BRETT JAMES KAYE,ALEX JAMES STEVENSON,JUSTYN PETER SMYTHE
申请号：
NZ62464814
公开号：
NZ624648A
申请日:
2014.05.07
申请国别(地区):
NZ
年份:
2015
代理人:
摘要：
Disclosed is a timber harvester head for processing multiple tree trunks together where the speed of opposing or complementary rotary feed wheels are varied according to a controller mode, to allow accurate length measurements of the stems to be carried out. The timber-working device includes a frame that includes a feed axis. A drive system is configured to feed at least one stem along the feed axis, the drive system including first and second drive arms pivotally attached to the frame on respective first and second sides of the feed axis. The first drive arm includes a first rotary drive having a first wheel, and a third rotary drive having a third wheel is mounted on the frame on the first side of the feed axis. The second drive arm includes a second rotary drive having a second wheel, and a fourth rotary drive having a fourth wheel is mounted on the frame on the second side of the feed axis. At least one processor is configured to control operation of the rotary drives, such that in a first mode the speed of the respective wheels of the rotary drives on the same side of the feed axis is substantially the same, and in a second mode the speed of the respective wheels of at least two rotary drives on opposing sides is substantially the same. A method of use and computer code is also disclosed.
