EKG-10
EKG-10 crawler shovel with dipper 10 m3
is intended for excavation and loading mineral products and overburden rock to
transport facilities at open mine workings, for stacking and for loading works
at storage area. New structure of the dipper, due to optimization of geometry
and cutting angles, provides:
better
penetrating ability to bottom, complete dipper fillability, load cycle reduction,
decrease of digging energy consumption, loading dump trucks with capacity from
72 to 120 t and to boxcars of standard gage. Single-beam stick is made of
high-test punched tube.
The bucket is flanged to the stick stationary with high-strength bolts providing
easy replacement and high reliability (no gaps and mobility in connections). The
stick is unloaded from torsion, and is fitted with damping mechanism of duplex
action, installed in the rear stick part. A removable recurring half block with
high surface hardness is installed in the front part of the stick.
A saddle bearing with adjustable side and upper rollers for directing of stick
motion at crowd-return is applied in the excavator. This enables to compensate
wear and to reduce dynamic loads on the excavator working equipment.
Planetary gearboxes of excavator hoist and swing mechanisms in comparison with
early used gearboxes are more compact, have larger load-carrying capacity, are
reliable and durable in operation. All drives are fitted with efficient block
brakes.
Gear drives are made of high-alloyed steels with surface thermal hardening.
The excavator is fitted with electrically driven cable reel for reeling and
unreeling of the cable when the excavator is moving and during its operation in
the face. Cable reel capacity is 500 m.
The excavator is equipped with up-to-date electronic system on the basis of
thyristor converters providing independent stepless control of the main drives
and formation of optimal static and dynamic characteristics of “generator-motor”
system. The control system is provided with necessary blockings to ensure
reliable and safety excavator operation. Block design of converters provides
easy troubleshooting and repair.
The cab is spacious, sealed, provided with heating, conditioning, ventilation,
glass heating and also with vibroisolated seat.
|
Parameters |
|
| Dipper capacity, m3 | 10 |
| Working mass, t | 395,0 |
| Design mass, t | 334,0 |
| Mass of main dipper, t | 16,2 |
| Counterweight (provided by customer), t | 45-50 |
| Boom length, m | 13,8 |
| Stick length, m | 11,1 |
| Boom angle, deg | 45 |
| Maximum dumping height, m | 8,6 |
| Maximum dumping radius, m | 16,3 |
| Maximum digging height, m | 13,5 |
| Maximum digging radius, m | 18,4 |
| Digging radius at floor level, m | 12,6 |
| Height to boom head blocks, m | 14,6 |
| Height to boom head blocks, m | 12,92 |
| Rotation radius of rear part, m | 7,78 |
| Clearance under revolving frame, m | 2,7 |
| Height of cab, m | 8,6 |
| Distance from tail piece of boom to center of rotation, m | 2,4 |
| Average ground pressure during moving, kPa | 216 |
| Maximum load on dipper hanger, kN | 0,8 |
| Maximum power of mains motor, kW | 800 |
| Maximum power of mains transformer, kW | 160 |
| Design cycle duration, s | 26 |