Road milling machine for working road or ground surfaces

摘要

A road milling machine includes a machine frame, front wheels or tracks, rear wheels or tracks, and a milling drum supported from the machine frame between the rear wheels or tracks. The front wheels or tracks are mounted on pivoting columns. Steering levers are attached to the pivoting columns. A steering tie rod includes a connecting part and a projecting arm. The connecting part is connected to the steering levers. A steering cylinder is connected to a free end of the projecting arm.

主权项

1. A road milling machine for working road or ground surfaces, comprising:
a machine frame including a lateral outer side; left and right front wheels or crawler tracks, and left and right rear wheels or crawler tracks, supporting the machine frame; a milling drum supported from the machine frame between the rear wheels or crawler tracks, the milling drum including an end located substantially flush with the lateral outer side of the machine frame such that the lateral outer side defines a zero-clearance side to enable milling close to obstacles; left and right height adjustable lifting columns connecting the left and right rear wheels or tracks to the machine frame such that a milling depth of the milling drum is adjustable by adjusting a height of the lifting columns; left and right pivoting columns connecting the left and right front wheels or tracks to the machine frame, each pivoting column having a pivot axis; left and right steering levers connected to the left and right front wheels or tracks, respectively, so as to steer each of the front wheels or tracks in steering angles about the pivot axes of their respective pivot columns; a steering tie rod including a rigid connecting part and an arm projecting from the connecting part, the connecting part coupling the steering levers of the front wheels or tracks to one another for synchronous adjustment of the steering angles; and at least one steering cylinder including a free end coupled to the arm of the steering tie rod to adjust the steering angles; wherein the arm of the steering tie rod extends away from the connecting part and between the pivoting columns, with the connecting part and the steering cylinder being arranged on opposite sides of an imaginary line connecting the pivot axes of the pivoting columns.