2640 ~ 3600mm passenger stairs body assembly is mainly composed of upper and lower longitudinal beam, step fixing frame, step plate, etc. The ladder body structure is vertical plate change. When the boarding stairs go up and down, the upper and lower stairs move parallel on four sides, and the height of the step changes from 140 ~ 200mm. The two sides of the upper and lower frames are load-bearing beams, which are made of 100×80×5mm and 80×40×3mm seamless rectangular tubes, respectively. The step fixing frame is welded with 40x40x4 Angle steel and connected to the ladder body and the lower longitudinal beam frame with pins. The step plate is pressed with δ=4mm non-slip pattern aluminum plate. When the platform rises to 3600mm, the Angle between the ladder body and the ground is 39°.
2640 ~ 3600mm hand-pushed passenger stairs technical parameters
Overall dimensions (length × width × height) mm (excluding canopy) : 6965×2230×3650
Platform size mm: 2000×1400
Ladder body armrest height mm: 1170
Front suspension mm: 525
Rear suspension mm: 1290
Wheelbase mm: 4030
Wheel base mm front/rear: 900/1550
Foot center distance mm front/back: 1990/1990
Total vehicle weight kg (excluding canopy) : 1780
Front wheel load kg: 1010
Rear wheel load kg: 770
Ladder level: 18
Channel circle Outer circle diameter mm: 14000
Departure Angle (°) : 5
Approach Angle (°) : 33
Maximum tilt Angle of ladder body (°) : 39
Ladder body inside width mm Ladder body: 1300
Tail ladder: 1120
Step height (platform 2640 ~ 3600) mm: 140 ~ 200
Height adjustment mode: step parallelogram displacement type
Pedal size mm: 300×1120
Moving door travel mm: 1150
Working platform lifting height mm: 2640 ~ 3600
Platform carrying capacity (per unit) : 6
Tire size: 4.00-8
Minimum ground clearance mm: 160
Number of passengers on the stairway: 33
Ladder artificial thrust N: ≤300