2015-08-21
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| t | B bush | B | S | S 1 | d | d 1 | D 1 | l | l 1 |
Welded frames are obtained as a result of welding steel rolling elements such as channel bars, angle (L) bars, strips, sheets and others. Channel bars are used more frequently.
The height of the channel bar is determined as
H ≈ 0.1∙ Lmax,
where Lmax is the maximum length of the mechanical drive.
Obtained value of H should be rounded off to the greater side according to standard series given in table 13.7.
In order to simplify fixation of assembly units to the frame channel bars are mounted with outside flanges. For aligning the base surface for the bolt head we use skew plates (table13.8)
Table 13.7
Channels (GOST 8240-72), mm
| Number of channel | Dimensions, mm | ||
| h | b | s | t | |
| 4.9 | 8.0 | |||
| 5.0 | 8.4 | |||
| 5.1 | 8.7 | |||
| 20a | 5.2 | 9.0 | ||
| 22a | 5.4 | 9.5 | ||
| 24a | 5.6 | 10.7 | ||
| 10.5 | ||||
| 6.5 | ||||
| 11.7 |
Table 13.8
