牵引车

Caterpillar tractor

内燃拖拉机，柴油机牵引车

The products include reach stacker, empty container handler, forklift car and terminal tractor etc..

经营产品包括正面吊、叉车、空箱堆高机、集装箱牵引车等。

This paper uses the ADAMS software to set up a dynamic model of tractor-trailer combination consisting of one tractor and five trailers with a total of 13DOF. The effects of drawbar length, articulation joint position on path following performance are investigated using parameter analysis method.

本文应用机械系统分析软件ADAMS建立了由一节牵引车和五节双轴转向拖车组成的汽车列车系统13个自由度的动力学模型，采用模型参数化分析方法，讨论了牵引杆长度、主车与拖车和拖车与拖车的铰接点位置对主车与拖车轨迹同辙性的影响。

The project includes: stock preparation center (annual yield capacity: 100,000t stock), small-tonnage diesel forklift department (annual yield capacity: 20,000 forklifts of H and G series), electrical vehicle department (annual yield capacity: 10,000 electrical vehicles); driving bridge and gear box department (annual yield capacity: 35,000 driving bridges and gear boxes); large-tonnage forklift department (annual yield capacity: 6,000 large-tonnage forklifts) and affiliated portal department (annual yield capacity: 60,000 portals); sheet parts department (annual yield capacity: 60,000 sheet parts for forklift); drafter department (annual yield capacity: 5,000 drafters); equipment department; large-sized loading machine department (annual yield capacity: 10,000 loading machines); heavy machinery department (annual yield capacity: 200 heavy-duty forklifts).

包括：备料中心（年下料量达10万吨），小吨位内燃叉车事业部（年产 H 系列、 G 系列叉车20000台），电动车辆事业部（年产10000台电动车辆），桥箱事业部（年产35000台驱动桥和变速箱），大吨位叉车事业部（年产大吨位叉车6000台），以及为叉车配套的门架事业部（60000台门架）、薄板件事业部（60000台叉车的薄板件），牵引车事业部（5000台牵引车），装备事业部，大型装运设备事业部（年产10000台装运设备），重装事业部（年产200台重型系列叉车），同时园区内还设有技术研发中心、办公设施、生活服务设施、公用系统等。

Orders that holders of large passenger cars, tractors, city buses, medium-sized passenger cars, large trucks, electric trolley buses, trams quasi-driving type of drivers, check the physical condition every two years.

111号令规定，持有大型客车、牵引车、城市公交车、中型客车、大型货车、无轨电车、有轨电车准驾车型的驾驶人，每两年进行一次身体条件检查。

The main contents and contributions of the paper are summarized as follows:The matching technology between drum electromagnetic brake and vehicle is studied and the braking force distribution coefficient of the tractor and trailer is confirmed. According to the related standard, the mathematic model of the braking moment which the electromagnetic brake should provide has been ascertained using the matching theory. The matching technology of trailer train brake system has been introduced in the type selection and analysis of the brakes.

本文针对电磁制动器设计的关键技术进行研究，以建立电磁制动器集成设计平台为目标，主要开展了以下几个方面的研究内容：对汽车列车制动力匹配技术进行了研究，确定了牵引车和房车的制动力分配系数，依据相关标准运用制动器与整车性能相匹配的理论，建立了房车所需制动力矩的数学模型，用以对制动器进行选型设计，并给出了集成设计平台中整车匹配模块的算法流程图。

Uses MATLAB software to carry on the computation to 6×4 the contractor power efficiency,discovers automobile each related parameter to the power efficient influence rule,determined the influence power efficient various essential parameter,through adjusts each kind of correlation disposition to achieve improves the entire vehicle power efficient goal.

采用MATLAB软件对6×4重型牵引车的动力性经济性进行了计算，确定影响动力性经济性的各关键参数，通过调整各种相关配置达到改善整车动力性经济性的目的，并通过整车道路试验验证计算结果，采取优化措施改善整车的动力性经济性。

One semitrailer towed vehicles are mainly Sweden VOLVO, Japan and China MITISHUBISHI different types of tractor-semitrailer tractor ,420-280-horsepower power, compatible with various types of semi-trailer more than 30 Taiwan.

其中半挂牵引车辆主要是瑞典VOLVO、日本MITISHUBISHI及国产各种不同类型的半挂牵引车，420-280马力的强劲动力，与之配套的各种型式的半挂车30余台。

Company's domestic main products:semitrailer tractor,dumper,,sanitation truck, garbage truck, watering motor car,, fuel tankers, cementing trailer, which are of different size of large, medium and small and are produced by China Heavy Duty Truck and Shaanxi Heavy Duty Truck .

公司国内主营：牵引车、自卸车、环卫车、垃圾车、洒水车、低平板、框架板、油罐车、散装水泥车等大、中、小型车辆，品牌包括：中国重汽、陕西重汽。

Based on the experiments of physical properties of desert sand,the driving force of running desert wheeled cross-country vehicle were obtained by calculating force between tire and sand.The experiments about pressuring grass resistance of lengthways lay out grass mechanism were done.According to the vehicle terramechanics theory,desert trafficability of straw-checkerboard sand barriers paving robot was analyzed.

本文在测试沙土物理特性和选择沙漠车的基础上，依据车辆地面力学理论，通过分析、实验和计算草方格铺设机器人的行驶阻力以及牵引车的牵引力，讨论防风固沙草方格铺设机器人在沙漠中的通过性。1沙土特性与牵引车参数1.1沙土的物理特性该机器人是通过轮胎与地面的相互作用力推动其前进。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。