为平板硫化机的优化设计提供了最佳工作液压力值。

In addition ,the thesis deals with amount of components devices and calculations ,including :(1) Choice of the main shaft and disposal of transmission , by doing so to ensure the accuracy of components machining in process when the main shaft rotating;(2)The device and check of the transmission shaft ,so it can assure the rigidity of the shaft is allowable ;(3) Gear device and calculations ,check the performance in the strength and rigidity of it ;headstock is a very important part in this thesis ,the design of it here not only ensures the rationality 、equipoise and stability of the motion of the slipway ,but also satisfies the requirements of different work environment .

液压装置的设计液压滑台、定位夹紧装置均为液压控制。并采用了许多液压控制阀，保证了运动的平衡性，循环性和精确性。另外，本文还涉及到大量的设计和计算，包括：（1）、主轴的选择和传动布置，以保证加工过程中被加工零件的精度；（2）、传动轴的设计和校核，以保证轴的刚度；（3）、齿轮的设计、计算，对齿轮的强度和刚度进行校核；多轴箱部分是本次设计的重要环节，本次设计中它的设计既要保证工作台的运动的合理、平衡和准确，又要满足工作要求。

This kind of structure cylinder that ultrahigh pressure is produced in the work cylinder interior, does not affect the tubing, made the system seal to be simple, and it enables the small fluid pumping station to drive the hydraulic cylinder.

这种结构的液压缸超高压只在工作液压缸内部产生，不波及油管，使整套系统密封简单，实现了小液压泵站驱动大作用力液压缸的目的。

Our company's main product includes:Four rope double petal multi-petal grab,Double rope double petal grab,Rolls the double petal multi-petal grab, Remote control grab, dredging grab, single rope grab, container, and hoist, Cable Remote-Control grab, Electric-Hydraulic grab, Electric Motor grab, hopper, spreader, jig, Deck Crane, Hydraulic Hose Crane.

抓斗：双绳抓斗，四绳抓斗，气动抓斗，单绳抓斗，液压抓斗，疏浚抓斗，挖掘机抓斗，剪式抓斗，木材抓斗，荷花抓斗、无线摇控抓斗、电厂专用防水抓斗、手拉抓斗、集装箱吊具、半自动吊具、吊梁，C型钩，集装箱运输车、夹钳、液压旋转可伸缩集装箱吊具、机械式抓斗、电动液压抓斗、无线电遥控抓斗、水下疏浚抓斗、工程车辆配套液压抓斗。

This paper starts to explore the technology of changing the traditional hydraulically operating equipment.

本文对液压成形设备进行改造，为解决传统液压系统中液压油对液压系统的冲击和振动问题提供依据。

Design of the CPA Stable union of base plate and intermediate plates with integral rams inserted centrically into each other Strong and rigid connection of the linear position measuring system with all ram systems Every ram system equipped with main hydraulic ports Every ram system equipped with additional hydraulic ports for movements outside the press Mechanical-hydraulic quick-clamping device Adapter travelling gear for rail-bound transport Complete adapter changing system Advantages Good accessibility for tool changeover Quick and simple adapter change with hydraulic quick-couplers and electric travel gear High compacting forces in both directions Short setup times Automatic centering and clamping of the adapter relative to the machine axis Tool presetting outside the press possible High guiding accuracy

设计的注册会计师安定联盟的底板和中间板块与积分公羊插入centrically到对方强大和刚性连接的线性位置测量系统与所有的RAM系统每一个内存系统配备的主要液压港口每一个内存系统配备额外的液压港口动作外新闻机械式液压快夹紧装置适配器行驶齿轮为铁路运输的约束完成适配器变换系统优势良好的无障碍环境，为工具换届快速简单的适配器改变与液压快车钩及电动旅行齿轮高压实势力在两个方向短期调整时间自动定心夹紧的适配器相对机床主轴刀具预调外新闻可能高指导的准确性

Due to varying in working object and medium, the delivered mode and mechanism of vibration energy of super-frequency hydraulic vibrator is different.

本文系统的综述了国内外高频液压振动器的的现状和发展趋势，通过对几种液压振动器和液压调频器的方案分析，构思设计了回转调频器式超高频液压振动器。

The unit adopts variable displacement hydraulic pump, hydraulic cylinder, movable pulley and broad belt to transmit power,has the charecteristics of abundant recovery and full use of power,minor fluctuation of electric motor load, low height of the unit, long stroke length and convinence of adjusting the stroke length and pumping speed, can realize the performance of being fast on the upstroke and slow on the downs...

该液压抽油机采用变量液压泵—液压缸—动带轮及宽胶带传递动力，具有功率回收利用充分、电动机负载波动小、整机高度较低、冲程长、冲程和冲次调节方便等特点，可实现上快下慢的工作状态，并具有失载与过载保护功能，是一种结构简单、重量轻、能耗少、载荷大的新型长冲程液压抽油机。

The utility model is characterized in that a commonly used escalator which is formed by a plurality of active rundles and handrails is assembled on a vehicle, and the drive force of the escalator is suppplied by the vehicle through the mechanical transmission system; a mechanical transmission system is added in the vehicle and the mechanical transmission system mainly transmit the dynamic energy to the escalator carried on the vehicle, the rundles and the handrails can move in positive or opposite direction synchronously; a hydraulic power transmission system is added in the vehicle, and then the hydraulic power transmission system mainly transmit the dynamic energy to the escalator carried on the vehicle as well as related hydraulic power transmission devices or facilities; the whole vehicle-carrying escalator is supported by the supporting facilities, or the whole vehicle-carrying escalator moves upwards and downwards taking the axle direction which movably connects the lower end and the tail end of the vehicle as center.

其主要技术特征是：将主要由若干节活动梯级、扶手带等组成的现代所通常使用的自动扶梯安装在机动车上，并使自动扶梯的主动力部分由机动车通过机械传动系统供给；在机动车上增加机械传动系统，该机械传动系统主要向所载的自动扶梯传递动能，并使自动扶梯的梯级和扶手带能够同步正向或反向运动；在机动车上增加液压传动系统，该液压传动系统主要向车载自动扶梯的相关液压传动装置或设施传递动能，并在机动车的液压传动作用下，使支撑设施支撑整体车载自动扶梯，或使车载的自动扶梯以下端与机动车末端活动连接的轴向为中心整体升、降运动。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。