SHOVEL

EKG-12A

3 - 13 - 30 t - 672 t

mStandard bucket capacityWorking bucket loadWorking weight of the machine

Working conditions andfields of application

2

The mining shovel EKG-12A (spec. TU 3141-005-00210571-2000) offered by Uralmashplant JSC is designed for mining and loading ore and overburden rock into transport vehicles (including dump cars) or in dumps.

Rock characteristics.The EKG-12A is designed for mining I and II rock categories without preliminary loosening, and III, IV, and V rock category with preliminary loosening.

Bucket capacity:3Capacity of the standard bucket is 13m (according to SAE).

Climatic conditions:Climatic modification of the machine is У1 according to GOST 15150-69. Working temperature range:

+ 45°С – 45°С

Max. temperatureMin. temperature:

: – –

Other conditions:The EKG-12A model is designed for working at the height up to 1000m above the sea level. Working environment shall be free from conductive or explosive dust.

GENERAL OPERATINGREQUIREMENTS

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– – –

The workface shall be prepared by blast-loosening (except for I and II rock categories). Average lump size of loosened rock shall be not more than 250 mm. Max. lump size is 800 mm.

Working slope angle of the machine shall be within 5 degrees. The machine shall be controlled by a trained operator. It is necessary to observe the manufacturer's requirements set forth

in the operating documentation when operating the machine. Theoretical output of the machine equipped with the standard bucket

3(according to GOST 4.377-85) is 1660 m /h. Design average overhaul period is min. 60000 working hours including time for moving the machine and preparing ramps.

Design service life of the machine is min. 20 years provided that the user observes all operation and maintenance regulations set forth in the manufacturer's manuals.

FRONTALEQUIPMENT

Frontal equipment design: rigid rack-type crowd mechanism with double-beam stick and sheave-less bucket suspension. This design ensures rigid fixation of the bucket when cutting.

Bucket.Capacity:Design:Material:

Bucket door brakes:Bucket teeth:

– – –

– – –

313m (according to SAE)cast and welded.cast front wall is made of high-manganese

steel.welded rear wall is made of low-alloyed steel.disc brakes mounted on the rear wall. secured on the front wall lip with bolts.

The yoke of the bucket is equipped with a balance pulley block fitted on a rocker. This assembly ensures uniform distribution of loads between four lines of the hoisting rope.

TECHNICAL SPECIFICATIONS

Revolving platform Design

Hoistingwinch

Swingmechanism

Leg

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–

–

–

the platform consists of two bearing parts, a counterweight assembly, and side platforms. The bearing parts and the counterweight assembly are connected with heavy-duty bolts.

four-motor single-gearbox winch with two cantilever drums secured on a shaft with keys. The winch is equipped with pneumatic brakes. Hoisting rope lines are secured on the drum with retaining plates.

the swing mechanism consists of four similar units consisting of an electric motor, a planetary gearbox, and a shaft each. Gearings are lubricated by a circulating oil-bath lubrication system. The units are located symmetrically in order to avoid generating stress on a central trunnion bearing.

consists of hinged front and rear frames.

3

MECHANISM AND EQUIPMENTOF REVOLVING PLATFORM

Gearing lubricationMaintenance platformsBucket door winch

Boom and stickStick design

Boom design

Boom suspensionCrowd mechanism

Crowd mechanism configuration

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–

– –

– –

all-welded box-section stick. Forged gear racks are welded to the bottom surface of the beams.

all-welded box-section boom made of heavy-duty steel. An axle with boom point sheaves is mounted in a bore in the boom end.

the boom is suspended on four guy ropes.single-motor mechanism. A two-stage gearbox is

built into the boom. Bearings of drive and intermediate shafts are mounted in bores in the boom body. All shafts of the mechanism are mounted in rolling bearings. All saddle bearings are supported (on their inner side) by sliding bearings

flexible couplingpneumatic brake.

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–

–

oil bath.

located near the crowd mechanism and in the head part.

mounted on the boom. The unit consists of an electric motor, a coupling, a single-stage gearbox, and a drum.

Pneumatic systemApplication

Air supply

Filtering andventilation unit

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–

–

for driving brakes and pneumatic tools. Two similar air compressor units are installed with a common 1

3m - capacity air collectorair is supplied to individual units

through pneumatic distribution valves electrically controlled from a panel in the operator's cabin. Compressed air is supplied to the carriage brakes through a swivel joint (rotary pneumatic connection).

consists of two high-power centrifugal fans and inertial dust separators. The unit maintains pressure differential in the operator's cabin.

Equipment on the platform:–

– –

Movable electric hoist (l/c: 500 kgf ) for lifting small loads on the machine or lowering them down.

Portable manual hoist.Main and auxiliary electrical equipment.

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SHOVELEKG-12А

CabinDesign

Working compartment

Restcompartment

CABIN ANDHOUSING

Housing–

–

–

Rigid frame consisting of vertical supports and horizontal beams. Cover plates are bolted to the supports. The roof consists of separate welded sections.

Quick –detachable doors are provided above the compressor unit, swing mechanism machinery, and the hoisting winch.

The housing is provided with two doors. An access ladder is located on the right platform.

CarriageDesign

Track drive

BrakesElectric motors

Track takeup deviceTrack links

Lubrication

Tracks

CARRIAGE

4

Swing gear & bearing assemblyDesign

Centraltrunnion

Roller circle

Gear rim

–

–

central trunnion, roller circle, and gear rim.

secured in the bores of the frame with a nut (lower bore) and a collet (upper bore).

–

–

it has a heavy-duty detachable cage centered on the central hub. The cage carries axles with conical single-flange rollers. The rails are made of forged billets.

solid-forged. It is secured on the bottom frame with press-fitted bushings. Free access to the fastening assemblies of the rim is provided from inside of the bottom frame.

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–

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two-deck cabin. The bottom deck houses a workbench and racks for tools and small spares. The top deck consists of two compartments: a working compartment and a rest compartment. There is also a platform for the maintenance of left and right windows.

houses a control station which consists of the adjustable operator's seat with stepless control joysticks and the control panel with signal devices and controls.

houses lockers, seats, and a table. The working compartment can be accessed from the rest compartment. The top deck of the cabin is provided with air conditioning and filtering system.

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two-track carriage with separately-driven tracks.tacks with large diameter rollers. With raised drive

sprockets and support rollers.the drive consists of two electric motors, two

mounted two-stage spur gearboxes, and two double-stage gearboxes built into the track frames.

pneumatic shoe brakes.the motors are installed horizontally on a special

bracket. They are provided with forced ventilation facilities to ensure nearly unlimited duration of the propel drive duty cycle.

hydraulic device driven by a separate pump unit.1800 mm-wide lings made of high-manganese steel

with machined track springs.Of gearboxes: oil bath. Of drive shaft rolling bearings and takeup device

sliding surfaces: lubrication by a lubricating unit.

Cable drumDrum capacity is up to 350 meters of cable if winding in two layers. The drum with a drive is mounted on a separate frame attached to the carriage. The drum is equipped with a device for uniform cable laying.

5

ELECTRICAL EQUIPMENT

Main drives - hoist, crowd, swing, and propel drives, are designed on the basis of transistor converter – motor scheme:– MCCs are manufactured by "Joint power" company;

Information system, of the machine monitors main performance parameters of the shovel and perform the following functions:–

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– –

– – – – –

–

–

Monitoring the temperature of hoist and crowd unit drive shaft bearings;

Monitoring the main drive motor bearings and MCC cabinet bearings temperature;

Monitoring main drive motors cooling air flow; Monitoring the swing mechanism oil temperature in the circulation

system; Monitoring the swing mechanism oil flow in the circulation system;Monitoring the main drive control system parameters; Monitoring the compressed air pressure in the pneumatic system. Monitoring the automatic lubrication system operation. Monitoring the machine slope angle in transverse and longitudinal

planes. Measuring the air temperature inside and outside of the operator's

cabin. Measuring the weight of rock in the bucket.

Displaying and recording the list of messages about failures, events, and system errors with dates and times.

The machine housing is provided

The machine is supplied

with LED lighting facilities.

with a laptop with software and cables for connecting to different units.

Main drive motors:– – – – –

Hoist drive: DPE-400-1/1U1 – 4 motors;Crowd drive: DPE-400-1/2U – 1 motor;Propel drive: DPE-350-2/1U1 – 2 motors;Swing drive: MPVE 120-750U2-M – 4 motors; Auxiliary transformer: dry-type transformer TSZE-250/UHL1.

The bucket door and cable drum drives

The fans, compressors, heaters, and pumps of the machine

are equipped with DC motors fed from a common static rectifier.

are driven by 220/380V AC drives fed from a step-down transformer.

The machine is equipped with a working equipment protection system, that ensures:–

– – – –

Boom protection from collision with the bucket (bucket lift limitation) and the handle above the crowd shaft (handle movement limitation).

Limitation of lateral loads when cutting Overhoist protection Rope unreeling length limitation Min. 5 surveillance video cameras .

LUBRICATION SYSTEM

Grease lubrication system: Lubrication points on machine units and assemblies

Bucket bushings:

Automatic; are automatically

lubricated with grease. are lubricated with a detachable grease gun.

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SHOVELEKG-12А

The use of the IS12 allows the user to:–

–

–

Increase the efficiency of the machine operation due to on-line production process adjustment based on accurate information about the machine performance during a shift or a month linked to the name of the machine operator;

Increase the operator's awareness about the machine equipment condition and the machine output per shift;

Ensure longer service life and higher reliability of the equipment.

FUNCTIONSOF THE IS12

6

1. Temperature monitoring: 8. Monitoring the parameters of the automatic grease lubrication system:

9. Measuring the weight of rock in the bucket.2. Monitoring the compressed air pressure in the 10. Recording the machine output per shift, month, or pneumatic system.year linked to the name of operator:3. Monitoring the oil flow in the swing mechanism

gearbox lubrication system.

4. Monitoring the machine slope angle in transverse and longitudinal planes.

5. Measuring the rotary platform swing angle.

6. Recording the working time of the electrical and 11. Collecting, handling, and storing actual performance mechanical equipment.data.7. Monitoring the operation of the main drive control 12. Analyzing collected data about the condition of the system operation and the automatic protection system.machine equipment.

13. Displaying required information on the operator's monitor installed in the cabin.

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r

temperature of the main drive bearingsmonitoring the condition of the system components temperature of the crowd gearbox shaft bearings

(feeders and pump motors); temperature of air in the operator's cabinmonitoring the grease level in tanks.temperature of air outside the cabin.

ecording the weight of loaded rock;recording the quantity of loaded trucks;recording the time of performing primary and auxiliary

works, movement time, and downtime;recording active and reactive power consumption.

Generating, displaying, and storing a list of warning and emergency messages with their time and dates.

INFORMATION SYSTEM

The information system IS12 is designed for mining shovels EKG-12A as a facility for collecting, handling, and displaying information about main performance parameters to the user. The system is designed for the automation of the equipment operating and diagnostics processes, as well as handling, storing, displaying, and recording the performance parameters of the machine.

SUBGROUPS OFIS12 FUNCTIONS

Information functions–

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measuring, calculating, and storing (even with no primary power supply) process and technical data about the machine performance;

HMI;manual input of information required for setting

the operating mode and basic data; generating and displaying collected information

and diagnostic data about the machine performance on the operator's screen in a user-friendly style. The information can be displayed under the operator's request or automatically depending on certain conditions. The information is visualized on different system screens;

storing the machine performance data for a shift, month, or a year, with indication of the operator name;

storing the list of all emergency and warning messages with indication of their dates and times.

Diagnostic functions–––––

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m m m m

m

m

monitoring the temperature of the main drive bearings;onitoring the Temperature of the crowd gearbox shaft bearings;onitoring the Temperature of the crowd gearbox shaft bearings;onitoring the compressed air pressure in the pneumatic system;onitoring the oil flow in the swing mechanism gearbox lubrication

system;onitoring the parameters of the automatic grease lubrication

system;onitoring the limit levels of controlled parameters. Generating

audible alarm signals and on-screen warnings; predicting possible emergencies basing on the analysis of available

data about the actual condition of mechanical and electrical equipment.

Functional diagramof the IS12 information system

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SHOVELEKG-12А

Panel PCwith 15" screen

Gate

Gate

Gate

Gate

Video camera

Video camera

Video camera

Video camera

Video camera

Electricitymeter

Main and auxiliarydrive control system

Inclinometer

Converter

Carriage

Converter

Temperaturetransducers

Temperaturetransducers

Temperaturetransducers

Digitalsensors

7

A

K

J

N

C

G

I H

B

E

D

M

L

OPERATING PARAMETERS3Main bucket capacity, m (SAE J67

3Bucket capacity range, m

Working bucket load, t

Max. bucket sheave force, t

Crowd force, max, t

Time of working cycle, s

Digging height, max, m [ C ]

Digging radius, max, m [ D ]

Clean-up radius, m [ Е ]

Dumping radius, max, m [ В ]

Dumping height, max, m [ А ]

)[ C ]

[ ]

[ C ]

[ C ]

[ C ]

[ C ]

MASSES AND OVERALL DIMENSIONS

Working mass, t

Mass of ballast, t2Ground bearing pressure, MPa (kg/cm )

Height of boom point sheaves, m

Height of A-leg, m

Max. clearance radius over boom point sheaves, m

Max. clearance radius over revolving platform, m

Clearance under revolving platform, m

Clearance under lowest point, m

Operator's eye level, m

Overall width, m

[ G ]

[ G ]

[ G ]

[ G ]

[ K ]

[ H ]

[ I ]

[ J ]

[ M ]

[ N ]

[ L ]

672

0,22 (2,25)

12

9,3

0,575

11

75

16,51

14,99

3,14

8,32

13

30

63

15

14,3

10

10-16

125

26

21

18,5

ЭКГ-12АЭКГ-12А

8

FRONTAL EQUIPMENTCrowd mechanism type

Stick design

Boom design

Boom sheave diameter, mm

rack

single-beam boom

double-beam stick

2130

ELECTRIC EQUIPMENTElectric drive type

Voltage, kV

Frequency, Hz

Main transformer power, kVA

6

1250

50

transistorconverter - motor

ELECTRIC MOTORS OF MAIN DRIVES

450

450

750

450

Qty, pcSpeed, rpmPower, kWDrive

Hoist

Crowd

Swing

Propel

200

120

200

175

4

4

1

2

GEARBOXES

Two-stage in-line

Two-stage in-line

Two-stage in-line

Two-stage planetary

Qty, pcDesignGearbox

Propel

Crowd

Hoist

Swing

2

1

1

4

REVOLVING PLATFORMLength, m

Width, m

13,4

9,2

SWING GEAR & BEARING ASSEMBLYDesign

Gear rim diameter, mm

number of teeth / module

with conical rollers

162/30

4907

PROPEL MECHANISMDesign

Overall length, m

Overall width, m

Track gauge, m

Track width, m

number of links

pitch of links, mm

Speed, km/h

two-track mounting withlarge diameter rollers

10,495

7,29

46

1,1

9,09

1,8

500

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SHOVELEKG-12А

9

ROPES AND GUY STRANDS

Hoist

Boom suspension

Bucket door opening

Auxiliary winch

GOST

GOST

Guy strand

GOST

Diameter, mmQty, pcTypeStructure

2

4

1

1

Length, m

52

15,5

70

13,5

83

14,78

20

250

MAIN DRIVE MOTOR PARAMETERS

Hoist motor

Crowd motor

Swing motor

Propel motor

Dipper door opening motor

Cable drum motor

DPE-400-1/1U2

MPVE 120-750U2

D 31 UHL1

DPE-400-1/2U2

DPE 350-2/1U1

D 12 UHL2

Speed, rpmPower, kWTypeMotor

200

200

120

175

8

2,5

Q-ty, each

450

750

870

450

450/1000

1180

2

1

4

2

1

1

экг-18

10

Overall dimensions of machine units

312M BUCKET

Height, mm – 3070

Width, mm 3640

Depth, mm 2890

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Weight, t – 27

HANDLE

Height, mm – 1000

Width, mm 3320

Length, mm 10700

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–

Weight, t – 18,3

BOOM

Width, mm – 2500

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Weight, t – 62,1

Width with mountedequipment, mm 3955

Length, mm 16570

A-LEG

Height, mm – 9000

Width, mm 4000

Length, mm 6000

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–

Weight, t – 8,9

CRAWLER ASSEMBLY

Height, mm – 1910

Width, mm 2530

Length, mm 10285

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Weight (of assembled frame), t – 63,6

TRACK

Link height, mm – 382

Ling width, mm 710

Link length, mm 1800

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Weight, t – 36,3

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SHOVELEKG-12А

11

PROPEL GEARBOX

Height, mm – 2190

Width, mm 1750

Depth, mm 1255

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–

Weight, t – 4,99

OPERATOR'S CABIN

Width, mm – 2460

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–

Weight, t – 7,5

Height, mm 5220

Length, mm 4390

CABLE DRUM

Height, mm – 1850

Width, mm 4340 –

Weight, t – 4,7

HOIST WINCH DRUM WITH CABLE

Diameter, mm – 1350

Width, mm 770

52

–

Cable diameter, mm –

Weight (w/o cable), t – 2,38

GEAR RIM

OD, mm – 4907

Height, mm 335 –

Weight, t – 8,6

BOTTOM FRAME

Height, mm – 1934

Width, mm 4180

4200

–

Length, mm –

Weight, t – 26,3

200 125 320

117

12

CURRENT COLLECTOR ENCLOSURE

Height, mm – 3091

Weight, t – 0,64

BEAM CRANE

Length, mm – 6235

–

Weight, t – 0,41

Height, mm 1128

ROLLER CIRCLE

Height, mm – 240

Diameter, mm 4000 –

Weight, t – 8,5

SWING MECHANISM

Height, mm – 3950

Weight, t – 21,5

VENTILATION UNIT

Height, mm – 2372

Width, mm 7925 –

Weight, t – 3,023

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SHOVELEKG-12АOverall dimensions of machine units

13

MIDDLE PART OF THEREVOLVING PLATFORM

Width, mm – 4500

Height, mm –

–

Weight, t – 17

1070

Length, mm 4880

AIR COMPRESSOR UNIT

Height, mm – 1792

Width, mm 1346 –

Length, mm– 2172

Weight, t – 1,77

CENTRAL TRUNNION

Diameter, mm – 500

Height, mm 2410 –

Weight, t – 3,1

FRONT PART OF THEREVOLVING PLATFORM

Height, mm – 1665

Width, mm 4536

Length, mm 6800

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–

Weight, t – 33,5

4

16

8

12

0

ДМ8008-ВУф

kgf/cm

1.5

2

HOIST WINCH GEARBOX

Height, mm – 2350

Width, mm 2300

Length, mm 4030

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–

Weight, t – 29,4

COUNTERWEIGHT ASSEMBLY

Height, mm– 100

Width, mm – 2835

Length, mm – 8453

Weight, t – 12

14

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SHOVELEKG-12АNOTES

15

Uralmashplant is one of the leading Russian machine-building plants. For more than 80 years Uralmashplant has been a key provider of basic machinery for mining, chemical, metallurgical, construction, oil-and-gas, and power engineering industries, since fundamental national industries have originated here, at the Ural heavy machine-building plant.

The trademark "UZTM" is well-known all over the world. The plant supplies its products to CIS countries, Western and Eastern Europe, Middle East, South and Southeastern Asia, Africa, North and Latin America. Uralmashplant has its own highly efficient design center. The plant comprises welding, machining and assembly, heat-treatment, and toolmaking facilities.

Uralmashplant offers complex solutions from technology development and engineering to supply, installation, and maintenance services. Uralmashplant offers to its customers highly-effective, reliable, low maintenance, energy-saving, and highly automated equipment designed with a glance to actual ecological requirements.

CONTACTS

620012, Pervoi Pyatiletki Sq., Ekaterinburg, RussiaE-mail: Fax: Information Service: Sales DirectionProcurement and Logistics DirectionPress CenterMuseum of Uralmash History

mail@uralmash.ru+7 (343) 336-60-40

+7 (343) 336-69-79 +7 (343) 327-59-31+7 (343) 336-69-01+7 (343) 336-60-54+7 (343) 327-10-63

ABOUT US

Mining equipment:– – – – –

crawler-type excavators,walking and crawler-mounted draglines,jaw and cone crushers for all reduction stages,ball and rod mills, autogenous and semi-autogenous mills,crushing and screening plants for producing cubiform particles.

MAIN PRODUCTS

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