From our equipment Power Shovel Machine we are using many equipment one of them the power shovel machine
What is the Power Shovel ?
A power shovel (also stripping shovel or front shovel or electric mining shovel or electric rope shovel) is a bucket-equipped machine, usually electrically powered, used for digging and loading earth or fragmented rock and for mineral extraction. Power shovels are a type of rope/cable excavator, where the digging arm is controlled and powered by winches and steel ropes, rather than hydraulics like in the more common hydraulic excavators. Basic parts of a power shovel include the track system, cabin, cables, rack, stick, boom foot-pin, saddle block, boom, boom point sheaves and bucket. The size of bucket varies from 0.73 to 53 cubic meters.
What are Power shovels used for ?
Power shovels are used principally for excavation and removal of overburden in open-cut mining operations; they may also be used for the loading of minerals, such as coal. They are the modern equivalent of steam shovels, and operate in a similar fashion.
Various other types of jobs such as digging in gravel banks. In clay pits, cuts in support of road work, road-side berms, etc.
The shovel operates using several main motions including:
Hoisting – Pulling the bucket up through the bank of material being dug.
Crowding – Moving the dipper handle in or out in order. To control the depth of cut or to position for dumping.
Swinging – Rotating the shovel between the dig site and dumping location.
Propelling – Moving the shovel unit to different locations or dig positions.
A shovel's work cycle, or digging cycle, consists of four phases:
1 Digging
2 Swinging
3 Dumping
4 Returning
The digging phase consists of crowding the dipper into the bank. And hoisting the dipper to fill it, then retracting the full dipper from the bank. The swinging phase occurs once the dipper is clear of the bank both vertically and horizontally. The operator controls the dipper through a planned swing path and dump height . until it is suitably positioned over the haul unit. Dumping involves opening the dipper door to dump the load, while maintaining the correct dump height. Returning is when the dipper swings back to the bank. And involves lowering the dipper into the track position. to close the dipper door.
What is a grader machine used for?
A grader machine , also commonly referred to as a road grader, motor grader, or simply a blade, is a form of heavy equipment with a long blade used to create a flat surface during grading. Although the earliest models were towed behind horses, and later tractors, most modern graders are self-propelled and thus technically “motor graders”.
Typical graders have three axles, with the steering wheels in front, followed by the grading blade. then a cab and engine atop tandem rear axles. Some graders also have front wheel drive for improved performance. Some graders have optional rear attachments, such as a ripper, scarifier, or compactor. A blade forward of the front axle may also be added. For snowplowing and some dirt grading operations, a main blade extension can also be mounted.
Capacities range from a blade width of 2.50 to 7.30 m (8 to 24 ft) . And engines from 93–373 kW (125–500 hp). Certain graders can operate multiple attachments, or be designed for specialized tasks like underground mining.