附录
附录A 英文文献
Dump Truck Overview
Compartment is equipped with automatic devices for dumping cars. Also known as dump trucks, construction vehicles, from motor vehicle chassis, hydraulic lifting mechanism, taking the composition of power devices andFreight platform.
In civil engineering, often with the excavators, loaders, belt conveyors, such as joint operations, constitute a loading, transportation and unloading production lines, to carry out earthworks, gravel, loading and unloading loo materials transport. Compartment can be loaded automatically as a result of a certain tipping point of discharge, discharge significant savings of time and labor, reduce the transport cycle, increa productivity, reduce transportation costs, and to identify the loading capacity. Transport machinery is commonly ud.
Engine, chassis and cab of the truck the same structure and general. Can train to the tipping or lateral tipping, through manipulation of the system control rod movement, tipping beyond the more common to
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promote the piston rod so that tipping inside. A small number of two-way tipping. The allocation of oil by high-pressure valves, tubing into the lifting hydraulic cylinder, inside the front fenders have a driver's safety. Engine through the transmission, hydraulic pump driven from power devices, hydraulic tipping body inside fuel tanks, hydraulic pumps, distribution valves, hydraulic lifting cylinder, control valves and tubing and other components. Hydraulic tipping body inside the tank, pump, distribution valves, hydraulic lifting cylinder, control valves and tubing and other components. Engine through the transmission, hydraulic pump driven from power plant, high pressure oil through the distribution valve, hydraulic cylinder tubing into the lift, push rod so that tipping inside. After tipping more to the common piston rod through the control system to control movement, will enable the train to stop at any position on the need for the tilt. Compartments u of its own gravity and hydraulic control ret.
美国留学的优势Dump Truck of the main technical parameters are loaded with weight, and marked volume loading. New car or car repair factory commissioning must be carried out so that the
process inside a smooth lifting action without strings. U of the site shall be the right choice of lubricating oil, saving unloading time and labor, the attention of lubrication cycle, lifting oil change schedule strictly. Shipment according to nominal load, overloading is strictly prohibited.pillow是什么意思
Dump truck classification:
1. In accordance with the carrying capacity of the chassis can be divided into ries dump truck, dump in tons of ries and ries of large-tonnage Dump;
2. By the driver dump the form of the bridge can be divided into single-, double-bridge dump, dump eight after the first four, the first four ries of ten different models;
3. By unloading the hydraulic lifting mechanism can be divided into different Monacrosporium biparietal dump and dump.
Structural analysis of the dump truck:
Mainly by the hydraulic dump truck dump bodies, cars, and its annexes constitute the frame. Hydraulic dump them inside the structure of institutions and manufacturers in various different modifications, the following compartments and the lifting mechanism in accordance with the pattern of the two aspects of the structure of that dump truck.
1、compartment typebring up
Node compartments by u of different body types can be broadly divided into: general rectangular bucket compartment and inside mine.
Ordinary rectangular compartments for the carriage of goods in bulk. Plate with subquent automatic opening and closing of institutions, to ensure smooth unloading of goods. Ordinary rectangular compartment thickness as follows: pre-board 4 to 6mm, side panels 4 to 8 mm, after the board 5 to 8 mm, bottom 6 to 12 mm. For example: dump truck licen ChengLi common standard rectangular compartment thickness as follows: 4 at the end of the first 4 side 8 5.
Inside bucket mining is applicable to a larger particle size, such as large stones of goods in transit. Taking into account the impact of goods and touch buildings, mining bucket inside the design of more complex shape, with thicker material. For example:-way power bucket mining dump truck licen compartment standard thickness as follows: 6 at the end of the first 6 edges 10, and some models in the floor on some angle iron welded to increa the train capacity of stiffness and impact resistance.
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2 、lifting body type
Dump truck lifting mechanism is the core of the primary advantages and disadvantages of discrimina
nt indicators truck.
Type lifting mechanism common current: F-type lifting mechanism to enlarge tripod, T-style tripod lifting mechanism to enlarge, double lift, the former top-lift and double rollover.
Enlarge tripod-type lifting mechanism is currently the most frequently ud means of a lift for 8 to 40 tons of dead weight, train length of 4.4 ~ 6 meters. Advantage of the structure of mature, stable lifting and cheap; disadvantages inside the frame on the main floor of the clod height of the larger plane.
Most forms of double lift truck in 6X4, it is in the cond on both sides of the bridge in front of more than one level of the tank is installed (usually 3 ~ 4), the hydraulic cylinder on the fulcrum of a direct role in the compartment floor. Double advantage of lifting the main floor for the inside frame of the closing high on a smaller plane; the shortcomings of the hydraulic system is very difficult to ensure synchronization of two hydraulic cylinders, give less smooth Health on the inside bottom of the overall stiffness higher.
Lift the top way before the simple structure, inside the frame on the main floor of the clod high plane can be very small, vehicle stability, the smaller the hydraulic system pressure, but the first trip
at the most larger-cylinder class, the high cost .
Double-sided cylinder roll force is better, less travel to achieve double-rollover; but more complex hydraulic piping, Health cited a higher rate of roll-over accident.
Dump Truck Selection:
Dump Truck with the development and improvement of domestic purchasing power, dump truck is not in the traditional n, what the living can do everything dump truck, from the design point of view is different goods, different working conditions, the development of different regions of different products. This requires urs to buy vehicles specific to the u of manufacturers.
1、chassis
In the lection of the chassis, the economic benefits that are to be considered, such as: the price of the chassis, loading quality, overloading the capacity of 100 kilometers fuel consumption, maintenance fee, etc.. In addition, urs should also consider the following chassis parameters:
① plane height on the chassis frame. General 6x4 chassis frame height on the plane for the 1050 ~ 1200. The higher the value the greater the vehicle center of gravity, the more
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easily overturned. Factors affecting the value is the tire diameter, suspension of the layout and height of the main frame ction.
②chassis rear overhang. The numerical impact of the General Asmbly of Health cited the stability of dump truck, resulting in roll-over accident of Health cited. This value is normally between 500-1100 (except truck rollover).
③ vehicle reasonable match, u and reliable.
2、upload
Dump Truck manufacturer modified the current cohabitation, choo the lection of dump truck manufacturers is equally important than the choice of products. In addition to look at products, but also the ability of equipment manufacturers, dump truck load of design, whether it is a mature technology and equipment, after-sales rvice commitment, whether or not to buy such accessories.
附录B 英文文献翻译
自卸车概述blake
extensionmanager车厢配有自动倾卸装置的汽车。又称为翻斗车、工程车，由汽车底盘、液压举升机构、取力装置和货厢组成。
在土木工程中，常同挖掘机、装载机、带式输送机等联合作业，构成装、运、卸生产线，进行土方、砂石、松散物料的装卸运输。由于装载车厢能自动倾翻一定角度卸料，大大节省卸料时间和劳动力，缩短运输周期，提高生产效率，降低运输成本，并标明装载容积。是常用的运输机械。
发动机、底盘及驾驶室的构造和一般载重汽车相同。车厢可以后向倾翻或侧向倾翻，通过操纵系统控制活塞杆运动，以后向倾翻较普遍，推动活塞杆使车厢倾翻。少数双向倾翻。高压油经分配阀、油管进入举升液压缸，车厢前端有驾驶室安全防护板。发动机通过变速器、取力装置驱动液压泵，车厢液压倾翻机构由油箱、液压泵、分配阀、举升液压缸、控制阀和油管等组成。车厢液压倾翻机构由油箱、液压泵、分配阀、举升液压缸、控制阀和油管等组成。发动机通过变速器、取力装置驱动液压泵，高压油经分配阀、油管进入举升液压缸，推动活塞杆使车厢倾翻。以后向倾翻较普遍，通过操纵系统控制活塞杆运动，可使车厢停止在任何需要的倾斜位置上。车厢利用自身重力和液压控制复位。
自卸车的主要技术参数是装载重量，并标明装载容积。新车或大修出厂车必须进行试运转，使车厢举升过程平稳无串动。使用时各部位应按规定正确选用润滑油，大大节省卸料时间和劳动力，注意润滑周期，举升机构严格按期调换油料。按额定装载量装运，严禁超载。
英语免费翻译
自卸车的分类：
1.按底盘承载能力可分为轻卡系列自卸、中吨系列自卸和大吨位系列自卸；
初中英语听力下载2.按驱动形式可分单桥自卸、双桥自卸、前四后八自卸、前四后十等不同系列车型；
3.按卸载液压举升机构不同可分为单顶自卸和双顶自卸。
自卸车的构造分析：
自卸车主要由液压倾卸机构、车厢、车架及其附件构成。其中液压倾卸机构和车厢结构各个改装厂家不尽相同，以下按车厢和举升机构的型式两个方面说明自卸车的结构。
