| 摘要 |
The machine has at least two vertically pivotable frames (2,3,4) with wheels (7,8,9), adjustable heightwise by a hydraulic operating cylinder, the operating pressure of which in an input connection is a function of the total wt. (Q), i.e. the combined wt. of the machine and the material it is handling. Between pivot connectors (32,33) on at least two of the machine frames (3,4) is a hydraulic unloading cylinder (31) which exerts a force (44) dependent upon the total wt. so that a rotary power torque (45) is produced around the frame pivot connectors (14,15), together with power components (62,63;62',63') on the wheels and pivot connectors. - The construction is so dimensioned that the power components provide an excess force (62,63) to the wheels (8,9) which are loaded by less than the average value of the wheel pressure, and an unloading force (62',63') on the wheel (7) loaded higher than the wheel pressure average value, so that all wheels have the same applied pressure. |
