Abstract
This study analyzed the difference between the steel worm gear in the worm type track regulator and the commonly power hourglass worm. And a strength design method of steel worm gear pair in the track regulator was presented based on the design method of hourglass worm gear: According to the condition of manual adjustment, the strength design of the worm gear pair worm material is tin bronze material , select primary center distance a1, And then according to the difference on the carrying capacity the steel worm gear and tin-bronze worm gear, correct primary center distance a1, Finally check the contact strength of tooth surface when locking condition.
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