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Motor-wheel repair bench for mining dump trucks
Rotary manipulator bench for disassembling and assembling motor-wheels weighing up to 12 t: hydraulic tilting and rotation of the assembly, detachable press tooling and no-load run-in of the gearbox.
We will send photos and drawings of the equipment on request via the contacts page.
Equipment
Description
The motor-wheel of a mining dump truck combines the traction motor, planetary gearbox, hub with bearings and brake mechanism into a single assembly weighing up to 12 t. The bench is intended for electric drive repair sections where such assemblies are stripped after removal from the machine, the bearings, planet gears and seals are replaced, and the unit is reassembled.
The assembly is mounted on the faceplate of the tilting head and secured through an adapter flange for the specific motor-wheel model. The head is tilted by hydraulic cylinders from a vertical axis position to horizontal and rotated about its own axis by a worm gear drive, so every stage of the gearbox and the hub cavity is presented to the fitter at a convenient height. The support column takes the overturning moment and is anchored to the floor.
For pressing hub bearings and planet gear rings out and in, the bench is equipped with a detachable hydraulic press that mounts on the faceplate in place of the adapter flange. After assembly the gearbox is turned by the bench run-in drive at reduced speed, which allows the gear mesh and freedom from binding to be checked before the assembly is installed on the machine. On request the delivery includes adapter flanges for several models, an oil collection tray and a service platform.
Features
Design features
- Two axes of orientation — 0–90° tilting and 360° rotation open access to every gearbox stage and the hub without re-slinging
- Detachable hydraulic press — a 1000 kN press mounts on the faceplate and presses bearings out and in directly on the bench
- Check after assembly — the run-in drive couples to the traction motor shaft and turns the gearbox at low speed, allowing the mesh to be assessed before installation on the machine
- Changeover between models — adapter flanges for different models are exchanged without dismantling the head; changeover takes no more than 30 minutes
- Oil collection and safety — a tray under the faceplate collects residual oil, and pilot-operated check valves hold the head if system pressure drops
Specifications
Technical specifications
| Parameter | Value |
|---|---|
| Load capacity | 12,000 kg |
| Head tilt angle | 0–90° |
| Faceplate rotation angle | 360° |
| Faceplate rotation speed | 0.2–1.0 rpm |
| Faceplate diameter | 2200 mm |
| Detachable hydraulic press force | 1000 kN |
| Gearbox run-in drive | 3 kW, 0–50 rpm |
| Hydraulic system working pressure | 20 MPa |
| Power unit motor power | 11 kW |
| Power supply | 3×380 V, 50 Hz |
| Control | fixed control panel, radio remote |
| Overall dimensions (L×W×H) | 4500×3000×3300 mm |
| Weight | 9500 kg |
Adapter flanges and press force are selected for the motor-wheel models in the customer's fleet; for assemblies heavier than 12 t the bench is manufactured in a reinforced version.
Section
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Request a commercial proposal and lead time
Send us your technical assignment or specify the rolling stock series — we will prepare a quotation within one business day.