The unloader technology of WYG70 hydraulic track type swing arm grab adopts the upper part of WYS50 car unloader, which is a mature product of Bada, and the lower part uses the traveling part of the chain bucket gantry car unloader. The traveling motor part is driven by a mature hydraulic motor.In fact, the walking chassis is replaced for the tire unloader, which is suitable for the reloading operation on the railway line. Its reliability is very stable. The hydraulic system pumps, valves, seals adopts well-known products at home and abroad ; The control valve adopts the original international famous brand. In order to check the pressure in the hydraulic system, there is also a hydraulic detection point; High pressure oil pipe is connected reliably, arranged reasonably, and replaced conveniently. Oil leakage is strictly prohibited; The hydraulic oil pipe and cable are routed separately, and protective devices are installed at the exposed pipeline parts that are easy to collide with each other.
The equipment has good stability and safety in joint operation. It only takes 6-10 minutes to unload 70 tons of coal, sand and gravel , and the remaining materials can be cleaned simply . When unloading other materials, it only needs to replace the grab.Based on the rail surface ,the maximum operating range is 8 meters, the minimum operating height is - 1 meters, and the maximum operating height is 8 meters . The power is electric drive, which is driven by 4 motors. One main power, two for walking, and one for air cooling.
working performance parameters
categories | Items | unit | parameters | |
Basic dimension | track gauge | m | 6.0 | |
Base distance (center distance of two wheels on the same side) | m | 7.8 | ||
Door seat clearance dimension (distance from upper plane of rail to bottom plane of girder) | m | 5.3 | ||
Maximum turning radius of tail
| m | 3.8 | ||
power parameters | Maximum power of motor | kw | 110 | |
weight parameters | overall weight | t | 46.5 | |
main performance parameters | max working range | m | 8 | |
max rated lifting weight ( including crab weight ) | t | 7 | ||
max wheel preasure | kN | 245 | ||
max lifting weight moment | kN/m | 560 | ||
max working height((Arm head center, determined according to order requirements) | m | 8.0 | ||
max working depth | m | 0.5 | ||
Max. included angle between main and auxiliary boom | ° | 112 | ||
Min. included angle between main and auxiliary boom
| 20 | |||
walking speed (no load ) | mm/s | 0～400 | ||
max luffing time ( no load ) | r/min | 6.0 | ||
Main boom luffing time ( no load ) | full range lifting arm | s | 9.0 | |
Full range lowering arm | s | 11.0 | ||
Avenge speed of main boom luffing ( no load ) | full range lifting arm | mm/s | 118 | |
Full range lowering arm | mm/s | 96 | ||
auxiliary luffing time ( no -load )
| full range lifting arm | s | 9.0 | |
Full range lowering arm | s | 7.0 | ||
Average auxiliary luffing speed ( no load ) | full range lifting arm | mm/s | 156 | |
Full range lowering arm | mm/s | 200 | ||