- wedge-shaped segment 40 iz then disposed on the drum core adjacent 1*e segment 42 wi’tn the cutting line 26 'in
:iI›utment with the cutting= line 29。 The wedges 42 and
, 40 are position»•d in mui rat alignment and are then welded or otherwise secured to the outer periphery of the drum core。
The second semi-circular segment 44 is then bolted or welded to tfi• periphery of the drum core in such a man- O-•r that one Slde edge thereof is aadjacent the drum f1an;;e 16, as shown in FIGURE 5。 The fourth wedge- shayed segment 4II is then disposed adjacent the section 45 with the cutting edge 36 in abutment with the cutting edge 30 whereby the grooves will be in mutual align- ment, and the third wedge-shaped segment 46 is disposed adjacent th•- wedge 48 whereby the cutting edge 38 will b•- in abutment with the cutting edge s2 of the wedge 48 arid the cutting edge 3$ will be in ab•atment with to• cutting eclgc 32。 of th»• section 35。 The segments may all be bolted or ot1i•。rv/is• secured to the core of the drum to prGvidc a continuous circumferential combined helical and parallel groove therearound in accordance with the conventional rise yooving system。 Of course, the usual en5 filler bars 22 and 2*。 are disposed between the respec- tive flanges lé and 14 and the segments disposed on the drum core to complete the preparation of: the drum for th• spooling operation。
Another type of counterbalanced cable spool g;rooving is called alternate ris• grooving system, and is particularly depicted in FIGURES 8 through 11。 This type of drum core yooving comprises a continuous combined helical and parallel groove on the outer periphery of the core similar to that in the conventional rise grooving system。 However, the length GA the drum core between the drum
:f1anges with respect to th-• diametric size at the grooving is such that a fuil number of grooves may t›e provided on the outer periphery o1 the core between the flanges。 O1 course, it is preferable to utilize tfie usual end hller bars, such as shown at $0 and ti2 in FIGURE 9, :ind in or‹Ier to do tiiis, it is necessary to eliminate one full yoove throup•hout a portion of the circumference o:I the drum whereby a half-groove spacing may be provided
, adjacent each drum flange 64 and $6 for receivinp• the end filler bars。 In order to provide the alternate rise g•rooving system on the outer p•。riphery of a drum core,
20
30
4ii
wedge-shaped segment 92。 The severed segments may ibe separated and rearranged for disposition arOund the drum core to be provided with the alternate rise grooving system。
The first semi-cylindrical section 82 may be bolted or otbuerwis• secured to the outer periphery of the drum core between the flanges 64 and 6$, as clearly shown in FIGURE 9。 be second wedge-shaped segment 86 is then di9 OSed adjacent the section 82 with the grooves in mutual alignment and in such a manner that the le:f t hand groove S4 of the section 82 is open。 The first wedge- shaped segment 84 is then disposed against the segment 86 and in alignment therewith whereby the second semi- cylindrical portion 118 may be disposed on the drum core adjacent the wedge 84。 This combination provides a cross-over of one-half groove width between the first sec- tion 82 and the s。•cond section 88 as clearly shown tn FIGURE 9, and provides a half:-groove spacing adjacent each drum flange 64 and 66 for receiving the respective end filler bars $11 and 62。 开槽电缆线筒体的方法英文文献和中文翻译(6):http://www.youerw.com/fanyi/lunwen_100039.html