查询词典 hydraulic

At the same time, on the base of analysis of the present situation, the development trend and the leading edge technology, the necessity and feasibility about the exploitation of the full hydraulic bulldozer"s sate monitoring and fault diagnosis system is given; According to the structure, working feature and working environment, it works out system schema and system composition; The system is divided into display module, communication module and fault diagnosis module by means of block design, the implementation method and key parameter are also given; In light of the features of the full hydraulic bulldozer, the state monitoring and fault diagnosis platform composed of controller RC6-9 and display DI2/10 is designed based on CAN-Bus and the hardware design is completed; It lists the measured values and state of monitored parameters which should be real-time displayed in monitoring module as well as the data which will be transmitted; Furthermore, On the base of the study of, it gives 34 kinds of constant faults" diagnosis methods; Using BODAS software and DPS software, it compile the program code of the controller and the displayer; At last, this paper design and make the simulation test device of control system of construction machinery, through the experiment, the realizability, the categoricalness, the reliability, the stability and real-time are tested, in addition, the improved methods are given.

本文收集整理了国内外智能推土机研究的相关文献资料，综合分析了国内外智能推土机的研究现状、发展趋势和前沿技术，论证了开发全液压推土机智能系统的重要组成部分&全液压推土机状态监测与故障诊断系统&的必要性和可行性；根据全液压推土机的结构、作业特点和作业环境，制定了全液压推土机状态监测与故障诊断系统方案，确定了系统的结构组成；采用模块化设计方法，将整个系统分成了显示、通信和故障诊断三个模块，给出了各模块功能的实现方法，确定了各模块的关键技术参数：选用RC6-9和DI2／10作为系统的控制器和显示器，用CAN总线搭建了系统的通信平台，完成了系统的硬件设计；确定了系统监测参数和通信数据，对全液压推土机常见故障特征进行了分析，给出了34种常见故障的诊断方法；在BODAS软件和DPS软件的集成编程环境下，编写了控制器和显示器程序；设计并制作了工程机械控制系统模拟试验板，并在此基础上通过多次的程序调试与试验，对所设计的全液压推土机状态监测与故障诊断系统功能的可实现性、完备性、可靠性、稳定性和实时性进行了检验，证实了此系统的可行性，并提出了进一步的改进方案和措施。

Pseudoverticillata, but there was no significant change in Celtis wightii. There was no significant change in leaf area specific hydraulic conductivity K(subscript l between the two seasons in all the three species, which may caused by the adjustment in hydraulic architecture through partial loss of leaves during the dry season. In the dry season, maximum carbon assimilate rate A(subscript max was significantly lower than that of the wet season in all the three species.

除油朴的枝条边材比导率K(下标 s在旱季和雨季没有显著性差异外，尖叶闭花木和轮叶戟的K在旱季都有显著的降低；而枝条的叶比导率K(下标 l三树种在两个季节间均无显著变化。K在旱季没有显著性降低，可能是常绿树种在旱季通过脱落部分叶片以调整其水力结构来保持较高的单位叶面积的水分供应。

The conclusion is that the "ω" shape suction champer has excellent hydraulic characteristic in different inlet flow conditions. Its hydraulic loss is small and velocity-averaged streamline angles on special cross sections are approximately 90°.

试验和数值分析结果表明：采用&ω&形后壁吸水室钟形进水流道在不同进水条件下均具有良好的水力性能，水力损失小，流道出口断面速度加权平均入流角接近90？

The structure and principle of hydraulic injector which was key equipment of vacuum system for evaporation in chlor - alkali production was introduced. Process of calculation for design and size of each components of hydraulic injector were described in detail.

龙荣介绍了氯碱生产中蒸发装置真空系统的关键设备一水力喷射器的结构及原理，对水力喷射器的设计计算过程、各部件尺寸都作了详尽的描述，就设计过程中的两点不足作了改进。

On the base of the hydraulic model tests of a chute spillway with outer bulging step energy dissipater,in which the chute slope is 1∶2～1∶6,the hydraulic characteristic of stepped chute spillway is discussed.

在坡度i=1∶2~1∶6的的陡槽溢洪道外凸式阶梯消能工水力模型试验基础上，对不同阶梯体型的陡槽段水力特性进行研究探讨。

The flow pattern, the distribution of average dynamic water pressure and the flow velocity near the floor of lip energy dissipater by hydraulic jump are analyzed through the method of hydraulic test.

采用水力学试验方法，对跌坎型底流消能工的水流流态、时均动水压力分布以及临底流速进行了分析。并对影响消力池水力特性的跌坎深度和水流入池角度进行了研究。

By the hydraulic engineering modle experiment of Liaofang hydraulic project ,we adopted the energy dissipation method which took the T type pier as the auxiliary dissipater.

通过水工模型试验，廖坊水利枢纽工程采用T型墩为辅助消能工的消能形式，不但大大缩短了消力池的长度，而且得到较好的水流流态，满足了下游防冲要

Valve element clutch of hydraulic diverter valve is one of many Malfunction of Hydraulic control system. In severe cases , it may be lead to accidents.

摘 要：液压换向阀卡紧是液压系统常见的问题，严重时甚至会可导致事故。

In the first, the length of every poleof the leading four-bar mechanism are determined bypainting,secondly, the base of mechanic model ofsupport-surrounding, the mechanism and loads on the support isdecided. The next work, with the condition of the design, the mainmechanics of hydraulic support is analyzed and calculated by planeand spatial model. Finally, the under frame, top beam cave shield,wrists and hydraulic column are analyzed by calculation. And drawout all the process drawings.

首先，通过作图确定支架的四连杆机构各杆系的长度；然后，以力学模型为依据，分析了液压支架的顶梁、掩护梁上载荷的作用机理，得到了较为合理的支架载荷的计算公式；其次，结合设计的支架，从平面和空间两方面对支架主要结构件进行受力分析；最后对支架主要结构件、连接销轴进行强度效核，并画出所有的机械图。

At present,our products include : GTC series lifters; SJY series forficiform lifters;GTC series sleeve high altitude work flat, Z series zigzag high altitude work flat, SJG series fixed hydraulic lifers, fixed briage, moved briage and hydraulic handbarrows etc. Furthermore, we can design and manufacture special product according to client requirement.

公司主要产品有： GTC系列铝合金高空作业平台，SJY系列剪叉式高空作业平台，GTC系列套缸式高空作业平台，Z系列曲臂式高空作业平台，SJG系列固定液压升降平台，SJG系列固定液压升降货梯、固定登车桥、移动登车桥、液压升降搬运车等数十种产品，数千种规格，并可按照客户要求定制特殊产品。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。