Modified male iron dual construction equipment excavator excavator railway sleepers fixture is our new design production of railway maintenance belong to one of the working device, it can be fast in the front end of the connector installed on the excavator working device is divided into exhaust type telescopic grasp 7 (5) apply to 5-16 tons excavator use railway construction equipment - iron and drivers converted at the same time, our factory production of the iron amphibious excavator sleepers fixture, or walk on the railway track excavator at the bottom of the device, more efficient and convenient in maintenance A railway wheel system lifting and driving device for a combined railway excavator includes a frame and a push shovel. The front of the frame is articulated with a push shovel, and a pair of follower wheels are installed behind the push shovel. The rear middle of the push shovel is articulated with a front hydraulic cylinder between the front of the frame, and the push shovel is driven by a hydraulic cylinder to make the driven wheel rise and fall; Described in the frame of the hinged rear driving wheel bracket, bracket of driving wheel is installed on a pair of driving wheel, and the central rear driving wheel bracket and frame hinged between the back-end after a hydraulic oil cylinder, make through hydraulic cylinder drives the driving wheel bracket after driving wheel lifting, described the initiative is driven by hydraulic motor of the utility model through the existing crawler excavator chassis (computer hinge can be driven by hydraulic system the railway lifting gear train, make ordinary crawler excavator can run along the railway, can be widely used in railway line to repair the new line set up railway line LanGou construction on both sides