发明名称 |
System for adjusting the rotation speed of a cross-cutting saw of a tree handling machine, especially grapple harvester |
摘要 |
An apparatus for adjusting the rotation speed of a cross-cutting saw of a tree handling machine, especially grapple harvester is provided. The apparatus is arranged to control a hydraulic cylinder connected to the guide bar of the cross-cutting saw in a power transmitting way. A line communicating with the source of pressure medium and having an adjusting unit for adjusting the pressure of the cylinder is connected to the hydraulic cylinder. The system further includes a computing unit, and a rotation speed sensor in conjunction with the cross-cutting saw for measuring the rotational speed of the cross-cutting saw. The rotational speed sensor has a data transmitting connection with the computing unit arranged to control the adjusting unit according to the measured speed.
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申请公布号 |
US6041683(A) |
申请公布日期 |
2000.03.28 |
申请号 |
US19960686927 |
申请日期 |
1996.07.16 |
申请人 |
PLUSTECH OY |
发明人 |
TIMPERI, ARTO;TAAGMARK, ANDERS;CARLSSON, LENNART |
分类号 |
A01G23/08;B23D47/12;B23D59/00;B23Q15/12;(IPC1-7):B26D5/04;B27B33/14 |
主分类号 |
A01G23/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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