| Annotation |
Modern conditions of market economy require constant improvement of the offered goods, for successful competition. But the Russian market of large single-bucket excavators-draglines is not in the best condition to date, as for the competitiveness with foreign firms, permanent improvements are required in the existing designs of walking draglines, in particular the movement mechanism, since it is one of the fundamental parts of the machine. In view of this, an analysis has been made of the existing running equipment of all types of pacing mechanisms: three-bearing, four-bearing and multi-bearing. Positive and negative aspects of all types in the mechanism are noted. A mechanical drive of walking and hydraulic is also compared. One of the possible prospective directions in development for a three-bearing hydraulic pacing mechanism is considered
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