木材抓斗的旋转装置

Rotation device of timber grapple crane

木材抓斗起重机在抓取原条木时，为保证抓斗可将任意方向放置的原条木抓起，需要抓斗自身能够转动。我们研制的与起重机配套的电动圆锥齿轮旋转装置可实现抓斗的旋转运动。文中介绍该旋转装置的结构、工作原理及特点。

In order to ensure that the logs set in random direction can be grabbed by timber grapple crane,it is necessary to make the grapple itself be able to rotate.The newly developed electirc cylindroconical gear rotation device can achieve this.This paper introduces the construction,principle and features of the device.