The Third Structural Type Locomotive Bogie
Dongfeng 11 bogie for high speed diesel locomotive traction motorsuspension, rotation of the hollow shaft and two-stage six-bar drivingdevice, its main features are:
• Traction motor suspension suspension, namely motor complete hanging on thesteering frame. Through the rounds of hollow-shaft and double six-bardriving device, motor output torque to the wheels.
• High flexibility of resilient side bearing structure of the spiral spring.In order to reduce the working stress of the spring, select high spring andtiles rubber secondary suspension device in series and sets the anti-huntingwith the appropriate damping shock absorber, enable locomotives to obtain agood lateral stability.
• New independent brake unit. Foundation brakes for end shaft of each set up a unit on each side of the wheel brakes, brake shoe brake in the doubleside. Middle axle wheels only a set of brake unit on one side, single sidedbrake. Brake unit with use self-locking screw brake automatic adjustmentmechanism.
In recent years, has started to develop domestic locomotive manufacturingenterprises in a bogie. Equipped with three-axis radial q DF 8B freightdiesel locomotives, was completed in September 2000 trial, and tested on thetest line of loop railway in Beijing.