DONATI SOLLEVAMENTI S.r.l. - Via Quasimodo,17 - 20025 Legnano (MI) - Tel. 0331 14811 - E: [email protected]
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4.3.2 Setting up “DGT” drive units onto a bridge crane
•
“DGT” endcarriages are designed standard to be assembled to the beam girder(s) on a
bridge crane, using bolted joints;
•
Connecting elements between the “DGT” endcarriages and the girder(s) on the crane are
standard joining “beam-girder” cross-plates.
•
The joining cross-plates must be welded onto the girder(s) on the crane by the Buyer, taking
into consideration the material S235JR-EN 10027 and applicable standards;
•
The joint between the “DGT” endcarriages and “beam-girder” cross-plates must be bolted
using the screws only, in class 8.8, included in the shipment, respecting applicable
fastening and tightening torques
(fig. 14)
.
Assemble the “DGT” endcarriages to the beam girder(s) on the bridge crane following
the structural configuration foreseen, which, relative to the “beam-girder
connection,” whether in MONORAIL or DUALRAIL version, can be either:
•
L = Beam connection in “lateral” connection
(fig. 12)
1. Set the girder alongside the beam, allowing the holes on the cross-plate (1) to match those on the beam (2);
2. Insert the screws (3), taking care to maintain the nuts and rings (4) on the outside, i.e. on the plate (1);
3. Screw on and set the nuts (4) without tightening them, to allow the insertion of the centring pins (5);
4. Insert the pins (5) to the endstroke, then tighten the nuts (4), applying tightening torque as required (fig. 14).
•
A = Beam connection in “supported” connection
(fig. 13)
1. Set the girder alongside the beam, allowing the slots on the cross-plate (1) to match those on the blocks (2);
2. Insert the screws (3) into the support blocks (2);
3. Screw on and set the nuts (4) without tightening them, to allow the insertion of the centring pins (5);
4. Insert the pins (5) to the endstroke, then tighten the nuts (4), applying tightening torque as required (fig. 14).
•
L + A = Beam connection in “l supported” connection
1. Proceed as outlined at previous points
L + S
, inserting the centring pins (5) for operation A.
fig. 12
fig. 13
“DGT” beams
Beam connection in “Lateral” operation
Beam connection in “Supported” operation
Size
Ø
whe
els
(mm)
Screw class 8.8
Ø
centring pin
Screw class 8.8
Ø
centring pin
Ø
length
tightening torque
Ø
length
tightening torque
(mm)
(mm)
(Nm)
(mm)
(mm)
(mm)
(Nm)
(mm)
1
125
M 16 x 2.0
55
205
20
M 18 x 2.5
65
283
20
2
160
M 18 x 2.5
55
283
3
200
M 20 x 2.5
60
400
25
4
250
M 24 x 2.0
70
731
5
315
M 27 x 2.0
80
1070
32
400
M 33 x 2.0
90
1890
6
400 R
fig. 14
