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Tree, stump and post puller
专利权人:
Christian Lane Maxwell
发明人:
Christian Lane Maxwell
申请号:
US15330203
公开号:
US10015937B2
申请日:
2016.08.22
申请国别(地区):
US
年份:
2018
代理人:
摘要:
An apparatus for extracting trees, stumps, posts and similar structures from the ground is attached to a 3-point hitch tractor accessory. The apparatus comprises a base frame and a lifting frame. The base frame includes a pair of vertical guides for confining a corresponding pair of vertical rails on the lift frame. A piston/cylinder type of linear motor is connected between the base frame and lifting frame to translate the lifting frame relative to the base frame. A pair of independently controlled gripping cylinders that are connected to respective gripping cams are mounted on the lifting frame. A tree is extracted by engaging the gripping cams against the tree and translating the lifting frame.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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