The invention relates to an auxiliary braking device for a chassis of an engineering vehicle. The auxiliary braking device comprises a support mounted on the chassis, wherein an oil cylinder is mounted on the support, and an oil inlet of the oil cylinder is downward; a switching rocker arm is arranged at the upper end of the support, one end of the switching rocker arm is connected with the tail end of a piston rod I in the oil cylinder, and the other end of the switching rocker arm is connected with the right end of a push rod; the left end of the push rod is connected with the upper end of a rocker arm mounted on the chassis; the lower end of the rocker arm is connected with a piston rod II in a valve body; the piston rod I in the oil cylinder is sleeved with a spring located between a piston and the oil cylinder; an electromagnetic valve is arranged at the oil inlet. The auxiliary braking device is simple in structure, can effectively brake the engineering vehicle without assistance of hydraulic power on the premise that the function and the principle of an original braking system are not changed, can quickly brake the engineering vehicle when the engineering vehicle flames out or waits around for a long time on a ramp and other dangerous occasions, improves the braking performance of the engineering vehicle on the ramp and is safe and reliable.
Auxiliary braking device for chassis of engineering vehicle
2015-08-26
Patent
Electronic Resource
English
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |