【正文】
ide application of the latter brake drum is the work of Outer cylindrical surface, only a handful of cars will be used in car brakes. Zhangdrum brakes, mainly by the brake drum (Xingzhuang Si pot, installed in the wheel, and synchronization with the rotating wheels), brake shoes, (arcshaped parts, a group of two, shoes, with a lateral Nien Moment of friction brake lining film), fixed sales and brakecylinder, and so on. Brake, brake drum in the internal brake shoes, brake points from one end to bear the Prokiic cylinder, around the other side of the fulcrum of its outward rotation, the pressure on the brake drum with a round face, then friction Torque (braking torque). Disc brake mainly by the brake disc (installed on the wheel and the wheels on the formation of the overall rotation) and calipers (fixed to the suspension ponents on the Festival). Among them, ventilated brake discand twosolid。 mainly floating calipers clamp(singlepiston), forkfloating, such as several fixedclamp. Compared with drum brakes, disc brakes of the mechanical parts exposed, thermal properties, and as a result of reduced friction and heat generated by braking phenomenon recession, more stable braking performance, so most modern cars use the disc Brake, but in order to reduce the cost of vehicles, some cars in front disc brake use, while still retaining the rear drum brakes. Braking system of new technologies As people of vehicle safety requirements and the continuous improvement of the rapid development of electronic technology, today39。s automobile braking system have taken place in the revolutionary progress. On the one hand, the brake system through a variety of sensors for realtime monitoring of the braking system braking to provide a more efficient and effective security assurances on the other hand, automobile braking systems and other systems constitute stretches of the regional work, in Implementation of intelligent brake control at the same time, but also further reduce the energy consumption of motor vehicles。 addition, with new materials and new structure of the large number of applications, the reliability of its braking system has been further improved. to move device Spreading to move device is will provide can equip to outputly make amount of kiic energy to deliver to make to move a machine of medium, mainly have a steel wire, liquid to press the tube road patibly moves tube road. to move a machine Making to move a machine is a creation bar vehicle sport or sport trend of the parts of dint(make motive).According to make the motive Ju output way dissimilarity, making to move a machine can is divided into:The friction system moves a machine(make use of a fixed ponent with revolve a ponent work the make of the friction function creation system motive Ju of the surface to move a machine) to alleviate to soon make to move a machine and usually mention of make and move the machine indicate generally friction system to move a each kind of car adopt makes to move a machine and can is divided into the drum type system to move machine and the dish type system to move a machine two major types drum type system moves the friction pair of machine in of revolve a ponent in order to make to move drum, its work surface is a cylinder noodles。The dish type system moves a revolve of machine a ponent in order to make to move dish, take carrying noodles as work , according to revolve the gearing position of ponent dissimilarity, making to move a machine can is divided into car wheel system to move a machine again with central make to move a machine two major the