The product technology innovation of road and rail tractor

1, articulated frame + floating bridge frame and running part structure can achieve fast rail conversion.

The combination of articulated frame and floating bridge structure, the two components of the frame can achieve ±25 degrees of angular displacement in the plane, and can also have less freedom in the vertical plane, which provides conditions for the on-off rail of the railway vehicle, and also realizes a smaller turning radius.

2, the multi-bridge drive mode realizes the safe operation of the tractor's two-state railway.

When a tractor is running on a railway, all wheels are in play. The metal guide wheel uses the guiding effect of the rim force to ensure the normal passage of the locomotive through the curve and turnout, and the safe running along the road. The rubber drive wheel uses a high coefficient of friction to ensure good adhesion under low axle load conditions, and ADAPTS to the requirements of differential transmission. It provides conditions for improving the starting traction and lightweight of the locomotive.

3, multi-cylinder, multi-lock combination hydraulic control system, to realize the rapid conversion between the articulated frame and the whole frame.

The tractor is converted to the railway state initially, the guide wheel and the driving wheel on the floating bridge have not been compacting to the rail, and they need to be compacting through the hydraulic guide and floating cylinder, so that the eight driving wheels bear the same gravity, achieve the balance of the axle load of the four drive Bridges, and ensure that the tractor's sticking state is good.

After adjusting the posture of the tractor body on the rail, the locking cylinder on both sides of the frame is used to fix the locking iron to the locking position, and the articulated frame is locked into an integral rigid frame, which meets the requirements of safe operation on the railway.

4, load sensing full hydraulic steering + priority valve hydraulic steering system to achieve priority, flexible steering.

Load sensing flow amplification technology is used to improve the steering performance of the tractor, making the steering operation easy and flexible, stable and reliable. By using the working characteristics of the priority valve, the tractor hydraulic system can be turned first, and then the oil is distributed to the whole vehicle hydraulic system to save energy consumption and improve the utilization rate.