公开(公告)号：US5148994A

公开(公告)日：1992-09-22

申请号：US624812

申请日：1990-12-10

申请人： Franz Haider ,  Martin Zehentner ,  Johann Lileg ,  Lars Obitz

发明人： Franz Haider ,  Martin Zehentner ,  Johann Lileg ,  Lars Obitz

IPC分类号： B02C13/28 ,  B02C17/16 ,  B02C17/22 ,  D21D1/22 ,  D21D1/38

CPC分类号： D21D1/38 ,  D21D1/22

摘要： The invention relates to a segment for drum refiners provided with comminuting, in particular grinding surfaces with a projection of hammerhead-shaped cross section for anchoring on the rotor or rotor drum shell. The invention is characterized mainly in that the segment (2') of T-shaped cross section consists of a slim stem (2") and a slim flange (2"') and that the transition surfaces from stem to hammerhead (12) viewed in cross section form an angle (.beta.) of between 15 and 75 degrees, preferably of about 55 degrees, open towards the hammerhead and conveniently equal on both sides with the axis of symmetry (8) of the hammerhead of symmetrical cross section. The ratio of the stem thickness (D) to the segment height (H) conveniently amounts to between 1:5 and 1:9, preferably about 1:7, and the flange thickness (FD) on the stem is about equal to the thickness of the stem. The transistions between flange and stem and between stem and hammerhead conveniently extend along comparatively large radii of curvature (R), for instance along a radius (R) which is equal to one half the time to one time the least thickness (S) of the flange.

摘要翻译： 本发明涉及一种用于滚筒精磨机的切片，其具有粉碎，特别是具有用于锚定在转子或转子鼓壳上的锤头形横截面的突起的研磨表面。 本发明的特征主要在于，T形截面的段（2'）由细长的杆（2“）和细长的凸缘（2”）组成，并且从杆到锤头（12“）的过渡表面 ）横截面形成角度（β），其角度（β）为15至75度，优选为约55度，朝向锤头开口，并且在两侧具有对称横截面的锤头的对称轴线（8）方便地相等。 茎厚度（D）与片段高度（H）的比率通常为1:5至1:9，优选为约1:7，并且茎上的凸缘厚度（FD）大约等于厚度 的茎。 凸缘和杆之间以及杆和锤头之间的横向方便地沿相对较大的曲率半径（R）延伸，例如沿半径（R）延伸，半径（R）等于时间的一半，最小厚度（S） 法兰