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机车在牵引和制动状态下,某一轮对发生空转和滑行时,粘着被严重破坏,机车的牵引力和制动力就会受到严重影响,同时造成轮对和钢轨间的有害摩擦,为了能使这种现象的危害性尽可能减小到最小程度,8G机车设置了空转和滑行保护装置。下面就该保护装置的原理作一说明。一、空转保护当轮对发生空转后,保护系统动作,自动给空转的轮对撒砂,以恢复粘着,从而恢复牵引力。动作原理:如图1,在牵引工况下,控制电路牵引制动联锁开关SA1-Ⅰ闭合,使
Locomotive traction and braking, a wheel slip and coasting occurs, the adhesion is severely damaged locomotive traction and braking force will be seriously affected, while causing harmful friction between the wheel and rail, in order to enable The dangers of this phenomenon as much as possible to minimize the 8G locomotive set idle and taxi protection devices. The following principle of the protection device for a description. First, the idling protection When the wheel idling occurs, the protection of the system action, automatically to the idle wheel scatter to restore the adhesion to restore traction. Action principle: As shown in Figure 1, under traction conditions, the control circuit traction brake interlock switch SA1-Ⅰ closed