42B/28A drive bridge product configuration parameters
Project Parameter
Bridge type 42B/28A
Basic structural form Casting bridge shell
Rated load (kg) 42000
The form of driving brake Wet brake
Hydraulic interface of driving brake M14×1.5
Driving control torque (Nm) @7MPa 64000
Parking brake disc diameter 417
A: Maximum external width (mm) 2576/2376
B: rim installation distance (mm) 2050/1850
C: Hanging installation distance (mm) 1,039/1057
Main deceleration ratio 3.727
Wheel edge speed ratio 6
Rated output torque (Nm) 110000
D: Round diameter of rim bolt (mm) 425
E: rim stop (mm) 370
Rim bolt 2×12×M22×1.5
F: Input flange and semi-axis rotation center distance 400.6
The 42B/28A bridge is the driving bridge, equipped with wet brakes. As an underground operation vehicle, the internal parts of the wet brake are made of the worlds leading brand products. Their energy density and power density are higher than those of domestic products. The whole bridge has undergone transmission tests and bridge shell fatigue tests, which has high safety and reliability.
The rigid suspension of the whole bridge and the frame can meet the needs of the three-fork arm rock drilling tway and the two-fork-arm rock drilling truck. The whole bridge structure absorbs the advantages and disadvantages of domestic and foreign industry benchmark products, learns from the strengths and makes up for the shortcomings, and has high stability and service life. This product can effectively eliminate the dependence of domestic relevant host manufacturers on foreign products.
