Railway ballast bed stone ballast trimming device

The utility model provides a railway ballast bed stone ballast trimming device which comprises a vehicle body frame, a first motor, a transmission mechanism and a plurality of rotary trimming mechanisms, the first motor is installed on the vehicle body frame, and the rotary trimming mechanisms are rotatably installed at the bottom of the vehicle body frame. The axes of the multiple rotary trimming mechanisms are parallel to the advancing direction of the vehicle body frame, and the first motor is connected with the rotary trimming mechanisms through the transmission mechanism and drives the rotary trimming mechanisms to rotate clockwise and anticlockwise. By designing the railway ballast bed stone ballast trimming device with the vehicle body frame, the first motor, the transmission mechanism and the multiple rotary trimming mechanisms, railway ballast bed stone ballast is dialed, stone ballast between sleepers is automatically trimmed, after construction of a tamping vehicle, the stone ballast trimming work