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（学号）：0771437长春理工大学光电信息学院毕业设计（论文）译文Remote-controlled car transmission design遥控车传动设计姓名王垒垒学院机电工程分院专业机械设计制造及其自动化班级0771437指导教师修涛2011 年 6 月20 日TV broadcast bodywork design requirements Introduce bodywork designInstall broadcast is a comprehensive system engineering, the body is the complex system is an important part of. In the broadcast, the body part in carrying out all broadcast video recording needed, audio and peripheral equipment, provide an outside the workplace. Not only such, still must ensure the safety equipmentoperation and smooth transhipment, The design quality, not only directly affect the task of broadcast programs, but also to the whole system of safe transport equipment.Bodywork design, is the first consideration in the broadcast of the design, the first thing to do, It will have a direct relationship to other system design.Bodywork designing technical requirements for design, should according to the hull of broadcast equipment size and purpose to choose, The general is installed cameras number, the risk is bigger also. According to the former chapter 8, use the broadcast cameras, can consider to choose medium broadcast. In television broadcast often faced severe external environment, and considering carrying equipment and broadcast task too many factors such as particularity, broadcast in the modification of car when the car to the body, structure and so on a series of chassis project careful overall consideration, through special design and processing, can meet the basic requirements of television. The following are the technical requirements for design body.The safety performance of the broadcast must conform to the state auto industry standards, car body processing and chassis USES the overseas broadcast depot exterior processing technology, size and payload must conform to the state department of traffic regulations. Car chassis and selection: international famous brand high-end products, the truck chassis on all equipment shall be loaded under the condition of the truck with 20% less than 200 surplus, engine, air suspension design, power electronic speed, hydraulic control 85KM/h, air conditioning system design, driving with anti-lock brakes (ABS) emission standards, with European standards, 111 2.5 meters wide.Car body requirements:TiZong compartments 10-11 meters long, no more than is 3.8 meters high and wide 2.5 meters, the right side is four meters long pull box. Box body use fixed number of year more than 15 years, the car body structure of aluminum alloy frame, with high strength and insulation, Material requirement is accord with international standard of environmental protection, flame retardant materials. Vehicle requirements, dustproof, waterproof and sealed anti-rust, anticorrosion, preventing electromagnetic interference, antistatic, After the integration of box body must be rain experiment (including the side after pulling open box, when jose) experiments, the static pressure side tilt impact experiment. The surface with high strength and durable products in the process of paint, paint baking room. Body after processing, vehicle has left from the Angle, finally, from the smallest drive vehicle spacing, minimum turning radius basic technical parameters.Body: the space layout design requirements, and fully consider the reasonable layout of the camera, lens, earphone, tripod, cable, microphone, tools and equipment accessories storage space. For the car fixed equipment should consider appropriate carry scheme.In the national standard of vehicles, within the scope of the space as far as possible, spacious internal headroom maximization, the lateral pull section 2.2 meters, internal clear part and internal headroom wife 2.0 cars, cars GaoCheng 4 meters in vitro.According to the different type of programme production division, scientific and reasonable utilization of working space. The workspace shouldHave partition, and pass the adornment with door, audio broadcasting acoustic requirements.Car chassis and selectionGenerally speaking, the car chassis and is generally together of choose and buy, the first to calculate the weight, then the broadcast and calculate the maximum weight, total quality, Choose total capacity calculation model is bigger than that.This design calculation, for example (hereinafter data for each half xiang estimated) :The total weight of two car electronic equipment nominal total weight (1 ton) + internal cables and connectors total weight (0.3 tons) ten outsideCable and cable reels total weight (0.5 tons of air-conditioning equipment and power) and total weight (l) + containing side and tons of heavy trunk TiZong compartments (5 tons) + car chassis total weight (5.5 tons) = 13.8 tons. Maximum loading 17.25 tons.Additionally, want to consider the traffic situation and task destination of local geography environment, For been poor road conditions or the environment, should choose the output power of the engine and have left corner to corner and Outlines the chassis (in after modification, this part of the parameters change), In order to protect the precision bearing, should choose the equipment with air suspension design of air suspension system (increase chassis, can effectively increase the stability and the operation is necessary in the smallest increase car from the ground clearance and increase the car go right Angle of comparison, through calculation. Head and chassis selection for: Germany, MANLE18.280 car chassis and 18 tons, the highest quality of loading, electronic power output of 280 horsepower maximum speed did 85k: / h, exhaust emission standard requirements, chassis for double-axis braking, rear suspension system (air adjusting range to 14Omm - 80mm), to 18.5 ° Angle (left), (6.5 ° Angle, hydraulic steering system, ABS system.Bodywork design types and carsBody type selection, according to the technical requirements for broadcast medium body choice to build. At present, we have the choice of two types: the body dragged hang cabinet type body and direct box type bodywork. Straight hang cabinet is cabinet of body directly placed in vehicle chassis. Drag hanging box type body is only a few on-axis (l), or on the trailer to move. Now broadcast and dimensions of the body, but are strict standard practice. Straight hang cabinet body type hanging box type than drag of small size, because the body size by means of transport together for this decision, countries have limited body length. Generally speaking, it adopts the body from 8 to 10 metres, car - 10-12 meters to. Drag hang cabinet type body USES is 13.6 meters standards body length, but due to the design needs may be more or less. For example, do the length of 18 meters above the hull. Considering the high road, there is through the general standard limits, cannot exceed 4 meters high, usually for 3.7-390 meters, width is 2.5 meters. Because of this part of the city and the surrounding roads are narrow, many sites around the gate, and narrow space, low broadcast to think of site near the area is restricted, models. Additionally, the demand is moderate, considering the number of these factors, so the choice of pull with lateral directbox type car. Hang cabinet type body straight by lateral pull cars, can expand workspace technology area, reduce the length of the body and the height, make whole have shorter turning radius, and good road through sex, increase flexibility of moving body. Drag hanging bodywork, high center of gravity, stability, not only in the city driving speed is slow, even in the highway is compared with straight, and drag hang trailer for highway and car case typed driver requirement is high. However, until the body hangs box type, the car chassis and broadcast is permanently connected compartment, Because of the reliability of the car and car box part is the reliability of the chassis, therefore the reliability of the system reliability of normal operation. However, in the car with tow lock, in case.Car body designThe whole system design is compartments of the follow-up work, it relates to broadcast other system design. In the initial stage of design, construction, as a first consideration should choose the material, then compartments of air conditioning, consider bodywork layout and installation requirements of technical equipment, etc; put At the same time, the design details must be considered the perfect follow-up function. The car body from design to completion, need at least 4 to 5 months. Various processes are certain order, therefore, in the design of the system should have planning and management. Car layout. The car compartment, broadcast early material body USES a lot of hardwood as their framework with the period, the most commercial body design, In the 1960s began to aluminum frame, aluminum envelope special design direction. 4 when turning radius: automotive steering wheel steering, car outside the center, under support vehicles, track circle radius. Steering wheel turned to limit position for minimum radius of turn ramming turn radius of glory. Now, a better and more stable fiber materials of aluminium surface (aluminum) chromate salt a sandwich board structure of interlining, Therefore, most use these new materials and structure to build the whole body, the conventional materials is added as internal store content ark, entrances, and other auxiliary area.Through the comparison, FRP (GRP6 or FRP6) or aluminium surface material qualitative sheet intercalation sandwiches are high, with design, long service life, magnetic, insulation, sound insulation, etc.Sandwich board, according to the different surface material, is divided into: steel surface materials and aluminum/GRP surface materials. When the materials of large area, steel surface material can produce vertical crease, and aluminum/GRP surface materials (not crease) consecutive. In addition, the surface of aluminum excellent in reason, including anodized, apparent into processing, coating and electroplating, therefore, to broadcast, choose aluminium surface or surface suitable materials.For frame materials (stainless steel and aluminium), we fully consider the various factors. Stainless steel welding joint with high mechanical strength, rigidity and fatigue resistance, can satisfy the demand for hull integrity structure. Among the austenitic stainless steel, with excellent energy absorption ability, considering safety construction, it is elected. In the vehicle weight after comparison, choose steel material than aluminum material slightly heavier 10%. Through comparing, aluminum plate type: the surface of metal sheet intercalation sandwiches and mixed structure of the body. This bodywork austenitic stainless steel body frame structure (profiles do using stainless steel welding aluminum easier than because of stainless steel, aluminum) sandwiches sandwich plate surface of car do. For Windows and doors, choose body surface sandwich sandwich plateGRP. Box body side sandwich sandwich plate thickness 50 cars, total body top sheet intercalation 55mm thick sandwiches, the total volume of reinforcement and the cabins lockers by certain thickness of stainless steel. This new design of body structure, give full play to the advantages of two kinds of materials, and make a new body than the current domestic other body, has more advantages than traditional vehicle weight of car-body reduce 40%, Aluminum/GRP materials sandwich insulation sandwich board, make car is very quiet, Body structure is due to decorate, Car body USES sandwich plate containing special since maintain sandwich super structure, high strength, good resistance to impact and the support ability, to ensure the long-term stability of the hull structure, can reduce maintenance costs. In addition, sophisticatedelectronics wooden store content ark, the table at the edge of the wooden edge material selection, was processed by the hardwood, insect and moistureproof, Rappel/abseil stations should be at the man-made fabrics such as screen window instead of natural.The design and processing of carriageWhen a detailed schedule chart, after the completion of the body frame can from inside to outside began to build. From the bodywork design to completion probably need 4-5 months, then consider all equipment purchase, If the plan is completed in body, thoughtful, you can install equipment. At the beginning of the process, frame first is fixed on the car chassis rack. For special car body, chassis rack and body between the special elastic adhesive filling, can guarantee the bodywork multiple components in their long remain relatively fixed position, extended body life. When the body, the engineer will cabins sandwich plate design requirements by large Windows, doors and maintenance (etc), calculated platform, dig, then without fixed whole car chassis. For different area, we adopt profiles between sheet buckles after heightenning strength the special adhesive elastic method, minimum connection screw fastening and reduce the use of welding, hardware are stainless steel. In addition, in need of welding, choose good welding materials electroplating. On roof and floor, also used similar plank and processing method, But in these areas under the floor and big flower board inside, must design the air conditioning intake on spear strike price, exhaust pipe and cable etc. Air inlet 11 feet by ten working area through porous ceiling is completed, therefore essential in insulation layer under the appropriate design of pipe, In the porous metal plate, aluminum materials, and should choose the eye. The air filter condensation prevention. In order to avoid air turbulence generated in pipe noise, the design of many such pipe, the number of air conditioning, these specifications depending on pipes adopts non-toxic ammoniac Yun foam body. For simplified equipment maintenance, design the level off and maintenance. After repair, below half open platform made floor, ceiling upper, which makes it very convenient maintenance maintenance personnel. Maintain doors equipped with gas leading hoop, can easily open doors: all of the mouth, and the dust, shimei, and under the unified set with a key can open all the lock of the door. On both sides of the car body skirt locker, design for the camera lens, the tripod, backup, cable, tools and equipment store empty, They are designed to key can open mode. Because the body with cars, so in design and installation of the bottom side pull the two squares retractable cable protection pipe, through the cable from here to the body of internal also should be carefully considered. Within the sound broadcast require special environment, and therefore must choose sound-absorbing materials of wall and ceiling, we choose is porous sound-absorbing board (belong toimpedance compound aluminum mufflers), internal filling composite sound-absorbing material. Car floor selects anti-static floor, easy cleaning. In the equipment design, the frame and the console keep back the gap in 50, This is after wiring brought convenient, also increased the equipment of cabinet, in order to control temperature air circulation. For the broadcast from appearance, can choose their own cars in the standard color swatches, so the color to the international standard RAL9010 color car choose pure white (to go out at the camera calibration quick white balance). After the integration, car body 10.06 presidents, total height 3.75 m, width 2.5 m, right side, 4m bandwidth, can pull lm. The manufacturer to rain experiment box body (including the lateral spread), full pull box when inclined to static experiment, high impact experiment, Meet the design requirements. When our car modified in the rear car modification, rear skirt do for design of dress, car tilting such modified normal operation technical parameters for the final horn, left: from high 437mm, driving the minimum distance from the ground. Minimum turning radius, the vehicle 9.65 m.Bodywork layout desig nThe number of hull layout including partition door, the work area, etc. According to the practice of the body, broadcastIs divided into three separate areas: director area, centralization, audio area. With the setting TV production, more standardized, scientific and set each region also distribution and the corresponding locations.电视转播车车体的设计要求车体设计介绍安装转播车是一项综合性的系统工程，车体是这个复杂系统的重要组成部分。