Steering control system of loading machine

The utility model discloses a loader steering control system which comprises an oil tank, a pilot pump and a steering pump are connected to the oil tank, a flow amplifying valve is connected to the pilot pump, a steering gear is arranged on a pipeline between the pilot pump and the flow amplifying valve, and a servo motor matched with a steering column is arranged on the steering gear. A main oil pipeline connected to the flow amplifying valve is arranged on the steering pump, a third control pipeline and a fourth control pipeline are arranged on the flow amplifying valve, a first steering oil cylinder and a second steering oil cylinder are arranged on the third control pipeline and the fourth control pipeline, and a displacement sensor matched with the servo motor is arranged on the first steering oil cylinder. The steering device is convenient to operate, a traditional steering wheel is replaced by the servo motor, the servo motor is directly connected with a steering column of a steering gear, meanwhile, t