| 摘要 |
<p>The invention relates to a method for making firewood by a wood chopping machine, in which method a tree trunk (5) is fed to the wood chopping machine by means of a feeding device (2) or another suitable member; the trunk (5) is crosscut to logs (23a, 23b; 30) by a cross-cutting device (3; 31) in the wood chopping machine; the crosscut logs (23a, 23b; 30) are transferred to a splitting device (4; 32, 33, 36) in the wood chopping machine, wherein the log (23a, 23b; 30) is pushed by a splitting head (11, 32) movable by a splitting cylinder (10; 33) driven by pressurized medium against a splitting blade (13, 36) after the splitting head, for splitting the log into billets; and in which method the splitting cylinder (10; 33) is controlled by at least one control valve (14) installed in pressurized medium channels led into it. In the method according to the invention, at least the parallel movement of the splitting cylinder (10, 33) is stopped by a by-pass valve (16a, 16b) connected to at least one pressurized medium channel (20a, 20b) of the splitting cylinder (10; 33) and guiding the pressurized medium past the splitting cylinder (10; 33); and the by-pass valve (16a, 16b) is controlled by at least one control means (21) connected to the movable end of the splitting cylinder (10; 33). The invention also relates to a wood chopping machine according to the method of the invention.</p> |
