technical specification robbins 91rh c_tcm835-3329419.pdf

8/10/2019 Technical specification Robbins 91RH C_tcm835-3329419.pdf

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Atlas Copco

Technical specification

Robbins 91RH C

Raiseboring equipment

The Robbins 91RH is the latest addition to the Robbins low profile seriesthat brings the advantage of Raiseboring to more underground mine

locations. Its modular design allows it to be disassembled into relativelysmall components for easy transport through smaller haulage ways, yetthe powerful hydraulic drive of the 91RH makes it ideal for large raisesup to 5.0 m (17 ft)

Features

Control system The Robbins raise drills apply the well-established and

proven Atlas Copco Rig Control System(RCS) which adds

reliability and user friendliness The components of the RCS are common and interchange-

able

The drill rig computer technology improves the drilling ac-

curacy, equipment reliability and serviceability

Integrated diagnostics and event logging system to assist in

equipment maintenance

The system prevents human errors by built in interlocks

Standard functions include anti-jamming, auto makeup and

gradual ramp up of power at the start of pilot drilling and

reaming

Trolley mounted operator panel with full-color display

Drive system Hydraulic drive with variable speed and excellent torque

limiting control.

Dual hydraulic pumps for high machine availability.

Derrick The hydraulic drive features variable speed and good torque

limiting control. The well proven RCS system adds reliabil-

ity and user friendliness. A gearbox incorporated in a barrel allows the drive train to

be disassembled into smaller components without losing

the preload of the main bearings. This saves time during

maintenance & transportation.

A simple in-line drive system provides balanced thrust loads

to improve cutting action.

A sliding fork worktable wrench in combination with the

semi-automatic drivehead wrench eliminates the need to

handle heavy wrenches.

Rigid crosshead guide columns provide efficient torque

reaction extending the service life of the thrust cylinders.


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Robbins 91RH C

Control system

Advanced radio remote control 15m cable to op-panel Length sensor for auto shut down Angle indication system Auto make up logg Power management Auto makeup log Net force control Bailing pressure supervision Reamer drop detection system when using catch rope

Motor

Two hydraulic motors connected in series

Radial-piston type with a rotating cylinder hollow shaft,

stationary housing

Hydrostatic system

Gearbox

Planetary-type reduction 2 stage

Main spherical roller thrust bearing for reaming

Smaller thrust bearing for pilot hole drilling

A radial roller bearing for radial loads

Spring pre-loaded bearing

2 gear ratio 4,13:1 8,26:1

Drivehead

Floating drive box with DI-22 thread

Lubrication

Hydraulic driven submersed gear pump, build in to the gear

box ......................................................19 l/min (5 US gal/min)

Filtration ...................................................................25 micron

Water cooled

Wrench system

Drivehead -Semi automatic wrench

Worktable -Hydraulic horse shoe wrench

Pipeloader

Ground loading

Easy and safe pipe handling

Sturdy design

Mounted on either side

Drive system

Power.............................................................................500 kW

Rotation pumps................................................. 2x355 cm3/rev

Max pump pressure........................................................330 bar

Oil reservoir....................................................... 400 l (105 gal)

Closed loop piston pump

Oil ltration..............................................................10 microns

Mineral hydraulic oil grade....................................................68

Specifications

Standard protection ground fault, over/under voltage

Phase fault and emergency stop

Thermal overload protection for electrical motors

Anti-condensation heaters in electrical cabinet

Built in heaters in the electrical motors

Drive motor started by star/delta

Direct start of thrust motor

Power management: If there are power limits on site, this

feature monitor the power outtake of the machine and limits it

to a preset value

Auxiliary outlet ..........................................115 V/230 V (16A)

Main breaker with overload and short circuit protection

Electrical system

Thrust system

Thrust system

Power....................................................75/85 kW at 50/60 Hz

Oil reservoir......................................................580 l (153 gal)

Oil ltration............................................................10 microns

Mineral hydraulic oil grade.................................................68

Traverse circuit

Pressure compensated variable displacement piston pump

Travers pump..................................260 cm3/rev (8.5 in3/rev)

Travers pump max pressure.......................................230 bar

Feed circuit:

Pressure compensated variable displacement piston pump

Thrust pump......................................40 cm3/rev (2.4 in3/rev)

Trust pump max pressure...........................................330 bar

Auxiliary circuit:

Fixed displacement gear pump

Auxiliary pump...............................41 cm3/rev (1.34 in3/rev)

Auxiliary pump max pressure....................................210 bar

Proportional control of traverse and pipeloader movement

Both hydraulic systems are monitored by the RCS system,

temperature, pressures, levels and contaminationBoth power packs comes with Off-line ltration system, electricalll/drain pump and 10 m hoses. They are water cooled and preparedfor external closed loop cooling system


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Robbins 91RH C

Optional equipment

Derrick Electrical driven lubrication pump motor Extra-long turnbuckles for drilling angles below 60

degrees

Control System Measure While Drilling (MWD) Bailing pump control and power outlet (37kW) 20 or 30 meter cable to OP-panel Rig Remote Access (RRA)

Electrical system Electrical standards UL, CSA and AS3000 20 or 30 meter cable to Derrick

Control station Platform with chair

Hydraulic system 15 or 20 meter hoses to Derrick Bulid-in heater in oil reservoirs High pressure ltration Fire suppression system

Transporters Diesel crawler Sled assembly

Operating equipment

Bit breaker box 13-3/4, 15

Starter bushing

Blooie system provides a controlled exit for return

bailing uid and cuttings during pilot hole drilling

Float valve

Tools Floatbox installation tool The makeup and breakout tool (MBT)

Cooling unit A separate cooling cabinet with air cooled radiators for

gearbox, drive and thrust pack, all in closed loops withquick disconnections.

DERRICK 91RH C

Height extended 5 100 mm 201

Height retracted 4 100 mm 162

Width 2 300 mm 90

Width pipeloader included 3 800 mm 150

Depth 2 700 mm 107

Weight 32 100 kg 70 768 lb

Weight pipeloader included 33 700 kg 74 296 lb

Drill angle (from horizontal) 90-60

DRIVE PACK

Length 3 400 mm 134

Height 1 800 mm 71

Width 1 900 mm 75

Weight 7 100 kg 15 650 lb

Measurements and weights

H

DW

H

W L

DRIVE PACK

DERRICK

THRUST PACK

Length 2 300 mm 91

Height 1 500 mm 60

Width 1 600 mm 63

Weight 2 800 kg 6 173

H

W L

THRUST PACK

H


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98512

965

01a

06/2012

Robbins 91RH C

C

opyright2012,

Atlas

CopcoRockDrillsAB,

rebro,

Sweden.

AllproductnamesinthispublicationaretrademarksofAtlasCopco.

Anyunauthorizeduseorcop

yingofthecontentsoranypartthereofisprohibited.

Illustrationsan

dphotosmay

showequipmentwithoptionalextras.Nowarrantyismaderegardingspecificationsorotherwise.

Specificationsandequipmentaresubjecttochangewithoutno

tice.

ConsultyourAtlasCopcoCustomerCenterforspecificinformation.

Operation data

DERRICK 91RH C

Raise diameter Nominal 4.5 m 15 ft

Range 2.4-5.0 m 8-16 ft

Raise length Nominal 600 m 19 700 ft

Maximum 1 000 m 3 280 ft

Maximum torque Reaming 450 kNm 330 000 ft.-lbsBreak-out 700 kNm 516 300 ft.-lbs

Reaming thrust Operating maximum 6 700 kN at 330 bar 1 510 000 lbs at 4 800 psi

Stroke 2 160 mm 85

RPM Piloting 0-50 rpm

Reaming 0-7 rpm

Traverse rate Fast traverse rate 1.7 m/min 5.6 ft/min

Feed rate 0.3 m/min 1 ft/min

BailingWater 600 l/min 159 gal/min

Air 18 m3

/min (7 bar) 636 ft3

/min (100 psi)

Electrical

Power supply 580/650kW (50/60Hz)

Voltage 380 -1000V

Frequency 50-60 Hz

Power requirement 706/791 kVA (50/60Hz)

Drill pipeDiameter 327 mm 12-7/8

Length s/s 1 524 mm 60

Pilot hole Diameter 349 mm 13-3/4

Optional 381 mm 15

Cooling water at 25C inlet temp. 160 l/min 42 gal/min

technical specification robbins 91rh c_tcm835-3329419.pdf

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