合力叉车大批量“参军入伍”

11月17日，由总后东北军用物资采购局组织，军事交通学院、总后建筑工程研究所相关专家组成验收组，对安徽合力叉车宝鸡厂承制的39台0．4吨蓄电池叉车和36台0．5吨蓄电池叉车，现场逐台全数检验了产品外观、随车备件和整车性能。宝鸡厂75台0．4／0．5吨蓄电池军品叉车全部通过了部队验收组出厂验收。在总结会上验收组得出结论：该批蓄电池叉车各项性能指标达到了采购合同与战技指标要求，认定为合格产品，同意接收。     

国外叉车期刊文摘

可减少维护的蓄电池包[刊,英]//SHD.-2006,(1) EnerSys公司的新型Hawker Preminer叉车蓄电池包据称对于各种用途均可大量减少维护,包括重型和冷库作业。据称这是重型叉车作业首次受益于如此少量维护的蓄电池,大大除降低维护费用,提高了叉车利用率。使用该装置蓄电池注水间隔可达65循环,相当于单班作业3个月,还能节省可观的充电能量。据称Preminer蓄电池实际上是自维护电池,Hawker     

浅析CPD08S蓄电池叉车门架立柱焊接工艺

CPD08S型三支点后轮驱动蓄电池叉车是我厂继0．4—0．5t、1．0—1．5t系列蓄电池叉车陆续完成试制之后，在电瓶类叉车开发上的又一重要项目。     

蓄电池叉车电气防爆关键技术研究

为解决爆炸性气体环境下物料搬运的难题,本文设计了一种全新的蓄电池叉车电气防爆系统,很好地解决了爆炸性气体环境下电气防爆的难题。本文从防爆原理出发,分析了防爆蓄电池叉车在防爆背景下电路设计的难点,阐述了全车防爆设计的防爆机理,实践证明,防爆性能良好。     

国外叉车期刊文摘

新型蓄电池叉车FB35／40PE；物料搬运作业的发展促进了电驱动装置市场的发展；AC动力叉车清洁、安静、强劲；警告：安装座椅安全带可能使叉车更不安全[编者按]     

全向蓄电池侧面叉车工作稳定性仿真分析

采用UG软件对全向蓄电池侧面叉车进行实体建模,导入ADAMS软件中,运用View模块建立虚拟样机,在考虑轮胎的刚度和阻尼的情况下对叉车3种危险工况进行稳定性仿真分析,为设计提供了依据。     

叉车的选购

叉车是一种用途广泛的起重装卸运输机械,大量用于港口、码头、仓库、货场及工矿企业的货物装卸堆垛和短途运输。随着工业装卸机械化的发展,叉车不但产量大幅增长,品种也由原来单一的柴油叉车发展到汽油叉车、液化石油气叉车和蓄电池叉车。叉车的传动方式也由原来的机械传动发展到液压传动和静压传动。近20余年来,叉车产品不断采用新技术新结构,在提高技术性能、使用可靠性、操作舒适性等方面有了更大的进步,品种规格也更齐全,可以满足不同领域、不同用户、不同工作场地及不同工况的各种需要。     

平衡重式叉车最大牵引力测试方法及注意问题

本文对《JB/T 3300-2010平衡重式叉车整机试验方法》中规定的平衡重式叉车最大牵引力测试方法进行进一步研究,按机械式内燃平衡重式叉车、液力式内燃平衡重式叉车、蓄电池平衡重式叉车3种类型进行最大牵引力测试方法细分研究及测试方法确定,并提出试验过程需要关注的问题,提升各类型平衡重式叉车最大牵引力测试结果的准确性。     

电动叉车的下一驿站——交流传动叉车

随着人们环保意识的日益增加,发达国家越来越多地用电能替代石油制品作动力源。我国的法律条文和国家标准也规定了各种环境中的空气污染指标,为了达到这些要求,强制使用电动车辆的场所也越来越多。电动叉车以低噪音、无污染、便于操作控制、制动能量易于回收再利用等优点,愈来愈受到人们的普遍关注,在厂矿、车站、仓库、码头等场所广泛地使用着蓄电池叉车、牵引车。本文主要对蓄电池叉车传动系统的发展     

新产品新技术云集广州第三届品牌叉车及配件展

广州第三届品牌叉车及配件展览会于2007年3月13至15日在举办。本届展会的主题是“国际品牌叉车及配件展”,各大叉车及物流搬运设备制造商的展品覆盖了品牌叉车及配件、物料搬运设备、起重运输及相关设备。吸引了三菱、斗山、合力、杭叉、如意、友嘉、靖江叉车、天力叉车、厦工、卡斯卡特、柳工、宝骊、科尼、博索尼奥拉茂、新柴动力、山推液力、凯众、中南传动、迅启蓄电池等100多家著名企业参展。     

基于C8051F006单片机的汽车制动性能测试台的设计

研究一种反力式滚筒汽车制动力测试台。以C8051F006单片机为核心器件,设计汽车制动力采集系统,并通过现场实测对系统进行检验,该系统能够满足GB7258—2004第7.14.1条规定的汽车制动力动态测试要求,具有较高的测量精度和可靠性。     

基于 CS5464电能计量芯片的研究与应用

介绍了单相电能计量芯片CS5464,描述了其工作原理与软硬件设计,利用低功耗单片机C8051 F330实现对电压、电流等参数的精确测量。     

Development and validation of a numerical model for predicting forklift truck tip-over

The aim of this paper is to present the dynamic behaviour modelling performed for a forklift truck and the validation of this model. The intention is to develop a permanent tool allowing both common and critical driving situations (especially that of lateral tip-over) to be simulated for this type of vehicle. The medium-term aim is to use this model as a tool to facilitate designing, training and preparing safety standards with a view to reducing the number of accidents related to this machine, which, on average, still cause nearly 10 deaths each year. This paper describes the forklift truck mechanical model and the tyre model. A Pacejka's lateral tyre model was used and integrated into the forklift truck model. The interacting forces and moments between the wheels and the ground are, therefore, computed at all times. Test bench-measured data, characteristic of the dynamic behaviour of several tyres, were used to identify the parameters of the Pacejka model. We studied the limits of this model adapted in this case to tyres with characteristics different from those of the car sector. Track testing was performed using a safe-test forklift truck. The purpose of these tests was to measure trajectory characteristics (velocity, position, acceleration and slip angle) and to compare them with model-based predictions, allowing validation of the robustness and accuracy of this model. Situations involving partial (up to 15°) tip-over were included. The quantities measured during testing were compared with the calculation results obtained for identical driving configurations. There was a close calculation/measurement correlation when performing a wide ‘J-turn’ (with and without tip-over) when following circular or slalom trajectories. The calculation/measurement correlation was less close when the forklift truck performed a sharp ‘J-turn’, for example. Model limits can be derived from the observations, data processing and calculations.     

栏板货车“V型”栏板的制作与应用

通过对现有斯太尔栏板货车进行改装,改制为"V型"栏板货车,实现了运输时将厚壁套筒从单排变为双排装载,运量翻倍的目标。经验证,改装后的车辆符合检测和安全要求,同时亦符合叉车及行车装卸货物两种生产工艺的要求。     

一种轻量化翼开启式厢体的设计

本文主要介绍了一种轻量化翼开启式厢体的结构,其整体为铆接牢固的板式厢体,内部采用胶木复合木板固定在厢体骨架上,在确保厢体强度的同时,减轻了厢体自身的重量;外表面采用轻质铝合金蒙皮,美观大方。厢体两侧翼可通过安装在侧翼与前墙、侧翼与后端总成之间的四个油缸控制实现向上90°的开启,方便叉车直接在侧面进行货物装卸,装卸效率高,广泛应用于托盘产品、汽车零部件以及其它商品配送等行业。     

柴油机齿轮室总成异响分析与改进

针对某叉车柴油机齿轮室总成在常用工作转速条件下产生异响的实际问题,给出了基于连续小波变换的谱分析技术与有限元计算模态分析法相结合的方法对其异响进行分析研究。通过台架试验分析,提取了齿轮室总成异响与其激励源响应的时频相关特征,找到了引起异响的原因：齿轮室总成固有频率与柴油机宽带激励频率相吻合,产生了结构共振;通过有限元模型仿真分析,识别了不同装配条件下齿轮室总成的固有特性,确定了导致结构系统共振的薄弱环节。试验结果表明,通过增加齿轮室总成局部结构刚度,提高其固有频率,能消除齿轮室总成异响。     

软土路基的监测设计与分析

随着高等级公路、防洪堤坝、水利电力发电站的大量建设,路基滑塌、路基工后沉降过大、大型滑坡时有发生,在此背景下,监测技术得到了广泛的应用。基于此,系统地介绍软土路基监测技术的方法和内容,并通过实例提出软土路基的监测设计程序与分析方法。     

基于单片机的一种船舶智能化监测组件设计

概述了一种基于单片机集显示、分析、诊断、报警等功能的智能化监测组件,采用OPC通信组件进行实时采集显示,组件人机界面良好,结构简单,操作方便,可靠性高,符合船用监控设备通用化、标准化的发展趋势。     

不对称边跨预应力混凝土连续梁桥施工监控

该文介绍了312国道常州段新武宜运河大桥不对称边跨预应力混凝土连续箱梁施工监控的关键技术,论述了施工监控的目的与意义,阐明了线形控制及应力监测的要求、技术措施等。     

Dynamic stability of forklift trucks in cornering situations: parametrical analysis using a driving simulator

This paper describes the examination of the vehicle dynamics and stability of four-wheeled forklift trucks (FLTs) in cornering situations. Cornering at excessive speed is one major reason for fatal accidents with forklifts caused by lateral tipover. In order to increase the lateral stability of this kind of working machinery, the influence of certain important design properties has been studied using an appropriate vehicle simulation model and a driving simulator. The simulation model is based on a multi-body system approach and includes submodels for the propulsion system and the tyres. The driving behaviour of the operator has not been modelled. Instead, a driving simulator has been built up and a real human driver was employed for ensuring adequate and realistic model input. As there have not been any suitable standardised test manoeuvres available for FLTs, a new driving test has been developed to assess the lateral stability. This test resembles the well-known J turn/Fishhook turn, but includes a more dynamic counter-steering action. Furthermore, the dimensions of the test track are defined. Therefore, the test is better adapted to the driving dynamics of forklifts and reflects the real driver behaviour more closely. Finally, a parametrical study has been performed, examining the influence of certain important technical properties of the truck such as the maximum speed, the position of centre of gravity, rear axle design features and tyre properties. The results of this study may lead to a better understanding of the vehicle dynamics of forklifts and facilitate goal-oriented design improvements.