| 摘要 |
<p>The invention provides a pivotable and liftable support frame for plough and vehicle, which main element is a bearing beam 2, which can be lifted up-down by lift cylinder 3 and turned to left-right by beam move cylinder 4. The frame of the construction acts as double parallelogram. Namely parallelogram acting in vertical plane is formed by bearing beam 2 and connecting element 5 in cooperation with the plough 1 and fixing mount 6 on the vehicle, parallelogram acting in horisontal plane is formed by bearing beam 2 and turn cylinder 7 in cooperation with the plough 1 and fixing mount 6 on the vehicle. Support frame according to the invention differs in that due to the use of connecting element 5 the support frame maintains feature of traditional "parallelogram" of the snow ploughs, which assures that the raised plough in transport position remains parallel to the ground.</p> |
