| 摘要 |
A hoop is shaped as an elongated plate with a cut as a semicircle in lower part thereof. On both sides of the cut on the end surface threading openings are placed. The hoop is made of sheet products with a row of reach-through openings inside of the contour. One of the sides of the reach-through openings, placed in the upper part of the hoop, is made in parallel to the even end surface of the hoop. In the places, where parallel surfaces are arranged, openings for fixing the cab of a combine harvester are made. The maximum rigidity of the construction of the hoop in three planes is provided, mass of a product is reduced and the weldability is improved, that in turn lowers defects while making the hoop and provides the reliability of using thereof.
|
