CrankShaft Grinding Machine
The crankshaft grinder model MQ8260C is modified on the basis of the Model MQ8260A and intended for use in the automobiles tractors diesel engine works and their repair ships to grind the journals and crankpins of crankshafts.
Three different work speeds are obtainable by making use of the belts in the work head. The cover can be opened so that the belts can be changed conveniently.
Cross swallow-tailed chucks are selectively used in the headstock and tailstock
Friction coupling is used in the headstock transmission chain for its easy adjustment
Single layer table, with an oblique angle of 10 degree, longitudinal traverse can be operated either by hand or by power.
Wheel head rapid approach and withdrawal effeced by hydraulic means can be digitally displayed at a resolution of 0.005mm
The wheel spindle being of 80mm in diameter has good rigidity and strength
The roller ways are for wheel head movement
The bed ways and wheel head ways are lubricated in an automatic cycle by means of the oil pump. Plastic coat is adhered to the bed way.
Air cushion can be used on the tailstock providing easy adjustment. Crosswise movement of tailstock is effected.
| Model | MQ8260C | |
|---|---|---|
| Max.work diameter × Max.length | ø580x160 mm | |
| Capacity | ||
| Max. swing over table | ø600 mm | |
| Work diameter ground | ø30-ø100 mm | |
| Throw of crankshaft | 110 mm | |
| Max. work length ground | ||
| In 3-jaw chuck | 1400 mm | |
| Between centres | 1600 mm | |
| Max. word weight | 120 Kg | |
| Workhead | 300 mm | |
| Centre height | 25, 45, 95 r/min | |
| Wheelhead | ||
| Max. cross movement | 185 mm | |
| Wheelhead rapid approach and with drawal | 100 mm | |
| Wheel feed per turn of cross feed handwheel | 1 mm | |
| Per grad. Of cross feed hand wheel | 0.005 mm | |
| Grinding wheel | ||
| Wheel spindle speed | 740, 890 r/min | |
| Wheel peripheral | 25.6-35 m/sec | |
| Wheel size (O.D. × Bore) | ø900 x 32 xΦ305mm | |
| Table | ||
| Table travers per turn of handwheel | Coarse | 5.88 mm |
| Overall capacity of motors | Fine | 1.68 mm |
| Overall dimensions (LxWxH) | 4166 x 2037 x 1584mm | |
| Weight | 6000 kg |
