| 摘要 |
<p>One or more running wheels, with guidance in a groove on a rail, are provided on travelling gear for working units in machinery construction, steel works or similar, esp. for welding machine carriers and roller blocks. The wheel is in the form of a flangeless running roller (2), running on the head (5) of the grooved rail (4). It is fitted with a guiding device (6) with two or more conical rollers (8), guided in the groove (3), with room for play (S), at an interval apart and turning about vertical axles (7). There are pref. two, adjustable relative to the wheel, and set on opposite sides (9,10) of the groove.</p> |
