| 摘要 |
The present invention relates to a positioning mechanism for a gravity box auger in which the auger is hydraulically swung between its transport and working positions. The positioning mechanism includes a telescopic support arm for supporting the auger at an elevation angle relative to the gravity box and the support arm is coupled to the gravity box and the auger by swivelable couplings which permit swivelable movement of the support arm relative to both the gravity box and the auger as it is being moved between its working and transport positions.
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