上海华建8m^3/9m^3型混凝土搅拌运输车荣获“2006中国工程机械年度产品TOP50”

上海华建8m^3、9m^3混凝土搅拌运输车以其研发早，搅拌装置独特，声誉卓著，影响广泛入选“2006中国工程机械年度产品TOP50”，这是全国混凝土搅拌运输车中唯一获此殊荣的产品。     

扎紧标准的笼子让违法者无处遁形

混凝土搅拌运输车是工程车辆中最大的细分市场,是重卡市场的一个重要分支,更是与社会公众接触最为密切的工程机械产品.2020年,我国混凝土搅拌运输车产销规模超过10万台,在全球混凝土搅拌运输车产销总量占比超过70％. 然而,超载超速、拐弯侧翻、盲区碾压非机动车,搅拌车引发的恶性交通事故频繁见诸于媒体,对人民群众生命财产安全...     

新型混合动力混凝土搅拌运输车探究

目前,环境污染与能源短缺已成为各个国家需要重点解决的问题,传统车辆工业的可持续发展也必然面对着这双重的压力。在工程机械领域,节能减排得到了各大主机厂的重视,混凝土搅拌运输车作为重卡型工程车辆在使用过程中由于能耗高,经济性差,性能也一直有待改善。针对混凝土搅拌运输车,通过分析行业内现阶段混凝土搅拌运输车现状,对比传统燃油、混合动力混凝土搅拌运输车几种方案的优缺点,得出混合动力混凝土搅拌运输车具有一定优越性等结论,提出目前阶段具有优势的混合动力方案,为混合动力技术在混凝土搅拌运输车领域的应用提供思路。     

JY—3000型汽车式混凝土搅拌运输车操作使用维护要点

ＪＹ—３０００型汽车式混凝土搅拌运输车操作使用维护要点杨百成（陕西省建一公司）按照混凝土施工工艺的需要，混凝土搅拌运输车主要是把搅拌站拌制好的混凝土运到较远的施工工地，在运输途中能继续作缓慢的搅拌，以防止混凝土产生分层分离析现象，从而保证混凝土质量。...     

华山牌小立方混凝土搅拌车

陕汽集团宝鸡华山工程车辆有限责任公司多年来一直致力于混凝土搅拌运输车产品的研发工作.公司结合我国混凝土搅拌运输车容量"多大少小"的现状,适时推出了3～6m3小立方混凝土搅拌车.该车整车外观协调美观,产品轴荷分布合理,宽车架,低重心,保证了车辆行驶的稳定性、可靠性.该产品广泛适用于桥梁、隧道及城乡基础设施建设.     

山推楚天HJC5311GJB型混凝土搅拌运输车

<正>楚天牌HJC5311GJB型混凝土搅拌运输车由山推楚天工程机械有限公司生产制造,该产品底盘选用中国陕汽德龙国Ⅲ底盘改装而成,具有良好的动力性、机动性、舒适性、经济性和使用的可靠性。该混凝土搅拌运输车发动机动力强劲、节能环保型,油耗量低,经济性好,其排放污染物指标达国Ⅲ标准。采用了高强度、宽断面车架,能有效降低车辆重心高度,加强型前、后     

甘肃将拥有自产混凝土专用车辆生产企业

正从有关部门获悉,经工业和信息化部同意,甘肃建投公司将新建专用汽车生产企业。工信部同时就甘肃建投装备公司混凝土搅拌运输车制造项目发出了备案确认函。这意味着,在不久的将来,甘肃省将拥有自己的混凝土专用车辆生产企业。据悉,经工信部备案的甘肃建投装备公司混凝土搅拌运输车制造项目,总投资9.9亿元,可年产5000辆混凝土搅拌运输车、混凝土泵车等专用车辆。     

混凝土搅拌运输车高质量发展调研报告

混凝土搅拌运输车是混凝土机械各个产品门类中,销售额占比最大的产品,是工程车辆中最大的细分市场,是重卡市场的一个重要分支,更是与社会公众接触最为密切的工程机械产品. 当前,我国经济正在由高速增长阶段向高质量发展阶段转变,工程机械作为装备制造业自主创新高质量发展的典范,深入实施创新驱动发展战略,近几年来多次得到党和国家领导...     

俄罗斯混凝土搅拌运输车发展情况

在上个世纪80年代初,俄罗斯（前苏联）就开始重视混凝土搅拌运输车的研制工作,但由于生产工艺落后和产品质量差,当时有关工业部门从德国Stetter公司获得了混凝土搅拌运输车结构和生产工艺许可证,用来生产搅拌简直径为2200mm和2300mm的混凝土搅拌运输车。与此同时,引进德国技术制造混凝土搅拌运输车的工厂都装备了欧洲国家的生产设备,以便能够迅速增加产量,     

建筑机械展台

◎企业名称: 韶关新宇建设机械有限公司◎主要产品: 混凝土搅拌机、混凝土搅拌站、混凝土搅拌运输车、混凝土搅拌机、稳定土厂拌设备、混凝土清洗回收设备等九大类七十多种系列产品。韶关新宇建设机械有限公司以开发、生产、销售混凝土建筑机械为主。公司具有年产混凝土搅拌机3000台、混凝土搅拌站150台、混凝土搅拌站运输车200台、混凝土输送泵50台、塔式起重机150台、微型挖掘机100台的生产规模。◎企业名称: 华东建筑机械厂◎主要产品:“华建牌”混凝土搅拌运输车、“华建牌”混凝土搅拌站、“华建牌”混凝土输送泵车。华东建筑机械厂创…     

A Petri net simulation model for virtual construction of earthmoving operations

A common and extended Petri net simulation framework for virtual construction of earthmoving operations is developed to simulate dynamic changes of workflow and information flow in the earthmoving construction process and illustrate the constraint relationship between various operational equipment and construction restrictions. The proposed framework considers factors that influence earthmoving operations including randomness of construction activities, individual preference of equipment scheduling, and constraint relationship between equipment and construction environment. With the given equipment availability and project indirect cost, the framework can predict construction situation, equipment utilization rate, estimated duration and cost to achieve visualized and intelligent scheduling of virtual construction process in earthmoving operations. The simulation process is conducted on the CPNTools platform. The data required by the research were collected on-site in an actual case. The randomness of construction activities in earthmoving operations and main factors influencing construction are simulated. The sensitivity analysis for the model is carried out. The study will provide technical support and a management basis for equipment scheduling of earthmoving operations.     

土方作业设备管理虚拟施工模型及仿真分析

以土方施工过程中的设备管理为研究对象,基于Petri网理论和工作流模型原理,构建了土方作业虚拟施工9元组有色Petri网仿真模型。模型描述了施工过程中工作流与信息流的动态变化,考虑了各种作业设备与施工约束条件之间的关系。根据施工作业的设备数量和项目成本等信息,对土方作业不同设备组合的施工情况、预计完成时间、成本及设备使用率进行仿真模拟和讨论。仿真模型基于CPNTools平台运行,通过项目现场收集数据进行模拟,对模型进行敏感度分析和模型验证,表明该模型能够提高土方作业施工过程的仿真结果准确度。     

CRTS Ⅲ型板式无砟轨道自密实混凝土新型中转料斗的研发与实践

自密实混凝土入模前应检测拌和物的温度、扩展度、扩展时间、含气量和泌水情况等。在搅拌罐车运输不便的场合，新拌自密实混凝土在料斗中经长距离输运后，会出现大面积离析、浮浆、石子下沉等现象，这在以地铁为代表的窄小、单线隧道中特别突出。在无搅拌情况下，采用目前的运输装置，新拌自密实混凝土极易分层。本文通过技术研发和现场试验，提供一种自密实混凝土运输装置，用于灌注轨道板时的中转运输，解决了在地形落差大、坡度较陡的施工环境中的运输难题。     

工程机械故障控制理论与方法

针对工程机械中关键部件的故障特点,提出了工程机械故障控制理论和方法.通过对设备关键部件进行性能评估及剩余寿命预测,实施工程机械预维护,从而有效实现工程机械故障控制.首先介绍设备状态演化过程;然后提出工程机械故障控制方法及系统架构,其中RBF(Radial Basis Function,径向基)神经网络特征趋势预测为关键...     

工程机械多功能试验合控制系统剖析

工程机械多功能试验台用于工程机械的牵引及加载试验.该试验台可悬挂工程机械的多种工作装置,以研究工程机械工作装置的作业机理和性能参数选择.试验台主要由机械结构系统、液压系统、控制系统、测试系统和电力系统等组成.介绍试验台控制系统的结构组成、控制原理和技术特点.     

Interaction analysis for vision-based activity identification of earthmoving excavators and dump trucks

Activity identification is an essential step to measure and monitor the performance of earthmoving operations. Many vision-based methods that automatically capture and explain activity information from image data have been developed with economic advantages and analysis efficiency. However, the previous methods failed to consider the interactive operations among equipment, and thus limited the applicability to the operation time estimation for productivity analysis. To address the drawback, this research developed a vision-based activity identification framework that incorporates interactive aspects of earthmoving equipment's operation. This framework included four main processes: equipment tracking, action recognition of individual equipment, interaction analysis, and post-processing. The interactions between excavators and dump trucks were examined due to its significant impacts on earthmoving operations. TLD (Tracking-Learning-Detection) was adapted to track the heavy equipment. Spatio-temporal reasoning and image differencing techniques were then implemented to categorize individual actions. Third, interactions were interpreted based on a knowledge-based system that evaluates equipment actions and proximity between operating equipment. Lastly, outliers or noisy results were filtered out considering work continuity. To validate the proposed framework, two experiments were performed: one with the interaction analysis and the other without the analysis. 11,513 image frames from actual earthmoving sites in total were tested. The consequent average precision of activity analysis was enhanced from 75.68% to 91.27% after the interaction analysis was applied. In conclusion, this research contributes to identifying critical elements that explain interactive operations, characterize the vision-based activity identification framework, and improve the applicability of the vision-based method for the automated equipment operations analysis.     

现场混凝土搅拌站的管理

结合恰希玛核电站C3/C4项目施工实践,对现场混凝土搅拌站的管理经验进行了总结,分别阐述了该项目建造承包商搅拌站在管理制度的落实、配合比、计量设备校验、混凝土运输等方面的管理,指出良好的质量控制在于制度和程序的有效执行。     

电传动技术在工程机械上的应用

介绍电传动技术的发展过程,并对各类型电传动系统进行对比。电传动技术主要应用于工程机械行走驱动系统及工作驱动系统,介绍电传动系统结构及具体应用实例,展望了电传动技术在工程机械领域的应用前景。     

专家热议 连续式搅拌设备将破藩篱

长期以来,连续式沥青搅拌设备由于受原有公路施工规范所限,在国内推广几经波折,业界也对其与间歇式沥青搅拌设备争议不断。2011年4月12日,由中交西安筑路机械有限公司承办、中国公路学会养护与管理分会主办的沥青路面低碳环保拌和新技术及厂拌热再生新工艺应用发展研讨会在北京胜利召开。     

Automated project performance control of construction projects

Real-time control of on-site construction is a growing field still in its infancy. The most impressive developments to date are in the area of earthmoving operations where quality control tools and tools to support the functionality of earthmoving equipment operators have been introduced—the main ones are described in this paper. A number of research efforts to fully automate project performance control of various project performance indicators have been carried out at the Technion in recent years. These are also briefly described together with the concept of measuring indirect parameters and converting them into the sought indicators. These are (1) labor and earthmoving productivity based on measuring the location of workers or earthmoving equipment at regular time intervals; (2) progress based on the above data or data collected from a tower crane; (3) a comprehensive control of construction materials starting by monitoring orders and purchasing up to the movement of the materials on site; and (4) monitoring the status of guard rails to prevent falls from heights.