查询词典 excavator

Study of the Accelerograph Fuzzy Controller of Hydraulic Excavator Saving Energy.

液压挖掘机节能用油门模糊控制器的开发研究

Backhoe excavator operations each cycle, including mining, Rotary, discharge and return to the course of four.

反铲挖掘机每一作业循环包括挖掘、回转、卸料和返回等四个过程。

The company's construction machinery program comprises complete tower crane, truck crane, hydraulic excavator, dumper truck, hydraulic rope excavator, wheeled loader, crawler tractor and loader, pipe-laying machine, concrete mixing plant and truck mixer model lines.

公司建筑机械计划包括完整的塔式起重机、车载式起重机、液压挖掘机、自卸翻斗车、液压吊管机、轮式装载机、履带式拖拉机与装载机、管路铺设机、混凝土搅拌站与搅拌车系列。

Therefore, the analysis of excavator hydraulic system design in promoting the development of China's excavator of great significance.

因此，对挖掘机液压系统的分析设计对推动我国挖掘机发展具有十分重要的意义。

Aiming at the limitations currently existing in controlling mine excavator with magnetic triggers,such as slow dynamic response of system,poor dynamic index and excavator characteristics,as well as complicated structure,etc.,the strategy of double closed-loop excitation electric adjustment,i.e.current inner loop and voltage outer loop,is adopted to design an advanced electronic integrated control system for mine excavator.

目前矿用电铲常见的是采用磁性触发器进行控制，存在系统动态响应慢、动态指标欠佳、电铲特性不理想、结构复杂等缺陷，采用电流内环和电压外环的双闭环励磁电调方案，设计了一种先进的电子集成电铲电控系统，详细介绍了系统电路结构，尤其是电压、电流调节器及其反馈电路与特性适配电路的基本原理和功能特点。

In order to design lighter and faster hydraulic excavator, a rigid-flexible hybrid modeling method based on rigid multi-body dynamics and finite element method was put forward to study the dynamic characteristic of hydraulic excavator in its whole working cycle. The working equipment with characteristic of time-varying structure was taken as research object, and radial acceleration was computed as tags of key load.

为适应液压挖掘机高速、轻量化的要求，以具有时变固频特性的液压挖掘机工作装置为研究对象，提出了以角加速度判断时变结构的关键工况，利用刚性多体动力学和有限元方法对液压挖掘机在整个作业循环中的动力学特性进行建模和分析。

At the same time, a mass of data during the traditional process of excavator design is stored dividually in different data base, which directly affects the efficiency of excavator design and the implementation of subsequent excavator CAE system.

另一方面，由于挖掘机CAD系统中的大量数据和信息都分散存储在不同系统数据库中，大大影响了设计进程和后续的挖掘机CAE系统的进行。

Our company is one of those who have most mini excavator models and full-lined series, and fastest developing speed in the field of mini excavators, ranking fifth in among China mini excavator manufacturers.

我公司是目前中国国内少数几家专业生产小型挖掘机种类最全，型号最多，发展速度最快的厂家之一，综合排名居国内同行业第五位。

According to not completely statistics, China's engineering's machine's market's proceedses be possible to break through 100,000,000,000 yuan Renminbi in 2003, withs proceeds' 77,600,000,000 yuan Renminbis compare with in 2002, amplitude above at 25%, market reappear "blowout "state. Excavator's sale volumes reach 33000 in 2003, add import de excavator, excavator's market's volume at 60000 above in 2003 the whole year; mechanical loader's market's sale volume at 80000 about, thereinto's mansion work, willow work's a year mechanical loader produces the sales volume average double exceed 10000; forklift's market's sale volume at 40000 about, thereinto equal to fork and Hangzhou fork's production and marketing average double exceed 10000; press real machine's market's sale volume at 10000 above; crane's market's sale volume too at 10000 above.

据不完全统计，2003年中国工程机械市场销售额有望突破1000亿元人民币，与2002年销售额776亿元人民币相比，增幅在25%以上，市场再现&井喷&态势。2003年挖掘机销量达33000台，加上进口的挖掘机，2003年全年的挖掘机市场容量在60000台以上；装载机市场销量在80000台左右，其中厦工、柳工年装载机产销量均双超10000台；叉车市场销量在40000台左右，其中合叉和杭叉产销均双超10000台；压实机械市场销量在10000台以上；起重机市场销量也在10000台以上。

The first excavator manual has been available 130 years of history has gone through during the fight by the steam-driven rotary excavator to the internal combustion engine and electric drive rotary excavator hydraulic application integration technology of the automatic hydraulic excavator Step by step in the development process.

第一台手动挖掘机问世至今已有130多年的历史，期间经历了由蒸汽驱动斗回转挖掘机到电力驱动和内燃机驱动回转挖掘机、应用机电液一体化技术的全自动液压挖掘机的逐步发展过程。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。